Chain block

Abstract

The invention discloses a chain hoist, belonging to the technical field of hoisting device design, comprising an upper hook, an upper spring buckle, a chain wheel box, a chain, a lower hook, a lower spring buckle, and the upper hook is fixed on the chain wheel box At the top, the whole device can be suspended on the workshop truss by the upper hook, the sprocket is installed inside the sprocket box, the sprocket shaft is supported on the box body of the sprocket box, and the chain goes around the sprocket in the inner cavity of the sprocket box. The bottom of the chain is fixed with a lower hook. When lifting a heavy object, the lower hook hooks the heavy object, and the heavy object can be lifted to the desired position by pulling the chain. The chain hoist disclosed by the invention has a simple structure and is easy to operate , low cost, good safety, the sprocket will not reverse, the hook is equipped with a spring buckle, and the spring buckle is equipped with a scroll spring, and the heavy object is not easy to fall during transportation. The hook is forged with heat treatment. Structure, high strength, strong bearing capacity and long service life.

Description

technical field [0001] The invention relates to the technical field of hoisting device design, in particular to a chain hoist. Background technique [0002] In the mechanical industry and daily life, we often need to carry out heavy objects in a certain range. In some cases, because the weight of the heavy objects is too large, the traditional manual method will cause the labor intensity of the workers and the handling efficiency is low. Previously Due to defects in the structural design of the heavy object lifting device used, there is no special braking device, which leads to the need to manually pull the chain to prevent the sprocket from reversing during the transportation of the heavy object. The labor intensity of the workers is high, the operation is troublesome, and the efficiency Low, and sometimes it may even drop suddenly during the transportation of heavy objects, causing major safety problems, so design a simple structure, convenient operation, low cost, good sa...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of heavy labor intensity, cumbersome operation, low efficiency and poor safety of workers in

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