CN204814254U

CN204814254U - Electric toothbrush

Info

Publication number: CN204814254U
Application number: CN201520419618.1U
Authority: CN
Inventors: 郑建立
Original assignee: NINGBO AOLBEA ORAL CARE PRODUCTS CO Ltd
Current assignee: NINGBO AOLBEA ORAL CARE PRODUCTS CO Ltd
Priority date: 2015-06-10
Filing date: 2015-06-10
Publication date: 2015-12-02
Anticipated expiration: 2025-06-10

Abstract

The utility model discloses an electric toothbrush, including handle and brush head, the inside cavity of handle is formed with the chamber way, motor, gear box, drive assembly, pendulum rod and sealing washer in saying, the chamber has set gradually, the pendulum rod is worn to penetrate in the sealing washer, sealing washer and the sealed laminating of pendulum rod, sealed snare is equipped with tighrening ring, tighrening ring oppression sealing washer and pendulum rod interference fit. The utility model discloses a fastening constraining effect of tighrening ring can effectually avoid the pendulum rod to warp at the not hard up or sealing washer of the cooperation of swing in -process and sealing washer, leads to seal failure, in say in the chamber that the use leads to water to get into the handle, influences the condition of electric toothbrush's normal work.

Description

A kind of electric toothbrush

Technical field

This utility model relates to oral hygiene device, particularly a kind of electric toothbrush.

Background technology

Electric toothbrush is the instrument for cleaning teeth, and its interior, owing to being provided with electric device, makes toothbrush have more abundant using function, electric toothbrush comprises brush and handle, and handle inner hollow is provided with tract, is provided with motor, transmission component, fork and sealing ring in tract, fork is located in tract, be socketed in sealing ring, closely cooperate with sealing ring, fork front end connects brush, rear end connection for transmission assembly, fork can with certain angle reciprocating rotation under the effect of motor and transmission component, drive brush back rotation at a certain angle simultaneously, but in the long process of fork, the athletic meeting of fork causes and the coordinating to produce and to loosen or distortion is caused at position that sealing ring coordinates with fork of sealing ring, thus cause sealing ring to produce gap with coordinating of fork, cause in the work process of electric toothbrush, water can cause damage to circuit and motor along fork in the tract of the gap inflow handle coordinated, even security incident can be caused, there is the space of improvement.

Utility model content

This utility model is to overcome defect in above-mentioned prior art, and sealing ring and fork are sealed and matched intensity to provide one to ensure, ensure the electric toothbrush of sealing.

For achieving the above object, this utility model provides a kind of electric toothbrush, comprises handle, brush, and described handle inner hollow is formed with tract, includes motor, transmission component, fork and sealing ring successively forward in tract from the rear end of handle; Fork is located in tract, be socketed in sealing ring, closely cooperate with sealing ring, fork front end passes tract and connects brush, rear end connection for transmission assembly, fork with certain angle reciprocating rotation under the effect of motor and transmission component, can drive brush back rotation at a certain angle simultaneously, described sealing ring outer surface is arranged with dead ring, dead ring compressing sealing ring and fork interference fit.

By above-mentioned setting, by dead ring is set in sealing ring outer surface, for coordinating of pinch seal circle and fork, play binding constraint, avoid fork in swing process with the mating part of the matching loose of sealing ring or sealing ring and fork owing to working long hours deformation and cause seal failure, affect electric toothbrush in the tract preventing water to enter handle by both gaps normally to work, thus ensure that the safety and stability of electric toothbrush.

Be set to further: described sealing ring is that stepped round platform is arranged, and the step surface of described sealing ring and the leading section inwall of tract fit tightly, and form a room in handle front end, and the sidewall of described room is provided with the osculum be conducted with handle outer.

By above-mentioned setting, fitted tightly by the inwall of the step surface of sealing ring and the tract of handle leading section, thus the water entering room along fork in the use procedure of electric toothbrush can be avoided to enter the operation that tract affects internal part, ensure the functional reliability of electric toothbrush, the water assembled in room can be discharged by osculum simultaneously, avoid that fork, sealing ring, dead ring are under water for a long time affect service life, also can reduce dirt or antibacterial remains in the interior hygienic issues caused of room.

