Sliding and lifting template for construction of overflow surface of overflow dam

The invention relates to the technical field of overflow dam construction, and discloses a sliding and lifting formwork for overflow surface construction of an overflow dam, the sliding and lifting formwork comprises guide rails I, guide rails II, a steel bar net rack, a tractor, a supporting frame and a troweling plate, the two guide rails I are symmetrically mounted on the overflow dam, and the steel bar net rack is fixedly mounted between the two guide rails I; the steel bar net rack is located on the upper side of the overflow dam, the second guide rail is fixedly installed in the middle of the top end of the steel bar net rack, the same supporting frame is slidably installed on the first guide rail and the second guide rail, and the tractor is installed at the top end of the overflow dam. According to the device, a pressing rod can be extruded by rotating a rotating block, then an arc-shaped pressing piece is driven to move to be attached to an adjusting screw rod, meanwhile, a T-shaped moving rod is dri