Rolling type anti-collision device for highway bridge

The utility model provides a rolling type anti-collision device for a highway bridge. A rolling type anti-collision device for a highway bridge comprises a base; the rolling mechanisms are all installed on the base, any rolling mechanism comprises a fixing rod, a first spring, a sleeve, a plurality of balls and a roller, the fixing rod is installed at the top of the base in a threaded mode, the first spring is arranged on the fixing rod in a sleeving mode, the sleeve is arranged on the fixing rod in a sleeving mode, and the roller is arranged on the sleeve. The bottom end of the first spring is fixedly connected with the base, the fixing rod is sleeved with the sleeve, the balls are movably embedded in the inner wall of the sleeve, the outer walls of the balls make contact with the fixing rod, and the outer wall of the sleeve is fixedly sleeved with the roller. The rolling type anti-collision device for the highway bridge has the advantages that the contact area can be reduced when a vehicle collides, frictio