A crank-type bicycle with two gears

A dual-gear, bicycle technology, applied to bicycle accessories, bicycle control systems, vehicle components, etc., can solve problems such as physical exhaustion, muscle fatigue, and the bicycle cannot move backwards, and achieve the effect of solving the problem of strenuous riding.

Inactive Publication Date: 2019-01-15
吴监玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many improvements on bicycles, such as power-assisted steering bicycles, and labor-saving bicycles that use double-chain transmission; however, almost all bicycles on the market are chain-driven. When the pedals are stepped forward, the bicycle moves forward; When pedaling, the bicycle wheel spins idly, and the bicycle cannot move backwards when it moves clockwise; therefore, during long-term riding, especially when going uphill, the rider needs to keep pedaling forward for a long time, which is likely to cause muscle fatigue. Physical exhaustion and other situations, and as the rider gradually loses strength, the bicycle may also fall backwards, that is, fall from the hillside, which is very dangerous

Method used

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  • A crank-type bicycle with two gears
  • A crank-type bicycle with two gears
  • A crank-type bicycle with two gears

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A bell crank type double-gear bicycle, such as figure 1 Shown, mainly comprise vehicle frame 1, handlebar 2, front wheel, rear wheel 3, vehicle seat 4 and pedal 12, rear wheel 3 is provided with rear flywheel 31, also includes driving device on the vehicle frame 1, pedals forward Pedals 12 and pedals 12 are pushed backwards, and the driving device drives the bicycle to move forward.

[0026] Such as Figure 2-Figure 4 Shown, a kind of crankshaft type double-gear bicycle, the device of left and right crankshaft 11 crankshafts is in car body bushing 123, left gear 112 and right sprocket wheel 111 are respectively installed on the left and right sides of crankshaft 11, also has the second Two gears 115, right gear is installed on the left side of the crank shaft 11, connects the rear flywheel 31 on the left side of the rear wheel 3 of the car body through the right chain 113 and the right sprocket wheel 111 chain, and the left side of the crank shaft 11 is equipped with a...

Embodiment 2

[0028] The structure of embodiment 2 is basically different from the structure of embodiment 1, a kind of bellcrank type double-gear bicycle, such as Figure 5 with Image 6 Shown, the crankshaft 11 device crankshaft 11 is equipped with gears and sprockets left and right, the crankshaft 11 is installed in the car body bushing 123, and the right sprocket 111 is installed on the right side of the crankshaft 11, and the sprocket and chain are linked to The left gear 112 is installed on the left side of the crankshaft 11 of the second flywheel 64, and the left gear 112 and the third gear 63 have the same internal setting of the chain gear and the function of the flywheel. On, the two ends of the gear shaft 61 have bearings installed on the gear shaft bracket 615, the gear shaft 61 bracket is installed on the bicycle body, the third gear 63 is installed at one end of the gear shaft, the second spring 611 is arranged in the middle of the gear shaft 61, and the right side of the othe...

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PUM

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Abstract

A crank-type bicycle with two gears is provided and includes a crankshaft device and a bicycle frame, wherein the crankshaft device is mounted on the bicycle frame, the crankshaft is provided with a gear wheel and a sprocket on the left and right sides, the left and right rear flywheels are linked through the left and right sprockets and chains, the crankshaft left gear links the rear gear, and the rear gear is a two-body gear. At both end of that two-body gear shaft, screws and nut are fixed to the bracket. A spring is mounted at one end of that rear gear shaft, and two-body gears are mountedat the other end. Bearings are installed inside that two-body gears, can slide on the gear shaft, and can shift and return gears through the spring. The two-body gear shaft is a hollow shaft, a nail-shaped tie rod is installed inside, a lever and a hose are connected, and that other end of the hose is connected to the handlebar, and the shift position can be changed when necessary, the bicycle rider can move forward with both feet whether forward or backward, the bicycle rides in neutral gear freely, and the bicycle rides like an ordinary bicycle, so that the bicycle is simple and reasonablein structure, and the bicycle rider can save more labor.

Description

technical field [0001] The invention relates to a bicycle, in particular to a bell crank type double-gear bicycle. Background technique [0002] Bicycles, also known as bicycles or bicycles, are usually small road vehicles with two wheels; after people get on the vehicle, they are powered by pedals and are green and environmentally friendly means of transportation. [0003] At present, there are many improvements on bicycles, such as power-assisted steering bicycles, and labor-saving bicycles that use double-chain transmission; however, almost all bicycles on the market are chain-driven. When the pedals are stepped forward, the bicycle moves forward; When pedaling, the bicycle wheel spins idly, and the bicycle cannot move backwards when it moves clockwise; therefore, during long-term riding, especially when going uphill, the rider needs to keep pedaling forward for a long time, which is likely to cause muscle fatigue. Physical exhaustion and other situations, and as the rid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M11/02B62M9/02B62K23/04
CPCB62K23/04B62M9/02B62M11/02
Inventor 吴监玉
Owner 吴监玉
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