Detachable double-locking riveting dismounting method and pulling rivet

US10081049B2 · kind B2 · utility

Assignee

• MEISHAN CRRC FASTENING SYSTEM CO., LTD · CN

Inventors

• Yu-Ching Liu · Jinshanmian, TW
• Kai Fu · Palo Alto, US
• Shuping Pan · Sichuan, CN
• Fangnian Hu · Sichuan, CN
• Yang Liu · Lo Wu, CN
• Yunlong Jia · Sichuan, CN
• Guanglian Xiong · Sichuan, CN
• Xiangyun Zhao · San Jose, US
• Guangcheng Dai · Shanghai, CN
• Xu He · Beijing, CN

Key dates

• Filing date: Mar 9, 2015
• Grant date: Sep 25, 2018
• Expiry date: Feb 3, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B19/1054
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The invention discloses a detachable double-locking riveting dismounting method and a pulling rivet. A lantern ring comprises a thin-wall hook section, a thick-wall locking section and a lantern ring head with an annular step from front to back. The rivet comprises a rivet head of an annular groove matched with the hook section, a front polish rod section, a knurling section matched with the locking section, a separating groove, a rear polish rod and a tail annular groove section from front to back. Double riveting is used by inserting the rivet and lantern ring from both sides; after riveting, the locking section and knurling section form radial locking, and the hook section is buckled to form axial locking. Simple detaching tools (e.g. front snap ring and center cylinder) are equipped to dismount rivets rapidly.