Multi-line bridge framing connecting structure for railway ballast track

The invention discloses a railway ballast track multi-line bridge framing connection structure. The device comprises a fixed side vertical wall, a movable side vertical wall and a cover plate, the first end of the cover plate is fixedly connected with the top of the fixed side vertical wall, the second end is arranged at the top of the movable side vertical wall, the contact face of the second end and the movable side vertical wall is an inclined face, and a sliding layer is arranged between the cover plate and the movable side vertical wall; preformed holes are formed in the fixed side vertical wall and the movable side vertical wall respectively, and the two ends of the spring penetrate through the preformed holes to be fixedly connected with the movable side anchor plate and the fixed side anchor plate respectively; the movable side anchor plate is fixedly connected with the movable side vertical wall, and the fixed side anchor plate is fixedly connected with the fixed side vertical wall. The hanging baske