Test tube rack capable of rapidly cooling and rotating inclination angle

The utility model discloses a test tube rack capable of rapidly cooling and rotating the inclination angle, which comprises an external test tube rack support, an internal test tube rack and a cooling device, the angle of the internal test tube rack relative to the external test tube rack support is adjustable, the internal test tube rack is rotatably connected with the external test tube rack support, and the cooling device is connected with the internal test tube rack. A locking mechanism is arranged between the internal test tube rack and the external test tube rack, the locking mechanism is used for locking the inclination angle of the internal test tube rack, and a cooling device is arranged at the bottom of the internal test tube rack. The test tube rack can be used as a common test tube rack and can also be used for placing test tubes on inclined planes, solidification of culture media in the inclined plane placing process can be accelerated through the cooling function, and the technical problems that