CN111661232A - Bicycle with novel power device - Google Patents
Bicycle with novel power device Download PDFInfo
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- CN111661232A CN111661232A CN202010392434.6A CN202010392434A CN111661232A CN 111661232 A CN111661232 A CN 111661232A CN 202010392434 A CN202010392434 A CN 202010392434A CN 111661232 A CN111661232 A CN 111661232A
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- gear
- rotating shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
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Abstract
A bicycle with a novel power device comprises a frame, a front wheel, a rear wheel, a first flywheel and a driving device. The driving device comprises a shell, a first power unit, a second power unit, a first chain wheel, a first chain and pedals. The first power unit includes a first rotating shaft, a first gear, a second gear, and a first bearing. The second power unit comprises a second rotating shaft, a third gear, a fourth gear and a second bearing. The first gear is meshed with the fourth gear, the second gear is meshed with the third gear, the diameter of the second gear is larger than that of the third gear, and the diameter of the fourth gear is larger than that of the first gear, so that the first power unit and the second power unit are accelerated twice. This bicycle with novel power device has alleviateed the burden of riding passerby, has promoted the speed of riding, has promoted transmission efficiency.
Description
Technical Field
The invention belongs to the technical field of bicycles, and particularly relates to a bicycle with a novel power device.
Background
Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. After a person rides the vehicle, the person steps on the pedal as power, and the vehicle is a green and environment-friendly vehicle. The bicycle is of various types, including single-person bicycles, double-person bicycles and multi-person bicycles. The bicycle can be used as an environment-friendly vehicle for riding instead of walking and going out; more and more people use bicycles as fitness equipment for riding exercise and bicycle travel; the bicycle itself is also a sport event, including road bike racing, mountain bike racing, field bike racing, stunt bike racing, and the like.
At present, a rider of a manpower bicycle can only step on a chain wheel crank of the bicycle in a single direction according to the advancing direction, the power mode of a driving device is labor-consuming, but the driving efficiency is low, and the burden of the rider is increased in the long-time riding process.
Disclosure of Invention
In view of the above, the present invention provides a bicycle with a novel power device, which can improve the rotation efficiency, so as to meet the industrial requirements.
A bicycle with a novel power device comprises a frame, a front wheel arranged on the frame, a rear wheel arranged on the frame, a first flywheel arranged on the rear wheel and a driving device arranged on the frame. The driving device comprises a shell, a first power unit arranged in the shell, a second power unit arranged on one side of the first power unit, a first chain wheel arranged on the first power unit, a first chain connected to the first chain wheel and the first flywheel, and two pedals arranged at two ends of the first power unit. The first power unit comprises a first rotating shaft erected on the shell, a first gear movably connected to the first rotating shaft, a second gear fixedly connected to the first rotating shaft, and two first bearings respectively sleeved on the first rotating shaft. The second power unit comprises a second rotating shaft erected on the shell, a third gear fixedly connected to the second rotating shaft, a fourth gear fixedly connected to the third gear, and two second bearings arranged on the second rotating shaft. The first rotating shaft passes through the centers of the first gear and the second gear, and the second rotating shaft passes through the centers of the third gear and the fourth gear. The two pedals are respectively and fixedly connected to two ends of the first rotating shaft. The first gear is meshed with the fourth gear, the second gear is meshed with the third gear, the diameter of the second gear is larger than that of the third gear, and the diameter of the fourth gear is larger than that of the first gear, so that the first power unit and the second power unit are accelerated twice.
Furthermore, the housing comprises a housing main body, a cover plate arranged on the housing main body, two first mounting holes symmetrically arranged on the housing main body and the cover plate, and two second mounting holes symmetrically arranged on the housing main body and the cover plate, wherein the first bearing is accommodated in the first mounting hole, and the second bearing is accommodated in the second mounting hole.
Further, the third gear and the fourth gear are integrally formed.
Furthermore, the first gear comprises a gear body, a hollow shaft sleeve arranged on the gear body, a connecting sleeve arranged on the hollow shaft sleeve, and a third bearing accommodated in the connecting sleeve and sleeved on the first rotating shaft, the hollow shaft sleeve penetrates through the shell, and the first chain wheel is fixedly connected to the connecting sleeve.
