CN2795003Y - Three chain bicycle - Google Patents
Three chain bicycle Download PDFInfo
- Publication number
- CN2795003Y CN2795003Y CN 200520040288 CN200520040288U CN2795003Y CN 2795003 Y CN2795003 Y CN 2795003Y CN 200520040288 CN200520040288 CN 200520040288 CN 200520040288 U CN200520040288 U CN 200520040288U CN 2795003 Y CN2795003 Y CN 2795003Y
- Authority
- CN
- China
- Prior art keywords
- sprocket
- chain
- piece
- flywheel
- bicycle
- 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
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model relates to a three-chain bicycle characterized in that a rear wheel is provided with a flywheel; a bicycle frame is provided with a pedal rod which is connected with a sprocket; two groups of sprocket sheets are arranged between the sprocket and the flywheel, wherein one group of sprocket sheets comprise sprocket sheets 3 and 4, and a chain 5; the other group of sprocket sheets comprise sprocket sheets 6 and 7, and a chain 8; the sprocket 1 is connected with the sprocket sheet 3 by a chain 2; the sprocket sheets 4 and 6 are connected by the chain 5; the sprocket sheet 7 is connected with the flywheel by the chain 8. When in use, the three-chain bicycle of the utility model is additionally provided with the two groups of sprocket sheets between the sprocket and the flywheel of a traditional bicycle. The wheel size of the three-chain bicycle is shortened and is only 1/4 of the size of the traditional bicycle; not only the length of a bicycle body is shortened but also the weight of the bicycle body is lightened; adopting the three-chain structure, the speed ratio of the sprocket and the flywheel is enlarged by multiple times; thus, though wheels are small, the speed level of the traditional bicycle still can be reached.
Description
Technical field:
The utility model relates to the technical field of bicycle, specifically a kind of three chain type bicycles.
Background technology:
Traditional bicycle all is the strand bicycle at present, and this frame is long, wheel is big, so that disperse weight, and inconvenience is laid and carried.
Summary of the invention:
The purpose of this utility model is to provide a kind of improved three chain type bicycles, and it can overcome the some shortcomings that vehicle body is long in the prior art, car body is heavy, inconvenience is laid and carry.
To achieve these goals, the technical solution of the utility model is: a kind of three chain type bicycles, it mainly comprises vehicle frame, before connected to ground, trailing wheel and be located at vehicle seat and handlebar on the vehicle frame, it is characterized in that: trailing wheel is provided with flywheel, vehicle frame is provided with treadle, treadle links to each other with a sprocket wheel, be provided with two groups of sprocket pieces between sprocket wheel and the flywheel, wherein one group of sprocket piece comprises sprocket piece 3,4 and chain 5, another group sprocket piece comprises sprocket piece 6,7 and chain 8, sprocket wheel 1 is connected by chain 2 with sprocket piece 3, is connected by chain 5 between sprocket piece 4 and the sprocket piece 6, is connected by chain 8 between sprocket piece 7 and the flywheel.
Three chain type bicycles of the present utility model are to have increased by two groups of sprocket pieces between the sprocket wheel of standard bicycle and flywheel during use, this three chain type bicycles can dwindle the size of wheel greatly, it only is 1/4 of standard bicycle, not only shortened the weight that bodywork length has also alleviated car body, owing to adopt the structure of three chain types, the revolution ratio of sprocket wheel and flywheel is by many times of amplifications, though therefore wheel is less, but still can reach the velocity level of standard bicycle.
Description of drawings:
Fig. 1 is the structural representation of the utility model one embodiment
Fig. 2 is the drive mechanism figure of the utility model sprocket wheel and flywheel
The specific embodiment:
The utility model will be further described below in conjunction with drawings and Examples.
A kind of three chain type bicycles of the utility model, it mainly comprises vehicle frame, front and rear wheel connected to ground and is located at vehicle seat and handlebar on the vehicle frame, it is characterized in that: trailing wheel is provided with flywheel, vehicle frame is provided with treadle, treadle links to each other with a sprocket wheel, be provided with two groups of sprocket pieces between sprocket wheel and the flywheel, wherein one group of sprocket piece comprises sprocket piece 3,4 and chain 5, and another group sprocket piece comprises sprocket piece 6,7 and chain 8; Sprocket wheel 1 is connected by chain 2 with sprocket piece 3, is connected by chain 5 between sprocket piece 4 and the sprocket piece 6, is connected by chain 8 between sprocket piece 7 and the flywheel; Each group sprocket piece is made up of small one and large one two sprocket pieces and a chain, connects by bearing fixing between two sprocket pieces of size; Hinge wheel sheet diameter 9.5-10.2 centimetre is distributed with 24 teeth equably around the sprocket piece; Minor sprocket sheet diameter 3.3-3.5 centimetre is distributed with 8 teeth equably around the sprocket piece.
