CN102688108B

CN102688108B - Brush head-replaceable electric toothbrush

Info

Publication number: CN102688108B
Application number: CN201210191292.2A
Authority: CN
Inventors: 周开荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-12
Filing date: 2012-06-12
Publication date: 2014-11-19
Anticipated expiration: 2032-06-12
Also published as: CN102688108A

Abstract

The invention relates to a brush head-replaceable electric toothbrush which comprises a brush handle and a brush head, wherein a pair of meshed driving gear and driven gear are mounted at the head part of the brush handle; a motor for driving the brush head to rotate and a power module electrically connected with the motor are also mounted in the brush handle; an output shaft of the motor is connected with a worm meshed with the driving gear; and a rotation shaft of the driving gear is in movable detachable connection with the lower end part of the brush head, and a rotation shaft of the driven gear is in movable detachable connection with the upper end part of the brush head, so that the upper end part and the lower end part of the brush head rotate in opposite directions respectively. In the brush head-replaceable electric toothbrush provided by the invention, the rotation shafts of two gears are driven to rotate by the motor and the worm so as to drive the brush head to rotate, wherein the rotation is relatively slow, and the gum is not hurt; moreover, the bristles on the brush head are clean and have large cleaning area and high efficiency; and meanwhile, the brush head can be regularly replaced, thus the cost of repurchasing the whole electric toothbrush is saved.

Description

A kind of electric toothbrush of brush head changeable

Technical field

The present invention relates to a kind of electric toothbrush of brush head changeable.

Background technology

Electric toothbrush more can thoroughly remove dental plaque, reduce gingivitis and gingival hemorrhage compared to ordinary toothbrush, it passes through fast rotational, make bristle produce dither, toothpaste is resolved into trickle foam by moment, deeply clean teeth space, the vibration of bristle simultaneously can promote the blood circulation in oral cavity, and gingiva tissue is had to beyond thought massage effect.But the medium position that electric toothbrush is in the market brush can rotatablely move, rotating mechanism generally adopts two bevel gears that are meshed of motor direct-drive, because rotary speed is too fast, is therefore easy to damage gingiva, and clean area is less, cleaning efficiency is too low.

Summary of the invention

In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of electric toothbrush that can not damage the large and brush head changeable that efficiency is high of gingiva, clean area.

To achieve these goals, technical scheme of the present invention is: a kind of electric toothbrush of brush head changeable, comprise brush holder and brush, the head of described brush holder is provided with a pair of driving gear being meshed and driven gear, the power module that motor for driving brush rotation is also installed in described brush holder and is electrically connected with motor, the output shaft of described motor is connected with the worm screw being meshed with driving gear; The bottom activity releasable connection of the rotating shaft of described driving gear and brush, the upper end activity releasable connection of the rotating shaft of described driven gear and brush, make the upper end of brush and bottom respectively opposite direction rotatablely move.

Further, on described brush, offer the first through hole matching with a rotating shaft and the second through hole matching with another rotating shaft.

Further, described rotating shaft is Z-shaped axle, and one end of described rotating shaft is positioned at the locating slot on brush holder, and the other end of described rotating shaft is provided with for blocking brush so that the protruding cap of changing brush head more.

Further, described motor is direct current generator, and described power module is aneroid battery, lithium battery or accumulator.

Further, on described brush holder, be provided with the power control switch opening and closing for controlling motor.

Compared with prior art, the present invention has the following advantages: the electric toothbrush of this brush head changeable drive the rotation of two rotary gear shafts by motor and worm screw so that drive the upper end of brush and bottom respectively opposite direction rotatablely move, not only worm and wormwheel deceleration transmission greatly reduces the rotary speed of brush, can not hurt gingiva, and the clean area of bristle on brush is large, clean and efficiency is high, can also regularly replace brush, saved the expense of again purchasing whole electric toothbrush simultaneously.

Below in conjunction with drawings and Examples, the present invention is further elaborated.

Brief description of the drawings

Fig. 1 is the organigram of the embodiment of the present invention.

Fig. 2 is the organigram of brush holder.

Fig. 3 is the organigram of brush.

