Hydrogenation device for fully supplementing hydrogen to small gas cylinder

The hydrogenation device comprises a transverse plate, a machine shell and a hydrogen storage tank, supporting legs are connected to the two sides of the transverse plate, a clamping mechanism is arranged in the transverse plate, an inflation nozzle is connected to the bottom end of a folding hose, and pushing mechanisms are arranged on the two sides of the inflation nozzle. The hydraulic push rod is started to stretch out to push the connecting plate to drive the inflation nozzle integrated with the fixing ring to move downwards through the telescopic folding hose with the wrinkle structure, so that the inflation nozzle can be inserted into a bottle opening of an inflation gas bottle for butt-joint inflation; by starting the hydraulic push rod to retract, the fixed ring can drive the inflated inflating nozzle to move upwards to leave the inflating gas cylinder to be retracted and reset, and meanwhile, the sleeve block slides along the surface of the sliding rod to guide the fixed ring, so that the stability