CN201064496Y

CN201064496Y - Electric toothbrush head

Info

Publication number: CN201064496Y
Application number: CNU2006201544776U
Authority: CN
Inventors: 卢小平
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-08
Filing date: 2006-12-08
Publication date: 2008-05-28
Anticipated expiration: 2016-12-08

Abstract

The utility model discloses an electric toothbrush head, comprising driving and transmission devices such as a toothbrush head body and a motor, etc. The utility model is characterized in that the utility model also comprises at least a group of toothbrush seats with implanted toothbrush hair , a support frame, a crank shaft, a fixing shaft and a revolving shaft; a pit is arranged on the toothbrush head body; one end of the fixing shaft is fixed inside the hole of the support frame, and the other end of the fixing shaft is fixed inside the hole arranged at the front end of the toothbrush head body; the middle part of the toothbrush seat is provided with a long waist-shaped through hole and is nested on the fixing shaft through the through hole which can slide relative to the fixing shaft; an upper through hole for the crank shaft to be perforated into is arranged between the back part of the toothbrush seat and the long waist-shaped through hole; one end of the crank shaft is connected with the revolving shaft, and the other end of the crank shaft passes through the through hole of the upper part of the toothbrush seat and is connected inside the hole at the front end of the toothbrush head body. The utility model has the advantages that the utility model has the same brushing effect with that of manual sequential brushing and not only can improve tooth cleaning effect but also avoid contrary brushing to protect teeth and gums.

Description

A kind of electric toothbrush head

Technical field

This utility model relates to toothbrush, is specifically related to a kind of electric toothbrush head of simulating staff along the brush action.

Background technology

Toothbrush has been the articles for daily use of people's indispensability; Along with development of science and technology, people are in order to improve the effect of brushing teeth, and improve the efficient of brushing teeth and speed and have invented electric toothbrush, and existing a variety of electric toothbrush till settled the present also has a lot of relevant patents; This shows a lot of people in the development of paying close attention to and promoting electric toothbrush, everybody also admits this is a very huge market; But in the market level but is not to welcome so, and it much is a reason that its price exceeds ordinary toothbrush, and the extremely numerous experts' of its effect query then is an Another reason.

The expert of present numerous dental cares aspect is consistent to think that vertical brushing teeth along the slot direction is the most effective and to gingiva, injury of teeth minimum; But this direction chirokinesthetic custom direction that is not people, so most of people is still the horizontal brush of Dragsaw type that adopts custom.

Present existing electric toothbrush aspect mainly contains following several mode:

One, rotary: with unidirectional or two-way rotation of one or more circular brush dishes or swing; Brush dish high speed rotating, big and be difficult to go deep into teeth space to tooth surface abrasion, queried at most by the expert, but because its make comparatively make things convenient for, technology maturation and most widely used.

Two, laterally reciprocating type: simulation custom brush method, the structure relative complex, effect is relatively poor.

Three, vertically reciprocating type: reciprocal two kinds of linear reciprocating and arc arranged, the different modes of single group and many groups is arranged, its shortcoming is to hocket along brush and contrary brush, and is bigger to the gingiva damage.

Four, vertical roller-brush type: require large-size because need circle round, size hour bristle can shorten

Five, influence elasticity, thereby can't brush dark seam, must not no longer add guard shield, size is further strengthened, make the oral cavity uncomfortable in order to prevent to brush the skin on inner teeth gear opposite, oral cavity.

Six, vibration type: produce vibration when brushing teeth, can play auxiliary cleaning action, existing multinomial Patent document data is open, but rarely seen actual product.

Seven, acoustic vibration formula: produce ultrasonic vibration when brushing teeth, cost an arm and a leg, be difficult in a short time popularize on a large scale.

Eight, flow type initiatively: current initiatively, system complex costs an arm and a leg and effect can not obviously be improved.

Nine, combined type: simultaneously comprehensive two or more above-mentioned functions.

Because the life-span of bristle, electric toothbrush head can be changed usually than the weak point of body.

The power part of existing electric toothbrush generally comprises:

Battery: in the majority with two joint AA (No. five) batteries, a joint AA battery also arranged, a joint C-size battery also arranged, along with popularizing of rechargeable battery, a lot of built-in rechargeable batteries are arranged also.

