本发明涉及到罐货车的半球罩，更具体地，并且以密封罐货车的均匀强度部分的圆顶，一边被支撑在罐货车的圆顶罩的圆顶以能够在水平方向上枢转的 铰链装置，其固定在罐车穹顶的一个外壁上，在其上部具有开口并具有垂直于上部方向的铰链轴; 支撑块，固定在朝向铰链装置的穹顶的配合侧的外壁上并向上突出并在内端形成有钩; 支撑臂，其具有可旋转地支撑在所述铰链轴上的旋转体，所述支撑臂根据相对于铰链轴的旋转位置由锁定爪支撑; 螺杆轴，其根据螺纹接合通过支撑臂上下移动并将手柄固定到上端; 并且盖体固定在螺杆轴的下端上，并覆盖圆顶部的开口的板状。

The present invention relates to a dome cover of the tank lorries which relates to a dome cover of the tank lorries, and to more particularly sealing parts of the dome of the tank lorries with a uniform force, the one side is supported on the dome to rotate in the horizontal direction , having a hinge means is fixed to a side of the outer wall tank lorries dome having an opening at the top hinge axis perpendicular to the upper direction; Said hinge means is fixed to the dome portion and the other end facing the outer wall forms a shape protruding toward the image side, a support block engaging shoulder formed at the inner end; It provided with a rotating body that is rotatably supported on the hinge shaft, the supporting arm, supported by the engaging shoulder in accordance with a rotational position based on the hinge axis; The support arm passes through the elevating according to the screwed and fixed to the handle rod at the top of the screw shaft; It characterized by yirueojim including a cover body which is fixed to the plate-like rod with a screw shaft lower end portion that covers the dome openings. Tank wagons, tank lorry, tanker vehicles, dome, dome cover