Trundle fixing piece structure

The utility model discloses a trundle fixing part structure, and relates to the technical field of trundles, the trundle fixing part structure comprises a mounting seat, a fixing seat is arranged at the bottom end of the mounting seat, a roller is rotatably mounted at the bottom end of the fixing seat, a mounting block is fixedly mounted at the top end of the fixing seat, and a mounting groove is formed in the bottom end of the mounting seat; the mounting block is movably connected with the mounting groove in an inserted mode, cavities are formed in the positions, located on the two sides of the mounting groove, of the mounting base, a two-way screw rod is rotatably mounted in the mounting base, movable blocks are rotatably mounted at the two ends of the two-way screw rod, and inserting blocks are fixedly mounted on one sides of the movable blocks; inserting grooves are formed in the two sides of the mounting block, and the inserting blocks are movably connected with the inserting grooves in an inserted mode.