ROLLER HEIGHT ADJUSTING MECHANISM

Abstract

 Disclosed in the present application is a roller height adjusting mechanism, including a roller assembly, an adjusting component, and a sliding adjusting member, the sliding adjusting member is positioned on a side of the roller assembly, in which the sliding adjusting member includes a first adjusting part and a second adjusting part, the first adjusting part and the second adjusting part are configured to slide toward or against each other, both the first adjusting part and the second adjusting part are hinged to an end of the adjusting component, and an opposite end of the adjusting component is hinged to the roller assembly. The first adjusting part and/or the second adjusting part are/is slid to drive the adjusting component to be close or open, so as to adjust the distance between the roller assembly and the sliding adjusting member, thereby achieving a change in the traditional way of lifting and lowering adjustment by consistently adopting bolts. In this way, it not only improves the convenience of lifting and lowering adjustment, but also improves the bearing force in the process of lifting and lowering adjustment, and it also leads to a better appearance after the assembly of doors or windows.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of doors or windows and, particularly, to a roller height adjusting mechanism.

BACKGROUND

[0002] In view of the height adjustment of the hanging roller mechanism on the hanging rail door, the inventor improves on this prior art. A Chinese utility model with Publication No. "CN215108237U" published on December 10, 2021 discloses a hanging roller mechanism that is adjustable for lifting and lowering, which ensures the stable engagement of the gear nut and the adjusting member, so as to achieve the smooth lifting and lowering of the hanging rail door.

[0003] However, the traditional way of utilizing a bolt to adjust the lifting and lowering of the hanging roller mechanism still has the following defects, which urgently require improvement and solution:

[0004] The adjusting member is inclined and is driven by engagement of gears. As known to those specialized in the field of machinery, when adjusting the lifting and lowering of the hanging sliding mechanism, it is necessary to use a screwdriver to be inserted in the adjusting member to be screwed, so as to drive the bolt to rotate. The inclined setting of the adjusting member is inconvenient for applying a force, thereby not facilitating the adjusting operation. Also, when the gears get stuck during engagement, it causes inconvenience in the adjustment of screwing.

[0005] As the lifting and lowering force of the hanging roller mechanism is focused on the bolt, it is necessary to select the bolt with a relatively large diameter. In this way, a width of a hanging bracket is larger, which leads to an increase in the width of the guide groove of the door or window frames, thereby leading to a relatively large gap in the overall installation of the doors or windows. With the increase in the aesthetic concept of decoration in the modern society, it affects the aesthetic issues of the doors or windows.

SUMMARY

[0006] In order to overcome at least one of the defects described above in the prior art, provided in the present application is a pulley height adjustment mechanism, which is a change in the traditional way of lifting and lowering adjustment by consistently adopting a bolt. In this way, it not only improves the convenience of lifting and lowering adjustment, but also improves the bearing force in the process of lifting and lowering adjustment, and it also leads to a better appearance after the assembly of the doors or windows.

[0007] The technical solutions adopted by the present application to solve the problems are as follows.

[0008] A roller height adjusting mechanism, includes a roller assembly, an adjusting component, and a sliding adjusting member. The sliding assembly is connected to the adjusting component, the sliding adjusting member is positioned on a side of the roller assembly. The sliding adjusting member includes a first adjusting part and a second adjusting part. A relative distance between the first adjusting part and the second adjusting part is adjustable, i.e., the first adjusting part and the second adjusting part are configured to slide toward or against each other. Both the first adjusting part and the second adjusting part are hinged to adjusting component. The first adjusting part and/or the second adjusting part are/is slid to drive the adjusting component to be close or open, so as to adjust a distance between the roller assembly and the sliding adjusting member. Additionally, the roller assembly includes rollers and a sliding seat, the rollers are rotatably connected to the sliding seat. Therefore, the distance between the roller assembly and the sliding adjusting member in the roller height adjusting mechanism is adjusted by sliding the first adjusting part and the second adjusting part in the sliding adjusting member, so as to pull the adjusting component to achieve the adjustment, thereby achieving the adjustment of the height position. Additionally, the force of opening and pulling or the force of closing and pushing acts on the adjusting component of the first adjusting part and the second adjusting part, which not only achieves the way of lifting and lowering adjustment instead of the traditional consistent use of bolts, but also leads to a reduction in the diameter of the bolts connected to the hanging roller structure or cancellation of the bolts in the hanging roller structure. In this way, it is conducive to the improvement of the overall aesthetics of the hanging rail door. And it improves the problem of the concentration of the bearing force in the process of lifting and lowering, so that the structure is more solid and stable, thereby enhancing the stability of lifting and lowering adjustment of the hanging rail door.

