Water draught detection device for ship

The utility model relates to a water draught detection device for ship, which consists of a U-shaped floating box, a winding device, a detection door, an ultrasonic wave sensor array and a data acquisition and wireless communication device; the U-shaped floating box consists of a right U-shaped floating box and a right U-shaped floating box, which are respectively arranged at the two sides of a river way; the winding device consists of a left winding device, a right winding device, a left mooring rope and a right mooring rope; the left winding device and the left mooring rope are arranged on the left U-shaped floating box; the left mooring rope is connected with the left end of the detection door; the right winding device and the right mooring rope are arranged on the right U-shaped floating box; the right mooring rope is connected with the right end of the detection door; and the detection door is suspended at a position with the H underwater preset depth through the mooring ropes. The data acquisition and wireless communication device is arranged on the U-shaped floating box; the detection door is an installation frame; the ultrasonic wave sensor array is arranged on the installation frame; the ultrasonic wave sensor array is connected with the data acquisition and wireless communication device through a data line; and the data acquisition and wireless communication device is communicated with a computer of a control center on the shore through a wireless communication device.