MASSAGE NOZZLE

Abstract

 A massage nozzle, comprising: a housing provided with a liquid collection cavity, a water outlet channel extending to the outside of the housing from one end of the liquid collection cavity and a plurality of sub-channels passing through the peripheral wall of the liquid collection cavity, the plurality of sub-channels being sequentially arranged in the circumferential direction of the peripheral wall; and an impeller rotatably connected to the housing and provided with a shielding surface, wherein the impeller is driven by water flowing through the sub-channels to rotate, the shielding surface can sequentially pass by end portions of the plurality of sub-channels when the impeller rotates, and the shielding surface can shield the end portions of the passing sub-channels. The massage nozzle is small in size and simple in structure, and is more flexible when being arranged on a bathtub. The water flow sprayed by the massage nozzle provides a pulse feeling in both a direction parallel to the water outlet channel and a direction perpendicular to the water outlet channel, so that double massage feelings of pressing and kneading are achieved.

Description

Cross-reference

[0001] The present patent application claims priority to Chinese patent application filed on June 22, 2022, application number 202210715512.0, and titled "Massage Nozzle", the disclosure of which is incorporated herein by reference in its entirety.

Technical Field

[0002] The present disclosure relates to the field of bathroom technologies, and particularly relates to a massage nozzle.

Background

[0003] Some bathroom equipment in the related art has a massage function, such as bathtub, shower head, or foot tub. The bathroom equipment is usually provided with multiple water spray holes, and water is sprayed onto the human body through the multiple water spray holes to provide massage for a person.

[0004] A water supply device for supplying water to multiple water spray holes is huge in volume, which is not conducive to a layout of water spray holes, and the water supply device can only provide a pulse water flow with a single touch feeling.

Summary

[0005] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the protection scope of the claims.

[0006] In order to solve the above technical problems, an embodiment of the present application provides a massage nozzle, which includes: a housing, the housing provided with a liquid collection cavity, a water outlet channel extending to the outside of the housing from one end of the liquid collection cavity, and multiple sub-channels passing through a peripheral wall of the liquid collection cavity, the multiple sub-channels being sequentially arranged in a circumferential direction of the peripheral wall; and an impeller, the impeller rotatably connected to the housing and provided with a shielding surface. The impeller is driven by water flowing through the sub-channels to rotate, the shielding surface is capable of sequentially passing end portions of the multiple sub-channels when the impeller rotates, and the shielding surface is capable of shielding an end portion of a passed sub-channel.

[0007] In an illustrative embodiment, the housing includes: an end cover, the end cover including a cylindrical body, a water outlet portion covering one end of the cylindrical body, and a convex ring provided on an inner side of the water outlet portion, and an annular cavity being formed between the cylindrical body and the convex ring; and a cover plate, the cover plate covering one end of the convex ring facing away from the water outlet portion. The convex ring, the water outlet portion, and the cover plate enclose the liquid collection cavity, the water outlet channel passes through the cover plate and is coaxial with the convex ring, and the sub-channels are all arranged on the convex ring and pass through the convex ring.

[0008] In an illustrative embodiment, multiple strip slots are provided at one end of the convex ring facing away from the end portion, and the strip slots extend from an inner circumferential surface of the convex ring to an outer circumferential surface of the convex ring. The cover plate covers openings of the strip slots, and inner surfaces of the strip slots and a surface of the cover plate covering the openings enclose and form the sub-channels.

[0009] In an illustrative embodiment, the cover plate is further provided with a guide post, one end of the guide post is connected to the cover plate, and the other end extends into the water outlet channel. The guide post, the convex ring, and the water outlet channel are all coaxially provided.

[0010] In an illustrative embodiment, the guide post gradually decreases in radius in a direction from the cover plate to the water outlet channel.

[0011] In an illustrative embodiment, a plate surface of the cover plate facing the convex ring is provided with an annular projection, and a top end of the projection abuts against a top end of the convex ring.

[0012] In an illustrative embodiment, the blade is provided in the liquid collection cavity. The impeller includes: a connection ring, an outer circumferential surface of the connection ring in clearance fit with an inner wall of the liquid collection cavity; and a blade, the blade being connected to the connection ring and including a leading end and a trailing end opposite to the leading end, the trailing end being provided with a force-bearing surface. The impeller is driven to rotate by spraying water onto the force-bearing surface through a sub-channel, and the shielding surface is an outer side surface of the blade.