[0009] Further, the sliding adjusting member further includes a driving rod, the driving rod is provided with a first external threaded segment, and the driving rod is threaded to the first adjusting part. Additionally, a preferred embodiment provided by the inventor is that: the second adjusting part is provided with a through-hole, the driving rod penetrates the through-hole and is rotatably connected to the second adjusting part, and then the driving rod is threaded to the first adjusting part. Therefore, the driving rod ensures that the first adjusting part and the second adjusting part slide on a same central axis. Taking account of the first adjusting part being assembled and restricted in a guide groove of a hanging rail door, when the driving rod is rotated, the first adjusting part converts the rotation of the driving rod into a linear movement of the first adjusting part. Taking account of the second adjusting part being assembled and restricted in the guide groove of the hanging rail door, when the first adjusting part performs the linear movement, it achieves that the first adjusting part and the second adjusting part slide toward or against each other.

[0010] Further, an end of the driving rod is provided with a driving part, and the driving part is provided with a hexagonal groove for hexagonal wrenches or a cruciform or straight groove for a screwdriver. The operator may screw the driving part by means of the hexagonal wrench or the screwdriver inserted into the driving part, so as to achieve a rotation of the driving rod.

[0011] Further, an opposite end of the driving rod is rotatably connected to the second adjusting part.

[0012] Further, the driving rod is further provided with a second external threaded segment, the second adjusting part and the first adjusting part are correspondingly threaded to the driving rod. Optionally, the first adjusting part and the second adjusting part are threaded to the driving rods respectively. That is, the driving rod provided with a first external threaded segment is threaded to the first adjusting part, and the driving rod provided with a second external threaded segment is threaded to the second adjusting part. The two driving rods are provided separately. When applying a driving force of rotation to the two driving rods, it is achieved to increase the efficiency of adjusting the height of the hanging rail door. Additionally, when fine-tuning the height of the hanging rail door, it is only necessary to rotate one of the drive rods to slide the first adjusting part or the second adjusting part, which is more convenient for the operation of the height adjustment of the hanging rail door.

[0013] In addition to the above solution of separating the two driving rods, a thread direction of the second external threaded segment may be opposite to that of the first external threaded segment, the second external threaded segment and the first external threaded segment may be positioned on two ends of the same driving rod, the first adjusting part is threaded to the first external threaded segment of the driving rod, and the second adjusting part is threaded to the second external threaded segment of the driving rod. When rotating the driving rod, the first adjusting part and the second adjusting part convert the rotation of the driving rod into a linear movement along a direction of the central axis of the driving rod. Due to the opposite threaded directions of the second external threaded segment and the first external threaded segment, when rotating the driving rod, the first adjusting part and the second adjusting part move toward or against each other. The movement variation between the first adjusting part and the second adjusting part is a sum of the pitch of the second external threaded segment and the pitch of the first external threaded segment when the driving rod is rotated by one revolution. Therefore, the moving distance between the roller assembly and the sliding adjusting member is increased as well, which is conducive to increasing the efficiency of the height adjustment of the hanging rail door.

