| 摘要 |
A foldable bicycle frame comprises a front fork assembly (11), a cross beam assembly, a rear wheel support assembly (31, 32, 33), and a saddle assembly (53, 54). The front fork assembly (11) is disposed on a front wheel assembly. The rear wheel support assembly (31, 32, 33) is disposed on a rear wheel assembly. The cross beam assembly, a cross handle assembly disposed on the front fork assembly (11), a saddle assembly (53, 54) disposed on the rear wheel support assembly (31, 32, 33), and a driving and transmission assembly (62, 63) are disposed between the front fork assembly (11) and the rear wheel support assembly (31, 32, 33). In the present invention, by arranging a plurality of X-shaped telescopic mechanisms and a quick-locking device (21), the bicycle frame can be folded after quick-unlocking, and the bicycle frame can be tightly locked after being unfolded; the bicycle frame after being folded has a small size, so that the bicycle has a small size, a light weight and is easy to carry. |
