Brush head assembly part of electric toothbrush

Abstract

The utility model relates to the technical field of electric toothbrushes, and discloses a brush head assembly part of an electric toothbrush. The brush head assembly part of the electric toothbrush comprises a base, a sleeve column and a sound insulation part which are internally communicated with one another, the base is connected with a brush head of the electric toothbrush in a matched mode, the sleeve column is arranged on the base, the sound insulation piece is arranged on the sleeve column, the radius of the sound insulation piece is reduced from bottom to top so that the sound insulation piece can be in a conical shape, and the sound insulation piece is connected with the inner wall of the brush head of the electric toothbrush in a touch mode. The brush head assembly part of the electric toothbrush is simple in structure and easy and convenient to install, meanwhile, the assembly part can form two different cavities, noise generated during rotation of a motor is isolated through the cavities, accordingly, disturbance generated by the noise is reduced, the use experience of a user is improved, the cavities are in the vacuum state, the brush head assembly part can be fixed more firmly, and the assembly part is convenient to use. The device has the advantages of being convenient to install, difficult to take out, compatible and easy to manufacture, and reliable user experience.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to a brush head assembly part of an electric toothbrush. Background Art

[0002] An electric toothbrush uses the rapid rotation or vibration of the motor to produce high-frequency vibrations in the brush head, instantly breaking down the toothpaste into fine foam and deeply cleaning the gaps between teeth. At the same time, the vibration of the bristles can promote blood circulation in the mouth and have a massage effect on the gum tissue.

[0003] In order to increase the rotation speed of the motor core and thus improve the vibration frequency of the brush head, an electric motor is installed in the existing electric toothbrush body, and the electric motor drives the motor core to rotate.

[0004] Since the motor has a high power, it tends to generate a lot of noise when driving the electric motor to rotate at a high speed, causing nuisance to the user and reducing the user experience. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a brush head assembly of an electric toothbrush, comprising: a base, a sleeve column and a sound insulation member which are interconnected internally;

[0006] The base is matched and connected with the brush head of the electric toothbrush, the sleeve column is arranged on the base, the sound insulation member is arranged on the sleeve column, the radius of the sound insulation member decreases from bottom to top so that the sound insulation member is conical, and the sound insulation member is in contact with the inner wall of the brush head of the electric toothbrush.

[0007] Through the above technical solution, the device has a simple structure and is easy and convenient to install.

[0008] As a further improvement of the above solution, the radius of the base is a, the radius of the sleeve is b, and the radius of the bottom of the sound insulation is c, wherein a is greater than c and greater than b.

[0009] As a further improvement of the above solution, a positioning ring is provided at the bottom of the sound insulation component, the positioning ring is arranged on the sleeve, and the positioning ring is in contact with the inner wall of the brush head of the electric toothbrush.

[0010] As a further improvement of the above solution, a hollow cavity is provided on the side of the sound insulation.

[0011] As a further improvement of the above solution, the radius of the hollow chamber decreases from bottom to top.

[0012] Through the above technical solution, the assembly part is matched with the inner wall of the brush head.

[0013] As a further improvement of the above solution, the radius of the frustum decreases from bottom to top, so that the side surface of the frustum tilts from bottom to top toward the center of the circle.

[0014] As a further improvement of the above solution, the base is made of plastic.

[0015] As a further improvement of the above solution, the sleeve is made of plastic.

[0016] As a further improvement of the above solution, the sound insulation piece is made of plastic.

[0017] Through the above technical solution, the production cost can be reduced and the durability and service life of the entire assembly can be improved.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model has a simple structure and is easy and convenient to install by providing a base, a sleeve column and a sound insulation component that are internally interconnected. At the same time, the assembly can form two different chambers, which can isolate the noise generated when the motor rotates, thereby reducing noise nuisance and improving the user experience. The chamber is in a vacuum state, which can make the assembly on the brush head more firmly fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the base of the utility model when viewed from above;

[0022] Figure 3 This is a schematic diagram of the top view of the sound insulation component of the utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the sleeve of the utility model.

[0024] In the figure: 1. base; 2. sleeve column; 3. sound insulation; 4. positioning ring; 5. hollow chamber. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] Example:

[0027] Please combine Figure 1-4 , a brush head assembly of an electric toothbrush in this embodiment includes: a base 1, a sleeve column 2 and a sound insulation member 3 which are interconnected internally;

[0028] The base 1 is matched and connected with the brush head of the electric toothbrush, the sleeve column 2 is arranged on the base 1, and the sound insulation member 3 is arranged on the sleeve column 2. The radius of the sound insulation member 3 decreases from bottom to top so that the sound insulation member 3 is conical. The sound insulation member 3 is in contact with the inner wall of the brush head of the electric toothbrush. By arranging the base 1, the sleeve column 2 and the sound insulation member 3 that are interconnected internally, the structure is simple and the installation is simple and convenient. At the same time, the assembly can form two different chambers, and the noise generated when the motor rotates is isolated by the chamber, thereby reducing the noise nuisance and improving the user experience.

