Multifunctional ultrasonic open channel flow detection device

The utility model provides a multifunctional ultrasonic open channel flow detection device, and belongs to the technical field of open channel flow detection. The multifunctional ultrasonic open channel flow detection device comprises a supporting assembly and an ultrasonic open channel flow meter body. During use, when the water surface in the open channel rises, the water surface floats the floating ball end of the floating ball switch, then the first connecting rod and the second connecting rod can be driven to move upwards, the first connecting rod moves upwards to drive the detection head to move upwards, and the second connecting rod moves upwards to drive the floating ball switch to move upwards. The height of the detection head can be adjusted according to the rising of the water surface in the open channel, when the water surface in the open channel rises, the detection head can still be located at a proper height, and then the detection accuracy of the multifunctional ultrasonic open channel flow de