CN221307542U - Toothbrush head and toothbrush - Google Patents

Abstract

The application discloses a toothbrush head and a toothbrush, wherein the toothbrush head comprises a head, a neck and a bristle unit, the bristle unit comprises a first bristle group, a second bristle group and a third bristle group which are arranged in an extending way along the near-far end direction, the second bristle group and the third bristle group are respectively positioned at two sides of the first bristle group, the first bristle group comprises a plurality of first bristles, the second bristle group comprises a second bristle, the third bristle group comprises a third bristle, the first bristle, the second bristle and the third bristle are the same in material, the diameter of the first bristle is respectively larger than that of the second bristle and the third bristle, the diameter of the first bristle is in the range of 0.13 mm-0.18 mm, the diameter of the second bristle and the diameter of the third bristle are in the range of 0.1 mm-0.13 mm, the hardness of the first bristle group is larger than that of the second bristle group and the third bristle group, the middle bristle is formed to be harder, food residues and soft dirt on orthodontic brackets and archwires can be effectively cleaned, the food residues and soft dirt on the two sides can be effectively cleaned, and gum residues and soft dirt can not irritate the gum and the like.

Description

Toothbrush head and toothbrush

Technical Field

The application relates to the technical field of oral cavity cleaning appliances, in particular to a toothbrush head and a toothbrush.

Background

Toothbrushes are widely used in life as an oral cleaning implement. For orthodontic patients, because orthodontic braces (including orthodontic brackets and archwires) are required to be worn on teeth, when a common toothbrush is adopted for brushing teeth, or the bristles are too hard to contact with gums to stimulate the gums to cause bleeding and other discomforts; or the bristles are too soft to effectively clean food residues and soft dirt from orthodontic brackets and archwires.

Disclosure of Invention

The application provides a toothbrush head and a toothbrush. The toothbrush head can not stimulate gums to cause bleeding, but also can effectively clean residues and soft dirt on orthodontic brackets and archwires.

The technical scheme is as follows:

According to a first aspect of the embodiments of the present application, there is provided a toothbrush head, including a head, a neck, and a bristle unit, the head having a bearing surface and a back surface opposite to the bearing surface, the head further including a proximal end and a distal end, the neck being connected to the proximal end, the bristle unit being disposed on the bearing surface, the bristle unit including a first bristle group, a second bristle group and a third bristle group disposed on two sides of the first bristle group, respectively, the first bristle group extending in a proximal direction, the second bristle group extending in a proximal direction, the third bristle group extending in a proximal direction, the first bristle group including a plurality of first bristles, the second bristle group including a plurality of second bristles, the third bristle group including a plurality of third bristles, the first bristles, the second bristles and the third bristles being the same in material, the diameters of the first bristles being greater than the diameters of the second bristles and the third bristles, respectively, the diameters of the first bristles being in a range of 0.13mm to 0.13mm, and the diameters of the third bristles being in a range of 0.13mm to 0.13mm.

The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:

The brush hair unit includes the first brush hair group of arranging along near distal end direction extension, first brush hair group mainly used contacts orthodontic bracket and archwire in order to clean food residue and soft dirt, the brush hair unit still includes the second brush hair group and the third brush hair group that are located first brush hair group both sides respectively, the second brush hair group extends along near distal end direction and arranges, the third brush hair group extends along near distal end direction and arranges, consequently, the second brush hair group and the third brush hair group mainly used clean food residue and soft dirt of tooth and gum juncture, first brush hair group includes many first brush hair, the second brush hair group includes the second brush hair, the third brush hair group includes the third brush hair, first brush hair, the second brush hair is the same with the material of third brush hair, and the diameter of first brush hair is greater than the diameter of second brush hair and third brush hair respectively, the diameter range of first brush hair is 0.13mm ~ 0.18mm, under the same circumstances of brush hair material, the diameter of brush hair is bigger than hardness bigger than the second brush hair group and soft dirt, consequently, the second brush hair group is located the hardness of second brush hair group and soft dirt can not be more on the both sides of the positive and soft hair group and soft dirt, the soft hair can not be stimulated with the food residue and soft dirt, the soft hair group has formed on the both sides.

