CN203496703U - Speed regulating device in electric bicycle - Google Patents
Speed regulating device in electric bicycle Download PDFInfo
- Publication number
- CN203496703U CN203496703U CN201320673883.3U CN201320673883U CN203496703U CN 203496703 U CN203496703 U CN 203496703U CN 201320673883 U CN201320673883 U CN 201320673883U CN 203496703 U CN203496703 U CN 203496703U
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- reaction plate
- crank
- displacement ring
- chain wheel
- adaptor union
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model discloses a speed regulating device in an electric bicycle, wherein the speed regulating device in the electric bicycle is low in cost and good in speed regulating effect. The speed regulating device in the electric bicycle comprises a driving shaft arranged on a frame and a shell fixed to the frame. A crank is arranged on the driving shaft, and a cavity is formed between the crank and the shell. A circuit board is arranged on the inner wall of the shell, a sensor is arranged on the circuit board, a passive crankset connector is arranged between the shell and the crank, the passive crankset connector is connected with the crank through an elastomer, an induction device is arranged between the passive crankset connector and the shell, and the induction device is matched with the sensor so that the sensor can sense the angle difference between the crankshaft and the passive crankset connector. The speed regulating device in the electric bicycle has the advantages that the sensor is utilized for sensing the angle difference between the crank and the passive crankset connector so that the speed of the electric bicycle can be regulated, namely, the speed of the electric bicycle is regulated by changing the output current, thus, manpower and electric power of the electric bicycle can be perfectly combined, a user can ride the electric bicycle with ease on the flat ground, labor and electricity are also saved when the user goes uphill, and meanwhile a certain fitness exercise effect is played.
Description
Technical field
The utility model relates to the speed regulation device in a kind of Electrical Bicycle.
Background technology
Electrical Bicycle, due to features such as its brisk laborsaving and green non-pollutions, is accepted by society just day by day, is widelyd popularize.Conventionally the speed regulation device of Electrical Bicycle is divided into three kinds, and the firstth, adopt mechanical handle to realize; The secondth, the horsepower output that adopts speed sensor to control motor is realized; The third is to adopt analog algorithm to realize the torque sensor of moment conversion.The first is used driven by power completely, and power consumption is large, can continue mileage short.The second is ridden lighter on level land, but go up a slope, require great effort very much by bike.The third sprocket crank sensor cannot directly be exported a linear magnitude of voltage according to the size of power, must rotate after getting up and calculate moment size through micro controller system mould, and not directly perceived, unstable, cost is higher, and it is blunt to respond.
Utility model content
Technical problem to be solved in the utility model is: the speed regulation device in the Electrical Bicycle that a kind of cost is low, speed governing is effective is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the speed regulation device in a kind of Electrical Bicycle, comprise the axle drive shaft being arranged on vehicle frame and be fixed on the shell on vehicle frame, on described axle drive shaft, be provided with crank, between crank and shell, form a cavity, on outer casing inner wall, be provided with circuit card, on circuit card, be provided with sensor, between shell and crank, be provided with by movable chain wheel adaptor union, by movable chain wheel adaptor union, by elastic body, be connected with crank, thereby being provided with between movable chain wheel adaptor union and shell matches with sensor, make sensor can respond to crank and by the induction installation of differential seat angle between movable chain wheel adaptor union.
Described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some projections, projection and being connected by shell fragment respectively between movable chain wheel adaptor union, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on the inwall of displacement ring, be provided with the retaining means equating with shell fragment quantity, retaining means is comprised of two blocks respectively, shell fragment respectively between two corresponding blocks crooked through and two blocks between distance be greater than the thickness of shell fragment, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
On described projection, be respectively arranged with the groove of axially offering along reaction plate, on displacement ring inwall, be provided with the orienting lug that can move in groove.
Describedly on movable chain wheel adaptor union, be provided with the briquetting equating with number of slugs, one end of shell fragment is fixed on by movable chain wheel adaptor union by briquetting, on briquetting, be respectively arranged with the groove of axially offering along reaction plate, on displacement ring inwall, be provided with the orienting lug that can move in groove.
