Middle net elastic device, middle net assembly, vehicle body structure and vehicle

The utility model relates to the technical field of vehicle body structures, and provides a middle net elastic device, a middle net assembly, a vehicle body structure and a vehicle. Wherein the elastic seat body comprises a first plate piece and a second plate piece, the first plate piece is used for being installed on the middle net body, one end of the second plate piece is connected with the first plate piece, and a gap is formed between the other end of the second plate piece and the first plate piece; the protruding structure is arranged at the other end of the second plate and located onthe side, away from the first plate, of the second plate. The elastic seat body is configured to be capable of allowing the gap to be reduced when the protruding structure makes contact with a vehicle body part of a vehicle. According to the middle net elastic device, the effect of adjusting the gap symmetry difference can be improved, the middle net assembly of the vehicle can be automatically centered, and the middle n