Toothbrush head and toothbrush

Abstract

The toothbrush head of the present disclosure comprises two bristle planting pieces which are arranged in sequence along the extension direction of the toothbrush handle, each of the bristle planting pieces comprises tooth surface cleaning bristle planting holes, gum cleaning bristle planting holes and interdental cleaning bristle planting holes, the gum cleaning bristle planting holes are arranged at the left and right ends of the tooth surface cleaning bristle planting holes, and the interdental cleaning bristle planting holes are arranged at the upper end or the lower end of the tooth surface cleaning bristle planting holes.

Description

Technical Field

[0001] This disclosure relates to the field of oral hygiene, and more particularly to a toothbrush head and a toothbrush. Background Technology

[0002] Current toothbrushes have functional zones for different areas of the mouth to clean, but structurally, the bristles are still fixed together on a bristle plate. Therefore, during use, the bristle resonance causes significant noise, resulting in a poor user experience. Furthermore, the limited deformation between bristles leads to lower cleaning efficiency for different areas of the mouth. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and to provide a toothbrush head and a toothbrush.

[0004] According to a first aspect of this disclosure, a toothbrush head is provided, the toothbrush head including two bristle pads spaced apart sequentially along the extending direction of the toothbrush handle, each bristle pad including:

[0005] Cleaning the pores of the tooth surface;

[0006] Gingival cleaning and hair implantation holes are located at the left and right ends of the tooth surface cleaning and hair implantation holes.

[0007] The tooth gap cleaning hair implantation hole is located at the upper or lower end of the tooth surface cleaning hair implantation hole.

[0008] The tooth surface cleaning hair implantation holes, gum cleaning hair implantation holes, and interdental cleaning hair implantation holes are all equipped with bristles.

[0009] In one embodiment of this disclosure, two of the hair grafts are fixedly connected by a connector, which is configured to cause the two hair grafts to undergo relative elastic deformation under the action of an external force.

[0010] In one embodiment of this disclosure, the two flocking pieces and the connector are integrally injection molded.

[0011] In one embodiment of this disclosure, the two bristle implants form an ellipse, the major axis of which is located in the extending direction of the toothbrush handle. There are at least two tooth surface cleaning bristle implant holes, which are disposed on the major axis of the ellipse and symmetrically distributed about the minor axis of the ellipse. The gingival cleaning bristle implant holes and the interdental cleaning bristle implant holes are arranged around the tooth surface cleaning bristle implant holes. The connector is disposed on the outer wall of the tooth surface cleaning bristle implant holes.

[0012] In one embodiment of this disclosure, the length ratio of the connector to the length of the flocking piece is 1:7.5-8.

[0013] In one embodiment of this disclosure, two of the hair-embedded patches are fixedly connected by covering their back and sides with soft adhesive, which is configured to allow the two hair-embedded patches to undergo relative elastic deformation under the action of external force.

[0014] In one embodiment of this disclosure, the bristle pad and the brush handle are injection molded as a single unit.

[0015] In one embodiment of this disclosure, the tooth surface cleaning hair implantation hole includes a central hole and a plurality of peripheral holes surrounding the central hole. The central hole is a regular polygonal hole, and the plurality of peripheral holes form a complete circle with the central hole as the center.

[0016] In one embodiment of this disclosure, the interdental cleaning hair implantation hole is a fan-shaped ring with the center of an ellipse as the center, and the central angle corresponding to the fan-shaped ring is greater than 90°;

[0017] The cross-sectional profile of the gingival cleaning hair implantation hole includes:

[0018] The first arc segment is parallel to the complete circle formed by the peripheral holes;

[0019] The second arc segment is a part of the ellipse;

[0020] A straight line segment, which is parallel to the minor axis of the ellipse;

[0021] The first arc segment and the second arc segment are connected by a smooth curve and the straight line segment.

[0022] According to a second aspect of this disclosure, a toothbrush is provided, the toothbrush comprising:

[0023] The brush head includes the brush head described in any of the above embodiments;

[0024] Handheld part;

[0025] A brush handle configured to connect the brush head and the handheld portion.

