Multifunctional automatic wrench

Abstract

The invention provides a multifunctional automatic wrench. The multifunctional automatic wrench mainly comprises a wrench head, a lower jaw, a handle and a rapid driving mechanism; the lower jaw is connected with a leaf chain, a first spring is placed in a wrench-head sliding way, the leaf chain is connected with an overrun clutch outer ring, a second spring is placed in a wrench-head check blockcontaining groove, a main shaft and a check block are inserted into an overrun clutch inner ring and the wrench-head check block containing groove together, the main shaft and the overrun clutch innerring are fixed through a snap spring, and two ends of a torsion spring are fixed on the main shaft and the overrun clutch inner ring correspondingly. The wrench is simple and compact in structure andreliable in principle, the leaf chain and an overrunning clutch are used in cooperation, adjustment of the lower jaw is automatically achieved, and a traditional driving mode is changed; and the operation is convenient, a nut can be rapidly tightened or detached, time and labor are saved, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of maintenance tools, and in particular relates to a multifunctional automatic wrench. Background technique [0002] As an indispensable tool in the equipment maintenance and processing and assembly industry, the wrench uses the principle of leverage to twist bolts, screws, nuts, etc. It is a common tool in factories and a spare tool in modern families. The wrench is usually made with a clamping handle at one or both ends of the handle. When in use, an external force is applied to the handle along the thread rotation direction to twist various bolts. Common wrench hardware tools can be roughly divided into socket wrenches, open-end wrenches, adjustable wrenches, ring wrenches and other types. Each type usually has its specific use occasions, among which open-end wrenches and adjustable wrenches are more versatile. The advantage of the adjustable wrench is that the opening width can be adjusted to a certain ...

AI Technical Summary

Problems solved by technology

[0003] However, the existing adjustable wrench is slow to adjust the width of the opening. Usually, the opening and closing of the jaw is completely realized by constantly rubbing the worm screw thread with the thumb, and the twisting process is slow, laborious, time-consuming, and low in work efficiency; Adjustment, limited by the operating space, inconvenient storage and carrying, and limited clamping range; therefore, it is necessary to develop and design to improve its structure and function

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