Toothbrush head and toothbrush

Abstract

The utility model discloses a toothbrush head and a toothbrush. The toothbrush head comprises a brush rod and a brush head, the brush plate is connected with the brush rod, and a bristle planting surface is arranged on the brush plate; the first bristle assembly is arranged on the bristle planting surface, and the first bristle assembly comprises a plurality of first bristle bundles; the second bristle assembly is arranged on the bristle planting surface, and the second bristle assembly comprises a plurality of second bristle bundles; an included angle is formed between at least one first bristle bundle and / or at least one second bristle bundle and the normal of the bristle planting surface, and an included angle is formed between the first bristle bundle and the second bristle bundle. The problem that teeth are not cleaned in place is solved, and the tooth brushing experience of a user is improved.

Description

Technical Field

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

[0002] As living standards improve, electric toothbrushes have gradually entered the daily lives of many people. At the same time, people's requirements for electric toothbrushes are no longer limited to simple brushing needs, but they have begun to pay more attention to the brushing experience.

[0003] With commonly used toothbrush heads on the market, users may not be able to clean their teeth thoroughly during brushing, which can lead to a poor brushing experience. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the related technologies, this application provides a toothbrush head and a toothbrush to solve the problem of inadequate cleaning by the toothbrush head in the related technologies.

[0005] To address the aforementioned technical problems, in a first aspect, this application provides a toothbrush head comprising:

[0006] brush handle;

[0007] A brush plate, which is connected to the brush rod, and the brush plate is provided with a bristle-forming surface;

[0008] A first bristle assembly is disposed on the bristle-planting surface, and the first bristle assembly includes a plurality of first bristle bundles.

[0009] The second bristle assembly is disposed on the bristle-planting surface and includes a plurality of second bristle bundles.

[0010] At least one of the first bristle bundles and / or at least one of the second bristle bundles are arranged at an angle to the normal of the bristle-planting surface, and there is an angle between the first bristle bundle and the second bristle bundle.

[0011] In this application, since at least one first bristle tuft and / or at least one second bristle tuft are arranged at an angle to the normal of the bristle implantation surface, and since there is an angle between the first bristle tuft and the second bristle tuft, during brushing, on the one hand, the bristle tufts arranged at an angle to each other are conducive to increasing the contact area between themselves and the tooth surface, which is conducive to better conforming the bristle tufts to the tooth surface, thereby effectively cleaning the tooth surface and improving cleaning efficiency and effect; on the other hand, the bristle tufts arranged at an angle to each other are conducive to increasing the friction between themselves and the tooth surface, which is also conducive to effectively cleaning the tooth surface and improving the cleaning effect.

[0012] More importantly, because there is an angle between the first and second bristle bundles, they can apply force to the tooth surface in different directions during brushing. This results in friction between the first and second bristle bundles and the tooth surface in different directions. Through the synergistic effect of the first and second bristle bundles, the tooth surface can be effectively cleaned, improving the cleaning effect and ensuring that the teeth are thoroughly cleaned.

[0013] In summary, by setting at least one first bristle bundle and / or at least one second bristle bundle at an angle to the normal of the bristle implantation surface, and by creating an angle between the first bristle bundle and the second bristle bundle, the cleaning effect on teeth can be improved, thereby helping to solve the problem of inadequate tooth cleaning and enhancing the user's brushing experience.

[0014] In one possible implementation of the first aspect, the brush plate has a width dividing plane, and the extending directions of the first bristle bundle and / or the second bristle bundle are parallel to the width dividing plane.

[0015] With this design, the bristles can clean teeth from different angles on the same plane during brushing, thus improving the cleaning effect of the toothbrush head.

[0016] In one possible implementation of the first aspect, the included angle between the first bristle bundle and the second bristle bundle is in the range of 0°-10°.

[0017] This design serves two purposes. First, it allows the bristles in the brush bundle to better adapt to the narrow spaces between teeth, ensuring close contact with the tooth surfaces on both sides of the gap and guaranteeing thorough cleaning. Second, it allows the bristles to provide more consistent cleaning force. When the bristles come into contact with the teeth, their elasticity and flexibility are better utilized, preventing excessive bending or deformation due to excessive angles, thus ensuring uniform and stable cleaning force.

[0018] In a possible implementation of the first aspect, in the length direction of the brush rod, the first bristle assembly is disposed on the side of the bristle-planting surface close to the brush rod, and the second bristle assembly is disposed on the side of the bristle-planting surface away from the brush rod.

[0019] This arrangement of the first and second bristle components along the length of the brush handle creates a synergistic cleaning effect. During brushing, as the brush head moves along the tooth surface, the first bristle component near the handle and the second bristle component away from the handle can simultaneously clean different parts of the teeth. This allows for coverage of a larger area of ​​the tooth surface in a single brushing motion, improving cleaning efficiency.

[0020] In a possible implementation of the first aspect, the first bristle bundle has a first fixed portion connected to the brush plate and a first movable end disposed away from the brush plate, and the second bristle bundle has a second fixed portion connected to the brush plate and a second movable end disposed away from the brush plate;

[0021] Along the length of the brush handle, the first movable end is positioned closer to the second bristle assembly than the first fixed portion, and the second movable end is positioned closer to the first bristle assembly than the second fixed portion.

[0022] With this configuration, if the first bristle assembly and the second bristle assembly are arranged to converge, it can ensure that the cleaning area of ​​the toothbrush head has more bristles per unit area, thereby improving the cleaning effect of the toothbrush head.

[0023] Understandably, if the first and second bristle components are positioned far apart, the user can clean more tooth surface area with each brush head movement, thereby improving the cleaning efficiency of the brush head.

[0024] In a possible implementation of the first aspect, the projected area of ​​the first bristle assembly on the bristle-planting surface is greater than the projected area of ​​the second bristle assembly on the bristle-planting surface.

[0025] In this application, the first bristle assembly and the second bristle assembly are used to clean different areas of the teeth. Since the second bristle assembly has a smaller area on the bristle implantation surface and is farther away from the brush handle, it is easier for the second bristle assembly to clean the inside of the user's mouth when using the toothbrush head, thereby improving the flexibility of the toothbrush head for oral cleaning. The first bristle assembly has a larger area on the bristle implantation surface, and has a larger tooth cleaning area when cleaning the mouth, thereby improving the cleaning efficiency of the toothbrush head.

[0026] In one possible implementation of the first aspect, the toothbrush head further includes a third bristle assembly comprising a plurality of third bristle bundles, wherein the third bristle assembly is disposed on the side of the second bristle assembly away from the brush handle along the length direction of the brush handle;

[0027] The brush plate includes two brush plate sections, namely a second brush plate section and a third brush plate section, wherein the second bristle assembly is disposed in the second brush plate section and the third bristle assembly is disposed in the third brush plate section;

[0028] The third bristle bundle is set at an angle to the normal of the bristle-planting surface.

[0029] With this configuration, a third bristle assembly is placed on the side of the second bristle assembly away from the brush handle along the length of the brush handle, forming a multi-layer cleaning structure. When the toothbrush head moves on the tooth surface, this multi-layer structure can gradually and deeply clean the teeth, thereby facilitating effective cleaning.

[0030] The third bristle tuft is angled to the normal of the bristle-embedded surface, allowing the bristles to contact the tooth surface at different angles. This angled arrangement increases the ways the bristles contact the teeth, generating not only a cleaning force perpendicular to the tooth surface but also a lateral cleaning force. This lateral cleaning force is more effective at removing dirt from between teeth and in the textured areas of the tooth surface.

[0031] The second and third bristle components are located in the second and third brush plate sections, respectively. This allows them to be specially designed according to the shape and cleaning needs of different areas of the teeth, thereby improving the cleaning effect on all parts of the teeth and reducing cleaning dead spots.

