Hysteroscope protective sleeve with anti-falling function

The utility model discloses a hysteroscope protective sleeve with an anti-dropping function, which relates to the technical field of hysteroscopes, and comprises a probing tube and a sampling component arranged at one end of the probing tube, and a protective component is arranged in the middle of the outer wall of the probing tube. When the probing tube of the hysteroscope is drawn out, the probing tube passes through an inner cavity of an expansion barrel arranged on the periphery of the probing tube in a wrapping mode, a wiping cotton layer wipes the periphery of the outer wall of the probing tube passing through the inner cavity, liquid brought out by the probing tube can be stored in the inner cavity of the expansion barrel, and therefore the probing tube of the hysteroscope can be conveniently taken out. By means of the arrangement, the sanitary condition of the hysteroscope during biopsy can be improved, in order to improve the placing stability of the expansion barrel, the adsorption disc can be adsor