CN2041665U - Bicycle dual speed fly wheel - Google Patents
Bicycle dual speed fly wheel Download PDFInfo
- Publication number
- CN2041665U CN2041665U CN 88218117 CN88218117U CN2041665U CN 2041665 U CN2041665 U CN 2041665U CN 88218117 CN88218117 CN 88218117 CN 88218117 U CN88218117 U CN 88218117U CN 2041665 U CN2041665 U CN 2041665U
- Authority
- CN
- China
- Prior art keywords
- internally toothed
- toothed annulus
- bicycle
- wheel
- axle sleeve
- 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.)
- Withdrawn
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- Transmission Devices (AREA)
Abstract
A bicycle dual speed fly wheel relates to a variable speed gear of a bicycle, and the utility model makes the wheel obtain different rotation speeds by forward and backward stepping the carrier wheel. The utility model has the advantages of simple structure, high reliability, small size and low cost. The utility model is suitable for various bicycles.
Description
The utility model relates to a kind of transmission system of bicycle.
At present, people generally adopt sprocket wheel direct drive wheel to advance by bike, because sprocket wheel is constant, so bicycle when up-hill journey, makes people feel very painstaking; The bicycle that adopts transmission system is also arranged, but because its complex structure, reliability is low, makes it be subjected to certain restriction in application.
The purpose of this utility model be overcome bicycle freewheel in the above-mentioned prior art can not speed change or baroque weak point and a kind of transmission system of bicycle is provided.
Principle of work of the present utility model is: when forward was pedaled movable sprocket (3), ratchet made axle bumper (1) in sprocket wheel (3) and axle bumper (1), and axle sleeve (3) drives the wheel forward rotation; And with sprocket wheel (3) one end pinion in mesh (6) around gear wheel shaft (4) backward rotation, make with miniature gears (6) ingear internally toothed annulus (7) around the bicycle rear axle backward rotation, the ratchet between internally toothed annulus (7) and axle sleeve (8) is inoperative and both are thrown off.When oppositely pedaling movable sprocket (3), ratchet between sprocket wheel (3) and axle bumper (1) is inoperative and both are thrown off, but by miniature gears (6) internally toothed annulus (7), make the ratchet between internally toothed annulus (7) and axle sleeve (8) that axle sleeve (8) drive wheel is just changeed, because of the number of teeth of internally toothed annulus (7) different with the number of teeth on the sprocket wheel (3), so the forward and reverse movable sprocket (3) of pedaling, wheel can obtain different rotating speeds.
Characteristics of the present utility model are: simple in structure, use reliably, and volume is little, and cost is low, need only reequip a little and can use original bicycle and pedal three-wheel vehicle.
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model is by axle bumper (1), door (2), sprocket wheel (3), gear wheel shaft (4), dust boot (5), miniature gears (6), internally toothed annulus (7), axle sleeve (8), ball (9) is formed, and axle sleeve (8) is set in the hole of internally toothed annulus (7), links to each other with ratchet between the two, axle bumper (1) and axle sleeve (8) are for being threaded, sprocket wheel (3) sky is enclosed within the step place of axle bumper (1), links to each other with ratchet between the two, and door (2) and axle sleeve (8) are for being threaded, sprocket wheel (3) one ends are profile of tooth, and with miniature gears (6) engagement, miniature gears (6) is contained on the gear wheel shaft (4), gear wheel shaft (4) is fixed on the bicycle rack, internally toothed annulus (7) and miniature gears (6) engagement, dust boot (5) buckle closure is in the outer rim of internally toothed annulus (7).In the both sides at the boss place in sprocket wheel (3) hole, the both sides, boss place in internally toothed annulus hole all serve as a contrast with ball (9).
Claims (1)
- A kind of bicycle Two speed flying wheel, comprise axle bumper (1), door (2), sprocket wheel (3), gear wheel shaft (4), dust boot (5), miniature gears (6), internally toothed annulus (7), axle sleeve (8) and ball (9) are formed, it is characterized in that axle sleeve (8) is set in the hole of internally toothed annulus (7), link to each other with ratchet between the two, axle bumper (1) and axle sleeve (8) are for being threaded, sprocket wheel (3) sky is enclosed within the step place of axle bumper (1), link to each other with ratchet between the two, door (2) and axle sleeve (8) are for being threaded, sprocket wheel (3) one ends are profile of tooth, and mesh with miniature gears (6), miniature gears (6) is contained on the gear wheel shaft (4), gear wheel shaft (4) is fixed on the bicycle rack, internally toothed annulus (7) and miniature gears (6) engagement, cover of dust (5) buckle closure is in the outer rim of internally toothed annulus (7), in the both sides at the boss place in sprocket wheel (3) hole, the both sides, boss place in internally toothed annulus hole all serve as a contrast with ball (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88218117 CN2041665U (en) | 1988-07-02 | 1988-07-02 | Bicycle dual speed fly wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88218117 CN2041665U (en) | 1988-07-02 | 1988-07-02 | Bicycle dual speed fly wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2041665U true CN2041665U (en) | 1989-07-26 |
Family
ID=4850575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88218117 Withdrawn CN2041665U (en) | 1988-07-02 | 1988-07-02 | Bicycle dual speed fly wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2041665U (en) |
-
1988
- 1988-07-02 CN CN 88218117 patent/CN2041665U/en not_active Withdrawn
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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 |