Hydraulically-driven rotary weir gate

The utility model relates to the technical field of rotary checkgates, and discloses a hydraulically-driven rotary checkgate which comprises a door plate, a side plate and a hydraulic rod, a U-shaped connecting piece is arranged on the front face of the door plate, the output end of the hydraulic rod is rotationally connected with the U-shaped connecting piece through a connecting shaft, a supporting base is arranged at the lower end of the door plate, and the supporting base comprises a bottom plate and a connecting base. The upper end and the back face of the connecting base are arc faces, and a fixing assembly is arranged on the outer side of the upper end of the hydraulic rod. According to the hydraulically-driven rotary weir gate, the arc-shaped guide rod is arranged, in the rotating process of the gate plate, the arc-shaped guide rod can effectively achieve the supporting and guiding effects, meanwhile, the front end of the sliding shaft slides in the arc-shaped sliding groove, the limiting and guiding