Folding triple-hulled vessel for hydrological monitoring

The folding triple-hulled vessel comprises a main hull and side hulls connected with the two sides of the main hull respectively, the two sides of the main hull are each provided with a concave part for containing the corresponding side hull, and each concave part is internally provided with a connecting rod assembly. The connecting rod assembly comprises a first connecting rod and a second connecting rod connected with one end of the first connecting rod, the other end of the first connecting rod is rotationally connected with the main hull, and the end, away from the first connecting rod, of the second connecting rod is rotationally connected with the side hull. When the first connecting rods and the second connecting rods rotate to be in an overlapped state, the side ship bodies are located in the sunken parts, and when the first connecting rods and the second connecting rods rotate to be in an unfolded state, the side ship bodies are located outside the sunken parts. The triple-hulled vessel can be contai