Further, the diameter of the second gear is larger than that of the first gear, and the diameter of the fourth gear is larger than that of the third gear.
Furthermore, the bicycle with the novel power device further comprises a power assisting unit arranged on the frame, wherein the power assisting unit comprises a power assisting device arranged on the frame and a power assisting transmission device arranged on the shell.
Furthermore, the power assisting device comprises a first support arranged on the frame, a first rotating shaft arranged on the first support, a rubber wheel sleeved on the first rotating shaft, and a second flywheel arranged at one end of the first rotating shaft, wherein the rubber wheel and the rear wheel are always abutted together.
Furthermore, on the section along the central axis of the rubber wheel, the two side edges of the rubber wheel form an arc shape.
Further, the power transmission device comprises a second bracket arranged on the housing, a second rotating shaft arranged on the second bracket, a second chain wheel arranged on the second rotating shaft, and a third chain wheel arranged on the second rotating shaft, wherein the second chain wheel is meshed with the first chain, and the second chain is connected with the third chain wheel and the second flywheel.
Further, the second chain wheel, the third chain wheel and the second rotating shaft are fixedly connected together.
Compared with the prior art, the bicycle with the novel power device provided by the invention has the advantage that the speed of the bicycle is increased through the driving device. The first power unit and the second power unit of the driving device are mutually driven and drive the first chain wheel to rotate. The first power unit comprises a first rotating shaft erected on the shell, a first gear movably connected to the first rotating shaft, a second gear fixedly connected to the first rotating shaft, and two first bearings respectively sleeved on the first rotating shaft. The second power unit comprises a second rotating shaft erected on the shell, a third gear fixedly connected to the second rotating shaft, a fourth gear fixedly connected to the third gear, and two second bearings arranged on the second rotating shaft. The second gear is meshed with the third gear, the fourth gear is meshed with the first gear, and the first gear is connected with the first chain wheel, so that the first chain wheel is driven to rotate. The diameter of the second gear is larger than that of the third gear, and the diameter of the fourth gear is larger than that of the first gear, so that the second gear drives the third gear and the fourth gear to do accelerated motion, the fourth gear drives the first gear to do accelerated motion, and the first chain wheel drives the rear wheel to rotate rapidly. This bicycle with novel power device has alleviateed the burden of riding passerby, has promoted the speed of riding, has promoted transmission efficiency.
Drawings
Fig. 1 is a schematic structural view of a bicycle with a novel power device provided by the invention.
Fig. 2 is an exploded view of the bicycle with the novel power unit of fig. 1.
Fig. 3 is an exploded view of the driving device of the bicycle with the novel power device of fig. 1.
Fig. 4 is a schematic top view of the driving device of fig. 3.
Fig. 5 is a cross-sectional view of the driving device of the bicycle with the novel power device of fig. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to 5, it is a schematic structural diagram of a bicycle with a novel power device provided by the present invention. The bicycle with the novel power device comprises a frame 1, a front wheel 2 arranged on the frame 1, a rear wheel 3 arranged on the frame 1, a first flywheel 4 arranged on the rear wheel 3, a driving device 10 arranged on the frame 1 and a power assisting unit 20 arranged on the frame 1. The bicycle with the novel power device further comprises other functional modules, such as assembly components and the like, which are well known to those skilled in the art, and will not be described in detail herein.
The front wheel 2 and the rear wheel 3 are arranged on the frame 1 and form a whole with the frame 1. The first flywheel 4 is arranged on the rear wheel 3, the driving device 10 is connected with the first flywheel 4 to drive the rear wheel 3 to rotate, and the frame, the front wheel 2, the rear wheel 3 and the first flywheel 4 are all the prior art and are not described in detail herein.
The driving device 10 includes a housing 11, a first power unit 12 disposed in the housing 11, a second power unit 13 disposed on one side of the first power unit 12, a first chain wheel 14 disposed on the first power unit 12, a first chain 15 connected to the first chain wheel 14 and the first flywheel 4, and two pedals 16 disposed at two ends of the first power unit 12, respectively.
