CN210056310U

CN210056310U - Electric toothbrush

Info

Publication number: CN210056310U
Application number: CN201920154792.6U
Authority: CN
Inventors: 陈浩骏; 刘铸
Original assignee: Shenzhen City Same Co Ltd
Current assignee: Shenzhen City Same Co Ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2020-02-14
Anticipated expiration: 2029-01-29

Abstract

The utility model provides an electric toothbrush, which comprises a shell, a brush head arranged on the shell, an internal component arranged in the shell and used for driving the brush head to generate high-frequency vibration, an internal fixing piece and a dustproof cap, wherein the dustproof cap is provided with a sealing gasket; the internal fixing piece is detachably arranged on the shell, and the internal fixing piece is abutted and fixed with the internal assembly; dustproof cap detachably sets up on the shell, just dustproof cap surrounds the setting and is in outside the internal fixation spare, seal ring with the shell closely cooperates. Compared with the prior art, the beneficial effects of the technical scheme are that: on one hand, the internal components can be fixed in the shell through the internal fixing piece, when parts need to be replaced or maintained, the operation can be carried out by taking down the internal fixing piece, and the internal fixing piece has the advantage of convenience in disassembly and assembly; on the other hand, through dustproof cap combination seal ring, can play dustproof waterproof effect.

Description

Electric toothbrush

Technical Field

The utility model relates to a consumer electronics technical field especially relates to an electric toothbrush.

Background

The electric toothbrush has the working principle that the brush head generates high-frequency vibration through the quick rotation or vibration of the motor core, toothpaste is instantly decomposed into fine foam to deeply clean slits between teeth, and meanwhile, the vibration of the bristles can promote the blood circulation of an oral cavity and has a massage effect on gum tissues. Electric toothbrushes have become more widely used in recent years because their cleaning effect is much better than that of conventional toothbrushes. During the process of replacing parts or repairing the electric toothbrush, the internal components thereof need to be removed. The electric toothbrush in the prior art has the defect of difficult disassembly and assembly, and is inconvenient to replace parts or maintain.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an electric toothbrush, have easy dismounting's advantage, be convenient for carry on the part and change or maintain.

The utility model provides a technical scheme that technical problem adopted as follows:

an electric toothbrush comprises a shell, a brush head arranged on the shell, an internal assembly arranged in the shell and used for driving the brush head to generate high-frequency vibration, an internal fixing piece and a dustproof cap, wherein the dustproof cap is provided with a sealing gasket;

the internal fixing piece is detachably arranged on the shell, and the internal fixing piece is abutted and fixed with the internal assembly;

dustproof cap detachably sets up on the shell, just dustproof cap surrounds the setting and is in outside the internal fixation spare, seal ring with the shell closely cooperates.

Compared with the prior art, the beneficial effects of the technical scheme are that: on one hand, the internal components can be fixed in the shell through the internal fixing piece, when parts need to be replaced or maintained, the operation can be carried out by taking down the internal fixing piece, and the internal fixing piece has the advantage of convenience in disassembly and assembly; on the other hand, through dustproof cap combination seal ring, can play dustproof waterproof effect.

Furthermore, a top cover is arranged at the upper end of the shell, an opening is formed in the lower end of the shell, and internal threads are formed in the lower end of the shell;

the internal fixing piece is provided with a first external thread, and the internal fixing piece is arranged on the shell through the threaded matching of the first external thread and the internal thread; and a second external thread is arranged on the dustproof cap, and the dustproof cap is arranged on the shell through the thread matching of the second external thread and the internal thread.

The beneficial effect who adopts above-mentioned scheme is: through the threaded connection of interior mounting and shell for interior subassembly detachably sets up in the shell, when needs carry out part change or when maintaining, pull down interior mounting alright take out the interior subassembly, have easy dismounting's advantage.

Further, the shell comprises a circular truncated cone shell and a cylinder shell, the circular truncated cone shell is of a circular truncated cone-shaped structure, and the cylinder shell is of a cylindrical structure;

the top cover is arranged at the upper end of the circular truncated cone shell, the lower end of the circular truncated cone shell is connected with the upper end of the cylindrical shell, and the internal thread is arranged at the lower end of the cylindrical shell.

