Multifunctional test tube fixing device

The utility model discloses a multifunctional test tube fixing device which comprises a long-strip-shaped adjusting rail strip, wherein a clamping seat and a clamping sheet are arranged on the adjusting rail strip; the clamping sheet is separably connected with the clamping seat; and a test tube fixing part is arranged on the clamping seat. According to the multifunctional test tube fixing device, the whole test tube fixing part can be horizontally and stably moved by an experimenter by utilizing the long-strip-shaped adjusting rail strip as well as the clamping seat and clamping sheet which are arranged on the adjusting rail strip, so that liquid in a test tube is hardly shaken and the experimental requirements of the experimenter are easily met. In addition, the whole test tube can be inserted into a test tube sleeve by the experimenter since the test tube sleeve is tubular, so that the injury to the experimenter, caused by the explosion of the test tube, is effectively avoided. Thus, the safety of the fixi