CN211485035U

CN211485035U - Electric toothbrush and waterproof sealing structure thereof

Info

Publication number: CN211485035U
Application number: CN201921949192.5U
Authority: CN
Inventors: 吴松涛
Original assignee: Perect Group Co ltd
Current assignee: Perect Group Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-09-15
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses an electric toothbrush and waterproof sealing structure thereof, wherein waterproof sealing structure includes electronic unit, drive shaft, handle and the waterproof sealing member of being connected with electronic unit, and electronic unit is installed inside the handle, and the drive shaft stretches out the open end of handle, waterproof sealing member suit are in the drive shaft, and waterproof sealing member mutually supports the installation with the open end inboard of handle and forms sealedly, and waterproof sealing member includes the waterproof flexible glue of support, support shock attenuation flexible glue, and support shock attenuation flexible glue suit is in the drive shaft, and the cover is equipped with the waterproof flexible glue of support on the support shock attenuation flexible glue, and the outside of the waterproof flexible glue of support and the laminating of the opening inner wall of handle, and the inner wall of the waterproof flexible glue of support and the outer wall of drive shaft are provided with block structure of mutually supporting, and electric toothbrush includes brush head assembly and waterproof sealing structure, the utility model provides an among, The sealing effect is poor.

Description

Electric toothbrush and waterproof sealing structure thereof

Technical Field

The utility model relates to an electric toothbrush technical field especially relates to an electric toothbrush and waterproof sealing structure thereof.

Background

Electric toothbrushes are increasingly popular among people because of their advantages of high frequency, good cleaning effect, and convenience in use. The waterproof sealing requirement of the electric toothbrush is high, and the electric toothbrush is likely to break down once the electric toothbrush is soaked, the existing electric toothbrush is generally in simple contact sealing, and the assembly structure of some sealing units is very complex and difficult to assemble.

The authorization notice number is: CN 209074983U discloses a waterproof seal and an electric toothbrush, which is sealed by a plurality of protrusions, and when assembling, the protrusions are required to be ensured inside the grooves, and when assembling, the assembling difficulty is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric toothbrush and waterproof sealing structure thereof has solved the electric toothbrush among the prior art and has sealed the technical problem that the unit equipment is difficult, sealed effect is poor.

The utility model provides an electric toothbrush's sealed waterproof construction, includes electronic unit, drive shaft, handle and the waterproof sealing member of being connected with electronic unit, electronic unit installs inside the handle, the drive shaft stretches out the open end of handle, the waterproof sealing member suit is in the drive shaft, and the waterproof sealing member with the inboard installation of mutually supporting of open end of handle forms sealedly, the waterproof sealing member includes the waterproof flexible glue of support, support shock attenuation flexible glue suit is in the drive shaft, and the cover is equipped with the waterproof flexible glue of support on the support shock attenuation flexible glue, the outside of the waterproof flexible glue of support with the laminating of the opening inner wall of handle, just the inner wall of the waterproof flexible glue of support with the outer wall of drive shaft is provided with the block structure of mutually supporting.

The sealing waterproof structure of the utility model is assembled by two sealing units, and then the driving shaft and the handle are sealed, so as to improve the sealing performance; the utility model discloses simple structure, simple to operate, and sealed effectual.

On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:

further, the block structure is including setting up bulge loop on the drive shaft outer wall is in with the setting the annular groove of waterproof flexible glue bottom of support, the upper surface of bulge loop with the tank bottom contact of annular groove adopts this step's beneficial effect to improve the leakproofness through the block structure.

Furthermore, the waterproof flexible glue of the bracket comprises a first cylindrical part and a second cylindrical part with a circular outer extension part, wherein a first through hole for the driving shaft to pass through is formed in the middle of the first cylindrical part, a second through hole is formed in the middle of the second cylindrical part, the first cylindrical part is positioned inside the second cylindrical part, the upper surface of the second cylindrical part and the upper surface of the first cylindrical part are connected with a circular ring part, and the bottom surface of the circular ring part, the outer wall of the first cylindrical part and the inner wall of the second cylindrical part are combined to form an installation gap; an annular groove is formed in the bottom of the first cylindrical part.

