Tail cover of electric toothbrush

Abstract

The utility model relates to the field of electric toothbrushes, and discloses a tail cover of an electric toothbrush, which comprises a sleeve body arranged on the electric toothbrush and a cover plate arranged on the sleeve body, a closed hole is formed in the bottom of the sleeve body, the cover plate is provided with a sealing piece, the side face of the sealing piece is fixedly connected with a sealing ring, and the sealing ring is in touch connection with the inner wall of the closed hole at the position of the sealing piece so that the closed hole can be sealed through the cover plate. According to the utility model, the sealing ring is arranged to seal the closing hole, so that the cover plate can be prevented from falling off, and the side edge of the closing hole is obliquely arranged, so that the falling resistance of the cover plate can be increased, and the situation that the tail cover is blocked and cannot be opened or the tail cover is automatically bounced off due to air pressure compression caused by different air pressures between the tail cover and the USB charging port is avoided; and water can be further prevented from entering the charging port, the risk of short circuit is reduced, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to a tail cap of an electric toothbrush. Background Art

[0002] An electric toothbrush makes the brush head generate high-frequency vibration through the rapid rotation or vibration of the motor core, instantly decomposes toothpaste into fine foam, and deeply cleans the tooth gaps. At the same time, the vibration of the bristles can promote blood circulation in the oral cavity and has a massage effect on the gingival tissue.

[0003] During use, since the electric toothbrush will come into contact with water to varying degrees, in order to protect the battery, circuit components, and USB charging port inside the electric compression, and prevent water from entering the electric toothbrush through the USB charging port, a common electric toothbrush will be provided with a tail cap at the USB charging port to protect the USB charging port through the tail cap.

[0004] However, because there is air pressure between the tail cap and the USB charging port, during use, if the air pressure between the tail cap and the USB charging port is different from the ambient air pressure, it is easy to cause the tail cap to be blocked and unable to be opened, or the tail cap to be automatically popped open by the air pressure, resulting in the user being difficult to open the tail cap for charging and the tail cap being unable to protect the charging port.

[0005] The utility model provides a tail cap of an electric toothbrush. Summary of the Utility Model

[0006] To solve the above technical problems, the utility model provides a tail cap of an electric toothbrush.

[0007] The utility model is realized by the following technical solutions: A tail cap of an electric toothbrush includes a sleeve body provided on the electric toothbrush, and a cover plate provided on the sleeve body;

[0008] A closing hole is opened at the bottom of the sleeve body, the cover plate is provided with a sealing member, a sealing ring is fixedly connected to the side of the sealing member, and at the sealing member, the sealing ring touches and connects with the inner wall of the closing hole so that the cover plate seals the closing hole.

[0009] As a further improvement of the above solution, the sealing ring has two layers, and the two sealing rings are respectively arranged around the sealing member.

[0010] Through the above technical solutions, the radius of the sealing ring is greater than the radius of the closing hole. During assembly, the closing hole can squeeze the sealing ring, so that the sealing ring can be firmly fixed in the closing hole, and the sealing ring is in a compressed state. The two sealing rings can further improve the sealing ability, so that the cover plate can seal the closing hole more stably.

[0011] As a further improvement of the above solution, a sealing interval is provided between the two-layer sealing rings, and the interval distance is h.

[0012] Through the above technical solution, since both of the two sealing layers are in a compressed state and tightly contact the inner wall of the closing hole, a sealed chamber is formed in the interval space between the two sealing layers, and the air pressure in this sealed chamber is lower than the air pressure around it, so that the air pressure around squeezes the sealed chamber, thereby enabling the cover plate 2 to be set more stably in the closing hole.

[0013] As a further improvement of the above solution, the inner wall of the closing hole is inclined towards both sides along the vertical line.

[0014] Through the above technical solution, by setting an inverted slope inside the closing hole, the rebound resistance of the closing hole can be increased, thereby resisting the rebound of the tail cover and further improving the sealing ability of the cover plate.

[0015] As a further improvement of the above solution, the inclination angle of the inner wall of the closing hole is α, and the angle range of α is 1 - 10 degrees.

