Copper-free bristle-planting toothbrush head

Abstract

The utility model relates to the technical field of toothbrushes, and discloses a copper-free bristle-planting toothbrush head which comprises a rod body, a bristle-planting block and a bristle bundle, the bristle-planting block is fixedly connected to the rod body, a positioning groove is formed in the top face of the bristle-planting block, a plurality of bristle-planting holes are formed in the bottom face of the bristle-planting block, a positioning piece is arranged in the positioning groove, and the bristle bundle is fixedly connected to the rod body. One end of the bristle bundle penetrates through the bristle planting hole and then is fixedly connected to the positioning piece, and the top of the bristle planting block is fixedly connected with a protective rubber coating. According to the utility model, the flocking block and the rod body are designed and combined into a whole and are subjected to one-step injection molding, so that the bending resistance of the flocking block is greatly improved, the risk that the flocking block and the rod body are stripped and fall off is thoroughly solved, and the production and manufacturing processes can be reduced, thereby saving the manufacturing cost and being more practical.

Description

Technical Field

[0001] This utility model relates to the field of toothbrush technology, specifically a copper-free bristle toothbrush head. Background Technology

[0002] Copper-free bristle implantation technology refers to the implantation of toothbrush bristles using a copper-free process, eliminating the need for metal plates (such as copper, aluminum, or iron) to hold the bristles in place. Traditional toothbrushes typically use metal plates to secure the bristles, a step avoided by copper-free bristle implantation technology. The production process of copper-free bristle implantation brush heads involves inserting the free ends of the bristles through the pores of the toothbrush head, and then using a heat-pressing device to heat-press the bristle roots to the toothbrush head, forming a single unit. This method not only improves the tensile strength of the bristle bundles but also avoids the problems of metal oxidation and corrosion. Because copper-free bristle implantation brush heads do not have metal plates, they do not come into contact with metal oxides in the oral cavity, thus avoiding the potential damage to the oral cavity caused by metal corrosion. This makes copper-free bristle implantation brush heads healthier and safer.

[0003] Currently, copper-coated brush heads on the market have bristle implants that are separated from the brush handle and assembled through secondary processing. This type of assembly results in poor bending resistance of the bristle implants. When subjected to bending forces, there is a risk that the bristle implants and the brush handle may separate and fall off. Furthermore, the secondary processing of the bristle implants and the brush handle involves multiple manufacturing steps and high manufacturing costs. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing copper-free bristle-embedded toothbrush heads are at risk of detachment from the bristle implants when subjected to bending forces. Furthermore, the bristle implants and brush handles are assembled through secondary processing, resulting in numerous manufacturing steps and high manufacturing costs.

[0005] To solve the above problems, the technical solution of this utility model is as follows: a copper-free bristle toothbrush head, comprising a rod, a bristle block and a bristle bundle, wherein the bristle block is fixedly connected to the rod, the top surface of the bristle block is provided with a positioning groove, the bottom surface is provided with a plurality of bristle holes, a positioning plate is provided in the positioning groove, one end of the bristle bundle passes through the bristle hole and is fixedly connected to the positioning plate, and a protective coating is fixedly connected to the top of the bristle block.

[0006] Furthermore, the flocking block and the rod are integrally injection molded.

[0007] Furthermore, the bristle bundles and positioning plates are fixed together by hot melting.

[0008] Furthermore, the positioning piece and the flocking block are made of the same material and are fixed by heat fusion.

[0009] Furthermore, the positioning piece includes a fixing piece, the fixing piece having a through hole in the middle, and a movable piece inside the through hole.

[0010] Furthermore, the bristle bundles connected to the fixed plate and the movable plate are of different models.

[0011] The advantages of this utility model compared with the existing technology are as follows: This utility model integrates the flocking block and the rod body into one piece through injection molding, thereby greatly improving the bending resistance of the flocking block, completely solving the risk of the flocking block separating from the rod body, and reducing the manufacturing process to save manufacturing costs, making it more practical. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present invention.