Described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some projections, between adjacent projections, be provided with slide plate, the plane at slide plate and reaction plate place tilts, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on movable chain wheel adaptor union, be provided with pilot bar, displacement ring is slidably arranged in by movable chain wheel adaptor union by this pilot bar, on the inwall of displacement ring, be provided with the retaining means equating with slide plate quantity, retaining means is comprised of two blocks respectively, slide plate is respectively through between corresponding two blocks, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
Described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some slide plates, the plane at slide plate and reaction plate place tilts, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on movable chain wheel adaptor union, be provided with pilot bar, displacement ring is slidably arranged in by movable chain wheel adaptor union by this pilot bar, on the inwall of displacement ring, be provided with the retaining means equating with slide plate quantity, retaining means is comprised of two blocks respectively, slide plate is respectively through between corresponding two blocks, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
Described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some outer skewbacks, side of outer skewback and the plane at reaction plate place tilt, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on movable chain wheel adaptor union, be provided with the guide block equating with outer skewback quantity, on the inwall of displacement ring, being provided with the interior skewback that matches with outer skewback and outer skewback and guide block clamps interior skewback, on the inwall of displacement ring, be provided with the interior skewback matching with outer skewback, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
Described elastic body is torsion spring or the elastic ring that has fracture.
On the outer wall of described displacement ring, be provided with guide rail, bracing frame is slidably arranged on displacement ring by this guide rail.
The beneficial effects of the utility model are: utilize sensor sensing crank and by differential seat angle between movable chain wheel adaptor union, realized the speed governing of Electrical Bicycle, change the speed that outgoing current regulates Electrical Bicycle, so just completed the perfect adaptation of manpower and Electrical Bicycle electric power, both light on level land, also laborsaving power saving of upward slope, also plays certain exercise effect simultaneously.
Accompanying drawing explanation
Fig. 1 is the exploded drawings of the speed regulation device in the utility model Electrical Bicycle while adopting the first induction installation;
Fig. 2 is by the annexation figure of movable chain wheel adaptor union and briquetting in Fig. 1;
Fig. 3 is the annexation figure of reaction plate and transmission dish in Fig. 1;
Fig. 4 is the annexation figure of displacement ring and shell fragment in Fig. 1;
Fig. 5 is reaction plate in the second induction installation, displacement ring and by the annexation figure between movable chain wheel adaptor union;
Fig. 6 is the exploded drawings of Fig. 5;
Fig. 7 is reaction plate in the third induction installation, displacement ring and by the annexation figure between movable chain wheel adaptor union.
In figure: 1, vehicle frame, 2, axle drive shaft, 3, shell, 4, crank, 5, circuit card, 6, sensor, 7, by movable chain wheel adaptor union, 8, transmission dish, 9, reaction plate, 10, projection, 11, shell fragment, 12, briquetting, 13, displacement ring, 14, block, 15, guide rail, 16, bracing frame, 17, magnet steel, 18, guide finger, 19, groove, 20, orienting lug, 21, elastic ring, 22, outer skewback, 23, pilot bar, 24, interior skewback, 25, slide plate, 26, guide block, 27, inclined-plane.