CN109795605A - A kind of crank device of electric bicycle - Google Patents
A kind of crank device of electric bicycle Download PDFInfo
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- CN109795605A CN109795605A CN201910194382.9A CN201910194382A CN109795605A CN 109795605 A CN109795605 A CN 109795605A CN 201910194382 A CN201910194382 A CN 201910194382A CN 109795605 A CN109795605 A CN 109795605A
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- crank
- axis
- fixed part
- driving section
- electric bicycle
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Abstract
The invention discloses a kind of crank devices of electric bicycle, including axle sleeve, axis, chain wheel, right crank and left crank, the central axis is connected to inside axle sleeve, the both ends of axis are driving section and are equipped with threaded hole, right crank is pinned at driving section and is fixedly connected on driving section by fastener, chain wheel is fixedly connected on right crank, further includes fixed part and connector, and fixed part is set on left crank driving section；The left crank is rotating part close to one end of axis and the end is equipped with through-hole, and left crank is connected in fixed part by rotating part bumps, and left crank is fixedly connected on fixed part by connector；The left crank and right crank be centrosymmetric with the central point of axis or the left crank and right crank with the longitudinal centre line of axis axisymmetricly.In the use of the present invention, side crank assembly direction can be switched fast, the time that easily solves the problems, such as to ride has grown two legs and feet of feeling like a hen on a hot girdle.
Description
Technical field
The present invention relates to electric bicycle technical field more particularly to a kind of crank devices of electric bicycle.
Background technique
Electric bicycle refers to using battery as supplementary energy on the basis of ordinary bicycle, is mounted with motor, control
The Personal Transporter of the electromechanical integration of the control members such as device processed, battery, handle brake lever and display instrument system.
Electric vehicle currently on the market is many kinds of, and most of electric vehicles are because volume is big, weight is big, speed causes fastly
The disadvantages of traffic accident takes place frequently, and many electric vehicles can not just ride after losing electric boosted function, this gives traveler band
Carry out some potential safety problems.New electric bicycle standard has been put into effect according to various shortcoming country existing for existing electric vehicle
GB17761-2018, one of them be exactly electric bicycle allow for manpower ride function (must ride in half an hour 5 public affairs
In), in order to meet new standard, electric vehicle enterprise, which only has, remanufactures the qualified electric vehicle of production to share electric vehicle market
The big cake of this block, many light electric bicycles are just born in this case.
However it is this it is light it is foldable can with four-wheel car carry electric bicycle lack electric riding again when put
The fixed pedestal of foot, two feet of people be only placed on crank it is foot-operated on, the low foot of a foot is high or two legs half it is bent one
After previous, slightly long point of such riding posture time just may feel that very uncomfortable.
Therefore, it is necessary to solve the above problems to invent a kind of crank device of electric bicycle.
Summary of the invention
The purpose of the present invention is to provide a kind of crank device of electric bicycle, which can be switched fast crank dress
With direction, two cranks are centrosymmetric just as normal bicycle crank when power-assisted is ridden, two songs when pure electric vehicle is ridden
Handle is axisymmetricly two foot-operated all in lowest part, and the both feet of such cyclist can be comfortably placed on foot-operated very much, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of crank device of electric bicycle, including axle sleeve, axis, chain wheel, right crank and left crank, the axis turn
Dynamic to be connected to inside axle sleeve, the both ends of axis are driving section and are equipped with threaded hole, and right crank is pinned at driving section and by tight
Firmware is fixedly connected on driving section, and chain wheel is fixedly connected on right crank, further includes fixed part and connector, and fixed part is set to
On left crank driving section；The left crank is rotating part close to one end of axis and the end is equipped with through-hole, left crank
Fixed part is connected in by rotating part bumps, and left crank is fixedly connected on fixed part by connector；The left crank
It is centrosymmetric with right crank with the central point of axis or the left crank and right crank is with the longitudinal center of axis
Line is axisymmetricly.
Further improvement of the present invention scheme is, the driving section is square shaft, the middle part of annular fixed part be equipped with it is different
The square hole of shape axis adaptation, fixed part are sheathed on the outer wall of driving section and are fixedly connected on driving section, symmetrical on the outside of fixed part
Set there are four convex block, and four convex blocks respectively correspond four faces of driving section.
Further improvement of the present invention scheme is that the rotating part is equipped with groove corresponding with four convex blocks, and left side is bent
The convex block that handle is staggeredly click-on connected on fixed part by the groove on rotating part.
Further improvement of the present invention scheme is that the connector is the screw rod with block, and screw rod passes through through-hole and spiral shell
Threaded hole is connected to so that rotating part is fixedly connected on fixed part.
