ROTARY TOILET PLUNGER AND VALVE, DRIVE, AND BRAKE DEVICES

Abstract

 A rotary toilet piston (3) includes a housing of the piston and a lifting cylinder (9). A bearing (5) is mounted on an outer wall of a top portion of the lifting cylinder (9), an inner sleeve of the bearing is fixed on an outer wall of the lifting cylinder (9), an outer sleeve of the bearing is mounted in a in a bearing slot of the piston (3), and the piston (3) and the lifting cylinder (9) can rotate relative to each other by means of the bearing (5). A rotary toilet piston in which a shaft-sleeve structure is used between a rotary piston (3) and a lifting cylinder (9) to replace a bearing structure is further provided. A brake device for controlling the rotary toilet piston, a drive device for driving the rotary toilet piston, a water-jet control device of the rotary toilet piston, and a water-jet pipe of the rotary piston are further provided.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to the toilet field.

BACKGROUND OF THE INVENTION

[0002] The present invention relates to the toilet field, and in particular, to Chinese Patent Application No. CN102864830A published on January 9, 2013.

SUMMARY OF THE INVENTION

[0003] According to the present invention, a rotary flush toilet piston 3 includes a housing of a piston 3, a lifting cylinder, and a bearing 5. A bulge 4 is formed around a top portion of the cylinder. Below the bulge is an outer wall of the cylinder. The bearing 5 is mounted on an outer wall of the top portion of the lifting cylinder. An inner sleeve of the bearing 5 is fixed on the outer wall of the cylinder. A snap ring 25 is disposed below the inner sleeve of the bearing, to fix the bearing on the cylinder. An outer sleeve of the bearing 5 is mounted in a bearing slot of the piston. A snap ring 24 is disposed below the outer sleeve of the bearing to reinforce axial fixation of the bearing. The piston and the cylinder may rotate relative to each other by means of the bearing 5. The sealing piston may rotate relative to a toilet opening. A baffle 31 is mounted between the cylinder and the piston housing below the bearing 5. The rotary toilet piston further includes an impeller located on the piston housing. A position of the impeller and a corresponding position of a water spraying pipe are preferentially optimum positions with a highest angle at which water impacting the impeller is most efficiently used.

[0004] The bearing between the toilet lifting cylinder and the rotary piston may be not mounted. The original rotary piston having the bearing slot for mounting the outer sleeve of the bearing is changed to a rotary piston has a shaft hole 20 on an inner side corresponding to the outer wall of the lifting cylinder. The lifting cylinder and the shaft hole of the rotary piston are in a complete shaft-sleeve structure, and can still rotate relative to each other even without a bearing between the shaft hole and the cylinder, leading to a simple toilet structure.

[0005] The toilet cylinder outer wall and the piston bearing slot or piston bearing hole may also be in a corresponding truncated cone structure.

[0006] An impeller 6 is mounted on the sealing piston 3. The impeller is fixedly connected to the piston. At a position on a same horizontal plane as the center of the impeller, two water spraying pipes 20 are disposed in an interlayer of the cylinder, pipe inlets are communicated with a cavity of the water spraying cylinder, and pipe outlets are close to blades. Water outlets 30 are disposed on a lower end of the periphery of the piston.

[0007] An upper portion of the impeller 6 is fixedly connected to the piston. The impeller and the connection between the impeller and the piston are located in space inside the piston. In the space inside the piston, large space is left around and below the impeller, so that tail water impacting the impeller drops down quickly, thereby reducing rotation resistance of the impeller. Horizontal planes on which the center of the impeller and the centers of the water spraying pipes 20 on the cylinder overlap or are parallel. Nozzles of the water spraying pipes are close to the impeller, and water flows from the water spraying pipes may all pass through the impeller. A surface of the impeller that is impacted by water is a cambered surface. There is a small difference between two included angles formed by a track along which sprayed water impacts the impeller and the cambered surface, and an included angle between a direction in which the water impacts the impeller and a time motion direction of impacted points on the impeller is small. The nozzles of the water spraying pipes need to be close to a rotation track of the impeller. In this way, potential energy of high-pressure water impacting the impeller may be more converted into kinetic energy for rotating the impeller.

[0008] According to the present invention, the impeller on the piston may be mounted inside the piston or on an exterior vertical surface, a side surface, or a bottom surface of the rotary piston.

[0009] According to the present invention, the impeller further includes an impeller structure that is not exposed on the piston surface and disposed inside the piston in an inlaying, miller processing, or casting manner. Relative positions and angles between the water spraying pipes and the impeller are required the same as the water spraying pipes and the exposed impeller, both of which need to satisfy that potential energy of high-pressure water impacting the impeller may be more converted into kinetic energy for rotating the impeller.

[0010] The impeller 6 is entirely or partially disposed inside the piston. The impeller is located in a groove 83 on the sealing piston, and the impeller may be as wide as the groove, or may be narrower than the groove. The groove may be located on a horizontal surface of the piston, or may be located on a vertical surface of the piston. The impeller that is entirely or partially located inside the groove helps reduce the size of the piston to some extent, and helps mount the impeller securer.

[0011] The present invention further includes a toilet rotation drive device. The device includes a lifting cylinder and a water spraying pipe. An inlet of the water spraying pipe 20 is communicated with a cavity of the lifting cylinder, and the water spraying pipe sprays water to the impeller on the rotary toilet piston, to rotate the toilet piston.

[0012] According to the present invention, the lifting cylinder includes an inner layer and an outer layer, and is in an integral interlayer structure or a partial interlayer structure, or in an integral single-layer structure.

[0013] When the toilet water spraying pipe sprays water to the impeller, the impeller is impacted and rotates, and the water spraying pipe 20, the cylinder 9 in which the water spraying pipe 20 is located, and the piston 3 rotate reversely under stress. A rotation speed of the piston 3 and the cylinder 9 may be adjusted by comparing the weight of the two and controlling friction between the cylinder and a fixed portion of the toilet. According to the present invention, alternatively, the lifting cylinder may be fixed, and the rotary piston rotates alone.