Furthermore, the bracket damping soft rubber comprises a third cylindrical part and a fourth cylindrical part with a circular outer extension part, a fourth through hole for the driving shaft to pass through is formed in the middle of the fourth cylindrical part, the inner wall of the fourth through hole is in contact with the outer wall of the convex ring, and the upper surface of the fourth cylindrical part is positioned below the upper surface of the convex ring;

and a third through hole is formed in the middle of the third cylindrical part and is positioned above the fourth cylindrical part, and the diameter of the third through hole is larger than that of the first through hole and smaller than that of the second through hole.

Further, the third cylindrical portion is located inside the mounting space, a bottom surface of the first cylindrical portion is in contact with an upper surface of the fourth cylindrical portion, and a lower surface of the circular extension portion of the second cylindrical portion is in contact with an upper surface of the circular extension portion of the fourth cylindrical portion.

The utility model also discloses an electric toothbrush, including foretell sealed waterproof construction, support, the first subassembly of control unit and brush, brush first unit mount the tip of handle, the support mounting is in inside the handle, and support top installation electric unit and the control unit, the drive shaft of electric unit passes inside the open end of handle stretches into first subassembly of brush, the control unit control the electric unit motion, waterproof sealing member suit is in drive epaxially, and waterproof sealing member with the inboard installation of mutually supporting of open end of handle forms sealedly.

Preferably, it still includes first motor shock attenuation cushion and second motor shock attenuation cushion, first motor shock attenuation cushion suit is in the front end of electric unit, and first motor shock attenuation cushion is located waterproof sealing's bottom, second motor shock attenuation cushion is installed electric unit bottom and support shock attenuation of mutually supporting.

Preferably, it still includes the motor cover, the motor cover suit is in the first motor shock attenuation cushion outside, and the motor cover has seted up four pilot holes along its circumferencial direction, the top outside interval of support is provided with four archs, protruding with pilot hole combination assembly, one side of motor cover still is provided with the buckle with handle inner wall matched with.

Preferably, a plurality of first clamping grooves are formed in the periphery of the motor cover, a plurality of ribs are arranged on the outer side of the support, a plurality of second clamping grooves are formed in the inner wall of the handle, and the ribs are matched with the first clamping grooves and the second clamping grooves respectively.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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.

Fig. 1 is a schematic structural view of a sealing and waterproof structure of an electric toothbrush according to embodiment 1 of the present invention;

fig. 2 is a sectional view taken along the line a-a of the sealing and waterproof structure of the electric toothbrush according to embodiment 1 of the present invention;

fig. 3 is a partially enlarged schematic view of a sealing and waterproof structure of an electric toothbrush according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of an electric toothbrush according to embodiment 2 of the present invention;

fig. 5 is a sectional view of a handle of an electric toothbrush according to embodiment 2 of the present invention;

reference numerals:

1-an electric unit; 2-a drive shaft; 3-a handle; 4-a waterproof seal; 5-a clamping structure; 6-a scaffold; 7-a control unit; 8-a brush head assembly; 9-buckling; 10-a first motor cushion; 11-a second motor shock-absorbing rubber pad; 12-a motor housing; 13-assembly holes; 14-a bump; 15-a first card slot; 16-ribs; 17-a second card slot;

401-waterproof soft bracket glue; 402-bracket damping soft rubber;

403-a first cylindrical part; 404-a second cylindrical portion; 405-a first via; 406-a second via; 407-circular part; 408-installation clearance;

409-a third cylinder; 410-a fourth cylinder part; 411 — third via; 412-fourth via;

501-convex ring; 502-annular groove.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

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

Example 1

Referring to fig. 1, fig. 1 is a schematic structural view of a first embodiment of a sealing and waterproof structure of an electric toothbrush according to the present invention. As shown in connection with fig. 2-3. The embodiment of the utility model provides an electric toothbrush's sealed waterproof construction includes electronic unit 1, drive shaft 2, handle 3 and waterproof sealing member 4 of being connected with electronic unit 1, in order to realize electric toothbrush's vibration function, electronic unit 1 adopts the motor usually, drives drive shaft 2 through the motor and vibrates to realize electric toothbrush's vibration function, in the assembly process, electronic unit 1 is installed to handle 3 inside through needs, and drive shaft 2 stretches into the toothbrush head usually, when taking place to vibrate, the toothbrush head can take place to swing, in order to accomplish the action of brushing teeth; the electric unit 1 needs other electric control units for control, if the electric control unit fails, the movement of the electric unit 1 is affected, and the failure is caused by the fact that the electric control unit is soaked in water in the using process, so the technical requirement of the waterproof sealing part 4 between the driving shaft 2 and the handle 3 is very high.

