Brush head and toothbrush with same

Abstract

The brush head comprises a body and bristles, the body is provided with a first side face and a second side face which are oppositely arranged, the thickness of the body is gradually reduced from the middle to the edge, the center of the first side face protrudes in the direction away from the second side face, and a plurality of bristle planting holes penetrating through the body are formed in the body; the bristles penetrate through the bristle planting holes and are fixed, and the fixed ends of the bristles are located on the second side face. According to the toothbrush head, the thickness of the body is gradually reduced from the middle to the edge, the center of the first side face protrudes in the direction away from the second side face, on one hand, the purpose that the skeleton strength of the toothbrush head is guaranteed while the thickness of the toothbrush head is reduced is achieved, and therefore when the fixed ends of the bristles located on the second side face are melted and ironed, the toothbrush head is not prone to falling off. The body has sufficient framework strength, and the reject ratio and the manufacturing cost are reduced. On the other hand, compared with the bristles implanted in the middle of the body, the bristles implanted in the edge of the body have higher degree of freedom, and the cleaning capacity is improved.

Description

Technical Field

[0001] The present application relates to the technical field of oral cleaning, and in particular to a brush head and a toothbrush having the same. Background Art

[0002] In order to improve the comfort of toothbrushes and respond to the world's environmental protection needs, the development direction of toothbrushes tends to use ultra-thin technology to process the brush head.

[0003] However, in existing technologies, the relatively thin frame of ultra-thin brush heads reduces their strength to a certain extent. This can easily cause the brush head frame to deform and warp during the melting and scalding of the bristles, increasing product defect rates and manufacturing costs. Furthermore, in actual use, the free ends of the bristles of existing ultra-thin brush heads have limited freedom of movement, resulting in insufficient oral cleaning performance. Utility Model Content

[0004] In response to the above technical problems, this application proposes a brush head and a toothbrush having the same, aiming to solve the problem that the brush head obtained by applying ultra-thin process technology is prone to deformation and warping due to insufficient skeleton strength when the bristles are melted and ironed, as well as the problem of insufficient cleaning power.

[0005] To achieve the above-mentioned object, the present application provides a brush head, comprising a body and bristles, wherein the body has a first side surface and a second side surface disposed opposite to each other, the thickness of the body gradually decreases from the middle to the edge, the center of the first side surface bulges away from the second side surface, and the body is provided with a plurality of bristle planting holes penetrating the body;

[0006] The bristles pass through the plurality of bristle planting holes and are fixed, and the fixed ends of the bristles are located on the second side surface.

[0007] Optionally, the first side surface is a curved surface, and the second side surface is a flat surface.

[0008] Optionally, the body further includes a covering layer, and the covering layer covers the second side surface and the fixed ends of the bristles.

[0009] Optionally, the multiple hair transplantation holes include a first hair transplantation hole and a second hair transplantation hole, the first hair transplantation hole is opened in the middle area of ​​the main body, the second hair transplantation hole is opened in the edge area of ​​the main body, and the aperture of at least a part of the first hair transplantation hole is larger than that of the second hair transplantation hole.

[0010] Optionally, there are multiple first hair transplantation holes, and the apertures of the multiple first hair transplantation holes gradually decrease from the center of the middle area to the edge area.

[0011] Optionally, the apertures of the plurality of second hair implantation pores are equal.

[0012] Optionally, the total hair implantation area of ​​the first hair implantation holes is 1.5 to 2.5 times the total hair implantation area of ​​the second hair implantation holes.

[0013] Optionally, the fixed end of the bristle is in the shape of a whole piece.

[0014] The present application also provides a toothbrush, comprising a brush rod and the brush head as described above, wherein the brush head is connected to the brush rod.

[0015] Optionally, the brush head and the brush rod are integrally formed, or a positioning portion is provided at one end of the brush rod, and the brush head is arranged in the positioning portion.

