| 摘要 |
PURPOSE: A device for preventing earth and sand from flowing in is provided to easily open an opening and closing plate by connecting the opening and closing plate to a sewage inflow plate using a hinge. CONSTITUTION: A device for preventing earth and sand from flowing in comprises frames(10), a sewage inflow plate(20), an opening and closing plate(30), and an elastic support device(40). The frames are installed in both corners of an overflow chamber. The sewage inflow plate crosses the frames and guides sewage. The opening and closing plate is rotatably connected to one side of the sewage inflow plate. The elastic support device is installed between the opening and closing plate and the frames. |
