Magnetism intensity adjustable screwdriver

Abstract

The invention discloses a magnetism intensity adjustable screwdriver. The magnetism intensity adjustable screwdriver comprises a screwdriver blade, a screwdriver tube and a handle, wherein the upper end of the screwdriver tube is connected to the handle; the screwdriver tube is of a cylindrical inner hollow structure; the screwdriver tube and the screwdriver blade are made of stainless steel; rare-earth permanent magnet steel is arranged inside the screwdriver tube and is of a strip cylindrical structure; the upper end of the rare-earth permanent magnet steel is guided into the interior of thehandle; a rotary table is arranged on the top of the handle; the lower end of the rotary table is connected to a metal bar which is guided into the interior of the handle; a thread is arranged on thesurface of the lower end of the metal bar; an opening is formed in the center of the upper end of the rare-earth permanent magnet steel; the caliber of the opening is identical to the diameter of themetal bar; a thread is arranged on the inner wall of the opening; and the metal bar is connected to and guided into the opening. Due to adoption of the manner, the magnetism intensity of the screwdriver blade can be flexibly adjusted according to the needs.

Description

technical field [0001] The invention relates to the field of screwdrivers, in particular to a screwdriver with adjustable magnetic strength. Background technique [0002] A screwdriver is a tool used to turn a screw to force it into place. It usually has a thin wedge-shaped head that can be inserted into a slot or notch in the screw head. In order to facilitate the contact between the screwdriver and the screw, the head of most screwdrivers is now All adopt magnetic treatment to make them have a certain degree of magnetism, which can absorb the screws and make them more convenient and humanized to use. However, the magnetism of some screwdrivers is easy to lose with the increase of use time, and in some cases, the magnetism of the screwdrivers If it is too large, it will be difficult to remove small screws after being absorbed, or the magnetic force of the screwdriver is too weak to absorb heavy screws. Contents of the invention [0003] The technical problem mainly solve...

AI Technical Summary

Problems solved by technology

[0002] A screwdriver is a tool used to turn a screw to force it into place. It usually has a thin wedge-shaped head that can be inserted into a slot or notch in the screw head. In order to facilitate the contact between the screwdriver and the screw, the head of most screwdrivers is now All adopt magnetic treatment to make them have a certain degree of magnetism, which can absorb the screws and make them more convenient and humanized to use. However, the magnetism of some screwdrivers is easy to lose with the increase of use time, and in some cases, the magnetism of the screwdrivers Too large, it is difficult to remove small screws, or the magnetic force of the screwdriver is too weak, it is difficult to absorb heavy screws

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