FIELD: construction.
SUBSTANCE: emergency lock device comprises a vertical flat lock, guide vertical slots and a manoeuvring mechanism. The manoeuvring mechanism comprises a lifting part arranged in the form of a lifting crane, for instance, and a retaining part with a magnetic conductor, a coil, an anchor, and also a control system and a switching device for connection of voltage from an auxiliary source of supply to the retaining part. At the same time the control system of the retaining part comprises a sensor of emergency modes, and the magnetic conductor anchor is rigidly connected to the vertical lock. The control method consists in the fact that to open an emergency lock device, a magnetic conductor of the retaining part with the help of the lifting part is lowered from the extreme upper position into the extreme lower position, and the lifting part is disconnected. Then the supply voltage is sent to a coil of the retaining part, and simultaneously current of the retaining part coil is monitored. At the same time as current increases to the maximum value, the retaining part is lifted with the lock from the extreme lower position to the extreme upper position, namely: the emergency lock device is opened. At the same time supply voltage is sent continuously to the retaining part, providing for the open condition of the emergency lock device. For its emergency closure, a signal is generated to disconnect supply voltage from the retaining part, which results in immediate movement of the lock with the magnetic conductor anchor under gravity of the retaining part along guide vertical slots from the extreme upper position into the extreme lower position.
EFFECT: increased efficiency and reliability of device operation.