Electric toothbrush head

Abstract

The utility model belongs to the field of electric toothbrushes, and particularly relates to an electric toothbrush head. At least part of the bristle planting part is arranged in the flexible glue, and the bristle planting part comprises a first bristle planting part and a second bristle planting part; wherein the covering area of the first bristle planting part comprises a central bristle planting area and a lower bristle planting area, the central bristle planting area is distributed in the middle of the front surface of the toothbrush head, the lower bristle planting area is distributed at the lower position of the toothbrush head, and the bristle planting part corresponding to the central bristle planting area is connected with the bristle planting part corresponding to the lower bristle planting area; the second bristle planting part is distributed on the periphery of the front surface of the toothbrush head and is independent from the first bristle planting part; the bristles are arranged on the bristle planting parts, the top ends of the bristles extend out of the soft rubber, and the tail ends of the bristles in each bristle planting area are gathered to form bristle clusters.

Description

Technical Field

[0001] This utility model belongs to the field of electric toothbrushes, and specifically relates to an electric toothbrush head. Background Technology

[0002] Electric toothbrushes typically use a motor to transmit vibrations to the brush head, causing the brush head to vibrate accordingly to clean teeth.

[0003] During brushing, the middle area of ​​the brush head is often the main point of force. The upper part and left and right sides of the middle area of ​​the brush head often need a lot of freedom to reach into the gaps between the teeth for cleaning. The lower part of the middle area of ​​the brush head is used less frequently than other parts, and the corresponding cleaning effect is weaker.

[0004] Existing toothbrush heads come in a variety of forms, and the arrangement of bristles on the toothbrush head is also diverse. However, in most toothbrush heads, the bristle implantation part is a single unit, meaning that the bristles implanted into this unit have the same degree of elasticity and freedom. This makes it impossible to adapt to the way the toothbrush is used during brushing, resulting in poor cleaning effect and a poor user experience. Utility Model Content

[0005] This utility model is proposed based on the above-mentioned needs of the prior art. The technical problem to be solved by this utility model is to provide an electric toothbrush head to improve cleaning efficiency and user experience.

[0006] To solve the above problems, the technical solution provided by this utility model includes:

[0007] An electric toothbrush head is provided, comprising: a soft rubber; a bristle implantation section, at least partially disposed in the soft rubber, the bristle implantation section including a first bristle implantation section and a second bristle implantation section; wherein the coverage area of ​​the first bristle implantation section includes a central bristle implantation area and a lower bristle implantation area, the central bristle implantation area being distributed in the middle of the front surface of the toothbrush head, the lower bristle implantation area being distributed in the lower position of the toothbrush head, and the bristle implantation section corresponding to the central bristle implantation area and the bristle implantation section corresponding to the lower bristle implantation area being connected; the second bristle implantation section being distributed on the periphery of the front surface of the toothbrush head, and being disposed independently of the first bristle implantation section; bristles being disposed on the bristle implantation section, the tips of which extend beyond the soft rubber, and the bristle tips in each bristle implantation area agglomerating to form bristle tufts.

[0008] The above settings allow the bristles in the first and second bristle implantation areas to move independently, adapting to the different degrees of freedom required by different areas during brushing. In addition, since the area corresponding to the lower bristle implantation area is used less frequently during brushing than other areas, the first bristle implantation area establishes a connection between the bristle implantation parts in the central area and the bristle implantation parts in the lower area, thereby creating an influence.

[0009] Preferably, the hair-planting portion corresponding to the central hair-planting area and the hair-planting portion corresponding to the lower hair-planting area are connected by a connecting rib.

[0010] The connecting ribs connect the hair-planting parts corresponding to the central hair-planting area and the hair-planting parts corresponding to the lower hair-planting area into a whole, and at the same time, they can serve as a glue channel for injection molding, which facilitates production.

[0011] Preferably, the second hair implantation section includes multiple independent sub-hair implantation sections, and adjacent sub-hair implantation sections are connected by connecting ribs.

[0012] Connecting ribs link the central and lower hair implantation areas into a single unit, while also serving as a flow channel for injection molding, facilitating production. Multiple independent sub-hair implantation sections allow for free movement, resulting in efficient tooth cleaning.

[0013] Preferably, the central hair-planting area includes a first sub-region, a second sub-region, and a third sub-region connected in sequence. Each of the first, second, and third sub-regions includes a central cluster area and a surrounding cluster area. The central cluster area is located at the center of the corresponding area, and the surrounding cluster areas are arranged around the central cluster area.