[0026] One beneficial effect of the toothbrush head disclosed herein is that it includes two bristle implants spaced apart sequentially along the extension direction of the toothbrush handle. Each bristle implant has implant holes for cleaning the tooth surface, gums, and interdental spaces, respectively, enabling thorough cleaning of the tooth surface, gums, and interdental spaces. Simultaneously, the two bristle implants are independently positioned and can move relative to each other, allowing them to conform to different curvatures of the tooth surface during brushing, improving cleaning effectiveness and dispersing brushing pressure to avoid excessive friction on the teeth or gums, thus reducing the possibility of damage to tooth enamel and gum tissue. Furthermore, the movement between the bristle implants disrupts bristle resonance, reducing noise.

[0027] The toothbrush disclosed herein includes the brush head, the hand handle, and the handle connecting the brush head and the hand handle, and therefore has the same beneficial effects as the brush head of the toothbrush disclosed herein, which will not be described in detail here. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments of the present disclosure and, together with their description, serve to explain the principles of the present disclosure.

[0029] Figure 1 This is an exploded structural diagram of the toothbrush head provided in one embodiment of the present disclosure;

[0030] Figure 2 This is a front view of the brush head of a toothbrush provided in one embodiment of the present disclosure;

[0031] Figure 3 This is a front view of the brush head of a toothbrush provided in another embodiment of this disclosure;

[0032] Figure 4 This is a schematic diagram of the exploded structure of a toothbrush provided in another embodiment of this disclosure.

[0033] Figures 1-4 The one-to-one correspondence between the component names and the reference numerals in the figures is as follows:

[0034] 11-Tooth surface cleaning hair implantation hole; 111-Central hole; 112-Peripheral hole; 12-Gingival cleaning hair implantation hole; 13-Interdental cleaning hair implantation hole; 2-Connector; 3-Soft rubber; 4-Brush handle; 5-Handle. Detailed Implementation

[0035] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present disclosure.

[0036] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use.

[0037] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0038] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0040] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0041] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0042] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0043] While existing toothbrushes functionally divide the bristles to clean different areas of the mouth, structurally, the bristles are still fixed together on a bristle plate to form a single unit. Therefore, during use, the bristle resonance results in significant noise, leading to a poor user experience. Furthermore, the limited deformation between bristles results in low cleaning efficiency for different areas of the mouth. To address this, this disclosure provides a toothbrush head and a toothbrush. For ease of understanding, please refer to the following... Figures 1-4 The toothbrush head and specific structure of the toothbrush, as well as its working principle, will be described in detail with reference to the embodiments.

[0044] The toothbrush head disclosed herein includes two bristle implants spaced apart sequentially along the extension direction of the toothbrush handle. Each bristle implant includes a tooth surface cleaning bristle implant 11, a gum cleaning bristle implant 12, and a tooth interdental cleaning bristle implant 13. The gum cleaning bristle implant 12 is located at the left and right ends of the tooth surface cleaning bristle implant 11, and the tooth interdental cleaning bristle implant 13 is located at the upper or lower end of the tooth surface cleaning bristle implant 11. Bristles are provided in the tooth surface cleaning bristle implant 11, the gum cleaning bristle implant 12, and the tooth interdental cleaning bristle implant 13.

[0045] Specifically, refer to Figure 1 Each individual hair implant has a complete cleaning area, namely, tooth surface cleaning hair implant holes 11, gum cleaning hair implant holes 12, and interdental cleaning hair implant holes 13. For the upper hair implant, the tooth surface cleaning hair implant holes 11 are located slightly below the center of the implant, with interdental cleaning hair implant holes 13 located above these holes, and gum cleaning hair implant holes 12 located at both ends of the tooth surface cleaning hair implant holes 11. For the lower hair implant, the tooth surface cleaning hair implant holes 11 are located slightly above the center of the implant, with interdental cleaning hair implant holes 13 located below these holes, and gum cleaning hair implant holes 12 located at both ends of the tooth surface cleaning hair implant holes 11. The two bristle pads operate independently, each capable of performing its cleaning task. Simultaneously, their relative movement allows them to conform to the different curvatures of the tooth surface during brushing, enhancing cleaning effectiveness and distributing brushing pressure to prevent excessive friction on the teeth or gums, thus reducing the potential for damage to enamel and gum tissue. Furthermore, each tuft of bristles is located within a single bristle hole, and the movement between the bristle pads prevents bristle resonance that could cause excessive noise.

