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EP-4516407-B1 - MASSAGE NOZZLE

EP4516407B1EP 4516407 B1EP4516407 B1EP 4516407B1EP-4516407-B1

Inventors

  • LIN, XIAOFA
  • LIN, XIAOSHAN
  • CHEN, ZHIWEI
  • LIANG, Pansheng
  • DENG, Xiaoqing
  • LIU, QIQIAO

Dates

Publication Date
20260506
Application Date
20220823

Claims (15)

  1. A massage nozzle (1, 1d), comprising: a housing (2, 2d) provided with a liquid collection cavity (227, 227d), a water outlet channel (224, 224d) extending to the outside of the housing (2, 2d) from one end of the liquid collection cavity (227, 227d), and a plurality of sub-channels (220, 220d) passing through a peripheral wall of the liquid collection cavity (227, 227d), the plurality of sub-channels (220, 220d) being sequentially arranged in a circumferential direction of the peripheral wall; and an impeller (3, 3d) rotatably connected to the housing (2, 2d) and provided with a shielding surface (320, 331d); wherein the impeller (3) is driven by water flowing through the sub-channels (220) to rotate, the shielding surface (320, 331d) is capable of sequentially passing end portions of the plurality of sub-channels (220, 220d) when the impeller (3, 3d) rotates, and the shielding surface (320, 331d) is capable of shielding an end portion of a passed sub-channel (220, 220d).
  2. The massage nozzle (1, 1d) according to claim 1, wherein the housing (2, 2d) comprises: an end cover (22, 22d) comprising a cylindrical body (221, 221d), a water outlet portion (222, 222d) covering one end of the cylindrical body (221, 221d), and a convex ring (223, 223d) provided on an inner side of the water outlet portion (222, 222d), wherein an annular cavity (225, 225d) is formed between the cylindrical body (221, 221d) and the convex ring (223, 223d); a cover plate (23, 23d) covering one end of the convex ring (223, 223d) facing away from the water outlet portion (222, 222d); wherein the convex ring (223, 223d), the water outlet portion (222, 222d), and the cover plate (23, 23d) enclose the liquid collection cavity (227, 227d), the water outlet channel (224, 224d) passes through the water outlet portion (222, 222d) and is coaxial with the convex ring (223, 223d), and the sub-channels (220, 220d) are all arranged on the convex ring (223, 223d) and pass through the convex ring (223, 223d).
  3. The massage nozzle (1, 1d) according to claim 2, wherein a plurality of strip slots (226, 226d) are provided at one end of the convex ring (223, 223d) facing away from the water outlet portion (222, 222d), and the strip slots (226, 226d) extend from an inner circumferential surface of the convex ring (223, 223d) to an outer circumferential surface of the convex ring (223, 223d); the cover plate (23, 23d) covers openings of the strip slots (226, 226d), and inner surfaces of the strip slots (226, 226d) and a surface of the cover plate (23, 23d) covering the openings enclose and form the sub-channels (220, 220d).
  4. The massage nozzle (1, 1d) according to claim 2, wherein the cover plate (23, 23d) is further provided with a guide post (232, 232d), one end of the guide post (232, 232d) is connected to the cover plate (23, 23d), and the other end of the guide post (232, 232d) extends into the water outlet channel (224, 224d); the guide post (232, 232d), the convex ring (223, 223d) and the water outlet channel (224, 224d) are all coaxially provided.
  5. The massage nozzle (1, 1d) according to claim 4, wherein the guide post (232, 232d) gradually decreases in radius in a direction from the cover plate (23, 23d) to the water outlet channel (224, 224d).
  6. The massage nozzle (1) according to claim 2, wherein a plate surface of the cover plate (23) facing the convex ring (223) is provided with an annular projection (233), and a top end of the projection (233) abuts against a top end of the convex ring (223).
  7. The massage nozzle (1) according to any one of claims 1 to 6, wherein the impeller (3) is provided in the liquid collection cavity (227); the impeller (3) comprises: a connection ring (31), an outer circumferential surface of the connection ring (31) being in clearance fit with an inner wall of the liquid collection cavity (227); and a blade (32) connected to the connection ring (31) and comprising a leading end (321) and a trailing end (322) opposite to the leading end (321), the trailing end (322) being provided with a force-bearing surface (323); wherein the impeller (3) is driven to rotate by spraying water onto the force-bearing surface (323) through the sub-channels (220), and the shielding surface (320) is an outer side surface of the blade (32).
  8. The massage nozzle (1) according to claim 7, wherein the force-bearing surface (323) is provided on an outer side of the trailing end (322), and the force-bearing surface (323) is configured as a recessed arcuate surface.
  9. The massage nozzle (1) according to claim 8, wherein at least a part of the sub-channels (220) extend along a radial direction of the liquid collection cavity (227), and /or at least a part of the sub-channels (220) do not extend along a radial direction of the liquid collection cavity (227).
  10. The massage nozzle (1) according to claim 7, wherein a width of the leading end (321) is less than a width of the trailing end (322).
  11. The massage nozzle (1) according to claim 7, wherein a plurality of blades (32) are provided, and the plurality of blades (32) are evenly distributed on the connection ring (31).
  12. The massage nozzle (1) according to claim 7, wherein 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).
  13. The massage nozzle (1, 1d) according to any one of claims 2 to 6, wherein the cover plate (23, 23d) further covers one end of the cylindrical body (221, 221d) facing away from the water outlet portion (222, 222d); the cover plate (23, 23d) is provided with an acceleration hole (231, 231d) communicating with the annular cavity (225, 225d); the impeller (3d) is provided in the annular cavity (225d), and the impeller (3d) comprises a connection ring (31d) sleeved on the convex ring (223d), a blade (32d) extending outward from the connection ring (31d), and a shielding plate (33d) connected to the connection ring (31d); the shielding surface (331d) is an inner side surface of the shielding plate (33d); wherein the acceleration hole (231d) is capable of injecting water into the annular cavity (225d), and the impeller (3d) is driven to rotate by obliquely spraying water onto the blade (32d) through the acceleration hole (231d).
  14. The massage nozzle (1, 1d) according to claim 13, wherein an included angle is formed between an extension direction of the acceleration hole (231, 231d) and an axis of the connection ring (223, 223d).
  15. The massage nozzle (1, 1d) according to any one of claims 1 to 6, wherein the liquid collection cavity (227, 227d) is cylindrical.

Description

Technical Field The present disclosure relates to the field of bathroom technologies, and particularly relates to a massage nozzle. Background 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. 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. The prior art document CN113369031A discloses a water outlet device having a water outlet cavity wherein the bottom wall and side walls of the water outlet cavity are respectively provided with water outlet holes and inclined water channels. The document does not disclose an impeller having a shielding surface which is capable of sequentially passing end portions of the sub-channels. Summary 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. 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. 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 water outlet portion and is coaxial with the convex ring, and the sub-channels are all arranged on the convex ring and pass through the convex ring. In an illustrative embodiment, multiple strip slots are provided at one end of the convex ring facing away from the water outlet 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. 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. In an illustrative embodiment, the guide post gradually decreases in radius in a direction from the cover plate to the water outlet channel. 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. In an illustrative embodiment, the impeller 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. 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. 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