CN216908209U - Brush head device of electric toothbrush - Google Patents

Abstract

The utility model provides a brush head device of an electric toothbrush, which comprises a brush head shaft body and a plurality of brush hair units, wherein the brush head shaft body can axially rotate around the extension direction of the brush head shaft body under the action of external drive; set up a plurality of brush hair units on the first axis of brush body, each brush hair unit interval sets up, makes the tooth can get into between the adjacent brush hair unit, when the first axis of brush body is rotatory, not only can make every brush hair unit can both enter into the gap of tooth and clean, avoids the brush hair to carry out direct friction to the flank of tooth moreover and causes the tooth damage, and makes the hair shaft of brush hair clean the flank of tooth, has improved the clean effect of brush head by a wide margin.

Description

Brush head device of electric toothbrush

Technical Field

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

Background

In modern society, consumers generally use a toothbrush to brush their teeth to protect their teeth in order to maintain their health. Meanwhile, with the development of science and technology, people do not need to brush teeth manually, and the electric toothbrush with better tooth brushing effect also becomes a popular product on the market.

The electric toothbrush generally comprises a handle with a built-in motor and a detachable and replaceable brush head, wherein the motor in the handle can drive the brush head to rotate or vibrate, so that teeth are cleaned.

At present, the head of a power toothbrush is also densely populated with tufts of bristles on the surface of the head, as in conventional toothbrushes. However, the brush head is generally applied to the electric toothbrush and has some problems. Because the electric toothbrush vibrates or rotates at a higher frequency and faster speed, when the bristles are stiffer, the high frequency cleaning can cause damage to the tooth surfaces; meanwhile, the bristles are densely distributed, so that the bristles are difficult to actually enter gaps between teeth, and the cleaning in the gaps between the teeth is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a brush head device of an electric toothbrush capable of effectively cleaning gaps between teeth.

The technical scheme of the utility model is realized as follows: the utility model provides a brush head device of an electric toothbrush, which comprises a brush head shaft body and a plurality of brush hair units, wherein the brush head shaft body can axially rotate around the extension direction of the brush head shaft body under the action of external drive, the plurality of brush hair units are sequentially arranged on the peripheral wall of the brush head shaft body along the extension direction of the brush head shaft body, the adjacent brush hair units are arranged at intervals, and the plurality of brush hair units are circumferentially arranged around the axial projection of the brush head shaft body along a plurality of projections of the brush head shaft body on the same plane along the extension direction of the brush head shaft body.

In addition to the above technical means, preferably, the extending direction of each brush unit and the extending direction of the brush shaft are arranged alternately.

Further preferably, the projections of the brush units on the same plane along the extension direction of the brush head shaft body intersect with the central point of the axial projection of the brush head shaft body on the same plane.

Further preferably, the included angles of the projection directions of the adjacent two bristle units on the plane along the extension direction of the shaft body of the brush head are the same.

More preferably, the extending direction of each brush unit is perpendicular to the extending direction of the shaft of the brush head.

On the basis of the above technical solution, it is preferable that the distance between two adjacent bristle units is not more than 10 mm.

On the basis of the above technical scheme, preferably, any two bristle units are arranged at intervals along the projection of the extension direction of the brush head shaft body on the same plane.

On the basis of the above technical solution, preferably, the number of the plurality of bristle units arranged around the axial projection of the brush head shaft body is not more than twelve.

On the basis of the above technical solution, preferably, the brush head shaft body can rotate along a clockwise axial direction or rotate along a counterclockwise axial direction around the extending direction of the brush head shaft body.

Compared with the prior art, the brush head device of the electric toothbrush has the following beneficial effects:

(1) according to the utility model, the plurality of brushing units are arranged on the shaft body of the brush head, and the brushing units are arranged at intervals, so that teeth can enter between the adjacent brushing units, when the shaft body of the brush head rotates, each brushing unit can enter into gaps of the teeth for cleaning, and the teeth are prevented from being damaged due to direct friction of the brushing on the tooth surface, so that the tooth surface is cleaned by the brushing body, and the cleaning effect of the brush head is greatly improved.

