CN213489459U

CN213489459U - Clutch structure of electric grinder

Info

Publication number: CN213489459U
Application number: CN202021861771.7U
Authority: CN
Inventors: 潘琦; 郑建永; 刘谦
Original assignee: Richie Nanjing Electronic Technology Co Ltd
Current assignee: Richie Nanjing Electronic Technology Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-22
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses an electric grinder clutch structure, which comprises a clutch which is coaxial with a coupler and is connected with the coupler in a relative motion way; the clutch comprises a front cover, a clutch body and a clutch body, wherein the front cover is coaxially arranged with a transmission block and is abutted against the clutch body; the clutch is provided with a first limiting groove extending along the axial direction of the output shaft on the outer circumference, a positioning block protruding along the radial direction is arranged on the inner circumference of the clutch, a protruding part matched with the first limiting groove is arranged on the shell, and a second limiting groove matched with the positioning block is arranged on the outer circumference of the coupler. The utility model provides a pair of electric mill separation and reunion structure can effectively fix the output, prevents that the output from following the commentaries on classics for more convenient and fast has been dismantled to the bistrique, has improved user experience greatly.

Description

Clutch structure of electric grinder

Technical Field

The utility model relates to a separation and reunion structure especially relates to an electric grinder separation and reunion structure.

Background

The application scenes of the small electric grinder are more and more extensive, and the small electric grinder is particularly used for cleaning teeth, polishing, whitening and the like from industrial appliances to daily life.

Due to the different needs of the scene, we are required to change different working heads in time in order to achieve more effective cleaning. The grinding head is arranged on the grinding head seat and is in transmission connection with the output shaft in the existing electric grinder, when the grinding head is actually held for disassembly, the condition that the grinding head and the main shaft rotate together often occurs, so that the grinding head cannot be taken down, and great inconvenience is brought to disassembly work.

Disclosure of Invention

The utility model aims to provide a: to the problem that above-mentioned prior art exists, provide an electric grinder separation and reunion structure, can effectively fix the output, prevent that the output shaft from following the commentaries on classics for more convenient and fast has been dismantled to the bistrique, has improved user experience greatly.

In order to achieve the above object, the utility model provides an electric grinder clutch structure, wherein the electric grinder comprises a casing, a motor shaft and an output shaft, the output shaft is connected with a coupler in a matching way, a transmission block is connected with the motor shaft and the coupler in a matching way, comprises a clutch, is coaxially arranged with the coupler and is connected with the coupler in a relative motion way; the front cover is coaxial with the transmission block and is abutted against the clutch; the clutch is characterized in that a first limiting groove extending along the axial direction of the output shaft is arranged on the outer circumference of the clutch, a positioning block protruding along the radial direction is arranged on the inner circumference of the clutch, a protruding part matched with the first limiting groove is arranged on the shell, and a second limiting groove matched with the positioning block is arranged on the outer circumference of the coupler.

Optionally, a spring is further included and disposed between the clutch and the housing.

Optionally, the spring is in a compressed state.

Optionally, the positioning block is disposed in the clutch and away from the upper end of the motor shaft.

Optionally, the second limiting groove is arranged on the coupler and far away from the upper end of the motor shaft.

Optionally, the displacement of the clutch along the movement of the output shaft is greater than the height of the locating block.

Optionally, a height of the front cover in the direction of the output shaft is greater than a height of the transmission block.

Compared with the prior art, the application provides an illumination lamp has following beneficial effect:

1. after the working head is disassembled, the clutch can effectively fix the output shaft and prevent the output shaft from rotating along with the output shaft, so that the working head is more convenient and faster to disassemble;

2. the spring arranged between the clutch and the shell in a compressed state can help the clutch to quickly fall back to a position where the clutch is clamped with the coupler, so that the output shaft is locked;

3. the second limiting groove and the positioning block are arranged at the upper end far away from the motor, so that the clutch can be unlocked and locked by generating smaller displacement, the height size of the electric grinder is reduced, and the product becomes more compact;

4. the height of the front cover is larger than that of the transmission block, so that when the working head is installed in place, a certain gap is reserved between the clutch and the transmission block, and the transmission block cannot generate friction with the clutch when rotating.

The following detailed description of the embodiments of the present invention will be described in conjunction with the accompanying drawings.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a cross-sectional view of the whole structure of an embodiment of the present invention.

Fig. 2 is a sectional view of the working head according to an embodiment of the present invention when it is not mounted.

Fig. 3 is an enlarged schematic view of a clutch according to an embodiment of the present invention.

Wherein the reference numerals of figures 1 to 3 are as follows:

1. grinding heads; 2. a burr base; 3. a first bevel gear; 4. a second bevel gear; 5. an output shaft; 6. a spring; 7. a clutch; 8. a front cover; 9. a motor; 10. a motor shaft; 11. a transmission block; 12. a coupling; 13. a first limit groove; 14. positioning blocks; 15 a housing; 16. the working head.

Detailed Description

In order to make the objects, advantages and features of the present invention clearer, a clutch structure of an electric grinder according to the present invention will be described in detail with reference to fig. 1 to 3. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As used in this specification, the singular forms "a", "an" and "the" include plural referents, and the plural forms "a plurality" includes more than two referents unless the content clearly dictates otherwise. As used in this specification, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise, and the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either fixedly connected, detachably connected, or integrally 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.

