High-torsion-resistance thread sealing buckle and machining method thereof

• Main Authors: ZHANG JINGANG, CHAO LINING, YANG XIAOLONG, LI YUANZHENG, GAO MENGZHAO, YUAN QINGYING, WANG QIANG, LIU YUN, ZHOU XINYI, TANG JIARUI, HE SHILEI, YU HAN, ZHANG CHAO
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2023
• Subjects: BLASTING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MACHINE TOOLS; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PERFORMING OPERATIONS; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; THREAD CUTTING; TRANSPORTING; WEAPONS; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTIONTHEREWITH

The invention belongs to the technical field of oil casing machining, and particularly relates to a high-torsion-resistance thread sealing buckle and a machining method thereof. A high-torsion-resistance thread sealing buckle type comprises a female end and two male ends, female threads and an opposite vertex section are arranged on the inner surface of the female end, the opposite vertex section is located in the middle of the interior of the female end, the female threads are divided into two symmetrical sections by the opposite vertex section, inner opposite vertex shoulders are arranged at the left end and the right end of the opposite vertex section respectively, and male threads are arranged on the outer side surfaces of the male ends. The male thread is matched with the female thread, and the end face of the male end abuts against the inner abutting circular bead. The threaded structure without a sealing surface is adopted, the threaded structure has the advantages of being high in threaded connection