| 摘要 |
The present invention relates to a vacuum pump for a vessel stopper, which maximally delays the spoiling of contents in a vessel by completely insulating the inside of a pressure vessel from the outside while vacuumizing the inside of the vessel. The vacuum pump for a vessel stopper comprises: a packing (110) which has a first air hole (115) connected with the vessel; a lifting ball (120) which is placed in the first air hole; a pipe-shaped inlet part (130) which is vertically placed in the top end of the packing (110); a piston (140) which is installed to be vertically lifted along the inlet part (130) and the inlet (A) of the vessel; a valve plate (150) which is coupled to the top end of the inlet part; an elastic member which is installed in the top end of the valve plate inside the piston to apply ascending force to the compressed and descending piston when the piston forcefully descends; and a locking unit (170) which selectively limits the ascending of the forcefully descending piston through the rotation of the piston. |
