Water-based hydraulic symmetric electrostrictive type high-speed on-off valve

The utility model relates to a water-based hydraulic symmetric electrostrictive type high-speed on-off valve, and belongs to the technical field of hydraulic transmission. The water-based hydraulic symmetric electrostrictive type high-speed on-off valve comprises a water hydraulic high-speed on-off valve, a left electrostrictive actuator and a right electrostrictive actuator. The left electrostrictive actuator and the right electrostrictive actuator are symmetrically arranged at the left end and right end of the water hydraulic high-speed on-off valve. Each electrostrictive actuator is formed by an output rod, a pressing cover, an electrostrictive rod, a sleeve, a shell body, temperature compensation piece and a base. The water hydraulic high-speed on-off valve is formed by a valve element, a valve sleeve, a check ring, a seal ring and a valve body. The water-based hydraulic symmetric electrostrictive type high-speed on-off valve well solves the contradictory problem among high pressure, high frequency respon