Building material strength detection device

The utility model discloses a building material strength detection device and relates to the technical field of building material strength detection. The device comprises a base and a detection head, an electric telescopic rod is fixedly arranged on the side, close to the base, of a connecting plate, a first threaded rod penetrates through a supporting plate in a threaded mode, a crank is fixedly arranged at one end of the first threaded rod, and a clamping plate is rotationally installed at the end, away from the crank, of the first threaded rod. The crank drives the first threaded rod to rotate, so that the first threaded rod moves on the supporting plate, and the first threaded rod drives the clamping plate to move, so that the clamping plate is attached to the building material, the material can be prevented from shifting in the detection process, and the purpose of keeping stability is achieved; and through rotation of the sleeve, the sleeve drives the second threaded rod to rotate, so that the second th