Detection device for hydrology and water resources

The utility model discloses a detection device for hydrology and water resources, which comprises a base, a supporting plate is fixedly mounted on the top surface of the base, a sliding block is mounted in the supporting plate in a sliding manner, and a movable plate is fixedly mounted on one side of the sliding block. Through arrangement of the adjusting mechanism, meshing connection of a gear and a toothed bar, the toothed bar is driven to move, then a connecting rod is driven to move, a piston is moved out of a water inlet channel, water flow enters a water storage chamber through the water inlet channel, through arrangement of a filter plate, the water flow entering the water storage chamber is filtered, and it is avoided that some garbage enters the water storage chamber, and follow-up use is affected; the adjusting motor rotates reversely, so that the piston enters the water inlet channel, the water storage chamber becomes a sealed space, upper-layer water cannot enter the water storage chamber in the u