| 摘要 |
PURPOSE: A liftable floodgate is provided to prevent damage to a sealing member during lifting by completely blocking friction between the sealing member and a guide when a liftable floodgate is opened and closed. CONSTITUTION: A liftable floodgate(10) comprises one or more rollers(11), a sealing member(12), and a groove. The rollers are installed on both sides of a floodgate. The rollers roll on the front or rear wall of a guide. The sealing member is installed on one side of the floodgate and faces the front or rear wall of the guide supporting the rollers. The groove is formed on the wall of the guide facing the sealing member and holds rollers simultaneously with the closing of the floodgate. |
