Multipurpose wrench

A disc and screw technology, which is applied in the field of multi-purpose wrenches, can solve the problems of external hexagon round head, narrow application range, and inability to use internal hexagon screws, etc., and achieves the effects of simple operation, convenient portability and novel structure design.

Inactive Publication Date: 2013-03-06
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both the dead wrench and the live wrench have certain disadvantages. The dead wrench has too many specifications, and each wrench can only be used for one or tw

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0022] Example 1 A multi-purpose wrench, as shown in Figure-10, includes a disc 1, six identical screws 2 and chucks; the disc 1 is an annular column, and the side of the disc 1 is uniformly distributed with six hole centers on the same plane The same threaded hole on the top, six identical screw rods 2 are respectively placed in the six holes and can be rotated to advance and retreat, and then drive the chuck to advance and retreat;

[0023] One end of each screw rod 2 has horns, and the other end is a section of smooth round rod, which has a convex stop ring 10 at one end and an annular stop groove 9 at the top;

[0024] Each chuck includes an outer card slot seat 7 and an inner card slot seat 8; the outer card slot seat 7 is an integrally formed part of two cuboids with different thicknesses, and one end of the thin cuboid has an apex angle of 120°. V-shaped card slot 3, six identical V-shaped card slots 3 can be respectively stuck on the six corners of the positive hexag...

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PUM

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Abstract

A multipurpose wrench provided by the invention comprises screw rods, a screw disk and jaws. The structure design is novel. The six adjustable wing screw rods are adopted to control the jaws. The multipurpose wrench is suitable for screwing and unscrewing regular hexagon socket head cap screws with counterbores greater than 4.7mm and less than 15mm in diameter and regular hexagon head cap bolts with cap circumcircles greater than 5.7mm and less than 15mm in diameter. The multipurpose wrench is convenient to carry, operation can be carried out without requiring the replacement of the wrench jaws, and nuts or screws can be more easily unscrewed or screwed in a shorter time. The multipurpose wrench is easy to operate and convenient and quick to carry and assemble, and has other advantages.

Description

technical field [0001] The invention relates to a multipurpose wrench. Background technique [0002] A wrench is a hand tool that uses the principle of leverage to turn bolts, screws, nuts, and other openings or sockets that are threaded to hold bolts or nuts. The wrench is usually formed with a clamping handle at one or both ends of the handle to apply an external force to the handle to twist the bolt or nut to hold the opening or sleeve of the bolt or nut. When in use, an external force is applied to the shank in the direction of thread rotation, so that the bolt or nut can be twisted. Wrenches are basically divided into two types, dead wrench and live wrench. Dead wrench: one or both ends are made with a fixed size opening for screwing a certain size of nut or bolt. Adjustable wrench: The width of the opening can be adjusted within a certain size range, and it can screw bolts or nuts of different specifications. However, both the dead wrench and the live wrench have ce...

Claims

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Application Information

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IPC IPC(8): B25B13/56B25B23/00
Inventor 张少庆王国平张玉霞
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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