CN204056172U - A kind of pedal gear be applied in bicycle - Google Patents
A kind of pedal gear be applied in bicycle Download PDFInfo
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- CN204056172U CN204056172U CN201420347476.8U CN201420347476U CN204056172U CN 204056172 U CN204056172 U CN 204056172U CN 201420347476 U CN201420347476 U CN 201420347476U CN 204056172 U CN204056172 U CN 204056172U
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- pedal
- vehicle frame
- turning cylinder
- flywheel
- gear
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- 230000002401 inhibitory effect Effects 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 3
- 230000001141 propulsive effect Effects 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 210000002683 foot Anatomy 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 210000002414 leg Anatomy 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 210000000544 articulatio talocruralis Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of pedal gear be applied in bicycle, described pedal gear is arranged on vehicle frame, vehicle frame is L-type structure, the afterbody of vehicle frame is fixed with a door type support upward, top and the bottom of support are all horizontally installed with turning cylinder, be respectively turning cylinder and lower turning cylinder, wherein trailing wheel is fixedly mounted on lower turning cylinder; Described pedal drive machine at least comprises flywheel, pulley, driving band, pedal, drive link and spring, its middle pulley is installed on turning cylinder, flywheel is installed on lower turning cylinder, driving band ringwise, and be arranged between flywheel and pulley, described pedal is arranged on vehicle frame, the front end of pedal and the front portion of vehicle frame hinged, the rear end of pedal is hinged with one end of drive link or be fixedly connected with, and the other end of drive link is on the belt hinged.The bicycle with pedal that the utility model provides to solve in prior art that torsion conversion efficiency is low, propulsive effort is little, reliability is low and the weak point such as the life-span is short.
Description
Technical field
The utility model provides a kind of bicycle adopting novel transmission mode, particularly relates to a kind of pedal gear be applied in bicycle, belongs to technical field of bicycles.
Background technology
At present, known bicycle running part comprises the parts such as pedal, axis, chain wheel, crank, chain, flywheel, rear axle, trailing wheel.By the pedal of manpower treadled cycle, pedal drives crank and chain wheel to move in a circle, and chain wheel pulls flywheel by chain, and flywheel drives trailing wheel rotation forces bicycle to advance.
Existing bicycle drive has the following disadvantages: first torsion conversion efficiency is not high.Existing bicycle is when riding, and when crank is the level of state, the strength that people steps on pedal can make chain wheel export acrotorque; After crank crosses horizontality, trample pedal by equal strength, the torsion that chain wheel exports is less than maxim when crank is level; When crank in vertical state, the strength direction that people steps on pedal is overlapping with the axis center of circle, now firmly steps on pedal, chain wheel but torsionless export, therefore, existing driving device can not convert the pedal force of vertical direction to rotary torsion to greatest extent.It two is that propulsive effort is not enough.Existing bicycle adopts riding in sitting posture, bicycle seat carries the main by weight of human body, the propulsive effort of bicycle mainly shrinks by people's leg muscle and produces power, when only having people's thigh firmly to step on pedal, chain wheel just outputting torsion drives bicycle, and when people's thigh is without power, chain wheel also torsionless exports, the gravitional force of human body does not produce and drives torsion accordingly, so drive the torsion of bicycle large not.
Also there are some in existing market adopts the mode of trampling to provide the bicycle of propulsive effort, but all has some shortcomings part.As proposed Seesaw type bicycle in 200520124631.0 patents, can do work by human bady gravitational, but adopt in the program middle part of pedal and vehicle frame hinged, namely fulcrum is positioned at the middle part of lever, therefore pedal is made to wave the amplitude of oscillation less, and manpower is exerted oneself main by shank firmly and ankle-joint rotate and realize, make the propulsive effort of output limited.Secondly the program adopts the transmission of rigidity rope flywheel wound mode, there is the deficiencies such as reliability is poor, the life-span is short, have impact on the practicality of this bicycle.