[0014] A sealing plate is disposed on a bottom portion of the rotary piston. The sealing plate may be a plane plate or a cone plate, or in a barrel-like structure. The sealing plate may be screwed to the piston 3 or connected in another manner. A lower bottom of the piston may overlap an upper bottom of the sealing plate in a sealed manner. After connected to the piston, the sealing plate becomes a part of the piston. The lifting cylinder of the toilet passes through the middle of the sealing plate with a certain gap 27 left.

[0015] The piston structure is described by using an example in which the sealing plate is in a barrel-like structure. An outer edge of the lower bottom of the piston 3 overlaps a side surface of the periphery of the sealing plate 65. The lifting cylinder of the toilet passes through the middle of the sealing plate with a certain gap 27 left. A tail water spraying pipe 63 is disposed at the periphery of the sealing plate. Tail water impacting the impeller passes through a water spraying hole 63 on the sealing plate when rotating with the piston, and may flush the toilet pipe, and some tail water flows out of the gap 27 to flush the lifting cylinder of the toilet. The sealing plate is added below the piston, so that the tail water impacting the impeller may rotationally flush the vertical pipe of the toilet or flush the lifting cylinder of the toilet, improving water utilization.

[0016] Several water spraying pipes 63 are disposed at the periphery of the sealing plate 65. A groove 61 is formed on the upper bottom, and is communicated with a piston pipe 30. When the piston 3 is securely connected to the sealing plate, the groove 61 is correspondingly communicated with the water spraying pipe 30 on the piston. The number of pipes 62 and an angle are designed as required.

[0017] Space inside the sealing plate is preferably in the shape of a cone with the edge lower than the middle, so that when the toilet piston rotates, tail water impacting the impeller may all smooth flow out of the water spraying hole 63.

[0018] According to the present invention, a brake hub structure surface with a cylindrical hole or tapered hole inner wall is disposed inside the toilet piston, a scalable brake shaft pipe is disposed in the lifting cylinder of the toilet, and the hub structure surface is friction-fit to a tail end of the shaft pipe. The piston hub structure surface may also be an arc-shaped inner wall or surface or a plane at another position on the piston, as long as the inner wall or surface or the plane is friction-fit to the scalable shaft pipe of the toilet. The friction-fit surface and plane of the toilet piston include the surface or plane of the sealing plate that is connected with the piston and becomes a part of the piston.

[0019] There may be one or more horizontal brake devices 67 and vertical brake devices 66 in the rotary toilet piston. The device includes a toilet lifting cylinder 9, a cylindrical or tapered hole shaped hub structure surface or plane 68 inside the toilet piston, an outer shaft pipe 156 with an outer side corresponding to a hub and a piston 154 fixedly connected to the outer shaft pipe 156, an inner shaft pipe 157 and a piston 152 fixedly connected to the inner shaft pipe 157, a water inlet 153 of the inner shaft pipe, and a spring 155. The inner shaft pipe 157 has one end fixedly connected to the lifting cylinder and communicated with a cylinder cavity, and the other end sealed. A piston 152 is fixed on an outer end of the sealed end, and the piston 152 may slide on an inner wall of the outer shaft pipe 156 in a sealed manner. The outer shaft pipe 156 has one end sealed and corresponding to the piston hub, and one end fixedly connected to the piston 154. The piston 154 may slide on an outer wall of the shaft pipe 157 in a sealed manner. The water inlet 153 is disposed between the piston 152 of the inner shaft pipe 157 and the piston 154. The spring 155 is sleeved between the piston 154 of the outer shaft pipe 156 and the outer wall of the lifting cylinder. A side on which the outer shaft pipe corresponds to the piston hub is coated with a layer of wear resistant material 151 corresponding to the piston hub, and the layer of wear resistant material is preferably of the same arc as the inner wall of the hub.

[0020] When the toilet is motionless, the piston hub tightly abuts the outer shaft pipe (156) under the action of the spring. When the water spraying pipe (20) sprays water to the impeller and the piston rotates, water pressure in the brake inner shaft pipe causes a gap to form between the piston hub and the outer shaft pipe.

[0021] The brake device is used, so that after the toilet water spraying pipe 20 stops spraying water, when the piston 3 continues rotating due to inertia, before the piston touches the toilet opening, water pressure in the brake device decreases, so that the outer shaft pipe tightly abuts the piston hub, the piston stops rotating relative to the cylinder, and then the piston rises and seals the toilet opening. In this way, the friction and wear between the piston between the toilet opening may be reduced.

[0022] The brake device on the toilet lifting cylinder and the water spraying pipe on the cylinder may be in a same vertical direction on the cylinder, or may be in different vertical directions.

[0023] According to the present invention, a protruding piston cap shaped structure part is disposed in the center of the top portion of the rotary toilet piston. A piston cap in the following specification is short for the rotary piston cap shaped structure part. The water inlet of the water spraying pipe 30 is disposed in the piston cap, and a water spraying hole of a branch water spraying pipe 30 is disposed at a position with a deep concave on an arc surface of the piston housing. A water spraying hole is formed on the vertical surface around the piston cap, so that when the piston cap rotates, sprayed water may flush the toilet opening and pipe well.

[0024] The present invention further proposes solutions of spraying water in the toilet from the inner shaft pipe to the piston cap and sealing between the shaft pipe and the piston cap, to maximize utilization of high-pressure water.

[0025] A fixed bulge 32 is disposed on a bottom portion of the piston cap, and corresponds to a fixed bulge 36 on the water spraying outer shaft pipe of the toilet. The two bulges are in contact after the interlayer cylinder moves down, and seal each other when there is certain pressure. Sealing may also be implemented when the two bulges rotate relative to each other.

