Liquid nitrogen filling device

The utility model discloses a liquid nitrogen filling device which is composed of a tank body (6), an inner container (1), a flow dividing speed reducing plate (3), a split charging pipeline, a valve and a pressure reducing stabilizer (11). A vacuum layer (2) is arranged between the tank body (6) and the inner container (1), and a vacuum valve (5) is arranged on the tank body; a liquid inlet (4) and a plurality of liquid outlets (9) are formed in the tank body and the inner container, a flow dividing speed reducing plate (3) is arranged in the inner container, and one end of the flow dividing speed reducing plate is connected to the inner container; and each liquid outlet (9) is connected with a decompression stabilizer (11) through a liquid outlet pipe (7), a stop valve (8) and a hose (10). The device is provided with a vacuum layer for heat preservation, liquid nitrogen gasification is reduced as much as possible, pressure is reduced, and overflow waste is reduced. The device achieves the purpose of pressur