[0016] As a further improvement of the above solution, the preferred angle range of α is 1 - 5 degrees.

[0017] Through the above technical solution, in actual operation, by adjusting the inclination angle of the closing hole, the resistance to the rebound of the cover plate can be increased, and the sealing stability of the cover plate can be improved.

[0018] As a further improvement of the above solution, the sealing ring is made of soft rubber material.

[0019] Through the above technical solution, during installation and fixation, the sealing ring can be in a compressed state, and when separated, the sealing ring can return to its original state. For the convenience of user installation.

[0020] As a further improvement of the above solution, the cover plate is made of hard rubber material.

[0021] Through the above technical solution, the hard rubber material improves the service life and sealing strength of the cover plate.

[0022] As a further improvement of the above solution, the sleeve body is provided with a positioning hole, the cover plate is provided with a positioning post, and the positioning post is arranged in the positioning hole.

[0023] Through the above technical solution, pass the positioning post through the positioning hole, and then slowly seal the cover plate in the closing hole to complete the installation. It can not only facilitate the user to install and use, but also prevent the cover plate from detaching from the closing hole.

[0024] As a further improvement of the above solution, the sleeve body is provided with a buckle, and the sleeve body is arranged on the electrically compressed fuselage through the buckle.

[0025] Through the above technical solution, the entire end cap can be fixed more firmly at the charging port of the electric toothbrush.

[0026] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0027] By providing a sealing ring, the present utility model can seal the closing hole, thereby preventing the cover plate from falling off. Moreover, the side of the closing hole is inclined, which can increase the resistance to the cover plate falling off, thus avoiding the situation that the end cap is blocked and cannot be opened due to different air pressures between the end cap and the USB charging port, or the end cap is automatically popped open due to air pressure compression, improving the stability of the cover plate, making the cover plate fixed more firmly, further preventing water from entering the charging port, reducing the risk of circuit short - circuit, and improving the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0029] Figure 2 is a schematic diagram of the sectional structure of the sleeve body of the present utility model;

[0030] Figure 3 is a schematic diagram of the overall sectional structure of the present utility model;

[0031] Figure 4 is a schematic diagram of the sectional structure of the cover plate of the present utility model.

[0032] MAIN SYMBOL DESCRIPTION:

[0033] 1. Sleeve body; 2. Cover plate; 11. Closing hole; 12. Positioning hole; 13. Snap - fastener; 21. Sealing member; 22. Sealing ring; 23. Positioning post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0035] Embodiment:

[0036] Please refer to Figures 1-4 , an end cap of an electric toothbrush in this embodiment includes a sleeve body 1 provided on the electric toothbrush and a cover plate 2 provided on the sleeve body 1;

[0037] The bottom of the sleeve body 1 is provided with a closing hole 11. The cover plate 2 is provided with a seal 21. A sealing ring 22 is fixedly connected to the side of the seal 21. The seal 21 is arranged at the closing hole 11. The sealing ring 22 is in contact connection with the inner wall of the closing hole 11, so that the cover plate 2 seals the closing hole 11. The radius of the sealing ring 22 is larger than the radius of the closing hole 11. During assembly, the closing hole 11 can squeeze the sealing ring 22, so that the sealing ring 22 can be firmly fixed in the closing hole 11, and the sealing ring 22 is in a compressed state.

[0038] The sealing ring 22 is provided with two layers, and the two layers of sealing rings 22 are respectively arranged around the seal 21. The two layers of sealing rings 22 can further improve the sealing ability, so that the cover plate 2 can seal the closing hole 11 more stably.

[0039] There is a sealing interval between the two layers of sealing rings 22, and the interval distance is h. After installation, since both layers of sealing layers are in a compressed state and are in close contact with the inner wall of the closing hole 11, a sealed chamber is formed in the interval space between the two layers of sealing layers, and the air pressure in this sealed chamber is lower than the air pressure around it, so that the surrounding air pressure squeezes the sealed chamber, so that the cover plate 2 can be set in the closing hole 11 more stably.

