Toothbrush with general bristle planting structure and processing method thereof

Abstract

The invention relates to the technical field of oral care tools, in particular to a toothbrush with a universal bristle planting structure and a processing method thereof.The toothbrush comprises a brush head frame, a bristle planting part arranged in the brush head frame and a cleaning part arranged on the bristle planting part, and the universal bristle planting structure is arranged on the bristle planting part; the universal bristle planting structure comprises a plurality of bristle planting holes and connecting sleeves correspondingly arranged in the bristle planting holes, a containing cavity used for containing bristle bundles is formed in any connecting sleeve, any bristle bundle is directly or indirectly fixed in the corresponding containing cavity, and any connecting sleeve is made of plastic. The connecting carrier between the bristle bundle and the bristle planting part is formed through the connecting sleeve, and the connecting sleeve is made of plastic, can be compatible with processing of different bristle planting technologies and can also be compatible with the bristle bundle planted in the bristle planting part made of different materials, so that the adaptability and flexibility of bristle planting processing of the toothbrush are greatly improved, and the toothbrush is more suitable for popularization and application. And innovative design and flexible design of the toothbrush head are facilitated, so that the processing requirements of different toothbrush products can be met.

Description

Technical Field

[0001] This invention relates to the technical field of oral care tools, and more particularly to a toothbrush with a universal bristle structure and its processing method. Background Technology

[0002] Currently, toothbrush bristle implantation processes are mainly divided into two categories: those with metal plates and those without. In these two independent processes, the material properties and hardness parameters of the implantation plate have a crucial impact on processing feasibility and finished product quality, requiring high precision.

[0003] Specifically, for bristle implantation with metal strips, metal strips are usually placed on the bristle implantation plate to fix the bristles. If the implantation plate is too hard, the metal strips cannot be embedded in it. If the implantation plate is too soft, it is difficult to form a strong friction between the metal strips and the implantation plate to keep them fixed, and the metal strips are easy to fall off, causing the toothbrush to shed bristles. For bristle implantation without metal strips, the tail of the bristle bundle usually needs to be melted to fuse with the contact surface in the implantation plate and then cooled and fixed. If the implantation plate is too soft, the molten part of the bristle bundle has poor compatibility with the implantation plate, reducing the fixing strength of the bristle bundle and making it easy for the bristles to fall off.

[0004] The two aforementioned tufting processes have high requirements for the material and hardness of the tufting board, which limits the production design, material selection, and tufting processing of the tufting board. This is not conducive to the flexible design and innovation of toothbrush products in terms of structure and function, and makes it difficult to meet the market's demand for personalized, high-performance toothbrush products.

[0005] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0006] This invention addresses the problem that existing toothbrush bristle implantation processes, such as those with and without copper sheets, are typically configured independently. Furthermore, both processes place high demands on the material and hardness of the bristle implantation plate, limiting the design, material selection, and processing of the plate. This hinders flexible design and innovation in the structure and functionality of toothbrush products, making it difficult to meet market demands for personalized, high-performance toothbrush products. The invention proposes a toothbrush with a universal bristle implantation structure and its processing method.

[0007] The technical solution adopted by this invention to solve its technical problem is: A toothbrush with a universal bristle implantation structure includes a brush head frame, a bristle implantation section disposed in the brush head frame, and a cleaning section disposed on the bristle implantation section. The cleaning section includes multiple bristle bundles, and the bristle implantation section is provided with a universal bristle implantation structure for connecting the bristle bundles. The universal bristle implantation structure includes multiple bristle implantation holes disposed in the bristle implantation section and corresponding to the bristle bundles, and connecting sleeves corresponding to each bristle implantation hole. Each connecting sleeve is provided with a receiving cavity for accommodating the bristle bundles, and each bristle bundle is directly or indirectly fixed in the corresponding receiving cavity. Each connecting sleeve is made of plastic.

[0008] As described above, a toothbrush with a universal bristle implantation structure uses a connecting sleeve to heat-melt the bristle bundles in the implantation section.

[0009] As described above, in a toothbrush with a universal bristle implantation structure, any one of the bristle bundles is embedded and fixed on the connecting sleeve by a metal connector, and both ends of the metal connector are embedded in the connecting sleeve, so that the bristle bundle is fixed on the bristle implantation part; the hardness of the metal connector is greater than the hardness of the connecting sleeve.

[0010] In the toothbrush with a universal bristle structure as described above, the wall thickness W of the connecting sleeve is 0.2mm to 0.4mm.

[0011] As described above, a toothbrush with a universal bristle implantation structure has a bristle implantation portion protruding from the brush head frame, such that each bristle bundle diverges to both sides along the central axis L of the bristle implantation portion; the bristle implantation portion undergoes concave elastic deformation relative to the brush head frame under force, such that each bristle bundle converges towards the central axis L of the bristle implantation portion.

[0012] A toothbrush with a universal bristle structure as described above, wherein the bristle portion is made of a soft material capable of elastic deformation, including at least one of TPE, TPU, and silicone, and the Shore hardness of the bristle portion is greater than 90A.

[0013] As described above, a toothbrush with a universal bristle structure has bristle sections made of a rigid material capable of elastic deformation, wherein the rigid material includes at least one of a metal material and a plastic material.

