CN219782798U

CN219782798U - Toothbrush head and toothbrush assembly

Info

Publication number: CN219782798U
Application number: CN202320620899.1U
Authority: CN
Inventors: 郭建刚; 唐受强
Original assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Current assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-10-03
Anticipated expiration: 2033-03-24

Abstract

The utility model provides a toothbrush head and a toothbrush assembly, and belongs to the technical field of electric toothbrushes. The toothbrush head is including being the brush-holder stud that the cavity set up and locating the actuating lever in the brush-holder stud, the toothbrush head still includes: the brush disc is rotationally arranged on the brush rod, one surface of the brush disc is provided with brush hair, and the other surface of the brush disc is provided with a protruding part extending into the brush rod; the hardware piece is fixed on the protruding portion, and the hardware piece at least comprises a first sheet body, the first sheet body is bent to form a wrapping groove, a ball head of the driving rod stretches into the wrapping groove, and the driving rod can sequentially collide with two opposite side walls of the wrapping groove to drive the brush disc to swing synchronously when swinging. The wear of the toothbrush head can be reduced by matching the hardware piece on the brush disc with the ball head of the driving rod, so that the service life of the toothbrush head is prolonged.

Description

Toothbrush head and toothbrush assembly

Technical Field

The utility model belongs to the technical field of electric toothbrushes, and particularly relates to a toothbrush head and a toothbrush assembly.

Background

The existing rotary electric toothbrush head generally drives the brush head arranged at the end part of the brush rod to swing back and forth through a transmission rod in the brush rod, so that the brush hair on the brush head generates high-frequency vibration to realize the function of brushing teeth. For example, chinese patent with publication number CN216417387U discloses an electric toothbrush head, which comprises a toothbrush rod and a toothbrush head arranged on the toothbrush rod, wherein a transmission rod is arranged in the toothbrush rod, a meshing sliding groove is arranged on the toothbrush head, a ball head at the front end of the transmission rod is arranged in the meshing sliding groove in a penetrating manner and is in sliding fit with the meshing sliding groove, and the transmission rod can drive the toothbrush head to swing back and forth through the sliding fit of the ball head and the meshing sliding groove when swinging in the toothbrush rod, so that bristles on the toothbrush head vibrate. However, the toothbrush head has the phenomenon of poor service life in use, and after a short period of use, the ball head of the transmission rod and the meshing sliding groove are easy to wear, so that the rotation angle of the toothbrush head is reduced, and particularly, the rotation angle after load is greatly reduced.

Disclosure of Invention

In view of the above-mentioned technical problems in the prior art, the present utility model provides a toothbrush head and a toothbrush assembly that can reduce wear of the toothbrush head and extend the service life thereof.

The technical scheme adopted by the embodiment of the utility model is as follows:

a toothbrush head comprising a brush bar that is hollow and a drive bar that is disposed within the brush bar, the toothbrush head further comprising:

the brush disc is rotationally arranged on the brush rod, one surface of the brush disc is provided with brush hair, and the other surface of the brush disc is provided with a protruding part extending into the brush rod;

the hardware piece is fixed on the protruding portion, the hardware piece at least comprises a first sheet body, the first sheet body is bent to form a wrapping groove, a ball head of the driving rod stretches into the wrapping groove, and the driving rod can be in contact with two side walls opposite to the wrapping groove in sequence during swinging so as to drive the brush disc to swing synchronously.

Further, the mounting groove is formed in the outer peripheral wall of the protruding portion, the first sheet body stretches into the mounting groove, the outer peripheral wall of the first sheet body abuts against the groove wall of the mounting groove, and the strength of the first sheet body can be enhanced through the abutting of the groove wall of the mounting groove and the outer peripheral wall of the first sheet body.

Further, the mounting groove penetrates to the free end of the protruding portion, and the first sheet body can slide into the mounting groove from the free end of the protruding portion along the direction close to the brush disc, so that the first sheet body can be conveniently mounted in the mounting groove.

Further, the hardware piece still include with the second lamellar body that first lamellar body is connected, first lamellar body slide to in the mounting groove, the second lamellar body with the free end laminating of bulge and can interconnect be in order to fix the hardware piece on the bulge, this structure can simplify the assembly process of hardware piece and brush dish's bulge.

