CN211092339U

CN211092339U - Brush head connecting structure of toothbrush

Info

Publication number: CN211092339U
Application number: CN201921748355.3U
Authority: CN
Inventors: 徐振武; 戴晓国
Original assignee: Shanghai Shift Electrics Co Ltd
Current assignee: Shanghai Shift Electrics Co Ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-07-28
Anticipated expiration: 2029-10-17

Abstract

The utility model provides a brush head connection structure of toothbrush, install the brush head on the brush holder including brush holder and detachably, the upper end of brush holder is equipped with the connecting rod, and the lower extreme of brush head corresponds the connecting rod and is formed with the slot, and the slot inner wall is equipped with the elastically positioned piece, and the one end that the connecting rod is close to the brush holder is equipped with the chamber that holds that matches with the elastically positioned piece. The utility model provides a toothbrush connection structure, the connection stability of brush head and brush holder is high, the installation is convenient with the dismantlement, reliability when both having ensured daily use also does benefit to the frequent change of brush head.

Description

Brush head connecting structure of toothbrush

Technical Field

The utility model relates to a small household electrical appliances field especially relates to a toothbrush of removable brush head.

Background

The toothbrush is an essential personal cleaning article in daily life, can be used for cleaning oral cavity and teeth by matching with toothpaste, and generally speaking, a great amount of bacteria can grow and breed on the brush head of the toothbrush only after the toothbrush is used for a period of time. Health and hygiene issues generally the frequency of toothbrush updates should be between two and three months. However, in the case of about sixty billion people worldwide, each person replaces one toothbrush every three months, and the average number of discarded toothbrushes per day is about 6666 ten thousand, which causes serious waste and environmental pollution.

Disclosure of Invention

An object of the utility model is to provide a structure is ingenious, connect convenient, and can effectively prevent the first loose first connection structure of electric toothbrush who takes off of brush.

The utility model provides a first connection structure of brush of toothbrush, install the brush head on the brush holder including brush holder and detachably, the upper end of brush holder is equipped with the connecting rod, the lower extreme of brush head corresponds the connecting rod and is formed with the slot, a serial communication port, the slot inner wall is equipped with the elastically positioned piece, the connecting rod be close to the one end of brush holder be equipped with the chamber that holds that the elastically positioned piece matches.

Preferably, the outer wall of the connecting rod is axially provided with a groove, one end of the groove is located on the free end face of the connecting rod, and the other end of the groove is communicated with the accommodating cavity.

Preferably, the surface of the groove is formed as a slope inclined toward the free end surface of the connecting rod.

Preferably, the inner wall of the slot is provided with a convex part matched with the groove.

Preferably, the surface of the groove is provided with flexible rubber, and the groove is in interference fit with the bulge.

Preferably, the upper surface of the elastic positioning block is a slope with a low front and a high back.

Preferably, the elastic locating block is inserted into the accommodating cavity in an interference manner.

Preferably, the elastic positioning block and the accommodating cavity are multiple.

Preferably, the groove and the projection are plural.

Preferably, the outer surface of the handle and/or head is provided with a thread in the radial direction.

Compared with the prior art, the beneficial effects of the utility model reside in that: through set up the chamber and the locating piece that hold that mutually support respectively on brush holder and the brush head, the connection stability of brush head and brush holder is high, the installation is convenient with the dismantlement, reliability when both having ensured daily use also does benefit to the frequent change of brush head.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic view of a brush head connection structure according to the present invention;

FIG. 2 is a cross-sectional view of the handle of the present invention;

fig. 3 is a cross-sectional view of the brush head of the present invention.

The reference numerals in the specification are as follows:

1-brush handle; 11-a connecting rod; 111-a containment chamber; 112-a groove; 2-a brush head; 21-slot; 211-elastic positioning block; 212-lobe

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings or the orientation or position relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1 to 3, the embodiment of the present invention provides a toothbrush head connection structure, including a brush holder 1 and a brush head 2 detachably mounted on the brush holder 1, the upper end of the brush holder 1 is provided with a connection rod 11, the lower end of the brush head 2 corresponds to the connection rod 11 and is formed with a slot 21, the inner wall of the slot 21 is provided with an elastic positioning block 211, and one end of the connection rod 11 close to the brush holder 1 is provided with a containing cavity 111 matched with the elastic positioning block 211.

In the brush head connection structure provided by the embodiment, the brush head 2 is detachably mounted on the brush handle 1. The connecting rod 11 at the upper end of the brush holder 1 can be inserted into the slot 21 at the lower end of the brush head 2, in order to ensure the stability of connection, the inner wall of the slot 21 is provided with an elastic positioning block 211, and one end of the connecting rod 11 close to the brush holder 1 is provided with a corresponding accommodating cavity 111 capable of accommodating the elastic positioning block 211. The elastic positioning block can be understood as a positioning block made of elastic materials or a positioning block made of physical structures such as elastic cantilevers, and the like, and is not particularly limited, and the purpose of the elasticity is to achieve the convenience of mounting and dismounting the brush head. The elastic positioning block 211 is matched with the accommodating cavity 111, so that the connection stability of the brush head and the brush handle is guaranteed.

