be entitled to
Permit filing
ApplicationNo.: 20 1320520225.0 Application Date: 20 13-08-26.
The utility model discloses a quick-change inner tube, which is an annular bag with a fracture, and both ends of the fracture are wedged with each other, and the wedge angle is 15-35 degrees. When the inner tube of an electric bicycle needs to be replaced, it is not necessary to remove the wheel, but only to take it out from the outer tire with a tool. Then, the newly replaced inner tube can be put into the outer tire. Because the two ends of the fracture are wedge-shaped, when the inner tube is inflated, the air pressure will automatically press the two open ends along the wedge-shaped inclined plane without additional connection, so that the replacement time of the inner tube will be greatly shortened.
Applicant: Zhang Jianwei.
Inventor (Designer): Zhang Jianwei
Main classification number: b60c5/10 (2006.438+0) i.
Classification number: b60c5/10 (2006438+0) i.