In the description of the present application, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, back, up, down, left, right", "transverse, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these directional terms are not only and imply that the positions or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the interior and exterior of the outline of the components in this section.

As shown in fig. 1-3, the present invention provides an electric grinder clutch structure, wherein the electric grinder includes a working head 16 located at the upper portion and a motor 9 located at the lower portion. The upper working head 16 includes a housing 15 and the grinding head 1. The grinding head 1 is arranged on a grinding head seat 2 and is in transmission connection with an output shaft 5 through a first bevel gear 3 which is vertically arranged and a second bevel gear 4 which is horizontally arranged and matched with the grinding head seat 2. The output shaft 5 is provided with a coupling 12 matched with the output shaft at one end far away from the grinding head 1.

The clutch device further comprises a clutch 7, wherein a first limiting groove 13 extending along the axial direction of the output shaft is arranged on the outer circumference of the clutch 7, and a positioning block 14 protruding along the radial direction is arranged on the inner circumference of the clutch 7. The clutch 7 and the coupler 12 are coaxially arranged, a second limit groove matched with the positioning block 14 is arranged on the outer circumference of the coupler 12, and the second limit groove is matched with the positioning block 14, so that the relative rotation motion of the clutch 7 and the coupler 12 is limited, namely, the clutch 7 can relatively move relative to the coupler 12. The inside of the housing 15 is provided with a protruding portion which is matched with the first limiting groove 13, the protruding portion fixes the clutch 7 through the first limiting groove 13, and the clutch 7 is limited to rotate relative to the housing 15, so that the clutch 7 can only move along the output shaft 5 relative to the housing 15.

The motor 9 positioned at the lower part is provided with a motor shaft 10, and the transmission block 11 is matched and connected with the motor shaft 10 and the coupler 12 and is used for transmitting the rotating motion of the motor 9 to the output shaft 5 matched with the coupler 12 so as to drive the grinding head 1 to work. The novel motor vehicle front cover further comprises a front cover 8, the front cover 8 and the transmission block 11 are coaxially arranged, and the height of the front cover 8 in the direction of the output shaft is larger than that of the transmission block. The upper end of the front cover 8 abuts against the clutch 7, and when the working head is mounted to the lower portion where the motor is located, the front cover 8 pushes the clutch 7 to move upward along the output shaft 5. In the embodiment, the positioning block 14 is preferably disposed in the clutch and away from the upper end of the motor shaft 10, the second limit groove is disposed on the coupler 12 and away from the upper end of the motor shaft 10, and the displacement of the clutch 7 moving along the output shaft 5 is greater than the height of the positioning block 14. Therefore, when the front cover 8 pushes the clutch 7 to move upwards along the output shaft 5 until the positioning block 14 is disengaged from the second limit groove, the circumferential limit of the coupler 12 is cancelled, so that the motor 9 can drive the coupler 12 to rotate.

When the working head is detached from the lower part where the motor is located, the front cover 8 is separated from the clutch 7, namely, the pushing force applied to the clutch 7 is removed, at the moment, the clutch 7 falls back, the positioning block 14 on the clutch 7 is matched with the second limiting groove on the outer circumference of the coupler 12, the rotating motion of the coupler 12 is limited, namely, the output shaft 5 is locked, and the rotation of the output shaft 5 is limited. When the grinding head 1 is disassembled, the output shaft 5 cannot rotate along with the rotation of the grinding head 1, so that the working head is more convenient and faster to disassemble.

This embodiment preferably employs a spring 6 between the clutch 7 and the housing 15, which spring 6 is in a compressed state to assist the clutch to quickly fall back into engagement with the coupling and thereby lock the output shaft.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Therefore, the utility model provides a pair of multifunctional ultraviolet lamp can strengthen the disinfection effect or improve the air smell according to user's needs when carrying out daily disinfection, has improved user experience.

The disclosed embodiments are not limited to the embodiments shown herein. Any modification, equivalent replacement, improvement and the like made by the utility model shall belong to the protection scope of the utility model.

Claims

1. The utility model provides an electric mill separation and reunion structure, wherein the electric mill includes casing, motor shaft and output shaft, the output shaft is connected with the shaft coupling cooperation, the transmission piece with the motor shaft with the shaft coupling cooperation is connected its characterized in that: the clutch is coaxially arranged with the coupler and is connected with the coupler in a relatively movable manner; the front cover is coaxial with the transmission block and is abutted against the clutch; the clutch is characterized in that a first limiting groove extending along the axial direction of the output shaft is arranged on the outer circumference of the clutch, a positioning block protruding along the radial direction is arranged on the inner circumference of the clutch, a protruding part matched with the first limiting groove is arranged on the shell, and a second limiting groove matched with the positioning block is arranged on the outer circumference of the coupler.

2. The electric grinder clutch structure according to claim 1, wherein: the clutch is arranged between the clutch and the shell.

3. The electric grinder clutch structure according to claim 2, wherein: the spring is in a compressed state.

4. The electric grinder clutch structure according to claim 1, wherein: the locating piece sets up in the clutch and keep away from the upper end of motor shaft.

5. The electric grinder clutch structure according to claim 4, wherein: the second limiting groove is formed in the coupler and far away from the upper end of the motor shaft.

6. The electric grinder clutch structure according to claim 1, wherein: the displacement of the clutch moving along the output shaft is larger than the height of the positioning block.

7. The electric grinder clutch structure according to claim 1, wherein: the height of the front cover in the direction of the output shaft is greater than the height of the transmission block.