CN214908509U

CN214908509U - Brush head assembly and toothbrush

Info

Publication number: CN214908509U
Application number: CN202120820049.7U
Authority: CN
Inventors: 李鹏; 张远平; 孟凡迪
Original assignee: Shenzhen Sushi Technology Co Ltd
Current assignee: Soocare Shenzhen Technology Co Ltd; Shenzhen Sushi Technology Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-30
Anticipated expiration: 2031-04-20

Abstract

The embodiment of the utility model discloses brush head subassembly and toothbrush relates to personal care technical field. The brush head component adopts the handle part with the mounting groove, the outer side of the handle part is coated with the soft piece, the handle part is prevented from directly touching the gum and the teeth when in use, and the soft piece has the characteristic of elastic buffering, so that the gum and the teeth are prevented from being injured; in addition, the mounting groove is formed by surrounding a bottom surface and an annular wall, and the annular wall is provided with a first clamping part extending along the circumferential direction of the annular wall; this brush head assembly still includes that the part is acceptd the connecting piece in the mounting groove, be equipped with the second joint portion with first joint portion joint on the circumference wall of this connecting piece, when the stalk portion cladding has soft piece and is connected connecting piece and stalk portion through the supersound butt fusion, soft piece can absorb the ultrasonic wave, lead to connecting piece and stalk portion ultrasonic transmission inefficacy to effectively connect, above-mentioned scheme adopts connecting piece and stalk portion joint, avoids adopting the supersound butt fusion to be connected the connecting piece that leads to with stalk portion and connecting piece and easily drops the emergence.

Description

Brush head assembly and toothbrush

Technical Field

The utility model relates to a personal care technical field especially relates to a brush head subassembly and toothbrush.

Background

The hard rubber brush handle and the hair-planting piece are made of the same material in the existing brush head assembly manufactured by the copper-free hair-planting technology, and the hard rubber brush handle and the hair-planting piece are welded together by the ultrasonic technology of ultrasonic high-frequency vibration. The ultrasonic process ensures that the inlet cavity part at the front end of the hard rubber brush handle cannot be coated with soft rubber for the second time, and the outer surface of the toothbrush head is easy to damage the gum or hurt the teeth because of over hardness when a user uses the toothbrush.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a brush head assembly and a toothbrush, and the purpose is to solve the problem that the inlet cavity part at the front end of the hard rubber brush handle cannot be coated with soft rubber for the second time due to the fact that the hard rubber brush handle and the hair-planting part are welded by ultrasound in the existing brush head assembly.

In order to solve the technical problem, the utility model discloses a technical scheme one is:

a brushhead assembly, comprising:

the handle part comprises a bottom surface and an annular wall arranged on the circumferential direction of the bottom surface, the bottom surface and the annular wall are surrounded to form a mounting groove, a first clamping part is arranged on the annular wall, and the first clamping part extends along the circumferential direction of the annular wall;

the connecting piece is at least partially accommodated in the mounting groove, a circumferential wall is arranged on the circumferential direction of the connecting piece, and a second clamping portion clamped with the first clamping portion is arranged on the circumferential wall; and

the soft piece is coated on the outer side of the handle part.

In some embodiments of the brush head assembly, the first clamping portion includes a guide surface located on the annular wall and a concave surface recessed from the annular wall toward the handle, the second clamping portion protrudes outward from the circumferential wall toward a side away from the connecting member, and the second clamping portion can be guided into the concave surface from the guide surface.

In some embodiments of the brush head assembly, the concave surface is an arc surface, and the second clamping portion is matched with the concave surface and attached to the concave surface.

In some embodiments of the brush head assembly, the number of the concave surfaces is multiple and is distributed along the circumferential direction of the annular wall, the number of the second clamping portions is the same as that of the concave surfaces, and each second clamping portion is matched with each concave surface in a one-to-one correspondence manner; or

The concave surface is for following the annular structure of the circumference extension of rampart, second joint portion with the concave surface phase-match or the quantity of second joint portion is a plurality of and follows concave surface interval distribution.

In some embodiments of the brushhead assembly, the side of the connecting member facing the bottom surface is provided with an abutment.

