A lifting mechanism for a lift

Abstract

The invention provides a lifting mechanism for elevators, belonging to the technical field of elevator equipment, which includes a hollow base, a ladder frame is fixedly connected to the top of the hollow base, and a sealing plate is fixedly connected to the bottom of the hollow base; a first telescopic square tube, a first The telescopic square tube is fixedly connected to the top of the hollow base, and the top of the first telescopic square tube is provided with a second jack; the telescopic platform, the telescopic platform is set in the first telescopic square tube, and the top of the telescopic platform is fixedly connected to the limit sleeve, the lifting platform The end face is connected with a safety door through the rotation of the hinge shaft. Both the first telescopic assembly and the second telescopic assembly use a screw as the power assembly during the lifting process. Through the self-locking property of the screw, it replaces the traditional hydraulic pressure or cable, reducing manufacturing production. Expenses, maintenance costs, while improving popularization and application, avoid lifting accidents caused by pressure leakage or motor power failure during the lifting process, and improve the stability of the lift.

Description

technical field [0001] The invention belongs to the technical field of elevator equipment, and in particular relates to a lifting mechanism for elevators. Background technique [0002] Elevator is defined as: a platform or semi-enclosed platform lifting machinery or device that carries people or goods up and down the vertical passageway. It is a whole composed of platforms, equipment, motors, cables and other auxiliary equipment for manipulating them. A kind of elevator equipment composed of traveling mechanism, hydraulic mechanism, electric control mechanism and supporting mechanism. The directional valve and balance valve enter the lower end of the hydraulic cylinder, so that the piston of the hydraulic cylinder moves upward to lift the heavy object. The oil returned from the upper end of the hydraulic cylinder returns to the oil tank through the explosion-proof electromagnetic reversing valve, and its rated pressure is adjusted through the overflow valve. Pressure gauge ...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing elevators use hydraulic system or cable system to lift the platform, and the hydraulic control system and cable control system with complex structures are required, which all rely on the electric control system and induction system, which have high manufacturing costs and high maintenance costs. It is not easy to popularize and apply, and at the same time, the hydraulic system or cable system is not stable enough in use, which has a high operational risk

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