200510042245.1 propose double link free wheels scheme in patent, stretcher is stepped on by human body, chain, flywheel is driven to produce torsion by connecting rod, but the program still has the following disadvantages, and the strip shape chain adopted in the program, its one end is connected on connecting rod, the other end is fixed on a tooth of flywheel, chain is around on flywheel, and therefore the anglec of rotation of flywheel can not more than 360 degree, and the diameter of flywheel and girth determine the reciprocal range of chain.When flywheel diameter hour, the reciprocating travel of chain is little, limits the amplitude of oscillation of stretcher, is unfavorable for improving horsepower output; And when adopting major diameter flywheel, the converter speed ratio of flywheel can reduce, be unfavorable for the speed promoting bicycle.Due to the program adopt chain and the ring chain of non-closed, chain tightens mainly by spring tension realize, when the spring selecting pulling force large, the compression effect of chain is good, but adds resistance, and output drive strength can reduce; When the spring selecting pulling force little, chain just easily gets loose, and therefore, this driving device improves in horsepower output and reliability etc. still undesirable at increase propulsive effort.
201310105447.0 propose a kind of driver train and portable bicycle in patent, adopt the rack and pinion occlusion driving rod member, by the rack drives gear of drive spindle, and drive the first wheel disc, ring chain, the second wheel disc by unilateral bearing, propulsive effort is sent to wheel the most at last.This driving device is more complicated, employs tooth bar, gear transmission, manufacture, setting accuracy and vehicle frame rigidity requirement higher, cost is higher, be also unfavorable for increase drive spindle length and the amplitude of oscillation to improve the horsepower output of driving device.
Summary of the invention
The utility model provides a kind of pedal gear be applied in bicycle, to solve in prior art that torsion conversion efficiency is low, propulsive effort is little, reliability is low and the weak point such as the life-span is short.
Realizing the technical scheme that the utility model above-mentioned purpose adopts is:
A kind of pedal gear be applied in bicycle, described pedal gear is arranged on vehicle frame, vehicle frame is L-type structure, the afterbody of vehicle frame is fixed with a door type support upward, top and the bottom of support are all horizontally installed with turning cylinder, be respectively turning cylinder and lower turning cylinder, wherein trailing wheel is fixedly mounted on lower turning cylinder, rotates along with the rotation of lower turning cylinder; Described pedal drive machine at least comprises flywheel, pulley, driving band, pedal, drive link and spring, its middle pulley is installed on turning cylinder, flywheel is installed on lower turning cylinder, driving band ringwise, and is arranged between flywheel and pulley, and described pedal is arranged on vehicle frame, the front end of pedal and the front portion of vehicle frame hinged, the rear end of pedal is hinged with one end of drive link or be fixedly connected with, and the other end of drive link is on the belt hinged, and described spring fitting is between pedal and vehicle frame.
Described pedal bottom surface is provided with hook hole, vehicle frame middle part be provided with an identical hook hole, the head and the tail two ends of spring are connected on two hook holes.
Described pedal gear is provided with 2n (n >=1) cover, is half-and-half distributed in the left and right sides of vehicle frame.
The driving band of annular between described flywheel and pulley, adopts chain gear or belt-driving.
Described vehicle frame is installed with inhibiting device, and inhibiting device is made up of upper limit position block and lower position block, and wherein lower position block is positioned at the below of pedal, and upper limit position block is positioned at the top of pedal.
Described upper limit position block is installed on door type support, and is positioned at the top of the rear end of pedal; Described lower position block is damping spring.