[0014] Further, the driving rod is a piston rod of a pneumatic cylinder or a hydraulic cylinder or an electromagnetic cylinder, and the driving rod penetrates the second adjusting part and is fixedly connected to the first adjusting part. Therefore, the piston rod penetrates the through-hole provided on the second adjusting part, and is fixedly connected to the first adjusting part. By driving of a pneumatic cylinder or a hydraulic cylinder or an electromagnetic cylinder, the piston rod performs linear reciprocating movement, so as to change the distance between the first adjusting part and the second adjusting part. Compared to the thread adjustment mentioned above, it is achieved to automatically adjust the distance between the first adjusting part and the second adjusting part.

[0015] Further, the adjusting component includes a first movable member and a second movable member, the first movable member and the second movable member are spaced apart in a splayed shape, an end of the first movable member is hinged to the roller assembly, an opposite end of the first movable member is hinged to the first adjusting part, an end of the second movable member is hinged to the roller assembly, and an opposite end of the second movable member is hinged to the second adjusting part.

[0016] Further, the first movable member is crossed with the second movable member, an end of the first movable member is hinged to the roller assembly, an opposite end of the first movable member is hinged to the second adjusting part, an end of the second movable member is hinged to an opposite end of the roller assembly, and an opposite end of the second movable member is hinged to the first adjusting part.

[0017] Further, the adjusting component further includes a fixing member, both an end of the first movable member and an end of the second movable member are hinged to an end of the fixing member, an opposite end of the first movable member is hinged to the first adjusting part, an opposite end of the second movable member is hinged to the second adjusting part, and an opposite end of the fixing member is fixedly connected to the roller assembly.

[0018] In summary, the roller height adjusting mechanism provided in the present application provides the technical effects as follows:

[0019] By the cooperation of the adjusting component, the first adjusting part and the second adjusting part, under the action of the first adjusting part and the second adjusting part sliding toward and against each other, the distance between the roller assembly and the sliding adjusting member is adjusted, so that the height of the hanging rail door is adjusted as the distance is changed. Therefore, it achieves the way of lifting and lowering adjustment instead of the traditional consistent use of bolts, and avoids the large diameter due to the centralized force applied to the bolts, which results in unaesthetic problem due to the large gap in the assembly of the whole hanging rail door. Also, by separating the force applied on the first adjusting part and the second adjusting part, the problem of centralized force applied to the bolts is also skillfully solved, and the force applied in the process of lifting and lowering adjustment is improved, thereby contributing to improving the convenience of lifting and lowering adjustment.

[0020] The present application provides a solution of the driving rod, so as to ensure and drive the first adjusting part and the second adjusting part to slide toward or against each other, thereby achieving the adjustment of the distance between the roller assembly and the sliding adjusting member. Therefore, the driving rod is provided parallel to the movement direction of the roller assembly, that is, parallel to a horizontal direction of the hanging rail door, which avoids the inconvenience of applying forces in an inclined direction as in conventional solutions, so as to, on the other hand, improve the convenience of the roller height adjusting mechanism in lifting and lowering adjustment.

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 

Fig. 1 is a first schematic structural diagram of embodiment 1 of the present application;

Fig. 2 is a second schematic structural diagram of embodiment 1 of the present application;

Fig. 3 is a first schematic semi-sectional diagram of embodiment 1 of the present application;

Fig. 4 is a second schematic semi-sectional diagram of embodiment 1 of the present application;

Fig. 5 is a third schematic semi-sectional diagram of embodiment 2 of the present application;

Fig. 6 is a fourth schematic semi-sectional diagram of embodiment 4 of the present application;

Fig. 7 is a fifth schematic semi-sectional diagram of embodiment 5 of the present application.

[0022] Labels: 1 roller assembly; 11 roller; 12 sliding seat; 2 adjusting component; 21 first movable member; 22 second movable member; 23 fixing member; 24 hinge member; 3 sliding adjusting member; 31 first adjusting part; 32 second adjusting part; 33 driving rod; 34 first external threaded segment; 35 second external threaded segment; 36 driving part.

