Brush head and oral care equipment

Abstract

The brush head comprises a brush rod, a brush plate and a plurality of bristle clusters, the brush rod comprises a first connecting rod and a second connecting rod which are arranged in the length direction, the brush plate is connected with the first connecting rod, and the brush plate comprises at least two bristle planting parts and at least one connecting part which are sequentially arranged at intervals in the length direction; the connecting part is connected with two adjacent bristle planting parts, each bristle planting part is provided with a bristle planting surface and a back surface which are oppositely arranged along the thickness direction, and the bristle planting surface is provided with bristle planting holes; each bristle cluster comprises a fixed end and a free end, the fixed ends of the bristle clusters are arranged in the bristle planting holes, and the free ends of the bristle clusters extend out of the bristle planting face. The bristle planting surfaces of the bristle planting parts are perpendicular to a plane formed in the length direction and the thickness direction, and the bristle planting surfaces of the adjacent bristle planting parts are arranged at an included angle, so that a whole formed by the multiple bristle planting parts is obliquely arranged towards the side close to the bristle planting surfaces. According to the technical scheme, when the oral cavity is cleaned, the brush head can be better attached to teeth, and efficient cleaning is achieved.

Description

Technical Field

[0001] This application relates to the field of oral hygiene technology, and in particular to a brush head and oral care device. Background Technology

[0002] As living standards continue to improve, oral care devices (such as electric toothbrushes) have gradually become a part of many people's daily lives. People's needs for oral care devices are no longer limited to basic cleaning functions, but they are paying more and more attention to the experience during the cleaning process.

[0003] Currently, some oral care devices achieve effective tooth cleaning by vibrating the brush head. However, in practical applications, the brush head cannot conform well to the user's teeth, resulting in low oral cleaning efficiency and the easy occurrence of missed teeth. Utility Model Content

[0004] This application provides a brush head and an oral care device, which are designed to enable the brush head to fit more closely to the teeth during oral cleaning, thereby achieving efficient cleaning.

[0005] In a first aspect, embodiments of this application provide a brush head, the brush head comprising:

[0006] The brush handle includes a first connecting rod and a second connecting rod arranged along the length direction, one end of the second connecting rod being connected to the drive component of the oral care device, and the other end being connected to the first connecting rod;

[0007] A brush plate, connected to the first connecting rod, the brush plate including at least two bristle-planting sections and at least one connecting section arranged sequentially at intervals along the length direction, the connecting section being connected to two adjacent bristle-planting sections, each bristle-planting section having a bristle-planting surface and a back surface arranged opposite to each other along the thickness direction, the bristle-planting surface being provided with bristle-planting holes; and

[0008] A multi-brush bristle cluster, the bristle cluster including a fixed end and a free end, the fixed end of the bristle cluster being located at the bristle implantation hole, and the free end extending out of the bristle implantation surface;

[0009] The hair-planting surfaces of each hair-planting part are perpendicular to the plane formed by the length direction and the thickness direction, and the hair-planting surfaces of two adjacent hair-planting parts are set at an angle, so that the whole composed of multiple hair-planting parts is tilted towards the side closer to the hair-planting surface.

[0010] The brush head in this application comprises a brush plate connected to the first link of the brush handle, including at least two bristle implants and at least one connecting part arranged sequentially at intervals along the length direction. The bristle implant surfaces of adjacent bristle implants are arranged at an angle, so that the overall structure formed by the multiple bristle implants is tilted towards the side closer to the bristle implant surface. This design allows the brush head to conform to the curved contour of the teeth during oral cleaning due to the angle between the bristle implant surfaces, thereby increasing the bristle density of the bristle tuft 30. This allows the free ends of the bristle tufts on the bristle implant surfaces to be closer to the user's teeth and have stronger cleaning power. This improved fit and bristle density not only help to enhance the cleaning effect and reduce missed areas, but also reduce discomfort caused by uneven friction between the brush head and the tooth surface.

[0011] In some embodiments, the included angle between adjacent hair-planting surfaces is not less than 0° and not greater than 10°. This angle limitation makes the transition between adjacent hair-planting surfaces relatively smooth, ensuring both uniform coverage of the hair-planting surface and facilitating smooth deformation of the hair-planting parts under stress.

[0012] In some embodiments, the connecting portion has a first surface and a second surface disposed opposite to each other in the length direction, the first surface and the second surface being connected to two adjacent hair-planting portions, respectively;

[0013] In the length direction, the first surface is parallel to the end face of the bristle-planting portion near the bristle-planting portion of the brush handle, the second surface is set at an angle to the first surface, and the distance between the first surface and the second surface in the length direction gradually increases from the bristle-planting surface to the back surface.

[0014] This design allows the angle between the first and second surfaces of the connector to influence the shape of the hair implant surface. Due to this characteristic of the connector, the hair implant surfaces of the spaced-apart hair implants also exhibit an angle. This angled design allows the hair implants to better adapt to the curved shapes of teeth and gums, thereby improving cleaning effectiveness.

[0015] In some embodiments, the opposing end faces of two adjacent hair implantation portions are arranged at an angle. Because the end faces are angled, the shape of the hair implantation portions can also influence the angled arrangement of adjacent hair implantation surfaces, making it easier for the entire structure of the hair implantation portions to be tilted towards the side closer to the hair implantation surface, thus better conforming to tooth surfaces of different shapes and positions.

[0016] In some embodiments, the included angle between the opposing end faces of two adjacent, spaced-apart hair implants is equal to the included angle between the first surface and the second surface. This design ensures consistent angles throughout the entire structure, from the connecting portion to the hair implant, thereby achieving more precise morphological matching. Due to this consistency in angles, the arrangement and distribution of the hair implants in the oral cavity are more harmonious, allowing for a closer fit to the complex curves of the teeth.

[0017] In some embodiments, the hair-planting portion includes a first hair-planting portion and a second hair-planting portion, the first hair-planting portion being connected to the first connecting rod, and the second hair-planting portion being located on a side away from the first connecting rod along the length direction.

[0018] The first hair-planting part is arranged parallel to the two end faces along the length direction, and the second hair-planting part is arranged parallel to the two end faces along the length direction.

[0019] Due to the parallel arrangement of its end faces, it can maintain a coordinated arrangement with the first and second bristle implants, thus forming a uniform and harmonious layout across the entire brush head. Furthermore, the parallel arrangement of the end faces also helps to ensure even distribution of the bristles in the oral cavity, allowing the bristles to more comprehensively cover the tooth surface and improve cleaning efficiency.