In some embodiments of the brushhead assembly, the abutment portion includes a circumferential surface facing the annular wall, the circumferential surface being connected at one end to the circumferential wall, the circumferential surface being deflected away from the circumferential wall to a side remote from the annular wall and extending towards the base surface.

In some embodiments of the brushhead assembly, the abutment portion has an end face facing the bottom face, the circumferential face extends to the end face, a projection is provided on the end face, and an orthographic projection of the projection on the bottom face is smaller than an orthographic projection of the end face on the bottom face.

In some embodiments of the brush head assembly, a first concave-convex part is arranged on one side of the handle part, which is far away from the mounting groove, and a second concave-convex part which is inserted and connected with the first concave-convex part is arranged on the soft piece.

In some embodiments of the brush head assembly, the brush head assembly further includes a neck, a neck contracting portion connected with the handle is arranged at one end of the neck, a protruding portion connected with the handle is arranged on the neck contracting portion, an external member sleeved on the soft member is arranged on the neck contracting portion, the external member is provided with a holding groove, the external member is complementary to the neck contracting portion, and the protruding portion can be accommodated in the holding groove.

In order to solve the technical problem, the utility model discloses a technical scheme two be:

a toothbrush, comprising:

a handle; and

the brushhead assembly, as described above, is located at one end of the handle.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the brush head component of the scheme is applied to the toothbrush, so that the toothbrush has excellent oral cavity cleaning efficiency, and can avoid the phenomenon that the toothbrush is too hard to damage gums or hurt teeth. Particularly, the brush head component adopts a handle part with a mounting groove, the outer side of the handle part is coated with a soft piece, the handle part is prevented from directly touching gum and teeth when in use, and the soft piece has the characteristic of elastic buffering, so that gum injury and tooth injury are avoided; in addition, the mounting groove is formed by surrounding a bottom surface and an annular wall, and the annular wall is provided with a first clamping part extending along the circumferential direction of the annular wall; this brush head assembly still includes that the part is acceptd the connecting piece in the mounting groove, be equipped with the second joint portion with first joint portion joint on the circumference wall of this connecting piece, when the stalk portion cladding has soft piece and is connected connecting piece and stalk portion through the supersound butt fusion, soft piece can absorb the ultrasonic wave, lead to connecting piece and stalk portion ultrasonic transmission inefficacy to effectively connect, above-mentioned scheme adopts connecting piece and stalk portion joint, avoids adopting the supersound butt fusion to be connected the connecting piece that leads to with stalk portion and connecting piece and easily drops the emergence.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

FIG. 1 is a schematic view of a connection member of a brushhead assembly of one embodiment shown separated from a handle;

FIG. 2 is an exploded view of the brushhead assembly of FIG. 1;

FIG. 3 is a top view of a brush head assembly according to one embodiment;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

fig. 5 is an enlarged schematic view of a portion B in fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in FIG. 1, the present application provides a toothbrush, which is an oral cleaning device. The toothbrush includes a handle (not shown) and a brushhead assembly at one end of the handle. The toothbrush can be a manual toothbrush or an electric toothbrush according to the type of the handle. In this embodiment, the toothbrush is the electrodynamic type toothbrush, and its handle is equipped with vibrating motor, and the vibration that this vibrating motor produced can transmit to brush head subassembly through the handle to clean the oral cavity. It will be appreciated that in other embodiments, a drive motor may be provided in the handle which is capable of rotating the cleaning elements 30 in the brushhead assembly to clean the mouth.

Further, as shown in fig. 1 and 2, the brush head assembly includes a handle 10, a connecting member 20, cleaning members 30, and a soft member 40. As shown in fig. 4, the handle 10 includes a bottom surface 11 and an annular wall 12 disposed on a circumferential direction of the bottom surface 11, and the bottom surface 11 and the annular wall 12 surround to form a mounting groove 13. As shown in fig. 5, the annular wall 12 is provided with a first clamping portion 121, and the first clamping portion 121 extends along the circumferential direction of the annular wall 12. The connecting member 20 is at least partially received in the mounting groove 13, a circumferential wall 21 is disposed on the circumferential direction of the connecting member 20, and a second engaging portion 211 engaged with the first engaging portion 121 is disposed on the circumferential wall 21. The cleaning members 30 are provided to the connecting member 20. The soft member 40 is covered on the outer side of the handle 10, the soft member 40 is provided with a through hole 41, and the cleaning member 30 can extend out of the through hole 41.