The beneficial effect who adopts above-mentioned scheme is: the circular truncated cone shell is of a structure gradually narrowed from bottom to top, so that the appearance of the whole electric toothbrush is more in line with human engineering, a user can conveniently grip the electric toothbrush, gaps can be reduced, and dirty can be prevented from being stored.

Further, the inner fixing member includes a first male screw portion on which the first male screw is provided, and a first cylindrical portion having a radius smaller than that of the outer shell;

the dustproof cap is sleeved outside the first cylindrical part and is arranged on the shell through the threaded matching of the second external thread and the internal thread.

The beneficial effect who adopts above-mentioned scheme is: a space for sleeving the dustproof cap is reserved between the first cylindrical part and the shell, the dustproof cap and the internal fixing part are arranged on the shell through the same group of internal threads, the advantage of convenience in disassembly and assembly is achieved, meanwhile, the structure of a product is greatly simplified, and production cost is reduced.

Further, one end of the first cylindrical part, which is far away from the first external thread part, extends to the outside of the opening of the shell.

The beneficial effect who adopts above-mentioned scheme is: when a user needs to disassemble and assemble, the internal fixing piece can be disassembled by rotating the first cylindrical part, and then the disassembly and assembly are carried out, so that one end of the first cylindrical part extends out of the opening of the shell, and the user can conveniently touch and operate the first cylindrical part.

Further, a plurality of convex blocks are provided on the outer periphery of the first cylindrical portion.

The beneficial effect who adopts above-mentioned scheme is: the friction is increased by the raised blocks.

Further, the dust cap includes a second external thread portion provided on the second external thread portion and a second cylindrical portion having a radius equal to that of the housing;

the second external thread part is connected with the second cylindrical part through a gasket groove, and the gasket is arranged in the gasket groove; when the dustproof cap is installed on the shell, the sealing washer is abutted to the inner wall of the shell.

The beneficial effect who adopts above-mentioned scheme is: the radius of the second cylindrical portion is equal to that of the housing, so that the integrity of the electric toothbrush is enhanced, and the sealing washer can be more stably seated on the dust cap through the washer groove.

Further, the sealing washer is a rubber sealing washer.

The beneficial effect who adopts above-mentioned scheme is: the rubber sealing washer has elasticity, makes the sealing washer can contact with the shell more fully, and sealing performance is better.

Furthermore, a through hole is formed in the top cover, and a driving shaft is arranged in the through hole; the brush head is sleeved on the driving shaft, and the internal component drives the brush head to generate high-frequency vibration through the driving shaft.

Further, the internal assembly comprises an inner shell, a motor, a storage battery, a PCB circuit board and a charging male connector;

the upper end of the inner shell abuts against the top cover, and the lower end of the inner shell abuts against the internal fixing piece; the motor, the battery with the PCB circuit board nestification is in the inner shell, the public joint integration that charges sets up the lower extreme of inner shell and with PCB circuit board electrical property links to each other, the public joint that charges passes inside mounting and extends to outside the inside mounting.

The beneficial effect who adopts above-mentioned scheme is: the inner shell mainly plays a supporting role, so that the inner component forms a whole on the inner shell, and the stability of the inner component is improved.

Further, the male connector that charges is USB male connector or Mini USB male connector or Micro USB male connector or TYPE-C male connector.

The beneficial effect who adopts above-mentioned scheme is: the purpose of adopting the male joint that charges is to realize quick charge under the condition that does not use the charging wire, and can specifically adopt USB male joint, Mini USB male joint, Micro USB male joint or TYPE-C male joint according to actual conditions.

Drawings

Fig. 1 is an overall schematic view of an electric toothbrush of the present invention.

Fig. 2 is an exploded view of the electric toothbrush of the present invention.

Fig. 3 is a schematic view of an inner fixing member of an electric toothbrush according to the present invention.

Fig. 4 is a schematic view of a dust cap of the electric toothbrush of the present invention.

Fig. 5 is an exploded view of the internal components of an electric toothbrush of the present invention.

