CN215606445U

CN215606445U - Tooth washing device with convenient structure of dismouting

Info

Publication number: CN215606445U
Application number: CN202120853638.5U
Authority: CN
Inventors: 吴永盛
Original assignee: Shenzhen Nianshengxing Technology Co ltd
Current assignee: Shenzhen Nianshengxing Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-01-25
Anticipated expiration: 2031-04-23

Abstract

The utility model relates to a tooth washing device with a convenient and fast disassembly and assembly structure. The actuating device is communicated with the spray head device through the locking device. The sprayer device comprises a connecting rod and a sprayer, the sprayer is located on the outer side of the shell, and two ends of the connecting rod are respectively connected with the sprayer and the mounting seat of the locking device. A plurality of limiting rods are respectively arranged on two sides of the connecting rod, one end of each limiting rod is rotatably connected with the mounting seat, and the other end of each limiting rod is tightly attached to the connecting rod and used for clamping the connecting rod. The both ends of first spring are connected with the one end of the stopper of two different sides respectively, and first spring is in compression state, and the restoring effort of first spring makes the stopper press from both sides tight connecting rod. The one end of button is located the outside of shell, and its other end and stopper contact press the button to the inside direction of shell and can promote the stopper and keep away from the connecting rod, and light just can extract convenient to use from locking device with the connecting rod.

Description

Tooth washing device with convenient structure of dismouting

Technical Field

The utility model relates to the field of tooth washing equipment, in particular to a tooth washing device with a structure convenient to assemble and disassemble.

Background

The cleaning function of the tooth washing device is mainly based on the self impact force of the water flow, and the water flow is combined to spray and impact in a proper pulse form to achieve the cleaning effect. The existing nozzle of the tooth washing device is usually arranged in a spray hole at the top of the tooth washing device, so that the nozzle is convenient to store, and when the tooth washing device is not used, a user usually detaches the nozzle from the spray hole at the top of the tooth washing device and puts the nozzle into a storage cavity in the tooth washing device; the nozzle is removed from the storage chamber and loaded into the orifice when needed for use. Traditional water toothpick uses the damping mode to fix in the nozzle, the dismantlement of the nozzle of not being convenient for when damping force is big, and often dismouting still easily causes the part wearing and tearing, and damping force exists unstable, nozzle not hard up again for a short time, leads to water toothpick to use more troublesome.

It is desirable to provide a dental prophylaxis device that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a tooth washing device with a convenient and fast disassembly and assembly structure. The actuating device is communicated with the spray head device through the locking device, and the actuating device is arranged in the shell and used for providing high-pressure pulse liquid flow. The sprayer device comprises a connecting rod and a sprayer, the sprayer is located on the outer side of the shell, and two ends of the connecting rod are respectively connected with the sprayer and the mounting seat of the locking device. A plurality of limiting rods are respectively arranged on two sides of the connecting rod, one end of each limiting rod is rotatably connected with the mounting seat, and the other end of each limiting rod is tightly attached to the connecting rod and used for clamping the connecting rod. The both ends of first spring are connected with the one end of the stopper of two different sides respectively, and first spring is in compression state, and the restoring effort of first spring makes the stopper press from both sides tight connecting rod. The one end of button is located the outside of shell, and its other end and stopper contact press the button to the inside direction of shell and can promote the stopper and keep away from the connecting rod, and light just can extract the connecting rod from locking device, and convenient to use has solved and has adopted the fixed nozzle of damping mode to lead to the more troublesome problem of tooth cleaning device use among the prior art.

In order to solve the above problems, the present invention comprises: a tooth washing device with a convenient structure for disassembly and assembly comprises:

a housing;

the execution device: a liquid flow disposed within the housing for providing a high pressure pulse;

a nozzle device: the spray head is positioned on the outer side of the shell, and the other end of the connecting rod is inserted into one end of the spray head; and the number of the first and second groups,

locking device: the spray head comprises a button, an installation seat, a first spring and a limiting block, wherein one side of the installation seat is connected with one end of the execution device, the installation seat is provided with an inner hole, and one end, far away from the spray head, of the connecting rod penetrates through the inner hole; the limiting blocks are arranged on two sides of the connecting rod, one end of each limiting block is rotatably connected with the mounting seat, and the other end of each limiting block is tightly attached to the connecting rod; two ends of the first spring are respectively connected with one ends of the limiting blocks at two different sides, the first spring is in a compressed state, and the return acting force of the first spring is used for enabling the limiting blocks to clamp the connecting rod; the one end of button is located the outside of shell, the other end of button is located on the mount pad and with the one end contact of stopper, the button is used for promoting the stopper is kept away from the connecting rod.

