A toothpaste in a toothbrush head structure with backflow quick foaming

By designing a hollowed-out groove structure and a suction cup anti-slip button inside the toothbrush head, the problems of slow toothpaste foaming and poor circulation are solved, achieving rapid foaming and even cleaning, thus improving the cleaning efficiency and hygiene safety of the toothbrush.

CN224369313UActive Publication Date: 2026-06-19HUAIAN XINGFU GRASS TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIAN XINGFU GRASS TECH CO LTD
Filing Date
2025-08-12
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing toothbrush heads have a solid structure, resulting in slow toothpaste foaming and difficulty in evenly covering the delicate areas of the mouth. Furthermore, the poor fluidity of the toothpaste liquid limits cleaning efficiency, leaving food residue in some areas.

Method used

Design a toothpaste tube with a hollowed-out groove structure inside the toothbrush head to provide a flow channel, which works with the brush bristles to create foam. The hollowed-out groove also allows for the backflow and circulation of the toothpaste liquid, enhancing air circulation. Suction cups and anti-slip buttons are added to improve grip stability.

Benefits of technology

This technology enables toothpaste to foam quickly, evenly cover all areas of the mouth, improve cleaning efficiency, prevent bacterial growth, reduce production costs, and enhance ease of use and hygiene safety.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224369313U_ABST
    Figure CN224369313U_ABST
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Abstract

This utility model discloses a toothbrush head structure that allows toothpaste to flow back and quickly foam inside the brush head. It includes a handle, a neck at one end of the handle, a head at the other end of the neck, a suspended component inside the head, a perforated groove between the suspended component and the head, a supporting rib between the suspended component and the head, several bristles on the upper surface of the head, and a suction cup at the other end of the handle. This utility model, by setting the perforated groove, provides a flow channel for toothpaste liquid and foam. Combined with the friction of the bristles, it enables the toothpaste to quickly foam during brushing. The toothpaste liquid can circulate directly to all parts of the cavity through the perforation, quickly cleaning foreign objects in the mouth and significantly improving cleaning efficiency. The perforation also enhances the air circulation of the brush head, allowing moisture between the bristles to evaporate quickly, avoiding bacterial growth caused by the damp environment of traditional solid brush heads, thus improving the hygiene and safety of toothbrush use.
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Description

Technical Field

[0001] This utility model relates to the field of toothbrush technology, specifically to a toothbrush head structure in which toothpaste can flow back and quickly foam inside the toothbrush head. Background Technology

[0002] As a basic tool for daily oral hygiene, the design and technological development of manual toothbrushes revolve around improving cleaning efficiency, user comfort, and adapting to different oral needs. The core of this is the continuous optimization of the two main components: the handle and the bristles.

[0003] Currently, most toothbrush heads on the market are solid structures with only bristles on the surface. When brushing, toothpaste needs to gradually foam through friction between the bristles and teeth and gums. This foaming process is slow, and the foam tends to concentrate in the area directly in contact with the bristles, making it difficult to quickly and evenly cover the delicate areas in the mouth, such as between teeth and the gingival sulcus. This limits cleaning efficiency. Furthermore, traditional brush heads lack circulation channels, resulting in poor flow of toothpaste within the mouth, potentially leaving food residue or plaque in some areas due to insufficient toothpaste coverage. Therefore, there is an urgent need to design a toothbrush head structure that allows toothpaste to flow back and foam quickly within the brush head to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a toothbrush head structure that allows toothpaste to flow back and foam quickly inside the toothbrush head, thereby overcoming the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A toothbrush head structure that allows toothpaste to flow back and quickly foam inside the toothbrush head includes a handle, a neck at one end of the handle, a head at one end of the neck, a suspended member inside the head, a hollow groove between the suspended member and the head, a supporting rib between the suspended member and the head, a plurality of bristles on the upper surface of the head, and a suction cup at the other end of the handle.

[0007] In a preferred embodiment of this utility model, a hollow strip is provided on the handle and a hollow strip is provided on the neck.

[0008] In a preferred embodiment of this utility model, an anti-slip button is provided at the connection between the handle and the neck, and the anti-slip button is cross-shaped.

[0009] In a preferred embodiment of this utility model, the length and width of the head are 10-50mm × 5-20mm, and the width of the hollow groove is 0.1-5mm.

[0010] 5. In a preferred embodiment of this utility model, the connection between the supporting rib and the suspended part and the head is an irregular glued structure.

[0011] In a preferred embodiment of this utility model, the distribution area of ​​the brush on the head and the upper surface of the suspended part covers the edge of the hollow groove, and a number of raised strips are provided on the central axis of the upper surface of the suspended part.

[0012] In a preferred embodiment of this utility model, the width of the first and second hollow strips is 0.1-5mm, and the length of the first and second hollow strips is ≤40mm, with the length of the first hollow strip being greater than the length of the second hollow strip.

