CN220869585U

CN220869585U - Tooth-flushing device water pump structure with piston abrasion prevention function

Info

Publication number: CN220869585U
Application number: CN202322686445.7U
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: 2024-04-30
Anticipated expiration: 2033-09-28

Abstract

The utility model discloses a tooth-flushing device water pump structure with a piston abrasion prevention function, which belongs to the technical field of tooth-flushing devices and comprises a left shell, a right shell, a disc gear, a connecting rod and a connecting shaft, wherein the left shell and the right shell are fixedly connected to form a cavity, the cavity is internally provided with the disc gear, two ends of the connecting shaft penetrate through the disc gear and are mounted on the inner walls of the left shell and the right shell, the center of the disc gear is provided with an integrated coaxial eccentric wheel, one end of the connecting rod is provided with a horizontally placed elliptical hole, the coaxial eccentric wheel is movably sleeved in the elliptical hole, a limiting square is formed along the outer side of the elliptical hole, and a plurality of guide blocks are arranged in two sides of the cavity. The utility model designs that the elliptical hole is sleeved on the coaxial eccentric wheel and the limiting square block is in sliding fit with the guide block, so that the connecting rod moves up and down to avoid left and right swinging, thereby avoiding abrasion and damage to the first waterproof silica gel ring and the second waterproof silica gel ring, preventing water leakage, meeting the use requirement and prolonging the service life.

Description

Tooth-flushing device water pump structure with piston abrasion 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 piston abrasion 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.

In the process of using the tooth flushing device, the water pump of the tooth flushing device is mainly utilized to do periodic repeated motion, and the repeated motion drives the connecting rod to move through the rotation of the motor driving eccentric wheel, so that the connecting rod does not only reciprocate up and down, but also has the defect of left and right swinging, the friction degree of a sealing ring of the piston and the inner wall of the pump body is increased in the process of moving the piston on the connecting rod, the sealing ring is damaged, even the sealing ring is separated, and water in the pump body can seep out from the inner side wall and drop to an internal circuit board to be damaged and burnt.

Therefore, it is necessary to improve the existing link structure to adjust the state of the link moving up and down without rocking left and right, and to improve the protection and service life of the pump structure.

Disclosure of utility model

The utility model provides a water pump structure of a tooth-flushing device with a piston abrasion prevention function, and aims to solve the problems that an existing tooth-flushing device can swing left and right in the up-and-down movement process of a connecting rod, so that a sealing ring is damaged due to excessive friction between a piston and the inner wall of a pump body, water leakage and damage to a circuit board are easy to occur, the use requirement is difficult to meet, and the service life is shortened.

In order to achieve the above purpose, the utility model provides a tooth-flushing device water pump structure with a piston abrasion prevention function, which comprises a left shell, a right shell, a disc gear, a connecting rod and a connecting shaft, wherein the left shell and the right shell are fixedly connected to form a cavity, the disc gear is arranged in the cavity, two ends of the connecting shaft penetrate through the disc gear and are arranged on the inner walls of the left shell and the right shell, an integrated coaxial eccentric wheel is arranged at the center of the disc gear, one end of the connecting rod is provided with a horizontally placed elliptical hole, the coaxial eccentric wheel is movably sleeved in the elliptical hole, a limiting square block is formed along the outer side of the elliptical hole, a plurality of guide blocks are arranged in two sides of the cavity, and two sides of the limiting square block are in clearance fit with the inner sides of the guide blocks.

Preferably, a motor is arranged below the disc gear, a cone bevel gear is arranged on an output shaft of the motor, and the disc gear is meshed with the cone bevel gear.

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

Preferably, a pump body with an inner cavity is arranged above the disc gear, a leak-proof soft rubber cup is connected with the lower end of the pump body in a sealing way, a sealing shrinkage opening is formed in the lower portion of the leak-proof soft rubber cup, an inner sleeve is arranged in the inner cavity, a movable piston is arranged in the inner sleeve, a one-way valve is arranged at the upper end of the piston, and a water spraying valve plate is arranged on the lower end face of the one-way valve.

Preferably, the upper end of the connecting rod passes through the sealing shrinkage port to be in transmission connection with the piston, so that the piston is driven to do periodical and repeated up-and-down motion to spray water outwards from the upper end of the pump body.

