The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Apr. 16, 2025
Meishan Crrc Fastening System Co., Ltd., Sichuan, CN;
Shuai Zhang, Sichuan, CN;
Wei Li, Sichuan, CN;
Long Guo, Sichuan, CN;
Jun Mao, Sichuan, CN;
Mingyang Luo, Sichuan, CN;
Zhiwei Hu, Sichuan, CN;
Xuehui Liao, Sichuan, CN;
Deke Zhou, Sichuan, CN;
Biao Li, Sichuan, CN;
Shaoqing Guo, Sichuan, CN;
Tao Yang, Sichuan, CN;
Zheng Qiao, Sichuan, CN;
Jin Peng, Sichuan, CN;
Zongyang Zuo, Sichuan, CN;
MEISHAN CRRC FASTENING SYSTEM CO., LTD., Sichuan, CN;
Abstract
An electro-hydraulic riveting tool has a riveting working head and a pump body. The riveting head consists of a cylinder block, a hollow piston shaft, and a rear end cover. The cylinder block and the rear end cover jointly define a hydraulic cavity. Inside the cylinder body, a first oil passage and a second oil passage are formed. On the pump body, a third oil passage and a fourth oil passage are provided. A broken-nail guide tube is coupled to the riveting working head. The rear end of the broken-nail guide tube is in communication with a nail-collecting box. An adapter plate is sleeved around the outer wall of the broken-nail guide tube. The adapter plate contains an intermediate oil passage with a first and a second intermediate oil passage. An accommodation groove is formed in the adapter plate, and a shock-absorbing joint is housed within this groove.