[0013] Figure 2 This is a structural diagram of the connection between the flocking block and the rod body of this utility model.

[0014] Figure 3 This is a cross-sectional view of the hair-embedding block of this utility model.

[0015] As shown in the figure: 1. Rod body; 2. Hair grafting block; 2.1. Positioning groove; 2.2. Hair grafting hole; 3. Bristle bundle; 4. Positioning plate; 4.1. Fixing plate; 4.2. Movable plate; 5. Protective coating. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1 As shown, a copper-free bristle toothbrush head includes a shaft 1, a bristle block 2, and a bristle bundle 3. The bristle block 2 and the shaft 1 are integrally injection molded, and a protective coating 5 is fixedly attached to the top of the bristle block 2.

[0018] like Figure 2 and Figure 3 As shown, the bristle block 2 is fixed to the rod body 1. The top surface of the bristle block 2 is provided with a positioning groove 2.1, and the bottom surface is provided with a plurality of bristle holes 2.2. A positioning piece 4 is provided in the positioning groove 2.1. One end of the bristle bundle 3 passes through the bristle hole 2.2 and is fixed to the positioning piece 4. The bristle bundle 3 and the positioning piece 4 are fixed together by heat fusion. The positioning piece 4 and the bristle block 2 are fixed together by heat fusion.

[0019] The positioning piece 4 includes a fixed piece 4.1, which has a through hole in the middle and a movable piece 4.2 inside the through hole. The bristle bundles 3 connected to the fixed piece 4.1 and the movable piece 4.2 are of different models.

[0020] In practical use, the bristle block 2 and the rod are designed and combined into one piece by injection molding, which greatly improves the bending resistance of the bristle block 2, completely solves the risk of the bristle block 2 peeling off from the rod, and can reduce the production and manufacturing process, thereby saving manufacturing costs; the bristle bundle 3 is inserted into the bristle hole 2.2 by bristle implantation equipment and fixed by hot melting, and finally the top of the bristle block 2 is wrapped with glue.

[0021] The bristle bundles 3 of the fixed plate 4.1 and the movable plate 4.2 can be selected in different models as needed. For example, the bristle bundles 3 installed on the fixed plate 4.1 are longer or slightly curved so as to better fit the tooth surface and interdental spaces and improve cleaning efficiency; the bristle bundles 3 installed on the movable plate 4.2 are short and straight. The short and straight central bristles may also be more likely to reach hard-to-clean areas of the teeth, such as the inner and outer sides of the back teeth.

[0022] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A copper-free bristled toothbrush head comprising a stem (1), a bristle block (2) and a bundle of bristles (3), characterized in that: The bristle-implanting block (2) is fixed to the rod body (1), the top surface of the bristle-implanting block (2) is provided with a positioning groove (2.1), the bottom surface is provided with a plurality of bristle-implanting holes (2.2), the positioning groove (2.1) is provided with a positioning sheet (4), one end of the bristle bundle (3) is fixed to the positioning sheet (4) after penetrating through the bristle-implanting hole (2.2), and the top of the bristle-implanting block (2) is fixed with a protective rubber coating (5).

2. A copper-free bristled toothbrush head according to claim 1, wherein: The bristle-implanting block (2) and the rod body (1) are integrally injection molded.

3. A copper-free bristled toothbrush head according to claim 1, wherein: The bristle bundle (3) and the positioning sheet (4) are fixed and formed by hot melting.

4. A copper-free bristled toothbrush head according to claim 3, wherein: The positioning sheet (4) is made of the same material as the bristle-implanting block (2) and is fixed by hot melting.

5. A copper-free bristled toothbrush head according to claim 4, wherein: The positioning sheet (4) comprises a fixed sheet (4.1), a through hole is formed in the middle of the fixed sheet (4.1), and a movable sheet (4.2) is arranged in the through hole.

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