[0013] In an illustrative embodiment, the force-bearing surface is provided on an outer side of the trailing end, and the force-bearing surface is configured as a recessed arcuate surface.

[0014] In an illustrative embodiment, at least a part of the sub-channels extend along a radial direction of the liquid collection cavity, and /or at least a part of the sub-channels do not extend along a radial direction of the liquid collection cavity.

[0015] In an illustrative embodiment, a width of the leading end is less than a width of the trailing end.

[0016] In an illustrative embodiment, multiple blades are provided, and the multiple blades are evenly distributed on the connection ring.

[0017] In an illustrative embodiment, a distance between the blade and an axis of the connection ring is less than a radius of the water outlet channel.

[0018] In an illustrative embodiment, the cover plate further covers one end of the cylindrical body facing away from the water outlet portion. The cover plate is provided with an acceleration hole communicating with the annular cavity. The impeller is provided in the annular cavity, and the impeller includes a connection ring sleeved on the convex ring, a blade extending outward from the connection ring, and a shielding plate connected to the connection ring. The shielding surface is an inner side surface of the shielding plate. The acceleration hole is capable of injecting water into the annular cavity, and the impeller is driven to rotate by obliquely spraying water onto the blade through the acceleration hole.

[0019] In an illustrative embodiment, an included angle is formed between an extension direction of the acceleration hole and an axis of the connection ring.

[0020] When the massage nozzle is used, multiple sub-channels inject water into the liquid collection cavity simultaneously, and some of the sub-channels are blocked by the shielding surface and cannot inject water into the liquid collection cavity. When the water flows through the impeller, the impeller is driven to rotate. When the impeller rotates, the impeller drives the water flow to rotate, and the rotating water flow is sprayed out of the housing through the water outlet channel. At the same time, when the impeller rotates, the shielding surface of the impeller also passes through the inward end portions of the multiple sub-channels sequentially, the shielding surface will block the end portion of a sub-channel through which it passes so that the sub-channel cannot continue to inject water into the liquid collection cavity. In this way, when the shielding surface shields and leaves the end portions of the sub-channels alternately, the water flow will intermittently impact the liquid collection cavity, and finally, the water flow output from the water outlet channel has a pulse feeling in both a direction parallel to the water outlet channel and a direction perpendicular to the water outlet channel, thereby forming a double massage feeling of pressing and kneading.

[0021] The massage nozzle is small in volume and simple in structure, and is more flexible when being arranged on a bathtub.

[0022] Other features and advantages of embodiments of the present application will be set forth in the description which follows, and in part will become obvious from the description, or may be learned by practice of the present application. Other advantages of embodiments of the present application can be realized and obtained by solutions described in the description and the drawings.

[0023] Other aspects will become apparent after reading and understanding the drawings and detailed description.

Brief Description of Drawings

[0024] The drawings are used to provide an understanding of technical solutions of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solutions of the present application, and do not constitute a limitation on the technical solutions of the present application.

FIG. 1 is a schematic three-dimensional view of a massage nozzle according to a first embodiment of the present application.

FIG. 2 is a schematic exploded view of a massage nozzle according to a first embodiment of the present application.

FIG. 3 is a schematic exploded view of a massage nozzle according to a first embodiment of the present application.

FIG. 4 is a schematic front view of a massage nozzle according to a first embodiment of the present application.

FIG. 5 is a schematic sectional view taken along a plane A-A in FIG. 4.

FIG. 6 is a schematic diagram of a water flow direction of a massage nozzle according to a first embodiment of the present application.

FIG. 7 is a schematic top view of a massage nozzle according to a first embodiment of the present application.

FIG. 8 is a schematic sectional view taken along a plane B-B in FIG. 7.

FIG. 9 is a schematic three-dimensional view of a cover plate and an end cover according to a first embodiment of the present application.

FIG. 10 is a schematic top view of an impeller according to a first embodiment of the present application.

FIG. 11 is a schematic sectional view of an impeller and a convex ring according to a first embodiment of the present application.

FIG. 12 is a schematic top view of an impeller according to an embodiment of the present application.

FIG. 13 is a schematic sectional view of an impeller and a convex ring according to an embodiment of the present application.

FIG. 14 is a schematic top view of an impeller according to an embodiment of the present application.

FIG. 15 is a schematic sectional view of an impeller and a convex ring according to an embodiment of the present application.

