CN2579370Y

CN2579370Y - Electric tooth brush

Info

Publication number: CN2579370Y
Application number: CN 02286936
Authority: CN
Inventors: 秦旭东
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-05
Filing date: 2002-11-05
Publication date: 2003-10-15
Anticipated expiration: 2012-11-05

Abstract

The utility model relates to an electric toothbrush which is a toothbrush utilizing a motor to drive brush bristles to rotate, particularly to an electric toothbrush which can make rotary brush bristles pass along the directions of tooth gaps. The utility model comprises a housing with a bottom cover and a waterproof ring, a battery, a motor, a transmission rod connected with an output shaft of the motor, brush bristles connected to the transmission rod, a protecting cover, a switch, a control circuit board, an induction charging coil and a reversing switch, wherein the battery and the motor are installed in the housing, the protecting cover and the switch are installed on the housing, and the control circuit board, the induction charging coil and the reversing switch can make an output shaft of the motor carry out forward and reverse rotation. The utility model is characterized in that a speed reducing transmission device is arranged between the motor and the transmission rod; the electric toothbrush of the utility model can make the rotating speed of the speed reducing transmission device be proper, and the brush bristles are not limited in one tooth gap at the time of rotation; thus, the utility model has the characteristics that the tooth cleaning effect is good, teeth can not be abraded, the tooth brushing is comfortable, the brush bristles can be conveniently replaced, the series toothbrushes with different rotating speed can be manufactured according to people with different ages, different conditions of teeth, different habits or different sexes, etc.

Description

Electric toothbrush

Technical field

This utility model relates to a kind of toothbrush that rotates with motor drive brush hair, the electric toothbrush that especially a kind of bristle that can make rotation moves along teeth space.

Background technology

Chinese patent 90225728. disclosed a kind of electric toothbrushes, it contains shell, in the enclosure battery and motor, the turning cylinder that is connected with motor output shaft are installed, and is installed in guard shield and switch on the shell, is installed in the bristle on the turning cylinder; Its shortcoming is: 1) the cylindricality moving runner at its electrical machinery and brushing hair place directly connects, therefore the rotating speed of bristle is identical with rotating speed of motor, and this rotating speed is often higher, its moment of torsion is not enough, cause bristle when brushing teeth, normally to rotate, also cause the damage of bristle easily tooth, periodontal soft tissue etc.; 2) because of the needs of bristle chimeric connection on the cylindricality moving runner, and perforate on wheel, this perforate is subjected to the restriction of wheel diameter again, so it does not circumferentially adorn several tufts, cause bristle sparse, influence toothbrushing effect; If the diameter of overstriking cylindricality moving runner, that will shorten the diameter of every tuft, otherwise can make bristle diameter too big and do not enter the oral cavity, and perhaps tuft length is too short, make to brush teeth uncomfortablely, and reduce toothbrushing effect again; 3) its bristle is the axially spaced-apart setting along the column type moving runner, and every tuft is all perpendicular to the cylindricality moving runner, and therefore when brushing teeth, each tuft can only be confined to rotate in the teeth space, and is bigger to the wearing and tearing of tooth; 4) its structure also can't be changed bristle, so in case bristle has been broken, and whole toothbrush will go out of use, so not too economical.

Summary of the invention

This utility model is to solve above-mentioned problems of the prior art, and a kind of electric toothbrush is provided, so that it has effectively cleaning teeth, not damage tooth and soft tissue on every side thereof again simultaneously, and characteristics such as rational in infrastructure, conveniently replaced bristle.

This utility model electric toothbrush, it contain band bottom and water proof ring shell, install in the enclosure battery with motor, the drive link that is connected with motor output shaft, be connected the bristle on the drive link, be installed in guard shield and switch on the shell, with and can make motor output shaft do the control circuit board of forward and reverse rotation, the induction towards electric coil and two-direction switch, it is characterized in that: it also has speed reduction gearing between motor and drive link.So that the rotating speed of bristle is controlled at per minute 150 right side of turning left, thereby reduce wearing and tearing to tooth.

This utility model electric toothbrush, its speed reduction gearing is the planetary reduction gear actuating device, this device contain chimeric fixed annulus, an off-centre that is connected on the housing be installed in planetary gear on the motor output shaft, one its contain can with the main shaft of the ring gear of planet crop rotation engaged transmission.

This utility model electric toothbrush, each tuft of forming bristle all vertically is fixed in the circumferential of silk axle, and is arranged in order the spiral lamellar that distributes vertically between the tuft.So that each tuft of bristle passes through teeth space successively in rotation, rather than rest on the teeth space.

This utility model electric toothbrush, the two ends of the silk axle at its bristle place be respectively in the axis hole of kink on drive link and sheath, and sheath is removable chimeric the connection with shell, has sealing ring on its faying face.Making things convenient for the replacing of bristle, and anti-sealing infiltrates the shell from faying face.

The beneficial effects of the utility model are: after 1) being provided with speed reduction gearing between motor and drive link, the rotary speed of bristle can be reduced to about 150 rev/mins by 1400 or 2800 rev/mins that have now by the direct electric toothbrush that drives of direct current generator, therefore when effectively preventing to brush teeth to the too much wearing and tearing of tooth, and by slowing down, also can add high pulling torque to reach the necessary dynamics 2 of brushing teeth) by setting to the different speed ratios of speed reduction gearing, electric toothbrush also can be made into different rotating speed series, to adapt to the different ages, different tooth conditions, the people's of different customs or different sexes needs; 2) the spiral laminated structure of tuft can be avoided bristle to stagnate in teeth space, but pass through from each teeth space successively, its clean one's teeth effective, human body sensory is comfortable, and is also few to the wearing and tearing of tooth; 3) this utility model electric toothbrush is rational in infrastructure, easy to use, and its consumable accessory, can be connected by removable between sheath and the shell as bristle upgrade, battery then changes by bottom, so both economical, and service life is longer.

