Automatic lifting hydraulic movable water retaining dam based on PLC control

The invention discloses an automatic lifting hydraulic movable water retaining dam based on PLC control, and relates to the technical field of water retaining dams. The dam comprises a hydraulic mechanism base, a hydraulic rod and a water retaining plate, wherein the bottom of the water retaining plate is rotatably connected to the ground through a hinge base, a main sleeve of the hydraulic rod isfixedly connected to the interior of the hydraulic mechanism base, a supporting base is fixedly connected to the top of the hydraulic mechanism base, According to the automatic lifting hydraulic movable water retaining dam based on the PLC control, a hydraulic cylinder used for supporting in a traditional hydraulic movable dam is changed into a hydraulic cylinder only used for pushing, supportingis borne by supporting square steel, the supporting square steel is erected on the water retaining plate in the state that the water retaining plate is put down, after the water retaining plate is supported by the hydraulic r