CN219537735U - Toothbrush head and toothbrush - Google Patents

Abstract

The utility model relates to the field of oral cleaning, and provides a toothbrush head, which comprises: the brush head comprises a brush head body, wherein at least one surface of the brush head body is provided with a bristle planting area; the first bristle group is arranged in the bristle planting area and surrounds a cleaning ring suitable for cleaning the periphery of teeth; the second bristle group is arranged in the bristle planting area, and at least part of the second bristle group is positioned in the cleaning ring; one side of the first bristle group and one side of the second bristle group, which are far away from the brush head body, form a cleaning surface, and the cleaning surface is wave-shaped. The first bristle groups and the second bristle groups are arranged on the surface of the brush head body in a staggered manner, the first bristle groups are surrounded into a cleaning ring shape which is convenient for cleaning the periphery of teeth, and the second bristle groups are arranged in the cleaning ring so as to effectively clean the occlusal surfaces of the teeth; the cleaning surfaces of the first bristle group and the second bristle group, which are in contact with teeth, are designed into waveforms, and the second bristle group is arranged at the wave crest so as to clean gaps between teeth and care gums deeply, thereby achieving the purpose of cleaning teeth efficiently.

Description

Toothbrush head and toothbrush

Technical Field

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

Background

In the daily use of the electric toothbrush, when the electric toothbrush stretches into the mouth to brush teeth, as the material of the toothbrush head is plastic with high hardness and the toothbrush head is in a high-frequency vibration state, the back of the toothbrush head can generate large impact force on teeth when touching the teeth and generate large sound at the same time, and poor experience is generated, the design of the toothbrush head is particularly important, clinically, the parts which are not easy to clean in place are the cheek side of the teeth of the upper jaw 678, the lingual side of the teeth of the lower jaw 678 and the lingual side of the lower anterior teeth, and more users cannot deeply clean the teeth of the lower jaw 678, so that the caries prevalence of the parts is very high.

Also, the unreasonable brush head design may cause pain to gums or teeth with the use of the electric toothbrush for loose or sensitive teeth, thereby causing fear of mind to the user when brushing teeth with the electric toothbrush, even causing abandonment of the user, resulting in continuous better cleaning of the teeth, further promoting loosening and allergic symptoms caused by bacteria or residues, and resulting in vicious circle.

The brush hair of the toothbrush in the market at present has poor effect of deeply cleaning the tooth gaps or damages the gum after long-time use, and the brush hair can not be well matched with the tooth gaps, so that the requirement of a user on efficiently cleaning the teeth can not be met.

Disclosure of Invention

The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the utility model provides the toothbrush head, the first bristle groups and the second bristle groups are arranged on the surface of the toothbrush head body in a staggered way, the first bristle groups are surrounded into a cleaning ring shape which is convenient for cleaning the periphery of teeth, and the second bristle groups are arranged in the cleaning ring so as to effectively clean the occlusal surfaces of the teeth; the cleaning surfaces of the first bristle group and the second bristle group, which are in contact with teeth, are designed into waveforms, and the second bristle group is arranged at the wave crest so as to clean gaps between teeth and care gums deeply, thereby achieving the purpose of cleaning teeth efficiently.

The utility model also provides a toothbrush.

A toothbrush head according to an embodiment of the first aspect of the utility model comprises:

the brush head comprises a brush head body, wherein at least one surface of the brush head body is provided with a bristle planting area;

the first bristle group is arranged in the bristle planting area, and the first bristle group surrounds a cleaning ring suitable for cleaning the periphery of teeth;

the second bristle group is arranged in the bristle planting area, and at least part of the second bristle group is positioned in the cleaning ring;

the brush head comprises a brush head body, a first bristle group and a second bristle group, wherein one side of the brush head body, far away from the first bristle group, forms a cleaning surface, the cleaning surface is in a waveform, the cleaning surface comprises sub cleaning surfaces positioned at two ends of the waveform and an arc surface positioned in the middle of the waveform, the junction of the sub cleaning surfaces and the arc surface forms a trough of the waveform, and the arc surface is provided with a crest of the waveform.