Further, a sinking groove is formed in the end face of the free end of the protruding portion, the second sheet body is embedded into the sinking groove, two sheet bodies of the hardware sheet are respectively arranged in the corresponding grooves in the protruding portion, and occupied space of the protruding portion on the brush rod can be reduced.

Further, the free end of the protruding part is provided with a central hole; the toothbrush head is characterized by further comprising a rotating shaft arranged on the brush disc, the rotating shaft comprises a first shaft section and a second shaft section, a shaft shoulder is arranged between the first shaft section and the second shaft section, the second shaft section is used for being rotationally connected with the brush rod, and the first shaft section penetrates through and is fixed in the central hole of the protruding portion and is abutted to the second sheet body through the shaft shoulder so as to fix the hardware sheet on the protruding portion. The hardware piece is fixed by the rotating shaft, so that the toothbrush head can be prolonged in service life and good cleaning effect can be maintained.

Further, a mounting hole is formed in the brush rod, the second shaft section of the rotating shaft stretches into the mounting hole, and the toothbrush head further comprises a metal shaft sleeve which is fixed in the mounting hole and sleeved on the second shaft section of the rotating shaft. The friction between the rotating shaft and the brush rod can be reduced by the metal shaft sleeve arranged outside the second shaft section of the rotating shaft.

Further, the first sheet body and the second sheet body are of an integrated structure, and the hardware is simple in structure and convenient to process.

Further, the ball head comprises a ball body and a rod body connected with the ball body, the ball body stretches into the wrapping groove, a jack is formed in the driving rod, and the rod body is detachably inserted into the jack, so that the ball head can be conveniently installed and detached; the ball head is made of metal materials, and the ball head made of metal materials is selected to be in contact with the hardware piece, so that the service life of the toothbrush head can be further prolonged.

A toothbrush assembly comprising a handle with a drive mechanism disposed therein, the toothbrush assembly further comprising a toothbrush head according to any of the above embodiments, the handle being connected to the brush bar, the drive mechanism being connected to the drive bar for driving the drive bar to oscillate.

Compared with the prior art, the embodiment of the utility model has the beneficial effects that:

when the driving rod in the toothbrush head provided by the utility model swings, the bulb on the driving rod is abutted against the wrapping groove formed by bending the hardware sheets arranged on the toothbrush disc to drive the toothbrush disc to vibrate, so that the abrasion of the reciprocating swing of the driving rod on the toothbrush disc body can be reduced, and the service life of the toothbrush head is prolonged.

Drawings

FIG. 1 is an exploded view of a toothbrush head of an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of a toothbrush head according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a toothbrush head of an embodiment of the present utility model;

FIG. 4 is a schematic view showing a partial structure of a toothbrush head according to an embodiment of the present utility model;

fig. 5 is an exploded view of a brush plate and a hardware sheet according to an embodiment of the present utility model.

In the figure: 1-brushing a disc; 10-brushing; 11-a projection; 12-a sink; 13-mounting slots; 14-a central hole; 2-hardware sheets; 20-a first sheet; 21-a second sheet; 23-wrapping the trough; 24-through holes; 3-a brush bar; 30-brush head end base; 4-driving rod; 40-ball head; 400-sphere; 401-a rod body; 5-an inner plug; 6-rotating shaft; 60-a first shaft section; 61-a second shaft section; 7-a metal shaft sleeve; 8-safety nails.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present utility model, the present utility model is described in detail below with reference to the accompanying drawings and detailed description.

The embodiment of the utility model provides a toothbrush head, as shown in figures 1 to 3, which comprises a brush rod 3, a brush disc 1 and a driving rod 4, wherein the brush disc 1 and the driving rod 4 are arranged on the brush rod 3, one end of the brush rod 3 is provided with a brush head end seat 30, the brush disc 1 is arranged on the brush head end seat 30, the top surface of the brush disc 1 is provided with bristles 10, the bottom surface of the brush disc is provided with a protruding part 11 extending into the brush rod 3, the driving rod 4 is arranged in the brush rod 3 and is in transmission connection with the brush disc 1, and the brush disc 1 can be driven to swing by the left and right swing of the driving rod 4 in the brush rod 3, so that the toothbrush is used for brushing teeth.

