CN215228711U

CN215228711U - Novel electric toothbrush

Info

Publication number: CN215228711U
Application number: CN202120071970.6U
Authority: CN
Inventors: 黄嘉诚; 许黎林; 李玉彬; 邹休; 王志东; 赵玉强
Original assignee: Thumbs Up Innovations Technology Co Ltd
Current assignee: Thumbs Up Innovations Technology Co Ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-12-21
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses a novel electric toothbrush, including brush holder main part and with the brush head of connection can be dismantled to the brush holder main part, the brush holder main part include the handle and salient in vibrations axle outside the handle, the lateral wall of vibrations axle is equipped with first lug, the brush head is including the brush-holder stud that has the inner chamber and locating solid fixed ring in the inner chamber, gu be equipped with buckle structure on the fixed ring, buckle structure include along gu the first thin wall recess of solid fixed ring's the radial sunken and along the radial bellied clamping part of first thin wall recess, first lug can imbed first thin wall recess, and with clamping part block locking. The brush head of the utility model is connected with the buckle of the brush holder main body, and the brush head is convenient to disassemble and assemble, simple and stable in connection structure.

Description

Novel electric toothbrush

Technical Field

The utility model relates to the field of articles for daily use, especially, relate to a novel electric toothbrush.

Background

The long-term use of the electric brush head of the novel electric toothbrush can cause the abrasion of the brush hair, the accumulation of bacteria and the poor cleaning effect, and the brush head needs to be periodically replaced.

The existing connecting structure between the brush head and the toothbrush handle generally has the problems of complex structure and inconvenient disassembly and assembly. Due to the fact that the requirement for plugging and unplugging the electric toothbrush is high, if the brush head is assembled too tightly, the brush head is not easy to replace, and the electric toothbrush is easy to damage due to too large force in the replacement process; when the brush head is assembled loosely, the brush head collides with parts such as the driving shaft, and the like, so that large noise is generated, and the user experience is influenced.

Some electric toothbrushes adopt that the clamping block is arranged in the brush head shell and connected with the driving shaft, so that the structure is complex, the brush head is not stable enough, and the use is not flexible and convenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a novel electric toothbrush which is easy to disassemble and assemble, has a simple and stable connection structure.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a novel electric toothbrush, including brush holder main part and with the brush head of connection can be dismantled to the brush holder main part, the brush holder main part include the handle and salient in vibrations axle outside the handle, the lateral wall of vibrations axle is equipped with first lug, the brush head including the brush-holder stud that has the inner chamber with locate solid fixed ring in the inner chamber, gu be equipped with buckle structure on the fixed ring, buckle structure include along gu the radial sunken first thin wall recess of solid fixed ring's inside wall with along the radial bellied clamping part of first thin wall recess, first lug can imbed first thin wall recess, and with clamping part block locking.

Furthermore, the inner side wall of the fixing ring is radially sunken to form a second thin-wall groove, and a second convex block matched with the second thin-wall groove is arranged on the outer side wall of the vibration shaft.

Furthermore, the first lug and the second lug are arranged along the outer side wall of the vibration shaft at intervals in the circumferential direction.

Further, the first thin-wall groove and the second thin-wall groove are oppositely arranged; the first bump and the second bump are oppositely arranged.

Furthermore, a gap is arranged between the outer side wall of the end part of the buckling part close to the brush holder main body and the inner side wall of the brush rod.

Furthermore, the side wall of the inner cavity of the brush rod is provided with a limiting groove, and the outer side wall of the fixing ring is provided with a limiting lug matched with the limiting groove.

Furthermore, the inner cavity of the brush rod is provided with a limiting convex rib, and the fixing ring is close to one end of the brush rod and is provided with a limiting notch matched with the limiting convex rib.

Furthermore, the limiting notch extends from one end, close to the brush rod, of the fixing ring to the direction far away from the brush rod.

Furthermore, one end of the fixing ring, which is close to the brush rod, is arranged in a frustum shape which is convenient to be embedded into the inner cavity of the brush rod.

Furthermore, the central axis of the fixing ring is collinear with the central axis of the vibration shaft.

