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1. 发明专利

JPH1147642A LIQUID SCATTERING METHOD AND LIQUID SCATTERING DEVICE 失效
公开(公告)号：JPH1147642A
公开(公告)日：1999-02-23
申请号：JP20665297
申请日：1997-07-31
申请人： EIWA SPRINKLER KK
发明人： HORIE KOYU , NAKAGI MIKIO , HIGO ATSUSHI
IPC分类号： A01G25/02 , B05B3/18
摘要： PROBLEM TO BE SOLVED: To enable changing liquid scattering height, a scattering position and a scattering range by moving a nozzle forwards and backwards by pressure of jetted liquid. SOLUTION: A fixed pipe 1 communicates with a liquid feeding port 2 at the intermediate part thereof and communicates with a liquid discharge port 4 on the base end side thereof. In the fixed pipe 1, a moving pipe 5 moved forwards and backwards for liquidtightly defining a tip side chamber 6 communicating with the liquid feeding port 2 and a base end side chamber 7 communicating with the liquid discharge port 4 is fitted. The moving pipe 5 is provided with a nozzle 17 for jetting liquid that has flowed in from a flow port 8 of the moving pipe 5 at a tip thereof projecting from the tip opening of the fixed pipe 1. The tip side chamber 6 and the base end side chamber 7 of the fixed pipe 1 are made to communicate with each other by orifices 12, 13, and the base end side chamber 7 is made to communicate with inside the moving pipe 5 through the orifice 12 and a check valve 15. A differential pressure response valve 22 for opening the liquid discharge port 4 when liquid pressure in the tip side chamber 6 of the fixed pipe 1 becomes higher than that in the base end side chamber 7 is provided. While liquid is jetted from the nozzle 17 provided on the moving pipe 5 through the flow port 8 of the moving pipe 5, the moving pipe 5 is moved forwards and backwards.

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