| abstract |
The invention discloses a double-drive bicycle with a variable front-drive structure, which belongs to the technical field of bicycles and mainly comprises a frame (14), front and rear wheels, a saddle and pedals (15); the method is characterized in that: the upper part of the front end of the frame (14) is connected with a cylinder (1) through a cross rod (13); a T-shaped cylinder (5) is arranged at the front end of the frame (14), and a primary transmission device (4) is arranged between the left side of the cylinder (1) and the T-shaped cylinder (5); a secondary transmission device (8) is arranged between the right side of the T-shaped cylinder (5) and the front wheel hub. The front wheel driving and the rear wheel driving can be simultaneously carried out and can also be separately carried out, so that lactic acid released by anaerobic movement in the riding process is avoided, and the driving capability and the practicability of the bicycle are greatly improved. |