[0014] The above settings are designed to allow for better cleaning of teeth.

[0015] Preferably, the surrounding cluster region includes multiple independent sub-surrounding cluster regions, which are arranged rotationally symmetrically with respect to the central cluster region.

[0016] Preferably, the shape of the sub-hair implantation portion includes a triangle, a quadrilateral, a pentagon, or a more polygonal shape.

[0017] Preferably, the second hair-planting part and the hair-planting part corresponding to the lower hair-planting area form a ring, which surrounds the central hair-planting area. The hair-planting parts forming the ring are arranged in a centrally symmetrical manner with the central hair-planting area as the center, and are also arranged in an axially symmetrical manner with the central axis of the central hair-planting area as the axis.

[0018] Preferably, the hair implantation part includes a hair implantation retaining ring, and the hair implantation retaining ring is provided with a retaining ring step.

[0019] The retaining ring is used to constrain the bristle bundles, keeping them within the toothbrush head. A retaining ring step is also provided on the retaining ring to improve the manufacturability of the retaining ring in injection molding of soft plastic while reducing the precision requirements of the mold components.

[0020] Preferably, a hair-implanting cavity is formed within the hair-implanting section, and the sidewall of the hair-implanting cavity slopes outward from top to bottom, such that the cross-section of the hair-implanting cavity at the upper position is smaller than the cross-section at the lower position.

[0021] This design facilitates the removal of the bristle implant from the mold while simultaneously providing a more secure and stable grip on the implanted bristles.

[0022] Preferably, the retaining ring corresponding to the sub-hair implantation portion on the upper part of the second hair implantation portion is higher than the retaining rings of other hair implantation portions.

[0023] During the automated tufting process using equipment, it is convenient to divide the tufting section into sections at the beginning and end, thereby improving production efficiency.

[0024] Compared with the prior art, this utility model sets up a first hair implantation area and a second hair implantation area that can move independently of each other, in order to adapt to the different degrees of freedom required by different areas during brushing. In addition, since the area corresponding to the lower hair implantation area is used less frequently during brushing than other parts, by setting up the first hair implantation area, a connection is established between the hair implantation part of the central area and the hair implantation part of the lower area to generate influence. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this specification 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 recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.

[0026] Figure 1 This is a partial structural diagram of the electric toothbrush head in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the distribution structure of the first bristle implantation part of the electric toothbrush head in an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the distribution structure of the second bristle implantation part of the electric toothbrush head in an embodiment of this utility model;

[0029] Figure 4 This is a partial structural diagram of the bristle-planting part of the electric toothbrush head in an embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the bristle implantation part of the electric toothbrush head from another angle in an embodiment of this utility model.

[0031] Figure label:

[0032] 1. First hair implantation section; 2. Second hair implantation section; 3. Central hair implantation area; 4. Lower hair implantation area; 5. First sub-area; 6. Second sub-area; 7. Third sub-area; 8. Central cluster area; 9. Sub-surround cluster area; 10. Sub-hair implantation section; 11. Hair implantation retaining ring; 12. Retaining ring step; 13. Hair implantation inner cavity; 14. Connecting rib. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connected" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Throughout the text, the terms “top,” “bottom,” “above,” “below,” and “on top” refer to the relative positions of components of the device, such as the relative positions of the top and bottom substrates within the device. It is understood that the device is multifunctional and independent of its spatial orientation.

[0036] To facilitate understanding of the embodiments of this utility model, the following will provide further explanation and description with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0037] This embodiment provides an electric toothbrush head, such as Figures 1-5 As shown.

[0038] The electric toothbrush head includes a soft rubber, a bristle-embedded section, and bristles.

[0039] The tufting portion is at least partially disposed within the soft rubber. The tufting portion is injection molded and includes a connecting rib 14 and a tufting retaining ring 11. The wall thickness of the tufting retaining ring 11 is ≥0.3mm, and the tufting retaining ring 11 forms a tufting inner cavity 13. Further, the cross-sectional area of ​​the tufting inner cavity 13 is 1mm². 2 ~8mm 2 .like Figure 1As shown in the figure, the hair transplantation part includes a first hair transplantation part 1 and a second hair transplantation part 2.

[0040] The first bristle-planting part 1 and the second bristle-planting part 2 are separate from each other and do not interfere with each other, while providing better elasticity to the outer periphery of the bristles.

