Angle-adjustable multipurpose test tube rack

The utility model discloses an angle-adjustable multipurpose test tube rack which comprises a bottom plate, a groove is formed in the upper end of the bottom plate, a bearing plate is arranged above the bottom plate, one end of the bearing plate is hinged to the inner walls of the two sides of the groove, and a lifting mechanism is arranged between the other end of the bearing plate and the bottom plate. A middle plate and a top plate are arranged above the bearing plate, and a plurality of test tube placing holes are formed in the middle plate and the bottom plate. According to the test tube rack, the angle of the test tube rack composed of the bearing plate, the middle plate and the top plate can be adjusted through the lifting mechanism, so that different experiment requirements can be met, and the top plate, the middle plate, the bearing plate and the bottom plate can be folded together, so that the occupied space of the test tube rack during storage can be greatly reduced; and a plurality of folded test