[0032] In a possible implementation of the first aspect, the first bristle bundle has a first fixed portion connected to the brush plate and a first movable end disposed away from the brush plate, and the third bristle bundle has a third fixed portion connected to the brush plate and a third movable end disposed away from the brush plate.

[0033] Along the length of the brush handle, the first movable end is positioned closer to the second bristle assembly than the first fixed portion, and the third movable end is positioned closer to the second bristle assembly than the third fixed portion.

[0034] The positioning of the first and third movable ends allows the bristles to better concentrate and remove stains during cleaning. As the bristles move across the tooth surface, stains are pushed from different directions towards the area where the second bristle assembly is located. This converging action helps to remove stains more thoroughly from the tooth surface. For some sticky plaque or food debris, this synergistic cleaning and converging effect can more effectively remove them from the teeth.

[0035] In a possible implementation of the first aspect, the brush plate includes two brush plate sections, which are respectively a first brush plate section and a second brush plate section arranged at intervals, the first bristle assembly is disposed in the first brush plate section, and the second bristle assembly is disposed in the second brush plate section.

[0036] Along the length of the brush rod, the first brush plate portion is disposed close to the brush rod, and the second brush plate portion is disposed on the side of the first brush plate portion away from the brush rod.

[0037] In this application, the first brush plate section and the second brush plate section are arranged alternately. Firstly, the extension angles of the first bristle bundles on the first brush plate section and the second bristle bundles on the second brush plate section are different. During the manufacturing process of the toothbrush head, bristles can be implanted separately on different brush plate sections, avoiding manufacturing difficulties. Secondly, the first brush plate section is positioned close to the brush handle, while the second brush plate section is positioned away from the brush handle. When the electric toothbrush is in operation, the handle drives the toothbrush head to vibrate. Because the first and second brush plate sections are positioned at different locations along the length of the brush handle, they have different ranges of motion, thereby enabling cleaning of different areas within the oral cavity. Thirdly, the independently arranged first and second brush plate sections reduce mutual interference, thus helping to extend the lifespan of the toothbrush head.

[0038] In a possible implementation of the first aspect, the first bristle bundle has a first fixed portion connected to the brush plate and a first movable end disposed away from the brush plate, and the second bristle bundle has a second fixed portion connected to the brush plate and a second movable end disposed away from the brush plate;

[0039] Along the length of the brush rod, the first movable end is positioned closer to the second brush plate portion than the first fixed portion, and the second movable end is positioned closer to the first brush plate portion than the second fixed portion.

[0040] This design allows the moving ends of the first and second bristle bundles to approach each other, reducing the gap between them and creating a denser bristle effect. This helps to reduce missed areas when cleaning the tooth surface, improving the overall cleaning and thus better addressing the problem of inadequate tooth cleaning.

[0041] In one possible implementation of the first aspect, the area of ​​the bristle-planting surface of the first brush plate portion is larger than the area of ​​the bristle-planting surface of the second brush plate portion.

[0042] The second bristle assembly on the second brush plate has a smaller area on the bristle implantation surface and is further away from the brush handle. Therefore, when the user uses the toothbrush head, the second bristle assembly can more easily clean the inside of the user's mouth, thereby improving the flexibility of the toothbrush head for oral cleaning. On the other hand, the first bristle assembly on the first brush plate has a larger area on the bristle implantation surface, providing a larger area for cleaning teeth during oral cleaning, thereby improving the cleaning efficiency of the toothbrush head.

[0043] In one possible implementation of the first aspect, the brush plate includes three brush plate sections, namely a first brush plate section, a second brush plate section, and a third brush plate section;

[0044] Along the length of the brush rod, the first brush plate portion is connected to the brush rod, the third brush plate portion is located on the side furthest from the brush rod, and the second brush plate portion is located between the first brush plate portion and the third brush plate portion;

[0045] The toothbrush head also includes a third bristle assembly, which includes a plurality of third bristle bundles. The first bristle assembly is disposed in the first brush plate portion, the second bristle assembly is disposed in the second brush plate portion, and the third bristle assembly is disposed in the third brush plate portion.

[0046] By placing different bristle components on different brush plates, and arranging them in order of distance from the brush handle as the first brush plate, the second brush plate, and the third brush plate, it is possible to achieve precise cleaning of the teeth in different areas, thereby ensuring that all teeth are thoroughly cleaned.

[0047] The independence of each brush head section improves the overall structural stability of the toothbrush head. During use, different brush head sections can deform appropriately according to the stress conditions, thereby reducing damage to the bristle bundles and brush heads. At the same time, this structure also helps to extend the lifespan of the toothbrush head and improve the durability of the product.

[0048] In a possible implementation of the first aspect, the first bristle bundle has a first fixed portion connected to the brush plate and a first movable end disposed away from the brush plate, and the third bristle bundle has a third fixed portion connected to the brush plate and a third movable end disposed away from the brush plate.

[0049] Along the length of the brush rod, the first movable end is positioned closer to the second brush plate portion than the first fixed portion, and the third movable end is positioned closer to the second brush plate portion than the third fixed portion.

[0050] This configuration causes the first and third bristle tufts to converge towards the second brush plate along the length of the brush handle. When cleaning teeth, the moving ends of both the first and third bristle tufts are close to the second brush plate. This allows for better synergistic cleaning among the three bristle components (first, second, and third bristle components), effectively improving cleaning efficiency across all tooth surfaces and reducing hard-to-reach areas.

[0051] In one possible implementation of the first aspect, the area of ​​the bristle-planting surface of the second brush plate is larger than the area of ​​the bristle-planting surface of the first brush plate, and the area of ​​the bristle-planting surface of the second brush plate is larger than the area of ​​the bristle-planting surface of the third brush plate.

[0052] The second brush plate has the largest bristle surface area, allowing the second bristle assembly on it to clean a larger area of ​​the mouth during oral hygiene. The first and third brush plates have smaller bristle surface areas than the second brush plate, enabling them to have a greater range of motion when the electric toothbrush vibrates, thus allowing the bristle bundles on each to contact different areas of the mouth to be cleaned.

[0053] In a possible implementation of the first aspect, the brush plate further includes a connecting portion disposed between two adjacent brush plate portions and connected to the two adjacent brush plate portions. The connecting portion is used to deform when the brush plate or any bristle bundle on the brush plate is subjected to force.

[0054] When the toothbrush head consists only of a first brush plate and a second brush plate, the connecting part links the first and second brush plate sections, effectively improving the connection stability and ensuring the connection strength. The deformation function of the connecting part can buffer excessive brushing force to a certain extent, preventing damage to teeth and gums. Simultaneously, the deformation of the connecting part allows for flexible relative positional or angular changes between the first and second brush plate sections, enabling the first and second bristle assemblies to flexibly adapt to the curvature of the tooth surface.

[0055] When the toothbrush head includes a first brush plate, a second brush plate, and a third brush plate, the first brush plate and the second brush plate are connected by a connecting part, and the second brush plate and the third brush plate are connected by a connecting part. On the one hand, this improves the connection stability between the first brush plate and the second brush plate, and between the second brush plate and the third brush plate. On the other hand, when the toothbrush head is under force during oral cleaning, the connecting part deforms, thereby allowing the relative position or relative angle between the different brush plate parts to change flexibly. This allows the first bristle assembly, the second bristle assembly, and the third bristle assembly to flexibly adapt to the curvature of the tooth surface.

[0056] In one possible implementation of the first aspect, the thickness of the connecting portion is less than the thickness of the brush plate portion.

[0057] When the thickness of the connecting part is greater than or equal to the thickness of the brush plate part, the connection strength of the connecting part is too great when the brush plate part is under force, which prevents the brush plate parts from changing position or angle. This further prevents the bristle components from flexibly adapting to the curvature of the user's tooth surface. However, when the thickness of the connecting part is less than the thickness of the brush plate part, the relative position or angle between the brush plate parts can change more flexibly when the bristle bundles or brush plate are under force. This allows the bristle components to more flexibly adapt to the curvature of the tooth surface, improving the cleaning effect of the toothbrush head.

