CN110641605B - Bicycle power device and bicycle - Google Patents
Bicycle power device and bicycle Download PDFInfo
- Publication number
- CN110641605B CN110641605B CN201911078504.4A CN201911078504A CN110641605B CN 110641605 B CN110641605 B CN 110641605B CN 201911078504 A CN201911078504 A CN 201911078504A CN 110641605 B CN110641605 B CN 110641605B
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- bicycle
- driving
- fixed side
- connecting rod
- side plate
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- 238000010248 power generation Methods 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000006872 improvement Effects 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
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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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
-
- 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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
-
- 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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/75—Rider propelled cycles with auxiliary electric motor power-driven by friction rollers or gears engaging the ground wheel
-
- 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
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/80—Accessories, e.g. power sources; Arrangements thereof
- B62M6/90—Batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/46—Vehicles with auxiliary ad-on propulsions, e.g. add-on electric motor kits for bicycles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
本发明公开了一种自行车动力装置及自行车，其中自行车动力装置包括装置底板及装置上盖，所述装置底板设置有蓄电池、工作组件及驱动电机，所述工作组件包括充电转轴及驱动转轴，所述充电转轴连接有发电装置并进一步与所述蓄电池电性连接，所述驱动转轴连接有驱动装置并进一步电性连接到所述蓄电池，所述工作组件铰接在所述装置底板上，所述驱动电机可驱动工作组件绕着其铰接轴转动；所述自行车包括自行车主体及上述的自行车动力装置。该种自行车动力装置及自行车具有结构简单、实施成本低、可回收能力重复使用、节省体力、减少磨损等现有技术所不具备的优点。
The present invention discloses a bicycle power device and a bicycle, wherein the bicycle power device comprises a device bottom plate and a device top cover, the device bottom plate is provided with a storage battery, a working component and a driving motor, the working component comprises a charging shaft and a driving shaft, the charging shaft is connected with a power generation device and further electrically connected with the storage battery, the driving shaft is connected with a driving device and further electrically connected with the storage battery, the working component is hinged on the device bottom plate, and the driving motor can drive the working component to rotate around its hinge axis; the bicycle comprises a bicycle body and the above-mentioned bicycle power device. The bicycle power device and bicycle have advantages not possessed by the prior art, such as simple structure, low implementation cost, recyclable capacity, repeated use, saving physical strength, and reducing wear.
Description
Technical Field
The invention relates to a technical scheme in the field of bicycle application, in particular to a bicycle power device and a bicycle.
Background
Bicycles are a common and widely used human-powered vehicle. When the bicycle is used, different road conditions are applied, and the force conditions of the users are different. For example, when the bicycle is on an uphill slope or is accelerating, the user needs to pedal the bicycle with great effort, and when the bicycle is on a downhill slope or is on a road condition needing to be decelerating, the user needs to use the brake device to brake, so that the kinetic energy of the bicycle is wasted, the abrasion to the brake device is great, the replacement frequency of the brake device is high, and the economical efficiency is poor.
Accordingly, the present invention is directed to a new solution to solve the existing technical drawbacks.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a bicycle power device and a bicycle, which solve the technical defects of high physical power consumption, serious energy waste, high brake abrasion, short service life, poor economy and the like in the prior art.
The technical scheme adopted for solving the technical problems is as follows:
The utility model provides a bicycle power device, includes device bottom plate and device upper cover, the device bottom plate is provided with battery, work subassembly and driving motor, work subassembly is including charging pivot and drive pivot, the pivot of charging be connected with power generation facility and further with battery electric connection, the drive pivot is connected with drive arrangement and further electric connection to the battery, the work subassembly articulates on the device bottom plate, driving motor can drive work subassembly round its articulated shaft rotation.
As the improvement of above-mentioned technical scheme, the work subassembly includes first fixed curb plate, the fixed curb plate of second and connects the connecting rod between first fixed curb plate and the fixed curb plate of second, charging pivot and drive pivot are installed between first fixed curb plate and the fixed curb plate of second.
As a further improvement of the technical scheme, a through groove is formed in the middle position of the device bottom plate, a component hinge seat is arranged on the side portion of the through groove, and the first fixed side plate and the second fixed side plate are hinged to the component hinge seat through a hinge shaft.
As a further improvement of the technical scheme, a motor base is arranged on the device bottom plate, a motor mounting plate is hinged to the motor base, and the driving motor is fixedly mounted on the motor mounting plate.
As a further improvement of the technical scheme, the output end of the driving motor is provided with a driving screw rod, a driving rotating shaft capable of rotating radially is arranged between the first fixed side plate and the second fixed side plate, a screw rod screw hole matched with the driving screw rod is formed in the middle position of the driving rotating shaft, and the free end of the driving screw rod is matched with the screw rod screw hole.
