Iron sofa frame structure, sofa and production method thereof

A sofa, characterized by comprising:

• an iron sofa frame structure, wherein the iron sofa frame structure is provided with a base (1), two supporting plates (2) oppositely disposed, configured to support a soft package and be connected with a sofa fabric, two driving link sets (3) respectively configured to connect the two supporting plates (2) to the base (1), two backrest assemblies (9) oppositely disposed and configured to connect the base (1) and the supporting plates (2) and two leg telescoping assemblies (8) oppositely disposed and connected to the supporting plates (2), a front rod (4) and a rear rod (5) are correspondingly disposed at intervals between the two supporting plates (2), and several elastic bearing pieces for bearing the soft package are disposed between the front rod (4) and the rear rod (5);
• the soft package, disposed on the elastic bearing pieces;
• the sofa fabric, wrapping surface of the soft package and being in snap connection with the two supporting plates (2);
• a backrest frame, disposed on the two backrest assemblies (9);
• a footrest frame, disposed on the two leg telescoping assemblies (8);
• and
• two armrest frames, respectively disposed at left and right sides of the iron sofa frame structure.