[0020] In some embodiments, the hair-planting section includes a first hair-planting section, a second hair-planting section, and a third hair-planting section. The first hair-planting section is connected to the first connecting rod, the third hair-planting section is located on the side away from the first connecting rod along the length direction, and the second hair-planting section is located between the first hair-planting section and the third hair-planting section.

[0021] The first hair-planting part is arranged parallel to the two end faces along the length direction, the second hair-planting part is arranged parallel to the two end faces along the length direction, and the third hair-planting part is arranged parallel to the two end faces along the length direction.

[0022] Along the length direction, the angle between the end face of the third hair-planting part and one side end face of the first hair-planting part is greater than or equal to the angle between the end face of the second hair-planting part and the end face of the first hair-planting part.

[0023] This design allows the third bristle section, which is farther from the first link, to be tilted at a greater angle toward the side closer to the bristle surface. This design enables the bristles to fit more closely to the curved contours of the teeth, and can significantly improve the cleaning effect, especially when dealing with hard-to-reach interdental areas.

[0024] In some embodiments, the hair-planting portion has two opposing end faces along the length direction, the two end faces being arranged at an included angle. Specifically, by directly designing the two end faces of the hair-planting portion as an included angle, an included angle can be easily formed between adjacent hair-planting surfaces without the need for additional structures or components.

[0025] In some embodiments, the hair-planting portion includes a first hair-planting portion and a second hair-planting portion, the first hair-planting portion being connected to the first connecting rod, and the second hair-planting portion being located on a side away from the first connecting rod along the length direction.

[0026] In the length direction, the two end faces of the first hair-planting part are arranged at an angle, and the two end faces of the second hair-planting part are arranged parallel or at an angle.

[0027] Thus, along its length, the two end faces of the first pilaster implant are designed to be angled together. This design allows the first pilaster implant to better adapt to the curved contours of the teeth in the oral cavity, significantly improving cleaning effectiveness, especially when dealing with hard-to-reach interdental areas. The two end faces of the second pilaster implant are designed to be either parallel or angled together. This design provides greater flexibility; they can be arranged parallel to simplify manufacturing and assembly processes and reduce production costs.

[0028] In some embodiments, the hair-planting section includes a first hair-planting section, a second hair-planting section, and a third hair-planting section. The first hair-planting section is connected to the first connecting rod, the third hair-planting section is located on the side away from the first connecting rod along the length direction, and the second hair-planting section is located between the first hair-planting section and the third hair-planting section.

[0029] Along the length direction, the two end faces of the first bristle implant are set at an included angle. This design allows the bristle implant surface of the first bristle implant to better adapt to the curved contour of the tooth, especially when dealing with hard-to-reach interdental areas, significantly improving cleaning effectiveness; and / or

[0030] The two end faces of the second bristle implant are set at an angle, allowing the implanted surface of the second bristle implant to closely conform to the tooth surface, further improving the comprehensiveness and thoroughness of cleaning; and / or

[0031] The two end faces of the third pilaster are arranged in parallel. This design simplifies the manufacturing and assembly process of the third pilaster and reduces production costs. At the same time, the parallel end faces also ensure that the third pilaster remains stable in the oral cavity, is not easily deformed or dislodged, and thus ensures safety and comfort during brushing.

[0032] In some embodiments, in the length direction, the angle between the end face of the third pilaster and the end face of the first pilaster is greater than or equal to the angle between the end face of the second pilaster and the end face of the first pilaster. This design strategy is based on a deep understanding and analysis of the human oral cavity structure, aiming to allow the pilaster surface of the third pilaster to form a smoother and more conforming curved surface, thereby better conforming to the natural curve of the teeth, especially when dealing with hard-to-reach areas between teeth, significantly improving cleaning efficiency.

[0033] In some embodiments, the hardness of the hair-embedded portion is greater than the hardness of the connecting portion; and / or,

[0034] Along the thickness direction, the thickness of the hair-planting portion is greater than the thickness of the connecting portion; and / or,

[0035] Along the width direction, the width of the hair-planting portion is greater than the width of the connecting portion, wherein the width direction, the thickness direction, and the length direction are all perpendicular to each other; and / or,

[0036] The width of the connecting portion along the width direction is greater than the thickness of the connecting portion along the thickness direction, wherein the width direction, the thickness direction and the length direction are perpendicular to each other.

[0037] This design makes the connecting part easier to bend under the same external force, ensuring that the brush head bristles fit better against the tooth surface.

[0038] In some embodiments, the deformation of the connecting portion can cause the brush plate to bend and deform towards the side where the bristle-embedded surface is located and towards the side where the back surface is located. This allows the connecting portion to bend easily, ensuring that the bristle tufts of the brush head better fit and conform to the tooth surface.

[0039] In some embodiments, the amount of bending deformation of the brush plate towards the bristle-embedded side is less than the amount of bending deformation of the brush plate towards the back side. This effectively maintains the neat arrangement of the bristle tufts and provides a good brushing effect.

[0040] In some embodiments, the connecting portion does not extend beyond the bristle-forming surface in the thickness direction; and / or, the connecting portion does not extend beyond the back surface in the thickness direction. This allows for deformation of the connecting portion while maintaining the compactness of the overall brush plate structure.

[0041] In some embodiments, the distance between the connecting portion and the bristle-forming surface is greater than the distance between the connecting portion and the back surface in the thickness direction. This arrangement not only further facilitates the deformation of the connecting portion but also helps to improve the performance and durability of the brush plate.

[0042] In some embodiments, a reinforcing portion is provided on the back side to strengthen the bristle-embedded portion, thereby ensuring sufficient stability and durability of the entire brush plate.

[0043] In some embodiments, the cross-section of the reinforcing portion, cut by a plane perpendicular to the thickness direction, gradually decreases in the direction from the flocked surface to the back surface. This design not only optimizes material utilization efficiency but also increases the contact area with surrounding structures through the gradually decreasing cross-section, further enhancing the overall connection strength and stability.

[0044] In some embodiments, the brush head further includes a soft rubber component that covers the bristle implantation portion and the connecting portion. The soft rubber component has a front and a back side disposed opposite each other along its thickness direction. The free ends of multiple bristle tufts protrude from the front side of the soft rubber component. The hardness of the soft rubber component is less than that of the connecting portion and the bristle implantation portion. Because the soft rubber component is soft and elastic, it provides excellent cushioning when the brush head contacts the mouth.

[0045] Along the thickness direction, the flocked surface and the front of the soft rubber are flush; such a flush surface makes the overall feel smoother and more consistent, and the user is less likely to come into contact with the flocked surface during use.

[0046] Alternatively, along the thickness direction, the flocked surface protrudes from the front of the soft rubber. This protruding flocked surface can reach deeper into and clean the target area, especially those hard-to-reach corners and crevices.

