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Crankset, auxiliary wheel, flywheel and anti-off chain transmission device

A technology of crankset and chain, applied in chain/belt drive, transportation and packaging, vehicle gearbox, etc., can solve the problems of difficult maintenance and poor user experience, and achieve the effect of improving the difficulty of disassembly

Pending Publication Date: 2018-08-03
马鞍山虹迈专业化设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem of poor user experience and difficult maintenance of existing bicycles caused by the chain falling off

Method used

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  • Crankset, auxiliary wheel, flywheel and anti-off chain transmission device
  • Crankset, auxiliary wheel, flywheel and anti-off chain transmission device
  • Crankset, auxiliary wheel, flywheel and anti-off chain transmission device

Examples

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Effect test

Embodiment 1

[0040] like Figure 1-2 As shown, a crankset (1) of the present invention includes a crankset body (2) and a baffle (3). There are two baffle plates (3), which are respectively fixed on the two sides of the chainring body (2). The baffle (3) includes a fixing part (301) and an anti-off part (302). The anti-off part (302) includes a limiting part (3021) and a deflection preventing part (3022). The fixing part (301) is arranged parallel to the side wall of the crank body (2) and fixed on the side wall of the crank body (2) in an annular structure or symmetrically arranged legs.

[0041] The limiting part (3021) is an annular structure located on the outer edge of the fixing part (301). The inner ring of the limiting part (3021) is fixedly connected to the outer end of the fixing part (301), and is arranged parallel to and spaced apart from the crankset body (2). The distance between the limiting portion (3021) and the chainring body (2) is smaller than the width of the chain...

Embodiment 2

[0045] like Figure 3-9 As shown, a crankset (1) of this embodiment has basically the same main structure as that of Embodiment 1, the difference is that it also includes a maintenance plate (4). One of the two baffles (3) is provided with a cutout (303). The cutout (303) is located on the anti-off portion (302). The cutout (303) allows the chain not engaged with the chainring body (2) to pass through. The slit (303) is provided with a baffle shaft hole (304) near one side edge; a threaded hole (305) is provided near the opposite side edge; and the fixing part (301) is provided with card slot (306). The maintenance plate (4) is adapted to the notch (303), and the maintenance plate (4) is corresponding to the baffle shaft hole (304), threaded hole (305) and card slot (306) on the baffle plate (3). At the position, a maintenance plate shaft hole (401), a through hole (402) and a clamping foot (403) are respectively arranged.

[0046]In this embodiment, when the shaft hole (...

Embodiment 3

[0050] A tooth plate (1) of this embodiment, the main structure is basically the same as that of Embodiment 2, the difference is that: the maintenance plate (4) is a sheet structure adapted to the cutout (303), and the maintenance plate (4) A connecting piece protruding from the side wall is arranged on the edge; a through hole is arranged on the connecting piece. Correspondingly, threaded holes are provided on the baffle (3) corresponding to the through holes on the sheet structure; the maintenance plate (4) is fixed on the baffle (3) by screws.

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PUM

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Abstract

The invention relates to a crankset, an auxiliary wheel, a flywheel and an anti-off chain transmission device. The crankset, the auxiliary wheel and the flywheel each are provided with two protectivebaffles, so that the whole chain transmission device forms a complete adaptive anti-off scheme. At the same time, the baffle located on the crankset is provided with a notch, a maintenance plate is configured at the position of the notch, and thus a chain can be installed or dismantled by opening the maintenance plate. According to the anti-off chain transmission device, by opening the maintenanceplate before the chain ages to natural vibration and dropping, the chain can pass through the notch, and thus the installing and dismantling of the chain are achieved through synchronous rotation ofthe crankset and the chain.

Description

technical field [0001] The invention belongs to the field of bicycle accessories, and more specifically relates to a toothed disc, an auxiliary wheel, a flywheel and an anti-off chain transmission device. technical background [0002] With the widespread use of shared bicycles, there have been various innovations in bicycle-related technologies to meet people's various needs when using shared bicycles. During the use of the bicycle itself, the off-chain phenomenon caused by the aging of the chain is one of the most significant defects that affect the bicycle experience. According to the scene, the chain falls are divided into: the chain falls off during the riding process and the chain falls off when the bicycle is suddenly accelerated during the sliding process. According to the position where the chain falls off, it is divided into: the chain falls off on the side of the chainring, the chain falls off at the flywheel, and the chain falls off at the auxiliary wheel of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/00
CPCB62M9/00B62M2009/005B62M2009/007
Inventor 李利
Owner 马鞍山虹迈专业化设计有限公司
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