CN219557624U - Toothbrush head - Google Patents

Abstract

The utility model provides a toothbrush head, which comprises a bristle assembly and a toothbrush head body which are connected with each other, wherein bristles are arranged on the bristle assembly, the bristle assembly forms a fixed bristle area and a free bristle area, and the elasticity of the free bristle area is larger than that of the fixed bristle area. According to the toothbrush head provided by the utility model, the fixed bristle area and the free bristle area are formed through the bristle assembly, so that one part of bristles is large in elasticity and softer, and the other part of bristles is harder, different dirt can be cleaned, the cleaning effect can be obviously improved, and the user experience can be improved.

Description

Toothbrush head

Technical Field

The utility model relates to the technical field of oral cleaning products, in particular to a toothbrush head.

Background

The electric toothbrush on the market at present takes an acoustic wave motor type as a main stream, and the acoustic wave electric toothbrush is deeply favored by consumers with strong vibration and high cleanliness. The acoustic wave electric toothbrush generally comprises a toothbrush head inserted on a metal rod, and vibration is transmitted to the toothbrush head by the metal rod, so that the toothbrush head generates acoustic wave vibration to realize acoustic wave cleaning of the toothbrush head.

At present, some bristles of the existing toothbrush head are arranged in an oval shape, and some bristles are arranged in a rectangular shape, but all bristles are planted in the same mode, the elasticity of each bundle of bristles is the same, so that the cleaning effect is poor, and the user experience is poor.

Disclosure of Invention

The utility model aims to provide a toothbrush head capable of improving cleaning effect.

The utility model provides a toothbrush head, which comprises a bristle assembly and a toothbrush head body which are connected with each other, wherein bristles are arranged on the bristle assembly, the bristle assembly forms a fixed bristle area and a free bristle area, and the elasticity of the free bristle area is larger than that of the fixed bristle area.

Further, the fixed bristle field is located at a central location of the bristle assembly, and the free bristle field is disposed around the periphery of the fixed bristle field.

Further, the toothbrush head structure further comprises a connecting piece, one end of the connecting piece is located in the bristle assembly, and the other end of the connecting piece extends into the toothbrush head body.

Further, the bristle assembly further comprises a reinforcing part, and two sides of the reinforcing part are respectively fixed with the bristles and the connecting piece.

Further, the connecting piece is a metal elastic piece, and the metal elastic piece is only fixed with the fixed bristle area, so that the bristle assembly forms the fixed bristle area and the free bristle area.

Further, the metal spring plate comprises an upper part and a lower part, wherein the lower part is fixed on the toothbrush head body, the upper part is fixed on the bristle assembly, and the shape of the upper part corresponds to the central part of the bristle assembly, so that the central part of the bristle assembly forms a fixed bristle area.

Further, the lower end of the lower part is provided with a toothbrush head body fixing hole for allowing molten plastic to pass through when the toothbrush head body is subjected to injection molding or allowing pins to pass through after the plastic is molded.

Further, the upper end of the lower portion is provided with a bristle fixing hole for fixing bristles.

Further, the back of the metal spring plate is also covered with a soft cushion part.

According to the toothbrush head provided by the utility model, the fixed bristle area and the free bristle area are formed through the bristle assembly, so that one part of bristles is large in elasticity and softer, and the other part of bristles is harder, different dirt can be cleaned, the cleaning effect can be obviously improved, and the user experience can be improved.

Drawings

Fig. 1 is a schematic view of an embodiment of a toothbrush head and method of manufacture of the present utility model.

Fig. 2 is a schematic cross-sectional view of the toothbrush head structure of fig. 1.

Fig. 3 is a schematic front view of the toothbrush head structure of fig. 1.

Fig. 4 is another schematic front view of the toothbrush head structure of fig. 1.

Fig. 5 is a schematic view of another embodiment of a metal spring in a toothbrush head according to the utility model.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms upper, lower, left, right, front, rear, top, bottom and the like (if any) in the description and in the claims are used for descriptive purposes and not necessarily for describing relative positions of structures in the figures and in describing relative positions of structures. It should be understood that the use of directional terms should not be construed to limit the scope of the utility model as claimed.

As shown in fig. 1 to 4, in the embodiment of the present utility model, the brush head includes a bristle sub-assembly 1, a brush head body 2, a metal dome 31, and a cushion portion 4. One end of the metal spring plate 31 is fixed on the brush hair component 1, and the other end of the metal spring plate 31 extends into the toothbrush head body 2 and serves as a connecting piece to enable the brush hair component 1 and the toothbrush head body 2 to be connected with each other. In other embodiments, the connecting piece can also adopt other structures besides the metal elastic piece, but the metal elastic piece can be firmer and thinner and is easy to process.

The soft pad part 4 is mainly arranged on the back of the metal elastic sheet 31 to improve comfort and touch feeling of the inlet when the toothbrush head is used, and the metal elastic sheet 31 is coated at the same time, so that the toothbrush head is more attractive and firm.

The bristle sub-assembly 1 is provided with a plurality of bristles 11, the plurality of bristles 11 comprising a central bristle 111 and a plurality of outer ring bristles 112 surrounding the central bristle 111 and connected to the central bristle 111. In this embodiment, the bristle sub-assembly 1 further includes a reinforcing member 12, wherein the reinforcing member 12 is formed by injection molding of hard plastic, and two sides of the reinforcing member are respectively fixed with the bristles 11 and the metal spring plate 31 to improve the overall strength of the bristle sub-assembly 1. The reinforcing member 12 has a shape corresponding to that of the bristles 11 and also includes a central portion 121 and a plurality of peripheral portions 122 connected to each other, and each of the central portion 121 and the peripheral portions 122 is provided with a through hole for the corresponding outer ring of bristles 112 to pass therethrough.