In the tooth washing device with the convenient and fast disassembly and assembly structure, the locking device further comprises a limiting sleeve, and the limiting sleeve is arranged on the mounting seat and sleeved on the outer side of the connecting rod; the limiting sleeve is provided with a limiting groove. The limiting block clamps tightly one side of connecting rod is provided with the fixture block and keeps away the position groove, the fixture block is worn to establish the spacing groove with the connecting rod is hugged closely, the fixture block is used for improving fastening effect. The button with the one end that the stopper contacted is located keep away the position inslot, be favorable to the button promotes the stopper rotates. The limiting groove is beneficial to limiting the rotating range of the limiting block and the depth of the button pressed into the shell, the protection effect can be achieved, and the stability of the structure is improved. One side of the button, which is far away from the connecting rod, is provided with a convex block, and the convex block is provided with an inclined plane for extrusion guiding. The protruding block is favorable for the button to push the limiting block to relieve the fastening effect.

Further, the locking device further comprises a second spring; and two ends of the second spring are respectively connected with the button and the limiting sleeve. The second spring is beneficial to the button to return to the initial position, and the use is more convenient.

Furthermore, one side of the fixture block, which is far away from the mounting seat, is provided with a guide groove for guiding the insertion of the connecting rod, so that the mounting is more convenient and faster, and the effect of protecting the connecting rod can be achieved.

Optionally, the mounting seat is provided with a sliding groove along the moving direction of the button, and one end of the button contacting with the limiting block is located in the sliding groove. The sliding groove fixes the moving track of the button, so that the button cannot touch the connecting rod in the moving process.

In the tooth washing device with the structure convenient to assemble and disassemble, the executing device comprises a fixing frame, a battery base, a driving motor, bevel gear teeth, an eccentric wheel, a linkage shaft and a moving piston. The battery base is in threaded connection with one end, far away from the sprayer, of the shell, and the battery base is in telecommunication connection with the driving motor. The driving motor is arranged on the fixing frame, and an output shaft of the driving motor is meshed with the bevel gear teeth. The eccentric wheel is rotatably arranged on the bevel gear, one end of the linkage shaft is fixedly connected with the eccentric wheel, the other end of the linkage shaft is connected with one end of the moving piston, and the linkage shaft is used for driving the moving piston to do reciprocating motion along the axial direction of the fixing frame. The other end of the moving piston is communicated with the connecting rod. The structure is compact, and the pressure of high-pressure pulse is provided through the reciprocating motion of the linkage shaft and the moving piston.

Further, the moving piston is made of rubber; the moving piston is close to the inner part of one end of the linkage shaft and is sealed, and the other end of the moving piston is arranged in a corrugated pipe shape, so that the effects of the moving piston on compressing space and high-voltage pulse are improved.

Further, the execution device also comprises a conversion joint, a water storage device and a water guide pipe; the adapter is provided with a water inlet and a water outlet. The adapter is hollow, one end of the adapter is connected with the moving piston, the other end of the adapter is provided with a water outlet, and the water outlet is communicated with the connecting rod. The water inlet is positioned on the side edge of the adapter, the water inlet is connected with one end of the water guide pipe, and the other end of the water guide pipe is positioned in the water storage device. The water storage device is arranged on one side of the fixing frame far away from the driving motor. Compact structure and small occupied volume.

Furthermore, the executing device also comprises a first one-way valve plate and a second one-way valve plate; the surfaces of the first check valve plate and the second check valve plate are provided with arc-shaped through grooves. The first check valve block is arranged at the water inlet, the second check valve block is arranged at the water outlet, the first check valve block, the moving piston and the peripheral wall of the conversion joint, which is provided with the water inlet, are encircled to form a first check valve, and the second check valve block, the moving piston and the end part of the conversion joint, which is provided with the water outlet, are encircled to form a second check valve. When the linkage shaft moves downwards, the second one-way valve plate is blocked, the first one-way valve plate is opened, and liquid is sucked from a water inlet hole at the first one-way valve plate; when the linkage shaft moves upwards, the first one-way valve plate is closed, the second one-way valve plate is opened, and liquid sucked into the conversion joint when the linkage shaft moves downwards can be squeezed out of the water outlet hole in the second one-way valve plate. The universal driving shaft moves up and down at a high speed, and liquid can be sprayed continuously in a high-frequency pulse mode, so that the effect of high-voltage pulse is improved.

