Zero-emission shifting fork type gas-liquid actuating mechanism

The invention discloses a zero-emission shifting fork type gas-liquid actuating mechanism, which belongs to the technical field of pressure actuating mechanisms and comprises a torque output unit consisting of a shifting fork box body, a shifting fork mounted inside the shifting fork box body and an oil cylinder mounted outside the shifting fork box body, the upper cavities of the power energy accumulator and the control energy accumulator are connected with the liquid discharge end of the infusion pump through oil pipes, and the lower cavities of the power energy accumulator and the control energy accumulator are connected with a natural gas pipeline through gas pipes; hydraulic control units are arranged on the top of the mounting bracket and the side of the torque output unit; an electric control unit is arranged on the upper portion of the supporting side rod. The hydraulic control unit is provided with the pilot oil return pipeline and the main oil return pipeline, the two oil return pipelines exist inde