Horizontal bar and parallel bar fitness auxiliary device

The invention relates to the technical field of fitness equipment, and discloses a single-bar and parallel-bar fitness auxiliary device which comprises a base, a first side frame, a second side frame and a booster pedal, and the first side frame and the second side frame are distributed in parallel at intervals and fixed to the base; the two side frames are the same in structure and each comprise two supporting columns, a longitudinal beam and a lifting rod, the two supporting columns are fixedly connected with the base, and the longitudinal beam is fixedly installed at the upper ends of the two supporting columns; the lifting rods are installed on the two supporting columns in a sliding mode, the boosting pedal is connected with the lifting rod of the first side frame and the lifting rod of the second side frame, and elastic belts are further connected between the longitudinal beam of the first side frame and the lifting rod of the first side frame and between the longitudinal beam of the second side frame a