A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CHECK VALVE
PROBLEM TO BE SOLVED: To provide a check valve of a simple structure that may be installed at a low cost.SOLUTION: A check valve is installed in a container, and includes: an upstream-side annular part inserted into an inflow pipe connecting port for having drainage flow into the container; a downstream-side annular part inserted into a drain pipe connecting port for draining the drainage from the container; an invert part connecting the upstream-side annular part with the downstream-side annular part; and an upstream-side valve body provided on an edge part of the upstream-side annular part on an outflow side for opening/closing an opening formed on the outflow side of the upstream-side annular part, or a downstream-side valve body provided on an edge part on an outflow side of the downstream-side annular part for opening/closing an opening formed on the outflow side of the downstream-side annular part. An outer peripheral surface of the downstream-side annular part and an inner peripheral surface of the drain pipe connecting port are engaged for holding the check valve.SELECTED DRAWING: Figure 1
【課題】簡易な構造を有し低コストでマスに設置することができる逆流防止弁を提供する。【解決手段】マス内に設置する逆流防止弁であって、前記マスに排水を流入させる流入管接続口に挿入する上流側環状部と、前記マスから前記排水を排出させる排出管接続口に挿入する下流側環状部と、前記上流側環状部と前記下流側環状部を接続するインバート部と、前記上流側環状部の流出側の端部に設けられ前記上流側環状部の流出側に形成される開口を開閉自在とする上流側弁体または前記下流側環状部の流出側の端部に設けられ前記下流側環状部の流出側に形成される開口を開閉自在とする下流側弁体と、を有し、前記下流側環状部の外周面と前記排出管接続口の内周面とが係止することにより保持される。【選択図】図１
CHECK VALVE
PROBLEM TO BE SOLVED: To provide a check valve of a simple structure that may be installed at a low cost.SOLUTION: A check valve is installed in a container, and includes: an upstream-side annular part inserted into an inflow pipe connecting port for having drainage flow into the container; a downstream-side annular part inserted into a drain pipe connecting port for draining the drainage from the container; an invert part connecting the upstream-side annular part with the downstream-side annular part; and an upstream-side valve body provided on an edge part of the upstream-side annular part on an outflow side for opening/closing an opening formed on the outflow side of the upstream-side annular part, or a downstream-side valve body provided on an edge part on an outflow side of the downstream-side annular part for opening/closing an opening formed on the outflow side of the downstream-side annular part. An outer peripheral surface of the downstream-side annular part and an inner peripheral surface of the drain pipe connecting port are engaged for holding the check valve.SELECTED DRAWING: Figure 1
【課題】簡易な構造を有し低コストでマスに設置することができる逆流防止弁を提供する。【解決手段】マス内に設置する逆流防止弁であって、前記マスに排水を流入させる流入管接続口に挿入する上流側環状部と、前記マスから前記排水を排出させる排出管接続口に挿入する下流側環状部と、前記上流側環状部と前記下流側環状部を接続するインバート部と、前記上流側環状部の流出側の端部に設けられ前記上流側環状部の流出側に形成される開口を開閉自在とする上流側弁体または前記下流側環状部の流出側の端部に設けられ前記下流側環状部の流出側に形成される開口を開閉自在とする下流側弁体と、を有し、前記下流側環状部の外周面と前記排出管接続口の内周面とが係止することにより保持される。【選択図】図１
CHECK VALVE
逆流防止弁
SHIMIZU MICHIHIRO (author) / MIDORIKAWA TATSUYA (author)
2017-10-05
Patent
Electronic Resource
Japanese