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:
Jan. 09, 2018
Filed:
Jan. 20, 2016
Citic Dicastal Co., Ltd, Qinhuangdao, CN;
Chunhai Liu, Qinhuangdao, CN;
Zhigao Yin, Qinhuangdao, CN;
Debin Tang, Qinhuangdao, CN;
Jinqi Lv, Qinhuangdao, CN;
Zhipeng Li, Qinhuangdao, CN;
Aiguo Zhang, Qinhuangdao, CN;
Zhihua Zhu, Qinhuangdao, CN;
Yongning Wang, Qinhuangdao, CN;
Changhai Li, Qinhuangdao, CN;
CITIC Dicastal CO., LTD, Qinhuangdao, CN;
Abstract
The present invention provides an air tightness detection device for an aluminum alloy wheel hub, which is characterized by precision air pressure sensors, a lower clamp, a cone cylinder pressure plate, air pipes, a pressure plate, guide posts, an air inlet pipe, and a compressed gas control and detection system. A technical solution of the present invention has the following advantages that the cone cylinder pressure plate of the detection device reduces the space of an inner cavity of the wheel hub to further reduce inflating volume, thereby increasing detection efficiency; the characteristics of readily availability for preparation, no pollution and low cost are achieved by taking compressed air as a leakage indication gas.