| 摘要 |
PURPOSE: A height control device for a manhole steel cover is provided to install a steel cover in order to be matched to the height difference of a road or a road surface and a gradient and to prevent surrounding soil or waste water from flowing in a hume pipe. CONSTITUTION: A height control device for a manhole steel cover comprises a soil sheathing supporting bar unit (100), a soil sheathing wing unit (200), and a height control block unit (300). The soil sheathing supporting bar unit is fixed by being mounted on a part of the upper side of a hume pipe for a manhole (800) while a height is controlled and is formed in a C shape. The soil sheathing wing unit is formed in a curve shape which is same as curvature on the outer surface of the hume pipe, and one side of the soil sheathing wing unit encloses the soil sheathing supporting bar unit. The height control block unit is installed between the upper part of the hume pipe and the soil sheathing supporting bar unit and controls the height in which the soil sheathing supporting bar unit is installed on the upper part of the hume pipe. |
