Air spring structure for backhoe loader

The air spring structure for the backhoe loader comprises an upper sealing ring (2), a lower sealing ring (5) and an air bag (3), a cushion block (4) is installed in the center of the lower sealing ring (5), a protruding annular supporting structure is arranged on the lower surface of the upper sealing ring (2), and the protruding annular supporting structure is matched with the cushion block (4) in the deflation state. By designing the annular supporting structure at the bottom of the upper sealing ring, when shock absorption is not needed, internal compressed air is discharged to enable the air spring structure to be inelastic, meanwhile, the upper sealing ring falls onto the cushion block, the height of the whole machine is reduced, transportation is convenient, and the annular supporting structure has good strength; the conical structure is matched with the cushion block, so that the impact in the transportation process can be well dealt with, and the structure of the air spring is intact. 本发明公开了一种挖掘装载机用空