Preferably, a 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 a second waterproof silica gel ring is sleeved in each annular groove.

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.

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

The utility model provides a tooth-flushing device water pump structure with a piston abrasion prevention function, which is characterized in that an oval hole which is horizontally arranged is sleeved on a coaxial eccentric wheel, and a limit square block is in clearance fit with a guide block, so that a connecting rod can move up and down and can not swing left and right, abrasion damage to a first waterproof silica gel ring and a second waterproof silica gel ring is avoided, water leakage is prevented, the use requirement is met, and the service life is prolonged.

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 showing an opened state of left and right cases of the present utility model;

FIG. 2 is a schematic view of the left shell and connecting rod assembly of the present utility model;

FIG. 3 is a schematic perspective view of the present utility model;

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

FIG. 5 is a schematic cross-sectional view of the internal structure of the present utility model;

FIG. 6 is a schematic diagram of the pump body, inner sleeve, and piston of the present utility model in an exploded configuration;

reference numerals:

1. A cavity groove; 2. a pump body; 3. a limit square; 4. a guide block; 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.

To achieve the above objective, the embodiment of the present utility model provides a water pump structure of a tooth pump with piston abrasion prevention function, as shown in fig. 1 to 6, including a left shell 28, a right shell 29, a disc gear 17, a connecting rod 18 and a connecting shaft 19, where the left shell 28 and the right shell 29 are tightly connected to form a cavity 1, the disc gear 17 is disposed in the cavity 1, two ends of the connecting shaft 19 penetrate through the disc gear 17 and are mounted on inner walls of the left shell 28 and the right shell 29, an integral coaxial eccentric wheel 20 is disposed in the center of the disc gear 17, one end of the connecting rod 18 is provided with a horizontally placed elliptical hole 21, the coaxial eccentric wheel 20 is movably sleeved in the elliptical hole 21, a limit block 3 is formed along an outer side of the elliptical hole 21, a plurality of guide blocks 4 are disposed in two sides of the cavity 1, and two sides of the limit block 3 are in clearance fit with inner sides of the guide blocks 4.

In this embodiment, one end of the connecting rod 18 is provided with an elliptical hole 21, and the elliptical hole 21 is horizontally placed, which is different from the traditional structure of providing a circular hole, the horizontally placed elliptical hole 21 is sleeved on the coaxial eccentric wheel 20, when the coaxial eccentric wheel 20 rotates to the farthest position far away from the axis to be uppermost and lowermost, the connecting rod 18 moves up to the highest position and moves down to the lowest position, and the connecting rod 18 moves back and forth periodically; when the coaxial eccentric wheel 20 rotates to the furthest position far away from the axis and is leftmost and rightmost, the connecting rod 18 moves leftmost and rightmost, space is reserved for the movement of the connecting rod 18 to the left and right sides due to the horizontal design of the elliptical hole 21, and the limiting block 3 is designed to be in clearance fit with the guide block 4, so that the connecting rod 18 is not forced to swing left and right, and the periodical up-and-down back-and-forth movement of the connecting rod 18 is realized without swinging left and right, and water leakage is further prevented.

The motor 15 is arranged below the disc gear 17, a cone bevel gear 16 is arranged on an output shaft of the motor 15, and the disc gear 17 is meshed with the cone bevel gear 16.

Wherein, a control board 22 is arranged on one side of the right shell 29, a battery 23 is arranged on one side of the left shell 28, and the control board 22 is electrically connected with the battery 23 and the motor 15.

The utility model provides a leak protection flexible glue cup, including the disc gear 17, the pump body 2 that has inner chamber 6 is equipped with to disc gear 17's top, the leak protection flexible glue cup 5 that pump body 2 lower extreme leakproof connects, leak protection flexible glue cup 5 lower part is equipped with disjunctor sealed throat 13, be equipped with inner skleeve 7 in the inner chamber 6, be equipped with mobilizable piston 8 in the inner skleeve 7, piston 8 upper end is equipped with check valve 9, check valve 9 lower terminal surface is equipped with water spray valve sheet 10, and check valve 9 opens when piston 8 moves down, and check valve 9 can flow back the water in the leak protection flexible glue cup 5 inner chamber 6, the upper end of connecting rod 18 passes sealed throat 13 and piston 8 transmission connection, order to drive piston 8 is the cycle and is repeated upward and downward movement in order to outwards spray water from pump body 2 upper end, be equipped with first waterproof silica gel ring 11 between inner chamber 6 and the inner skleeve 7, the inner skleeve 6 is prevented that the inner chamber is equipped with a plurality of ring grooves 14, ring groove 14 is equipped with second waterproof silica gel ring 12, preventing piston 8 from leaking.

