Steel pipe end and hollow ball welding construction structure

Abstract

The utility model discloses a welding construction structure for a steel pipe end and a hollow ball. The welding construction structure comprises a hollow ball head; the short liner tube is fixedly connected to the periphery of the hollow ball head; the steel pipe is sleeved outside the short liner pipe; and the embedded welding seam layer is embedded in the periphery of the hollow ball head and is in contact with the root of the short liner tube and the shaft end face of the steel tube. One part of the bending deflection of the steel pipe presses the short lining pipe to generate deflection deformation, the deflection deformation is indirectly transmitted to the embedded welding seam layer, the other part of the bending deflection of the steel pipe is directly transmitted to the embedded welding seam layer, and the embedded welding seam layer is embedded in the groove outside the hollow ball head, so that the embedded welding seam layer can transmit the bending deflection load to the hollow ball head for overall dispersion; the problems that the force of bending deflection is tangent to the outer surface of the hollow ball head, a welding layer tangentially welded to a butt welding seam is prone to being torn, and the stability of fixed connection between a steel pipe and the hollow ball head is poor are solved.