[0046] The bristles inside the tooth surface cleaning pore 11 are mainly used to clean the tooth surface. They are made of medium hardness and are cleaned by the pressure of the bristles contacting the tooth surface under external force, such as manual operation or motor-driven vibration.

[0047] Proper gum cleaning is essential. Inadequate deep cleaning can lead to oral diseases such as gingivitis and periodontitis, thus affecting oral health. The 12-pore gum cleaning brush is primarily used for cleaning and massaging the gums. Because the gums are part of the oral mucosa and are relatively delicate, fine, soft bristles are used to clean them horizontally along the gum line under external force.

[0048] The bristles of the toothbrush are vertically inserted into the tooth surface cleaning implant 11, and are typically in perpendicular contact with the tooth surface during use. When inserted, the bristles of the gingival cleaning implant 12 are at a certain angle to the bristles within the tooth surface cleaning implant 11, with an angle ranging from 0-30°, preferably 5°-9°. During the cleaning process, the toothbrush is typically placed horizontally in the mouth. The bristles of the upper gingival cleaning implant 12 are curved upwards at a certain angle, and the bristles of the lower gingival cleaning implant 12 are curved downwards at a certain angle. The bristles of the gingival cleaning implant 12 are 1.5-2 mm longer than the bristles of the tooth surface cleaning implant 11, allowing them to contact the upper and lower gums simultaneously while cleaning the tooth surface, thus targeting the gum area.

[0049] Food debris and bacteria mainly remain in the gaps between teeth, easily forming plaque and gradually eroding tooth enamel. Therefore, it is necessary to clean these gaps. The interdental cleaning bristle implants 13 are located above or below the tooth surface cleaning bristle implants 11. The bristles of the interdental cleaning bristle implants 13 are primarily used for cleaning the interdental spaces. Because the interdental areas require deep cleaning, the bristles are extremely fine and of moderate hardness, softer than the bristles inside the tooth surface cleaning bristle implants 11, to prevent damage to the enamel. The length of the bristles in the interdental cleaning bristle implants 13 is equal to the length of the bristles in the gingival cleaning bristle implants 12, both being 1.5-2 mm longer than the bristles in the tooth surface cleaning bristle implants 11. While cleaning the tooth crown surface, the bristles in the interdental cleaning bristle implants 13 can penetrate deep into the interdental spaces for thorough cleaning.

[0050] In summary, the toothbrush disclosed herein includes two bristle implants spaced apart sequentially along the extension direction of the toothbrush handle. Each bristle implant has a tooth surface cleaning pore 11, a gum cleaning pore 12, and a tooth interdental cleaning pore 13. Correspondingly, it can clean the tooth surface, gums, and tooth interdental spaces respectively, achieving comprehensive tooth cleaning. Simultaneously, the two bristle implants are independently positioned and can move relative to each other, allowing them to conform to tooth surfaces with different curvatures during brushing, improving cleaning effectiveness and dispersing brushing pressure, avoiding excessive friction of the bristles on the teeth or gums, and reducing the possibility of damage to tooth enamel and gum tissue. Furthermore, the movement between the bristle implants disrupts bristle resonance, reducing noise.

[0051] In one embodiment, two hair grafts are fixedly connected by a connector 2, which is configured to allow the two hair grafts to undergo relative elastic deformation under the action of an external force.

[0052] Specifically, refer to Figure 2 Connector 2 is a tiny plastic structure. Connecting the two bristle pads via connector 2 ensures their stability and improves the overall structural strength. Furthermore, due to its small size, connector 2 possesses a certain degree of elastic deformation under external force, allowing the two bristle pads to move relative to each other. This movement includes angular changes along the extension direction of the toothbrush handle or relative twisting along the direction perpendicular to the handle. This design allows the two bristle pads to conform to tooth surfaces with different curvatures, reducing impact on the gums and thus minimizing irritation. Simultaneously, it enhances the overall structural strength of the brush head, preventing breakage under external force and extending the product's lifespan.

