Toothbrush head with pressure cushion and toothbrush
By employing a zoned design and a combination of different bristle bundles on the toothbrush head, the problem of balancing cleaning power and gum protection in a toothbrush is solved, achieving both efficient cleaning and gum protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHONGQING DENCARE CORP
- Filing Date
- 2026-06-18
- Publication Date
- 2026-07-24
AI Technical Summary
Existing toothbrushes struggle to balance cleaning power and gum care; hard bristles can easily scratch gums, while soft bristles are not efficient enough at cleaning.
Featuring a zoned design, the brush head has bristle bundles in different areas, including PA and PBT bristle bundles, combined with rounded and tapered filaments to form a high-low buffer layer, providing core cleaning power and gum protection.
It effectively removes plaque and tartar from the tooth surface while reducing toothbrush pressure, avoiding irritation to the gums by hard bristles, and providing a fine cleaning and gum protection effect.
Smart Images
Figure CN122439990A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of oral hygiene appliances, and in particular to a toothbrush head and toothbrush with pressure buffer. Background Technology
[0002] A toothbrush is a core tool for daily oral hygiene, used to remove plaque and food debris from teeth while also protecting gums. Hard bristles offer strong cleaning power but can easily scratch gums and wear down tooth enamel; while soft bristles are gentler on gums but lack the cleaning efficiency to effectively remove stubborn plaque. Therefore, designing a toothbrush that balances both cleaning power and gum protection is a pressing issue that needs to be addressed. Summary of the Invention
[0003] To address the aforementioned problems, this invention provides a toothbrush head and toothbrush with pressure buffer.
[0004] To achieve the above objectives, the technical solution provided by the present invention is as follows: This invention provides a toothbrush head with pressure buffer, comprising a brush head body, wherein the brush head body is provided with a bristle area, the bristle area including an edge area, a central area, a left side area and a right side area disposed to the left and right of the central area, and a head area and a tail area disposed above and below the central area; the central area, the left side area, the right side area, the head area and the tail area are all surrounded by the edge area; the edge area is provided with a first PBT bristle bundle distributed along the outer edge of the brush head body; the central area, the head area and the tail area are all provided with PA bristle bundles; the left side area and the right side area are all provided with a second PBT bristle bundle.
[0005] Furthermore, the edge area is provided with a plurality of first elongated oval bristle implantation holes corresponding to the first PBT bristle bundle, and the left side area and the right side area are respectively provided with a plurality of second elongated oval bristle implantation holes corresponding to the second PBT bristle bundle; the longitudinal direction of the first elongated oval bristle implantation hole is parallel to the outer edge of the brush head body, and the longitudinal direction of the second elongated oval bristle implantation hole is perpendicular to the longitudinal direction of the brush head body.
[0006] Furthermore, the central area, the head area, and the tail area are each provided with a plurality of circular bristle implantation holes corresponding to the PA bristle bundles.
[0007] Furthermore, the head area near the upper end of the brush head body is also provided with a third PBT bristle bundle and a third oblong bristle implantation hole corresponding to the third PBT bristle bundle; the longitudinal direction of the third oblong bristle implantation hole is parallel to the longitudinal direction of the brush head body.
[0008] Furthermore, both the first PBT bristle bundle and the second PBT bristle bundle are polybutylene terephthalate bristle bundles; the first PBT bristle bundle and the second PBT bristle bundle each have a tapered filament structure and include spiral filaments.
[0009] Furthermore, the PA bristle bundle is a nylon bristle bundle.
[0010] Furthermore, the PA bristle bundle has a rounded filament structure.
[0011] Furthermore, the diameter of the bristles in the first PBT bristle bundle and the second PBT bristle bundle is 0.12 to 0.18 mm; the diameter of the bristles in the PA bristle bundle is 0.18 to 0.22 mm.
[0012] Furthermore, the bristle height of the first PBT bristle bundle and the second PBT bristle bundle is 0.5 to 1.2 mm greater than the bristle height of the PA bristle bundle.
[0013] The present invention provides a toothbrush, comprising at least the toothbrush head with pressure buffer described above.