[0014] As described above, a toothbrush with a universal bristle structure is provided in the brush head frame, and a partition is provided on one side of the bristle-embedded part. The partition, the brush head frame and the bristle-embedded part enclose and form a hollow cavity.

[0015] As described above, a toothbrush with a universal bristle structure is provided in the brush head frame, wherein a wrapping part is provided on one side of the partition, and the partition is located between the hollow cavity and the wrapping part.

[0016] The present invention also provides a method for manufacturing a toothbrush, the method comprising at least the following steps: The hair-planting part is manufactured by integral molding, wherein the hair-planting part is provided with multiple hair-planting holes; Insert the connecting sleeve into the corresponding hair-implanting hole; The bristle bundles are inserted into the connecting sleeves, and the connecting sleeves are heated and melted to fix the bristle bundles; or, metal connectors are assembled at the root of the bristle bundles and inserted into the connecting sleeves.

[0017] Compared with the prior art, the beneficial effects of the present invention are: By inserting a connecting sleeve into the bristle implantation hole, a universal bristle implantation structure is formed in the bristle implantation part of the brush head. The connecting sleeve forms a connecting carrier between the bristle bundle and the bristle implantation part. The connecting sleeve is made of plastic, which is compatible with different bristle implantation processes and can also accommodate bristle implantation parts made of different materials. This greatly improves the adaptability and flexibility of toothbrush bristle implantation processing, relaxes the processing requirements for the bristle implantation part, and is conducive to the innovative and flexible design of toothbrush heads, thereby meeting the processing needs of different toothbrush products.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the brush head structure of the toothbrush of the present invention. Figure 1 (Hidden cleaning department); Figure 2 For the present invention Figure 1 Enlarged part A Figure 1 (No metal connectors); Figure 3 This is a cross-sectional view of the brush head of an embodiment of the toothbrush of the present invention; Figure 4 For the present invention Figure 1 Enlarged part A Figure 2 (With metal connectors); Figure 5 This is a schematic diagram showing a modified bristle-embedding portion of the toothbrush head according to the present invention. Figure 6 This is a cross-sectional view of the brush head according to another embodiment of the toothbrush of the present invention; Figure 7 for Figure 6 Enlarged view of part B in the image; Figure 8 This is a schematic diagram showing the distribution of the bristle bundles in the cleaning section of the present invention; Figure 9 for Figure 8 A magnified view of a portion of the image; Figure 10 This is a flowchart of the toothbrush manufacturing method of the present invention. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0023] Example 1: Figures 1 to 3 An optional embodiment of the toothbrush of the present invention is shown. The toothbrush includes a brush head frame 1, a bristle-embedding part 2 disposed in the brush head frame 1, and a cleaning part 3 disposed on the bristle-embedding part 2. The cleaning part 3 includes a plurality of bristle bundles 31. The bristle-embedding part 2 is provided with a universal bristle-embedding structure 21 for connecting the bristle bundles 31. The universal bristle-embedding structure 21 includes a plurality of bristle-embedding holes 211 disposed in the bristle-embedding part 2 and corresponding to the bristle bundles 31, and connecting sleeves 212 corresponding to each bristle-embedding hole 211. Each connecting sleeve 212 is provided with a receiving cavity 2121 for accommodating the bristle bundles 31. Each bristle bundle 31 is directly or indirectly fixed in the corresponding receiving cavity 2121. Each connecting sleeve 212 is made of plastic.

[0024] In this embodiment, the connecting sleeve 212 is preferably a hollow connecting sleeve 212. By inserting the connecting sleeve 212 into the bristle implantation hole 211, a universal bristle implantation structure 21 is formed in the bristle implantation part 2 of the brush head. In actual production and processing, a bristle implantation process with or without metal sheets can be flexibly selected to implant the bristle bundle 31 into the connecting sleeve 212. The connecting sleeve 212 forms a connecting carrier between the bristle bundle 31 and the bristle implantation part 2. Moreover, the connecting sleeve 212 is made of plastic, which can be compatible with different bristle implantation processes and can also be compatible with bristle implantation parts 2 of different materials to implant bristle bundles 31. This greatly improves the adaptability and flexibility of toothbrush bristle implantation processing, relaxes the processing requirements of the bristle implantation part 2, and is conducive to the innovative and flexible design of toothbrush heads, thereby meeting the processing needs of different toothbrush products.

[0025] In this embodiment, any of the connecting sleeves 212 is made of plastic, preferably a thermoplastic material. The connecting sleeves 212 are heat-melted to fix the bristle bundles 31 in the bristle implantation part 2. In actual processing, the bristle bundles 31 can be inserted into the connecting sleeves 212 by a bristle implantation machine. The connecting sleeves 212 and the root 312 of the bristle bundles 31 are heated and melted. At this time, the molten part of the connecting sleeves 212 and the molten part of the bristle bundles 31 flow and mix together. The mixed molten material tightly wraps the root 312 of the bristle bundles 31 and penetrates into the microstructure of the bristle surface. After cooling, the bristle bundles 31 can be directly fixed to the bristle implantation part 2. In this embodiment, the bristle bundle 31, combined with the connecting sleeve 212, employs a metal-free bristle implantation process. This significantly improves the connection strength and reliability between the bristle bundle 31 and the implanted part 2, effectively reducing the risk of loosening or falling off the bristle bundle 31 during long-term brushing, extending the toothbrush's lifespan. Furthermore, it eliminates the need for additional adhesives to fix the bristle bundle 31, simplifying the toothbrush implantation process and improving efficiency. Additionally, the melting and solidification process of thermoplastic materials has good repeatability. If rework occurs during production, the connection structure between the connecting sleeve 212 and the root 312 of the bristle bundle 31 can be reheated and melted, which helps improve the quality of the toothbrush product.

