Buffer packaging

A buffer packaging, including:

• a main body, stretchable in a stretching direction, including at least one receiving hole;
• at least one support plate, connected with the main body, being swingable between a first position and a second position;
• an upper plate, wherein the upper plate is fixedly connected to a side of the main body lateral to the stretching direction, and when the support plate swings to the second position, the support plate is parallel to the stretching direction;
• and
• a lower plate, wherein the lower plate is fixedly connected to a side of the main body opposite to the upper plate, and the lower plate is movable with the main body in the stretching direction,
• wherein the upper plate includes at least one through hole, each of the at least one through hole corresponds to and aligns with one of the at least one receiving hole, and an opening of each of the at least one through hole has a fixed area the same as an area of an opening of one of the at least one receiving hole, and
• wherein there is a folding line between each of the at least one support plate and the upper plate, the support plate is swingable about the folding line relative to the upper plate, and a length of the support plate from the folding line to an end of the support plate in a direction perpendicular to the folding line is larger than a length of the upper plate in a direction perpendicular to the folding line.