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a chainless bicycle

A technology for bicycles without chains, which is applied to vehicle parts, vehicle gearboxes, rider drives, etc. It can solve the problems of small transmission friction and variable speed bicycles, and achieve the effects of easy disassembly and installation, strong load bearing and light weight

Active Publication Date: 2020-08-28
天津市金镁轮科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing bicycle industry seldom has shaft-driven variable-speed bicycles with small transmission friction, and proposes a chainless bicycle

Method used

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  • a chainless bicycle
  • a chainless bicycle
  • a chainless bicycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: refer to Figure 1-2, a chainless bicycle, including a magnesium alloy frame 1 and a rear wheel 2, and also includes a shaftless crank device 3, a drive chuck 4 and a shaft transmission device 5, the rear wheel 2 is movably installed on the lower right part of the magnesium alloy frame 1, The driving chuck 4 is fixedly connected with the central part of the rear wheel 2, the shaftless crank device 3 is fixedly installed in the lower part of the magnesium alloy frame 1, and the two ends of the shaft transmission device 5 are respectively movable with the shaftless crank device 3 and the driving chuck 4 connect.

[0030] Shaft transmission device 5 comprises drive set 10, cover rod 11, drive set 12 and drive shaft 22, drive set 10 is fixedly connected with the outer surface of shaftless crank device 3, and the two ends of cover rod 11 are connected with drive set 10 and drive set respectively. 12 is fixedly connected, the drive shaft 22 is fixedly installed...

Embodiment 2

[0032] Embodiment 2: refer to Figure 3-8 , The difference in connection with the basis of Embodiment 1 is that the shaftless crank device 3 includes a crank ring 6, a shaftless chainring 8 and a pedal part 9, and the shaftless chainring 8 is movably installed inside the crank ring 6 , the outer surface of the crank ring 6 is provided with a circular rail 7, the outer ring of the shaftless chainring 8 is fixedly connected with a connecting bearing 16, the two sides of the shaftless chainring 8 are fixedly installed with a connecting part 19, and one end of the pedal part 9 is worn The round rail 7 is fixedly connected with the connecting part 19, and a connecting groove 17 is arranged between the connecting bearing 16 and the shaftless crankset 8. The outer surface of the shaftless crankset 8 is fixedly mounted with a driving gear 18, and the inner part of the drive kit 10 is fixedly installed. Driven gear set 20 is arranged, and the left end of driving shaft 22 is fixedly equ...

Embodiment 3

[0035] Embodiment 3: refer to Figure 9-10 , the difference with the basis of Embodiment 1 is that the outer surface of the sleeve rod 11 is provided with a shift groove 32, the left middle part of the driving kit 12 is fixedly installed with a second bearing 33, and the left end of the driving kit 12 is fixedly installed with a The shift block 34, the shift block 34 matches the shift slot 32, the inner surface of the sleeve rod 11 is fixedly installed with a shift gear set 35 and a wire harness 36, and the two sides of the shift block 34 are provided with gear grooves , the two sides of the shifting gear set 35 are respectively matched with the wire harness device 36 and the gear groove, the wire harness device 36 is movably connected with a shift connecting line 37, and the magnesium alloy vehicle frame 1 is fixedly installed with a gear adjuster, and the gear shifter The other end of connecting line 37 is flexibly connected with gear adjuster.

[0036] In this chainless bi...

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PUM

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Abstract

The invention belongs to the field of bicycles and discloses a chainless bicycle. The chainless bicycle comprises an aluminum alloy frame, a rear wheel, a shaftless crank device, a driving chuck and ashaft transmission device. The rear wheel is movably mounted on the right lower portion of the aluminum alloy frame; the driving chuck is fixedly connected with a center portion of the rear wheel; the shaftless crank device is fixedly mounted on the lower middle portion of the aluminum alloy frame; two ends of the shaft transmission devices are in movable connection with the shaftless crank device and the driving chuck respectively. The shaftless crank device drives the driving chuck to rotate through the shaft transmission device to further drive the rear wheel to rotate. Due to multi-stagering grooves which are driving grooves in the driving chuck, positions of the driving grooves and driving loops can be adjusted by adjustment of positions of a driving sleeve part and a sleeve rod, sothat speed changing is realized.

Description

technical field [0001] The invention relates to the field of bicycles, in particular to a chainless bicycle. Background technique [0002] A bicycle, also known as a bicycle or bicycle, is usually a small land vehicle with two wheels. After people ride on the bike, they use the pedals as the power, which is a green and environmentally friendly means of transportation; it can be used as an environmentally friendly means of transportation for transportation and travel; more and more people use bicycles as fitness equipment for riding, exercising, cycling travel. Most of the traditional bicycle transmission systems use chain transmission. The chain transmission technology is mature, but there are still some inconveniences in use, such as easy to drop the chain. Compared with chain-type bicycles, shaft-drive bicycles have a longer service life and higher transmission efficiency. features. [0003] In the existing bicycle industry, there are seldom shaft-drive variable-speed b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62M1/36B62M11/06
CPCB62M1/36B62M11/06
Inventor 唐靖林
Owner 天津市金镁轮科技有限公司