Toothbrush head and oral care device

Abstract

The utility model provides a toothbrush head and an oral care device. The toothbrush head comprises a plurality of groups of bristle components, a soft rubber part and a hard brush handle, the bristle assembly comprises bristle bundles and a fixing ring, the bristle bundles comprise free ends and fixed ends, the bristle bundles are arranged in the fixing ring in a penetrating mode, the fixed ends are exposed to the side, away from the free ends, of the fixing ring, the fixed end of any bristle bundle is integrally formed, and the fixed ends of the adjacent bristle bundles are arranged at intervals; the fixing rings are arranged at intervals and connected with the hard brush handle through a soft rubber piece formed through injection molding. According to the toothbrush head, the bristle bundles of the toothbrush head form the bristle assembly through the fixing rings, the bristle assembly is arranged at intervals through the fixing rings, the bristle assembly and the hard toothbrush handle are subjected to injection molding to form the soft rubber part, connection is achieved, and when a motor of an electric toothbrush drives bristles to vibrate through the toothbrush handle and the soft rubber part, the bristle assembly serves as an independent unit, and deformation of soft rubber is combined. The flexible glue has relatively high swing degree of freedom, and when the flexible glue is in contact with teeth, gingiva or the inner wall of an oral cavity, the flexible glue is soft in touch, so that the comfort level can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral care devices, in particular to a toothbrush head and an oral care device. Background Art

[0002] Oral care devices, such as toothbrushes, are indispensable items in people's lives. In addition to traditional manual toothbrushes, with the improvement of people's living standards, more and more families are equipped with electric toothbrushes. Traditional manual toothbrushes have a simple structure and are often composed of an integrated toothbrush head and a toothbrush handle. The toothbrush head is provided with bristles, which are set on a connecting piece by a hot-melt method, and then the connecting piece is injection-molded with other parts of the toothbrush head or the toothbrush handle into one body. This traditional way of setting the toothbrush head, although simple and easy to implement, all bristle bundles are driven to vibrate by the welded connecting piece, and the swing freedom of the bristle bundles is relatively low.

[0003] These may not be big problems in traditional manual toothbrushes. However, in electric toothbrushes that vibrate at a very high frequency, this has become a significant problem. The structure of teeth is relatively special and needs to be connected to soft gums. Obviously, the gums do not require strong vibrations. However, when the bristles are set in the aforementioned way, both the squeezed bristle bundles and the unsqueezed bristle bundles will be driven to vibrate by the connecting piece with the same amplitude. For example, as disclosed in Patent CN112438480A, the bristles of the toothbrush head are welded into a whole piece on one side of the brush handle mounting part to form a welded connecting piece, which is a typical way of setting the whole-piece bristles. It is difficult to change the angle and vibration force of the bristle bundles according to the angle of the toothbrush relative to the teeth. For example, when the bristles are pressed on the gums, the vibration force is still relatively large, and the comfort needs to be improved. Summary of the Utility Model

[0004] Based on this, it is necessary to provide a toothbrush head and an oral care device for at least one of the above-mentioned problems.

[0005] In a first aspect, the present application provides a toothbrush head, including a plurality of groups of bristle assemblies, a soft rubber part, and a hard toothbrush handle;

[0006] The bristle assembly includes a bristle bundle and a fixing ring. The bristle bundle includes a free end and a fixed end. The bristle bundle is inserted into the fixing ring, and the fixed end is exposed on the side of the fixing ring away from the free end. The fixed ends of any bristle bundle are integrally formed, and the fixed ends of adjacent bristle bundles are arranged at intervals;

[0007] The fixing rings are arranged at intervals and are connected to the hard toothbrush handle through the soft rubber part formed by injection molding.

[0008] In certain implementations of the first aspect, the fixed end and the free end respectively protrude from the fixed ring, and the height by which the free end protrudes from the fixed ring is greater than the height by which the fixed end protrudes from the fixed ring.

[0009] Combining the first aspect and the above implementations, in certain implementations of the first aspect, the soft rubber member covers at least a part of the fixed end and the fixed ring.

[0010] Combining the first aspect and the above implementations, in certain implementations of the first aspect, a raised anchor point is provided at the top end of the rigid brush handle, and the soft rubber member wraps around the top end of the rigid brush handle.

[0011] Combining the first aspect and the above implementations, in certain implementations of the first aspect, the cross-sectional shape of the fixed ring is polygonal or circular.