[0026] A water spraying control valve is disposed on a top end of a toilet water spraying shaft pipe 2. The valve includes a rotary piston, the shaft pipe 2, a cylinder structure groove 40 on the top end of the shaft pipe, a piston 39 in the groove, a spring 38, a piston snap ring 34, and a water inlet 35 on the groove. The rotary piston is a strut 33 in the piston cap. A top portion of the groove seals the top portion of the water spraying shaft pipe 2, an interlayer 37 having a certain width is formed between a groove outer wall and a shaft pipe inner wall, the spring is disposed at a bottom portion of the groove, a top portion of the spring abuts a lower bottom of the piston 39, and an upper bottom of the piston is fixed in the groove by the snap ring. When the piston is at a highest position in the groove, a groove wall covered by a piston outer wall has the water inlet 35, and the strut 33 is located right above the piston. The cross-sectional area of the strut is less than an exposed area of the upper portion of the piston 39. When the piston moves down when receiving downward pressure of the strut, the water spraying hole 35 is no longer covered and blocked by the piston, and may spray water, so that water may enter the water spraying pipe 30 in the piston cap and be sprayed.

[0027] The water spraying control valve on the top end of the toilet water spraying shaft pipe 2 may have a second structure, in which the valve is connected to the lower portion of the rotary toilet piston in a sealed manner, the inner wall of the piston cap shaped structure part is an annular plane, and when the toilet lifting cylinder and the piston move down, the valve structure and the piston cap may seal each other in motionless and rotating states.

[0028] The water spraying control valve structure on the toilet water spraying inner shaft pipe includes a rotary piston, a shaft pipe 2, a cylinder 59 outside the shaft pipe, a piston 60, a spring 62, and a water inlet 63. The rotary piston is a piston cap shaped annular lower bottom part. The shaft pipe is a toilet water spraying inner shaft pipe with a top end sealed. A top end of the shaft pipe has a small segment of a truncated cone outer wall, and a cylindrical shaft pipe is below the truncated cone outer wall. The piston 60 has two inner wall structures: a truncated cone side surface inner wall and a cylindrical side surface inner wall, and the piston 60 has a cylindrical side surface outer wall structure. A lower bottom of the cylinder 59 is connected to the shaft pipe outer wall in a sealed manner. The cylinder inner wall and the piston outer wall are in a cylinder and piston coordination structure. The piston may move up and down a certain distance in the cylinder, to seal air and water above and below the piston. The cylindrical inner wall of the piston and the cylindrical outer wall of the shaft pipe may also seal air and water above and below the piston 60. Below the piston 60 in the cylinder, a sealed and pressured vessel that moves up and down with the piston and has a changeable volume may be disposed, and pressured air in the vessel may move the piston up. An interlayer having a certain width is formed between the cylinder inner wall and the outer wall of the shaft pipe 2, the spring is located on a bottom portion of the interlayer, and a top portion of the spring abuts the lower bottom of the piston 60. The truncated cone outer wall of the inner shaft pipe and the truncated cone inner wall of the piston may coordinate closely when the spring 62 abuts the piston and the piston is at a highest position in the interlayer. The piston seals the water spraying hole 63 on the shaft pipe, and the annular lower bottom of the piston cap is located right above the piston. An outer diameter of the annular lower bottom of the piston cap is less than an outer diagram of the piston 60, and a diameter of the piston cap inner wall is greater than a maximum diameter of the truncated cone side surface outer wall of the water spraying shaft pipe 2 surrounded by the piston 60. When the piston moves down when receiving downward pressure of the annular lower bottom of the piston cap 6, the water spraying hole is no longer covered by the piston, so that sprayed water may enter the toilet piston water spraying hole. Meanwhile, when the piston is pressured by the annular lower bottom, sealing may be precisely implemented between the piston and the annular lower bottom of the piston cap, and when the piston and the shaft pipe 2 rotate relative to each other, good sealing may also be implemented. A shaft lever 92 is disposed below the piston 60, a shaft sleeve 93 is disposed on the cylinder bottom portion, and the shaft lever may move up and down in the shaft sleeve. The shaft lever and the shaft sleeve may prevent the piston cap from driving the piston to rotate when the piston cap and the shaft pipe 2 rotate relative to each other. To enable the piston (60) to flexibly move up and down, certain gaps may be respectively left between the cylindrical outer wall and the cylindrical inner wall of the piston, the inner wall of the cylinder (59), and the cylindrical outer wall of the shaft pipe (2). Accordingly, after water enters the shaft pipe, a little amount of water flows out of the gaps, resulting in that the toilet wastes water.

[0029] According to the present invention, the toilet lifting cylinder may be an integral interlayer structure, including a cylinder inner layer and outer layer. A top end and bottom end of an interlayer between the inner layer and the outer layer are respectively the cylinder top end and bottom end, and the interlayer top end and bottom end are totally isolated from the outside in a sealed manner.

[0030] The integral interlayer lifting cylinder includes a lower piston 8, a toilet water spraying shaft pipe 2, an upper piston 7, and a water inlet 23. An inner wall of the interlayer structure lifting cylinder is fixedly connected to the lower piston. An outer wall of the toilet water spraying shaft pipe is fixedly connected to the upper piston. The toilet water inlet is disposed between the two pistons. The inner wall of the interlayer lifting cylinder has a water inlet 26, an outer wall has a water spraying hole 22, and a control valve is disposed on an upper end of the inner shaft pipe 2.