To sum up, implement the embodiment of the utility model provides a, will have following beneficial effect: the brush head component of the scheme is applied to the toothbrush, so that the toothbrush has excellent oral cavity cleaning efficiency, and can avoid the phenomenon that the toothbrush is too hard to damage gums or hurt teeth. Specifically, the brush head component adopts the handle part 10 with the installation groove 13, the outer side of the handle part 10 is coated with the soft piece 40, the handle part 10 is prevented from directly touching the gum and the teeth when in use, and the soft piece 40 has the characteristic of elastic buffering, so that the gum is prevented from being damaged and the teeth are prevented from being injured; in addition, the mounting groove 13 is formed by surrounding a bottom surface 11 and an annular wall 12, and the annular wall 12 is provided with a first clamping part 121 extending along the circumferential direction of the annular wall 12; this brush head assembly still includes that part accepts the connecting piece 20 in mounting groove 13, be equipped with the second joint portion 211 with first joint portion 121 joint on the circumference wall 21 of this connecting piece 20, when the cladding of stalk portion 10 has soft piece 40 and when being connected connecting piece 20 and stalk portion 10 through ultrasonic welding, soft piece 40 can absorb the ultrasonic wave, lead to connecting piece 20 and stalk portion 10 ultrasonic transmission inefficacy can not effectively be connected, above-mentioned scheme adopts connecting piece 20 and stalk portion 10 joint, avoid adopting the ultrasonic welding to be connected the connecting piece 20 that leads to with stalk portion 10 and connecting piece 20 and easily drops the emergence.

Specifically, in this embodiment, the soft part 40 may be wrapped outside the handle 10 by a two-shot injection molding and elastomer wrapping soft rubber, or wrapped outside the handle 10 by a two-shot liquid silicone wrapping, or wrapped outside the handle 10 by bonding, welding, or the like. The material of the flexible member 40 includes, but is not limited to, thermoplastic elastomer (TPE), thermoplastic polyurethane elastomer (TPU), rubber material, silicone or liquid silicone material. In addition, in the present embodiment, the connecting member 20 may be a bristle-implanted member, and the cleaning member 30 may be bristles, which are welded to each other through a copper-free bristle-implanting process. It is understood that in other embodiments, the bristle-implanted part and the bristle can be connected into a whole by copper bristle-implanting or injection molding.

In one embodiment, as shown in fig. 5, the first clamping portion 121 includes a guiding surface 1211 located on the annular wall 12 and a concave surface 1212 recessed from the annular wall 12 toward the handle 10, the second clamping portion 211 protrudes from the circumferential wall 21 to a side away from the connecting member 20, and the second clamping portion 211 can lead from the guiding surface 1211 to the concave surface 1212. In this way, during the process of clamping the second clamping portion 211 into the concave surface 1212, the second clamping portion 211 can slide along the guide surface 1211 towards the concave surface 1212, and the guide surface 1211 can compress the second clamping portion 211 to facilitate the sliding towards the concave surface 1212. In this embodiment, the guiding surface 1211 is located on the annular wall 12, that is, on the surface of the annular wall 12 facing the connecting member 20, and is located in the same plane as the opening of the concave surface 1212, so that when the second locking portion 211 is received in the concave surface 1212, the guiding surface 1211 also plays a role in preventing the second locking portion 211 from coming out of the concave surface 1212. It is understood that in other embodiments, the guiding surface 1211 may be inclined toward the concave surface 1212, that is, an included angle exists between a plane of the guiding surface 1211 and a plane of an opening of the concave surface 1212, so that the second locking portion 211 can be guided to the concave surface 1212 more conveniently, and the assembly efficiency can be improved.