In the figures, the list of components represented by the various reference numbers is as follows:

the device comprises a shell 1, an inner assembly 2, an inner fixing piece 3, a dust cap 4, a sealing gasket 5 and a driving shaft 6;

a circular truncated cone housing 11, a cylindrical housing 12;

the device comprises an inner shell 21, a motor 22, a storage battery 23, a PCB 24 and a charging male connector 25;

a first male screw portion 31, a first cylindrical portion 32, and a projection 33;

a second external thread portion 41, a second cylindrical portion 42, and a washer groove 43.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", 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 simplification of description, but do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. When an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

As shown in fig. 1 and 2, a power toothbrush includes a housing 1, an inner assembly 2, and a brush head (not shown). The shell 1 is the portion that the user grasped in the use, is provided with the brush hair on the brush head, and interior subassembly 2 is used for driving the brush head and produces high frequency vibrations, and during the use, the user holds shell 1 and cleans the oral cavity through the brush head.

In order to realize the easy dismounting of inside subassembly 2, the utility model discloses an innovation point lies in still including internal fixation 3, dustproof cap 4 and seal ring 5, seal ring 5 sets up on the dustproof cap 4.

The internal fixing member 3 is detachably disposed on the housing 1, and the internal fixing member 3 abuts and fixes the internal assembly 2. Can fix the inside subassembly in the shell through inside mounting, when needs carry out part change or maintenance, take off inside mounting and can operate, have easy dismounting's advantage.

Dustproof cap 4 detachably sets up on the shell 1, just dustproof cap 4 surrounds the setting outside the internal fixation spare 3, seal ring 5 with shell 1 closely cooperates. Through dustproof cap combination seal ring, can play dustproof and waterproof's effect.

Specifically, the housing 1 is of a cylindrical structure, a top cover is arranged at the upper end of the housing 1, an opening is formed at the lower end of the housing 1, and internal threads are arranged at the lower end of the housing 1; correspondingly, a first external thread is arranged on the internal fixing piece 3, and the internal fixing piece 3 is arranged on the shell 1 through the threaded matching of the first external thread and the internal thread; and a second external thread is arranged on the dust cap 4, and the dust cap 4 is arranged on the shell 1 through the threaded matching of the second external thread and the internal thread. The internal component 2 is arranged in the shell 1, the upper end of the internal component 2 is abutted to the top cover, and the lower end of the internal component 2 is abutted to the internal fixing piece 3. In the electric toothbrush of the present invention, the end close to the brush head is the upper end, and the end close to the dust cap is the lower end.

During specific installation, put into shell 1 earlier inside subassembly 2 and make inside subassembly 2's upper end butt on the top cap, then through first external screw thread and internal thread screw-thread fit, install inside mounting 3 on shell 1, at the in-process of first external screw thread and internal thread interlock gradually, inside mounting 3 butt in inside subassembly 2's lower extreme gradually to fix inside subassembly 2 in shell 1. After the internal fixing piece 3 is installed, the dustproof cap 4 is installed on the shell 1 through the thread fit of the second external threads and the internal threads, and the dustproof cap 4 is matched with the sealing washer 5 to achieve the dustproof and waterproof functions. When specifically dismantling, only need take off dust cap 4 and interior mounting 3 successively, can take out interior subassembly 2, be convenient for carry out the part and change or maintain.

The utility model discloses an innovation point lies in realizing the installation of inside mounting 3 and dustproof cap 4 simultaneously through a set of internal thread, and the first external screw thread on the inside mounting 3 carries out threaded connection with the internal thread of 1 lower extreme of shell promptly, and the second external screw thread on the dustproof cap 4 also carries out threaded connection with the internal thread of 1 lower extreme of shell. Realize two fixed installations of part through a set of internal thread, not only be convenient for carry out part change or maintenance, still have simple structure's advantage, need not be provided with corresponding part respectively and install internal fixation piece 3 and dust cap 4, consequently, can also show reduction in production cost.

As shown in fig. 2, the housing 1 includes a circular truncated cone shell 11 and a cylinder shell 12, the circular truncated cone shell 11 is a circular truncated cone-shaped structure, and the cylinder shell 12 is a cylindrical structure; the top cover is arranged at the upper end of the circular truncated cone shell 11, the lower end of the circular truncated cone shell 11 is connected with the upper end of the cylindrical shell 12, and the internal thread is arranged at the lower end of the cylindrical shell 12. The circular truncated cone shell 11 and the cylindrical shell 12 are of an integrated structure.

