CN111716276A - An electromagnetic screwdriver and screw - Google Patents

Abstract

The invention discloses an electromagnetic screwdriver, comprising a rubber handle, a storage battery, an electromagnetic screwdriver main body, an electromagnet, a sliding rheostat and a power switch. A storage battery installation groove is provided in the upper inner part of the electromagnetic screwdriver main body, and the storage battery is installed in the storage battery installation slot. Inside, the lower part of the outer surface of the electromagnetic screwdriver body is provided with a sliding varistor installation groove, the sliding varistor is installed inside the sliding varistor installation groove, and the slider on the sliding varistor extends out of the sliding varistor installation groove, the A power switch is embedded in the upper part of one side of the outer surface of the main body of the electromagnetic screwdriver; the electromagnetic screwdriver of the present invention tightens the screw of the present invention through the electromagnet, thereby driving the screw of the present invention to complete the screwing and disassembling operations, and the head of the screw does not need to be set The groove makes the screw of the present invention more beautiful, and at the same time has a certain function of preventing theft.

Description

An electromagnetic screwdriver and screw

technical field

The invention belongs to the technical field of hardware, and in particular relates to an electromagnetic screwdriver and a screw.

Background technique

A screw is a tool that uses the physical and mathematical principles of the circular rotation and friction of an object to fasten the mechanism of the object step by step.

Some existing screwdrivers rely on the groove of the screw and the protrusion of the screwdriver when tightening the screw, which also leads to the exposed head of the screw, which is very unsightly, and can be disassembled at will, preventing theft from theft. Poor performance.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an electromagnetic screwdriver and a screw to solve the above-mentioned problems in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: an electromagnetic screwdriver, comprising a rubber handle, a storage battery, an electromagnetic screwdriver main body, an electromagnet, a sliding rheostat and a power switch, and a storage battery installation slot is provided on the inner upper part of the electromagnetic screwdriver main body, The battery is installed inside the battery installation groove, and a sliding varistor installation groove is opened at the lower part of one side of the outer surface of the electromagnetic screwdriver body, the sliding varistor is installed inside the sliding varistor installation groove, and the slider on the sliding varistor extends A sliding varistor installation slot is inserted, a power switch is embedded in the upper part of one side of the outer surface of the electromagnetic screwdriver body, an electromagnet is fixedly installed at the bottom of the electromagnetic screwdriver main body, and a wire groove is opened on the inner lower part of the electromagnetic screwdriver main body, so The rubber handle sleeve is fixed on the top of the main body of the electromagnetic screwdriver, and the bottom of the main body of the electromagnetic screwdriver is set as a rough surface.

Preferably, a charging interface is provided on the outer surface of the electromagnetic screwdriver main body, the battery, electromagnet, sliding rheostat and power switch are connected in series through wires, and the charging interface is connected in series with the battery through wires.

Preferably, the electromagnet is configured as a de-energized electromagnet.

A screw includes a screw body, the top of the screw body is provided with a rough surface, and the rough surface is matched with the electromagnet of claim 1 .

Compared with the prior art, the beneficial effects of the present invention are: the electromagnetic screwdriver of the present invention tightens the screw of the present invention through the electromagnet, thereby driving the screw of the present invention to complete the screwing and disassembling operations, and the head of the screw does not need to be provided with a concave. The groove of the present invention makes the screw more beautiful and has a certain anti-theft function. The top of the screw body is set as a rough surface, and the bottom of the electromagnetic screwdriver body is set as a rough surface, so as to improve the friction coefficient, and then in the electromagnet adsorption. In the process, a larger torque is obtained, and the current size can be adjusted by the sliding rheostat, thereby changing the suction force of the electromagnet on the screw, and the battery can be charged through the charging interface.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention.

1 is a schematic diagram of the internal structure of an electromagnetic screwdriver of the present invention;

FIG. 2 is a schematic view of the screw structure of the present invention.

