| 摘要 |
A dual-intake air capsule includes a hollow main body having a resilient top, an opposite bottom and a side wall connecting the top and the bottom. Two intake valves and two discharge valves are mounted to the side wall. A resilient pillar is arranged inside the main body with a lower end fixed to the bottom and an upper physically engaging and thus supporting the top. All the valves are one-way valves whereby when the top of the main body is depressed by an external load, air inside the main body is pumped out through the discharge valves. When the loaded is removed, the resiliency of the top of the main body and the resilient pillar return the top of the main body to the original position, which forces surrounding air into the main body through the intake valves. Thus air can be continuously pumped by the air capsule.
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