The circular truncated cone shell 11 is of a structure gradually narrowing from bottom to top, so that on one hand, the appearance of the whole electric toothbrush is more in line with human engineering, a user can conveniently grasp the electric toothbrush, gaps can be reduced, and dirt can be prevented from being stored; on the other hand, the upper end of the inner component 2 is abutted to the top cover and simultaneously embedded into the circular truncated cone shell 11, so that the fixing effect is better.

A plane parallel to the bottom surface of the cone is used for cutting the cone, and the part between the bottom surface and the section is called a circular truncated cone. The circular truncated cone shell 11 in the utility model is the side of the circular truncated cone, and the top cover is arranged on the upper surface of the circular truncated cone. Specifically, the circular truncated cone housing 11 has two implementation manners. In the first mode, the circular truncated cone shell 11 is a side surface of a circular truncated cone, and a certain edge angle is formed between the top cover and the circular truncated cone shell 11 and is not in smooth transition; in the second mode, the transition between the top cover and the circular truncated cone housing 11 is smooth. Fig. 2 shows a second embodiment of the circular truncated cone housing 11.

As shown in fig. 3, the inner fixing member 3 includes a first male screw portion 31 and a first cylindrical portion 32, the first male screw being provided on the first male screw portion 31, the first cylindrical portion 32 having a radius smaller than that of the outer shell 1; the dust cap 4 is sleeved outside the first cylindrical part 32 and is arranged on the housing 1 through the threaded matching of the second external thread and the internal thread.

The first cylindrical portion 32 has a cylindrical structure, and the radius of the first cylindrical portion 32 is smaller than that of the housing 1, so that a space for accommodating the dust cap is reserved between the first cylindrical portion 32 and the housing 1. Specifically, the inner fixing member 3 is mounted, and the dust cap is fitted into the space between the first cylindrical portion 32 and the housing 1, thereby mounting the dust cap on the housing 1.

Preferably, an end of the first cylindrical portion 32 remote from the first male screw portion 31 extends to the outside of the opening of the housing 1. The length of the first cylindrical portion 32 is only required to be set properly, so that the first cylindrical portion 32 can be ensured to extend out of the opening of the housing 1 after being completely installed in the housing 1, thereby facilitating the hand holding. The length of the first cylindrical portion 32 is not as long as possible, and the installation space of the dust cap cannot be obstructed after the first cylindrical portion 32 is completely installed in the housing 1.

Preferably, the first cylindrical portion 32 is provided at its outer periphery with a plurality of convex blocks 33. The friction force is increased by the convex blocks 33, so that the installation or the disassembly is more convenient. More preferably, the plurality of protrusions 33 do not spread to the edge of the first cylindrical part 32, effectively preventing scratches.

As shown in fig. 4, the dust cap 4 includes a second external thread portion 41 provided on the second external thread portion 41 and a second cylindrical portion 42 having a radius of the second cylindrical portion 42 equal to that of the housing 1; the second external thread portion 41 and the second cylindrical portion 42 are connected by a gasket groove 43, and the sealing gasket 5 is disposed in the gasket groove 43; when the dust cap 4 is installed on the housing 1, the sealing gasket 5 abuts against the inner wall of the housing 1.

The second cylindrical portion 42 has a bottomed cylindrical structure and can play a role of dust prevention; and the sealing gasket 5 provided in the second cylindrical portion 42 functions as a waterproof. The sealing washer 5 is a rubber sealing washer. Preferably, the rubber-like sealing gasket has elasticity so that the sealing gasket 5 can be more sufficiently contacted with the housing 1, and the sealing performance is better.

The top cover is provided with a through hole, and a driving shaft 6 is arranged in the through hole; the brush head is sleeved on the driving shaft 6, and the inner assembly 2 drives the brush head to generate high-frequency vibration through the driving shaft 6.

