CN-122005131-A - Nozzle structure and tooth-flushing device

CN122005131ACN 122005131 ACN122005131 ACN 122005131ACN-122005131-A

Abstract

The invention discloses a nozzle structure and a tooth-flushing device, the tooth-flushing device comprises a nozzle structure, the nozzle structure is composed of a nozzle main body and a rotatable water outlet switching assembly. The nozzle body is internally provided with a water inlet channel and a water outlet. The water outlet switching assembly comprises a water outlet piece and a water distribution piece, wherein the water outlet piece is provided with a communication hole (a first waterway) and a peripheral annular cavity (a second waterway), and the water distribution piece is correspondingly provided with a main water spraying hole and a surrounding auxiliary water spraying hole. The rotary assembly is communicated with the first waterway to realize concentrated main injection, and is communicated with the second waterway to realize porous auxiliary injection after being rotated to the second position. The invention aims to improve the independent distribution of water flow in the main spray mode and the auxiliary spray mode, thereby improving the spray performance and thoroughly avoiding water flowing between modes.

Inventors

ZHOU JUN
LUO SISHENG
LI DONGBAO
ZHENG CHUANZHOU

Assignees

瑞圣特科技(深圳)有限公司

Dates

Publication Date: 20260512
Application Date: 20260324

Claims (10)

1. A nozzle arrangement, comprising: The spray nozzle comprises a nozzle main body, wherein a water inlet channel is formed in the nozzle main body, one end of the water inlet channel is a water inlet end, the other end of the water inlet channel is a water outlet end, and the water outlet end is provided with at least one water outlet; the water outlet switching assembly is rotatably connected to the nozzle main body and comprises a water outlet piece and a water distribution piece arranged on the water outlet piece, the water outlet piece is arranged at the water outlet, the water outlet piece is provided with an annular cavity and a communication hole, the annular cavity is arranged around the periphery of the communication hole, the communication hole is configured as a first water flow passage, the annular cavity is configured as a second water flow passage, the water distribution piece is provided with a main water spraying hole and a plurality of auxiliary water spraying holes, and the plurality of auxiliary water spraying holes are arranged around the main water spraying hole; The water outlet switching assembly is rotatable about an axis relative to the nozzle body such that the water outlet switching assembly has a first position and a second position; When the water outlet, the first water flow passage and the main water spraying hole are sequentially communicated in the first position, so that a main spraying mode is formed; and when the water outlet, the second water flow passage and the plurality of auxiliary water spray holes are sequentially communicated in the second position, so that an auxiliary spray mode is formed.
2. The nozzle structure according to claim 1, wherein the water outlet member has a water inlet surface and a water outlet surface which are oppositely disposed, the water inlet surface being disposed toward the water outlet, wherein a recess is formed in the water inlet surface, the recess and the communication hole are communicated to form the first water flow path, the annular cavity is formed in the water outlet surface, the water inlet end of the annular cavity extends to the water inlet surface to form the second water flow path, and the water dividing member is disposed on the water outlet surface to cover the annular cavity and the water outlet end of the communication hole.
3. The nozzle structure according to claim 2, wherein the cavity of the annular cavity is further provided with a first through hole and a second through hole, the first through hole and the second through hole are disposed opposite to each other with respect to the rotation axis of the water outlet switching assembly, the groove is disposed on the rotation axis and located between the first through hole and the second through hole in the circumferential direction, and the bottom surface of the annular cavity is configured as an inclined surface having a maximum depth on a side close to the rotation axis and gradually increasing in depth in a direction radially outward toward the first through hole and the second through hole.
4. A nozzle arrangement according to claim 3, wherein the recess is arranged to extend in a radial direction, the direction of extension being arranged to intersect the central axis of the primary water jet.
5. The nozzle structure of claim 1, further comprising a flow directing assembly comprising at least a third through hole and a fourth through hole disposed in spaced relation, the flow directing assembly being mounted at the water outlet, the third through hole and the fourth through hole both communicating with the water outlet; when the water outlet, the third through hole, the fourth through hole, the first water flow passage and the main water spraying hole are sequentially communicated in the first position, so that a main spraying mode is formed; and when the water outlet, the third through hole, the fourth through hole, the second water flow passage and the plurality of auxiliary water spray holes are sequentially communicated in the second position, so that an auxiliary spray mode is formed.
6. The nozzle arrangement of claim 5, wherein the deflector assembly comprises a deflector and an elastic seal disposed on a side of the deflector facing the outlet switching assembly; The flow guide piece is provided with a fifth through hole and a sixth through hole, the elastic sealing piece is provided with a seventh through hole and an eighth through hole, the fifth through hole and the seventh through hole are coaxially communicated to form the third through hole, and the sixth through hole and the eighth through hole are coaxially communicated to form the fourth through hole; The first water outlet, the fifth through hole and the seventh through hole are sequentially communicated to form a first diversion channel, and the first water outlet, the sixth through hole and the eighth through hole are sequentially communicated to form a second diversion channel.
7. The nozzle structure according to claim 6, further comprising an elastic component, wherein the elastic component comprises a first elastic member and a second elastic member, a first accommodating groove and a second accommodating groove are formed in a recessed mode on one side, facing the nozzle main body, of the elastic sealing member, the first accommodating groove is communicated with the first diversion channel, the second accommodating groove is communicated with the second diversion channel, the first elastic member is accommodated in the first accommodating groove, two ends of the first elastic member are respectively abutted to the inner wall of the first accommodating groove and the inner wall of the diversion member, the second elastic member is accommodated in the second accommodating groove, and two ends of the second elastic member are respectively abutted to the inner wall of the first accommodating groove and the inner wall of the diversion member.
8. The nozzle structure of claim 1, wherein the nozzle body comprises a rod body and an end cap, the water inlet channel is formed inside the rod body, and the end cap is rotatably connected with the water outlet switching assembly; The inner wall of end cover is equipped with first joint portion and second joint portion, be equipped with on the outer peripheral face of play water switching component first joint plane with the second joint plane that first joint plane set up relatively, first joint portion with first joint plane forms circumference joint cooperation, second joint portion with second joint plane forms circumference joint cooperation, so that the end cover with play water switching component is fixed relatively in the circumference, can drive when the end cover rotates play water switching component rotates.
9. The nozzle structure according to claim 8, wherein the outer wall of the rod body is provided with a stop portion, the inner wall of the end cover is provided with a limit portion, and the limit portion is provided with a first limit surface and a second limit surface which are arranged at intervals along the circumferential direction; In the first position, the first limiting surface is in contact with the stopper portion, and in the second position, the second limiting surface is in contact with the stopper portion.
10. A dental irrigator comprising a nozzle arrangement according to any one of claims 1 to 9.

