Portable electric drainage device of infusion apparatus

The utility model discloses an electric drainage device of a portable infusion apparatus. Bottom plate, a protective cover is fixed to the upper side of the bottom plate. A vacuum pump and a storage battery are fixed on the bottom plate corresponding to the interior of the protective cover; a socket corresponding to a charging socket of the storage battery is formed in the side wall of the protective cover; one end of the vacuum pump fixedly communicates with one end of an exhaust pipe; the other end of the exhaust pipe is fixedly communicated with one end of a silencer; the other end of the silencer fixedly penetrates through the side wall of one side of the protective cover; the other end of the vacuum pump is fixedly communicated with a negative pressure regulator, and a shaft rod of the negative pressure regulator penetrates through the side wall of one side of the protective cover and is fixed to the center of one end of the rotary knob, and the utility model relates to the fieldof infusion apparatus equ