Door structure for refrigeration and thermo-insulation wagon

The utility model discloses a refrigeration and heat-insulation wagon door, characterized in that at least two seal strips of various height are positioned between the door and the frame; non-metal wedged part is positioned on the frame; the internal skin and the external skin of the door is connected by the non-metal plate. The utility model is equipped with seal strips of various heights positioned between the door and the frame, the non-metal wedged part positioned on the frame, and the internal skin and the external skin of the door connected by the non-metal plate, thereby insulates the internal and external heat conduction between the door and the frame of the wagon door, and between the internal and the external skin of the door for the refrigeration and heat-insulation wagon. The non-metal wedged part progressively contacts the seal strip, which makes the door better sealed when closed and more effort-saving when opened. One side of the door is positioned with the non-metal wedged part which makes the inclined slope of the central joint between the two doors eliminate the variation of the rotating radius caused by the thickness of the door when the door is opened, and makes the wagon door easily opened and closed.