Screwdriver with electric heating function

Abstract

The invention relates to a screwdriver with electric heating function, which comprises a handle. A cylindrical fixing cavity is arranged in the middle of the handle, and an annular support protrusion is arranged at one end of the fixing cavity. Connecting sleeve, supporting sleeve and fixing sleeve, wherein one end of the connecting sleeve is in contact with the supporting protrusion, and a number of bar-shaped protrusion keys are arranged in a circular array on the inner wall of the connecting sleeve; the fixing sleeve is fixedly connected with the inner wall of the fixed cavity through threads, The inner wall of the sleeve is also threadedly connected with a top cover; a number of bar-shaped grooves corresponding to the raised keys are arranged on the cutter head, and the cutter head is slidingly connected with the connecting sleeve through the bar-shaped grooves, and a heating device is also provided in the fixed cavity. Mechanism, the heating mechanism includes a heat conduction block and an electric heating mechanism installed on the upper part of the heat conduction block, a number of fixing holes with top openings are processed in the heat conduction block, the electric heating mechanism includes a fixing block made of insulating material, and a number of The electric heating rod corresponding to the aforementioned fixing hole.

Description

technical field [0001] The invention relates to a screwdriver with electric heating function, which belongs to the field of hardware tools. Background technique [0002] As a derivative of a screwdriver, the multifunctional screwdriver is widely used in dismantling complex equipment because of its replaceable head structure. However, the traditional multifunctional screwdriver has a magnetic head or a spring coil For clamping type positive installation, the cutter head is installed on the screwdriver handle through the installation hole in front of the handle, and the cutter head is easy to disengage due to excessive pulling force, so the cutter head is easy to fall into the screwdriver handle. Inside the device, difficult to remove. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the technical problem that the bit of the multifunctional screwdriver is easy to fall off in the prior art, and provide a screwdrive...

AI Technical Summary

Problems solved by technology

[0002] As a derivative of a screwdriver, the multifunctional screwdriver is widely used in dismantling complex equipment because of its replaceable head structure. However, the traditional multifunctional screwdriver has a magnetic head or a spring coil For clamping type positive installation, the cutter head is installed on the screwdriver handle through the installation hole in front of the handle, and the cutter head is easy to disengage due to excessive pulling force, so the cutter head is easy to fall into the screwdriver handle. inside the device, difficult to remove

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