Six-stage scroll compressor

The utility model relates to a six-stage scroll compressor, which belongs to the technical field of design theory of mechanical equipment and mainly comprises movable scrolls, fixed scrolls, crossed rings and an eccentric shaft. A plurality of pairs of closed six-stage crescent cavities can be formed by assembling the movable scrolls and the fixed scrolls which are identical in scroll profile parameters and have the phase difference equal to pai and the base circle center distance equal to r. When the center (base circle center) of the movable scrolls moves around the center (base circle center) of fixed scrolls by the radius r along a circumference track, the number of the closed cavities can be increased or decreased correspondingly, so that air suction, compression and exhaust are realized. The first-stage compression, the second-stage compression, the third-stage compression, the fourth-stage compression, the fifth-stage compression and the sixth-stage compression function simultaneously, and low-pressure