| 摘要 |
Disclosed is a lid for covering a ditch or a drain, having a blocking valve to prevent back flow of sewage and malodor. A bearing of a valve having a weight is assembled with a frame, a portion for preventing the malfunction of the valve is formed, and a cover for protecting the bearing of the valve is assembled with the frame. Thus, the ditch or the drain is covered to provide an agreeable and sanitary environment. Further, the inflow of a light but voluminous garbage can be prevented, so it is easy to clean with low costs and provides a good look at the drain and the ditch.
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