CN219374047U - Toothbrush head and electric toothbrush - Google Patents

Abstract

The utility model discloses a brush head of a toothbrush and an electric toothbrush, wherein the brush head of the toothbrush comprises: the brush plate is respectively provided with a front side and a back side at the two sides of the thickness; the plurality of bristle tufts comprises a plurality of first bristle tufts and a plurality of second bristle tufts which surround the plurality of first bristle tufts at intervals along the extension direction of the positive side edge contour of the brush plate; the brush head is in orthographic projection on the first projection plane, two second bristle clusters which are farthest in the length direction of the brush plate are positioned on two sides of all the first bristle clusters, tip connecting lines of the two second bristle clusters which are farthest in the length direction of the brush plate are first connecting lines, and tips of any first bristle cluster are protruded out of the first connecting lines towards the positive side. The brush head of the toothbrush can effectively contact with teeth in the whole tooth brushing process, so that the tooth brushing effect is effectively improved.

Description

Toothbrush head and electric toothbrush

Technical Field

The utility model relates to the technical field of toothbrushes, in particular to a brush head of a toothbrush and an electric toothbrush.

Background

In the related art, a brush head of a toothbrush includes a brush plate and bristles, the bristles are implanted on the brush plate, and the arrangement of the bristles is generally divided into two types: the brush head is wavy and linear in the extending direction, so as to adapt to the tooth arrangement shape, and in fact, the brushing of teeth by a user is a dynamic process, and the brush head with the shape has relatively limited help to promote the cleaning effect during brushing.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the brush head of the toothbrush, and the bristle clusters can be effectively contacted with teeth in the whole tooth brushing process, so that the tooth brushing effect is effectively improved.

A brush head of a toothbrush according to an embodiment of the present utility model includes: the thickness of the brush plate is respectively provided with a front side and a back side; a bristle tuft having a root connected to the brush plate, a tip of the bristle tuft extending to a front side of the brush plate, the bristle tuft being a plurality and including a plurality of first bristle tufts and a plurality of second bristle tufts spaced around the plurality of first bristle tufts along a front side edge contour line extension direction of the brush plate; the brush head is arranged on the front projection of the brush head on the first projection surface, two second bristle tufts farthest in the length direction of the brush plate are positioned on two sides of all the first bristle tufts, the tip connecting lines of the two second bristle tufts farthest in the length direction of the brush plate are first connecting lines, and the tips of any first bristle tuft protrude out of the first connecting lines towards the front side.

According to the brush head of the toothbrush provided by the embodiment of the utility model, the tips of any first bristle tufts are protruded out of the first connecting line towards the positive side, so that when a user brushes teeth, if the user brushes teeth close to the inner side, part of the bristle tufts positioned at the head can fully contact with the teeth, and when the user brushes teeth close to the outer side, part of the bristle tufts positioned at the tail can fully contact with the teeth, and in the whole brushing process, the bristle tufts can be effectively contacted with the teeth, so that the brushing effect is effectively improved.

In accordance with some embodiments of the present utility model, the tips of the plurality of first bristle tufts protrude from the normal height of the first wire toward the front side in the front projection of the brush head on the first projection surface, and gradually decrease in a direction from the center to the edge of the brush plate.

According to the brush head of the toothbrush, a second projection surface extending along the thickness direction of the brush plate is formed by passing through the width center line of the brush plate, in the orthographic projection of the brush head on the second projection surface, two second bristle tufts which are farthest away from each other along the width direction of the brush plate are positioned on two sides of all the first bristle tufts, the connection line of the tips of the two second bristle tufts which are farthest away from each other along the width direction of the brush plate is a second connection line, and the tips of any first bristle tuft protrude out of the second connection line towards the front side.

In accordance with some embodiments of the present utility model, the tips of the plurality of first bristle tufts protrude from the normal height of the second wire toward the front side in the front projection of the brush head on the second projection surface, gradually decreasing in a direction from the center to the edge of the brush plate.

In the front projection of the brush head on the second projection surface, the root parts of the two second bristle tufts farthest from each other along the width direction of the brush plate are farthest from each other by 10mm to 15mm.

The tips of all of the second bristle tufts are on the same plane in the head of toothbrushes according to some embodiments of the present utility model.

The tips of any of the first bristle tufts protrude toward the front side from the respective set plane in accordance with the heads of toothbrushes of some embodiments of the present utility model.

In toothbrush heads according to some embodiments of the present utility model, the tips of the first bristle tufts have a first height normal to the projection of the set plane, the first heights of the first bristle tufts in either cross-section or longitudinal section of the brush plate decreasing in a direction from the center to the edge of the brush plate.

