一种可打磨牙齿的电动牙刷

Abstract

本实用新型公开了一种可打磨牙齿的电动牙刷，包括牙刷主体和牙刷头，牙刷主体包括主壳体和驱动电机，牙刷头包括刷头壳体、刷架和刷毛；牙刷主体还包括内壳体和防水胶套，内壳体的一端一体成型有第一端盖，主壳体靠近第一端盖的一端一体成型有第二端盖，驱动电机的输出轴的一端依次穿过第一端盖和第二端盖，防水胶套安装在第一端盖和 / 或第二端盖上，防水胶套套接在驱动电机的输出轴上。本实用新型的牙刷主体具有内壳体和防水胶套，所述驱动电机位于所述内壳体内，防水胶套套接在所述驱动电机的输出轴上，实现对所述驱动电机的输出轴的防水密封，可以有效防止外部的水进行驱动电机内部而损坏电机。

Claims

1. An electric toothbrush capable of polishing teeth, comprising a toothbrush body and a toothbrush head detachably connected to the toothbrush body, the toothbrush body comprising a main housing and a drive motor disposed inside the main housing, characterized in that, The toothbrush head includes a brush head housing, a brush holder, and bristles. The brush head housing is detachably mounted on the main housing, the brush holder is rotatably mounted on the brush head housing, and the bristles are distributed on the brush holder. One end of the output shaft of the drive motor extends out of the main housing and is connected to the brush holder through a transmission mechanism to drive the brush holder to rotate. The toothbrush body also includes an inner shell and a waterproof sleeve. The drive motor is located inside the inner shell and is fixedly mounted on the inner shell. The inner shell is located inside the main shell and is fixedly mounted on the main shell. A first end cap is integrally formed on the end of the inner shell near the toothbrush head. A second end cap is integrally formed on the end of the main shell near the toothbrush head. One end of the output shaft of the drive motor passes through the first end cap and the second end cap in sequence. The waterproof sleeve is installed on the first end cap and / or the second end cap, and the waterproof sleeve is fitted onto the output shaft of the drive motor to achieve a waterproof seal for the output shaft of the drive motor.

2. The electric toothbrush of claim 1, wherein, The output shaft of the drive motor has a first flat section at one end extending out of the main housing. The transmission mechanism includes a transmission shaft, which is rotatably mounted on the brush head housing. One end of the transmission shaft is provided with a connecting hole, which has a second flat part for engaging with the first flat part. The transmission shaft is inserted into the output shaft of the drive motor to drive the transmission shaft to rotate.

3. A tooth polishable electric toothbrush according to claim 2, wherein, The transmission mechanism further includes a bevel gear mechanism, which includes a driving bevel gear and a driven bevel gear that mesh with each other. The driving bevel gear is installed at the end of the transmission shaft away from the second flat position, and the driven bevel gear is rotatably installed on the brush head housing and coaxially connected to the brush holder to drive the brush holder to rotate.

4. A tooth polishable electric toothbrush according to claim 2, wherein The transmission mechanism further includes a tooth-clamping mechanism, which includes an active tooth-clamping disc and a driven tooth-clamping disc arranged coaxially and meshing with each other. The active tooth-clamping disc is installed at the end of the transmission shaft away from the second flat position, and the active tooth-clamping disc is coaxially arranged with the transmission shaft. The driven tooth-clamping disc is rotatably installed on the brush head housing and coaxially connected to the brush holder to drive the brush holder to rotate.

5. The electric toothbrush of claim 2, wherein the tooth polishing means comprises a plurality of tooth polishing elements. A support sleeve is fixedly installed on the inner wall of the brush head housing. The drive shaft passes through the support sleeve and has multiple shoulders. The inner wall of the support sleeve contacts each shoulder of the drive shaft.

6. The electric toothbrush of claim 1, wherein the tooth polishing means comprises a polishing pad having a plurality of polishing elements. The waterproof sleeve is made of silicone or rubber.

7. The electric toothbrush of claim 1, wherein the tooth polishing means comprises a polishing pad having a plurality of polishing elements. The waterproof sleeve includes a sleeve body and an annular protrusion disposed on the inner wall of the sleeve body. The annular protrusion contacts the output shaft of the drive motor. The cross-section of the annular protrusion is arc-shaped on the side near the output shaft of the drive motor, so that the annular protrusion and the output shaft of the drive motor are in line contact.

8. The electric toothbrush of claim 1, wherein, An annular locking platform is provided on the side of the first end cap near the second end cap, and an annular locking groove is provided on the waterproof sleeve. The annular locking platform is inserted into the annular locking groove, thereby installing the waterproof sleeve on the first end cap.

9. The electric toothbrush of claim 1, wherein, The second end cap has a blind hole on the side near the first end cap, and the waterproof sleeve has an annular boss on the side near the second end cap. The annular boss extends into the blind hole, and the wall of the blind hole cooperates with the output shaft of the drive motor to clamp the annular boss.

10. A tooth polishable electric toothbrush according to any one of claims 1-9, characterized in that, The drive motor is a servo motor, which controls the brush holder to rotate in both forward and reverse directions or in one direction.

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