Tire nitrogen vulcanization device

The utility model discloses a tire nitrogen vulcanizing device which comprises a vulcanizing platform, a lower die and an inverted L-shaped hanging bracket are arranged on the vulcanizing platform, a tire is placed in the lower die, a hoisting piece is arranged at the bottom of the hanging bracket and located over the center of the lower die, and the hoisting piece comprises a first telescopic part which can stretch out and draw back up and down. The bottom of the first telescopic part is at least provided with three second telescopic parts which can stretch out and draw back leftwards and rightwards and can stretch into the tire, and one end, far away from the first telescopic part, of each second telescopic part is provided with a claw head which can be in contact with the inner wall of the tire; the lifting frame is of a structure comprising the first telescopic parts, the second telescopic parts and the claw heads, the multiple second telescopic parts synchronously extend outwards, the claw heads are atta