The housing 11 includes a housing main body 111, a cover plate 112 disposed on the housing main body 111, two first mounting holes 113 disposed on the housing main body 111 and the cover plate 112, and two second mounting holes 114 disposed on the housing main body 111 and the cover plate 113. A first bearing 124 is received in the first mounting hole 113, and a second bearing 124 is received in the second mounting hole 114, so that the first power unit 12 and the second power unit 13 are stably mounted in the housing 11. The housing 11 is disposed outside the first power unit 12 and the second power unit 13, the housing 11 protects the first power unit 12 and the second power unit 13, and the housing 11 makes the first power unit 12 and the second power unit 13 form a whole.
The first power unit 12 includes a first rotating shaft 121 mounted on the housing 11, a first gear 122 movably connected to the first rotating shaft 121, a second gear 123 fixedly connected to the first rotating shaft 121, and two first bearings 124 respectively sleeved on the first rotating shaft 121.
The first rotation shaft 121 passes through centers of the first gear 122 and the second gear 123, and the first gear 122 and the second gear 123 rotate around a central axis of the first rotation shaft 121. The second gear 123 is fixedly connected to the first rotating shaft 121, so that when the first rotating shaft 121 is rotated, the second gear 123 rotates along with the first rotating shaft 121, and the entire driving device 10 is driven. The first gear 122 is movably connected to the first rotating shaft 121, and the second power unit 13 drives the first gear 122 to rotate.
The first gear 122 and the second gear 123 are clamped between the two first bearings 124, the first bearings 124 are fixedly accommodated in the first mounting hole 113 of the housing 11, the first rotating shaft 121 is disposed through the first bearings 124, two ends of the first rotating shaft 121 respectively penetrate through the two first bearings 124, two ends of the first rotating shaft 121 are exposed out of the housing 11, and two ends of the first rotating shaft 121 are connected to the pedals 15. Since the first power unit 12 and the second power unit 13 are connected together, the first power unit 12 will be described in detail with reference to the second power unit 13.
The first gear 122 includes a gear body 1221, a hollow sleeve 1222 disposed on the gear body 1221, a connection sleeve 1223 disposed on the hollow sleeve 1222, and a third bearing 1224 received in the connection sleeve 1223 and sleeved on the first rotating shaft 121. The hollow sleeve 1222 penetrates through the first mounting hole 113 of the housing 11 and opens to the outside of the housing 11. The connecting sleeve 1223 is connected to the hollow sleeve 1222, and the first sprocket 14 is fixedly connected to the connecting sleeve 1223, so that the first sprocket 14 and the first gear 122 are integrally connected. The first bearing 124 is sleeved outside the hollow shaft sleeve 1222, and the third bearing 1224 is received in the hollow shaft sleeve 1222, so that the first gear 122 and the first rotating shaft 121 can both rotate freely, the first rotating shaft 121 drives the second gear 123 to rotate, and the first gear 122 drives the first chain wheel 14 to rotate.
The second power unit 13 includes a second rotating shaft 131 mounted on the housing 11, a third gear 132 fixedly connected to the second rotating shaft 131, a fourth gear 133 fixedly connected to the third gear 132, and two second bearings 134 disposed on the second rotating shaft 131.
The second rotating shaft 131 passes through the centers of the third gear 132, the fourth gear 133 and the second bearing 134, and the second bearing 134 is received in the second mounting hole 114. The third gear 132 and the fourth gear 133 both rotate around the central axis of the second shaft 131, and the second shaft 131 is fixedly connected to the third gear 132 and the fourth gear 133, so that when the second shaft 131 is rotated, the third gear 132 and the fourth gear 133 rotate together.