In accordance with the brush head of the toothbrush according to some embodiments of the present utility model, the first heights of the plurality of first bristle tufts in either cross-section or either longitudinal section of the brush plate gradually increase in magnitude gradually decreasing in a direction from the center to the edge of the brush plate.

According to some embodiments of the toothbrush head of the toothbrush, the front side surface of the brush plate is a plane, the normal height of the tip of the first bristle tuft protruding relative to the front side surface is a second height, the normal height of the tip of the second bristle tuft protruding relative to the front side surface is a third height, and any one of the second heights is greater than any one of the third heights.

The brush head of the toothbrush according to some embodiments of the present utility model, the second heights of the plurality of first bristle tufts in either cross section or either longitudinal section of the brush plate gradually decrease in a direction from the center to the edge of the brush plate.

The difference between the second height and the third height is 0.5mm to 2.5mm.

According to the brush head of the toothbrush, a plurality of pore-planting holes are formed in the brush plate, the bristle clusters are arranged in a one-to-one correspondence with the pore-planting holes, the root parts of the bristle clusters are connected to the pore-planting holes, and the axes of the pore-planting holes extend in the direction perpendicular to the surface of the front side.

According to the brush head of the toothbrush, a plurality of pore-planting holes are formed in the brush plate, the bristle clusters are arranged in a one-to-one correspondence with the pore-planting holes, the root parts of the bristle clusters are connected to the pore-planting holes, and the axes of the pore-planting holes are parallel.

According to the brush head of the toothbrush according to some embodiments of the present utility model, a plurality of the first bristle tufts constitute a plurality of columns arranged in a length direction of the brush plate, each column including a plurality of the first bristle tufts arranged in a width direction of the brush plate; and/or, the plurality of first bristle tufts form a plurality of rows arranged in the width direction of the brush plate, each row comprising the plurality of first bristle tufts arranged in the length direction of the brush plate.

In accordance with some embodiments of the toothbrush head of the present utility model, the root spacing of any adjacent two of the bristle tufts is less than the equivalent diameter of the root of any one of the bristle tufts.

The minimum distance between the second bristle tuft and the edge of the brush plate is 0.3mm-1mm according to the brush head of the toothbrush of some embodiments of the present utility model.

According to some embodiments of the toothbrush of the present utility model, the distance between the two furthest apart bristle tufts along the length of the brush plate is greater than the distance between the two furthest apart bristle tufts along the width of the brush plate; and/or the number of the plurality of bristle tufts arranged in the longitudinal direction of the brush plate on any one of the cross sections of the brush plate is greater than the number of the plurality of bristle tufts arranged in the width direction of the brush plate on any one of the longitudinal sections of the brush plate.

The utility model also provides an electric toothbrush.

An electric toothbrush according to an embodiment of the present utility model comprises a handle and a brush head according to any of the above embodiments, wherein the brush head comprises a brush rod, the brush plate is connected to one end of the length of the brush rod, and the handle is connected to the other end of the length of the brush rod.

The electric toothbrush and the brush head of the toothbrush have the same advantages compared with the prior art, and are not repeated here.

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

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a brush head of a toothbrush according to some embodiments of the present utility model;

FIG. 2 is an exploded view of the head of the toothbrush shown in FIG. 1;

FIG. 3 is a cross-sectional view at A-A in FIG. 1;

FIG. 4 is a cross-sectional view at B-B in FIG. 1;

FIG. 5 is a schematic view of a bristle tuft hidden by the head of the toothbrush shown in FIG. 1;

FIG. 6 is a schematic view of an electric toothbrush according to some embodiments of the present utility model;

reference numerals:

the electric toothbrush 1000 is provided with a pair of bristles,

the head 100, handle 200,

brush deck 10, front side 101, back side 102,

the bristle tufts 20, root 201, tip 202,

the first bristle tuft 21, the second bristle tuft 22,

a first connection line L1, a second connection line L2,

the implantation of the pores 30 takes place,

a brush bar 40.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

A brush head 100 of a toothbrush according to an embodiment of the present utility model is described below with reference to fig. 1-6.

As shown in fig. 1, a brush head 100 of a toothbrush according to an embodiment of the present utility model includes: a brush plate 10 and bristle tufts 20.

