| 摘要 |
A foldable bicycle comprises a frame, two supporting beams, two wheels, a handle assembly, a saddle, two linkage rods, a driving assembly and a transmission assembly. An accommodating space is formed inside the frame. The two supporting beams are hinge-connected to the frame. The handle assembly is mounted on the top of one of the supporting beams. The saddle is mounted at the upper end part of a supporting assembly. The supporting assembly is positioned between the two supporting beams and can slide along the height direction of the frame, and a pivotal connection part is formed at the lower end part of the supporting assembly. The inner side end parts of the two linkage rods are hinge-connected on the pivotal connection part respectively, and the outer side end parts of the two linkage rods are hinge-connected on the two supporting beams respectively. The driving assembly is mounted on the side surface of the frame, and comprises a first rotating member, a second rotating member synchronously linked with the first rotating member, and a pedal. The transmission assembly is used for synchronously linking the second rotating member with the corresponding wheel at the bottom of one of the supporting beams. The unfolding and folding processes of the bicycle are simple, quick and easy to operate, the folded supporting beams can be arranged inside the frame, and the folded bicycle occupies a small space and is convenient to carry. |
