CN220955943U

CN220955943U - Tooth-flushing device water pump structure with water leakage prevention function

Info

Publication number: CN220955943U
Application number: CN202322685207.4U
Authority: CN
Inventors: 罗绪国; 罗舒敏
Original assignee: Shenzhen Ruijingchuang Industrial Co ltd
Current assignee: Shenzhen Ruijingchuang Industrial Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-14
Anticipated expiration: 2033-09-28

Abstract

The utility model discloses a tooth-flushing device water pump structure with a water leakage prevention function, which belongs to the technical field of tooth-flushing devices and comprises an outer shell, a pump body, a leakage prevention piston assembly, a driving device and a leakage prevention flexible glue cup, wherein the pump body is arranged in the outer shell and is provided with an inner cavity, the leakage prevention piston assembly is movably connected with the inner cavity, the driving device is arranged in the outer shell, the leakage prevention flexible glue cup is in sealing connection with the lower end of the pump body, the lower part of the leakage prevention flexible glue cup is provided with a connected sealing shrinkage opening, and the upper end of the driving device passes through the sealing shrinkage opening and is in transmission connection with the leakage prevention piston assembly to drive the leakage prevention piston assembly to perform periodical repeated up-down movement so as to spray water outwards from the upper end of the pump body. The utility model adopts the first waterproof silica gel ring and the second waterproof silica gel ring to prevent the inner wall and the outer wall of the inner sleeve from leaking, and the leak-proof soft rubber cup performs multi-layer leak-proof protection on the prevention collection of the inner cavity from leaking, so that the piston cannot leak to the circuit board or the motor in the process of doing the periodical repeated up-and-down movement, thereby ensuring the normal use of the water pump and prolonging the service life.

Description

Tooth-flushing device water pump structure with water leakage prevention function

Technical Field

The utility model belongs to the technical field of tooth flushers, and relates to a tooth flusher water pump structure with a water leakage prevention function.

Background

In the related art of oral cleaning, a pulse water flow impact mode is utilized to clean teeth and tooth gaps, so that the user is assisted to clean the oral cavity to a certain extent, and convenience is brought. The tooth-flushing device adopts a motor to drive an eccentric wheel to rotate so as to drive the piston to reciprocate up and down, so that the volume of a pump cavity is periodically changed, pulse water flow is sprayed out, and teeth and tooth gaps can be flushed.

In the process of using the tooth-flushing device, because the water pump of the existing tooth-flushing device is repeatedly moved, the sealing ring on the piston is easy to age and wear, and even the sealing ring is separated, so that water in the pump cavity can seep from the inner side wall and drop to the internal circuit board to be damaged and burnt out, and the use requirement is difficult to be met.

Therefore, it is necessary to design a protection device which can prevent water leakage and prolong the service life of the tooth washer under the condition of ensuring the normal and repeated movement of the piston of the water pump.

Disclosure of utility model

The utility model provides a water pump structure of a tooth-washing device with a water leakage prevention function, and aims to solve the problems that in the long-time use process of the existing water pump of the tooth-washing device, a sealing ring on a piston is easy to age, abrade and fall off, so that a circuit board is damaged or burned out due to water leakage, the use requirement of a user is difficult to meet, and the service life of the tooth-washing device is shortened.

In order to achieve the above purpose, the utility model provides a tooth-washing device water pump structure with a water leakage prevention function, which comprises an outer shell, a pump body, a leakage prevention piston assembly, a driving device and a leakage prevention flexible glue cup, wherein the pump body is arranged in the outer shell and is provided with an inner cavity, the leakage prevention piston assembly is movably connected with the inner cavity, the driving device is arranged in the outer shell, the leakage prevention flexible glue cup is in sealing connection with the lower end of the pump body, the lower part of the leakage prevention flexible glue cup is provided with a connected sealing shrinkage opening, and the upper end of the driving device passes through the sealing shrinkage opening and is in transmission connection with the leakage prevention piston assembly to drive the leakage prevention piston assembly to perform periodical repeated up-down movement so as to spray water outwards from the upper end of the pump body.

