Folding acid tank cover

The utility model discloses a folding type acid tank cover which comprises a tank body and supports installed at the two ends of the tank body, guide rails are arranged at the tops of the supports and used for sliding, a liquid receiving disc is fixed to the top end face of each support and used for collecting liquid, and the guide rails are installed at the tops of the liquid receiving discs and used for guiding the liquid receiving discs to slide. A groove cover assembly is arranged at the tops of the guide rails, the groove cover assembly can be folded and unfolded at present, the groove cover assembly comprises a first groove cover, a second groove cover, a third groove cover, a fourth groove cover and a fifth groove cover, the heights of the groove covers are different, and the two sides of the top end face of the second groove cover, the two sides of the top end face of the third groove cover, the two sides of the top end face of the fourth groove cover and the two sides of the top end face of the fifth