Interior expanding quick coupling for pipeline

• Main Authors: FANG WEI, ZHANG JUNAN, SHEN HELIN
• Format: Patent
• Language: Chinese; English
• Published: 03.04.2018
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses an interior expanding quick coupling for pipeline, including pneumatic quick lock pin, still include the tapering screw thread core pipe that is connected with pneumatic quick lock pin, tapering screw core pipe is gone up the cover and is equipped with elasticity claw type flange seat and lock nut, lock nut establishes and puts the department at elasticity claw type flange seat upper end head position, be equipped with tapering screw core outside of tubes sheathing body on the elasticity claw type flange seat, be equipped with a plurality of peripheral ring form recesses on tapering screw thread core outside of tubes sheathing body's the outer peripheral face, be equipped with outer loop O shape sealing washer in the per pass peripheral ring form recess, it is equipped with upper end inner wall ring groove to contact a position department at elasticity claw type flange seat upper end internal face and lock nut, be equipped with O shape sealing member on theinner wall ring groove of