Preferably, the leakage-proof piston assembly comprises an inner sleeve, a piston, a one-way valve, a water spraying valve plate, a first waterproof silica gel ring and a second waterproof silica gel ring, wherein the inner sleeve is arranged in the inner cavity, a movable piston is arranged in the inner sleeve, the upper end of the piston is provided with the one-way valve, the lower end face of the one-way valve is provided with the water spraying valve plate, the first waterproof silica gel ring is arranged between the inner cavity and the inner sleeve, a plurality of annular grooves are formed in the side wall of the piston, and the second waterproof silica gel ring is arranged in the inner sleeve of the annular grooves.

Preferably, the driving device comprises a motor, a cone bevel gear, a disc gear, a connecting rod and a connecting shaft, wherein the motor is fixedly arranged in the outer shell, the cone bevel gear is arranged on an output shaft of the motor, the disc gear is arranged in the outer shell, two ends of the connecting shaft penetrate through the disc gear and are arranged on the inner wall of the outer shell, the disc gear is meshed with the cone bevel gear, and two ends of the connecting rod are movably connected with the piston and the coaxial eccentric wheel.

Preferably, the center of the disc gear is provided with an integrated coaxial eccentric wheel, one end of the connecting rod is provided with an oval hole which is horizontally arranged, the coaxial eccentric wheel is movably sleeved in the oval hole, and the other end of the connecting rod is movably connected with the lower part of the piston through a pin shaft.

Preferably, a control board is arranged on one side of the outer shell, a battery is arranged on the other side of the outer shell, and the control board is electrically connected with the battery and the motor.

Preferably, one side of the pump body is connected with a water inlet pipe, the other side of the pump body is connected with a water outlet pipe, the upper end of the pump body is provided with a water outlet piece, and the water outlet piece is provided with a nozzle bracket.

Preferably, the outer housing comprises a left housing and a right housing, and the left housing and the right housing are fixedly connected.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model provides a water pump structure of a tooth washer with a water leakage prevention function, which adopts a first waterproof silica gel ring and a second waterproof silica gel ring to prevent the inner wall and the outer wall of an inner sleeve from leaking, and the water leakage prevention soft gel cup performs multi-layer leakage prevention protection on the prevention collection of inner cavity leakage, so that a piston cannot leak to a circuit board or a motor in the process of doing periodical and repeated up-and-down movement, thereby ensuring the normal use of the water pump and prolonging the service life.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the internal structure of the present utility model;

FIG. 3 is a schematic illustration of the leak-proof piston assembly of the present utility model;

FIG. 4 is a schematic view of the exploded cross-sectional structure of FIG. 3;

FIG. 5 is an exploded view of FIG. 1;

Reference numerals:

1. An outer housing; 2. a pump body; 3. a leak-proof piston assembly; 4. a driving device; 5. a leak-proof soft rubber cup; 6. an inner cavity; 7. an inner sleeve; 8. a piston; 9. a one-way valve; 10. a water spraying valve plate; 11. a first waterproof silica gel ring; 12. the second waterproof silica gel ring; 13. sealing and necking; 14. an annular groove; 15. a motor; 16. cone helical gear; 17. a disk gear; 18. a connecting rod; 19. a connecting shaft; 20. a coaxial eccentric; 21. an elliptical hole; 22. a control board; 23. a battery; 24. a water inlet pipe; 25. a water outlet pipe; 26. a water outlet member; 27. a nozzle holder; 28. a left shell; 29. and a right shell.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In order to achieve the above purpose, the embodiment of the utility model provides a water pump structure of a tooth washer with a water leakage prevention function, which is shown by referring to fig. 1-5, and comprises an outer shell 1, a pump body 2 which is arranged in the outer shell 1 and is provided with an inner cavity 6, a leakage prevention piston assembly 3 which is movably connected with the inner cavity 6, a driving device 4 which is arranged in the outer shell 1, and a leakage prevention flexible glue cup 5 which is hermetically connected with the lower end of the pump body 2, wherein a connected sealing shrinkage opening 13 is arranged at the lower part of the leakage prevention flexible glue cup 5, and the upper end of the driving device 4 passes through the sealing shrinkage opening 13 to be in transmission connection with the leakage prevention piston assembly 3, so that the leakage prevention piston assembly 3 is driven to do periodical repeated up-down movement to spray water outwards from the upper end of the pump body 2.