Description

Nozzle structure and tooth-flushing device Technical Field The invention relates to the technical field of tooth flushers, in particular to a nozzle structure and a tooth flusher. Background The existing rotary multi-mode nozzle usually switches water flow paths by rotating a spray head, but the switching structure of the existing rotary multi-mode nozzle adopts a simple through hole alignment or single groove design, so that reliable confluence and independent diversion of double waterways are difficult to realize simultaneously. In the main spray mode, the pressure of two inlets is insufficient due to the lack of an effective converging cavity, and in the auxiliary spray mode, uneven spraying is easily caused by the serial flow of the runners. Disclosure of Invention The invention mainly aims to provide a nozzle structure, which aims to promote the combination or independent distribution of water flow in a main spraying mode and an auxiliary spraying mode, thereby not only improving the spraying performance, but also thoroughly avoiding water flowing between modes. In order to achieve the above object, the present invention provides a nozzle structure, comprising: The spray nozzle comprises a nozzle main body, wherein a water inlet channel is formed in the nozzle main body, one end of the water inlet channel is a water inlet end, the other end of the water inlet channel is a water outlet end, and the water outlet end is provided with at least one water outlet; the water outlet switching assembly is rotatably connected to the nozzle main body and comprises a water outlet piece and a water distribution piece arranged on the water outlet piece, the water outlet piece is arranged at the water outlet, the water outlet piece is provided with an annular cavity and a communication hole, the annular cavity is arranged around the periphery of the communication hole, the communication hole is configured as a first water flow passage, the annular cavity is configured as a second water flow passage, the water distribution piece is provided with a main water spraying hole and a plurality of auxiliary water spraying holes, and the plurality of auxiliary water spraying holes are arranged around the main water spraying hole; The water outlet switching assembly is rotatable about an axis relative to the nozzle body such that the water outlet switching assembly has a first position and a second position; When the water outlet, the first water flow passage and the main water spraying hole are sequentially communicated in the first position, so that a main spraying mode is formed; and when the water outlet, the second water flow passage and the plurality of auxiliary water spray holes are sequentially communicated in the second position, so that an auxiliary spray mode is formed. In an embodiment, the water outlet member is provided with a water inlet surface and a water outlet surface which are oppositely arranged, the water inlet surface is arranged towards the water outlet, a groove is concavely formed on the water inlet surface, the groove is communicated with the communication hole to form the first water flow passage, the annular cavity is concavely formed on the water outlet surface, the water inlet end of the annular cavity extends to the water inlet surface to be communicated with the water outlet to form the second water flow passage, and the water distributing member is arranged on the water outlet surface to cover the annular cavity and the water outlet end of the communication hole. In an embodiment, the cavity of the annular cavity is further provided with a first through hole and a second through hole, the first through hole and the second through hole are arranged opposite to the rotation axis of the water outlet switching assembly, the groove is arranged on the rotation axis and located between the first through hole and the second through hole in the circumferential direction, and the bottom surface of the annular cavity is configured as an inclined surface, has the maximum depth at one side close to the rotation axis, and gradually increases in depth in the direction of radially outwards facing the first through hole and the second through hole. In one embodiment, the grooves are arranged to extend in a radial direction, the extending direction of the grooves intersecting with the central axis of the main water jet. In an embodiment, the nozzle structure further comprises a flow guiding assembly, the flow guiding assembly at least comprises a third through hole and a fourth through hole which are arranged at intervals, the flow guiding assembly is installed at the water outlet, and the third through hole and the fourth through hole are communicated with the water outlet; when the water outlet, the third through hole, the fourth through hole, the first water flow passage and the main water spraying hole are sequentially communicated in the first position, so that a main spraying mode is formed; and when the