Seat steering bicycle
A bicycle and seat technology, applied in the field of bicycles and mopeds, can solve problems such as interference with front wheel steering, hidden dangers of cycling safety, and unstable driving, and achieve improved driving safety, comfortable and labor-saving structure, and large driving force. Effect
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Embodiment 1
[0012] Example 1: see figure 1 . The bottom of the front fork 2 is equipped with the front wheel 12 and the drive mechanism 1, the top is equipped with the seat 6, and the middle part is located in the steering tube 3 and can rotate therein. The steering tube is connected with the vehicle frame 9 through a pin shaft 10 . The lower end of the vehicle frame is equipped with a rear wheel 8, and a shock absorber 7 is provided between the top of the vehicle frame and the steering tube. Both sides of seat are provided with driving handle 4, and the lower end of driving handle is installed on the steering pipe. The backrest of the seat is provided with a cart handle 5. The driving mechanism can utilize the expansion and contraction of the air rod spring 11 to swing on the front fork, so that it is convenient to push the cart in the folded state, see figure 2 .
Embodiment 2
[0013] Example 2: see image 3 . The vehicle frame is provided with a gear box 13, and the driving handle is connected with the gear in the gear box in a swinging manner, and the gear box is connected with the flywheel 16 of the rear wheel through an output sprocket 14 and a chain 15. Swing the ride handle up and down or back and forth to turn the rear wheels.
Embodiment 3
[0014] Embodiment 3: see Figure 4 . The bottom of the seat is provided with a standpipe 19 , and the standpipe and the front fork are installed on the vehicle beam 17 with respective steering tubes, and the two are connected in a hinged manner through a pull rod 20 . Front wheel and drive mechanism are housed on the front fork. The rear end of the car beam is equipped with two rear wheels. The two rear wheels are installed on the vehicle beam through the vehicle frame and pin shaft 10, and can swing forward and backward relative to the vehicle beam. The vehicle frame is connected with the lower end of the vertical tube of the vehicle seat in a hinged manner through the rear tie rod 18. When the seat rotates, it can drive the front wheels to turn and the two rear wheels to swing back and forth. Steering rollover improves steering stability.
[0015] For vehicles with rear three-wheel structure, each rear wheel can be provided with a set of independent swing drive mechanism...
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