HYDRAULIC SYSTEM OF LOCK CONTROL Russian patent published in 2013 - IPC G21F7/05 

FIELD: power engineering.

SUBSTANCE: system of lock control comprises facilities for locking of an opposite door, opening of pressure balancing valve, unsealing of a door and opening of a door. Each facility is made in the form of a hydraulic cylinder, the stem of which is mechanically connected with the lock and with the stem of the end valve communicated with a discharge pipeline and hydraulically connected via a throttle with the end valve communicated with a drainage pipeline. Pipelines are functionally mutually replaceable, communicated with atmosphere and connected to a source of compressed air supply via appropriate electromagnet valves, an electric hydraulic distributor and a hydraulic pump with a pneumatic drive, connected with a tank with working fluid via the electromagnetic valve. The hydraulic cylinder of opposite door locking is mechanically connected to the end valve serially connected to the hydraulic cylinder of pressure balancing valve opening, mechanically connected to the end valve, serially connected with the hydraulic cylinder of door unsealing, mechanically connected to the end valve serially connected to the hydraulic cylinder of door opening. The system is additionally equipped with two elements of manual mode control for tight and untight zones.

EFFECT: invention makes it possible to ensure reliability of system operation under effect of dynamic loads and in case of power supply loss.

3 cl, 1 dwg