WO2022222118A1

WO2022222118A1 - Split toothbrush

Info

Publication number: WO2022222118A1
Application number: PCT/CN2021/089121
Authority: WO
Inventors: 何振东
Original assignee: 何振东
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-10-27

Abstract

A split toothbrush, comprising a toothbrush head (1) and a toothbrush handle (2), wherein the toothbrush handle (2) comprises a front handle end (24) and a rear handle end (22) connected by a handle neck (23); the toothbrush head (1) comprises a toothbrush back (11) and toothbrush bristles (12); the cross section of the toothbrush back (11) is a C-shaped structure having an upward opening, and a pair of chutes (14) are symmetrically arranged in the C-shaped structure; an upper portion of the C-shaped structure is provided with two pairs of fixing teeth (13) which protrude inwards; and the planes where the front handle end (24) and the rear handle end (22) are located are parallel to each other, the front handle end (24) is of a double-layer structure, a middle portion thereof is an upward protrusion, and four corners of the protrusion are each provided with a clamping recess (21). The problem of throwing away the toothbrush head (1) and the toothbrush handle (2) together is solved, and unnecessary waste is avoided. The split toothbrush has the advantages such as easy disassembly and assembly, reliable connection, and simple and convenient use.

Description

Split toothbrush

technical field

The utility model relates to the field of daily necessities, in particular to a toothbrush with a separate design of a brush head and a brush handle, which can be freely disassembled and assembled when brushing and gargling. The possible IPC classification numbers involved are A46B5/00, A46B11/02, A46B15/00, A61C17/34.

technical background

Most of the toothbrushes commonly used in life now have a brush head and a brush handle, and the bristles on the brush head wear out faster. Once the bristles are damaged, the entire toothbrush must be thrown away, and as most of the brush handles of the toothbrush are still relatively intact, it is bound to cause a lot of waste. Although there are also designs of detachable toothbrushes, they are either not firmly connected and easily deformed, or they are inconvenient to disassemble and cannot be used in daily life.

For example, "A Rotating Toothbrush Without Electricity" disclosed in China with Application No. 200620087277.3, the technical solution includes a brush head and a brush handle, the brush handle is composed of two sections that can rotate relatively, one section of the brush handle is provided with a stepped shaft, and the other A shaft hole matched with the stepped shaft is arranged in a section. The stepped shaft includes a rotating part, a transition part and a clamping table. A clamping groove corresponding to the clamping table is arranged in the shaft hole, and the inner diameter of the entrance of the clamping groove is smaller than the outer diameter of the clamping table. The utility model has the advantages of simple and reasonable structure, suitable process production and low production cost.

However, there are still problems such as relatively high production costs, resulting in higher production costs, additional pollution to the environment, and unsuitability for production.

Utility model content

The purpose of the utility model is to provide a split-type toothbrush, which solves the problem of throwing away the brush head and the brush handle together and avoids unnecessary waste. It has the advantages of easy disassembly, reliable connection and convenient use.

The solution adopted by the utility model is: the split-type toothbrush includes a brush head (1), a brush handle (2), and the brush handle (2) includes a brush handle front end (24) and a brush handle connected by a brush handle neck (23). The rear end of the handle (22), its technical points are:

The brush head (1) includes a brush back (11) and bristles (12). The cross section of the brush back (11) is a C-shaped structure with an upward opening, and a pair of chutes (14) are symmetrically arranged in the C-shaped structure. The C-shaped structure The upper part is provided with two pairs of fixed teeth (13) protruding inward;

The planes where the front end (24) of the brush handle and the rear end (22) of the brush handle are located are parallel to each other, and the front end (24) of the brush handle is of a double-layer structure, the middle of which is raised upward, and the four corners of the protrusion are respectively provided with sockets (21) , the convex outer edge forms a symmetrical edge boss (25) matched with the brush head chute (14), and the brush head (1) is embedded in the front end (24) of the brush handle through the fixing teeth (13).