[0040] The inner wall of the closing hole 11 is inclined to both sides along the vertical line. By setting an inverted inclination in the interior of the closing hole 11, the rebound resistance of the closing hole 11 can be increased, thereby resisting the rebound of the end cap and further improving the sealing ability of the cover plate 2.

[0041] The inclination angle of the inner wall of the closing hole 11 is α, and the angle range of α is 1-10 degrees.

[0042] The preferred angle range of α is 1-5 degrees. In actual operation, by adjusting the inclination angle of the closing hole 11, the resistance to the rebound of the cover plate 2 can be increased, and the sealing stability of the cover plate 2 can be improved.

[0043] The sealing ring 22 is made of soft rubber material. When installed and fixed, the sealing ring 22 can be in a compressed state, and when separated, the sealing ring 22 can return to its original state. For the convenience of user installation.

[0044] The cover plate 2 is made of hard rubber material to improve the service life and sealing strength of the cover plate 2.

[0045] The sleeve body 1 is provided with a positioning hole 12, and the cover plate 2 is provided with a positioning post 23. The positioning post 23 is arranged in the positioning hole 12. By providing the positioning hole 12 and the positioning post 23, it is not only convenient for users to install and use, but also can prevent the cover plate 2 from detaching from the closing hole 11.

[0046] The sleeve body 1 is provided with a buckle 13, and the sleeve body 1 is arranged on the body of the electric compressor through the buckle 13. So that the whole end cap can be fixed more firmly at the charging port of the electric toothbrush.

[0047] The implementation principle of a tail cap of an electric toothbrush in an embodiment of the present application is as follows: During assembly, the closing hole 11 can squeeze the sealing ring 22, so that the sealing ring 22 can be firmly fixed in the closing hole 11, and the sealing ring 22 is in a compressed state. The two layers of sealing rings 22 can further improve the sealing ability, so that the cover plate 2 can seal the closing hole 11 more stably. After installation, since both layers of the sealing layer are in a compressed state and tightly contact the inner wall of the closing hole 11, a sealed chamber is formed in the spaced space between the two layers of the sealing layer, and the air pressure in the sealed chamber is lower than the air pressure around it, so that the surrounding air pressure squeezes the sealed chamber, so that the cover plate 2 can be set in the closing hole 11 more stably. An inverted slope is provided inside the closing hole 11, which can increase the rebound resistance of the closing hole 11, so as to resist the rebound of the tail cap and further improve the sealing ability of the cover plate 2. In actual operation, by adjusting the inclination angle of the closing hole 11, the resistance to the rebound of the cover plate 2 can be increased, and the sealing stability of the cover plate 2 can be improved. When installed and fixed, the sealing ring 22 can be in a compressed state, and when separated, the sealing ring 22 can return to its original state. For the convenience of users to install.

[0048] The above-mentioned implementation manners are only the preferred implementation manners of the present utility model, and the protection scope of the present utility model cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present utility model fall within the protection scope required by the present utility model.

Claims

1. An electric toothbrush tail cover, characterized in that: include: A casing (1) provided on an electric toothbrush, and a cover plate (2) provided on the casing (1); The bottom of the sleeve (1) is provided with a closing hole (11), the cover plate (2) is provided with a sealing member (21), a sealing ring (22) is fixedly connected to the side of the sealing member (21), the sealing member (21) is arranged at the closing hole (11), and the sealing ring (22) is in contact with the inner wall of the closing hole (11), so that the cover plate (2) seals the closing hole (11); The sealing ring (22) is provided with two layers, and the two layers of sealing rings (22) are respectively arranged around the sealing element (21); A sealing interval is provided between the two layers of sealing rings (22), and the interval distance is h; The inner wall of the closed hole (11) is inclined toward both sides along the vertical line; The inclination angle of the inner wall of the closed hole (11) is α; The angle range of α is 1-5 degrees; The sealing ring (22) is made of soft rubber material; The cover plate (2) is made of hard plastic; The sleeve body (1) is provided with a positioning hole (12), the cover plate (2) is provided with a positioning column (23), and the positioning column (23) is arranged in the positioning hole (12); The sleeve (1) is provided with a buckle (13), and the sleeve (1) is arranged on the body of the electric compressor via the buckle (13).

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