Cushion structure

A cushion structure, comprising:

• a box;
• a holding structure placed inside the box, comprising:
• an under holder placed at the bottom inside the box;
• two side holders put as two opposite sides inside the box respectively and joined with the under holder;
• and
• a cap holder disposed opposite to the under holder and joined with the side holders;
• and
• a first cushion placed between the box and the holding structure, the first cushion comprising:
• a bearing part with two sides, facing a corresponding inner side of the box for receiving a shock to the box;
• two buffer parts joined with the two sides of the bearing part to form a first angle and a second angle;
• and
• two supporting parts joined with opposite sides to the sides of the buffer parts joined with the bearing parts to form a third angle and a fourth angle,
• wherein each of the two side holders has an adapter for joining with the two supporting parts, respectively to resist the shock with the first cushion averagely at the same time.