Concrete sampler for concrete detection

The utility model provides a concrete sampler for concrete detection. The concrete sampler for concrete detection comprises a sampling barrel, a rotating shaft slidably penetrating through the top end of the sampling barrel, a clamping ring and a sliding ring symmetrically in interference fit with the outer wall of the rotating shaft, a motor welded to the top end of the rotating shaft, a cross-shaped groove formed in the bottom end of the rotating shaft, and a distance adjusting support welded to the top face of the sampling barrel. A limiting lantern ring is welded to the end, far away from the threaded bolt, of the pull rod; a limiting bearing on the inner wall of the limiting lantern ring is connected with a threaded rotating shaft; the top end of the threaded rotating shaft is fixedly connected with a cross-shaped convex block; and the outer wall of the threaded rotating shaft is in threaded connection with a soil scraping plate. The device avoids the problem that an existing device is tedious, complex a