[0058] In one possible implementation of the first aspect, the hardness of the connecting portion is less than or equal to the hardness of the brush plate portion.

[0059] With this configuration, when the bristle bundles and / or brush plates are subjected to force, the brush plate section can more flexibly change its relative position or relative angle, thereby enabling the bristle components to more flexibly adapt to the curvature of the tooth surface.

[0060] In a possible implementation of the first aspect, the first bristle assembly and the second bristle assembly are arranged along the width direction of the brush plate.

[0061] The first and second bristle components are positioned along the width of the brush plate, allowing the toothbrush head to simultaneously cover a larger area of ​​the tooth surface across the width of the brush plate. As the toothbrush moves through the mouth, the different bristle components can target different areas of the teeth for cleaning, from the inside to the outside of the teeth, and from the gum line to the occlusal surface, achieving comprehensive cleaning coverage and thus improving cleaning efficiency.

[0062] In a possible implementation of the first aspect, the first bristle bundle has a first fixed portion connected to the brush plate and a first movable end disposed away from the brush plate, and the second bristle bundle has a second fixed portion connected to the brush plate and a second movable end disposed away from the brush plate; in the length direction of the brush rod, the first movable end is disposed closer to the brush rod than the first fixed portion, and the second movable end is disposed away from the brush rod than the second fixed portion.

[0063] This design, firstly, increases the contact area between the bristles and the tooth surface regardless of whether the toothbrush head moves forward or backward along the length of the brush handle. This helps the bristles to better conform to the tooth surface, thereby cleaning the tooth surface more effectively and improving cleaning efficiency and effectiveness.

[0064] Secondly, regardless of whether the toothbrush head moves forward or backward along the length of the brush handle, it can increase the friction between the bristles and the tooth surface, which in turn helps to clean the tooth surface more effectively and further improve the cleaning effect.

[0065] Thirdly, this bidirectional tilting design allows the first and second bristle bundles to intersect at the moving end, which helps to reduce the gap between the two moving ends and creates a denser bristle effect. This makes it easier to reduce missed areas when cleaning the tooth surface, further improving the comprehensiveness of cleaning and thus better solving the problem of inadequate tooth cleaning.

[0066] In one possible implementation of the first aspect, the toothbrush head includes two first bristle assemblies, which are respectively disposed on both sides of the second bristle assembly in the width direction of the brush plate.

[0067] The two first bristle components located on either side of the second bristle assembly expand the toothbrush's cleaning coverage, meaning that more tooth surfaces can be reached during a single brushing motion, improving brushing efficiency. Furthermore, the first bristle components on either side work in conjunction with the second bristle assembly in the middle to clean from two different directions, resulting in more effective cleaning.

[0068] In one possible implementation of the first aspect, the toothbrush head further includes a soft rubber component, the brush plate includes a bristle-embedded surface and a back surface disposed along the thickness direction, and a side surface connecting the bristle-embedded surface and the back surface, the soft rubber component covering the back surface and at least a portion of the side surface of the brush plate.

[0069] When a toothbrush accidentally hits a toothbrush during use, the soft rubber parts can reduce the impact, which helps to reduce the discomfort and potential damage caused by the impact, and thus further improves the user experience.

[0070] In one possible implementation of the first aspect, the side surface of the soft rubber part closest to the flocked surface is flush with the flocked surface.

[0071] This design prevents unevenness between the bristle-planting surface and the connecting part of the toothbrush head, which could lead to dirt residue and affect use. Furthermore, the top surface of the soft rubber part is flush with the bristle-planting surface, preventing the soft rubber part from filling into the bristle-planting surface during injection molding and affecting the placement of the bristle bundles in the bristle-planting holes of the brush plate.

[0072] Secondly, this application also provides a toothbrush, which includes:

[0073] The toothbrush head described in any of the first aspects;

[0074] The toothbrush head is connected to the handle.

[0075] In this application, by setting at least one first bristle bundle and / or at least one second bristle bundle at an angle to the normal of the bristle-embedded surface, and by creating an angle between the first bristle bundle and the second bristle bundle, the cleaning effect on teeth can be improved, thereby helping to solve the problem of inadequate tooth cleaning and enhancing the user's brushing experience. Attached Figure Description

[0076] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0077] Figure 1 One of the schematic diagrams of a toothbrush head provided in an embodiment of this application;

[0078] Figure 2 A second schematic diagram of a toothbrush head provided in an embodiment of this application;

[0079] Figure 3 This is a schematic diagram of the internal structure of the toothbrush head provided in the embodiments of this application;

[0080] Figure 4 A third schematic diagram of a toothbrush head provided in an embodiment of this application;

[0081] Figure 5 Fourth schematic diagram of a toothbrush head provided in an embodiment of this application;

[0082] Figure 6 Fifth schematic diagram of a toothbrush head provided in an embodiment of this application;

[0083] Figure 7 This is a schematic diagram of a toothbrush provided in an embodiment of this application.

[0084] Explanation of reference numerals in the attached figures:

[0085] 1-Brush plate; 11-Fluffing surface; 12-First brush plate section; 13-Second brush plate section; 14-Soft rubber part; 15-Connecting part; 16-Third brush plate section;

[0086] 2-First bristle assembly; 21-First bristle bundle; 211-First fixing part; 212-First movable end;

[0087] 3-Second bristle assembly; 31-Second bristle bundle; 311-Second fixing part; 312-Second movable end;

[0088] 4-Third bristle assembly; 41-Third bristle bundle; 411-Third fixing part; 412-Third movable end;

[0089] 5-Brush handle;

[0090] 100-toothbrush head;

[0091] 200-handle. Detailed Implementation

[0092] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0093] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0094] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0095] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0096] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0097] As described in the background section of this application, with the improvement of living standards, electric toothbrushes have gradually entered the daily lives of many people. At the same time, people's requirements for electric toothbrushes are no longer limited to simple brushing needs, but rather they are beginning to pay more attention to the brushing experience.

[0098] However, with commonly used toothbrush heads on the market, users may not be able to clean their teeth thoroughly during brushing, which can lead to a poor brushing experience.

[0099] Example 1

[0100] In view of the above-mentioned problems, this application provides a toothbrush head to solve the problem of inadequate cleaning by toothbrush heads in the related art.

[0101] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings:

[0102] like Figure 1 , Figure 2 , Figure 4 , Figure 5 as well as Figure 6 As shown, the toothbrush head 100 includes a brush plate 1, a first bristle assembly 2, a second bristle assembly 3, and a brush handle 5. The brush plate 1 is connected to the brush handle 5. The brush plate 1 has a bristle-planting surface 11. The first bristle assembly 2 is disposed on the bristle-planting surface 11 and includes multiple first bristle bundles 21. The second bristle assembly 3 is disposed on the bristle-planting surface 11 and includes multiple second bristle bundles 31.

[0103] At least one first bristle tuft 21 and / or at least one second bristle tuft 31 are arranged at an angle to the normal L of the bristle-planting surface 11, and there is an angle between the first bristle tuft 21 and the second bristle tuft 31.

[0104] In this application, since at least one first bristle tuft 21 and / or at least one second bristle tuft 31 are arranged at an angle to the normal L of the bristle implantation surface 11, and since there is an angle between the first bristle tuft 21 and the second bristle tuft 31, during brushing, on the one hand, the bristle tufts arranged at an angle to each other are conducive to increasing the contact area between them and the tooth surface, which is conducive to making the bristle tufts better fit the tooth surface, thereby effectively cleaning the tooth surface and improving cleaning efficiency and effect; on the other hand, the bristle tufts arranged at an angle to each other are conducive to increasing the friction between them and the tooth surface, which is also conducive to effectively cleaning the tooth surface and improving the cleaning effect.