The technical scheme is further described as follows:

In one embodiment, the diameter of the first bristles ranges from 0.13mm to 0.134mm, from 0.134mm to 0.141mm, from 0.141mm to 0.157mm, from 0.157mm to 0.150mm, from 0.150mm to 0.170mm, or from 0.170mm to 0.18mm; and/or

The diameter range of the second bristle is 0.102 mm-0.125 mm, 0.125 mm-0.127 mm, 0.127 mm-0.128 mm or 0.128 mm-0.13 mm; and/or

The diameter of the third bristle ranges from 0.102mm to 0.125mm, from 0.125mm to 0.127mm, from 0.127mm to 0.128mm or from 0.128mm to 0.13mm.

In one embodiment, the first bristles have a diameter of 0.13mm, 0.134mm, 0.141mm, 0.157mm, 0.150mm, 0.170mm, 0.178mm, or 0.18mm; and/or

The diameter of the second bristle is 0.102mm, 0.125mm, 0.127mm, 0.128mm or 0.13mm; and/or

The diameter of the third bristle is 0.102mm, 0.125mm, 0.127mm, 0.128mm or 0.13mm.

In one embodiment, the diameter of the first bristles is 0.01mm to 0.08mm greater than the diameter of the second bristles; and/or

The diameter of the first bristle is 0.01 mm-0.08 mm larger than that of the third bristle.

In one embodiment, the first bristle group comprises a plurality of first bristle tufts spaced apart in a proximal-distal direction, the second bristle group comprises a plurality of second bristle tufts spaced apart in a proximal-distal direction, and the third bristle group comprises a plurality of third bristle tufts spaced apart in a proximal-distal direction, the first bristle tufts being spaced apart from the second bristle tufts and the third bristle tufts.

In one embodiment, the cross section of the first bristle tuft is long, and the first bristle tuft extends along the width direction of the bearing surface.

In one embodiment, the cross section of the second bristle tuft is elongated, the second bristle tuft extends in the proximal and distal direction, the cross section of the third bristle tuft is elongated, and the third bristle tuft extends in the proximal and distal direction.

In one embodiment, the free end of the first bristle tuft forms a first end face, the first end face having a first recess disposed therein, the first recess extending through the first bristle tuft in a proximal-distal direction.

In one embodiment, the first recess is a V-groove, a U-groove, or an arcuate groove.

In one embodiment, a second recess and a third recess are provided between the proximal end and the distal end, one of the second recesses being formed by at least two of the second tuft recesses together, and one of the third recesses being formed by at least two of the third tuft recesses together.

In one embodiment, the second bristle tuft has a height that is greater than the height of the first bristle tuft and the third bristle tuft has a height that is greater than the height of the first bristle tuft.

In one embodiment, the free end of the second bristle tuft forms a second end face, at least a part of the second end face is an inclined plane or an arc surface, the free end of the third bristle tuft forms a third end face, at least a part of the third end face is an inclined plane or an arc surface, and the inclined plane or the arc surface of the second end face and the inclined plane or the arc surface of the third end face are respectively inclined downwards towards the direction of the first bristle tuft; or alternatively

The free end of the second bristle cluster forms a second end face, the second end face is a stepped face, the height of the second end face, which is close to the side edge of the first bristle cluster, is lower than the height of the side edge, which is far away from the first bristle cluster, of the second end face, the free end of the third bristle cluster forms a third end face, and the height of the third end face, which is close to the side edge of the first bristle cluster, is lower than the height of the side edge, which is far away from the first bristle cluster, of the third end face.

In one embodiment, a first sewage draining seam is formed between the second bristle tufts at intervals, and the width of the first sewage draining seam ranges from 0.9mm to 1.3mm; or the width of the first sewage discharge seam ranges from 1.0mm to 1.2mm; and/or

A second sewage discharge seam is formed between the third bristle tufts at intervals, and the width of the second sewage discharge seam ranges from 0.9mm to 1.3mm; or the width of the second sewage discharge seam ranges from 1.0mm to 1.2mm.

A toothbrush comprising a handle and a brush head as claimed in any preceding claim, the neck of the brush head being detachably connected or fixedly connected or integrally formed with the handle.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic view of a toothbrush head in one embodiment;

FIG. 2 is a schematic illustration of the cooperation of the toothbrush head of FIG. 1 with an archwire;

FIG. 3 is a front elevational view of the toothbrush head of FIG. 1;

FIG. 4 is a schematic illustration of the cooperation of the toothbrush head of FIG. 3 with an archwire;

FIG. 5 is a schematic view of the toothbrush head of FIG. 1 from another perspective;

FIG. 6 is a schematic view of the use of the toothbrush head of FIG. 1;

Fig. 7 is another schematic view of the toothbrush head of fig. 1 in use.