FIG. 16 is a schematic front view of a massage nozzle according to a second embodiment of the present application.

FIG. 17 is a schematic sectional view taken along a plane C-C in FIG. 16.

FIG. 18 is a schematic exploded view of a massage nozzle according to a second embodiment of the present application.

FIG. 19 is a schematic exploded view of a massage nozzle according to a second embodiment of the present application.

FIG. 20 is a schematic bottom view of a massage nozzle according to a second embodiment of the present application.

FIG. 21 is a schematic sectional view taken along a plane D-D in FIG. 20.

FIG. 22 is a schematic three-dimensional view of a cover plate according to a second embodiment of the present application.

Detailed Description

Embodiment 1

[0025] As shown in FIGS. 1-3, FIGS. 1-3 show a massage nozzle 1 according to a first embodiment. The massage nozzle 1 includes a housing 2 and an impeller 3. The impeller 3 is provided in the housing 2.

[0026] The housing 2 includes an outer cylinder 21, an end cover 22, and a cover plate 23. The outer cylinder 21 is configured as a tubular structure. The end cover 22 covers one end of the outer cylinder 21 and is connected to the outer cylinder 21. One end of the outer cylinder 21 facing away from the end cover 22 is configured to be connected to a water supply pipeline, and the water supply pipeline injects water into the outer cylinder 21.

[0027] The end cover 22 includes a cylindrical body 221, a water outlet portion 222, and a convex ring 223. The cylindrical body 221 is configured as a cylindrical structure. The water outlet portion 222 covers one end of the cylindrical body 221. An external thread is provided on the outer peripheral surface of the cylindrical body 221, an internal thread matching the external thread is provided on the outer cylinder 21, and the cylindrical body 221 is screwed into the outer cylinder 21 to form a threaded connection between the cylindrical body 221 and the outer cylinder 21.

[0028] The water outlet portion 222 is configured as an annular shape. The water outlet portion 222 closes an end portion of the cylindrical body 221. The water outlet portion 222 is provided with a water outlet channel 224, and the water outlet channel 224 penetrates the water outlet portion 222. The water outlet channel 224 is a straight channel, and the cross-section of the water outlet channel 224 may be circular. The water outlet channel 224 is provided coaxially with the cylindrical body 221.

[0029] As shown in FIG. 2, the convex ring 223 is configured as an annular shape. The convex ring 223 is provided on the plate surface of the water outlet portion 222 facing the inside of the cylindrical body 221. The convex ring 223 surrounds the water outlet channel 224. The convex ring 223 is provided coaxially with the water outlet channel 224. The inner cavity of the convex ring 223 is in communication with the water outlet channel 224. Multiple strip slots 226 are provided at one end of the convex ring 223 facing away from the water outlet portion 222. The strip slots 226 are formed by inwardly recessing an end face of the convex ring 223. The strip slots 226 extend from an inner circumferential surface of the convex ring 223 to an outer circumferential surface of the convex ring 223. The multiple strip slots 226 are sequentially arranged in a circumferential direction of the convex ring 223. An outer diameter of the convex ring 223 is less than an inner diameter of the cylindrical body 221, and an annular cavity 225 is formed between the convex ring 223 and the cylindrical body 221.

[0030] The cover plate 23 is configured in a disk shape. The cover plate 23 covers one end of the cylindrical body 221 facing away from the water outlet portion 222. The cover plate 23 also covers one end of the annular cavity 225 facing away from the water outlet portion 222. The cover plate 23 also abuts against one end of the convex ring 223 facing away from the water outlet portion 222. The convex ring 223, the water outlet portion 222, and the cover plate 23 enclose a liquid collection cavity 227. The cover plate 23 also covers openings of the strip slots 226 of the convex ring 223, and an inner surface of each strip slot 226 and a surface of the cover plate 23 facing the strip slot 226 enclose and form a sub-channel 220. Two ends of the sub-channel 220 communicate the liquid collection cavity 227 with the annular cavity 225. The sub-channel 220 may be a straight channel. An acceleration hole 231 is provided in the cover plate 23. The acceleration hole 231 is provided at an edge of the cover plate 23. Multiple acceleration holes 231 may be provided, and the multiple acceleration holes 231 are uniformly distributed in a circumferential direction of the cover plate 23. The acceleration hole 231 communicates with the annular cavity 225.

