CN212280373U - Brush body and toothbrush - Google Patents

Abstract

The application is suitable for the technical field of cleaning tools, and provides a brush body and a toothbrush, which comprise a toothbrush head and a toothbrush handle, wherein the toothbrush head and the toothbrush handle extend along the longitudinal direction; or the outer wall of the brush handle is provided with a first limiting groove, and the inner wall of the toothbrush head is provided with a limiting block; the limiting block can be longitudinally inserted into the first limiting groove and circumferentially rotated to form limiting fit with the first limiting groove in the longitudinal direction; the side of the first limiting groove is provided with a limiting structure, and the limiting block edge can form circumferential limiting fit with the limiting structure after rotation. Through setting up the first spacing groove of stopper cooperation, stopper connection limit structure, realize toothbrush head and brush holder along vertically upwards with along ascending spacing in week, improve the firm nature of being connected of toothbrush head and brush holder, and simplified the installation of toothbrush head and brush holder and dismantled the operation, improved the use convenience of the brush body.

Description

Brush body and toothbrush

Technical Field

The application belongs to the technical field, and more particularly relates to a brush body and a toothbrush.

Background

Toothbrushes typically include a head and a handle with an extension shaft at one end, which is removably attached to the head to allow for replacement of the head.

At present, the connection mode of a toothbrush head and an extension shaft has two modes:

one is that the extending shaft is clamped into the toothbrush head along the longitudinal direction and forms interference fit with the toothbrush head, and the connection firmness is lower. After the toothbrush is used for a long time, the toothbrush head and the toothbrush handle are easy to loosen, and the use comfort of the toothbrush is affected.

The other is that the extension shaft and the toothbrush head form a threaded fit, and after the toothbrush head is replaced for many times, the locking positions of the toothbrush head and the extension shaft can be changed, so that the specific orientation of the toothbrush head and the toothbrush handle is influenced. And the extension shaft enters the toothbrush head through continuous rotation to form threaded connection with the toothbrush head, so that the assembly and disassembly operations of the toothbrush head and the toothbrush handle are very troublesome and time-consuming, and the use convenience of the toothbrush is reduced.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the application is as follows: provides a brush body, aiming at solving the technical problems that the disassembly and the assembly of a toothbrush head and a toothbrush handle are troublesome and the connection firmness is low in the prior art.

In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:

a brush body is provided, which comprises a toothbrush head and a brush handle which both extend along the longitudinal direction, wherein one end of the toothbrush head is provided with a connecting groove for accommodating one end of the brush handle; the inner wall of the toothbrush head is provided with a first limiting groove, and one end of the toothbrush handle is provided with a limiting block; or the outer wall of the brush handle is provided with a first limiting groove, and the inner wall of the toothbrush head is provided with a limiting block; the limiting block can be longitudinally inserted into the first limiting groove and circumferentially rotated to form limiting fit with the first limiting groove in the longitudinal direction;

first spacing groove side is equipped with limit structure, the stopper can be rotatory the back with limit structure forms ascending spacing cooperation in week.

In one embodiment, the first limiting groove comprises a first groove section and a second groove section which are communicated with each other, and the length of the second groove section in the circumferential direction is greater than that of the first groove section in the circumferential direction;

the limiting block comprises a first lug and a second lug, and the second lug is connected with the first lug or arranged beside the first lug; the second lug can be inserted into the second groove section from the first groove section and forms longitudinal limit fit with the second groove section, and the first lug can form circumferential limit fit with the limit structure.

In one embodiment, two ends of the second groove section in the longitudinal direction are respectively stopped by a first limiting wall, and the second projection is tightly pressed between the two first limiting walls when being inserted into the second groove section.

In one embodiment, the first bump is connected to the second bump, and the first bump and the second bump are connected to form an "L" shape or a "T" shape.

In one embodiment, the limiting structure comprises a convex part arranged beside the first limiting groove, the inner wall of the toothbrush head is formed with a second limiting wall, the convex part and the second limiting wall are circumferentially spaced to form a second limiting groove, and the first lug is circumferentially limited in the second limiting groove.

In one embodiment, the limiting structure comprises at least two convex parts arranged at intervals along the circumferential direction, wherein one of the convex parts forms the second limiting groove at intervals with the second limiting wall; at least two convex parts form third limiting grooves at intervals, and the first convex blocks can be alternately limited in the second limiting grooves and the third limiting grooves along the circumferential direction.

