The utility model discloses a sofa of visual inner support structure relates to furniture technical field, including bottom frame and integrated backplate. This sofa of visual inner support structure bottom frame adopts the transparent design of PC
material quality, not only direct show internal support structure, promote product technology transparency and aesthetic value, still utilize the high strength and
impact resistance of PC material, ensure that the structure is firm and durable, the wedge
interlocking design of isosceles trapezoidal convex rod and recess, through the self -lock principle and enhance the anti -
lateral displacement ability of horizontal support beam, cooperate horizontal support beam and the mortise -and -tenon joint of longitudinal support beam, form cross grid
support system, effectively disperse stress and restrain deformation, prolong the service life of sofa, the combination of four groups of lifting support leg and rubber pad, realize height adjustment and antiskid
damping function, prolong the service life, whole design gives consideration to
mechanics stability, functional flexibility and visual display, satisfy the double demand of quality and aesthetics to modern house.