Lifting appliance for small-sized caisson

• Main Authors: LIU WEI, MA ZHANHE, CHEN BAOMING, MENG QINGCHUN, DING ZHIJUN, MO HAIYANG, PANG ZENGRONG, LI JINGWEI, XUE CHUNGANG, SONG SHUDONG, ZHANG XIANYU, LIU WANKUN, ZHANG YU, LIU YANJIANG
• Format: Patent
• Language: English
• Published: 22.04.2015
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The utility model provides a lifting appliance for a small-sized caisson, relating to the technical field of a dock caisson lifting device. The technical key points are as follows: the lifting appliance comprises a lifting appliance body; the lifting appliance body comprises a quadrangular lifting frame; every two opposite angles of the lifting frame are connected with each other by a steel plate; the lifting frame is provided with a concave hanging plate; the other end of the hanging plate is provided with a lifting hook connected with a lifting hole of the caisson; the outer surface of the lifting hook is provided with an unhooking plate and a secondary hook or a rigging hook of a floating crane; an automatic unhooking function is realized by pulling the unhooking plate arranged on the lifting hook; a hanging rope is arranged at the part at which the lifting frame is connected with the hanging plate; the other end of the hanging rope is also provided with a belaying ring; the caisson is provided with an embedded part provided with a blocking plate at the part connected with the lifting hook, so that the working procedure of manually filling hole is omitted; the lifting frame is capable of determining the position of the lifting hook according to the size of the caisson; automatic hooking can be realized when the lifting hook moves to the lifting hole reserved in the caisson by the calculation for the centre of mass of the lifting hook; in the whole lifting process, the personnel on the ground only need to command or assist the hooking, so that the working procedure of high-place operation is omitted.