In force, every group of sprocket piece all is to be interfixed by bearing by small one and large one two sprocket pieces to form, this bearing is captiveed joint with vehicle frame again, when bicycle, treadle drives sprocket wheel 1 and rotates, then drive sprocket piece 3,4 by chain 2, and sprocket piece 4 drives another group sprocket piece 6,7 rotations by chain 5, driving flywheel 9 by sprocket piece 7 by chain 8 at last rotates, thereby driving trailing wheel 10 rotates, because three chains all adopt the structure that is connected to the minor sprocket sheet from the hinge wheel sheet, so can reach the purpose that makes the trailing wheel twirl.
Claims (3)
1. chain type bicycle, it mainly comprises vehicle frame, before connected to ground, trailing wheel and be located at vehicle seat and handlebar on the vehicle frame, it is characterized in that: trailing wheel is provided with flywheel, vehicle frame is provided with treadle, treadle links to each other with a sprocket wheel (1), be provided with two groups of sprocket pieces between sprocket wheel (1) and the flywheel, wherein one group of sprocket piece comprises sprocket piece (3,4) and chain (5), another group sprocket piece comprises sprocket piece (6,7) and chain (8), be connected by chain (2) between sprocket wheel (1) and the sprocket piece (3), be connected by chain (5) between sprocket piece (4) and the sprocket piece (6), be connected by chain (8) between sprocket piece (7) and the flywheel.
2, a kind of three chain type bicycles according to claim 1 is characterized in that: each group sprocket piece is made up of small one and large one two sprocket pieces and a chain, connects by bearing fixing between two sprocket pieces of size.
3, a kind of three chain type bicycles according to claim 2 is characterized in that: hinge wheel sheet diameter 9.5-10.2 centimetre is distributed with 24 teeth equably around the sprocket piece; Minor sprocket sheet diameter 3.3-3.5 centimetre is distributed with 8 teeth equably around the sprocket piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040288 CN2795003Y (en) | 2005-03-21 | 2005-03-21 | Three chain bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040288 CN2795003Y (en) | 2005-03-21 | 2005-03-21 | Three chain bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2795003Y true CN2795003Y (en) | 2006-07-12 |
Family
ID=36812764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520040288 Expired - Fee Related CN2795003Y (en) | 2005-03-21 | 2005-03-21 | Three chain bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2795003Y (en) |
-
2005
- 2005-03-21 CN CN 200520040288 patent/CN2795003Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2795003Y (en) | Three chain bicycle | |
| CN100429117C (en) | Sitting-standing two-purpose bicycle | |
| CN201721583U (en) | Bicycle | |
| CN2889859Y (en) | Stub axle double rear wheel drive manpower tricycle | |
| CN203020501U (en) | Transmission device for bicycle | |
| CN2464388Y (en) | Scooter | |
| CN200971136Y (en) | Two-purpose bicycle for sitting or standing | |
| CN2830243Y (en) | Backward mounted axle and chainless bicycle | |
| CN201010000Y (en) | Running body-building bike | |
| CN218839676U (en) | Power-saving bicycle | |
| CN2631917Y (en) | Electric tricycles with booster | |
| CN2931257Y (en) | Chainless bicycle | |
| CN2429423Y (en) | Non-chain driven bicycle | |
| CN2815862Y (en) | Two-wheel drive mechanism of bicycle | |
| CN201376645Y (en) | Dual-drive bicycle without driving by chains | |
| CN2496745Y (en) | Bicycle | |
| CN2530869Y (en) | Front driving bicycle capable of parallel moving handlebar | |
| CN2570157Y (en) | In-line gear driving bicycle | |
| CN2602992Y (en) | Fast bicycle with combined hand driving and arc shape pedal lever | |
| CN2651127Y (en) | Gravity footstep vehicles | |
| CN2640912Y (en) | Forward and reverse single chain two speed bicycle | |
| CN1876476A (en) | Chainless bicycle with backward central axis | |
| CN2458222Y (en) | Double-chain high-speed bicycle | |
| CN2573357Y (en) | Bicycle | |
| CN201390356Y (en) | Light pedal-driven vehicle |
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 |