CN2433865Y

CN2433865Y - Electronic toothbrush

Info

Publication number: CN2433865Y
Application number: CN 99251539
Authority: CN
Inventors: 王树仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-26
Filing date: 1999-10-26
Publication date: 2001-06-13
Anticipated expiration: 2009-10-26

Abstract

The utility model provides an electric toothbrush. A galvanic battery serves as a power. A miniature motor drives a gear type retarding mechanism, and then the retarding mechanism is connected with a brush head through a drive shaft. The electronic toothbrush is characterized in that an enchasing shaft hole which is in the middle of a brush hair rod of a brush head is sheathed on a drive shaft which forms a triangle shape. The brush head is enchased in a brush head groove of a semi-ring casing. The columnar brush head of the electronic toothbrush rotatablely moves, which guarantees a scientific tooth brushing mode effectively for the people to clean up the residue along the tooth slit. The decayed teeth can be prevented. The electronic toothbrush is labor-saving and time-saving, and enhances the tooth brushing efficiency. The brush head groove of the semi-ring casing can prevent the soft tissue from being damaged in the mouth cavity. The inset type connecting mode of the brush head and the drive shaft can change the abraded brush head conveniently.

Description

Electric toothbrush

The utility model belongs to a kind of articles for daily use field of toothbrushes, specifically a kind of electric toothbrush.

Data shows according to statistics, and China's decayed tooth incidence of disease is 38%, and decayed tooth is how not thorough by removing teeth space residue, and swill is fermented in teeth space, produces acid, destroys the enamel of tooth, forms the cavity, symptoms such as generation is had a toothache, gum swelling.When ordinary toothbrush was brushed teeth, majority were uncomfortable along interdental brush, laterally came backwash and adopt, and time-consuming, effort and to remove the teeth space residue not thorough also can cause mouth disease because of brush rod grazing gum.

The purpose of this utility model is to provide a kind of and improves brushing efficiency, guarantee to remove residue, effectively prevent the electric toothbrush that decays tooth along teeth space.

For achieving the above object, the technical scheme that the utility model is taked is: this electric toothbrush is power supply with the dc-battery, by minitype motor driving gear type reducing gear, be connected with brush through power transmission shaft again, it is characterized in that brush is bumped in the brush groove of semi-circular housing on the triangle power transmission shaft of edge shaft hole sleeve in brush holder support of bristle bar central authorities of cylindrical brush.

By the electric toothbrush that such scheme manufactures and designs, the motion of changeable type cylindrical brush head rotating has guaranteed the science teeth brushing way of people along teeth space removing residue effectively, prevents decayed tooth, and is time saving and energy saving, improved brushing efficiency; Semi-circular housing brush groove can be avoided the damage of oral soft tissue; Brush and power transmission shaft inset type connected mode can be changed the brush that is worn easily.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is the brush-head structure schematic diagram;

Fig. 2 is the internal structure schematic diagram of electric toothbrush;

Fig. 3 is the cutaway view of shell;

Fig. 4 is the bonnet schematic diagram of electric toothbrush.

Among the figure: the 1-axis hole; 2-brush groove; 3-brush power transmission shaft; The 4-brush head axis; 5-bristle bar; The 6-bristle; 7-inlays axis hole; The 8-waterproof washer; The 9-power transmission shaft; The 10-brush holder support; The 11-driving gear; The 12-driven gear; The 13-switch; The 14-fixed head; 15-fixed head screw hole; The 16-motor; The 17-battery; 18-covers hook; 19-bonnet screw hole; The 20-battery case lid; The 21-dog hole; The 22-bonnet.

This electric toothbrush is a power supply with No. seven batteries 17 of the joint of two in the battery case of packing into, drives master and slave gear 11,12 reducing gears by micromotor 16, is connected with cylindrical brush through power transmission shaft 9 again.The connection of brush can be earlier be enclosed within the edge axis hole 7 of the central authorities of brush bristle bar 5 on the triangle power transmission shaft 9, brush head axis 4 is bumped in the axis hole 1 again, and brush groove 2 is semi-circular housing, is bumped into brush, and brush exposes 1/3, is provided with waterproof washer 8 between brush and the drive link 9.The fixed head 14 that supports driven gear 12 and power transmission shaft 9 is fixed on the housing middle part by screw, and both positive and negative polarity change type switch 13 is located at position, housing thumb place, and it is pushed away forward, and brush turns clockwise; To pusher, be rotated counterclockwise; In the middle of placing, brush stops the rotation.Toothbrush bonnet 22 is fixed on the brush holder end by screw, presses battery case lid 20, and fastening dog hole 21 by lid hook 18 can close.For ease of maintenance, fixed head 14, toothbrush bonnet 22 are detachable.

The bristle 6 of producing brush should be selected the material of softness, good springiness for use, and bristle bar 5, brush groove 2 and brush holder support 10 should be firm, and be nonelastic, wear-resisting; Waterproof washer 8 set between brush and the drive link 9 is filled with butter with lower brush shaft 10 planted agents, to reduce frictional force between power transmission shaft 9 and the brush holder support 10 and waterproof; Switch 13 and the bonnet 22 places water cushion circle of also should setting up defences.

Claims

1, a kind of electric toothbrush, with dc-battery (17) is power supply, by micromachine (16) driven gear formula reducing gear (11,12), be connected with brush through power transmission shaft (9) again, the edge axis hole (7) that it is characterized in that bristle bar (5) central authorities of cylindrical brush is enclosed within on the interior triangle power transmission shaft (9) of brush holder support (10), and brush is bumped in the brush groove (2) of semi-circular housing.