CN103129688B - Folding electric bicycle - Google Patents
Folding electric bicycle Download PDFInfo
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- CN103129688B CN103129688B CN201310090907.7A CN201310090907A CN103129688B CN 103129688 B CN103129688 B CN 103129688B CN 201310090907 A CN201310090907 A CN 201310090907A CN 103129688 B CN103129688 B CN 103129688B
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- electric bicycle
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Abstract
The invention discloses a kind of bicycle, a particularly folding electric bicycle, comprises a seat-assembly, a Handleset, a direction assembly, a chassis assembly, a manpower driven unit and front vehicle wheel and rear wheel, is characterized in that, described folding electric bicycle is also provided with driven by power assembly, it comprises a power supply box, and described power supply box is arranged on chassis assembly, on the position between seat-assembly and trailing wheel; Described power supply box is provided with internal battery, source switch and charging inlet.The present invention is not only further improved the Fold-Combined mode of bicycle, appropriate design lithium cell power drives on bicycle structure simultaneously, improve the power system of bicycle, have concurrently when folding electric bicycle is used powerful, easy to use, be convenient to the features such as movement and storage.
Description
Technical field
The present invention relates to bicycle art, particularly disclose a kind of folding Electronmotive Force bicycle.
Background technology
Manufacture and the use of bicycle have had the history of upper a century, bicycle has the features such as light, healthy, Green Travel, but along with the quickening of people's rhythm of life, bicycle and man cannot meet the life and work requirement of people, in each big city, the use of battery-driven car seems more general, but battery-driven car is subject to the impact of its electrical equipment, volume is comparatively large, carrying inconvenience.
Taking up space although known Folding Bicycle can reduce, this Folding Bicycle cannot adopt Electronmotive Force.And market does not provide yet a kind of battery-driven car that can fold, make it collapsible as bicycle, the volume after enabling it folding puts common knapsack into, and so light and handy that can to carry the battery-driven car dealing with long journey needs for a long time again.
In general, normally used battery-driven car in city, no matter brand or quality, all have a shortcoming, when not using battery-driven car, it still occupies certain space exactly.Why lightly portable Electrical Bicycle becomes more and more important, and is because it can provide a kind of individual transportation mode to fill up the unappeasable rising demand of mass transit system.This demand is obvious especially in situation on and off duty, the working clan of suburb, township inhabitation urban work, often need to go to bus or subway station on foot, after experiencing one section of crowded public transport means every day, arrived potential range work place, station, destination and also had stretch journey.If use battery-driven car, need to take how to place battery-driven car in accommodation into account on the one hand, subway on battery-driven car band is again a larger problem by another aspect, particularly crowded only with in the railway carriage of standing.Although abroad some bus provides cycle frame and places bicycle for passenger, this vehicle frame is definitely unable to cope with the huger battery-driven car of build.
Another needs the field broken through to be that the people making upper body strength less also can use portable electric bicycle, reach this object, and battery-driven car needs lighter weight, less volume.Because battery-driven car is light compared with automobile, comparatively bicycle is heavier, different from the closed state of automobile, it is larger that battery-driven car is placed on outdoor stolen risk, for the purpose of safety, user generally wishes battery-driven car to be laid at home or indoor, but a battery-driven car is usually abnormal heavy, it is very inconvenient to carry, and is a quite heavy weight, the people that is short of physical strength slim and frahile for an idiotype.So weight issue makes popular the failing of part enjoy the benefit using battery-driven car to bring.
In the use aspect of battery-driven car, the reason that battery-driven car Occupation coefficient rises is that user stores battery-driven car in advance in order to using when bus or railway can not provide service time a lot.In this case, more parking space continuously is just needed.But in big city, oneself is less and less for the office space of employee.For dealing with above-mentioned all demands, depositing with carrying this two problems of battery-driven car is all problem demanding prompt solutions.
Summary of the invention
The present invention seeks to solve the present situation that battery-driven car moved and stored inconvenience, bicycle power deficiency, a kind of folding electric bicycle is provided.
