Repeated locking and releasing mechanism of on-orbit load module

The invention relates to a repeated locking and releasing mechanism of an on-orbit load module. The mechanism comprises a lead screw linkage mechanism, a transverse push block, a connecting rod, a longitudinal push block and a locking mechanism, the transverse push block is fixedly connected with the translation end of the lead screw linkage mechanism, and the longitudinal push block and the transverse push block are arranged in parallel; two ends of the connecting rod are rotationally connected with the longitudinal push block and the transverse push block respectively; a locking protrusion is arranged on the side, away from the transverse push block, of the longitudinal push block; a locking groove corresponding to the locking protrusion is formed in the locking mechanism, and the locking protrusion is matched with the locking groove; the transverse push block is driven by the translation end of the lead screw linkage mechanism to translate, and the longitudinal push block is pushedto move back to or toward