CN104210598B - A kind of folding bicycle - Google Patents
A kind of folding bicycle Download PDFInfo
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- CN104210598B CN104210598B CN201410486220.XA CN201410486220A CN104210598B CN 104210598 B CN104210598 B CN 104210598B CN 201410486220 A CN201410486220 A CN 201410486220A CN 104210598 B CN104210598 B CN 104210598B
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Abstract
The present invention relates to technical field of bicycles, particularly relate to a kind of folding bicycle, it includes girder, tie-beam and front-axle beam, the folding device for driving front-axle beam to fold when girder folds simultaneously it is provided with tie-beam between described tie-beam and front-axle beam, and described pedal folds with sprocket crank and is connected, and on described folding bicycle, it is additionally provided with the folding device for chain folding.This structure of folding bike is compact, good stability, folding time are shorter, fold time chain do not come off, folding convenient and fold after take small volume.
Description
Technical field
The present invention relates to technical field of bicycles, particularly relate to a kind of folding bicycle.
Background technology
The manufacturing and sell the history of upper a century of bicycle, growing along with science and technology, folding bicycle technology is progressively grown up.
nullIn November, 2012, the applicant has applied for that Patent No. " 201220620120.8 " patent name is the patent of invention of " folding bicycle "，The inside describes a kind of folding bicycle，" include girder、Front-wheel、Trailing wheel、Handlebar、Front fork、Medicated cushion、Seat down tube、Slip pipe、Front underbeam and front-axle beam，Described handlebar includes handlebar cross bar and handlebar montant，Described front underbeam one end and front-axle beam are by the first chain connection，Described front fork and handlebar montant are by the second chain connection，Described handlebar montant is fixing with handlebar cross bar to be connected，Described front fork is connected with front-wheel，Described front fork is rotationally connected with front-axle beam，Described medicated cushion is fixed with seat down tube，Described seat down tube is socketed with slip pipe，It also includes the first trailing wheel swing arm、Second trailing wheel swing arm、Front rod、Rear connecting rod and connector，Described front rod one end and the first hinge，The described front rod other end is hinged with connector one end，The described connector other end is hinged with rear connecting rod one end，The described rear connecting rod other end and first trailing wheel swing arm one end are by the 3rd chain connection，The described first trailing wheel swing arm other end is fixing with hind axle to be connected，Described second trailing wheel swing arm one end is fixing with hind axle to be connected，The described second trailing wheel swing arm other end is hinged with girder one end，The described girder other end is hinged with the front underbeam other end，Described connector is fixing with slip pipe to be connected，And described girder is provided with the through hole being slidably matched with slip pipe，Described slip pipe is additionally provided with the limited block for axial limiting slip pipe away from medicated cushion one end.”
But the folding bicycle of this structure has the disadvantages that
One, front rod and rear connecting rod are provided on girder and front underbeam, material is thus formed a similar triangle just put, so because center of gravity is more top, so it is the most unstable when cycling, and the folding bicycle after expansion is so set and seems that structure comparison is loose, and it not the most attractive in appearance；
Need point three steps to fold when two, folding, first handlebar montant is folded；Then will press under seat down tube, it is made to be reduced in slip pipe, then trailing wheel is down turned, now slip pipe also can move down by through hole from girder, and front rod, connector, front rod and girder also can start to fold, after trailing wheel has folded, trailing wheel can offset with slip pipe, and front rod, front underbeam and slip pipe can arranged in parallel and against；The most again by front-wheel upset as the position of trailing wheel overlap, so fold up step more, fold required time longer, fold up comparison inconvenient；
Three, pedal is not well folded, so the horizontal direction volume shared by whole bicycle is the biggest after Zhe Dieing；
Four, it is not provided with chain and folds device, so being easy to fall off phenomenon when chain folds.
