| 摘要 |
An offensive odor prevention structure of a sewer pipe in a new city is provided to prevent the inflow of an offensive odor through a sewage conduit and the counterflow of sewage through a drainpipe using an offensive odor cutoff plate and a counterflow prevention plate. The offensive odor prevention structure of a sewer pipe in a new city comprises a manhole(10) installed between a drainpipe and a sewage conduit to cut off an offensive odor from the sewage conduit and sewage flew backward from the sewage conduit in the rainy season and filled with sewage at the fixed level to make the bottom of an offensive odor cutoff plate submerged in the sewage, an offensive odor cutoff plate(20) installed to the inside of the manhole to prevent an inflow of an offensive odor to an apartment house through the drainpipe and moved smoothly in the manhole by the pressure of sewage flew in the manhole, and a counterflow prevention plate(30) installed on the manhole connected with the drainpipe to seal up the drainpipe and to cut off sewage flew backward from the sewage conduit in the rainy season. |
