CN215228710U

CN215228710U - Electric toothbrush

Info

Publication number: CN215228710U
Application number: CN202120071891.5U
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 an electric toothbrush, which comprises a brush holder main body and a brush head detachably connected with the brush holder main body, wherein the brush holder main body comprises a handle and a vibration shaft protruding out of the handle, the outer side wall of the vibration shaft is provided with a first bump, the brush head comprises a brush rod with an inner cavity and a fixing ring arranged in the inner cavity, the fixing ring is provided with a buckling part comprising a slot, and the slot extends from the end part of the buckling part close to the brush holder main body towards the direction far away from the brush holder main body; the inner side wall of the buckling part is provided with a first groove matched with the first convex block, and the first convex block can enable the buckling part to deform and is embedded into the first groove, so that the brush head is buckled and connected with the vibration shaft. 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

Electric toothbrush

Technical Field

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

Background

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

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 an 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: an electric toothbrush comprises a brush holder main body and a brush head detachably connected with the brush holder main body, wherein the brush holder main body comprises a handle and a vibration shaft protruding out of the handle, a first bump is arranged on the outer side wall of the vibration shaft, the brush head comprises a brush rod with an inner cavity and a fixing ring arranged in the inner cavity, a clamping part comprising a slot is arranged on the fixing ring, and the slot extends from the end part of the clamping part close to the brush holder main body to the direction far away from the brush holder main body; the inner side wall of the buckling part is provided with a first groove matched with the first convex block, and the first convex block can enable the buckling part to deform and is embedded into the first groove, so that the brush head is buckled and connected with the vibration shaft.

Further, the slot is arranged in the middle of the buckling part.

Furthermore, the inner side wall of the fixing ring is provided with a second groove, and the outer side wall of the vibration shaft is provided with a second lug matched with the second groove.

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.

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 lateral wall of 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: compared with the traditional electric toothbrush, the brush head of the electric toothbrush is fixedly connected with the vibration shaft through the buckle, and fixing parts such as screws are not needed, so that the brush head is convenient to disassemble and assemble, and is flexible and convenient to use; the electric toothbrush in the embodiment is characterized in that the fixing ring provided with the buckling part is arranged in the inner cavity of the brush rod, the buckling part is provided with the groove, the deformation direction of the buckling part has a larger degree of freedom, the groove is prevented from being formed in the surface of the brush rod, and the overall attractiveness of the electric toothbrush is improved.

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 of an 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; 401. a first groove; 402. a fastening part; 403. grooving; 404. a second groove; 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 an 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 buckling part 402 including a slot 403, wherein the slot 403 extends from an end of the buckling part 402 close to the brush holder body 1 to a direction away from the brush holder body 1. The inner side wall of the buckling part 402 is provided with a first groove 401 matched with the first bump 301, the front end of the buckling part 402 close to the brush holder main body 1 is convex, and the rear end of the buckling part 402 far away from the brush holder main body 1 is concave to form the first groove 401. The first protrusion 301 can deform the buckling part 402, and then the first protrusion 301 bypasses the convex part of the buckling part and is embedded into the first groove 401, that is, with such a structure, the first protrusion 301 is buckled with the buckling part 402, so that the brush head 20 is buckled with the vibration shaft 101. That is, when assembling, 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, the first protrusion 301 on the vibration shaft 101 contacts the front end of the buckling part 402 and then presses the buckling part 402 outwards, the buckling part 402 is easy to deform because the groove 403 is formed in the buckling part 402, the buckling part 402 is pressed to generate outward deformation, and the first protrusion 301 can be embedded into the first groove 401. After the first protrusion 301 is embedded into the inner wall of the first groove 401, the squeezing action of the first protrusion 301 to the buckling part 402 disappears, the buckling part 402 automatically resets under the action of its own elasticity 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 holder body 1.

Compared with the traditional electric toothbrush, the brush head 20 of the 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; in the electric toothbrush in the embodiment, the fixing ring 40 provided with the buckling part 402 is arranged in the inner cavity 501 of the brush rod 50, the buckling part 402 is provided with the slot 403, the deformation direction of the buckling part 402 has a greater degree of freedom, the slot 403 on the surface of the brush rod 50 is avoided, and the overall aesthetic property of the electric toothbrush is improved.

