CN209916261U

CN209916261U - Connection structure of vibration shaft and toothbrush head, electric toothbrush, handle of electric toothbrush and toothbrush head

Info

Publication number: CN209916261U
Application number: CN201920253362.XU
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: 2020-01-10
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; a gap is formed at the opening end of the cylinder, and an axially extending guide groove is formed on the inner wall of the cylinder; be formed with the joint piece on the outer peripheral face of member, joint piece and breach joint are formed with the first direction muscle that can stretch into the guide way on the outer peripheral face of member. 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 joint through the breach and the joint piece that self formed to still be formed with the guide way and the first direction muscle of mutually supporting respectively on vibrations axle and the brush body, thereby can lead when the installation, guarantee mounted position's accuracy, 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 of the handle 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; a gap is formed at the opening end of the cylinder, and an axially extending guide groove is formed on the inner wall of the cylinder; the outer peripheral face of the rod piece is provided with a clamping block, the clamping block is clamped with the notch, and a first guide rib capable of extending into the guide groove is formed on the outer peripheral face of the rod piece.

Optionally, the notch includes an open slot and a slot recessed inwards from the slot bottom of the open slot, and the clamping block includes a clamping section matching with the shape of the slot and a guiding section matching with the shape of the open slot.

Optionally, the opening width of the open slot is tapered from outside to inside.

Alternatively, the open groove is formed as a trapezoidal groove, the catch groove is formed as a circular groove, the catch section is formed as a circular protrusion matching the circular groove, the guide section is formed as a trapezoidal protrusion matching the trapezoidal groove, and the circular protrusion is connected with a small end of the trapezoidal protrusion.

Optionally, the width of the connection between the open slot and the slot is tapered from outside to inside.

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

Optionally, the first guide rib and the clamping block are arranged oppositely and are respectively arranged at two sides of the rod piece; the guide groove and the notch are arranged oppositely and are respectively arranged on two sides of the barrel part.

Optionally, the barrel is made of an elastic material.

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

Optionally, the vibration shaft is a rod, and the brush body is a cylinder; the electric toothbrush comprises a handle capable of accommodating the vibration shaft, the vibration shaft extends out of the handle, and the clamping block is formed at the root of the part of the vibration shaft, which extends out of the handle.

Optionally, the first guide rib extends axially from the root of the stem to the free end of the stem.

According to a third 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 fourth aspect of the embodiments of the present disclosure, there is provided an electric toothbrush head including a brush body for mounting to a vibration shaft, the brush body being the brush body of the connection structure 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 joint through the breach and the joint piece that self formed to still be formed with the guide way and the first direction muscle of mutually supporting respectively on vibrations axle and the brush body, thereby can lead when the installation, guarantee mounted position's accuracy, 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 view from another angle of portion A of FIG. 1;

fig. 4 is a partial structural view of a brush body in the connecting structure shown in fig. 1.

Reference numerals

100 vibration shaft 200 brush body

310 notch 320 guide groove

410 the engaging block 420 first guiding rib

311 open slot 312 card slot

411 locking section 412 guide section

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.

The present disclosure provides a connection structure of a vibration shaft and a toothbrush head, which includes a vibration shaft 100 and a toothbrush head, and the toothbrush head may include a brush body 200 connected with 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 3, in the embodiment of the present disclosure, a notch 310 may be formed at an opening end of the barrel, a clamping block 410 may be correspondingly formed on an outer circumferential surface of the rod, the clamping block 410 is clamped with the notch 310, that is, the notch 310 is formed at the opening end of the brush body 200, and a clamping block 410 capable of being clamped in the notch 310 is formed on an outer circumferential surface of the vibration shaft 100, so that the vibration shaft 100 and the brush body 200 are clamped by the mutual matching of the clamping block 410 and the notch 310. Further, an axially extending guide groove 320 may be formed in the inner wall of the cylinder, a first guide rib 420 capable of extending into the guide groove 320 may be formed on the outer circumferential surface of the rod, that is, the axially extending guide groove 320 is formed in the inner wall of the brush body 200, and a first guide rib 420 engaged with the guide groove 320 is formed on the 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 two are clamped and fixed with each other through the clamping block 410 and the notch 310. In the process, the vibration shaft 100 and the brush body 200 can be clamped under the guiding action between the first guiding rib 420 and the guiding groove 320, so that the accuracy of the installation position is ensured, the installation is rapid and convenient, and the time and the labor are saved.