Summary of the invention
The technical problem to be solved is: provide that a kind of compact conformation, good stability, folding time are shorter, when folding chain do not come off, folding convenient and take the folding bicycle of small volume after folding.
nullThe technical solution adopted in the present invention is: a kind of folding bicycle，Including girder、Front-wheel、Trailing wheel、Chain、Sprocket wheel、Sprocket crank、Pedal、Handlebar、Front fork、Back vent、Medicated cushion、Seat down tube、Slip pipe、Tie-beam and front-axle beam，Described handlebar includes handlebar cross bar and handlebar montant，Described tie-beam one end is rotationally connected with girder vertical direction，The described tie-beam other end and front-axle beam are by the first chain connection，Described front fork and handlebar montant are by the second chain connection，Described handlebar montant is connected with handlebar cross bar，Described front fork is connected with front-wheel，Described front fork is rotationally connected with front-axle beam，Described back vent is connected with trailing wheel，Described back vent is rotationally connected with girder vertical direction，Described medicated cushion is fixed with seat down tube，Described seat down tube is socketed with slip pipe，Described girder is provided with the first through hole being slidably matched with slip pipe，It also includes back vent support、Lower link、Connector、Universal connection rod、Triangle joint sheet、Fork and connecting plate，Described connector is fixing with slip pipe bottom to be connected，Described back vent support one end is rotationally connected with back vent vertical direction，The described back vent support other end is rotationally connected with connector one end vertical direction，Described lower link one end is rotationally connected with connector other end vertical direction，The described lower link other end is rotationally connected with tie-beam vertical direction，Described fork one end is rotationally connected away from pedal side horizontal direction with tie-beam，The described fork other end is rotationally connected with connecting plate one end horizontal direction，The described connecting plate other end is rotationally connected near pedal side horizontal direction with front-axle beam，One end, base of described triangle joint sheet is rotationally connected with connecting plate one end horizontal direction，Described triangle joint sheet drift angle one end is rotationally connected with Universal linking lever one end vertical direction，The described Universal linking lever other end is rotationally connected with lower link by universal ball end，And described pedal folds with sprocket crank and is connected，And on described folding bicycle, it is additionally provided with the folding device folded for chain.
Use above structure compared with prior art, the invention have the advantages that and the back vent support that can fold and lower link are arranged on girder and tie-beam bottom, and a similar triangle put upside down is defined with girder and tie-beam, so center of gravity is relatively low, i.e. more steady during cycling, it is not easy overturning, and after launching, structure comparison is compact；And at tie-beam, between lower link and front-axle beam, it is provided with fork, universal connection rod and fixed plate, front-axle beam can be driven also to be folded when fork support and lower link the most after folding simultaneously simultaneously, i.e. when slip pipe, back vent support, lower link are fully folded, front-axle beam has been completely folded, so can effectively reduce folding step, and then decrease folding time, accelerate folding efficiency；And pedal folds with sprocket crank and is connected, so pedal can also be folded up after major part is folded, and then volume shared by whole bicycle after reducing folding, the width that after especially greatly reducing folding, whole water bicycle square upwards takies；And it being provided with the folding device folded for chain, when so being folded by bicycle, chain is just not easy to come off.
As preferably, described pedal folds to be connected with sprocket crank and refers to, it also includes pedal shaft, spring and spring(-supported) mount, described spring(-supported) mount is set on pedal shaft, and described spring(-supported) mount is rotationally connected away from sprocket wheel one end with sprocket crank, described pedal shaft is provided with a circle spacing preiection, described spring housing is located on pedal shaft, and described spring one end is against on spring(-supported) mount, the described spring other end is against on spacing preiection, described pedal shaft one end and pedal are rotationally connected and axial limiting, described sprocket crank is provided with one for the first spacing hole embedding location for the pedal shaft other end away from sprocket wheel one end horizontal direction, described sprocket crank also is provided with one for the second spacing hole embedding location for the pedal shaft other end away from sprocket wheel one end vertical direction.It is the simplest that the folding of this structure connects not only structure, and use the most very convenient, have only to pull out pedal, the pedal shaft other end is extracted from the first spacing hole the most simultaneously, then pedal is rotated, make to rotate between spring(-supported) mount and sprocket crank, and then the other end of pedal shaft is embedded in the second spacing hole, reach the effect of preferable folding, car load horizontal level after i.e. having folded can reduce the length of two pedals, bicycle after so can greatly reducing folding take volume, bicycle after folding can be placed in the space that more horizontal width is less.
