Filling device convenient for installing liquid argon tank car

The filling device comprises a moving plate, a rotating wheel, a step, a switch, an electric push rod, a liquid argon tank car body and a liquid argon storage tank body, the rotating wheel is arrangedat the bottom end of the moving plate, and the step is fixed to the rear side of the top end of the moving plate. Fixed plates are sequentially fixed to the top ends of the movable plates on the front sides of the steps, a switch is arranged on the front side of the fixed plate at the front end, the lower sides of the two fixed plates are fixedly connected through a connecting plate, an electricpush rod is arranged at the top end of the connecting plate, a sliding plate is fixed to the top end of the electric push rod, and a fixed seat is fixed to the top end of the sliding plate. And a limiting seat is arranged on the right side in the fixing seat. According to the pipeline supporting device, the transportation operation of the connector can be achieved, the operation is simple, manualcarrying is not needed, mea