Specifically, as shown in fig. 2, the brush plate 10 has a front side 101 and a back side 102 on both sides of the thickness thereof, respectively, root portions 201 of the bristle tufts 20 are connected to the brush plate 10, tip portions 202 of the bristle tufts 20 extend to the front side 101 of the brush plate 10, the bristle tufts 20 are plural and include a plurality of first bristle tufts 21 and a plurality of second bristle tufts 22, and the plurality of second bristle tufts 22 are spaced around the plurality of first bristle tufts 21 along the direction in which the edge contour of the front side 101 of the brush plate 10 extends; as shown in fig. 3, the length center line of the brush plate 10 is a first projection plane extending along the thickness direction of the brush plate 10, in the orthographic projection of the brush head 100 on the first projection plane, two second bristle tufts 22 farthest along the length direction of the brush plate 10 are located at two sides of all the first bristle tufts 21, and the tips 202 of two second bristle tufts 22 farthest along the length direction of the brush plate 10 are connected to form a first connection L1, and the tips 202 of any first bristle tuft 21 protrude from the first connection L1 toward the front side 101.

Thereby, the heights of the first bristle tufts 21 are each made larger than the heights of the second bristle tufts 22, and the plurality of second bristle tufts 22 surround the plurality of first bristle tufts 21 at intervals along the direction in which the edge contour of the front side 101 of the brush plate 10 extends, i.e., the height of the bristle tufts 20 forming the middle portion of the brush plate 10 is higher than the height of the bristle tufts 20 of the edge portion, in other words, the height of the bristle tufts 20 protruding from the front side 101 of the brush plate 10 gradually decreases from the middle portion to the peripheral edge.

Thus, the bristle tufts 20 are arranged in the above arrangement, so that when a user brushes his or her teeth back and forth or brushes his or her teeth up and down, for example, back and forth, a portion of the bristle tufts 20 located at the head can be effectively contacted with the teeth in the process of brushing the teeth on the inner side, and a portion of the bristle tufts 20 located at the tail can be effectively contacted with the teeth in the process of brushing the teeth on the outer side, so that the entire brushing process can be effectively contacted with the teeth, thereby effectively improving the brushing effect.

Wherein, the head refers to an end far away from the brush bar 40 in the length direction of the brush plate 10, and the tail refers to an end near to the brush bar 40 in the length direction of the brush plate 10.

For example, the brush head 100 includes a brush plate 10 and bristle tufts 20, the root portions 201 of the bristle tufts 20 are connected to the brush plate 10, and the tip portions 202 of the bristle tufts 20 project toward the front side 101 of the brush plate 10, such that the root portions 201 of the bristle tufts 20 can be secured to the brush plate 10 to enhance the stability of the connection of the bristle tufts 20 to the brush plate 10, and to facilitate sufficient contact of the tip portions 202 of the bristle tufts 20 with the teeth during brushing to effect cleaning of the teeth.

As shown in fig. 3, the tips 202 of any first bristle tuft 21 protrude from the first line L1 toward the front side 101, i.e., the height of the bristle tuft 20 protruding from the front side 101 of the brush plate 10 gradually decreases from the middle to the periphery. Thus, when the user brushes his or her teeth back and forth from left to right or brushes his or her teeth up and down, for example, the brush of the teeth back and forth from left to right, the partial bristle cluster 20 located at the head can be effectively contacted with the teeth in the process of brushing the teeth near the inner side, and the partial bristle cluster 20 located at the tail can be effectively contacted with the teeth in the process of brushing the teeth near the outer side, so that the whole brushing process can be effectively contacted with the teeth, thereby effectively improving the brushing effect.

According to the brush head 100 of the toothbrush of the embodiment of the utility model, the tips 202 of any first bristle tuft 21 are protruded from the first connecting line L1 toward the front side 101, so that when a user brushes teeth, if the user brushes teeth close to the inner teeth, part of the bristle tufts 20 positioned at the head can fully contact the teeth, and when the user brushes teeth close to the outer teeth, part of the bristle tufts 20 positioned at the tail can fully contact the teeth, and thus, the bristle tufts 20 can effectively contact the teeth in the whole brushing process, and the brushing effect is effectively improved.

In some embodiments, as shown in fig. 3, in an orthographic projection of the brush head 100 on the first projection plane, the tips 202 of the plurality of first bristle tufts 21 protrude from the normal height of the first connecting line L1 toward the front side 101, gradually decreasing in a direction from the center to the edge of the brush plate 10.