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 this embodiment, preferably, the number of the slots 403 is one, and the slots 403 are located in the middle of the buckling portion 402, so that the buckling position of the buckling portion 402 can be deformed more easily, or can be easily rebounded after being deformed, and the structure is reasonable and ingenious in design, simple and stable in structure, and easy to process, produce and assemble. In other embodiments, two or more slots 403 may be provided according to actual needs; the slot 403 may be provided at any position of the locking portion 402.

In this embodiment, preferably, the inner sidewall of the fixing ring 40 is provided with a second groove 404, preferably, the second groove 404 is disposed on the opposite side of the first groove 401, and the vibration shaft 101 is provided with a second protrusion 302 engaged with the second 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. Wherein, the second groove 404 extends along the end of the fixing ring 40 close to the vibration shaft 101 in the inner side wall of the fixing ring 40 in the direction away from the vibration shaft 101. Through setting up second lug 302 and second recess 404 of mutually supporting, 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 recess 404 still have direction and spacing effect simultaneously, prevent that brush head 20 from 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 first protrusions 301 are preferably distributed at equal intervals along the circumferential direction of the vibration shaft 101, and the number of the first grooves 401 is the same as that of the first protrusions 301. The number of the first bumps 301 is preferably 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 grooves 404 are both one, and the number of the second grooves 404 is adapted to the number of the second protrusions 302. In actual production, the number of the second protrusions 302 and the second 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 part 402, so that the buckling part 402 is deformed outward, and the first protrusion 301 is withdrawn from the first groove 401, the second groove 404 has no blocking of the protruding part to the second protrusion 302, and the second protrusion 302 can be withdrawn from the second groove 404 smoothly, so that the removal of the brush head 20 can be completed after the first protrusion 301 is separated from the first groove 401 and the buckling part 402.

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 side wall of 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. An electric toothbrush comprises a brush holder main body (1) and a brush head (20) detachably connected with the brush holder main body (1), wherein the brush holder main body (1) comprises a handle (10) and a vibration shaft (101) protruding out of the handle (10), and is characterized in that a first bump (301) is arranged on the outer side wall of the vibration shaft (101), the brush head (20) comprises a brush rod (50) with an inner cavity (501) and a fixing ring (40) arranged in the inner cavity (501), a buckling part (402) comprising a slot (403) is arranged on the fixing ring (40), and the slot (403) extends from the end part, close to the brush holder main body (1), of the buckling part (402) to the direction far away from the brush holder main body (1); the inner side wall of the buckling part (402) is provided with a first groove (401) matched with the first convex block (301), the first convex block (301) can enable the buckling part (402) to deform and be embedded into the first groove (401), and therefore the brush head (20) is connected with the vibration shaft (101) in a buckling mode.

2. The electric toothbrush according to claim 1, wherein the slot (403) is provided at a middle position of the catching portion (402).

3. The electric toothbrush according to claim 1, wherein the inner side wall of the fixing ring (40) is provided with a second groove (404), and the outer side wall of the vibration shaft (101) is provided with a second protrusion (302) engaged with the second groove (404).

4. The electric toothbrush according to claim 3, wherein the first protrusion (301) and the second protrusion (302) are circumferentially spaced along an outer sidewall of the vibration shaft (101).

5. The electric toothbrush according to claim 1, wherein a space is provided between an outer side wall of the latch portion (402) near the end of the handle body (1) and an inner side wall of the brush shaft (50).

6. The electric toothbrush according to claim 1, wherein 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 projection (405) which is matched with the limit groove (5011).

7. The 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 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 electric toothbrush of claim 7, wherein the retaining notch (406) extends from an end of the retaining ring (40) proximate the brush bar (50) in a direction away from the brush bar (50).

9. The electric toothbrush according to claim 1, wherein an end of the fixing ring (40) adjacent to the brush rod (50) is provided in a frustum shape so as to be inserted into the inner cavity (501) of the brush rod (50).

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