| 摘要 |
PURPOSE: A fire fighting nozzle is provided to discharge fire fighting water into a sandwich panel by penetrating an iron plate of the sandwich panel, and besides, to protect a fireman not only from the heat caused by fire, but also from the excessive pressure of fire fighting water applied to the nozzle. CONSTITUTION: The fire fighting nozzle(10) includes; a rear nozzle(30) having an inlet(31) into which fire fighting water comes, and a water discharging grip(34) on its front; and a front nozzle(20) arranged in the front of the rear nozzle(30) and threaded-connected therewith; wherein a rubber packing(44) is arranged on a body of the rear nozzle(30) in a back and forth movable manner by pressure of the water, and supported elastically by a spring(43) onto a fixing rod(42), and the fixing rod(42) is fixed in the center of a protection cap(40) threaded-connected to the rear of the rear nozzle(30); and wherein a head(21) is arranged in the front of the front nozzle(20) and comprises a sharp end, besides a front(22) and a side water discharging outlet(23).
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