In this embodiment, the electric unit 1 is installed inside the handle 3, the driving shaft 2 extends out of the opening end of the handle 3, the waterproof sealing member 4 is sleeved on the driving shaft 2, and the waterproof sealing member 4 and the opening end inner side of the handle 3 are mutually matched and installed to form sealing, and the waterproof sealing member 4 in this embodiment is also used for improving the sealing performance between the driving shaft 2 and the handle 3.

Referring to fig. 2, the waterproof sealing member 4 includes a support waterproof soft rubber 401 and a support damping soft rubber 402, the support damping soft rubber 402 is sleeved on the driving shaft 2, the support waterproof soft rubber 401 is sleeved on the support damping soft rubber 402, the outer side of the support waterproof soft rubber 401 is attached to the inner wall of the opening of the handle 3, and the inner wall of the support waterproof soft rubber 401 and the outer wall of the driving shaft 2 are provided with mutually matched clamping structures 5; one embodiment of the utility model is that the waterproof sealing element 4 is divided into two parts, namely a bracket waterproof soft rubber 401 and a bracket damping soft rubber 402, which not only improve the driving shaft 2 and the handle 3, but also mutually cooperate to form a plurality of seals such as direct contact seal, clamping structure 5 seal and the like, thereby improving the sealing effect; another embodiment may be a water-tight seal 4 of one-piece construction, mounted directly on the drive shaft 2, to seal.

Referring to fig. 2, the clamping structure 5 includes a convex ring 501 disposed on the outer wall of the driving shaft 2 and an annular groove 502 disposed at the bottom of the waterproof soft bracket glue 401, and the upper surface of the convex ring 501 is in contact with the bottom of the annular groove 502; the annular groove 502 and the convex ring 501 are in surface contact fit in the embodiment, so that sealing is realized, the original plane contact sealing is changed into convex surface contact sealing, and the sealing performance is improved.

Referring to fig. 3, the bracket waterproof soft glue 401 includes a first cylindrical portion 403 and a second cylindrical portion 404 with a circular outer extension portion, a first through hole 405 is formed in the middle of the first cylindrical portion 403 for the driving shaft 2 to pass through, a second through hole 406 is formed in the middle of the second cylindrical portion 404, the first cylindrical portion 403 is located inside the second cylindrical portion 404, a circular ring portion 407 is connected to the upper surface of the second cylindrical portion 404 and the upper surface of the first cylindrical portion 403, and a mounting gap 408 is formed by the combination of the bottom surface of the circular ring portion 407, the outer wall of the first cylindrical portion 403 and the inner wall of the second cylindrical portion 404; the annular groove 502 is formed in the bottom of the first cylindrical part 401; the bracket waterproof soft rubber 401 in this embodiment is an integrally formed piece, and is composed of a plurality of parts, and the drive shaft 2 needs to penetrate through the bracket waterproof soft rubber 401, so that through holes need to be formed in each part of the bracket waterproof soft rubber 401, that is, a first through hole 405 of the first cylindrical part 403 and a second through hole 406 of the second cylindrical part 404, wherein the diameter of the second through hole 406 is larger than that of the first cylindrical part 403, so that an annular installation gap 408 is formed between the first cylindrical part 403, the second cylindrical part 404 and the annular part 407, and subsequent assembly and sealing with the bracket damping soft rubber 402 are facilitated; the annular groove 502 is formed at the bottom of the first cylindrical portion 401, so that the inner portion can be matched with the driving shaft 2, and sealing is facilitated, that is, the inner wall of the first through hole 405 is in contact with the outer wall of the driving shaft 2.