[0105] More importantly, because there is an angle between the first bristle tuft 21 and the second bristle tuft 31, during brushing, the first bristle tuft 21 and the second bristle tuft 31 can apply force to the tooth surface in different directions. As a result, the first bristle tuft 21 and the second bristle tuft 31 can generate frictional forces in different directions with the tooth surface. Thus, through the synergistic effect of the first bristle tuft 21 and the second bristle tuft 31, it is beneficial to effectively clean the tooth surface, improve the cleaning effect, and ensure that the teeth are thoroughly cleaned.

[0106] In summary, by setting at least one first bristle tuft 21 and / or at least one second bristle tuft 31 at an angle to the normal L of the bristle implantation surface 11, and by creating an angle between the first bristle tuft 21 and the second bristle tuft 31, the cleaning effect on teeth can be improved, thereby helping to solve the problem of inadequate tooth cleaning and enhancing the user's brushing experience.

[0107] In an optional embodiment, regarding the arrangement of the bristle bundles on the bristle implantation surface 11, the bristle implantation surface 11 is further provided with a plurality of first bristle implantation holes (not shown in the figure), and a first bristle bundle 21 is implanted in each first bristle implantation hole. The bristle implantation surface 11 is provided with a plurality of second bristle implantation holes (not shown in the figure), and a second bristle bundle 31 is implanted in each second bristle implantation hole.

[0108] This design provides a more secure anchor point for the bristle bundles, ensuring that they are reliably fixed to the toothbrush head 100 and not easily displaced by external forces. This not only extends the lifespan of the toothbrush head 100 but also ensures the stability of the bristle bundles during brushing. Furthermore, stable bristle bundles maintain good cleaning performance over long-term use.

[0109] For the bristle bundle, further, at least one of the first bristle bundle 21 and the second bristle bundle 31 is a copper-embedded bristle bundle; or, at least one of the first bristle bundle 21 and the second bristle bundle 31 is a copper-free bristle bundle; or, at least one of the first bristle bundle 21 and the second bristle bundle 31 is an injection-molded bristle bundle.

[0110] When the bristle bundles are copper-embedded, it means the bristles are implanted using a copper-embedding process. Because copper has antibacterial properties, it can inhibit the growth and reproduction of bacteria on the bristle bundles, thus helping to maintain cleanliness and hygiene. Furthermore, due to its antibacterial effect, the bristle bundles are less prone to rapid aging or damage due to bacterial erosion, thereby extending the lifespan of the toothbrush head.

[0111] When the bristle bundle is a copper-free bristle-planting bristle bundle, it means that the bristle bundle is planted using a copper-free bristle-planting process. Because the production process of copper-free bristle-planting is relatively simple, the cost is relatively low.

[0112] When the bristle bundle is an injection-molded bristle bundle, the bristle bundle and the brush plate 1 are fused together by injection molding, resulting in high bonding force and good overall integrity. The bristle bundle is not easy to fall off and has strong durability.

[0113] like Figure 2 As shown, the brush plate 1 has a width dividing surface A, and the extension direction of the first bristle bundle 21 and / or the second bristle bundle 31 is parallel to the width dividing surface A.

[0114] With this design, the bristles can clean the teeth from different angles on the same plane during brushing, thereby improving the cleaning effect of the toothbrush head 100.

[0115] In an optional embodiment, the included angle between the first bristle bundle 21 and the second bristle bundle 31 is in the range of 0°-10°.

[0116] This design serves two purposes. First, it allows the bristles in the brush bundle to better adapt to the narrow spaces between teeth, ensuring close contact with the tooth surfaces on both sides of the gap and guaranteeing thorough cleaning. Second, it allows the bristles to provide more consistent cleaning force. When the bristles come into contact with the teeth, their elasticity and flexibility are better utilized, preventing excessive bending or deformation due to excessive angles, thus ensuring uniform and stable cleaning force.

[0117] It is understood that the included angle between the first bristle bundle 21 and the second bristle bundle 31 can be any value within the range of 1°, 2°, 10° or 0°-10°. The setting of this included angle is relatively flexible. Specifically, it can be set according to actual usage requirements. This application embodiment does not make specific limitations on this.

[0118] Regarding the arrangement of the bristle assembly on the brush plate 1, in one embodiment, as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, along the length of brush 5 (e.g.) Figure 1 In the Y direction, the first bristle assembly 2 is located on the side of the bristle-planting surface 11 near the brush rod 5, and the second bristle assembly 3 is located on the side of the bristle-planting surface 11 away from the brush rod 5. The first bristle bundle 21 has a first fixed part 211 connected to the brush plate 1 and a first movable end 212 located away from the brush plate 1, and the second bristle bundle 31 has a second fixed part 311 connected to the brush plate 1 and a second movable end 312 located away from the brush plate 1; in the length direction of the brush rod 5, the first movable end 212 is located closer to the second bristle assembly 3 than the first fixed part 211, and the second movable end 312 is located closer to the first bristle assembly 2 than the second fixed part 311.

[0119] This design has two advantages. First, along the length of the brush handle 5, it increases the contact area between the toothbrush head 100 and the teeth, allowing the bristles to better conform to the tooth surface, thus effectively cleaning the tooth surface and improving cleaning efficiency and effectiveness. Second, along the length of the brush handle 5, that is, along the direction of the upper and lower teeth arrangement, it reduces the size of the toothbrush head 100 in that direction, thus improving the comfort of using the toothbrush head 100.

[0120] The first bristle bundle 21 is tilted and gradually approaches the second bristle assembly 3 from the first fixed part 211 to the first movable end 212. This allows the movable ends of the first bristle bundle 21 and the second bristle bundle 31 to approach each other, which helps to reduce the gap between the two movable ends and creates a dense bristle effect. This helps to reduce missed areas when cleaning the tooth surface, improves the comprehensiveness of cleaning, and thus helps to solve the problem of inadequate tooth cleaning.

[0121] In one implementation, further, such as Figure 1 and Figure 4 As shown, each second bristle bundle 31 is arranged perpendicular to the bristle implantation surface 11, and the first movable end of the first bristle bundle is positioned closer to the second bristle assembly than the first fixed portion. This arrangement further reduces the gap between the movable ends of the first bristle bundle 21 and the second bristle bundle 31, resulting in a denser bristle effect. This, in turn, helps to further reduce missed areas and improve the comprehensiveness of cleaning when cleaning the tooth surface.

[0122] In other embodiments, the second bristle bundle 31 can also be inclined along the length direction of the brush handle 5, that is, the second bristle bundle 31 is not perpendicular to the bristle implantation surface 11. This arrangement has two advantages: firstly, the inclined second bristle bundle 31 increases the contact area between itself and the tooth surface, allowing it to better conform to the tooth surface, thus improving cleaning efficiency and effectiveness; secondly, the inclined second bristle bundle 31 increases the friction between itself and the tooth surface, further improving cleaning effectiveness.

[0123] In one implementation, such as Figure 4 As shown, the projected area of ​​the first bristle component 2 on the bristle-planting surface 11 is greater than the projected area of ​​the second bristle component 3 on the bristle-planting surface 11.

[0124] In this application, the first bristle assembly 2 and the second bristle assembly 3 are used to clean different areas of the teeth. Since the area of ​​the second bristle assembly 3 on the bristle surface 11 is smaller and farther away from the brush handle 5, the second bristle assembly 3 can more easily clean the inside of the user's mouth when the user uses the toothbrush head 100, thereby improving the flexibility of the toothbrush head 100 in oral cleaning. The first bristle assembly 2 has a larger area on the bristle surface 11, and has a larger tooth cleaning area when cleaning the mouth, thereby improving the cleaning efficiency of the toothbrush head 100.

