Operating device of lead-acid battery

A running device of a lead-acid battery relates to the field of lead-acid battery production and comprises a pressing plate assembly and a vacuum generator, the pressing plate assembly comprises an upper connecting plate, a lower pressing plate, connecting columns and springs, four corners between the lower pressing plate and the upper connecting plate are connected through the connecting columns, and the connecting columns are sleeved with the springs; the lower pressing plate is a hollow plate body, a cavity used for negative pressure airflow to pass through is formed in the lower pressing plate, a plurality of air outlet holes are formed in a bottom plate of the lower pressing plate, a sponge mat is bonded to the bottom plate of the lower pressing plate, and a plurality of corresponding square recesses are formed in the edge faces of the two sides in the length direction of the sponge mat at intervals. The distance between the left and right adjacent square recesses corresponds to the width of the upper su