[0031] A spring 10 is disposed below the fixed lower piston 8 of the lifting cylinder. A lower end of the spring abuts a spring support 11, the support is fixedly connected to the shaft pipe 2, and the support and a lifting cylinder inner wall are also in a piston and cylinder coordination structure. The toilet shaft pipe and the lifting cylinder inner wall below the lower piston have no water hole, and the lower piston, the support, and the lifting cylinder form a volume changeable, sealed, and pressured cylinder device. The sealed and pressured cylinder has a certain pressured gas, and always poses an upward elastic force to the lower piston. If the gas in the pressured vessel is an inactive gas rather than oxygen, the spring in the pressured vessel is eroded slower. The sealing between the toilet opening sealing piston and the toilet opening and the upward resilience of the sealing piston may be ensured by the spring 10 or the volume changeable, sealed, and pressured cylinder or both. When the two elastic forces are both applied, the toilet may be less affected when the spring is fatigued, and a height between the lower piston and the support 11 when only one type of resilience is applied, and water erosion of the spring when the spring is used alone may be reduced. If a lower end of the lifting cylinder has an interlayer structure, the cylinder inner wall below the lower piston has no water spraying hole, and the cylinder water spraying hole is on an outer layer of the interlayer, water may continue to be sprayed to the toilet pipe. If the lower end of the toilet water spraying cylinder is a single-layer structure, and a cylinder wall between the lower piston and the support has a water spraying hole, they cannot form a sealed cylinder structure. The lifting cylinder inner wall below the lower piston in the single-layer structure has no water spraying hole, and the lower piston, the support, and the lifting cylinder may form a volume changeable, sealed, and pressured cylinder device.

[0032] The toilet lifting cylinder further has one or more water spraying pipes (20), inlets of the water spraying pipe is communicated with a cavity of the lifting cylinder, and the water spraying pipe is fixed on the lifting cylinder. The pipe is provided with a control valve 56. For water sprayed by the pipe 20 to the impeller, to obtain a high conversion rate of potential energy of the water, the pipe is bent. Alternatively, the water spraying pipe may be not provided with a valve.

[0033] When the toilet lifting cylinder is an integral interlayer structure, the interlayer lifting cylinder includes a water inlet 26 on an inner wall. The water spraying pipe is communicated with the interlayer of the lifting cylinder, the water spraying pipe is fixed on an outer wall of the interlayer of the lifting cylinder, and the water spraying pipe is communicated with the cavity of the lifting cylinder through the water inlet on the interlayer inner wall.

[0034] The valve 56 mainly includes a valve housing, a valve plug 44, a valve plug hole 41 that is formed by upper and lower parts of the valve housing and through which the valve plug may pass, a rail 42 fixedly connected to the valve plug, and a spring 43 sleeved over the valve plug between the rail and the valve housing. Upper and lower cavities are formed by the valve plug hole in the valve, and water entering the interlayer cylinder enters the upper cavity and is sprayed out from the lower cavity.

[0035] A control device of the water spraying pipe valve 56 includes a lifting cylinder, an upper piston 7, a bracket 55, a ring 45, and a through hole 57. A lower portion of the bracket is fixedly connected to a pull rod of the valve. The through hole horizontally passes through the interlayer lifting cylinder, an upper portion of the bracket is connected to the horizontal ring through the through hole, the through hole is sealed by the interlayer, and water in the interlayer cylinder is not sprayed from the through hole. The through hole is located above the pipe 20 on the lifting cylinder, at which a structure may be replaced by a single-layer structure, and the through hole horizontally passes through the lifting cylinder. The size of the through hole satisfies that when the bracket and the lifting cylinder move up and down relative to each other, the bracket does not touch a cylinder through hole edge. The ring is located in the lifting cylinder, an outer diameter of the ring is less than the diameter of the lifting cylinder inner wall, and an inner diameter of the ring is greater than an outer diameter of the sealing member 36 on the shaft pipe. After the rotary toilet piston 3 moves down some distance, the upper piston below the ring may prevent the ring and the bracket from further moving with the valve 56, but the pipe and the valve may move down further, to open the valve. A maximum distance that the rotary piston and the lifting cylinder move down needs to satisfy that when the sealing piston moves down at a maximum distance, at least a part of the lower portion of the upper piston seals the lifting cylinder inner wall below the through hole 57, that is, water in the lifting cylinder cavity cannot be directly leaked from the through hole.

[0036] Alternatively, the valve controlling the water spraying pipe 20 may have the following structure in which the valve plug has a through hole:

[0037] The valve includes a valve cavity 74, a valve plug 78, a valve plug pull rod 75, at least one intake pipe 79, at least one outlet pipe 76, a movable bracket 70, a rail 73, a fixed bracket 71, and a spring 72. The valve plug pull rod is fixedly connected to the valve plug, the valve plug pull rod passes through a top portion of the cavity, and the pull rod has a fixed rail. The fixed bracket is disposed outside the valve cavity. The spring is sleeved over the pull rod between the rail and the fixed bracket, the pull rod is connected to the movable bracket outside the cavity, and the bracket is connected to the horizontal ring through the through hole on the interlayer lifting cylinder. When the valve plug is free from an external force, the valve plug outer side surface may cover and block at least all intake pipes, or cover and block at least all outlet pipes, or cover and block all intake and outlet pipes, and the valve is closed. After the valve plug moves due to an external force, the intake and outlet pipes of the valve are no longer blocked by the valve plug, and the valve is opened. The valve is also characterized in that opened and closed states depending on whether the valve plug receives an external force may be exchanged.

[0038] To reduce resistance of upward and downward movement of the valve plug in the cavity, the valve plug is provided with a through hole 77 passing through upper and lower surfaces of the valve plug, so that water above and below the valve plug may be communicated.

[0039] If valve opening and closing have a high sealing requirement, sealing between the valve plug and the cavity inner wall needs to be implemented very well, and accordingly causes large friction between the valve plug and the cavity inner wall. To reduce friction, one or more sealing bulges 82 may be disposed on an outer side of the periphery of the valve plug, to correspondingly seal the cavity. By placing the valve plug having the bulge at different positions in the valve cavity, the intake and outlet pipes of the valve may be blocked or communicated in the valve cavity, to close or open the valve.

