Maintenance tray for expanded perlite insulation board

The utility model provides a maintenance tray for an expanded perlite insulation board, which relates to the technical field of perlite insulation board processing and comprises a tray body and a hollow groove arranged in the middle of the tray body. The bottom of the hollow groove is fixedly provided with a supporting net plate used for supporting the heat preservation plate, the two ends of the hollow groove are each rotationally provided with a first double-thread screw, one end of each first double-thread screw extends out of the hollow groove and is fixedly provided with a first hand wheel, and the front side and the rear side of the hollow groove are each provided with a clamping plate; the two ends of each clamping plate are each provided with a threaded hole, the clamping plates are in threaded connection with the first double-thread screw through the threaded holes, the two opposite sides of the two clamping plates are each provided with a clamping sliding groove, the two ends of each clamping slidin