Anti-falling safety support of construction hoist

Abstract

The invention aims to provide an anti-falling safety support of a construction hoist. An inclination angle travel switch is arranged at the top end of the safety support, and by means of a method of increasing the gravity force arm of a cage and the like, a control system detects a danger signal before the running cage rises to a dangerous junction of standard joints with potential safety hazards,and a controller is triggered to act to cut off a power supply, so that the cage suddenly stops below the dangerous junction. Meanwhile, through the reverse supporting effect of the safety support, standard joints above the dangerous junction are further prevented from overturning, and the malignant safety accident that the cage and the standard joints fall off from the high altitude, and machinedamage and death happen is avoided.

Description

technical field [0001] An anti-fall safety bracket for a construction elevator relates to the field of anti-fall safety for high-altitude operations, in particular to an anti-fall safety device for an SC-type building construction elevator. Background technique [0002] SC type building construction elevator is a kind of elevator relying on rack and pinion transmission. It is commonly used in construction sites and is used for the transportation of people and goods in high-rise buildings. The lifting track of the SC type building construction hoist is composed of multiple standard sections spliced ​​together, and the standard sections are connected with four connecting bolts. When the connecting bolts on the standard section are missing, the nuts are not tightened, or the screws are slipping under abnormal conditions, when the staff drives this kind of construction elevator with potential safety hazards for operation, the standard section will break, causing the cage to fall...

AI Technical Summary

Problems solved by technology

When the cage rises to the dangerous junction higher than the standard section, the distance between the center of gravity of the cage and the standard section is the moment arm of the cage, which instantly increases several times than before, and the overall gravity of the cage produces The torque of the standard joint far exceeds the reaction torque produced by the standard joint's own gravity, which causes the standard joint to break and the construction elevator to overturn.

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