Super-labor-saving bicycle
A bicycle and super technology, applied in bicycle accessories, bicycle saddles, bicycle gear shifting mechanisms, etc., can solve problems such as unhealthy back, bad health effects, and failure to achieve fitness effects, etc., to achieve energy-saving riding and good exercise effects Effect
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Embodiment 1
[0038] like figure 2 As shown, the transmission mechanism also includes an intermediate flywheel 17. The pedal 4 extends vertically with a rotating shaft at one end hinged with the vehicle frame 5. The intermediate flywheel 17 is fixedly sleeved on the rotating shaft. The second flywheel 15, the intermediate flywheel 17 and the second flywheel The three flywheels 16 are connected in transmission through the first chain 14 .
[0039]When riding, the person's buttocks sit on the seat 8, the feet are placed on the pedals 4 but no force is applied, the seat 8 supports the weight of the whole human body through the buttocks, and the seat 8 naturally goes downward, simultaneously driving the hem of the swing rod 7, and the pedals The plate 4 is tilted upward, the sector gear 12 rotates clockwise, the first flywheel 13 rotates counterclockwise, drives the second flywheel 15 to rotate, the first chain 14 rotates, the third flywheel 16 drives the rear wheel assembly 2 to rotate counte...
Embodiment 2
[0041] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the transmission mechanism includes the second chain 18, the third chain 19, the fifth flywheel 23, the fourth flywheel 22, the transition flywheel 20 and the middle chain plate 21, and the pedal 4 There is a rotating shaft extending vertically from the rotating joint with the vehicle frame 5. The transition flywheel 20 is sleeved on the rotating shaft. It is coaxially fixedly connected with the first flywheel 13, the diameter of the fifth flywheel 23 is greater than the diameter of the first flywheel 13, the fifth flywheel 23 is connected with the transition flywheel 20 through the second chain 18, and the middle chain disc 21 and the fourth flywheel 22 pass through The third chain 19 is connected in transmission, and the fourth flywheel 22 is connected with the rear wheel assembly 2 . The diameter of the fifth flywheel 23 is greater than the diameter of the middle chain disc 21...
Embodiment 3
[0045] Such as Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the rear wheel assembly 2 is provided with a second seat 24 , the second seat 24 is fixed on the vehicle frame 5 , and an armrest 23 is installed at the rear end of the seat 8 . When in use, both the second seat 24 and the seat 8 can carry people. When riding, the people on the second seat 24 hold the armrest 23 with their hands, and press up or down the armrest 23 to play a power-assisted role.
[0046] Specifically, the armrest 23 includes a handle portion and two connecting portions vertically connected to both ends of the handle portion, and the two connecting portions are respectively fixed on the seat 8 .
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