Space large-scale integrated high-storage stretching mechanism

The invention discloses a space large-scale integrated high-storage stretching mechanism, and particularly relates to the technical field of aerospace. Comprising a bearing plate, an upper center force bearing cylinder, a supporting truss, a lower center force bearing cylinder, a stacking triangular frame, a folding connecting rod, a driving hinge, a slow release assembly, a pressing rod and a firework nut, the upper center force bearing cylinder is connected between the bearing plate and the supporting truss, and the supporting truss is provided with a supporting ring; the lower central bearing cylinder is provided with a fixing plate; the folding connecting rods are rotationally connected to the stacking triangular frame, the free ends of the two folding connecting rods are rotationally connected, and the slow release assembly is used for slowly releasing the folding connecting rods; the pressing rod is arranged on the stacking triangular frame in a penetrating mode, and a disc spring is connected between t