| 摘要 |
The manhole (1) has a frame (2) coupled to a gully defined by a space (2a) of a roadway and a space (2b) interrupting a curb. A grid (3) is articulated on the frame and located at height of the roadway. A cover (4) is articulated on the frame and located at height of the curb. The grid covers the space of the roadway and the space interrupting the curb. The grid is partially covered by the cover. The grid and the cover are articulated on a same side (5) of the frame to leave remaining sides of the frame to be free in an opening position. |