In one embodiment, the outer wall of the convex part is provided with a plurality of inclined surfaces which are sequentially connected along the circumferential direction; or the outer wall of the convex part is provided with a circular arc surface.

In one embodiment, one end of the brush handle is provided with an extended shaft, and the brush handle and the extended shaft are connected in a split manner or in an integrated manner; the outer wall of the extension shaft is provided with a limiting block or a first limiting groove.

In one embodiment, the outer peripheral wall of the protruding shaft is circumferentially formed with a first step, and the inner peripheral wall of the toothbrush head is circumferentially formed with a second step, and the first step abuts against the second step in the longitudinal direction.

The application provides a brush body's beneficial effect lies in: compared with the prior art, this application sets up the stopper through one in both at toothbrush head and brush holder, sets up first spacing groove at another person, and sets up limit structure at the side of first spacing groove. When the brush handle is arranged on the toothbrush head, one end of the brush handle is inserted into the connecting groove, and the limiting block is correspondingly inserted into the first limiting groove; then with brush holder and toothbrush head along circumference relative rotation, stopper this moment along vertically spacing in first spacing groove to form toothbrush head and brush holder along vertically ascending spacing, and stopper this moment connects in limit structure, along the ascending spacing of circumference with forming toothbrush head and brush holder, has consequently strengthened the firm nature of being connected of toothbrush head and brush holder, has restricted the locking position of toothbrush head and brush holder, and has avoided toothbrush head and brush holder to produce not hard up. When the toothbrush head and the toothbrush handle are installed, the toothbrush can be realized only by inserting the toothbrush handle into the toothbrush head and then rotating around the toothbrush head; when the toothbrush is disassembled, the toothbrush handle can be taken out from the toothbrush head by rotating the toothbrush head and the toothbrush handle, so that the disassembly and the installation operation of the toothbrush head and the toothbrush handle are very simple, and the use convenience of the toothbrush body is improved.

The present application further provides a toothbrush comprising the brush body of any of the above.

The application provides a toothbrush, set up the stopper through one in toothbrush head and the brush holder at the brush body, set up first spacing groove and limit structure at another person. Brush holder one end is installed in the toothbrush head back, and the stopper is along vertically spacing in first spacing inslot, and the stopper is connected in limit structure in order to form spacing ascending in week to strengthen the toothbrush head of the brush body and the joint strength of brush holder, restricted the locking position of toothbrush head and brush holder, and avoided toothbrush head and brush holder to produce not hard up. When the toothbrush head and the toothbrush handle are installed, the toothbrush handle is inserted into the toothbrush head and then rotates around the toothbrush head; then when dismantling, can take out the brush holder from the toothbrush head through rotatory toothbrush head and brush holder for the dismantlement and the installation operation of toothbrush head and brush holder are all very simple, have improved the use convenience of toothbrush.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a view illustrating a structure of a brush body according to an embodiment of the present disclosure;

FIG. 2 is a perspective view of a toothbrush head of a brush body according to an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a cross-sectional view of a toothbrush head of a brush body according to an embodiment of the present application;

FIG. 5 is a perspective view of a handle of a brush body according to an embodiment of the present disclosure;

FIG. 6 is a partial enlarged view of FIG. 5 at B;

figure 7 is a cross-sectional view of a toothbrush head incorporating a brush body according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1-brush handle; 2-toothbrush head; 21-a connecting groove; 211-a third groove segment; 212-a fourth slot segment; 213-a second step; 22-a first limit groove; 221-a first groove section; 222-a second groove segment; 23-a limiting structure; 231-a convex portion; 2311-inclined plane; 232-a second limit groove; 233-a third limit groove; 24-a first stop wall; 25-a second stop wall; 26-a third limiting wall; 3-extending the shaft; 31-a first shaft section; 32-a second shaft section; 33-a first step; 4-a limiting block; 41-a first bump; 42-a second bump; y-longitudinal direction.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.

Referring to fig. 1 to 6 together, the brush body of the embodiment of the present application includes a head 2 and a handle 1, both the head 2 and the handle 1 extending in a longitudinal direction y. One end of the toothbrush head 2 is provided with a connecting groove 21, and the connecting groove 21 is used for inserting one end of the toothbrush handle 1, so that the toothbrush handle 1 can be inserted into the toothbrush head 2 along the longitudinal direction y and is detachably connected with the toothbrush head 2.