As preferably, it is additionally provided with the folding device folded for chain on described folding bicycle to refer to, it also includes tension pulley support and regulating wheel swing arm, described tension pulley support is fixing with back vent to be connected, described regulating wheel swing arm one end is rotationally connected with tension pulley support vertical direction, the described regulating wheel swing arm other end is provided with first regulating wheel, and described first regulating wheel engages with chain, and is provided with one between described tension pulley support and regulating wheel swing arm for the torsion spring driving regulating wheel swing arm down to press.When normally using, torsion spring can drive and press under regulating wheel swing arm, and then driving the first regulating wheel to press against chain always so that chain is tight, and such bicycle can normally use, when needs fold, torsion spring still can drive regulating wheel swing arm down to press, and then drive the first regulating wheel to press against chain always, i.e. makes chain always be in tensioning state, so would not come off when folding so that folding effect is more preferable.
As preferably, described regulating wheel swing arm one end is additionally provided with second regulating wheel engaged with chain, and described first regulating wheel is in chain upper end, and the second regulating wheel is in chain lower end.So arranging and be possible to prevent regulating wheel swing arm one end directly and chain contact, and make chain tension by upper and lower two regulating wheels, such tension effects is more preferable, and when i.e. folding, chain more will not come off from bicycle.
As preferably, described first hinge be provided with one for the snap close locking connecting plate and front-axle beam, described tie-beam is provided with the projection for snap close locking near pedal side, and is additionally provided with on described connecting plate and the breach of described snap close matching form.By snap close is clasped projection, so can well lock front-axle beam and tie-beam, both are made to be not easy separately, this ensures that there the phenomenon that front-axle beam and tie-beam will not be occurred to get loose when cycling, and breach is set on connecting plate, can be in very well in breach when so snap close clasps projection so that do not have protruding existence.
As preferably, described back vent support and lower link are two parts, two parts back vent support is connected to connector and back vent both sides, under two parts, link is connected to connector and tie-beam two lower connecting rod side, and is equipped with reinforcement between link under two parts back vent support and two parts.Back vent support and lower link are arranged to two parts, and be connected to connector and back vent both sides and connector and tie-beam both sides, and strengthened by reinforcement, so when folding, back vent, tie-beam and connector will not be one side stress, and force ratio is more uniform；And intensity is the highest after adding reinforcement, it is not easy to damage deformation.
As preferably, described girder is to be additionally provided with one piece in triangular structure, and described girder for preventing tie-beam to be rotated up the baffle plate that angle is excessive.Girder is arranged to triangular structure, thus further enhancing the structural strength of car load, and one piece of baffle plate is set on girder, so just turn when tie-beam is rotated up forwarding to be close to baffle plate and do not pass by so can effectively prevent tie-beam from rotating excessive and damaging other connection members.
As preferably, being provided with a sleeve pipe slided for slip pipe in described girder, described sleeve pipe one end connects with the first through hole, and the described sleeve pipe other end is arranged on girder bottom, and described set tube wall both sides are all connected fixing with girder.A piece sleeve pipe is set, so slip pipe can be played good guide effect, and be connected by set tube wall both sides and girder are fixing, the intensity of girder can well be strengthened, main beam deformation when preventing use or folding bicycle.
As preferably, described folding bicycle position of centre of gravity is provided with one and conveniently mentions and the handle of folding bicycle.Arranging a handle at folding bicycle position of centre of gravity, such user has only to catch handle to mention, and the snap close bicycle that then comes loose just can fold automatically, it is not necessary to user goes firmly, so folds up very convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of folding bicycle of the present invention.
Fig. 2 is the left view of the present invention a kind of folding bicycle original state.
Fig. 3 is the right view of the present invention a kind of folding bicycle original state.
Fig. 4 is the left view after the present invention this handle riser of a kind of folding bicycle folds.
Fig. 5 is the left view after a kind of folding bicycle of the present invention folds a part.
Fig. 6 is the top view after a kind of folding bicycle of the present invention folds a part.
Fig. 7 is the schematic perspective view after a kind of folding bicycle of the present invention folds a part.
Fig. 8 is the left view after a kind of folding bicycle of the present invention folds another part.
Fig. 9 is the top view after a kind of folding bicycle of the present invention folds another part.
Figure 10 is the schematic perspective view after a kind of folding bicycle of the present invention folds another part.