[0053] In one embodiment, the two flocking pieces and the connector 2 are injection molded as a single unit.

[0054] Specifically, the injection molding process integrates the two bristle pads and the connector 2 into a single unit. When brushing force is applied to the bristles, the force is distributed evenly across the bristle pads and connector 2 as a whole. This significantly improves the bristle pads' resistance to bending, torsion, and impact, extending the brush head's lifespan. Furthermore, traditional brush head seams tend to accumulate moisture, toothpaste foam, and bacteria, affecting the user's oral health. The one-piece molding technology reduces the space for bacterial growth and reproduction, enhancing the toothbrush's hygiene and safety.

[0055] Furthermore, the two bristle implants and the connector 2 are integrally molded through injection molding, ensuring accurate relative positions of the bristle implants and the connector 2. This avoids the problem of uneven stress caused by slight displacement between different workpieces in traditional assembly processes. During brushing, the movement between the two bristle implants causes stress concentration in the connector 2, making it very prone to fatigue fracture. Therefore, the integral molding process using injection molding disperses the pressure during use and ensures that the connector 2 is in the central position between the two bristle implants, preventing fatigue fracture caused by uneven stress.

[0056] In one embodiment, two bristle implants form an ellipse, with the major axis of the ellipse located in the extension direction of the toothbrush handle. There are at least two tooth surface cleaning bristle implant holes 11, which are disposed on the major axis of the ellipse and symmetrically distributed about the minor axis of the ellipse. Gingival cleaning bristle implant holes 12 and interdental cleaning bristle implant holes 13 are disposed around the tooth surface cleaning bristle implant holes 11. Connector 2 is disposed on the outer wall of the tooth surface cleaning bristle implant holes 11.

[0057] Specifically, the dental arch formed by the natural arrangement of the upper and lower teeth is not a straight line, but rather a smooth parabola or elliptical curve. Elliptical bristle pads can simulate the overall curvature of the dental arch. When the brush head is placed in the mouth, the long axis of the elliptical bristle pads can be parallel to the direction of the dental arch, allowing the bristles to cover more teeth simultaneously with a single brush stroke, significantly improving cleaning efficiency.

[0058] The right angles of rectangular bristle pads are prone to stress concentration. When users brush their teeth vigorously, the bristles at these corners bear the greatest pressure, which can not only cause excessive wear on the bristles in that area but also lead to excessive pressure on the local gums, potentially causing gum recession in the long run. Elliptical bristle pads eliminate sharp right angles, allowing the pressure applied during brushing to be more evenly distributed across the entire bristle surface. The elliptical contour itself has better bending and torsional stiffness; during brushing, stress can be transferred and dispersed more evenly along its smooth curve, reducing the possibility of fatigue cracking or overall deformation of the bristle pad. This not only protects gum health but also extends the overall lifespan of the bristles.

[0059] The oval-shaped, tapered tip allows the brush head to more easily and smoothly reach deep into the mouth, making it especially beneficial for people with small mouth openings or those who have difficulty cleaning the posterior teeth area. Furthermore, the curved edges reduce friction or scraping against the skin inside the mouth and tongue as the brush moves within the mouth, enhancing comfort and smoothness of use.

[0060] Because the surface area of ​​the teeth that needs to be cleaned is larger, the area of ​​the tooth surface cleaning hair implantation hole 11 is larger, and the tooth surface cleaning hair implantation hole 11 is located in the center of the hair implantation piece. Therefore, the structural strength of the tooth surface cleaning hair implantation hole 11 is higher. The connector 2 is set on the outer wall of the tooth surface cleaning hair implantation hole 11, and the two ends of the connector 2 are respectively fixed to the outer wall of the tooth surface cleaning hair implantation hole 11 of the two hair implantation pieces. This helps to improve the overall structural strength of the brush head and prevent the connector 2 from fatigue fracture.

[0061] In one embodiment, the length ratio of the connector 2 to the length of the flocking piece is 1:7.5-8.

