Test tube rack capable of inclining test tubes

The test tube rack comprises a main body structure, the main body structure comprises a bottom plate, a first arc-shaped rod and a second arc-shaped rod are fixed to the upper surface of the bottom plate at equal intervals, and scale blocks are fixed to one end face of the second arc-shaped rod at equal intervals; angle adjusting structures in sliding fit with the first arc-shaped rods are fixed to the tops of every two adjacent first arc-shaped rods and second arc-shaped rods through adjusting bolts. The angle adjusting structure comprises an arc-shaped plate, side plates are fixed to the two side faces of the arc-shaped plate, two arc-shaped clamping plates matched with the first arc-shaped rod and the second arc-shaped rod are fixed to the surfaces, away from the arc-shaped plate, of the side plates, and a pointer matched with the scale block is fixed to one side face of one arc-shaped clamping plate. By using the main body structure and the angle adjusting structure, the problem that a plurality of groups