To achieve these goals, the concrete technical scheme of folding electric bicycle disclosed by the invention is:
A kind of folding electric bicycle, comprise a seat-assembly, a Handleset, a direction assembly, a chassis assembly, a manpower driven unit and front vehicle wheel and rear wheel, it is characterized in that, described folding electric bicycle is also provided with driven by power assembly, and it comprises a power supply box, described power supply box is arranged on chassis assembly, on the position between seat-assembly and trailing wheel; Described power supply box is provided with internal battery, source switch and charging inlet.
Further, described seat-assembly comprises a seat, a upper support tube and lower support pipe pillar stiffener, described upper support tube connecting chair, and is sleeved in lower support pipe; Described upper support tube and lower support pipe junction press from both sides with rapid-releasing.
Further, described lower support pipe upper end is coupling pillar stiffener, and the place that is coupling, with spring, makes pillar stiffener in its natural state away from lower support pipe; Described chassis assembly is provided with the groove corresponding with pillar stiffener and the opening corresponding with lower support pipe, and lower support pipe can slide up and down along this opening; Pillar stiffener in the groove of the state lower support away from lower support pipe on chassis assembly, the opening of pillar stiffener under the state near lower support pipe on corresponding chassis assembly.
Further, Handleset comprises the handle of right-angle structure and main control lever, with lock bolt button on the vertical direction of handle, described main control lever is provided with some draw-in grooves, be at least upper end vertical direction two, each one of horizontal direction both sides, corresponding respectively at the lock bolt button on handle.
Further, described direction assembly comprises direction lever upper boom, direction lever lower beam, and urceolus, direction lever upper boom and direction lever lower beam adopt sleeve-type to be connected, direction lever upper boom and direction lever lower beam junction are provided with rapid-releasing folder, direction lever low stem casing is contained in urceolus, and described urceolus is fixedly connected with chassis assembly, enables direction assembly realize horizontal direction 360 degree rotation; Described direction lever lower beam connects front vehicle wheel.
Further, described chassis assembly comprises front-axle beam, the back rest and bindiny mechanism; Described front-axle beam rear end is coupling bindiny mechanism, and bindiny mechanism rear end is coupling the back rest; Described front-axle beam is provided with damping spring; Described power supply box is arranged on the back rest.
Further, described bindiny mechanism is banded loop configuration, and it is suitable for reading comparatively lower young, described front-axle beam and the back rest are screwed onto on the inwall at bindiny mechanism front and rear respectively, when folding electric bicycle is launched, front-axle beam and the back rest are against the lower edge of bindiny mechanism respectively, and can only rotate, and can not upwards rotate; Described bindiny mechanism rear is with groove, and when folding electric bicycle launches, the pillar stiffener of seat-assembly is supported in groove; When folding electric bicycle is packed up, Open Side Down moves, until pillar stiffener is against bindiny mechanism's upper rear end edge along bindiny mechanism for seat-assembly; Described bindiny mechanism's nock is with handle.
Further, described manpower driven unit is with driving wheel, sprocket wheel, drive wheel and two stretchers, and wherein driving wheel is arranged on chassis assembly, is fixedly connected with two crank pedals, drives driving wheel to rotate by rotating stretcher; Driving wheel is by chain-driving sprocket rotation, and sprocket wheel is rotated by chain-driving drive wheel; Described drive wheel is fixedly connected with rear wheel with one heart.
Further, described driven by power assembly also comprises indicator lamp, is arranged on Handleset; And by electric wire connecting handle and rear wheel; Driven by power assembly is provided with one to one force aid system, and Direct driver chain rotates.
As preferably, wherein at least one wheel of front vehicle wheel and rear wheel is provided with a disc brake brake disc, and comprises one further at least partly around the cable of described disc brake brake disc, thus disc brake brake disc can be tightened up and brake described wheel.
Compared with prior art, tool has the following advantages and effect in the present invention:
The present invention not only can drive with manpower, but also can use driven by power, remains all advantages of portable folding bicycle completely simultaneously.The present invention is not only further improved the Fold-Combined mode of bicycle, appropriate design lithium cell power drives on bicycle structure simultaneously, improve the power system of bicycle, have concurrently when folding electric bicycle is used powerful, easy to use, be convenient to the features such as movement and storage.
