Electric toothbrush

Abstract

The invention discloses an electric toothbrush. The electric toothbrush comprises a shell and a brush head, a motor assembly is arranged in the shell, the motor assembly comprises a motor, a power supply device and a key for controlling the motor to be started or stopped, a motor shaft is arranged on the motor towards the brush head, a brush handle is arranged at the lower end of the brush head, amotor shaft penetrates through the brush handle and is mechanically connected with the brush head, the brush head comprises a brush head shell, a brush head bottom cover and a plurality of brush headassemblies which are evenly arranged, a driving bevel gear is arranged at the bottom of the brush head shell, the motor shaft penetrates through the brush handle and is connected with the driving bevel gear, a transversely-distributed crankshaft is rotatably connected to the lower end portion of the brush head bottom cover, the driving bevel gear on the crankshaft is meshed with a driven bevel gear, the bottoms of the brush head assemblies are connected to the eccentric part of the crankshaft in a sleeving mode, and the brush head assemblies linearly move up and down along the brush head bottom cover. The brush head of the electric toothbrush linearly moves up and down, so that gaps among teeth can be cleaned, the teeth can be cleaned thoroughly, the teeth cannot be impacted when the electric toothbrush is used, and damage to the surfaces of the teeth is greatly reduced.

Description

technical field [0001] The invention relates to an electric toothbrush. Background technique [0002] In recent years, people's awareness of oral hygiene has increased, and they have paid special attention to the health protection of teeth. Toothbrush is an important tool for cleaning teeth. Compared with ordinary toothbrushes, electric toothbrushes have better cleaning performance. More and more users choose electric toothbrushes. [0003] The electric toothbrushes on the market all use a rotating method to turn the bristles, which cannot be used to clean deeply between the teeth. At the same time, when using a rotating electric toothbrush, the bristles constantly hit the teeth during high-speed rotation, which has a poor user experience and is easy to damage the tooth surface. . Contents of the invention [0004] In view of the deficiencies in the background technology, the technical problem to be solved by the present invention is to provide an electric toothbrush, wh...

AI Technical Summary

Problems solved by technology

[0003] The electric toothbrushes on the market all use a rotating method to turn the bristles, which cannot be used to clean deeply between the teeth. At the same time, when using a rotating electric toothbrush, the bristles constantly hit the teeth during high-speed rotation, which has a poor user experience and is easy to damage the tooth surface.

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