Arrangement structure of high-water-level variable-amplitude water inlet opening and closing equipment

The utility model discloses an arrangement structure of a high-water-level variable-amplitude water inlet opening and closing device. A double-door type frame portal crane is arranged on three rails on a dam body top face overhaul platform. A movable bidirectional trolley, a fixed lifting mechanism and a rotary crane or cantilever movable trolley are arranged on the double-door type frame door machine; a sewage disposal grab bucket is arranged on the movable two-way trolley; a trash removal scraper bucket groove, a working trash rack groove, a standby trash rack groove, a stop log gate grooveand a gate storage groove which are sequentially arranged in the water flow direction are formed in the dam body between the upstream rail and the middle rail; a bulkhead gate groove is formed in thedam body between the middle rail and the downstream rail; a quick gate shaft is arranged on the downstream side of the downstream rail. According to the utility model, one double-door type frame portal crane is adopted to repl