Reference numerals illustrate:

100. A toothbrush head; 110. a head; 120. a neck; 130. a bristle unit; 111. a bearing surface; 112. a back surface; 113. a proximal end; 114. a distal end; 131. a first bristle group; 132. a second bristle set; 133. a third bristle group; 140. a first tuft of bristles; 150. a second tuft of bristles; 160. a third tuft of bristles; 141. a first end face; 142. a first concave portion; 151. a second concave portion; 161. a third recess; 152. a second end face; 162. a third end face; 170. a first sewage discharge slit; 180. a second sewage discharge seam; 191. a fourth tuft of bristles; 192. a fifth bristle tuft; 193. a thread clamping slot; 200. an archwire; 300. teeth; 400. and a bracket.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The application provides a toothbrush head 100, as shown in fig. 1 to 5, comprising a head 110, a neck 120 and a bristle unit 130, wherein the head 110 is provided with a bearing surface 111 and a back surface 112 which is arranged opposite to the bearing surface 111, the head 110 also comprises a proximal end 113 and a distal end 114, and the neck 120 is connected with the proximal end 113 of the head 110. For example, neck 120 may be integrally formed with proximal end 113 of head 110 and may be radiused in transition.

The bristle unit 130 is disposed on the carrying surface 111. The bristle unit 130 includes a first bristle group 131, a second bristle group 132 and a third bristle group 133 respectively disposed on two sides of the first bristle group 131, the first bristle group 131 extends in a proximal-distal direction, the second bristle group 132 extends in the proximal-distal direction, and the third bristle group 133 extends in the proximal-distal direction. The first bristle group 131 includes a plurality of first bristles, the second bristle group 132 includes a plurality of second bristles, the third bristle group 133 includes a plurality of third bristles, the first bristles, the second bristles and the third bristles are the same in material, the diameters of the first bristles are respectively larger than those of the second bristles and the third bristles, the diameter range of the first bristles is 0.13 mm-0.18 mm, and the diameter range of the second bristles and the diameter range of the third bristles are 0.1 mm-0.13 mm. In this embodiment, the materials of the first bristles, the second bristles and the third bristles may be one of PP (polypropylene) bristles, PBT (polybutylene terephthalate ) soft bristles, nylon (PA) bristles or PET (Polyethylene terephthalate ) composite sharpening wires.

The bristle unit 130 includes a first bristle group 131 extending in a proximal-distal direction, the first bristle group 131 mainly for contacting the orthodontic bracket 400 and the archwire 200 to clean food residues and soft scales, the bristle unit 130 further includes a second bristle group 132 and a third bristle group 133 respectively located at both sides of the first bristle group 131, the second bristle group 132 extends in the proximal-distal direction, and the third bristle group 133 extends in the proximal-distal direction, so that the second bristle group 132 and the third bristle group 133 mainly for cleaning food residues and soft scales at the junction of the teeth 300 and gums, the first bristle group 131 includes a plurality of first bristles, the second bristle group 132 includes a second bristle, the third bristle group 133 includes a third bristle, the first bristle, the second bristle and the third bristle are the same in material, and the diameters of the first bristle are greater than the diameters of the second bristle and the third bristle, respectively. Thus, the first bristle group 131 in the middle forms a center matrix, and the second bristle group 132 and the third bristle group 133 located at both sides form a gingiva protecting matrix.

The larger the diameter of the brush hair is, the larger the hardness is on the premise of the same material. The hardness of the first bristle group 131 positioned in the middle is greater than that of the second bristle group 132 and the third bristle group 133 positioned at the two sides, so that a middle-bristle matrix with harder middle bristle textures is formed, food residues and soft scales on the orthodontic bracket 400 and the archwire 200 can be effectively cleaned, the textures at the two sides are softer, a gum protection matrix is formed, the food residues and soft scales of the gum can be effectively cleaned, and discomfort such as bleeding of the gum can not be stimulated while the teeth 300 are cared for health. The diameter of the first bristles ranges from 0.13mm to 0.18mm, so that the first bristles are not too soft to provide a cleaning effect, nor too hard to cause damage to the brackets 400, archwire 200, and gums of the teeth 300. The diameter range of the second bristles and the third bristles is 0.1 mm-0.13 mm, so that the second bristles and the third bristles are not too soft to clean and not too hard to hurt gums.