The utility model has the advantages that: the novel electric toothbrush of the utility model arranges the fixing ring with the buckle structure in the inner cavity of the brush rod, and the buckle structure on the fixing ring is locked with the first lug on the vibration shaft, so that the brush head is fixedly connected with the vibration shaft through the buckle without using fixing parts such as screws, and the brush head is convenient to disassemble and assemble and is flexible and convenient to use; the utility model provides a buckle structure includes along the radial sunken first thin wall recess of solid fixed ring's inside wall and along the radial bellied clamping part of first thin wall recess, through setting up first thin wall recess into the thin wall form for the deformation direction of clamping part has bigger degree of freedom, need not slot on solid fixed ring yet at the surperficial fluting of brush-holder stud, has increased electric toothbrush's whole aesthetic property and production and processing's simplicity.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 illustrates a partial schematic view of a handle in one embodiment of the electric toothbrush of the present invention;

FIG. 2 shows an exploded view of the electric toothbrush of the present invention;

FIG. 3 is a schematic view of a brush head of the electric toothbrush of the present invention;

FIG. 4 is a schematic view of a retaining ring in the electric toothbrush of the present invention;

FIG. 5 shows an enlarged schematic view at B in FIG. 2;

FIG. 6 is a schematic view of the connection between the brush head and the handle of the electric toothbrush of the present invention;

FIG. 7 shows a schematic cross-sectional view in the direction C-C of FIG. 6;

fig. 8 shows a schematic cross-sectional view in the direction D-D in fig. 6.

Wherein the figures include the following reference numerals:

1. a brush handle body; 10. a handle; 101. a vibration shaft; 20. a brush head; 301. a first bump; 302. a second bump; 40. a fixing ring; 400. a buckle structure; 401. a first thin-walled recess; 402. a fastening part; 404. a second thin-walled recess; 405. a limiting bump; 406. a limiting notch; 407. a frustum; 50. a brush bar; 501. an inner cavity; 5011. a limiting groove; 5012. and limiting convex ribs.

Detailed Description

It should be noted that in the present invention, unless stated to the contrary, the use of directional terms such as "upper, lower, top, bottom, front, back" is generally directed to the orientation shown in the drawings, or to the vertical, perpendicular, or gravitational orientation of the component itself; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

Fig. 1 to 8 are schematic structural views of an embodiment of the electric toothbrush of the present invention.

The utility model discloses a novel electric toothbrush, including brush holder main part 1 and can dismantle the brush head 20 of being connected with brush holder main part 1, brush holder main part 1 includes handle 10 and outstanding vibrations axle 101 outside handle 10, and handle 10 sets up the shape that the person of facilitating the use controlled. The handle 10 is provided with a driving part which is connected with the vibration shaft 101 in a driving way, and the brush head 20 can be sleeved on the vibration shaft 101. Specifically, the outer side wall of the vibration shaft 101 is provided with a first bump 301, the brush head 20 comprises a brush rod 50 having an inner cavity 501 and a fixing ring 40 arranged in the inner cavity 501, wherein the fixing ring 40 is hollow, the fixing ring 40 can be firmly arranged in the inner cavity 501 of the brush rod 50, and the central axis of the fixing ring 40 is collinear with the central axis of the vibration shaft 101. In this embodiment, the fixing ring 40 and the brush bar 50 are formed by separate assembly, but in other embodiments, the fixing ring 40 and the brush bar 50 may be formed integrally. Specifically, the fixing ring 40 is provided with a snap structure 400, the snap structure 400 includes a first thin-wall groove 401 radially recessed along an inner side wall of the fixing ring 40 and a snap portion 402 radially protruding along the first thin-wall groove 401, and the first protrusion 301 can be embedded into the first thin-wall groove 401 and be locked with the snap portion 402 in a snap manner. It should be noted that the wall thickness of the first thin-wall groove 401 is thinner than the wall thickness of other portions of the fixing ring 40, so as to facilitate deformation; that is, when the first bump 301 contacts the buckling portion 402 of the buckling structure 400, the buckling portion 402 disposed in the first thin-walled groove 401 can be deformed, so that the first bump 301 can be smoothly inserted into the first thin-walled groove 401. Specifically, the first protrusion 301 can bypass the protruding portion of the fastening portion and be embedded in the first thin-walled groove 401, so that the first protrusion 301 is locked with the fastening portion 402, and the brush head 20 is fastened to the vibration shaft 101. That is, when the fixing ring 40 is fixed in the inner cavity 501 of the brush rod 50, the vibration shaft 101 passes through the fixing ring 40, and the first protrusion 301 on the vibration shaft 101 presses the buckling part 402 outwards after contacting the front end of the buckling part 402, because the first thin-walled groove 401 is thin-walled, it can deform, and the buckling part 402 is pressed to deform outwards, so that the first protrusion 301 can be embedded into the first thin-walled groove 401. After the first protrusion 301 is embedded into the inner wall of the first thin-wall groove 401, the squeezing action of the first protrusion 301 on the buckling part 402 disappears, the buckling part 402 automatically resets under the elastic action of the first thin-wall groove 401 and is buckled and connected with the first protrusion 301 on the outer side wall of the vibration shaft 101, so that the brush head 20 is buckled and connected with the brush handle body 1.