DETAILED DESCRIPTION

[0023] For a better understanding and implementation, the technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the attached drawings of the present application.

[0024] In the description of the present application, it is to be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and other orientation or position relationships are based on the orientation or position relationships shown in the attached drawings. It is only intended to facilitate description of the present application and simplify description, but not to indicate or imply that the referred device or element has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as a limitation of the present application.

[0025] Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs. The terms used herein in the specification of the present application are used only to describe specific embodiments and are not intended as a limitation of the application.

Embodiment 1

[0026] Fig. 1 shows a first schematic structural diagram, Fig. 2 shows a second schematic structural diagram, Fig. 3 shows a first schematic semi-sectional diagram, and Fig. 4 shows a second schematic semi-sectional diagram. Figs. 1 and 4 both illustrate the roller height adjusting mechanism of the present invention in a lowest position, and Figs. 2 and 3 both illustrate the roller height adjusting mechanism of the present invention in a highest position. Referring to Figs. 1-4 for details, disclosed in the present disclosure is a roller height adjusting mechanism, including a roller assembly 1, an adjusting component 2, and a sliding adjusting member 3, in which the sliding assembly 1 is connected to the adjusting component 2, the sliding adjusting member 3 is positioned on a side of the roller assembly 1, the sliding adjusting member 3 includes a first adjusting part 31 and a second adjusting part 32, a relative distance between the first adjusting part 31 and the second adjusting part 32 is adjustable, i.e., the first adjusting part 31 and the second adjusting part 32 are configured to slide toward or against each other, and both the first adjusting part 31 and the second adjusting part 32 are hinged to adjusting component 2. The first adjusting part 31 and/or the second adjusting part 32 are/is slid to drive the adjusting component 2 to be close or open, so as to adjust a distance between the roller assembly 1 and the sliding adjusting member 3.

[0027] In the present embodiment, the sliding adjusting member 3 is preferably positioned directly above the roller assembly 1, so as to ensure that the roller assembly 1 is connected to the middle of the sliding adjusting member 3 to achieve the optimal force applied, and when changing the distance between the roller assembly 1 and the sliding adjusting member 3, it achieves the lifting and lowering adjustment. Also, a sliding direction of the sliding assembly 1 is preferably parallel to a sliding adjusting direction of the sliding adjusting member 3, that is, the sliding direction of the first adjusting part 31 and the second adjusting part 32 toward or against each other is parallel to the sliding direction of the roller assembly 1. Therefore, when the first adjusting part 31 and the second adjusting part 32 positioned on a side of the roller assembly 1 are sliding, the adjusting component 2 hinged between the roller assembly 1 and the first adjusting part 31 and the second adjusting part 32 has a certain degree of rigidity, i.e., a length of the adjusting component 2 is fixed, so that the distance between the roller assembly 1 and the sliding adjusting member 3 is changed with the sliding adjustments of the first adjusting part 31 and/or the second adjusting part 32. That is, when the first adjusting part 31 and the second adjusting part 32 move against each other, it causes the adjusting component 2 to produce a tensioning and pulling force, so that the distance between the roller assembly 1 and the sliding adjusting member 3 is reduced, so as to achieve the upward adjustment of the roller height adjusting mechanism. When the first adjusting part 31 and the second adjusting part 32 move toward each other, it causes the adjusting component 2 to produce a pressing and pushing force, so that the distance between the roller assembly 1 and the sliding adjusting member 3 is increased, so as to achieve the downward adjustment of the roller height adjusting mechanism.

