Improved integrated double-bag type expansion anchor rod and process method

The improved integrated double-bag type expansion anchor rod comprises a main body mechanism and an expansion mechanism, the main body mechanism comprises a top plate and a bottom plate, a sleeve is fixedly connected between the top plate and the bottom plate, an outer bag is fixedly installed on the outer wall of the sleeve, and an inner bag communicated with the outer bag is arranged in the outer bag; the expansion mechanism comprises a rotating cylinder and a plurality of expansion rods; a rebar rod is arranged in the rotating cylinder, the bottom end of the rebar rod extends out of the rotating cylinder and is detachably connected with the bottom end of the rotating cylinder through a fixing assembly, and a sliding ring is slidably connected to the outer wall of the rotating cylinder; a plurality of expansion rods are arranged in the inner bag in the circumferential direction, the bottom ends of the expansion rods are obliquely arranged towards the outer bag, the bottom ends of the expansion rods are hing