Compared with the traditional electric toothbrush, the brush head 20 of the novel electric toothbrush in the embodiment is fixedly connected with the vibration shaft 101 through the buckle, and fixing parts such as screws are not needed, so that the brush head 20 is convenient to disassemble and assemble and is flexible and convenient to use; set up to the thin wall form through the first thin wall recess 401 in the buckle structure 400 on the solid fixed ring 40 for the deformation direction of buckle portion 402 has the bigger degree of freedom, because first thin wall recess 401's effect, buckle portion 402 takes place deformation easily, perhaps takes place easily after deformation and kick-backs, simple structure is stable, easy processing production assembly. The utility model discloses need not be in the surperficial fluting of brush-holder stud, increased novel electric toothbrush's whole aesthetic property.

Preferably, in this embodiment, a space is provided between the outer side wall of the latch portion 402 near one end of the handle body 1 and the inner side wall of the brush rod 50, so as to leave a space for the latch portion 402 to deform.

In the present embodiment, it is preferable that the inner side wall of the fixing ring 40 is provided with a second thin-walled groove 404 opposite to the first thin-walled groove 401, that is, the second thin-walled groove 404 is provided on the opposite side of the first thin-walled groove 401.

The vibration shaft 101 is provided with a second protrusion 302 engaged with the second thin-walled groove 404, wherein the first protrusion 301 and the second protrusion 302 are circumferentially spaced along the outer sidewall of the vibration shaft 101, and in this embodiment, in order to correspond to the positions of the first groove and the second groove, the first protrusion 301 and the second protrusion 302 are symmetrically disposed on two sides along the outer wall of the vibration shaft 101. In this embodiment, the second thin-wall groove 404 is also thin-walled, so that when the second protrusion 302 is embedded into the second thin-wall groove 404, the second thin-wall groove 404 is slightly deformed, so that the second protrusion 302 and the second thin-wall groove 404 are in interference fit, and the tight connection between the two is realized. Through setting up second lug 302 and second thin wall recess 404 of mutually supporting promptly, not only make the connection between brush head 20 and the brush holder main part 1 more reliable and more stable, second lug 302 and second thin wall recess 404 still have direction and spacing effect simultaneously, prevent brush head 20 around vibrations axle 101 circumferential direction, that is, brush head 20 can not take place to remove after installing on the vibrations axle 101 of brush holder main part 1, thereby avoid assembling the pine to cause brush head 20 and vibrations axle 101 etc. to collide and cause great noise, influence user experience, also make things convenient for brush head 20's dismouting because the guide effect further simultaneously.

In this embodiment, the number of the first thin-wall grooves 401 is the same as the number of the first bumps 301. Preferably, the number of the first thin-walled recess 401 and the first projection 301 is one. Therefore, the manufacturing process is simpler, and the production efficiency and the yield are higher. In actual production, the number of the first bumps 301 may be one, two or more, and may be distributed at random intervals.

In this embodiment, preferably, the number of the second protrusions 302 and the number of the second thin-wall grooves 404 are both one, and the number of the second thin-wall grooves 404 is adapted to the number of the second protrusions 302. In actual production, however, the number of the second protrusions 302 and the second thin-wall grooves 404 may be one, two or more.

In this embodiment, when the brush head 20 is removed, the brush head 20 is pulled outward, the first protrusion 301 on the vibration shaft 101 presses the buckling portion 402, so that the buckling portion 402 is deformed outward, and the first protrusion 301 is withdrawn from the first thin-wall groove 401, while the second thin-wall groove 404 has no blocking of the protruding portion to the second protrusion 302, and the second protrusion 302 can also be withdrawn from the second thin-wall groove 404 smoothly, so that the removal of the brush head 20 can be completed after the first protrusion 301 is disconnected from the first thin-wall groove 401 and the buckling portion 402, respectively.

