CN216021487U - Toothbrush head and electric toothbrush - Google Patents

Abstract

The utility model discloses a toothbrush head, which comprises a brush plate and bristle tufts, wherein the bristle tufts are fixed on the brush plate; the end surface of the bristle cluster back to the brush plate is formed into a brush surface; at least one side of the brush surface is bent towards the direction far away from the brush plate so as to intersect with the outer side surface of the bristle cluster to form a tip, and the tip is a round angle. The toothbrush head can improve the abrasion of the tips of the bristle tufts to gums and can avoid the phenomenon of bleeding gums. The utility model also discloses a toothbrush.

Description

Toothbrush head and electric toothbrush

Technical Field

The utility model relates to the field of daily supplies, in particular to a toothbrush head and an electric toothbrush.

Background

The toothbrush head comprises a toothbrush board and toothbrush tufts fixed on the toothbrush board, wherein the toothbrush tufts are contacted and rubbed with the surfaces of teeth through the end parts of bristles of the toothbrush tufts, so that dental plaque and dirt on the surfaces of the teeth are removed; whereas bristles of the toothbrush tufts extending outwardly from opposite sides of the bristle tuft are conventionally designed to be longer than bristles of other portions in order to match the shape of the teeth of the oral cavity so that the bristles of the toothbrush tufts can extend between the teeth to clean crevices, such arrangement tends to result in sharp corners on both sides of the bristle tuft, as shown in fig. 7, which contact the gums, resulting in bleeding of the gums due to abrasion of the gums during brushing.

SUMMERY OF THE UTILITY MODEL

To overcome the deficiencies of the prior art, it is a first object of the present invention to provide a toothbrush head and a second object of the present invention to provide a powered toothbrush which improves the abrasion of the tips of the bristle tufts against the gums.

One of the purposes of the utility model is realized by adopting the following technical scheme:

a toothbrush head, comprising:

brushing the board;

a bristle tuft secured to the brush plate; the end surface of the bristle cluster, which faces away from the brush plate, is formed as a brush surface; at least one side of the brush face is bent away from the brush plate to intersect the outer side of the bristle tuft to form a tip, the tip being rounded.

Further, the outer contour of the bristle cluster is the same as the extension track of the outer contour of the brush plate; the bristle tufts are formed with the tips on opposite sides thereof.

Further, the tips are distributed in a length direction of the brush plate.

Further, the value range of the fillet R is 0.3mm-2.0 mm.

Further, the fillet R value ranges from 0.5mm to 1.5 mm.

Further, the fillet R value is 0.5 mm.

Further, all parts of the intersection of the brush surface and the bristle tufts are round corners.

Further, the tip included angle ≈ A satisfies: the angle A is more than or equal to 45 degrees and less than or equal to 80 degrees.

Further, the angle a is 60 °.

The second purpose of the utility model is realized by adopting the following technical scheme:

an electric toothbrush comprises an electric toothbrush handle and the toothbrush head; the electric brush handle is connected with the brush plate.

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

at least one side of the bristle surface of the bristle cluster is bent towards the direction far away from the brush plate and is intersected with the outer side surface of the bristle cluster to form a tip, and the tip is a round angle, so that the end surface of the tip is smooth, and the possibility of gingival bleeding caused by gum bruising due to the fact that the tip collides with the gum is reduced.

Meanwhile, the toothbrush head is connected with the electric toothbrush handle so as to be convenient to hold.

Drawings

FIG. 1 is a schematic view of a toothbrush of the present invention in a disassembled configuration;

figure 2 is a front elevational view of the toothbrush head of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention;

figure 4 is a side elevational view of the toothbrush head of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4 in accordance with the present invention;

figure 6 is a view of the toothbrush head of the present invention in use;

fig. 7 is a view showing a state of use of the conventional toothbrush.

In the figure: 10. brushing the board; 20. a bristle tuft; 21. a bristle tuft body; 22. a tip; 23. brushing the surface; 24. an outer side of the bristle tuft; 30. an electric brush handle; 40. a gum; 50. a tooth.

