Foldable bicycle structure

• Main Author: LAI YANBIN
• Format: Patent
• Language: Chinese; English
• Published: 19.10.2011
• Subjects: CYCLE AXLE SUSPENSIONS; CYCLE FRAMES; CYCLE SIDE-CARS, FORECARS, OR THE LIKE; CYCLE STEERING DEVICES; CYCLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; PERFORMING OPERATIONS; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FORCYCLES; TRANSPORTING

The utility model discloses a foldable bicycle structure which comprises a front bicycle frame and a rear bicycle frame, wherein the rear bicycle frame is provided with a seat tube; the seat tube is connected with a front vertical tube of the front bicycle frame through an upper tube and a lower tube of the front bicycle frame; the foldable bicycle structure is characterized in that the seat tube is cut into an upper seat tube and a lower seat tube which are separated; tube orifices of the upper seat tube and the lower seat tube are provided with quick release constriction pieces; the upper seat tube is connected with the front bicycle frame; the lower seat tube is connected with the rear bicycle frame; the lower tube of the front bicycle frame is provided with a pivot tube which is near the tail end of the lower tube; a pair of pivoting sheets are arranged at the front edge of the lower seat tube; and the pivoting sheets are pivoted with a pivoting tube shaft through a shaft bolt penetrating set so as to com