[0026] Example 2: Figure 4This embodiment shows another optional embodiment of the toothbrush provided in this second embodiment. The only difference between this second embodiment and the first embodiment is that any of the bristle bundles 31 are embedded and fixed on the connecting sleeve 212 by a metal connector 4, and both ends of the metal connector 4 are embedded in the connecting sleeve 212, so that the bristle bundles 31 are fixed on the bristle implantation part 2. In this embodiment, the metal connector 4 can be set as a copper sheet or a copper alloy sheet. During processing, the bristle bundles 31 with metal sheets can be directly inserted into the connecting sleeve 212 in conjunction with a corresponding bristle implantation machine to realize the bristle implantation step. Through the standardized design of the connecting sleeve 212, the production adaptability and flexibility of the universal bristle implantation structure 21 can be further improved, which greatly improves the flexibility and efficiency of toothbrush bristle implantation processing.

[0027] Furthermore, the hardness of the metal connector 4 is greater than that of the connecting sleeve 212, so as to ensure that the metal connector 4 can be embedded in the connecting sleeve 212 and generate strong friction with the connecting sleeve 212, thereby enhancing the connection strength and stability of the bristle bundle 31.

[0028] In this embodiment, under the metal sheet bristle implantation process, both ends of the metal connector 4 are embedded into the connecting sleeve 212 by a bristle implantation machine. The embedding length K of any end of the metal connector 4 in the connecting sleeve 212 can be set to 0.05mm. In order to ensure a tight connection between the metal connector 4 and the connecting sleeve 212, the wall thickness W of the connecting sleeve 212 is 0.2mm to 0.4mm, so as to provide sufficient embedding space for the metal connector 4, making it convenient for the metal connector 4 to be implanted into the bristle implantation hole 211, and at the same time improving the connection stability of the bristle bundle 31 and preventing the bristles from falling off.

[0029] Further optionally, the wall thickness W of the connecting sleeve 212 can be set to 0.2mm, 0.3mm or 0.4mm, etc.

[0030] Alternatively, the bristle bundle 31 can be connected to the metal connector 4 by means of adhesive bonding, hot melt material fusion reinforcement, or interference fit, etc., without specific limitations here.

[0031] Example 3: Based on the above embodiment one or embodiment two, Figure 5Another optional embodiment of the toothbrush is shown, wherein the bristle implant 2 protrudes from the brush head frame 1, causing each bristle bundle 31 to diverge laterally along the central axis L of the bristle implant 2; the bristle implant 2 undergoes inward elastic deformation relative to the brush head frame 1 under force, causing each bristle bundle 31 to converge toward the central axis L of the bristle implant 2; in this embodiment, the bristle implant 2 has an initial state and a brushing state, respectively convex and concave relative to the brush head frame 1, and each bristle bundle 31 in the cleaning section 3 has a diverging state and a convergent state, respectively corresponding to the initial state and the brushing state of the bristle implant 2. By providing an elastically deformable bristle implant 2 on the brush head, the bristle implant 2 can undergo concave deformation toward the inside of the brush head frame 1 under a positive force F during brushing, while simultaneously driving the cleaning ends 311 of each bristle bundle 31 toward the central axis of the bristle implant 2. The bristles converge (L) to form a cleaning surface 32 with increased bristle density and reduced area, reducing the pressure exerted by the bristles on the gums and preventing gum bleeding. Simultaneously, the increased pressure exerted by the bristles on the teeth enhances cleaning power. Furthermore, when the positive force F acting on the bristle implantation section 2 decreases or is removed, the entire bristle implantation section 2 can bulge and deform relative to the proximal side of the tooth, moving away from the brush head frame 1 to return to its initial state. This simultaneously drives the cleaning ends 311 of each bristle bundle 31 to diverge outwards along the central axis L of the bristle implantation section 2, increasing the gaps between the bristle bundles 31. This facilitates water drainage and bristle ventilation and drying, effectively preventing bacterial growth, improving the hygiene performance of the brush head, extending the toothbrush's lifespan, and ensuring user safety. It should be noted that the end of each bristle bundle 31 furthest from its root 312 is the cleaning end 311.

