Mechanical type anti-fall device capable of ascending scaffold

Abstract

The invention relates to a mechanical anti-falling device used for lifting a scaffold; the anti-falling device is mounted on the scaffold and the corresponding lifting device and is composed of a compression spring, a compression spring plank, a stressed cross rod, a lever, an anti-falling pull rod and a locking mechanism which can be locked on the anti-falling pull rod; the locking mechanism is in insertion connection with the anti-falling pull rod; the compression spring plank is connected with the stressed cross rod supports the lifting device; one end of the compression spring is connected with the compression spring plank; the lever is hinged on the scaffold; one end of the lever is connected wit the locking mechanism and the other end is connected with the free end of the compression spring; when the compression spring pushes one end of the lever to rotate, the other end of the lever has pulling and supporting effect on the locking mechanism. The mechanical anti-falling device used for lifting the scaffold has the advantages that because the locking mechanism in the anti-falling device only moves upwards and is unable to move downwards, the lifting device and the scaffold can be reliably and tightly locked on the anti-falling pull rod; the locking mechanism has simple structure and convenient mounting.

Description

technical field [0001] The invention relates to construction machinery, in particular to a mechanical anti-drop device capable of lifting a scaffold. Background technique [0002] As the building continues to increase, the liftable scaffolding is synchronously raised by the lifting device. During the lifting process of the lifting scaffold, if the lifting equipment is damaged or the stressed parts of the lifting are damaged, the lifting scaffold will fall due to force loss, so there must be an anti-fall device. [0003] At present, the commonly used mechanical anti-falling device for lifting scaffolding is a utility model patent proposed by the applicant of this case on December 3, 2002 (patent number: ZL0229311.6, name: anti-falling device for hydraulic lifting scaffolding) , whose structure is as Figure 7 shown. Whole anti-falling device is installed on hydraulic jack 102 tops, and anti-falling device mainly is made up of hoisting mechanism 106, bayonet mechanism 103, c...

AI Technical Summary

Problems solved by technology

[0005] The defects of the above-mentioned anti-falling device are: firstly, because the load-bearing shaft is easily bent and deformed, it is often stuck in the cylinder 117, and the anti-falling effect is poor; Troublesome and high cost; third, the connecting rope is not a rigid body, and the transmission effect of force is not as good as that of a rigid body, thus affecting the reliability of the fall prevention device

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