| 摘要 |
PROBLEM TO BE SOLVED: To provide sprinkler firefighting equipment in which a change in dynamic pressure and static pressure in water pipe and a sprinkler head can easily be viewed and discriminated in detail from under a ceiling. SOLUTION: The sprinkler head 1 to be charged with a fluid is provided with branch means 11 and 12 communicating with its water path, and pressure exciting light-emitting bodies 13 and 14 whose light intensity is varied with the pressure change in the fluid are fitted to the branch means 11 and 12 in the state of being exposed from the lower surface of the ceiling. In this case, as the pressure exciting light-emitting bodies 13 and 14, at least either a stress exciting light-emitting bodies 13 for measuring the dynamic pressure of the fluid or a light exciting light-emitting bodies 14 for measuring the static pressure. COPYRIGHT: (C)2006,JPO&NCIPI
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