The second gear 123 is fixedly connected with the first rotating shaft 121, when the pedal 16 drives the first rotating shaft 121 to rotate, the second gear 123 is a driving wheel, the second gear 123 is meshed with the third gear 132, and the second gear 123 drives the third gear 132 to rotate in a rotating process. And since the third gear 132 and the fourth gear 133 are fixedly connected together, the fourth gear 133 rotates together, and the fourth gear 133 is meshed with the first gear 122, so that the fourth gear 133 drives the first gear 122 to rotate. In addition, the diameter of the second gear 123 is larger than that of the third gear 132, and the diameter of the fourth gear 133 is larger than that of the first gear 122, so that the first power unit and the second power unit are increased in speed twice. It is conceivable that the second gear 123 drives the third gear 132 and the fourth gear 133 to perform a first speed-increasing motion, and the fourth gear 133 drives the first gear 122 to perform a second speed-increasing motion, so that the power of the first chain wheel 14 is enhanced through two speed increases between the first power unit 12 and the second power unit 13, and then the power of the first chain wheel 14 driving the rear wheel 3 is enhanced, so as to speed the bicycle faster. In addition, in the present embodiment, the diameter of the second gear 123 is larger than that of the first gear 122, and the diameter of the fourth gear 133 is larger than that of the third gear 132. The third gear 132 and the fourth gear 133 are integrally formed, so that the third gear 132 and the fourth gear 133 are stably connected, and the service life of the third gear 132 and the fourth gear 133 is ensured. The two second bearings 134 are respectively sleeved at two ends of the second rotating shaft 131, so that the second rotating shaft 131 can rotate.
The first sprocket 14 is fixedly connected to the first gear 122, and when the first gear 122 is rotated, the first sprocket 14 drives the first sprocket 14 to rotate synchronously, so as to drive the rear wheel 3 to rotate.
The first chain 15 connects the first sprocket 14 and the first flywheel 4 together, so that the driving device 10 can drive the rear wheel 3 to rotate, and the first chain 15 is a prior art.
Two pedal 16 is fixed connection respectively in the both ends of first pivot axle 121, through the drive pedal 16 drives first pivot axle 121 rotates to the drive second gear 123 rotates, pedal 16 is a prior art, and no longer repeated here.
The booster system 20 comprises a booster unit 21 arranged on the vehicle frame 1 and a booster transmission unit 22 arranged on the housing 11.
The boosting device 21 comprises a first bracket 211 arranged on the frame 1, a first rotating shaft 212 arranged on the first bracket 211, a rubber wheel 213 sleeved on the first rotating shaft 212, and a second flywheel 214 arranged at one end of the first rotating shaft 212. The rubber wheel 213 is fixedly connected to the first rotating shaft 212, and the rubber wheel 213 and the rear wheel 3 are always abutted to each other.
The first bracket 211 supports the first rotating shaft 212, and allows the first rotating shaft 212 to rotate freely, thereby rotating the second flywheel 214. The first flywheel 4 and the second flywheel 214 are wheel-shaped energy accumulators with large moment of inertia mounted on the rotating shaft of the machine. When the rotating speed of the machine is increased, the kinetic energy of the flywheel is increased, and the energy is stored; when the machine speed decreases, the kinetic energy of the flywheel decreases, releasing the energy, and the first flywheel 4 and the second flywheel 214 are a kind of prior art. When the driving device 10 does not drive the rear wheel 3 and the rear wheel 3 rotates by inertia, since the second flywheel 214 is disposed on the first rotating shaft 212, the rubber wheel 213 and the first rotating shaft 212 rotate by the driving of the rear wheel 3, and the rotation of the rear wheel 3 is prevented from being hindered.
The assist force transmission device 22 includes a second bracket 221 provided on the housing 11, a second rotating shaft 222 provided on the second bracket 221, a second sprocket 223 provided on the second rotating shaft 222, a third sprocket 224 provided on the second rotating shaft 222, and a second chain 225 provided on the third sprocket 224 and the second flywheel 214.
The second sprocket 223 is engaged with the first chain 15. When the first chain 15 of the driving device 10 drives the rear wheel 3 to rotate, the first chain 15 also drives the second chain wheel 223 to rotate, and since the second chain wheel 223, the third chain wheel 224 and the second rotating shaft 222 are fixedly connected together, the third chain wheel 224 and the second rotating shaft 222 also rotate together when the second chain wheel 223 rotates. In addition, since the second chain 225 is connected to the second flywheel 214 by the second chain 225, the second chain 225 can drive the second flywheel 214 to rotate by the third sprocket 224, so that the rubber wheel 213 rotates together. And the second flywheel 214 drives the rotation direction of the rubber wheel 213 to be opposite to the direction of the second flywheel 214, the rubber wheel 213 and the rear wheel 3 are always abutted together, and the rubber wheel 213 drives the rear wheel 3 to rotate by the friction force of the rubber wheel 213, so that the power when the rear wheel 3 rotates is improved, and the speed of the bicycle is improved.
