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CHECK VALVE AND SIPHON DRAINAGE SYSTEM
PROBLEM TO BE SOLVED: To provide a check valve capable of suppressing noise caused by passing air, and a siphon drainage system.SOLUTION: A check valve 38 includes a tubular part 44, a throttle part 48 extending from the tubular part 44, and an on-off valve 50 disposed at the tip of the throttle part 48 so as to make surface contact by an elastic force for closing a channel. At least a part of the edge of the on-off valve adjacent to the throttle part 48 inclines to the direction orthogonal to the central line of the throttle part 48 in the plan view.SELECTED DRAWING: Figure 1
【課題】空気が通過する際の異音を抑えることができる逆流防止弁、及びサイホン排水システムを提供する。【解決手段】逆流防止弁３８は、管状部４４と、管状部４４から延出する絞り部４８と、絞り部４８の先端部に設けられ弾性力で面接触して流路を閉塞し、平面視で絞り部４８側の縁部の少なくとも一部が絞り部４８の中心線と直交する方向に対して傾斜する開閉弁５０と、を備える。【選択図】図１
CHECK VALVE AND SIPHON DRAINAGE SYSTEM
PROBLEM TO BE SOLVED: To provide a check valve capable of suppressing noise caused by passing air, and a siphon drainage system.SOLUTION: A check valve 38 includes a tubular part 44, a throttle part 48 extending from the tubular part 44, and an on-off valve 50 disposed at the tip of the throttle part 48 so as to make surface contact by an elastic force for closing a channel. At least a part of the edge of the on-off valve adjacent to the throttle part 48 inclines to the direction orthogonal to the central line of the throttle part 48 in the plan view.SELECTED DRAWING: Figure 1
【課題】空気が通過する際の異音を抑えることができる逆流防止弁、及びサイホン排水システムを提供する。【解決手段】逆流防止弁３８は、管状部４４と、管状部４４から延出する絞り部４８と、絞り部４８の先端部に設けられ弾性力で面接触して流路を閉塞し、平面視で絞り部４８側の縁部の少なくとも一部が絞り部４８の中心線と直交する方向に対して傾斜する開閉弁５０と、を備える。【選択図】図１
CHECK VALVE AND SIPHON DRAINAGE SYSTEM
逆流防止弁、及びサイホン排水システム
MARUYAMA HIDEYUKI (author)
2016-11-24
Patent
Electronic Resource
Japanese
IPC:
E03C
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER
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Hausinstallationen für Frisch- oder Abwasser