In this embodiment, an inner sleeve 7 and a piston 8 are disposed in an inner cavity 6 of a pump body 2, and a leakage-proof soft rubber cup 5 is disposed at the lower end of the pump body 2, both of which are subjected to sealing treatment, water possibly seeping from the inner cavity 6 is contained in the leakage-proof soft rubber cup 5 from the outside of the pump body 2, the leakage-proof soft rubber cup 5 is sleeved on a connecting rod 18 through a bottom sealing shrinkage 13, wherein the connecting rod 18 can be provided with a groove for sealing, the sealing shrinkage 13 is sleeved on the connecting rod for sealing, the double-layer leakage-proof protection effect is achieved, and the service life is prolonged.

One side of the pump body 2 is connected with a water inlet pipe 24, the other side of the pump body 2 is connected with a water outlet pipe 25, the upper end of the pump body 2 is provided with a water outlet piece 26, and the water outlet piece 26 is provided with a nozzle bracket 27.

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.

In summary, the utility model provides a water pump structure of a tooth washer with a piston abrasion prevention function, which is characterized in that a horizontally placed elliptical hole 21 is sleeved on a coaxial eccentric wheel 20, and a limit block 3 is in clearance fit with a guide block 4, so that a connecting rod 18 can move up and down without swinging left and right, abrasion damage to a first waterproof silica gel ring 11 and a second waterproof silica gel ring 12 is avoided, water leakage is prevented, the use requirement is met, and the service life is prolonged.

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-flushing device suction pump structure with prevent piston wearing and tearing function, its characterized in that includes left shell, right shell, disc gear, connecting rod and connecting axle, left side shell and right shell fastening connection form and have the chamber groove, be equipped with disc gear in the chamber groove, disc gear installs in the inner wall of left side shell and right shell is run through at the both ends of connecting axle, disc gear center is equipped with integrative coaxial eccentric wheel, the one end of connecting rod is equipped with the oval hole that the level was placed, coaxial eccentric wheel movable sleeve is established in oval hole, follows the outside in oval hole forms spacing square, all be equipped with a plurality of guide blocks in the chamber groove both sides, spacing square both sides face all with guide block medial surface clearance fit.

2. The water pump structure of the tooth washer with the piston abrasion prevention function according to claim 1, wherein a motor is arranged below the disc gear, a cone bevel gear is arranged on an output shaft of the motor, and the disc gear is meshed with the cone bevel gear.

3. The water pump structure of the dental pump with the piston abrasion prevention function according to claim 2, wherein a control board is arranged on one side of the right shell, a battery is arranged on one side of the left shell, and the control board is electrically connected with the battery and the motor.

4. The water pump structure of the tooth-cleaning device with the piston abrasion prevention function according to claim 1, wherein a pump body with an inner cavity is arranged above the disc gear, a leak-proof soft rubber cup is connected with the lower end of the pump body in a sealing mode, a connected sealing shrinkage mouth is arranged at the lower portion of the leak-proof soft rubber cup, an inner sleeve is arranged in the inner cavity, a movable piston is arranged in the inner sleeve, a one-way valve is arranged at the upper end of the piston, and a water spraying valve plate is arranged on the lower end face of the one-way valve.

5. The structure of claim 4, wherein the upper end of the connecting rod is connected with the piston in a driving way through the sealing shrinkage mouth, and drives the piston to do periodical and repeated up-and-down movement so as to spray water outwards from the upper end of the pump body.

6. The water pump structure of the tooth-cleaning device with the piston abrasion prevention function according to claim 4, wherein a 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 a second waterproof silica gel ring is sleeved in the annular grooves.

7. The water pump structure of the tooth-flushing device with the piston abrasion prevention function according to claim 4, 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.