A toothbrush head

Abstract

This application discloses a toothbrush head, including a brush head body and a handle. The surface of the brush head body has a plurality of transverse bristle grooves arranged in a parallel array. The inner cavity of each bristle groove has a plurality of longitudinally spaced limiting ribs to separate and define multiple bristle implantation holes. The top of each limiting rib is lower than the height of the groove wall, so that after bristles are implanted into each implantation hole to form a bristle bundle, adjacent bristle bundles abut against each other on the upper side of the bristle groove to form a seamless bristle area. The spacing between adjacent bristle grooves constitutes a drainage gap. The toothbrush head provided by this application has dense bristle bundles, a reasonable structure, facilitates drainage and drying, and is easy to manufacture.

Description

Technical Field

[0001] This application relates to the field of toothbrush technology, and more particularly to a toothbrush head. Background Technology

[0002] As an essential tool for daily oral care, the toothbrush's structural design and cleaning efficiency directly impact the user's health experience. Currently, toothbrushes on the market generally suffer from insufficient bristle density, specifically manifested in excessively large gaps between bristles created by conventional bristle implantation processes. This makes it difficult to effectively clean between teeth and in the gingival sulcus, resulting in low plaque removal rates. Some toothbrushes attempt to improve cleaning by adding implantation holes and increasing bristle density; however, these improvements have drawbacks in practical application. First, increasing bristle density directly leads to an increase in the number of implantation holes, complicating the implantation process, reducing yield rates, and increasing production costs. Furthermore, the small gaps at the bristle base allow toothpaste foam, food debris, and other organic matter to accumulate during brushing. Additionally, the small gaps hinder drainage and drying, resulting in a constantly damp environment that fosters microbial growth. The combined effect of these technical defects not only reduces user comfort but also poses a risk of secondary contamination, causing inconvenience for users. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems and provide a toothbrush head. The bristles of this application are dense, have a reasonable structure, are easy to drain and dry, and are easy to manufacture.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A toothbrush head includes a brush head body and a handle. The surface of the brush head body has a plurality of transverse bristle grooves arranged in a parallel array. The inner cavity of each bristle groove has a plurality of limiting ribs extending longitudinally at intervals to separate and define a plurality of bristle holes. The top of each limiting rib is lower than the height of the groove wall of the bristle groove, so that after bristles are implanted into each bristle hole to form a bristle bundle, adjacent bristle bundles abut against each other on the upper side of the bristle groove to form a seamless bristle area. The gap formed between adjacent bristle grooves constitutes a drainage gap.

[0006] In this application, the surface of the brush head body is provided with multiple transverse bristle grooves. By setting longitudinally spaced limiting ribs within each bristle groove, with a height lower than the groove itself, the limiting ribs can be hidden within the bristles after bristle implantation. The bristle bundles implanted in adjacent bristle holes abut against each other above the bristle grooves, forming a seamless, elongated, high-density bristle bundle. This ensures visual and physical continuity of the bristle density, effectively increasing the bristle bundle density and enhancing the brush head's cleaning efficiency. When brushing horizontally, the bristles have a large contact area, allowing for efficient plaque removal. When brushing vertically, it can effectively reach into the gaps between teeth for cleaning, and significantly simplifies the bristle implantation process. It avoids the problems of high bristle tuft positioning accuracy and high bristle implantation difficulty caused by excessively long implantation holes, improves the production yield and reduces manufacturing costs, while ensuring the tension of the bristle tufts. The natural spacing between adjacent implantation grooves forms a wide drainage gap, which can quickly drain liquids and foams, prevent food residue and toothpaste from accumulating, and promote brush head drying. It fundamentally solves the hygiene hazards of high-density brush heads being prone to dirt accumulation, difficult to dry, breeding microorganisms and causing secondary pollution and odor.

[0007] In one embodiment, the height of the limiting rib is less than 1 / 3 of the height of the tufting groove wall.

[0008] In one embodiment, the tufting groove is a long, rectangular groove.