Specifically, one of the toothbrush head 2 and the toothbrush handle 1 is provided with a first limiting groove 22, the other is provided with a limiting block 4, and the first limiting groove 22 is used for being matched with the limiting block 4 to form limiting along the longitudinal direction y. The side of the first limiting groove 22 is provided with a limiting structure 23, and the limiting structure 23 is used for cooperating with the limiting block 4 to form limiting along the circumferential direction. When the brush handle 1 is inserted into the toothbrush head 2 along the longitudinal direction y, the limiting block 4 is inserted into the first limiting groove 22; after the brush handle 1 rotates around the toothbrush head 2 along the circumferential direction for a certain angle, the limiting block 4 also rotates along the circumferential direction for a certain angle correspondingly and is limited in the first limiting groove 22 along the longitudinal direction y; one end part of the limiting block 4 can be inserted into the first limiting groove 22 along the longitudinal direction y and can rotate along the circumferential direction to form limiting fit in the longitudinal direction y in the first limiting groove 22, so that the limiting position of the toothbrush head 2 and the toothbrush handle 1 along the longitudinal direction y is formed; meanwhile, after the limiting block 4 rotates along the circumferential direction, the other end of the limiting block 4 is connected with the limiting structure 23 and forms a limiting fit along the circumferential direction with the limiting structure 23, so that the toothbrush head 2 and the toothbrush handle 1 are limited along the circumferential direction. In this embodiment, one end of the brush handle 1 is installed in the toothbrush head 2, so that the relative movement of the toothbrush head 2 and the brush handle 1 along the longitudinal direction y can be limited, the relative rotation of the toothbrush head 2 and the brush handle 1 along the circumferential direction can be limited, and the connection firmness of the toothbrush head 2 and the brush handle 1 can be enhanced.

Specifically, the steps of installing one end of the brush handle 1 and the toothbrush head 2 are as follows: one end of a brush handle 1 is inserted into a toothbrush head 2, so that a limit block 4 is inserted into a first limit groove 22; then the brush handle 1 and the toothbrush head 2 are rotated relatively along the circumferential direction by a certain angle, so that the limit block 4 is limited in the first limit groove 22, and the limit block 4 is connected to the limit structure 23. The steps of disassembling the brush handle 1 and the toothbrush head 2 are as follows: firstly, the brush handle 1 and the toothbrush head 2 rotate relatively along the circumferential direction for a certain angle, and then the brush handle 1 is taken out from the toothbrush head 2 along the longitudinal direction y, so that the operation is very simple and convenient.

Specifically, please refer to fig. 2 and 4 together, in an embodiment, the first limiting groove 22 is opened on the inner wall of the toothbrush head 2, and the first limiting groove 22 is communicated with the connecting groove 21, so the limiting block 4 is disposed on the outer wall of one end of the toothbrush handle 1, when one end of the toothbrush handle 1 is inserted into the connecting groove 21, the limiting block 4 moves along with the toothbrush handle 1 and is inserted into the first limiting groove 22, and when the toothbrush handle 1 rotates around the toothbrush head 2 along the circumferential direction, the limiting block 4 rotates along with the toothbrush handle 1 along the circumferential direction. Or, in another embodiment, the first limiting groove 22 is opened on the outer wall of the brush handle 1, and the limiting block 4 is disposed on the inner wall of the toothbrush head 2, for this embodiment, the thinning is not performed one by one, and the thinning structure is similar to the embodiment in which the first limiting groove 22 is opened on the inner wall of the toothbrush head 2 and the limiting block 4 is disposed on the outer wall of one end of the brush handle 1.

It should be noted here that the longitudinal direction y refers to the extension trend of the length of the toothbrush head 2 and the handle 1, and here, the toothbrush head 2 and the handle 1 both extend along the longitudinal direction y, and do not limit the linear extension of the toothbrush head 2 and the handle 1, and in fact, the toothbrush head 2 and the handle 1 may extend linearly along the longitudinal direction y, may also extend obliquely, and may even extend along a curve. In which figure 7 is shown a sectional view of the toothbrush head 2 in a direction parallel to the longitudinal direction y, which in this view is vertical. It should be noted that the longitudinal direction y mentioned hereinafter also refers to the same direction as the extension trend of the length of the toothbrush head 2 and the handle 1, and the structure mentioned hereinafter extends along the longitudinal direction y, also refers to the extension of the longitudinal direction y along a straight line, an inclination or a curve, which will not be explained one by one hereinafter.

