Sealing detection method for a sealing structure

A sealing detection method for a sealing structure, the sealing structure comprising:

• a base, which comprises a mounting through hole formed therein;
• and
• a gasket which is disposed in the mounting through hole,
• wherein an opening is provided at the upper portion of the gasket, the edge of the opening is integrally formed with a skirt portion extending outward, and sealing layers are formed between the gasket and the mounting through hole, and between the skirt portion and the base;
• being characterized in that, the sealing detection method for the sealing structure comprises the following steps:
• S 1, attaching a thin film on the gasket to seal the opening;
• S2, disposing a sealing ring directly below the base to seal a lower opening of the mounting through hole;
• S3, providing a vent hole on the sealing ring through which the sealing ring communicates with a gas source with a gas pressure sensor;
• S4, starting to supply or pump gas by the gas source into the sealing ring through the vent hole to form a positive pressure or a negative pressure region between the sealing ring and the base;
• S5, maintaining the air pressure state for a certain time, during which the gas pressure sensor performs real-time detection of gas flow;
• S6, comparing detected gas flow with a qualified threshold range, when the gas flow is within or less than the qualified threshold range, the sealability of the sealing structure meets the design requirements;
• otherwise, the sealability of the sealing structure does not meet the design requirements;
• S7, sorting products with the sealing structure according to detection results;
• S8, peeling off the thin film and completing the detection.