Expansion joint asphalt concrete paving cushion plate device

The utility model discloses an asphalt concrete paving cushion plate device for an expansion joint. The asphalt concrete paving cushion plate device comprises a supporting rod, a limiter, a cushion plate and a nut sleeve seat, external threads are arranged at the bottom of the supporting rod; the limiter is fixedly arranged on the supporting rod; the width of the base plate is adjustable and is consistent with the width of the reserved expansion joint; the base plate is arranged on the supporting rod and located above the limiting stopper. The nut sleeve seat is arranged on a beam body or a bridge abutment breast wall of the reserved expansion joint; the bottom of the supporting rod is in threaded connection with the nut sleeve seat, and the height of the base plate can be adjusted by rotating the supporting rod. According to the base plate device, non-rigid conditions such as construction variation do not exist, the asphalt paving quality and the asphalt concrete flatness can be improved, standardized, progr