Specifically, the diameter of the first bristle is 0.13 mm-0.134 mm, 0.134 mm-0.141 mm, 0.141 mm-0.157 mm, 0.157 mm-0.150 mm, 0.150 mm-0.170 mm or 0.170 mm-0.178 mm. For example, the diameter of the first bristles may be 0.13mm, 0.134mm, 0.141mm, 0.157mm, 0.150mm, 0.170mm, 0.178mm or 0.18mm.

The diameter of the second bristle is 0.102 mm-0.125 mm, 0.125 mm-0.127 mm, 0.127 mm-0.128 mm or 0.128 mm-0.13 mm. For example, the diameter of the second bristles is 0.102mm, 0.125mm, 0.127mm, 0.128mm or 0.152mm. The diameter of the third bristle is 0.102 mm-0.125 mm, 0.125 mm-0.127 mm, 0.127 mm-0.128 mm or 0.128 mm-0.13 mm. For example, the diameter of the third bristles is 0.102mm, 0.125mm, 0.127mm, 0.128mm or 0.13mm.

The diameter of the first bristles is always larger than the diameters of the second bristles and the third bristles, so that the first bristles are harder than the second bristles and the third bristles. For example, the diameter of the first bristles is 0.01 to 0.08mm larger than that of the second bristles, and the diameter of the first bristles is 0.01 to 0.08mm larger than that of the third bristles. The diameter of the second bristles may be equal to the diameter of the third bristles, and the diameter of the second bristles may not be equal to the diameter of the third bristles. In this embodiment, the second bristles are of equal diameter to the third bristles and are symmetrically distributed about the midline across the bearing surface 111 of the toothbrush head 100.

Referring to fig. 1 to 4, further, in the present embodiment, the first bristle group 131 includes a plurality of first bristle tufts 140 spaced apart in a proximal-distal direction, the second bristle group 132 includes a plurality of second bristle tufts 150 spaced apart in the proximal-distal direction, the third bristle group 133 includes a plurality of third bristle tufts 160 spaced apart in the proximal-distal direction, and the first bristle tufts 140 are spaced apart from the second bristle tufts 150 and the third bristle tufts 160.

For example, the bristle tufts may be attached to the bearing surface 111 of the head 110 using any technique now known or later discovered. Such techniques include, but are not limited to, stapling, anchor Free Tufting (AFT), in-mold tufting (IMT), pressure-temperature-time (PTt) anchor free tufting techniques, and the like. In the stapling technique, tufts of bristles are folded into a U-shape and staples are then used to secure the tufts of bristles within the tuft holes. In AFT technology, bristle tufts are inserted through holes in a head plate, and the ends of the tufts extending from the back 112 of the head plate are melted together to form a layer of bristle material adjacent the back surface of the head plate. This prevents the bristle tufts from being pulled back through the tuft holes. The head plate is then secured to the head 110 using ultrasonic welding, adhesive, or the like. In the PTt technique, the bristle filaments are arranged in tufts and then the individual tufts are fused together to form tufts having mushroom-shaped ends. The tufts having mushroom shaped ends are then inserted into the pre-cored holes of the head 110 of the toothbrush. Pressure and heat are then applied to the head 110 of the toothbrush, which self-reshapes the surface of the head 110 of the toothbrush to close the mushroom-shaped ends of the tufts, thereby firmly securing. The present application is not intended to be limited in particular by the manner in which the bristle unit 130 is coupled to the head 110. The bristle unit 130 can extend perpendicularly from the head 110 or at an angle relative to the head 110, or a combination of both, as desired.

Of course, in other embodiments, the first bristle group 131 may not be clustered, the first bristle group 131 may include a plurality of uniformly distributed first bristles, the second bristle group 132 may include a plurality of uniformly distributed second bristles, and the third bristle group 133 may include a plurality of uniformly distributed third bristles. Although there is a certain gap between the first bristle group 131 and the second bristle group 132 and the third bristle group 133, the gap is not as large as that shown in fig. 1 to 4.

Referring to fig. 3 and 4, in the present embodiment, the cross section of the first bristle tuft 140 is elongated, and the first bristle tuft 140 extends along the width direction of the bearing surface 111. As shown in fig. 3 and 4, the width direction of the bearing surface 111 is the left-right extending direction of the bearing surface 111. In this manner, the effective contact area of the first bristle tuft 140 with the archwire 200 increases, which may improve the efficiency of cleaning the archwire 200. It should be noted that, the elongated shape mentioned herein includes, but is not limited to, a regular oval shape (as shown in fig. 3 and 4), a rectangular shape, an arc shape, etc., and may also include an irregular elongated shape.