In this embodiment, the inner cavity 6 of the pump body 2 is provided with the leak-proof piston assembly 3 and the lower end of the pump body 2 is provided with the leak-proof soft rubber cup 5, both of which are subjected to sealing treatment, water possibly seeping out from the inner cavity 6 is contained in the leak-proof soft rubber cup 5 from the outside of the pump body 2, the leak-proof soft rubber cup 5 is sleeved on the driving device 4 through the bottom sealing shrinkage 13, and cannot drip under the driving device 4, so that the double-layer leak-proof protection effect is achieved, the service life is prolonged, and the use is more safe.

The leak-proof piston 8 assembly 3 comprises an inner sleeve 7, a piston 8, a one-way valve 9, a water spraying valve plate 10, a first waterproof silica gel ring 11 and a second waterproof silica gel ring 12, wherein the inner sleeve 7 is arranged in the inner sleeve 6, a movable piston 8 is arranged in the inner sleeve 7, the one-way valve 9 is arranged at the upper end of the piston 8, the water spraying valve plate 10 is arranged on the lower end face of the one-way valve 9, when the piston 8 moves downwards, the one-way valve 9 is opened, the one-way valve 9 can flow water in the leak-proof soft rubber cup 5 back to the inner sleeve 6, the first waterproof silica gel ring 11 is arranged between the inner sleeve 7 and the inner sleeve 6, water leakage of the inner sleeve 6 is prevented, a plurality of annular grooves 14 are formed in the side wall of the piston 8, the second waterproof silica gel ring 12 is sleeved in the annular grooves 14, and the leak of the piston 8 is prevented.

The driving device 4 comprises a motor 15, a cone bevel gear 16, a disc gear 17, a connecting rod 18 and a connecting shaft 19, wherein the motor 15 is fixedly installed in the outer shell 1, the cone bevel gear 16 is arranged on an output shaft of the motor 15, the disc gear 17 is arranged in the outer shell 1, two ends of the connecting shaft 19 penetrate through the disc gear 17 and are installed on the inner wall of the outer shell 1, the disc gear 17 is meshed with the cone bevel gear 16, two ends of the connecting rod 18 are movably connected with the piston 8 and a coaxial eccentric wheel 20, an integrated coaxial eccentric wheel 20 is arranged at the center of the disc gear 17, an elliptical hole 21 horizontally arranged is formed in one end of the connecting rod 18, the coaxial eccentric wheel 20 is movably sleeved in the elliptical hole 21, and the other end of the connecting rod 18 is movably connected with the lower part of the piston 8 through a pin shaft.

In this embodiment, the motor 15 drives the bevel cone gear 16 to rotate, so as to drive the engaged and connected disc gear 17 to rotate clockwise or anticlockwise, the coaxial eccentric wheel 20 rotates in the elliptical hole 21, and the elliptical hole 21 is horizontally arranged, so that the connecting rod 18 can move up and down and does not swing left and right, and the pump body 2, the inner sleeve 7 and the piston 8 support cannot be worn due to the swing, so that water leakage is further prevented.

Wherein, one side of the shell body 1 is provided with a control board 22, the other side of the shell body 1 is provided with a battery 23, and the control board 22 is electrically connected with the battery 23 and the motor 15.

Further, a water inlet pipe 24 is connected to one side of the pump body 2, a water outlet pipe 25 is connected to the other side of the pump body 2, a water outlet piece 26 is arranged at the upper end of the pump body 2, and a nozzle bracket 27 is arranged on the water outlet piece 26.

Further, the outer housing 1 includes a left shell 28 and a right shell 29, and the left shell 28 is fixedly connected with the right shell 29.

When in use, the motor 15 is started to operate, the disc gear 17 is driven to rotate, the connecting rod 18 is driven to move up and down back and forth without swinging, and the periodical change of the volume of the inner cavity 6 of the pump body 2 is formed. When the connecting rod 18 moves downwards and the volume of the inner cavity 6 becomes larger, the pressure becomes smaller, water fills the inner cavity 6 from the water inlet pipe 24, when the connecting rod 18 moves to the lowest position, the water inlet is closed, in the process that the connecting rod 18 continues to move upwards, the piston 8 is pushed upwards, the volume of the inner cavity 6 becomes smaller, water in the inner cavity 6 is quickly pushed upwards, the water is ejected from the nozzle support 27 to teeth of an oral cavity for cleaning, a small part of water flows out of the water outlet pipe 25 to the water tank, and the motor 15 rotates to drive the connecting rod 18 to periodically move up and down, so that the use is facilitated.

