PROBLEM TO BE SOLVED: To provide an underground watering device accurately and uniformly controlling the water amount with an simple structure.SOLUTION: In this underground watering device for performing underground watering through a pressure pump, a main pipe, and a hose pipe from a water source or the like, a joint 7 is arranged in an optional section extending from the main pipe 5 to the hose pipe 9, and the joint 7 is set with a fixing nozzle 13 having a flow path of an inner diameter of &le2 mm.COPYRIGHT: (C)2010,JPO&INPIT【課題】簡易な構成で、正確かつ均等な水量制御を可能とした地中潅水装置を提供する。【解決手段】水源等から圧送ポンプ、主管及び注水管を介して地中潅水する地中潅水装置において、主管5から注水管9に至る任意の部位にジョイント7を配置し、ジョイント7には、内径が2mm以下の流路を有する固定ノズル13を設けた。【選択図】図2