Further, the cross section of the second bristle tuft 150 is elongated, the second bristle tuft 150 extends in the proximal-distal direction, the cross section of the third bristle tuft 160 is elongated, and the third bristle tuft 160 extends in the proximal-distal direction. In this manner, the second bristle tuft 150 and the third bristle tuft 160 may increase the effective contact area with the teeth 300, improving the efficiency of cleaning the gums of the teeth 300. It should be noted that, the elongated shape mentioned herein includes, but is not limited to, a regular oval shape (as shown in fig. 3 and 4), a rectangular shape, an arc shape, etc., and may also include an irregular elongated shape.

Referring to fig. 1 to 5 again, in the present embodiment, the free end of the first bristle tuft 140 forms a first end surface 141, and a first recess 142 is disposed on the first end surface 141, and the first recess 142 penetrates the first bristle tuft 140 along the proximal and distal ends. The first recess 142 is primarily for receiving the archwire 200 and the bracket 400 such that the first bristle tuft 140 more closely conforms to the archwire 200 and the bracket 400. For example, in the present embodiment, the first recess 142 is a V-shaped groove that facilitates conforming the bracket 400 to the archwire 200 for improved cleaning efficiency. Of course, in other embodiments, the first recess 142 may be a U-shaped groove, an arc-shaped groove, or the like.

A second recess 151 and a third recess 161 are disposed between the proximal end 113 and the distal end 114, with a second recess 151 being formed by the depression of at least two second bristle tufts 150 and a third recess 161 being formed by the depression of at least two third bristle tufts 160. The second concave portion 151 and the third concave portion 161 are mainly used for forming an avoidance space for avoiding the bracket 400, so that the bracket 400 is not loosened due to excessive force applied to the bracket 400 in the up-down tooth brushing process, and the second concave portion 151 and the third concave portion 161 can be attached to the bracket 400 more closely, so that the cleaning efficiency is improved. For example, in the present embodiment, the number of the second bristle tufts 150 is four, the number of the second recesses 151 is one, and the second recesses 151 are collectively formed by recessing the middle adjacent two second bristle tufts 150. The number of the third bristle tufts 160 is four, the number of the third recesses 161 is one, and the third recesses 161 are collectively formed by recessing the middle adjacent two of the second bristle tufts 150. Of course, in other embodiments, the number of the second recesses 151 may be two or more, and the number of the third recesses 161 may be two or more.

Further, the second bristle tuft 150 has a height greater than the height of the first bristle tuft 140, and the third bristle tuft 160 has a height greater than the height of the first bristle tuft 140. Since the centrally located first bristle tuft 140 is primarily used to clean the brackets 400 and archwires 200, the height of the first bristle tuft 140 should not be too high when designed to interfere too much with the brackets 400 and archwires 200, resulting in excessive forces being applied to the brackets 400 and archwires 200, while the second and third bristles on either side of the first bristle tuft 140 are used to contact the teeth 300, and therefore the height of the second and third bristle tufts 150, 160 should be designed to be higher than the height of the first bristle tuft 140 to effectively clean the teeth 300.

Further, the free end of the second bristle cluster 150 forms a second end surface 152, at least a portion of the second end surface 152 is an inclined surface or an arc surface, the free end of the third bristle cluster 160 forms a third end surface 162, at least a portion of the third end surface 162 is an inclined surface or an arc surface, and the inclined surface or the arc surface of the second end surface 152 and the inclined surface or the arc surface of the third end surface 162 are respectively inclined downward toward the direction of the first bristle cluster 140. Specifically, in the present embodiment, the second end surface 152 is an inclined surface, the third end surface 162 is an inclined surface, and the inclined surfaces of the second end surface 152 and the third end surface 162 are inclined downward toward the direction of the first bristle tuft 140, respectively, so that a guide surface can be formed, and in addition, the contact area between the second end surface 152 and the third end surface 162 and the teeth and gums can be increased, thereby improving the cleaning efficiency of the teeth 300 and gums. Of course, in other embodiments, the second end surface 152 may be a cambered surface, and the third end surface 162 may be a cambered surface. Or a portion of the second end surface 152 may be a bevel or a curved surface, another portion may be a flat surface, and a portion of the third end surface 162 may be a bevel or a curved surface, another portion may be a flat surface. Alternatively, in other embodiments, the second end 152 is a stepped surface, the side of the second end 152 adjacent to the first tuft 140 is lower than the side distal from the first tuft 140, the third end 162 is also a stepped surface, and the side of the third end 162 adjacent to the first tuft 140 is lower than the side distal from the first tuft 140.