That is, the normal height of the plurality of first bristle tufts 21 protruding from the first connecting line L1 gradually decreases from the middle toward the peripheral edge. Thus, when the user brushes his or her teeth back and forth from left to right or brushes his or her teeth up and down, for example, the brush of the teeth back and forth from left to right, the partial bristle cluster 20 located at the head can be effectively contacted with the teeth in the process of brushing the teeth near the inner side, and the partial bristle cluster 20 located at the tail can be effectively contacted with the teeth in the process of brushing the teeth near the outer side, so that the whole brushing process can be effectively contacted with the teeth, thereby effectively improving the brushing effect.

In some embodiments, as shown in fig. 4, the center line of the width of the brush plate 10 is a second projection plane extending along the thickness direction of the brush plate 10, in the orthographic projection of the brush head 100 on the second projection plane, two second bristle tufts 22 farthest from each other along the width direction of the brush plate 10 are located at both sides of all the first bristle tufts 21, and the tip 202 of two second bristle tufts 22 farthest from each other along the width direction of the brush plate 10 are connected to form a second connection line L2, and the tip 202 of any first bristle tuft 21 protrudes from the second connection line L2 toward the front side 101.

That is, the height of the bristle tufts 20 protruding from the front side 101 of the brush plate 10 gradually decreases from the middle toward both sides in the width direction of the brush plate 10. Thus, when the user brushes his or her teeth back and forth from left to right or brushes his or her teeth up and down, for example, the bristle tufts 20 positioned on one side in the width direction of the brush plate 10 can be effectively contacted with the teeth during brushing the teeth on the upper side, and the bristle tufts 20 positioned on the other side in the width direction of the brush plate 10 can be effectively contacted with the teeth during brushing the teeth on the lower side, so that the bristle tufts 20 can be effectively contacted with the teeth during the whole brushing process, thereby effectively improving the brushing effect.

Further, as shown in fig. 4, in the front projection of the brush head 100 on the second projection surface, the tips 202 of the plurality of first bristle tufts 21 protrude from the normal height of the second connecting line L2 toward the front side 101, and gradually decrease in a direction from the center to the edge of the brush plate 10.

That is, the normal height of the plurality of first bristle tufts 21 protruding from the second connecting line L2 gradually decreases from the middle toward the peripheral edge. Thus, when the user brushes his or her teeth back and forth from left to right or brushes his or her teeth up and down, for example, the bristle tufts 20 positioned at the head can be effectively contacted with the teeth in the process of brushing the teeth on the inner side, and the bristle tufts 20 positioned at the tail can be effectively contacted with the teeth in the process of brushing the teeth on the outer side, so that the bristle tufts 20 can be effectively contacted with the teeth in the whole brushing process, thereby effectively improving the brushing effect.

In some embodiments, as shown in FIG. 4, the root 201 of the two second bristle tufts 22 furthest apart in the width direction of the brush plate 10 in the orthographic projection of the brush head 100 on the second projection plane is 10mm-15mm.

So, set up the broad with the brush hair, can brush two rows of teeth about simultaneously, improve the efficiency of clean tooth, and take into account the size of user's tooth comprehensively for second brush hair cluster 22 is difficult to with the gum contact, avoids the scratch gum, and the length of the second brush hair cluster 22 of outer lane is shorter, can reduce the contact with the gum.

In some embodiments, as shown in fig. 3 and 4, the tips 202 of all of the second bristle tufts 22 lie on the same plane.

Therefore, the heights of the second bristle tufts 22 positioned around the first bristle tuft 21 are the same, which is convenient for mass production of a plurality of the second bristle tufts 22 and is beneficial to reducing the setting difficulty of the second bristle tufts 22.

Further, as shown in fig. 1-4, the tips 202 of any of the first bristle tufts 21 each project from the set plane toward the front side 101.

It should be noted that, the setting plane refers to a plane corresponding to the front side 101 of the brush board 10, and any first bristle tuft 21 is set to protrude toward the front side 101, so as to reduce difficulty in setting the first bristle tuft 21, and facilitate cleaning teeth by using the first bristle tuft 21.

Further, as shown in fig. 1, the tips 202 of the first bristle tufts 21 protrude from the set plane by a first height, and the first heights of the plurality of first bristle tufts 21 in any cross section or any longitudinal section of the brush plate 10 gradually decrease in a direction from the center to the edge of the brush plate 10.

Thus, the first height of the first bristle tufts 21 gradually decreases in the center-to-edge direction of the brush plate 10 such that the first height of the first bristle tufts 21 gradually approaches the height of the second bristle tufts 22, thus making the first bristle tufts 21 and the tips 202 of the adjacent second bristle tufts 22 relatively smooth, less prone to forming sharp protrusions, and more comfortable brushing.

