| 摘要 |
PURPOSE: A manhole for preventing bad smell is provided to enable rainwater to be quickly discharged to a sewage pipe and to prevent bad smell from making backflow from a sewage pipe and becoming externally emitted. CONSTITUTION: A manhole for preventing bad smell comprises a manhole support(300), a case(400), a rotatable cover(500) and a guide member(600). The manhole support comprises a cover(200). The case is coupled to the manhole support. The rotatable cover is installed on the case and guides fluid in one direction. The guide member quickly moves the fluid toward a sewage pipe(100). |
