Elliptical pin rotating and moving base

The utility model discloses an elliptical pin rotary moving base, relates to the technical field of vestibule connecting bases, and solves the problem that when an existing moving base is connected with a vestibule or a truss for use, the vestibule or the truss is easily affected by thermal expansion and cold contraction to stretch out and draw back. The elliptical pin rotating and moving base comprises bases, connecting pieces and following plates, the base is arranged at the bottoms of the two bases, and the base is of a rectangular structure; the front sides of the two bases are each provided with a main movable hole. An auxiliary movable hole is formed in the front side of the following plate; a connecting piece is arranged in the two main movable holes; the following plate is installed between the two bases through cooperation of the two connecting holes A, the auxiliary movable holes and the connecting pieces. The base and the following plate drive the connecting piece to rotate in the two main movable