Automatic seal nitrogen machine

The utility model provides an automatic seal nitrogen machine, includes the frame, blocks the jacking device, elevating gear and notes nitrogen device, block jacking device and elevating gear installin in the frame, elevating gear connect in annotate the nitrogen device, it includes the crane and seals the nitrogen subassembly to annotate the nitrogen device, elevating gear connect in the crane,seal the nitrogen subassembly set up in on the crane, it includes lower cylinder, cavity cylinder, centering group and gas injection group to seal the nitrogen subassembly, go up the lower cylinder set up in on the crane, go up the lower cylinder connect in the cavity cylinder, gas injection group with centering the group link in the cavity cylinder, centering group set up in the outside of gas injection group. The utility model provides an automatic seal nitrogen machine can realize the accurate nitrogen that seals, and degree of automation is high, and work efficiency is also high moreover. 种自动封氮机，包括机架、阻挡顶升装置、升降装置和注氮