WO2022001369A1

WO2022001369A1 - Toothbrush

Info

Publication number: WO2022001369A1
Application number: PCT/CN2021/092431
Authority: WO
Inventors: 徐振武; 戴晓国; 张常进; 张红涛
Original assignee: 上海携福电器有限公司
Priority date: 2020-06-28
Filing date: 2021-05-08
Publication date: 2022-01-06
Also published as: CN212938595U

Abstract

Provided is a toothbrush, which comprises a brush handle (10) and a brush head (20). The brush handle (10) comprises a grab handle (11) and a connecting shaft (12) connected to one end of the grab handle (11). The brush head (20) is provided with a connecting cavity (21); the connecting shaft (12) is used for being inserted into the connecting cavity (21) and the connecting shaft (12) is used for being connected to the brush head (20) in a clamped manner. The connecting shaft (12) is provided with a clamping groove (121); the brush head (20) is provided with an elastic clamping member (22) arranged on the cavity wall of the connecting cavity (21); the elastic clamping member (22) can match the clamping groove (121) in a clamped manner; or the clamping groove (121) is arranged in the cavity wall of the connecting cavity (21), the connecting shaft (12) is provided with the elastic clamping member (22), and the elastic clamping member (22) can match the clamping groove (121) in a clamped manner.

Description

toothbrush

This application claims the priority of the Chinese patent application with the application number 202021221703.4 and the invention name "toothbrush" filed in the China Patent Office on June 28, 2020, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the technical field of oral cleaning appliances, in particular to a toothbrush.

Background technique

Toothbrushes are a necessity in daily life. After a long time of use, bacteria can easily accumulate on the bristles, which is not conducive to oral health. To use a toothbrush healthily, you need to replace the toothbrush every three months at most. In response to this situation, there are toothbrushes with replaceable brush heads in the prior art. However, when the brush head and the brush handle are matched, either the brush head will become loose after long-term use, which will cause the brush head to fall easily; or the connection between the brush head and the brush handle cannot be guaranteed after the brush head is replaced. , There is a good alignment between the brush head and the brush handle, which affects the use effect.

technical problem

One of the purposes of the embodiments of the present application is to solve the technical problem of poor connection effect between the brush head and the handle of the toothbrush in the prior art.

technical solutions

In order to solve the above-mentioned technical problems, the technical solutions adopted in the embodiments of the present application are:

A toothbrush includes a brush handle and a brush head, the brush handle includes a handle and a connection shaft connected to one end of the handle, the brush head is provided with a connection cavity, and the connection shaft is used to be inserted into the inside the connection cavity and make the brush head snapped with the connection shaft;

Wherein, the connecting shaft is provided with a snap groove, the brush head has an elastic snap piece arranged on the cavity wall of the connection cavity, and the elastic snap piece can be snap-fitted with the snap slot;

Alternatively, a cavity wall of the connection cavity is provided with a clamping slot, the connecting shaft has an elastic clamping piece, and the elastic clamping piece can be engaged with the clamping slot.

Optionally, when the brush head has the elastic clip, the elastic clip includes an elastic connecting part and a clipping part, one end of the elastic connecting part is connected to the inner wall of the connecting cavity, and the elastic connecting part is connected to the inner wall of the connecting cavity. The other end of the connecting part is connected with the clamping part, and the clamping part is spaced apart from the inner wall of the connection cavity;

When the connecting shaft has the elastic clip, the elastic clip includes an elastic connecting part and a clipping part, one end of the elastic connecting part is connected to the connecting shaft, and the other end of the elastic connecting part is connected to the connecting shaft. The clamping portion is connected, and the clamping portion is spaced from the connecting shaft.

Optionally, the latching portion is in the shape of a barb, and the latching slot is adapted to the latching portion.

Optionally, the connecting shaft is in the shape of a polygonal column, and the cavity wall of the connecting cavity is adapted to the connecting shaft.

Optionally, the connecting shaft is cylindrical, the connecting shaft is provided with a first limiting plane, the cavity wall of the connecting cavity is provided with a second limiting plane, and the first limiting plane is used for Fitting with the second limiting plane to limit the rotation of the connecting shaft.

Optionally, the first limiting plane is formed by cutting the end of the connecting shaft toward the handle.

Optionally, the central axis of the connecting shaft coincides with the central axis of the handle.

