The lifting column of the column base bridge is fixed on the hinged seat of the apron. The telescopic oil cylinder under the channel can drive the channel and aircraft interface to extend to connect with the aircraft or retract to the parked bridge state. The aircraft interface can rotate left and right in a small range to adapt to the aircraft; the canopy at the front end of the aircraft interface can extend to fit tightly against the aircraft fuselage to meet the requirements of all-weather passenger service.
