Portable built-in hydraulic steel gate internode connecting structure

The utility model belongs to the field of gates, and particularly discloses a portable built-in hydraulic steel gate internode connecting structure which comprises an upper lifting lug plate, a lower lifting lug plate and an internode connecting piece, connecting lug plates are perpendicularly fixed to the middles of the opposite faces of the upper lifting lug plate and the lower lifting lug plate respectively, and rectangular connecting holes are formed in the centers of the two connecting lug plates respectively. The internode connecting piece is of a U-shaped structure and comprises two parallel inserting plates. The internode connecting piece penetrates through the connecting holes in the upper lifting lug plate and the lower lifting lug plate through the two inserting plates and is tightened through a fastening plate, and the fastening plate is limited through a screw penetrating through the tail ends of the two inserting plates. The upper lifting lug plate and the lower lifting lug plate on the upper ga