| 摘要 |
PROBLEM TO BE SOLVED: To improve water sprinkling work efficiency by using a water sprinkling nozzle for snow melting, agriculture, horticulture and fire extinguishment of a building, by realizing sure water sprinkling and snow melting even after snowfall in large quantities by this water sprinkling method, by water sprinkling or stopping by the continuance of a water flow or stopping of the water flow in a water supply pipe in water sprinkling from a nozzle hole, sprinkling water to the whole azimuth around a nozzle body by sprinkling water while rotating in the water sprinkling from the nozzle hole, and realizing complete planar water sprinkling in this water sprinkling circle since the water sprinkling circle repeats the contraction and the expansion by the water sprinkling from the nozzle hole by intermittent operation or stopping of a pump. ! SOLUTION: A nozzle body N is provided with a rotary water sprinkling mechanism R for opening-closing a nozzle hole F by the continuance of a water flow Q or stop |