According to the toothbrush head provided by the embodiment of the utility model, the first bristle groups and the second bristle groups are arranged on the surface of the toothbrush head body in a staggered manner, the first bristle groups are surrounded into the shape of the cleaning ring which is convenient for cleaning the periphery of teeth, and the second bristle groups are arranged in the cleaning ring so as to effectively clean the occlusal surfaces of the teeth; the cleaning surfaces of the first bristle group and the second bristle group, which are in contact with teeth, are designed into waveforms, and the second bristle group is arranged at the wave crest so as to clean gaps between teeth and care gums deeply, thereby achieving the purpose of cleaning teeth efficiently.

According to one embodiment of the utility model, one end of the brush head body, which is away from the handle, is provided with a head, the head is provided with two opposite side surfaces, an included angle theta is formed between the two side surfaces, the theta is between 40 and 60 degrees, and a transition surface is arranged between the two side surfaces.

According to one embodiment of the utility model, the orthographic projection of the end head along the direction vertical to the surface of the brush head body is in an isosceles trapezoid shape, and two waist lines of the isosceles trapezoid extend to form the included angle theta.

According to one embodiment of the utility model, the first bristle group comprises a plurality of first bristle bundles having rounded bristle filaments and the second bristle group comprises a plurality of second bristle bundles having pointed bristle filaments.

According to one embodiment of the present utility model, the bristle planting area is internally provided with a plurality of first bristle planting grooves and a plurality of second bristle planting grooves, wherein the first bristle planting grooves are in an oblong shape and are suitable for fixing the first bristle bundles, and the second bristle planting grooves are in a round shape and are suitable for fixing the second bristle bundles.

According to one embodiment of the utility model, the cleaning ring comprises a plurality of sub-cleaning rings distributed along the length direction of the brush head body, the sub-cleaning rings are suitable for cleaning the periphery of a single tooth, and the plurality of second bristle bundles arranged in the sub-cleaning rings are suitable for cleaning the occlusal surfaces of the tooth.

According to an embodiment of the utility model, the second bristle bundles are arranged between adjacent sub-cleaning rings and/or at the edges of the sub-cleaning rings, which second bristle bundles are adapted for cleaning the teeth crevices.

According to one embodiment of the utility model, the height of the first and second bristle bundles is between 11-12 mm; the diameter range of the rounding brush wires in the first bristle bundle is 0.12mm-0.16mm, and the diameter range of the sharpening brush wires in the second bristle group is 0.12mm-0.16mm.

According to one embodiment of the utility model, the sub-cleaning surfaces (1041) are planes, an included angle between the two planes is between 140 and 145 degrees, an included angle between the sub-cleaning surfaces and a direction perpendicular to the brush head body is between 65 and 75 degrees, and a distance between two wave troughs formed between the two sub-cleaning surfaces and adjacent cambered surfaces is between 10.5 and 11.5 mm; and/or the number of the groups of groups,

the thickness of the brush head body is between 2 and 4 mm.

The toothbrush according to the second aspect of the utility model comprises a toothbrush handle and the toothbrush head according to the embodiment, wherein the toothbrush head body is detachably connected with the toothbrush handle.

The above technical solutions in the embodiments of the present utility model have at least one of the following technical effects:

furthermore, the first bristle groups and the second bristle groups are arranged on the surface of the brush head body in a staggered manner, the first bristle groups are surrounded into a cleaning ring shape which is convenient for cleaning the periphery of teeth, and the second bristle groups are arranged in the cleaning ring so as to effectively clean the occlusal surfaces of the teeth; the cleaning surfaces of the first bristle group and the second bristle group, which are in contact with teeth, are designed into waveforms, and the second bristle group is arranged at the wave crest so as to clean gaps between teeth and care gums deeply, thereby achieving the purpose of cleaning teeth efficiently.

