Sport body building device

The utility model discloses a sport body building device, it contains slip track, slider, piece and locating part trackslip. The slider is limited reciprocal displacement on the slip track, and the slider contains at least one fixed orifices and pin joint portion. Piece and slider interlock trackslip. The piece that trackslips contains a plurality of locating holes, pivot and virtual extension line. The pin joint pivot of pin joint portion. The pivot of virtual extension line perpendicular to, and the virtual extension line and the crossing contained angle of orbital extending direction that slides. The locating part runs through one of them locating hole and fixed orifices, makes the piece that trackslips follow slip track slope contained angle and fix a position. Borrow this, utilize the locating part to run through specific position's locating hole and fixed orifices, the location that can incline steadily that it trackslips to make. And can make a free swing that trackslips through the cooperation of arc track and locating part. In addition, the focus of the pin joint portion track of more pressing close to to slide, not only stable but also safety.