CN203767014U - Bicycle accelerator - Google Patents
Bicycle accelerator Download PDFInfo
- Publication number
- CN203767014U CN203767014U CN201420113610.8U CN201420113610U CN203767014U CN 203767014 U CN203767014 U CN 203767014U CN 201420113610 U CN201420113610 U CN 201420113610U CN 203767014 U CN203767014 U CN 203767014U
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- CN
- China
- Prior art keywords
- gear
- bicycle
- accelerator
- dual
- tooth number
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Abstract
The utility model belongs to the field of bicycles and particularly relates to a bicycle accelerator. The bicycle accelerator comprises a first gear, a duplicate gear, a supporting shaft and a second gear, wherein the first gear is installed on a spindle driven by a pedal connecting rod, the supporting shaft is fixed on a bicycle frame, the duplicate gear is installed on the supporting shaft though a bearing, a small gear of the duplicate gear is meshed with the first gear, the tooth number of the small gear is smaller than the tooth number of the first gear, a large gear of the duplicate gear is meshed with the second gear, the tooth number of the large gear is larger than the tooth number of the second gear, the second gear is welded with a main chain wheel of a bicycle to form an integral structure, the second gear is coaxial with the main chain wheel, and the integral structure is installed on the spindle through the bearing. The bicycle accelerator is reasonable in structure and can achieve strength-saving and speed-keeping purposes through two-step acceleration when is ridden normally and climbs or runs against the wind. The whole bicycle accelerator has the advantages of being simple in structure and low in manufacture cost, is convenient to maintain and facilitates large-scale popularization and application.
Description
Technical field
The utility model relates to a kind of bicycle accelerator, belongs to bicycle field.
Background technology
Conventionally, people often can run into and go up a slope or situation against the wind in traveling process by bike, now, ride cycling start and come hard and the speed of a motor vehicle is slow; At present, also have many people to ride variable speed bicycle, usually by bike time, driven the miniature gears of back by big gear wheel in front, realize accelerating action, but in climbing or while running into against the wind, gear need to be adjusted into pre-small post-large, although reached like this labour-saving object by bike, but the speed of a motor vehicle also declines thereupon, out of reach is not only laborsaving but also keep the effect of the fast speed of a motor vehicle, and the common complex structure of current derailleur, cost are high, easily go wrong and easy-maintaining not, and to a big chunk, crowd is inapplicable.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of simple and reasonable, in climbing or not only laborsaving but also can keep the bicycle accelerator of the fast speed of a motor vehicle while running into against the wind.
Bicycle accelerator described in the utility model, comprise the first gear, dual gear, pivot shaft and the second gear, the first gear is arranged on the main shaft being driven by pedal connecting rod, pivot shaft is fixed on cycle frame, dual gear is arranged on pivot shaft by bearing, the miniature gears of dual gear engages with the first gear and its number of teeth is less than the first gear, the big gear wheel of dual gear engages with the second gear and its number of teeth is greater than the second gear, the second gear is by the integrally welded structure of head sprocket of connecting portion and bicycle, the second gear and head sprocket coaxial line, this integrative-structure is arranged on main shaft by bearing.
Principle of work and process:
By bike time, people's pin is stepped on pedal and by pedal connecting rod, power is passed to main shaft, drive the first gear to rotate, the dual gear that the first gear driven engages with it rotates, because the miniature gears number of teeth of dual gear is less than the first gear, therefore can realize one-level accelerates, the big gear wheel of dual gear drives the second gear engaging with it to rotate simultaneously, because the big gear wheel number of teeth of dual gear is greater than the first gear, therefore can realize secondary accelerates, accelerate by two-stage, the rotating speed of the second gear is pedaled the speed of pedal far away higher than people, the rotating speed of head sprocket connecting with the second gear one is also synchronizeed raising, thereby reach the object of acceleration, like this, in the time climbing or run into against the wind, can reach effect laborsaving and the fast speed of a motor vehicle of maintenance simultaneously.
