Multipurpose electric grinder

Abstract

The utility model relates to the technical field of electric grinders, in particular to a multipurpose electric grinder which comprises an electric grinder body (1), one side of the electric grinder body is connected with an electric grinder head through a connecting body, symmetrical keys are arranged at the right end of the electric grinder head, the other end of the connecting body is connected with an output shaft, a hole is formed in the left end of the connecting body, symmetrical square key grooves are formed in the inner wall of the hole, and the square key grooves are connected with the output shaft. A circular containing groove is formed in the right end of the hole, an annular platform is arranged between the hole and the containing groove, a plurality of symmetrical square clamping grooves are formed in the annular platform, and a spring and a spring pressing block are arranged in the containing groove. The electric grinder has the advantages that the electric grinding head enters the containing groove along the key groove through the hole of the connecting body, rotates by a certain angle and then is embedded into the clamping groove of the annular platform, the spring pressing block presses the electric grinding head, the electric grinder can start to work, and the electric grinder is simple in structure, easy to operate, capable of being matched with grinding heads with multiple functions, wide in application scene, diversified in purpose and suitable for popularization and application. And the rotation angle of the electric grinder head can be adjusted, so that the holding comfort of the electric grinder can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of electric grinders, in particular to a multi-purpose electric grinder. Background Art

[0002] Electric grinders are indispensable power tools in the mold industry, furniture industry, and mechanical processing industry. In recent years, the cultural and art market, small hand-made jewelry industry, and beauty industry have prospered. Electric grinders are commonly known as grinding head machines, electric grinders, and electric grinders. They are power tools that use grinding wheels or grinding discs for sanding. Existing electric grinders are mainly composed of a housing, a motor, a rotating shaft, and an electric grinder head. The principle of the electric grinder is to drive the grinding wheel or grinding disc to fit the outer surface of the workpiece to be sanded by a motor to grind, so as to achieve the effect of grinding. After the electric grinder has been used for a certain period of time, the grinding head body is prone to wear and needs to be replaced. The existing electric grinder head is inconvenient to disassemble and install, and it is not convenient to replace the grinding head body. Or after replacing the grinding head body many times, the grinding head body is not firmly installed and is easy to fall off, affecting normal use. In summary, it is necessary to study a quick-change electric grinder head with a simple structure, easy to install and disassemble, and reliable installation after replacing the grinding head body many times. This is a problem that technicians in this field urgently need to solve. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a multi-purpose electric grinder.

[0004] The technical solution adopted by the utility model to solve its technical problems is: in particular, a multi-purpose electric grinder, including an electric grinder body, one side of the electric grinder body is connected to an electric grinder head through a connector, the right end of the electric grinder head is provided with symmetrical keys, the other end of the connector is connected to an output shaft, the connector is provided with a hole at the left end, the inner wall of the hole is provided with symmetrical square key grooves, the right end of the hole is provided with a circular placement groove, an annular platform is provided between the hole and the placement groove, a plurality of symmetrical square card grooves are provided on the annular platform, and a spring and a spring pressure block are provided in the placement groove.

[0005] According to another embodiment of the utility model, further comprising: the right end opening of the square keyway is located on the annular platform.

[0006] According to another embodiment of the utility model, the spring is a strong spring, the spring pressure block is circular, and the diameter thereof differs from the diameter of the placement slot by less than 1 mm.

[0007] According to another embodiment of the utility model, the electric grinding heads are all provided with keys adapted to the square key slots, and can be adapted to a variety of grinding heads.

[0008] According to another embodiment of the utility model, the rod diameter of the middle section of the electric grinding head is smaller than the hole diameter of the connecting body, and the diameter difference is less than 1 mm.