Further, by being used in combination with the brush head in the above embodiment, a better cleaning effect of teeth can be achieved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic front view of a toothbrush head provided by the present utility model;

FIG. 2 is a schematic side view of a toothbrush head provided by the present utility model;

FIG. 3 is a schematic view of the structure of a brush head body (sub-cleaning ring) according to the present utility model;

FIG. 4 is a schematic view of an arrangement of first and second bristle sets according to the present utility model;

fig. 5 is a schematic structural view of a first bristle set and a second bristle set according to the present utility model;

FIG. 6 is a schematic view of a third arrangement of first and second bristle sets according to the present utility model;

fig. 7 is a schematic structural view of a cleaning surface of a brush head body according to the present utility model.

Reference numerals:

101. a brush head body; 1011. a first hair planting groove; 1012. a second hair planting groove; 1013. a side surface; 1014. a transition surface; 102. a first bristle group; 103. a second bristle set; 104. a cleaning surface; 1041. a sub-cleaning surface; 1042. a cambered surface; 105. a sub-cleaning ring.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The first aspect of the present exemplary embodiment provides a toothbrush head that may be mounted on a conventional toothbrush handle, or may be mounted on an electric toothbrush handle, and may be detachably connected to the toothbrush handle, so as to facilitate timely replacement of the toothbrush head after it has worn. As shown in fig. 1 and 2, the toothbrush head in this example may include a head body 101, a first bristle group 102, and a second bristle group 103.

At least one surface of the brush head body 101 is configured with a bristle planting area; the first bristle group 102 is arranged in the bristle planting area, and the first bristle group 102 encloses a cleaning ring suitable for cleaning the periphery of teeth; the second bristle group 103 is arranged in the bristle planting area, and at least part of the second bristle group 103 is positioned in the cleaning ring; one side of the first bristle group 102 and the second bristle group 103, which is far away from the brush head body 101, forms a cleaning surface 104, the cleaning surface 104 is in a waveform, the cleaning surface 104 comprises sub-cleaning surfaces 1041 positioned at two ends of the waveform and an arc surface 1042 positioned in the middle of the waveform, a wave trough is formed at the joint of the sub-cleaning surfaces 1041 and the arc surface 1042, and the arc surface 1042 has a wave crest of the waveform.

The brush head body 101 is used for bearing brush hair, in order to be convenient for stretch into the oral cavity, the brush head body 101 generally sets up to the platykurtic, and the front end that brush head body 101 got into the oral cavity is narrowed to reduce the degree of difficulty that gets deep into the oral cavity inside, the fine design of brush head body 101 can reduce the uncomfortable sense that causes the tooth when brushing teeth moreover.

In order to realize the deep cleaning of tooth surfaces and tooth gaps, the first bristle group 102 for cleaning the tooth surfaces and the second bristle group 103 for cleaning the tooth gaps are staggered, and a wrapped cleaning ring for the teeth is formed, so that the omnibearing cleaning of the teeth is better realized.

At least one cleaning ring surrounded by the first bristle group 102 corresponds to one tooth, and in this example, two cleaning rings along the length direction of the brush head body 101 can be formed by the first bristle group 102, so that effective cleaning of two teeth and gaps between adjacent teeth can be realized at one time.

To further achieve effective cleaning of the crevices of the teeth, the cleaning surface 104 of the first bristle set 102 and the second bristle set 103, which are in contact with the teeth, is designed as a wave form comprising two valleys, one peak in the middle and two peaks at both ends. The structure of the cleaning surface 104 can be understood as two sub-cleaning surfaces 1041 located at two ends of the waveform, where the sub-cleaning surfaces 1041 may be configured as an inclined plane or a curved plane, and not limited herein, a middle section connecting the two sub-cleaning surfaces 1041 is a cambered surface 1042, and a junction between the two sub-cleaning surfaces 1041 and the cambered surface 1042 forms the two wave troughs, and the cambered surface 1042 forms the one wave peak located in the middle. The cleaning surface 104 with the waveform can better wrap teeth, so that the first bristle group 102 cleans the periphery of the tooth surface of the teeth, the second bristle group 103 positioned in the cleaning ring cleans the occlusal surface of the teeth, and the second bristle group 103 positioned at the peak cleans the tooth gaps.