In one embodiment, please continue to refer to fig. 5, the concave surface 1212 is an arc surface, and the second locking portion 211 matches with the concave surface 1212 and fits to the concave surface 1212, that is, the second locking portion 211 has an arc structure matching with the concave surface 1212, so that the second locking portion 211 can be compressed by the guide surface 1211 and slide into the concave surface 1212 through the guide surface 1211 to fit to the concave surface 1212. It should be understood that in other embodiments, the second fastening portion 211 may also be a convex structure with other shapes, and the shape of the concave surface 1212 matches with the second fastening portion 211 to ensure that the two are tightly connected. In addition, in other embodiments, the concave surface 1212 may also be a convex structure protruding out of the handle 10, and the second clamping portion 211 is a concave structure recessed into the connecting member 20, so that the clamping between the handle 10 and the connecting member 20 can also be achieved by clamping the convex structure and the concave structure.

In one embodiment, with continued reference to fig. 5, the number of the concave surfaces 1212 is plural and is distributed along the circumferential direction of the annular wall 12. The solid structure of the shank 10 is provided between the concave surfaces 1212, so that the shank 10 has high strength after the concave surfaces 1212 are opened. The number of the second clamping portions 211 is the same as that of the concave surfaces 1212, and each second clamping portion 211 is matched with each concave surface 1212 in a one-to-one correspondence manner. It is understood that in other embodiments, the number of the second clamping portions 211 in the same concave surface 1212 may also be multiple, and each second clamping portion 211 is spaced along the concave surface 1212. In addition, the concave surface 1212 may be an annular structure extending along the circumferential direction of the annular wall 12, and likewise, the second clamping portions 211 may be matched with the concave surfaces 1212 or be distributed in a plurality and spaced along the concave surfaces 1212.

In addition to the above-mentioned embodiments, please refer to fig. 5, the connecting element 20 is provided with an abutting portion 22 on a side facing the bottom surface 11. Therefore, the connecting piece 20 can be prevented from being excessively moved towards the bottom surface 11 to cause the second clamping portion 211 to be separated from the concave surface 1212, so that the connection between the handle 10 and the connecting piece 20 is failed. After the second clamping portion 211 is attached to the concave surface 1212, the abutting portion 22 may be suspended above the bottom surface 11 to leave a space for the connecting member 20 to move relative to the bottom surface 11, and the distance that the abutting portion 22 is suspended above the bottom surface 11 may ensure that the second clamping portion 211 is not separated from the concave surface 1212 when the abutting portion 22 abuts on the bottom surface 11. In addition, after the second clamping portion 211 is attached to the concave surface 1212, the abutting portion 22 may be designed to abut against the bottom surface 11, so as to enhance the effect of preventing the second clamping portion 211 from coming off from the concave surface 1212.

Further, the abutting portion 22 includes a circumferential surface 221 facing the annular wall 12, the circumferential surface 221 is connected to the circumferential wall 21 at one end, and the circumferential surface 221 is deflected from the circumferential wall 21 to a side away from the annular wall 12 and extends toward the bottom surface 11. The above arrangement leaves a deformable gap between the circumferential surface 221 and the annular wall 12, so that the second clamping portion 211 is prevented from being disengaged from the concave surface 1212, and at the same time, a flexible connection is formed between the handle 10 and the connecting member 20, i.e., the connecting member 20 can move relative to the handle 10 and has a certain resilience, so as to enhance the comfort of the cleaning member 30 in cleaning the oral cavity.

Further, the abutting portion 22 has an end surface 222 facing the bottom surface 11, the circumferential surface 221 extends to the end surface 222, the end surface 222 is provided with a protrusion 23, and an orthogonal projection of the protrusion 23 on the bottom surface 11 is smaller than an orthogonal projection of the end surface 222 on the bottom surface 11. So make protruding 23 relative terminal surface 222 have less size for protruding 23 is compressed more easily in the removal process of connecting piece 20 to bottom surface 11, forms bigger elastic potential energy and is used for the resilience of connecting piece 20, simultaneously, along with the increase of protruding 23 deflection, the elastic potential energy of its formation can further prevent connecting piece 20 to the removal of bottom surface 11, and then further prevent that second joint portion 211 from deviating from in concave surface 1212. The protrusions 23 may extend in the circumferential direction of the circumferential wall 21 or the number of the protrusions 23 is plural and is distributed on the end surface 222 at intervals in the circumferential direction of the circumferential wall 21.