In this embodiment, the metal spring 31 is formed as a single piece at one end of the bristle sub-assembly, but is only fixed to the central portion of the bristle sub-assembly 1, i.e., only the central bristles (in this case, the outer bristles are generally fixed by the reinforcing member 12). Thus, after the assembly, the metal spring plate 31 forms a fixed bristle area 10A (as shown in fig. 3) at the central portion of the bristle assembly 1, and the outer ring bristles form a free bristle area 10B with higher elasticity (as shown in fig. 4), so that the toothbrush can brush the small and easy-to-clean area between teeth by using the free bristle area 10B first, and then brush the difficult-to-clean area between teeth by using the fixed bristle area. Of course, in other embodiments, the fixed bristle field 10A is not limited to the central portion, but may be located elsewhere.

Specifically, the reinforcing member 12 has a shape corresponding to the bristles 11 and includes a central portion 121 and a plurality of peripheral portions 122 connected to each other, and each of the central portion 121 and the peripheral portions 122 is provided with a through hole through which the corresponding outer ring of bristles 112 passes. The metal spring 31 includes an upper portion and a lower portion. The lower part is in a strip shape, the lower part of the toothbrush head fixing hole is fixed on the toothbrush head body 2, the lower end of the toothbrush head fixing hole is provided with a toothbrush head body fixing hole 311 for allowing molten plastic to pass through or pins to pass through after being molded in an injection molding mode with the toothbrush head body, so that the toothbrush head fixing hole is conveniently fixed with the toothbrush head body 2, and the upper end of the toothbrush head fixing hole is provided with a bristle fixing hole 312 for fixing bristles to fix the bristles, so that the toothbrush head fixing hole is used as a part of a fixed bristle area 10A. The upper part is fixed in the bristle sub-assembly 1 and has an oval shape corresponding to the central part of the reinforcing member 12/bristle sub-assembly 1, so that the central part of the bristle sub-assembly 1 forms a fixed bristle field 10A.

In other embodiments, the metal spring plate may be designed into other shapes, and as shown in the figure, the end of the metal spring plate 32 located in the bristle sub-assembly is leaf-shaped, which is different from the first embodiment in that it includes a middle portion 321 and a plurality of single hole structures 323 located at two sides of the middle portion 321 and each having one bristle fixing hole 322. At this time, the bristle sub-area corresponding to the middle portion 321 may form a fixed bristle area, and the bristle sub-area corresponding to the single hole structure 323 may form a free bristle area.

As shown in fig. 1, the method for manufacturing the toothbrush head includes: placing the metal elastic sheet 31 in a mould to be injection-molded with hard plastic to form the reinforcing part 12, wherein the metal elastic sheet 31 is only adhered and fixed with the central part of the reinforcing part 12; the bristles 11 are respectively planted in the through holes of the reinforcing part 12, and the bristles 11 are fixed to the reinforcing part 12 by hot melting; placing the formed bristle assembly 1, the reinforcing part 12 and the metal elastic sheet 31 in a mold for injection molding of hard plastic to form a toothbrush head body 2; the assembly formed after the above steps is placed in a mold to be injection-molded with soft plastic (soft material part) so that the back of the metal elastic sheet forms the soft cushion part 4.

The foregoing is merely illustrative embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present utility model, and the utility model should be covered. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (9)

1. The toothbrush head is characterized by comprising a bristle assembly (1) and a toothbrush head body (2) which are connected with each other, wherein bristles (11) are arranged on the bristle assembly (1), the bristle assembly (1) forms a fixed bristle area (10A) and a free bristle area (10B), and the elasticity of the free bristle area (10B) is larger than that of the fixed bristle area (10A).

2. The toothbrush head according to claim 1, characterized in that the fixed bristle field (10A) is located in a central position of the bristle assembly (1), the free bristle field (10B) being arranged around the periphery of the fixed bristle field (10A).

3. The toothbrush head according to claim 1, characterized in that it further comprises a connecting piece, one end of which is located in the bristle sub-assembly (1), the other end of which extends into the toothbrush head body (2).

4. The toothbrush head according to claim 1, characterized in that the bristle sub-assembly (1) further comprises a stiffening element (12), both sides of the stiffening element (12) being fastened to the bristles (11) and the connecting element, respectively.

5. A toothbrush head according to claim 3, characterized in that the connecting element is a metal spring (31), the metal spring (31) being fixed only to the fixed bristle field (10A), so that the bristle sub-assembly (1) forms a fixed bristle field (10A) and a free bristle field (10B).

6. A toothbrush head according to claim 5, characterized in that the metal spring comprises an upper part and a lower part, the lower part being fixed to the toothbrush head body (2), the upper part being fixed to the bristle package (1) in a shape corresponding to the central part of the bristle package (1), such that the central part of the bristle package (1) forms a stationary bristle area (10A).

7. A toothbrush head according to claim 6, characterized in that the lower end of the lower part is provided with a toothbrush head body fixing hole (311) for passing through molten plastic or pins after molding in an injection molding with the toothbrush head body.

8. The toothbrush head according to claim 6, wherein the lower upper end is provided with bristle fixing holes (312) for fixing bristles.

9. A toothbrush head according to claim 5, characterized in that the back of the metal dome is also covered with a soft pad portion (4).