In addition, the bristle field in this example is designed to satisfy the requirement of brushing two teeth at a time, while the crown of a normal adult (i.e., the portion of the teeth exposed outside the gums) has a height of 7mm to 11mm and a thickness of 6 to 10mm, so that the sum of the left and right teeth is not longer than 20mm and the height is not longer than 11mm, and thus the bristle field of this design may have a length of 20mm, a width of 10mm and a height of 11 to 12mm.

In this embodiment, the first bristle group 102 and the second bristle group 103 are arranged on the surface of the brush head body 101 in a staggered manner, the first bristle group 102 is enclosed into a cleaning ring shape which is convenient for cleaning the periphery of teeth, and the second bristle group 103 is arranged in the cleaning ring, so that the occlusal surface of the teeth can be cleaned effectively; the cleaning surfaces 104 of the first bristle group 102 and the second bristle group 103, which are in contact with teeth, are designed into waveforms, and the second bristle group 103 is arranged at the wave crest so as to clean the gaps between teeth deeply and care the gums, thereby achieving the purpose of cleaning the teeth efficiently.

The respective partial structures of the above-described brush head in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 7.

In one embodiment, as shown in fig. 1 and 3, the end of the brush head body 101 facing away from the handle is formed with a tip having two opposite sides 1013, and an included angle θ is formed between the sides 1013, and a transition surface 1014 is formed between the sides 1013 between 40 ° and 60 °.

It will be appreciated that in this example, the end of the brush head body 101 that first extends into the mouth is specially designed, and the opposite sides 1013 of the end are angled, i.e. the end is narrowed, and a transition surface 1014 is provided between the sides 1013, where the transition surface 1014 may be planar, but needs to be chamfered with the sides 1013 on both sides. The transition surface 1014 may also be configured as a curved surface 1042 and may be in smooth connection with the side surfaces 1013. The setting of this kind of end can reduce the degree of difficulty that brush head body 101 in-depth oral cavity is inside to can reduce the uncomfortable sense that causes the tooth when brushing teeth.

The shape of the end of the brush head body 101 can be further understood that the orthographic projection of the end along the direction perpendicular to the surface of the brush head body 101 is isosceles trapezoid, and two waist lines of the isosceles trapezoid extend to form an included angle θ.

The brush head body 101 in this example can be understood as cutting the head of the brush head body 101 projected as a hexagon, the end projection formed after cutting is isosceles trapezoid, and the extending included angle θ of two waist lines of the isosceles trapezoid can be designed to be 50 °, so that the impact of the brush head on the gum or gum when the brush head is connected to the electric handle for vibration can be reduced.

In one example, the thickness of the brush head body 101 is between 2-4 mm. The thin design of the brush head body 101 can reduce discomfort of a user's entrance and reduce vibration of the brush head to teeth and gums during vibration.

In one embodiment, the first bristle group 102 comprises a plurality of first bristle bundles having rounded bristle filaments and the second bristle group 103 comprises a plurality of second bristle bundles having pointed bristle filaments.

The first bristle bundle can adopt PA to grind round brush wires to form a cleaning ring which wraps and cleans the periphery of teeth, so that the cleaning efficiency is high, and the teeth are not damaged. The second bristle bundles can adopt PBT sharpening brush wires, part of the second bristle bundles are positioned in the cleaning ring and used for cleaning the occlusal surfaces of teeth, and the wave crests are formed on the end surfaces of part of the second bristle bundles, so that the teeth can be cleaned more easily to penetrate into gaps between teeth.

As shown in fig. 3, 4, 5 and 6, in one embodiment, a plurality of first bristle planting grooves 1011 and a plurality of second bristle planting grooves 1012 are configured in the bristle planting region, the first bristle planting grooves 1011 have an oblong shape and are suitable for fixing the first bristle bundles, and the second bristle planting grooves 1012 have a circular shape and are suitable for fixing the second bristle bundles.

