| 摘要 |
PROBLEM TO BE SOLVED: To provide a snow-melting water spray nozzle which comprises a nozzle body, a water quantity adjustment mechanism section and a water spray body provided with a plurality of water spray channels and mounted in a water sealing manner above the nozzle body, and which overcomes an obstacle (the spray of a large quantity of water from the other water spray channels) caused by the clogging of the some water spray channels and an obstacle of a sand residue in the nozzle body after the elimination of the clogging. SOLUTION: A horizontal hole 26 with a diameter as large as or larger than that of the water spray channel is drilled in a position above a water seal location of a water chamber section from a position midway through the water spray channel C; and the water spray body (ring body 2) is mounted on the nozzle body 1. In this case, a channel section B corresponding to an inside diameter of the horizontal hole is formed between an inner surface of the water chamber section of the nozzle body and an outer peripheral surface of the water spray body; and water discharge sections (a water discharge gap D and a water discharge port E) communicating with the water channel section are formed in a top surface boundary between the nozzle body and the water spray body. COPYRIGHT: (C)2011,JPO&INPIT
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