[0012] Combining the first aspect and the above implementations, in certain implementations of the first aspect, the brush handle includes an integrally formed connecting end and a transition end, the soft rubber member is fixed to the connecting end, and in the direction from the connecting end to the transition end, the brush tuft includes a first brush zone, a second brush zone, and a third brush zone arranged in sequence. The first brush zone and the third brush zone are respectively arranged at both ends of the second brush zone along the length direction of the brush handle, and the first brush zone and the second brush zone respectively include two or more groups of the brush assemblies.

[0013] Combining the first aspect and the above implementations, in certain implementations of the first aspect, the free ends of the first brush zone and the third brush zone respectively protrude from the free end of the second brush zone, and the end faces of the free ends of the first brush zone and the third brush zone are both inclined towards the second brush zone.

[0014] Combining the first aspect and the above implementations, in certain implementations of the first aspect, the height by which the end of the brush tuft in the first brush zone protrudes from the fixed ring is greater than the height by which the end of the brush tuft in the third brush zone protrudes from the fixed ring; the height by which the end of the brush tuft in the third brush zone protrudes from the fixed ring is greater than the height by which the end of the brush tuft in the second brush zone protrudes from the fixed ring.

[0015] Combined with the first aspect and the above implementation manners, in some implementation manners of the first aspect, the toothbrush head includes a connecting member, the connecting member includes a soft snap member, a hard snap member and a connecting member body, a connecting hole is formed in the transition end, a shaft hole for inserting a motor shaft is formed in the connecting member body, the hard snap member and the soft snap member are respectively fixedly connected to the connecting member body, and at least part of the connecting member body, the hard snap member and the soft snap member are inserted and fixed in the connecting hole, and the soft snap member protrudes into the shaft hole and is used for abutting against the motor shaft.

[0016] In a second aspect, the present application provides an oral care device, including a vibration assembly and a toothbrush head as described in any one of the first aspects of the present application, and the vibration assembly is detachably connected to the brush handle.

[0017] The technical solutions provided in the embodiments of the present utility model bring the following beneficial technical effects:

[0018] For the toothbrush head provided by the present utility model, its bristle bundles form a bristle assembly through a fixing ring, and are then arranged at intervals through the fixing ring, and are integrally formed with a hard brush handle by injection molding to form a soft rubber part, so as to achieve connection. When the motor of the electric toothbrush drives the bristles to vibrate through the brush handle and the soft rubber part, the bristle assembly, as an independent unit, combined with the deformation of the soft rubber, has a relatively high swing freedom degree, and thus can adapt to the angle change of the toothbrush relative to the teeth. When the soft rubber contacts the teeth, gums or the inner wall of the oral cavity, the touch is relatively soft, which can improve the comfort.

[0019] The additional aspects and advantages of the present application will be given in the subsequent parts, and will be understood in detail from the subsequent description, or will be learned through the specific implementation of the present utility model. Description of the Drawings

[0020] Figure 1 is a three-dimensional structural schematic diagram of a toothbrush head in an embodiment of the present utility model;

[0021] Figure 2 is an exploded schematic diagram of a toothbrush head in an embodiment of the present utility model;

[0022] Figure 3 is an exploded schematic diagram of a toothbrush head in another embodiment of the present utility model;

[0023] Figure 4 is a planar structural schematic diagram of a toothbrush head in an embodiment of the present utility model;

[0024] Figure 5 is Figure 4 a sectional structural schematic diagram of;

[0025] Figure 6 is a planar schematic diagram of the exploded state of a toothbrush head in an embodiment of the present utility model.

[0026] Description of the reference numerals:

[0027] 100 - Bristle assembly, 200 - Soft rubber part, 300 - Hard brush handle, 400 - Connecting piece;

[0028] 110 - Bristle bundle, 120 - Fixed ring, 111 - Free end, 112 - Fixed end;

[0029] 310 - Transition end, 320 - Connection end, 301 - Protruding anchor point, 302 - Connection hole;

[0030] 101 - First bristle area, 102 - Second bristle area, 103 - Third bristle area;

[0031] 410 - Soft clamping part, 420 - Hard clamping part, 430 - Connecting piece body, 431 - Axial hole. Detailed implementation mode

[0032] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The possible embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments already described in the drawings herein. The embodiments described by referring to the drawings are exemplary and are used to make the understanding of the disclosure content of the present invention more thorough and comprehensive, and cannot be construed as a limitation to the present invention. In addition, if the detailed description of the known technology is not necessary for the features shown of the present invention, these technical details may be omitted.

[0033] Those skilled in the relevant art can understand that unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of those of ordinary skill in the art to which the present invention belongs. It should also be understood that those terms defined in a general dictionary, such as those, should be understood as having a meaning consistent with the meaning in the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as here.