Accompanying drawing explanation
fig. 1 is left view after the present embodiment launches;
Fig. 2 is right elevation after the present embodiment launches;
Fig. 3 is the present embodiment foldable structure view;
Fig. 4 is that the present embodiment handle folds view;
Wherein:
1-seat-assembly, 11-seat, the upper support tube of 12-, 13-lower support pipe, 14-pillar stiffener, 15-rapid-releasing press from both sides;
2-Handleset, 21-right handles, 22-left handle, 23-right handle lock bolt button, 24-left handle lock bolt button, 25-draw-in groove, the main control lever of 27-;
3-direction assembly, 31-direction lever upper boom, 32-direction lever lower beam, 33-rapid-releasing folder, 37-urceolus;
4-chassis assembly, 41-front-axle beam, the 42-back rest, 43-bindiny mechanism, 44-damping spring, 47-handle;
5-manpower driven unit, 51-driving wheel, 52-Vehicular left pedal, 53-right steps, the left crank of 54-, the right crank of 55-, 56-sprocket wheel, 57-drive wheel;
7-driven by power assembly, 71-power supply box, 72-source switch, 73-charging inlet, 74-indicator lamp;
8-front vehicle wheel, 81-front-wheel disc brake brake disc;
9-rear wheel, 91-rear-wheel disc brake brake disc, 92-foot support.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
The deployed condition of the present embodiment is as shown in Figure 1 and Figure 2:
A kind of folding electric bicycle, comprises a seat-assembly 1, Handleset 2, direction assembly 3, chassis assembly 4, manpower driven unit 5 and front vehicle wheel 8 and rear wheel 9, is also provided with driven by power assembly 7.
Seat-assembly 1 comprises the upper support tube 12 of a seat 11, and a lower support pipe 13 1 pillar stiffeners 14, described upper support tube 12 connecting chair 11, and is sleeved in lower support pipe 13; Described upper support tube 12 and lower support pipe 13 junction are with rapid-releasing folder 15; Support tube 12 can also arrange seat latch button on described, the some perforates arranged with lower support pipe 13 match, and when making to move up and down support tube 12, seat latch button is buckled in different tappings, to adjust the height of seat 11.
Lower support pipe 13 upper end is coupling pillar stiffener 14, and the place that is coupling, with spring, makes pillar stiffener 14 in its natural state away from lower support pipe 13; Described chassis assembly 4 is provided with the groove corresponding with pillar stiffener 14 and the opening corresponding with lower support pipe 13, and this opening makes lower support pipe 13 can slide up and down along this opening; Pillar stiffener 14 in the groove of the state lower support away from lower support pipe 13 on chassis assembly 4, the opening of pillar stiffener 14 under the state near lower support pipe 13 on corresponding chassis assembly 4.Under described folding electric bicycle deployed condition, described seat-assembly 1 entirety is positioned at the top of chassis assembly 4.
Handleset 2 comprises the right handles 21 of right-angle structure, left handle 22 and main control lever 27, with lock bolt button 23,24 on the vertical direction of handle 21,22, described main control lever 27 is provided with some draw-in grooves 25, to adjust the position of handle.In the present embodiment, main control lever 27 is provided with four draw-in grooves 25, upper end vertical direction two, each one of horizontal direction both sides, corresponding respectively at the lock bolt button 23,24 on handle 21,22.Under described folding electric bicycle deployed condition, described right handles 21, left handle 22 are positioned at level attitude, and lock bolt button 23,24 is positioned at vertical position, and lock bolt button 23,24 correspondence is in two draw-in grooves 25 of main control lever 27 upper end vertical direction.
Direction assembly 3 comprises direction lever upper boom 31, direction lever lower beam 32, with urceolus 37, direction lever upper boom 31 adopts sleeve-type to be connected with direction lever lower beam 32, direction lever upper boom 31 and direction lever lower beam 32 junction are provided with rapid-releasing folder 33, direction lever lower beam 32 is sleeved in urceolus 37, described urceolus 37 is fixedly connected with chassis assembly 4, makes direction assembly 3 can realize horizontal direction 360 degree rotation; Described direction lever lower beam 32 connects front vehicle wheel 8.Direction lever upper boom 31 connecting handle assembly 2, turning handle assembly 2 drives direction lever 31 and direction lever lower beam 32, and then drives front vehicle wheel 8 to rotate, thus adjustment direction of traffic.
