Extension bar used on portal frame

• Main Author: LU YALIANG
• Format: Patent
• Language: Chinese; English
• Published: 17.03.2020
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

The lengthening bar comprises a threaded rod, the upper end of the threaded rod is in threaded connection with an upper hanging ring, and the lower end of the threaded rod is in threaded connection with a lower hanging ring. The extension bar is mainly used on the portal frame; an upper lifting ring of the extension bar is connected with a hoist trolley on the portal frame; a lower lifting ring ofthe extension bar is connected with a vacuum suction crane or directly connected with goods; the threaded rods are detachably connected between the upper hoisting ring and the lower hoisting ring, the threaded rods with different lengths can be replaced according to needs, and if the upper hoisting ring and the lower hoisting ring or the threaded rods are damaged, only part of parts need to be replaced, overall replacement is not needed, and more cost is saved. 本实用新型公开了一种龙门架上使用的加长杆，包括螺纹杆，螺纹杆上端螺纹连接上吊环，螺纹杆下端螺纹连接下吊环。本实用新型的加长杆主要用于龙门架上，加长杆的上吊环与龙门架上的葫芦小车连接，加长杆的下吊环与真空吸吊机或者直接与货物连接，大大降低了可吊装的高度限制，而且螺纹杆可拆卸连接于上下吊装环之间，可以根据需要更换不同长