Abstract: A wine taking device used in a wine fresh-keeping device may be shown and described. A first pipe, the first end of the first pipe is connected with the fresh-keeping gas storage tank, a first solenoid valve, a first end of the first solenoid valve is connected to a second end of the first pipe, a second pipe, the first end of the second pipe is connected to a second end of the first solenoid valve, a three-way valve, a first end of the three-way valve is connected to a second end of the second pipe, a second solenoid valve, a first end of the second solenoid valve is connected to a second end of the three-way valve, and a second end of the second solenoid valve is provided with a hollow needle used to reach into the wine bottle to take wine, and connected to the second solenoid valve.

Abstract: A wine fresh-keeping device may be shown and described. The wine fresh-keeping device includes: a housing, and an exchange port for exchanging items inside and outside the housing, and a sealing cover is provided at the exchange port, a containing chamber is formed inside the housing, a fresh-keeping gas storage tank, and one end of the fresh-keeping gas storage tank is matched with the exchange port, a wine bottle installation chamber, the wine bottle installation chamber is arranged in the containing chamber, and one end of the wine bottle installation chamber is matched with the exchange port, a wine taking device, the wine taking device is arranged in the housing and connected to the fresh-keeping gas storage tank, and a refrigeration device, the refrigeration device is arranged on the housing, and cools the wine installation chamber.

Abstract: A hollow needle insertion structure used in a wine fresh-keeping device may be shown and described. A wine bottle installation chamber, where the wine bottle installation chamber is arranged in a containing chamber, and one end of the wine bottle installation chamber is matched with an exchange port, a wine sleeve, the wine sleeve is arranged in the wine bottle installation chamber, and a cooperating movement threads is provided between outer side wall of the wine sleeve and inner side wall of the wine bottle installation chamber; and a hollow needle, the hollow needle is matched with the wine bottle installation chamber; after the wine bottle is installed in the wine sleeve, the wine sleeve moves along the cooperating movement threads into the wine bottle installation chamber, and after contact with the hollow needle, the hollow needle is inserted into the wine bottle under the rotation of the wine sleeve.