Lifting device for building truss

• Main Authors: YU XINGMIN, XUE FENG, BAI HUIMIN, CHEN ZHEN, CHENG JINZHOU, CHEN HONGYING, ZHANG JIANPING, ZHOU HUIPING, DUAN ZHIHUA, ZHANG CHAO, XIN AIHUA, YANG JINGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2012
• Subjects: HAULING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

A lifting device for a building truss comprises a column head sleeving and clamping mechanism, a reinforcing plate (14), hydraulic jacks (10) and a connecting plate (7). The column head sleeving and clamping mechanism consists of two half abutted square cylinder or circular cylinder structures, a plurality of hinges B (17) are arranged at a joint of one sides of the two half abutted square cylinder or circular cylinder structures, the sides of the two half abutted square cylinder or circular cylinder structures are in hinged connection, locking plates are arranged at a joint of the other sides of the two half abutted square cylinder or circular cylinder structures, at least two notches are arranged at the upper end of the column head sleeving and clamping mechanism, so that a supporting plate and the column head sleeving and clamping mechanism are formed integrally, four outer edge surfaces of the square or cross-shaped connecting plate (7) are respectively hinged with four top plates (8) via hinges A (9), re