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Bicycle speed changing device, speed changing bicycle and method

A technology for shifting devices and bicycles, which is applied to bicycle accessories, vehicle gearboxes, circuit devices, etc., can solve the problems of inconvenient operation, affecting riding experience, unable to achieve the transmission ratio of the front chainring and rear chainring, etc. Good operation experience, easy operation, and avoid the effect of chain drop

Pending Publication Date: 2019-12-31
SHANDONG AGRI & ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventors found that the existing transmission of the self-speed bike is changed by the rider himself, and the operation is inconvenient, especially when the bike with the speed change is first used, it is impossible to achieve a suitable transmission of the front chainring and the rear chainring according to the road conditions ratio, which affects the riding experience

Method used

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  • Bicycle speed changing device, speed changing bicycle and method
  • Bicycle speed changing device, speed changing bicycle and method
  • Bicycle speed changing device, speed changing bicycle and method

Examples

Experimental program
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Embodiment 2

[0045] This embodiment discloses a bicycle with variable speed, such as Figure 1-4Shown, comprise bicycle body, described bicycle body comprises vehicle frame 1, front wheel, rear wheel 2, pedal, a front chainring and three rear chainrings 3, its structure and connection mode are the same as those of existing variable speed bicycles The connection methods are the same, and will not be described in detail here.

[0046] Define the side where the front wheel of the bicycle is located as the front side, and the side where the rear wheel is located as the rear side.

[0047] The bicycle body is equipped with the bicycle transmission device described in Embodiment 1. Specifically, the bottom end of the frame at the rear wheel is located below the rear side of the rear wheel shaft of the bicycle, and one end of the fixed rod 4 is connected to the frame at the rear wheel. The bottom end is rotatably connected, and one end of the spring 5 is fixedly connected with the fixed rod, and...

Embodiment 3

[0054] This embodiment discloses a speed change method for a variable-speed bicycle: the speed range corresponding to when the bicycle front chainring and different rear chainrings are connected through a chain is set in advance in the Basra control board, and the bicycle front chainring is set to pass through different rear chainrings. The range of inclination of the bike when the chain is connected.

[0055] During riding, when driving on a flat or downhill road, the inclination value detected by the inclination sensor is within the set range. At this time, the Basra control board can only control the work of the steering gear according to the information collected by the 3144 Hall sensor. Use the 3144 Hall sensor and magnet to get the speed information of the bicycle, and transmit it to the Basra control board. The Basra control board judges the range of the collected speed information, and then sends instructions to the steering gear. The steering gear drives the pendulum t...

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Abstract

The invention relates to a bicycle speed changing device, a speed changing bicycle and method. The bicycle speed changing device comprises a speed detecting mechanism, a tilt angle sensor, a back dialing mechanism, and a controller, wherein the speed detecting mechanism is used for being mounted on a spoke of a back wheel of a bicycle; the tilt angle sensor is used for being fixedly connected witha frame of the bicycle; and the back dialing mechanism comprises a fixing rod used for being partially and rotatably connected with the frame at the back wheel of the bicycle, a driving mechanism isfixed on the fixing rod, the fixing rod is connected with one end of an elastic piece, the other end of the elastic piece is used for being connected with the frame at the back wheel of the bicycle, the driving mechanism is connected with a swing rod, the swing rod is fixedly connected with a middle shaft, the middle shaft is rotatably connected with a first tooth disc, and a chain of the bicyclecan be connected with the first tooth disc in a rotating mode; and the controller is used for being fixed on the frame of the bicycle and connected with the speed detecting device, the tilt angle sensor and the driving mechanism. By means of the bicycle speed changing device, the experience of a cycling person is high.

Description

technical field [0001] The invention relates to the technical field of bicycles, in particular to a bicycle speed change device, a speed change bicycle and a method. Background technique [0002] The variable speed bicycle has a speed change device. The function of the speed change device is to change the matching ratio of the chain and the different front and rear gear plates to change the speed of the vehicle. Strength, the larger the front chainring, the smaller the rear chainring, the harder it is to pedal. The smaller the front chainring, the larger the rear chainring, the easier it is to pedal. According to the ability of different riders, you can adjust it The size of the front and rear chainrings can adjust the speed of the bicycle, or deal with different road sections and road conditions. [0003] The inventors found that the existing transmission of the self-speed bike is changed by the rider himself, and the operation is inconvenient, especially when the bike wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/126B62J99/00H02J7/35
CPCB62M9/126B62J99/00H02J7/35
Inventor 赵志桓徐现乐郭永鹏孙圆王壮壮刘雨生唐雪娇王会虎王富升刘瑞敏郭英华乔大壮时钧彪廖希杰
Owner SHANDONG AGRI & ENG UNIV
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