Refrigerator

The utility model relates to a refrigerator, which comprises a refrigerator body, a refrigerator door and a refrigerator door, the box door is used for opening and closing the storage chamber; an air inlet channel is arranged in the box door, and one end of the air inlet channel is communicated with the storage chamber; the other end of the air inlet channel communicates with the outside of the box door. A valve port is formed in the air inlet channel; the valve body is arranged in the air inlet channel and is movably arranged at the valve port; the valve body can block the valve port under the action of self gravity, so that the air inlet channel is closed; when the air pressure in the storage chamber is smaller than the air pressure outside the refrigerator body, and the difference value between the air pressure in the storage chamber and the air pressure outside the refrigerator body is larger than the preset threshold value, the pressure outside the refrigerator body can jack up the valve body and open th