A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a check valve capable of securing a drain flow rate of a branch pipe and preventing backflow from a main pipe.SOLUTION: A check valve 10 includes a valve body 11 having a circular shape, a suppression member 20 configured to hold the valve body 11 in a branch pipe 5, and an adapter 30 configured to detachably attach the valve body 11 and the suppression member 20 to the branch pipe 5. The valve body 11 has a rotational shaft 12 in a position offset upwardly from a center line of the branch pipe 5. The suppression member 20 includes a concave rotational shaft receiving part 21 configured to be fitted with and hold the rotational shaft 12 of the valve body 11.SELECTED DRAWING: Figure 5
【課題】 枝配管の排水流量を確保しつつ、かつ、主配管からの逆流を防止することができる逆流防止弁を提供する。【解決手段】 逆流防止弁１０は、円形状を有する弁体１１と、弁体１１を枝配管５内に保持する抑え部材２０と、弁体１１と抑え部材２０とを枝配管５へ着脱自在に取り付けるアダプタ３０とを備え、弁体１１は、枝配管５の中心線から上方へずれた位置に回転軸１２を有しており、抑え部材２０は、弁体１１の回転軸１２を嵌合させて保持する凹部の回転軸受け部２１を備える。【選択図】図５
PROBLEM TO BE SOLVED: To provide a check valve capable of securing a drain flow rate of a branch pipe and preventing backflow from a main pipe.SOLUTION: A check valve 10 includes a valve body 11 having a circular shape, a suppression member 20 configured to hold the valve body 11 in a branch pipe 5, and an adapter 30 configured to detachably attach the valve body 11 and the suppression member 20 to the branch pipe 5. The valve body 11 has a rotational shaft 12 in a position offset upwardly from a center line of the branch pipe 5. The suppression member 20 includes a concave rotational shaft receiving part 21 configured to be fitted with and hold the rotational shaft 12 of the valve body 11.SELECTED DRAWING: Figure 5
【課題】 枝配管の排水流量を確保しつつ、かつ、主配管からの逆流を防止することができる逆流防止弁を提供する。【解決手段】 逆流防止弁１０は、円形状を有する弁体１１と、弁体１１を枝配管５内に保持する抑え部材２０と、弁体１１と抑え部材２０とを枝配管５へ着脱自在に取り付けるアダプタ３０とを備え、弁体１１は、枝配管５の中心線から上方へずれた位置に回転軸１２を有しており、抑え部材２０は、弁体１１の回転軸１２を嵌合させて保持する凹部の回転軸受け部２１を備える。【選択図】図５
CHECK VALVE
逆流防止弁
HATTORI DAISUKE (author)
2018-02-01
Patent
Electronic Resource
Japanese