[0125] It is understandable that the projected area of ​​the first bristle component 2 on the bristle-planting surface 11 can also be equal to the projected area of ​​the second bristle component 3 on the bristle-planting surface 11, or the projected area of ​​the first bristle component 2 on the bristle-planting surface 11 can be less than the projected area of ​​the second bristle component 3 on the bristle-planting surface 11.

[0126] In one implementation, such as Figure 1 and Figure 2 As shown, the toothbrush head 100 also includes a third bristle assembly 4, which includes a plurality of third bristle bundles 41 along the length of the brush handle 5 (e.g., ...). Figure 1 In the Y direction (as shown in the image), the third bristle assembly 4 is positioned on the side of the second bristle assembly 3 away from the brush handle 5. For example... Figure 2 and Figure 3 As shown, the brush plate 1 includes two brush plate sections, namely the second brush plate section 13 and the third brush plate section 16. The second bristle assembly 3 is disposed in the second brush plate section 13, and the third bristle assembly 4 is disposed in the third brush plate section 16. The third bristle bundle 41 is set at an angle to the normal L of the bristle-planting surface 11.

[0127] With this configuration, a third bristle assembly 4 is placed on the side of the second bristle assembly 3 away from the brush handle 5 along the length of the brush handle 5, forming a multi-layer cleaning structure. When the toothbrush head 100 moves on the tooth surface, this multi-layer structure can gradually and deeply clean the teeth, thereby facilitating effective cleaning of the teeth.

[0128] The third bristle bundle 41 is set at an angle to the normal L of the bristle surface 11, allowing the bristle bundle to contact the tooth surface at different angles. This angle setting increases the ways in which the bristle bundle contacts the teeth, generating not only a cleaning force perpendicular to the tooth surface but also a lateral cleaning force. This lateral cleaning force can better remove dirt from the gaps between teeth and the textured areas of the tooth surface.

[0129] The second bristle assembly 3 and the third bristle assembly 4 are respectively disposed in the second brush plate section 13 and the third brush plate section 16. This allows them to be specially designed according to the shape and cleaning needs of different areas of the teeth, thereby improving the cleaning effect on all parts of the teeth and reducing cleaning dead spots.

[0130] In one implementation, such as Figure 1 As shown, the first bristle bundle 21 has a first fixed portion 211 connected to the brush plate 1 and a first movable end 212 disposed away from the brush plate 1. The third bristle bundle 41 has a third fixed portion 411 connected to the brush plate 1 and a third movable end 412 disposed away from the brush plate 1. In the length direction of the brush handle 5, the first movable end 212 is disposed closer to the second bristle assembly 3 than the first fixed portion 211, and the third movable end 412 is disposed closer to the second bristle assembly 3 than the third fixed portion 411.

[0131] The positioning of the first movable end 212 and the third movable end 412 allows the bristle bundles to better aggregate and remove stains during cleaning. As the bristle bundles move across the tooth surface, stains are pushed from different directions towards the area where the second bristle assembly 3 is located. This aggregation helps to remove stains more thoroughly from the tooth surface. For some sticky plaque or food debris, this synergistic cleaning and aggregation effect can more effectively remove them from the teeth.

[0132] In one embodiment, Figure 2 As shown, the projected area of ​​the second bristle component 3 on the bristle-planting surface 11 is greater than the projected area of ​​the first bristle component 2 on the bristle-planting surface 11, and the projected area of ​​the second bristle component 3 on the bristle-planting surface 11 is greater than the projected area of ​​the third bristle component 4 on the bristle-planting surface 11.

[0133] In one embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the brush plate 1 includes two brush plate sections, namely a first brush plate section 12 and a second brush plate section 13 spaced apart. A first bristle assembly 2 is disposed on the first brush plate section 12, and a second bristle assembly 3 is disposed on the second brush plate section 13. In the length direction of the brush rod 5, the first brush plate section 12 is disposed close to the brush rod 5, and the second brush plate section 13 is disposed on the side of the first brush plate section 12 away from the brush rod 5.

[0134] The first brush plate section 12 and the second brush plate section 13 are spaced apart. Firstly, the extension angle of the first bristle bundle 21 on the first brush plate section 12 is different from the extension angle of the second bristle bundle 31 on the second brush plate section 13. During the manufacturing process of the toothbrush head 100, bristles can be implanted into different brush plate sections separately, avoiding manufacturing difficulties for the toothbrush head 100. Secondly, the first brush plate section 12 is positioned close to the brush handle 5, while the second brush plate section 13 is positioned away from the brush handle 5. When the electric toothbrush is in operation, the handle drives the toothbrush head 100 to vibrate. Because the first brush plate section 12 and the second brush plate section 13 are positioned at different locations along the length of the brush handle 5, they have different ranges of motion, thereby enabling cleaning of different areas within the oral cavity. Thirdly, the independently positioned first brush plate section 12 and second brush plate section 13 can reduce mutual interference, thus helping to extend the service life of the toothbrush head 100.

[0135] In one embodiment, Figure 1 Figure 2 and Figure 3As shown, the first bristle bundle 21 has a first fixed portion 211 connected to the brush plate 1 and a first movable end 212 disposed away from the brush plate 1. The second bristle bundle 31 has a second fixed portion 311 connected to the brush plate 1 and a second movable end 312 disposed away from the brush plate 1. In the length direction of the brush rod 5, the first movable end 212 is disposed closer to the second brush plate portion 13 than the first fixed portion 211, and the second movable end 312 is disposed closer to the first brush plate portion 12 than the second fixed portion 311.

[0136] This arrangement allows the movable ends of the first bristle bundle 21 and the second bristle bundle 31 to approach each other, which helps to reduce the gap between the movable ends and create a dense bristle effect. This helps to reduce missed areas when cleaning the tooth surface, improves the comprehensiveness of cleaning, and thus better solves the problem of inadequate tooth cleaning.

[0137] In one embodiment, Figure 4 As shown, the area of ​​the bristle-planting surface 11 of the first brush plate portion 12 is larger than the area of ​​the bristle-planting surface 11 of the second brush plate portion 13.

[0138] The second bristle assembly 3 on the second brush plate section 13 has a smaller area on the bristle implantation surface 11 and is further away from the brush handle 5. Therefore, when the user uses the toothbrush head 100, the second bristle assembly 3 can more easily clean the inside of the user's mouth, thereby improving the flexibility of the toothbrush head 100 in oral cleaning. Meanwhile, the first bristle assembly 2 on the first brush plate section 12 has a larger area on the bristle implantation surface 11, and has a larger tooth cleaning area when cleaning the mouth, thereby improving the cleaning efficiency of the toothbrush head.

[0139] In one embodiment, Figure 2 and Figure 3 As shown, the brush plate 1 has three brush plate sections: a first brush plate section 12, a second brush plate section 13, and a third brush plate section 16. Along the length of the brush handle 5, the first brush plate section 12 is connected to the brush handle 5, the third brush plate section 16 is located on the side furthest from the brush handle 5, and the second brush plate section 13 is located between the first brush plate section 12 and the third brush plate section 16. The toothbrush head 100 also includes a third bristle assembly 4, which includes multiple third bristle bundles 41. The first bristle assembly 2 is located in the first brush plate section 12, the second bristle assembly 3 is located in the second brush plate section 13, and the third bristle assembly 4 is located in the third brush plate section 16.

[0140] By setting different bristle components on different brush plate sections, and in order of distance from the brush handle 5, they are designated as the first brush plate section 12, the second brush plate section 13, and the third brush plate section 16, which enables precise cleaning of the teeth in different areas, thereby ensuring that the entire tooth can be thoroughly cleaned.

