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Brush head assembly and electric toothbrush

A component and brush head technology, applied in dentistry, brushes, brush bodies, etc., can solve the problems of difficult insertion and removal, insufficient locking force of the drive shaft, and falling off of the brush head assembly, so as to achieve smooth and convenient stroke and convenient insertion and removal process. and smooth effect

Pending Publication Date: 2019-08-23
胡斐凡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the interface between the brush head assembly and the drive shaft in the prior art, the drive shafts have a long distance between each other when they are plugged and pulled out, which makes it difficult to plug in and out, and it is easy to cause the drive shaft to be plugged in multiple times. The locking force on the shaft is insufficient, the torque transmission is problematic, and the brush head assembly falls off. The invention provides a brush head assembly and an electric toothbrush

Method used

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  • Brush head assembly and electric toothbrush
  • Brush head assembly and electric toothbrush
  • Brush head assembly and electric toothbrush

Examples

Experimental program
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Embodiment

[0060] like figure 1 As shown, an electric toothbrush is disclosed in this example, and the electric toothbrush includes a handle assembly 2 and a brush head assembly 1; , a control board and a battery; the drive shaft 21 of the motor protrudes from the housing. The brush head assembly 1 can be inserted on the drive shaft 21. The housing is generally also provided with a power switch 22, an indicator light 23, etc., because they are not the improved parts in this example, so they are not described in detail.

[0061] The core inventive idea in this example is to improve the brush head assembly 1 so that it can be better locked and connected with the drive shaft 21. The brush head assembly 1 disclosed in the present application will be further specifically explained below in conjunction with the accompanying drawings.

[0062] like figure 2 , image 3 As shown, the brush head assembly 1 disclosed in this example includes a brush head body 11, a coupling member 13 and a lo...

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Abstract

In order to solve the problem that there are defects in a joint mode of a brush head assembly and a driving shaft in the prior art, the invention provides a brush head assembly and an electric toothbrush. The brush head assembly comprises a brush head body, a joint component and a locking core; the tail end of the brush head body of the brush head assembly is provided with a component assembly cavity, the joint component is installed in the component assembly cavity, the deformable locking core with a pivot stress part and force application parts applying elastic force to both ends is insertedin the component assembly cavity and makes most stroke in the insertion process of the driving shaft very smooth and convenient, the pressure is generated to lock the driving shaft only when the twoforce application parts are in contact with the driving shaft at last, and locking generated by the elastic force can be maintained for a long time. The torque transmission and axial retention capability of the brush head assembly is ensured.

Description

technical field [0001] The invention relates to the field of electric toothbrushes, in particular to the field where the brush head assembly and the drive shaft are locked to complete the torque transmission and axial holding functions of the drive shaft. Background technique [0002] As we all know, an electric toothbrush includes a handle assembly and a brush head assembly. The handle assembly includes a casing and a battery, a motor, and a control board that are built in the casing, and a drive shaft is sealed from the front end of the casing. It is detachably connected with the brush head assembly. When using an electric toothbrush, the drive shaft of the handle assembly swings back and forth at high frequency along the axis, driving the brush head assembly inserted thereon to swing back and forth thereupon, driving the bristles on the brush head assembly to swing to clean teeth. This requires sufficient on-shaft locking force to transmit torque, yet easy removal of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C17/34
CPCA61C17/34A61C17/222A61C17/3481A46B5/0095A46B9/04A46B13/02A61C17/221
Inventor 胡斐凡胡建坤
Owner 胡斐凡
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