(2) A plurality of brush hair units are heliciform align to grid on the first axis body of brush, when guaranteeing to clear the effect of brushing, the brush hair unit that needs is less, low in production cost is honest and clean, because of brush hair unit distributes unevenly when can avoid brushing first axis body high frequency rotation in addition, causes the unstable problem that produces polarization and damage of brush head focus.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a brush head apparatus of the present invention;

FIG. 2 is an enlarged perspective view of a portion of the brushhead apparatus of the present invention;

FIG. 3 is an axial cross-sectional view of the brushhead apparatus of the utility model;

FIG. 4 is an axial projection of one embodiment of the brushhead apparatus of the present invention;

FIG. 5 is an axial projection view of another embodiment of the brushhead apparatus of the utility model;

figure 6 is an axial projection schematic view of another embodiment of the brushhead apparatus of the utility model.

In the figure: 1. a brush head shaft body; 2. a bristle unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 and fig. 2, the brush head device of the electric toothbrush of the present invention includes a brush head shaft 1 and a plurality of brush units 2.

Wherein, brush head axis body 1 can be around the extending direction axial rotation of brush head axis body 1 under the external drive effect. Be used for driving first 1 pivoted external equipment of brush body is rotating electrical machines, and the motor is generally installed in the handle casing, and the tip of handle can be stretched out to the output shaft of motor to can be with the first cartridge of brush body axis body 1 on the output shaft of motor, make the motor drive first axis body of brush 1 and rotate. Preferably, the brush head shaft body 1 can rotate around the extending direction of the brush head shaft body 1 along the clockwise axial direction or rotate along the counterclockwise axial direction, that is, the brush head shaft body 1 can rotate positively or negatively, or the positive rotation and the negative rotation can be switched continuously.

A plurality of brush hair units 2 set gradually on the periphery wall of brush head axis body 1 along the 1 extending direction of brush head axis body, and 2 intervals of adjacent brush hair unit set up, and a plurality of projections circumference of brush hair unit 2 along the 1 extending direction of brush head axis body on the coplanar set up around the axial projection of brush head axis body 1. It should be noted that, on the traditional brush head, although a plurality of tufts of bristles are also arranged in the same mounting point, the number of tufts of bristles in a single mounting point is much smaller than that of the bristles in the utility model, and because the end portions of the tufts of bristles are scattered on the traditional brush head, the end portions of adjacent bristles are mutually attached, and the mounting points of the bristles are arranged more closely; in the first embodiment of the present invention, compared with a conventional brush head, the bristle units 2 have a larger radial width, and the distance between the bristle units 2 is also larger, so that when the brush head shaft 1 drives the bristle units 2 to rotate, teeth pass through the adjacent bristle units 2, and therefore the adjacent bristle units 2 can clean both sides of the teeth, and meanwhile, because the bristle units 2 have a larger interval, the bristles of the bristle units 2 can better enter gaps between adjacent teeth, so that the gaps between the teeth can be cleaned.

In addition, in this embodiment, a plurality of brush hair units 2 set gradually on the periphery wall of first axis body 1 along first axis body 1 extending direction of brush, a plurality of brush hair units 2 set up around the axial projection of first axis body 1 along a plurality of projection circumference of first axis body 1 extending direction on the coplanar, it is consequently obvious that a plurality of brush hair units 2 are that the heliciform of single row is laid on the periphery wall of first axis body 1 of brush, although also can lay the multirow spiral, but a plurality of brush hair units 2 that are single row spiral setting on the one hand are under the high-speed rotation along with first axis body 1 of brush, better round brush effect has been formed, on the other hand also can save manufacturing cost, and reduce the production degree of difficulty.

In the second embodiment of the present invention, the extending direction of each brush unit 2 is staggered with the extending direction of the brush shaft 1.

Specifically, as shown in fig. 1 and in conjunction with fig. 3, projections of the brush units 2 on the same plane along the extending direction of the brush shaft 1 intersect with the central point of the axial projection of the brush shaft 1 on the same plane; furthermore, the included angles of the projection of the adjacent two brush hair units 2 on the plane along the extension direction of the brush head shaft body 1 are the same; therefore, it can be seen that the bristle units 2 are uniformly arranged on the outer peripheral wall of the brush head shaft body 1, so that the center of gravity of the whole brush head device is located on the central axis of the brush head shaft body 1, and the problem that the brush head shaft body 1 is damaged due to polarization generated in high-frequency rotation can be avoided.

