| 摘要 |
An integrated type manhole cover for the odor prevention is provided to prevent the life accident due to the missing cover and to prevent the order. An integrated type manhole cover for the odor prevention comprises: a manhole main body(12) having a drain outlet(11); a support hole(15) on a drain outlet guide(13); and a rotary blade having a rotary pin(16), a rotary blade plate(14) and a balance(17). The manhole is assembled into one body. The order is prevented by closing the rotary blade plate. The balance is opened with the weight of rainwater to have the rainwater flowed in. |
