CN209847437U

CN209847437U - Connection structure of vibration shaft and toothbrush head, electric toothbrush, handle of electric toothbrush and toothbrush head

Info

Publication number: CN209847437U
Application number: CN201920253350.7U
Authority: CN
Inventors: 许伟
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2019-02-27
Filing date: 2019-02-27
Publication date: 2019-12-27
Anticipated expiration: 2029-02-27

Abstract

The utility model relates to a connection structure of a vibration shaft and a toothbrush head, an electric toothbrush, a handle thereof and a toothbrush head, wherein the connection structure comprises the vibration shaft and the toothbrush head, the toothbrush head comprises a brush body connected with the vibration shaft, one of the vibration shaft and the brush body is formed into a rod piece, and the other is formed into a barrel piece sleeved outside the rod piece; the inner wall of the barrel part is provided with a first buckle, the outer peripheral surface of the rod part is provided with a second buckle, and the first buckle and the second buckle are axially clamped to be locked with each other. The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when vibrations axle and toothbrush head installation, can mutually support in order to carry out the block locking through first buckle and the second buckle that vibrations axle and the brush body self formed, it is convenient fast to install, labour saving and time saving.

Description

Connection structure of vibration shaft and toothbrush head, electric toothbrush, handle of electric toothbrush and toothbrush head

Technical Field

The utility model relates to an electric toothbrush technical field especially relates to a connection structure, electric toothbrush handle and electric toothbrush brush head of vibrations axle and toothbrush head.

Background

The electric toothbrush is popular in some countries in Europe and America, and is gradually accepted by consumers in China. Compared with the common toothbrush, the electric toothbrush can clean more thoroughly, reduce gingivitis and gingival bleeding, and play a certain role in promoting blood circulation and massaging due to high-frequency vibration. Because the electric toothbrush head is in a vibration state during work, the connection between the electric toothbrush head and the handle must be stable and reliable to prevent the electric toothbrush head from accidentally slipping off during work, and the electric toothbrush head and the handle need to be easily separated so as to replace the electric toothbrush head. In the related art, the electric toothbrush head is mostly connected with the vibration rod through a screw or an accessory, and the connection modes have the defects of multiple accessories, complex structure, high production mold cost and the like.

SUMMERY OF THE UTILITY MODEL

To overcome the problems in the related art, the present disclosure provides a connection structure of a vibration shaft and a toothbrush head, an electric toothbrush handle, and an electric toothbrush head.

According to a first aspect of the embodiments of the present disclosure, there is provided a connection structure of a vibration shaft and a toothbrush head, comprising a vibration shaft and a toothbrush head, wherein the toothbrush head comprises a brush body connected with the vibration shaft, one of the vibration shaft and the brush body is formed as a rod, and the other is formed as a barrel part sleeved outside the rod; the inner wall of the barrel part is provided with a first buckle, the outer peripheral surface of the rod part is provided with a second buckle, and the first buckle and the second buckle are axially clamped to be locked with each other.

Alternatively, the open end of the barrel member has an axially extending tongue portion, and axially extending slits are formed on both sides of the tongue portion, respectively, and the first catch is formed on the tongue portion.

Optionally, at least one of the two slots extends obliquely so that the width of the tongue gradually decreases from the outside to the inside.

Optionally, the longitudinal section of the second buckle is formed into a first arc shape, and the longitudinal section of the first buckle is formed into a second arc shape axially engaged with the first arc shape.

Optionally, the open end of the cartridge has an inside diameter that tapers from the outside to the inside.

Optionally, the barrel is made of an elastic material.

Optionally, an axially extending guide groove is formed in the inner wall of the barrel, and a guide rib capable of extending into the guide groove is formed on the outer circumferential surface of the rod.

Alternatively, the guide rib includes a plurality of ribs arranged in a circumferential direction, and the guide groove includes a plurality of grooves corresponding to the guide rib one to one.

