Road and bridge sound insulation board fixing structure

The utility model provides a fixing structure for a sound insulation board of a road bridge, and belongs to the technical field of constructional engineering. According to the technical scheme, the road and bridge sound insulation board fixing structure comprises a U-shaped base, a sound insulation board body is arranged in the U-shaped base, an elastic supporting mechanism for supporting the sound insulation board body is further arranged at the bottom of the inner side of the U-shaped base, and rotating rods are arranged at the positions, close to the top end of the U-shaped base, of the two sides of the sound insulation board body. A rotating rod is arranged on the U-shaped base, a clamping part is arranged on the outer side of the lower end of the rotating rod, a groove is formed in the position, opposite to the rotating rod, of the U-shaped base, a baffle is arranged above the groove, a clamping hole matched with the clamping part is formed in the baffle, the rotating rod rotates to enable the clamping p