[0016] In this application, the thickness of the body gradually decreases from the middle to the edge, and the center of the first side surface bulges away from the second side surface. This achieves the goal of reducing the thickness of the toothbrush head while ensuring the skeleton strength of the brush head. Furthermore, when the fixed ends of the bristles located on the second side surface are melted, the body has sufficient skeleton strength, reducing the defect rate and manufacturing costs. Furthermore, compared with bristles embedded in the middle of the body, the bristles embedded at the edge of the body have a greater degree of freedom, thereby improving cleaning power. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a brush head provided in one embodiment of the present application Figure 1 .

[0019] Figure 2 A schematic diagram of the three-dimensional structure of a brush head provided in one embodiment of the present application Figure 2 .

[0020] Figure 3 A left-side structural diagram of a brush head provided in one embodiment of the present application Figure 1 .

[0021] Figure 4 This is a schematic top-view cross-sectional diagram of a brush head provided in one embodiment of the present application.

[0022] Figure 5 A left-side structural diagram of a brush head provided in one embodiment of the present application Figure 2 .

[0023] Figure 6 A schematic diagram of the three-dimensional structure of a toothbrush provided in one embodiment of the present application Figure 1 .

[0024] Figure 7 A schematic diagram of the three-dimensional structure of a toothbrush provided in one embodiment of the present application Figure 2 .

[0025] Description of reference numerals:

[0026] 1. Brush head; 12. Body; 121. First side; 122. Second side; 123. Hair transplantation hole; 1231. First hair transplantation hole; 1232. Second hair transplantation hole; 124. Covering layer; 13. Bristles;

[0027] 2. Toothbrush

[0028] 3. Brush rod; 31. Positioning part. DETAILED DESCRIPTION

[0029] The following describes the implementation of the present application through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0030] In the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the present application. It should be understood that other embodiments may be used, and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present application. The following detailed description should not be considered limiting, and the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present application.

[0031] Although the terms "first", "second", etc. are used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0032] Furthermore, as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Thus, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C". Exceptions to this definition occur only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0033] First embodiment

[0034] Figure 1 and Figure 2 is a schematic diagram of the three-dimensional structure of the brush head according to the first embodiment of the present application, as shown in FIG. Figure 1 and Figure 2 As shown, as one embodiment, the brush head 1 includes a body 12 and bristles 13. The body 12 has a first side surface 121 and a second side surface 122 that are oppositely arranged. The thickness of the body 12 gradually decreases from the middle to the edge, and the center of the first side surface 121 bulges away from the second side surface 122.

[0035] The first side 121 is the bristle-planting side of the body 12, and the second side 122 is the bristle-melting side of the body 12. The thickness of the body 12 is thickest in the middle and gradually decreases towards the edges. In this way, the center of the first side 121 bulges away from the second side 122. While the thickness of the edge area of ​​the brush head 1 has sufficient skeleton strength, the local thickening of the middle area can effectively improve the skeleton strength of the body 12 at the center.

[0036] The body 12 is provided with a plurality of bristle implantation holes 123 extending therethrough. The fixed ends of the bristles 13 pass through the plurality of bristle implantation holes 123 from the first side 121 and are fixed thereto, with the fixed ends of the bristles 13 located on the second side 122. When the fixed ends of the bristles 13 located on the second side 122 are melted, the body 12 possesses sufficient skeletal strength, effectively preventing deformation and warping of the body 12 due to heat, thereby reducing defective rates and manufacturing costs. Preferably, in this application, a copper-free bristle implantation process is selected as the melt-scalding process.

[0037] In addition, the bristles 13 implanted in the implanting holes 123 located in the middle of the main body 12 have a thicker thickness in the corresponding area and a high skeleton strength, which can better transmit vibrations. The bristles 13 implanted in the implanting holes 123 located at the edge of the main body 12 have a thinner thickness in the corresponding area. Under the premise that the length of the bristles 13 always remains consistent, the exposed part of the bristles 13 is longer, and has a larger swing space in actual use, that is, it has a greater degree of freedom, which can significantly improve the cleaning effect on the upper and lower gum parts of the oral cavity.

[0038] Furthermore, the raised first side surface 121 also has a hydrophobic effect during actual use. After the user finishes brushing his teeth, the water remaining in the middle of the main body 12 can flow out along the curvature of the first side surface 121, effectively reducing the accumulation of water and bacteria at the bottom end of the bristles 13, making it easier to keep clean and hygienic.