[0034] Those skilled in the art of the present technology can understand that unless specifically stated, the singular forms "a", "an", "the" and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present application means the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that the term "and / or" used herein includes all or any unit and all combinations of one or more related listed items.

[0035] The technical solution of the present utility model and how this technical solution solves the above technical problems will be described in detail below with specific embodiments.

[0036] In a first aspect, the present application provides a toothbrush head, as Figures 1 to 3 shown, including a plurality of groups of bristle assemblies 100, soft rubber parts 200, and a hard brush handle 300. The bristle assemblies 100 are connected to the hard brush handle 300 through the soft rubber parts 200, and the hard brush handle 300 can also be connected to other parts of the toothbrush, such as a vibration assembly capable of generating high-frequency vibration.

[0037] Among them, in combination with Figure 2 and Figure 3 , the bristle assembly 100 includes bristle bundles 110 and fixing rings 120. The bristle bundles 110 include free ends 111 and fixing ends 112. The bristle bundles 110 are inserted into the fixing rings 120, and the fixing ends 112 are exposed on the side of the fixing ring 120 away from the free ends 111. The fixing ends 112 of any bristle bundle 110 are integrally formed, and the fixing ends 112 of adjacent bristle bundles 110 are arranged at intervals. The free ends 111 of the bristle bundles 110 are the ends that can contact the teeth and perform brushing operations. The bristle bundles 110 may include multiple bristles, and these bristles are melted together at the fixing ends 112 and inserted into the fixing rings 120. The fixing ends 112 are not completely received in the fixing rings 120, and part of them is exposed outside the fixing rings 120 to facilitate hot stamping operations, and the fixing ends 112 are exposed on the side of the fixing ring 120 away from the free ends 111, rather than on the side close to the free ends 111. Specifically, the cross-sectional shape of the fixing ring 120 can be polygonal or circular, and the specific shape is a columnar shape with a cross-sectional shape of polygonal or circular.

[0038] The fixing rings 120 are arranged at intervals and connected to the hard brush handle 300 through the soft rubber parts 200 formed by injection molding. The bristle assemblies 100 are arranged on the hard brush handle 300, or there is a small gap between the bristle assemblies 100 and the hard brush handle 300, and then encapsulated by injection molding with the soft rubber parts 200. The hard brush handle 300 can directly transmit vibration to the bristle bundles 110 on the bristle assemblies 100, and the bristle assemblies 100 encapsulated by injection molding with the soft rubber parts 200 also have a relatively high swing freedom and a soft touch.

[0039] The toothbrush head provided by the present utility model has a bristle bundle 110 which forms a bristle assembly 100 through a fixing ring 120. The bristle assemblies 100 are arranged at intervals on a rigid brush handle 300 through the fixing ring 120 and are connected by an injection-molded soft rubber part 200. When the motor of the electric toothbrush drives the bristles to vibrate through the brush handle and the soft rubber part 200, the bristle assembly 100, as an independent unit, combined with the deformation of the soft rubber, has a relatively high degree of freedom of swing, so it can adapt to the angular change of the toothbrush relative to the teeth. When the soft rubber contacts the teeth, gums or the inner wall of the oral cavity, the touch is relatively soft, which can improve the comfort of brushing teeth.

[0040] Optionally, in some implementation manners of the first aspect embodiment, as Figure 2 and Figure 3 shown, the fixed end 112 and the free end 111 respectively protrude from the fixing ring 120, and the height of the free end 111 protruding from the fixing ring 120 is greater than the height of the fixed end 112 protruding from the fixing ring 120. In the bristle bundle 110 of the bristle assembly 100 of the present application, the bottom end is not received in the fixing ring 120, but the fixing ring 120 is threaded through the bristle bundle 110, and both ends of the bristle bundle 110 are exposed from the fixing ring 120. Among them, the exposed part of the fixed end 112 of the bristle bundle 110 is less, while the exposed part of the free end 111 of the bristle bundle 110 is more. With the structure in this implementation manner, the bristle bundle 110 can be directly connected to the rigid brush handle 300.

[0041] Optionally, in some other implementation manners of the first aspect embodiment, as Figure 2 and Figure 4 shown, the soft rubber part 200 covers at least a part of the fixed end 112 and the fixing ring 120. A part of the fixed end 112 of the bristle bundle 110 is encapsulated in the soft rubber part 200, a part of the fixing ring 120 is encapsulated in the soft rubber part 200, and the other part of the fixed end 112 is exposed on the side of the fixing ring 120 close to the free end 111. Of course, in some other implementation manners, the fixing ring 120 can be completely encapsulated in the soft rubber part 200, that is, both the fixed end 112 and the fixing ring 120 are encapsulated in the soft rubber part 200.