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, speed regulation device in Electrical Bicycle described in the utility model, comprise the axle drive shaft 2 being arranged on vehicle frame 1 and be fixed on the shell 3 on vehicle frame 1, on described axle drive shaft 2, be provided with on crank 4(crank, connect foot-operated), between crank 4 and shell 3, form a cavity, on shell 3 inwalls, be provided with circuit card 5, on circuit card 5, be provided with sensor 6(and can adopt hall sensor), between shell 3 and crank 4, be provided with by movable chain wheel adaptor union 7(for sprocket wheel is installed), by movable chain wheel adaptor union 7, by elastic body, (the present embodiment adopts the elastic ring 21 that has fracture, can certainly adopt the elastic bodys such as torsion spring) be connected with crank 4, thereby being provided with between movable chain wheel adaptor union 7 and shell 3 matches with sensor 6, make sensor 6 can respond to crank 4 and by the induction installation of differential seat angle between movable chain wheel adaptor union 7.In the present embodiment, adopt the induction installation of following structure, the first induction installation comprise the reaction plate 9 that is connected with crank 4 by transmission dish 8 and by movable chain wheel adaptor union 7 between reaction plate 9 and crank 4, on the outer circle wall of reaction plate 9, be provided with some projections 10, projection 10 and being connected by shell fragment 11 respectively between movable chain wheel adaptor union 7.In actual production, also can on by movable chain wheel adaptor union 7, be provided with the briquetting 12 equating with projection 10 quantity, one end of shell fragment 11 is fixed on by movable chain wheel adaptor union 7 by briquetting 12, on reaction plate 9, have can be along the axially movable displacement ring 13 of reaction plate 9 for cover, on the inwall of displacement ring 13, be provided with the retaining means equating with shell fragment 11 quantity, retaining means is comprised of two blocks 14 respectively, shell fragment 11 respectively between two corresponding blocks 14 crooked through and two blocks 14 between distance be greater than the thickness (guaranteeing that shell fragment 11 can continue bending) of shell fragment 11, on the outer wall of displacement ring 13, be provided with guide rail 15, on guide rail 15, be provided with the bracing frame 16 that can slide on displacement ring 13 outer walls, on bracing frame 16, be provided with the magnet steel 17 matching with sensor 6, on shell 3, be provided with guide finger 18, bracing frame 16 is enclosed within on guide finger 18 and can be in axial sliding along guide finger 18.The concrete structure that reaction plate 9 and displacement ring 13 can relatively move is: on described projection 10, be respectively arranged with the groove 19 of axially offering along reaction plate 9, on displacement ring 13 inwalls, being provided with can be at the orienting lug 20 of groove 19 interior movements; Or on described briquetting 12, be respectively arranged with the groove 19 of axially offering along reaction plate, on displacement ring 13 inwalls, arranging can be at the orienting lug 20 of groove 19 interior movements.
Certainly in actual production, can also adopt the induction installation of following structure, as Fig. 5, Fig. 6, shown in Fig. 8, the second induction installation comprise the reaction plate 9 that is connected with crank 4 by transmission dish 8 and by movable chain wheel adaptor union 7 between reaction plate 9 and crank 4, on the outer circle wall of reaction plate 9, be provided with some outer skewbacks 22, a side (inclined-plane 27) of outer skewback 22 tilts with the plane at reaction plate 9 places, on reaction plate 9, have can be along the axially movable displacement ring 13 of reaction plate 9 for cover, on movable chain wheel adaptor union 7, be provided with the guide block 26 equating with outer skewback 22 quantity, on the inwall of displacement ring 13, being provided with the interior skewback 24 that matches with outer skewback 22 and outer skewback 22 and guide block 26 clamps interior skewback 24, by movable chain wheel adaptor union 7, utilized guide block 26 to drive displacement ring to rotate like this, when by movable chain wheel adaptor union 7 and reaction plate 9 generation differential seat angle, interior skewback 24 is just extruded by guide block 26 and outer skewback 22, be that displacement ring 13 produces longitudinal travel.On the outer wall of displacement ring 13, be provided with guide rail 15, on guide rail 15, be provided with the bracing frame 16 that can slide on displacement ring 13 outer walls, on bracing frame 16, be provided with the magnet steel 17 matching with sensor 6, on shell 3, be provided with guide finger 18, bracing frame 16 is enclosed within on guide finger 18 and can be in axial sliding along guide finger 18.