Chassis assembly 4 comprises front-axle beam 41, the back rest 42 and bindiny mechanism 43; Described front-axle beam 41 rear end is coupling bindiny mechanism 43, and bindiny mechanism 43 rear end is coupling the back rest 42; Described front-axle beam 41 is provided with damping spring 44; Described power supply box 71 is arranged on the back rest 42.
In the present embodiment, bindiny mechanism 43 is banded loop configuration, and it is suitable for reading comparatively lower young, front-axle beam 41 and the back rest 42 are screwed onto on the inwall at bindiny mechanism 43 front and rear respectively, when folding electric bicycle is launched, front-axle beam 41 and the back rest 42 are against the lower edge of bindiny mechanism 43 respectively, and can only rotate, and can not upwards rotate; Bindiny mechanism 43 rear is with groove, and when folding electric bicycle launches, pillar stiffener 14 is supported in groove; Described bindiny mechanism 43 nock, with handle 47, is convenient to folding Electrical Bicycle of the present invention.Also be provided with a stirrup in the present embodiment simultaneously, connect front-axle beam 41 and the back rest 42, when the present invention is used, have more safety.
Manpower driven unit 5 is with driving wheel 51, sprocket wheel 56, drive wheel 57 and Vehicular left pedal 52, right steps 53, wherein driving wheel 51 is arranged in the bindiny mechanism 43 of chassis assembly 4, be fixedly connected with the Vehicular left pedal 52 of connecting crank, right steps 53, by rotating Vehicular left pedal 52, right steps 53 drives driving wheel 51 to rotate; Driving wheel 51 is rotated by chain-driving sprocket wheel 56, and sprocket wheel 56 is arranged on bindiny mechanism 43 and the back rest 42 junction, is rotated by chain-driving drive wheel 57; Described drive wheel 57 is fixedly connected with rear wheel 9 with one heart.
Driven by power assembly 7 comprises a power supply box 71, and described power supply box 71 is arranged on chassis assembly 4, on the position between seat-assembly 1 and trailing wheel 9, saves space, and can not affect the normal use of bicycle; Described power supply box 71 is provided with internal battery, source switch 72 and charging inlet 73.In the present embodiment, described internal battery adopts lithium cell.Also comprise indicator lamp 74, be arranged in right handles 21; And connect power supply box 71 and rear wheel 9 by electric wire; Driven by power assembly 7 is provided with one to one force aid system, and Direct driver sprocket wheel 56 rotates.
Front vehicle wheel 8 and rear wheel 9 are provided with the disc brake brake disc 81,91 of connecting handle brake, thus left handle 22 can be controlled and disc brake brake disc 81,91 tightens up and brakes described wheel by right handles 21.
The collapsed state of the present embodiment is as shown in Figure 3:
When folding electric bicycle is packed up, the upper support bar 12 of seat-assembly 1 is overlapped and loads in lower support pipe 13, the direction lever upper boom 31 of direction assembly 3 is overlapped and loads in direction lever lower beam 32, be namely inserted in urceolus 37, make the vertical height reduction of folding electric bicycle.
Pillar stiffener 14 is deviate from groove, and downward support tube 13 is close; Mention handle 47, drive bindiny mechanism 43 upward movement, seat-assembly 1 moves downward relatively along the opening of bindiny mechanism 43, until pillar stiffener 14 is against bindiny mechanism 43 upper rear end edge.Front-axle beam 41 and the back rest 42 move downward respectively, until front vehicle wheel 8 and rear wheel 9 are nuzzled, the now bottom of the back rest 42 upper end, exceed the upper end of pillar stiffener 14, put down handle 47, make front vehicle wheel 8 and a bit of distance of rear wheel 9 self-assembling formation, then the bottom of the back rest 42 upper end is just stuck in the upper end of pillar stiffener 14, make bicycle locked, be in folded state always, can not because of moving or jolting and scatter.
