Ropeless vertical lifting mechanism

Abstract

The invention relates to a ropeless vertical lifting mechanism which is characterized by comprising a plurality of tubular bodies evenly and vertically arranged, lifting columns screwed inside the tubular bodies by thread, top plates arranged among the tubular bodies, motors fixed below the middle parts of the top plates, and helical gears fixedly arranged on output shafts of the motors, wherein the opposite sides among the tubular bodies are respectively provided with a side groove; the corner of the top plate is provided with an extending part which passes through the side groove to be connected at the upper end of the lifting column; the lower end of the lifting column is provided with a helical gear, and a drive rod is arranged between the helical gear and the helical gear arranged onthe output shaft of the motor; two ends of the drive rod are both provided with a helical tooth surface which is respectively meshed with the helical gears at the two ends; and the middle part of thedrive rod is connected on a connecting piece fixed at the lower end of the top plate by a bearing. The invention provides a ropeless vertical lifting mechanism which leads the elevator using ropelessvertical lifting mechanism to avoid the accidents of death of passengers caused by the breakdown of ropes, thus greatly increasing the elevator safety.

Description

technical field [0001] The invention relates to a lifting mechanism, in particular to a cordless vertical lifting mechanism. Background technique [0002] In the elevator, it is necessary to use a vertical hoisting mechanism to lift the elevator. In the existing hoisting mechanism, the structure of the steel wire rope and the hoist is usually used to lift the elevator. Such as a kind of elevator device of publication number CN1444538, a kind of elevator device of publication number CN101143676, and a kind of elevator hoist of publication number CN2103542, etc. existing patents it all adopts above-mentioned structural form, has the feature of lifting convenience. However, in the lifting mode of this structural form, in the process of elevator lifting, when there is a sudden accident of wire rope breakage, the elevator will fall along the elevator passage at a high speed, and then endanger the life safety of the occupants in the elevator. There are often reports of accidents ...

AI Technical Summary

Problems solved by technology

However, in the lifting mode of this structure, in the process of lifting the elevator, when a sudden accident occurs when the wire rope breaks, the elevator will fall along the elevator passage at a high speed, which will endanger the safety of the passengers in the elevator.

At home and abroad, there are often reports of related elevators falling due to broken ropes, resulting in the death of passengers.

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