Disposable cuvette cover

The utility model belongs to the technical field of experimental measuring instruments, and particularly relates to a jettisonable cuvette cover which comprises an inner cover and an outer cover, at least two first cavities are formed in the inner cover, the inner wall of the outer cover is fixedly connected with the outer wall of the inner cover, the top of the outer cover is slidably connected with pressing blocks corresponding to the first cavities, and the top of the outer cover is slidably connected with the pressing blocks. The pressing block is located above the first cavity, an extrusion space is reserved between the pressing block and the inner cover, the first cavity is conical, the conical tip is inclined downwards, and the conical opening is communicated with the interior of the cuvette; the upper end of the inner cover is provided with through holes with the number corresponding to that of the first cavities, a pushing rod used for force transmission is arranged in each through hole, the upper en