[0047] Secondly, embodiments of this application provide an oral care device, which includes a brush head and a body as described above, wherein the drive component of the body is detachably connected to the brush head. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the structure of one embodiment of the brush head of this application;

[0050] Figure 2 This is a partial structural diagram of the brush head of this application;

[0051] Figure 3 This is an exploded view of the brush head of this application;

[0052] Figure 4 This is a partial structural diagram of the first link of the brush head in this application;

[0053] Figure 5 This is a partial structural diagram of the first link of the brush head in this application from another perspective.

[0054] Explanation of icon numbers:

[0055] 100. Brush head; 10. Brush handle; 11. First connecting rod; 12. Second connecting rod; 20. Brush plate; 21. Bristle implantation section; 211. Bristle implantation surface; 212. Back side; 21a. Bristle implantation hole; 21A. First bristle implantation section; 21B. Second bristle implantation section; 21C. Third bristle implantation section; 22. Connecting part; 221. First surface; 222. Second surface; 23. Reinforcing part; 30. Bristle tuft; 31. Fixed end; 32. Free end; 40. Soft rubber part; 41. Soft rubber front side; 42. Soft rubber front side.

[0056] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0058] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0059] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] As living standards continue to improve, oral care devices (such as electric toothbrushes) have gradually become a part of many people's daily lives. People's needs for oral care devices are no longer limited to basic cleaning functions, but they are paying more and more attention to the experience during the cleaning process.

[0062] This application provides an oral care device, including but not limited to electric toothbrushes, water flossers, and oral examination equipment. The following description uses an electric toothbrush as an example. The oral care device includes a main body and a brush head. The main body is designed for easy gripping and incorporates core structures such as a drive unit (e.g., a motor) and control functions. The drive shaft of the drive unit is connected to the brush head and drives the brush head to vibrate. The brush head is used to reach deep into the user's oral cavity for effective cleaning of teeth. Furthermore, the drive shaft of the drive unit and the brush head employ a detachable connection design, such as a snap-fit ​​connection. This not only facilitates easy operation when the brush head wears out or needs replacement, but also ensures efficient use and long-term maintenance of the oral care device.

[0063] However, in practical applications, the brush head cannot fit the user's teeth well, resulting in low oral cleaning efficiency and the tendency to miss teeth.

[0064] To resolve the above issues, please refer to [link / reference]. Figures 1 to 3 The first aspect of this application discloses a brush head 100, which, in an embodiment of this application, includes a brush handle 10, a brush plate 20, and multiple tufts of bristles 30.

[0065] The brush handle 10 includes a first connecting rod 11 and a second connecting rod 12 arranged along its length. One end of the second connecting rod 12 is connected to the drive component of the oral care device, and the other end is connected to the first connecting rod 11. The first connecting rod 11 and the second connecting rod 12 can be an integral structure, which enhances the overall structural strength of the brush handle 10, enabling it to withstand greater forces and torques during use, thereby extending the product's lifespan and improving the user experience.

[0066] Furthermore, to further enhance the connection stability between the brush handle 10 and the drive unit, a connector can be cleverly designed at the end of the second link 12 opposite to the first link 11. This design allows the drive shaft of the drive unit to be directly inserted into the connector, achieving a secure fixation between the two through a tight fit. This connection method not only simplifies the installation process but also improves the reliability and durability of the connection. Regarding material selection, the first link 11 and the second link 12 can be made of hard rubber or hard plastic. These materials not only have good processing performance and cost-effectiveness but also meet the strength and durability requirements of the brush handle 10 during oral care.

[0067] The brush plate 20 is connected to the first connecting rod 11. The brush plate 20 includes at least two hair-planting parts 21 and at least one connecting part 22 arranged sequentially and spaced apart along the length direction. The connecting part 22 is connected to two adjacent hair-planting parts 21. The hair-planting part 21 has a hair-planting surface 211 and a back surface 212 arranged opposite to each other along the thickness direction. The hair-planting surface 211 is provided with hair-planting holes 21a.

[0068] In this design, multiple bristle-embedded sections 21 are connected in a spaced and orderly manner along their length by connecting parts 22. This design allows the bristle-embedded sections 21 to maintain a certain distance from each other while functioning collaboratively as a whole. First, this integration significantly enhances the overall stability and structural strength of the brush head 100, because the synergistic effect between the bristle-embedded sections 21 reduces uneven stress on individual sections, thereby improving the durability and lifespan of the brush head 100. Second, the unified connection through connecting parts 22 simplifies the manufacturing process of the brush head 100, improving production efficiency and reducing production costs.

[0069] As one embodiment of this application, the connecting portion 22 and the bristle-embedding portion 21 are an integral structure. By integrating the connecting portion 22 and the bristle-embedding portion 21 into a single unit, the structure of the brush head 100 is simplified, and its integrity and stability are enhanced. During the cleaning process, this integral structure can effectively reduce performance degradation caused by loose connections or wear between components, thereby extending the service life of the brush head 100. At the same time, the integral structure design also simplifies the manufacturing process of the brush head 100, improves production efficiency, and reduces production costs.

[0070] The hair-planting part 21 also includes a side surface connecting the hair-planting surface 211 and the back surface 212. The first connecting rod 11 is connected to the back surface 212 or side surface of any one of the hair-planting parts 21, or the first connecting rod 11 can be connected to the side surface or back surface 212 of any multiple hair-planting parts 21 simultaneously to improve connection stability. In addition, when the first connecting rod 11 is connected to the back surface 212 of the hair-planting part 21 away from the first connecting rod 11, a clearance space can be provided on the side of the first connecting rod 11 near the hair-planting surface 211. The clearance space can facilitate the deformation and movement of the hair-planting part 21 near the first connecting rod 11.

[0071] The bristle tuft 30 includes a fixed end 31 and a free end 32. The fixed end 31 of the bristle tuft 30 is located in the bristle planting hole 21a, and the free end 32 extends out of the bristle planting surface 211. In this way, the bristle tuft 30 can be firmly fixed on the bristle planting part 21 through the bristle planting hole 21a, while ensuring the stability and durability of the bristle tuft 30 during use.

[0072] Furthermore, the bristle implantation hole 21a can be at least one of a triangle, an elongated shape, a circle, or a rectangle. This embodiment does not limit this. The shape of the bristle implantation hole 21a is diverse, and bristles with different cross-sectional shapes can be set, making the types of brush heads 100 more diverse and the teeth cleaning effects more comprehensive.

