CN2316243Y - Shifting gear bicycle - Google Patents
Shifting gear bicycle Download PDFInfo
- Publication number
- CN2316243Y CN2316243Y CN 98202779 CN98202779U CN2316243Y CN 2316243 Y CN2316243 Y CN 2316243Y CN 98202779 CN98202779 CN 98202779 CN 98202779 U CN98202779 U CN 98202779U CN 2316243 Y CN2316243 Y CN 2316243Y
- Authority
- CN
- China
- Prior art keywords
- gear
- bicycle
- speed
- gears
- clutch transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a shifting gear bicycle. A middle shaft seat of a bicycle is used for being changed into a gear shifting gear box, and a driven wheel is driven by a driving wheel on a middle shaft to rotate. A shifting rod is used for controlling the driven wheel, and is respectively engaged with a high speed gear, a medium speed gear, and a low speed gear which are fixed on gear fixing sleeves. Chain gears are driven by the high speed gear, the medium speed gear, and the low speed gear to rotate. The bicycle is driven by chains to advance at a high speed, a medium speed and a low speed. A speed change transmission system is closed. The engaging surface of the speed change transmission system is free from dust pollution. The shifting gear bicycle is not easily abraded, and the service life of the shifting gear bicycle is long. The speed change operation of the shifting gear bicycle is simple, flexible, and reliable.
Description
The utility model relates to a kind of gear variable block bicycle, especially refer to utilize the bicycle middle shaft seat is transformed into the variable block gear case, this new gear variable block bicycle, speed ratio changes greatly, can adapt to the use of different roads, can be used as all ages and classes level people's the vehicle and exerciser.
At present, variable speed bicycle be between conversion axis wheel disc and flywheel cone pulley by the drive connection of chain, weak point is: outside its driving system was exposed to, its active flank was subjected to contamination by dust, easily wearing and tearing, the life-span is short; Its change speed bimanualness, complex operation simultaneously between conversion axis wheel disc and flywheel cone pulley during the drive connection by chain, is operated when inharmonious, damages the gear teeth of chain and axis wheel disc and flywheel cone pulley easily.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of new gear variable block bicycle is provided, at present, along with China's rapid economic development, greatly improve on the highway communication road surface, road surface of the high utmost point from the city to the rural area, the whole nation develops rapidly, this is ancient to bicycle for people, the vehicle of tradition and cleaning, propose new requirement, promptly under the situation that human body may bear, improved the speed of existing bicycle as far as possible, the needs of the different roads of simultaneous adaptation, this new gear variable block bicycle, its variable ratio drive system is closed, and its active flank is not subjected to contamination by dust, be not easy wearing and tearing, the life-span is long; Its change speed is simple to operate, flexible and reliable.
The purpose of this utility model can reach by following measure: the bicycle middle shaft seat is transformed into variable ratio drive system, and its structure is as follows:
The inside and outside bearing fixing of bicycle middle shaft by bearing and gear fixed cover is on the axis drum, and its axis from left to right is arranged in order and is gear fixed cover and driving wheel, and its driving wheel is fixed on the axis;
The gear fixed cover from left to right is arranged in order and is sprocket gear, low speed gear, intermediate gear and high speed gear, and fixed thereon;
A side is by bearing fixing one castellated shaft on the axis drum, on castellated shaft, from left to right be followed successively by clutch transmission gear, gear and ring gear with two gears, its castellated shaft can drive the clutch transmission gear with two gears and rotate also and can endwisely slip on castellated shaft, the big gear wheel of clutch transmission gear with two gears is right and have bayonet socket with the left side of gear, its gear rotates on castellated shaft, and ring gear is fixed on the castellated shaft;
In the middle of having the clutch transmission gear of two gears, be provided with a driving lever.
The utility model has following advantage compared to existing technology:
1. its new gear variable block bicycle, its variable ratio drive system are closed in the axis drum, and its active flank is not subjected to contamination by dust, are not easy wearing and tearing, and the life-span is long;
2. the variable block of the change speed of its new gear variable block bicycle is simple to operate, flexible and reliable.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:
[illustrating]
Fig. 1. be the variable ratio drive system schematic appearance of the utility model new gear variable block bicycle;
Fig. 2. be the variable ratio drive system scheme drawing of the utility model new gear variable block bicycle.
