Falling protection device of hoisting mechanism

Abstract

The invention discloses a falling protection device of a hoisting mechanism, comprising a fixing device, a safety push rod, a spacing ring and a tension spring, wherein the fixing device is vertically and fixedly connected to a base of the hoisting mechanism, the safety push rod horizontally penetrates through a guide hole of the fixing device, the spacing ring is fixedly connected with the right end of the safety push rod, the tension spring is arranged between the fixing device and the spacing ring and is sleeved on the safety push rod in a clearance way, and a traction steel rope horizontally penetrates through a positive stop device arranged at the right side of the spacing ring and is fixedly connected with the right end of the spacing ring. For adopting the falling protection device of the hoisting mechanism with simple structure, when the traction steel rope is lossened and broken, by utilizing the loss of the traction force, the tension spring externally applies the bite force to a clamping device through the safety push rod, and therefore, the hoisting mechanism can be more rapid, reliable and safe to lock a lifting guide rail to ensure that the hoisting mechanism can not fall.

Description

technical field [0001] The present invention relates to a lifting mechanism, and more particularly to a lifting mechanism fall protection device. Background technique [0002] The main function of the lifting mechanism is to send materials or equipment from a low place to a high place or from a high place to a low place. It has the advantages of simple structure, convenient installation, removal and use. In order to ensure the safety of the lifting mechanism in practical applications, people have studied a variety of broken rope protection devices, and now the wedge type broken rope protection device is generally used. Its main structure includes a movable wedge and a fixed wedge. The hanging basket can slide relative to each other along the slope, the hanging basket is connected with one of the wedges, and the other wedge clamps the guide rail, the lifting power is used to hang the hanging basket through the load-bearing steel rope, and the hanging basket moves vertical...

AI Technical Summary

Problems solved by technology

[0003] But the above-mentioned broken rope protection device has the following disadvantages: 1. When the relative sliding between the two wedges produces corrosion, the action sensitivity of the broken rope protection device is reduced, and the falling braking distance exceeds the scope stipulated by the state, which affects the safety of the lifting mechanism structure 2. The use mechanism has certain requirements for the installation environment, and it cannot be flexibly used on relatively simple and heavy lifting mechanisms

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