In one embodiment, as shown in fig. 2 and 4, a first concave-convex portion 14 is provided on a side of the handle portion 10 away from the mounting groove 13, and a second concave-convex portion 42 is provided on the soft member 40 and is inserted into and connected with the first concave-convex portion 14. The coupling strength between the soft piece 40 and the handle 10 can be further enhanced by the interposing fit between the first concavo-convex portion 14 and the second concavo-convex portion 42 as such.

In one embodiment, as shown in fig. 1 to 3, the brush head assembly further includes a neck portion 50, a neck portion 51 connected to the handle portion 10 is disposed at one end of the neck portion 50, a protrusion 52 connected to the handle portion 10 is disposed on the neck portion 51, a sleeve 43 sleeved on the neck portion 51 is disposed on the soft member 40, the sleeve 43 is provided with a receiving groove 431, the sleeve 43 is complementary to the neck portion 51, and the protrusion 52 can be received in the receiving groove 431. The sleeve 43 can complement the necking part 51, and the connection strength of the soft part 40 and the handle part 10 and the neck part 50 is ensured, and simultaneously, the appearance of the toothbrush is further improved, so that the toothbrush has a streamline appearance. As shown in fig. 2, an end of the neck 50 away from the handle 10 is provided with a receiving cavity 53, a bracket 54 connected to the neck 50 is received in the receiving cavity 53, and the neck 50 is connected to the handle by the bracket 54.

As shown in fig. 3 and 4, a side of the soft component 40 facing away from the through hole 41 is further provided with a convex surface 44. The convex surface 44 can clean the tongue portion in the oral cavity.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. Brush first subassembly, its characterized in that: the method comprises the following steps:

the soft piece is coated on the outer side of the handle part.

2. The brushhead assembly of claim 1, wherein: first joint portion is including being located the spigot surface of annular wall with certainly the annular wall to the concave surface of stalk portion indent, second joint portion certainly the circumference wall is to keeping away from connecting piece one side evagination, second joint portion can certainly the spigot surface is led in the concave surface.

3. The brushhead assembly of claim 2, wherein: the concave surface is the cambered surface, second joint portion with the concave surface phase-match and with the concave surface laminating.

4. The brushhead assembly of claim 2, wherein: the number of the concave surfaces is multiple and is distributed along the circumferential direction of the annular wall, the number of the second clamping parts is consistent with that of the concave surfaces, and the second clamping parts are matched with the concave surfaces in a one-to-one correspondence mode; or

5. The brushhead assembly of any one of claims 1 to 4, wherein: and one side of the connecting piece facing the bottom surface is provided with a butting part.

6. The brushhead assembly of claim 5, wherein: the abutting portion comprises a circumferential surface facing the annular wall, one end of the circumferential surface is connected with the circumferential wall, and the circumferential surface is deflected towards one side far away from the annular wall from the circumferential wall and extends towards the bottom surface.

7. The brushhead assembly of claim 6, wherein: the abutting portion is provided with an end face facing the bottom face, the circumferential face extends to the end face, a protrusion is arranged on the end face, and the orthographic projection of the protrusion on the bottom face is smaller than that of the end face on the bottom face.

8. The brushhead assembly of claim 1, wherein: and a first concave-convex part is arranged on one side of the handle part, which is deviated from the mounting groove, and a second concave-convex part which is inserted and connected with the first concave-convex part is arranged on the soft piece.

9. The brushhead assembly of claim 1, wherein: the first subassembly of brush still includes the neck, the one end of neck be equipped with the throat that the stalk portion is connected, be equipped with on the throat with the bellying that the stalk portion is connected, be equipped with the cover on the soft piece and locate the external member of throat, the external member is equipped with the holding tank, the external member complementary in the throat, the bellying can accept in the holding tank.

10. A toothbrush, characterized by: the method comprises the following steps:

a handle; and

the brushhead assembly of any one of claims 1 to 9, wherein the brushhead assembly is located at one end of the handle.