Compound inner-tube of bicycle
The utility model relates to a compound inner-tube of a bicycle, comprising two layers of mutually independent inner tubes, and two independent air valve passages. When the compound inner-tube of a bicycle is used, when one inner tube is punctured to leak air, the other inner tube can be inflated fo...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a compound inner-tube of a bicycle, comprising two layers of mutually independent inner tubes, and two independent air valve passages. When the compound inner-tube of a bicycle is used, when one inner tube is punctured to leak air, the other inner tube can be inflated for using continuously without disassembling a tyre for repair. The compound inner-tube of a bicycle has the advantages of time saving, labor saving and obvious convenience in emergency situations. |
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