[0042] Optionally, combining the first aspect embodiment and the above implementation manners, in some other implementation manners of the first aspect embodiment, referring to Figure 2 and Figure 6 , a convex anchor point 301 is provided at the top end of the rigid brush handle 300, and the soft rubber part 200 wraps the top end of the rigid brush handle 300. By providing a convex anchor point 301 at the top end of the rigid brush handle 300 and then ensuring that the soft rubber part 200 wraps the top end of the rigid brush handle 300 after injection molding and wraps the convex anchor point 301 therein, it can be used to improve the connection firmness between the soft rubber part 200 and the rigid brush handle 300 and prevent the soft rubber part 200 from debonding from the rigid brush handle 300.

[0043] Optionally, in combination with the embodiments of the first aspect and the above implementation manners, in some further implementation manners of the embodiments of the first aspect, such as Figures 2 to 6 As shown, the hard brush handle 300 includes an integrally formed connecting end 320 and a transition end 310. The soft rubber member 200 is fixed to the connecting end 320, and the protruding anchor point 301 is located at the connecting end 320. In the direction from the connecting end 320 to the transition end 310, the bristle bundle 110 includes a first bristle area 101, a second bristle area 102, and a third bristle area 103 arranged in sequence. The first bristle area 101 and the third bristle area 103 are respectively arranged at both ends of the second bristle area 102 along the length direction of the brush handle. The first bristle area 101 and the second bristle area 102 respectively include more than two groups of bristle assemblies 100. In the implementation manner of the present application, the soft rubber member 200 wraps the entire connecting end 320, that is, in the part where the connecting end 320 of the hard brush handle 300 is located, the outer surface of the connecting end 320 is not exposed, thereby avoiding discomfort caused by the accidental impact of the connecting end 320 of the hard brush handle 300 on the gums or teeth during the user's brushing process.

[0044] Specifically, in combination with the above implementation manners, in an optional implementation manner, such as Figure 5 and Figure 6 As shown, the free ends 111 of the bristle bundles 110 in the first bristle area 101 and the third bristle area 103 respectively protrude from the free end 111 of the bristle bundle 110 in the second bristle area 102, and the end faces of the free ends 111 of the bristle bundles 110 in the first bristle area 101 and the third bristle area 103 are both inclined towards the second bristle area 102. In this implementation manner, the free ends 111 of the bristle bundles 110 on the toothbrush head, that is, the end used for brushing operations, do not have the same height, but are in a state where the two ends are slightly higher and the middle is flat and low, so that the brushing operation surface of the toothbrush head is curved, better fitting the teeth. When the toothbrush head vibrates at a high frequency, it can efficiently clean the teeth.

[0045] Specifically, in combination with the above implementation manners, in some other optional implementation manners, such as Figure 5 As shown, the height by which the end of the bristle bundle 110 in the first bristle area 101 protrudes from the fixing ring 120 is greater than the height by which the end of the bristle bundle 110 in the third bristle area 103 protrudes from the fixing ring 120; the height by which the end of the bristle bundle 110 in the third bristle area 103 protrudes from the fixing ring 120 is greater than the height by which the end of the bristle bundle 110 in the second bristle area 102 protrudes from the fixing ring 120. The first bristle area 101 is located at the top of the toothbrush head and has the highest height, which can more directly reach the innermost molar teeth in the oral cavity to achieve the cleaning of the molar teeth. At the same time, the third bristle area 103 has the second highest height, so that it will not penetrate too deeply into the tooth gaps of the external teeth while the first bristle area 101 contacts the inner teeth, ensuring that the toothbrush head has the largest possible cleaning range while improving the brushing comfort.

[0046] Optionally, in combination with the embodiments of the first aspect and the above implementation manners, in some other embodiments of the first aspect, as Figure 3 and Figure 6 shown, the toothbrush head includes a connecting member 400. The connecting member 400 includes a soft snap member 410, a hard snap member 420, and a connecting member body 430. A connecting hole 302 is formed at the transition end 310. The connecting member body 430 is provided with a shaft hole 431 for inserting a motor shaft. The hard snap member 420 and the soft snap member 410 are respectively fixedly connected to the connecting member body 430, and at least part of the connecting member body 430, the hard snap member 420, and the soft snap member 410 are inserted and fixed in the connecting hole 302. The soft snap member 410 protrudes into the shaft hole 431 and is used for abutting against the motor shaft. By providing the soft snap member 410 protruding into the shaft hole 431, during the process of inserting the motor shaft into the shaft hole 431, the soft snap member 410 can be deformed by extrusion to adapt to the motor shaft, increasing the contact area and ensuring the reliability of the connection between the motor shaft and the toothbrush head, thereby improving the reliability of the oral care device using the toothbrush head.

