| 摘要 |
A fixing structure of a manhole cover is provided to install a manhole cover easily and exactly, and to make economic construction possible by reducing processes and materials required for manhole installation. A fixing structure of a manhole cover, composed of a supporter placed on a base pipe buried to be opened upward and downward and a cover set on the supporter to be attachable and detachable to open and close the base pipe, includes many fasteners(50) fixed to the supporter along the circumference of the base pipe and projected to the lower part of the supporter to hold a horizontal movement of the cover to support, wherein the fastener comprises a main body provided with a through hole(51a) having a screw thread on the inner circumference, a first fastening device(52) projected from the main body in the perpendicular direction to the through hole and fixed to the supporter, and a screw(54) inserted to the through hole to make the end abut on the outside of the base pipe. |