As shown in fig. 3, the soft support damping rubber 402 comprises a third cylindrical part 409 and a fourth cylindrical part 410 with a circular outer extension part, a fourth through hole 412 for the driving shaft 2 to pass through is arranged in the middle of the fourth cylindrical part 410, the inner wall of the fourth through hole 412 is in contact with the outer wall of the convex ring 501, and the upper surface of the fourth cylindrical part 410 is located below the upper surface of the convex ring 501;

a third through hole 411 is formed in the middle of the third cylindrical part 409, the third cylindrical part 409 is positioned above the fourth cylindrical part 410, and the diameter of the third through hole 411 is larger than that of the first through hole 405 and smaller than that of the second through hole 406;

the soft support damping rubber 402 in this embodiment is also integrally formed and divided into two parts, wherein the fourth cylindrical part 410 located below contacts with part of the convex ring 501 to complete sealing, and the rest of the convex ring 501 is matched with the annular groove 502 to complete sealing; the bracket damping soft rubber 402 in the embodiment is mainly assembled with the bracket waterproof soft rubber 401 in a matching manner.

Referring to fig. 1, the third cylindrical portion 409 is located inside the mounting space 408, so that the assembly fitting is completed, the bottom surface of the first cylindrical portion 403 contacts with the upper surface of the fourth cylindrical portion 410, and the lower surface of the circular extension portion of the second cylindrical portion 404 contacts with the upper surface of the circular extension portion of the fourth cylindrical portion 410; the embodiment is to realize the combined installation of the bracket waterproof soft rubber 401 and the bracket damping soft rubber 402, so as to improve the sealing property.

Example 2:

as shown in fig. 4-5, this embodiment discloses an electric toothbrush, which includes the waterproof sealing structure described in embodiment 1, a bracket 6, a control unit 7, and a brush head assembly 8, where the brush head assembly 8 is installed at an end of the handle 3, the bracket 6 is installed inside the handle 3, and an electric unit 1 and a control unit 9 are installed above the bracket 6, and the control unit 9 is an existing control unit 9 on the market, and includes a power supply and a circuit, and controls the electric unit 1 to move, which is not described herein again; similarly, the brush head assembly 8 is also an existing brush head component, and can be detachably mounted at one end of the handle, which is not described in detail herein.

The drive shaft 2 of the electric unit 1 penetrates through the opening end of the handle 3 and extends into the brush head assembly 8, the control unit 9 controls the electric unit 1 to move, the waterproof sealing element 4 is sleeved on the drive shaft 2, and the waterproof sealing element 4 and the inner side of the opening end of the handle 3 are matched with each other to form sealing.

Referring to fig. 4, the damping device further comprises a first motor damping rubber pad 10 and a second motor damping rubber pad 11, wherein the first motor damping rubber pad 10 is sleeved at the front end of the electric unit 1, the first motor damping rubber pad 10 is located at the bottom of the waterproof sealing member 4, and the second motor damping rubber pad 11 is installed at the bottom of the electric unit 1 and is matched with the bracket 6 for damping; the number of the motor damping rubber pads in the embodiment is two, one is arranged at the front end of the electric unit 1, the other is arranged at the rear end of the electric unit 2, the first motor damping rubber pad 10 is arranged at the front end and is matched with the bottom of the support damping soft rubber 402, namely, an assembly groove is formed at the bottom of the support damping soft rubber 402, and the first motor damping rubber pad 10 is arranged in the assembly groove to complete assembly; the second motor shock attenuation cushion 11 and the support 6 of rear end mutually support, and when electronic unit 1 installed on support 6, support 6 can set up a position in storehouse of placing the motor, places second motor shock attenuation cushion 11 between the inner wall in position in storehouse and electronic unit 1's bottom this moment, can accomplish the shock attenuation.

Referring to fig. 4, the shock-absorbing rubber pad further comprises a motor cover 12, the motor cover 12 is sleeved outside the first motor shock-absorbing rubber pad 10, four assembling holes 13 are formed in the motor cover 12 along the circumferential direction of the motor cover, four protrusions 14 are arranged on the outer side of the top of the bracket 6 at intervals, the protrusions 14 and the assembling holes 13 are assembled in a combined mode, and a buckle 9 matched with the inner wall of the handle 3 is further arranged on one side of the motor cover 12; the installation order of this embodiment is that after electric unit 1 front and back section assembly first motor shock attenuation cushion 10, second motor shock attenuation cushion 11 were accomplished, with motor cover 12 suit on first motor shock attenuation cushion 10, then cooperate the installation with support 6 again, install waterproof sealing member 4, handle 3 at last.

