Testing device for impact detection of building materials

The utility model discloses an impact detection test device for building materials, relates to the related field of impact detection tests, and aims to solve the problem that in the prior art, when an impact main body performs an impact test on the building materials downwards, falling is realized by means of reverse rotation of a shaft driven by a driving motor. When the drop hammer falls, the spring and the rope exert upward traction force on the drop hammer, the downward impact force is difficult to accurately grasp only by adjusting the falling height, and the impact strength of the test block cannot be accurately grasp. Fixed vertical rods are fixedly welded to the four corners of the upper end of the fixed bottom plate, the upper ends of the fixed vertical rods penetrate through the fixed top plate and extend to the upper end of the fixed top plate, the fixed top plate is fixedly welded to the fixed vertical rods, and an upper limiting sliding plate is arranged at the upper end of the fixed top plate an