In the embodiment of the application, one of the toothbrush head 2 and the toothbrush handle 1 is provided with the limiting block 4, the other is provided with the first limiting groove 22, and the side of the first limiting groove 22 is provided with the limiting structure 23. When the brush handle 1 is arranged on the toothbrush head 2, one end of the brush handle 1 is inserted into the connecting groove 21, and the limiting block 4 is correspondingly inserted into the first limiting groove 22; with brush holder 1 again along circumference relative rotation with brush head 2, stopper 4 is spacing in first spacing groove 22 along vertical y this moment, in order to form brush head 2 and brush holder 1 along vertical y spacing, and stopper 4 connects in limit structure 23 this moment, in order to form brush head 2 and brush holder 1 along ascending spacing in week, consequently strengthened the firm nature of being connected of brush head 2 and brush holder 1, avoid brush head 2 and brush holder 1 to produce not hard up, and the locking position of brush head 2 and brush holder 1 has been restricted, can guarantee to change brush head 2 back brush head 2 and brush holder 1's relative position, the comfort level of toothbrush use is improved. Moreover, when the toothbrush head 2 and the toothbrush handle 1 are installed, the toothbrush can be realized only by inserting the toothbrush handle 1 into the toothbrush head 2 and then rotating around the toothbrush head 2; when the toothbrush is disassembled, the toothbrush handle 1 can be taken out from the toothbrush head 2 by rotating the toothbrush head 2 and the toothbrush handle 1, so that the disassembly and the installation operation of the toothbrush head 2 and the toothbrush handle 1 are very simple, and the use convenience of the toothbrush body is improved.

In one embodiment, referring to fig. 3, fig. 3 shows a view in which the first retaining groove 22 is opened on the inner wall of the head 2. The first limiting groove 22 includes a first groove section 221 and a second groove section 222, and the first groove section 221 and the second groove section 222 are connected to each other and connected to the connecting groove 21. The first groove section 221 and the second groove section 222 extend in different lengths in the same direction, specifically, the length of the second groove section extending in the circumferential direction is greater than the length of the first groove section extending in the circumferential direction. Wherein, one end of the first groove section 221 extends to the outside along the longitudinal direction y, so that the stopper 4 can be inserted into the first groove section 221 from the outside, and the other end of the first groove section 221 extends to the second groove section 222 along the longitudinal direction y.

Referring to fig. 6, fig. 6 shows a view of the limiting block 4 disposed on the outer wall of one end of the brush handle 1. The limiting block 4 comprises a first protruding block 41 and a second protruding block 42, and the first protruding block 41 and the second protruding block 42 are both arranged on the outer wall of one end of the brush handle 1. The second bump 42 is connected to the first bump 41, or the second bump 42 is disposed beside the first bump 41.

Specifically, in the present embodiment, the second protrusion 42 can be inserted into the second groove section 22 from the first groove section 221, and form a limit fit with the second groove section 221 in the longitudinal direction y; and the first projection 41 can form a limit fit with the limit structure 23 along the circumferential direction after rotation. Specifically, when one end of the brush holder 1 is inserted into the connecting groove 21 along the longitudinal direction y, the first protrusion 41 and the second protrusion 42 are simultaneously inserted into the first groove section 221 along with the brush holder 1; after the handle 1 and the toothbrush head 2 are rotated relative to each other along the circumferential direction by a certain angle, the first protrusion 41 and the second protrusion 42 are simultaneously rotated with the handle 1 relative to the toothbrush head 2. At this time, the second protrusion 42 rotates along the circumferential direction and is limited in the second groove section 222, so as to realize the limitation of the second protrusion 42 along the longitudinal direction y; and the first protrusions 41 simultaneously rotate in the circumferential direction and are connected to the limiting structure 23, so as to realize the limiting of the first protrusions 41 in the circumferential direction.

Above, the second protrusion 42 is matched with the second slot section 222, and the first protrusion 41 is connected to the limiting structure 23, so that the relative movement of the toothbrush head 2 and the toothbrush handle 1 along the longitudinal direction y is limited, and the relative rotation of the toothbrush head 2 and the toothbrush handle 1 along the circumferential direction is also limited, thereby enhancing the connection firmness of the toothbrush head 2 and the toothbrush handle 1 and improving the use performance of the toothbrush.