[0047] Based on the same technical concept, an embodiment of the second aspect of the present application provides an oral care device, as Figure 1 shown, including a vibration assembly (not shown in the figure) and a toothbrush head as described in any one of the first aspect of the present application. The vibration assembly is detachably connected to the brush handle.

[0048] For the oral care device provided by the present utility model, the bristle bundles 110 of the toothbrush head form a bristle assembly 100 through a fixing ring 120, and are then arranged at intervals through the fixing ring 120, and are injection-molded with a hard brush handle 300 to form a soft rubber member 200 to achieve connection. When the motor of the electric toothbrush drives the bristles to vibrate through the hard brush handle 300 and the soft rubber member 200, the bristle assembly 100, as an independent unit, combined with the deformation of the soft rubber member 200, has a relatively high swing freedom degree, so it can adapt to the angle change of the toothbrush relative to the teeth. When the soft rubber of the soft rubber member 200 contacts the teeth, gums or the inner wall of the oral cavity, the touch is relatively soft, which can improve the comfort.

[0049] Those skilled in the art of the present technology can understand that the terms "first" and "second" discussed in the present application are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0050] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0051] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0052] The above are only some embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A toothbrush head, characterized in that, It includes several groups of bristle assemblies, soft rubber parts and a hard brush handle; The bristle assembly includes a bristle bundle and a fixing ring. The bristle bundle includes a free end and a fixed end. The bristle bundle is inserted into the fixing ring, and the fixed end is exposed on the side of the fixing ring away from the free end. The fixed ends of any bristle bundle are integrally formed, and the fixed ends of adjacent bristle bundles are arranged at intervals; The fixing rings are arranged at intervals and connected to the hard brush handle through the soft rubber parts formed by injection molding.

2. The toothbrush head according to claim 1, characterized in that, The fixed end and the free end respectively protrude from the fixing ring, and the height of the free end protruding from the fixing ring is greater than the height of the fixed end protruding from the fixing ring.

3. The toothbrush head according to claim 1, characterized in that, The soft rubber part covers at least a part of the fixed end and the fixing ring.

4. The toothbrush head according to claim 1, characterized in that, A protruding anchor point is provided at the top of the hard brush handle, and the soft rubber part wraps the top of the hard brush handle.

5. The toothbrush head according to claim 1, characterized in that, The cross-sectional shape of the fixing ring is polygonal or circular.

6. The toothbrush head according to claim 1, characterized in that, The hard brush handle includes an integrally formed connecting end and a transition end. The soft rubber part is fixed to the connecting end. In the direction from the connecting end to the transition end, the bristle bundle includes a first bristle area, a second bristle area and a third bristle area arranged in sequence. The first bristle area and the third bristle area are respectively arranged at both ends of the second bristle area along the length direction of the brush handle, and the first bristle area and the second bristle area respectively include more than two groups of the bristle assemblies.

7. The toothbrush head according to claim 6, characterized in that The free ends of the first bristle area and the third bristle area respectively protrude from the free end of the second bristle area, and the end faces of the free ends of the first bristle area and the third bristle area are inclined towards the second bristle area.

8. The toothbrush head according to claim 6, characterized in that, The height of the end of the bristle bundle in the first bristle area protruding from the fixing ring is greater than the height of the end of the bristle bundle in the third bristle area protruding from the fixing ring; the height of the end of the bristle bundle in the third bristle area protruding from the fixing ring is greater than the height of the end of the bristle bundle in the second bristle area protruding from the fixing ring.

9. The toothbrush head according to claim 6, wherein The toothbrush head further includes a connecting piece. The connecting piece includes a soft clamping piece, a hard clamping piece and a connecting piece body. A connecting hole is provided in the transition end. A shaft hole for inserting a motor shaft is provided in the connecting piece body. The hard clamping piece and the soft clamping piece are respectively fixedly connected to the connecting piece body, and at least part of the connecting piece body, the hard clamping piece and the soft clamping piece are inserted and fixed in the connecting hole. The soft clamping piece protrudes into the shaft hole and is used to abut against the motor shaft.

10. An oral care device, characterized in that, It includes a vibration assembly and a toothbrush head described in any one of claims 1 to 9, and the vibration assembly is detachably connected to the brush handle.

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