The invention discloses a lightweight attachment joint convenient to assemble and lift, and belongs to the technical field of hoisting machinery. The attachment joint is a cuboid frame composed of four identical vertical chord members, an upper layer of transverse web member set, a middle layer of transverse web member set, a lower layer of transverse web member set and vertical web member sets, wherein the upper layer of transverse web member set, the middle layer of transverse web member set and the lower layer of transverse web member set are hinged to the vertical chord members, and the vertical web member sets are arranged between every two adjacent vertical chord members and between every two adjacent layers of transverse web member sets. A plurality of layers of horizontal reinforcing web member sets are arranged in an inner cavity of the upper half section or the lower half section of the cuboid frame in a hinged mode, and vertical reinforcing rib plates are arranged on the inner side faces of the upper half sections or the lower half sections of the four vertical chord members. Each horizontal reinforcing web member set is a cross-shaped horizontal supporting frame formed in the mode that the near ends of four horizontal inclined supporting rods are hinged together through near-end connecting plates and hinged bolts, and the far ends of the horizontal inclined supporting rods are hinged to the upper half sections or the lower half sections of the corresponding vertical chord members through far-end connecting plates and hinged bolts. The lightweight attachment joint is low in weight, low in material consumption, low in cost, large in attachment point rigidity, capable of effectively reducing welding and convenient to assemble rapidly and lift safely.

本发明公开一种便于组装和起吊的轻量级附着节，属于起重机械技术领域。所述附着节是由四根相同的立弦杆、与立弦杆铰接相连的上中下三层横腹杆组、布置在每相邻两根立弦杆与每相邻两层横腹杆组之间的立面腹杆组构成的长方体框架，在长方体框架的上半段或下半段内腔中以铰接方式设置有若干层水平加强腹杆组，在四根立弦杆的上半段或下半段内侧面均设置有竖向加强筋板；水平加强腹杆组是由四根水平斜撑杆通过近端连接板及铰接螺栓将各近端铰接结合在一起、通过远端连接板及铰接螺栓将各远端分别与对应立弦杆的上半段或下半段铰接相连构成的十字型水平支撑架。本发明重量轻、耗材低、成本少、附着点刚度大、能有效减少焊接、便于快速组装和安全起吊。