Thoracic cavity negative pressure aspirator

The utility model discloses a thoracic cavity negative pressure aspirator which comprises an outer shell, a hook and a limiting piece, the hook is movably arranged at the upper end of the outer shell, the hook is provided with a hanging position and a containing position, the hanging position is arranged below a pile body, the hook is exposed out of the upper end of the outer shell, and the hook is hidden at the upper end of the outer shell in the state of the containing position; the limiting piece is arranged between the hook and the shell and used for limiting the hook to be stably stopped at the hanging position and the containing position. Due to the fact that the movable hook is arranged at the upper end of the shell, the hook can move to the hanging position used for hanging and the storage position used for hiding, and the hook can be stably stopped at the hanging position and the storage position under the action of the limiting piece, the hook cannot move at will, and hanging use and storage of the