Furthermore, the inside symmetry of shell is provided with the draw-in groove, the both ends of mount are located in the draw-in groove. After all components of the executing device are uniformly arranged on the fixing frame outside, two ends of the fixing frame are arranged in the clamping grooves, the executing device is sent into the shell by pushing the fixing frame, and the executing device is convenient and quick to install and disassemble.

Compared with the prior art, the tooth washing device with the structure convenient to assemble and disassemble has the beneficial effects that: the utility model relates to a tooth washing device with a convenient and fast disassembly and assembly structure. The actuating device is communicated with the spray head device through the locking device, and the actuating device is arranged in the shell and used for providing high-pressure pulse liquid flow. The sprayer device comprises a connecting rod and a sprayer, the sprayer is located on the outer side of the shell, and two ends of the connecting rod are respectively connected with the sprayer and the mounting seat of the locking device. A plurality of limiting rods are respectively arranged on two sides of the connecting rod, one end of each limiting rod is rotatably connected with the mounting seat, and the other end of each limiting rod is tightly attached to the connecting rod and used for clamping the connecting rod. The both ends of first spring are connected with the one end of the stopper of two different sides respectively, and first spring is in compression state, and the restoring effort of first spring makes the stopper press from both sides tight connecting rod. The one end of button is located the outside of shell, and its other end and stopper contact press the button to the inside direction of shell and can promote the stopper and keep away from the connecting rod, and light just can extract the connecting rod from locking device, and convenient to use has solved and has adopted the fixed nozzle of damping mode to lead to the more troublesome problem of tooth cleaning device use among the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.

FIG. 1 is a schematic view of a dental prophylaxis device with a detachable structure according to an embodiment of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure a-a of fig. 1.

FIG. 3 is a schematic structural view of a removable shell of a dental scaler with a convenient structure for assembly and disassembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of an embodiment of a locking device of a tooth washing machine with a convenient structure for disassembly and assembly according to the present invention.

FIG. 5 is an exploded view of an embodiment of the device for performing a dental scaler with a convenient and quick assembly/disassembly structure according to the present invention.

In the figure: 10. the tooth washing device comprises a tooth washing device body with a structure convenient to assemble and disassemble, a shell 20, a spray head device 30, a connecting rod 301, a spray head 302, a locking device 40, a button 401, a boss 4011, a mounting seat 402, an inner hole 4021, a limiting sleeve 403, a limiting groove 4031, a limiting groove 404, a first spring 405, a second spring 405, a limiting block 406, a 4061 clamping block 4062, a spacing groove 4062, a rotating shaft 4063, an execution device 50, a fixing frame 501, a battery base 502, a battery base 503, a driving motor 504, a bevel gear tooth 505, an eccentric wheel 506, a linkage shaft 507, a moving piston 508, a conversion joint 508, a 5081 water inlet, a 5082 water outlet, a 509 water storage device 510, a water guide pipe 511, a first one-way valve plate 512 and a second one-way valve plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom" are used only with reference to the orientation of the drawings, and the directional terms are used for illustration and understanding of the present invention, and are not intended to limit the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

Referring to fig. 1, 2 and 3, in the present embodiment, the dental scaler 10 with a convenient structure for assembly and disassembly includes a housing 20, a nozzle device 30, a locking device 40 and an actuating device 50.

In this embodiment, the nozzle assembly 30 includes a connecting rod 301 and a nozzle 302, the connecting rod 301 is hollow, one end of the connecting rod is connected to the adapter 508 of the actuator 50, and the other end of the connecting rod is inserted into one end of the nozzle 302. One end of the nozzle 302 close to the connecting rod 301 is closely fitted to the port of the housing 20, and the other end of the nozzle 302 is bent toward the side.