[0028] In summary, the distance between the roller assembly 1 and the sliding adjusting member 3 in the roller height adjusting mechanism is adjusted by sliding the first adjusting part 31 and the second adjusting part 32 in the sliding adjusting member 3, so as to pull the adjusting component 2 to achieve the adjustment, thereby achieving the adjustment of the height position. Additionally, the force of opening and pulling or the force of closing and pushing acts on the adjusting component 2 connected to the first adjusting part 31 and the second adjusting part 32, which not only achieves the way of lifting and lowering adjustment instead of the traditional consistent use of bolts, but also leads to a reduction in the diameter of the bolts connected to the hanging roller structure or cancellation of the bolts in the hanging roller structure. In this way, it is conducive to the improvement of the overall aesthetics of the hanging rail door. It improves the problem of the concentration of the bearing force in the process of lifting and lowering, so that the structure is more solid and stable structure, thereby enhancing the stability of lifting and lowering adjustment of the hanging rail door.

[0029] Further, in order to achieve the relative sliding between the first adjusting part 31 and the second adjusting part 32, referring to Figs. 1-4 for details, the sliding adjusting member 3 further includes a driving rod 33. The driving rod 33 is provided with a first external threaded segment 34, the first adjusting part 31 is provided with a first threaded hole adapted to the first external threaded segment 34, and the driving rod 33 is threaded to the first adjusting part 31.

[0030] Regarding the connection relationship between the driving rod 33 and the second adjusting part 32, the inventor provides two solutions. Referring to Figs. 1-4 for details, an opposite end of the driving rod 33 is rotatably connected to the second adjusting part 32, or an opposite end of the driving rod 33 is not connected to the second adjusting part 32. The details are as follows.

[0031] As the optimal solution, as shown in Figs. 3-4, the second adjusting part 32 is provided with a through-hole adapted to a diameter of the driving rod 33. Admittedly, a diameter of the through-hole of the second adjusting part 32 is slightly larger than the diameter of the driving rod 33 within tolerances. The driving rod 33 penetrates and is rotatably connected to the second adjusting part 32, and is then threaded to the first adjusting part 31. During assembly, an end of the driving rod 33 provided with the first external threaded segment 34 penetrates the through-hole of the second adjusting part 32 and is threaded to the first threaded hole of the first adjusting part 31. The driving rod 33 ensures that the first adjusting part 31 and the second adjusting part 32 slide on a same central axis. Taking account of the first adjusting part 31 being assembled and restricted in a guide groove of a hanging rail door, when the driving rod 33 is rotated, the first adjusting part 31 converts the rotation of the driving rod 33 into a linear movement of the first adjusting part 31. Taking account of the second adjusting part 32 being assembled and restricted in the guide groove of the hanging rail door, when the first adjusting part 31 performs the linear movement, it achieves that the first adjusting part 31 and the second adjusting part 32 slide toward or against each other.

[0032] In addition to the preferable manner, the inventor further provides an optional solution as follows. The driving rod 33 is positioned on a side of the first adjusting part 31, the first external threaded segment 34 of the driving rod 33 is threaded to the first adjusting part 31, and the second adjusting part 32 is assembled and fixed in the guide groove of the hanging rail door, which may also achieve the adjustable relative distance between the first adjusting part 31 and the second adjusting part 32.

[0033] For achieving the rotation of the driving rod 33, referring to Fig. 3 for details, an end of the driving rod 33 is provided with a driving part 36, and the driving part 36 is provided with a hexagonal groove for a hexagonal wrench or a cruciform or straight groove for a screwdriver. The operator may screw the driving part 36 by means of the hexagonal wrench or the screwdriver inserted into the driving part 36, so as to achieve the rotation of the driving rod 33. The sliding direction of the first adjusting part 31 and the second adjusting part 32 toward or against each other is parallel to the sliding direction of the roller assembly 1, that is, the driving rod 33 is provided in horizontal, so that it is easier for the operator to apply a force thereto when screwing with a hexagonal wrench or screwdriver.

