The utility model relates to a kind of plug filling
nitrogen head structure. Including filling
nitrogen head body, inside is formed with the first passageway passing through bottom, respectively with first vacuum air path and
nitrogen gas path intercommunication, first vacuum air path is configured to carry out vacuumizing operation to container inside,
nitrogen gas path is configured as to fill into
nitrogen gas in container;Plug rod, inside is formed with the second passageway passing through bottom, with second vacuum air path intercommunication, second vacuum air path is configured to carry out vacuumizing to plug rod inside, for the sealing
assembly of plug rod bottom suction and container mouth sealing of container, the lower end of plug rod and filling nitrogen head body movably connect, upper end and driving mechanism connect, under the driving of driving mechanism, plug rod moves in the first passageway inside filling nitrogen head body, to seal sealing
assembly in container mouth, first vacuum air path and
nitrogen gas path are integrated in filling nitrogen head body, realize the
continuous operation of vacuumizing in container and filling nitrogen;Stable fixed sealing
assembly by vacuum adsorption, improve sealing reliability.