Limiting device for container side board assembly and container rear board assembly

The utility model relates to a limiting device for a container side board assembly and a container rear board assembly. A rear board reinforcement piece is installed on the container rear board assembly; a boss structure is welded on the rear board reinforcement piece; a left side board plug and a right side board plug are connected at the end part of the boss structure in a leaning way; and the container side board assembly is arranged at one side of the boss structure and the left side board plug as well as the right side board plug. The limiting device is simple in structure and reasonable in design, and can avoid the collision of sheet metal parts on the premise of ensuring a gap between the container side board assembly and the container rear board assembly after assembly so as to solve the problem that sprayed paint can be stuck off.