The beneficial effect that the utility model compared with prior art had is:
This bicycle accelerator is rational in infrastructure, accelerate by two-stage, no matter in the time normally travelling, or in climbing or against the wind time, can reach not only laborsaving, but also can keep the object of the fast speed of a motor vehicle; That entirety has advantages of is simple in structure, cost of manufacture is low, easy to maintenance, is convenient to large-scale promotion application.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1, pedal; 2, pedal connecting rod; 3, main shaft; 4, the first gear; 5, cycle frame; 6, pivot shaft; 7, dual gear; 8, head sprocket; 9, connecting portion; 10, the second gear.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, this bicycle accelerator comprises the first gear 4, dual gear 7, pivot shaft 6 and the second gear 10, the first gear 4 is arranged on the main shaft 3 being driven by pedal connecting rod 2, pivot shaft 6 is fixed on cycle frame 5, dual gear 7 is arranged on pivot shaft 6 by bearing, the miniature gears of dual gear 7 engages with the first gear 4 and its number of teeth is less than the first gear 4, the big gear wheel of dual gear 7 engages with the second gear 10 and its number of teeth is greater than the second gear 10, the second gear 10 is the integrally welded structure of head sprocket 8 with bicycle by connecting portion 9, the second gear 10 and head sprocket 8 coaxial lines, this integrative-structure is arranged on main shaft 3 by bearing.
In the present embodiment, the number of teeth of the first gear 4 is 36, the miniature gears number of teeth of dual gear 7 is 18, the big gear wheel number of teeth is 36, the number of teeth of the second gear 10 is 18, like this, by bike time, people's pin is stepped on pedal 1 and by pedal connecting rod 2, power is passed to main shaft 3, drive the first gear 4 to rotate, the first gear 4 drives the dual gear 7 engaging with it to rotate, because the number of teeth of the first gear 4 is 2 times of the miniature gears number of teeth of dual gear 7, therefore dual gear 7 rotating speeds are 2 times of the first gear 4, realize one-level acceleration, the big gear wheel of dual gear 7 drives the second gear 10 engaging with it to rotate simultaneously, because the big gear wheel number of teeth of dual gear 7 is 2 times of first gear 4 numbers of teeth, therefore the rotating speed of the second gear 10 is 2 times of dual gear 7, thereby realizing secondary accelerates.Can realize two-stage by this bicycle accelerator accelerates, the rotating speed of the second gear 10 improves to behave pedals 4 times of pedal 1 speed, because head sprocket 8 is connected by connecting portion 9 one with the second gear 10, therefore the rotating speed of head sprocket 8 also synchronously improves to behave and pedals 4 times of pedal 1 speed, thereby reach the object of acceleration, like this, in the time climbing or run into against the wind, can reach effect laborsaving and the fast speed of a motor vehicle of maintenance simultaneously.
Except above-mentioned points, this bicycle accelerator also have advantages of simple and reasonable, cost of manufacture is low, easy to maintenance, is convenient to large-scale promotion application.
Claims (1)
1. a bicycle accelerator, it is characterized in that: comprise the first gear (4), dual gear (7), pivot shaft (6) and the second gear (10), the first gear (4) is arranged on the main shaft (3) being driven by pedal connecting rod (2), pivot shaft (6) is fixed on cycle frame (5), dual gear (7) is arranged on pivot shaft (6) by bearing, the miniature gears of dual gear (7) engages with the first gear (4) and its number of teeth is less than the first gear (4), the big gear wheel of dual gear (7) engages with the second gear (10) and its number of teeth is greater than the second gear (10), the second gear (10) is the integrally welded structure of head sprocket (8) with bicycle by connecting portion (9), the second gear (10) and head sprocket (8) coaxial line, this integrative-structure is arranged on main shaft (3) by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113610.8U CN203767014U (en) | 2014-03-13 | 2014-03-13 | Bicycle accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113610.8U CN203767014U (en) | 2014-03-13 | 2014-03-13 | Bicycle accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203767014U true CN203767014U (en) | 2014-08-13 |
Family
ID=51284235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420113610.8U Expired - Fee Related CN203767014U (en) | 2014-03-13 | 2014-03-13 | Bicycle accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203767014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480372A (en) * | 2014-09-15 | 2016-04-13 | 杨小全 | Less effort speed changer |
-
2014
- 2014-03-13 CN CN201420113610.8U patent/CN203767014U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480372A (en) * | 2014-09-15 | 2016-04-13 | 杨小全 | Less effort speed changer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20210313 |