| 摘要 |
A portable thermos bottle with retractable suction tube comprising a case, a cup cover, an inner cover with a sliding slot, a slide block capable of sliding up and down on the sliding slot, a spiral reel fitted in the inner cover and having a helical groove, a projecting helical rib, an upper journal and a holed lower journal, two coiled springs fitted on the upper and lower journals, and a flexible sucker having one end coming out of the slide block and another extending through the lower journal hole into the bottle so that it is easier to suck the liquid or beverage in the bottle with the retractable suction tube.
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