Figure 11 is the left view that a kind of folding bicycle of the present invention has folded.
Figure 12 is the top view that a kind of folding bicycle of the present invention has folded.
Figure 13 is the schematic perspective view that a kind of folding bicycle of the present invention has folded.
Figure 14 is the explosive view of the pedal part of a kind of folding bicycle of the present invention.
Figure 15 is one folding bicycle pedal part original state schematic diagram of the present invention.
Figure 16 is the schematic diagram of the present invention a kind of folding bicycle partially folded part of pedal.
Figure 17 is the present invention partially folded schematic diagram completed of a kind of folding bicycle pedal.
As shown in the figure: 1, girder；2, front-wheel；3, trailing wheel；4, chain；5, sprocket wheel；6, sprocket crank；7, pedal；8, front fork；9, back vent；10, medicated cushion；11, sit down pipe；12, slip pipe；13, tie-beam；14, front-axle beam；15, handlebar cross bar；16, handlebar montant；17, the first hinge；18, the second hinge；19, back vent support；20, lower link；21, connector；22, universal connection rod；23, triangle joint sheet；24, fork；25, connecting plate；26, pedal shaft；27, spring；28, spring(-supported) mount；29, spacing preiection；30, tension pulley support；31, regulating wheel swing arm；32, the first regulating wheel；33, torsion spring；34, the second regulating wheel；35, snap close；36, baffle plate；37, sleeve pipe.
Detailed description of the invention
With detailed description of the invention, the present invention is described further below in conjunction with accompanying drawing, but the present invention is not limited only to detailed description below.
nullAs shown in the figure: a kind of folding bicycle，Including girder 1、Front-wheel 2、Trailing wheel 3、Chain 4、Sprocket wheel 5、Sprocket crank 6、Pedal 7、Handlebar、Front fork 8、Back vent 9、Medicated cushion 10、Seat down tube 11、Slip pipe 12、Tie-beam 13 and front-axle beam 14，Described handlebar includes handlebar cross bar 15 and handlebar montant 16，Described tie-beam 13 one end is rotationally connected with girder 1 vertical direction，Described tie-beam 13 other end is connected by the first hinge 17 with front-axle beam 14，Described front fork 8 is connected by the second hinge 18 with handlebar montant 16，Described handlebar montant 16 is connected with handlebar cross bar 15，Described front fork 8 is connected with front-wheel 2，Described front fork 2 is rotationally connected with front-axle beam 14，Described back vent 9 is connected with trailing wheel 3，Described back vent 9 is rotationally connected with girder 1 vertical direction，Described medicated cushion 10 is fixed with seat down tube 11，Described seat down tube 11 is socketed with slip pipe 12，Described girder 1 is provided with the first through hole being slidably matched with slip pipe 12，It also includes back vent support 19、Lower link 20、Connector 21、Universal connection rod 22、Triangle joint sheet 23、Fork 24 and connecting plate 25，Described connector 21 is fixing with slip pipe 12 bottom to be connected，Described back vent support 19 one end is rotationally connected with back vent 9 vertical direction，Described back vent support 19 other end is rotationally connected with connector 21 one end vertical direction，Described lower link 20 one end is rotationally connected with connector 21 other end vertical direction，Described lower link 20 other end is rotationally connected with tie-beam 13 vertical direction，Described fork 24 one end is rotationally connected away from pedal 7 side horizontal direction with tie-beam 13，Described fork 24 other end is rotationally connected with connecting plate 25 one end horizontal direction，Described connecting plate 25 other end is rotationally connected near pedal 7 side horizontal direction with front-axle beam 14，One end, base of described triangle joint sheet 23 is rotationally connected with connecting plate 25 one end horizontal direction，Described triangle joint sheet 23 drift angle one end is rotationally connected with Universal linking lever 22 one end vertical direction，Described Universal linking lever 22 other end is rotationally connected with lower link 20 by universal ball end，And described pedal 7 folds with sprocket crank 6 and is connected，And on described folding bicycle, it is additionally provided with the folding device folded for chain 5.The first hinge 17 between described tie-beam 13 and front-axle beam 14 is hinged on away from pedal 7 side, connecting plate 25 and front-axle beam 14 are rotationally connected and are attached to front-axle beam 14 near pedal 7 side, snap close 35 is also rotatably connected on this position, and tie-beam 13 this position being rotationally connected corresponding is provided with a depression coordinated with it, fork 24 entirety is in the top of tie-beam 13, when being in normal riding condition, connecting plate 25 is close to tie-beam 13 near pedal 7 side, front-axle beam 14 contacts with tie-beam 13, after folding completes, connecting plate 25 be positioned against before on two faces contacting with tie-beam 13 of front-axle beam 14.