[0073] It is understood that the fixed end 31 and the free end 32 are the two opposite ends of the bristle cluster 30 extending along the thickness direction. During manufacturing, the fixed end 31 can be set using either copper-embedded bristles or copper-free bristle-embedded bristles. Both processes are used to ensure that the fixed end 31 is firmly implanted into the bristle-embedded hole 21a of the bristle-embedded surface 211, thereby ensuring the stability and durability of the bristle cluster 30. The free end 32 is used to contact the user's teeth during use. In addition, the bristle cluster 30 includes multiple bristles, which can be straight bristles, as straight bristles have a simple structure and are easy to manufacture. Alternatively, the bristles can be curved bristles, for example, spiral or S-shaped bristles. Curved bristles have a larger projection coverage area on the bristle-embedded surface 211, providing a larger contact area with the teeth. For example, the bristles can be made of nylon.

[0074] In one embodiment of this application, the hair-planting surfaces 211 of the hair-planting portions 21 are all perpendicular to the plane formed by the length direction and the thickness direction, and the hair-planting surfaces 211 of adjacent hair-planting portions 21 are arranged at an angle, so that the whole composed of multiple hair-planting portions 21 is tilted towards the side closer to the hair-planting surface 211. In addition, the hair-planting portions 21 also have a width direction, and the width direction, thickness direction and length direction are perpendicular to each other. It can be understood that the hair-planting surfaces 211 of the hair-planting portions 21 are parallel to or coplanar with the width direction.

[0075] The brush head 100 in this application includes a brush plate 20 connected to the first connecting rod 11 of the brush handle 10. This plate includes at least two bristle-embedded sections 21 and at least one connecting section 22 arranged sequentially along its length. The bristle-embedded surfaces 211 of adjacent sections 21 are angled together, so that the entire structure formed by the multiple bristle-embedded sections 21 is tilted towards the side closest to the bristle-embedded surface 211. This design allows the brush head 100 to conform to the curved contour of the teeth during oral cleaning, increasing the bristle density of the bristle tufts 30. This, in turn, allows the free ends 32 of the bristle tufts 30 on the bristle-embedded surfaces 211 of the sections 21 to be closer to the user's teeth and have stronger cleaning power. This improved fit and bristle density not only enhances the cleaning effect and reduces missed areas, but also reduces discomfort caused by uneven friction between the brush head 100 and the tooth surface.

[0076] As an embodiment of this application, the included angle between the hair implantation surfaces 211 of adjacent hair implantation portions 21 is not less than 0° and not greater than 10°. Specifically, when the included angle between the hair implantation surfaces 211 of adjacent hair implantation portions 21 can be 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, etc., such angle limitation makes the transition between adjacent hair implantation surfaces 211 relatively smooth, ensuring both uniform overall coverage of the hair implantation surfaces 211 and facilitating the adaptation of the hair implantation surfaces 211 to the curvature of the tooth when subjected to force. Therefore, by controlling the included angle within the range of 0° to 10°, it can be ensured that the hair implantation portions 21 are neither too dispersed nor too dense, thereby achieving optimal coverage and cleaning efficiency.

[0077] Reference Figure 3 In one embodiment of this application, adjacent bristle-planting surfaces 211 are arranged at an angle: the connecting portion 22 has a first surface 221 and a second surface 222 arranged opposite to each other in the length direction, and the first surface 221 and the second surface 222 are respectively connected to two adjacent bristle-planting portions 21. In the length direction, the first surface 221 is parallel to the end face of the bristle-planting portion 21 near the brush handle 10, the second surface 222 is arranged at an angle to the first surface 221, and the distance between the first surface 221 and the second surface 222 in the length direction gradually increases from the bristle-planting surface 211 to the back surface 212.

[0078] This design allows the included angle between the first surface 221 and the second surface 222 of the connecting portion 22 to influence the shape of the bristle implantation surface 211 of the bristle implantation portion 21. Due to this characteristic of the connecting portion 22, the bristle implantation surfaces 211 of the spaced-apart bristle implantation portions 21 also exhibit an included angle. This included angle design allows the bristle implantation portion 21 to better adapt to the curved shape of teeth and gums, thereby improving the cleaning effect. During oral cleaning, the bristle tufts 30 can fit more closely to the tooth surface, ensuring that each tooth is thoroughly cleaned, while also providing users with a more comfortable and efficient cleaning experience.

[0079] Furthermore, the opposing end faces of two adjacent bristle implants 21 are arranged at an angle. This angled arrangement of the end faces allows the shape of the bristle implants 21 to influence the angled arrangement of adjacent bristle implant surfaces 211, making it easier for the entire structure of the bristle implants 21 to tilt towards the side closer to the bristle implant surface 211, thus better conforming to tooth surfaces of different shapes and positions. This layout not only enhances the comprehensiveness and thoroughness of cleaning but also makes the brushing process smoother, further improving user comfort and cleaning efficiency.

[0080] Furthermore, the included angle between the opposing end faces of two adjacent bristle implants 21 is equal to the included angle between the first surface 221 and the second surface 222. This design strategy ensures the consistency of the included angles throughout the entire structure, from the connecting part 22 to the bristle implant 21, thereby achieving a more precise morphological match. Due to this consistency of angles, the arrangement and distribution of the bristle implants 21 in the oral cavity are more harmonious, allowing them to fit more closely to the complex curves of the teeth, especially in hard-to-reach interdental areas. This design not only enhances the efficiency and comprehensiveness of cleaning and reduces blind spots, but also makes brushing movements smoother, further improving the user experience and cleaning effect.

[0081] For example, the hair implantation section 21 includes a first hair implantation section 21A and a second hair implantation section 21B. The first hair implantation section 21A is connected to the first connecting rod 11, and the second hair implantation section 21B is located on the side away from the first connecting rod 11 along the length direction. The two end faces of the first hair implantation section 21A are arranged in parallel along the length direction, and the two end faces of the second hair implantation section 21B are arranged in parallel along the length direction.

[0082] This design ensures the structural stability and consistency of the bristle implantation section 21. The first bristle implantation section 21A is connected to the brush handle 10 via the first connecting rod 11, providing stable support for the entire brush head 100. The second bristle implantation section 21B, due to its parallel end faces, maintains a coordinated arrangement with the first and second bristle implantation sections 21A and 21B, thus forming a unified and harmonious layout across the entire brush head 100. Furthermore, the parallel end faces contribute to the even distribution of the bristle implantation sections 21 in the oral cavity, allowing the bristles to more comprehensively cover the tooth surface and improve cleaning efficiency. Simultaneously, this design simplifies the manufacturing and assembly process of the bristle implantation section 21, reducing production costs.

