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:
Jun. 15, 2021
Filed:
Oct. 28, 2016
China Petroleum & Chemical Corporation Ltd., Beijing, CN;
Wei Zou, Xinjiang Uygur Autonomous Regio, CN;
Menghua Zhang, Xinjiang Uygur Autonomous Regio, CN;
Lian Liu, Xinjiang Uygur Autonomous Regio, CN;
Bowei Wang, Xinjiang Uygur Autonomous Regio, CN;
Lingyun Fan, Xinjiang Uygur Autonomous Regio, CN;
Jin Xie, Xinjiang Uygur Autonomous Regio, CN;
Shengfu Zhou, Xinjiang Uygur Autonomous Regio, CN;
Wenxia Li, Xinjiang Uygur Autonomous Regio, CN;
Kun Yang, Xinjiang Uygur Autonomous Regio, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION LTD., Beijing, CN;
Abstract
A mechanical-hydraulic integrated releasing device includes an upper joint, a lower joint and a pawl. The upper joint and the lower joint are respectively connected to two ends of the pawl. An outer side of the pawl is sleeved with a releasing sleeve capable of moving in an axial direction of the pawl. A step is arranged on an outer wall of a ratchet of the pawl. A groove matching the step is arranged on an inner wall of the releasing sleeve, and the step and the groove cooperate to limit the pawl. A releasing sleeve upper portion is arranged between the releasing sleeve and the upper joint, one end of the releasing sleeve upper portion is inserted into the releasing sleeve, and the other end is sleeved on an outer portion of the upper joint and connected to the upper joint via a start pin.