Road and bridge crack reinforcing structure

The invention provides a road and bridge crack reinforcing structure which comprises a roadbed and a top plate, the top plate is arranged in the roadbed, a waterproof plate is installed at the top end of the top plate, a waterproof structure is arranged in the middle of the two sides in the waterproof plate, clamping grooves are formed in the positions, close to the two sides of the waterproof plate, of the top end in the roadbed, two through holes are formed in the middle positions of the two sides of the interior of the top plate, and a fixing structure is arranged below the side, away from the through holes, of the interior of the top plate. Sliding rods are driven into the two sides of a crack, then the top plate is pressed downwards and firmly, meanwhile, a second drill bit is inserted into the roadbed, then a connecting rod is pulled to press a clamping rod inwards, the clamping rod and a fixing block are fixed, and finally a rotating head is rotated, so that a threaded block drives the connecting rod t