[0034] Further, referring to Figs. 1-4 for details, the adjusting component 2 includes a first movable member 21 and a second movable member 22, the first movable member 21 and the second movable member 22 are spaced apart in a splayed shape, an end of the first movable member 21 is hinged to the roller assembly 1, an opposite end of the first movable member 21 is hinged to the first adjusting part 31, an end of the second movable member 22 is hinged to the roller assembly 1, and an opposite end of the second movable member 22 is hinged to the second adjusting part 32. The roller assembly 1 further includes rollers 11 and a sliding seat 12, and the rollers 11 are rotatably connected to the sliding seat 12. Specifically, in order to ensure that the first movable member 21 and the second movable member 22 are more stably hinged on the sliding seat 12, in the present embodiment, the adjusting component 2 further includes a hinge member 24. The hinge member 24 is fixedly mounted on the sliding seat 12, an end of the first movable member 21 and an end of the second movable member 22 are hinged to two ends of the hinge member 24 respectively, an opposite end of the first movable member 21 is correspondingly hinged to the first adjusting part 31, and an opposite end of the second movable member 22 is correspondingly hinged to the second adjusting part 32, so as to achieve that the first movable member 21 and the second movable member 22 are provided separately, achieve the detachable connection between the first adjusting part 31 and the roller assembly 1 by means of the first movable member 21, and achieve the detachable connection between the second adjusting part 32 and the roller assembly 1 by means of the second movable member 22.

Embodiment 2

[0035] The roller height adjusting mechanism provided in embodiment 1 mentioned above achieves the adjustment of the distance between the roller assembly 1 and the sliding adjusting member 3 by means of the rotation of the driving rod 33, in which the moving distance of the first adjusting part 31 is a pitch of the first external threaded segment 34 when the driving rod 33 is rotated one revolution, which allows the moving distance between the roller assembly 1 and the sliding adjusting member 3 to be relatively small, achieving a highly accurate adjustment of the distance between the roller assembly 1 and the sliding adjusting member 3. When the hanging rail door is assembled and there is a large assembly error in the height, the fine adjustment allows the height of the door to be adjusted less efficiently, and the frequent rotation also causes the operator's hand to be easily sore.

[0036] In view of the problem raised above, the inventor provides a solution as follows. Referring to Fig. 5, on the basis of the driving rod 33 provided in embodiment 1, the driving rod 33 is further provided with a second external threaded segment 35, the second adjusting part 32 is provided with a second threaded hole adapted to the second external threaded segment 35, both the second adjusting part 32 and the first adjusting part 31 are correspondingly threaded to the driving rod 33, and other configurations are consistent with those in embodiment 1. Specifically, the hole provided on the second adjusting part 32 is the second threaded hole, that is, an inner sidewall of the through-hole provided on the second adjusting part 32 is provided with an internal thread adapted to the second external threaded segment 35.

[0037] Optionally, the first adjusting part 31 and the second adjusting part 32 are threaded to the driving rods 33 respectively. That is, the driving rod 33 provided with a first external threaded segment 34 is threaded to the first adjusting part 31, and the driving rod 33 provided with a second external threaded segment 35 is threaded to the second adjusting part 32. The two driving rods 33 are provided separately. When applying a driving force of rotation to the two driving rods 33, it is achieved to increase the efficiency of adjusting the height of the hanging rail door. Additionally, when fine-tuning the height of the hanging rail door, it is only necessary to rotate one of the drive rods 33 to slide the first adjusting part 31 or the second adjusting part 32, which is more convenient for the operation of the height adjustment of the hanging rail door.