Further, the second bristle tufts 150 are spaced apart to form a first drain slit 170, and the first drain slit 170 has a width ranging from 0.9mm to 1.3mm. Or the width of the first drain slit 170 ranges from 1.0mm to 1.2mm. For example, the width of the first drain slit 170 may be 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, etc. The third bristle tufts 160 are spaced apart to form a second discharge gap 180, and the second discharge gap 180 may have a width ranging from 0.9mm to 1.3mm. Or the width of the second drain slit 180 ranges from 1.0mm to 1.2mm. For example, the width of the second drain slit 180 may be 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, etc. Dirt that falls off from the archwire and brackets and also from the teeth and gums is discharged from the first and second blowdown slots.

Further, the bristle unit 130 includes a fourth bristle cluster 191 and a fifth bristle cluster 192, the fourth bristle cluster 191 and the fifth bristle cluster 192 are located at the distal end 114 of the head 110, the fourth bristle cluster 191 and the fifth bristle cluster 192 are located at the distal end 114 more than the first bristle cluster 140, a wire clamping gap 193 is formed between the fourth bristle cluster 191 and the fifth bristle cluster 192, the wire clamping gap 193 penetrates in the proximal and distal direction, the wire clamping gap 193 reserves a position for the archwire 200, and the fourth bristle cluster 191 and the fifth bristle cluster 192 are used for clamping the archwire 200.

Referring to fig. 6 and 7 together, since the fourth bristle cluster 191 and the fifth bristle cluster 192 are located at the distal end 114 of the head 110 and on the bearing surface 111, the fourth bristle cluster 191 and the fifth bristle cluster 192 are located at the more distal end 114 than the first bristle cluster 140, a wire clamping gap 193 is formed between the fourth bristle cluster 191 and the fifth bristle cluster 192, the wire clamping gap 193 penetrates in the proximal distal direction, the wire clamping gap 193 is used for reserving a position for the archwire 200, the fourth bristle cluster 191 and the fifth bristle cluster 192 are used for clamping and cleaning the archwire 200, and therefore, when the toothbrush head 100 is used for cleaning the teeth 300 adhered with the orthodontic bracket 400, the bristle unit 130 is contacted with the tooth surface, the archwire 200 is clamped and wrapped in the wire clamping gap 193, the fourth bristle cluster 191 and the fifth bristle cluster 192 are uniformly distributed on both sides of the archwire 200, dirt on the archwire 200 can be effectively cleaned, and food residues can be avoided.

The application also provides a toothbrush comprising a handle and the toothbrush head 100 of any of the above embodiments, wherein the neck 120 of the toothbrush head 100 is integrally connected with the handle. The toothbrush may be a manual toothbrush or an electric toothbrush, and is not limited thereto. Of course, in other embodiments, neck 120 of head 100 may be removably attached to the handle, fixedly attached, etc.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first," "second," etc. can include at least one such feature, either explicitly or implicitly. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.

Claims (14)

1. The toothbrush head is characterized by comprising a head, a neck and a bristle unit, wherein the head is provided with a bearing surface and a back surface which is opposite to the bearing surface, the head further comprises a proximal end and a distal end, the neck is connected with the proximal end of the head, the bristle unit is arranged on the bearing surface, the bristle unit comprises a first bristle group, a second bristle group and a third bristle group which are respectively positioned on two sides of the first bristle group, the first bristle group extends and is distributed along the proximal end direction, the second bristle group extends and is distributed along the proximal end direction, the third bristle group extends and is distributed along the proximal end direction, the first bristle group comprises a plurality of first bristles, the second bristle group comprises a plurality of second bristles, the third bristle group comprises a plurality of third bristles, the first bristles, the second bristles and the third bristles are made of the same materials, the diameters of the first bristles are respectively larger than those of the second bristles and the third bristles, the diameters of the first bristles are in the range of 0.13mm to 0.13mm, and the diameters of the first bristles are in the range of 0.13mm to 0.13mm.