Motor: employing be mostly dc small motor.

Slow down: have and adopt multi-stage gear to slow down, cost is low, but it is bigger to take up room; Also have and adopt planetary gear speed-reduction, arrange compactly, but cost is higher; Also have and directly drive by motor.

Power output: output turning moment, eccentric swing moment, axial reciprocating force, teeter power etc. are arranged usually.

Electric toothbrush head of the prior art all can't realize simulating the working method of staff along brush.Staff is along the process of brush, to brush tooth is example: bristle does not contact tooth or gingiva when moving on the toothbrush, and the back toothbrush that puts in place just leans on gingiva and tooth, and down brushes simultaneously, brush a back toothbrush and shrink back and up move when avoiding tooth and gingiva, the back toothbrush that puts in place leans on gingiva and tooth again; So constantly circulation, the travel paths of toothbrush is an ellipse substantially, brush lower tooth or the inboard is reverse, because toothbrush has left tooth and gingiva when backhaul, thus can not produce contrary brush, thus minimizing is to the damage of gingiva.These numerous just experts recommend the reason place along brush.

The utility model content

The purpose of this utility model promptly is to provide a kind of staff of can simulating along brush, the electric toothbrush head of ordinary toothbrush in the approximate prior art of size, thus improve cleaning effect when brushing teeth, protection gingiva, and can improve the speed of brushing teeth.

For achieving the above object, technical scheme provided by the utility model is: a kind of electric toothbrush head, it comprises driving and actuating devices such as a brush body, motor, it is characterized in that it comprises that also at least one group of brush holder, a support, a profile that is implanted with bristle is

The bent axle of shape, a fixed axis and single-revolution axle; Described brush body is provided with a pit, and described support, bent axle, fixed axis, gyroaxis and brush holder all are arranged in this pit; This pit front end is provided with two respectively in order to the hole of an end of fixing described bent axle and fixed axis, and its rear end is respectively equipped with one and is used for the through hole that is locked this electric toothbrush head on the electric toothbrush body and holds gyroaxis; One end of described gyroaxis is provided with one and is used for connecting in order to transmit the structure of moment of torsion with the actuating device of electric toothbrush body, and its other end connects bent axle and transmits moment of torsion; One end of described fixed axis is fixed in the set hole of support, and the other end is fixed in the set hole of described brush body front end; The middle part of described brush holder is provided with a long waist shaped through hole, and is sheathed on the described fixed axis by this through hole, and this through hole can slide relatively with fixed axis; Also be provided with a top through hole that is used for wearing described bent axle between described brush holder back and the described long waist shaped through hole; One end of described bent axle connects described gyroaxis, and its other end passes described brush holder top through hole and is connected in the hole of described brush body front end.

This utility model circles round by bent axle and drives the brush holder swing, and brush holder also can stretch out and regain when swinging up and down, thereby makes bristle that a process of stretching out and regaining be arranged when moving up and down, thus the suitable brush action of simulation staff.

Aforesaid electric toothbrush head is characterized in that, it comprises that two groups or many groups are implanted with the brush holder of bristle, and it is end to end that the corresponding brush holder of described bent axle profile is two sections or multistage

Shape, described each brush holder is connected successively, is set in respectively on the eccentric segment of every section bent axle.

Aforesaid electric toothbrush head is characterized in that, described bent axle is the hardware by the one bending.

Aforesaid electric toothbrush head is characterized in that, an end of described gyroaxis is used for connecting in order to transmit the structure of moment of torsion with the actuating device of electric toothbrush body, is a projection that is provided with at its end face; This protruding shape can be one of " ten ", " Y " or " D " shape.

The utility model has the advantages that: this utility model is by being arranged on the elastic of brush holder on the bent axle and swinging; can simulate staff along the brush action; the electric toothbrush head of ordinary toothbrush in the approximate prior art of its size; can with toothbrush of the prior art being connected, can improve cleaning effect, protection gingiva when brushing teeth, also can improve the speed of brushing teeth.

Description of drawings

Fig. 1 is a kinematic sketch of mechanism of the present utility model.