Detailed Description

As shown in fig. 1-6, a toothbrush head comprising:

a brush plate 10;

a bristle tuft 20, the bristle tuft 20 being secured to the brush plate 10, it being understood that the bristle tuft 20 comprises a plurality of bristles; the end of the bristle tuft 20 facing away from the brush plate 10 is formed as a brush face 23; at least one side of the brush face 23 is bent away from the brush plate 10 to intersect with the outer side 24 of the bristle tuft to form a tip 22; the tip 22 is a round corner, so that the end surface of the tip 22 can be smooth; thus, when the toothbrush head is used, as shown in fig. 6, the end surface of the bristle tuft 20, which is in contact with the gum 40, is smooth, and the possibility of bleeding due to bruising of the bristle tuft 20 to the gum 40 or the like can be reduced.

Further, the outer contour of the bristle tuft 20 is the same as the extended locus of the outer contour of the brush plate 10; the opposite sides of the bristle tuft 20 are formed with tips 22, it can be understood that the opposite sides of the brush face 23 are bent in the direction away from the brush plate 10 to form tips 22 at the opposite two positions of the bristle tuft 20, and here, the opposite sides of the brush face 23 are bent in the direction away from the brush plate 10 to be more conformable to the arrangement contour of the teeth 50, and at the same time, the tips 22 are formed at the two sides of the bristle tuft 20, and when the toothbrush head is inserted into the oral cavity, the two tips 22 can be inserted into the slits between the teeth at the two positions at the same time to achieve better cleaning effect.

In conventional use, the brush plate 10 extends laterally into the mouth, and preferably the tips 22 are distributed along the length of the brush plate 10, so as to ensure that the tips 22 of the bristle tufts 20 correspond to the interdental spaces.

Specifically, the bristle tufts 20 include at least two bristle tuft bodies 21, the bristle tuft bodies 21 including at least two bristles; at least two clusters of bristle tuft bodies 21 are distributed from one side of the brush plate 10 to the other side of the brush plate 10; thus, the bristle tufts 20 are divided into at least two bristle tuft bodies 21, the bristles can be inserted into the bristle plate in batches, and each bristle tuft body 21 comprises at least two bristles, so that the bristles can be inserted into the bristle plate without one bristle tuft body during processing, and the time is saved as much as possible.

Preferably, the brush face 23 and the outer side of the bristle tufts 20 extending around the periphery of the brush plate 10 are rounded at all portions, so that bruising is more completely prevented.

Further, the fillet R value ranges from 0.3mm to 2.0 mm.

Preferably, the rounded corners R have a value in the range of 0.5mm to 1.5 mm.

More preferably, the fillet has an R value of 0.5 mm.

Further, the included angle ≈ A of the tip 22 satisfies: the angle A is more than or equal to 45 degrees and less than or equal to 80 degrees; it should be noted that, in order to ensure that the tips 22 of the bristle tufts 20 can extend into the interdental spaces, experiments show that when the angle a is greater than 80 °, the tips 22 of the bristle tufts 20 cannot well extend into the interdental spaces, which affects the cleaning effect; meanwhile, when the included angle A of the tip 22 is less than 45 degrees, the bristles of the part, corresponding to the tip 22, of the bristle cluster 20 are longer, the bristles are easy to fall down in the using process and cannot smoothly extend into slits between teeth, the contact force of the middle part of the bristle cluster to the teeth is weaker, the cleaning effect is uneven, and the enamel on the surfaces of the teeth is easily damaged and the phenomenon of gingival bleeding is caused.

It should be noted that the intersection of the two surfaces passing through the tip 22 is respectively made as tangent lines of the two surfaces of the tip 22, the two tangent lines intersect at a point a, the two tangent lines intersect at a point B and a point C respectively at the brush plate 10, and at this time, the included angle ═ BAC is equal to the included angle ═ a of the tip 22.

Preferably, angle a is 60 °.

The utility model also discloses a test of the toothbrush head so as to verify the anti-collision effect of the toothbrush head; the specific test operation is as follows: selecting a piece of membrane, and selecting a square membrane with the shape of 100mm x 100mm in the test; clamping and fixing the periphery of the diaphragm to enable the diaphragm to be flatly unfolded and uniformly stressed, wherein the diaphragm is equivalent to the surface of the gum 40; the brush face 23 of the bristle tuft 20 of the toothbrush head to be tested is then brought close to and pressed against the membrane, the force of the pressing here preferably being the average brushing force; then fixing the position of the toothbrush head, driving the toothbrush head to vibrate by adopting a driver, and recording the time length from the vibration of the toothbrush head to the perforation of the membrane; the toothbrush heads with different specifications are respectively tested according to the operation, and specifically, the toothbrush heads with different specifications are obtained by setting one or both of a fillet R value of a tip 22 of the toothbrush head to be tested and a degree of & lt A; representative test results data were selected to produce table one, where it is noted that all toothbrush heads to be tested were formed with tips 22 on opposite sides.