In one embodiment, referring to fig. 3 and 4, fig. 3 and 4 show the first retaining groove 22 opened on the inner wall of the toothbrush head 2. Two first limiting walls 24 are formed on the inner wall of the toothbrush head 2, the two first limiting walls 24 are spaced and arranged oppositely, and the two ends of the second groove section 222 along the longitudinal direction y are respectively cut off at one first limiting wall 24. When the second lug 42 and the brush holder 1 rotate around the toothbrush head 2 along the circumferential direction simultaneously, the second lug 42 rotates and enters the second groove section 222 to abut between the two first limiting walls 24, so that the second lug 42 is limited on the two first limiting walls 24 along the longitudinal y direction respectively, the limitation of the relative movement of the toothbrush head 2 and the brush holder 1 along the longitudinal y direction is realized, and the toothbrush head 2 and the brush holder 1 are prevented from loosening after being used for a long time.

In one embodiment, referring to fig. 6, fig. 6 shows a view of the stopper 4 disposed on the outer wall of one end of the handle 1. The first protrusion 41 is connected to the second protrusion 42, and the first protrusion 41 and the second protrusion 42 are integrally formed, so that the connection strength between the first protrusion 41 and the second protrusion 42 is enhanced, and the first protrusion 41 and the second protrusion 42 can rotate simultaneously when the handle 1 rotates around the toothbrush head 2. The length of the first slot section 221 extending in the circumferential direction is smaller than the length of the second slot section 222 extending in the circumferential direction, correspondingly, the length of the first protrusion 41 extending in the circumferential direction is smaller than the length of the second protrusion 42 extending in the circumferential direction, and the second protrusion 42 is connected to the first protrusion 41 in the longitudinal direction y, so that the first protrusion 41 and the second protrusion 42 can be inserted into the first slot section 221 in the longitudinal direction y, and the second protrusion 42 can be fitted into the second slot section 222.

Specifically, in this embodiment, the direction of relative rotation in the circumferential direction when the toothbrush head 2 and the handle 1 are mounted is set to be a first rotation direction, and the direction of relative rotation in the circumferential direction when the toothbrush head 2 and the handle 1 are dismounted is set to be a second rotation direction, and the first rotation direction and the second rotation direction are opposite. The first bump 41 and the second bump 42 are connected to form an "L" shape, and the second bump 42 extends from one end of the first bump 41 along the second rotation direction; alternatively, the second protrusion 42 may be disposed at one end of the first protrusion 41 to extend along the first rotation direction.

Or, alternatively, in another embodiment, the first bump 41 is connected with the second bump 42 and forms a "T" shape.

In one embodiment, referring to fig. 3 and 4, fig. 3 and 4 show the first retaining groove 22 opened on the inner wall of the toothbrush head 2. The limiting structure 23 is arranged on the inner wall of the toothbrush head 2 and beside the first limiting groove 22. The limiting structure 23 comprises a convex portion 231 arranged at the side of the first limiting groove 22, a second limiting wall 25 is formed on the inner wall of the toothbrush head 2, the second limiting wall 25 and the convex portion 231 are arranged at intervals, and a second limiting groove 232 is formed between the second limiting wall 25 and the convex portion 231 at intervals. When the brush handle 1 is installed with the brush head 2, when the brush handle 1 and the brush head 2 rotate relatively along the circumferential direction, the first protruding block 41 rotates along the circumferential direction and passes through the outer wall of the protruding part 231 to tightly abut between the protruding part 231 and the second limit wall 25, namely the first protruding block 41 is limited in the second limit groove 232 along the circumferential direction, so that the brush head 2 and the brush handle 1 are limited along the circumferential direction.

Specifically, the second limiting groove 232 extends along the longitudinal direction y, one end of the second limiting groove 232 along the longitudinal direction y extends to the outside of the opening of the connecting groove 21, and the other end of the second limiting groove 232 along the longitudinal direction y is communicated with the second groove section 222. The protruding portion 231 extends along the longitudinal direction y, and the outer wall of the other end of the protruding portion 231 along the longitudinal direction y and the wall surface of the first limiting wall 24 are on the same plane, when the second protruding block 42 is rotated along the circumferential direction to tightly abut between the two first limiting walls 24, at least part of the second protruding block 42 can also tightly abut against the outer wall of one end of the protruding portion 231 at the same time, so that the limiting strength of the second protruding block 42 along the longitudinal direction is enhanced.