[figure number explanation]
1 ... axis drum 2 ... axis
3 ... driving gear 4 ... high speed gear
5 ... floral axis key 6 ... ring gear
7 ... gear 8 ... clutch transmission gear
9 ... driving lever 10 ... intermediate gear
11 ... low speed gear 12 ... chain pitch wheel
13 ... the gear fixed cover
See also Fig. 1, shown in Figure 2, this variable ratio drive system can be divided into high speed, middling speed, low speed three retaining speed changes, existing its speed-change process that illustrates respectively:
During high speed: driving lever 9 makes the clutch transmission gear 8 with two gears by low order end, the bayonet socket that then has the bayonet socket of big gear wheel of clutch transmission gear 8 of two gears and a gear 7 is carved and is closed, when the pedal step is rotated axis 2, driving wheel 3 is fixed on the axis 2, driving wheel 3 rotates, driving ring gear 6 rotates, ring gear 6 drives castellated shaft 5 and rotates, castellated shaft 5 drives the clutch transmission gear 8 with two gears and rotates, because having the bayonet socket of the bayonet socket of big gear wheel of clutch transmission gear 8 of two gears and gear 7 carves and closes, then the high speed gear on the gear 7 driven gear fixed covers 13 4 rotates, because high speed gear 4 and chain pitch wheel 12 are fixed on the gear fixed cover 13, then chain pitch wheel 12 advances at utmost speed by chain drive bicycle.
During middling speed: driving lever 9 makes the clutch transmission gear 8 with two gears by middle, make the big gear wheel and 10 engagements of the intermediate gear on the gear fixed cover 13 of clutch transmission gear 8 with two gears, because intermediate gear 10 is fixed on the gear fixed cover 13 with chain pitch wheel 12, then chain pitch wheel 12 advances by chain drive bicycle middling speed.
During low speed: driving lever 9 makes the end that keeps left of the clutch transmission gear 8 with two gears, make the miniature gears and 11 engagements of the low speed gear on the gear fixed cover 13 of clutch transmission gear 8 with two gears, because low speed gear 10 is fixed on the gear fixed cover 13 with chain pitch wheel 12, then chain pitch wheel 12 drives the bicycle ease ahead by chain.
This new gear variable block bicycle, its variable ratio drive system is closed, and its active flank is not subjected to contamination by dust, is not easy wearing and tearing, and the life-span is long; Its change speed is simple to operate, flexible and reliable.Speed ratio changes greatly, can adapt to different road usages, can be used as all ages and classes level people's the vehicle and exerciser.
Claims (1)
1. a new gear variable block bicycle is transformed into variable ratio drive system with the bicycle middle shaft seat, it is characterized in that:
The inside and outside bearing fixing of bicycle middle shaft by bearing and gear fixed cover is on the axis drum, and its axis from left to right is arranged in order and is gear fixed cover and driving wheel, and its driving wheel is fixed on the axis;
The gear fixed cover from left to right is arranged in order and is sprocket gear, low speed gear, intermediate gear and high speed gear, and fixed thereon;
A side is by bearing fixing one castellated shaft on the axis drum, on castellated shaft, from left to right be followed successively by clutch transmission gear, gear and ring gear with two gears, its castellated shaft can drive the clutch transmission gear with two gears and rotate also and can endwisely slip on castellated shaft, have the big gear wheel right side of clutch transmission gear of two gears and the left side of gear and have bayonet socket, its gear rotates on castellated shaft, and ring gear is fixed on the castellated shaft;
In the middle of having the clutch transmission gear of two gears, be provided with a driving lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202779 CN2316243Y (en) | 1998-03-30 | 1998-03-30 | Shifting gear bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98202779 CN2316243Y (en) | 1998-03-30 | 1998-03-30 | Shifting gear bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2316243Y true CN2316243Y (en) | 1999-04-28 |
Family
ID=33959762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98202779 Expired - Fee Related CN2316243Y (en) | 1998-03-30 | 1998-03-30 | Shifting gear bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2316243Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355623C (en) * | 2005-07-22 | 2007-12-19 | 罗明端 | Foot operated speed changer of bicycle |
| CN106476977A (en) * | 2015-08-26 | 2017-03-08 | 张琳婕 | One kind is squeezed the juice flowing car for selling |
-
1998
- 1998-03-30 CN CN 98202779 patent/CN2316243Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355623C (en) * | 2005-07-22 | 2007-12-19 | 罗明端 | Foot operated speed changer of bicycle |
| CN106476977A (en) * | 2015-08-26 | 2017-03-08 | 张琳婕 | One kind is squeezed the juice flowing car for selling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| MM1K | Cease caused by non payment of annual fee |