CN2077420U - Cross-country bicycle with two-stage speed variation - Google Patents
Cross-country bicycle with two-stage speed variation Download PDFInfo
- Publication number
- CN2077420U CN2077420U CN 90217467 CN90217467U CN2077420U CN 2077420 U CN2077420 U CN 2077420U CN 90217467 CN90217467 CN 90217467 CN 90217467 U CN90217467 U CN 90217467U CN 2077420 U CN2077420 U CN 2077420U
- Authority
- CN
- China
- Prior art keywords
- sprocket wheel
- stage speed
- sprocket
- chain
- utility
- 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.)
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Abstract
The utility model relates to a cross-country bicycle with two-stage speed variation, which is characterized in that sprockets (8) and (9) with different diameters are installed on a sitting tube of a stool of a tripod a bicycle; a sprocket (6) is connected with the sprocket (8) by a chain (7); the sprocket (9) is connected with a fly wheel (11) by a chain (10), and a pedal crank (12) is lengthened. The utility model which has the characteristics of high speed, labor saving and simple structure, is suitable for the bicycles of various specifications and models.
Description
The utility model relates to a kind of two stage speed change Mountain bike.
Existing bicycle generally has only the one-level chain sprocket drive, and speed is slow.
The purpose of this utility model just provides that a kind of speed is fast, the two stage speed change Mountain bike of labour-saving.
Solution of the present utility model is such: between sprocket wheel (6) and flywheel (11) the different sprocket wheel of diameter (8), (9) are housed.Sprocket wheel (8), (9) connect as one and are contained on axis (5), the bearing seat (4), and bearing seat (4) is mounted in the spider bench and sits on the pipe; Be connected by chain (7) between sprocket wheel (6) and the sprocket wheel (8), be connected by chain (10) between sprocket wheel (9) and the flywheel (11), the selection of sprocket wheel teeth is like this: sprocket wheel (6) is 48 teeth, and sprocket wheel (8) is 18 teeth, sprocket wheel (9) is 48 teeth, and flywheel (11) is 18 teeth.Like this, first converter speed ratio is 48:18=2.7, and second converter speed ratio is 48:18=2.7, and two stage speed change is than 2.7 * 2.7=7.29.Therefore, adopt the utility model, the bicycle speed of a motor vehicle is very fast.
For solving laborsaving problem, the utility model will be ridden crank (12) lengthening, thereby obtain the lever force that doubles.
The speed that the utility model has the advantages that is fast, laborsaving, simple in structure.
Embodiment of the present utility model is as shown in drawings:
Accompanying drawing (1) is the structural principle scheme drawing.
Accompanying drawing (2) is the adjustment structure scheme drawing.
In the present embodiment, bearing seat (4) is to be welded on the regulating sleeve (3), and regulating sleeve (3) is to be enclosed within the spider bench to sit on the pipe.Have on the regulating sleeve (3) to connect and adjust screw, after regulating sleeve (3) mixes up the position, adjust the screw place in connection and be fixed with screw.Regulating sleeve (3) is that line of centers cuts vertically, is enclosed within the spider bench and sits on the pipe, the two halves that cut is welded again, and can be enclosed within and sit on the pipe.Foot-operated crank (12) is than the foot-operated crank lengthening of standard 80mm, and promptly length overall is 250mm.
The utility model is when implementing, and the tooth number of sprocket wheel (6), (8), (9) can optionally be determined.
Claims (3)
1, a kind of two stage speed change Mountain bike includes wheel, spider, foot-operated and sprocket transmission device.It is characterized in that between sprocket wheel (6) and the flywheel (11) the different sprocket wheel of diameter (8), (9) being housed; Be connected by chain (7) between sprocket wheel (6) and the sprocket wheel (8); Be connected by chain (10) between sprocket wheel (9) and the flywheel (11); Foot-operated crank (12) lengthening.
2, two stage speed change Mountain bike according to claim 1 is characterized in that sprocket wheel (8), (9) are to be contained on axis (5), the bearing seat (4), and bearing seat (4) is mounted in the spider bench and sits on the pipe.
3, two stage speed change Mountain bike according to claim 2 is characterized in that bearing seat (4) is to be welded on the regulating sleeve (3), and regulating sleeve (3) is enclosed within the spider bench and sits on the pipe, has on the regulating sleeve (3) to connect to adjust screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90217467 CN2077420U (en) | 1990-08-04 | 1990-08-04 | Cross-country bicycle with two-stage speed variation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90217467 CN2077420U (en) | 1990-08-04 | 1990-08-04 | Cross-country bicycle with two-stage speed variation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2077420U true CN2077420U (en) | 1991-05-22 |
Family
ID=4896457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90217467 Withdrawn CN2077420U (en) | 1990-08-04 | 1990-08-04 | Cross-country bicycle with two-stage speed variation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2077420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564556A (en) * | 2016-01-05 | 2016-05-11 | 费林宝 | Substantially updated bicycle |
-
1990
- 1990-08-04 CN CN 90217467 patent/CN2077420U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564556A (en) * | 2016-01-05 | 2016-05-11 | 费林宝 | Substantially updated bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |