Aquatic plant detection device

The present invention discloses an aquatic plant detection device which structurally comprises a motor, a connecting shaft, a controller, a telescopic rod, clamping plates and a detection cylinder, the motor is electrically connected with the controller through the connecting shaft, the telescopic rod is connected to the controller, the telescopic rod is slidably matched between the clamping plates, the detection cylinder is arranged in the clamping plates, the detection cylinder comprises a piston, a connecting point, a transition ring, a power assisting assembly and a cylinder wall, the piston is connected to one end of the telescopic rod through the connecting point and connected with the transition ring, the power assisting assembly is installed on the transition ring, the cylinder wall is connected into the clamping plate, and an expanding structure and a pulling-closing device are arranged on the power assisting assembly. When the piston is impacted by inertia of a mixture to form an annular stack, the