According to a second aspect of the embodiments of the present disclosure, there is provided an electric toothbrush handle including a vibration shaft for driving a brush body, the vibration shaft being the vibration shaft of the connection structure provided according to the first aspect of the embodiments of the present disclosure.

According to a third aspect of embodiments of the present disclosure, there is provided an electric toothbrush head comprising a brush body for mounting to a vibration shaft, the brush body being a brush body of the connection structure provided according to the first aspect of embodiments of the present disclosure.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a power toothbrush including the structure for connecting the vibration shaft to the toothbrush head provided according to the first aspect of the embodiments of the present disclosure.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when vibrations axle and toothbrush head installation, can mutually support in order to carry out the block locking through first buckle and the second buckle that vibrations axle and the brush body self formed, it is convenient fast to install, labour saving and time saving.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic view of a shock shaft to brushhead attachment configuration according to an exemplary embodiment;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partial structural view of a brush body in the joining structure shown in FIG. 1;

fig. 4 is a sectional view showing an assembled structure of a vibration shaft and a brush body.

Reference numerals

100 vibration shaft 200 brush body

310 first catch 320 tongue

330 cutting groove 340 guide groove

410 second catch 420 guide rib

500 handle

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In the present disclosure, unless otherwise specified, the use of directional terms such as "inner" and "outer" is generally directed to the proper contours of the respective components. In addition, the terms "first", "second", and the like used in the embodiments of the present disclosure are for distinguishing one element from another, and have no order or importance.

Referring to fig. 1 and 2, the present disclosure provides a vibration shaft and brush head coupling structure including a vibration shaft 100 and a brush head, which may include a brush body 200 coupled to the vibration shaft 100. One of the vibration shaft 100 and the brush body 200 may be formed as a rod, and the other may be correspondingly formed as a tube fitting outside the rod, so as to fit the vibration shaft 100 and the brush body 200 together. To further describe other advantageous effects of the connection structure, the present disclosure will be explained below by taking only the case where the vibration shaft 100 is formed as a rod and the brush body 200 is formed as a barrel.

Referring to fig. 1 to 4, in the embodiment of the present disclosure, the inner wall of the barrel may be formed with a first snap 310, the outer circumferential surface of the rod may be correspondingly formed with a second snap 410, that is, the inner wall of the brush body 200 is formed with the first snap 310, and the outer circumferential surface of the vibration shaft 100 is formed with the second snap 410. Specifically, in one possible implementation, a first catch 310 is formed to protrude from an inner wall of the brush body 200, and a second catch 410 is formed to protrude from an outer circumferential surface of the vibration shaft 100. When the vibration shaft is installed, the brush body 200 is sleeved on the outer side of the vibration shaft 100, and the first fastener 310 and the second fastener 410 are axially fastened to lock the vibration shaft 100 and the brush body 200 with each other. Thus, the vibration shaft 100 and the brush body 200 of the connection structure provided by the embodiment of the disclosure can be mutually clamped through the self-formed buckle structure, the connection is firm, the structural integrity is good, no additional accessories are provided, the processing is easy, the economy is good, the production efficiency can be effectively improved, and the connection structure is suitable for batch production. In addition, accurate installation can be realized through alignment and positioning of the first buckle 310 and the second buckle 410 during installation, that is, the clamping mechanism formed by the first buckle 310 and the second buckle 410 also has a fool-proof function, and can prevent the vibration shaft 100 and the brush body 200 from being installed in wrong directions.

Further, referring to fig. 2 to 4, the second catch 410 may be configured to have a first arc-shaped longitudinal section, that is, the height of the second catch 410 gradually increases from small to small in the axial direction and then gradually decreases; first catch 310 may be correspondingly configured with a second arcuate longitudinal section that axially engages the first arcuate section. When the vibration shaft 100 is mounted on the brush body 200, the first buckle 310 moves axially, and first contacts with the position of the second buckle 410 with a smaller height, and after the first buckle 310 moves axially, and the first buckle 310 moves over the highest position of the second buckle 410, the arc-shaped surface of the first buckle contacts with the arc-shaped surface of the second buckle 410 with a gradually reduced height, and is mutually clamped by the aid of the protruding structures between the first buckle 310 and the second buckle, so that the axial locking of the vibration shaft 100 and the brush body 200 is finally realized. The arc transition surfaces of the first buckle 310 and the second buckle 410 can reduce installation resistance, and are convenient to disassemble and assemble.

