CN217138326U

CN217138326U - Electric toothbrush and toothbrush head thereof

Info

Publication number: CN217138326U
Application number: CN202122386520.9U
Authority: CN
Inventors: 麦华彬
Original assignee: Aigdoo Shenzhen Technology Co ltdS
Current assignee: Aigdoo Shenzhen Technology Co ltdS
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-08-09
Anticipated expiration: 2031-09-29
Also published as: WO2023050784A1

Abstract

The utility model relates to an electric toothbrush and a toothbrush head, wherein the electric toothbrush comprises a toothbrush head, a handle and a motor; the handle includes a first end; the toothbrush head is connected to the first end of the handle, the motor comprises a motor shaft, the motor shaft penetrates out of the first end of the handle and penetrates into the toothbrush head, and the toothbrush head comprises a connecting part connected with the handle and an inner sleeve body arranged in the connecting part; the inner sleeve body is internally provided with an elastic sleeving part which can be sleeved on the motor shaft. This electric toothbrush is through setting up elasticity cup joint piece in the interior cover body of toothbrush head, and then can overcome and pull out the too big or too little problem of power of inserting with motor axle assembly time, improve with motor axle cooperation degree to can reduce the noise that produces with motor axle collision.

Description

Electric toothbrush and toothbrush head thereof

Technical Field

The utility model relates to an oral cavity cleaning appliance, more specifically say, relate to an electric toothbrush and toothbrush head thereof.

Background

The inner sleeve body of the toothbrush head of the electric toothbrush in the related art is usually made of full hard rubber, and due to the influence of injection molding conditions, the inner sleeve body of the toothbrush head is generally too large or too small in size and difficult to assemble with a motor shaft, and the plugging force is too large or too small during the assembly with the motor shaft, and the noise is easily generated due to the collision with the motor shaft.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an improved electric toothbrush and toothbrush head.

The utility model provides a technical scheme that its technical problem adopted is: constructing a power toothbrush comprising a toothbrush head, a handle, and a motor; the handle includes a first end; the toothbrush head is connected to the first end of the handle, the motor comprises a motor shaft, the motor shaft penetrates out of the first end of the handle and penetrates into the toothbrush head, and the toothbrush head comprises a connecting part connected with the handle and an inner sleeve body arranged in the connecting part; the inner sleeve body is internally provided with an elastic sleeving part which can be sleeved on the motor shaft.

Preferably, the inner sleeve body is a hard rubber part;

the elastic socket joint piece is a soft rubber piece.

Preferably, the inner sleeve body and the elastic sleeve piece are integrally formed through injection molding.

Preferably, the inner sleeve body and the motor shaft are provided with a buckle structure.

Preferably, the toothbrush head includes a head body; the connecting part is arranged at one end of the brush head body.

Preferably, the connecting portion is of a hollow structure, and the inner sleeve body is arranged in a section of the connecting portion, which is far away from the brush head body.

Preferably, the inner side wall of the connecting part is provided with a space avoiding part matched with the motor shaft;

the space avoiding position is arranged on one section of the connecting part, which is far away from the brush head body.

Preferably, the inner sleeve body is detachably connected with the connecting part.

Preferably, the handle is removably connected to the toothbrush head.

The utility model also constructs a toothbrush head used for the electric toothbrush, which comprises a connecting part connected with the handle of the electric toothbrush and an inner sleeve body arranged in the connecting part; the inner sleeve body is internally provided with an elastic sleeving part which can be sleeved on a motor shaft of the electric toothbrush.

Implement the utility model discloses an electric toothbrush and toothbrush head thereof has following beneficial effect: this electric toothbrush is through setting up elasticity cup joint piece in the interior cover body of toothbrush head, and then can overcome and pull out the too big or too little problem of power of inserting with motor axle assembly time, improve with motor axle cooperation degree to can reduce the noise that produces with motor axle collision.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic view of an electric toothbrush according to some embodiments of the present invention;

FIG. 2 is a cross-sectional view of the powered toothbrush of FIG. 1;

fig. 3 is an enlarged view of a portion of the electric toothbrush shown in fig. 2.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 shows some preferred embodiments of the electric toothbrush of the present invention. The electric toothbrush can be used for cleaning oral cavity. The electric toothbrush has the advantages of simple structure, simple and convenient assembly and strong assembly stability.

As shown in fig. 1 and 2, in some embodiments, the electric toothbrush may include a head 10, a handle 20, and a motor 30. In use, the toothbrush head 10 may be extended into the oral cavity for cleaning teeth. The handle 20 may be disposed at one end of the toothbrush head 10 and may be used for a user to hold. The motor 30 can be accommodated in the handle 20, and the motor 30 can be connected to the toothbrush head 10 for driving the toothbrush head 10 to vibrate.

Further, as shown in fig. 2 and 3, in some embodiments, the toothbrush head 10 may include a head body 11, a connecting portion 12, an inner sheath 13, and an elastic socket 14. The head body 11 may extend into the oral cavity for tooth cleaning. The connecting portion 12 can be used to connect the head body 11 and the handle 20. The inner sleeve 13 is disposed in the connecting portion 12 and can be sleeved on the motor shaft 31 of the motor 30, so as to improve the stability of the assembly of the connecting portion 12 and the motor shaft 31. The elastic sleeve 14 is disposed in the inner housing 13, so as to overcome the problem of too large or too small insertion force when assembling with the motor shaft 31, improve the degree of matching with the motor shaft 31, and reduce the noise generated by collision with the motor shaft 31.

The head body 11 may have bristles, which may be soft bristles, it being understood that in some embodiments the bristles may also be bristles. The brush head body 11 may be made of plastic, but it should be understood that the brush head body 11 may not be limited to plastic in other embodiments.