[0141] The independence between the individual brush plates improves the structural stability of the entire toothbrush head 100. During use, different brush plates can deform appropriately according to the stress conditions, thereby reducing damage to the bristle bundles and brush plates 1. At the same time, this structure also helps to extend the service life of the toothbrush head 100 and improve the durability of the product.

[0142] In one embodiment, Figure 1 and Figure 2 As shown, the first bristle bundle 21 has a first fixed portion 211 connected to the brush plate 1 and a first movable end 212 disposed away from the brush plate 1. The third bristle bundle 41 has a third fixed portion 411 connected to the brush plate 1 and a third movable end 412 disposed away from the brush plate 1. In the length direction of the brush rod 5, the first movable end 212 is disposed closer to the second brush plate portion 13 than the first fixed portion 211, and the third movable end 412 is disposed closer to the second brush plate portion 13 than the third fixed portion 411.

[0143] This configuration causes the first bristle tuft 21 and the third bristle tuft 41 to converge towards the second brush plate portion 13 along the length of the brush handle 5. When cleaning teeth, the movable ends of the first bristle tuft 21 and the third bristle tuft 41 are close to the second brush plate portion 13. This allows for better synergistic cleaning among the three bristle components (first, second, and third bristle components), effectively improving cleaning efficiency across all tooth surfaces and reducing hard-to-reach areas.

[0144] In one embodiment, Figure 2 As shown, the area of ​​the bristle-planting surface 11 of the second brush plate portion 13 is larger than the area of ​​the bristle-planting surface 11 of the first brush plate portion 12, and the area of ​​the bristle-planting surface 11 of the second brush plate portion 13 is larger than the area of ​​the bristle-planting surface 11 of the third brush plate portion 16.

[0145] The second brush plate portion 13 has the largest bristle surface 11 area, so during oral cleaning, the second bristle assembly 3 on the second brush plate portion 13 can clean a larger area of ​​the oral cavity. The first brush plate portion 12 and the third brush plate portion 16 have a smaller bristle surface 11 area than the second brush plate portion 13, and the first brush plate portion 12 and the third brush plate portion 16 can have a greater range of motion when the electric toothbrush vibrates, so that the bristle bundles on each can contact different parts of the area to be cleaned.

[0146] In one embodiment, Figure 3 As shown, the brush plate 1 also includes a connecting part 15, which is disposed between two adjacent brush plate parts and connected to the two adjacent brush plate parts. The connecting part 15 is used to deform when the brush plate 1 or any bristle bundle on the brush plate 1 is subjected to force.

[0147] When the toothbrush head 100 comprises only the first brush plate portion 12 and the second brush plate portion 13, the connecting portion 15 connects the first brush plate portion 12 and the second brush plate portion 13, which effectively improves the connection stability between the first brush plate portion 12 and the second brush plate portion 13 and ensures the connection strength between them. The deformation function of the connecting portion 15 can buffer excessive brushing force to a certain extent, avoiding damage to teeth and gums. At the same time, through the deformation of the connecting portion 15, the relative position or relative angle between the first brush plate portion 12 and the second brush plate portion 13 can flexibly change, thereby allowing the first bristle assembly 2 and the second bristle assembly 3 to flexibly adapt to the curvature of the tooth surface.

[0148] When the toothbrush head 100 includes a first brush plate portion 12, a second brush plate portion 13, and a third brush plate portion 16, the first brush plate portion 12 and the second brush plate portion 13 are connected by a connecting portion 15, and the second brush plate portion 13 and the third brush plate portion 16 are connected by a connecting portion 15. On the one hand, this improves the connection stability between the first brush plate portion 12 and the second brush plate portion 13, and between the second brush plate portion 13 and the third brush plate portion 16. On the other hand, when the toothbrush head is under force during oral cleaning, the connecting portion 15 deforms, thereby allowing the relative position or relative angle between the different brush plate portions to change flexibly. This allows the first bristle assembly 2, the second bristle assembly 3, and the third bristle assembly 4 to flexibly adapt to the curvature of the tooth surface.

[0149] Furthermore, the thickness of the connecting portion 15 is less than the thickness of the brush plate portion.

[0150] When the thickness of the connecting part 15 is greater than or equal to the thickness of the brush plate part, the connection strength of the connecting part 15 is too great when the brush plate part is under force, causing the brush plate parts to be unable to change position or angle, and further causing the bristle assemblies to be unable to flexibly adapt to the curve changes of the user's tooth surface. When the thickness of the connecting part 15 is less than the thickness of the brush plate part, the relative position or relative angle between the brush plate parts will change more flexibly when the bristle bundle or brush plate 1 is under force, so that the bristle assemblies can more flexibly adapt to the curvature of the tooth surface and improve the cleaning effect of the toothbrush head 100.

[0151] Furthermore, the hardness of the connecting part 15 is less than or equal to the hardness of the brush plate part.

[0152] With this configuration, when the bristle bundle and / or brush plate 1 are subjected to force, the brush plate part can more flexibly change its relative position or relative angle, thereby enabling the bristle components to more flexibly adapt to the tooth surface curvature.

[0153] Regarding the arrangement of the bristle assembly on the brush plate 1, in optional embodiments, such as... Figure 5 and Figure 6 As shown, the first bristle assembly 2 and the second bristle assembly 3 are along the width direction of the brush plate 1 (e.g., Figure 6 (X direction setting in the settings).

[0154] The first and second bristle components are positioned along the width of the brush plate, allowing the toothbrush head to simultaneously cover a larger area of ​​the tooth surface across the width of the brush plate. As the toothbrush moves through the mouth, the different bristle components can target different areas of the teeth for cleaning, from the inside to the outside of the teeth, and from the gum line to the occlusal surface, achieving comprehensive cleaning coverage and thus improving cleaning efficiency.

[0155] Furthermore, if Figure 5 As shown, the first bristle bundle 21 has a first fixed part 211 connected to the brush plate 1 and a first movable end 212 disposed away from the brush plate 1, and the second bristle bundle 31 has a second fixed part 311 connected to the brush plate 1 and a second movable end 312 disposed away from the brush plate 1. In the length direction of the brush rod 5 (e.g.) Figure 5 In the Y direction, the first movable end 212 is positioned closer to the brush rod 5 than the first fixed part 211, and the second movable end 312 is positioned further away from the brush rod 5 than the second fixed part 311.

[0156] With this configuration, firstly, regardless of whether the toothbrush head 100 moves forward or backward along the length of the brush handle 5, the contact area between the bristles and the tooth surface can be increased, which helps the bristles to better conform to the tooth surface, thereby further improving the cleaning efficiency and effectiveness.

[0157] Secondly, regardless of whether the toothbrush head 100 moves forward or backward along the length of the brush handle 5, it can increase the friction between the bristles and the tooth surface, which in turn helps to clean the tooth surface more effectively and further improve the cleaning effect.

[0158] Thirdly, this bidirectional tilting design helps the first bristle bundle 21 and the second bristle bundle 31 intersect at the moving end, which is more conducive to reducing the gap between the two moving ends and creating a denser bristle effect. This makes it easier to reduce missed areas when cleaning the tooth surface, further improving the comprehensiveness of cleaning, and thus more conducive to solving the problem of inadequate tooth cleaning.

[0159] Furthermore, if Figure 6 As shown, the toothbrush head includes two first bristle assemblies 2, which are respectively disposed on both sides of the second bristle assembly 3 in the width direction of the brush plate 1.

[0160] The two first bristle components 2 located on either side of the second bristle component 3 expand the cleaning coverage of the toothbrush, meaning that more tooth surfaces can be reached simultaneously in a single brushing motion, improving brushing efficiency. Furthermore, the first bristle components 2 on both sides work in conjunction with the second bristle component 3 in the middle to clean from two different directions, resulting in more effective cleaning.