[0009] In one embodiment, the brush head body has a mounting hole in the middle that is parallel to the bristle groove, and a cleaning strip made of elastic material is installed in the mounting hole.

[0010] In one embodiment, the cleaning strip is fixed to the mounting hole by secondary injection molding.

[0011] In one embodiment, the height of the cleaning strip is less than the height of the bristles in the tuft.

[0012] In one embodiment, the cleaning strip is made of TPE or TPR material.

[0013] In one embodiment, the cleaning strip is made of silicone.

[0014] In one embodiment, the limiting rib is trapezoidal in shape.

[0015] In one embodiment, the bristles are single-pointed bristles, with the tip of each single-pointed bristle higher than the rounded end, and the tip to the rounded end of the single-pointed bristles are aligned in the same direction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a toothbrush head provided by this utility model;

[0017] Figure 2 A schematic diagram of the structure of the toothbrush head with cleaning strip provided by this utility model;

[0018] Figure 3 An exploded view of the toothbrush head with cleaning strip provided by this utility model;

[0019] Figure 4 A schematic diagram of the limiting rib provided in another embodiment of this utility model. Detailed Implementation

[0020] This application provides a toothbrush head to solve the technical problems of existing high-density bristle toothbrushes accumulating organic matter such as toothpaste foam and food residue during brushing, and the difficulty in draining and drying due to the small gaps at the base of the bristles.

[0021] To make the inventive objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Please see Figures 1 to 4 This application provides a toothbrush head, including a brush head body 100 and a brush handle 200. The surface of the brush head body 100 has a plurality of transverse bristle grooves 110 arranged in a parallel array. The inner cavity of each bristle groove 110 has a plurality of limiting ribs 120 extending longitudinally at intervals to separate and define a plurality of bristle holes 130. The top height of the limiting ribs 120 is lower than the height of the groove wall of the bristle groove 110. This is so that after bristles are implanted into each bristle hole 130 to form a bristle bundle, adjacent bristle bundles abut against each other on the upper side of the bristle groove to form a seamless bristle area. The gap formed between adjacent bristle grooves 110 constitutes a drainage gap.

[0023] Specifically, the brush head body 100 has multiple transverse bristle planting grooves 110 on its surface. The inner cavity of each bristle planting groove 110 is divided by limiting ribs 120, forming multiple bristle planting holes 130. During bristle planting, the bristle bundles can be fixed into the bristle planting holes 130 respectively. In this embodiment, the bristle planting process uses existing bristle planting techniques to implant the bristle into the bristle planting holes 130. For example, by injection molding, the material at the bottom of the bristle planting hole 130 is heated to melt and wrap around the pre-fused anchor points at the root of the bristle bundle, thus fixing the bristle bundle. The limiting ribs 120 constrain the dividing of the bristle planting grooves 110, ensuring the tension of the bristle bundles and reducing the difficulty and precision of bristle planting, simplifying the bristle planting process and reducing production costs. In addition, the height of the limiting rib 120 is lower than the height of the bristle groove 110. After the bristles are inserted into the bristle hole 130, the limiting rib 120 can be hidden in the bristles. The bristle bundles inserted into adjacent bristle holes 130 in the same bristle groove 110 abut against each other on the upper side of the bristle groove 110 to form a high-density seamless bristle bundle. The bristles of the bristle groove 110 can form an integral horizontal bristle bundle, which increases the contact area between the bristles and the tooth surface when the user brushes their teeth, and can effectively clean dental plaque. There is a gap between multiple bristle grooves 110, which forms a drainage gap to ensure that the bristle bundles of each bristle groove 110 can drain water and dirt through the drainage gap, ensuring the dryness of the bristles and preventing the growth of bacteria.