[0031] As shown in FIG. 5, the impeller 3 is provided in the liquid collection cavity 227. The impeller 3 includes a connection ring 31 and a blade 32. The connection ring 31 is configured as an annular shape. The connection ring 31 is provided coaxially with the convex ring 223, and an outer circumferential surface of the connection ring 31 is in clearance fit with an inner circumferential surface of the convex ring 223, that is, the outer circumferential surface of the connection ring 31 is in clearance fit with an inner wall of the liquid collection cavity 227. The impeller 3 can rotate about its own axis in the liquid collection cavity 227. The connection ring 31 abuts against the water outlet portion 222, and the sub-channels 220 on the convex ring 223 are located on a side of the connection ring 31 facing away from the water outlet portion 222, and the connection ring 31 does not block the sub-channels 220.

[0032] As shown in FIG. 2, the blade 32 is configured as a generally wedge-shaped structure. The blade 32 is connected to the connection ring 31. The blade 32 includes a leading end 321 and a trailing end 322 opposite to the leading end 321. The leading end 321 of the blade 32 faces a rotational direction of the impeller 3, and the trailing end 322 of the blade 32 faces a direction opposite to the rotational direction of the impeller 3. A force-bearing surface 323 is provided on the trailing end 322 of the blade 32, and the force-bearing surface 323 is inclined outward. As shown in FIG. 8, when water is injected into the liquid collection cavity 227 through the sub-channels 220, water can impact the force-bearing surface 323 of the blade 32, so that the blade 32 is subjected to a forward thrust, thereby driving the impeller 3 to rotate.

[0033] Along an axis of the impeller 3, a thickness of the blade 32 is greater than a thickness of the connection ring 31. The blade 32 extends from the connection ring 31 toward a side of the sub-channel 220, and the blade 32 can shield an inward end of the sub-channel 220. A side surface of the blade 32 facing outward is the shielding surface 320, that is, the side surface of the blade 32 close to an inner circumferential surface of the convex ring 223 is the shielding surface 320. The shielding surface 320 is configured as a circular arcuate surface coaxial with the convex ring 223, and the blade 32 shields an inward end of the sub-channel 220 by the shielding surface 320.

[0034] As shown in FIGS. 6 and 8, after the water supply pipeline injects water into the outer cylinder 21, the water in the outer cylinder 21 enters the annular cavity 225 through the acceleration hole 231 in the cover plate 23. A flow velocity of the water is increased due to a sudden decrease of the sectional area of the flow channel in a process of the water flowing from the outer cylinder 21 to the acceleration hole 231, so that a velocity of the water flow into the annular cavity 225 is relatively high. The water in the annular cavity 225 is injected into the liquid collection cavity 227 through multiple sub-channels 220, at least a part of the sub-channels 220 can spray water onto the force-bearing surface 323 of the blade 32 to drive the impeller 3 to rotate, and at the same time, a part of the sub-channels 220 are blocked by the shielding surface 320 of the blade 32 and cannot inject water into the liquid collection cavity 227. When the impeller 3 rotates, the impeller 3 drives the water in the liquid collection cavity 227 to rotate, and the rotating water flow is sprayed out of the housing 2 through the water outlet channel 224. At the same time, when the impeller 3 rotates, the shielding surface 320 of the impeller 3 also passes through the inward end portions of the multiple sub-channels 220 sequentially, the shielding surface 320 will block the end portion of the sub-channel 220 through which it passes so that the sub-channel 220 cannot continue to inject water into the liquid collection cavity 227. In this way, when the shielding surface 320 shields and leaves the end portions of the sub-channels 220 alternately, the water flow will intermittently impact the liquid collection cavity 227, and finally, the water flow output from the water outlet channel 224 has a pulse feeling in both a direction parallel to the water outlet channel 224 and a direction perpendicular to the water outlet channel 224, thereby forming a double massage feeling of pressing and kneading.

[0035] In an illustrative embodiment, a guide post 232 is also provided on the cover plate 23. One end of the guide post 232 is connected to a central portion of the cover plate 23, and the guide post 232 is located on a side of the cover plate 23 close to the water outlet channel 224. The other end of the guide post 232 extends into the water outlet channel 224. A diameter of a portion of the guide post 232 extending into the water outlet channel 224 is less than an inner diameter of the water outlet channel 224. An annular gap is formed between the guide post 232 and the water outlet channel 224.