[0040] To reduce friction and reduce a movement distance of the valve plug, the valve plug may be a structure with two horizontal bulges 80. The two bulges have two vertical sealing bulges 81 respectively connected to upper and lower horizontal bulges, and the two groups of sealing bulges do not intersect. The valve plug having two horizontal bulges and two vertical bulges separates the valve cavity into two partitions, so that the intake and outlet pipes of the valve are blocked or communicated in the valve cavity. When the valve plug receives no external force and is motionless, pipe openings of the intake and outlet pipes of the valve in the cavity are respectively located in the two partitions, and the valve is closed. When the valve plug moves due to an external force, the intake and outlet pipes of the valve are no longer blocked by the bulges of the valve plug, and the valve is opened.

[0041] The bulge and the valve plug may be one piece made of a same material or different materials, or the bulge may be a piston ring or a sealing washer that is friction-fit to the cavity, wear resistant, and may be mounted on and detached from the valve plug. When a detachable piston ring, sealing washer, or sealing strip is used, a corresponding groove needs to be formed on the valve plug. The valve may have one or more pairs of intake and outlet pipes, and the intake and outlet pipes may be located on a same plane, or may be located on different planes.

[0042] The water spraying pipes 20 are preferably distributed horizontally and uniformly. The pipes are bent after extending out of the interlayer cylinder, to implement a desirable angle between a water spraying track of the nozzle and the cambered surface of the impeller, and a large rate of conversion from potential energy of water into kinetic energy for rotating the impeller.

[0043] The lower portion of the shaft pipe fits an inner wall of a toilet stabilization and sealing pipe 19 by using bearings (12, 15), a sealing sleeve 16 is disposed between the bottom portion of the shaft pipe and the sealing pipe inner wall, the shaft pipe, the sealing sleeve, an inner wall of a lower portion of the sealing pipe, and a lower bottom of the toilet pipe form a vessel 29, and an intake pipe 17 is disposed below the toilet.

[0044] In addition to a simple shaft-sleeve structure sealing sleeve, the type of the sealing sleeve further includes oil seal, water seal, mechanical sealing, or the like.

[0045] Alternatively, the shaft pipe 2 may be directly fixedly mounted in the vessel 29 in a sealed manner, so that the shaft pipe cannot rotate, and the bearings (12, 15) between the shaft pipe and the stabilization and sealing pipe are not disposed.

[0046] The foregoing describes main invention solutions of the present invention, and the following describes a third invention solution for the control valve on the top end of the water spraying inner shaft pipe, the toilet piston cap structure, and a connection structure between the water spraying pipe 20 and the lifting cylinder 9 in the entire invention.

[0047] The water spraying control valve of the toilet water spraying shaft pipe includes a toilet water spraying inner shaft pipe 2, a rotary piston 3, a bottom up cylinder structure drum 47, an annular piston 48, a snap ring 52, a spring 49, and a water inlet 50. The rotary piston is a part of an annular lower bottom 54 of the piston cap, an outer wall of the drum and the piston 48 are in a piston and cylinder coordination structure, and a lower opening of the drum is connected to an inner wall of the shaft pipe in a sealed manner. The outer wall of the drum and the shaft pipe inner wall form an interlayer 51 having a certain width. The spring is located at a bottom portion of the interlayer, a top portion of the spring abuts a lower bottom of the piston 48, and an upper bottom of the piston is fixed in the groove by the snap ring. When the piston is at a highest position in the interlayer, the drum covered by a piston inner wall has the water inlet 50, and the annular lower bottom of the piston cap is located right above the piston. The cross-sectional area of the annular lower bottom of the piston cap is less than an exposed area of the upper portion of the annular piston. When the piston 48 moves down when receiving downward pressure of the annular lower bottom, the water spraying hole 50 is no longer covered by the piston, and may spray water, so that water may enter the water spraying hole 29 and be sprayed from the water spraying pipe 30. Meanwhile, when the piston 48 is pressured by the annular lower bottom, sealing may be precisely implemented between the piston and the annular lower bottom, and when the piston and the strut rotate relative to each other, good sealing may also be implemented.

[0048] The upper portion of the lifting cylinder in which the toilet water spraying pipe 20 is located is a single-layer cylinder, and the lower portion is an interlayer cylinder. The pipe is located in the single-layer cylinder, the pipe inlet is communicated with a single-layer cylinder cavity, and the outer wall of the pipe is fixed on the cylinder in a sealed manner.

[0049] Alternatively, the lifting cylinder in which the toilet water spraying pipe 20 is located may be entirely a single-layer structure, the pipe inlet is communicated with a single-layer lifting cylinder cavity, and the outer wall of the pipe is fixed on the outer wall of the cylinder in a sealed manner. The pipe opening is located above the piston 7 when the toilet is motionless, and the position also satisfies that when the toilet lifting cylinder moves down, the position of the pipe opening below the piston ensures that water in the water spraying cylinder may enter the water spraying pipe.

[0050] The lifting cylinder in which the toilet water spraying pipe 20 is located may be entirely an interlayer lifting cylinder, the water spraying pipe is fixed on the outer wall of the interlayer of the lifting cylinder, the water spraying pipe is directly communicated with the cylinder cavity, the water spraying pipe passes through the lifting cylinder outer layer, and the water spraying pipe is fixed on the cylinder outer layer in a sealed manner, preventing leakage.

[0051] The lifting cylinder is fixedly connected to the water spraying pipe 20, preventing leakage. The connection surface between the lifting cylinder inner wall and the water spraying pipe is smooth, on which the upper piston 7 on the toilet cylinder inner wall may move smoothly.

