CN2163788Y - High-low speed transmission for cycles - Google Patents
High-low speed transmission for cycles Download PDFInfo
- Publication number
- CN2163788Y CN2163788Y CN 93221879 CN93221879U CN2163788Y CN 2163788 Y CN2163788 Y CN 2163788Y CN 93221879 CN93221879 CN 93221879 CN 93221879 U CN93221879 U CN 93221879U CN 2163788 Y CN2163788 Y CN 2163788Y
- Authority
- CN
- China
- Prior art keywords
- axostylus axostyle
- gear
- driving
- wheel
- chain
- 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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- Transmission Devices (AREA)
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a gear speed increasing or chain driving high-low speed bicycle. A gearset driving mechanism is additionally added to existing bicycles. The bicycle is propelled to run at a high speed through the rotation of the gearset; meanwhile, the utility model has the chain driving function of existing bicycles, solving the problem of labor consuming of gear driving in operating foot pedals at slope climbing or under other conditions. The utility model keeps the structure of existing bicycles and can be used to match with existing bicycles when arranged on rear support brackets of bicycles.
Description
The utility model belongs to bicycle drive, and what relate generally to is a kind of by gear increaser or by the height double speed bicycle of chain gear.
At present, the driving device of existing bicycle is proposed improved a lot, as the patent No.: 89213406.2 " a kind of bicycle speed increasing mechanisms ".It is exactly to set up a transmission system in addition on the basis of existing bicycle, make the transmission of bicycle become double-stranded bar, double-stranded dish, round trip flight wheel construction, the bicycle drive of this structure, though the speed of bicycle is improved, but because it is subjected to the restriction of chain drum transmission, just have certain difficulty so the speed of bicycle wants to increase substantially, and the bicycle of this structure is ridden relatively effort when going up a slope.
The purpose of this utility model promptly produces thus, proposes a kind of just bicycle drive of two speed transmissions, and the high speed transmission of this driving device is realized that by gear change the low speed transmission is realized by chain gear.
For achieving the above object, the utility model is realized by following technical scheme: it is to set up one group of gear increaser mechanism in addition on the basis of existing bicycle drive, this speed increasing mechanism is made of bearing, axostylus axostyle, big gear wheel, miniature gears, all is fixed with two bearings on each axostylus axostyle (should have more than three groups at least).Be fixed with big gear wheel on first axostylus axostyle between two bearings, last axostylus axostyle is fixed with miniature gears.Remaining axostylus axostyle all is fixed with large and small gear simultaneously, and the big gear wheel on each axostylus axostyle all with next axostylus axostyle on pinion; On first axostylus axostyle, also be provided with driving gear, transmission gear and shift fork, in the end also be provided with driving chain wheel and drive sprocket on the axostylus axostyle, its driving gear and cycle wheel dish are provided with initiatively chain, transmission gear and are provided with driving chain, drive sprocket and bicycle freewheel with driving chain wheel and are provided with chain drive-belt, driving gear under the effect of shift fork with transmission gear or axostylus axostyle fastening.
The utility model reasonable in design, owing to adopt gear cluster transmission speedup, its speed of a motor vehicle improves much than the speed of a motor vehicle of existing bicycle, and also preserves the function of existing chain gear, bicycle just can not feel to ride effort when going up a slope.
The utility model has following accompanying drawing.
Accompanying drawing 1 is the utility model assembling scheme drawing.
Accompanying drawing 2 is the utility model gear structure scheme drawing.