Watch 1

Looking at table one, the first group, the second group, the third group and the fourth group are respectively corresponding to toothbrush heads with fillet R value of 0mm, 0.5mm, 1.0mm and 1.5mm, compare the second group, the third group and the fourth group data with the first group data respectively, can learn, the second group, the toothbrush heads corresponding to the third group and the fourth group lead to the obvious prolongation of the perforation time of the diaphragm relative to the toothbrush heads of the first group, thus, the second group, the toothbrush heads corresponding to the third group and the fourth group have the effect of obviously reducing the abrasion damage caused to the diaphragm, therefore, the fillet R values are respectively corresponding to toothbrush heads with fillet R value of 0.5mm, 1.0mm and 1.5mm, compared with the toothbrush heads with fillet R value of 0mm, the toothbrush has the effect of obviously improving the abrasion damage caused to gum 40.

Referring to table one again, free combination of any one of fillet R values of 0.5mm, 1.0mm and 1.5mm and any one of degrees of & A of 45 degrees, 60 degrees and 80 degrees is listed in table one, and it can be known from table one that the toothbrush head of the free combination causes diaphragm perforation time to be more than or equal to 2min, and the preferred tooth brushing duration of the dentistry suggests about 2 minutes, so that the effect of avoiding abrasion under the healthy tooth brushing duration can be achieved by any one group of combination.

Furthermore, as can be known from the table i, when the fillet R value is 0.5mm and the angle a is 45 °, the membrane perforation time is 4min, which is slightly greater than the preferred tooth brushing time of 2min, and errors caused by different tooth brushing strengths and tooth brushing time deviations can be compensated, so as to improve the applicability of the membrane perforation time; meanwhile, the longer the diaphragm perforation time is, the smaller the friction of the tips 22 of the bristle tufts 20 to the diaphragm in unit time is, and at this time, the diaphragm perforation time is 4min, so that the friction of the tips 22 of the bristle tufts 20 to the diaphragm can be ensured, and the cleaning force is prevented from being influenced by the weak friction of the tips 22 of the bristle tufts 20 to the gum 40.

The utility model also discloses an electric toothbrush, which comprises an electric toothbrush handle 30 and the toothbrush head; the power brush handle 30 is connected to the brush plate 10.

Specifically, the opposing sides of the bristle tufts 20 are the sides thereof that are closer to and farther from the motorized handle 30.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims (10)

1. A toothbrush head, comprising:

a brush plate (10);

a bristle tuft (20), the bristle tuft (20) being fixed to the brush plate (10); the end face of the bristle tuft (20) facing away from the brush plate (10) is formed as a brush face (23); at least one side of the brush surface (23) is bent away from the brush plate (10) to intersect with the outer side surface (24) of the bristle tuft to form a tip (22), and the tip (22) is a round angle.

2. Toothbrush head according to claim 1, characterised in that the outer contour of the bristle tufts (20) has the same course as the outer contour of the brush plate (10); the bristle tufts (20) are formed with the tips (22) on opposite sides thereof.

3. A toothbrush head according to claim 2 characterised in that the tips (22) are distributed along the length of the brush plate (10).

4. A toothbrush head according to claim 2 characterised in that the rounded R ranges from 0.3mm to 2.0 mm.

5. A toothbrush head according to claim 4 characterised in that the rounded R ranges from 0.5mm to 1.5 mm.

6. A toothbrush head according to claim 5 characterised in that the rounded R value is 0.5 mm.

7. A toothbrush head according to claim 2 characterised in that the intersection of the brush face (23) with the bristle tufts (20) is rounded at all points.

8. A toothbrush head according to any one of claims 2 to 7 characterised in that the angle < A > between the tips (22) satisfies: the angle A is more than or equal to 45 degrees and less than or equal to 80 degrees.

9. A toothbrush head according to claim 8 characterised in that the angle A is 60 °.

10. A powered toothbrush comprising a powered handle (30) and a toothbrush head according to any one of claims 1 to 9; the electric brush handle (30) is connected with the brush plate (10).

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