[0032] In this embodiment, as Figure 5 As shown, when the bristle implantation part 2 is in its initial state, it is not subject to external force and protrudes outward from the brush head frame 1 relative to the proximal tooth side. At this time, the deformation surface 20 on the bristle implantation part 2 is an outward convex surface, causing each bristle bundle 31 to disperse in different directions along the contour of the outward convex surface, thereby making the cleaning part 3 in a divergent state. At this time, drainage channels 33 can be formed around each bristle bundle 31, and each drainage channel 33 extends along the contour of the outward convex surface. The outward convex surface helps guide residual water in the brush head after the user washes through the drainage channels 33. At the same time, when the toothbrush is in a natural ventilated environment, ventilation gaps 34 are generated between each bristle bundle 31 in the divergent state and connected to the drainage channels 33. The ventilation gaps 34 can also enhance airflow, which is conducive to the drying of the bristles, effectively preventing bacterial growth, thereby improving the hygiene performance of the brush head, extending the service life of the toothbrush, and ensuring the user's safe use.

[0033] In this embodiment, as Figure 5As shown, during brushing, the cleaning part 3 is subjected to a positive force F from the oral cavity structure, which drives the bristle implantation part 2 to deform inward relative to the proximal tooth side towards the inside of the brush head frame 1. This causes the bristle implantation part 2 to switch from the initial state to the brushing state. At this time, a concave surface is formed on the bristle implantation part 2, causing the cleaning ends 311 of each bristle bundle 31 to converge towards the central axis L of the concave surface. This causes the cleaning part 3 to switch to the converged state, where the cleaning ends 311 of each bristle bundle 31 are concentrated in a denser area with a smaller surface area. In the cleaning surface 32, during brushing, the contact area between the bristles and the gums is reduced, thereby reducing the intensity of the action on the gums and effectively preventing gum bleeding. At the same time, the cleaning surface 32 increases the intensity of the action on the teeth, thereby enhancing the cleaning power and improving the brushing efficiency. When brushing is finished, the positive force F applied by the teeth to the cleaning part 3 is removed. At this time, the bristle part 2 can automatically rebound and return to the initial state under its own elastic force, so that the cleaning part 3 returns to the divergent state.

[0034] As an optional embodiment of this solution, the bristle implant 2 is made of a soft material capable of elastic deformation. This allows the bristle implant 2 to quickly and precisely produce controllable concave deformation when subjected to force, and to rapidly recover its convex shape when the external force disappears. This ensures that the bristle implant 2 maintains an integral deformation surface 20 that produces concave and convex elastic deformation, thereby precisely controlling the switching of the bristle bundles 31 between the dispersed state and the gathered state, further optimizing the balance between gum protection and cleaning effect. Secondly, the soft material has excellent elastic memory function, which can withstand repeated force during daily brushing, maintaining a stable elastic deformation cycle and avoiding the attenuation of deformation capacity due to material fatigue or plastic deformation. This ensures that the bristle bundles 31 can always reliably gather during brushing to maintain sufficient cleaning pressure and reduce gum irritation, and stably disperse in the initial state to ensure bristle drainage and drying, thus improving the durability of the toothbrush.

[0035] Furthermore, the soft material capable of elastic deformation includes at least one of TPE, TPU, and silicone, and the Shore hardness of the bristle implant 2 is greater than 90A, so that the bristle implant 2 can produce stable and controllable concave deformation when subjected to force, and will not cause excessive deformation due to the material being too soft, resulting in excessive bristle aggregation that could damage the oral cavity structure or a lack of resistance when pressing.

[0036] Furthermore, when the bristle implantation part 2 is configured as a soft bristle implantation part 2 capable of producing concave-convex elastic deformation, the connecting sleeve 212 forms a connecting carrier between the bristle bundle 31 and the soft bristle implantation part 2, which can solve the problem that the soft bristle implantation part 2 is difficult to directly implant bristles or that the bristle bundle 31 is difficult to fix. Specifically, for bristle implantation with metal sheet, the universal bristle implantation structure 21 can avoid the problem that the friction between the soft bristle implantation part 2 and the metal connector 4 is too small, which would cause the metal connector 4 to easily fall off and cause bristle loss. In addition, after the metal connector 4 is embedded in the connecting sleeve 212, it can compress the connecting sleeve 212, thereby enhancing the connection strength between the metal connector 4, the connecting sleeve 212 and the bristle implantation part 2, thereby avoiding the problem that the connecting sleeve 212 is easy to fall off during the concave-convex deformation of the bristle implantation part 2. For bristle implantation without metal sheet, the universal bristle implantation structure 21 can avoid the problem that the molten part of the soft bristle implantation part 2 and the bristle bundle 31 is difficult to fuse, which would cause the bristle bundle 31 to be difficult to fix and easy to fall off.

[0037] Furthermore, as an optional embodiment of this solution, such as Figure 8 and Figure 9 As shown, when the bristle implant 2 undergoes concave elastic deformation under force, the concave height of the bristle implant 2 gradually decreases from its central axis L towards both sides to facilitate the formation of a concave surface, ensuring that the cleaning ends 311 of each bristle bundle 31 converge towards the central axis L of the bristle implant 2. Furthermore, the concave height of the bristle implant 2 is the normal displacement of the bristle implant 2 under the brushing pressure. The maximum concave height of the bristle implant 2 can be set based on Hooke's Law according to the elastic modulus of the bristle implant 2 and the pressure applied by the user when brushing. For example, under normal circumstances, the pressure applied by the user when brushing is 2-5N, and the maximum concave height of the bristle implant 2 can be set to 1-3mm; when the user brushes gently, the pressure is 0.5-2N, and the maximum concave height of the bristle implant 2 can be set to 0.3-1mm to avoid damaging the gums.

