Special swivel joint for aircraft refueling hard pipe

• Main Authors: LIANG CHEN, JIA YONGLE, DUAN ZHIHE, QU QING
• Format: Patent
• Language: Chinese; English
• Published: 12.12.2023
• 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 relates to a special swivel joint for an airplane refueling hard pipe, which consists of a swivel body, an inner swivel body, a ball roller, a cylindrical roller, a sealing ring, a butyronitrile framework oil seal, an end face sealing gasket, a screw plug and a screw plug sealing gasket, a ball roller, a cylindrical roller, a sealing ring and a butyronitrile framework oil seal are arranged between the inner rotary body and the outer rotary body, the butyronitrile framework oil seal and the sealing ring are located at the two ends, the ball roller and the cylindrical roller are located in the middle, a plug screw is installed on the outer rotary body, and a plug screw sealing gasket is arranged between the plug screw and the outer rotary body. And the screw plug is tightly connected with the ball roller. The rotary joint has the advantages of good sealing performance, pressure resistance, small rotation resistance, simple structure and reliable connection. 本实用新型涉及一种飞机加油硬管专用回转接头，由回转体、内回转体、球滚子、