As a further improvement of the technical scheme, the power generation device further comprises a control circuit board, wherein the control circuit board is fixedly arranged on the device bottom plate through a circuit board fixing back plate, and the control circuit board is electrically connected with the power generation device, the driving device and the storage battery.
As a further improvement of the above technical solution, the device further comprises a device upper cover, wherein the device upper cover is arranged at the upper part of the device bottom plate and covers the storage battery, the working assembly and the driving motor inside the device bottom plate.
As a further improvement of the technical scheme, the side part of the upper cover of the device is provided with a loudspeaker, the front part of the upper cover of the device is provided with a functional panel, the functional panel is provided with an external power input socket and a power output charging port, and the loudspeaker, the external power input socket and the power output charging port are electrically connected with the control circuit board.
A bicycle comprises a bicycle main body, wherein the bicycle power device is fixedly arranged on the bicycle main body, and a driving motor in the bicycle power device can drive a working assembly to rotate and enable a charging rotating shaft or a driving rotating shaft in the working assembly to be in rolling fit with wheels of the bicycle main body.
As the improvement of above-mentioned technical scheme, bicycle power device passes through multiunit connecting device fixed mounting in the rear wheel top of bicycle main part, connecting device includes the head rod of fixed connection in the bicycle main part, the second connecting rod of fixed connection in bicycle power device bottom and connects the middle adjusting nut between head rod and second connecting rod, head rod and second connecting rod are provided with the screw thread opposite in direction in its one end that is close to, middle adjusting nut is provided with the internal thread of opposite in direction and adaptation head rod and second connecting rod respectively at its inside both ends.
The bicycle power device and the bicycle have the advantages that the bicycle power device can utilize kinetic energy of the wheels to generate electricity and store energy or utilize energy of the storage battery to drive the wheels to rotate according to requirements, and the bicycle power device and the bicycle have the advantages of recovering energy, saving physical strength of a user, reducing abrasion of a brake device, prolonging service life, improving use experience and the like when the bicycle is applied.
In a word, this kind of bicycle power device and bicycle have solved the technical defect such as the wasting of energy is big, the energy waste is serious, brake wearing and tearing are big, life is short, economic nature is poor that prior art exists.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic illustration of an assembled bicycle power device in accordance with the present invention;
FIG. 2 is a schematic view of an assembled bicycle power device at another angle in accordance with the present invention;
FIG. 3 is a schematic view of an internal structure assembly of the bicycle power device of the present invention;
FIG. 4 is a schematic view of the construction of the working assembly of the present invention;
FIG. 5 is a schematic view of the construction of the working assembly of the present invention at another angle;
FIG. 6 is a schematic view of an assembled bicycle in accordance with the present invention.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the invention can be interactively combined on the premise of not contradicting and conflicting, and refer to figures 1-6.
Referring specifically to fig. 1-5, a bicycle power device comprises a device bottom plate 11 and a device upper cover 12, wherein the device bottom plate 11 is provided with a storage battery 2, a working assembly 3 and a driving motor 4, the working assembly 3 comprises a charging rotating shaft 31 and a driving rotating shaft 32, the charging rotating shaft 31 is connected with a power generation device and is further electrically connected with the storage battery 2, the driving rotating shaft 32 is connected with a driving device and is further electrically connected to the storage battery 2, the working assembly 3 is hinged on the device bottom plate 11, and the driving motor 4 can drive the working assembly 3 to rotate around a hinge shaft of the driving motor.
Preferably, the working assembly 3 includes a first fixed side plate 33, a second fixed side plate 34, and a connecting rod 35 connected between the first fixed side plate 33 and the second fixed side plate 34, and the charging shaft 31 and the driving shaft 32 are installed between the first fixed side plate 33 and the second fixed side plate 34; a through groove is formed in the middle position of the device bottom plate 11, a component hinge seat 111 is arranged on the side part of the through groove, and the first fixed side plate 33 and the second fixed side plate 34 are hinged on the component hinge seat 111 through hinge shafts; the device bottom plate 11 is provided with a motor seat 36, a motor mounting plate 37 is hinged on the motor seat 36, and the driving motor 4 is fixedly mounted on the motor mounting plate 37; the power generation device comprises a driving screw 41 arranged at the output end of a driving motor 4, a driving rotating shaft 38 capable of rotating radially arranged between a first fixed side plate 33 and a second fixed side plate 34, a screw hole matched with the driving screw 41 and arranged at the middle position of the driving rotating shaft 38, a control circuit board 5 fixedly arranged on a device bottom plate 11 through a circuit board fixing back plate 51, a control circuit board 5 electrically connected with the power generation device, the driving device and a storage battery 2, and a device upper cover 12 arranged on the upper part of the device bottom plate 11 and covering the storage battery 2, a working assembly 3 and the driving motor 4 inside the device upper cover 12, a loudspeaker 6 arranged on the side part of the device upper cover 12, a functional panel 7 arranged at the front part of the device upper cover 12, an external power input socket 71 and a power output charging port 72 arranged on the functional panel 7, and a loudspeaker 6, the external power input socket 71 and the power output charging port 72 are electrically connected to the control circuit board 5.