[0036] Multiple beams of water flows respectively injected into the liquid collection cavity 227 through the multiple sub-channels 220 can move in a direction toward the water outlet channel 224 under a guidance of the guide post 232. At the same time, the water flows also can rotate around the guide post 232 and flow into the water outlet channel 224 due to the rotation of the water flows driven by the impeller 3.

[0037] In an illustrative embodiment, a radius of an end of the guide post 232 connected to the cover plate 23 is greater than a radius of an end of the guide post 232 extending into the water outlet channel 224. The radius of the guide post 232 gradually decreases in a direction from the cover plate 23 to the water outlet channel 224.

[0038] In this way, an obtuse angle is formed between the outer peripheral surface of the guide post 232 and the water flow sprayed from the water outlet channel 224, and a velocity loss when the water flow collides with the guide post 232 is small.

[0039] In an illustrative embodiment, the cover plate 23 is further provided with a projection 233, and the projection 233 is annular. The projection 233 is provided on the plate surface of the cover plate 23 facing the convex ring 223. A top end of the projection 233 facing away from the cover plate 23 abuts against a top end of the convex ring 223 facing away from the water outlet portion 222. Since the projection 233 abuts against the convex ring 223, a seal between the cover plate 23 and the convex ring 223 can be strengthened.

[0040] In an illustrative embodiment, as shown in FIGS. 2 and 8, the force-bearing surface 323 of the blade 32 is provided on the outer side of the trailing end 322 of the blade 32. The force-bearing surface 323 is configured as a recessed arcuate surface.

[0041] When a part of the sub-channels 220 extends in a radial direction of the convex ring 223, the part of the sub-channels 220 sprays water onto the arcuate force-bearing surface 323 to cause the blade 32 to be subjected to a forward component of force, thereby pushing the blade 32 to rotate.

[0042] The other part of the sub-channels 220 does not extend in a radial direction of the convex ring 223. The part of the sub-channels 220 can also spray water onto the arcuate force-bearing surface 323, to cause the blade 32 to be subjected to a forward component of force, which is greater than the forward component of force exerted by water sprayed through the radially extending sub-channels 220, and the blade 32 can rotate faster after being subjected to the thrust.

[0043] In particular, when the force-bearing surface 323 with the recessed arcuate structure is impacted by the water flow, an impact force of the water flow can be utilized more efficiently, and the impact force can be converted into a forward component of force as much as possible, so that the impeller 3 can rotate faster.

[0044] In an illustrative embodiment, a width of the leading end 321 of the blade 32 is less than a width of the trailing end 322 of the blade 32. In this way, the blade 32 is subjected to less resistance from water when rotating, and the impeller 3 can rotate faster.

[0045] In an illustrative embodiment, a distance between the blade 32 and an axis of the connection ring 31 is less than a radius of the water outlet channel 224.

[0046] In this way, when the massage nozzle 1 is used, the user may see the rotation of the blade 32 from the water outlet channel 224, so that the user can more intuitively inspect whether the massage nozzle 1 is working or not, and the experience is improved.

[0047] In an illustrative embodiment, as shown in FIGS. 10 and 11, multiple blades 32 are provided, for example, two blades 32 are provided. The multiple blades 32 are evenly distributed on the connection ring 31. Each blade 32 may simultaneously block multiple sub-channels 220.

[0048] In this way, when the impeller 3 is impacted by the water flow, the force on the impeller 3 is more uniform, and at the same time, the rotation of the impeller 3 is more balanced.

[0049] In some embodiments, as shown in FIGS. 12 and 13, only one blade 32a may also be provided.

[0050] A quantity of blades 32a may be flexibly set as desired.

[0051] In some embodiments, as shown in FIGS. 14 and 15, multiple blades 32b may be provided, and each blade 32b can block only one sub-channel 220 at the same time.

[0052] A quantity of sub-channels 220 that can be blocked by each blade 32b may be flexibly set as desired.

Embodiment 2

[0053] As shown in FIGS. 16-21, FIGS. 16-21 show the massage nozzle 1d in the second embodiment. The massage nozzle 1d includes a housing 2d and an impeller 3d. The impeller 3d is provided in the housing 2d.

[0054] As shown in FIGS. 18 and 19, the housing 2d includes an outer cylinder 21d, an end cover 22d, and a cover plate 23d. The outer cylinder 21d is configured as a tubular structure. The end cover 22d covers one end of the outer cylinder 21d and is connected to the outer cylinder 21d. One end of the outer cylinder 21d facing away from the end cover 22d is configured to be connected to a water supply pipeline, and the water supply pipeline injects water into the outer cylinder 21d.