The toothbrush head of this embodiment further includes a hardware piece 2, the hardware piece 2 is disposed on the protruding portion 11 of the brush tray 1, the hardware piece 2 includes at least a first piece 20, the first piece 20 is bent to form a wrapping groove 23, and a ball head 40 at the end of the driving rod 4 extends into the wrapping groove 23.

When the driving rod 4 swings clockwise, the ball head 40 can abut against the first side wall of the wrapping groove 23 and drive the brush disc 1 to swing synchronously; when the driving rod 4 swings in the counterclockwise direction, the ball head 40 can abut against a second side wall of the wrapping groove 23 opposite to the first side wall and drive the brush tray 1 to swing synchronously.

When the driving rod 4 in the toothbrush head of the embodiment swings, the bulb 40 on the driving rod is bent with the hardware piece 2 arranged on the brush disc 1 to form the wrapping groove 23 to collide with the brush disc 1 to drive the brush disc 1 to vibrate, so that the abrasion of the driving rod 4 to the brush disc 1 caused by the reciprocating swing can be reduced, and the service life of the toothbrush head is prolonged.

Opposite sides of the first sheet 20 in this embodiment are respectively bent toward the middle thereof to form a U-shaped wrapping groove 23, and the ball head 40 on the driving rod 4 is respectively abutted against opposite side walls of the U-shaped wrapping groove 23 during swinging, so that the U-shaped wrapping groove 23 is easy to bend and simple to process. Of course, the wrapping slot 23 of the present utility model is not limited to the U-shape of the present embodiment, and may be other shapes, as long as the ball head 40 swings to abut against the side wall of the wrapping slot 23 and drive the brush tray 1 to swing.

As shown in fig. 4 and 5, in some embodiments, the peripheral wall of the protruding portion 11 is provided with a mounting groove 13 adapted to the shape of the hardware piece 2, the first piece 20 is embedded into the mounting groove 13, and the peripheral wall of the first piece 20 abuts against the groove wall of the mounting groove 13, so that when the driving rod 4 swings, the acting force on the first piece 20 can directly act on the protruding portion 11, which can ensure the strength of the first piece 20, and avoid deformation of the first piece 20 caused by long-time swinging of the driving rod 4.

Further, as shown in fig. 5, in some embodiments, the mounting groove 13 on the protruding portion 11 penetrates downward to the free end of the protruding portion 11, and the first sheet 20 of the metal sheet 2 can slide upward into the mounting groove 13 from the free end of the protruding portion 11, and the peripheral wall of the first sheet 20 is always in contact with the groove wall of the mounting groove 13 during the sliding process.

The mounting groove 13 on the protruding portion 11 of the present embodiment is penetrated downward, wherein the downward direction is directed away from the bristles, and in this context, the upper part represents the side of the brush plate 1 where the bristles 10 are disposed, and the lower part represents the side of the brush plate 1 where the protruding portion 11 is disposed.

As shown in fig. 1 and 5, in some embodiments, the hardware chip 2 further includes a second chip 21, where the second chip 21 is connected to the first chip 20 and is located below the first chip 20, and the first chip 20 is perpendicular to the second chip 21.

As shown in fig. 4, when the first sheet 20 slides into the mounting groove 13, the second sheet 21 is attached to the free end of the protruding portion 11, and the second sheet 21 is connected to the free end of the protruding portion 11, so that the entire hardware 2 can be fixed to the protruding portion 11. The structure can simplify the assembly process of the hardware 2 and the brush disc 1.

As for the connection of the first sheet 20 and the free ends of the projections 11, a common mechanical connection means such as bolting or welding, cementing, etc. may be used. Meanwhile, the shape of the first sheet 20 is not particularly limited.