The first and second bristle grooves 1011 and 1012 are provided mainly for fixing the first and second bristle bundles. The first bristle planting groove 1011 is used for fixing a first bristle bundle with round grinding brush wires, and the first bristle planting groove 1011 is arranged into an oblong shape, and the contact area between the first bristle bundle and teeth can be increased by the oblong shape, so that the aim of high-efficiency cleaning is achieved. The second bristle planting groove 1012 is used for fixing a second bristle bundle with sharpening brush wires and is circular, the area of the second bristle planting groove 1012 is smaller than that of the first bristle planting groove 1011, damage to gums caused by the second bristle bundle with sharpening brush wires for a long time is prevented, the second bristle bundle can also penetrate into the gingival gaps of teeth, and the purposes of caring the gums and efficiently cleaning the teeth are achieved.

As shown in fig. 3, in one embodiment, the cleaning ring comprises a plurality of sub-cleaning rings 105 distributed along the length of the brush head body 101, the sub-cleaning rings 105 are adapted to clean the periphery of a single tooth, and a plurality of second bristle bundles disposed within the sub-cleaning rings 105 are adapted to clean the occlusal surfaces of the tooth.

The sub-cleaning rings 105 in this example can wrap one tooth, and two sub-cleaning rings 105 can be distributed along the length direction of the brush head body 101, so as to realize deep cleaning of two teeth at a time. The first bristle bundles distributed around the teeth can clean four sides of the tooth surface of the teeth, and the second bristle bundles positioned in the sub-cleaning ring 105 can clean the occlusal surface of the teeth. The setting of two tooth cleaning areas can effectively wrap up the nature clean to the tooth, reaches the efficient clear effect to the tooth.

In one embodiment, second bristle tufts are provided between adjacent sub-cleaning rings 105 and/or at the edges of sub-cleaning rings 105, which are adapted to clean the crevices of teeth.

The second bristle bundles are arranged between the adjacent sub-cleaning rings 105, namely at the wave crest position of the cleaning surface 104, and the second bristle bundles are sharpening brush wires, so that the teeth can be effectively penetrated into the tooth gum gaps, and the purposes of caring the gum and efficiently cleaning the teeth are achieved. While the edge of the sub-cleaning ring 105 can be understood as the opposite end of the two cleaning rings, which end position is just at the crevices of the teeth, so that a second bristle bundle can be placed at this end position for effective cleaning of the crevices of the teeth.

In one embodiment, the first and second bristle bundles have a height of between 11-12 mm; the diameter of the rounded brush filaments in the first bristle bundle ranges from 0.12mm to 0.16mm, and the diameter of the pointed brush filaments in the second bristle set 103 ranges from 0.12mm to 0.16mm.

The cleaning surface 104 formed by the ends of the first and second bristle bundles has a wave shape, so that the heights of the first and second bristle bundles are high or low, the height may be set to 12mm, the height may be set to 11mm, and the height is designed mainly based on the tooth height of a normal adult, but not particularly limited thereto. The wire diameter of the round brush wire may be set to 0.12mm,0.14mm,0.16mm, but is not limited thereto. The wire diameter of the sharpening brush wire may be set to 0.12mm,0.14mm,0.16mm, but is not limited thereto.

In one embodiment, as shown in fig. 7, the sub-cleaning surface 1041 is a plane, an included angle between the two planes is between 140 ° and 145 °, an included angle between the sub-cleaning surface 1041 and a direction perpendicular to the brush head body 101 is between 65 ° and 75 °, and a distance between two valleys formed between the two sub-cleaning surfaces 1041 and the adjacent cambered surface 1042 is between 10.5 mm and 11.5mm.

The included angle between the two sub-cleaning surfaces 1041 is shown as α in fig. 7, and the included angle between the sub-cleaning surfaces 1041 and the direction perpendicular to the brush head body 101 is shown as β in fig. 7, so as to ensure that the two troughs are better positioned close to the gaps of the teeth. The angle α between the two sub-cleaning surfaces 1041 may be 142 °, and the angle β between the sub-cleaning surfaces 1041 and the direction perpendicular to the brush head body 101 may be 72 °. The distance L between two valleys may be 11mm, which size ensures a good correspondence of the valley position of the tooth surface. The height H of the first bristle bundle or the second bristle bundle may be 11.5mm.