In some embodiments, as shown in fig. 3 or 4, the first height of the plurality of first bristle tufts 21 in either cross-section (as shown in fig. 4) or either longitudinal section (as shown in fig. 3) of the brush plate 10 increases progressively in magnitude decreasing in a direction from the center to the edge of the brush plate 10.

Thus, the first height of the first bristle tufts 21 is gradually increased in the center-to-edge direction of the brush plate 10, so that the tips 202 of adjacent first bristle tufts 21 are relatively smooth, tip protrusions are not easily formed, and brushing is more comfortable.

In some embodiments, the face 101 surface of the brush plate 10 is planar, the tips 202 of the first bristle tufts 21 project a second height relative to the face 101 surface, the tips 202 of the second bristle tufts 22 project a third height relative to the face 101 surface, and either second height is greater than either third height.

That is, the second height of any one of the first bristle tufts 21 protruding with respect to the plane is greater than the third height of the tip 202 of any one of the second bristle tufts 22 protruding with respect to the plane, and since the plurality of second bristle tufts 22 are disposed around the plurality of first bristle tufts 21, the height of the plurality of bristle tufts 20 is gradually reduced from the middle toward the peripheral edge. Thus, when the user brushes his or her teeth back and forth from left to right or brushes his or her teeth up and down, for example, the brush of the teeth back and forth from left to right, the partial bristle cluster 20 located at the head can be effectively contacted with the teeth in the process of brushing the teeth near the inner side, and the partial bristle cluster 20 located at the tail can be effectively contacted with the teeth in the process of brushing the teeth near the outer side, so that the whole brushing process can be effectively contacted with the teeth, thereby effectively improving the brushing effect.

Further, as shown in fig. 3 or 4, the second heights of the plurality of first bristle tufts 21 in either cross section or either longitudinal section of the brush plate 10 gradually decrease in a direction from the center to the edge of the brush plate 10.

Thus, the second height of the first bristle tufts 21 gradually decreases in the center-to-edge direction of the brush plate 10 such that the second height of the first bristle tufts 21 gradually approaches the height of the second bristle tufts 22, thus making the first bristle tufts 21 and the tips 202 of the adjacent second bristle tufts 22 relatively smooth, less prone to forming sharp protrusions, and more comfortable brushing.

Further, the difference between the second height and the third height is 0.5mm-2.5mm.

In other words, the difference between the second height and the third height refers to the change between the second height at which the first bristle tuft 21 protrudes from the plane and the third height at which the second bristle tuft 22 protrudes from the plane,

it should be noted that, if the change between the second height and the third height is smaller than 0.5mm, that is, the change between the second height and the third height is smaller, the actual contact area between the bristle tuft 20 and the teeth is smaller, and if the change between the second height and the third height is larger than 2.5mm, the change rate between the second height and the third height is larger, and the contact area with the tooth surface is also affected due to the mismatch between the change rate between the second height and the third height and the tooth surface.

Therefore, it is required to control the difference between the second height and the third height to be 0.5mm to 2.5mm, for example, the difference between the second height and the third height is 0.9mm, or the difference between the second height and the third height is 1.2mm, or the difference between the second height and the third height is 2.21mm, that is, when the difference between the second height and the third height satisfies the above-mentioned range, it is possible to secure a sufficient contact area between the bristle tufts 20 and the teeth to promote the brushing effect, and to enable the bristle tufts 20 to be better adapted to the tooth surface shape of the teeth.

In some embodiments, as shown in fig. 2 and 5, the brush plate 10 has a plurality of holes 30, the plurality of bristle tufts 20 are disposed in one-to-one correspondence with the plurality of holes 30, root portions 201 of the bristle tufts 20 are connected to the corresponding holes 30, and axes of the holes 30 extend in a direction perpendicular to the surface of the front side 101.

Therefore, the root parts 201 of the bristle tufts 20 can be installed in the corresponding bristle holes 30 one by one, so that the structural stability of the bristle tufts 20 is enhanced, and the tip parts 202 of the installed bristle tufts 20 can be ensured to protrude in the direction perpendicular to the surface of the front side 101 due to the fact that the axes of the bristle holes 30 extend in the direction perpendicular to the surface of the front side 101, so that the tooth brushing effect is ensured. It should be noted that some of the bristles in the bristle tufts 20 inevitably tilt away from the tuft hole 30 in a direction away from the root, but the entire bristle tuft 20 may be considered to be generally perpendicular to the brush plate 10.