Referring to fig. 4 and 5, a plurality of clamping grooves 15 are formed around the motor cover 12, a plurality of ribs 16 are arranged on the outer side of the bracket 6, a plurality of second clamping grooves 17 are formed on the inner wall of the handle, and the ribs are respectively matched with the first clamping grooves 15 and the second clamping grooves 17; this embodiment draw-in groove and rib block can accomplish the block assembly like this, reduce the screw.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides an electric toothbrush's sealed waterproof construction, includes electronic unit, drive shaft, handle and the waterproof sealing member of being connected with electronic unit, electronic unit installs inside the handle, the drive shaft stretches out the open end of handle, the waterproof sealing member suit is in the drive shaft, and the waterproof sealing member with the inboard installation of mutually supporting of open end of handle forms sealedly, its characterized in that, the waterproof sealing member includes the waterproof flexible glue of support, support shock attenuation flexible glue suit is in the drive shaft, and the cover is equipped with the waterproof flexible glue of support on the support shock attenuation flexible glue, the outside of the waterproof flexible glue of support with the laminating of the opening inner wall of handle, just the inner wall of the waterproof flexible glue of support with the outer wall of drive shaft is provided with the block structure of mutually supporting.

2. The waterproof sealing structure for an electric toothbrush according to claim 1, wherein the engaging structure comprises a protruding ring disposed on the outer wall of the driving shaft and an annular groove disposed at the bottom of the waterproof flexible glue of the bracket, and an upper surface of the protruding ring contacts with a bottom of the annular groove.

3. The electric toothbrush seal waterproof structure as claimed in claim 2, wherein the bracket waterproof flexible glue comprises a first cylindrical part and a second cylindrical part with a circular extension part, a first through hole for the driving shaft to pass through is arranged in the middle of the first cylindrical part, a second through hole is arranged in the middle of the second cylindrical part, the first cylindrical part is located inside the second cylindrical part, a circular ring part is connected to the upper surface of the second cylindrical part and the upper surface of the first cylindrical part, and the bottom surface of the circular ring part, the outer wall of the first cylindrical part and the inner wall of the second cylindrical part form an installation gap in combination; an annular groove is formed in the bottom of the first cylindrical part.

4. The electric toothbrush seal waterproof structure as claimed in claim 3, wherein the bracket damping soft rubber comprises a third cylindrical part and a fourth cylindrical part with a circular extension part, a fourth through hole for the driving shaft to pass through is arranged in the middle of the fourth cylindrical part, the inner wall of the fourth through hole is in contact with the outer wall of the convex ring, and the upper surface of the fourth cylindrical part is located below the upper surface of the convex ring;

5. The electric toothbrush according to claim 4, wherein the third cylindrical portion is located inside the mounting space, a bottom surface of the first cylindrical portion contacts with an upper surface of the fourth cylindrical portion, and a lower surface of the circular extension portion of the second cylindrical portion contacts with an upper surface of the circular extension portion of the fourth cylindrical portion.

6. An electric toothbrush, characterized in that, including sealed waterproof structure, support, the control unit and brush first subassembly of any of claims 1-5, brush first subassembly installation the tip of handle, the support mounting is in inside the handle, and support top installation electronic unit and the control unit, the drive shaft of electronic unit passes the open end of handle stretches into inside the brush first subassembly, the control unit control electronic unit motion, waterproof sealing member suit is in the drive shaft, and waterproof sealing member with the inboard installation of mutually supporting of open end of handle forms sealedly.

7. The electric toothbrush of claim 6, further comprising a first motor cushion and a second motor cushion, wherein the first motor cushion is mounted on the front end of the electric unit and is located on the bottom of the waterproof sealing member, and the second motor cushion is mounted on the bottom of the electric unit and is engaged with the bracket for cushioning.

8. The electric toothbrush according to claim 7, further comprising a motor cover, wherein the motor cover is sleeved outside the first motor cushion, four assembling holes are formed in the motor cover along the circumferential direction of the motor cover, four protrusions are arranged on the outer side of the top of the bracket at intervals, the protrusions and the assembling holes are assembled in a combined manner, and a buckle matched with the inner wall of the handle is further arranged on one side of the motor cover.

9. The electric toothbrush according to claim 8, wherein a plurality of first engaging grooves are formed around the motor cover, a plurality of ribs are formed on the outer side of the bracket, a plurality of second engaging grooves are formed on the inner wall of the handle, and the ribs are respectively engaged with the first engaging grooves and the second engaging grooves.