On the cross section along the central axis of the rubber wheel 213, the two side edges of the rubber wheel 213 are arc-shaped, and the rear wheel 3 is accommodated in the arc-shaped section, so that the rubber wheel 213 can be fully wrapped on the rear wheel 3.
Compared with the prior art, the bicycle with the novel power device provided by the invention has the advantage that the speed of the bicycle is increased through the driving device 10. The first power unit 12 and the second power unit 13 of the driving device 10 are mutually driven, and drive the first chain wheel 14 to rotate. The first power unit 12 includes a first rotating shaft 121 mounted on the housing 11, a first gear 122 movably connected to the first rotating shaft 121, a second gear 123 fixedly connected to the first rotating shaft 121, and two first bearings 124 respectively sleeved on the first rotating shaft 121. The second power unit 13 includes a second rotating shaft 131 mounted on the housing 11, a third gear 132 fixedly connected to the second rotating shaft 131, a fourth gear 133 fixedly connected to the third gear 132, and two second bearings 134 disposed on the second rotating shaft 131. The second gear 123 meshes with the third gear 132, the fourth gear 133 meshes with the first gear 122, and the first gear 122 is connected with the first chain wheel 14, so as to drive the first chain wheel 14 to rotate. The diameter of the second gear 123 is greater than that of the third gear 132, and the diameter of the fourth gear 133 is greater than that of the first gear 122, so that the second gear 123 drives the third gear 132 and the fourth gear 133 to perform an acceleration motion, and the fourth gear 133 drives the first gear 122 to perform an acceleration motion, so that the first sprocket 14 drives the rear wheel 3 to rotate rapidly. This bicycle with novel power device has alleviateed the burden of riding passerby, has promoted the speed of riding, has promoted transmission efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (10)
1. A bicycle with novel power device, includes a frame, a setting is in preceding wheel on the frame, a setting is in back wheel on the frame, a setting first flywheel on the back wheel, its characterized in that: the bicycle with the novel power device comprises a driving device arranged on the frame, the driving device comprises a shell, a first power unit arranged in the shell, a second power unit arranged on one side of the first power unit, a first chain wheel arranged on the first power unit, a first chain connected to the first chain wheel and the first flywheel, and two pedals respectively arranged at two ends of the first power unit, the first power unit comprises a first rotating shaft erected on the shell, a first gear movably connected on the first rotating shaft, a second gear fixedly connected on the first rotating shaft, and two first bearings respectively sleeved on the first rotating shaft, the second power unit comprises a second rotating shaft erected on the shell, one fixed connection is in the epaxial third gear of second pivot, a fixed connection is in fourth gear on the third gear, and two settings are in epaxial second bearing of second pivot, first pivot is passed first gear and the center of second gear, the second pivot is passed third gear and the center of fourth gear, two the pedal is fixed connection respectively in the both ends of first pivot, first gear with fourth gear engagement is in the same place, the second gear with third gear engagement is in the same place, the diameter of second gear is greater than the diameter of third gear, the diameter of fourth gear is greater than the diameter of first gear, so that first power pack and second power pack carry out the acceleration rate twice.
2. The bicycle with the novel power device as claimed in claim 1, wherein: the shell comprises a shell main body, a cover plate arranged on the shell main body, two first mounting holes symmetrically arranged on the shell main body and the cover plate, and two second mounting holes symmetrically arranged on the shell main body and the cover plate, wherein the first bearing is accommodated in the first mounting holes, and the second bearing is accommodated in the second mounting holes.
3. The bicycle with the novel power device as claimed in claim 1, wherein: the third gear and the fourth gear are integrally formed.
4. The bicycle with the novel power device as claimed in claim 1, wherein: the first gear comprises a gear body, a hollow shaft sleeve arranged on the gear body, a connecting sleeve arranged on the hollow shaft sleeve, and a third bearing accommodated in the connecting sleeve and sleeved on the first rotating shaft, the hollow shaft sleeve penetrates through the shell, and the first chain wheel is fixedly connected to the connecting sleeve.