[0062] Specifically, refer to Figure 2 The length of connector 2 significantly affects the freedom of movement between the bristle implants. Due to the elasticity of connector 2, increasing its length increases the space for the first bristle implant relative to the second, allowing each implant to adapt to the complex tooth surface during brushing. However, this significantly reduces the strength of connector 2, potentially leading to breakage. By setting the ratio of connector 2's length to the bristle implant length to 1:7.5-8, a reasonable range of movement is provided, allowing the second implant to float relative to the first. This allows the bristles to conform to the complex tooth surface, improving cleaning effectiveness. Furthermore, the length of connector 2 is not excessive, preventing breakage under external force.

[0063] Meanwhile, the first and second bristle implants are connected by a connector 2 to distribute the pressure during brushing, avoiding excessive friction of the bristles on the teeth or gums. When the user presses the bristle implants hard against the teeth, one of the bristle implants holds the teeth in place while the other bristle implants move relatively, dispersing the pressure and reducing the possibility of damage to the enamel and gum tissue.

[0064] In one embodiment, two hair-embedded patches are fixedly connected by covering their back and sides with soft adhesive 3, which is configured to allow the two hair-embedded patches to undergo relative elastic deformation under the action of external force.

[0065] Specifically, the soft adhesive 3 covers two hair grafts to directly fix them in place, and the soft adhesive 3 has excellent elastic deformation ability, allowing relative movement between the two hair grafts.

[0066] In another embodiment, refer to Figure 3Without connector 2, relying solely on the soft adhesive 3 for fixation, the two bristle implants can twist relative to each other by more than 60°, a feat impossible with traditional bristle implant fixation methods. Furthermore, the two bristle implants are independently designed and can move relative to each other, allowing them to conform to different curvatures of the tooth surface during brushing, improving cleaning effectiveness and distributing brushing pressure to prevent excessive friction between the bristles and teeth or gums, thus reducing the possibility of damage to tooth enamel and gum tissue. The movement between the bristle implants also disrupts bristle resonance, reducing noise.

[0067] In one embodiment, the bristle patch and the brush handle 4 are injection molded as a single unit.

[0068] Specifically, the bristle implants and handle 4 are manufactured using a one-piece injection molding technology, which offers numerous benefits for product performance, production efficiency, cost structure, user experience, and sustainability. Firstly, the weakness of traditional toothbrush structures lies in the connection between the bristle implants and handle 4, as well as the implantation holes. During long-term use, the repeated application of lateral brushing force to the brush head, while the user holds the brush at the other end, easily leads to fatigue failure, causing the bristles to loosen or even fall out. The one-piece molding technology uses high-temperature melting of plastic to completely fuse the bristle implants and handle 4 at the molecular level, then cools and solidifies them into a single structure. Thus, when brushing force is applied to the bristles, the force is directly transmitted through the bristle implants to the entire handle 4, rather than being concentrated in a few implantation holes. Stress is greatly dispersed and evenly distributed, significantly improving the bristle implants' resistance to bending, torsion, and impact, virtually eliminating bristle loss, and greatly enhancing the overall durability and lifespan of the brush head.

[0069] Secondly, even when traditional bristle implantation techniques fill the implantation holes with glue, these tiny pores or gaps between the glue and the plastic still allow moisture, toothpaste foam, bacteria, and food residue to seep into the channels inside the brush handle 4. However, the one-piece molding technology makes the bristle implantation piece and the brush handle 4 seamlessly integrated, with no physical channels connecting the outside to the internal cavity of the brush handle 4. This effectively inhibits the growth and reproduction of bacteria and mold inside the brush handle 4, greatly improving the hygiene and safety of the toothbrush, which is crucial for the user's oral health.

[0070] Furthermore, the injection molding cycle itself is highly efficient, eliminating the need to separately produce the brush handle 4 and the bristle implant for fixing, thus shortening the production cycle and reducing production costs. Moreover, during mold design, the product shape can be optimized without considering the fixing method or position, allowing for more precise control of the brush head's mechanical properties, improving cleaning effectiveness and comfort, and reducing the risk of damage to gums and teeth. Using a single material avoids the compatibility issues between the brush handle 4 material, the bristle implant material, and the adhesive in traditional processes, such as cracking caused by differences in adhesive strength and thermal expansion coefficients.

