| 摘要 |
The present invention fundamentally blocks an inflow of rainwater between a waterspout installation groove and a waterspout installation unit of an embedded frame even if the rainwater flowing into a waterspout forming a drainage system fills the waterspout such that a water level reaches the waterspout installation groove formed in an embedded frame. The drainage system comprises: the embedded frame (10) embedded on a side of an upper slab (10); the waterspout installation unit (120) installed in the waterspout installation groove (115) of the embedded frame (110); the waterspout (140) wherein the waterspout installation unit (120) is fixated to both sides thereof; and a sealing member (130) maintaining a seal of the waterspout installation groove (115) by pressing the waterspout. |