Optionally, the handle is provided with a conical connecting section, the connecting cavity has a shaft-shaped cavity and a conical cavity that communicate with each other, the conical connecting section is inserted into the conical cavity, and the connecting A shaft is inserted into the tapered cavity.

beneficial effect

The beneficial effects of the toothbrush provided by the embodiments of the present application: compared with the prior art, the toothbrush of the present application, when connecting the brush head and the brush handle, inserts the connecting shaft into the connecting cavity, during the insertion process, when the elastic card The connection between the brush head and the brush handle is completed by snapping the parts into the card slot. The cooperation between the elastic clip and the card slot can prevent the relative loosening between the brush head and the brush handle during use, and the connection structure is simple. , the connection effect is good, and it is easy to use.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or exemplary technologies. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic structural diagram of a toothbrush provided by an embodiment of the application;

Fig. 2 is the exploded structure schematic diagram of the toothbrush of Fig. 1;

3 is a schematic cross-sectional structure diagram of the toothbrush of FIG. 1;

Fig. 4 is the partial enlarged structure schematic diagram of A place in Fig. 3;

Fig. 5 is the structural representation of the brush head in Fig. 3;

Among them, each reference sign in the figure:

10—Brush handle;

11—handle; 12—connecting shaft; 111—conical connecting segment; 121—card slot; 122—first limit plane;

20—Brush head;

21—connecting cavity; 22—elastic clip; 23—second limit plane; 211—shaft-shaped cavity; 212—conical cavity; 221—elastic connection part; 222—clamping part.

Embodiments of the present invention

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of description, rather than indicating or implying the referred device Or the elements must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be construed as a limitation to the present application, and those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations. The terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance or implying indicating the number of technical features. "Plurality" means two or more, unless expressly specifically limited otherwise.

In order to illustrate the technical solutions described in the present application, a detailed description is given below with reference to the specific drawings and embodiments.

As shown in FIG. 1 , FIG. 2 , and FIG. 3 , the toothbrush provided by the embodiment of the present application will now be described. The toothbrush includes a brush handle 10 and a brush head 20. The brush handle 10 includes a handle 11 and a connecting shaft 12 connected to one end of the handle 11. The brush head 20 is provided with a connecting cavity 21, and the connecting shaft 12 is used to be inserted into the connecting cavity 21. inside and make the brush head 20 snap-fit with the connecting shaft 12 .

The connecting shaft 12 is provided with a slot 121 , and the brush head 20 has an elastic clip 22 arranged on the cavity wall of the connection cavity 21 , and the elastic clip 22 can be engaged with the slot 121 by clipping.

Alternatively, the cavity wall of the connection cavity is provided with a clamping slot, the connecting shaft has an elastic clamping piece, and the elastic clamping piece can be engaged with the clamping slot.

Compared with the prior art, in the toothbrush provided by the embodiment of the present application, when connecting the brush head 20 and the brush handle 10, the connecting shaft 12 is inserted into the connecting cavity 21. During the insertion process, when the elastic clip 22 is locked in The connection between the brush head 20 and the brush handle 10 is completed in the card slot 121. Through the cooperation between the elastic clip 22 and the card slot 121, the relative loosening between the brush head 20 and the brush handle 10 can be prevented during use. The connection structure is simple, the connection effect is good, and the use is convenient.

In another embodiment of the present application, as shown in FIGS. 3 and 5 , when the brush head 20 has an elastic clip 22 , the elastic clip 22 includes an elastic connection part 221 and a clip part 222 . One end is connected to the inner wall of the connection cavity 21, the other end of the elastic connection part 221 is connected to the clamping part 222, and the clamping part 222 is spaced apart from the inner wall of the connection cavity 21; when the connecting shaft has an elastic clamping part, the elastic clamping part includes elastic The connecting part and the clamping part, one end of the elastic connecting part is connected with the connecting shaft, the other end of the elastic connecting part is connected with the clamping part, and the clamping part and the connecting shaft are arranged at intervals. Specifically, when the end of the elastic connection portion 221 connected to the clamping portion 222 is in the initial state, the clamping portion 222 is spaced apart from the inner wall of the connection cavity 21 , leaving an appropriate elastic space. When the connection shaft 12 is extended into the connection cavity 21 After the connecting shaft 12 remains in contact with the engaging portion 222, the engaging portion 222 moves toward the cavity wall of the connecting cavity 21 for a certain distance, so that the elastic connecting portion 221 has a certain elasticity until the engaging portion 222 slides in. In the card slot 121 , the connection shaft 12 is fixed in the connection cavity 21 to realize the connection and fixation of the brush head 20 .

In another embodiment of the present application, as shown in FIG. 3 , the clamping portion 222 is in the shape of a barb, and the clamping slot 121 is matched with the clamping portion 222 . Specifically, by setting the engaging portion 222 in the shape of a barb, when the connecting shaft 12 is inserted into the connecting cavity 21, the engaging portion 222 slides into the engaging slot 121, thereby stably fixing the connecting shaft 12 on the connecting shaft 12. In the cavity 21, the connection effect is good.

In another embodiment of the present application, the connecting shaft 12 is in the shape of a polygonal column, and the cavity wall of the connecting cavity 21 is adapted to the connecting shaft 12 . Specifically, by setting the connecting shaft 12 into a polygonal column shape, the surface of the connecting shaft 12 is surrounded by a plurality of planes, and by making the cavity wall of the connecting cavity 21 fit with the connecting shaft 12, so that the connecting shaft 12 is inserted into the connecting shaft 12. When connecting the inner wall of the cavity 21, the plane on the connecting shaft 12 and the plane on the cavity wall of the connecting cavity 21 fit each other, thereby restricting the rotation of the connecting shaft 12 in the connecting cavity 21, and the use effect is good.