[0052] The opening of the water spraying pipe 20 is located below the piston 7 in the cylinder when the toilet is motionless, and the position satisfies that when the toilet lifting cylinder moves down, the opening of the pipe 20 is at such a preferred position below the piston 7 that when the rotary piston is close to the bottom end, the water spraying pipe 20 starts to spray water. Alternatively, the pipe opening may be not at the preferred position but between the upper and lower pistons of the lifting cylinder.

[0053] In a technical solution proposed by the inventor and published before the earliest priority date of the present invention, the toilet piston, the lifting cylinder, and the inner shaft pipe are all integral, rotation and water intake structures at the bottom end of the toilet are complex, and the toilet is high, making it inconvenient to manufacture, mount, and maintain the toilet. According to the previous invention solution, water in the toilet opening sealing piston and the water spraying shaft pipe connected to the piston need to rotate at the same time, and because there are many toilet water spraying shaft pipes, and good sealing needs to be implemented and accordingly brings frictional resistance, the piston has large rotation resistance, and the toilet needs much high-pressure water.

[0054] Compared with the disclosed toilet patent solution, the present invention requires rotation of only the piston, which greatly reduces the rotation resistance of the piston, so that water with same pressure may rotate the toilet piston faster, and urine and feces on the piston receive a larger centrifugal force when rotating with the piston, making it convenient to flush the toilet; in addition, tail water may flush the toilet pipe.

BRIEF DESCRIPTION OF THE DRAWINGS

[0055] 

Fig. 1 is a schematic structural diagram of an interlayer structure lifting cylinder when a toilet is motionless.

Fig. 2 is a schematic structural diagram of an interlayer structure lifting cylinder when the toilet sprays water.

Fig. 3 is a schematic sectional view of an impeller in a toilet piston 3.

Fig. 4 is a horizontal cross-sectional view of a bracket and ring structure of a water spraying pipe valve control device.

Fig. 5 is a schematic structural diagram of a valve 56.

Fig. 6 is a schematic structural diagram of sealing between a toilet water spraying inner shaft pipe and a piston cap.

Fig. 7 shows a third solution for the toilet water spraying inner shaft pipe control valve and a piston cap structure.

Fig. 8 shows a second solution for connection between a toilet lifting cylinder and a water spraying pipe 20.
(The toilet structure and component not shown in Figs. 6, 7, and 8 are the same as those in Figs. 1, 2, 3, and 5)

Fig. 9 is a structural diagram when a toilet water spraying pipe valve plug has a valve plug through hole.

Fig. 10 is a structural diagram of a horizontal bulge of the toilet water spraying pipe valve plug.

Fig. 11 is a structural diagram when the toilet water spraying pipe valve plug has a vertical bulge.

Fig. 12 is a schematic cross-sectional view of an impeller mounted in a piston groove (the impeller is as wide as the groove).

Fig. 13 is a schematic structural diagram of water spraying of a toilet when an impeller on a sealing piston is mounted in a groove (the impeller is narrower than the groove).

Fig. 14 is a schematic structural diagram of water spraying of a toilet when an impeller on a sealing piston is mounted in a groove (the impeller is narrower than the groove).

Fig. 15 is a schematic structural diagram when a toilet piston is separated from a sealing plate (having a second toilet water spraying shaft pipe control valve).

Fig. 16 shows a toilet having a rotary toilet piston brake device and a toilet piston sealing plate structure (having the second toilet water spraying shaft pipe control valve).

Fig. 17 is a schematic structural diagram of the toilet piston brake device.

DETAILED DESCRIPTION OF THE INVENTION

Embodiment 1

[0056] In this embodiment, the water spraying pipe 20 of the toilet rotation drive device has a valve and a valve control device. The water spraying pipe is communicated with the lifting cylinder cavity through the lifting cylinder interlayer and the water inlet 26, and the pipe opening may move below the upper piston 7 when the cylinder moves down a certain distance.

[0057] When water enters the toilet, high-pressure water first enters the vessel 29 through the pipe 17, and then enters the shaft pipe 2, and enters space between two pistons (7, 8) through the water inlet 23. Meanwhile, the water reaches the cylinder interlayer through the water inlet and enters the inner shaft pipe 157 of the brake device, or directly enters the inner shaft pipe 157 of the brake device. The water also reaches the lifting cylinder interlayer through the water inlet 26, and water is gradually sprayed from the water spraying hole 22 to the toilet pipe inner wall. Due to high water pressure, water reaching the shaft pipe 157 enters space between the piston 152 and the piston 154 through the water inlet 153, so that the piston 154 and the shaft pipe 156 connected to the piston 154 compress the spring 155 and move, to form a gap between the piston hub and the shaft pipe 156. Because a water intake velocity in the shaft pipe 2 is much greater than a water spraying velocity, pressure between the two pistons increases quickly, water pressure causes the lower piston 8 and the connected lifting cylinder and the rotary toilet piston 3 to move down quickly. After the bracket 55 and the ring 45 connected to the valve 56 touch the upper piston 7, they cannot move down further, but the interlayer lifting cylinder and the pipe 20 and the valve 56 that are connected still move down further, so that the valve and the valve plug receive forces in upward and downward directions and the valve is opened, water in the interlayer is quickly sprayed from the pipe 20 to the impeller 6, and the impeller and the toilet piston 3 start to rotate when impacted by high-pressure water.

