Vacuum variable-pressure buffer device for food processing

The invention relates to the technical field of food processing, in particular to a vacuum variable-pressure buffer device for food processing. The device includes a base, a box body is fixedly mounted on the upper end surface of the base through screws, a cover body covers the upper end surface of the box body, the upper part of one side of the box body is communicated with an L-shaped pipe, thehorizontal part of the L-shaped pipe extends into the box body, one end of the L-shaped pipe is fixedly sleeved with an air collecting cover, a filtering cover is arranged on the lower end face of thevertical part of the L-shaped pipe, flanges are welded to the two ends of the filtering cover, a negative pressure pump is fixedly installed on one side of the upper end face of the base through screws, the output end of the negative pressure pump communicates with a vertical pipe, the upper end of the vertical pipe extends into the filtering cover, and a coarse filtering layer is horizontally clamped and fixed to the upp