Municipal road and bridge crack repairing and fixing structure

The utility model discloses a municipal road and bridge crack repairing and fixing structure which comprises a roadbed layer, a limiting plate is tightly attached to the top of the roadbed layer, grooves are evenly formed in the front and back positions of the left side and the right side of the top of the limiting plate, and limiting grooves are evenly formed in the positions, matched with the grooves, of the left side and the right side of the top of the roadbed layer. An expansion pipe is embedded in the inner surface of the limiting groove, limiting bolts are arranged to be in threaded connection with the expansion pipe, the crack is fastened, the phenomenon that the crack is further damaged is avoided, pouring of the crack is facilitated by arranging a pouring groove, the sealing effect of the crack is improved, and through a first protection layer, a second protection layer and a third protection layer, the crack is prevented from being damaged. The road repairing structure is simple in structure and co