阅读说明：本技术 电动牙刷的传动结合结构 (Transmission combination structure of electric toothbrush ) 是由 王伟权 韦强 于 2020-04-01 设计创作，主要内容包括：本发明提供一种电动牙刷的传动结合结构,包含一传动轴及一马达,该传动轴一端具有一第一轴套,该第一轴套具有一第一接合部,该马达具有一转轴,该转轴设有一第二轴套,该第二轴套具有一第二接合部,该第一、二接合部具有相应的截面形状对应接合；以达到较佳的传动结合结构及效果的功效者。(The invention provides a transmission combination structure of an electric toothbrush, which comprises a transmission shaft and a motor, wherein one end of the transmission shaft is provided with a first shaft sleeve, the first shaft sleeve is provided with a first joint part, the motor is provided with a rotating shaft, the rotating shaft is provided with a second shaft sleeve, the second shaft sleeve is provided with a second joint part, and the first joint part and the second joint part are correspondingly jointed in corresponding section shapes; so as to achieve the effect of better transmission combination structure and effect.)

1. A drive coupling structure of an electric toothbrush, comprising:

a transmission shaft, one end of which is provided with a first shaft sleeve, and the first shaft sleeve is provided with a first joint part; and

the motor is provided with a rotating shaft which is provided with a second shaft sleeve, the second shaft sleeve is provided with a second joint part, and the first joint part and the second joint part are correspondingly jointed in a cross section shape.

2. The power transmission coupling structure of an electric toothbrush according to claim 1, wherein: the first joint part is concavely arranged on the first shaft sleeve, and the second joint part is convexly arranged on the second shaft sleeve.

3. The power transmission coupling structure of an electric toothbrush according to claim 1, wherein: the first joint part is arranged on the first shaft sleeve in a protruding mode, and the second joint part is arranged on the second shaft sleeve in a concave mode.

4. The power transmission coupling structure of an electric toothbrush according to claim 1, wherein: the first engagement portion has any one of a straight section, a cross section, a large section, a meter section, and a gear section.

5. The power transmission coupling structure of an electric toothbrush according to claim 1, wherein: the second joint portion has any one of a straight section, a cross section, a large section, a meter section and a gear section.

6. The power transmission coupling structure of an electric toothbrush according to claim 1, wherein: the first joint part has a polygonal cross section.

7. The power transmission coupling structure of an electric toothbrush according to claim 1, wherein: the second joint part has a polygonal cross section.

8. The power transmission coupling structure of an electric toothbrush according to claim 1, wherein: the first joint part and the second joint part are fixed by any one of adhesion, clamping, tight fitting and welding.

Technical Field

The invention relates to a transmission combination structure, in particular to a transmission combination structure of an electric toothbrush.

Background

The electric toothbrush is a convenient tooth cleaning tool, and can deeply clean and combine teeth through toothpaste foam generated by vibration. It is known to engage the shaft of a motor via a drive shaft to transmit the rotational motion of the motor as a source of vibration for an electric toothbrush.

However, the transmission structure and the motor shaft of the conventional electric toothbrush are not well connected.

Therefore, how to solve the above problems is the direction of efforts required by researchers in the field.

Disclosure of Invention

An object of the present invention is to provide a better transmission coupling structure and effect.

To achieve the above object, the present invention provides a transmission coupling structure of an electric toothbrush, comprising: a transmission shaft, one end of which is provided with a first shaft sleeve, and the first shaft sleeve is provided with a first joint part; and a motor having a shaft with a second shaft sleeve having a second joint portion, the first and second joint portions having corresponding cross-sectional shapes for corresponding joint.

The transmission combination structure of the electric toothbrush, wherein: the first joint part is concavely arranged on the first shaft sleeve, and the second joint part is convexly arranged on the second shaft sleeve.

The transmission combination structure of the electric toothbrush, wherein: the first joint part is arranged on the first shaft sleeve in a protruding mode, and the second joint part is arranged on the second shaft sleeve in a concave mode.

The transmission combination structure of the electric toothbrush, wherein: the first engagement portion has any one of a straight section, a cross section, a large section, a meter section, and a gear section.

The transmission combination structure of the electric toothbrush, wherein: the second joint portion has any one of a straight section, a cross section, a large section, a meter section and a gear section.