[0058] Meanwhile, when the piston 3 moves down, the ring 45 quickly passes through the sealing member 36 on the water spraying shaft pipe 2 and the shaft pipe top end control valve. When the piston 39 touches the strut 33 in the piston cap, the strut further moves to a specified position, and the piston 39 also moves down a specified distance, the bottom portion of the piston is pushed by the spring 38, and the water spraying hole 35 on the groove 40 in the shaft pipe is all exposed. Moreover, the sealing member 36 and the sealing member 32 of the piston cap form a sealed structure, and after water is sprayed from the water spraying hole, the water is sprayed to the toilet pipe through the water spraying hole 29 and the pipe 30. The toilet water spraying inner shaft pipe is sealed by the toilet piston cap, so that the sealing member 36 on the shaft pipe may be not disposed. The sealing member 46 is added onto an inner wall of the lower portion of the piston cap, the shaft pipe top end outer wall may be smoothly inserted into the sealing member, and they are in a shaft and sleeve coordination structure. When the outer wall of the upper portion of the shaft pipe 2 enters the sealing member 46 when the piston 3 moves down, the outer wall of the shaft pipe 2 and the sealing member may seal each other in motionless and rotating states.

[0059] When the rotary toilet piston rotates, tail water impacting the impeller reaches the sealing piston bottom portion, and because the piston rotates, the tail water receives a rotation centrifugal force and is sprayed from the piston water spraying hole 31. When water flushing the toilet is drained, water pressure between the upper piston 7 and the lower piston 8 decreases quickly, and when pressure between the two pistons (7, 8) decreases to some extent, pressure between two pistons (152, 154) of the brake device also decreases to some extent. When the elastic force of the spring 155 is greater than the pressure between the two pistons (52, 54), the spring pushes the shaft pipe to touch the piston hub inner wall harder and harder, and finally the piston hub and the interlayer cylinder remain relatively motionless, and almost motionless relative to the toilet opening. In addition, the resilience of the spring 10 pushes the lower piston 8 and the connected lifting cylinder and the piston 3 to move up to a position in the motionless state. During upward movement, water between the upper piston and the lower piston is pushed by the two pistons out of the cylinder water spraying hole, and the two sealing members (13, 14) form a sealed structure. After the pistons are motionless, lower end tail water in the piston 3 flows out from the gap 27 between the piston bottom portion and the lifting cylinder, and flushes the lifting cylinder to some extent.

[0060] When the lifting cylinder and the sealing piston get back to the motionless state, the spring of the shaft pipe upper end control valve also pushes the piston 39 back to the motionless state, and the spring in the valve 56 also pushes the valve plug back to the motionless state.

Embodiment 2

[0061] In this embodiment, the water spraying pipe 20 of the toilet rotation drive device does not have a valve and a valve control device. The water spraying pipe is directly connected to the lifting cylinder cavity, and the pipe opening may move below the upper piston 7 when the cylinder moves down a certain distance.

[0062] When water enters the toilet, high-pressure water first enters the vessel 29 through the pipe 17, and then enters the shaft pipe 2, and enters space between two pistons (7, 8) through the water inlet 23. Meanwhile, the water reaches the cylinder interlayer through the water inlet and enters the inner shaft pipe 157 of the brake device, or directly enters the inner shaft pipe 157 of the brake device. The water also reaches the lifting cylinder interlayer through the water inlet 26, and water is gradually sprayed from the water spraying hole 22 to the toilet pipe inner wall. Due to high water pressure, water reaching the shaft pipe 157 enters space between the piston 152 and the piston 154 through the water inlet 153, so that the piston 154 and the shaft pipe 156 connected to the piston 154 compress the spring 155 and move, to form a gap between the piston hub and the shaft pipe 156. Because a water intake velocity in the shaft pipe 2 is much greater than a water spraying velocity, pressure between the two pistons increases quickly, water pressure causes the lower piston 8 and the connected lifting cylinder and the rotary toilet piston 3 to move down quickly. When the water spraying pipe 20 of the lifting cylinder outer wall moves below the piston 7, high-pressure water starts to enter the pipe 20 and is sprayed to the impeller 6, the impeller and the sealing piston 3 start to rotate, and the lifting cylinder and the connected shaft pipe are impacted by water and start to rotate reversely relative to the impeller.

[0063] When the sealing piston 3 moves down, when the annular piston 48 of the shaft pipe top end control valve touches the annular strut 54 in the piston cap, the strut further moves to a specified position, and the piston 48 also moves down a specified distance, the bottom portion of the piston is pushed by the spring 49, and the water spraying hole 50 on the bottom up drum 47 in the shaft pipe is all exposed. Moreover, the lower bottom of the annular strut 54 and the annular piston form a sealed structure, and after water is sprayed from the water spraying hole, the water is sprayed to the toilet pipe through the water spraying hole 29 and the pipe 30.

[0064] When the toilet piston rotates, tail water impacting the impeller reaches the bottom portion of the piston 3, and because the piston rotates, the tail water receives a rotation centrifugal force and is sprayed from the piston water spraying hole 31. When water flushing the toilet is drained, water pressure between the upper piston 7 and the lower piston 8 decreases quickly, and when pressure between the two pistons (7, 8) decreases to some extent, pressure between two pistons (152, 154) of the brake device also decreases to some extent. When the elastic force of the spring 155 is greater than the pressure between the two pistons (52, 54), the spring pushes the shaft pipe to touch the piston hub inner wall harder and harder, and finally the piston hub and the interlayer cylinder remain relatively motionless, and almost motionless relative to the toilet opening. The resilience of the spring 10 pushes the lower piston 8 and the connected lifting cylinder and the sealing piston 3 to move up to a position in the motionless state. During upward movement, water between the upper piston and the lower piston is pushed by the two pistons out of the water spraying hole, and after some while, the two sealing members (13, 14) form a sealed structure. After the pistons are motionless, lower end tail water in the rotary piston flows out from the gap 27 between the piston bottom portion and the lifting cylinder, and flushes the lifting cylinder to some extent.

[0065] When the interlayer lifting cylinder and the rotary piston 3 get back to the motionless state, the spring of the shaft pipe upper end control valve also pushes the piston 48 back to the motionless state.