In this embodiment, referring to fig. 3 and fig. 4, the locking device 40 includes a button 401, a mounting seat 402, a limiting sleeve 403, a first spring 404, a second spring 405, and a limiting block 406. One side of the mounting seat 402 is connected with one end of the adapter 508 of the actuator 50, and one end of the connecting rod 301 passes through the inner hole 4021 of the mounting seat 402 and is communicated with the water outlet 5082 of the adapter 508. A limiting sleeve 403 is arranged above the inner hole 4021 of the mounting seat 402, the limiting sleeve 403 is sleeved outside the connecting rod 301, and limiting grooves 4031 are arranged on two sides of the limiting sleeve 403. One end of the limiting block 406 is rotatably connected to the mounting base 402 via a rotating shaft 4063, and the other end thereof is provided with a clamping block 4061 and a clearance groove 4062. The avoiding groove 4062 is located below the clamping block 4061, and the clamping block 4061 penetrates through the limiting groove 4031 to press the connecting rod 301, so that the fastening effect is improved. One side of the clamping block 4061, which is far away from the mounting seat 402, is provided with a guide groove for guiding the insertion of the connecting rod 301, so that the mounting is more convenient and faster, and the effect of protecting the connecting rod 301 can be achieved. Both sides of the connecting rod 301 are provided with a limiting block 406, the two limiting blocks 406 are connected through a first spring 404, the first spring 404 is in a compressed state, and the restoring acting force of the first spring 404 is used for enabling a clamping block 4061 of the limiting block 406 to clamp the connecting rod 301.

One end of the button 401 is located outside the housing 20, and the other end of the button 401 is located on the mounting seat 402 and located in the avoiding groove 4062 of the limiting block 406. The button 401 is beneficial to push the stop block 406 to rotate. The limit groove 4031 is beneficial to limiting the rotation range of the limit block 406 and the depth of the button 401 pressed into the shell 20, and can play a role in protection, so that the structural stability is improved. One side of the button 401, which is away from the connecting rod 301, is provided with a protrusion block 4011, and the protrusion block 4011 is provided with an inclined surface for extrusion guiding. The raised block 4011 facilitates the button 401 pushing the stopper 406 to release the fastening effect. The two ends of the second spring 405 are respectively connected with the button 401 and the limiting sleeve 403. The second spring 405 facilitates the button 401 to return to the initial position, which is more convenient to use. Alternatively, a sliding groove is formed in the mounting seat 402 along the moving direction of the button 401, and one end of the button 401, which is in contact with the stopper 406, is located in the sliding groove. The sliding groove fixes the moving track of the button 401, so that the button 401 does not touch or deviate from the connecting rod 301 in the moving process.

When it is necessary to detach the head 302, the button 401 is pressed, the head 302 is pulled out through a portion where the head 302 contacts the housing 20, and the button 401 is released. When the nozzle 302 needs to be installed, the connecting rod 301 is only required to be pressed against the clamping block 4061 through the nozzle 302, so that the connecting rod 301 is inserted into the inner hole 4021 of the installation seat 402; alternatively, the button 401 may be pressed and then the connector bar 301 may be put in to protect the connector bar 301.

In this embodiment, referring to fig. 3 and fig. 5, the actuating device 50 includes a fixing frame 501, a battery base 502, a driving motor 503, a bevel gear 504, an eccentric wheel 505, a linkage shaft 506, a moving piston 507, a conversion joint 508, a water reservoir 509, a water conduit 510, a first check valve plate 511, and a second check valve plate 512. A battery base 502 is threadably coupled to an end of housing 20 remote from spray head 302, and battery base 502 is electrically coupled to a drive motor 503. The driving motor 503 is arranged on the fixing frame 501, and an output shaft of the driving motor 503 is meshed with the bevel gear 504. The eccentric wheel 505 is rotatably arranged on the bevel gear, one end of the linkage shaft 506 is fixedly connected with the eccentric wheel 505, the other end of the linkage shaft 506 is connected with one end of the moving piston 507, and the linkage shaft 506 is used for driving the moving piston 507 to reciprocate along the axial direction of the fixed frame 501, so that high-pressure pulse pressure is provided. One end of the moving piston 507 close to the linkage shaft 506 is internally closed, and the other end of the moving piston 507 is communicated with the connecting rod 301 through the conversion joint 508 and is arranged in a corrugated pipe shape, so that the effects of improving the compression space of the moving piston 507 and high-pressure pulse are facilitated.

