Rectangular butt-welded seam steel pipe for communication tower

Abstract

The invention discloses a rectangular butt-welded seam steel pipe for a communication tower. The rectangular butt-welded seam steel pipe comprises at least two steel pipes sequentially arranged in the axial direction of the steel pipes; the adjacent steel pipes are welded at a butt part; rectangular grooves are formed in one of the two ends of each steel pipe in the axial direction, and rectangular lug bosses are arranged at the other end of the steel pipe; the rectangular grooves and the rectangular lug bosses are uniformly distributed in the circumferential direction of each steel pipe; the rectangular lug bosses at a connecting part of any two adjacent steel pipes can be inserted into the rectangular grooves; a rectangular connector at the connecting part of the two adjacent steel pipes is welded in the edge direction of the connector. According to the technical scheme of the rectangular butt-welded seam steel pipe, the weld seam length is increased, the welding strength is increased, the tightness is good, the overall strength is high through the meshing of the grooves and the lug bosses, the assembling is simple and convenient, the working efficiency is improved, and the appearance is aesthetic; the rectangular butt-welded seam steel pipe is safer and more reliable, simple in processing, low in dimensional precision requirement and convenient to maintain, and lowers the cost.

Description

technical field [0001] The invention relates to the field of communication towers, in particular to a rectangular butt welded steel pipe for communication towers. Background technique [0002] The communication tower is composed of multiple steel pipes welded up and down along the axial direction. In the prior art, the welding of the upper and lower steel pipes in the communication tower adopts the traditional butt weld method, and the welding ends of the upper and lower steel pipes use parallel joints and weld each other to form a butt weld parallel to the foundation. The length of the weld seam is the circumference length of the steel pipe, the length of the weld seam is limited, and the welding strength is not high. The connecting steel pipes on both sides are connected with flat openings, and the tightness is not high. [0003] There are related patents in the prior art, such as patent number "201320335709.8", named "Waved butt welded steel pipe tower", the content of ...

AI Technical Summary

Problems solved by technology

[0004] Although this technical solution can increase the length of the weld seam and improve the welding strength; but there are still defects: the weld joint is set in a wave shape, because the steel pipe is circular, its processing is difficult, the processing cost is high, and the processing time is long. The requirements for matching dimensional accuracy are high, and it is prone to scrapping or reprocessing due to misalignment, low work efficiency, and complicated operation process, etc.

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