| 摘要 |
The present invention relates to a prefabricated drain device. The prefabricated drain device includes a side panel arranged on both sides of a dent unit which is dented on the ground to have a length and a bottom panel arranged in the lower part of the dent unit. The bottom panel has a small waterway as both sides thereof are curved downwards and a large waterway as the small waterway is connected to the lower part of the side panel. Moreover, the prefabricated drain device includes a support member arranged along both sides of the upper part of the dent unit and a cover support unit which is placed on the upper side of the support member and has both sides extended downwards, wherein one stepped side of the extended both sides is connected to the inner surface of the side panel facing the large waterway. The present invention also includes a cover which has one or more openings and is mounted on the upper part of one side of the cover support unit with stepped both sides. |
