a wrench

Abstract

The invention relates to a wrench. The wrench is characterized in that the wrench comprises a handle, a reversing portion and a working portion; the reversing portion is arranged in a shell, and the top of the peripheral face of the shell and the centers of end faces on the two sides are provided with through holes respectively; the reversing portion comprises a bevel gear shaft tightly attached to the inner wall of the top of the peripheral face of the shell, a first bevel gear and a second bevel gear, both the first bevel gear and the second bevel gear are mounted on the inner walls of the end faces on the two sides of the shell and meshed with the bevel gear shaft, the top of the bevel gear shaft penetrates through the through hole in the top of the peripheral face of the shell to be hinged to the handle, a gear hole of the first bevel gear and a gear hole of the second bevel gear are provided with a first one-way bearing and a second one-way bearing respectively, the first one-way bearing and the second one-way bearing are connected with the left portion and the right portion of an output shaft respectively, and one end of the output shaft is connected with the working portion. In this way, when the wrench is wrenched, two-way wrenching of hands is effective actions, and the working efficiency of the wrench is doubled.

Description

technical field [0001] The invention belongs to the technical field of hand tools, in particular to a wrench. Background technique [0002] At present, in families, factories and repair shops, the disassembly and assembly machinery is mainly disassembled by manual wrench. There are currently three types of wrenches on the market: rigid wrench, adjustable wrench, and ratchet wrench. The mechanical wrench has a simple structure and a single function, and can only be used for specific screw types. It generally appears in the market in the form of a series of sets, which is heavy and complicated to operate. ; Adjustable wrench improves the scope of application of the mechanical hand to a certain extent, but the movement cannot be carried out smoothly when disassembling and installing screws, and the work is more complicated; the ratchet wrench has the highest working efficiency. During the reciprocating motion of the wrench, half of the work done by the arm is still useless wor...

AI Technical Summary

Problems solved by technology

There are currently three types of wrenches on the market: rigid wrench, adjustable wrench, and ratchet wrench. The mechanical wrench has a simple structure and a single function, and can only be used for specific screw types. It generally appears in the market in the form of a series of sets, which is heavy and complicated to operate. ; Adjustable wrench improves the scope of application of the mechanical hand to a certain extent, but the movement cannot be carried out smoothly when disassembling and installing screws, and the work is more complicated; the ratchet wrench has the highest working efficiency. During the reciprocating motion of the wrench, half of the work done by the arm is still useless work

[0003] In general, there are two problems with wrenches on the market: 1. Due to space limitations, different sizes and models of wrenches are required, and there are many and complicated equipment; 2. The efficiency is low. During the reciprocating movement during the operation, half of the work done by the arm is still useless

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