Preparation mechanism for low-shrinkage C60 steel tube concrete

The utility model belongs to the technical field of recycled concrete, and discloses a preparation mechanism for low-shrinkage C60 steel tube concrete, the preparation mechanism comprises a water guide pipe structure and a mixer main body, the water guide pipe structure is fixedly connected to the outer end of the mixer main body, and the water guide pipe structure is in through connection with the internal space of the mixer main body; the water guide pipe structure comprises a lock catch, a rotating sleeve, an operating rod, a first pipe body, a first flange, a second flange and a second pipe body, the side end of the first pipe body and the outer end of the first flange are fixedly connected together, the outer end of the second flange is fixedly connected to the side end of the second pipe body, the lower portion of the lock catch and the outer end of the rotating sleeve are fixedly installed together, and the lower portion of the rotating sleeve is fixedly connected with the operating rod. The lower port