In the case of the present invention, when the vehicle is going downhill, the driving motor 4 drives the working assembly 3 to rotate around the hinge shaft thereof through the driving shaft 38 and the driving screw 41, further, the working assembly 3 drives the charging shaft 31 to move and enables the charging shaft 31 to be in rolling fit with the rear wheel tyre of the bicycle main body 9, the driving shaft 32 is far away from the tyre, in this state, the tyre of the bicycle main body 9 drives the charging shaft 31 to rotate, the charging shaft 31 generates electricity in the rotation process and finally stores electric energy in the battery 2, meanwhile, the charging shaft 31 applies a certain friction force to the wheel tyre, thereby intangibly forming a deceleration effect for the bicycle, and intangibly reducing the loss of the deceleration device (such as a deceleration friction plate, a friction skin) of the bicycle, etc., which is beneficial to prolonging the service life.
In another use state, namely when the bicycle needs to be accelerated or needs manpower to maintain the speed, the driving motor 4 drives the working assembly 3 to rotate around the hinge shaft through the driving rotating shaft 38 and the driving screw 41, further, the working assembly 3 drives the driving rotating shaft 32 to move and enables the charging driving shaft 32 to be in rolling fit with the rear wheel tyre of the bicycle main body 9, the charging rotating shaft 31 is far away from the tyre, in this state, the storage battery 2 can drive the driving rotating shaft 32 to move, the driving rotating shaft 32 can further drive the rear wheel of the bicycle main body 1 to rotate, so that a main power is provided for the bicycle, the manpower is saved, the energy recycling function is achieved, and the use experience is facilitated to be improved.
When the speed is not required to be reduced and no effort is required, the driving motor 4 drives the working assembly 3 to be at the middle position, and the charging rotating shaft 31 and the driving rotating shaft 32 are far away from the tire.
In addition, the speaker 6, the external power input socket 71 and the power output charging port 72 can effectively improve the use experience and expand the functions, and further improve the convenience of use.
In this embodiment, the battery 2 is preferably a 24V battery.
Referring specifically to fig. 6, based on the above-mentioned bicycle power center device, the invention also provides a bicycle, which comprises a bicycle main body 9, wherein the bicycle main body 9 is fixedly provided with the bicycle power device, a driving motor 4 in the bicycle power device can drive a working assembly 3 to rotate and enable a charging rotating shaft 31 or a driving rotating shaft 32 in the working assembly 3 to be in rolling fit with wheels of the bicycle main body 9, the bicycle power device is fixedly arranged above a rear wheel of the bicycle main body 9 through a plurality of groups of connecting devices 8, the connecting devices 8 comprise a first connecting rod 81 fixedly connected to the bicycle main body 9, a second connecting rod 82 fixedly connected to the bottom of the bicycle power device and an intermediate adjusting nut 83 connected between the first connecting rod 81 and the second connecting rod 82, the first connecting rod 81 and the second connecting rod 82 are provided with threads with opposite directions at one ends close to the first connecting rod 81 and the second connecting rod 82, and the intermediate adjusting nut 83 is provided with internal threads with opposite directions and respectively adapting to the first connecting rod 81 and the second connecting rod 82 at two ends inside the intermediate adjusting nut.
The distance between the bicycle power device and the bicycle main body 9 can be adjusted by adjusting the middle adjusting nut 83, so that the charging rotating shaft 31 and the driving rotating shaft 32 on the bicycle power device can be well matched with the tyre of the bicycle main body 9.
While the preferred embodiment of the present application has been described in detail, the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present application, and the equivalent modifications or substitutions are included in the scope of the present application as defined in the appended claims.
