Attic stairs

Attic stairs, comprising:

• a frame assembly, comprising a plurality of side plates, wherein the plurality of side plates successively enclose an accommodation space;
• a door panel assembly, movably mounted below the plurality of side plates, wherein the door panel assembly comprises a door panel and a fixed frame, and the fixed frame is fixedly mounted on the door panel;
• a plurality of adjustment members, mounted on two sides of the fixed frame;
• an attic stair assembly, comprising a plurality of foldable stair segments, wherein a lowermost stair segment of the plurality of foldable stair segments is mounted on the plurality of adjustment members, a distance between the lowermost stair segment and the door panel is adjusted along the plurality of adjustment members, and the attic stair assembly is allowed to be accommodated in the accommodation space;
• and
• a hinge assembly, comprising two unfolding hinge mechanisms and two limiting hinge mechanisms, wherein first ends of the two unfolding hinge mechanisms are respectively arranged at end portions of two sides of the fixed frame, and second ends of the two unfolding hinge mechanisms are connected to end portions of inner sides of two side plates of the plurality of side plates, so that the door panel is allowed to rotate downward along a side of the two unfolding hinge mechanisms to be opened and closed;
• first ends of the two limiting hinge mechanisms are respectively arranged at a middle of the fixed frame, and second ends of the two limiting hinge mechanisms are connected to middles of the inner sides of the two side plates for limiting an unfolding angle of the door panel.