Wherein, both ends of the adapter 508 are respectively communicated with the moving piston 507 and the connecting rod 301, one end of the adapter 508 connected with the connecting rod 301 is provided with a water outlet 5082, the side surface thereof is also provided with a water inlet 5081, the water inlet 5081 is connected with one end of the water conduit 510, and the other end of the water conduit 510 is positioned in the water storage device 509. The water reservoir 509 is disposed on the side of the holder 501 remote from the drive motor 503. The first check valve plate 511 is arranged at the water inlet 5081, the second check valve plate 512 is arranged at the water outlet 5082, and the surfaces of the first check valve plate 511 and the second check valve plate 512 are provided with arc-shaped through grooves. The first check valve sheet 511, the moving piston 507 and the peripheral wall of the conversion joint 508 provided with the water inlet 5081 are encircled to form a first check valve, and the second check valve sheet 512, the moving piston 507 and the end part of the conversion joint 508 provided with the water outlet 5082 are encircled to form a second check valve. When the linkage shaft 506 moves downwards, the second one-way valve plate 512 is blocked, the first one-way valve plate 511 is opened, and liquid is sucked from a water inlet hole at the first one-way valve plate 511; when the linkage shaft 506 moves upwards, the first one-way valve plate 511 is closed, the second one-way valve plate 512 is opened, and liquid sucked into the conversion joint 508 when the linkage shaft 506 moves downwards can be squeezed out from a water outlet at the second one-way valve plate 512. The linkage shaft 506 moves up and down at a high speed, and the liquid is continuously sprayed in the form of high-frequency pulses.

In this embodiment, the housing 20 is symmetrically provided with slots therein, and two ends of the fixing frame 501 are located in the slots. After all components of the actuating device 50 are uniformly installed on the fixing frame 501 outside, two ends of the fixing frame 501 are placed in the clamping grooves, the actuating device 50 is sent into the shell 20 by pushing the fixing frame 501, and the installation and the disassembly are convenient and rapid.

The working principle of the utility model is as follows:

when in use, the connecting rod 301 is pressed against the clamping block 4061 through the spray head 302, so that the connecting rod 301 is inserted into the inner hole 4021 of the mounting seat 402; alternatively, the button 401 may be pressed and then the connector bar 301 may be put in. When the button 401 is pressed, the second spring 405 is compressed, the limit block 406 is rotated by the pushing force of the button 401 toward the side away from the connecting rod 301, the distance between the clamping blocks 4061 is increased, the first spring 404 is compressed, and the connecting rod 301 can be smoothly inserted into the inner hole 4021. The button 401 is released and the button 401 is restored to the original state by the elastic restoring force of the second spring 405. The limiting block 406 loses the extrusion force of the button 401, and rotates towards the connecting rod 301 under the elastic restoring force of the first spring 404, so that the clamping block 4061 clamps the connecting rod 301 to fix the spray head 302.

The power switch is turned on, the driving motor 503 drives the bevel gear 504 to rotate, the bevel gear 504 drives the eccentric wheel 505 to rotate together, and the eccentric wheel 505 drives the linkage shaft 506 and the moving piston 507 to reciprocate. When the linkage shaft 506 moves downwards, the second one-way valve plate 512 is closed, the first one-way valve plate 511 is opened, and liquid in the water storage device 509 is sucked from a water inlet hole at the first one-way valve plate 511 through the water guide pipe 510; when the linkage shaft 506 moves upwards, the first one-way valve plate 511 is closed, the second one-way valve plate 512 is opened, liquid sucked into the conversion joint 508 when the linkage shaft 506 moves downwards can be squeezed out from a water outlet hole at the second one-way valve plate 512, and the liquid enters the spray head 302 through the connecting rod 301 and is sprayed out from the spray head 302.

After use, the button 401 is pressed and the nozzle 302 is pulled out.

In the present embodiment, the present invention relates to a dental scaler 10 with a structure for easy assembly and disassembly, wherein the dental scaler 10 with the structure for easy assembly and disassembly comprises a shell 20, an actuating device 50, a nozzle device 30 and a locking device 40. The actuator 50 is in communication with the spray head device 30 via the locking device 40, the actuator 50 being disposed within the housing 20 for providing a high pressure pulsed fluid flow. The nozzle device 30 comprises a connecting rod 301 and a nozzle 302, the nozzle 302 is located outside the casing 20, and two ends of the connecting rod 301 are respectively connected with the nozzle 302 and the mounting seat 402 of the locking device 40. The limiting rods are respectively arranged on two sides of the connecting rod 301, one end of each limiting rod is rotatably connected with the mounting seat 402, and the other end of each limiting rod is tightly attached to the connecting rod 301 and used for clamping the connecting rod 301. Two ends of the first spring 404 are respectively connected with one end of the limiting blocks 406 at two different sides, the first spring 404 is in a compressed state, and the restoring acting force of the first spring 404 causes the limiting blocks 406 to clamp the connecting rod 301. One end of the button 401 is located outside the shell 20, the other end of the button is in contact with the limiting block 406, the limiting block 406 can be pushed to be away from the connecting rod 301 by pressing the button 401 towards the inside of the shell 20, the connecting rod 301 can be easily pulled out of the locking device 40, the use is convenient, and the problem that the use of the tooth washing device 10 is troublesome due to the fact that a damping mode is adopted to fix the nozzle in the prior art is solved.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A tooth washing device with a convenient structure for disassembly and assembly is characterized by comprising:

