Sofa structural frame and sofa thereof

A sofa structural frame, comprising a plurality of sofa modules constituting a sofa frame and splicing pieces installed on the sofa modules, wherein the splicing pieces are detachably connected;

• the surfaces of the sofa modules are formed with connecting parts through a molding process;
• the splicing pieces comprise splicing pieces and installation parts;
• the installation parts are all configured to have a shape that is matched with the connecting parts and are connected with the connecting parts in a clamping manner;
• and the splicing piece is detachably connected with the connecting part of another splicing piece through the connecting part.

A sofa structure, comprising a sofa structural frame and a soft cladding arranged outside the sofa structural frame;

• wherein the sofa structural frame comprises a plurality of sofa modules, seat frame components, splicing pieces and supporting pieces which are combined to form a sofa frame, wherein the sofa modules comprise a backrest frame and armrests made by a molding process, the armrests are arranged on both sides of the backrest frame by the splicing pieces, and the seat frame components are arranged between the armrests on both sides by the supporting pieces;
• and
• connecting parts are formed on the surfaces of the armrests and the backrest frame, and a mounting part is formed on the surface of the armrest;
• the splicing pieces comprise a first connector and a second connector which are connected with each other;
• and the supporting pieces are configured to be respectively connected with the mounting part and the seat frame component in a clamping manner;
• and
• wherein, the first connector and the second connector are both configured to have a shape that is mutually matched with the connecting part and are connected with the connecting part in a clamping manner, and the supporting pieces are configured to have a shape that is mutually matched with the mounting part.