Fall-prevention safety protection device for vertical lift elevator

Abstract

The invention relates to the technical field of manufacturing of elevator equipment, and discloses a fall-prevention safety protection device for a vertical lift elevator. The fall-prevention safety protection device comprises safety hanging hook boxes and spring steel wire rope sets; the safety hanging hook boxes are fixedly arranged on two sides of a cage; and the spring steel wire rope sets are arranged on two sides of a well. A plurality of spring steel wire rope sets are arranged on two sides of the well in a vertical direction; and when the elevator overspeeds during running, electromagnets are electrified, hanging hooks in the safety hanging hook boxes are rotated out of box bodies to hook the spring steel wire rope sets which are closest to the well, and two ends of each steel wire rope are provided with springs, so that a certain buffering function can be exerted, and the personnel safety can be guaranteed. After faults are removed, the electromagnets are disconnected from a power supply, and the hooks return into the box bodies under the action of gravity of balancing weights, and the elevator can recover in short time.

Description

technical field [0001] The invention relates to the technical field of elevator equipment manufacturing, and relates to a safety protection device for preventing falling of a vertical lift elevator. technical background [0002] With the increase of high-rise buildings, the use of elevators increases thereupon. In order to ensure the safety of elevator operation, an elevator anti-fall protection device must be assembled. In the elevator equipment put into use today, the elevator fall prevention is mainly realized by devices such as speed governor, safety gear and buffer spring at the bottom of the hoistway. The speed limiter monitors and controls the speed of the car at any time. When an overspeed situation occurs, it can send a signal in time, and then generate a mechanical action to cut off the power supply circuit to brake the traction machine. If the elevator still cannot be braked, the safety gear installed at the bottom of the car will force the car to stop. The buff...

AI Technical Summary

Problems solved by technology

[0004] 2. When the elevator is installed and maintained, it is caused by unreasonable adjustment of the wire rope, sheave, brake, etc.;

[0005] 3. The elevator wire rope falls off or breaks

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