[0013] In the above technical solution, the toothpaste brush head structure provided by this utility model, which allows toothpaste to flow back and quickly foam inside the toothbrush head, has the following beneficial effects:

[0014] (1) By setting a hollow groove, the hollow groove inside the head provides a flow channel for toothpaste liquid and foam. Combined with the friction of the brush, the toothpaste can quickly foam during brushing. The toothpaste liquid can be directly circulated to all parts of the cavity through the hollow part, quickly cleaning foreign objects in the oral cavity and significantly improving cleaning efficiency.

[0015] (2) By setting the hollow structure, the air circulation of the brush head is enhanced. After brushing, the moisture between the bristles can evaporate quickly through the hollow structure, avoiding the growth of bacteria caused by the humid environment of traditional solid brush heads, and improving the hygiene and safety of toothbrush use.

[0016] (3) By setting hollow grooves, hollow strip one and hollow strip two, the amount of material used is reduced while ensuring structural strength, and carbon emissions in the production process are reduced, which is in line with the concept of environmental protection and also reduces manufacturing costs.

[0017] (4) By setting suction cups and anti-slip buttons, the grip friction is increased. Combined with the suction cup at the end of the handle, it can not only prevent slipping when using with wet hands, but also make it easy to fix the toothbrush vertically on the sink or other flat surfaces, reducing space occupation and improving ease of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a perspective view of a toothbrush structure according to an embodiment of the present invention, which allows toothpaste to flow back and quickly foam inside the toothbrush head.

[0020] Figure 2 This is a top view of a toothbrush structure according to an embodiment of the present invention, which allows toothpaste to flow back and quickly foam inside the toothbrush head.

[0021] Figure 3 This is a bottom view of a toothbrush structure according to an embodiment of the present invention, which allows toothpaste to flow back and quickly foam inside the toothbrush head.

[0022] Figure 4 This is a front view of a toothbrush structure according to an embodiment of the present invention, which allows toothpaste to flow back and quickly foam inside the toothbrush head.

[0023] Figure 5 This invention provides an embodiment of a toothbrush head structure that allows toothpaste to flow back and quickly foam inside the toothbrush head. Figure 2 Enlarged view of a portion of the structure.

[0024] 1. Handle; 2. Neck; 3. Head; 31. Hollowed-out groove; 32. Support rib; 33. Suspended part; 4. Suction cup; 5. Brush; 6. Raised strip; 7. Anti-slip button; 8. Hollowed-out strip one; 9. Hollowed-out strip two. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown in the figure, the toothpaste brush head structure provided by this utility model embodiment, which allows toothpaste to flow back and quickly foam inside the toothbrush head, includes a handle 1, a neck 2 at one end of the handle 1, a head 3 at one end of the neck 2, a suspended member 33 inside the head 3, a hollow groove 31 between the suspended member 33 and the head 3, a supporting rib 32 between the suspended member 33 and the head 3, a plurality of bristles 5 on the upper surface of the head 3, and a suction cup 4 at the other end of the handle 1.

[0027] In this embodiment, a neck 2 is provided at one end of the handle 1, and a head 3 is provided at the other end of the neck 2. The head 3 adopts an arc-shaped edge design to match the curvature of the inner side of the mouth. A suspended part 33 is provided inside the head 3. The suspended part 33 is located in the central area of ​​the head 3. Its shape is concentrically reduced with the outline of the head 3 to ensure that the hollow grooves 31 are evenly distributed inside the head 3. A hollow groove 31 is provided between the suspended part 33 and the head 3 to enhance the foam flowability in the edge area. A support rib 32 is provided between the suspended part 33 and the head 3 to improve the structural resistance to deformation while ensuring flow efficiency. A suction cup 4 is provided at the other end of the handle 1. The suction cup 4 has a diameter of 15-20mm. A 0.2mm high silicone sealing ring is provided at the edge of the adsorption surface to ensure adsorption on smooth ceramic tiles, glass and other surfaces.

[0028] In this embodiment, a perforated strip 8 is provided on the handle 1 and a perforated strip 9 is provided on the neck 2. This reduces the amount of material used while ensuring structural strength and also lowers the manufacturing cost. In addition, the perforated design helps the water on the toothbrush surface to evaporate quickly.

[0029] In this embodiment, an anti-slip button 7 is provided at the connection between the handle 1 and the neck 2. The anti-slip button is cross-shaped and made of TPU soft rubber. The raised height is 0.5-1mm. The intersection point is located at the mechanical force point between the handle 1 and the neck 2. When the hand applies force to brush the teeth, the anti-slip button 7 can increase the friction with the palm through deformation, while dispersing the pressure and avoiding hand soreness caused by holding for a long time.

[0030] In this embodiment, the head 3 has dimensions of 10-50mm × 5-20mm, which can cover the oral cavity sizes of different groups, such as children (10-20mm × 5-10mm) and adults (25-50mm × 10-20mm). The width of the hollow groove 31 is 0.1-5mm. The width design of the hollow groove 31 takes into account both "flowability" and "prevention of food residue clogging". Areas narrower than 0.5mm can block large pieces of food residue, while areas wider than 1mm ensure rapid foam flow, forming a graded filtration flow path, while also enhancing the airflow of the brush head. After brushing, the moisture between the bristles can evaporate quickly through the hollow structure, avoiding bacterial growth caused by the humid environment of traditional solid brush heads.