[0039] Please refer to Figure 3As one of the implementation methods, the first side surface 121 is a curved surface, and the second side surface 122 is a plane. In this way, under the premise that the second side surface 122 (the hair melting side) is a plane, only the first side surface 121 (the hair planting side) is made into a convex curved surface. This can achieve the purpose of improving the skeleton strength of the body 12 without increasing the overall thickness of the brush head, so that it is not easy to be deformed and warped by heat during the hair melting process.

[0040] Please refer to Figure 4 As one embodiment, the main body 12 further includes a covering layer 124 covering the second side surface 122 and the fixed end of the bristles 13. It can be understood that by providing the covering layer 124, it is possible to prevent the brush head 1 from directly colliding with the teeth during use, thereby affecting the user experience. In addition, by providing the covering layer 124, on the one hand, after the fixed end of the bristles 13 located on the second side surface 122 is melted, the covering layer 124 can be used to hide the melted bristles 13, so as to achieve the purpose of beautifying the second side surface 122. On the other hand, during long-term use, in order to prevent the bristles 13 from falling off from the second side surface 122, the covering layer 124 has the effect of locking the fixed end of the bristles 13 to the second side surface 122.

[0041] Please refer to Figure 1 or Figure 2 As one embodiment, the multiple bristle holes 123 include a first bristle hole 1231 and a second bristle hole 1232. The first bristle hole 1231 is opened in the middle area of ​​the main body 12, and the second bristle hole 1232 is opened in the edge area of ​​the main body 12. The aperture of at least a portion of the first bristle hole 1231 is larger than the aperture of the second bristle hole 1232. In other words, the aperture of the first bristle hole 1231 located in the middle area is larger than the aperture of the second bristle hole 1232 located in the edge area. In this case, compared with the second bristle hole 1232 opened in the edge area, at least a portion of the aperture of the first bristle hole 1231 opened in the middle area is larger than the second bristle hole 1232. In this way, under the premise of ensuring that the main body 12 has sufficient skeleton strength, more bristles 13 can be implanted in the middle area of ​​the main body 12 to achieve the effect of improving the cleaning power.

[0042] In one embodiment, there are multiple first hair-planting holes 1231, and the apertures of the multiple first hair-planting holes 1231 gradually decrease from the center of the middle area to the edge area. In the illustrated structure, the shape of the main body 12 is elliptical, and the first hair-planting holes 1231 correspond to the shape of the main body 12. The apertures of the first hair-planting holes 1231 gradually decrease from the center to the edge. The second hair-planting holes 1232 surround the first hair-planting holes 1231 and are opened in the edge area of ​​the main body 12.

[0043] Based on the fact that the thickness of the main body 12 is thickest at the center of the middle area and gradually decreases toward the edge area, it is not difficult to obtain that the skeleton strength of the main body 12 gradually decreases from the center of the middle area to the edge. Furthermore, by setting the aperture of multiple first hair implantation holes 1231 to gradually decrease from the center of the middle area to the edge area, the influence of the aperture size of the first hair implantation holes 1231 on the skeleton strength of the main body 12 can be effectively reduced.

[0044] As one of the embodiments, the apertures of the multiple second hair-planting holes 1232 are equal, so that the distribution of the bristles 13 in the edge area is more balanced. On the premise that the length of the bristles 13 remains consistent, the exposed part of the bristles 13 is longer and has a larger swing space in actual use, which can significantly improve the cleaning effect of the upper and lower gum parts.

[0045] In one embodiment, the total bristle area of ​​the first bristle pores 1231 is 1.5 to 2.5 times the total bristle area of ​​the second bristle pores 1232. This increases the number of contact points with the tooth surface for the first bristle pores 1231, allowing them to cover more tooth surfaces in a shorter period of time. This helps to more effectively remove food debris and plaque from the tooth surface, improving cleaning and brushing efficiency. The second bristle pores 1232 can make the edge of the brush head 1 softer and more flexible, allowing it to more easily adapt to the contours of the teeth and gums, reducing gum irritation.