In an embodiment, referring to fig. 3 and fig. 4, the limiting structure 23 includes at least two protrusions 231 disposed beside the first limiting groove 22, and the at least two protrusions 231 are disposed at intervals along the circumferential direction. The second limiting wall 25 is spaced apart from one of the protrusions 231, and the second limiting wall 25 is spaced apart from one of the protrusions 231 to form a second limiting groove 232. The at least two protrusions 231 are spaced apart from each other by two to form third limiting grooves 233, thereby forming at least one third limiting groove 233. The third limiting groove 23 also extends along the longitudinal direction y, one end of the third limiting groove 233 extends along the longitudinal direction y to the outside of the opening of the connecting groove 21, and the other end of the third limiting groove 233 along the longitudinal direction y is communicated with the second groove section 222. When the toothbrush head 2 and the toothbrush handle 1 rotate relatively in the circumferential direction, the first protrusion 41 can rotate in the circumferential direction and can be tightly pressed between the two protrusions 231 through the outer wall of one protrusion 231, that is, the first protrusion 41 is limited in the third limiting groove 233 in the circumferential direction. When the number of the third limiting grooves 233 is two or more, at least two of the third limiting grooves 233 are circumferentially spaced, and the first protrusions 41 are circumferentially and alternately limited in each of the third limiting grooves 233 when rotating in the circumferential direction.

Specifically, in the present embodiment, the third limiting groove 233 and the second limiting groove 232 are circumferentially spaced. When the first protruding block 41 rotates along the circumferential direction, the first protruding block 41 can be alternately limited in the second limiting groove 232 and at least one third limiting groove 233 along the circumferential direction, that is, the first protruding block 41 can be locked at different positions of the toothbrush head 2 along the circumferential direction, and when the first protruding block 41 is limited in the second limiting groove 232 and the first protruding block 41 is limited in the third limiting groove 233, the toothbrush head 2 and the toothbrush handle 1 are different in orientation along the circumferential direction. Therefore, different use requirements can be met due to the arrangement of the second limiting groove 232 and the third limiting groove 233, the user can adjust the circumferential upward orientation of the toothbrush head 2 and the toothbrush handle 1 according to the specific use requirements, and the use convenience of the toothbrush is remarkably improved.

More specifically, in this embodiment, one end of the second slot segment 222 in the circumferential direction is communicated with the first slot segment 221, the other end of the second slot segment 222 in the circumferential direction is stopped by a third limiting wall 26, and the second protrusion 42 can be limited by the third limiting wall 26 when rotating in the circumferential direction, so as to limit the stroke of the second protrusion 42 in the circumferential direction, that is, the stroke of the toothbrush head 2 and the toothbrush handle 1 in the circumferential direction.

When the second limiting wall 25 is an extension wall formed by extending the third limiting wall 26 along the longitudinal direction y, that is, when the second limiting wall 25 and the third limiting wall 26 are located on the same plane, the first protrusion 41 and the second protrusion 42 are connected to form an "L" shape, and the second protrusion 42 extends from one end of the first protrusion 41 along the second rotation direction, so as to prevent the first protrusion 41 from entering the second limiting groove 232 along the circumferential direction when the second protrusion 42 is limited on the third limiting wall 26. Of course, the second limiting wall 25 and the third limiting wall 26 may be disposed on different planes, and the second protrusion 42 may be disposed to form a "T" shape or an "L" shape in connection with the first protrusion 41, and when the second protrusion 42 is disposed to form an "L" shape in connection with the first protrusion 41, the second protrusion 42 extends along the first rotation direction or along the second rotation direction.

In an embodiment, referring to fig. 3, the outer wall of the protruding portion 231 is provided with a plurality of inclined surfaces 2311, each inclined surface 2311 extends along the longitudinal direction y, and the inclined surfaces 2311 are sequentially connected along the circumferential direction to form the outer wall of the protruding portion 231, when the first protrusion 41 rotates along the circumferential direction and enters the second limiting groove 232 or the third limiting groove 233, the first protrusion 41 abuts against the inclined surfaces 2311 of the protruding portion 231, and the arrangement of the inclined surfaces 2311 enhances the strength of the first protrusion 41 abutting against one side of the protruding portion 231, and enhances the limiting strength of the toothbrush head 2 and the toothbrush handle 1 along the circumferential direction. Moreover, when the first protrusion 41 rotates in the circumferential direction and enters the second limiting groove 232 or the third limiting groove 233, the first protrusion 41 needs to pass through the outer wall of the protrusion 231, and the arrangement of the inclined surface 2311 enhances the smoothness of the first protrusion 41 entering the second limiting groove 232 or the third limiting groove 233.