Further, the end surface of the free end of the protruding portion 11 of the present embodiment is recessed inward to form a sink groove 12, and the shape of the sink groove 12 is adapted to the shape of the first sheet 20. When the first sheet 20 of the metal sheet 2 slides into the mounting groove 13, the second sheet 21 can be completely embedded into the sink groove 12. Like this, two lamellar bodies of hardware chip 2 locate the inslot that corresponds on the bulge 11 respectively to can not increase the whole overall dimension of bulge 11, and then avoid increasing the occupation space of bulge 11 in brush-holder stud 3.

Preferably, the first sheet 20 and the second sheet 21 of the present embodiment may be in an integral structure, and may be formed by bending one sheet, which is simple in structure and convenient for processing the hardware sheet 2.

The brush plate 1 of this embodiment is rotatably disposed in the brush holder 3, and the protruding portion 11 of the brush plate 1 is connected to the rotation shaft 6, and the rotation shaft 6 is rotatably disposed in the brush holder 3, so that the brush plate 1 can swing around the axis of the rotation shaft 6 when swinging.

As shown in fig. 5, the free end of the protruding portion 11 in this embodiment is provided with a central hole 14, and the rotating shaft 6 is inserted into the central hole 14 and is in interference fit with the central hole 14, so that the rotating shaft 6 can be driven to rotate synchronously when the brush disc 1 swings.

In some embodiments, as shown in fig. 3, the rotating shaft 6 includes a first shaft section 60 and a second shaft section 61, where the inner diameter of the first shaft section 60 is smaller than the inner diameter of the second shaft section 61, a shaft shoulder is formed between the first shaft section 60 and the second shaft section 61, and the first shaft section 60 of the rotating shaft 6 is used to penetrate into the central hole 14 on the protruding portion 11 and collide with the second sheet 21 of the hardware sheet 2 through the shaft shoulder thereon, so as to press the second sheet 21 into the sink 12, and further fix the hardware sheet 2 on the protruding portion 11. The hardware 2 is fixed by the rotating shaft 6, which can prolong the service life of the toothbrush head and keep good cleaning effect.

Alternatively, the second sheet 21 of the metal sheet 2 may be provided with a through hole 24 coaxial with the central hole 14 of the protrusion 11, and the first shaft section 60 of the rotation shaft 6 is also disposed through the through hole 24 of the metal sheet 2.

The second shaft section 61 of the rotating shaft 6 of the present embodiment is used for rotationally connecting with the brush rod 3, a mounting hole is provided in the brush rod 3, and the second shaft section 61 of the rotating shaft 6 is inserted into the mounting hole and can rotate in the mounting hole. As shown in fig. 3, the metal shaft sleeve 7 is fixed in the mounting hole of the present embodiment, and the metal shaft sleeve 7 can be sleeved on the second shaft section 61 of the rotating shaft 6, so that friction between the rotating shaft 6 and the brush rod 3 can be reduced.

In order to avoid the separation of the brush plate 1 from the brush rod 3, as shown in fig. 1 and 3, the toothbrush head further comprises a safety pin 8, positioning holes are respectively formed in the outer peripheral walls of the protruding portion 11 of the brush plate 1 and the brush head end seat 30, when the brush plate 1 is placed on the brush rod 3, the positioning holes in the protruding portion 11 are coaxial with the positioning holes in the brush head end seat 30, and the safety pin 8 can be inserted into and fixed in the positioning holes in the brush rod 3 and the positioning holes in the brush head end seat 30 to prevent the brush plate 1 from falling out of the brush rod 3.

As shown in fig. 1, the ball head 40 of the present embodiment includes a ball 400 and a rod body 401 connected to the ball 400, the ball 400 is used to extend into a wrapping groove 23 formed by bending the first sheet 20, an insertion hole is provided at an end of the driving rod 4, and the rod body 401 is detachably inserted into the insertion hole, so as to facilitate installation and detachment of the ball head 40. Of course, the ball 40 may be integrally formed with the driving rod 4.

The ball head 40 and the hardware 2 of this embodiment are made of wear-resistant metal materials such as copper or stainless steel, so that the service life of the brush head can be further improved.

