Water-hydraulic-drive auto-timing reversing valve

A water-hydraulic-drive auto-timing reversing valve is characterized in that an upper cavity and a lower cavity are formed in a valve body, a spring is disposed above a valve plate, the valve body is provided with an upper water inlet, an upper water outlet, a lower water inlet and a lower water outlet, an upper square valve plate and a lower square valve plate are connected to the inner wall of the valve body, the upper square valve plate is provided with an upper water inlet via and an upper water outlet via, the lower square valve plate is provided with a lower water inlet via and a lower water outlet via, a drive lever and a transmission lever are hinged in each of the upper and lower cavities, and stop rods are disposed on the square valve plates. The water-hydraulic-drive auto-timing reversing valve has the advantages that driving force is provided by pressure of water or other fluids, automatic regular change of water passage can be achieved, the structure is simple, the price is low, parts are corrode