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Method for quickly tightening and dismounting bolt nut and adjustable wrench achieving same

A technology for dismantling bolts, bolts and nuts. It is applied in the direction of wrenches, screwdrivers, manufacturing tools, etc. It can solve the problems of reduced work efficiency, increased and shortened working empty travel of wrenches, etc., to improve fastening and disassembly efficiency, carry weight and purchase The effect of cost reduction

Active Publication Date: 2013-08-14
中国人民解放军69080部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a structure basically does not change the current situation that the two parallel opposite sides of the bolt and nut are stressed, and the length of the two jaws is relatively shortened, and the bolt and nut are easy to slip off; the double groove structure also increases the working idle stroke of the wrench, and the working Reduced efficiency

Method used

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  • Method for quickly tightening and dismounting bolt nut and adjustable wrench achieving same
  • Method for quickly tightening and dismounting bolt nut and adjustable wrench achieving same

Examples

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Embodiment Construction

[0027] The movable wrench of the present invention has at least one pair of V-shaped grooves 2 on the jaw formed by the movable jaw 1 and the fixed jaw 3, and the structure of the rest is the same as that of the existing movable wrench.

[0028] Now take the improvement of an adjustable wrench with a total length of 250 millimeters as an example to illustrate.

[0029] as attached figure 1 As shown, the adjustable wrench of the present invention has a V-shaped groove 2 with an included angle of 120° and a depth of 3 mm on the movable jaw 1 and the fixed jaw 3 respectively. When the screw rod is adjusted to make the two jaws contact, the two V-shaped grooves form a regular rhombus groove with a side length of 6 mm, and the top of the rhombus is 3 mm from the top of the adjustable wrench. The included angle α approximates the angle at which the center plane of the wrench handle is inclined to the end face of the bolt and nut when tightening and removing the bolt and nut. attac...

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Abstract

The invention relates to a method for quickly tightening and dismounting a bolt nut and an adjustable wrench achieving the same. The method for quickly tightening and dismounting the bolt nut comprises the following steps of clamping and holding symmetrical side ridges of the bolt nut through two V-shaped grooves and then turning the clamped bolt nut. The adjustable wrench achieving the method comprises a fixed jaw clamp and a movable jaw clamp, wherein the inner sides of two jaw opening faces are provided with the V-shaped grooves, and the size of a clamp opening formed by the two jaw clamp is adjusted through the movable jaw clamp linked by an adjusting screw rod in an accommodating groove. By adopting the method for quickly tightening and dismounting the bolt nut and the adjustable wrench, the clamped bolt nut does not easily slip, stressed nut corners are not easily abraded to be rounded corners, and accordingly deformation and damage are not caused. The bolt nut tightening and dismounting efficiency is improved by continuously turning the wrench. The flexible characteristic of continuous adjustment of the opening of the adjustable wrench is kept, the adjustable wrench can take the place of a double offset ring spanner and an open end wrench under the condition that a surrounding space of the bolt nut is allowable, and the number, the weight and the procurement cost of tools required to be carried are reduced remarkably.

Description

technical field [0001] The invention relates to a method for fastening and dismounting bolts and nuts, comprising the steps of clamping the bolts and nuts and rotating the bolts and nuts. [0002] The invention also relates to an adjustable wrench for fastening and dismounting bolts and nuts. One end of the handle of the adjustable wrench is formed with a head, and one end of the head extends with a fixed jaw. A movable jaw is arranged in the chute, and the movable jaw is adjusted by the adjustment screw in the accommodation groove to adjust the jaw size of the two jaws. Background technique [0003] Open-ended wrench tools such as open-end wrenches and adjustable wrenches all use the jaw surfaces of the two jaws to clamp the two parallel opposite sides of the turning bolts and nuts to tighten and disassemble the bolts and nuts. [0004] When the jaws of the two jaws hold the two parallel opposite sides of the bolt and nut for fastening and disassembly, because the mouth wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/16B25B23/00
Inventor 徐云曾凡哲赵承进李旭宋秀伟白晓强武晓江
Owner 中国人民解放军69080部队
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