Claims (7)
1. The bicycle power device is characterized by comprising a device bottom plate (11) and a device upper cover (12), wherein the device bottom plate (11) is provided with a storage battery (2), a working assembly (3) and a driving motor (4), the working assembly (3) comprises a charging rotating shaft (31) and a driving rotating shaft (32), the charging rotating shaft (31) is connected with a power generation device and is further electrically connected with the storage battery (2), the driving rotating shaft (32) is connected with a driving device and is further electrically connected to the storage battery (2), the working assembly (3) is hinged on the device bottom plate (11), and the driving motor (4) can drive the working assembly (3) to rotate around a hinged shaft of the driving motor;
The working assembly (3) comprises a first fixed side plate (33), a second fixed side plate (34) and a connecting rod (35) connected between the first fixed side plate (33) and the second fixed side plate (34), and the charging rotating shaft (31) and the driving rotating shaft (32) are arranged between the first fixed side plate (33) and the second fixed side plate (34);
the output end of the driving motor (4) is provided with a driving screw rod (41), a driving shaft (38) capable of rotating radially is arranged between the first fixed side plate (33) and the second fixed side plate (34), a screw rod screw hole matched with the driving screw rod (41) is formed in the middle position of the driving shaft (38), and the free end of the driving screw rod (41) is installed in the screw rod screw hole in a matched mode;
The middle position of the device bottom plate (11) is provided with a through groove, the side part of the through groove is provided with a component hinging seat (111), and the first fixed side plate (33) and the second fixed side plate (34) are hinged and installed on the component hinging seat (111) through a hinging shaft.
2. A bicycle power device according to claim 1, wherein a motor mount (36) is provided on the device base plate (11), a motor mount plate (37) is mounted on the motor mount (36) in a hinged manner, and the drive motor (4) is fixedly mounted on the motor mount plate (37).
3. The bicycle power device according to claim 1, further comprising a control circuit board (5), wherein the control circuit board (5) is fixedly mounted on the device bottom plate (11) through a circuit board fixing back plate (51), and the control circuit board (5) is electrically connected with the power generation device, the driving device and the storage battery (2).
4. A bicycle power device according to claim 3, further comprising a device upper cover (12), said device upper cover (12) being provided on the upper part of the device bottom plate (11) and covering the battery (2), the working assembly (3) and the driving motor (4) inside thereof.
5. The bicycle power device according to claim 4, wherein the side of the device upper cover (12) is provided with a speaker device (6), the front of the device upper cover (12) is provided with a functional panel (7), the functional panel (7) is provided with an external power input socket (71) and a power output charging port (72), and the speaker device (6), the external power input socket (71) and the power output charging port (72) are electrically connected with the control circuit board (5).
6. A bicycle, characterized by comprising a bicycle main body (9), wherein the bicycle main body (9) is fixedly provided with the bicycle power device according to any one of claims 1-5, and a driving motor (4) in the bicycle power device can drive a working assembly (3) to rotate and enable a charging rotating shaft (31) or a driving rotating shaft (32) in the working assembly (3) to be in rolling fit with wheels of the bicycle main body (9).
7. A bicycle as claimed in claim 6, wherein the bicycle power device is fixedly arranged above the rear wheel of the bicycle main body (9) through a plurality of groups of connecting devices (8), the connecting devices (8) comprise a first connecting rod (81) fixedly connected to the bicycle main body (9), a second connecting rod (82) fixedly connected to the bottom of the bicycle power device and an intermediate adjusting nut (83) connected between the first connecting rod (81) and the second connecting rod (82), threads with opposite directions are arranged at one ends, close to the first connecting rod (81) and the second connecting rod (82), of the intermediate adjusting nut (83), and internal threads with opposite directions and respectively matched with the first connecting rod (81) and the second connecting rod (82) are arranged at two ends inside the intermediate adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078504.4A CN110641605B (en) | 2019-11-06 | 2019-11-06 | Bicycle power device and bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078504.4A CN110641605B (en) | 2019-11-06 | 2019-11-06 | Bicycle power device and bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110641605A CN110641605A (en) | 2020-01-03 |
| CN110641605B true CN110641605B (en) | 2024-12-27 |
Family
ID=69014397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911078504.4A Active CN110641605B (en) | 2019-11-06 | 2019-11-06 | Bicycle power device and bicycle |
Country Status (1)
| Country | Link |
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| CN (1) | CN110641605B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211167277U (en) * | 2019-11-06 | 2020-08-04 | 深圳市永轮智能设备科技有限公司 | Bicycle power device and bicycle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203937816U (en) * | 2014-06-30 | 2014-11-12 | 钱黎刚 | Booster of bicycle and bicycle |
| CN205150142U (en) * | 2015-10-23 | 2016-04-13 | 李绣峰 | Bicycle booster unit and moped |
| CN107264708A (en) * | 2017-06-09 | 2017-10-20 | 江苏大学 | A kind of electric booster |
| CN206885269U (en) * | 2017-06-13 | 2018-01-16 | 杨家波 | A kind of electric booster for bicycle |
| US20190291815A1 (en) * | 2018-03-23 | 2019-09-26 | Alizeti Ubimobil Inc. | Friction drive system for bicycle |
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2019
- 2019-11-06 CN CN201911078504.4A patent/CN110641605B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211167277U (en) * | 2019-11-06 | 2020-08-04 | 深圳市永轮智能设备科技有限公司 | Bicycle power device and bicycle |
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| CN110641605A (en) | 2020-01-03 |
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