Energy-saving aluminum alloy fire-resistant window convenient to maintain

The utility model relates to the field of aluminum alloy fire-resistant windows, in particular to an energy-saving aluminum alloy fire-resistant window convenient to maintain, which comprises a frame structure and fireproof hollow double-toughened glass, the frame structure comprises an inner side frame and an outer side frame, clamping grooves are arranged on sides, close to each other, of the inner side frame and the outer side frame, and heat insulation strips are clamped in the clamping grooves. A steel lining is placed in the closed frame of the outer side frame, the bottoms of the inner side frame and the outer side frame define an insertion opening of the fireproof hollow double-tempered glass, the fireproof hollow double-tempered glass is fixed in the insertion opening, and a fireproof expansion strip is fixed to the hollow position of the top of the fireproof hollow double-tempered glass. The sides, close to each other, of the inner side frame and the outer side frame are detachably connected through