CN2300581Y - Two-stage gearing bicycle - Google Patents
Two-stage gearing bicycle Download PDFInfo
- Publication number
- CN2300581Y CN2300581Y CN 97213429 CN97213429U CN2300581Y CN 2300581 Y CN2300581 Y CN 2300581Y CN 97213429 CN97213429 CN 97213429 CN 97213429 U CN97213429 U CN 97213429U CN 2300581 Y CN2300581 Y CN 2300581Y
- Authority
- CN
- China
- Prior art keywords
- wheel
- driving chain
- bicycle
- chain
- driving
- 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
Links
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The utility model relates to a two-stage driving bicycle. In order to solve the problem of desquamation of a chain of an existing bicycle, the utility model changes a driving system to a two-stage driving; a stepped wheel is added between a chain wheel of a middle shaft and a flywheel of a back wheel; the stepped wheel and a back driving chain wheel are fixed on the same shaft center through a driving chain wheel of a chain; thereby, the desquamation of a chain can be prevented.
Description
The utility model belongs to technical field of bicycles, relates to a kind of improvement of bicycle.
At present, the driving system of the ordinary bicycle on the market is to drive the axis big trochal disc by pedal, by the rotation that chain drives the back flying wheel bicycle is advanced by the axis big trochal disc forward again, the axis big trochal disc is connected with a chain between the flying wheel with the back, chain is very long, in bicycle was advanced process, chain was easy to come off.
The purpose of this utility model provides a kind of secondary driving bicycle that prevents chain releasing.
The technical solution of the utility model is: change the driving system of bicycle into the secondary transmission, a middle cone pulley of being made up of preceding driving chain wheel and back driving chain wheel is installed between axis sprocket wheel and back flying wheel, before driving chain wheel and back driving chain wheel in same axle center, and be fixed on the cross bar; Between axis sprocket wheel and the preceding driving chain wheel preceding driving chain is housed; Between back driving chain wheel and the back flying wheel back driving chain is housed.
The utility model reduces the length of chain owing to increased a middle cone pulley, and the good effect that has prevented chain releasing is arranged.
Fig. 1 is a scheme drawing of the present utility model.
Below in conjunction with description of drawings embodiment of the present utility model:
8 is front-wheels, the 9th in the utility model, trailing wheel, the 10th, vehicle frame, axis sprocket wheel 1 is under the drive of pedal, drive preceding driving chain wheel 4 by preceding driving chain 2, preceding driving chain wheel 4 drives the back driving chain wheel 3 that is fixed on same axle center with it, back driving chain wheel 3 drives back flying wheel 6 by back driving chain 5 again, thereby has finished transmission process of the present utility model; Preceding driving chain wheel 4 is fixed on the cross bar 7 with the cone pulley that back driving chain wheel 3 is formed.
Claims (1)
1, a kind of secondary driving bicycle, it is made up of vehicle frame (10), front-wheel (8), trailing wheel (9), axis sprocket wheel (1), back flying wheel (6), it is characterized in that: change the driving system of bicycle into the secondary transmission, a middle cone pulley of being made up of preceding driving chain wheel (4) and back driving chain wheel (3) is installed between axis sprocket wheel (1) and back flying wheel (6), before driving chain wheel (4) and back driving chain wheel (3) in same axle center, and be fixed on the cross bar (7); Between axis sprocket wheel (1) and the preceding driving chain wheel (4) preceding driving chain (2) is housed; Back driving chain (5) is housed between back driving chain wheel (3) and the back flying wheel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97213429 CN2300581Y (en) | 1997-04-01 | 1997-04-01 | Two-stage gearing bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97213429 CN2300581Y (en) | 1997-04-01 | 1997-04-01 | Two-stage gearing bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300581Y true CN2300581Y (en) | 1998-12-16 |
Family
ID=33931212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97213429 Expired - Fee Related CN2300581Y (en) | 1997-04-01 | 1997-04-01 | Two-stage gearing bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300581Y (en) |
-
1997
- 1997-04-01 CN CN 97213429 patent/CN2300581Y/en not_active Expired - Fee Related
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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 |