In the disclosed embodiment, the first catch 310 and the second catch 410 are engaged in a manner similar to the engagement between teeth, so as to be locked to each other by the engagement therebetween. In other embodiments, the first clip 310 and the second clip 410 may have other clipping forms, which is not limited by the disclosure.

In one possible implementation, the second catch 410 may be configured to have a semicircular longitudinal section, and accordingly, the longitudinal section of the first catch 310 is formed in an arc shape to be axially engaged with the semicircular shape.

According to the embodiment of the present disclosure, the barrel may be made of an elastic material, so that when the first buckle 310 and the second buckle 410 are installed in a matching manner, the vibration shaft 100 can generate a certain radial deformation, which is beneficial to the rapid installation of the first buckle 310 and the second buckle 410.

Further, as shown in fig. 2 and 3, the open end of the barrel may further have an axially extending tongue portion 320, axially extending slots 330 are formed on both sides of the tongue portion 320, the slots 330 penetrate through the sidewall of the barrel, and the first latch 310 is formed on the tongue portion 320. Therefore, when the vibration shaft 100 and the brush body 200 are installed, the first buckle 310 can generate radial deformation along with the tongue portion 320, so that the installation resistance is effectively reduced, and other parts of the vibration shaft 100 are protected from being damaged; after the installation, the tongue portion 320 presses the first latch 310 to the engagement position, so that a pre-tightening force exists between the first latch 310 and the second latch 410, and the brush body 200 is prevented from falling off the vibration shaft 100 during the operation of the electric toothbrush.

Further, referring to fig. 2, in order to make the tongue 320 not easily broken while being elastically deformed, at least one of the two slots 330 may be obliquely extended such that the width of the tongue 320 is gradually reduced from the outside to the inside. Here, "outer" refers to a position of the cutting groove 330 near the opening, and "inner" refers to a position of the cutting groove 330 near the groove bottom.

In addition, in the disclosed embodiment, the inner diameter of the open end of the barrel may also be tapered from outside to inside to provide a guiding function during installation, thereby facilitating the placement of the vibration shaft 100 into the brush body 200.

Referring to fig. 2 and 3, in order to further secure the installation position and facilitate the rapid installation of the vibration shaft 100 and the brush body 200, an axially extending guide groove 340 may be further formed on the inner wall of the barrel, and a guide rib 420 capable of extending into the guide groove 340 may be correspondingly formed on the outer circumferential surface of the rod. The guide rib 420 may be constructed in a bar-shaped structure disposed in the axial direction, and the guide groove 340 may be formed by a portion protruding between two plate-shaped structures of the inner wall of the cylinder. In other embodiments, the guiding groove 340 may also be a groove directly formed on the inner wall of the barrel, which is not limited in this disclosure.

Further, the guide rib 420 may include a plurality of ribs arranged along the circumferential direction, and the guide groove 340 may also include a plurality of ribs corresponding to the guide rib 420 one to one, so as to sufficiently ensure the accuracy of the installation position of the vibration shaft 100 and the brush body 200. For example, the number of the guide ribs 420 may be two, and the two guide ribs 420 may be disposed opposite to each other and located on two sides of the rod respectively, wherein the opposite disposition is not limited to the facing disposition. In addition, in the case that the first buckle 310 and the second buckle 410 include a plurality of mutually-matched structures, for example, when the plurality of first buckles 310 or the plurality of second buckles 410 respectively have different structural forms, the two guide ribs 420 may be further configured to have different sizes and structures, so as to have a fool-proof function, and further prevent an installation direction error.