[0071] In summary, the injection molding of the bristle pad and brush handle 4 as a single unit greatly improves the product's performance, production efficiency, cost structure, and user experience.

[0072] In one embodiment, the tooth surface cleaning hair implantation hole 11 includes a central hole 111 and a plurality of peripheral holes 112 surrounding the central hole 111. The central hole 111 is a regular polygonal hole, and the plurality of peripheral holes 112 form a complete circle with the central hole 111 as the center.

[0073] Specifically, the tooth surface cleaning hair implantation hole 11 is circular in shape and is formed by a number of peripheral holes 112 surrounding the central hole 111. The number of peripheral holes 112 is the same as the number of sides of the central hole 111.

[0074] Furthermore, taking the scientifically recognized Bass brushing technique as an example, the bristles are tilted and gently pressed against the teeth, then gently brushed back and forth in an arc. The brushing trajectory is roughly elliptical, roughly matching the overall shape of the cleaning pores 11 on the tooth surface. Secondly, the circular design ensures even pressure distribution during brushing. If the pores were square or triangular, the pressure would be concentrated at the corners, potentially causing localized overpressure and damaging the enamel.

[0075] In one embodiment, the interdental cleaning hair implantation hole 13 is a fan-shaped ring with the center of an ellipse as its center, and the central angle corresponding to the fan-shaped ring is greater than 90°; the cross-sectional profile of the gingival cleaning hair implantation hole 12 includes a first arc segment, a second arc segment, and a straight line segment, the first arc segment being parallel to the complete circle formed by the peripheral hole 112; the second arc segment being a part of an ellipse; the straight line segment being parallel to the minor axis of the ellipse; the first arc segment and the second arc segment being connected by a smooth curve and a straight line segment.

[0076] Specifically, the interdental cleaning bristle implant 13 is shaped like a fan ring. This not only accommodates the elliptical shape formed by two bristle implants but also the circular tooth surface cleaning bristle implant 11, allowing the interdental cleaning bristle implant 13 to cover as many bristle implants as possible, effectively utilizing the area of ​​the implants while ensuring even pressure distribution. The central angle of the fan ring determines its width; the larger the central angle, the wider the fan ring, up to 180°. Therefore, the central angle of the fan ring is set to be greater than 90°, making its width close to the vertical height of the tooth. This allows the bristles of the interdental cleaning bristle implant 13 to penetrate the entire interdental space between two teeth, performing a complete cleaning from top to bottom, reducing cleaning dead zones and improving cleaning effectiveness.

[0077] Furthermore, the cross-section of the gingival cleaning hair implantation hole 12 is irregular, consisting of three parts: a first arc segment, a second arc segment, and a straight line segment. The first arc segment is concentric with the full circle formed by the peripheral hole 112 and adapts to the shape of the tooth surface cleaning hair implantation hole 11. The second arc segment is a partial elliptical arc of the ellipse formed by the two hair implants, and the straight line segment is parallel to the minor axis of the ellipse. The cross-section of the gingival cleaning hair implantation hole 12 adapts to the shape of the hair implant and the tooth surface cleaning hair implantation hole 11, which can better fill the hair implant, effectively utilize the area of ​​the hair implant, increase the area of ​​tooth cleaning, and achieve cleaning and massage of the gums.

[0078] The toothbrush disclosed herein includes a brush head, a handheld portion 5, and a handle 4, wherein the brush head includes the brush head described in any of the above embodiments; and the handle 4 is configured to connect the brush head and the handheld portion 5.

[0079] Specifically, the toothbrush of this disclosure has a handheld part 5, a brush handle 4, and a brush head as described in the above embodiments of this disclosure. The brush handle 4 and the bristle pad are injection molded as one piece. The bottom of the brush handle 4 is provided with an inward mounting hole, and the wall of the hole is provided with a mounting position that is fixed to the mounting bracket by engaging. The top of the handheld part 5 is fixedly connected to the mounting bracket and is fixedly connected to the brush handle 4 through the mounting bracket. The handheld part 5 is also equipped with a motor, a power supply unit, and an output end. The output end is used to drive the brush head to vibrate.

