SPRINKLER Russian patent published in 2005 - IPC

FIELD: fire-fighting, particularly for spraying liquid during fire extinguishment.

SUBSTANCE: sprinkler comprises body with orifice, valve, heat-sensitive member, deflector, thrust means, stop screw and breaking device for thrust means rupturing. Thrust means is formed of posts located symmetrically relative body axis and arranged between upper and lower supports. Heat-sensitive member is made as U-shaped plate of shape-memory material. Breaking device for breaking-down posts is provided with means for tipping over lower support having hinged connection means to connect lower support to stop screw and to perform axial rotation about the screw. Means for tipping over lower support has outside bracket extending transversely to axis of the posts. The plate has one end fixedly connected to deflector periphery from outer side thereof and another end bent around deflector periphery. Plate ends are symmetrically located under lower plate bracket so that a gap is formed in-between.

EFFECT: increased operational reliability.

3 dwg