The utility model provides a water pump structure of a tooth washer with a water leakage prevention function, which adopts a first waterproof silica gel ring 11 and a second waterproof silica gel ring 12 to prevent the inner wall and the outer wall of an inner sleeve 7 from leaking, and a leakage prevention soft rubber cup 5 performs multi-layer leakage prevention protection on the prevention collection of the inner cavity 6 from leaking, so that a piston 8 cannot leak onto a circuit board or a motor 15 in the process of doing periodical and repeated up-and-down movement, thereby ensuring the normal use of the water pump and prolonging the service life.

The technical principle of the present utility model has been described above in connection with specific embodiments, but is only the preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. Those skilled in the art will recognize that other embodiments of the utility model are within the scope of the utility model without undue burden.

Claims

1. The utility model provides a tooth-washing device water pump structure with leak protection water function, its characterized in that includes the shell body, installs the pump body that has the inner chamber in the shell body, with inner chamber swing joint's leak protection piston assembly, install the drive arrangement in the shell body and with pump body lower extreme sealing connection's leak protection flexible glue cup, leak protection flexible glue cup lower part is equipped with the sealed throat of disjunctor, drive arrangement's upper end passes sealed throat and leak protection piston assembly transmission and is connected, order about leak protection piston assembly is periodical repetitive up-and-down motion in order to outwards spray water from the pump body upper end.

2. The water pump structure of the tooth-washing device with the water leakage prevention function according to claim 1, wherein the water leakage prevention piston assembly comprises an inner sleeve, a piston, a one-way valve, a water spraying valve plate, a first waterproof silica gel ring and a second waterproof silica gel ring, wherein the inner sleeve is arranged in the inner cavity, a movable piston is arranged in the inner sleeve, the upper end of the piston is provided with the one-way valve, the lower end face of the one-way valve is provided with the water spraying valve plate, the first waterproof silica gel ring is arranged between the inner cavity and the inner sleeve, a plurality of annular grooves are arranged on the side wall of the piston, and the second waterproof silica gel ring is sleeved in the annular grooves.

3. The water pump structure of the tooth-flushing device with the water leakage prevention function according to claim 2, wherein the driving device comprises a motor, a cone bevel gear, a disc gear, a connecting rod and a connecting shaft, the motor is fixedly arranged in the outer shell, the cone bevel gear is arranged on an output shaft of the motor, the disc gear is arranged in the outer shell, two ends of the connecting shaft penetrate through the disc gear and are arranged on the inner wall of the outer shell, the disc gear is meshed with the cone bevel gear, and two ends of the connecting rod are movably connected with the piston and the coaxial eccentric wheel.

4. The water pump structure of the tooth-washing device with the water leakage prevention function according to claim 3, wherein an integrated coaxial eccentric wheel is arranged in the center of the disc gear, one end of the connecting rod is provided with an oval hole which is horizontally arranged, the coaxial eccentric wheel is movably sleeved in the oval hole, and the other end of the connecting rod is movably connected with the lower part of the piston through a pin shaft.

5. The water pump structure of the water pump with the water leakage preventing function according to claim 4, wherein a control board is arranged on one side of the outer shell, a battery is arranged on the other side of the outer shell, and the control board is electrically connected with the battery and the motor.

6. The water pump structure of the tooth-washing device with the water leakage prevention function according to claim 2, wherein a water inlet pipe is connected to one side of the pump body, a water outlet pipe is connected to the other side of the pump body, a water outlet piece is arranged at the upper end of the pump body, and a nozzle bracket is arranged on the water outlet piece.

7. The water pump structure of a water pump for a water-leakage preventing dental pump according to any one of claims 1 to 6, wherein the outer case comprises a left case and a right case, and the left case is fastened to the right case.