| 摘要 |
An inspection device for drainage is provided to be installed closely to a wall in case of rooftop greening and to prevent the damage of a waterproof layer by the sharp end of the bottom of the inspection device. An inspection device for drainage comprises a box-shaped main case(10) opened upward and downward to drain off rainwater, a main case cover(20) opened and closed to cover up the top of the main case, drain holes(30) formed on the bottom of the side of the main case in many steps, a chamfer portion(40) cut out along the longitudinal direction of one or more corners of the bottom of the main case, and an edge folding portion(50) formed by extending and folding a side face toward the outside of the main case on the bottom of the main case except the part where the chamfer portion is formed. |