In addition, the folding electric bicycle in the present embodiment is also with foot support 92.
Above a kind of folding electric bicycle provided by the present invention is described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications.In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (9)
1. a folding electric bicycle, comprise a seat-assembly (1), a Handleset (2), a direction assembly (3), a chassis assembly (4), a manpower driven unit (5) and front vehicle wheel (8) and rear wheel (9), it is characterized in that, described folding electric bicycle is also provided with driven by power assembly (7), it comprises a power supply box (71), described power supply box (71) is arranged on chassis assembly (4), on the position between seat-assembly (1) and trailing wheel (9), described power supply box (71) is provided with internal battery, source switch (72) and charging inlet (73), described seat-assembly (1) comprises a seat (11), a upper support tube (12) and a lower support pipe (13) pillar stiffeners (14), described upper support tube (12) connecting chair (11), and be sleeved in lower support pipe (13), described lower support pipe (13) upper end is coupling pillar stiffener (14), be coupling place with spring, make pillar stiffener (14) in its natural state away from lower support pipe (13), described chassis assembly (4) is provided with the groove corresponding with pillar stiffener (14) and the opening corresponding with lower support pipe (13), and lower support pipe (13) can slide up and down along this opening, pillar stiffener (14) in the groove of the state lower support away from lower support pipe (13) on chassis assembly (4), the opening of pillar stiffener (14) under the state near lower support pipe (13) on corresponding chassis assembly (4).
2. folding electric bicycle as claimed in claim 1, is characterized in that: described upper support tube (12) and lower support pipe (13) junction are with rapid-releasing folder (15).
3. folding electric bicycle as claimed in claim 1, it is characterized in that: Handleset (2) comprises handle (21,22) and the main control lever (27) of right-angle structure, with lock bolt button (23,24) on the vertical direction of handle (21,22), described main control lever (27) is provided with some draw-in grooves (25), be at least upper end vertical direction two, each one of horizontal direction both sides, corresponding respectively at the lock bolt button (23,24) on handle (21,22).
4. folding electric bicycle as claimed in claim 1, it is characterized in that: described direction assembly (3) comprises direction lever upper boom (31), direction lever lower beam (32), with urceolus (37), direction lever upper boom (31) and direction lever lower beam (32) adopt sleeve-type to be connected, direction lever upper boom (31) and direction lever lower beam (32) junction are provided with rapid-releasing folder (33), direction lever lower beam (32) is sleeved in urceolus (37), described urceolus (37) is fixedly connected with chassis assembly (4), make direction assembly (3) that horizontal direction 360 degree rotation can be realized, described direction lever lower beam (32) connects front vehicle wheel (8).
5. folding electric bicycle as claimed in claim 1, is characterized in that: described chassis assembly (4) comprises front-axle beam (41), the back rest (42) and bindiny mechanism (43); Described front-axle beam (41) rear end is coupling bindiny mechanism (43), and bindiny mechanism (43) rear end is coupling the back rest (42); Described front-axle beam (41) is provided with damping spring (44); Described power supply box (71) is arranged on the back rest (42).
6. folding electric bicycle as claimed in claim 5, it is characterized in that: described bindiny mechanism (43) is loop configuration, and it is suitable for reading comparatively lower young, described front-axle beam (41) and the back rest (42) are screwed onto on the inwall at bindiny mechanism (43) front and rear respectively, when folding electric bicycle is launched, front-axle beam (41) and the back rest (42) are against the lower edge of bindiny mechanism (43) respectively, and can only rotate, can not upwards rotate; Described bindiny mechanism (43) rear is with groove, and when folding electric bicycle launches, the pillar stiffener (14) of seat-assembly (1) is supported in groove; When folding electric bicycle is packed up, seat-assembly (1) along bindiny mechanism (43) Open Side Down motion, until pillar stiffener (14) is against bindiny mechanism (43) upper rear end edge; Described bindiny mechanism (43) nock is with handle (47).