[0083] For example, the area of ​​the bristle implantation surface 301 of the first bristle implantation part 21A is larger than that of the bristle implantation surface 301 of the second bristle implantation part 21B. On one hand, the connection between the first bristle implantation part 21A and the first connecting rod 11 enhances the support of the first bristle implantation part 21A. When the brush head 100 is moved in the oral cavity, it ensures better contact between the first bristle implantation part 21A and the teeth. The second bristle implantation part 21B is located away from the first connecting rod 11 and is connected to the first bristle implantation part 21A via the connecting part 22. Because the connecting part 22 is deformable, the second bristle implantation part 21B can have a greater range of motion during vibration, thereby contacting different positions of the area to be cleaned, achieving cleaning of all areas of the area to be cleaned. On the other hand, when the electric toothbrush head 100 is working, the first bristle implantation part 21A has a larger contact area with the oral cavity than the second bristle implantation part 21B. The larger area of ​​the first bristle implantation part 21A is beneficial to improving oral cleaning efficiency. The second bristle implantation section 21B is usually closer to the inside of the oral cavity than the first bristle implantation section 21A. The area of ​​the second bristle implantation section 21B is designed to be smaller, which can reduce the feeling of foreign objects in the oral cavity and improve the mobility of the electric toothbrush head 100 in the oral cavity.

[0084] Combined with reference Figure 4 and Figure 5 For example, the hair implantation section 21 includes a first hair implantation section 21A, a second hair implantation section 21B, and a third hair implantation section 21C. The first hair implantation section 21A is connected to the first connecting rod 11. The third hair implantation section 21C is located on the side away from the first connecting rod 11 along the length direction. The second hair implantation section 21B is located between the first hair implantation section 21A and the third hair implantation section 21C. The two end faces of the first hair implantation section 21A, the second hair implantation section 21B, and the third hair implantation section 21C are arranged in parallel along the length direction.

[0085] Since the three hair implants 21 are designed to be arranged in parallel at their two end faces along their length, this design not only ensures the structural stability and consistency of the hair implants 21, but also helps to distribute the hair implants 21 evenly in the oral cavity, thus improving cleaning efficiency.

[0086] It is understandable that the first bristle implantation section 21A, the second bristle implantation section 21B, and the third bristle implantation section 21C are all connected. When the first surface 221 and the second surface 222 of the connecting section 22 are set at an angle, along the length direction, the angle between the end face of the third bristle implantation section 21C and one end face of the first bristle implantation section 21A is greater than or equal to the angle between the end face of the second bristle implantation section 21B and the end face of the first bristle implantation section 21A. That is, the third bristle implantation section 21C, which is away from the first connecting rod 11, is tilted at a larger angle toward the side closer to the bristle implantation surface 211. This design allows the bristles to fit more closely to the curved contour of the teeth, and can significantly improve the cleaning effect, especially when dealing with hard-to-reach interdental areas.

[0087] The connection between the first bristle implant 21A and the first connecting rod 11 enhances the support of the first bristle implant 21A. When the electric toothbrush head 100 is moved in the oral cavity, it ensures better contact between the first bristle implant 21A and the teeth. The second bristle implant 21B is furthest from the first connecting rod 11 and is connected to the third bristle implant 21C via the connecting part 22. Because the connecting part 22 is deformable, the second bristle implant 21B can have a greater range of motion during vibration, thereby contacting different positions of the area to be cleaned. When the bristle tuft 30 is subjected to force and the connecting part 22 deforms, the first bristle implant 21A and the second bristle implant 21B can move in various directions away from the third bristle implant 21C, so that the bristle tuft 30 provided on the third bristle implant 21C, the first bristle implant 21A, and the second bristle implant 21B can contact different positions of the area to be cleaned, thereby achieving cleaning of all areas of the area to be cleaned. It is understood that in other embodiments of this application, the brush plate 20 may include four, five or more bristle-planting sections 21.

[0088] Combined with reference Figures 3 to 5 As another embodiment of this application where adjacent tufted surfaces 211 are arranged at an angle: the tufted portion 21 has two opposing end faces in the length direction, and the two end faces are arranged at an angle. Specifically, the two opposing end faces of the tufted portion 21 in the length direction refer to the surfaces of the tufted portion 21 that are connected to the connecting portions 22 on both sides in the length direction. In this way, by directly making the two end faces of the tufted portion 21 at an angle, this design strategy directly and effectively achieves the angle arrangement between adjacent tufted surfaces 211. Specifically, by directly designing the two end faces of the tufted portion 21 as an angle, without the need for additional structures or components, and without adjusting the angle of the bristle tuft 30 by tilting the tufts, it is easy to form an angle between adjacent tufted surfaces 211. This design not only simplifies the manufacturing and assembly process of the tufted portion 21 and reduces production costs, but also improves the adaptability and flexibility of the tufted surface 211 in the oral cavity.

[0089] For example, the hair implantation section 21 includes a first hair implantation section 21A and a second hair implantation section 21B. The first hair implantation section 21A is connected to the first connecting rod 11, and the second hair implantation section 21B is located on the side away from the first connecting rod 11 along the length direction. In the length direction, the two end faces of the first hair implantation section 21A are arranged at an angle, and the two end faces of the second hair implantation section 21B are arranged parallel or at an angle.

[0090] Thus, the two end faces of the first bristle implant 21A are designed to be angled together along its length. This design allows the first bristle implant 21A to better adapt to the curved contours of the teeth in the oral cavity, and can significantly improve cleaning effectiveness, especially when dealing with hard-to-reach interdental areas.

[0091] The second pilaster 21B has two end faces designed to be either parallel or angled. This design offers greater flexibility; they can be parallel to simplify manufacturing and assembly, reducing production costs. Alternatively, they can be angled to provide greater adjustment range. When the end faces of the second pilaster 21B are angled, this design allows for indirect adjustment of the angle between the pilaster surfaces 211 of the two pilasters 21 by adjusting the angle of the end faces of the first pilaster 21A, and also enables more precise angle adjustment by directly adjusting the angle of the end faces of the second pilaster 21B. This dual adjustment mechanism allows the pilaster 21 to more flexibly adapt to different users' oral environments and cleaning needs, thus providing a more personalized and efficient cleaning experience.

[0092] For example, the hair implantation section 21 includes a first hair implantation section 21A, a second hair implantation section 21B, and a third hair implantation section 21C. The first hair implantation section 21A is connected to the first connecting rod 11, the third hair implantation section 21C is located on the side away from the first connecting rod 11 along the length direction, and the second hair implantation section 21B is located between the first hair implantation section 21A and the third hair implantation section 21C.

