A fast short-circuit system and short-circuit method for elevator door locks

Abstract

The invention provides an elevator door lock quick shorting system and method. The elevator door lock quick shorting system comprises a first series circuit and a second series circuit, wherein the first series circuit is formed by a normal operation socket, a car door lock and a landing door lock; the second series circuit is formed by a control cabinet emergency operation switch and a quick shorting socket; the second series circuit is in parallel connection with the first series circuit. When the door lock works normally, a shorting connector is inserted on the normal operation socket, the first series circuit is connected, and an elevator works normally. When any door lock breaks down, the first series circuit is disconnected, the control cabinet emergency operation switch is pulled to an overhaul gear, the shorting connector on the normal operation socket is detached to be installed on the quick shorting socket, the second series circuit is connected, an upgoing button or a downgoing button is pressed, and the elevator moves in an overhaul state to the door area to allow people taking the elevator to go out. The elevator door lock quick shorting system and method is simple in structure and principle, can reduce danger in shearing maintenance personnel caused by sudden starting of the elevator after the elevator is overhauled, and wins precious time for emergent rescue.

Description

technical field [0001] The invention relates to the field of elevators, in particular to an elevator door lock quick short-circuit system and a short-circuit method. Background technique [0002] With the development of China's urbanization, there are many high-rise buildings, and the number of elevators has also increased sharply. The safety of elevators has become one of the focuses of people's attention. In recent years, elevator accidents have occurred frequently, many of which are related to the door lock system of the elevator. [0003] At present, the elevator door lock safety system connects the car door lock and hall door lock circuit in series as a detection signal to the main control board. When any door lock fails, the system reports the corresponding door lock fault code. In the event of an emergency rescue, the elevator needs to be inspected and run. The elevator operator often has a method: connect a short wire in parallel at both ends of the series circuit f...

AI Technical Summary

Problems solved by technology

[0004] However, for some improper operations, the elevator will automatically level the floor without turning the emergency electric operation switch to the maintenance state before short-circuiting the door lock, which may cause the danger of shearing to personnel; there are also maintenance personnel checking the elevator door lock. After the completion, forget to remove the short wire, turn the inspection switch to normal, the elevator can run normally, but the door locks of the elevator do not work, this situation poses a serious threat to the life and property of passengers

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