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. 03, 2014
Filed:
Jun. 24, 2010
Huimin Liu, Hunan, CN;
Munan Liu, Hunan, CN;
Xin Zhang, Hunan, CN;
Abstract
A counterweight loading and unloading device and a movable crane have a freestanding pallet () with two ends whose upper end faces are used for holding a counterweight (). The two ends of the freestanding pallet () are both equipped with a cavity, and at least one telescopic oil cylinder (, and) is provided in the cavity. A fixed end of the telescopic oil cylinder is fixed with the freestanding pallet (), and a telescopic end of the telescopic oil cylinder is coupled with a pallet lifting mechanism for lifting the freestanding pallet. The device is not limited by a planar space of a vehicle frame and a turntable height of the movable crane. An integral dimension of the movable crane is not increased, thus preventing integral dimension of the movable crane from exceeding a road traveling standard. The structure of the device is more compact, and the telescopic oil cylinder plays a role of the counterweight, thus enabling stress of the turntable to be more reasonable.