Highway engineering deflection detection device

The utility model relates to the technical field of pavement detection equipment, and discloses a deflection detection device for highway engineering, which comprises a Beckman beam, a lifting moving mechanism for adjusting the height of the Beckman beam is arranged below the Beckman beam, a measuring module is mounted on one side wall of the Beckman beam, and the lifting moving mechanism is positioned on one side of the measuring module. The lifting moving mechanism comprises a base, a bracket, a first hinge seat, a second hinge seat, a threaded rod, a first sliding block, a second sliding block, a first hinge rod, a second hinge rod, a first connecting rod and a second hinge rod, the first hinge seat is connected with the upper surface of the base, the first hinge seat is hinged to the first hinge rod, and the second hinge seat is connected with the lower surface of the bracket; the second hinge rod is hinged to the second hinge seat, and the first connecting rod and the second connecting rod are hinged to