In some embodiments, as shown in fig. 2 and 5, the brush plate 10 has a plurality of holes 30, the plurality of bristle tufts 20 are disposed in one-to-one correspondence with the plurality of holes 30, the root portions 201 of the bristle tufts 20 are connected to the corresponding holes 30, and the axes of the plurality of holes 30 are parallel.

Thus, the root portions 201 of the plurality of bristle tufts 20 can be mounted one-to-one within the corresponding implantation holes 30 in order to enhance the structural stability of the bristle tufts 20.

In some embodiments, as shown in FIG. 1, the plurality of first bristle tufts 21 comprise a plurality of columns aligned along the length of the brush plate 10, each column comprising a plurality of first bristle tufts 21 aligned along the width of the brush plate 10.

Thus, when the user brushes his or her teeth (up and down brushes or left and right brushes), the bristle tufts 20 can be brought into sufficient contact with the teeth, which is advantageous in improving the cleaning effect.

And/or, the plurality of first bristle tufts 21 constitute a plurality of rows arranged in the width direction of the brush plate 10, each row including the plurality of first bristle tufts 21 arranged in the length direction of the brush plate 10.

Thus, when the user brushes his or her teeth (up and down brushes or left and right brushes), the bristle tufts 20 can be brought into sufficient contact with the teeth, which is advantageous in improving the cleaning effect.

In some embodiments, the spacing of the bases 201 of any two adjacent bristle tufts 20 is less than the equivalent diameter of the base 201 of any one bristle tuft 20.

It should be noted that, the equivalent diameter of the bristle cluster 20 is the diameter of the implanted pores 30, so that the distance between adjacent bristles is smaller than the size of the implanted pores 30, so that the missing brushing of the tooth surface area can be avoided, the brushing area is uniform, and the cleaning effect is improved.

In some embodiments, the minimum distance between the second bristle tuft 22 and the edge of the brush plate 10 is 0.3mm-1mm.

The distance between the second bristle tuft 22 and the edge of the brush plate 10 is Mao Bianju of the bristle tufts 20 (the distance between the second bristle tuft 22 and the peripheral edge of the brush plate 10).

It will be appreciated that due to the limitations of the size of the human mouth, and the present brush head 100 may be used to brush both the upper and lower teeth, such that the size of the brush head 100 is itself relatively large, which may cause discomfort to the user's mouth, if the margin of the bristles is not reasonably controlled, for example, the margin of the bristles is too large, which may result in the overall width of the brush plate 10, which may have a significant foreign body sensation after extending into the mouth, and the brushing is uncomfortable, while the margin of the bristles is too small, which may result in the edges of the brush plate 10 being easily broken if the bristle tufts 20 are copper-free, and the structural strength of the edges of the brush plate 10 is relatively small, which may affect the product life.

Therefore, it is necessary to reasonably control the distance between the second bristle tufts 22 and the edge of the brush plate 10, for example, the minimum distance between the second bristle tufts 22 and the edge of the brush plate 10 is 0.4mm, or the minimum distance between the second bristle tufts 22 and the edge of the brush plate 10 is 0.5mm, or the minimum distance between the second bristle tufts 22 and the edge of the brush plate 10 is 0.8mm, that is, when the minimum distance between the second bristle tufts 22 and the edge of the brush plate 10 satisfies the above-mentioned value range, the burr distance can be ensured to be within a reasonable range, the overall width of the brush plate 10 is prevented from being excessively large, the foreign body sensation generated when the brush head 100 is stretched into the oral cavity is reduced, and the comfort of brushing teeth is advantageously improved.

In some embodiments, as shown in FIG. 1, the spacing of the two bristle tufts 20 furthest apart along the length of the brush plate 10 is greater than the spacing of the two bristle tufts 20 furthest apart along the width of the brush plate 10.

Therefore, the dimension of the bristle tufts 20 in the length direction of the brush plate 10 is made larger than the dimension of the bristle tufts 20 in the width direction of the brush plate 10, so that the contact area of the bristles with the teeth during the inward or outward step each time the brush is returned from side to side can be increased to improve the brushing efficiency.

And/or the number 5 of the plurality of bristle tufts 20 arranged in the length direction of the brush plate 10 in any one of the cross-sections of the brush plate 10 is greater than the number of the plurality of bristle tufts 20 arranged in the width direction of the brush plate 10 in any one of the longitudinal sections of the brush plate 10.