[0046] Preferably, the total hair implantation area of ​​the first hair implantation holes 1231 is twice the total hair implantation area of ​​the second hair implantation holes 1232 .

[0047] Please refer to Figure 5 In one embodiment, the fixed ends of the bristles 13 are in a whole piece. In actual implementation, the melting mechanism melts the fixed ends of the bristles 13 located on the second side surface 122, thereby connecting the fixed ends of all the bristles 13 into a whole piece, thereby achieving a better fixing effect between the fixed ends of the bristles 13 and the second side surface 122.

[0048] In one embodiment, the inner cavity of the implanting hole 123 can be a tapered cone extending from the opening of the first side 121 to the opening of the second side 122. In this way, during the implanting process, the larger inlet diameter on the first side 121 can improve the efficiency of the implantation of the bristles 13, while the smaller outlet diameter on the second side 122 can improve the locking degree between the fixed end of the bristles 13 and the implanting hole 123, thereby reducing the probability of the bristles 13 falling off during long-term use.

[0049] Second embodiment

[0050] Please refer to Figure 6 and Figure 7The present application also provides a toothbrush comprising a brush rod 3 and the brush head 1 as described above, wherein the brush head 1 is connected to one end of the brush rod 3 .

[0051] Please refer to Figure 6 As one of the implementation methods, the brush head 1 and the brush rod 3 are integrally formed. In this way, the toothbrush as a whole is more sturdy and durable. Since there is no connection gap, on the one hand, the risk of the brush head 1 falling off or loosening due to long-term use is reduced. On the other hand, the accumulation of water and bacteria at the joints is reduced, making it easier to keep clean and hygienic.

[0052] Please refer to Figure 7 In one embodiment, a positioning portion 31 is provided at one end of the brush rod 3, and the brush head 1 is disposed within the positioning portion 31. The brush head 1 and the brush rod 3 are detachably connected. Thus, on the one hand, the detachable brush head 1 is convenient for the user to replace the bristles 13 after they are worn, without having to replace the entire toothbrush, which is economical and environmentally friendly. On the other hand, the detachable brush head 1 is convenient for the user to replace regularly, which helps maintain the hygiene of the toothbrush and the oral cavity.

[0053] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the appended claims.

Claims

1. A brush head, characterized in that: The brush comprises a body and bristles, wherein the body has a first side surface and a second side surface that are oppositely disposed, the thickness of the body gradually decreases from the middle to the edge, the center of the first side surface bulges away from the second side surface, and the body is provided with a plurality of bristle planting holes that pass through the body; The bristles pass through the plurality of bristle planting holes and are fixed, and the fixed ends of the bristles are located on the second side surface.

2. The brush head according to claim 1, characterized in that The first side surface is a curved surface, and the second side surface is a flat surface.

3. The brush head according to claim 1, characterized in that The body further includes a covering layer, which covers the second side surface and the fixed ends of the bristles.

4. The brush head according to claim 1, characterized in that The multiple hair transplantation holes include first hair transplantation holes and second hair transplantation holes. The first hair transplantation holes are opened in the middle area of ​​the main body, and the second hair transplantation holes are opened in the edge area of ​​the main body. The aperture of at least a part of the first hair transplantation holes is larger than that of the second hair transplantation holes.

5. The brush head according to claim 4, characterized in that There are a plurality of first hair implantation holes, and the apertures of the plurality of first hair implantation holes gradually decrease from the center of the middle area toward the edge area.

6. The brush head according to any one of claims 4 or 5, characterized in that: The apertures of the plurality of second hair implantation pores are equal.

7. The brush head according to claim 4, characterized in that The total hair transplantation area of ​​the first hair transplantation holes is 1.5 to 2.5 times the total hair transplantation area of ​​the second hair transplantation holes.

8. The brush head according to claim 1, characterized in that The fixed end of the bristle is in a whole piece shape.

9. A toothbrush, characterized in that: It comprises a brush rod and a brush head according to any one of claims 1 to 8, wherein the brush head is connected to the brush rod.

10. The toothbrush according to claim 9, characterized in that The brush head and the brush rod are integrally formed, or a positioning portion is provided at one end of the brush rod, and the brush head is arranged in the positioning portion.

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