In conjunction with the accompanying drawings, it is as follows to provide the utility model embodiment:
As shown in the figure: the utility model is to set up a change gear transmission in addition on the basis of existing transmission mechanism of bicycle, this transmission system is by bearing 2, axostylus axostyle 3, big gear wheel 4, miniature gears 5 constitutes, it all is arranged in the housing 1, with each axostylus axostyle is one group (it should have three groups at least with upper shaft lever), all be fixed with two bearings 2 on each axostylus axostyle, on first group of axostylus axostyle 3 of 2 of two bearings, be fixed with big gear wheel 4, be fixed with miniature gears 5 on last group axostylus axostyle 3, all be fixed with big gear wheel 4 and miniature gears 5 on remaining axostylus axostyle 3 simultaneously, big gear wheel 4 on each group axostylus axostyle 3 all meshes with the miniature gears 5 that next is organized on axostylus axostyle 3, and big gear wheel 4 is times of miniature gears 5.First group of axostylus axostyle 3 stretches out housing 1, its extending area is provided with shift fork 6, driving gear 7, spring 8 and transmission gear 9, shift fork 6 inserts on the axostylus axostyle 3, it is connected with selector gear on being arranged on Handlebar of bicycle by steel wire 10, driving gear 7 is under the manipulation of selector gear 11, fixed block 20 on its outer shroud and transmission gear 9 fastenings or its interior ring and the axostylus axostyle 3 fastens, purpose is to make driving gear 7 drive transmission gear 9 or axostylus axostyle 3 rotations, fixed block 20 is an one with axostylus axostyle 3, and spring 9 is arranged on 8 of driving gear 7 and transmission gears.The axostylus axostyle 3 of last group also stretches out housing 1, its sponson is provided with driving chain wheel 12 and drive sprocket 13, driving gear 7 and bicycle wheel disc 17 are provided with initiatively chain 14, transmission gear 9 and driving chain wheel 12 are provided with driving chain 15, and drive sprocket 13 and bicycle freewheel 19 are provided with chain drive-belt 16.Working process of the present utility model is as follows: when the need speedup, handle speed-changing mechanism 11 and drive shift fork 6, driving gear 7 fastens with fixed block 20 under the effect of spring 8, step pedal, driving gear 7 is worked under the drive of active chain 14, at this moment, ring rotates in the transmission gear 9, outer shroud is motionless, the fixed block 20 that fastens with driving gear 7 drives 3 rotations of first axostylus axostyle, the miniature gears 5 that big gear wheel 4 on first axostylus axostyle 3 drives on next the group axostylus axostyle 3 that is meshed with it rotates, second axostylus axostyle 3 rotates under the drive of miniature gears 5, and the miniature gears 5 that big gear wheel 4 fixed thereon drives again on next group axostylus axostyle 3 rotates, by that analogy, at last, the power that has been accelerated is spread out of by last group axostylus axostyle.At this moment, be arranged on its interior the ring with spindle rotation of driving chain wheel on the axostylus axostyle, and outer shroud is motionless, drive sprocket then drives bicycle freewheel by chain drive-belt and runs at high speed.When going up a slope, the bicycle shift rear treadle is effort, at this moment, need to handle speed-changing mechanism, driving gear stirred under the effect of steel wire by shift fork and transmission gear fastens, because of driving gear is the outer shroud fastening of its outer shroud and transmission gear at this moment, so driving transmission gear after driving gear rotates simultaneously rotates, the driving chain wheel that links to each other with transmission gear rotates under the drive of driving chain, at this moment, rotate during with drive sprocket that driving chain wheel links to each other, bicycle freewheel is pressed low speed driving under the effect of chain drive-belt.
Claims (5)
1, a kind of bicycle drive, comprise wheel disc (17), flywheel (19), it is characterized in that: also comprise by bearing (2), axostylus axostyle (3), the speed increasing mechanism that big gear wheel (4) and miniature gears (5) constitute, all be fixed with two bearings on its each axostylus axostyle, on first axostylus axostyle between two bearings, be fixed with big gear wheel, be fixed with miniature gears on the last axostylus axostyle, all be fixed with big on all the other axostylus axostyles simultaneously, miniature gears, and the big gear wheel on each axostylus axostyle all with next axostylus axostyle on pinion, on first axostylus axostyle, also be provided with shift fork (6), driving gear (7) and transmission gear (9), its driving gear is fastening with transmission gear or with axostylus axostyle under the effect of shift fork: also be provided with driving chain wheel (12) and drive sprocket (13) on last axostylus axostyle, on driving gear and wheel disc, be provided with initiatively chain (14), on transmission gear and driving chain wheel, be provided with driving chain (15), on drive sprocket and flywheel, be provided with chain drive-belt (16).
2, driving device according to claim 1 is characterized in that: described speed increasing mechanism axostylus axostyle should have more than three groups at least.
3, driving device according to claim 1 is characterized in that: the fastening of described driving gear and axostylus axostyle is to fasten with the fixed block (20) that is arranged on the axostylus axostyle.
4, driving device according to claim 1 is characterized in that: the bearing of described speed increasing mechanism (2), axostylus axostyle (3), big gear wheel (4), miniature gears all are arranged in the housing (1).
5, driving device according to claim 1 is characterized in that: described big gear wheel (4) is a times of miniature gears (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221879 CN2163788Y (en) | 1993-08-13 | 1993-08-13 | High-low speed transmission for cycles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221879 CN2163788Y (en) | 1993-08-13 | 1993-08-13 | High-low speed transmission for cycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2163788Y true CN2163788Y (en) | 1994-05-04 |
Family
ID=33800611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93221879 Expired - Fee Related CN2163788Y (en) | 1993-08-13 | 1993-08-13 | High-low speed transmission for cycles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2163788Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818924A (en) * | 2016-06-01 | 2016-08-03 | 朱道刚 | Transmission device and novel bicycle |
-
1993
- 1993-08-13 CN CN 93221879 patent/CN2163788Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105818924A (en) * | 2016-06-01 | 2016-08-03 | 朱道刚 | Transmission device and novel bicycle |
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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 |