[0055] As shown in FIGS. 17 and 18, the end cover 22d includes a cylindrical body 221d, a water outlet portion 222d, and a convex ring 223d. The cylindrical body 221d is configured as a cylindrical structure. The water outlet portion 222d covers one end of the cylindrical body 221d. The outer peripheral surface of the cylindrical body 221d is provided with an external thread, the outer cylinder 21d is provided with an internal thread matching the external thread. The cylindrical body 221d is screwed into the outer cylinder 21d to form a threaded connection between the cylindrical body 221d and the outer cylinder 21d.

[0056] As shown in FIG. 17, the water outlet portion 222d is configured as an annular shape. The water outlet portion 222d closes the end portion of the cylindrical body 221d. The water outlet portion 222d is provided with a water outlet channel 224d, and the water outlet channel 224d penetrates the water outlet portion 222d. The water outlet channel 224d is a straight channel, and a cross-section of the water outlet channel 224d may be circular. The water outlet channel 224d is provided coaxially with the cylindrical body 221d.

[0057] The convex ring 223d is configured as an annular shape. The convex ring 223d is provided on the plate surface of the water outlet portion 222d facing an inside of the cylindrical body 221d. The convex ring 223d surrounds the water outlet channel 224d. The convex ring 223d is provided coaxially with the water outlet channel 224d. An inner cavity of the convex ring 223d is communicated with the water outlet channel 224d. Multiple strip slots 226d are provided at one end of the convex ring 223d facing away from the water outlet portion 222d. The strip slots 226d are formed by inwardly recessing an end face of the convex ring 223d. The strip slots 226d extend from an inner circumferential surface of the convex ring 223d to an outer circumferential surface of the convex ring 223d. The multiple strip slots 226d are sequentially arranged in a circumferential direction of the convex ring 223d. An outer diameter of the convex ring 223d is less than an inner diameter of the cylindrical body 221d, and an annular cavity 225d is formed between the convex ring 223d and the cylindrical body 221d.

[0058] As shown in FIGS. 17, 19, and 22, the cover plate 23d is configured in a disk shape. The cover plate 23d covers one end of the cylindrical body 221d facing away from the water outlet portion 222d. The cover plate 23d covers one end of the annular cavity 225d facing away from the water outlet portion 222d. The cover plate 23d also abuts against one end of the convex ring 223d facing away from the water outlet portion 222d. The convex ring 223d, the water outlet portion 222d, and the cover plate 23d enclose the liquid collection cavity 227d. The cover plate 23d also covers openings of the strip slots 226d of the convex ring 223d, and an inner surface of each strip slot 226d and a surface of the cover plate 23d facing the strip slot 226d enclose and form a sub-channel 220d. Two ends of the sub-channel 220d communicate the liquid collection cavity 227d with the annular cavity 225d. The sub-channel 220d may be a straight channel. An acceleration hole 231d is provided in the cover plate 23d. The acceleration hole 231d is provided at an edge of the cover plate 23d. Multiple acceleration holes 231d may be provided, and the multiple acceleration holes 231d are uniformly distributed in a circumferential direction of the cover plate 23d. The acceleration hole 231d communicates with the annular cavity 225d.

[0059] The impeller 3d is provided in the annular cavity 225d. The impeller 3d includes a connection ring 31d, a blade 32d, and a shielding plate 33d. The connection ring 31d is configured as an annular shape. The connection ring 31d is sleeved on the convex ring 223d. An inner circumferential surface of the connection ring 31d is in clearance fit with an outer circumferential surface of the convex ring 223d. The connection ring 31 is rotatable about the convex ring 223d.

[0060] Multiple blades 32d are provided, and each of the multiple blades 32d protrudes outward from the connection ring 31d. The blades 32d may be involute shaped, cycloid shaped, or straight strip shaped blades 32d. The acceleration hole 231d in the cover plate 23d is configured as an inclined hole, and an included angle is formed between an extension direction of the acceleration hole 231d and an axis of the connection ring 31d. When water is injected into the annular cavity 225d through the acceleration hole 231d, the water flow is obliquely injected onto the blades 32d, thereby pushing the impeller 3d to rotate.