Or, in another embodiment, the outer wall of the convex portion 231 is configured as an arc surface extending along the circumferential direction, when the first protrusion 41 rotates along the circumferential direction and enters the second limiting groove 232 or the third limiting groove 233, the first protrusion 41 needs to pass through the outer wall of the convex portion 231, and the arrangement of the arc surface enhances the smoothness of the first protrusion 41 entering the second limiting groove 232 or the third limiting groove 233.

In one embodiment, referring to fig. 6, an end of the brush handle 1 is provided with an extending shaft 3, the extending shaft 3 extends along the longitudinal direction y, and the outer diameter of the extending shaft 3 is smaller than that of the brush handle 1, so that the extending shaft 3 can be conveniently inserted into the connecting groove 21 to connect the toothbrush head 2 and the brush handle 1, and the handle 1 can not be influenced by a user when the outer diameter of the brush handle 1 is too small. Wherein, the brush handle 1 and the extension shaft 3 form a split connection or an integral connection.

The stopper 4 sets up in the outer wall of projecting shaft 3, and first spacing groove 22 and limit structure 23 all set up in toothbrush head 2 this moment. The first protruding block 41 and the second protruding block 42 of the limiting block 4 are integrally formed with the protruding shaft 3, so that the connection strength of the limiting block 4, the first protruding block 41 and the second protruding block 42 is improved, and the protruding shaft 3 can be better limited in the connection groove 21.

Or, in another embodiment, the first limiting groove 22 is opened on the outer wall of the protruding shaft 3, and the limiting structure 23 is also arranged on the outer wall of the protruding shaft 3, and the limiting block 4 is arranged on the inner wall of the toothbrush head 2.

In one embodiment, referring to fig. 6 and 7 together, the outer peripheral wall of the protruding shaft 3 is circumferentially formed with a first step 33, the inner peripheral wall of the toothbrush head 2 is circumferentially formed with a second step 213, and when the protruding shaft 3 is inserted into the connecting groove 21 along the longitudinal direction y, the step surface of the first step 33 can be longitudinally limited on the step surface of the second step 213, so as to limit the stroke of the brush handle 1 inserted into the toothbrush head 2 along the longitudinal direction y, and thus the toothbrush can be protected.

Specifically, referring to fig. 6, the protruding shaft 3 includes a first shaft section 31 and a second shaft section 32, one end of the first shaft section 31 is connected to the brush handle 1 along the longitudinal direction y, the second shaft section 32 is connected to the other end of the first shaft section 31 along the longitudinal direction y, and the outer diameter of the second shaft section 32 is smaller than that of the first shaft section 31, so that a first step 33 is formed at the edge of the other end of the first shaft section 31, and the first step 33 is disposed around the outer periphery of the second shaft section 32.

Referring to fig. 7, the connection groove 21 includes a third groove section 211 and a fourth groove section 212, the third groove section 211 is connected to the outside, the fourth groove section 212 is connected to the third groove section 211, and the first position-limiting groove 22 and the position-limiting structure 23 are both located at the third groove section 211. The inner diameter of the third groove section 211 is larger than that of the fourth groove section 212, and a second step 213 is formed at a connection of the third groove section 211 and the fourth groove section 212, so that the fourth groove section 212 forms a space avoiding groove for avoiding the second shaft section 32.

When the protruding shaft 3 is inserted into the connecting groove 21, the first shaft section 31 is inserted into the third groove section 211, and the step surface of the first step 33 is limited on the step surface of the second step 213, so that the second shaft section 32 is kept in the fourth groove section 212, the stroke of the toothbrush head 2 inserted into the connecting groove 21 along the longitudinal direction y is limited, and the protruding shaft 3 can be protected.

Wherein, the inner diameter of the fourth slot section 212 is smaller than that of the third slot section 211, so that the occupied space of the connection between the toothbrush head 2 and the extension shaft 3 in the toothbrush head 2 is reduced, and a larger design space is reserved for the shape design of the toothbrush head 2.

The present application further provides a toothbrush, which comprises a brush body, and the above embodiments have been described in detail for the specific structure of the brush body, and are not repeated here.

