Demoulding device for concrete blow-off pipe

The utility model relates to the technical field of concrete prefabricated parts, in particular to a demoulding device for a concrete blow-off pipe, which comprises a pipe body mould, two groups of bases symmetrically arranged at the bottom of the pipe body mould, and operating cavities arranged in the bases, and is characterized by comprising a rotating rod, a fixed plate, a plurality of fixed blocks and a plurality of fixed blocks, a side plate is fixedly arranged on the outer side of the fixing plate, a throwing rod is movably arranged on the outer side of the side plate, and a knocking ball sleeves the throwing rod and is used for knocking the pipe body mold; the sleeve groove is located in the knocking ball, a preset ring is arranged in the sleeve groove, a positioning groove is formed in the preset ring, and a preset groove is formed in the inner side of the sleeve groove; according to the demolding device for the concrete blow-off pipe, the rotating rod arranged in the demolding device is matched with