[0093] Along its length, the two end faces of the first bristle implant 21A are set at an angle. This design allows the bristle implant surface 211 of the first bristle implant 21A to better adapt to the curved contour of the teeth, and can significantly improve the cleaning effect, especially when dealing with hard-to-reach interdental areas.

[0094] The two end faces of the second hair implant 21B are set at an angle. This design not only enhances the structural stability of the second hair implant 21B, allowing it to be more firmly connected between the first hair implant 21A and the third hair implant 21C, but also allows the hair implant surface 211 of the second hair implant 21B to closely fit the tooth surface, further improving the comprehensiveness and thoroughness of cleaning.

[0095] Understandably, the two end faces of the second bristle-planting part 21B can also be set in parallel. Specifically, the two end faces of the first bristle-planting part 21A are set at an angle, the two end faces of the second bristle-planting part 21B can also be set in parallel, and the two end faces of the third bristle-planting part 21C are set at an angle. Through this design, it can also be ensured that the overall structure of the multiple bristle-planting parts 21 of the brush head 100 is tilted towards the side where the bristle-planting surface 211 is located.

[0096] The two end faces of the third piloerection unit 21C are arranged in parallel. This design simplifies the manufacturing and assembly process of the third piloerection unit 21C and reduces production costs. At the same time, the parallel end faces also ensure that the third piloerection unit 21C remains stable in the oral cavity, is not easily deformed or dislodged, and thus ensures safety and comfort during brushing.

[0097] It is understandable that if the two end faces of the second bristle-planting part 21B are set at an angle, the two end faces of the third bristle-planting part 21C can also be designed to be set at an angle. With this design, it is also possible to ensure that the overall structure of the multiple bristle-planting parts 21 of the brush head 100 is tilted towards the side where the bristle-planting surface 211 is located.

[0098] It is understandable that if the brush head 10 has multiple bristle-planting parts 21, and the multiple bristle-planting parts 21 can be arranged such that the two end faces of the bristle-planting parts 21 are angled together, the overall orientation of the brush head 100 is tilted towards the side where the bristle-planting surface 211 is located. The number of bristle-planting parts 21 of the brush head 100 is not limited to 2, 3, 4 or more.

[0099] Furthermore, in the longitudinal direction, the angle between the end face of the third piloerection portion 21C and the end face of the first piloerection portion 21A is greater than or equal to the angle between the end face of the second piloerection portion 21B and the end face of the first piloerection portion 21A. Since the third piloerection portion 21C is located on the side away from the first connecting rod 11, the angle between the end face of the third piloerection portion 21C and the end face of the first piloerection portion 21A in the longitudinal direction is designed to be greater than or equal to the angle between the end faces of the second piloerection portion 21B and the first piloerection portion 21A. This design strategy is based on a deep understanding and analysis of the human oral cavity structure, aiming to allow the piloerection surface 211 of the third piloerection portion 21C to form a smoother and more conforming curved surface, thus better conforming to the natural curve of the teeth, especially significantly improving cleaning efficiency when dealing with hard-to-reach areas between teeth.

[0100] In one embodiment of this application, the hardness of the bristle-embedded part 21 is greater than that of the connecting part 22. The bristle-embedded part 21, as the part directly involved in the cleaning operation, needs to possess a certain degree of hardness and wear resistance to ensure effective removal of stains and maintain shape stability during the cleaning process. The connecting part 22, on the other hand, primarily serves to connect and support the bristle-embedded part 21. Its relatively lower hardness helps to provide a certain degree of flexibility while maintaining sufficient strength, adapting to the cleaning needs of different shapes and surfaces. Through the design of the hardness difference between the bristle-embedded part 21 and the connecting part 22, a good complementary relationship is formed between them, ensuring both the cleaning effect of the brush head 100 and improving its adaptability and durability. Furthermore, this hardness difference also helps to achieve more precise material selection and cost control during the manufacturing process, thereby providing a more efficient and economical cleaning solution.

[0101] Optionally, the thickness of the bristle-embedded portion 21 is greater than the thickness of the connecting portion 22 along the thickness direction. The bristle-embedded portion 21, as the part that directly contacts and acts on the cleaning surface, needs sufficient thickness to ensure its durability under pressure and abrasion, as well as to provide sufficient cleaning area and effect. The connecting portion 22, on the other hand, mainly serves a connecting and supporting function; its relatively smaller thickness reduces the overall weight of the brush head 100 while ensuring structural stability, thus improving operational flexibility and comfort. Through the design of the thickness difference between the bristle-embedded portion 21 and the connecting portion 22, a reasonable division of labor is achieved between them, ensuring both the cleaning efficiency and durability of the brush head 100, while also optimizing its overall performance and user experience.

[0102] Optionally, along the width direction, the width of the bristle-embedded portion 21 is greater than the width of the connecting portion 22, and the width direction, thickness direction, and length direction are perpendicular to each other. Similar to the thickness setting mentioned above, through the design of the width difference between the bristle-embedded portion 21 and the connecting portion 22, the bristle-embedded portion 21 and the connecting portion 22 form a reasonable division of labor in terms of function, which not only ensures the cleaning efficiency and durability of the brush head 100, but also optimizes its overall performance and user experience.

[0103] Optionally, the width of the connecting portion 22 in the width direction is greater than its thickness in the thickness direction. As a bridge between the bristle-embedded portions 21, the connecting portion 22 needs sufficient width to distribute stress and transmit force from the bristle-embedded portions 21, ensuring structural stability. A smaller thickness helps reduce overall weight and improves the flexibility and response speed of the brush head 100. Through the reasonable combination of width and thickness, the connecting portion 22 not only maintains sufficient strength and rigidity but also optimizes the overall lightweight structure.

[0104] It should also be noted that when we say the thickness of the hair-planting portion 21 is greater than the thickness of the connecting portion 22, it does not mean that the thickness of the hair-planting portion 21 at any position is greater than the thickness of the connecting portion 22 at any position. Rather, it means that the thickness of the hair-planting portion 21 at at least one position is greater than the thickness of the connecting portion 22 at at least one position. Similarly, when we say that the width of the hair-planting portion 21 is greater than the width of the connecting portion 22 along the width direction, it does not mean that the width of the hair-planting portion 21 at any position is greater than the width of the connecting portion 22 at any position. Rather, it means that the width of the hair-planting portion 21 at at least one position is greater than the width of the connecting portion 22 at at least one position.