Further improvement of the present invention scheme is that the external dimensions of the block is greater than the internal diameter of through-hole.
Further improvement of the present invention scheme is, the fixed part face opposite with rotating part be equipped with the boss of adaptation with
Concave station.
Further improvement of the present invention scheme be further include the fast disassembling handlebar for being articulated with block.
Further improvement of the present invention scheme be further include being sheathed between block and rotating part lock pad on screw rod, fastly
Tearing handle and block connecting pin open is eccentric body, and the bearing surface of lock pad and fast disassembling handlebar is cancave cambered surface, fast disassembling handlebar rotate so that
Eccentric body squeezes lock pad.
Further improvement of the present invention scheme is that the lock pad recess is set to the outer surface of rotating part.
Further improvement of the present invention scheme is that the left crank and right crank are rotatablely connected far from the end of axis
Have foot-operated.
Beneficial effects of the present invention:
One, in the use of the present invention, crank assembly direction can be switched fast, two cranks are just as normally voluntarily when power-assisted is ridden
Vehicle crank is equally centrosymmetric, and two cranks axisymmetricly i.e. two are ridden all in lowest part when pure electric vehicle is ridden, and cycles in this way
The both feet of person can be comfortably placed on foot-operated very much.
Two, the fixed part of the present invention face opposite with rotating part is equipped with the boss and concave station of adaptation, and boss is initially inserted into recessed
In platform, such rotating part can be rotated along fixed part, facilitate docking for groove and convex block；In addition, the setting of boss also guarantees
Fixed part cover the length on axis increase and it is safer.
Three, the present invention has installed fast disassembling handlebar additional in the end of connector, thus when disassembly or installation connecting element, more
What is added is convenient and strength-saving.
Four, the present invention is also sheathed on lock pad, fast disassembling handlebar and block connecting pin between block and rotating part on screw rod
For eccentric body, when rotating fast disassembling handlebar, eccentric body can compress left crank, so that rotating part and fixed part fitting is more firm
Gu promoting the security performance of the crank device.
Five, lock pad of the invention recess is set to the outer surface of rotating part, lock pad can be made quickly to position in this way, convenient
The fast assembling-disassembling of left crank.
Detailed description of the invention
Fig. 1 is two crank position relation schematic diagrams when power-assisted of the present invention is ridden.
Fig. 2 is left crank exploded view of the invention.
Fig. 3 is left crank scheme of installation of the invention.
Fig. 4 be Fig. 2 in fixed part A to structural schematic diagram.
Two crank position relation schematic diagrams when Fig. 5 is pure motor driving of the present invention.
In figure: 1- axle sleeve, 2- axis, 3- chain wheel, 4- right crank, 5- left crank, 6- threaded hole, 7- fixed part, 8-
Connector, 9- rotating part, 10- through-hole, 11- convex block, 12- groove, 13- boss, 14- concave station, 15- fast disassembling handlebar, 16- locking
Pad, 17- eccentric body, 18- be foot-operated, the driving section 19-.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that following specific embodiments are only used for
Illustrate the present invention rather than limit the scope of the invention, after the present invention has been read, those skilled in the art are to invention
The modification of various equivalent forms falls within the application range as defined in the appended claims.
Embodiment 1: as shown in Figs. 1-5, a kind of crank device of electric bicycle, including axle sleeve 1, axis 2, chain wheel 3, the right side
Lateral curvature handle 4 and left crank 5, the axis 2 are rotationally connected with inside axle sleeve 1 by bearing, and the both ends of axis 2 are driving section 19
And it is equipped with threaded hole 6, right crank 4 is pinned at driving section 19 and is fixedly connected on driving section 19 by fastener, and chain wheel 3 passes through
Bolt is fixedly connected or is welded on right crank 4, further includes fixed part 7 and connector 8, and fixed part 7 is passed set on left crank 5
In dynamic portion 19；The left crank 5 is rotating part 9 close to one end of axis 2 and the end is equipped with through-hole 10, and left crank 5 is logical
It crosses 9 bumps of rotating part and is connected in fixed part 7, and left crank 5 is fixedly connected on fixed part 7 by connector 8；The left side is bent
Handle 5 is centrosymmetric with right crank 4 with the central point of axis 2 or the left crank 5 and right crank 4 are with axis 2
Longitudinal centre line is axisymmetricly.
The driving section 19 is square shaft, and the middle part of annular fixed part 7 is equipped with the square hole being adapted to special-shaped axis, fixed part
7 are sheathed on the outer wall of driving section 19 and are bonded on driving section 19 by metal glue, there are four the outside of fixed part 7 is symmetrically set
Convex block 11, and four convex blocks 11 respectively correspond four faces of driving section 19.
