NOZZLE CONNECTING ADAPTER AND SPRAY MEASUREMENT DEVICE OF WATER SPRAY APPARATUS IN TUNNEL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a nozzle connecting adapter capable of preventing water leakage by simply and stably connecting an intake hose to a water spray nozzle; and to provide a spray measurement device of a water spray apparatus in a tunnel, capable of further accurately measuring the spray using the same.

SOLUTION: The spray measurement device of the water spray apparatus in a tunnel includes a flow rate finder for measuring the flow rate of the spray water, and the intake hose. The nozzle connecting adapter (21) to be attached to one end of the intake hose includes: an adapter body (22) having a connecting port (220) to be connected to the water spray nozzle (32); and a connecting fixture (23) attached to the side of the connecting port (220) of the adapter body (22). The connecting fixture (23) can be fixed to the water spray nozzle (32) to be connected to the connecting port (220), and the connecting fixture (23) is formed with nozzle engaging portions (234 and 234a) that are adapted to be engaged with an engaging element (a step part) (322) of the water spray nozzle (32) when the connecting fixture (23) is fixed to the water spray nozzle (32).

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