7. folding electric bicycle as claimed in claim 1, it is characterized in that: described manpower driven unit (5) is with driving wheel (51), sprocket wheel (56), drive wheel (57) and two stretchers (52,53), wherein driving wheel (51) is arranged on chassis assembly (4), being fixedly connected with two crank pedals (52,53), driving driving wheel (51) to rotate by rotating stretcher (52,53); Driving wheel (51) is rotated by chain-driving sprocket wheel (56), and sprocket wheel (56) is rotated by chain-driving drive wheel (57); Described drive wheel (57) is fixedly connected with rear wheel (9) with one heart.
8. folding electric bicycle as claimed in claim 1, is characterized in that: described driven by power assembly (7) also comprises indicator lamp (74), is arranged on Handleset (2); And by electric wire connecting handle (21) and rear wheel (9); Driven by power assembly (7) is provided with one to one force aid system, and Direct driver sprocket wheel (56) rotates.
9. folding electric bicycle as claimed in claim 1, it is characterized in that: wherein at least one wheel of front vehicle wheel (8) and rear wheel (9) is provided with a disc brake brake disc (81,91), and comprise one further at least partly around the cable of described disc brake brake disc (81,91), thus disc brake brake disc (81,91) can be tightened up and braked described wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090907.7A CN103129688B (en) | 2013-03-21 | 2013-03-21 | Folding electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090907.7A CN103129688B (en) | 2013-03-21 | 2013-03-21 | Folding electric bicycle |
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| Publication Number | Publication Date |
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| CN103129688A CN103129688A (en) | 2013-06-05 |
| CN103129688B true CN103129688B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310090907.7A Active CN103129688B (en) | 2013-03-21 | 2013-03-21 | Folding electric bicycle |
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| CN (1) | CN103129688B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192245B (en) * | 2014-09-05 | 2017-07-21 | 安溪县印象风格工艺品有限公司 | A kind of X-shaped folded portable electric bicycle |
| KR102014037B1 (en) * | 2016-11-03 | 2019-08-23 | 센젠 비에스티카 테크놀로지 컴퍼니 리미티드 | Folding frame and folding vehicle |
| CN109050776B (en) * | 2018-06-22 | 2021-07-06 | 龙锦雄 | Power device of manpower trolley and manpower trolley |
| CN110329413B (en) * | 2019-08-19 | 2024-02-13 | 宁波兴隆巨创机电科技有限公司 | Connecting mechanism of electric power module and frame module of folding electric vehicle |
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|---|---|---|---|---|
| CN2516443Y (en) * | 2002-01-08 | 2002-10-16 | 张东辉 | Folding handlebar of two-riding postures of bicycle |
| CN101804839A (en) * | 2010-04-14 | 2010-08-18 | 无锡东南车辆科技有限公司 | Semi-automatic folding moped |
| CN102407916A (en) * | 2011-10-13 | 2012-04-11 | 无锡东南车辆科技有限公司 | Supporting structure for battery box of foldable electric power-assisted bicycle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2818611B1 (en) * | 2000-12-27 | 2003-04-04 | Henri Bigot | FOLDABLE BICYCLE |
| JP5146879B2 (en) * | 2008-07-04 | 2013-02-20 | ヤマハ発動機株式会社 | Vehicle with assist power |
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2013
- 2013-03-21 CN CN201310090907.7A patent/CN103129688B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2516443Y (en) * | 2002-01-08 | 2002-10-16 | 张东辉 | Folding handlebar of two-riding postures of bicycle |
| CN101804839A (en) * | 2010-04-14 | 2010-08-18 | 无锡东南车辆科技有限公司 | Semi-automatic folding moped |
| CN102407916A (en) * | 2011-10-13 | 2012-04-11 | 无锡东南车辆科技有限公司 | Supporting structure for battery box of foldable electric power-assisted bicycle |
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Effective date of registration: 20170713 Address after: Orchid road 321299 Zhejiang County of Wuyi Province Economic Development Zone No. 8 Lake Street Patentee after: Wuyi rising vehicle Co., Ltd. Address before: 314031 Zhejiang city of Jinhua province Yongkang City Fang Yan Zhen Wen Lou Cun College Road No. 3 Lane 13 Patentee before: Cheng Enguang |