[0029] The radius of the base 1 is a, the radius of the sleeve 2 is b, and the radius of the bottom of the sound insulation member 3 is c, wherein a is greater than c and greater than b. Since the radius of the sleeve 2 is smaller than the base 1 and the sound insulation member 3, a certain cavity is formed between the sleeve 2 and the inner wall of the brush head. When the assembly is installed and fixed in the brush head, the formed cavity can form a vacuum cavity, which can activate the sound insulation effect. At the same time, since the air pressure in the cavity is lower than the external air pressure, the assembly can be compressed by the external air pressure, so that the assembly is fixed more firmly on the brush head.

[0030] A positioning ring 4 is provided at the bottom of the sound insulation member 3. The positioning ring 4 is arranged on the sleeve column 2, and the positioning ring 4 is in contact with the inner wall of the brush head of the electric toothbrush.

[0031] A hollow chamber 5 is provided on the side of the sound insulation part 3, and the hollow chamber 5 can face the inner wall of the brush head. When the assembly part rotates with the motor shaft, the hollow chamber 5 can not only reduce the contact between the rotating part and the inner wall of the brush head and reduce the wear of the assembly part, but also eliminate the noise generated during rotation, thereby improving the user experience.

[0032] The radius of the hollow chamber 5 decreases from bottom to top.

[0033] The base 1 is a truncated cone.

[0034] The radius of the frustum decreases from bottom to top, so that the side of the frustum is inclined from bottom to top toward the center of the circle, and the frustum can be stuck at the bottom of the brush head to prevent the assembly parts from falling.

[0035] The base 1 is made of plastic.

[0036] The sleeve column 2 is made of plastic.

[0037] The sound insulation member 3 is made of plastic.

[0038] The implementation principle of a brush head assembly of an electric toothbrush in the embodiment of the present application is as follows: first, the base 1 is matched and connected with the brush head of the electric toothbrush, and because the radius of the sleeve 2 is smaller than the base 1 and the sound insulation 3, a certain cavity is formed between the sleeve 2 and the inner wall of the brush head. When the assembly is installed and fixed in the brush head, the formed cavity can form a vacuum cavity, which can activate the sound insulation effect. At the same time, since the air pressure in the cavity is lower than the external air pressure, the assembly can be compressed by the external air pressure, so that the assembly is fixed more firmly on the brush head. At the same time, the hollow chamber 5 can face the inner wall of the brush head. When the assembly rotates with the motor shaft, the hollow chamber 5 can not only reduce the contact between the rotating part and the inner wall of the brush head and reduce the wear of the assembly, but also eliminate the noise generated during rotation.

[0039] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A brush head assembly for an electric toothbrush, characterized in that: include: A base (1), a sleeve column (2) and a sound insulation member (3) which are interconnected internally; The base (1) is matched and connected with the brush head of the electric toothbrush, the sleeve column (2) is arranged on the base (1), the sound insulation member (3) is arranged on the sleeve column (2), the radius of the sound insulation member (3) decreases from bottom to top so that the sound insulation member (3) is conical, and the sound insulation member (3) is in contact with the inner wall of the brush head of the electric toothbrush.

2. The brush head assembly of an electric toothbrush according to claim 1, characterized in that: The radius of the base (1) is a, the radius of the sleeve column (2) is b, and the radius of the bottom of the sound insulation member (3) is c, wherein a is greater than c and greater than b.

3. The brush head assembly of an electric toothbrush according to claim 1, characterized in that: A positioning ring (4) is provided at the bottom of the sound insulation member (3); the positioning ring (4) is arranged on the sleeve column (2), and the positioning ring (4) is in contact with the inner wall of the brush head of the electric toothbrush.

4. The brush head assembly of an electric toothbrush according to claim 1, characterized in that: A hollow chamber (5) is provided on the side of the sound insulation member (3).

5. The brush head assembly of an electric toothbrush according to claim 4, characterized in that: The radius of the hollow chamber (5) decreases from bottom to top.

6. The brush head assembly of an electric toothbrush according to claim 1, characterized in that: The base (1) is a truncated cone.

7. The brush head assembly of an electric toothbrush according to claim 6, characterized in that: The radius of the frustum decreases from bottom to top, so that the side surface of the frustum is inclined from bottom to top toward the center of the circle.

8. The brush head assembly of an electric toothbrush according to claim 1, characterized in that: The base (1) is made of plastic.

9. The brush head assembly of an electric toothbrush according to claim 1, characterized in that: The sleeve column (2) is made of plastic.

10. The brush head assembly of an electric toothbrush according to claim 1, characterized in that: The sound insulation piece (3) is made of plastic.

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