Adjustable tool for pavement deflection detection

The utility model discloses an adjustable tool for pavement deflection detection, which relates to the technical field of pavement detection equipment and comprises a first rod and a second base, the inside of the first rod is slidably connected with a second rod, the bottom of one end of the second rod is provided with a detection head, the outer wall of the first rod is provided with a rotating shaft penetrating through the inside, and the rotating shaft is connected with the second base. A supporting frame is arranged on the outer wall, located on one side of the first rod, of the rotating shaft, and a first base is arranged at the bottom end of the supporting frame. Through the arrangement of the bolt, the check block and the spring, after the bolt is pulled, the bolt drives the check block to move upwards, meanwhile, the check block extrudes the spring to generate compression deformation, when one end of the bolt is pulled away from the second rod, the second rod is pulled, the second rod slides in the g