In the picture: 1. Rubber handle; 2. Battery; 3. Battery installation slot; 4. Charging interface; 5. Wire slot; 6. Electromagnetic screwdriver body; 7. Electromagnet; 8. Sliding rheostat; 9. Sliding rheostat installation slot ; 10. Power switch; 11. Rough surface.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the orientations or positional relationships shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arranged", "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

1-2, the present invention provides a technical solution: an electromagnetic screwdriver, comprising a rubber handle 1, a battery 2, an electromagnetic screwdriver main body 6, an electromagnet 7, a sliding varistor 8 and a power switch 10, an electromagnetic screwdriver main body 6 A battery installation slot 3 is opened in the upper part of the inner part of the electromagnetic screwdriver, the battery 2 is installed in the interior of the battery installation slot 3, and a sliding varistor installation slot 9 is opened on the lower part of the outer surface of the electromagnetic screwdriver main body 6, and the sliding varistor 8 is installed in the sliding varistor installation slot 9. Inside, and the slider on the sliding varistor 8 extends out of the sliding varistor installation slot 9, the power switch 10 is embedded in the upper part of one side of the outer surface of the electromagnetic screwdriver main body 6, and the bottom of the electromagnetic screwdriver main body 6 is fixedly installed with an electromagnet 7, and the electromagnetic screwdriver The inner lower part of the main body 6 is provided with a wire groove 5 through which the wire connecting the electromagnet 7 passes.

In this embodiment, preferably, a charging interface 4 is provided on the other outer surface of the main body 6 of the electromagnetic screwdriver. The battery 2, the electromagnet 7, the sliding varistor 8 and the power switch 10 are connected in series by wires, and the charging interface 4 is connected by wires. connected in series with battery 2.

In this embodiment, preferably, the electromagnet 7 is set as a de-energized electromagnet, and the de-energized electromagnet has the characteristics of stable suction and energy saving.

A screw includes a screw body, the top of the screw body is provided with a rough surface 11 , and the rough surface 11 is matched with the electromagnet 7 in claim 1 .

The working principle and use process of the present invention: the electromagnetic screwdriver of the present invention sucks the screw of the present invention through the electromagnet 7, thereby driving the screw of the present invention to complete the screwing and disassembling operations, and the head of the screw does not need to be provided with grooves, so that the The invented screw is more beautiful and has a certain anti-theft function. The top of the screw body is set as a rough surface 11, and the bottom of the electromagnetic screwdriver body is set as a rough surface, so as to improve the friction coefficient, and then in the adsorption process of the electromagnet 7. To obtain a larger torque, the magnitude of the current can be adjusted through the sliding rheostat 8, thereby changing the suction force of the electromagnet 7 on the screw, and the battery 2 can be charged through the charging interface 4.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (4)

1. An electromagnetic screwdriver, comprising a rubber handle (1), a battery (2), an electromagnetic screwdriver body (6), an electromagnet (7), a sliding rheostat (8) and a power switch (10), characterized in that: the A battery installation groove (3) is opened on the inner upper part of the main body of the electromagnetic screwdriver (6), the battery (2) is installed in the interior of the battery installation groove (3), and the lower part of the outer surface side of the electromagnetic screwdriver main body (6) is opened There is a sliding varistor installation groove (9), the sliding varistor (8) is installed inside the sliding varistor installation groove (9), and the slider on the sliding varistor (8) extends out of the sliding varistor installation groove (9), the A power switch (10) is embedded in the upper part of one side of the outer surface of the electromagnetic screwdriver main body (6), an electromagnet (7) is fixedly installed at the bottom of the electromagnetic screwdriver main body (6), and the inside of the electromagnetic screwdriver main body (6) The lower part is provided with a wire groove (5), the rubber handle (1) is sleeved and fixed on the top of the electromagnetic screwdriver main body (6), and the bottom of the electromagnetic screwdriver main body (6) is set as a rough surface. 2. An electromagnetic screwdriver and screw according to claim 1, characterized in that: a charging interface (4) is provided on the outer surface of the electromagnetic screwdriver main body (6), the battery (2), The electromagnet (7), the sliding rheostat (8) and the power switch (10) are connected in series through wires, and the charging interface (4) is connected in series with the storage battery (2) through wires. 3 . The electromagnetic screwdriver and screw according to claim 1 , wherein the electromagnet ( 7 ) is set as a power-loss electromagnet. 4 . 4. A screw, comprising a screw body, characterized in that: the top of the screw body is provided with a rough surface (11), and the rough surface (11) is matched with the electromagnet (7) of claim 1.

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