[0024] Furthermore, in this embodiment, the height of the limiting rib 120 is less than 1 / 3 of the height of the tufting groove 110. This ensures that while simplifying the tufting process and reducing the difficulty of tufting by dividing the tufting groove 110, the limiting rib 120 does not affect the density of the bristles and can be hidden at the root of the bristle bundle, avoiding affecting the flexible movement of the bristles during brushing. Moreover, the tufting groove 110 is a long rectangular groove, which facilitates the precise processing and arrangement of the limiting rib 120, improves the uniformity of the tufting hole 130, and is compatible with the injection molding process of the brush head body 100, reducing production difficulty.

[0025] For details, please refer to [link / reference]. Figure 3The brush head body 100 has a mounting hole 140 in the middle, parallel to the bristle groove 110. A cleaning strip 150 made of elastic material is installed in the mounting hole 140. The cleaning strip 150 is formed by secondary injection molding in the mounting hole 140. In this embodiment, the cleaning strip 150 is fixed to the mounting hole 140 by secondary injection molding and is made of TPE or TPR material, which gives the cleaning strip 150 good elasticity and can assist in cleaning. When the user uses it, the cleaning strip 150 can assist the bristles in cleaning the tooth surface efficiently. It works with the bristles to improve cleaning efficiency. The height of the cleaning strip 150 is less than the height of the bristles in the bristle groove 110 to avoid obstructing the cleaning surface of the bristles and affecting the cleaning effect of the bristles. In addition, in another embodiment, the cleaning strip 150 can be made of silicone. When the cleaning strip 150 is made of silicone, it is fixed to the brush head body by vulcanization. The cleaning strip made of silicone also has good elasticity, which not only assists in cleaning but also provides a better user experience.

[0026] In another embodiment, the limiting rib 120 is trapezoidal. The limiting rib 120 in the bristle planting groove 110 is generally trapezoidal, which facilitates bristle planting in the bristle planting groove 110. At the same time, because the sidewall of the limiting rib 120 is inclined, it can be better hidden in the bristle bundle, and the upper density of the bristles is not easily affected by the limiting rib 120.

[0027] Furthermore, the bristles are single-pointed bristles, with the tip of each bristle higher than its rounded end, and the arrangement direction of the tips to the rounded end of the bristles is consistent. The higher tip of the single-pointed bristles can reach deep into the gingival sulcus between teeth, improving cleaning ability. The consistent relative height direction of all bristle tips and rounded ends ensures that the bristle tips can work synergistically and evenly on the tooth surface during brushing, forming a consistent cleaning force field.

[0028] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A toothbrush head, characterized in that, The brush head includes a brush head body and a brush handle. The surface of the brush head body has several transverse bristle grooves arranged in a parallel array. The inner cavity of each bristle groove has multiple limiting ribs extending longitudinally at intervals to separate and define multiple bristle holes. The top of each limiting rib is lower than the height of the groove wall, so that after bristles are implanted into each bristle hole to form a bristle bundle, adjacent bristle bundles abut against each other on the upper side of the bristle groove to form a seamless bristle area. The spacing between adjacent bristle grooves constitutes a drainage gap.

2. The toothbrush head of claim 1, wherein, The height of the limiting rib is less than 1 / 3 of the height of the tuft wall.

3. The toothbrush head of claim 1, wherein, The tufting groove is a long, rectangular groove.

4. The toothbrush head of claim 1, wherein, The brush head body has a mounting hole in the middle that is parallel to the bristle groove, and a cleaning strip made of elastic material is installed in the mounting hole.

5. The toothbrush head of claim 4, wherein, The cleaning strip is fixed to the mounting hole by secondary injection molding.

6. The toothbrush head of claim 4, wherein, The height of the cleaning strip is less than the height of the brush bristles.

7. The toothbrush head of claim 4, wherein, The cleaning strip is made of TPE or TPR material.

8. The toothbrush head of claim 4, wherein, The cleaning strip is made of silicone.

9. The toothbrush head of claim 1, wherein, The limiting rib is trapezoidal in shape.

10. The toothbrush head of claim 1, wherein, The bristles are single-pointed bristles, with the tip of each single-pointed bristle higher than the rounded end, and the arrangement direction of the tip to the rounded end of the single-pointed bristles is consistent.

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