The advantages and positive effects of the utility model are as follows: in the overall scheme, the brush head and the brush handle are assembled and limited by means of sliding insertion and clamping. It can be disassembled and assembled freely. After the toothbrush head is damaged, only the toothbrush head can be replaced without changing the brush handle or the effect of changing the brush handle less, reducing the waste of resources. At the same time, it has the functions of easy disassembly, reliable connection, convenient and practical. With a split structure, the brush handle can be made of a more durable and cost-effective material with better hand feel and toughness, which can more effectively reduce production and use costs compared to the overall structure.

The brush back of the partial structure is provided with fixed teeth and chute, and the cross section of the front end of the brush handle is in the shape of a "convex". The thin parts on both sides are used as slide rails, and the thickened part in the middle is recessed at an obtuse angle inward in the horizontal direction at both ends to form a socket, forming a shape with a wide middle and narrow ends.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the utility model.

FIG. 2 is a schematic top view of the structure of the present invention.

FIG. 3 is a schematic side view of the structure of the utility model.

Detailed ways

The specific structure of the present invention will be described in detail according to FIGS. 1 to 3 . The split-type toothbrush includes a brush head 1 and a brush handle 2. The brush handle 2 includes a brush handle front end 24 and a brush handle rear end 22 connected by a brush handle neck 23 . The brush head 1 includes a brush back 11 and bristles 12. The cross-section of the brush back 11 is a C-shaped structure with an upward opening. Inside the C-shaped structure is a pair of chutes 14 that are symmetrically arranged. The upper part of the C-shaped structure is provided with two pairs of inwardly convex Trapezoidal, semicircular or triangular fixed teeth 13; wherein, the brush head 1 is formed between the lower part of the brush back 11 and the bristles 12 using the prior art.

FIG. 2 is a top view of FIG. 1 viewed from a perspective A and a perspective B, respectively. The front end 24 of the handle and the rear end 22 of the handle are parallel to each other. The front end 24 of the handle is a double-layer structure, the middle of which is raised upward, the four corners of the upward protrusion are formed with sockets 21, and the outer edges of the protrusions form symmetrical and The brush head 1 is fitted with the edge boss 25 of the sliding groove 14 , and the brush head 1 is fitted on the front end 24 of the brush handle through the fixing teeth 13 .

When in use, align the chute 14 on both sides of the brush back with the front end of the brush handle, and push the bosses 25 on both sides of the front end of the brush handle into the chute 14 . The fixed teeth 13 protruding horizontally inward from the upper wall of the chute meet the front socket 21 on the front end 24 of the brush handle, and push forward with force. At the socket, the back of the brush is clamped at the rear socket 21 at the front end of the brush handle by its own elasticity, while another pair of fixed teeth 13 is clamped at the front socket 21, and the brush head is integrally fitted to the front end of the brush handle.

Description of reference numbers:

1 brush head

11 brush back

12 bristles

13 fixed teeth

14 Chute

2 brush handles

21 card socket

22 Brush handle rear end

23 brush handle neck

24 brush handle front

25 boss

Claims

A detachable toothbrush, comprising a brush head (1) and a brush handle (2), the brush handle (2) comprising a brush handle front end (24) and a brush handle rear end (22) connected by a brush handle neck (23), It is characterized by:

The brush head (1) includes a brush back (11) and bristles (12). The cross section of the brush back (11) is a C-shaped structure with an upward opening, and a pair of chutes (14) are symmetrically arranged in the C-shaped structure. The C-shaped structure The upper part is provided with two pairs of fixed teeth (13) that protrude inwards; the planes where the front end (24) of the brush handle and the rear end (22) of the brush handle are located are parallel to each other, and the front end (24) of the brush handle is a double-layer structure, and the middle part is upward bulge, the four corners of the bulge are respectively provided with sockets (21), the outer edge of the bulge forms a symmetrical edge boss (25) matched with the brush head chute (14), the brush head (1) passes through the fixed teeth (13) is fitted on the front end (24) of the brush handle.