Wall-mounted foldable chair

The connecting rod is divided into multiple sections (first connecting rod, second connecting rod, third connecting rod) that can be sequentially folded and stacked. This segmentation allows the long connecting rod to be broken down into manageable segments that can be compactly stored, improving folding efficiency while maintaining structural stability when extended.

The folded connecting rods are nested within the rotatable frame structure, with each segment of the connecting rod positioned inside the frame when folded. This nesting arrangement minimizes the occupied space during folding while preserving the full extension length for stable seating when unfolded.

The support function is segmented from the seating function. Instead of relying on the U-shaped elbow to provide both seating support and wall friction, the design uses dedicated supporting legs that extend to the ground for weight bearing, while the U-shaped elbow serves primarily for structural connection and folding mechanics.

The supporting legs act as intermediaries between the rotatable frame and the ground, transferring the user's weight through a dedicated structural path rather than relying on friction at the wall contact point. This intermediary structure ensures uniform weight distribution and prevents deformation of the seating area.

The long connecting rod is segmented into multiple shorter sections that can be connected in sequence when extended for reliable connection, but folded and stacked compactly when not in use. This segmentation maintains connection reliability while dramatically reducing the occupied space during folding.

The connecting rod structure utilizes three-dimensional space efficiently by arranging the folded segments vertically within the rotatable frame rather than extending horizontally. This dimensional reorganization maintains connection functionality while minimizing the horizontal occupied space when folded.