Anti-falling elevator and method for preventing elevator from falling

Abstract

The invention relates to an anti-fall elevator, which includes a car, a fixed track and a rope end device, and is characterized in that: an anti-fall system is set on the car; a ratchet guide rail is set on the fixed track, and along the The length direction of the fixed track extends, and the side of the ratchet guide rail facing the installation space has a plurality of ratchet teeth arranged at intervals, and the ratchet teeth extend along the upper side of the ratchet guide rail; a rope head device is arranged on the car bridge When the rope head device produces force on the anti-fall system, the fall arrest system does not contact the ratchet track; when the rope head device does not produce force on the guide rod, the anti-fall system The drop system snaps onto the ratchets of the ratchet track. The invention also provides a method for preventing the elevator from falling. Therefore, the anti-fall system of the present invention is a purely mechanical structure, and does not need to control the movement of each unit through control signals during the anti-fall process, which improves the reliability and stability of the entire system.

Description

technical field [0001] The invention relates to an elevator, in particular to an anti-fall elevator and a method for preventing the elevator from falling. Background technique [0002] With the rapid development of elevator technology, the building height of skyscrapers is getting higher and higher, and because of this, the application range of elevators is becoming wider and wider, playing an increasingly indispensable role in our daily life. However, the widening of the elevator installation range and the increase in the frequency of use have all increased the probability of safety accidents, and the consequences usually cause serious passenger casualties and property losses. We should not ignore it. Therefore, major elevator manufacturers have invested huge research and development efforts and a large amount of funds in ensuring the safety of elevators, and ensured the safe operation of elevators through mechanical and electrical control. Chinese patent CN201410034390 d...

AI Technical Summary

Problems solved by technology

The elevator anti-fall protection device with the above structure is not stable because the control signals of each link are electrical signals, so the stability of the whole system is not high, and it is easily affected by other factors. Once the control signal is interfered by other electrical signals, the telescopic motor cannot work normally. , the fixed rod cannot be pushed to the track, which will cause the failure of the entire elevator fall protection device, and the consequences will be disastrous

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