Overlength lightweight metal roof boarding lifts by crane connecting device

The utility model discloses an overlength lightweight metal roof boarding lifts by crane connecting device, including steel truss balance beam, adjustable packing steel frame and connecting device, steel truss balance beam includes upper chord, diagonal bracing and lower chord, and adjustable packing steel frame includes steel frame, moving casing and compression screw, and the steel frame includes two parallel arrangement's horizontal pole and pole setting, and connecting device includes adjusting sleeve, adjusting screw, fixed square pipe, mounting sleeve, bottom plate, basket of flowers screw rod and wire rope, and on mounting sleeve located horizontal web member, wire rope was connected with the upper portion horizontal pole. The utility model discloses satisfy the hoist and mount requirement to metal roof board for metal roof board keep balance lifts by crane, operates succinctly not loaded down with trivial detailsly, improves the security, lifts by crane in large quantityly simultaneously, and metal ro