Water retaining device for hydraulic engineering construction

The utility model relates to the technical field of water retaining in hydraulic engineering construction, and discloses a water retaining device for hydraulic engineering construction, which comprises a support plate, a driving mechanism and a water retaining mechanism, the water retaining mechanism comprises a plurality of water retaining plates which are arranged side by side and slidably connected relative to the supporting plate, racks are arranged in the middles of the water retaining plates, and auxiliary supporting assemblies are arranged at the bottoms of the water retaining plates; the driving mechanism comprises bearing seats arranged at the two ends of the supporting plate, the bearing seats are rotationally connected with second rotating shafts, the middles of the second rotating shafts are slidably connected with sliding sleeves, and the middles of the sliding sleeves are sleeved with driving gears matched with the racks. According to the water retaining device for hydraulic engineering construc