Lifting appliance

Abstract

The invention relates to a lifting appliance, which comprises a blocking device, a first lifting hook and a flexible traction device, wherein one end of the blocking device is hinged with the first lifting hook, and the other end of the blocking device is connected with the inner side of the opening end of the first lifting hook; the flexible traction device is connected with the blocking device and drags the blocking device along the direction of the inner side of the first lifting hook; the blocking device is stretched towards the inner side of the first lifting hook by the flexible traction device to offset the tensile force of an elastic position restorating device, and the blocking device is pulled out of the inner side of the first lifting hook to form a space in which a rope is sleeved, so that hooking and hook take-up are implemented; and the blocking device can be operated remotely by the flexible traction device, so the cost is low, and operating personnel are not needed to perform manual operation by climbing nearby the first lifting hook during operation. Therefore, the lifting appliance is convenient to operate and high in efficiency, and reduces potential safety hazards of the operating personnel due to overhead operation.

Description

technical field [0001] The invention relates to a sling, in particular to a sling for working at heights above 10m. Background technique [0002] Hoisting machinery is a mechanical equipment that works in an intermittent cycle and completes the transportation and hoisting of heavy objects through the four major mechanisms of lifting, luffing, turning, and walking. The spreader is an indispensable and necessary part of the hoisting machinery. Its work The content is to hang the steel wire rope that binds the heavy objects to lift the heavy objects. The most commonly used sling is the hook, which is a sling with a hook-shaped end. The end that can be inserted into the cable is the open end of the hook. [0003] In order to prevent the rope that binds the heavy object from falling off the hook during the lifting process, there is usually an elastic and resettable blocking device on the hook. The blocking device is integrated with the open hook in a natural state. Forming a cl...

AI Technical Summary

Problems solved by technology

[0004] But it has the following deficiencies: when realizing the hook and taking the hook, that is, when the rope is hung from the outside of the hook or the rope is taken out of the inside of the hook, it is necessary to manually assist the blocking device to be pressed away from the hook to form a rope for use. The rope can only be detached from the hook after there is a moving space. Usually, the operator needs to climb to the vicinity of the hook for manual operation, which takes a long time and has low safety

[0005] Especially for the hooks that work at heights above 10m from the ground, if the operator needs to climb to the vicinity of the hook for manual operation every time the hook is hooked and removed, not only the risk factor is high, but also the labor intensity is high and the operation efficiency is low.

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