Like this, in the installation, the guide rib 420 stretches into in the guide way 340 to guarantee that the mounted position is accurate, first buckle 310 moves along the axial near second buckle 410 and crosses behind second buckle 410 and rather than block locking under the elastic deformation of tongue 320, and tongue 320 recovers the deformation gradually and makes and have the pretightning force between first buckle 310 and the second buckle 410 this moment, prevents that the toothbrush head from droing from vibrations axle 100, realizes the fixed mounting of vibrations axle 100 and brush body 200. When the toothbrush head is forcibly pulled to replace the toothbrush head, the tongue portion 320 is elastically deformed to allow the first catch 310 to pass over the second catch 410 and move away therefrom, thereby achieving the separation of the vibration shaft 100 and the brush body 200.

The present disclosure further provides an electric toothbrush, comprising the above-mentioned vibration shaft and toothbrush head connecting structure. Referring to fig. 1, in the embodiment of the present disclosure, the electric toothbrush may further include a handle 500 capable of accommodating the vibration shaft 100, the vibration shaft 100 extends out of the handle 500, and the second snap 410 is formed at a root of a portion of the vibration shaft 100 extending out of the handle 500, so as to sufficiently increase the length of the sleeved portion of the vibration shaft 100 and the brush body 200, and ensure reliable connection.

The present disclosure also provides an electric toothbrush handle and an electric toothbrush head. Wherein, the electric toothbrush handle comprises a vibration shaft 100 for driving the brush body 200, the vibration shaft 100 is the vibration shaft of the above-mentioned connection structure; the electric toothbrush head includes a brush body 200 for being mounted to the vibration shaft 100, the brush body 200 being the above-described coupling structure. The electric toothbrush handle and the electric toothbrush head have all the advantages of the connection structure, and the detailed description is omitted.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A connecting structure of a vibration shaft and a toothbrush head comprises the vibration shaft (100) and the toothbrush head, wherein the toothbrush head comprises a brush body (200) connected with the vibration shaft (100), and is characterized in that one of the vibration shaft (100) and the brush body (200) is formed into a rod, and the other is formed into a barrel part sleeved outside the rod;

a first buckle (310) is formed on the inner wall of the barrel, a second buckle (410) is formed on the outer peripheral surface of the rod, and the first buckle (310) and the second buckle (410) are axially clamped to be mutually locked.

2. The coupling structure according to claim 1, wherein the open end of the barrel has an axially extending tongue portion (320), the tongue portion (320) is formed at both sides thereof with axially extending slits (330), respectively, and the first catch (310) is formed on the tongue portion (320).

3. The connecting structure according to claim 2, wherein at least one of the two slots (330) extends obliquely so that the width of the tongue (320) is gradually reduced from the outside to the inside.

4. The connection structure according to claim 1, wherein a longitudinal section of the second catch (410) is formed in a first arc shape, and a longitudinal section of the first catch (310) is formed in a second arc shape that axially engages with the first arc shape.

5. The connection structure according to claim 1, wherein an inner diameter of the open end of the barrel member is tapered from outside to inside.

6. The connecting structure according to claim 1, wherein the tube member is made of an elastic material.

7. A connection structure according to any one of claims 1 to 6, wherein an axially extending guide groove (340) is provided on an inner wall of the barrel member, and a guide rib (420) capable of protruding into the guide groove (340) is formed on an outer peripheral surface of the rod member.

8. The connecting structure according to claim 7, wherein the guide rib (420) includes a plurality of circumferentially arranged, and the guide groove (340) includes a plurality of one-to-one corresponding to the guide rib (420).

9. An electric toothbrush handle comprising a vibration shaft (100) for driving a brush body (200), characterized in that the vibration shaft (100) is a vibration shaft of the connection structure according to any one of claims 1 to 8.

10. An electric toothbrush brushhead comprising a brush body (200) for mounting to a vibratory shaft (100), characterised in that the brush body (200) is a connection according to any one of claims 1 to 8.

11. An electric toothbrush comprising a vibratory shaft to brushhead attachment structure according to any one of claims 1 to 8.