[0038] Further, a most preferred embodiment provided by the inventors is that, referring to Fig. 5 for details, a thread direction of the second external threaded segment 35 is opposite to that of the first external threaded segment 34. In such an arrangement, the second external threaded segment 35 and the first external threaded segment 34 are positioned on two ends of the same driving rod 33. During assembly, the first adjusting part 31 is threaded to the first external threaded segment 34 of the driving rod 33, and the second adjusting part 32 is threaded to the second external threaded segment 35 of the driving rod 33. When rotating the driving rod 33, the first adjusting part 31 and the second adjusting part 32 convert the rotation of the driving rod 33 into a linear movement along a direction of the central axis of the driving rod 33. Due to the opposite threaded directions of the second external threaded segment 35 and the first external threaded segment 34, when rotating the driving rod 33, the first adjusting part 31 and the second adjusting part 32 move toward or against each other. The movement variation between the first adjusting part 31 and the second adjusting part 32 is a sum of the pitch of the second external threaded segment 35 and the pitch of the first external threaded segment 34 when the driving rod 33 is rotated by one revolution. Therefore, the moving distance between the roller assembly 1 and the sliding adjusting member 3 is increased as well, which is conducive to increasing the efficiency of the height adjustment of the hanging rail door.

Embodiment 3

[0039] The present embodiment differs from embodiment 1 and embodiment 2 only in that the driving rod 33 is a piston rod of a pneumatic cylinder or a hydraulic cylinder or an electromagnetic cylinder, and the driving rod 33 penetrates the second adjusting part 32 and is fixedly connected to the first adjusting part 31. According to the technical means in the field of machinery, the piston rod is fixedly mounted to the first adjusting part 31 by means of a bolt connection, and any other means by which the first adjusting part 31 may be fixedly mounted to the piston rod may be used as a replacement for the bolt connection means. In such an arrangement, the piston rod penetrates the through-hole provided on the second adjusting part 32, and is fixedly connected to the first adjusting part 31. By driving of the pneumatic cylinder or the hydraulic cylinder or the electromagnetic cylinder, the piston rod performs linear reciprocating movement, so as to change the distance between the first adjusting part 31 and the second adjusting part 32. Compared to the thread adjustment in embodiment 1 and embodiment 2, it is achieved to automatically adjust the distance between the first adjusting part and the second adjusting part.

Embodiment 4

[0040] On the basis of the solution provided in embodiment 1 or embodiment 2 or embodiment 3, as shown in conjunction with Fig. 6, the inventor improves the structure of the adjusting component 2 in the following way. The first movable member 21 is crossed with the second movable member 22, an end of the first movable member 21 is hinged to the roller assembly 1, an opposite end of the first movable member 21 is hinged to the second adjusting part 32, an end of the second movable member 22 is hinged to an opposite end of the roller assembly 1, and an opposite end of the second movable member 22 is hinged to the first adjusting part 31.

[0041] Specifically, an end of the first movable member 21 is hinged to the second adjusting part 32, an opposite end of the first movable member 21 is hinged to an end of the hinge member 24 proximal to the first adjusting part 31, an end of the second movable member 22 is hinged to the first adjusting part 31, and an opposite end of the second movable member 22 is hinged to an end of the hinge member 24 proximal to the second adjusting part 32, and the first movable member 21 is configured to be crossed with the second movable member 22. When the first adjusting part 31 or the second adjusting part 32 slides toward or against each other along the direction of the driving rod 33, the roller assembly 1 may still be pulled or pushed by the first movable member 21 and the second movable member 22, thereby achieving the adjustment of the distance between the first adjusting part 31 and the second adjusting part 32.

[0042] In addition to the crosswise pattern described above, an end of the first movable member 21 and an end of the second movable member 22 are correspondingly hinged to the second adjusting part 32 and the first adjusting part 31 respectively. An opposite end of the first movable member 21 and an opposite end of the second movable member 22 are hinged to the hinge member 24, and the first movable member 21 and the second movable member 22 are hinged to the same position of the hinge member 24. Preferably, the position where the first movable member 21 and the second movable member 22 hinged to the hinge member 24 is preferably the middle of the hinge member 24.