a housing;

2. The tooth washing device with the structure convenient for disassembly and assembly as claimed in claim 1, wherein the locking device further comprises a limiting sleeve, the limiting sleeve is arranged on the mounting seat and sleeved outside the connecting rod; the limiting sleeve is provided with a limiting groove; a clamping block and a clearance groove are arranged on one side of the limiting block clamping the connecting rod, and the clamping block penetrates through the limiting groove and is tightly attached to the connecting rod; one end of the button, which is contacted with the limiting block, is positioned in the avoiding groove; one side of the button, which is far away from the connecting rod, is provided with a convex block, and the convex block is provided with an inclined plane for extrusion guiding.

3. The dental rinser with convenient assembly and disassembly structure of claim 2, wherein the locking device further comprises a second spring; and two ends of the second spring are respectively connected with the button and the limiting sleeve.

4. The dental rinser with convenient assembly and disassembly structure as claimed in claim 2, characterized in that a guide groove is arranged on one side of the fixture block away from the mounting seat for guiding the insertion of the connecting rod.

5. The tooth washing device with the convenient and fast dismounting structure as claimed in claim 1, wherein the mounting seat is provided with a sliding groove along the moving direction of the button, and one end of the button contacting with the limiting block is located in the sliding groove.

6. The tooth washing device with the structure convenient for disassembly and assembly as claimed in claim 1, wherein the actuating device comprises a fixing frame, a battery base, a driving motor, a bevel gear, an eccentric wheel, a linkage shaft and a moving piston; the battery base is in threaded connection with one end, far away from the spray head, of the shell, and the battery base is in telecommunication connection with the driving motor; the driving motor is arranged on the fixing frame, and an output shaft of the driving motor is meshed with the bevel gear; the eccentric wheel is rotatably arranged on the bevel gear, one end of the linkage shaft is fixedly connected with the eccentric wheel, the other end of the linkage shaft is connected with one end of the moving piston, and the linkage shaft is used for driving the moving piston to reciprocate along the axial direction of the fixed frame; the other end of the moving piston is communicated with the connecting rod.

7. The dental rinser with convenient and fast disassembly and assembly structure of claim 6, characterized in that the moving piston is made of rubber; one end of the moving piston, which is close to the linkage shaft, is internally sealed, and the other end of the moving piston is arranged in a corrugated pipe shape.

8. The dental rinser with convenient assembly and disassembly structure of claim 6, wherein the execution device further comprises an adapter, a water storage device and a water conduit; the conversion joint is provided with a water inlet and a water outlet, the conversion joint is hollow, one end of the conversion joint is connected with the moving piston, the other end of the conversion joint is provided with a water outlet, and the water outlet is communicated with the connecting rod; the water inlet is positioned on the side edge of the adapter, the water inlet is connected with one end of the water guide pipe, and the other end of the water guide pipe is positioned in the water storage device; the water storage device is arranged on one side of the fixing frame far away from the driving motor.

9. The dental rinser with convenient and fast disassembly and assembly structure of claim 8, characterized in that the execution device further comprises a first one-way valve plate and a second one-way valve plate; the surfaces of the first check valve plate and the second check valve plate are provided with arc-shaped through grooves; the first check valve block is arranged at the water inlet, the second check valve block is arranged at the water outlet, the first check valve block, the moving piston and the peripheral wall of the conversion joint, which is provided with the water inlet, are encircled to form a first check valve, and the second check valve block, the moving piston and the end part of the conversion joint, which is provided with the water outlet, are encircled to form a second check valve.

10. The tooth washing device with the structure convenient for disassembly and assembly as claimed in claim 8, wherein the shell is symmetrically provided with a slot inside, and two ends of the fixing frame are located in the slot.