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High-strength nut wrench

A high-strength nut and wrench technology, applied to wrenches, screwdrivers, manufacturing tools, etc., can solve problems such as inability to generate torque, and achieve the effect of increasing the scope of application

Inactive Publication Date: 2014-07-02
CHONGQING KEZHONG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a high-strength nut wrench to solve the problem in the prior art that the design of the ratchet and the ratchet cannot generate sufficient torque

Method used

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Examples

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Embodiment Construction

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0020] Such as figure 1 As shown, it is a half-sectional view of the device of the present invention, including a ratchet body 1 and a lever 8, the ratchet body 1 is arranged on the head of the lever 8, a ratchet 2 is arranged in the ratchet body 1, and the edge of the ratchet 2 is arranged There are gear teeth 4, tooth grooves 3 are formed between the adjacent gear teeth 4, the through hole in the middle of the ratchet 2 is a square through hole, the tooth groove 3 is fitted with the top end of the ratchet 5, the The other end of the ratchet 5 is connected to one end of the spring 6 , and the other end of the spring 6 is connected to the adjusting screw 7 .

[0021] figure 2 It is a top view of the device of the...

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Abstract

The invention relates to a manual tool, in particular to a high-strength nut wrench. The high-strength nut wrench comprises a ratchet wheel body and a wrench rod, the ratchet wheel body is arranged on the head of the wrench rod, a ratchet wheel is arranged in the ratchet wheel body and provided with teeth at the rim, tooth sockets are formed between the adjacent teeth, a middle through hole of the ratchet wheel is a square through hole, the tooth sockets are nested with one end of the top end of a pawl, the other end of the pawl is connected with one end of a spring, and the other end of the spring is connected with an adjusting screw. By the aid of projections and combination of the ratchet wheel and the tooth sockets nested with the projections on the pawl and by the aid of the spring connected with the other end of the pawl, unidirectional twisting can be realized. That is, the wrench rod is rotated along one direction and is rotated in the other direction without driving a workpiece to rotate together. Due to the design of acute projection, the pawl can bear high strength without damage, the problem that the nut wrench cannot generate sufficient torsion in the prior art is solved, and application range of the nut wrench is enlarged.

Description

technical field [0001] The invention relates to a hand tool, in particular to a high-strength nut wrench. Background technique [0002] A wrench is a tool widely used in people's production and life at present. In the prior art, a nut wrench is generally composed of a wrench and a ratchet body arranged at the head of the wrench. However, due to the design problems of the ratchet and the ratchet, in actual situations, sufficient torque cannot be generated to meet the fastening requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-strength nut wrench to solve the problem in the prior art that the design of the pawl and the ratchet cannot generate sufficient torque. [0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a high-strength nut wrench, comprising a ratchet body and a lever, the ratchet body is arranged on the head of the lev...

Claims

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Application Information

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IPC IPC(8): B25B13/48B25B23/00
CPCB25B13/465
Inventor 陈勇
Owner CHONGQING KEZHONG MACHINERY
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