2. The toothbrush head according to claim 1 wherein the first bristles have a diameter in the range of 0.13mm to 0.134mm, 0.134mm to 0.141mm, 0.141mm to 0.157mm, 0.157mm to 0.150mm, 0.150mm to 0.170mm, or 0.170mm to 0.18mm; and/or

The diameter range of the second bristle is 0.102 mm-0.125 mm, 0.125 mm-0.127 mm, 0.127 mm-0.128 mm or 0.128 mm-0.13 mm; and/or

The diameter of the third bristle ranges from 0.102mm to 0.125mm, from 0.125mm to 0.127mm, from 0.127mm to 0.128mm or from 0.128mm to 0.13mm.

3. The toothbrush head of claim 1, wherein the first bristles have a diameter of 0.13mm, 0.134mm, 0.141mm, 0.157mm, 0.150mm, 0.170mm, 0.178mm, or 0.18mm; and/or

The diameter of the second bristle is 0.102mm, 0.125mm, 0.127mm, 0.128mm or 0.13mm; and/or

The diameter of the third bristle is 0.102mm, 0.125mm, 0.127mm, 0.128mm or 0.13mm.

4. The toothbrush head of claim 1, wherein the diameter of the first bristles is 0.01mm to 0.08mm greater than the diameter of the second bristles; and/or

The diameter of the first bristle is 0.01 mm-0.08 mm larger than that of the third bristle.

5. The toothbrush head according to any one of claims 1 to 4 wherein the first bristle group comprises a plurality of first bristle tufts spaced apart in a proximal-distal direction, the second bristle group comprises a plurality of second bristle tufts spaced apart in a proximal-distal direction, and the third bristle group comprises a plurality of third bristle tufts spaced apart in a proximal-distal direction, the first bristle tufts being spaced apart from the second bristle tufts and the third bristle tufts.

6. The toothbrush head of claim 5, wherein the first tuft of bristles is elongated in cross-section and extends along a width of the bearing surface.

7. The toothbrush head of claim 5, wherein the second bristle tuft is elongated in cross-section, the second bristle tuft extends in a proximal-distal direction, the third bristle tuft is elongated in cross-section, and the third bristle tuft extends in a proximal-distal direction.

8. The toothbrush head of claim 5, wherein the free ends of the first bristle tufts form a first end face having a first recess disposed therein, the first recess extending through the first bristle tuft in a proximal-distal direction.

9. The toothbrush head of claim 8, wherein the first recess is a V-groove, a U-groove, or an arcuate groove.

10. The toothbrush head of claim 5 wherein a second recess and a third recess are disposed between said proximal end and said distal end, one of said second recesses being formed by at least two of said second tuft recesses and one of said third recesses being formed by at least two of said third tuft recesses.

11. The toothbrush head of claim 5 wherein the second bristle tuft has a height that is greater than the height of the first bristle tuft and the third bristle tuft has a height that is greater than the height of the first bristle tuft.

12. The toothbrush head of claim 5, wherein the free ends of the second bristle tufts form a second end face, at least a portion of the second end face being a chamfer or an arcuate face, the free ends of the third bristle tufts form a third end face, at least a portion of the third end face being a chamfer or an arcuate face, the chamfer or arcuate face of the second end face and the chamfer or arcuate face of the third end face being respectively inclined downwardly in the direction of the first bristle tuft; or alternatively

The free end of the second bristle cluster forms a second end face, the second end face is a stepped face, the height of the second end face, which is close to the side edge of the first bristle cluster, is lower than the height of the side edge, which is far away from the first bristle cluster, of the second end face, the free end of the third bristle cluster forms a third end face, and the height of the third end face, which is close to the side edge of the first bristle cluster, is lower than the height of the side edge, which is far away from the first bristle cluster, of the third end face.

13. The toothbrush head of claim 5, wherein the second bristle tufts are spaced apart to form a first blow-down gap, the first blow-down gap having a width in the range of 0.9mm to 1.3mm; or the width of the first sewage discharge seam ranges from 1.0mm to 1.2mm; and/or

A second sewage discharge seam is formed between the third bristle tufts at intervals, and the width of the second sewage discharge seam ranges from 0.9mm to 1.3mm; or the width of the second sewage discharge seam ranges from 1.0mm to 1.2mm.

14. A toothbrush comprising a handle and a head as claimed in any one of claims 1 to 13, the neck of the head being detachably connected or fixedly connected or integrally formed with the handle.