Certainly in actual production, can also adopt the induction installation of following structure, as shown in Figure 7, the third induction installation comprise the reaction plate 9 that is connected with crank 4 by transmission dish 8 and by movable chain wheel adaptor union 7 between reaction plate 9 and crank 4, on the outer circle wall of reaction plate 9, be provided with some projections 10, between adjacent projections 10, be provided with the slide plate 25 with certain degree of hardness, or projection 10 is not set on reaction plate 9, and directly slide plate 25 is fixed on the outer wall of reaction plate 9.Slide plate 25 tilts with the plane at reaction plate 9 places, on reaction plate 9, have can be along the axially movable displacement ring 13 of reaction plate 9 for cover, on movable chain wheel adaptor union 7, be provided with pilot bar 23, displacement ring 13 is slidably arranged in by movable chain wheel adaptor union 7 by this pilot bar 23, by movable chain wheel controller 7, utilized pilot bar 23 to drive displacement ring 13 to rotate, once produced differential seat angle by movable chain wheel adaptor union 7 and reaction plate 9, displacement ring 13 will move axially along reaction plate under the effect of slide plate 25.On the inwall of displacement ring 13, be provided with the retaining means equating with slide plate 25 quantity, retaining means is comprised of two blocks 14 respectively, and slide plate 25 is respectively through between corresponding two blocks 14, and the distance between two blocks 14 is without very large herein.On the outer wall of displacement ring 13, be provided with guide rail 15, on guide rail 15, be provided with the bracing frame 16 that can slide on displacement ring 13 outer walls, on bracing frame 16, be provided with the magnet steel 17 matching with sensor 6, on shell 3, be provided with guide finger 18, bracing frame 16 is enclosed within on guide finger 18 and can be in axial sliding along guide finger 18.
While adopting the first induction installation for the utility model below, introduce in detail lower working process of the present utility model: as shown in Figure 1, because crank 4 fit well step on connected, be that manpower acts on crank 4, crank 4 rotates immediately, crank 4 is driven by movable chain wheel adaptor union 7 and is rotated by elastic ring 21, crank 4 also drives reaction plate 13 to rotate by transmission dish 8 simultaneously, and reaction plate 13 and crank 4 are synchronous rotations, reaction plate 9 drives displacement ring 13 to rotate, because bracing frame 16 is slidably arranged on shell by guide finger 18, therefore bracing frame 16 can only move axially along reaction plate 9.Because crank 4 is followed by connected by elastic ring 21 between movable chain wheel adaptor union 7, elastic ring 21 has elasticity, crank 4 and can be produced the delay in a rotation between movable chain wheel adaptor union 7 so, it is differential seat angle, be reaction plate 9 and between movable chain wheel adaptor union 7, also had differential seat angle, reaction plate 9 and be to be again connected by shell fragment 11 between movable chain wheel adaptor union 7, shell fragment 11 continues immediately curved or stretches, but pass through block 14 all to 13 1 non-application forces radially of displacement ring, therefore under the effect of orienting lug 20 and groove 19, displacement ring 13 moves axially along reaction plate 9, magnet steel 17 on bracing frame 16 just with respect to sensor 6 near or away from, sensor 6 changes into signal with soon this variation and issues controller, controller is controlled the rotating speed that outgoing current is adjusted motor, so just completed the perfect adaptation of manpower and Electrical Bicycle electric power, both light on level land, also laborsaving power saving of upward slope, also play certain exercise effect simultaneously.Adopt the roughly the same of the principle of work of the present utility model of the second and the third induction installation and the first, all to convert the horizontal displacement between reaction plate 9 and displacement ring 13 to by crank 4 with by the differential seat angle between movable chain wheel adaptor union 7, thereby make sensor 6 produce signal and issue controller, so the working process of latter two embodiment has just repeated no more.
Claims (9)
1. the speed regulation device in Electrical Bicycle, comprise the axle drive shaft being arranged on vehicle frame and be fixed on the shell on vehicle frame, it is characterized in that: on described axle drive shaft, be provided with crank, between crank and shell, form a cavity, on outer casing inner wall, be provided with circuit card, on circuit card, be provided with sensor, between shell and crank, be provided with by movable chain wheel adaptor union, by movable chain wheel adaptor union, by elastic body, be connected with crank, thereby being provided with between movable chain wheel adaptor union and shell matches with sensor, make sensor can respond to crank and by the induction installation of differential seat angle between movable chain wheel adaptor union.
