| 摘要 |
PURPOSE: A grating for preventing odor is provided to prevent odor diffusion and sewage inflow and be capable of draining wastewater efficiently just by a simple structure. CONSTITUTION: A grating for preventing odor includes a side odor blocking device(20). The side odor blocking devices are installed at the front and the rear of the existing bottom odor blocking device. The side odor blocking device is installed at the grating(1) in the direction of water flow to prevent odor which occurs from a sewer and leaks out of the side of the grating. The side odor blocking device comprises a blocking membrane fixing frame(21) and an odor blocking membrane(23). The blocking membrane fixing frame accommodates the odor blocking membrane. The odor blocking membrane is made of a thin and flexible material. |