[0038] Optionally, when the user brushes their teeth normally, the maximum concavity height of the bristle implant 2 can be set to 1mm, 1.5mm, 2mm or 3mm, etc.; when the user brushes their teeth gently, the maximum concavity height of the bristle implant 2 can be set to 0.5mm or 1mm, etc.

[0039] Further optional, Figure 9Another optional embodiment of this solution is shown, wherein each of the bristle bundles 31 is arranged on the bristle planting part 2. Specifically, the cleaning part 33 includes a first bristle bundle group 301, a second bristle bundle group 302, and a third bristle bundle group 303 arranged sequentially from the inside to the outside on the bristle planting part 2. The first bristle bundle group 301, the second bristle bundle group 302, and the third bristle bundle group 303 each include a plurality of bristle bundles 31. The number of bristle bundles 31 in the first bristle bundle group 301, the second bristle bundle group 302, and the third bristle bundle group 303 can be adjusted according to their arrangement position on the bristle planting part 2.

[0040] Furthermore, such as Figure 9As shown, each of the bristle bundles 31 in the first bristle bundle group 301 is distributed along the central axis L of the bristle implantation part 2. The first bristle bundle group 301 includes a first bristle bundle 301a, a second bristle bundle 301b, a third bristle bundle 301c, a fourth bristle bundle 301d, and a fifth bristle bundle 301e. A plurality of fifth bristle bundles 301e are provided and evenly distributed along the central axis L of the bristle implantation part 2. The first bristle bundles 301a and 301b are symmetrically arranged on both sides of the fifth bristle bundle 301e, and the third bristle bundles 301c and 301d are symmetrically arranged on both sides of the fifth bristle bundle 301e. On both sides of 1e, the third bristle bundle 301c and the fourth bristle bundle 301d are located around the first bristle bundle 301a and the second bristle bundle 301b; each bristle bundle 31 of the second bristle bundle group 302 is distributed along the first elliptical path S1 in the bristle implantation part 2, the first bristle bundle 301a and the second bristle bundle 301b are respectively located at both ends of the major axis of the first elliptical path S1, the second bristle bundle group 302 includes a first left bristle bundle 302a and a first right bristle bundle 302b symmetrically arranged on the first elliptical path S1, the first left bristle bundle 302a and the first right bristle bundle 302b Several bristle bundles 302b are provided in a one-to-one correspondence. Each of the first left-side bristle bundles 302a is evenly distributed along the first elliptical path S1 on the left side of the central axis L of the bristle implantation part 2, and each of the first right-side bristle bundles 302b is evenly distributed along the first elliptical path S1 on the right side of the central axis L of the bristle implantation part 2. Each of the bristle bundles 31 of the third bristle bundle group 303 is distributed along the second elliptical path S2 in the bristle implantation part 2, and the second elliptical path S2 is located outside the first elliptical path S1. The third bristle bundle 301c and the fourth bristle bundle 301d are respectively located on the second elliptical path. At both ends of the major axis of diameter S2, the third bristle group 303 includes a second left bristle 303a and a second right bristle 303b symmetrically arranged on the second elliptical path S2. Several second left bristle 303a and second right bristle 303b are provided in a one-to-one correspondence. Each second left bristle 303a is roughly evenly distributed along the second elliptical path S2 on the left side of the central axis L of the bristle planting part 2, and each second right bristle 303b is roughly evenly distributed along the second elliptical path S2 on the right side of the central axis L of the bristle planting part 2, thus optimizing the arrangement of each bristle 31 on the bristle planting part 2.When the bristle implantation part 2 is in the concave brushing state, the first left bristle tuft 302a and the first right bristle tuft 302b, and the second left bristle tuft 303a and the second right bristle tuft 303b respectively converge towards the direction of the central axis L of the bristle implantation part 2, and each of the first left bristle tuft 302a and each of the second left bristle tuft 303a are staggered, that is, any first left bristle tuft 302a is located between two adjacent second left bristle tufts 303a. Similarly, each of the first right bristle tuft 302b and each of the second right bristle tuft 303b are staggered, which can increase the bristle density and bristle uniformity of the cleaning surface 32, avoid the phenomenon of sparse bristles and local density increase, and thus ensure the improvement of toothbrush cleaning power and the optimization of user experience. It should be noted that the roots 312 of each bristle tuft 31 are distributed along different paths to form the arrangement of the first bristle tuft group 301, the second bristle tuft group 302, and the third bristle tuft group 303. ;

[0041] Optional, such as Figure 9 As shown, the minor axis length of the first elliptical path S1 is half the minor axis length of the second elliptical path S2, and the difference between the major axis length of the second elliptical path S2 and the major axis length of the first elliptical path S1 is the sum of the distance between the first hair bundle 301a and the third hair bundle 301c and the distance between the second hair bundle 301b and the fourth hair bundle 301d; further optionally, the distance between the first hair bundle 301a and the third hair bundle 301c is equal to the distance between the third hair bundle 301c and the fifth hair bundle 301e closest to it, and similarly, the distance between the second hair bundle 301b and the fourth hair bundle 301d is equal to the distance between the fourth hair bundle 301d and the fifth hair bundle 301e closest to it.