As an alternative embodiment, the extending direction of each brush unit 2 is perpendicular to the extending direction of the brush shaft body 1.

In the third embodiment of the present invention, the distance between two adjacent brush units 2 is not more than 10 mm; it should be noted that, adult's molar and incisor tooth broad, generally at 8-10mm, the incisor tooth is narrower, about 5mm, it has the interval to set up between adjacent brush hair unit 2 in this embodiment, its aim at, make brush hair unit 2 under the high-speed rotation along with brush head axis body 1, the tooth can pass between two adjacent brush hair unit 2, and the both sides of tooth can hug closely the brush hair shaft of brush hair unit 2 simultaneously, thereby brush hair unit 2 can carry out effectual cleaning to the side of tooth, the brush hair can also get into the gap of adjacent tooth simultaneously, clean the interdental space, the cleaning effect of brushing the head device has been strengthened greatly. In addition, in the children style of the product, the distance between two adjacent brush units 2 is correspondingly reduced according to the standard tooth width of the children.

In a fourth embodiment of the present invention, as shown in fig. 1, with reference to fig. 4, 5 and 6, the number of the plurality of bristle units 2 disposed around the axial projection of the shaft 1 of the brush head is not more than twelve; simultaneously, two arbitrary brush hair units 2 are all set up at the interval along the projection of brush head axis body 1 extending direction on the coplanar, have restricted the spiral and have encircleed the brush hair unit 2's that brush head axis body 1's periphery week can set up quantity. Generally, six to eight brush units 2 are provided around the outer peripheral wall of the brush shaft 1, and about twelve brush units can be provided at the limit because of the limitation of the length and radial thickness of the brush shaft 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. A brush head device of an electric toothbrush is characterized in that: including first axis body (1) of brush and a plurality of brush hair unit (2), first axis body (1) of brush can be around the extending direction axial rotation of first axis body (1) under the outside drive effect, and is a plurality of brush hair unit (2) set gradually on the periphery wall of first axis body (1) of brush along first axis body (1) extending direction, and are adjacent brush hair unit (2) interval sets up, and is a plurality of brush hair unit (2) are along the axial projection setting of first axis body (1) a plurality of projection circumference of first axis body (1) of brush on the coplanar of first axis body (1) extending direction.

2. The brushhead apparatus of an electric toothbrush of claim 1, wherein: the extending direction of each brush hair unit (2) and the extending direction of the brush head shaft body (1) are arranged in a staggered mode.

3. The brushhead apparatus of an electric toothbrush of claim 2, wherein: and projections of the brush hair units (2) on the same plane along the extension direction of the brush head shaft body (1) are crossed with the central point of the axial projection of the brush head shaft body (1) on the same plane.

4. A brushhead apparatus of an electric toothbrush according to claim 3, wherein: the included angles of the adjacent two brush hair units (2) in the extension direction of the projection of the brush head shaft body (1) on the plane are the same.

5. The brushhead apparatus of an electric toothbrush of claim 2, wherein: the extending direction of each brush hair unit (2) is perpendicular to the extending direction of the brush head shaft body (1).

6. The brushhead apparatus of an electric toothbrush of claim 1, wherein: the distance between two adjacent bristle units (2) is not more than 10 mm.

7. The brushhead apparatus of an electric toothbrush of claim 1, wherein: any two brush hair units (2) are arranged at intervals along the projection of the extension direction of the brush head shaft body (1) on the same plane.

8. The brushhead apparatus of an electric toothbrush of claim 1, wherein: the number of the plurality of brush hair units (2) arranged around the axial projection of the brush head shaft body (1) is not more than twelve.

9. The brushhead apparatus of an electric toothbrush of claim 1, wherein: the brush head shaft body (1) can rotate around the extension direction of the brush head shaft body (1) along the clockwise axial direction or rotate along the anticlockwise axial direction.

Images