In another embodiment of the present application, as shown in FIGS. 2 , 3 and 4 , the connecting shaft 12 is cylindrical, the connecting shaft 12 is provided with a first limiting plane 122 , and the cavity wall of the connecting cavity 21 is provided with a first limiting plane 122 . There is a second limit plane 23 , and the first limit plane 122 is used to fit with the second limit plane 23 to limit the rotation of the connecting shaft 12 . Specifically, when the connecting shaft 12 is cylindrical, by setting the first limiting plane 122 on the connecting shaft 12 , the second limiting plane 23 is correspondingly provided on the cavity wall of the connecting cavity 21 . When inserted into the connecting cavity 21 , the first limiting plane 122 is abutted with the second limiting plane 23 , thus restricting the rotation of the connecting shaft 12 in the connecting cavity 21 , and the use effect is good.

In another embodiment of the present application, as shown in FIGS. 2 , 3 and 4 , the first limiting plane 122 is formed by cutting the end of the connecting shaft 12 toward the handle 11 . Specifically, by directly cutting the first limiting plane 122, the structure of the connecting shaft 12 is simpler and easier to process; In this way, the connecting shaft 12 is easily inserted into the connecting cavity 21, and the installation is convenient.

In another embodiment of the present application, as shown in FIGS. 2 and 3 , the central axis of the connecting shaft 12 coincides with the central axis of the handle 11 . Specifically, by making the connecting shaft 12 and the handle 11 on the same central axis, it is easy to align the brush head 20, so that the center of gravity of the brush head 20 is also on the axis, and the use effect is good.

In another embodiment of the present application, as shown in FIGS. 2 , 3 and 5 , the handle 11 is provided with a conical connecting section 111 , and the connecting cavity 21 has a shaft-shaped cavity 211 and a conical cavity 212 that communicate with each other. , the conical connecting section 111 is inserted into the conical cavity 212 , and the connecting shaft 12 is inserted into the conical cavity 212 . Specifically, the conical connection section 111 is beneficial to further fix the brush head 20, so that the connection of the brush head 20 to the brush handle 10 is more stable, and the use effect is good.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

A toothbrush is characterized in that it includes a brush handle and a brush head, the brush handle includes a handle and a connecting shaft connected to one end of the handle, the brush head is provided with a connecting cavity, and the connecting shaft is used for is inserted in the connection cavity, and the brush head is clamped with the connection shaft;

Wherein, the connecting shaft is provided with a snap groove, the brush head has an elastic snap piece arranged on the cavity wall of the connection cavity, and the elastic snap piece can be snap-fitted with the snap slot;

Alternatively, a cavity wall of the connection cavity is provided with a clamping slot, the connecting shaft has an elastic clamping piece, and the elastic clamping piece can be engaged with the clamping slot.
The toothbrush according to claim 1, wherein: when the brush head has the elastic clip, the elastic clip includes an elastic connecting part and a clip, and one end of the elastic connecting part is connected to the elastic clip. the inner wall of the connection cavity is connected, the other end of the elastic connection part is connected with the clamping part, and the clamping part is arranged at intervals from the inner wall of the connection cavity;

When the connecting shaft has the elastic clip, the elastic clip includes an elastic connecting part and a clipping part, one end of the elastic connecting part is connected to the connecting shaft, and the other end of the elastic connecting part is connected to the connecting shaft. The clamping portion is connected, and the clamping portion is spaced from the connecting shaft.
The toothbrush according to claim 2, wherein the engaging portion is in the shape of a barb, and the engaging groove is adapted to the engaging portion.
The toothbrush according to claim 1, wherein the connecting shaft is in the shape of a polygonal column, and the cavity wall of the connecting cavity is adapted to the connecting shaft.
The toothbrush according to claim 1, wherein the connecting shaft is cylindrical, the connecting shaft is provided with a first limiting plane, and the cavity wall of the connecting cavity is provided with a second limiting plane, The first limiting plane is used to fit with the second limiting plane to limit the rotation of the connecting shaft.
The toothbrush according to claim 5, wherein the first limiting plane is formed by cutting the end of the connecting shaft toward the handle.
The toothbrush according to any one of claims 1 to 6, wherein the central axis of the connecting shaft coincides with the central axis of the handle.
The toothbrush according to any one of claims 1 to 6, wherein the handle is provided with a conical connecting section, the connecting cavity has a shaft-shaped cavity and a conical cavity that communicate with each other, and the conical cavity The connecting segment is inserted into the conical cavity, and the connecting shaft is inserted into the conical cavity.