Wherein, joint piece 410 can be constructed for the dysmorphism arch of protrusion in vibrations axle 100 outer peripheral face, and breach 310 can be constructed for the dysmorphism groove that runs through the lateral wall of brush body 200 correspondingly to can realize accurate installation through the alignment location of joint piece 410 and breach 310 when the installation, the block mechanism that joint piece 410 and breach 310 constitute still has the fool-proofing function promptly, can prevent vibrations axle 100 and brush body 200 installation direction mistake. Thus, the vibration shaft 100 and the brush body 200 can be clamped by the clamping structure formed by the vibration shaft and the brush body, so that the connection is firm, the structural integrity is better, no additional accessories are arranged, the processing is easy, the economy is good, the production efficiency can be effectively improved, and the vibration shaft is suitable for batch production. In addition, the first guide rib 420 may be configured as a bar structure extending in the axial direction, and the guide groove 320 may be correspondingly configured as a bar groove adapted to the bar structure to facilitate guiding while limiting the circumferential rotation of the vibration shaft 100 and the brush body 200.

In the disclosed embodiment, referring to fig. 4, the notch 310 may include an open groove 311 and a card slot 312 formed by being recessed inward from a bottom of the open groove 311; referring to fig. 2, the catching block 410 may respectively include a catching section 411 shaped to match the catching groove 312 and a guide section 412 shaped to match the opening groove 311. In this way, the clamping block 410 itself also has a guiding portion, and when the vibration shaft is installed, the clamping section 411 firstly enters the opening groove 311, and gradually enters the clamping groove 312 under the matching guiding action of the guiding section 412 and the opening groove 311, so as to finally realize the clamping of the vibration shaft 100 and the brush body 200.

Further, as shown in fig. 4, the opening width of the opening groove 311 may be tapered from outside to inside, so that the opening groove 311 has a certain draft angle, which facilitates the assembly and disassembly of the vibration shaft 100 and the brush body 200. It should be noted that the notch 310, the open slot 311 and the locking slot 312 are all formed as a groove-shaped structure with an opening along the axial direction, where "outside" refers to a position of the groove-shaped structure near the opening, and "inside" refers to a position of the groove-shaped structure near the groove bottom.

According to one embodiment, referring to fig. 2 and 4, the opening groove 311 may be configured as a trapezoidal groove, the catching section 411 may be configured as a circular protrusion matching the circular groove, and the guiding section 412 may be configured as a trapezoidal protrusion matching the trapezoidal groove. The small ends of the circular protrusion and the trapezoidal protrusion are connected, and in a possible implementation mode, the small ends of the circular protrusion and the trapezoidal protrusion can be in transition connection, so that the side edges of the trapezoidal protrusion form a draft angle. The circular groove should be at least for being greater than half a circle's structure to carry out spacing to circular arch through its opening that is less than the diameter.

Further, as shown in fig. 2 and 4, in order to facilitate the locking section 411 to smoothly enter the inside of the locking groove 312, the width of the connection portion between the opening groove 311 and the locking groove 312 may be tapered from outside to inside, and correspondingly, the inner diameter of the opening end of the barrel may be tapered from outside to inside, so as to have a guiding effect during installation, and facilitate placing the vibration shaft 100 into the brush body 200.

Thus, after the vibration shaft 100 and the brush body 200 are assembled, that is, the notch 310 and the clamping block 410 are clamped, the clamping section 411 formed as the circular protrusion can apply a certain pressing force to the clamping groove 312 formed as the circular groove, so that the clamping section 411 is prevented from being separated from the clamping groove 312 when the vibration shaft 100 vibrates, the clamping mechanism has the effect of preventing vibration from retreating, and meanwhile, the vibration shaft 100 and the brush body 200 can be tightly matched.

Referring to fig. 3, according to an embodiment, the first guiding rib 420 may be disposed opposite to the engaging block 410 and located at two sides of the rod respectively, and the guiding groove 320 may be correspondingly disposed opposite to the notch 310 and located at two sides of the barrel respectively, which not only facilitates the quick installation of the vibration shaft 100 and the brush body 200, but also prevents the first guiding rib 420 from interfering with the engaging block 410. It should be noted that the relative arrangement herein does not necessarily mean the arrangement directly, for example, the first guiding rib 420 and the clamping block 410 may have a certain deviation, so that the first guiding rib 420 also has a fool-proof function, and further prevents the installation direction from being wrong. On the premise of having enough arrangement space, the first guide ribs 420 may be provided in plurality along the circumferential direction, and the guide grooves 320 may also be provided in plurality corresponding to the respective first guide ribs 420 one by one, so as to sufficiently ensure the accuracy of the mounting positions of the vibration shaft 100 and the brush body 200. Wherein, the first guiding rib 420 can be configured as a bar-shaped protrusion arranged along the axial direction, and the guiding groove 320 can be a groove directly opened on the inner wall of the barrel. Of course, the guide groove 320 may also be formed by a portion protruding between two plate-like structures of the inner wall of the barrel, which is not limited by the present disclosure.