[0042] Optional, such as Figure 5 and Figure 9 As shown, when the bristle implantation part 2 is in the initial convex state, each bristle bundle 31 is perpendicular to the convex surface of the bristle implantation part 2. When the bristle implantation part 2 is in the concave brushing state, the bristle bundles 31 of the first bristle bundle group 301 sink down along the central axis L of the bristle implantation part 2, and the bristle bundles 31 of the second bristle bundle group 302 and the bristle bundles 31 of the third bristle bundle group 303 converge toward the central axis L of the bristle implantation part 2, so that a slightly concave cleaning surface 32 is formed on the cleaning part 33, making the cleaning surface 32 more in line with the tooth surface contour, thereby making the bristles maintain uniform contact with the tooth surface and reducing cleaning blind spots in the teeth; wherein, the slightly concave cleaning surface 32 is approximately the same as the concave surface.

[0043] As an optional embodiment of this solution, such as Figure 3As shown, the brush head frame 1 also has a partition 11 located on one side of the bristle implantation part 2. The partition 11, the brush head frame 1, and the bristle implantation part 2 enclose a hollow cavity 12. In this embodiment, the hollow cavity 12 provides sufficient concave deformation space for the soft bristle implantation part 2, which can reduce the deformation resistance of the soft bristle implantation part 2, thereby improving the deformation capability of the soft bristle implantation part 2, and thus enhancing the gathering effect of the cleaning part 33, thereby improving the cleaning power of the toothbrush. Secondly, by setting the hollow cavity 12, the amount of material used in the brush head frame 1 is reduced, which is conducive to achieving the lightweight of the toothbrush and improving the hand-holding comfort. In addition, in the actual production process, the hollow cavity 12 can be directly formed by adjusting the distance between the partition 11 and the bristle implantation part 2 without additional assembly steps, which helps to shorten the production process and improve the production efficiency of the toothbrush.

[0044] Further optional, such as Figure 3 As shown, the thickness of the bristle implantation part 2 is less than the thickness of the brush head frame 1, so as to ensure that the hollow cavity 12 has sufficient space in the brush head frame 1.

[0045] As another optional embodiment of this solution, the brush head frame 1 is further provided with a wrapping part 13 located on one side of the partition part 11, and the partition part 11 is located between the hollow cavity 12 and the wrapping part 13; in this embodiment, the partition part 11 can be set as a partition plate, and the wrapping part 13 covers the partition plate to improve the aesthetics of the toothbrush and further optimize the user experience.

[0046] As another optional embodiment of this solution, such as Figure 6 and Figure 7 As shown, both ends of the connecting sleeve 212 are provided with flanges 2122 extending outward. The flanges 2122 on both sides clamp the bristle-planting part 2 to prevent the connecting sleeve 212 from easily falling off when the bristle-planting part 2 undergoes concave-convex deformation, thereby improving the connection stability of the connecting sleeve 212 and extending the service life of the toothbrush. It should be noted that in the actual production process, the width of the flanges 2122 can be adjusted to ensure that the connecting sleeve 212 can be inserted into the bristle-planting part 2 under external force.

[0047] Example 4: The difference between this fourth embodiment and the third embodiment is that the bristle implantation part 2 is made of a rigid material capable of elastic deformation. This embodiment improves the material of the bristle implantation part 2 by providing a rigid, elastic bristle implantation part 2, enhancing the functionality and applicability of the toothbrush. It also improves the deformation precision of the bristle implantation part 2, making the overall concave-convex deformation of the bristle implantation part 2 more controllable and precise. This allows the convergence or dispersion of each bristle bundle 31 to better adapt to the user's brushing force, further improving the controllability of the toothbrush's cleaning effect. This improves gum protection and brushing comfort. Secondly, the rigid elastic material has a higher elastic modulus, which reduces the stress load on the rigid bristle implant 2, effectively preventing the accumulation of plastic deformation caused by long-term repeated deformation of the bristle implant 2, preventing the thickness reduction and uneven deformation attenuation of the bristle implant 2 under long-term use, thereby extending the service life of the bristle implant 2. In addition, the rigid bristle implant 2 can improve the connection strength and stability with the brush head frame 1, which can reduce the risk of the bristle implant 2 separating from the brush head frame 1 during long-term use, thereby improving the service life and reliability of the toothbrush.

[0048] Furthermore, the rigid material includes at least one of metal and plastic materials. In actual production and processing, by improving the manufacturing materials and processes of the rigid bristle implantation part 2, the adaptability and functionality of the toothbrush to different usage scenarios can be enhanced, solving the limitations of traditional toothbrushes in terms of performance, cost, and application range. It should be noted that the thickness of the rigid bristle implantation part 2 can be adjusted according to the material selected in actual production, its elastic modulus, and the preset recess height. No specific limitation is made here. Moreover, since the rigid material has a higher elastic modulus and requires a shorter deformation stroke compared to the soft material, the deformation stroke produced by the same external force on the soft and hard materials is different. Therefore, the thickness of the rigid bristle implantation part 2 is less than the thickness of the soft bristle implantation part 2 described in the above embodiment three.