[0041] like Figure 2 As shown, the first bristle-embedding part 1 is located in the central area of ​​the toothbrush head and is I-shaped; as Figure 3 As shown, the second bristle implantation part 2 is located in the area of ​​the outer ring of the toothbrush head and is C-shaped. Of course, this embodiment does not exclude the possibility of having more bristle implantation parts, whose shape is similar to that formed in this embodiment, except that it is achieved by splicing more bristle implantation parts together.

[0042] like Figure 2 As shown in the figure, the coverage area of ​​the first hair transplantation part 1 includes a central hair transplantation area 3 and a lower hair transplantation area 4 .

[0043] The central bristle implantation area 3 is located in the center of the front of the toothbrush head. This central bristle implantation area 3 includes a first sub-area 5, a second sub-area 6, and a third sub-area 7 that are sequentially connected and interconnected. The first sub-area 5 and the third sub-area 7 are symmetrically arranged about the vertical central axis of the second sub-area 6, and the area of ​​the second sub-area 6 is larger than that of the first sub-area 5 and the third sub-area 7. Each of the three sub-areas includes a central cluster area 8 and surrounding cluster areas. The central cluster area 8 is located at the center of its corresponding sub-area, and the surrounding cluster areas surround the central cluster area 8. Further, the surrounding cluster areas include multiple independent sub-surround cluster areas 9, which are rotationally symmetrical about their corresponding central cluster area 8.

[0044] In one feasible implementation of this embodiment, the central cluster region 8 is arranged in an approximate pentagonal shape at the center of the corresponding sub-region, and the sub-surrounding cluster region 9 is arranged in an approximate triangular shape around the central cluster region 8. The longest side of the sub-surrounding cluster region 9 is close to the central cluster region 8 and parallel to the side of the central cluster region 8, and the shortest side of the sub-surrounding cluster region 9 is parallel to the longest side of the adjacent sub-surrounding cluster region 9.

[0045] The lower bristle implantation area 4 is located at the lower part of the toothbrush head. The bristle implantation part of the central bristle implantation area 3 and the bristle implantation part of the lower bristle implantation area 4 are connected. Connection via soft glue or other structures is not considered a connection in the sense of this invention. Specifically, the bristle implantation parts of the central bristle implantation area 3 and the lower bristle implantation area 4 are connected by a connecting rib 14, making them a single unit, namely the first bristle implantation part 1. The connecting rib 14 serves as a glue channel for injection molding, and its length is ≥0.5mm to maintain elasticity. This arrangement allows the bristles in the central bristle implantation area 3 and the lower bristle implantation area 4 to interact. During brushing, the hand applies a certain amount of force to the teeth, with the point of force being the middle or slightly above the middle of the toothbrush. This results in frequent use of the bristles in the middle or slightly above the middle area, while the bristles in the lower middle area are used less frequently. This arrangement ensures that when the bristles in the middle area move, they will move the bristles in the lower area, thereby increasing the cleaning effect.

[0046] like Figure 3 As shown, the second bristle implantation part 2 is distributed on the outer periphery of the front of the toothbrush head and is set independently of the first bristle implantation part 1.

[0047] Specifically, the second bristle implantation section 2 includes multiple independent sub-bristle implantation sections 10, with adjacent sub-bristle implantation sections 10 connected by connecting ribs 14. This arrangement increases the pull-out force of the outer bristles. The connecting ribs 14 connect the multiple sub-bristle implantation sections 10 into a single unit, forming the second bristle implantation section 2. The connecting ribs 14 also serve as a flow channel for injection molding. The length of the connecting ribs 14 is greater than or equal to 0.5 mm to ensure elasticity. The sub-bristle implantation sections 10 can have the same or different shapes, including but not limited to triangular, quadrilateral, pentagonal, or more polygonal shapes. The second bristle implantation section 2 and the bristle implantation section corresponding to the lower bristle implantation area 4 form a ring, surrounding the central bristle implantation area 3. The bristle implantation sections forming the ring are centrally symmetrical about the central bristle implantation area 3 and axially symmetrical about the central axis of the central bristle implantation area 3.

[0048] In one feasible implementation of this embodiment, the second hair-planting section 2 includes 13 sub-hair-planting sections 10. The upper sub-hair-planting sections 10 and the corresponding hair-planting sections of the lower hair-planting area 4 are symmetrically arranged vertically, forming a pentagon. One side of the pentagon closest to the central hair-planting area 3 is opposite to the central hair-planting area 3. Two sub-hair-planting sections 10 adjacent to the upper sub-hair-planting section 10 are quadrilaterals, and similarly, two sub-hair-planting sections 10 adjacent to the hair-planting section corresponding to the lower hair-planting area 4 are quadrilaterals. The remaining sub-hair-planting sections 10 are pentagons, with one corner of the pentagon closest to the central hair-planting area 3 opposite to the central hair-planting area 3.