The rotating part 9 is equipped with groove 12 corresponding with four convex blocks 11, and left crank 5 passes through recessed on rotating part 9
The convex block 11 that slot 12 is staggeredly click-on connected on fixed part 7.
The connector 8 is the screw rod with block, and screw rod passes through through-hole 10 and is bolted in threaded hole 6 so that rotating part 9
It is fixedly connected on fixed part 7, and the external dimensions of the block is greater than the internal diameter of through-hole 10.
The fixed part 7 face opposite with rotating part 9 is equipped with the boss 13 and concave station 14 being adapted to.
The left crank 5 and right crank 4 are rotatably connected to foot-operated 18 far from the end of axis 2
The specific working principle is as follows for the present embodiment: when power-assisted is ridden, left crank 5 and right crank 4 are just as normal bicycle
The same central point with axis 2 of crank is centrosymmetric；When pure electric vehicle is ridden, connector 8 is unclamped, left crank 5 is moved out
It is dynamic to be kept completely separate groove 12 and convex block 11, and by the rotation of left crank 5 extremely with right crank 4 with the longitudinal centre line of axis 2
Axisymmetricly, left crank 5, which moves inward, makes groove 12 and convex block 11 staggeredly be connected, finally by connector 8 by left side
Crank 5 is fixedly connected with fixed part 7.
Embodiment 2: the present embodiment and embodiment 1 are different, the difference is that, the needs of connector 8 of embodiment 1 are borrowed
Auxiliary tool is helped to realize its dismounting, when dismounting is more troublesome；And in the present embodiment, it can be to avoid drawbacks described above, specifically
It says:
Further include the fast disassembling handlebar 15 for being articulated with block, in the present embodiment, offers hole on block and fast disassembling handlebar 15, fastly
Handle 15 is torn open to connect by pin shaft with block；Fast disassembling handlebar 15 in the present embodiment, guarantee disassembly or installation connecting element 8 when
It waits, enhanced convenience is laborsaving.
In addition to this, the present embodiment is identical with embodiment 1, does not repeat herein.
Embodiment 3: the present embodiment is the further improvement of embodiment 2, is mainly theed improvement is that, the Quick Release of embodiment 2
One end of handle 15 is free end, and the meeting of fast disassembling handlebar 15 whipping generates noise or influences normally to ride when riding；In addition, left side is bent
It is not also very securely that handle 5 and fixed part 7, which rely solely on the fixation of connector 8,；And in the present embodiment, can to avoid drawbacks described above,
Specifically:
It further include being sheathed between block and rotating part 9 lock pad 16 on screw rod, fast disassembling handlebar 15 and block connecting pin are bias
The bearing surface of body 17, lock pad 16 and fast disassembling handlebar 15 is cancave cambered surface, and fast disassembling handlebar 15 rotates so that eccentric body 17 squeezes locking
Pad 16；The lock pad 16, which is recessed, is set to the outer surface of rotating part 9；In dismantling connection part 8, rotation fast disassembling handlebar 15 makes partially
This end farther away from central point of heart body 17 is detached from from the cancave cambered surface of lock pad 16；After adjusting 5 position of left crank, Quick Release is rotated
Handle 15 makes this end farther away from central point of eccentric body 17 enter cancave cambered surface, and eccentric body 17 squeezes lock pad 16, and lock pad 16 is pressed
Tight left crank 5 promotes the security performance of the crank device so that rotating part 9 and fixed part 7 are bonded stronger；Furthermore
In the locked condition, fast disassembling handlebar 15 should be tightly attached on left crank 5.
In addition to this, the present embodiment is identical with embodiment 2, does not repeat herein.
Claims (10)
1. a kind of crank device of electric bicycle, including axle sleeve (1), axis (2), chain wheel (3), right crank (4) and left side
Crank (5), the axis (2) are rotationally connected with axle sleeve (1) inside, and the both ends of axis (2) are driving section (19) and are equipped with screw thread
Hole (6), right crank (4) are pinned at driving section (19) and are fixedly connected on driving section (19) by fastener, and chain wheel (3) is fixed
It is connected on right crank (4), it is characterised in that: further include fixed part (7) and connector (8), it is bent that fixed part (7) is set to left side
On handle (5) driving section (19)；The left crank (5) is rotating part (9) close to one end of axis (2) and the end is equipped with through-hole
(10), left crank (5) is connected in fixed part (7) by rotating part (9) bumps, and left crank (5) is solid by connector (8)
Surely fixed part (7) are connected to；The left crank (5) is centrosymmetric with right crank (4) with the central point of axis (2), or
Left crank described in person (5) and right crank (4) with the longitudinal centre line of axis (2) axisymmetricly.