[0049] Optionally, the metal material includes pure metal or alloy. For example, the metal material can be one of spring steel, titanium alloy, nickel-titanium shape memory alloy, etc. When the bristle implant 2 is made of metal material, the metal bristle implant 2 is not prone to plastic deformation or breakage while ensuring that the bristle implant 2 is not deformed relative to the brush head frame 1. This ensures the structural stability of the toothbrush during long-term use, allowing the toothbrush to adapt to scenarios where brushing is done with great force, such as when orthodontic patients need to apply 5-8N of pressure to the toothbrush when cleaning brackets. Secondly, the metal bristle implant 2 can improve the tolerance to high-temperature sterilization and strong acid and alkali environments, and is not prone to aging, swelling or deformation failure. It can adapt to surgical toothbrushes that require repeated high-temperature sterilization in medical scenarios.

[0050] Furthermore, when the bristle implantation part 2 is configured as a metal bristle implantation part 2 capable of producing concave-convex elastic deformation, the connecting sleeve 212 forms a connecting carrier between the bristle bundle 31 and the metal bristle implantation part 2, which can solve the problems of the metal bristle implantation part 2 being difficult to directly implant bristles or the bristle bundle 31 being difficult to fix. Specifically, for bristle implantation with metal sheet, the universal bristle implantation structure 21 can avoid the problem that the metal connector 4 cannot be embedded in the metal bristle implantation part 2, thus preventing the bristle implantation from being impossible. In addition, after the metal connector 4 is embedded in the connecting sleeve 212, it can compress the connecting sleeve 212, thereby enhancing the connection strength between the metal connector 4, the connecting sleeve 212 and the bristle implantation part 2, thus avoiding the problem that the connecting sleeve 212 is easy to fall off during the concave-convex deformation of the bristle implantation part 2. For bristle implantation without metal sheet, the universal bristle implantation structure 21 can avoid the problem that the molten part of the metal bristle implantation part 2 and the bristle bundle 31 are difficult to fuse, thus preventing the bristle bundle 31 from being difficult to fix and easy to fall off.

[0051] Furthermore, to avoid the problem of corrosion and oxidation of the metal bristle implant 2 when exposed to water for a long time, a waterproof treatment can be applied to the surface of the metal bristle implant 2, such as coating a waterproof layer. Alternatively, the metal bristle implant 2 can be made of a waterproof metal material to improve the stability of the metal bristle implant 2, extend its service life, improve the safety of the toothbrush, and protect the user's oral health.

[0052] Alternatively, the plastic material may include at least one of the following: shape memory polymer (SMP), glass fiber reinforced thermoplastic elastomer (GF-TPE), and polycarbonate (PC). These plastic materials have the advantages of being easy to process and having low cost. The bristle implantation part 2 can be integrally injection molded, which greatly simplifies the processing technology of the bristle implantation part 2, facilitates large-scale production, and reduces production costs. It should be noted that in the actual toothbrush production process, a moderate elastic modulus and a moderate deformation range can be achieved by adjusting the corresponding plastic composition and formula, so that the bristle implantation part 2 can be adapted to the actual application of the toothbrush. The specific composition ratio of the plastic material is not limited here.

[0053] Example 5: On the other hand, such as Figure 10 As shown, the present invention also provides a method for manufacturing a toothbrush, the method being used to produce a toothbrush as described in any of the above embodiments, comprising at least the following steps: The hair-planting part 2 is integrally molded, wherein the hair-planting part 2 is provided with a plurality of hair-planting holes 211; Insert the connecting sleeve 212 into the corresponding hair-implanting hole 211; The bristle bundle 31 is inserted into the connecting sleeve 212, and the connecting sleeve 212 is heated and melted to fix the bristle bundle 31; or, a metal connector 4 is assembled at the root 312 of the bristle bundle 31 and inserted into the connecting sleeve 212.

[0054] The universal bristle implantation structure 21 on the toothbrush head is formed by the bristle implantation hole 211 on the bristle implantation part 2 and the connecting sleeve 212. It can be adapted to both metal-sheet bristle implantation processes and metal-sheet-free bristle implantation processes, thus improving the processing adaptability and flexibility of the toothbrush.

[0055] As an optional embodiment of this solution, the bristle implantation part 2 can be made of a soft or hard material capable of elastic deformation and manufactured by an integral molding process, so that the bristle implantation part 2 naturally forms multiple bristle implantation holes 211, which simplifies the production process of the bristle implantation part 2 and helps to improve the production efficiency of toothbrushes.

[0056] As an optional embodiment of this solution, the connecting sleeve 212 is made of plastic, preferably a thermoplastic material, and the hardness of the connecting sleeve 212 is less than that of the copper sheet, so as to ensure that the connecting sleeve 212 can be adapted to both metal sheet-based and metal sheet-less fiber implantation processes.