Description of drawings

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

Fig. 2 is that A among Fig. 1 is to view.

Label declaration among the figure: 1-sheath; The 2-bristle; 2a-silk axle; The 3-drive link; The 3a-sealing ring; The 4-main shaft; The 4a-ring gear; The 5-motor; The 5a-motor output shaft; The 6-shell; The 7-battery; The 8-water proof ring; The 9-bottom; The 10-induction is towards electric coil; The 11-control circuit board; The 12-switch; The 13-two-direction switch; The 14-speed reduction gearing; The 14a-fixed annulus; The 14b-planetary gear; The 15-waterproof membrane.

The specific embodiment

Embodiment 1. present embodiment electric toothbrushes, its structure can be seen from Fig. 1 and Fig. 2, it contain band bottom 9 and water proof ring 8 shell 6, install in the enclosure battery 7 with motor 5, the drive link 3 that is connected with motor output shaft 5a, be connected the bristle 2 on the drive link, be installed in guard shield 1 and switch 12 on the shell, and can make motor output shaft do the control circuit board 11 of forward and reverse rotation, the induction towards electric coil 10, two-direction switch 13 and be arranged on motor 5 and drive link 3 between speed reduction gearing 14.

When using the present embodiment electric toothbrush, open switch 12 earlier and set the position of two-direction switch 13, motor 2 runnings, motion on it and power are exported from motor output shaft 5a, and by passing to drive link 3 after speed reduction gearing 14 decelerations, make the bristle running that is installed on the drive link.

Embodiment 2. present embodiment electric toothbrushes, its structure can be seen from Fig. 2, different is with embodiment 1 for it: speed reduction gearing 14 is planetary reduction gear actuating devices, and this device contains chimeric fixed annulus 14a, an off-centre that is connected on the housing and is installed in planetary gear 14b on the motor output shaft 5a, one it contains the main shaft 4 that can make the ring gear 4a of engaged transmission with planetary gear 14b.Wherein planetary gear 14b is a duplicate gear, it is on motor output shaft during eccentric turnover, its right side joins tooth and makes gear motion with fixed annulus 14a, and its Left-wing Federation tooth simultaneously and ring gear 4a engagement, thereby driven main shaft 4 and then driven with the chimeric drive link that is connected 3 of main shaft and be contained in bristle 2 on the drive link.After the number of teeth of setting respectively on fixed annulus 14a, planetary gear 14b and the ring gear 4a, can realize the bristle retarded motion set, so that the rotating speed of bristle is controlled at per minute 150 right side of turning left, reduce wearing and tearing to tooth.

By the number of teeth on fixed annulus 14a, planetary gear 14b and the ring gear 4a is set, can obtain different speed reducing ratio, to realize the different bristle rotating speed series of electric toothbrush.

Embodiment 3. present embodiment electric toothbrushes, its structure can see from Fig. 2, and it is with embodiment 1 or 2 different is: each tuft of forming bristle is all vertical is fixed in silk axle 2a circumferentially, and be arranged in order the spiral lamellar that distributes vertically between the tuft.Tuft is affixed in the mode of kink at silk axle 2a, and tuft is one group of stainless filament.When brushing teeth, each tuft passes through teeth space successively in rotation, rather than rests on the teeth space.

Embodiment 4. present embodiment electric toothbrushes, its structure can be seen from Fig. 2, it is with

embodiment

1 or 2 or 3 different is: the two ends of silk axle 2a are respectively in the axis hole of kink on drive link 3 and sheath 1, and sheath 1 is removable chimeric the connection with shell 2, have two sealing ring 3a on its faying face, also can have waterproof membrane 15 between drive link 3 and shell 6, making things convenient for the replacing of bristle, and anti-sealing infiltrates the shell from faying face.

Claims

1, a kind of electric toothbrush, the shell (6), installation battery (7) in the enclosure that it contains band bottom (9) and water proof ring (8) with motor (5), the drive link (3) that is connected with motor output shaft (5a), be connected the bristle (2) on the drive link, be installed in guard shield (1) and switch (12) on the shell, and can make motor output shaft do the control circuit board of forward and reverse rotation (11), induction towards electric coil (10) and two-direction switch (13), it is characterized in that: it also has speed reduction gearing (14) between motor (5) and drive link (3).

2, electric toothbrush according to claim 1, it is characterized in that: said speed reduction gearing (14) is the planetary reduction gear actuating device, and this device contains chimeric fixed annulus (14a), an off-centre that is connected on the housing and is installed in planetary gear (14b) on the motor output shaft (5a), one it contains the main shaft (4) that can make the ring gear (4a) of engaged transmission with planetary gear (14b).

3, electric toothbrush according to claim 1 is characterized in that: each tuft of forming bristle (2) all vertically is fixed in the circumferential of silk axle (2a), and is arranged in order the spiral lamellar that distributes vertically between the tuft.

4, according to claim 1 or 3 described electric toothbrushes, it is characterized in that: the silk axle (2a) of said bristle, its two ends are respectively in the axis hole of kink on drive link (3) and sheath (1), and sheath (1) is removable chimeric the connection with shell (6), have sealing ring (3a) on its faying face.