[0161] In other embodiments, a single first bristle assembly 2 may be provided. This arrangement reduces the number of first bristle assemblies 2, thereby reducing the manufacturing materials required for the bristle bundles and lowering costs.

[0162] For toothbrush head 100, further, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the toothbrush head also includes a soft rubber component 14. The brush plate 1 includes a bristle-embedded surface 11 and a back surface arranged along the thickness direction, as well as a side surface connecting the bristle-embedded surface 11 and the back surface. The soft rubber component 14 covers the back surface and at least part of the side surface of the brush plate 1.

[0163] When the toothbrush accidentally hits a tooth during use, the soft rubber part 14 can reduce the impact force to a certain extent, which helps to reduce the discomfort and potential damage caused by hitting the teeth, and thus further improves the user experience to a certain extent.

[0164] Furthermore, the opposite sides of the connecting portion 15 along the thickness direction of the brush plate 1 face the gap between the brush plate portions. The soft rubber part 14 used for protection and filling can fill the gap between the brush plate portions and wrap around the opposite sides of the connecting portion 15 to protect the connecting portion 15 and prevent it from breaking. The soft rubber part 14 wrapped around the outside of the brush rod 5 can make the connection between the brush rod 5 and the brush plate 1 tighter, provide a shock absorption effect for the brush plate 1, and prevent the brush rod 5 from breaking.

[0165] Furthermore, the hardness value of the soft rubber part 14 ranges from 35HA to 70HA.

[0166] This design offers several advantages. First, it provides a moderate level of cushioning, avoiding both excessive softness (making it unable to effectively withstand impacts) and excessive hardness (leaving no cushioning effect). Second, it maintains a degree of support, guiding and limiting the movement of the toothbrush head 100 during brushing, resulting in more stable and controllable brushing motions. Third, this hardness range offers general comfort for teeth and gums with varying degrees of sensitivity, adapting to different oral environments. Finally, the moderate hardness ensures good performance and shape retention even with prolonged use and frequent impacts, preventing excessive deformation or damage and extending the lifespan of the toothbrush head 100.

[0167] In this embodiment, the hardness value of the soft rubber part 14 can be any value within the range of 35HA, 70HA, or 35HA-70HA. The hardness value of the soft rubber part 14 is set flexibly. Specifically, it can be set according to actual usage requirements. This embodiment does not impose any specific limitations on this.

[0168] Furthermore, the thickness of the soft rubber part 14 ranges from 0.4mm to 2mm.

[0169] This design serves two purposes. First, it provides sufficient cushioning to absorb and reduce the impact when the toothbrush head 100 collides with the teeth, thus lowering the risk of pain and injury from impacted teeth. Second, it ensures that the soft rubber component 14, while providing cushioning, also possesses sufficient structural strength to prevent breakage or damage.

[0170] In this embodiment, the thickness of the soft rubber part 14 can be any value within the range of 0.4mm, 2mm, or 0.4mm-2mm. The thickness of the soft rubber part 14 is set flexibly. Specifically, it can be set according to actual usage requirements. This embodiment does not impose any specific limitations on this.

[0171] Regarding the materials of the brush plate 1 and the soft rubber part 14, in this embodiment, the brush plate 1 is made of hard rubber, and the soft rubber part 14 is made of soft rubber.

[0172] Because hard plastic typically has high strength and rigidity, using hard plastic to make brush plate 1 enhances its strength and rigidity, thus providing more reliable structural support. Because soft plastic has a soft texture, using soft plastic to make soft plastic component 14 not only provides better cushioning but also offers a more comfortable tactile experience for the user.

[0173] Furthermore, the material of the brush plate 1 is acrylonitrile-butadiene-styrene copolymer or polycarbonate, and the material of the soft rubber part 14 is thermoplastic elastic material or thermoplastic polyurethane elastic material.

[0174] The brush plate 1 is manufactured using acrylonitrile-butadiene-styrene copolymer or polycarbonate. Because acrylonitrile-butadiene-styrene copolymer (ABS) and polycarbonate (PC) have high strength and rigidity, they can provide stable support for the bristles, ensuring that the brush plate 1 is not easily deformed during brushing. At the same time, it is also easy to manufacture various complex shapes and structures to meet different design requirements.

[0175] The soft rubber part 14 is manufactured using thermoplastic elastomers or thermoplastic polyurethane elastomers. On one hand, because thermoplastic elastomers (TPE) and thermoplastic polyurethane elastomers (TPU) possess excellent elasticity and flexibility, the soft rubber part 14 can effectively absorb impact and deformation, providing effective cushioning and reducing damage from tooth impaction. On the other hand, it allows the soft rubber part 14 to have a pleasant tactile feel, making it comfortable to contact with the oral cavity and preventing irritation to the gums and oral tissues. Furthermore, it maintains good performance even under long-term use and frequent friction.

[0176] In one possible implementation, the side surface of the soft rubber part 14 closest to the flocked surface 11 is flush with the flocked surface 11.

[0177] This design avoids unevenness between the bristle-planting surface 11 and the connecting part 15 of the toothbrush head 100, which could lead to dirt residue affecting use. Furthermore, the top surface of the soft rubber part 14 is flush with the bristle-planting surface 11, which prevents the soft rubber part 14 from filling into the bristle-planting surface 11 during injection molding, thus avoiding affecting the placement of the bristle bundles in the bristle-planting holes of the brush plate 1.

[0178] For the movable ends of each bristle bundle, further, such as Figure 1 and Figure 5 As shown, along the length of the brush handle 5, the movable ends of each bristle bundle are arranged in a wavy shape.

[0179] This design has several advantages. First, the wavy arrangement creates an undulating shape at the moving ends of the bristles in the first direction. This allows the bristles to make more contact points with the tooth surface and between teeth during brushing, significantly increasing the effective cleaning area and thus improving cleaning efficiency and effectiveness.

[0180] Secondly, the wavy arrangement of the moving end creates varying pressure during brushing. When the higher points of the bristles contact the teeth, the pressure is greater, effectively removing stubborn stains. Conversely, when the lower points of the bristles contact the teeth, the pressure is relatively lower, gently cleaning the tooth surface and gums without over-stimulating them. This pressure variation makes cleaning more comprehensive and effective. Furthermore, because the moving end is wavy in the first direction, the bristles continuously clean the teeth as the toothbrush head 100 moves along the first direction of tooth alignment, improving cleaning efficiency.

[0181] Thirdly, the surface of teeth is not completely flat, but has a certain curvature and undulation. The wavy moving end can better adapt to the shape of the tooth surface, resulting in a higher degree of fit. This can reduce discomfort when brushing teeth and make the user feel more comfortable during the process.

[0182] Understandably, the movable ends of each bristle bundle can also be flexibly configured. For example, along the length of the brush handle 5, the movable ends of each bristle bundle can be straight, W-shaped, or convex. When the overall shape is straight or W-shaped, the user can improve the cleaning effect on the tooth surface by aligning the bristle bundles with the tangent of the tooth surface. When the overall shape is convex, the bristle bundles of the toothbrush head 100 can better clean the interdental spaces between teeth.

[0183] In one embodiment, the toothbrush head 100 is manufactured by injection molding.

[0184] By using the injection molding process, the toothbrush head can be molded in one go, reducing production steps and assembly processes, improving production efficiency, and lowering production costs. Furthermore, it ensures a tight bond between the hard rubber base and the soft rubber parts, preventing delamination or detachment during use and guaranteeing product quality and stability.

[0185] In another embodiment, the toothbrush head 100 is made by a multi-color injection molding process, and the color of the brush plate 1 is different from the color of the soft rubber part 14.

[0186] The multi-color injection molding process not only allows the toothbrush head 100 to be molded in one go, reducing production processes and assembly steps and improving production efficiency, but also enhances the aesthetics of the toothbrush head 100 because the colors of the brush plate 1 and the soft rubber part 14 are different.

