Side top plate seam blocking structure and mounting method

The invention provides a side top plate seam blocking structure and an installation method, the side top plate seam blocking structure comprises a seam blocking plate and a hinge cover plate, the upper portion of the inner wall of the seam blocking plate is provided with an upper connecting seat, the lower portion of the inner wall of the seam blocking plate is provided with a lower connecting seat, and the seam blocking plate is attached to the inner walls of two adjacent side top plates; the hinged cover plate is rotationally connected to the upper edge of the seam blocking plate through a rotating shaft and can be driven by swinging of the side top plate to be matched with the side top plate to rotate. According to the side top plate gap blocking structure, the gap blocking plate can block the lower gap between the side top plates, the hinged cover plate is hinged to the upper edge of the gap blocking plate, when the side top plates swing around the hinged shaft, the parts, located above the hinged shaft,