[0009] The beneficial effect of the utility model is that the electric grinding head enters the placement slot along the key slot through the hole of the connector, and is embedded in the card slot of the annular platform after rotating a certain angle. The spring pressure block presses the electric grinding head, and the electric grinder can start working. This structure is simple and easy to operate, and can also be adapted to grinding heads with multiple functions. It has a wide range of applicable scenarios and uses. The rotation angle of the electric grinding head can be adjusted, which is convenient for adjusting the grip comfort of the electric grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is the overall structural diagram of the electric grinder;

[0012] Figure 2 It is an axial cross-sectional view of the utility model;

[0013] Figure 3 It is the left view of the connector;

[0014] Figure 4 It is a radial structure diagram of the position of the card slot;

[0015] In the figure, there are an electric grinding body 1, a connecting body 2, an electric grinding head 3, a key 4, a square keyway 5, an annular platform 6, a square slot 7, a spring 8, and a spring pressure block 9. DETAILED DESCRIPTION

[0016] like Figure 1-4 It is a schematic diagram of the structure of the utility model, including an electric grinding body 1, one side of the electric grinding body 1 is connected to an electric grinding head 3 through a connector 2, a symmetrical key 4 is provided at the right end of the electric grinding head 3, the other end of the connector 2 is connected to an output shaft, the connector 2 is provided with a hole at the left end, a symmetrical square key slot 5 is provided on the inner wall of the hole, a circular placement slot is provided at the right end of the hole, an annular platform 6 is provided between the hole and the placement slot, a plurality of symmetrical square card slots 7 are provided on the annular platform 6, and a spring 8 and a spring pressure block 9 are provided in the placement slot. The right end opening of the square key slot 5 is located on the annular platform 6, which is convenient for the electric grinding head 3 to penetrate into the hole along the square key slot 5 to the annular platform 6, and the plurality of square card slots 7 on the platform are convenient for rotating the angle of the electric grinding head 3 to adjust the grip comfort of the electric grinder.

[0017] The spring 8 is a strong spring, and the spring pressure block 9 is circular, and the difference between its diameter and the diameter of the placement groove is less than 1 mm, which can improve the stability of the spring pressure block 9 and prevent the electric grinding head 3 from jumping during operation.

[0018] The electric grinding heads 3 are all provided with keys 4 adapted to the square key slots 5, and can be adapted to a variety of grinding heads.

[0019] The rod diameter of the middle section of the electric grinding head 3 is smaller than the hole diameter of the connecting body 2 , and the diameter difference is less than 1 mm, thereby reducing the axial runout of the electric grinding head 3 .

[0020] Working principle: Align the key of the electric grinding head with the keyway on the connector, push it into the hole to the annular platform, rotate the angle of the electric grinding head so that the key card is embedded in the card slot, and adjust it to the most comfortable holding angle. The strong spring acts on the pressure block to press the electric grinding head, and the electric grinder can start working.

[0021] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A multi-purpose electric grinder, characterized in that: The invention comprises an electric grinding body (1), one side of the electric grinding body (1) is connected to an electric grinding head (3) via a connecting body (2), the right end of the electric grinding head (3) is provided with a symmetrical key (4), the other end of the connecting body (2) is connected to an output shaft, the connecting body (2) is provided with a hole at the left end, the inner wall of the hole is provided with a symmetrical square key groove (5), the right end of the hole is provided with a circular placement groove, an annular platform (6) is provided between the hole and the placement groove, a plurality of symmetrical square card grooves (7) are provided on the annular platform (6), and a spring (8) and a spring pressure block (9) are provided in the placement groove.

2. A multi-purpose electric grinder according to claim 1, characterized in that: The right end opening of the square keyway (5) is located on the annular platform (6).

3. A multi-purpose electric grinder according to claim 1, characterized in that: The spring (8) is a strong spring, and the spring pressure block (9) is circular, with a diameter that differs from the diameter of the placement slot by less than 1 mm.

4. A multi-purpose electric grinder according to claim 1, characterized in that: The electric grinding heads (3) are each provided with a key (4) adapted to fit the square keyway (5), and can be adapted to fit a variety of grinding heads.

5. A multi-purpose electric grinder according to claim 1, characterized in that: The rod diameter of the middle section of the electric grinding head (3) is smaller than the hole diameter of the connecting body (2), and the diameter difference is less than 1 mm.

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