[0187] Example 2

[0188] This application also provides a toothbrush, such as Figure 7 As shown, the toothbrush includes a toothbrush head 100 and a handle 200, wherein the toothbrush head 100 is connected to the handle 200. The toothbrush head 100 has the same structure as any of the toothbrush heads 100 in the above embodiments and can bring the same or similar beneficial effects. For details, please refer to the description in the above embodiments. This embodiment will not be repeated here.

[0189] In this application, by setting at least one first bristle bundle 21 and / or at least one second bristle bundle 31 at an angle to the normal L of the bristle implantation surface 11, and by creating an angle between the first bristle bundle 21 and the second bristle bundle 31, it is beneficial to improve the cleaning effect on teeth, thereby helping to solve the problem of inadequate tooth cleaning and enhancing the user's brushing experience.

[0190] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A toothbrush head, characterized in that, include: brush handle; A brush plate, which is connected to the brush rod, is provided with a bristle-planting surface, which faces the side of the brush plate in the thickness direction. A first bristle assembly is disposed on the bristle-planting surface, and the first bristle assembly includes a plurality of first bristle bundles. The second bristle assembly is disposed on the bristle-planting surface and includes a plurality of second bristle bundles. At least one of the first bristle bundles and / or at least one of the second bristle bundles are arranged at an angle to the normal of the bristle-planting surface, and there is an angle between the first bristle bundle and the second bristle bundle.

2. The toothbrush head according to claim 1, characterized in that, The brush plate has a width dividing surface, and the extension direction of the first bristle bundle and / or the second bristle bundle is parallel to the width dividing surface.

3. The toothbrush head according to claim 2, characterized in that, The angle between the first bristle bundle and the second bristle bundle ranges from 0° to 10°.

4. The toothbrush head according to claim 1, characterized in that, Along the length of the brush handle, the first bristle assembly is located on the side of the bristle-planting surface closer to the brush handle, and the second bristle assembly is located on the side of the bristle-planting surface away from the brush handle.

5. The toothbrush head according to claim 4, characterized in that, The first bristle bundle has a first fixed part connected to the brush plate and a first movable end disposed away from the brush plate; the second bristle bundle has a second fixed part connected to the brush plate and a second movable end disposed away from the brush plate. Along the length of the brush handle, the first movable end is positioned closer to the second bristle assembly than the first fixed portion, and the second movable end is positioned closer to the first bristle assembly than the second fixed portion.

6. The toothbrush head according to claim 4, characterized in that, The projected area of ​​the first bristle assembly on the bristle-planting surface is greater than the projected area of ​​the second bristle assembly on the bristle-planting surface.

7. The toothbrush head according to claim 1, characterized in that, The toothbrush head also includes a third bristle assembly, which includes a plurality of third bristle bundles. In the length direction of the brush handle, the third bristle assembly is disposed on the side of the second bristle assembly away from the brush handle. The brush plate includes two brush plate sections, namely a second brush plate section and a third brush plate section, wherein the second bristle assembly is disposed in the second brush plate section and the third bristle assembly is disposed in the third brush plate section; The third bristle bundle is set at an angle to the normal of the bristle-planting surface.

8. The toothbrush head according to claim 7, characterized in that, The first bristle bundle has a first fixed part connected to the brush plate and a first movable end disposed away from the brush plate; the third bristle bundle has a third fixed part connected to the brush plate and a third movable end disposed away from the brush plate. Along the length of the brush handle, the first movable end is positioned closer to the second bristle assembly than the first fixed portion, and the third movable end is positioned closer to the second bristle assembly than the third fixed portion.

9. The toothbrush head according to claim 1, characterized in that, The brush plate includes two brush plate sections, which are a first brush plate section and a second brush plate section that are spaced apart. The first bristle assembly is disposed on the first brush plate section and the second bristle assembly is disposed on the second brush plate section. Along the length of the brush rod, the first brush plate portion is disposed close to the brush rod, and the second brush plate portion is disposed on the side of the first brush plate portion away from the brush rod.

10. The toothbrush head according to claim 9, characterized in that, The first bristle bundle has a first fixed part connected to the brush plate and a first movable end disposed away from the brush plate; the second bristle bundle has a second fixed part connected to the brush plate and a second movable end disposed away from the brush plate. Along the length of the brush rod, the first movable end is positioned closer to the second brush plate portion than the first fixed portion, and the second movable end is positioned closer to the first brush plate portion than the second fixed portion.

11. The toothbrush head according to claim 9, characterized in that, The area of ​​the bristle-planting surface of the first brush plate is larger than the area of ​​the bristle-planting surface of the second brush plate.

12. The toothbrush head according to claim 1, characterized in that, The brush plate includes three brush plate sections, namely a first brush plate section, a second brush plate section, and a third brush plate section; Along the length of the brush rod, the first brush plate portion is connected to the brush rod, the third brush plate portion is located on the side furthest from the brush rod, and the second brush plate portion is located between the first brush plate portion and the third brush plate portion; The toothbrush head also includes a third bristle assembly, which includes a plurality of third bristle bundles. The first bristle assembly is disposed in the first brush plate portion, the second bristle assembly is disposed in the second brush plate portion, and the third bristle assembly is disposed in the third brush plate portion.

13. The toothbrush head according to claim 12, characterized in that, The first bristle bundle has a first fixed part connected to the brush plate and a first movable end disposed away from the brush plate; the third bristle bundle has a third fixed part connected to the brush plate and a third movable end disposed away from the brush plate. Along the length of the brush rod, the first movable end is positioned closer to the second brush plate portion than the first fixed portion, and the third movable end is positioned closer to the second brush plate portion than the third fixed portion.

14. The toothbrush head according to claim 12, characterized in that, The area of ​​the bristle-planting surface of the second brush plate is larger than the area of ​​the bristle-planting surface of the first brush plate, and the area of ​​the bristle-planting surface of the second brush plate is larger than the area of ​​the bristle-planting surface of the third brush plate.

15. The toothbrush head according to any one of claims 7-14, characterized in that, The brush plate further includes a connecting portion, which is disposed between two adjacent brush plate portions and connected to the two adjacent brush plate portions. The connecting portion is used to deform when the brush plate or any of the bristle bundles on the brush plate is subjected to force.

16. The toothbrush head according to claim 15, characterized in that, The thickness of the connecting portion is less than the thickness of the brush plate portion; and / or The hardness of the connecting part is less than or equal to the hardness of the brush plate part.

17. The toothbrush head according to claim 1, characterized in that, The first bristle assembly and the second bristle assembly are arranged along the width direction of the brush plate.

18. The toothbrush head according to claim 17, characterized in that, The first bristle bundle has a first fixed part connected to the brush plate and a first movable end disposed away from the brush plate; the second bristle bundle has a second fixed part connected to the brush plate and a second movable end disposed away from the brush plate. Along the length of the brush rod, the first movable end is positioned closer to the brush rod than the first fixed part, and the second movable end is positioned further away from the brush rod than the second fixed part.

19. The toothbrush head according to claim 17, characterized in that, The toothbrush head includes two first bristle assemblies, which are respectively disposed on both sides of the second bristle assembly in the width direction of the brush plate.

20. The toothbrush head according to claim 1, characterized in that, The toothbrush head also includes a soft rubber component, and the brush plate includes a bristle-embedded surface and a back surface disposed along the thickness direction, and a side surface connecting the bristle-embedded surface and the back surface, the soft rubber component covering the back surface and at least part of the side surface of the brush plate.

21. The toothbrush head according to claim 20, characterized in that, The side surface of the soft rubber part closest to the flocked surface is flush with the flocked surface.

22. A toothbrush, characterized in that, include: The toothbrush head according to any one of claims 1-21; The toothbrush head is connected to the handle.

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