Elevator car system and its automatic detection and braking device for elevator car fall

Abstract

The invention discloses an elevator car system and an elevator car falling automatic detecting and braking device thereof. The elevator car falling automatic detecting and braking device comprises speed measuring racks, brake shells, speed measuring gears, transition speed regulating gears, power generators, control circuit boards and braking assemblies. The speed measuring racks are fixed to the end faces of elevator car guide rails; the speed measuring gears, the transition speed regulating gears, the power generators, the control circuit boards and the braking assemblies are arranged in the brake shells; the speed measuring racks, the speed measuring gears, the transition speed regulating gears and the power generators are engaged in sequence; the power generators and the braking assemblies are electrically connected with the control circuit boards; and the two braking assemblies are matched with the two side surfaces of the elevator car guide rails correspondingly. By means of the elevator car system and the elevator car falling automatic detecting and braking device thereof, the operation speed of an elevator can be accurately sensed, moreover, an external power supply is not needed, and the reliability is extremely high.

Description

technical field [0001] The invention relates to an elevator car system and an elevator car fall automatic detection and braking device. Background technique [0002] With the continuous acceleration of the urbanization process, civilian elevators have become very popular, and accidents of elevator car falling have occurred from time to time. There are many safety protection technologies for the fall of the elevator car, but the accident shows that there are still reliability problems in the prior art and devices. Contents of the invention [0003] The first object of the present invention is to provide an elevator car fall automatic detection and braking device to avoid falling from a large drop. [0004] The technical solution for realizing the first purpose of the present invention is: an elevator car fall automatic detection and braking device, including a speed measuring rack, a brake housing, a speed measuring gear, a transition speed regulating gear, a generator, a ...

AI Technical Summary

Problems solved by technology

There are many safety protection technologies for elevator car falling, but the accident shows that there are still reliability problems in existing technologies and devices

Images