[0014] The technical solution provided by this invention has the following beneficial effects: 1. This invention employs a zoned design, distributing stiffer PA bristle bundles in the central, head, and tail areas of the brush head body. These bristles, with their high toughness and resilience, provide the core cleaning power, effectively removing plaque and tartar from the tooth surface. Simultaneously, softer first PBT bristle bundles are distributed along the edge of the brush head body, and softer second PBT bristle bundles are distributed on the left and right sides of the brush head body. This effectively reduces the average pressure of the brush, and the tapered bristles of both the first and second PBT bristle bundles can penetrate deep into interdental spaces and the gingival sulcus for refined cleaning, thus achieving a superior cleaning effect.
[0015] 2. The present invention adopts a high-low difference structure design, that is, the tapered bristle protrusions on the edge area can form a buffer layer to effectively reduce the average pressure of the toothbrush. When brushing, the softer first PBT bristle bundle can contact the gums in advance, thereby avoiding the hard PA bristle bundle from directly irritating the gums, thus playing a role in protecting the gums. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic of a toothbrush head with a handle in Example 1. Figure 2 The diagram shown is a schematic of a toothbrush head with a handle in Example 2. Detailed Implementation
[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0019] Example 1 Reference Figure 1 Embodiment 1 provides a toothbrush head with pressure buffer (hereinafter referred to as toothbrush head), including a brush head body 100. The brush head body 100 is provided with a bristle area 1. Specifically, the bristle area 1 includes an edge area 11, a center area 12, a left side area 13 and a right side area 14 provided on the left and right sides of the center area 12, and a head area 15 and a tail area 16 provided on the upper and lower sides of the center area 12. The tail area 16 is close to the toothbrush handle 200, and the center area 12, the left side area 13, the right side area 14, the head area 15 and the tail area 16 are all surrounded by the edge area 11.
[0020] The edge area 11 is provided with multiple first PBT bristle bundles 2 distributed along the outer edge of the brush head body 100. The left side area 13 and the right side area 14 are each provided with multiple second PBT bristle bundles 3. The center area 12, the head area 15 and the tail area 16 are each provided with multiple PA bristle bundles 4. The first PBT bristle bundles 2 and the second PBT bristle bundles 3 are both polybutylene terephthalate bristle bundles, and each has a tapered filament structure and is composed of multiple spiral filaments. The PA bristle bundles 4 are nylon bristle bundles and have a rounded filament structure.
[0021] In this embodiment, the edge area 11 is provided with a plurality of first oblong bristle holes (oblong in shape) corresponding to the first PBT bristle bundle 2, and the left side area 13 and the right side area 14 are respectively provided with a plurality of second oblong bristle holes (oblong in shape) corresponding to the second PBT bristle bundle 3. The longitudinal direction of each first oblong bristle hole is parallel to the outer edge of the brush head body 100, and the longitudinal direction of the second oblong bristle hole is perpendicular to the longitudinal direction of the brush head body 100.
[0022] Furthermore, the central area 12, the head area 15, and the tail area 16 are each provided with multiple circular bristle implantation holes (in a circular shape) corresponding to the PA bristle bundles 4.
[0023] In specific implementation, the bristle diameter of the first PBT bristle bundle 2 and the second PBT bristle bundle 3 is 0.12 to 0.18 mm, and the bristle diameter of the PA bristle bundle 4 is 0.18 to 0.22 mm.
[0024] Furthermore, the bristle height of the first PBT bristle bundle 2 and the second PBT bristle bundle 3 is 0.5 to 1.2 mm (e.g., 0.8 mm) greater than the bristle height of the PA bristle bundle 4.
[0025] In summary, the present invention adopts a partitioned design, distributing the relatively stiff PA bristle bundles 4 in the central area 12, head area 15 and tail area 16 of the brush head body 100, and using its high toughness and high resilience rounded bristles to provide the core cleaning power for the toothbrush, that is, it can remove plaque and tartar from the tooth surface.
[0026] Meanwhile, the softer first PBT bristle bundle 2 is distributed in the edge area 11 of the brush head body 100, and the softer second PBT bristle bundle 3 is distributed in the left side area 13 and right side area 14 of the brush head body 100, so as to effectively reduce the average pressure of the toothbrush. The tapered filaments of the first PBT bristle bundle 2 and the second PBT bristle bundle 3 can penetrate into the interdental spaces and gingival sulcus to achieve fine cleaning, thus achieving a cleaning effect.
