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Hydraulic control valve for drip hoses

US-7455071-B2

Abstract

The object of this invention is to provide a hydraulic control valve for drip hoses, which controls a flow of water according to a water pressure, thus keeping a pressure of Water fed to a drip hose constant. The hydraulic control valve includes a hose connector ( 110 ) clamped at opposite ends thereof to a branch hose (H/S) and a drip hose (H/N), a water supply path having a larger-diameter path ( 120 a ) and a smaller-diameter path ( 120 b ), a U-shaped flexible cup ( 200 ), and a support ring ( 300 ). The Larger-diameter path includes a stepped seat ( 142 ) having projections ( 141 ) and depressions ( 142 ). The smaller-diameter path includes an inward projecting step ( 150 ). The cup is placed at an end thereof to be near to the inward projecting step, and includes a flange ( 210 ). The support ring ( 300 ) is fitted into the larger-diameter path to prevent a removal of the cup.

Patent figures（8）

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Source status & events

No source-status events are recorded.

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