Electric toothbrush adaptive to low-noise motor shaft

Abstract

The utility model discloses an electric toothbrush adaptable to a low-noise motor shaft, and relates to the technical field of electric toothbrushes, the electric toothbrush comprises a toothbrush handle, the outer wall of the toothbrush handle is provided with a button, the top of the toothbrush handle is rotatably connected with the motor shaft, the outer wall of the motor shaft is provided with a shaft sleeve, and the inner wall of the shaft sleeve is fixedly connected with a clamping block. A clamping groove is formed in the connecting portion of the outer wall of the motor shaft and the clamping block. According to the electric toothbrush, the screw rod and the protective cover are arranged, so that when the electric toothbrush is used in daily life and the toothbrush head and the motor shaft for noise reduction are installed and used, the noise reduction effect of installation between the toothbrush head and the motor shaft is further improved, and the moisture-proof effect of the electric toothbrush in daily use is improved; the protective cover is connected to the outer wall of the toothbrush handle in a sleeving manner, and the bolt is rotated to clamp and fix the protective cover through the limiting effect of the nut, so that the vibration sense of the hand of a user is reduced, and the bottom of the toothbrush handle is dampproof.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, specifically to an electric toothbrush that can be adapted to a low-noise motor shaft. Background Technology

[0002] An electric toothbrush, invented by Philippe-Guy Woog, uses a motor to rapidly rotate or vibrate, causing the brush head to vibrate at high frequency. This instantly breaks down toothpaste into fine foam, deeply cleaning between teeth. At the same time, the vibration of the bristles promotes blood circulation in the mouth and massages the gum tissue.

[0003] In the prior art, an electric toothbrush with publication number CN218943563U includes: a toothbrush shell, a toothbrush base, and a toothbrush head. The toothbrush base is installed at the bottom of the toothbrush shell, and the toothbrush head is embedded in the toothbrush shell. The toothbrush shell is provided with a drive mechanism for driving the toothbrush head to swing. One end of the toothbrush shell is provided with a toothbrush cover for protecting the toothbrush head. This utility model drives the toothbrush head to swing through the drive mechanism to achieve electric brushing. The toothbrush cover plays a protective role, effectively preventing the toothbrush head from being contaminated, thus providing an electric toothbrush that can effectively protect the toothbrush head.

[0004] However, while this type of electric toothbrush allows for good use of the brush head, the installation and use between the brush head and the noise-reducing motor shaft is not very convenient. Furthermore, when using an electric toothbrush, the user's hands are often in direct contact with the toothbrush surface, resulting in poor noise reduction at the point of contact with the user's hands. Additionally, placing the electric toothbrush directly on a shelf does not provide adequate moisture protection for the bottom of the handle, thus reducing the comfort and lifespan of the electric toothbrush.

[0005] Therefore, in view of this, we have studied and improved the existing structure to propose an electric toothbrush that can be adapted to a low-noise motor shaft. Utility Model Content

[0006] The purpose of this utility model is to provide an electric toothbrush that can be adapted to a low-noise motor shaft, so as to solve the problems mentioned in the background art, such as the low convenience of installation and use between the toothbrush head and the noise-reducing motor shaft, the low noise reduction effect on the contact part of the user's hand, and the low moisture protection effect on the bottom of the toothbrush handle when the electric toothbrush is placed directly on the placement table.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electric toothbrush adaptable to a low-noise motor shaft, comprising a toothbrush handle, a button on the outer wall of the toothbrush handle, a motor shaft rotatably connected to the top of the toothbrush handle, a bushing sleeve installed on the outer wall of the motor shaft, a retaining block fixedly connected to the inner wall of the bushing sleeve, a retaining groove formed at the connection between the outer wall of the motor shaft and the retaining block, a screw threadedly connected to the outer wall of the bushing sleeve on one side of the retaining block, a spiral groove formed at the connection between the inner wall of the bushing sleeve and the screw, a toothbrush head fixedly connected to the top of the bushing sleeve, a connecting block fixedly connected to the outer wall of the toothbrush handle, a nut on the outer wall of the connecting block, a bolt threadedly connected to the inner wall of the nut, and a protective cover fitted onto the outer wall of the toothbrush handle on one side of the bolt.

[0008] Furthermore, the inner wall of the bushing is provided with a mounting groove at the connection between it and the motor shaft.

[0009] Furthermore, the connection between the outer wall of the screw and the spiral groove is provided with an external spiral.

[0010] Furthermore, the locking block is resilient and is positioned on the movement trajectory of the screw.