[0061] The shielding plate 33d is connected to the connection ring 31d. The shielding plate 33d is configured as an arcuate shaped plate. An inner surface of the shielding plate 33d is a shielding surface 331d, which is an arcuate surface. The shielding surface 331d faces the convex ring 223d and is in clearance fit with the outer circumferential surface of the convex ring 223d. The shielding surface 331d can shield the outward end portions of a part of the sub-channels 220d.

[0062] After the water supply pipeline injects water into the outer cylinder 21d, the water in the outer cylinder 21d enters the annular cavity 225d through the acceleration hole 231d in the cover plate 23d, and the acceleration hole 231d can accelerate the water flow so that a speed of the water flow into the annular cavity 225d is relatively high. The water flow is sprayed onto the blade 32d to drive the impeller 3d to rotate. When the impeller 3d rotates, the impeller 3d drives the water in the annular cavity 225d to rotate, and the rotating water flow is injected into the liquid collection cavity 227d through the sub-channel 220d, and then sprayed out of the housing 2d through the water outlet channel 224d.

[0063] As shown in FIGS. 18 and 21, water in the annular cavity 225d is injected into the liquid collection cavity 227d through multiple sub-channels 220d, and at least a part of the sub-channels 220d can spray water onto a force-bearing surface 323d of the blade 32d to drive the impeller 3d to rotate, while a part of the sub-channels 220d is blocked by the shielding surface 331d of the blade 32d so that water cannot be injected into the liquid collection cavity 227d. The shielding surface 331d of the impeller 3d also passes through the outward end portions of the multiple sub-channels 220d sequentially when rotating, and the shielding surface 331dd blocks the end portion of the sub-channel 220d through which it passes so that the sub-channel 220d cannot continue to inject water into the liquid collection cavity 227d. In this way, the shielding surface 331d causes the water flow to intermittently impact the liquid collection cavity 227d by shielding and leaving the end portion of the sub-channel 220d, and finally the water flow output from the water outlet channel 224d has a pulse feeling in both a direction parallel to the water outlet channel 224d and a direction perpendicular to the water outlet channel 224d, thereby forming a double massage feeling of pressing and kneading.

[0064] In an illustrative embodiment, as shown in FIGS. 19 and 21, the cover plate 23d is further provided with a guide post 232d. One end of the guide post 232d is connected to a central portion of the cover plate 23d, and the guide post 232d is located on a side of the cover plate 23d close to the water outlet channel 224d. The other end of the guide post 232d extends into the water outlet channel 224d. A diameter of a portion of the guide post 232d extending into the water outlet channel 224d is less than an inner diameter of the water outlet channel 224d. An annular gap is formed between the guide post 232d and the water outlet channel 224d.

[0065] Multiple beams of water flows respectively injected into the liquid collection cavity 227d through the multiple sub-channels 220d can move in a direction toward the water outlet channel 224d under a guidance of the guide post 232d. At the same time, the water flows also can rotate around the guide post 232d and flow into the water outlet channel 224d due to the rotation of the water flows driven by the impeller 3d.

[0066] The present application describes multiple embodiments, but this description is exemplary and not limiting, and it will be obvious to those of ordinary skills in the art that more embodiments and implementations may be included within the scope of the embodiments described by the present application. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may substitute for, any other feature or element of any other embodiment.

[0067] The present application includes and contemplates combinations with features and elements known to those of ordinary skills in the art. The disclosed embodiments, features, and elements of the present application may also be combined with any conventional features or elements to form a unique inventive solution as defined by the claims. Any feature or element of any embodiment may also be combined with feature(s) or element(s) from other inventive solution to form another unique inventive solution as defined by the claims. Accordingly, it should be understood that any of the features shown and/or discussed in the present application may be implemented alone or in any suitable combination. Thus, the embodiments are not subjected to limitations other than those made in accordance with the appended claims and their equivalent substitutions. In addition, various modifications and changes may be made within the protection scope of the appended claims.

[0068] Furthermore, when describing representative embodiments, the specification may have presented a method and/or process as a particular sequence of steps. However, to the extent that the method or process does not depend on the specific order of steps described herein, the method or process should not be limited to the specific order of steps described. As will be understood by those of ordinary skill in the art, other order of steps is also possible. Accordingly, a particular order of steps set forth in the specification should not be construed as limitations on the claims. Furthermore, the claims for the method and/or process should not be limited to the steps which are performed in the written order. Those skilled in the art can readily understand that these orders can be changed and the changed orders still remain within the spirit and scope of the embodiments of the present application.

