Efficient and energy-saving gas spring shock absorber

The utility model discloses an efficient and energy-saving gas spring shock absorber, which belongs to the related technical field of automobiles and railway vehicles and comprises a cylindrical shell and a lower lug plate, a base is fixedly arranged at the lower end of the cylindrical shell, an inner cylinder is fixedly arranged at the upper end of the base, an oil flowing bin is arranged at the joint of the cylindrical shell and the inner cylinder, and a contact valve is fixedly arranged at the upper end of the base. The lower end of the barrel shell is fixedly sleeved with a lower end cover, the upper end of the barrel shell is fixedly sleeved with an upper end cover, a bearing is clamped in the upper end cover, the piston rod penetrates through the interior of the bearing in a sliding mode, and the piston rod and the upper end cover are separated through the bearing. Therefore, the piston rod is prevented from being in direct contact with the upper end cover, abrasion generated when the piston rod moves u