A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BACKFLOW PREVENTION FITTING
To provide a backflow prevention fitting capable of being installed in the middle or end of drainage pipes in a home, and the like, and capable of efficiently preventing backflow in multiple drainage pipes in the home and the like by installing the minimum number of units required, and furthermore, capable of easily performing maintenance inside the joint even in narrow spaces.MEANS FOR SOLVING THE PROBLEM: The backflow prevention fitting includes: a cylindrical fitting body that has an inlet, an outlet, a channel portion connecting the inlet and the outlet, and an inspection port located between the inlet and the outlet and facing the flow path; a lid that can be removably attached to the inspection port; and a valve seat formed on the inner peripheral surface of the fitting body. In the backflow prevention fitting, the valve body is rotatably placed in contact with the upper part of the valve seat, and the central axis of the outlet is arranged at an angle to the central axis of the inlet.SELECTED DRAWING: Figure 1
【課題】宅内等の排水管等の途中や末端に取り付けることができ、そして必要最小限の取付個数により宅内等の複数の排水管の逆流を効率よく防止でき、さらに狭小スペースにおいても継手内部のメンテナンスを容易に行うことができる逆流抑止継手を提供する。【課題を解決するための手段】本発明によれば、流入口と、流出口と、流入口と流出口とを連結する流路部と、流入口と流出口との間で流路部と対向する位置に配置された点検口とを有する筒状の継手本体と、点検口に着脱自在に取り付けられる蓋部と、継手本体の内周面に形成された弁座部とを備えている逆流抑止継手において、弁体は弁座部の上部と接する位置に回動自在に配置されており、流出口の中心軸は、流入口の中心軸に対して傾斜して配置されている逆流抑止継手が提供される。【選択図】 図１
BACKFLOW PREVENTION FITTING
To provide a backflow prevention fitting capable of being installed in the middle or end of drainage pipes in a home, and the like, and capable of efficiently preventing backflow in multiple drainage pipes in the home and the like by installing the minimum number of units required, and furthermore, capable of easily performing maintenance inside the joint even in narrow spaces.MEANS FOR SOLVING THE PROBLEM: The backflow prevention fitting includes: a cylindrical fitting body that has an inlet, an outlet, a channel portion connecting the inlet and the outlet, and an inspection port located between the inlet and the outlet and facing the flow path; a lid that can be removably attached to the inspection port; and a valve seat formed on the inner peripheral surface of the fitting body. In the backflow prevention fitting, the valve body is rotatably placed in contact with the upper part of the valve seat, and the central axis of the outlet is arranged at an angle to the central axis of the inlet.SELECTED DRAWING: Figure 1
【課題】宅内等の排水管等の途中や末端に取り付けることができ、そして必要最小限の取付個数により宅内等の複数の排水管の逆流を効率よく防止でき、さらに狭小スペースにおいても継手内部のメンテナンスを容易に行うことができる逆流抑止継手を提供する。【課題を解決するための手段】本発明によれば、流入口と、流出口と、流入口と流出口とを連結する流路部と、流入口と流出口との間で流路部と対向する位置に配置された点検口とを有する筒状の継手本体と、点検口に着脱自在に取り付けられる蓋部と、継手本体の内周面に形成された弁座部とを備えている逆流抑止継手において、弁体は弁座部の上部と接する位置に回動自在に配置されており、流出口の中心軸は、流入口の中心軸に対して傾斜して配置されている逆流抑止継手が提供される。【選択図】 図１
BACKFLOW PREVENTION FITTING
逆流抑止継手
MIZUNO HIROTOSHI (author) / HASHIZUME MINORU (author)
2023-08-30
Patent
Electronic Resource
Japanese
IPC:
E03F
SEWERS
,
Abwasserkanäle
BACKFLOW PREVENTION DEVICE AND BACKFLOW PREVENTION METHOD
| European Patent Office | 2024