The pedal gear that what the utility model provided be applied in bicycle, this mechanism can transform into high efficiency for the strength of human body pushes pedals the torsion driving bicycle to move ahead, the gravitional force acting of human body can also be made full use of, when the leg muscle of people is not obviously exerted oneself, also the gravitional force of human body can be continued convert torsional force urges bicycle to move ahead, and the reciprocal trip distance of chain can freely design, stretcher is allowed to have the very large amplitude of oscillation, the full stride that people tramples stretcher can be adapted to completely, the obtainable propulsive effort of bicycle and horsepower output are maximized.In addition, due to people on strip shape stretcher, diverse location is trampled time, required strength is different with stride, and therefore, stretcher achieves electrodeless variable-speed function within the specific limits, to adapt to different road conditions, is conducive to the speed of traveling and the distance that improve bicycle.
This device adopts the reciprocating type of drive of ring chain, when tramp with one's feet lower pedal time, the tail end of pedal drives drive link to move downward and extension spring, drive link thus drive driving band to move downward, and then driving flywheel and lower turning cylinder to rotate, lower turning cylinder drives trailing wheel to move ahead; When pin lifts, tail end upward movement under the pulling force effect of spring of pedal, thus drive drive link and driving band to return to reference position.In this process, driving band is all tight between pulley and flywheel, then is aided with other fixing measures, makes the reliable difficult drop-off of conveyor belt motion.And returning spring and lever connecting points design in the position close to fulcrum, the elastic deformation amplitude of spring is little, and above-mentioned design makes this driving device have the advantage of length of simple and reliable life-span.
Accompanying drawing explanation
The integral structure schematic diagram of the pedal gear that Fig. 1 provides for the utility model;
Fig. 2 is working state schematic representation of the present utility model;
In figure: 1-vehicle frame, 2-front fork, 3-front-wheel, 4-trailing wheel, 5-handlebar, 6-support, the upper turning cylinder of 7-, turning cylinder under 8-, 9-flywheel, 10-pulley, 11-driving band, 12-pedal, 13-drive link, 14-spring, 15-hook hole, 16-lower position block, 17-upper limit position block.
Detailed description of the invention
Below in conjunction with specific embodiment, detailed specific description is done to the utility model, but protection domain of the present utility model is not limited to following examples.
Embodiment 1
What the present embodiment provided is applied to the structure of the pedal gear in bicycle as shown in Figure 1, described pedal gear is arranged on vehicle frame 1, described vehicle frame 1 is in L-type structure, the afterbody of vehicle frame 1 is fixed with a door type support 6 upward, top and the bottom of support 6 are all horizontally installed with turning cylinder, be respectively turning cylinder 7 and lower turning cylinder 8, wherein trailing wheel 4 is fixedly mounted on the middle part of lower turning cylinder 8, rotates along with the rotation of lower turning cylinder 8; Described vehicle frame 1 is provided with two cover pedal geares, and described pedal gear is half-and-half distributed in the left and right sides of vehicle frame.
Described pedal gear at least comprises flywheel 9, pulley 10, driving band 11, pedal 12, drive link 13 and spring 14, its middle pulley 10 is installed on turning cylinder 7, flywheel 9 is installed on lower turning cylinder 8, driving band 11 ringwise, and being arranged between flywheel 9 and pulley 10, described driving band 11 is chain or belt.Described pedal 12 is arranged on vehicle frame 1, the front end of pedal 12 and the front portion of vehicle frame hinged, the rear end of pedal 12 is hinged with one end of drive link 13 or be fixedly connected with, the other end of drive link 13 is hinged on driving band 11, described pedal 12 bottom surface is provided with hook hole 15, vehicle frame middle part be provided with an identical hook hole 15, the head and the tail two ends of spring 14 are connected on two hook holes 15.Described vehicle frame is installed with inhibiting device, and inhibiting device is made up of upper limit position block 17 and lower position block 16, and wherein lower position block 16 is positioned at the below of pedal, and upper limit position block 17 is positioned at the top of pedal.Described upper limit position block 17 is installed on door type support, and is positioned at the top of the rear end of pedal; Described lower position block 16 is damping spring.When upper limit position block and lower position block can make pedal travel arrive close to spacing end position, reduce impulsive force and noise, make stretcher action softer, human body is felt comfortably cool.