A second aspect of the present exemplary embodiment provides a toothbrush including a toothbrush handle and a toothbrush head as in the above example, the brush head body 101 being detachably connected to the toothbrush handle.

The toothbrush provided in this example may be a normal toothbrush or an electric toothbrush, and the toothbrush head provided in the above embodiment and the electric toothbrush cooperate to achieve a better effect of cleaning teeth. The detachable manner of the brush head body 101 and the toothbrush handle can be understood with reference to the conventional art, and will not be described herein.

The toothbrush in this embodiment can achieve a better effect of cleaning teeth by being used in cooperation with the toothbrush head in the above embodiment.

Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the utility model, and not limiting. While the utility model has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and it is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. A toothbrush head, comprising:

the brush head comprises a brush head body, wherein at least one surface of the brush head body is provided with a bristle planting area;

the first bristle group is arranged in the bristle planting area, and the first bristle group surrounds a cleaning ring suitable for cleaning the periphery of teeth;

the second bristle group is arranged in the bristle planting area, and at least part of the second bristle group is positioned in the cleaning ring;

the brush head comprises a brush head body, a first bristle group and a second bristle group, wherein one side of the brush head body, far away from the first bristle group, forms a cleaning surface, the cleaning surface is in a waveform, the cleaning surface comprises sub cleaning surfaces positioned at two ends of the waveform and an arc surface positioned in the middle of the waveform, the junction of the sub cleaning surfaces and the arc surface forms a trough of the waveform, and the arc surface is provided with a crest of the waveform.

2. The toothbrush head according to claim 1, wherein a tip is formed at an end of the toothbrush head body facing away from the handle, the tip having two oppositely disposed sides, and an included angle θ is formed between the two sides, the θ being between 40 ° and 60 °, and a transition surface being provided between the two sides.

3. The toothbrush head according to claim 2, wherein the front projection of the end head along the direction vertical to the surface of the toothbrush head body is in an isosceles trapezoid shape, and two waist lines of the isosceles trapezoid extend to form the included angle θ.

4. The toothbrush head of claim 1 wherein the first bristle group comprises a plurality of first bristle bundles having rounded bristles and the second bristle group comprises a plurality of second bristle bundles having pointed bristles.

5. The toothbrush head of claim 4, wherein a plurality of first bristle planting grooves and a plurality of second bristle planting grooves are configured in the bristle planting region, the first bristle planting grooves being oblong and adapted to secure the first bristle bundles, the second bristle planting grooves being circular and adapted to secure the second bristle bundles.

6. The toothbrush head of claim 4, wherein said cleaning ring comprises a plurality of sub-cleaning rings distributed along the length of said toothbrush head body, said sub-cleaning rings being adapted to clean the periphery of individual teeth, and a plurality of said second bristle bundles disposed within said sub-cleaning rings being adapted to clean the occlusal surfaces of teeth.

7. The toothbrush head according to claim 6 wherein the second bristle bundles are provided between adjacent ones of the sub-cleaning loops and/or at the edges of the sub-cleaning loops, the second bristle bundles being adapted to clean the crevices of teeth.

8. The toothbrush head of claim 7, wherein the first and second bundles of bristles have a height of between 11-12 mm; the diameter range of the rounding brush wires in the first bristle bundle is 0.12mm-0.16mm, and the diameter range of the sharpening brush wires in the second bristle group is 0.12mm-0.16mm.

9. The toothbrush head according to any one of claims 1 to 8 wherein the sub-cleaning surfaces are planar, the angle between two of the planar surfaces is between 140-145 °, the angle between the sub-cleaning surfaces and the direction perpendicular to the toothbrush head body is between 65-75 °, and the distance between two valleys formed between two of the sub-cleaning surfaces and the adjacent cambered surface is between 10.5-11.5 mm; and/or the number of the groups of groups,

the thickness of the brush head body is between 2 and 4 mm.

10. A toothbrush comprising a toothbrush handle and a toothbrush head according to any one of claims 1 to 9, the head body being detachably connected to the toothbrush handle.