[0105] As one embodiment of this application, the deformation of the connecting part 22 can cause the brush plate 20 to bend and deform towards the side where the bristle implantation surface 211 is located and towards the side where the back surface 212 is located. Thus, when the connecting part 22 can deform, during the cleaning process, when the bristle tufts 30 of the brush head 100 come into contact with the surface of the human tooth, the bristle tufts 30 are subjected to force and transmitted to the brush plate 20, causing the position of the brush plate 20 to deform. This, in turn, causes the bristle implantation parts 21 connected to both ends of the connecting part 22 to bend around the connecting part 22 until the bristle tufts 30 are evenly adhered to the surface of the human tooth. At this point, the bristle tufts 30 are subjected to balanced force, and the bending deformation of the brush plate 20 will match the shape of the tooth. Therefore, the bristle tufts 30 can better and more thoroughly clean the tooth surface, thereby better ensuring the cleanliness of the tooth surface.

[0106] Furthermore, the amount of bending deformation of the brush plate 20 towards the bristle surface 211 is less than that towards the back surface 212. This is not only more ergonomic, but also because people's brushing habits make the back surface 212 more flexible and user-friendly. During brushing, people typically hold the main body of the oral care device and control the brush head 100 through wrist and finger movements. In this process, the brush plate 20 towards the back surface 212 naturally bears more bending force. To better conform to the shape of the teeth and the contour of the mouth for a thorough and meticulous cleaning, it is reasonable to design the brush plate 20 towards the back surface 212 to be more flexible. This allows for more flexible operation of the brush head 100 during brushing, easily cleaning all surfaces of the teeth (including the inner surfaces and harder-to-clean areas such as molars) and the contour of the mouth, thus improving the cleaning effect of the brush head 100.

[0107] On the other hand, this design better protects the bristle tufts 30 on the side of the brush plate 20 facing the bristle-planting surface 211. If the side of the brush plate 20 facing the bristle-planting surface 211 is prone to excessive bending or has a large bending range, it will lead to disordered arrangement of the bristle tufts 30, affecting their normal function. Furthermore, excessive bending will cause excessive stress on the fixed end 31 of the bristle tufts 30, shortening the lifespan of the bristles. Therefore, ensuring that the bending range of the brush plate 20 on the side facing the bristle-planting surface 211 is less than that on the side facing the back surface 212 of the bristle-planting surface 21 will effectively maintain the neat arrangement of the bristle tufts 30 and provide a good brushing effect.

[0108] Combined with reference Figures 3 to 5 In one embodiment of this application, the connecting portion 22 does not extend beyond the tufting surface 211 in the thickness direction. This allows the connecting portion 22 to deform while maintaining the compactness of the overall structure of the brush plate 20. Optionally, the connecting portion 22 does not extend beyond the back surface 212 in the thickness direction. Similarly, this also facilitates the deformation of the connecting portion 22 while maintaining the compactness of the overall structure of the brush plate 20. Furthermore, in the thickness direction, the distance between the connecting portion 22 and the tufting surface 211 is greater than the distance between the connecting portion 22 and the back surface 212. This arrangement not only further facilitates the deformation of the connecting portion 22 but also helps to improve the performance and durability of the brush plate 20.

[0109] As an embodiment of this application, a reinforcing portion 23 is provided on the back surface 212 to strengthen the bristle-planting portion 21. This reinforcing portion 23 strengthens the bristle-planting portion 21, thereby ensuring sufficient stability and durability of the entire brush plate 20. The design logic is that the introduction of the reinforcing portion 23 effectively disperses and withstands various external forces during use, protecting the bristle-planting portion 21 from damage. Furthermore, the cross-section of the reinforcing portion 23, cut by a plane perpendicular to the thickness direction, gradually decreases from the bristle-planting surface 211 to the back surface 212. This design not only optimizes material utilization efficiency but also increases the contact area with surrounding structures through the gradually decreasing cross-section, further enhancing the overall connection strength and stability. Simultaneously, it ensures that the connecting portion 22 will not be interfered with by the reinforcing portion 23 when the bristle-planting portion 21 undergoes bending deformation.

[0110] Combined with reference Figures 1 to 3 As an embodiment of this application, the brush head 100 further includes a soft rubber component 40, which covers the bristle-planting portion 21 and the connecting portion 22. The soft rubber component 40 has a soft rubber front side 41 and a soft rubber back side 42 disposed opposite to each other along the thickness direction. The thickness direction is perpendicular to the length direction. The free ends 32 of the multiple bristle clusters 30 protrude from the soft rubber front side 41. The hardness of the soft rubber component 40 is less than the hardness of the connecting portion 22 and the bristle-planting portion 21.

[0111] Because the soft rubber component 40 is made of a soft and flexible material, it provides excellent cushioning when the brush head 100 comes into contact with the mouth. This feature is especially important for protecting the user's oral health, particularly for those with sensitive teeth or gums, as it significantly reduces the potential damage to oral tissues caused by the brush head 100, thus providing a gentler and safer cleaning experience.

[0112] In addition, the soft rubber part 40 also acts as a protective layer, effectively extending the service life of the flocking part 21 and the connecting part 22. In daily use, the flocking part 21 and the connecting part 22 may be damaged by direct impact, but the presence of the soft rubber part 40 provides them with a buffer, reducing the risk of damage.

[0113] In terms of specific manufacturing process, the soft rubber part 40 can be tightly wrapped around the bristle-planting part 21 and the connecting part 22 by injection molding. This process not only ensures the firm bond between the soft rubber part 40 and other parts of the brush head 100, but also improves the overall structural strength and durability.

[0114] Optionally, the flocked surface 211 and the soft rubber front 41 are flush along the thickness direction. From a user experience perspective, the flush surface makes the overall feel smoother and more consistent, and users are less likely to come into contact with the flocked surface 211 during use, thus significantly improving user comfort and satisfaction. From a functional perspective, the flush design reduces cleaning difficulties because the seamless connection between the flocked surface 211 and the soft rubber front 41 effectively prevents dust and dirt from accumulating in the gaps. This not only simplifies daily cleaning but also further extends the service life of the brush plate 20.

[0115] In another embodiment, the bristle-embedded surface 211 protrudes from the soft rubber surface 41 along the thickness direction. The protruding bristle-embedded surface 211 can reach and clean the target area more deeply, especially those hard-to-reach corners and crevices. In addition, the protruding design can increase the contact pressure between the bristle tufts 30 and the surface to be cleaned, thereby further improving the cleaning effect.

[0116] In addition, the soft rubber part 40 may be used to completely cover the reinforcing part 23. It should be noted that the way the soft rubber part 40 completely covers the reinforcing part 23 is to completely cover the back side 212 of the multiple hair-planting parts 21.

