| 摘要 |
An inflatable bag includes a collapsible air-tight bag body and a collapsible air inlet device sealed to the collapsible air-tight bag body. The collapsible air inlet device being a flat tube formed of two rectangular flaps sealed together and having an inside wall coated with a layer of ink. And a blow pipe has an inner end inserted into the ink-coated inside wall inside the air inlet device and peripherally sealed to the collapsible air inlet device and an outer end extended out of the collapsible air-tight bag. Forced air is blown through the blow pipe into the air inlet device stretches open the air inlet device and inflates the air-tight bag body, and the air inlet device is compressed by air pressure to close its ink-coated inside wall to stop air from escaping out of the air-tight bag body after the air-tight bag body has been inflated.
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