Parking valve-controlled sealed lead-acid storage battery for heavy-duty vehicle

A parking valve-controlled sealed lead-acid storage battery for a heavy-load vehicle comprises a battery jar and a battery cover, pole groups are assembled in single cells of the battery jar, a battery cover ring edge glue groove is formed in the battery cover corresponding to the battery jar, the width of the battery cover ring edge glue groove is larger than the wall thickness of the upper portion of the battery jar, and the upper portion of the battery jar is inserted into the battery ring edge cover glue groove. The battery jar and the battery cover ring edge glue groove are bonded through epoxy resin; the bottom of the plate group in each unit cell is fixedly combined with the bottom surface of the battery jar unit cell through an elastic lower rubber layer, and the elastic lower rubber layer is an RTV (Room Temperature Vulcanization) silicon rubber layer; polar plate fixing plates are respectively arranged on the positive side and the negative side of each polar group; and the polar plates are fixed in