Pluri functional system ensuring the automatic protection of premises entrees in the event of sudden rise of water or other fluids

摘要

A floor sump (D) beside the entry contains three float detectors and a pump (19). If water enters, one detector (A) raises a spring-operated (11) deflector (12), a second (B) releases the barrier gate (13) and a third (C) lights emergency lamps, sounds an alarm and starts the pump (19). The gate casing is first raised hydraulically (14). This allows spring actuators (15) to swing the hinged gate across the entry. The sides and foot of the gate are provided with 2cm thick foam seals mounted on pressure plates. A catch operated when the gate is fully closed releases another actuator connected to a central plate. The rotation of the plate brings pressure to bear, through 5 sets of linkages, on all the edge seals, preventing any seepage.