Embodiment 5

[0043] Differing from the solution described in Embodiment 4, the present embodiment, on the basis of the solution provided in Embodiment 1 or Embodiment 2 or Embodiment 3, as shown in conjunction with Fig. 7, the inventor improves the structure of the adjusting component 2 in the following way. The adjusting component 2 further includes a fixing member 23, both an end of the first movable member 21 and an end of the second movable member 22 are hinged to an end of the fixing member 23, an opposite end of the first movable member 21 is hinged to the first adjusting part 31, an opposite end of the second movable member 22 is hinged to the second adjusting part 32, and an opposite end of the fixing member 23 is fixedly connected to the roller assembly 1. Specifically, the fixing member 23 is fixedly connected to the hinge member 24. Thereby lengths of the first movable member 21 and the second movable member 22 that are subjected to the force are reduced, which further leads to an increase of the affordable load capacity of the first movable member 21 and the second movable member 22.

[0044] The technical means disclosed in the solution of the present application are not limited to those disclosed in the embodiments mentioned above but also include technical solutions consisting of any combination of the above technical features. It should be noted that for those skilled in the art, a plurality of improvements and modifications may be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A roller height adjusting mechanism, comprising a roller assembly (1), an adjusting component (2), and a sliding adjusting member (3),
wherein the roller assembly (1) is connected to the adjusting component (2), the sliding adjusting member (3) comprises a first adjusting part (31) and a second adjusting part (32), a relative distance between the first adjusting part (31) and the second adjusting part (32) is adjustable, and both the first adjusting part (31) and the second adjusting part (32) are hinged to the adjusting component (2).

2. The roller height adjusting mechanism according to claim 1, wherein

the sliding adjusting member (3) further comprises a driving rod (33),

an end of the driving rod (33) is provided with a first external threaded segment (34), and the driving rod (33) is threaded to the first adjusting part (31).

3. The roller height adjusting mechanism according to claim 2, wherein an end of the driving rod (33) is provided with a driving part (36).

4. The roller height adjusting mechanism according to claim 2, wherein an opposite end of the driving rod (33) is rotatably connected to the second adjusting part (32).

5. The roller height adjusting mechanism according to claim 3, wherein the driving rod (33) is further provided with a second external threaded segment (35), the second adjusting part (32) and the first adjusting part (31) are correspondingly threaded to the driving rod (33).

6. The roller height adjusting mechanism according to claim 5, wherein a thread direction of the second external threaded segment (35) is opposite to that of the first external threaded segment (34).

7. The roller height adjusting mechanism according to claim 2, wherein the driving rod (33) is a piston rod of a pneumatic cylinder or a hydraulic cylinder or an electromagnetic cylinder, and the driving rod (33) penetrates the second adjusting part (32) and is fixedly connected to the first adjusting part (31).

8. The roller height adjusting mechanism according to any one of claims 1-7, wherein the adjusting component (2) comprises a first movable member (21) and a second movable member (22), the first movable member (21) and the second movable member (22) are spaced apart in a splayed shape, an end of the first movable member (21) is hinged to the roller assembly (1), an opposite end of the first movable member (21) is hinged to the first adjusting part (31), an end of the second movable member (22) is hinged to the roller assembly (1), and an opposite end of the second movable member (22) is hinged to the second adjusting part (32).

9. The roller height adjusting mechanism according to claim 8, wherein the first movable member (21) is crossed with the second movable member (22), an end of the first movable member (21) is hinged to the roller assembly (1), an opposite end of the first movable member (21) is hinged to the second adjusting part (32), an end of the second movable member (22) is hinged to an opposite end of the roller assembly (1), and an opposite end of the second movable member (22) is hinged to the first adjusting part (31).

10. The roller height adjusting mechanism according to claim 8, wherein the adjusting component (2) further comprises a fixing member (23), both an end of the first movable member (21) and an end of the second movable member (22) are hinged to an end of the fixing member (23), an opposite end of the first movable member (21) is hinged to the first adjusting part (31), an opposite end of the second movable member (22) is hinged to the second adjusting part (32), and an opposite end of the fixing member (23) is fixedly connected to the roller assembly (1).

Drawing