Fig. 2 is the vertical view of this utility model embodiment.

Fig. 3 is the cutaway view of A-A among Fig. 2.

Fig. 4 is the cutaway view Amplified image of B-B among Fig. 2.

Fig. 5 is bent axle 16 front views among Fig. 3.

Fig. 6 is that enlarged drawing is looked on the left side of Fig. 5.

Fig. 7 is the front view of the gyroaxis 17 among Fig. 3.

Fig. 8 is that enlarged drawing is looked on the right side of Fig. 7.

Fig. 9 is that enlarged drawing is looked on the left side of Fig. 7.

Below in conjunction with drawings and Examples, this utility model is further specified.

The specific embodiment

Embodiment: a kind of electric toothbrush head that is provided with three groups of independence brush holders is provided, and it can simulate moving along brush of staff.

Referring to Fig. 1, this figure is a motion principle sketch map of the present utility model.Operation principle of the present utility model is such: the 1st, and crank, the 2nd, guide rod, the 3rd, slide block, crank 1 is a driving link, makes circular motion around the A point, and an end of guide rod 2 and crank 1 are articulated in the B point, with slide block 3 relative slips, slide block 3 can rotate around fulcrum C, and when crank 1 was made circular motion, the movement locus of another end points D of guide rod 2 was shown in the double dot dash line on figure the right.If guide rod 2 is bristles, then the D point is the working end of bristle, goes back move left and right simultaneously in the process that is moving up and down in a working cycle property; If bristle stretches out when being used for brushing teeth in the electric toothbrush, bristle so then can be avoided contrary brush toward reclaiming during backhaul, also can change the direction of D point along orbiting motion by the direction of motion that changes crank 1.

Referring to Fig. 2～Fig. 9, this utility model embodiment provides a kind of electric toothbrush head, and it comprises a brush body 18, driving and actuating devices such as motor, it also comprises three groups of brush holders that are implanted with bristle, is respectively 11,12,13, corresponding each brush holder of one support, 15, one profiles be three sections end to end

Shape bent axle 16, described each

brush holder

11,12,13 is connected successively, is set on the eccentric segment of every section bent axle 16 respectively; It also comprises a fixed axis 14 and single-revolution axle 17; This brush body 18 is provided with a pit 20, and described support 15, bent axle 16, fixed axis 14,

brush holder

11,12,13 all are arranged in this pit 20; These pit 20 front ends are provided with two respectively in order to the hole of an end of fixing described bent axle 16 and fixed axis 14, and its rear end is respectively equipped with one and is used for the through hole that is locked this electric toothbrush head on electric toothbrush body 23 and holds gyroaxis 17; One end of described gyroaxis 17 is provided with one and is used for connecting in order to transmit the structure 19 of moment of torsion with the actuating device of electric toothbrush body 23, and its other end connects bent axle 16 and transmits moment of torsion; One end of described fixed axis 14 is fixed in the set hole of support 15, and the other end is fixed in the set hole of described brush body 18 front ends; The middle part of described

brush holder

11,12,13 is equipped with a long waist shaped through hole 21, and is sheathed on the described fixed axis 14 by this through hole 21, this through hole 21 can with fixed axis 14 relative slips; Be equipped with a top through hole 22 that is used for wearing described bent axle 16 between described

brush holder

11,12,13 backs and the described long waist shaped through hole 21; One end of described bent axle 16 snaps in the gyroaxis 17, and its other end passes described

brush holder

11,12,13 top through holes 22 and is connected in the hole of described brush body 18 front ends; This utility model circles round by bent axle 16 and drives

brush holder

11,12,13 swings, and each brush holder also can stretch out and regain when swinging up and down, thereby makes bristle that a process of stretching out and regaining be arranged when moving up and down, thus the suitable brush action of simulation staff.

As shown in Figure 3; the axle sleeve that connects the brush holder support part can entangle gyroaxis 17 and drive its rotation; gyroaxis 17 drives bent axle 16 and rotates; circling round of bent axle 16 drives three

brush holder

11,12,13 each self-swingings, and the slotted hole of brush holder and fixed axis 14 relative slips make each brush holder in swing the action of stretching out and regaining be arranged; thereby bristle is stretched out when brush is moving; regain empty avoiding during backhaul, reduce contrary brush, take care of one's teeth and gingiva.

