Extraction device

The invention provides an extraction device which comprises a machine shell, an extraction part, a liquid inlet pipe, a liquid outlet pipe and a pump assembly, and the machine shell is provided with a containing cavity. The extraction part is separably arranged in the accommodating cavity and is provided with an extraction cavity; and at least one part of the liquid inlet pipe is positioned in the accommodating cavity and is communicated with the extraction cavity. The liquid outlet pipe is located in the containing cavity and communicates with the extraction cavity. The pump assembly is located in the containing cavity and communicates with the liquid outlet pipe, and the pump assembly is used for driving fluid to enter the extraction cavity from the liquid inlet pipe and then flow to the liquid outlet pipe. The pump assembly capable of forming negative pressure is arranged at the liquid outlet pipe, so that short-time pressurized extraction can be realized, the extraction time is shortened, and the extracti