2. a kind of crank device of electric bicycle as described in claim 1, it is characterised in that: the driving section (19) is side
Shape axis, the middle part of annular fixed part (7) are equipped with the square hole being adapted to special-shaped axis, and fixed part (7) is sheathed on driving section (19)
Outer wall is simultaneously fixedly connected on driving section (19), symmetrically sets that there are four convex block (11), and four convex blocks on the outside of fixed part (7)
(11) four faces of driving section (19) are respectively corresponded.
3. a kind of crank device of electric bicycle as claimed in claim 2, it is characterised in that: set on the rotating part (9)
There is groove (12) corresponding with four convex block (11), staggeredly occlusion connects left crank (5) by the groove (12) on rotating part (9)
The convex block (11) being connected on fixed part (7).
4. a kind of crank device of electric bicycle as claimed in claim 3, it is characterised in that: the connector (8) is band
There is the screw rod of block, screw rod passes through through-hole (10) and is bolted in threaded hole (6) so that rotating part (9) is fixedly connected on fixed part
(7).
5. a kind of crank device of electric bicycle as claimed in claim 4, it is characterised in that: the external dimensions of the block
Greater than the internal diameter of through-hole (10).
6. a kind of crank device of electric bicycle as claimed in claim 5, it is characterised in that: the fixed part (7) and rotation
The opposite face in transfer part (9) is equipped with boss (13) and concave station (14) of adaptation.
7. a kind of crank device of electric bicycle as claimed in claim 6, it is characterised in that: further include being articulated with block
Fast disassembling handlebar (15).
8. a kind of crank device of electric bicycle as claimed in claim 7, it is characterised in that: further include be sheathed on block with
Lock pad (16) on screw rod between rotating part (9), fast disassembling handlebar (15) and block connecting pin are eccentric body (17), lock pad (16)
Bearing surface with fast disassembling handlebar (15) is cancave cambered surface, and fast disassembling handlebar (15) rotates so that eccentric body (17) squeezes lock pad (16).
9. a kind of crank device of electric bicycle as claimed in claim 8, it is characterised in that: lock pad (16) recess
It is set to the outer surface of rotating part (9).
10. a kind of crank device of electric bicycle as described in any one of claim 2-9, it is characterised in that: the left side
The end of lateral curvature handle (5) and right crank (4) separate axis (2) is rotatably connected to foot-operated (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194382.9A CN109795605B (en) | 2019-03-14 | 2019-03-14 | Crank device of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194382.9A CN109795605B (en) | 2019-03-14 | 2019-03-14 | Crank device of electric bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109795605A true CN109795605A (en) | 2019-05-24 |
| CN109795605B CN109795605B (en) | 2023-08-18 |
Family
ID=66562980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910194382.9A Active CN109795605B (en) | 2019-03-14 | 2019-03-14 | Crank device of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109795605B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530948A (en) * | 2021-08-05 | 2021-10-22 | 上海巴朗科技有限公司 | Quick change mechanism with anti-loosening eccentric crank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201941929U (en) * | 2011-01-26 | 2011-08-24 | 淮阴工学院 | Electric bicycle crank with adjustable angle |
| CN104029781A (en) * | 2013-03-08 | 2014-09-10 | 张胜祥 | Novel crank sprocket support |
| CN204184540U (en) * | 2014-09-04 | 2015-03-04 | 上海创骋工业设计有限公司 | A kind of middle axle gearing device for electric driven bicycle |
| KR20150108285A (en) * | 2014-03-17 | 2015-09-25 | 선 규 이 | Have a foot shaft crank to bicycle |
| CN209889048U (en) * | 2019-03-14 | 2020-01-03 | 江苏爱特福股份有限公司 | Crank device of electric bicycle |
-
2019
- 2019-03-14 CN CN201910194382.9A patent/CN109795605B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201941929U (en) * | 2011-01-26 | 2011-08-24 | 淮阴工学院 | Electric bicycle crank with adjustable angle |
| CN104029781A (en) * | 2013-03-08 | 2014-09-10 | 张胜祥 | Novel crank sprocket support |
| KR20150108285A (en) * | 2014-03-17 | 2015-09-25 | 선 규 이 | Have a foot shaft crank to bicycle |
| CN204184540U (en) * | 2014-09-04 | 2015-03-04 | 上海创骋工业设计有限公司 | A kind of middle axle gearing device for electric driven bicycle |
| CN209889048U (en) * | 2019-03-14 | 2020-01-03 | 江苏爱特福股份有限公司 | Crank device of electric bicycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530948A (en) * | 2021-08-05 | 2021-10-22 | 上海巴朗科技有限公司 | Quick change mechanism with anti-loosening eccentric crank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109795605B (en) | 2023-08-18 |
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