In addition, in the embodiment of the present disclosure, the barrel may be made of an elastic material, so that when the locking section 411 extends into the locking groove 312, the opening position of the locking groove 312 can generate a certain circumferential deformation, which is beneficial to the installation and matching of the locking block 410 and the notch 310.

Therefore, in the installation process, the first guiding rib 420 extends into the guiding groove 320 to ensure the accurate installation position, the locking section 411 slides into the notch 310 along the opening groove 311, when the locking section 411 slides to the end of the opening groove 311 and the opening position of the clamping groove 312, i.e. the connection position of the opening groove 311 and the clamping groove 312, because a certain guiding angle is provided at the position, the locking section 411 formed into a circular protrusion can open the opening position of the clamping groove 312 to smoothly slide into the clamping groove 312, so that the locking section 411 is completely matched with the clamping groove 312, then the opening position of the clamping groove 312 is restored to be deformed, the locking section 411 is clamped with the clamping groove 312, and the fixed installation of the vibration shaft 100 and the brush body 200 is realized. When the toothbrush head needs to be replaced, the toothbrush head is pulled forcefully, so that the clamping section 411 stretches the opening position of the clamping groove 312 again to generate circumferential elastic deformation, the clamping section 411 is separated from the clamping groove 312 and slides out along the opening groove 311, and the vibration shaft 100 and the brush body 200 are separated.

The present disclosure further provides an electric toothbrush, comprising the above-mentioned vibration shaft and toothbrush head connecting structure. Referring to fig. 1, 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 snap-in block 410 is formed at a root of a portion of the vibration shaft 100 extending out of the handle 500 to sufficiently increase the length of the sleeved portion of the vibration shaft 100 and the brush body 200, thereby preventing the brush body 200 from falling off from the vibration shaft 100 when operating.

Further, in the embodiment where the guide groove 320 is formed as a groove opened on the inner wall of the barrel, the first guide rib 420 may axially extend from the root of the rod to the free end of the rod, so that the electric toothbrush may be installed with a sufficient guide length, which is convenient for guiding installation and is also beneficial to improving the reliability of connection of the vibration shaft and the toothbrush head.

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;

the opening end of the barrel is provided with a notch (310), and the inner wall of the barrel is provided with an axially extending guide groove (320);

a clamping block (410) is formed on the outer peripheral surface of the rod piece, and the clamping block (410) is clamped with the notch (310); a first guide rib (420) capable of extending into the guide groove (320) is formed on the outer circumferential surface of the rod.

2. The connecting structure according to claim 1, wherein the notch (310) includes an open groove (311) and a catch groove (312) formed by being recessed inward from a groove bottom of the open groove (311), and the catch block (410) includes a catch section (411) matching in shape with the catch groove (312) and a guide section (412) matching in shape with the open groove (311).

3. The connection structure according to claim 2, wherein the opening width of the open groove (311) is tapered from outside to inside.

4. The connecting structure according to claim 3, wherein the opening groove (311) is formed as a trapezoidal groove, the catching groove (312) is formed as a circular groove, the catching section (411) is formed as a circular protrusion matching the circular groove, and the guide section (412) is formed as a trapezoidal protrusion matching the trapezoidal groove, the circular protrusion and a small end of the trapezoidal protrusion being connected.

5. The connection structure according to claim 4, wherein a width of a connection of the open groove (311) and the card groove (312) is tapered from outside to inside.

6. 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.

7. The connecting structure according to claim 1, wherein the first guiding rib (420) is disposed opposite to the clamping block (410) and respectively on two sides of the rod; the guide groove (320) and the notch (310) are arranged oppositely and are respectively arranged at two sides of the barrel part.

8. A connection according to any of claims 1 to 7, wherein said barrel is of resilient material.

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

10. The electric toothbrush according to claim 9, wherein the vibration shaft (100) is a rod, and the brush body (200) is a barrel; the electric toothbrush comprises a handle (500) capable of accommodating the vibration shaft (100), the vibration shaft (100) extends out of the handle (500), and the clamping block (410) is formed at the root of the part of the vibration shaft (100) extending out of the handle (500).

11. The electric toothbrush of claim 10, wherein the first guide rib (420) extends axially from a root of the stem to a free end of the stem.

12. 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.

13. 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.