Warehousing heavy goods shelf convenient to maintain

The storage heavy goods shelf convenient to maintain comprises a supporting column, a plurality of first positioning holes are formed in the front face of the supporting column at equal intervals, a base is fixedly arranged at the bottom of the supporting column, a paint spraying opening is formed in one side of the supporting column, a sealing plate is arranged on the inner wall of the paint spraying opening in a clamped mode, and a sealing rubber strip is fixedly arranged on the edge of the sealing plate. A sealing plate is fixedly arranged on the side face of the supporting column, a handle is fixedly arranged in the middle of one side of the sealing plate, a fixing plate is fixedly arranged at the top end of the inner wall of the paint spraying opening, and fixing holes are formed in the middle of the fixing plate and the middle of the sealing plate. And then paint spraying work is conducted on the interior of a paint spraying opening, through the paint spraying opening, antirust paint can effectively con