Referring to Fig. 4, when bent axle 16 rotates around its axle center, promptly drive each brush holder and make compound motion, be located in the fixed axis 14 of each brush holder, can slide relatively, the movement locus of bristle end will be similar as Fig. 1, and its movement locus of the bristle of diverse location can be different, but all can when swinging, stretch out and regain, so just can reach and the similar effect of the suitable brush of staff; Also can change the direction of bristle by the direction of motion that changes bent axle 16, thereby adapt to the different requirements of going up the lower tooth and the interior outside along orbiting motion.This utility model is at the single group of employing brush holder, when it is in backhaul, thereby, the oral cavity inwall cause bristle empty avoiding to form contrary the brush because can pressing toothbrush on tooth or the gingiva, therefore, present embodiment has adopted three groups of placed in-

line brush holders

11,12,13, and allow their certain angles that staggers, be to stagger 15 ° mutually in the present embodiment; When wherein one group of brush holder is in the backhaul state, also has other group brush holders to contact, thereby can allow this group brush holder empty avoiding when backhaul with tooth or gingiva; In like manner, in other embodiments, also can adopt and organize the brush holders of connecting more, and get over for a long time when the brush holder group number that adopts, when its drive bristle was brushed teeth with backhaul in turn, its simulation was better along brushing effects; Simultaneously, another benefit of this structure is to make the load of motor more even; The sensation in oral cavity also can be more comfortable.

Referring to Fig. 5 and Fig. 6, aforesaid bent axle 16 is the hardwares by the one bending.

Referring to Fig. 7, Fig. 8 and Fig. 9, an end of described gyroaxis 17 is used for connecting in order to transmit the structure 19 of moment of torsion with the actuating device of electric toothbrush body, is a projection 24 that is provided with at its end face; In this protruding shape present embodiment is " ten " font, can be " Y " or " D " shape among other embodiment; The other end of described gyroaxis 17 is provided with a hole and blocks described bent axle 16.

As the identical or proximate structure of this utility model the foregoing description, resulting other electric toothbrush heads are all within this utility model protection domain.

Claims

1. electric toothbrush head, it comprises driving and actuating devices such as a brush body, motor, it is characterized in that, it comprises that also at least one group of brush holder, a support, a profile that is implanted with bristle is bent axle, a fixed axis and the single-revolution axle of " several " shape; Described brush body is provided with a pit, and described support, bent axle, fixed axis, gyroaxis and brush holder all are arranged in this pit; This pit front end is provided with two respectively in order to the hole of an end of fixed crankshaft and fixed axis, and its rear end is provided with one and is used for the through hole that is locked this electric toothbrush head on the electric toothbrush main body and holds gyroaxis; One end of described gyroaxis is provided with one and is used for connecting in order to transmit the structure of moment of torsion with the actuating device of electric toothbrush main body, and its other end blocks bent axle and transmits moment of torsion; One end of described fixed axis is fixed in the set hole of support, and the other end is fixed in the set hole of described brush body front end; Described brush holder is provided with a long waist shaped through hole, and is sheathed on the described fixed axis by this through hole, and this through hole can slide relatively with axle; Be with described bent axle in another hole of described brush holder; One end of this bent axle snaps in described gyroaxis, and its other end inserts in the hole of described brush body front end, and eccentric segment inserts in the hole set on the brush holder in the middle of this bent axle.

2. electric toothbrush head according to claim 1, it is characterized in that, it comprises two groups or the brush holder that is implanted with bristle of organizing more, and the corresponding brush holder of described bent axle profile is two sections or end to end " several " shape of multistage, and described each brush holder is connected successively, is set in respectively on the eccentric segment of every section bent axle.

3. electric toothbrush head according to claim 2 is characterized in that, described bent axle is the hardware by the one bending.

4. electric toothbrush head according to claim 1 and 2 is characterized in that, an end of described gyroaxis is used for connecting in order to transmit the structure of moment of torsion with the actuating device of electric toothbrush main body, is a projection that is provided with at its end face; This protruding shape can be ten, one of Y or D shape.