As shown in fig. 1, the toothbrush head of this embodiment further includes an inner plug 5, and an end of the brush rod 3 facing away from the brush head end seat 30 is open, and the driving rod 4 can be placed into the interior along the open end thereof, where the inner plug 5 extends into the driving rod 4 and is detachably connected with the open end of the driving rod 4, such as threaded connection, so as to avoid the driving rod 4 from falling out of the brush rod 3.

The embodiment of the utility model also provides a toothbrush assembly, which comprises a handle and a toothbrush head in any embodiment, wherein the handle is connected with one end of the brush rod 3 away from the toothbrush head end seat 30, and a driving mechanism is arranged in the handle and is in transmission connection with the driving rod 4 in the brush rod 3 so as to be used for driving the driving rod 4 and the brush disc 1 to swing synchronously.

The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.

Claims

1. Toothbrush head, it is including being brush-holder stud (3) and locating that the cavity set up in brush-holder stud (3) actuating lever (4), its characterized in that, toothbrush head still includes:

the brush disc (1) is rotationally arranged on the brush rod (3), one surface of the brush disc (1) is provided with brush hair (10), and the other surface of the brush disc (1) is provided with a protruding part (11) extending into the brush rod (3);

the hardware piece (2), it is fixed on bulge (11), hardware piece (2) include first lamellar body (20) at least, first lamellar body (20) are buckled and are formed parcel groove (23), bulb (40) of actuating lever (4) stretch into in parcel groove (23), actuating lever (4) can in proper order with two lateral walls that parcel groove (23) are relative conflict in order to drive brush dish (1) synchronous swing when swinging.

2. A toothbrush head according to claim 1, characterized in that the outer peripheral wall of the projection (11) is provided with a mounting groove (13), the first blade (20) extends into the mounting groove (13), and the outer peripheral wall of the first blade (20) abuts against the groove wall of the mounting groove (13).

3. A toothbrush head according to claim 2, characterized in that the mounting groove (13) extends through to the free end of the projection (11), the first blade (20) being slidable from the free end of the projection (11) into the mounting groove (13) in a direction approaching the brush plate (1).

4. A toothbrush head according to claim 3, characterized in that the hardware (2) further comprises a second blade (21) connected to the first blade (20), the second blade (21) being in abutment with the free end of the projection (11) and being able to interconnect to fix the hardware (2) to the projection (11) when the first blade (20) is slid into the mounting groove (13).

5. A toothbrush head according to claim 4, characterized in that the free end face of the projection (11) is provided with a countersink (12), the second sheet (21) being inserted into the countersink (12).

6. A toothbrush head according to claim 4, characterized in that the free end of the projection (11) is provided with a central hole (14); the toothbrush head further comprises a rotating shaft (6) arranged on the toothbrush disc (1), the rotating shaft (6) comprises a first shaft section (60) and a second shaft section (61), a shaft shoulder is arranged between the first shaft section (60) and the second shaft section (61), the second shaft section (61) is used for being rotationally connected with the toothbrush rod (3), and the first shaft section (60) is penetrated and fixed in a central hole (14) of the protruding portion (11) so as to be abutted with the second sheet body (21) through the shaft shoulder to fix the hardware sheet (2) on the protruding portion (11).

7. A toothbrush head according to claim 6, characterized in that the brush rod (3) is provided with a mounting hole, the second shaft section (61) of the rotating shaft (6) extends into the mounting hole, and the toothbrush head further comprises a metal sleeve (7) fixed in the mounting hole and sleeved on the second shaft section (61) of the rotating shaft (6).

8. A toothbrush head according to claim 4, characterized in that the first and second blades (20, 21) are of unitary construction.

9. A toothbrush head according to claim 1, characterized in that the ball head (40) comprises a ball body (400) and a rod body (401) connected with the ball body (400), the driving rod (4) is provided with an insertion hole, the rod body (401) is detachably inserted into the insertion hole, and the ball body (400) extends into the wrapping groove (23); and/or the ball head (40) is made of metal material.

10. A toothbrush assembly comprising a handle with a drive mechanism provided therein, characterized in that the toothbrush assembly further comprises a toothbrush head according to any one of the preceding claims 1-9, the handle being connected to the brush bar (3), the drive mechanism being connected to the drive bar (4) for driving the drive bar (4) in oscillation.