[0049] Furthermore, such as Figure 4 As shown, the bristle-planting section includes a bristle-retaining ring 11, which is used to constrain the bristle bundles so that the bristle bundles are held in the toothbrush head. A retaining ring step 12 is also provided on the bristle-planting retaining ring 11 to improve the manufacturability of the bristle-planting retaining ring 11 in injection molding of soft plastic while reducing the precision of the mold components.

[0050] The bristle retaining ring 11 forms a bristle implantation cavity 13. The sidewalls of the bristle implantation cavity 13 are inclined outward from top to bottom, such that the cross-section of the bristle implantation cavity 13 at the upper position is smaller than the cross-section at the lower position. This design facilitates the demolding of the bristle implantation part from the mold, while simultaneously providing a more secure and stable gripping effect on the implanted bristles.

[0051] Furthermore, such as Figure 5 As shown, the retaining ring of the sub-hair implantation section 10 located at the upper position of the second hair implantation section 2 is higher than the retaining ring of other hair implantation sections. This facilitates the beginning and end of the hair implantation section during the automatic hair implantation process, thereby improving production efficiency.

[0052] Brush bristles are provided on the bristle-planting section, with the tips of the bristles extending beyond the soft rubber, and the bristle tips of each bristle-planting area cluster together to form bristle clumps.

[0053] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An electric toothbrush head, characterized in that, include: Soft rubber; The bristle implantation section is at least partially disposed in the soft rubber, and the bristle implantation section includes a first bristle implantation section and a second bristle implantation section; wherein, the coverage area of ​​the first bristle implantation section includes a central bristle implantation area and a lower bristle implantation area, the central bristle implantation area is distributed in the middle of the front of the toothbrush head, the lower bristle implantation area is distributed in the lower position of the toothbrush head, and the bristle implantation section corresponding to the central bristle implantation area and the bristle implantation section corresponding to the lower bristle implantation area are connected; the second bristle implantation section is distributed on the periphery of the front of the toothbrush head and is disposed independently of the first bristle implantation section. The bristles are provided on the bristle-planting section, with the tips extending beyond the soft rubber. The bristle tips in each bristle-planting area gather to form bristle clumps.

2. The electric toothbrush head according to claim 1, characterized in that, The hair implantation area corresponding to the central hair implantation area and the hair implantation area corresponding to the lower hair implantation area are connected by connecting ribs.

3. The electric toothbrush head according to claim 1, characterized in that, The second hair implantation section includes multiple independent sub-hair implantation sections, and adjacent sub-hair implantation sections are connected by connecting ribs.

4. The electric toothbrush head according to claim 1, characterized in that, The central hair-planting area includes a first sub-region, a second sub-region, and a third sub-region connected in sequence. Each of the first, second, and third sub-regions includes a central cluster area and a surrounding cluster area. The central cluster area is located at the center of the corresponding area, and the surrounding cluster areas are arranged around the central cluster area.

5. The electric toothbrush head according to claim 4, characterized in that, The surrounding cluster region includes multiple independent sub-surrounding cluster regions, which are arranged rotationally symmetrically with respect to the central cluster region.

6. The electric toothbrush head according to claim 3, characterized in that, The shape of the sub-hair implantation portion includes triangular, quadrilateral, pentagonal, or more polygonal shapes.

7. The electric toothbrush head according to claim 1, characterized in that, The second hair-planting part and the hair-planting part corresponding to the lower hair-planting area form a ring, which surrounds the central hair-planting area. The hair-planting parts forming the ring are arranged in a centrally symmetrical manner with the central hair-planting area as the center, and are also arranged in an axially symmetrical manner with the central axis of the central hair-planting area as the axis.

8. The electric toothbrush head according to claim 1, characterized in that, The hair implantation section includes a hair implantation retaining ring, and the hair implantation retaining ring is provided with a retaining ring step.

9. The electric toothbrush head according to claim 1, characterized in that, The hair implantation section forms a hair implantation cavity, and the sidewall of the hair implantation cavity slopes outward from top to bottom, such that the cross-section of the hair implantation cavity at the upper position is smaller than the cross-section at the lower position.

10. The electric toothbrush head according to claim 8, characterized in that, The retaining ring corresponding to the sub-hair implantation part on the upper part of the second hair implantation part is higher than the retaining ring of other hair implantation parts.

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