Therefore, the dimension of the bristle tufts 20 in the length direction of the brush plate 10 is made larger than the dimension of the bristle tufts 20 in the width direction of the brush plate 10, so that the contact area of the bristles with the teeth during the inward or outward step each time the brush is returned from side to side can be increased to improve the brushing efficiency.

As shown in fig. 6, the present utility model also proposes an electric toothbrush 1000.

0 as shown in fig. 6, an electric toothbrush 1000 according to an embodiment of the present utility model includes a handle 200 and any of the above

The brush head 100 of the embodiment, the brush head 100 comprises a brush rod 40, a brush plate 10 is connected to one end of the length of the brush rod 40, and a handle 200 is connected to the other end of the length of the brush rod 40.

Thus, the brush plate 10 may be coupled to the handle 200 by the brush bar 40 so that a user may grasp the handle 200 to achieve cleaning of teeth using the electric toothbrush 1000.

5 preferably, the handle 200 is provided with an output shaft which is detachably connected to the brush head 100, so that the user is facilitated

The brush head 100 can be removed to replace the brush head 100, thereby facilitating the reduction of the use cost of the user.

An electric toothbrush 1000 in accordance with an embodiment of the present utility model is provided by providing the tips 202 of any of the first bristle tufts 21

Are projected from the first line L1 toward the front side 101 so that, when the user brushes his or her teeth, the user brushes his or her teeth close to the inner side

The part of the bristle tufts 20 at the head can be fully contacted with the teeth, and the part 0 of the bristle tufts 20 at the tail can be fully contacted with the teeth when brushing the teeth near the outer side, so that the bristle tufts 20 can be effectively used in the whole tooth brushing process

Is contacted with teeth, thereby effectively improving the tooth brushing effect.

In the description of the present utility model, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical

The directions or positional relationships indicated by straight "," horizontal "," top "," bottom "," inner "," outer "," clockwise "," counterclockwise "," axial 5 "," radial "," circumferential ", etc. are based on the directions or positional relationships shown in the drawings,

it is used merely for convenience in describing the utility model and to simplify the description and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the utility model.

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 weight

The number of technical features indicated is indicated either explicitly or implicitly. Thus, feature 0, which defines "first", "second", may explicitly or implicitly include one or more such features. In the description of the present utility model, "a plurality of

Meaning two or more, unless explicitly defined otherwise.

In the present utility model, 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 device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features 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 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.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (19)

1. A head (100) for a toothbrush, comprising:

the brush plate (10) is characterized in that the two sides of the thickness of the brush plate (10) are respectively a front side (101) and a back side (102);

-bristle tufts (20), the root (201) of the bristle tufts (20) being connected to the brush plate (10), the tip (202) of the bristle tufts (20) extending to the front side (101) of the brush plate (10), the bristle tufts (20) being plural and comprising plural first bristle tufts (21) and plural second bristle tufts (22), the plural second bristle tufts (22) surrounding the plural first bristle tufts (21) at intervals along the direction of extension of the edge contour of the front side (101) of the brush plate (10);

wherein a first projection plane extending along the thickness direction of the brush plate (10) is taken as a length center line of the brush plate (10), in the orthographic projection of the brush head (100) on the first projection plane, two second bristle tufts (22) which are farthest apart along the length direction of the brush plate (10) are positioned at two sides of all the first bristle tufts (21), and the connection line of the tips (202) of the two second bristle tufts (22) which are farthest apart along the length direction of the brush plate (10) is a first connection line (L1), and the tips (202) of any first bristle tuft (21) are protruded out of the first connection line (L1) towards the front side (101).

2. The brush head (100) of a toothbrush according to claim 1, characterized in that in an orthographic projection of the brush head (100) on the first projection plane, tips (202) of the plurality of first bristle tufts (21) protrude from a normal height of the first connecting line (L1) toward a front side (101) gradually decrease in a direction from a center to an edge of the brush plate (10).

3. The brush head (100) of a toothbrush according to claim 1, characterized in that a second projection plane extending in the thickness direction of the brush plate (10) is taken by a width center line of the brush plate (10), in an orthographic projection of the brush head (100) on the second projection plane, two second bristle tufts (22) farthest in the width direction of the brush plate (10) are located on both sides of all the first bristle tufts (21), and tips (202) of two second bristle tufts (22) farthest in the width direction of the brush plate (10) are connected as a second connection line (L2), and tips (202) of any of the first bristle tufts (21) protrude from the second connection line (L2) toward the front side (101).

4. A toothbrush head (100) according to claim 3, characterized in that the tips (202) of the plurality of the first bristle tufts (21) protrude from the normal height of the second line (L2) towards the front side (101) in an orthographic projection of the head (100) on the second projection plane, gradually decreasing in a direction from the center to the edge of the brush plate (10).