[0057] As an optional embodiment of this solution, when using a metal sheet bristle implantation process, the connecting sleeve 212 can be inserted into the bristle implantation hole 211 first, and then the metal connector 4 with the bristle bundle 31 installed can be inserted into the connecting sleeve 212. Then, the bristle implantation part 2 can be fixedly connected to the brush head frame 1, or the bristle implantation part 2 can be integrally formed with the brush head frame 1. For example, when the bristle implantation part 2 is made of a hard material, the bristle implantation part 2 can be installed in the brush head frame 1 with a preset bending degree. It should be noted that before inserting the metal connector 4 into the connecting sleeve 212, the connecting sleeve 212 can be pressed from the side of the bristle implantation part 2 away from the insertion direction of the metal connector 4 by a corresponding clamp to ensure the stability of the connecting sleeve 212, thereby ensuring that the metal connector 4 is pressed by external force and inserted into the connecting sleeve 212, and preventing the connecting sleeve 212 from being dislodged from the bristle implantation part 2 by impact force.

[0058] As another optional embodiment of this solution, when using a metal-free bristle implantation process, the connecting sleeve 212 can be inserted into the bristle implantation hole 211, and the bristle bundle 31 can be inserted into the connecting sleeve 212. Then, the connecting sleeve 212 and the root 312 of the bristle bundle 31 are heated to melt them, so that the molten parts of the two are mixed and tightly wrapped between the root 312 of the bristle bundle 31 and the connecting sleeve 212. After cooling, the bristle bundle 31 is fixed at the connecting sleeve 212.

[0059] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A toothbrush having a universal bristle configuration, characterized by, The toothbrush comprises a brush head frame (1), a bristle implanting part (2) arranged in the brush head frame (1), and a cleaning part (3) arranged on the bristle implanting part (2), wherein the cleaning part (3) comprises a plurality of bristle bundles (31), and the bristle implanting part (2) is provided with a universal bristle implanting structure (21) for connecting the bristle bundles (31). The universal bristle implanting structure (21) comprises a plurality of bristle implanting holes (211) arranged in the bristle implanting part (2) and corresponding to the bristle bundles (31), and a connecting sleeve (212) arranged in each bristle implanting hole (211), wherein any connecting sleeve (212) is provided with a receiving cavity (2121) for accommodating the bristle bundle (31), any bristle bundle (31) is directly or indirectly fixed in the corresponding receiving cavity (2121), and any connecting sleeve (212) is made of plastic.

2. A toothbrush having a universal bristle configuration according to claim 1, wherein, The bristle bundle (31) is fixed in the bristle implanting part (2) by hot melting of the connecting sleeve (212).

3. A toothbrush having a universal bristle configuration according to claim 1, wherein, Any bristle bundle (31) is fixed on the connecting sleeve (212) by embedding a metal connecting piece (4), and both ends of the metal connecting piece (4) are embedded into the connecting sleeve (212), so that the bristle bundle (31) is fixed on the bristle implanting part (2); the hardness of the metal connecting piece (4) is greater than the hardness of the connecting sleeve (212).

4. A toothbrush having a universal bristle configuration according to claim 3, wherein, The wall thickness W of the connecting sleeve (212) is 0.2mm-0.4mm.

5. A toothbrush having a universal bristle configuration according to any one of claims 1 to 4, wherein, The bristle implanting part (2) protrudes from the brush head frame (1), so that each bristle bundle (31) diverges along the central axis L of the bristle implanting part (2); the bristle implanting part (2) is elastically deformed to be concave relative to the brush head frame (1), so that each bristle bundle (31) converges towards the central axis L of the bristle implanting part (2).

6. A toothbrush having a universal bristle configuration according to claim 5, wherein, The bristle implanting part (2) is made of a soft material capable of elastic deformation, which at least comprises one of TPE, TPU and silica gel, and the Shore hardness of the bristle implanting part (2) is greater than 90A.

7. A toothbrush having a universal bristle configuration according to claim 5, wherein, The bristle implanting part (2) is made of a hard material capable of elastic deformation, which at least comprises one of metal material and plastic material.

8. A toothbrush having a universal bristle configuration according to claim 5, wherein, The brush head frame (1) further comprises a separation part (11) on one side of the bristle implanting part (2), and a hollow cavity (12) is formed between the separation part (11), the brush head frame (1) and the bristle implanting part (2).

9. A toothbrush having a universal bristle configuration according to claim 8, wherein, The brush head frame (1) further comprises a wrapping part (13) on one side of the separation part (11), and the separation part (11) is between the hollow cavity (12) and the wrapping part (13).

10. A method of manufacturing a toothbrush, characterized by, The processing method is used for manufacturing the toothbrush according to any one of claims 1 to 9, and at least comprises the following steps: The bristle implanting part (2) is made by one-piece molding, wherein the bristle implanting part (2) is provided with a plurality of bristle implanting holes (211); The connecting sleeve (212) is correspondingly inserted into the bristle implanting hole (211); The bristle bundle (31) is fixed in the bristle implanting part (2) by hot melting of the connecting sleeve (212). The bristle bundle (31) is inserted into the connecting sleeve (212) in correspondence, and the connecting sleeve (212) is heated and melted to fix the bristle bundle (31); or, a metal connecting piece (4) is assembled at the root (312) of the bristle bundle (31), and the metal connecting piece (4) is inserted into the connecting sleeve (212).

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