2. the speed regulation device in Electrical Bicycle according to claim 1, it is characterized in that: described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some projections, projection and being connected by shell fragment respectively between movable chain wheel adaptor union, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on the inwall of displacement ring, be provided with the retaining means equating with shell fragment quantity, retaining means is comprised of two blocks respectively, shell fragment respectively between two corresponding blocks crooked through and two blocks between distance be greater than the thickness of shell fragment, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
3. the speed regulation device in Electrical Bicycle according to claim 2, is characterized in that: on described projection, be respectively arranged with the groove of axially offering along reaction plate, be provided with the orienting lug that can move on displacement ring inwall in groove.
4. the speed regulation device in Electrical Bicycle according to claim 2, it is characterized in that: describedly on movable chain wheel adaptor union, be provided with the briquetting equating with number of slugs, one end of shell fragment is fixed on by movable chain wheel adaptor union by briquetting, on briquetting, be respectively arranged with the groove of axially offering along reaction plate, on displacement ring inwall, be provided with the orienting lug that can move in groove.
5. the speed regulation device in Electrical Bicycle according to claim 1, it is characterized in that: described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some projections, between adjacent projections, be provided with slide plate, the plane at slide plate and reaction plate place tilts, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on movable chain wheel adaptor union, be provided with pilot bar, displacement ring is slidably arranged in by movable chain wheel adaptor union by this pilot bar, on the inwall of displacement ring, be provided with the retaining means equating with slide plate quantity, retaining means is comprised of two blocks respectively, slide plate is respectively through between corresponding two blocks, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
6. the speed regulation device in Electrical Bicycle according to claim 1, it is characterized in that: described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some slide plates, the plane at slide plate and reaction plate place tilts, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on movable chain wheel adaptor union, be provided with pilot bar, displacement ring is slidably arranged in by movable chain wheel adaptor union by this pilot bar, on the inwall of displacement ring, be provided with the retaining means equating with slide plate quantity, retaining means is comprised of two blocks respectively, slide plate is respectively through between corresponding two blocks, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
7. the speed regulation device in Electrical Bicycle according to claim 1, it is characterized in that: described induction installation comprise the reaction plate that is connected with crank and by movable chain wheel adaptor union between reaction plate and crank, on the outer circle wall of reaction plate, be provided with some outer skewbacks, side of outer skewback and the plane at reaction plate place tilt, on reaction plate, have can be along the axially movable displacement ring of reaction plate for cover, on movable chain wheel adaptor union, be provided with the guide block equating with outer skewback quantity, on the inwall of displacement ring, being provided with the interior skewback that matches with outer skewback and outer skewback and guide block clamps interior skewback, on the inwall of displacement ring, be provided with the interior skewback matching with outer skewback, on the outer wall of displacement ring, be provided with the bracing frame that can slide on displacement ring outer wall, on bracing frame, be provided with the magnet steel matching with sensor, on shell, be provided with guide finger, bracing frame is enclosed within on guide finger and can be in axial sliding along guide finger.
8. according to the speed regulation device in the Electrical Bicycle described in claim 1 to 7 any one, it is characterized in that: described elastic body is torsion spring or the elastic ring that has fracture.
9. according to the speed regulation device in the Electrical Bicycle described in claim 2 to 7 any one, it is characterized in that: on the outer wall of described displacement ring, be provided with guide rail, bracing frame is slidably arranged on displacement ring by this guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673883.3U CN203496703U (en) | 2013-10-29 | 2013-10-29 | Speed regulating device in electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673883.3U CN203496703U (en) | 2013-10-29 | 2013-10-29 | Speed regulating device in electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203496703U true CN203496703U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673883.3U Withdrawn - After Issue CN203496703U (en) | 2013-10-29 | 2013-10-29 | Speed regulating device in electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203496703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612702A (en) * | 2013-10-29 | 2014-03-05 | 苏州莱士格车业有限公司 | Speed adjusting device in electric bicycle |
-
2013
- 2013-10-29 CN CN201320673883.3U patent/CN203496703U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612702A (en) * | 2013-10-29 | 2014-03-05 | 苏州莱士格车业有限公司 | Speed adjusting device in electric bicycle |
| CN103612702B (en) * | 2013-10-29 | 2016-06-29 | 苏州莱士格车业有限公司 | Speed regulating device in electric bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20160629 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20160629 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |