Safe lift

Abstract

The invention discloses a safe lift and relates to the technical field of lift safety. The safe lift comprises a lift car, a traction motor, a counterweight and a steel wire rope. One end of the steelwire rope is connected to the lift car, and the other end of the steel wire rope is wound around the traction motor and then is connected and fixed to the counterweight. The safe lift further comprises guide rails arranged on the wall faces on the periphery of a shaft where the lift car is located. The upper end face and the lower end face of the lift car are provided with multiple safety line devices. Each safety line device comprises a connecting safety line, wherein one end of the connecting safety line is fixed to the lift car, and the other end of the connecting safety line is fixedly provided with a rail locking device. Each rail locking device is provided with a sleeved connection open groove. Each rail locking device further comprises limiting balls arranged on a group of oppositeside walls of the corresponding sleeved connection open groove and hydraulic retreat stopping devices arranged in the direction of the other group of opposite side walls of the sleeved connection open groove. The safe lift mainly adopts the safety line devices to connect the lift car and the guide rails, the safety line devices are used for protecting the lift during stall of the lift, and the safety is higher.

Description

technical field [0001] The invention relates to the technical field of elevator safety, in particular to a safety elevator. Background technique [0002] Elevator is a kind of permanent transportation equipment that serves several specific floors in a building, and its car runs on a rigid track perpendicular to the horizontal plane. The inevitable product of it, it also has the problem of failure. [0003] There are three main types of elevator faults: one is that the elevator stops running suddenly; the other is that the elevator loses control and falls rapidly; the third is that the elevator suddenly loses control and rises rapidly. The failure of modern elevators during operation is generally caused by the sudden rupture of the wire rope that drives the elevator. After the wire rope breaks, traditional elevators generally use safety gears to clamp the hoistway guide rails, thereby fixing the elevator car and making the elevator car stop stably, thereby protecting the el...

AI Technical Summary

Problems solved by technology

[0004] The operating mechanism of the elevator safety gear is a set of linkage systems, as a mechanical structure, its response speed is relatively slow

Moreover, the safety gear has extremely high requirements for its own materials and manufacturing precision, and this is used to ensure the accuracy of the safety gear. However, the actual situation is that the safety gear will clamp the guide rail when the elevator is running normally to make the elevator stagnate. The error locking phenomenon, the probability of this phenomenon is relatively high

In addition, the safety gear is directly rigidly connected and fixed to the car. When the safety gear works, when the car stalls, it will have a huge impact on the safety gear. In severe cases, it will even directly cause the safety gear components to be deformed or destroyed. The pliers directly lose the safety locking effect

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