Fig. 4 is the motion schematic diagram of two rotating shafts.

In figure: 1-brush holder, 1-1-locating slot, 2-brush, 3-driving gear, 4-driven gear, 5-motor, 5-1-output shaft, 6-power module, 7-worm screw, 8-rotating shaft, the protruding cap of 8-1-, 9-the first through hole, 10-the second through hole, 11-power control switch.

Detailed description of the invention

With reference to figure 1 ~ 4, a kind of electric toothbrush of brush head changeable, comprise brush holder 1 and brush 2, the head of described brush holder 1 is provided with a pair of driving gear being meshed 3 and driven gear 4, in described brush holder 1, be also provided with for driving the motor 5 that brush 2 rotates and the power module 6 being electrically connected with motor 5, the output shaft 5-1 of described motor 5 is connected with the worm screw 7 being meshed with driving gear 3; The rotating shaft 8 of described driving gear 3 and the bottom activity releasable connection of brush 2, the rotating shaft 8 of described driven gear 4 and the upper end activity releasable connection of brush 2, make the upper end of brush 2 and bottom respectively opposite direction rotatablely move.

In the present embodiment, described rotating shaft 8 is Z-shaped axle, on described brush 2, offer the first through hole 9 matching with a rotating shaft 8 and the second through hole 10 matching with another rotating shaft 8, one end of described rotating shaft 8 is positioned at the locating slot 1-1 on brush holder 1, and the other end of described rotating shaft 8 is provided with for blocking brush 2 so that the protruding cap 8-1 of changing brush head 2 more.When brush 2 is installed, two rotating shafts 8 are respectively through blocking brush 2, easy accessibility by protruding cap 8-1 after the first through hole 9, the second through hole 10.

In the present embodiment, described motor 5 is direct current generator, and described power module 6 is aneroid battery, lithium battery or accumulator etc., user's replaceable battery or charge; On described brush holder 1, be provided with the power control switch 11 opening and closing for controlling motor 5, described power control switch 11 can be arranged at the bottom of brush holder 1, can avoid user to be not intended in use encounter power control switch 11, but be not limited to this.

Work process of the present invention is as follows: motor 5 drives worm screw 7 to rotate, worm screw 7 drives driving gear 3 to rotate, driving gear 3 drives driven gear 4 to rotate backward, driving gear 3 and driven gear 4 drive rotating shaft 8 separately to rotate, the rotating shaft 8 of driving gear 3 drives the bottom of brush 2 to be rotated counterclockwise, the rotating shaft 8 of driven gear 4 simultaneously drives the upper end of brush 2 to turn clockwise, and then the bristle of realizing on brush 2 is cleared up tooth.

Especially, it should be noted that, can certainly be that dextrorotation is done in the bottom of brush 2 then upper end is rotated counterclockwise.A brush is realized clockwise and counterclockwise synchronous rotary simultaneously, cleaning teeth better, and cleaning effect is better.

The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.

Claims

1. the electric toothbrush of a brush head changeable, comprise brush holder and brush, it is characterized in that: the head of described brush holder is provided with a pair of driving gear being meshed and driven gear, the power module that motor for driving brush rotation is also installed in described brush holder and is electrically connected with motor, the output shaft of described motor is connected with the worm screw being meshed with driving gear; The bottom activity releasable connection of the rotating shaft of described driving gear and brush, the upper end activity releasable connection of the rotating shaft of described driven gear and brush, make the upper end of brush and bottom respectively opposite direction rotatablely move; On described brush, offer the first through hole matching with a rotating shaft and the second through hole matching with another rotating shaft, described rotating shaft is Z-shaped axle, one end of described rotating shaft is positioned at the locating slot on brush holder, and the other end of described rotating shaft is provided with for blocking brush so that the protruding cap of changing brush head more.

2. according to the electric toothbrush of a kind of brush head changeable described in claim 1, it is characterized in that: described motor is direct current generator, described power module is aneroid battery, lithium battery or accumulator.

3. according to the electric toothbrush of a kind of brush head changeable described in claim 1 or 2, it is characterized in that: on described brush holder, be provided with the power control switch opening and closing for controlling motor.