The working state figure of the pedal gear that the application provides as shown in Figure 2, is applied to, in existing bicycle, replace existing driving device.The bicycle of this application's of have employed pedal gear comprises vehicle frame 1, front fork 2, front-wheel 3, trailing wheel 4 and handlebar 5 and pedal gear, and wherein front-wheel 3 and trailing wheel 4 are only provided with one.In use, single both feet stand on two pedals, when tramp with one's feet lower pedal time, the tail end of pedal drives drive link to move downward and extension spring, drive link thus drive driving band to move downward, and then drive flywheel and lower turning cylinder to rotate, lower turning cylinder drives trailing wheel to move ahead; When pin lifts, tail end upward movement under the pulling force effect of spring of pedal, thus drive drive link and driving band to return to reference position.Alternately step on according to both feet about this step and lift, drive bicycle moving forward.
Claims (6)
1. one kind is applied to the pedal gear in bicycle, it is characterized in that: described pedal gear is arranged on vehicle frame, vehicle frame is L-type structure, the afterbody of vehicle frame is fixed with a door type support upward, top and the bottom of support are all horizontally installed with turning cylinder, be respectively turning cylinder and lower turning cylinder, wherein trailing wheel is fixedly mounted on lower turning cylinder, rotates along with the rotation of lower turning cylinder; Described pedal drive machine at least comprises flywheel, pulley, driving band, pedal, drive link and spring, its middle pulley is installed on turning cylinder, flywheel is installed on lower turning cylinder, driving band ringwise, and is arranged between flywheel and pulley, and described pedal is arranged on vehicle frame, the front end of pedal and the front portion of vehicle frame hinged, the rear end of pedal is hinged with one end of drive link or be fixedly connected with, and the other end of drive link is on the belt hinged, and described spring fitting is between pedal and vehicle frame.
2. the pedal gear be applied in bicycle according to claim 1, is characterized in that: described pedal bottom surface is provided with hook hole, vehicle frame middle part be provided with an identical hook hole, the head and the tail two ends of spring are connected on two hook holes.
3. the pedal gear be applied in bicycle according to claim 1, is characterized in that: described pedal gear is provided with 2n (n >=1) cover, is half-and-half distributed in the left and right sides of vehicle frame.
4. the pedal gear be applied in bicycle according to claim 1, is characterized in that: the driving band of annular between described flywheel and pulley, adopts chain gear or belt-driving.
5. the pedal gear be applied in bicycle according to claim 1, it is characterized in that: described vehicle frame is installed with inhibiting device, inhibiting device is made up of upper limit position block and lower position block, and wherein lower position block is positioned at the below of pedal, and upper limit position block is positioned at the top of pedal.
6. the pedal gear be applied in bicycle according to claim 1, is characterized in that: described upper limit position block is installed on door type support, and is positioned at the top of the rear end of pedal; Described lower position block is damping spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420347476.8U CN204056172U (en) | 2014-06-26 | 2014-06-26 | A kind of pedal gear be applied in bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420347476.8U CN204056172U (en) | 2014-06-26 | 2014-06-26 | A kind of pedal gear be applied in bicycle |
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| Publication Number | Publication Date |
|---|---|
| CN204056172U true CN204056172U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420347476.8U Expired - Fee Related CN204056172U (en) | 2014-06-26 | 2014-06-26 | A kind of pedal gear be applied in bicycle |
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| Country | Link |
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| CN (1) | CN204056172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600275A (en) * | 2017-10-16 | 2018-01-19 | 张晓铮 | A kind of shift drive mechanism |
-
2014
- 2014-06-26 CN CN201420347476.8U patent/CN204056172U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600275A (en) * | 2017-10-16 | 2018-01-19 | 张晓铮 | A kind of shift drive mechanism |
| CN107600275B (en) * | 2017-10-16 | 2023-08-04 | 张晓铮 | Variable speed driving mechanism |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |