Patent ID: 11413485

Abstract:
A sprinkler head includes a main body, a valve element, a heat-sensitive disassembling unit, a deflector, at least one strut, and a guide ring. The body includes a nozzle from which fire-extinguishing liquid is discharged. The disassembling unit keeps the nozzle closed with the valve element and opens the nozzle through a breakdown action during activation. The deflector has a receiving surface (valve-element supporting portion) and vanes extending from the receiving surface toward the body. The deflector scatters, outward in axis crossing directions of the nozzle, the fire-extinguishing liquid discharged from the nozzle and received by the receiving surface. The least one strut holds the deflector scattering the fire-extinguishing liquid. The guide ring is movable along the at least one strut and between a tip (main-body-side end portion) of the at least one strut and tips of the vanes.