Anti-stall falling device for electric power rush-repair lift truck

Abstract

The invention relates to the technical field of lift truck safety and discloses an anti-stall falling device for an electric power rush-repair lift truck. The anti-stall falling device comprises an anti-stall falling device main body; a placement groove is formed in the inner wall of a fixed disc; speed reduction blocks are movably mounted in the placement groove; springs are fixedly connected tothe inner wall of the placement groove; a rotating disc is movably mounted in the fixed disc; telescopic rods are fixedly mounted on the outer wall of the rotating disc; and stop levers are fixedly mounted on the outer wall of the rotating disc. The telescopic rods are jacked up through oil in the rotating disc, when driving blocks on a connecting rope drive the rotating disc to rotate, the extending telescopic rods can abut against the speed reduction blocks in the replacement groove to rotate, and therefore the stop levers on the rotating disc can slide over the outer wall of the speed reduction blocks in an attached mode; the ascending and descending speed of the connecting ropes is reduced by means of friction force of the stop levers and the speed reduction blocks, and the effect of decelerating and buffering in the ascending and descending process of the lift truck is achieved.

Description

technical field [0001] The invention relates to the technical field of lift vehicle safety, in particular to a stall and fall prevention device for electric emergency repair lift vehicles. Background technique [0002] The lifting platform truck is a lifting mechanical equipment used for high-altitude operation and maintenance. The product has the characteristics of stable structure, flexible movement, stable lifting, convenient operation, and large load capacity, which provides convenience for high-altitude operations. In order to ensure the life safety of the operator, the lifting platform truck inevitably needs to be equipped with an anti-stall and fall device. [0003] Although the current anti-stall and fall devices for lift cars can achieve the effect of restricting the movement of the lift car, there is a problem that the lift car cannot decelerate and buffer when the lift car rises and falls back, and it cannot automatically activate the anti-stall and fall device. ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an anti-stall and fall device for an electric emergency repair lift car, which is equipped with a forced deceleration buffer for the lift car in the process of rising and falling, so as to ensure that the operator will not be injured due to the acceleration of gravity. Adverse effects and automatic activation of the anti-stall and fall device after the end of the ascent process, reducing the advantages of human operation, and solving the problems that the lift car cannot decelerate and buffer during the ascent and fall process and cannot automatically activate the anti-stall and fall device

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