Referring to fig. 1 to 3, in the present embodiment, a groove 112 is axially formed in an outer wall of the connecting rod 11, one end of the groove 112 is located at a free end surface of the connecting rod 11, and the other end is communicated with the accommodating cavity 111. The groove structure of the outer wall of the connecting rod 11 is beneficial for a user to pass through the free end face of the connecting rod 11 more conveniently when the brush head is installed, and the elastic positioning block 211 smoothly reaches the accommodating cavity 111 close to one end of the brush handle 1, so that the brush head is fast and does not consume force.

Specifically, the surface of the groove 112 may be formed as a slope inclined toward the free end surface of the connecting rod 11. The inclined plane adopts the mode that one end of the connecting rod is close to the containing cavity 111 and inclines towards one end of the free end face of the connecting rod, so that the containing cavity can better clamp the positioning block after the toothbrush head is installed, and the connection stability between the toothbrush head and the toothbrush handle in the daily use process of the toothbrush is ensured.

Referring to fig. 1 to 3, in the present embodiment, the inner wall of the slot 21 is provided with a protrusion 212 matching with the groove 112. The protrusions 212 are adapted to engage the bottom and two sides of the recess 112 to effectively prevent rotation of the head relative to the handle during use of the toothbrush. Meanwhile, in order to better achieve this effect, in the present embodiment, the surface of the groove 112 is provided with an elastic rubber (not shown), and the groove and the boss are in an interference fit. It is understood that the elastic rubber can be replaced by other suitable elastic materials, and is not intended to limit the present invention.

In this embodiment, the upper surface of the elastic positioning block 211 is designed to be an inclined plane with a lower front part and a higher rear part, so that the contact area between the elastic positioning block 211 and the abutting surface of the accommodating cavity 111 is increased, and the connection stability of the brush head and the brush handle in the axial direction is better ensured.

In this embodiment, the elastic positioning block 211 is inserted into the accommodating cavity 111 with interference. With the help of the thrust that receives when the brush head inserts and the elastic characteristic of locating piece, the locating piece can realize interference fit with holding the chamber, has further strengthened the stability of being connected between brush head and the brush holder.

In this embodiment, there may be a plurality of elastic positioning blocks 211 and accommodating cavities 111. The position distribution of the elastic positioning block and the accommodating cavity is not limited, and the aim is to enhance the connection stability between the brush head and the brush handle.

In this embodiment, there may be a plurality of grooves 112 and protrusions 212, so as to further prevent the brush head from rotating and loosening, and ensure the reliability of the toothbrush in use.

In this embodiment, the outer surface of the handle 1 and/or the head 2 is provided with a thread (not shown) in the radial direction. It will be appreciated that the threads may be replaced by other structures that help to increase friction, to achieve a quicker and more labor-saving effect when installing or removing the brush head.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides a first connection structure of brush of toothbrush, includes that brush holder and detachably install the brush head on the brush holder, the upper end of brush holder is equipped with the connecting rod, the lower extreme of brush head corresponds the connecting rod and is formed with the slot, a serial communication port, the slot inner wall is equipped with elastically positioned piece, the connecting rod be close to the one end of brush holder be equipped with the chamber that holds that elastically positioned piece matches.

2. The brush head connecting structure of a toothbrush according to claim 1, wherein the outer wall of the connecting rod is provided with a groove in the axial direction, one end of the groove is located on the free end surface of the connecting rod, and the other end of the groove is communicated with the accommodating cavity.

3. The brush head connecting structure of a toothbrush according to claim 2, wherein the surface of the groove is formed as a slope inclined toward the free end surface of the connecting rod.

4. The head connecting structure according to claim 3, wherein the inner wall of the insertion groove is provided with a projection portion which is fitted to the groove.

5. The brushhead attachment structure of claim 4, wherein the surface of the recess is provided with a flexible rubber, the recess being an interference fit with the boss.

6. The head attachment structure according to claim 1, wherein the upper surface of the resilient positioning block is a slope having a lower front and a higher rear.

7. The brushhead attachment structure of claim 1, wherein the resilient locating block is inserted into the receiving cavity with interference.

8. The head attachment structure for a toothbrush according to claim 1, wherein there are a plurality of the resilient positioning blocks and the receiving cavities.

9. The head connecting structure of a toothbrush according to claim 4, wherein the grooves and the protrusions are plural.

10. The head attachment structure for a toothbrush of claim 1 wherein the outer surface of the handle and/or the head is radially threaded.