Claims

1. A massage nozzle, comprising:

a housing provided with a liquid collection cavity, a water outlet channel extending to the outside of the housing from one end of the liquid collection cavity, and a plurality of sub-channels passing through a peripheral wall of the liquid collection cavity, the plurality of sub-channels being sequentially arranged in a circumferential direction of the peripheral wall; and

an impeller rotatably connected to the housing and provided with a shielding surface;

wherein the impeller is driven by water flowing through the sub-channels to rotate, the shielding surface is capable of sequentially passing end portions of the plurality of sub-channels when the impeller rotates, and the shielding surface is capable of shielding an end portion of a passed sub-channel.

2. The massage nozzle according to claim 1, wherein the housing comprises:

an end cover comprising a cylindrical body, a water outlet portion covering one end of the cylindrical body, and a convex ring provided on an inner side of the water outlet portion, wherein an annular cavity is formed between the cylindrical body and the convex ring;

a cover plate covering one end of the convex ring facing away from the water outlet portion;

wherein the convex ring, the water outlet portion, and the cover plate enclose the liquid collection cavity, the water outlet channel passes through the cover plate and is coaxial with the convex ring, and the sub-channels are all arranged on the convex ring and pass through the convex ring.

3. The massage nozzle according to claim 2, wherein a plurality of strip slots are provided at one end of the convex ring facing away from the end portion, and the strip slots extend from an inner circumferential surface of the convex ring to an outer circumferential surface of the convex ring;
the cover plate covers openings of the strip slots, and inner surfaces of the strip slots and a surface of the cover plate covering the openings enclose and form the sub-channels.

4. The massage nozzle according to claim 2, wherein the cover plate is further provided with a guide post, one end of the guide post is connected to the cover plate, and the other end of the guide post extends into the water outlet channel;
the guide post, the convex ring and the water outlet channel are all coaxially provided.

5. The massage nozzle according to claim 4, wherein the guide post gradually decreases in radius in a direction from the cover plate to the water outlet channel.

6. The massage nozzle according to claim 2, wherein a plate surface of the cover plate facing the convex ring is provided with an annular projection, and a top end of the projection abuts against a top end of the convex ring.

7. The massage nozzle according to any one of claims 1 to 6, wherein the impeller is provided in the liquid collection cavity;

the impeller comprises:

a connection ring, an outer circumferential surface of the connection ring being in clearance fit with an inner wall of the liquid collection cavity; and

a blade connected to the connection ring and comprising a leading end and a trailing end opposite to the leading end, the trailing end being provided with a force-bearing surface;

wherein the impeller is driven to rotate by spraying water onto the force-bearing surface through the sub-channels, and the shielding surface is an outer side surface of the blade.

8. The massage nozzle according to claim 7, wherein the force-bearing surface is provided on an outer side of the trailing end, and the force-bearing surface is configured as a recessed arcuate surface.

9. The massage nozzle according to claim 8, wherein at least a part of the sub-channels extend along a radial direction of the liquid collection cavity, and /or
at least a part of the sub-channels do not extend along a radial direction of the liquid collection cavity.

10. The massage nozzle according to claim 7, wherein a width of the leading end is less than a width of the trailing end.

11. The massage nozzle according to claim 7, wherein a plurality of blades are provided, and the plurality of blades are evenly distributed on the connection ring.

12. The massage nozzle according to claim 7, wherein a distance between the blade and an axis of the connection ring is less than a radius of the water outlet channel.

13. The massage nozzle according to any one of claims 2 to 6, wherein the cover plate further covers one end of the cylindrical body facing away from the water outlet portion;

the cover plate is provided with an acceleration hole communicating with the annular cavity;

the impeller is provided in the annular cavity, and the impeller comprises a connection ring sleeved on the convex ring, a blade extending outward from the connection ring, and a shielding plate connected to the connection ring;

the shielding surface is an inner side surface of the shielding plate;

wherein the acceleration hole is capable of injecting water into the annular cavity, and the impeller is driven to rotate by obliquely spraying water onto the blade through the acceleration hole.

14. The massage nozzle according to claim 13, wherein an included angle is formed between an extension direction of the acceleration hole and an axis of the connection ring.

15. The massage nozzle according to any one of claims 1 to 6, wherein the liquid collection cavity is cylindrical.

Drawing