Locking device for preventing elevator from accidentally falling

Abstract

A locking device for preventing an elevator from accidentally falling is used for safety protection for preventing the elevator from accidentally falling in the running process of the elevator and belongs to the technical field of manufacturing of auxiliary equipment for preventing the elevator from accidentally falling due to faults. The locking device comprises a gearbox and speed limiting mechanisms. Two gears which are engaged are rotationally arranged in the gearbox, and gear shafts of the gears are horizontal. Obliquely-downward connecting rods are fixedly connected to the positions, away from the engagement position, of the gears, the middle points between the two ends of the connecting rods are hinged to the tail ends of traction ropes of the speed limiting mechanisms, the ends, away from the gears, of the connecting rods are rotationally connected with sliding blocks, and the sliding blocks are connected with elevator guide rails in a sliding manner. By means of the locking device for preventing the elevator from accidentally falling, the manner that the gears are connected with the connecting rods is adopted, the elevator is prevented from falling accidentally in the manner of applying force through the connecting rods and increasing the friction force between the sliding blocks and the elevator guide rails, and the problem that an existing elevator safety anti-falling device is likely to be disturbed by external conditions due to the fact that electrical elements are adopted is solved.

Description

technical field [0001] The utility model relates to a locking device for preventing accidental falling of an elevator, which is used for the safety protection of preventing the accidental falling of the elevator during the running process of the elevator, and belongs to the technical field of safety equipment manufacturing for preventing the elevator from falling due to accidental failure. Background technique [0002] With the acceleration of urban development, whether it is family housing or commercial office buildings, there are more and more high-rise buildings, and elevators have become an indispensable part of people's lives. Or the carrier of goods transported between floors, when an accident occurs or falls, the elevator and people will accelerate and fall at almost the value of the acceleration of gravity, the momentum value is amazing, and the probability of people's survival is extremely small. Therefore, the safety factor of the elevator itself is very high. Impo...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages of the prior art by using gears to connect the connecting rods and increasing the friction between the slider and the elevator guide rails to prevent the elevator from falling unexpectedly by applying force through the connecting rods. The elevator safety anti-drop device uses electrical components, which are easily disturbed by external conditions

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