A large swivel angle electric toothbrush head
An electric toothbrush and slewing angle technology, applied in dentistry, prosthodontics, cleaning teeth, etc., can solve the problems of short life, inflexible operation, small swing angle, etc.
Active Publication Date: 2019-10-29
英属处女岛沃辉有限公司
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Problems solved by technology
[0004] In order to solve the technical problems of inflexible operation existing in the existing electric toothbrush technology, traditional rotation is prone to dead angle, small swing angle, high noise and short lifespan, the present invention provides a large swivel angle electric toothbrush head with long service life
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Embodiment Construction
[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0023] Such as figure 1 , figure 2 As shown, the electric toothbrush head with a large rotation angle according to one embodiment of the present invention includes a brush rod 2, a rotatable brush plate 1 mounted on the head 21 of the brush rod through a shaft 5, and an eccentric rod 4 and the like.
[0024] see also Figure 4 , The eccentric rod 4 is obliquely installed in the cavity of the brush rod 2 . The eccentric rod 4 is rod-shaped with a large and small head, and the head of the eccentric rod 4 (i.e. figure 2 The small head) is inserted into the top end of the rotating shaft 41, and the rotating shaft 41 is obliquely inserted into the shaft hole of the head 21 of the brush rod 2 ( figure 2 Not marked); the central axis (O'-O') of the eccentric rod 4 and the central axis (O-O) of the brush rod 2 have an included angle of 1 to 5 d...
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The invention discloses a large-revolving-angle electric toothbrush head, which comprises a brush rod, a brush tray and an eccentric rod which is arranged in the brush rod in an oblique mode, wherein an eccentric inserting sleeve is arranged at one side of the head of the eccentric rod and a wear-resistant inserting sleeve is sandwiched, so that an inserting sleeve assembly device is constituted; an eccentric ball body is inserted in one side of the brush tray, and an arc-shaped sliding groove is formed in the other side of the brush tray; the brush tray is arranged on the head of the brush rod by virtue of a shaft and is limited by virtue of a locating pin which extends into the arc-shaped sliding groove; and the eccentric inserting sleeve device of the eccentric rod is in sliding fit to the eccentric ball body, so that the brush tray is driven to swing reciprocally. Therefore, the electric toothbrush provided by the invention can achieve interference fit through coordination of the eccentric inserting sleeve device and the eccentric ball body on the brush tray, and problems of conventional rotation that a dead angle can be caused easily and a swinging angle is small can be solved. The toothbrush head is simple in structure, flexible in rotation, large in swinging angle, low in noise and long in service life.
Description
technical field [0001] The invention relates to toothbrush articles, in particular to an electric toothbrush head with large rotation angle, flexible rotation, large swing angle, long service life and low noise. Background technique [0002] The appearance of electric toothbrush has made things convenient for people's life. At present, the main part of the electric toothbrush: the toothbrush head, is divided into two types according to the movement mode of the brush head: a linear reciprocating swing brush head and a reciprocating (circumferential rotation) brush head. And the reciprocating rotary brush head is divided into two kinds of basic mechanisms again: utilize connecting rod mechanism to realize reciprocating rotation and utilize eccentric mechanism to realize reciprocating rotation. [0003] The reciprocating brush head structure driven by the traditional eccentric structure has a simple structure and is limited by the shape of the brush rod. The conventional eccen...
Claims
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IPC IPC(8): A61C17/22A61C17/34
CPCA61C17/222A61C17/225A61C17/34A61C2204/00
Inventor 廖建明菅原敏雄王思逸
Owner 英属处女岛沃辉有限公司