[0027] In addition, the present invention adopts a high-low difference structure design, that is, the pointed bristle protrusions on the edge area 11, the left side area 13 and the right side area 14 can form a buffer layer to effectively reduce the average pressure of the toothbrush. Therefore, when brushing, the softer first PBT bristle bundle 2 can contact the gums in advance, thereby avoiding the hard PA bristle bundle 4 from directly irritating the gums, thus playing a gum protection function.
[0028] Example 2 Reference Figure 2 Example 2 provides a toothbrush head with pressure buffer. The structure of Example 2 is generally the same as that of Example 1, except that: the head area 15 near the upper end of the brush head body 100 is provided with a third PBT bristle bundle 5 and a third oblong bristle implantation hole corresponding to the third PBT bristle bundle 5. The length direction of the third oblong bristle implantation hole is parallel to the length direction of the brush head body 100. The third PBT bristle bundle 5 is also a polybutylene terephthalate bristle bundle. In this way, when the upper end of the brush head body 100 penetrates into the hard-to-reach areas of the oral cavity (such as the distal surface of molars and around wisdom teeth), it can further achieve precise pressure buffering and play a role in protecting gums.
[0029] Example 3 Example 3 provides a toothbrush, which includes at least the toothbrush head of Example 1 or Example 2.
[0030] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.
Claims
1. A toothbrush head with pressure buffer, comprising a brush head body, wherein the brush head body is provided with a bristle area, characterized in that: The bristle area includes an edge area, a central area, a left side area and a right side area disposed to the left and right of the central area, and a head area and a tail area disposed above and below the central area; the central area, the left side area, the right side area, the head area and the tail area are all surrounded by the edge area; the edge area is provided with a first PBT bristle bundle distributed along the outer edge of the brush head body; the central area, the head area and the tail area are all provided with PA bristle bundles; the left side area and the right side area are both provided with a second PBT bristle bundle.
2. The toothbrush head with pressure buffer according to claim 1, characterized in that: The edge area is provided with a plurality of first elongated oval bristle implantation holes corresponding to the first PBT bristle bundles, and the left side area and the right side area are respectively provided with a plurality of second elongated oval bristle implantation holes corresponding to the second PBT bristle bundles; the longitudinal direction of the first elongated oval bristle implantation hole is parallel to the outer edge of the brush head body, and the longitudinal direction of the second elongated oval bristle implantation hole is perpendicular to the longitudinal direction of the brush head body.
3. The toothbrush head with pressure buffer according to claim 2, characterized in that: The central area, the head area, and the tail area are each provided with a plurality of circular bristle implantation holes corresponding to the PA bristle bundles.
4. The toothbrush head with pressure buffer according to claim 1, characterized in that: The head area near the upper end of the brush head body is also provided with a third PBT bristle bundle and a third oblong bristle implantation hole corresponding to the third PBT bristle bundle; the length direction of the third oblong bristle implantation hole is parallel to the length direction of the brush head body.
5. The toothbrush head with pressure buffer according to any one of claims 1-4, characterized in that: Both the first PBT bristle bundle and the second PBT bristle bundle are polybutylene terephthalate bristle bundles; the first PBT bristle bundle and the second PBT bristle bundle each have a tapered filament structure and include spiral filaments.
6. The toothbrush head with pressure buffer according to claim 5, characterized in that: The PA bristle bundles are nylon bristle bundles.
7. The toothbrush head with pressure buffer according to claim 6, characterized in that: The PA bristle bundles have a rounded filament structure.
8. The toothbrush head with pressure buffer according to claim 7, characterized in that: The diameter of the bristles in the first PBT bristle bundle and the second PBT bristle bundle is 0.12 to 0.18 mm; the diameter of the bristles in the PA bristle bundle is 0.18 to 0.22 mm.
9. The toothbrush head with pressure buffer according to claim 8, characterized in that: The bristle height of the first PBT bristle bundle and the second PBT bristle bundle is 0.5 to 1.2 mm greater than the bristle height of the PA bristle bundle.
10. A toothbrush, characterized in that: It includes at least the toothbrush head with pressure buffer as described in any one of claims 1-9.