Be set to further: described transmission component comprises drivewheel, driven pulley, cam and cam contiguous block, described drivewheel is fixedly connected with the rotating shaft of motor, described driven pulley is meshed with drivewheel, one center, place of described cam is fixed on the eccentric part of driven pulley, another center, place of described cam is equipped with fork, and described cam contiguous block connects cam and fork.

By above-mentioned setting, formed to a crank-rocker structure, under the effect of motor and transmission component, fork can carry out reciprocally swinging, thus the brush reciprocally swinging that can link further, thus can effectively clean tooth.

Be set to further: described sealing ring circumference is provided with annular caulking groove, and described dead ring is arranged in annular caulking groove.

By above-mentioned setting, by the effect of annular caulking groove, dead ring can be made to be set on sealing ring more reliable and stable, effectively prevent dead ring and in use depart from sealing ring.

Be set to further: the end cross-sectional semicircular in shape of described fork is arranged.

Be set to further: described dead ring is made up of rustless steel.

Compared with prior art, this utility model is by being set on sealing ring by dead ring, for coordinating of pinch seal circle and fork, start the effect of binding constraint, thus avoid fork in swing process with the mating part of the matching loose of sealing ring or sealing ring and fork due to the deformation that works long hours, avoid and coordinating of sealing ring and fork produce gap and cause seal failure, avoiding affects electric toothbrush in water enters handle tract by both gaps and normally works, thus ensure that the safety and stability of electric toothbrush; The inwall of the tract of sealing ring and handle closely cooperates formation one for assembling the room of water simultaneously, and room is provided with osculum, the water in room can be discharged, ensure the service life of electric toothbrush, and the hygienic issues that less hydrops causes.

Accompanying drawing explanation

Fig. 1 is the perspective view of this utility model electric toothbrush;

Fig. 2 is the partial sectional view of handle in Fig. 1;

Fig. 3 is the explosive view of handle in Fig. 1.

Labelling the following drawings labelling thereon by reference to the accompanying drawings:

1-hands handle; 11-tract; 111-room; 12-base; 13-elastic component; 14-electric machine support; 15-motor; 16-transmission component; 161-drivewheel; 162-driven pulley; 163-cam; 164-cam contiguous block; 17-gear-box; 171-gear box cover; 18-fork; 19-sealing ring; 191-step surface; 2-brush; 3-dead ring; 4-osculum.

Detailed description of the invention

Below in conjunction with accompanying drawing, a detailed description of the invention of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of detailed description of the invention.

This utility model electric toothbrush as shown in Figure 1, comprises handle 1 and brush 2, and handle 1 and brush 2 removably connect, and the modes such as brush 2 is established by card, socket are installed on handle 1, and handle 1 work can drive brush 2 to move, thus cleans toothbrush.

As shown in Figures 2 and 3, handle 1 inner hollow is provided with tract 11, the parts such as base 12, elastic component 13, electric machine support 14, motor 15, gear-box 17, transmission component 16, fork 18 and sealing ring 19 are disposed with forward from the rear end of handle 1 in this tract 11, transmission component 16 is arranged in gear-box 17, is compressed by gear box cover 171, transmission component 16 comprises drivewheel 161, driven pulley 162, cam 163 and cam contiguous block 164, drivewheel 161 is fixedly connected with the power transmission shaft of motor, driven pulley 162 is meshed with drivewheel 161, one center, place of cam 163 is fixed on the eccentric part of driven pulley 162, another center, place is worn and has been penetrated fork 18, cam contiguous block 164 is connected with between cam 163 and fork 18, cam 163 and fork 18 are linked, the number of teeth of driven pulley 162 is more than the number of teeth of drivewheel 161, it is a reducing gear, motor 15 rotates under the effect of control circuit, motor 15 drives drivewheel 161 to rotate, drivewheel 161 drives the driven pulley 162 be engaged with to rotate, driven pulley 162 is with moving cam 163 to swing, by the effect of cam contiguous block 164, cam 163 drives fork 18 to swing, form the mechanism of a similar drive rocker, fork 18 is made to do reciprocally swinging.

