CN101642388A

CN101642388A - Brush head device for electronic toothbrush

Info

Publication number: CN101642388A
Application number: CN200810146413A
Authority: CN
Inventors: 黄拔梓
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-29
Filing date: 2008-08-28
Publication date: 2010-02-10
Also published as: WO2009094820A1

Abstract

The invention discloses a brush head device for an electronic toothbrush. The device comprises a rotating shaft and a toothbrush head, wherein a brush head plug is arranged between the rotating shaftand the toothbrush head, and is provided with an inner cavity which corresponds to the shape of the upper end of the rotating shaft; the upper end of the inner cavity wall is provided with a flat partof the inner cavity; the upper end of the rotating shaft corresponding to the flat part of the inner cavity is provided with a flat part of the rotating shaft; the lower end of the inner cavity wallis provided with a first hook flange protruding inwards; the circumference surface of the rotating shaft corresponding to the first hook flange is provided with a first hook groove recessing inwards;and the first hook flange and the first hook groove are closely buckled. The wearable brush head plug arranged between the metal rotating shaft and the brush head of the hard plastic toothbrush solvesthe problem that an electric toothbrush has large abrasion all the time for a long time to cause the joint of the toothbrush head and the upper end of the rotating shaft to get loose, and improves the service life and the quality of the electronic toothbrush.

Description

Brush head device for electronic toothbrush

Technical field

The present invention relates to a kind of electric toothbrush, relate in particular to a kind of brush head device for electronic toothbrush.

Background technology

Present electric toothbrush is by motor, rotating shaft, toothbrush head, parts such as tooth handle are formed, its toothbrush head lower end is provided with hollow sleeve, direct socket is the rotating shaft front end again, by rotating shaft whirling vibration, drive toothbrush head front end vibration and sway, reach the purpose of automated cleaning tooth, but there is following defective in such socket mode, the hollow sleeve of toothbrush head lower end is by harder plastic material manufacturing, rotating shaft is by the metal material manufacturing, and the hollow sleeve of toothbrush head lower end is rigid the connection with rotating shaft, secular use meeting gradually with the hollow sleeve inner wall abrasion, make that the socket of toothbrush head and rotating shaft is loosening, therefore can influence the comfort level and the service life of toothbrush head.

Summary of the invention

Purpose of the present invention exists, and overcomes the above-mentioned defective of prior art, and above-mentioned toothbrush head is improved, and a kind of brush head device for electronic toothbrush of wear-resistant, long service life is provided.

For achieving the above object, technical scheme provided by the invention is as follows: construct a kind of brush head device for electronic toothbrush, comprise a rotating shaft, one toothbrush head, be provided with a brush plug between described rotating shaft and the toothbrush head, it is irregular coniform that the vertical section of described brush plug is substantially, this brush plug is provided with and the corresponding inner chamber of rotating shaft upper end shape, this internal chamber wall upper end is provided with and prevents that the brush double swerve from producing the flat position of inner chamber of noise, be provided with the flat position of rotating shaft with corresponding rotating shaft upper end, the flat position of this inner chamber, flat position of described inner chamber and rotating shaft closely clamping of flat position, this internal chamber wall lower end is provided with to first a projecting inward button bit flange, described and the corresponding shaft circumference face of the first button bit flange is provided with the inwardly first recessed button bit groove, described first button bit flange and the tight snapping of the first button bit groove are with the close described rotating shaft upper end that snaps onto of described brush jam-pack; The lower end, outer face of described brush plug is provided with the second button bit flange of outside protrusion, is provided with the outwards second recessed button bit groove, the described second button bit flange and the tight snapping of the second button bit groove with the corresponding toothbrush head internal chamber wall of this second flange lower end.

Described brush plug adopts the high-abrasive material manufacturing, the fretting wear that produces in the time of can reducing by harder metal rotating shaft with harder plastic material vibration and sway.

Usefulness of the present invention is: by between metal rotating shaft and harder plastic cement toothbrush head attrition resistant brush plug being set, solve the problem that the electric toothbrush wearing and tearing of existence always for a long time cause toothbrush head and junction, rotating shaft upper end to get loose more greatly, improved the service life and the quality of electric toothbrush.

Description of drawings

Fig. 1 is a sectional structure chart of the present invention;

Fig. 2 is Figure 1A partial enlarged drawing.

The specific embodiment

Consult Fig. 1, a kind of brush head device for electronic toothbrush shown in Figure 2, comprise rotating shaft 1, toothbrush head 2, be provided with brush plug 3 between this rotating shaft 1 and the toothbrush head 2, it is irregular coniform that the vertical section of this brush plug 3 is substantially, this brush plug 3 is provided with and the corresponding inner chamber 30 of rotating shaft 1 upper end shape, this internal chamber wall upper end is provided with and prevents that the brush double swerve from producing the flat position 31 of inner chamber of noise, be provided with the flat position 11 of rotating shaft with corresponding rotating shaft upper end, the flat position of this inner chamber, flat position 31 of described inner chamber and the flat position 11 tight clampings of rotating shaft, this internal chamber wall lower end is provided with to first a projecting inward button bit flange 32, be provided with the inwardly first recessed button bit groove 12 with corresponding rotating shaft 1 periphery of the first button bit flange, the first button bit flange 32 and the first button bit groove, 12 tight snappings closely snap onto rotating shaft 1 upper end with brush plug 3.

The lower end, outer face of brush plug 3 is provided with the second button bit flange 34 of outside protrusion, be provided with the outwards recessed second button bit groove, 24, the second button bit flanges 34 and the second button bit groove, 24 tight snappings with corresponding toothbrush head 2 inner chambers of this second flange 22 lower end inwalls.

Brush plug 3 adopts the high-abrasive material manufacturings, and the fretting wear that produces in the time of can reducing by harder metal rotating shaft 1 with harder plastic cement toothbrush head 2 vibration and sways prolongs the service life of electric toothbrush.

The correlation technique content of drive motor means of the present invention sees the applicant's patent of invention 200620120759.9 for details, just repeats no more at this.

Above-described only is principle of the present invention and preferred embodiment.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, also should be considered as belonging to protection scope of the present invention.

Claims

1, a kind of brush head device for electronic toothbrush, comprise a rotating shaft, one toothbrush head, it is characterized in that: be provided with a brush plug between described rotating shaft and the toothbrush head, it is irregular coniform that the vertical section of described brush plug is substantially, this brush plug is provided with and the corresponding inner chamber of rotating shaft upper end shape, this internal chamber wall upper end is provided with the flat position of inner chamber, be provided with the flat position of rotating shaft with corresponding rotating shaft upper end, the flat position of this inner chamber, flat position of described inner chamber and rotating shaft closely clamping of flat position, this internal chamber wall lower end is provided with to first a projecting inward button bit flange, and the described and corresponding shaft circumference face of the first button bit flange is provided with the inwardly first recessed button bit groove.

2, brush head device for electronic toothbrush according to claim 1 is characterized in that: described first button bit flange and the tight snapping of the first button bit groove.