The connecting portion 12 can be disposed at one end of the brush head body 11, the connecting portion 12 can be a column or a cone, the connecting portion 12 can be made of plastic, and it should be understood that in other embodiments, the connecting portion 12 can not be limited to be made of plastic. The connecting portion 12 and the brush head body 11 may be integrally formed by injection molding. Of course, it will be appreciated that in some embodiments, the connecting portion 12 may be removably connected to the head body 11, such as by being removably connected to the head body 11. In some embodiments, the connecting portion 12 may be a hollow structure with an opening at one end, and the open end may be used for inserting a motor shaft of the motor.

Further, in some embodiments, the inner sleeve 13 can be detachably connected to the connecting portion 12, and can be embedded in a section of the connecting portion 12 away from the head body 11, that is, near an end of the connecting portion 12 having an opening. The inner sleeve 13 may be a hard rubber member, and may be in a conical shape or a cylindrical shape, and has a hollow structure with an opening at one end. The outer diameter of the inner sleeve 13 can be matched with the inner diameter of the connecting part 12, and the inner diameter can be slightly larger than the outer diameter of the motor shaft 31, so that the motor shaft 12 and the elastic socket 14 can be conveniently installed.

In some embodiments, the inner housing 13 and the motor shaft 31 may be provided with a snap structure, the snap structure may include a snap and a groove, the snap may be provided on the motor shaft 31, the groove may be provided on an inner sidewall of the inner housing 13, and the snap structure may improve the stability of the assembly of the inner housing 13 and the motor shaft 31. In some embodiments, the connecting portion 12 may be provided with an avoidance space 121, the avoidance space 121 may be disposed on a section of the connecting portion 12 away from the brush head body 11, that is, on a section of the connecting portion 12 close to the opening thereof, and is located on an inner side wall of the connecting portion 12, the avoidance space 121 may be matched with the motor 31, and specifically, when the inner sleeve 13 and the motor shaft 31 are assembled through a snap structure, the avoidance space 121 may provide an avoidance space for a snap action on the motor shaft 31. The connection can be achieved, and in some embodiments, the snap structure can be omitted, and the clearance 121 can also be omitted.

Further, in some embodiments, the elastic sleeve 14 may be a soft plastic, and may be formed by injection molding to form an inner sidewall of the inner sleeve 13 and may be integrally formed with the inner sleeve 13. Of course, it is understood that in other embodiments, it can be detachably installed with the inner housing 13, for example, it can be plugged into the inner housing 13. In some embodiments, the elastic socket 14 may be cylindrical or conical and has a hollow structure with an opening at one end to facilitate assembly with the motor shaft 31.

Further, as shown in fig. 2, in some embodiments, the handle 20 may be a cylindrical body, and the inner side thereof may be a hollow structure, and the inner side thereof may form a receiving space for receiving the motor 30. The handle 20 may include a first end and a second end disposed opposite the first end. The toothbrush head 10 may be attached to a first end of the handle 20. In some embodiments, the handle 20 can be detachably connected to the toothbrush head 10, that is, the handle 20 can be detachably connected to the link 12, and specifically, the handle 20 can be detachably connected to the toothbrush head 10 via the motor shaft 31 to the link 12.

Further, in some embodiments, the motor 30 may be partially housed in the handle 20, and in particular, the motor 30 may include a motor shaft 31, and the motor shaft 31 may extend out of the first end of the handle 20 and into the toothbrush head 10.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. An electric toothbrush comprising a toothbrush head (10), a handle (20), and a motor (30); the handle (20) comprises a first end; the toothbrush head (10) is connected to the first end of the handle (20), the motor (30) comprises a motor shaft (31), the motor shaft (31) penetrates out of the first end of the handle (20) and penetrates into the toothbrush head (10), and the toothbrush head (10) is characterized by comprising a connecting part (12) connected with the handle (20) and an inner sleeve body (13) arranged in the connecting part (12); the inner sleeve body (13) is provided with an elastic sleeving part (14) which can be sleeved on the motor shaft (31).

2. The electric toothbrush according to claim 1, characterized in that the inner sheath (13) is a hard glue;

the elastic socket joint piece (14) is a soft rubber piece.

3. The electric toothbrush according to claim 1, characterized in that the inner sheath (13) and the elastic socket (14) are integrally formed by injection molding.

4. The electric toothbrush according to claim 1, wherein the inner sheath (13) and the motor shaft (31) are provided with snap-fit structures.

5. The electric toothbrush according to claim 1, characterized in that the toothbrush head (10) includes a head body (11); the connecting part (12) is arranged at one end of the brush head body (11).

6. The electric toothbrush according to claim 5, characterized in that the connecting part (12) is a hollow structure, and the inner sheath (13) is disposed in a section of the connecting part (12) away from the head body (11).

7. The electric toothbrush according to claim 5, wherein an escape space (121) engaged with the motor shaft (31) is provided on an inner side wall of the connecting portion (12);

the space avoiding position (121) is arranged on a section of the connecting part (12) far away from the brush head body (11).

8. The electric toothbrush according to claim 1, characterized in that the inner sheath (13) is detachably connected to the connecting portion (12).

9. The powered toothbrush as defined in claim 1, wherein the handle (20) is removably connected to the toothbrush head (10).

10. A toothbrush head for an electric toothbrush according to any one of claims 1 to 9, comprising a connecting portion (12) connected to a handle (20) of the electric toothbrush, and an inner sheath (13) fitted in the connecting portion (12); an elastic sleeving part (14) which can be sleeved on a motor shaft (31) of the electric toothbrush is assembled in the inner sleeve body (13).