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Bicycle chain falling and breaking protection device

A technology for protection devices and bicycles, applied in chain/belt transmissions, vehicle components, vehicle gearboxes, etc., can solve problems such as fracture, rider injury, and chain falling off, so as to reduce wear, avoid accidents, and reduce friction Effect

Inactive Publication Date: 2021-07-09
壹柏(广州)电子商务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the chain falls off or breaks due to various reasons during the riding of the bicycle, causing the rider to be injured, the present invention adopts the following technical solutions

Method used

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  • Bicycle chain falling and breaking protection device
  • Bicycle chain falling and breaking protection device
  • Bicycle chain falling and breaking protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1-5 Shown is a bicycle chain fall-off and breakage protection device, which is a bicycle chain fall-off and breakage protection device that can prevent accidents caused by chain fall-off or breakage during riding. Specifically, a bicycle chain fall-off and fracture protection device includes a bicycle body 1 , a limiting device 3 , a chain 5 and a second spring 37 .

[0032] The bicycle body 1 includes a chainstay 2 , a chain plate 4 and a flywheel 6 , and the chain plate 4 and the flywheel 6 are connected by a chain 5 through transmission.

[0033] The limit device 3 is fixedly connected to the side of the rear chain fork 2, the limit device 3 and the chain plate 4 are located on the same side of the bicycle body 1, the limit device 3 is close to the chain plate 4, and the limit device 3 includes a transverse mounting block 31 and The vertical guide block 34 is fixedly arranged on the upper surface of the horizontal installation block 31 , and the vertical...

Embodiment 2

[0040] The difference between another kind of bicycle chain shedding and fracture protection device and embodiment 1 is: as Figure 6 As shown, the arc-shaped protrusion 362 inside the placement groove 361 is replaced with a roller 38 that is rotatably connected to the inside of the placement groove 361, so that the sliding friction between the chain 5 and the placement block 36 is converted into rolling friction, and the friction of the chain 5 is better reduced. wear and tear.

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Abstract

The invention belongs to the technical field of bicycles, and relates to a bicycle chain falling and breaking protection device which is characterized by comprising a bicycle body, a limiting device, a chain and a second spring; the bicycle body comprises a rear lower fork, a chain disc and a flywheel, and the chain disc is in transmission connection with the flywheel through the chain; the limiting device is fixedly connected to the side edge of the rear lower fork, the limiting device and the chain plate are located on the same side of the bicycle body, and the limiting device is close to the chain disc; the limiting device comprises a transverse mounting block and a vertical guide block, the vertical guide block is fixedly arranged on the upper end face of the transverse mounting block, and the vertical guide block is perpendicular to the transverse mounting block. According to the bicycle chain falling and breaking protection device, the limiting device is adopted, a limiting part on a moving block can clamp the tooth part of the chain disc in the first time when the chain falls off or breaks, so that the situation that a rider misses the step and topples when stepping on the pedal forcefully is prevented, the safety of the rider is protected, and accidents are avoided.

Description

technical field [0001] The invention belongs to the technical field of bicycles, and in particular relates to a protection device for a bicycle chain falling off and breaking. Background technique [0002] A bicycle, also known as a bicycle or bicycle, is usually a small land vehicle with two wheels. After a person rides on the car, it is powered by pedals, which is a green and environmentally friendly means of transportation. Bicycles can be used as an environmentally friendly means of transportation for transportation and travel; more and more people use bicycles as fitness equipment for cycling and exercising. [0003] Most of the existing bicycles are chain-type transmission. When the chain is used for a long time, it will need to be maintained urgently in the future or the riding posture is not correct during the riding process. It is easy to suddenly drop the chain or the chain is broken during the riding process. The situation will cause the cyclist to step on the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/00
CPCB62M9/00B62M2009/007
Inventor 李飘
Owner 壹柏(广州)电子商务有限公司