An automatic decoupling device for the anti-drop test of lifting scaffolding

Abstract

An automatic unhooking device for a lifting scaffold anti-falling test comprises an oil cylinder (1), an oil cylinder fixing base (26), hook body assemblies (28), detachable lifting hooks (25), roller assembles (27), U-shaped movable push plate assemblies (29), steel wire rope assemblies (30) and hook connecting plates (22). According to the automatic unhooking device for the lifting scaffold anti-falling test, the multiple lifting hooks can be automatically opened with hydraulic pressure as power in the anti-falling test, the automatic unhooking device is good in synchronization performance, safe, reliable, high in efficiency, low in labor intensity, high in test accuracy and capable of solving the problems that because unhooking is performed manually in multiple positions in a lifting scaffold anti-falling test, unhooking cannot be performed synchronously and the hooks cannot be opened or are difficult to open. The roller assemblies are adopted, so that opening resistance is reduced; electromagnetic valves are controlled to be powered on or off through a remote button so that a scaffold can be automatically unhooked with small force and can be effectively prevented from falling by accident, and thus convenient, fast, safe and automatic unhooking is achieved.

Description

technical field [0001] The invention relates to an automatic decoupling device for an anti-drop test of a lifting scaffold. Background technique [0002] In order to be used safely, the lifting scaffold must be equipped with a fall prevention device during operation, and it can only be put into practical use if it passes a strict drop prevention test. In the anti-drop test process of electric lifting scaffolding, a decoupling device must be installed on the hook of each electric hoist, and the scaffold is raised to a certain height. moving distance. In the past, manual decoupling was used, which had certain high strength and high risk, and the synchronization of decoupling was poor, and sometimes the hook could not be opened. In order to solve this problem, the electromagnet adsorption method can usually be used to disengage the hook from the frame, but there are various problems and deficiencies. The electromagnetic automatic decoupling device has insufficient electromagn...

AI Technical Summary

Problems solved by technology

In the past, manual uncoupling was used, which had certain high strength and high risk, and the decoupling synchronization was poor, and sometimes the hook could not be opened.

In order to solve this problem, the electromagnet adsorption method can usually be used to disengage the hook from the frame, but there are various problems and deficiencies. The electromagnetic automatic decoupling device has insufficient electromagnet initial attraction force. When the load is too large It may cause the device to malfunction and pose a safety hazard

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