Wherein, the toothbrush can be set as an electric toothbrush, and can also be set as a common toothbrush. When the toothbrush is an electric toothbrush, the vibration motor of the toothbrush is arranged in the brush handle 1, and the extension shaft 3 is covered on the vibration shaft of the vibration motor, so that the vibration shaft is inserted into the connecting groove 21 along with the extension shaft 3, and the toothbrush head 2 is convenient to vibrate.

The application provides a toothbrush, set up stopper 4 through one in toothbrush head 2 and brush holder 1 at the brush body, set up first spacing groove 22 and limit structure 23 at the other. The brush body 1 one end is installed in toothbrush head 2 back, and stopper 4 is spacing in first spacing groove 22 along vertical y, and the stopper is connected in limit structure 23 in order to form along ascending spacing in week to strengthen the toothbrush head 2 of the brush body and brush holder 1's joint strength, restricted toothbrush head 2 and brush holder 1's locking position, and avoided toothbrush head 2 and brush holder 1 to produce not hard up. When the toothbrush head 2 and the toothbrush handle 1 are installed, the toothbrush handle 1 is inserted into the toothbrush head 2 and then rotates around the toothbrush head 2; when the toothbrush is disassembled, the toothbrush handle 1 can be taken out of the toothbrush head 2 by rotating the toothbrush head 2 and the toothbrush handle 1, so that the disassembly and the installation operation of the toothbrush head 2 and the toothbrush handle 1 are very simple, and the use convenience of the toothbrush is improved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A brush body comprises a toothbrush head and a brush handle which extend along the longitudinal direction, wherein one end of the toothbrush head is provided with a connecting groove for accommodating one end of the brush handle; or the outer wall of the brush handle is provided with a first limiting groove, and the inner wall of the toothbrush head is provided with a limiting block; the limiting block can be longitudinally inserted into the first limiting groove and circumferentially rotated to form limiting fit with the first limiting groove in the longitudinal direction;

first spacing groove side is equipped with limit structure, the stopper can be rotatory the back with limit structure forms ascending spacing cooperation in week.

2. The brush body according to claim 1, wherein the first limiting groove comprises a first groove section and a second groove section which are communicated with each other, and the length of the second groove section in the circumferential direction is greater than that of the first groove section in the circumferential direction;

the limiting block comprises a first lug and a second lug, and the second lug is connected with the first lug or arranged beside the first lug; the second lug can be inserted into the second groove section from the first groove section and forms longitudinal limit fit with the second groove section, and the first lug can form circumferential limit fit with the limit structure.

3. The brush body according to claim 2, wherein each of the two ends of said second slot segment in the longitudinal direction is stopped by a first stopper wall, and said second projection abuts between said first stopper walls when inserted into said second slot segment.

4. The brush of claim 2, wherein the first protrusion is connected to the second protrusion, and the first protrusion and the second protrusion are connected to form an "L" shape or a "T" shape.

5. The brush body of claim 2, wherein the limiting structure comprises a convex portion arranged beside the first limiting groove, a second limiting wall is formed on the inner wall of the toothbrush head, a second limiting groove is formed between the convex portion and the second limiting wall at a circumferential interval, and the first bump is limited in the second limiting groove along the circumferential direction.

6. The brush body according to claim 5, wherein said retaining structure includes at least two said projections spaced circumferentially, one of said projections spaced from said second retaining wall to define said second retaining groove; at least two convex parts form third limiting grooves at intervals in pairs, and the first convex blocks can be alternately limited in the second limiting grooves and the third limiting grooves along the circumferential direction.

7. The brush body according to claim 5, wherein the outer wall of the convex portion is provided with a plurality of inclined surfaces, and the plurality of inclined surfaces are sequentially connected in the circumferential direction; or the outer wall of the convex part is provided with a circular arc surface.

8. The brush body according to any one of claims 1-7, wherein an extended shaft is provided at one end of the brush handle, and the brush handle is connected with the extended shaft in a split manner or in an integrated manner; the outer wall of the extension shaft is provided with a limiting block or a first limiting groove.

9. The brush body according to claim 8, wherein the outer peripheral wall of the protruding shaft is formed with a first step in a circumferential direction, and the inner peripheral wall of the brush head is formed with a second step in a circumferential direction, the first step abutting against the second step in a longitudinal direction.

10. A toothbrush comprising a body as claimed in any one of claims 1 to 9.

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