A screwdriver capable of changing the size of the blade

Abstract

The invention discloses a screwdriver with a size-adjustable tool bit. The screwdriver comprises a screwdriver handle, a screwdriver rod and a big tool bit, wherein an anti-sliding groove is formed inthe outer surface of the upper side of the screwdriver handle, a middle tool bit adjusting nut is arranged below the anti-sliding groove, a small tool bit adjusting nut is arranged below the middle tool bit adjusting nut, a handle rubber sleeve is arranged below the screwdriver handle, and the screwdriver rod is mounted in the middle of the surface of the lower side of the screwdriver handle. Thescrewdriver is designed into a multi-layer embedding manner, the middle tool bit is embedded into the big tool bit, the small tool bit is embedded into the middle tool bit, the tool bits are controlled by virtue of corresponding adjusting nuts on the screwdriver handle and can be telescopically adjusted, so that the tool bits can be changed into different sizes, the adaptability of the single screwdriver to screw types is increased, and daily articles can be conveniently detached and maintained in the daily life of the people.

Description

technical field [0001] The invention belongs to the technical field of maintenance tools, and in particular relates to a screwdriver capable of changing the size of a cutter head. Background technique [0002] A screwdriver is a tool used to turn a screw to force it into place, usually with a thin wedge-shaped head that fits into a slot or notch in the screw head, called a "screwdriver" in the dialects of Beijing, Tianjin, Hebei, Shanxi, Henan and Shaanxi, Anhui It is called "driver" in China, Hebei and other places, "Gaizi" in the central and western regions, and "rotary chisel" in the Yangtze River Delta region. There are mainly two kinds of word and cross. There are also hexagonal screwdrivers that are common, including inner hexagonal and outer hexagonal. [0003] The original screwdriver bit generally cannot be changed. When using a screwdriver for disassembly and maintenance, professionals generally need to carry many types of screwdrivers for maintenance, but famili...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a screwdriver capable of changing the size of the cutter head, so as to solve the problem that the original screwdriver cutter head proposed in the above-mentioned background technology cannot be changed generally. When using a screwdriver for disassembly and maintenance, professionals generally need to carry many There are not many screwdrivers in the family, which makes most families often have the embarrassment that the model is not correct and cannot be used when using the screwdriver for daily use, which affects the quality of daily life.

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