Double-brush electric toothbrush

Abstract

The invention relates to a double-brush electric toothbrush which comprises a brush head and a brush frame, wherein the brush head comprises two brush heads which are connected through a connecting rod, discs are respectively arranged in the brush heads connected with the connecting rod and are respectively provided with a limiting groove and a U-shaped groove, a sliding block, an eccentric shaft, a bearing, an eccentric wheel, a brush head connecting shaft, a brush head shaft and a motor connecting shaft which are connected into a whole body are installed in the brush head frame, the motor connecting shaft is inserted into one end of the brush head shaft, one end of the eccentric shaft is inserted into a small hole on the eccentric wheel, the other end of the eccentric shaft is provided with the sliding block which is in rolling connection with each U-shaped groove of each disc, front and back circular grooves are arranged at the front end of the brush frame, a through hole is arranged on the side surface of the front groove, a limiting shaft is inserted into the through hole, a center hole is respectively arranged at the bottom in the two grooves, one ends of two center shafts are respectively inserted into the two center holes, the other ends of the two center shafts are in cottage grafting with the center holes on the discs, and a locking ring tightly presses the center shafts. By utilizing the double-brush electric toothbrush, the service life is prolonged, and noises are lowered; and meanwhile, the double-brush electric toothbrush has the advantages of simple structure, low cost, strong practicability and the like.

Description

technical field [0001] The invention relates to an electric toothbrush, in particular to an electric toothbrush with double brush heads. Background technique [0002] At present, the electric toothbrushes in the prior art all have a single brush head structure. This structure cannot effectively clean the teeth thoroughly due to the small contact area between the toothbrush and the teeth; The brush head rotates because of the block. This structure will cause serious wear and tear due to the sliding connection of the two hardware of the steel ball and the groove block. Eventually, the swing angle of the brush head will become smaller and smaller until it stops rotating. , reducing the service life of the toothbrush. Contents of the invention [0003] In view of the deficiencies in the prior art above, the present invention relates to an electric toothbrush with double brush heads. It includes a brush head and a brush holder. The brush head includes two circular brush heads...

AI Technical Summary

Problems solved by technology

[0002] At present, the electric toothbrushes in the prior art all have a single brush head structure, which cannot effectively and thoroughly clean the teeth due to the small contact area between the toothbrush and the teeth; The brush head rotates because of the block. This structure will cause serious wear and tear due to the sliding connection of the two hardware of the steel ball and the groove block, and eventually the swing angle of the brush head will become smaller and smaller until it stops rotating. Therefore , reducing the service life of the toothbrush

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