Detection device adaptive to pipe diameter of pipeline

The utility model discloses a self-adaptive pipeline diameter detection device, which comprises a shell, the outer side of the shell is provided with a pipeline body, the upper end and the lower end of the shell are respectively provided with a stabilizing mechanism, the shell is movably connected with the inner wall of the pipeline body through the stabilizing mechanisms, and the inner side of the shell is provided with a matching chamber. By the adoption of the structure, the electric push rod is controlled through the PLC, the scraper is pushed to the position of the inner wall of the pipeline body, and meanwhile after the electric push rod pushes up the scraper, due to the fact that the sliding barrel at the output end of the electric push rod is connected with the inner sliding plate through the second spring, the scraper can be attached to the inner wall of the pipeline; then the rotating circular pipe is arranged in the matching chamber, the motor in the matching chamber is used for being in linkage wi