PROBLEM TO BE SOLVED: To provide a hydrant for an open channel that makes a structure of a float and the entire hydrant simple and can realize a secure activation and reduction of a cost.SOLUTION: A hydrant 1 for an open channel comprises feed water stopping means for stopping feed water by detecting a preset water level and bringing a valve body of valve main body part into contact with a valve seat in response only to rising of a float out of rising and falling of the float 20, in which the feed water stopping means stops feed water by utilizing conversion of power that raises the float with rising of a water level into a rotary motion.SELECTED DRAWING: Figure 9COPYRIGHT: (C)2016,JPO&INPIT【課題】フロートと給水栓本体の構造を単純にし、確実な作動と低コスト化を実現できる開水路用給水栓を提供する。【解決手段】フロート20の上昇および下降のうち前記フロートの上昇のみに応じて、予め設定された水位を検知して弁本体部の弁体が弁座に当接することにより給水を停止させる給水停止手段を備えた開水路用給水栓1であって、前記給水停止手段は、水位の上昇に伴い前記フロートが上昇する動力を、回転運動に変換することを利用して、給水を停止させる。【選択図】図9