5. A brush head (100) according to claim 3, characterized in that the root portions (201) of the two second bristle tufts (22) furthest apart in the width direction of the brush plate (10) are furthest apart by 10mm-15mm in an orthographic projection of the brush head (100) on the second projection plane.

6. The brush head (100) of the toothbrush of claim 1 wherein the tips (202) of all of the second bristle tufts (22) lie in the same plane.

7. The brush head (100) of a toothbrush according to claim 6, characterized in that the tips (202) of any of the first bristle tufts (21) each protrude from the set plane towards the front side (101).

8. The brush head (100) of a toothbrush according to claim 7 wherein the tip (202) of the first bristle tuft (21) is a first height with respect to the normal height of the projection of the set plane, the first heights of the plurality of first bristle tufts (21) in either cross-section or either longitudinal section of the brush plate (10) decreasing progressively in a direction from the center to the edge of the brush plate (10).

9. The brush head (100) of a toothbrush according to claim 8 wherein the first height of the plurality of first bristle tufts (21) in either cross-section or either longitudinal section of the brush plate (10) increases progressively in a direction from the center to the edge of the brush plate (10).

10. The toothbrush head (100) of claim 1, wherein the front side (101) surface of the brush plate (10) is planar, the tips (202) of the first bristle tufts (21) protrude a second height relative to the front side (101) surface, the tips (202) of the second bristle tufts (22) protrude a third height relative to the front side (101) surface, and either of the second heights is greater than either of the third heights.

11. The brush head (100) of a toothbrush according to claim 10 wherein the second height of the plurality of first bristle tufts (21) in either cross-section or either longitudinal section of the brush plate (10) decreases gradually in a direction from the center to the edge of the brush plate (10).

12. The brush head (100) of the toothbrush of claim 11, wherein the difference between the second height and the third height is 0.5mm-2.5mm.

13. The brush head (100) of a toothbrush according to claim 10, characterized in that the brush plate (10) has a plurality of implantation holes (30), a plurality of the bristle tufts (20) are arranged in one-to-one correspondence with a plurality of the implantation holes (30), roots (201) of the bristle tufts (20) are connected to the respective implantation holes (30), and axes of the implantation holes (30) extend in a direction perpendicular to a surface of the front side (101).

14. The brush head (100) of a toothbrush according to any one of claims 1-13 wherein the brush plate (10) has a plurality of implantation holes (30) thereon, a plurality of the bristle tufts (20) being disposed in one-to-one correspondence with a plurality of the implantation holes (30), the roots (201) of the bristle tufts (20) being connected to the respective implantation holes (30), the axes of the plurality of implantation holes (30) being parallel.

15. The brush head (100) of a toothbrush according to any one of claims 1-13 wherein a plurality of the first bristle tufts (21) constitute a plurality of columns arranged along the length of the brush plate (10), each column comprising a plurality of the first bristle tufts (21) arranged along the width of the brush plate (10); and/or a plurality of the first bristle tufts (21) constitute a plurality of rows arranged in the width direction of the brush plate (10), each row including a plurality of the first bristle tufts (21) arranged in the length direction of the brush plate (10).

16. The brush head (100) of a toothbrush according to any one of claims 1-13 wherein the spacing of the roots (201) of any adjacent two of the bristle tufts (20) is less than the equivalent diameter of the roots (201) of any one of the bristle tufts (20).

17. The brush head (100) of a toothbrush according to any one of claims 1-13 wherein the minimum distance between the second bristle tuft (22) and the edge of the brush plate (10) is 0.3mm-1mm.

18. The brush head (100) of a toothbrush according to any one of claims 1-13, characterized in that the spacing of the two bristle tufts (20) furthest apart in the length direction of the brush plate (10) is greater than the spacing of the two bristle tufts (20) furthest apart in the width direction of the brush plate (10); and/or the number of the plurality of bristle tufts (20) arranged in the longitudinal direction of the brush plate (10) on any cross section of the brush plate (10) is larger than the number of the plurality of bristle tufts (20) arranged in the width direction of the brush plate (10) on any longitudinal section of the brush plate (10).

19. An electric toothbrush (1000), characterized by comprising a handle (200) and a brush head (100) according to any of claims 1-18, the brush head (100) comprising a brush rod (40), the brush plate (10) being connected at one end of the length of the brush rod (40), the handle (200) being connected at the other end of the length of the brush rod (40).