As shown in Figure 3, sealing ring 19 is that stepped round platform is arranged, be made up of rubber, the step surface 191 of sealing ring 19 is fitted with the leading section inner tight of the tract 11 of handle 1, base 12 is threaded with handle 1, conflict between base 12 and electric machine support 14 and be connected with elastic component 13, elastic component 13 can start the effect of pretension, make the step surface 191 of sealing ring 19 and the inwall of tract 11 keep the state fitted tightly always, sealing ring 19 coordinates with the tract 11 at top and is formed with room 111, fork 18 is worn and is penetrated in sealing ring 19, sealing ring 19 and fork 18 are sealed and matched, fork 18 extends to outside handle 1 through sealing ring 19 and is connected with brush 2, brush 2 can be driven to move, sealing ring 19 is arranged with dead ring 3, this dead ring 3 is made up of rustless steel, dead ring 3 oppresses sealing ring and fork interference fit, dead ring 3 can effectively be stepped up sealing ring 19, avoid sealing ring 19 to produce in fork 18 motor process to loosen, preferred sealing ring 19 is provided with annular caulking groove, dead ring 3 is embedded at annular caulking groove, handle 1 is provided with the osculum 4 be connected with room 111, and the water put aside in power toothbrush workpiece process in room 111 can be discharged by osculum 4, ensures the cleaning of electric toothbrush, ensures the service life of electric toothbrush.

More preferably the end cross-sectional semicircular in shape of fork 18 is arranged.

Compared with prior art, this utility model is by being set on sealing ring 19 by dead ring 3, for coordinating of pinch seal circle 19 and fork 18, start the effect of binding constraint, thus avoid fork 18 in swing process with the mating part of the matching loose of sealing ring 19 or sealing ring 19 and fork 18 due to the deformation that works long hours, avoid and coordinating of sealing ring 19 and fork 18 produce gap and cause seal failure, avoiding affects electric toothbrush in water enters handle 1 tract 11 by both gaps and normally works, thus ensure that the safety and stability of electric toothbrush, sealing ring 19 closely cooperates formation one for assembling the room 111 of water with the inwall of the tract 11 of handle 1 simultaneously, and room 111 is provided with osculum 4, the water in room 111 can be discharged, ensure the service life of electric toothbrush.

Be only a specific embodiment of the present utility model above, but this utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.

Claims

1. an electric toothbrush, comprise handle, described handle inner hollow is formed with tract, motor, gear-box, transmission component, fork and sealing ring is included successively forward from the rear end of handle in described tract, described fork is worn and is penetrated in sealing ring, and sealing ring and fork seal fits, and it is characterized in that, described sealing ring is arranged with dead ring, dead ring compressing sealing ring and fork interference fit.

2. electric toothbrush according to claim 1, it is characterized in that, described sealing ring is that stepped round platform is arranged, the step surface of described sealing ring and the leading section inwall of tract fit tightly, form a room in handle front end, the sidewall of described room is provided with the osculum be conducted with handle outer.

3. electric toothbrush according to claim 1 and 2, it is characterized in that, described transmission component comprises drivewheel, driven pulley, cam and cam contiguous block, described drivewheel is fixedly connected with the rotating shaft of motor, described driven pulley is meshed with drivewheel, one center, place of described cam is fixed on the eccentric part of driven pulley, and another center, place of described cam is equipped with fork, and described cam contiguous block connects cam and fork.

4. electric toothbrush according to claim 3, is characterized in that, described sealing ring circumference is provided with annular caulking groove, and described dead ring is arranged in annular caulking groove.

5. electric toothbrush according to claim 4, is characterized in that, the end cross-sectional semicircular in shape of described fork is arranged.

6. electric toothbrush according to claim 5, is characterized in that, described dead ring is made up of rustless steel.