Deflection measuring device for road detection

The utility model provides a deflection measuring device for road detection, which comprises a base, a front lever and a contraction mechanism, the contraction mechanism is arranged above the base, a moving piece is arranged above the contraction mechanism, a dial indicator is movably mounted on the moving piece, a connecting piece is fixedly mounted at the right end of the front lever, and the right end of the front lever is fixedly connected with the connecting piece. A support is fixedly installed below the right end of the front lever, and the end, away from the front lever, of the connecting piece is fixedly connected with a rear lever. According to the utility model, through the arrangement of the contraction mechanism, when deflection measurement needs to be carried out, the elastic buckle is pressed, so that the compression spring is compressed until the top end of the elastic buckle retracts into the elastic hole, and then the movable rod slides upwards along the sliding groove of the fixed column un