Multi-functional screwdriver with transformable head

A screwdriver, multi-functional technology, applied in the direction of screwdrivers, wrenches, wrench, etc., can solve the problems of easy loss, inability to work, popularization and application resistance, etc.

Inactive Publication Date: 2010-03-17
曾洪峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ...

Method used

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  • Multi-functional screwdriver with transformable head
  • Multi-functional screwdriver with transformable head
  • Multi-functional screwdriver with transformable head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The exemplary embodiment is a multifunctional screwdriver before use. The middle part of the handle 2 is hollow for installing telescopic devices. The outer ring of the handle 2 has at least one concave arc groove 32 for increasing friction and expanding softness. rubbing strips.

[0023] The upper end of the handle 2 is a screwdriver cover 1, the exposed part of the cover 1 is a convex circle, the cover 1 and the handle 2 are connected by an external thread 18 and an internal thread 19, and the top of the cover 1 has two concave operation ports 20 for taking out The screwdriver bit protective cover 30 is fixed by the cylinder 11 in the circular cavity 31 . There is coin operation mouth 10 by the center of concave surface operation mouth 20, circular cavity 31, cylinder 11, when this operation mouth 10 puts into one yuan coin, promptly can disassemble the cover 1 of screwdriver with coin.

[0024] The spacer 14 is interposed between the cover 1 and the piston cylinder ...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B25B15/00B25B23/16B25B23/00
Inventor 曾洪峰
Owner 曾洪峰
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