[0011] Furthermore, a slot is provided at the connection point between the inner wall of the protective cover and the toothbrush handle.

[0012] Furthermore, the entire protective cover is made of silicone.

[0013] Furthermore, the bottom of the protective cover is provided with anti-slip texture.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention, through the use of a screw and a protective cover, improves the noise reduction effect when installing the toothbrush head and the motor shaft during daily use of the electric toothbrush. Furthermore, it enhances the moisture resistance of the electric toothbrush during daily use. The protective cover is fitted onto the outer wall of the toothbrush handle, and the bolt, through the limiting action of the nut, locks the protective cover in place, reducing vibration in the user's hand and providing moisture protection to the bottom of the toothbrush handle. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the electric toothbrush of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the electric toothbrush of this utility model from another direction;

[0018] Figure 3This is a cross-sectional view of the protective cover of this utility model;

[0019] Figure 4 This is a cross-sectional view of the connection between the motor shaft and the shaft sleeve of this utility model.

[0020] Figure 5 This is an exploded structural diagram showing the positional distribution of the motor shaft and shaft sleeve of this utility model;

[0021] Figure 6 This is a schematic diagram of the screw position distribution structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the distribution of the protective cover and bolt positions of this utility model.

[0023] In the picture:

[0024] 1. Toothbrush handle; 2. Button; 3. Motor shaft; 4. Shaft sleeve; 5. Clamping block; 6. Clamping groove; 7. Screw; 8. Spiral groove; 9. Toothbrush head; 10. Protective cover; 11. Connecting block; 12. Nut; 13. Bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] like Figures 1-7 As shown, an electric toothbrush adaptable to a low-noise motor shaft includes a toothbrush handle 1, a button 2 on the outer wall of the toothbrush handle 1, a motor shaft 3 rotatably connected to the top of the toothbrush handle 1, a shaft sleeve 4 installed on the outer wall of the motor shaft 3, a retaining block 5 fixedly connected to the inner wall of the shaft sleeve 4, a retaining groove 6 formed at the connection between the outer wall of the motor shaft 3 and the retaining block 5, a screw 7 threadedly connected to the outer wall of the shaft sleeve 4 on one side of the retaining block 5, a spiral groove 8 formed at the connection between the inner wall of the shaft sleeve 4 and the screw 7, a toothbrush head 9 fixedly connected to the top of the shaft sleeve 4, a connecting block 11 fixedly connected to the outer wall of the toothbrush handle 1, a nut 12 on the outer wall of the connecting block 11, a bolt 13 threadedly connected to the inner wall of the nut 12, and a protective cover 10 sleeved on the outer wall of the toothbrush handle 1 on one side of the bolt 13.

[0028] like Figure 5 and Figure 6As shown, the inner wall of the bushing 4 is provided with an installation groove at the connection between the bushing 4 and the motor shaft 3. This facilitates the convenient installation and use of the toothbrush head 9 and the noise-reducing motor shaft 3.

[0029] like Figure 6 As shown, the connection between the outer wall of the screw 7 and the spiral groove 8 is provided with an external spiral, which is beneficial to the screw 7 rotating and then self-locking.

[0030] like Figure 4 and Figure 5 As shown, the locking block 5 is flexible and is set on the movement trajectory of the screw 7. The flexible design of the locking block 5 facilitates the easy engagement and installation between the motor shaft 3 and the shaft sleeve 4.

[0031] like Figure 3 and Figure 7 As shown, a slot is provided at the connection point between the inner wall of the protective cover 10 and the toothbrush handle 1. This facilitates the easy insertion and installation of the protective cover 10.

[0032] like Figure 7 As shown, the protective cover 10 is made entirely of silicone, which helps to further reduce the vibration felt by the user when holding the toothbrush handle 1.

[0033] like Figure 3 As shown, the bottom of the protective cover 10 is provided with anti-slip texture, which helps to effectively prevent moisture from entering the bottom of the toothbrush handle 1.

[0034] Working principle: When using this type of electric toothbrush that is compatible with a low-noise motor shaft, in order to improve the noise reduction effect between the toothbrush head 9 and the motor shaft 3 during daily use, and to further improve the moisture protection effect of the electric toothbrush during daily use, the protective cover 10 is fitted onto the outer wall of the toothbrush handle 1, and the bolt 13 is rotated to lock and fix the protective cover 10 through the limiting action of the nut 12, thereby reducing the vibration of the user's hand and providing a moisture protection effect for the bottom of the toothbrush handle 1.

[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

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