The invention relates to a red
wine fresh-keeping device and a
cold storage device. The red
wine fresh-keeping device comprises a
bottle plug, a sealing sleeve and a
retainer, wherein the
bottle plugis provided with a one-way valve; the sealing sleeve is located above the
bottle plug, the sealing sleeve is matched with the bottle plug, the sealing sleeve communicates with an air suction
pipe, theair suction
pipe is connected with a
vacuum pump, a
pressure sensor used for controlling the opening and closing of a
vacuum pump is arranged in the sealing sleeve, and a photoelectric switch used for controlling the opening and closing of the
pressure sensor is embedded in the position, close to the bottom, of the interior of the sealing sleeve; and the
retainer is located under the sealing sleeve, a lifting
assembly is arranged between the
retainer and the sealing sleeve, and the lifting
assembly is used for driving the retainer to ascend and descend. The red
wine cold storage device comprises a
cold storage chamber, and the red wine fresh-keeping device is arranged in the cold storage chamber. The red wine fresh-keeping device and the cold storage device have the effect of improving the convenience of red wine preservation.