Prefabricated concrete wallboard connecting structure

The utility model discloses a prefabricated concrete wallboard connecting structure, which belongs to the field of concrete wallboards, and comprises a first wallboard and a second wallboard, one side of the first wallboard is fixedly connected with a clamping block, one side of the second wallboard is provided with a clamping groove, the clamping block is matched with the clamping groove, the top of the clamping block is provided with a through groove, and the through groove is matched with the clamping block. Multiple sets of grooves are formed in the through groove, moving blocks are arranged in the grooves, one ends of the moving blocks are connected with limiting blocks, limiting grooves are formed in the inner walls of the clamping grooves, and the limiting blocks penetrate through the clamping blocks and are matched with the limiting grooves; a driving disc at the bottom of a supporting rod slides in a through groove, when the driving disc abuts against an inclined face of the top of a moving block, th