[0117] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0118] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A brush head, characterized in that, The brush head includes: The brush handle includes a first connecting rod and a second connecting rod arranged along the length direction, one end of the second connecting rod being connected to the drive component of the oral care device, and the other end being connected to the first connecting rod; A brush plate, connected to the first connecting rod, the brush plate including at least two bristle-planting sections and at least one connecting section arranged sequentially at intervals along the length direction, the connecting section being connected to two adjacent bristle-planting sections, each bristle-planting section having a bristle-planting surface and a back surface arranged opposite to each other along the thickness direction, the bristle-planting surface being provided with bristle-planting holes; and A multi-brush bristle cluster, the bristle cluster including a fixed end and a free end, the fixed end of the bristle cluster being located at the bristle implantation hole, and the free end extending out of the bristle implantation surface; The hair-planting surfaces of each hair-planting part are perpendicular to the plane formed by the length direction and the thickness direction, and the hair-planting surfaces of two adjacent hair-planting parts are set at an angle, so that the whole composed of multiple hair-planting parts is tilted towards the side closer to the hair-planting surface.

2. The brush head as described in claim 1, characterized in that, The included angle between adjacent hair-planting surfaces is not less than 0° and not greater than 10°.

3. The brush head as described in claim 1, characterized in that, The connecting portion has a first surface and a second surface that are disposed opposite to each other in the length direction, and the first surface and the second surface are respectively connected to two adjacent hair-planting portions; In the length direction, the first surface is parallel to the end face of the bristle-planting portion near the bristle-planting portion of the brush handle, the second surface is set at an angle to the first surface, and the distance between the first surface and the second surface in the length direction gradually increases from the bristle-planting surface to the back surface.

4. The brush head as described in claim 3, characterized in that, The opposing end faces of two adjacent hair-planting sections are arranged at an angle.

5. The brush head as described in claim 4, characterized in that, The included angle between the opposite end faces of two adjacent hair-planting sections is equal to the included angle between the first surface and the second surface.

6. The brush head as described in claim 3, characterized in that, The hair-planting section includes a first hair-planting section and a second hair-planting section. The first hair-planting section is connected to the first connecting rod, and the second hair-planting section is located on the side away from the first connecting rod along the length direction. The first hair-planting part is arranged parallel to the two end faces along the length direction, and the second hair-planting part is arranged parallel to the two end faces along the length direction.

7. The brush head as described in claim 3, characterized in that, The hair-planting section includes a first hair-planting section, a second hair-planting section, and a third hair-planting section. The first hair-planting section is connected to the first connecting rod. The third hair-planting section is located on the side away from the first connecting rod along the length direction. The second hair-planting section is located between the first hair-planting section and the third hair-planting section. The first hair-planting part is arranged parallel to the two end faces along the length direction, the second hair-planting part is arranged parallel to the two end faces along the length direction, and the third hair-planting part is arranged parallel to the two end faces along the length direction. Along the length direction, the angle between the end face of the third hair-planting part and one side end face of the first hair-planting part is greater than or equal to the angle between the end face of the second hair-planting part and the end face of the first hair-planting part.

8. The brush head as described in claim 1, characterized in that, The hair-embedded part has two opposing end faces along the length direction, and the two end faces are arranged at an included angle.

9. The brush head as described in claim 8, characterized in that, The hair-planting section includes a first hair-planting section and a second hair-planting section. The first hair-planting section is connected to the first connecting rod, and the second hair-planting section is located on the side away from the first connecting rod along the length direction. In the length direction, the two end faces of the first hair-planting part are arranged at an angle, and the two end faces of the second hair-planting part are arranged parallel or at an angle.

10. The brush head as described in claim 8, characterized in that, The hair-planting section includes a first hair-planting section, a second hair-planting section, and a third hair-planting section. The first hair-planting section is connected to the first connecting rod. The third hair-planting section is located on the side away from the first connecting rod along the length direction. The second hair-planting section is located between the first hair-planting section and the third hair-planting section. In the length direction, the two end faces of the first hair-planting portion are set at an included angle, and / or The two end faces of the second hair-planting part are set at an included angle, and / or The two end faces of the third hair-planting section are arranged in parallel.

11. The brush head as described in claim 10, characterized in that, In the length direction, the angle between the end face of the third hair-planting part and the end face of the first hair-planting part is greater than or equal to the angle between the end face of the second hair-planting part and the end face of the first hair-planting part.

12. The brush head as described in any one of claims 1 to 11, characterized in that, The hardness of the hair-embedded portion is greater than the hardness of the connecting portion; and / or, Along the thickness direction, the thickness of the hair-planting portion is greater than the thickness of the connecting portion; and / or, Along the width direction, the width of the hair-planting portion is greater than the width of the connecting portion, wherein the width direction, the thickness direction, and the length direction are all perpendicular to each other; and / or, The width of the connecting portion along the width direction is greater than the thickness of the connecting portion along the thickness direction, wherein the width direction, the thickness direction and the length direction are perpendicular to each other.

13. The brush head as described in any one of claims 1 to 11, characterized in that, The deformation of the connecting part can cause the brush plate to bend and deform towards the side where the bristle-planting surface is located and towards the side where the back is located.

14. The brush head as described in claim 13, characterized in that, The amount of bending deformation of the brush plate towards the hair-planting surface is less than the amount of bending deformation of the brush plate towards the back side.

15. The brush head as described in claim 1, characterized in that, In the thickness direction, the connecting portion does not extend beyond the flocked surface; and / or, in the thickness direction, the connecting portion does not extend beyond the back surface.

16. The brush head as described in claim 15, characterized in that, In the thickness direction, the distance between the connecting portion and the flocked surface is greater than the distance between the connecting portion and the back surface.

17. The brush head as described in any one of claims 1 to 11, characterized in that, A reinforcing part is provided on the back side, which is used to strengthen the hair-planting part.

18. The brush head as claimed in claim 17, characterized in that, In the direction from the flocked surface to the back surface, the cross-section of the reinforcing portion cut by a plane perpendicular to the thickness direction gradually decreases.

19. The brush head as described in any one of claims 1 to 11, characterized in that, The brush head also includes a soft rubber component, which covers the bristle-planting part and the connecting part. The soft rubber component has a soft rubber front and a soft rubber back that are arranged opposite each other along the thickness direction. The free ends of the multiple bristle clusters protrude from the soft rubber front. The hardness of the soft rubber component is less than that of the connecting part and the bristle-planting part. Along the thickness direction, the flocked surface and the front of the soft rubber are flush; Alternatively, along the thickness direction, the flocked surface protrudes from the front of the soft rubber.

20. An oral care device, characterized in that, The oral care equipment includes: The brush head as described in any one of claims 1 to 19; and The main body, wherein the driving component of the main body is detachably connected to the brush head.

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