Novel mycobacterium turbidimetric tube

The utility model discloses a novel mycobacterium turbidimetric tube. The device comprises a pipe body, a sealing cover and a large-particle sinking device, an operation hole is formed in the bottom surface of the sealing cover; a clamping hole is formed in the inner side wall of the sealing cover; the large-particle bottom sinking device comprises a filter screen, a screen frame, clamping strips,springs and an operation assembly, guide rings are fixed to the screen frame, the clamping strips penetrate through the guide rings, push blocks are fixed to the side walls of the clamping strips, the clamping strips are sleeved with the springs, one ends of the springs abut against the push blocks, the other ends of the springs abut against the guide rings, and plugs used for plugging the clamping holes are arranged in the clamping holes. An operator moves the net rack and the filter screen downwards, the filter screen presses large-particle suspended solids in the reagent down to the bottomof the bottle, waiting fo