Oxygenation device for freshwater aquaculture

The utility model provides an oxygenation device for freshwater aquaculture. The oxygenation device for freshwater aquaculture comprises a floating plate, the frame shaped like the Chinese character'hui 'is fixedly mounted at the top of the floating plate; the bearing plate is arranged above the floating plate; the rotating rod is rotationally mounted on the inner wall of one side of the concentric-square-shaped frame; the motor is fixedly installed on the outer wall of one side of the concentric-square-shaped frame, and an output shaft of the motor is fixedly connected with one end of the rotating rod; the first bevel gear is fixedly arranged on the rotating rod in a sleeving manner; and the two mounting plates are fixedly mounted on the inner walls of the two sides of the concentric-square-shaped frame, the bottoms of the two mounting plates are fixedly connected with the floating plate, and the rotating rod is located between the two mounting plates. The oxygenation device for freshwater aquaculture has th