The difference between diameter of saw steel pipe and outer diameter of pipe joint is greater than the height of square steel bracket in the middle layer; the height of square bottom bracket is higher than the height of the highest square steel bracket; the height of middle layer of square steel bracket in the bottom is higher than that of square steel bracket; the spiral pipe plant is in the same layer, and the adjacent ends of two steel pipe bit joints are interlaced and arranged along the longitudinal direction of the drill pipe; in two adjacent steel pipes, along the drill pipe. The longitudinal direction of the rod is arranged with two objects far away from each other at the end of the upper and lower drill pipe connection; the outer diameter of the poor thing's drill pipe joint and the steel pipe drill pipe is larger than the height of the highest square steel bracket.


The packaging comprises the top bracket, the bottom of the middle layer and square steel bracket, the bolt of the intermediate adapter, the lower part of the nursing block, the supporting sleeve, the end part and the lower part of the nursing block. The packaging supporting structure of the invention is simple, the carrying capacity is large, the transportation cost is reduced, and the productivity is improved.