Relatively put up for experiments

The utility model relates to a relatively put up for experiments includes: the base still includes: rotor support shaft, rotor support shaft's bottom is fixed on the base, rotor support shaft is multistage retractable rotor support shaft, is connect by many radical axis pipe box to form, and the outer axial of following on every side of every radical axis pipe is to there being a recess to relative movement takes place between restriction central siphon and the central siphon, the swinging boom, the rotatable formula of the one end ground of swinging boom sets up rotor support shaft's top, the swinging boom sets up with rotor support shaft is perpendicular, and the swinging boom is provided with many, the clamping part is connected detachablely the other end of swinging boom. The utility model discloses not unidimensional clamping part can need to be changed according to the big small -size of the laboratory?glassware of centre gripping or experiment article to can adjust the length of rotor support shaft's h