The transmission combination structure of the electric toothbrush, wherein: the first joint part has a polygonal cross section.

The transmission combination structure of the electric toothbrush, wherein: the second joint part has a polygonal cross section.

The transmission combination structure of the electric toothbrush, wherein: the first joint part and the second joint part are fixed by any one of adhesion, clamping, tight fitting and welding.

By means of the design, the invention can achieve better transmission combination structure and effect.

Drawings

FIG. 1 is an exploded perspective view of one embodiment of the drive coupling structure of the electric toothbrush of the present invention;

FIG. 2 is a perspective assembly view of one embodiment of the drive coupling structure of the electric toothbrush of the present invention;

FIGS. 3a and 3b are schematic sectional views of first and second coupling parts of a driving coupling structure of an electric toothbrush according to the present invention;

FIGS. 4a and 4b are schematic sectional views of first and second coupling parts of a driving coupling structure of an electric toothbrush according to the present invention;

FIGS. 5a and 5b are schematic sectional views of first and second coupling parts of a driving coupling structure of an electric toothbrush according to the present invention;

FIGS. 6a and 6b are schematic sectional views of first and second coupling parts of a driving coupling structure of an electric toothbrush according to the present invention;

FIGS. 7a and 7b are schematic sectional views of first and second coupling parts of a driving coupling structure of an electric toothbrush according to the present invention;

FIGS. 8a and 8b are schematic sectional views of first and second coupling parts of a driving coupling structure of an electric toothbrush according to the present invention;

fig. 9 is a schematic view of an alternative embodiment of a drive coupling structure of the electric toothbrush of the present invention.

Description of reference numerals: a drive shaft 10; a first bushing 11; a first engaging portion 12; a motor 30; a rotating shaft 31; a second bushing 32; a second engaging portion 33.

Detailed Description

The above objects, together with the structural and functional features thereof, are accomplished by the preferred embodiments according to the accompanying drawings.

Referring to fig. 1 to 2, there are shown an exploded perspective view and an assembled perspective view of an embodiment of a transmission coupling structure of an electric toothbrush according to the present invention, wherein the transmission coupling structure of the electric toothbrush comprises a transmission shaft 10 and a motor 30.

The transmission shaft 10 has a first sleeve 11 at one end, the first sleeve 11 has a first engaging portion 12, and the first engaging portion 12 is shown as being recessed in the first sleeve 11.

The motor 30 has a rotating shaft 31, the rotating shaft 31 is provided with a second shaft sleeve 32, the second shaft sleeve 32 has a second engaging portion 33, the second engaging portion 33 is shown as protruding from the second shaft sleeve 32, and the first and second engaging portions 12, 33 have corresponding cross-sectional shapes to engage with each other, so as to transmit the rotation of the motor 3 when the motor 3 rotates.

Wherein the first engaging portion 12 has a cross-shaped cross-section and the second engaging portion 33 also has a cross-shaped cross-section corresponding to the first engaging portion 12. In addition, the first joint portion 12 may also be selected to have any one or any geometric cross-section of a one-to-one cross-section (as shown in fig. 3 a), a one-meter cross-section (as shown in fig. 4 a), a gear-shaped cross-section (as shown in fig. 5 a), a large cross-section (as shown in fig. 6 a), and a polygonal cross-section (as shown in fig. 7b and 8 b), and the second joint portion 33 may also have any one or any geometric cross-section of a one-to-one cross-section (as shown in fig. 3 b), a one-meter cross-section (as shown in fig. 4 b), a gear-shaped cross-section (as shown in fig. 5 b), a large cross-section (as shown in fig. 6 b), and a polygonal cross-section (as shown in fig. 7b and 8 b) corresponding to the first joint.

The first and second engaging portions 12 and 33 are fixed by any one of adhesion, engagement, interference fit and welding.

In an alternative embodiment, the first engaging portion 12 is shown as being convex on the first sleeve 11 and the second engaging portion 33 is shown as being concave on the second sleeve 32.

By means of the design of the invention, the first joint part and the second joint part with corresponding section shapes are correspondingly jointed, so that the rotary motion of the motor can be transmitted, and the invention has better transmission combination structure and effect.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.