Compressor piston structure

The utility model relates to a limit structure, especially a compressor piston structure, the whole hollow circular cylinder that is of piston, piston upper surface opening sets up, and surface closed sets up under the piston, the piston lower surface is provided with circular arch (1), piston surface intermediate position is equipped with annular groove (2), annular groove (2) are gone up the symmetry and are provided with two little through -hole (3), two little through -hole (3) and the inside intercommunication of piston, still be provided with two big through -hole (4) on the piston surface, two big through -hole (4) and the inside intercommunication of piston, piston inside kenozooecium (5) structure is I -shaped setting, the utility model discloses among the technical scheme, designed a compressor piston structure, the dead phenomenon of card no longer appears in the fine messenger's connecting rod of this kind of whole, can not cause compressor power bigger than normal.