Specifically, the side wall of the inner cavity 501 of the brush holder 50 is provided with a limit groove 5011, and the outer side wall of the fixing ring 40 is provided with a limit protrusion 405 matched with the limit groove 5011, that is, the fixing ring 40 is firmly arranged in the inner cavity 501 of the brush holder 50 through the matching of the limit protrusion 405 and the limit groove 5011. In this embodiment, preferably, the number of the limiting grooves 5011 is two and the limiting grooves 5011 are oppositely disposed on the sidewall of the inner cavity 501 of the brush holder 50, and the number of the limiting protrusions 405 is adapted to the number of the limiting grooves 5011, so that the connection between the fixing ring 40 and the brush head 20 is more stable and reliable. However, in actual production, the number of the limit protrusions 405 and the limit grooves 5011 may be one, two or more.

Preferably, the inner cavity 501 of the brush rod 50 is provided with a limit rib 5012, one end of the fixing ring 40 close to the brush rod 50 is provided with a limit notch 406 matched with the limit rib 5012, and the limit notch 406 extends from one end of the fixing ring 40 close to the brush rod 50 to the direction far away from the brush rod 50. Wherein, the quantity of spacing protruding muscle and spacing notch can set up according to actual need. Because of the existence of the limit notch 406, when the fixing ring 40 is installed in the inner cavity 501 of the brush rod 50, one end of the fixing ring 40 close to the brush rod 50 can be extruded by the inner cavity 501 of the brush rod 50 to deform, so that the fixing ring 40 is more closely connected with the brush rod 50, in addition, the limit notch 406 is matched with the limit convex rib 5012, the fixing ring 40 can be installed in a guiding manner and limited, and the fixing ring 40 is prevented from rotating in the circumferential direction of the inner cavity 501 of the brush rod 50. Preferably, the end of the retaining ring 40 adjacent the brush bar 50 is shaped to facilitate insertion of the frustum 407 of the interior 501 of the brush bar 50. The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not to be construed as limiting the invention to the precise embodiments disclosed herein. All with the utility model discloses a method, structure etc. are similar, the same, or to the utility model discloses make a plurality of technological deductions or replacement under the design prerequisite, all should regard as the utility model discloses a protection scope.

Claims

1. The utility model provides a novel electric toothbrush, including brush holder main part (1) and with brush head (20) of connection can be dismantled to brush holder main part (1), brush holder main part (1) includes handle (10) and outstanding vibrations axle (101) outside handle (10), its characterized in that, the lateral wall of vibrations axle (101) is equipped with first lug (301), brush head (20) including brush-holder stud (50) that have inner chamber (501) and locate solid fixed ring (40) in inner chamber (501), be equipped with buckle structure (400) on solid fixed ring (40), buckle structure (400) include along the radially sunken first thin wall recess (401) of the inside wall of solid fixed ring (40) and along radially bellied buckle portion (402) of first thin wall recess (401), first lug (301) can imbed first thin wall recess (401), and is locked by the locking part (402).

2. The new electric toothbrush according to claim 1, characterized in that the inner side wall of the fixing ring (40) is radially recessed with a second thin-walled groove (404), and the outer side wall of the vibration shaft (101) is provided with a second protrusion (302) which is matched with the second thin-walled groove (404).

3. The new electric toothbrush according to claim 2, characterized in that the first cam (301) and the second cam (302) are circumferentially spaced along the outer side wall of the vibration shaft (101).

4. The new electric toothbrush according to claim 3, characterized in that the first thin-walled recess (401) and the second thin-walled recess (404) are oppositely disposed; the first bump (301) and the second bump (302) are oppositely arranged.

5. The new electric toothbrush according to claim 1, characterized in that a space is provided between the outer side wall of the snap part (402) near the end of the handle body (1) and the inner side wall of the brush rod (50).

6. The novel electric toothbrush according to claim 1, characterized in that the side wall of the inner cavity (501) of the brush holder (50) is provided with a limit groove (5011), and the outer side wall of the fixing ring (40) is provided with a limit bump (405) matched with the limit groove (5011).

7. The novel electric toothbrush according to claim 1, characterized in that the inner cavity (501) of the brush holder (50) is provided with a limit rib (5012), and one end of the fixing ring (40) close to the brush holder (50) is provided with a limit notch (406) matched with the limit rib (5012).

8. The new electric toothbrush according to claim 7, characterized in that the retaining notch (406) extends from the end of the retaining ring (40) adjacent to the brush bar (50) in a direction away from the brush bar (50).

9. The new electric toothbrush according to claim 1, characterized in that the end of the fixing ring (40) near the brush stick (50) is provided with a frustum shape for being embedded into the inner cavity (501) of the brush stick (50).

10. The new electric toothbrush according to claim 1, characterized in that the central axis of the fixing ring (40) is collinear with the central axis of the vibration shaft (101).