Air-liquid damping cylinder

The utility model relates to an air-liquid damping cylinder, which is combined with air pressure and liquid pressure. The structure of the utility model is provided with an air cylinder and a liquid-pressure damping cylinder. The utility model is characterized in that the air-liquid damping cylinder is also provided with a sliding one-way valve; a guide tube, a governing oil needle, and the liquid-pressure damping cylinder are sheathed in the air cylinder; the liquid-pressure damping cylinder which can also be used as the piston of the air cylinder is provided with a damping piston and a piston rod inside; the end of the liquid-pressure damping cylinder and the inner magnet of the piston rod are provided with the guide tube; the sliding one-way valve is inserted on the damping piston. The utility model has the advantages that the structure is compact, the size is small, an ideal operating cycle of fast forward-slow in-fast reverse can be realized, the regulation of speed is convenient, and installation and arrangement are easy.