5. The bicycle with the novel power device as claimed in claim 1, wherein: the diameter of the second gear is larger than that of the first gear, and the diameter of the fourth gear is larger than that of the third gear.
6. The bicycle with the novel power device as claimed in claim 1, wherein: the bicycle with the novel power device further comprises a power assisting unit arranged on the frame, wherein the power assisting unit comprises a power assisting device arranged on the frame and a power assisting transmission device arranged on the shell.
7. The bicycle with the novel power device as claimed in claim 6, wherein: the power assisting device comprises a first support arranged on the frame, a first rotating shaft arranged on the first support, a rubber wheel sleeved on the first rotating shaft, and a second flywheel arranged at one end of the first rotating shaft, wherein the rubber wheel and the rear wheel are always abutted together.
8. The bicycle with the novel power device as claimed in claim 7, wherein: on the cross section along the central shaft of the rubber wheel, the edges of two sides of the rubber wheel form an arc shape.
9. The bicycle with the novel power device as claimed in claim 7, wherein: the power transmission device comprises a second support arranged on the shell, a second rotating shaft arranged on the second support, a second chain wheel arranged on the second rotating shaft, and a third chain wheel arranged on the second rotating shaft, wherein the second chain wheel is meshed with the first chain, and the second chain is connected with the third chain wheel and the second flywheel.
10. The bicycle with the novel power device as claimed in claim 7, wherein: the second chain wheel, the third chain wheel and the second rotating shaft are fixedly connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392434.6A CN111661232A (en) | 2020-05-11 | 2020-05-11 | Bicycle with novel power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392434.6A CN111661232A (en) | 2020-05-11 | 2020-05-11 | Bicycle with novel power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111661232A true CN111661232A (en) | 2020-09-15 |
Family
ID=72383505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010392434.6A Pending CN111661232A (en) | 2020-05-11 | 2020-05-11 | Bicycle with novel power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111661232A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483303Y (en) * | 2001-03-08 | 2002-03-27 | 张权伟 | Gear wheel transmission type bicycle |
| CN2868823Y (en) * | 2006-01-12 | 2007-02-14 | 周永建 | Drive-axle type bicycle |
| CN2920808Y (en) * | 2006-07-14 | 2007-07-11 | 韩德玮 | Bicycle middle axle mechanism |
| DE202007007739U1 (en) * | 2007-06-01 | 2007-09-27 | Klimas, Joachim | Muscle-powered vehicle |
| TWM368608U (en) * | 2009-06-16 | 2009-11-11 | Univ Chienkuo Technology | Pedaling energy storage device for bicycle |
| CN106143778A (en) * | 2015-04-01 | 2016-11-23 | 鸿富锦精密工业（深圳）有限公司 | Bicycle and electric booster thereof |
| CN206926779U (en) * | 2017-07-19 | 2018-01-26 | 武新明 | Accelarators for bicycles |
-
2020
- 2020-05-11 CN CN202010392434.6A patent/CN111661232A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2483303Y (en) * | 2001-03-08 | 2002-03-27 | 张权伟 | Gear wheel transmission type bicycle |
| CN2868823Y (en) * | 2006-01-12 | 2007-02-14 | 周永建 | Drive-axle type bicycle |
| CN2920808Y (en) * | 2006-07-14 | 2007-07-11 | 韩德玮 | Bicycle middle axle mechanism |
| DE202007007739U1 (en) * | 2007-06-01 | 2007-09-27 | Klimas, Joachim | Muscle-powered vehicle |
| TWM368608U (en) * | 2009-06-16 | 2009-11-11 | Univ Chienkuo Technology | Pedaling energy storage device for bicycle |
| CN106143778A (en) * | 2015-04-01 | 2016-11-23 | 鸿富锦精密工业（深圳）有限公司 | Bicycle and electric booster thereof |
| CN206926779U (en) * | 2017-07-19 | 2018-01-26 | 武新明 | Accelarators for bicycles |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200915 |