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BACKFLOW PREVENTION BASIN
To easily replace a valve body of a backflow prevention basin at a low cost.SOLUTION: A backflow prevention basin 10 is installed in a drainage pipeline that connects an indoor drainage system to a sewer line. The backflow prevention basin 10 comprises a drain basin main body 11, an inspection port 11a open at the top of the drain basin main body 11, a drainage inflow pipe portion 12 and an outflow pipe portion 13 provided on the side wall of the drain basin main body 11, and a valve body 14 configured to be able to close a downstream opening 12b of the inflow pipe portion 12. A pivot portion 15 is provided on the downstream end of the inflow pipe portion 12. The valve body 14 is rotatably held by the pivot portion 15. The valve body 14 includes a valve main body 141, a rotating shaft portion 143 provided on the valve main body 141, and a pivoted portion 144 provided at the end of the rotating shaft portion 143. The pivoted portion 144 is detachably held by the pivot portion 15.SELECTED DRAWING: Figure 2
【課題】逆流防止マスにおいて弁体の交換を容易且つ低コストで行えるようにする。【解決手段】逆流防止マス１０は、屋内排水設備と下水管とを接続する排水管路に設けられる。逆流防止マス１０は、排水マス本体１１と、排水マス本体１１の上部に開口する点検口部１１ａと、排水マス本体１１の側壁に設けられた排水の流入管部１２及び流出管部１３と、流入管部１２の下流側開口１２ｂを閉鎖可能に構成された弁体１４とを備える。流入管部１２の下流端の上に軸支部１５が設けられる。軸支部１５に弁体１４が回動可能に保持される。弁体１４は、弁本体１４１と、弁本体１４１の上に設けられた回動軸部１４３と、回動軸部１４３の端部に設けられた被軸支部１４４とを有する。被軸支部１４４は、軸支部１５に着脱可能に保持される。【選択図】図２
BACKFLOW PREVENTION BASIN
To easily replace a valve body of a backflow prevention basin at a low cost.SOLUTION: A backflow prevention basin 10 is installed in a drainage pipeline that connects an indoor drainage system to a sewer line. The backflow prevention basin 10 comprises a drain basin main body 11, an inspection port 11a open at the top of the drain basin main body 11, a drainage inflow pipe portion 12 and an outflow pipe portion 13 provided on the side wall of the drain basin main body 11, and a valve body 14 configured to be able to close a downstream opening 12b of the inflow pipe portion 12. A pivot portion 15 is provided on the downstream end of the inflow pipe portion 12. The valve body 14 is rotatably held by the pivot portion 15. The valve body 14 includes a valve main body 141, a rotating shaft portion 143 provided on the valve main body 141, and a pivoted portion 144 provided at the end of the rotating shaft portion 143. The pivoted portion 144 is detachably held by the pivot portion 15.SELECTED DRAWING: Figure 2
【課題】逆流防止マスにおいて弁体の交換を容易且つ低コストで行えるようにする。【解決手段】逆流防止マス１０は、屋内排水設備と下水管とを接続する排水管路に設けられる。逆流防止マス１０は、排水マス本体１１と、排水マス本体１１の上部に開口する点検口部１１ａと、排水マス本体１１の側壁に設けられた排水の流入管部１２及び流出管部１３と、流入管部１２の下流側開口１２ｂを閉鎖可能に構成された弁体１４とを備える。流入管部１２の下流端の上に軸支部１５が設けられる。軸支部１５に弁体１４が回動可能に保持される。弁体１４は、弁本体１４１と、弁本体１４１の上に設けられた回動軸部１４３と、回動軸部１４３の端部に設けられた被軸支部１４４とを有する。被軸支部１４４は、軸支部１５に着脱可能に保持される。【選択図】図２
BACKFLOW PREVENTION BASIN
逆流防止マス
ICHINOSE KEIJIRO (author) / MAYAMA ATSUYA (author)
2023-07-20
Patent
Electronic Resource
Japanese
IPC:
E03F
SEWERS
,
Abwasserkanäle
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