Transverse multi-head negative pressure cleaning equipment for pole columns on two sides of square lithium battery

The utility model discloses a square lithium battery two-side pole transversely-placed multi-head negative pressure cleaning device which comprises an outer supporting mechanism which comprises a cuboid container with an opening in one side face, a cleaning butt joint mechanism is installed at the opening end of the cuboid container, and a plurality of cleaning butt joint openings are formed in the cleaning butt joint mechanism; the cleaning circulation mechanism is arranged in the outer supporting mechanism and comprises a cleaning circulation water tank, a cleaning pump, a ball valve and a cleaning backflow device, a backflow cavity is formed in the cleaning backflow device, a plurality of backflow openings communicated with the backflow cavity are formed outside the cleaning backflow device, and the backflow openings are communicated with a cleaning butt joint opening pipeline; a cleaning pump is connected between a liquid outlet of the cleaning circulating water tank and the backflow cavity, and a ball va