Electric wrench

Abstract

An electric wrench comprises a casing, a power component, a ratchet mechanism, a supporting transmission module and an open gear. A mounting part is formed at one end of the casing. The power component, the ratchet mechanism, the supporting transmission module and the open gear are sequentially connected and accommodated in the casing, a threaded part penetrates the mounting part to reach the open gear, the supporting transmission module is connected with the open gear and drives the open gear to rotate, and accordingly the threaded part is tightened or unscrewed. The electric wrench can be used conveniently under the conditions that some bolts are too long, pipe nuts are screwed or an operating space is narrow, the ratchet mechanism serves as a reversing transmission mechanism, and power is provided by a motor. In the use process, operators only need to place the threaded part in a sleeve of the open gear and then start the power jaw wrench, the threaded part can be tightened or unscrewed on the conditions that the casing does not need rotating, and the electric wrench is simple and convenient to operate, small in working strength and high in working efficiency.

Description

technical field [0001] The invention relates to an electric tool, in particular to an electric wrench. Background technique [0002] Wrenches are widely used in daily life, and they are usually used to tighten or loosen screws and nuts. Commonly used wrenches include open-end wrenches and ratchet wrenches. Generally, the open-end wrench can put the threaded part into the side opening of the wrench, but in the tightening or loosening operation, after turning the threaded part by a small corner, the wrench needs to be removed from the threaded part, and then Put the wrench on the threaded part at another angle to continue turning. This process is usually repeated several times until the threaded part is completely tightened or loosened. Therefore, it is inconvenient to operate, and the open-end wrench is generally not suitable for use in some narrow spaces. The jaw of the ratchet wrench is usually a closed structure, so to tighten or loosen the threaded part, the ratchet wre...

AI Technical Summary

Problems solved by technology

Generally, the open-end wrench can put the threaded part into the side opening of the wrench, but in the tightening or loosening operation, after turning the threaded part by a small corner, the wrench needs to be removed from the threaded part, and then Put the wrench on the threaded part at another angle to continue turning. This process is usually repeated several times until the threaded part is completely tightened or loosened, so the operation is inconvenient, and the open-end wrench is generally not suitable for use in some narrow spaces

The jaw of the ratchet wrench is usually a closed structure, so to tighten or loosen the threaded part, the ratchet wrench needs to cover the threaded part from the upper or lower part of the threaded part, which is inconvenient to use

In order to improve work efficiency and ease of use, some electric wrenches have appeared on the market. However, the working heads of these electric wrenches are usually closed structures, so they can usually only be used when the bolts are short.

In the car maintenance or home improvement industry, there are many cases where the bolts are too long. The existing electric wrench must be used with a long sleeve, which reduces the convenience of use.

In addition, it is more inconvenient for ordinary electric wrench to fit nuts with tubular objects (such as water pipes, oil pipes), and it is even impossible to use ordinary electric wrench for operation

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