[0080] The toothbrush possesses the technical advantages of the brush head disclosed herein. Each bristle implant has implant holes 11 for cleaning the tooth surface, 12 for cleaning the gums, and 13 for cleaning between teeth. Correspondingly, it can clean the tooth surface, gums, and between teeth respectively, achieving comprehensive cleaning of the teeth. Simultaneously, the two bristle implants are independently designed and can move relative to each other, allowing them to conform to the different curvatures of the tooth surface during brushing, improving the cleaning effect and dispersing the pressure during brushing, avoiding excessive friction of the bristles on the teeth or gums, and reducing the possibility of damage to tooth enamel and gum tissue. Furthermore, the movement between the bristle implants disrupts bristle resonance, reducing noise.

[0081] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of this disclosure is defined by the appended claims.

Claims

1. A toothbrush head, characterized in that, The toothbrush head includes two bristle pads spaced apart sequentially along the extension direction of the toothbrush handle, each bristle pad comprising: Cleaning the pores of the tooth surface (11); Gingival cleaning hair implantation holes (12) are located at the left and right ends of the tooth surface cleaning hair implantation holes (11). Tooth gap cleaning hair implantation hole (13), the tooth gap cleaning hair implantation hole (13) is respectively located at the upper end or the lower end of the tooth surface cleaning hair implantation hole (11); The tooth surface cleaning hair implantation hole (11), the gum cleaning hair implantation hole (12), and the interdental cleaning hair implantation hole (13) are all equipped with bristles.

2. The toothbrush head according to claim 1, characterized in that, The two hair-embedded pieces are fixedly connected by a connector (2), which is configured to cause the two hair-embedded pieces to undergo relative elastic deformation under the action of external force.

3. The toothbrush head according to claim 2, characterized in that, The two flocking pieces and the connector (2) are integrally injection molded.

4. The toothbrush head according to claim 3, characterized in that, The two hair implants form an ellipse, with the major axis of the ellipse located in the extension direction of the toothbrush handle. There are at least two tooth surface cleaning hair implant holes (11), which are disposed on the major axis of the ellipse and symmetrically distributed about the minor axis of the ellipse. The gingival cleaning hair implant hole (12) and the interdental cleaning hair implant hole (13) are disposed around the tooth surface cleaning hair implant hole (11). The connector (2) is disposed on the outer wall of the tooth surface cleaning hair implant hole (11).

5. The toothbrush head according to claim 4, characterized in that, The length ratio of the connector (2) to the length of the hair graft is 1:7.5-8.

6. The toothbrush head according to claim 1, characterized in that, The two hair-embedded patches are fixedly connected by covering the back and sides with soft adhesive (3), which is configured to allow the two hair-embedded patches to undergo relative elastic deformation under the action of external force.

7. The toothbrush head according to claim 5 or 6, characterized in that, The bristle pad and brush handle (4) are injection molded as a single unit.

8. The toothbrush head according to claim 5, characterized in that, The tooth surface cleaning hair implantation hole (11) includes a central hole (111) and a plurality of peripheral holes (112) surrounding the central hole (111). The central hole (111) is a regular polygonal hole, and the plurality of peripheral holes (112) form a complete circle with the central hole (111) as the center.

9. The toothbrush head according to claim 8, characterized in that, The tooth gap cleaning hair implantation hole (13) is a fan-shaped ring with the center of the ellipse as the center, and the central angle corresponding to the fan-shaped ring is greater than 90°; The cross-sectional profile of the gingival cleaning hair implantation hole includes: The first arc segment is parallel to the complete circle formed by the peripheral hole (112); The second arc segment is a part of the ellipse; A straight line segment, which is parallel to the minor axis of the ellipse; The first arc segment and the second arc segment are connected by a smooth curve and the straight line segment.

10. A toothbrush, characterized in that, include: The brush head includes the brush head according to any one of claims 1-9; Handheld part (5); The brush handle (4) is configured to connect the brush head and the handheld part (5).

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