As shown in fig. 5, the internal assembly 2 includes an internal case 21, a motor 22, a storage battery 23, a PCB circuit board 24, and a charging male connector 25; the upper end of the inner shell 21 abuts against the top cover, and the lower end of the inner shell 21 abuts against the internal fixing piece 3; the motor 22, the storage battery 23 and the PCB 24 are nested in the inner casing 21, the charging male connector 25 is integrally arranged at the lower end of the inner casing 21 and electrically connected with the PCB 24, and the charging male connector 25 penetrates through the inner fixing member 3 and extends out of the inner fixing member 3.

The inner shell 21 mainly plays a supporting role, and the motor 22, the storage battery 23, the PCB 24, the charging male connector 25 and the like are arranged on the inner shell 21, so that the internal component 2 is integrated on the inner shell 21, and the stability of the internal component 2 is improved.

Specifically, the charging male connector 25 is disposed at the lower end of the inner housing 21, and after the inner fixing member 3 is mounted, the charging male connector 25 passes through the first cylindrical portion 32 of the inner fixing member 3 and extends to the outside of the inner fixing member 3, so that the charging male connector 25 can be directly connected to the charging male connector for charging. After the internal fixing part 3 is installed, the whole electric toothbrush can be sealed by installing the dustproof cap 4.

Specifically, the charging male connector 25 is a USB male connector, a Mini USB male connector, a Micro USB male connector, or a TYPE-C male connector. The purpose of adopting male connector 25 that charges is to realize quick charge under the condition of not using the charging wire, and can adopt USB male connector, Mini USB male connector, Micro USB male connector or TYPE-C male connector according to actual conditions specifically. Correspondingly, the charging seat is provided with a female connector corresponding to the male connector.

It should be noted that the innovation point of the present invention is not the circuit structure and connection mode of the PCB 24, and the circuit structure and connection mode of the PCB 24 that can support the electric toothbrush in the prior art can be used in the present invention.

To sum up, the utility model provides an electric toothbrush realizes that the installation of internal fixing piece 3 and dustproof cap 4 is fixed through a set of internal thread, not only is convenient for carry out the part and changes or maintain, still has simple structure's advantage, need not be provided with corresponding part respectively and installs internal fixing piece 3 and dustproof cap 4, consequently, can also show reduction in production cost. When the part is changed or maintained, the internal component 2 can be taken out by detaching the internal fixing part 3, and the device has the advantage of convenient disassembly and assembly.

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. An electric toothbrush, including the shell, set up brush head on the shell, and set up in the shell be used for driving brush head produces the inner assembly of high frequency vibrations, its characterized in that: the dustproof cover is provided with a sealing gasket;

2. An electric toothbrush according to claim 1, wherein: a top cover is arranged at the upper end of the shell, an opening is formed in the lower end of the shell, and internal threads are formed in the lower end of the shell;

3. An electric toothbrush according to claim 2, wherein: the shell comprises a circular truncated cone shell and a cylinder shell, the circular truncated cone shell is of a circular truncated cone-shaped structure, and the cylinder shell is of a cylindrical structure;

4. An electric toothbrush according to claim 2, wherein: the inner fixing member includes a first external thread portion on which the first external thread is provided, and a first cylindrical portion having a radius smaller than that of the housing.

5. An electric toothbrush according to claim 4, wherein: one end of the first cylindrical part, which is far away from the first external thread part, extends out of the opening of the shell.

6. An electric toothbrush according to claim 2, wherein: the dustproof cap comprises a second external thread part and a second cylindrical part, the second external thread is arranged on the second external thread part, and the radius of the second cylindrical part is equal to that of the shell;

7. An electric toothbrush according to claim 1, wherein: the sealing washer is a rubber sealing washer.

8. An electric toothbrush according to claim 2, wherein: the top cover is provided with a through hole, and a driving shaft is arranged in the through hole; the brush head is sleeved on the driving shaft, and the internal component drives the brush head to generate high-frequency vibration through the driving shaft.

9. An electric toothbrush according to claim 8, wherein: the internal component comprises an inner shell, a motor, a storage battery, a PCB circuit board and a charging male connector;

10. An electric toothbrush according to claim 9, wherein: the charging male connector is a USB male connector or a Mini USB male connector or a Micro USB male connector or a TYPE-C male connector.