Multi-functional screwdriver with transformable head

Abstract

The invention relates to a multi-functional screwdriver with a transformable head, in particular to a screwdriver which is integrated with different openings such as straight line shape, hexangular shape, triangle shape and concave shape and specifications, and cross-shaped and star-like screws can be assembled and disassembled by the screwdriver, and the head of the screwdriver does not need dismounting and replacement. A set of retractor device is arranged in a handle of the screwdriver, and the retractor device uses at least seven or more than seven steel needles and springs with the corresponding quantity, pistons and piston cylinders of piston cavities, with the corresponding quantity to form a retractable screwdriver body, the outer side of the exposed part of the screwdriver body isprovided with a protective hollow steel jacket, the steel needles at the position of the screwdriver head can contract under the external extrusion action force which is larger than the critical deformation elasticity of the internal spring, at the moment, the spring is compressed and stores energy, when the external extrusion action force disappears, the spring releases energy to push the pistonand the steel needle to be stretched out and reset.

Description

technical field [0001] The invention relates to a multifunctional screwdriver with a deformable cutter head, which is a screwdriver tool that can change the cutter head of a corresponding specification for a variety of screws with different shapes and specifications, especially for the characters "one" and "ten". Screws with word, inner hexagon, inner triangle, "star" and "convex" openings are all eligible for disassembly and assembly. Background technique [0002] Screwdrivers are used in all installation and maintenance projects, among which the "one" and "ten"-shaped screwdrivers are used the most. Screws of various shapes and specifications and corresponding screwdriver tools are applied. In daily work, we often encounter uncommonly used screws such as hexagonal sockets and "convex"-shaped openings. We cannot work because there are no screwdriver tools with corresponding specifications. Among the commonly used screwdriver tools, most of them are It is a one-to-one scre...

AI Technical Summary

Problems solved by technology

In daily work, we often encounter uncommonly used screws such as hexagonal sockets and "convex"-shaped openings. We cannot work because there are no screwdriver tools with corresponding specifications. Among the commonly used screwdriver tools, most of them are It is a one-to-one screwdriver tool of a single specification. If all the screwdriver tools of all specifications are equipped, not only the cost of the tool will increase, but also it will be inconvenient to carry

With the development of society, a variety of screwdriver tools with replaceable screwdriver bits have been produced on the market, which are equipped with screwdriver bits of multiple specifications, but the replacement of the screwdriver bits is troublesome and easy to lose, so the popularization and application in the market is limited. resistance

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