The utility model relates to the technical field of vacuum devices, in particular to a Meisson
bottle sealing device which comprises a main
machine and a switching
assembly, a partition plate is arranged in the main
machine, a through hole is formed in the partition plate, the through hole is connected with an
exhaust pipe of a
vacuum pump, and an outer surrounding bone and an inner surrounding bone which are concentrically arranged are arranged on the side, located on a sleeve, of the partition plate. The switching
assembly comprises a straight-
barrel-shaped support, the two ends of the straight-
barrel-shaped support can be fixedly inserted into the sleeve, a first opening and a second opening are formed in the two ends of the support respectively, an annular partition plate is arranged in the support, and the first opening and the second opening are located in the two sides of the annular partition plate respectively and can be installed at the
bottle opening of the Meisson
bottle. The first opening is provided with a first sealing structure, and the second opening is provided with a second sealing structure. The device can be matched with the Merson bottles with two different calibers, and when the
bottle cap used for sealing the Merson bottle opening is clamped in the Merson bottle sealing device, the
bottle cap can be withdrawn by hands without the help of a tool, so that the device is convenient and safe to use.