[0031] In this embodiment, the connection between the support rib 32 and the suspended part 33 and the head 3 is an irregular glue position structure, which improves the structural resistance to deformation while ensuring flow efficiency.

[0032] In this embodiment, a plurality of brushes 5 are provided on the upper surface of the head 3. The distribution area of ​​the brushes 5 on the upper surface of the head 3 and the suspended part 33 covers the edge of the hollow groove 31. The brushes 5 on the edge of the head 3 are soft filaments with a diameter of 0.1-0.15mm, which can gently clean the gingival sulcus. The brushes 5 on the suspended part 33 are medium-hard filaments with a diameter of 0.15-0.2mm, which enhances the removal power of dental plaque on the tooth surface. A plurality of raised strips 6 are provided on the central axis of the upper surface of the suspended part 33. The raised strips 6 are made of silicone.

[0033] In this embodiment, the width of the first hollow strip 8 and the second hollow strip 9 is 0.1-5mm, and the length of the first hollow strip 8 and the second hollow strip 9 is ≤40mm, with the length of the first hollow strip 8 being greater than the length of the second hollow strip 9.

[0034] Working steps: 1. Squeeze an appropriate amount of toothpaste onto the brush 5 area on the upper surface of the head 3 and the suspended part 33, ensuring that the toothpaste covers the edge of the hollow groove 31;

[0035] 2. Hold the handle 1 with your hand, and place your thumb or index finger on the cross-shaped anti-slip button 7 at the connection between the handle 1 and the neck 2. The anti-slip button 7 increases friction and prevents slipping when using with wet hands.

[0036] 3. Start the brushing action. The bristles 5 come into contact with the teeth and gums and generate friction. The toothpaste begins to foam under the friction of the bristles 5. Some of the foam flows quickly through the hollow groove 31 to achieve the "recirculation" effect. The support rib 32 ensures the stability of the head 3 and the suspended part 33 and prevents the hollow groove 31 from being deformed due to force and affecting the flow of foam.

[0037] Fourth, as the brushing action continues, the foam circulates between the head 3 and the suspended part 33 through the hollow groove 31, and quickly spreads to the fine parts of the mouth such as the gaps between teeth and the gingival sulcus, so as to achieve uniform coverage of toothpaste liquid and foam and improve cleaning efficiency.

[0038] 5. After brushing your teeth, remove the toothbrush and rinse it clean. Use the suction cup 4 at the end of the handle 1 to attach the toothbrush to a smooth surface such as the sink, with the head 3 facing upwards. The perforations create an air circulation channel to accelerate the evaporation of moisture from the surface of the bristles 5 and the head 3.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A toothbrush head structure that allows toothpaste to flow back and quickly foam inside the toothbrush head, comprising a handle (1), characterized in that, The handle (1) has a neck (2) at one end and a head (3) at the other end. A suspended part (33) is provided inside the head (3). A hollow groove (31) is provided between the suspended part (33) and the head (3). A support rib (32) is provided between the suspended part (33) and the head (3). Several brushes (5) are provided on the upper surface of the head (3). A suction cup (4) is provided at the other end of the handle (1).

2. The toothbrush head structure according to claim 1, which allows toothpaste to flow back and quickly foam inside the toothbrush head, is characterized in that... The handle (1) has a perforated strip (8), and the neck (2) has a perforated strip (9).

3. The toothbrush head structure according to claim 1, which allows toothpaste to flow back and quickly foam inside the toothbrush head, is characterized in that... An anti-slip button (7) is provided at the connection between the handle (1) and the neck (2), and the anti-slip button (7) is cross-shaped.

4. The toothbrush head structure according to claim 1, which allows toothpaste to flow back and quickly foam inside the toothbrush head, is characterized in that... The length and width of the head (3) are 10-50mm × 5-20mm, and the width of the hollow groove (31) is 0.1-5mm.

5. The toothbrush head structure according to claim 1, which allows toothpaste to flow back and quickly foam inside the toothbrush head, is characterized in that... The connection between the supporting rib (32), the suspended part (33), and the head (3) is an irregular glued structure.

6. The toothbrush head structure according to claim 1, which allows toothpaste to flow back and quickly foam inside the toothbrush head, is characterized in that... The brush (5) covers the edge of the hollow groove (31) in the distribution area on the head (3) and the upper surface of the suspended part (33), and a number of protrusions (6) are provided on the central axis of the upper surface of the suspended part (33).

7. The toothbrush head structure according to claim 2, which allows toothpaste to flow back and quickly foam inside the toothbrush head, is characterized in that... The width of the first hollow strip (8) and the second hollow strip (9) is 0.1-5mm, and the length of the first hollow strip (8) and the second hollow strip (9) is ≤40mm. The length of the first hollow strip (8) is greater than the length of the second hollow strip (9).