Sliding frame assembly for trailers

A sliding frame assembly for trailers, wherein the sliding frame assembly for trailers comprises two longitudinal beams, a number of cross beams connected between the two longitudinal beams, and a suspension system;

• the longitudinal beam includes a side wall, a top wall located at the top of the side wall, and a bottom wall located at the bottom of the side wall, wherein an opening is formed between the top wall and the bottom wall in an inner side of the longitudinal beam, and an end of the cross beam penetrates through the opening;
• an end surface of the cross beam and an inner surface of the side wall, an upper surface of the cross beam and a lower surface of the top wall, a lower surface of the cross beam and an upper surface of the bottom wall are fixedly connected together respectively;
• the suspension system includes a bracket, the bracket includes an outer wall plate, an inner wall plate opposite to the outer wall plate, and a connecting piece connected between the outer wall plate and the inner wall plate, wherein an upper end of the outer wall plate abuts an outer surface of the side wall and is connected to the side wall, an upper end of the inner wall plate is connected to the longitudinal beam, and the inner wall plate includes a support plate bent in a direction away from the outer wall plate, and the support plate is connected to the cross beam;
• wherein the cross-section of the connecting piece is U-shaped, the connecting piece is disposed between the outer wall plate and the inner wall plate, and the connecting piece includes a top portion coupled with a lower surface of the bottom wall of the longitudinal beam.