Expanding support trolley for clinical maintenance of PICC (Peripherally Inserted Central Catheter)

The utility model discloses an expansion support trolley used for clinical maintenance of PICC, and relates to the technical field of medical sickbeds, the expansion support trolley comprises a base and a bed board, the upper end face of the base is fixedly connected with a plurality of supporting frames, and one side of the outer wall of the base is fixedly connected with a first servo motor; a fixing block is fixedly connected to one side of the position, horizontally corresponding to the first servo motor, of the base, a threaded rod is rotationally connected to the inner side of the fixing block, the other end of the threaded rod is fixedly connected with the output end of the first servo motor, and a pair of threaded grooves rotating reversely is formed in the outer wall of the threaded rod. The threaded rod is driven to rotate through the output end of the first servo motor, the bottom support indirectly drives the operation table to move to the two sides of the bed board until the operation table is at