Impact type water turbine and impact type hydraulic generator

The invention belongs to the technical field of hydroelectric generators, and particularly relates to an impact type water turbine and an impact type water wheel generator. Rotating discs are rotationally arranged on the two sides of a rack shell, sealing brushes are arranged between the rack shell and the rotating discs, a rotating column is arranged between the rotating discs, and water wheel blades are arranged on the outer cylindrical wall of the rotating column around the axis of the water wheel blades in an annular array mode; a water inlet channel and a water outlet channel are arranged on the other two sides of the rack shell respectively, one part of the water wheel blades is divided into two parts, namely a blade root and a blade tip, and the blade root and the blade tip are connected in a folding mode; the blades of the water wheel can be folded according to the flow velocity of river water flow, and under the condition that the flow velocity of the river is low in a rainless season, some blades on