Optimization connecting structure of metal pipe fittings and implementation method thereof

• Main Author: HUANG, QI DA
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2016
• Subjects: BLASTING; CYCLE AXLE SUSPENSIONS; CYCLE FRAMES; CYCLE SIDE-CARS, FORECARS, OR THE LIKE; CYCLE STEERING DEVICES; CYCLES; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PIPES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The invention relates to the technical field of metal pipe fitting connection, in particular to an optimization connecting structure of metal pipe fittings and an implementation method thereof. The structure comprises the pipe fittings, multi-functional plugs arranged in inner holes in the tail ends of the pipe fittings, and connecting pieces connecting the pipe fittings. The peripheries of the connecting portions of the pipe fittings are provided with radial through holes, and a center connecting line of the through holes is parallel to the end faces of the pipe fittings. Each multifunctional plug comprises a plug body at the tail end, a groove or through hole in the middle, a large positioning step and a small positioning step which are located at the top end, wherein the outer end face of the large step is provided with an axial through hole or through groove communicated with the groove. Each connecting piece is of a casting-forging composite structure, and inner and outer layers of metal rings and a plur