Double-layer carriage structure and truck

The utility model discloses a double-layer compartment structure and a truck, and relates to the technical field of compartment structures, the compartment structure comprises a compartment, cross beams and a mesh belt, the length direction of the cross beams is perpendicular to the length direction of the compartment, and the cross beams are horizontally laid in sequence in the length direction of the compartment so that the compartment can be layered up and down; first buckle grooves are formed in the two sides of the carriage, and second buckle grooves are formed in the cross beams; the mesh belt is used for wrapping and constraining the outer side of the goods, and buckles are arranged on the two sides of the mesh belt correspondingly and used for being buckled in the first buckle groove and the second buckle groove; elastic ropes are arranged in the compartment, the two ends of each elastic rope are fixed to the top of the inner wall of the partition layer, the length direction of each elastic rope is th