Airtight penetration structure for heat dissipation device

An airtight penetration structure for heat dissipation device, comprising:

• a first plate member having a first side and a second side, and being provided with a plurality of first fastening holes;
• and the first fastening holes respectively extending from the first side to the second side to penetrate the first plate member;
• a second plate member having a third side and a fourth side, and being provided with a plurality of second fastening holes;
• the second fastening holes respectively extending from the third side to the fourth side to penetrate the second plate member;
• and the first and the second plate member being closed to each other with the first side facing toward the third side, such that a closed chamber is defined between the first and the second plate member;
• and
• a plurality of hollow shaft members respectively being provided at two free ends with a first flange and a second flange;
• the hollow shaft members being correspondingly extended through the first and the second fastening holes with the first and the second flanges attached to and flush with the second side of the first plate member and the fourth side of the second plate member, respectively, to seal around the first and the second fastening holes.