Ultrasonic nitrogen-assisted extraction device

The utility model discloses an ultrasonic nitrogen-assisted extraction device which comprises a nitrogen supply device and an extraction device which are communicated with each other, the extraction device comprises an extraction tank, an ultraviolet light emitting device, an ultrasonic extraction device and a temperature control device which are detachably connected. The device is simple and compact in overall structure, low in cost and easy to operate; the ultraviolet light emitting device is an arc-shaped cover and is used for emitting ultraviolet light to play a role in sterilization and disinfection; when the ultraviolet light emitting device is turned on, the materials before extraction can be added into the extraction tank; product decomposition and deterioration caused by material decay are prevented, and subsequent production and utilization are facilitated. The extraction tank is filled with nitrogen, namely when the materials are in an oxygen-free environment, the materials are extracted, so that a