Claims

1. A rotary toilet piston, comprising a housing of a piston (3), a lifting cylinder, and a bearing (5), wherein the bearing (5) is mounted on an outer wall of a top portion of the lifting cylinder, an inner sleeve of the bearing is fixed on an outer wall of the cylinder, an outer sleeve of the bearing is mounted in a bearing slot of the piston, and the piston and the cylinder may rotate relative to each other by means of the bearing.

2. A rotary toilet piston, comprising a toilet piston whose inner side is provided with a shaft hole (20), and a lifting cylinder, wherein a top portion of the toilet lifting cylinder and the shaft hole of the piston are in a complete shaft-sleeve structure, no bearing is disposed between the shaft hole and the cylinder, and the piston and the cylinder may rotate relative to each other by means of the bearing (5), so that a toilet structure is simple.

3. The rotary toilet piston according to claim 1, wherein the piston further comprises an impeller(6) located on the piston.

4. The rotary toilet piston according to claim 1 or 2, wherein the piston further comprises a sealing plate(65) on a bottom portion of the piston, the sealing plate is connected to the bottom portion of the piston (3), and the toilet lifting cylinder(9) passes through the middle of the sealing plate with a certain gap (27) left.

5. A brake device for controlling the rotary toilet piston according to claim 1, comprising a toilet lifting cylinder, a cylindrical or tapered hole shaped hub structure surface inside the toilet piston or a piston plane or surface, an outer shaft pipe (156) and a piston (154) fixedly connected to the outer shaft pipe (156), an inner shaft pipe (157)and a piston (152) fixedly connected to the inner shaft pipe (157), a water inlet (153) of the inner shaft pipe, and a spring (155), wherein the inner shaft pipe (157) has one end fixedly connected to the lifting cylinder and communicated with a cylinder cavity, and the other end sealed, the piston (152) is fixed on an outer end of the sealed end, the piston (152) may slide on an inner wall of the outer shaft pipe (156) in a sealed manner, the outer shaft pipe (156) has one end sealed and corresponding to a piston hub, and one end fixedly connected to the piston (154), the piston (154) may slide on an outer wall of the shaft pipe (157) in a sealed manner, the water inlet (153) is disposed between the piston (152) of the inner shaft pipe (157) and the piston (154), and the spring (155) is sleeved between the piston (154) of the outer shaft pipe (156) and an outer wall of the lifting cylinder (9).

6. A drive device for driving the rotary toilet piston according to claim 1 to rotate, wherein the device comprises a toilet lifting cylinder and a water spraying pipe (20), the water spraying pipe is fixedly connected to the lifting cylinder with an inlet communicated with a lifting cylinder cavity.

7. The drive device according to claim 6, characterized by further comprising a valve control apparatus of the water-jet pipe having a valve, wherein the control apparatus comprises the lifting cylinder, a support (55), a circular ring(45), a through hole (57), and an upper piston (7), a lower part of the support is fixedly connected to a lever of the valve of the pipe, the through hole penetrates horizontally the lifting cylinder, an upper part of the support penetrates the through hole to connect to the circular ring, the size of the through hole may satisfy that when the support moves up and down relative to the lifting cylinder, the support does not contact the periphery of the through hole of the lifting cylinder, the circular ring is located inside the lifting cylinder, an outer diameter of the circular ring is less than a diameter of an inner wall of the lifting cylinder, an inner diameter of the circular ring is greater than an outer diameter of a seal (36) on a shaft tube, and in the last distance of a toilet rotary piston(3)moving downward, the upper piston (7)below the circular ring can prevent the support and the circular ring from moving downward.

8. A water-jet control valve of the rotary toilet piston according to claim 1, characterized by comprising a rotary piston, a shaft tube (2), a cylinder (59) outside the shaft pipe, a piston (60), a spring (62) and a water inlet (63), wherein the rotary piston is a cap-shaped annular lower part of the piston, the shaft pipe is a section of a toilet water jetting internal shaft pipe with one end being sealed, a top end of the shaft pipe is provided with a section of a circular truncated cone outer wall, the cylindrical shaft pipe is below the circular truncated cone outer wall, the piston(60) comprises two inner wall structures, that is, a circular truncated cone side inner wall and a cylindrical side inner wall, the piston (60) has a cylindrical side outer wall structure, the bottom of the cylinder (59) is connected to an outer wall of the shaft pipe (2) in a sealed manner, an inner wall of the cylinder(59) and an outer wall of the piston (60) form a coordinative cylinder-piston structure, the piston can move up and down in the cylinder for a certain distance, the inner wall of the cylinder and the outer wall of the shaft pipe (2) form an inter layer of a certain width, the bottom part of the inter layer is the spring, an upper part of the spring holds against a lower part of the piston (60), when the spring(62) holds against the piston (60) and the piston is in a highest position in the inter layer, the circular truncated cone outer wall of the internal shaft pipe can closely coordinate with the circular truncated cone inner wall of the piston (60), the piston seals the water jetting hole (63) of the shaft pipe, an annular lower part of a piston cap is located right above the piston, an outer diameter of the annular lower part of the piston cap is less than an outer diameter of the piston (60), and a diameter of an inner wall of the piston cap is greater than a greatest diameter of the circular truncated cone side outer wall of the water jetting internal shaft pipe (2) surrounded by the piston(60).

9. A rotary piston, characterized by comprising a housing of a piston, and further comprising a sealing plate (65), wherein the piston may connect to the sealing plate by means of a screw or in other manners, a lower part of the piston and an upper part of the sealing plate may coincide in a sealed manner, and after the sealing plate is connected to the piston, the sealing plate becomes a part of the piston.

10. A water-jet pipe of a rotary piston, characterized by comprising a piston, wherein the piston comprises a sealing plate (65), a circle of trench (61) is formed on the bottom of the sealing plate and is in communication with a pipe (30) of the piston, and when the piston (3) and the sealing plate are pressed tightly, the trench (61) is in communication with the water-jet pipe (30) correspondingly.

Drawing