针对快装箱在起吊过程中的受力情况，利用叠加法及三角级数法建立了快装箱顶盖力学模型，研究了横向载荷与挠度及转角之间的关系，得到了顶盖受力时的挠度表达式及转角表达式，为快装箱结构设计计算提供一定的技术理论依据。

According to the force condition of quickly assembling box in hoisting process, a mechanical model of quickly assembling box cover was established by using superposition method and trigonometric series. The relationship between horizontal load and deflection and rotation angle was studied. The deflection and rotation angle expressions when force is acting on the cover were obtained. The purpose was to provide reference for structure design and calculation of quickly assembling box.