Liquefied can-type rotary joint

The utility model discloses a liquefied can-type rotary joint comprising a shell (1), a sealing ring (2), a shaft check ring (3), a first bearing (4), a spacer bush (5), a hole check ring (6), a hollow shaft (7), an O-shaped ring (8), a steam exhaust pipe (9) and a second bearing (10). The sealing ring (2) is arranged in the groove inside the shell (1); the shaft check ring (3) is arranged in the groove of the hollow shaft (7); the first bearing (4) and the second bearing (10) are arranged between the inner bore of the shell (1) and the outside diameter of the hollow shaft (7); the spacer bush (5) is arranged between the first bearing (4) and the second bearing (10); the steam exhaust pipe (9) is arranged inside the shell and connected with a thread; the O-shaped ring (8) is arranged in the groove on the end surface of the hollow shaft (7); and the hole check ring (6) is used for limiting to connect all parts into a whole. The liquefied can-type rotary joint disclosed by the utility model has the advantages a