Thickness detection device for anti-corrosion layer of pipeline

The invention discloses a pipeline anti-corrosion layer thickness detection device which comprises a lower clamping seat, a lifting base is fixedly arranged on the right end face of the lower clamping seat, a lifting seat is arranged in the lifting base, and a detection assembly used for measuring the thickness of a pipeline anti-corrosion layer is arranged on the left side of the lifting seat. A pipeline is clamped through the upper clamping base and the lower clamping base, meanwhile, the threaded rod is driven by the lifting base to be automatically aligned with the center of the pipeline, the measurement precision is guaranteed, the rolling balls move along the inner wall of the pipeline, the thickness condition of an anti-corrosion layer of the pipeline can be transmitted to the hinge base through the two rolling balls, and the measurement precision is improved. A recording pen is used for drawing on paper on the periphery of the winding drum, so that the thickness value of the pipeline anti-corrosion la