nullDescribed pedal 7 folds to be connected with sprocket crank 6 and refers to，It also includes pedal shaft 26、Spring 27 and spring(-supported) mount 28，Described spring(-supported) mount 28 is set on pedal shaft 26，And described spring(-supported) mount 28 is rotationally connected away from sprocket wheel 5 one end with sprocket crank 6，Described pedal shaft 26 is provided with a circle spacing preiection 29，Described spring 27 is set on pedal shaft 26，And described spring 27 one end is against on spring(-supported) mount 28，Described spring 27 other end is against on spacing preiection 29，Described pedal shaft 26 one end and pedal 7 are rotationally connected and axial limiting，Described sprocket crank 6 is provided with one for the first spacing hole embedding location for pedal shaft 26 other end away from sprocket wheel 5 one end horizontal direction，Described sprocket crank 6 also is provided with one for the second spacing hole embedding location for pedal shaft 26 other end away from sprocket wheel 5 one end vertical direction.And described sprocket crank 6 away from be additionally provided with on sprocket wheel 5 one end one for the fixing plane of pedal shaft 26 other end, even if so not having the second spacing hole, pedal shaft 26 can also be positioned at sprocket crank 6 away from sprocket wheel 5 one end.
It is additionally provided with the folding device folded for chain 5 on described folding bicycle to refer to, it also includes tension pulley support 30 and regulating wheel swing arm 31, described tension pulley support 30 is fixing with back vent 9 to be connected, described regulating wheel swing arm 31 one end is rotationally connected with tension pulley support 30 vertical direction, described regulating wheel swing arm 31 other end is provided with first regulating wheel 32, described first regulating wheel 32 engages with chain 4, and is provided with one between described tension pulley support 30 and regulating wheel swing arm 31 for the torsion spring 33 driving regulating wheel swing arm 31 down to press.Chain 4 can loosen when folding, now because torsion spring 33 is exerting a force to regulating wheel swing arm 31 always, make regulating wheel swing arm 31 press against chain 4 always, so chain 4 is tensioning always, and because regulating wheel swing arm 31 is directly not contact with chain 4, but come and chain contact by two regulating wheels, do not interfere with the proper motion of chain 4 the most yet.
Described regulating wheel swing arm 31 one end is additionally provided with second regulating wheel 34 engaged with chain 5, and described first regulating wheel 32 is in chain 4 upper end, and the second regulating wheel 34 is in chain 4 lower end.
Described first hinge 17 be provided with one for the snap close 35 locking connecting plate 25 and front-axle beam 14, described tie-beam 13 is provided with the projection for snap close 35 locking near pedal 7 side, and is additionally provided with on described connecting plate 25 and the breach of described snap close 35 matching form.
Described back vent support 19 and lower link 20 are two parts, two parts back vent support 19 is connected to connector 21 and back vent 9 both sides, under two parts, link 20 is connected to connector 19 and tie-beam 13 both sides, and is equipped with reinforcement between link 20 under two parts back vent support 19 and two parts.
Described girder 1 is to be additionally provided with one piece in triangular structure, and described girder 1 for preventing tie-beam 13 to be rotated up the excessive baffle plate of angle 36.Girder is also mainly also made up of three parts, two class triangular support plates on both sides, top is that one piece of connecting plate is by fixing for two class triangular support plates connections, and three is integrated, baffle plate 36 is exactly a part for connecting plate, first through hole is provided on connecting plate, and sleeve pipe 37 tube wall both sides are welded and fixed with two blocks of class triangular support plates
Being provided with a sleeve pipe 37 slided for slip pipe 12 in described girder 1, described sleeve pipe 37 one end connects with the first through hole, and described sleeve pipe 37 other end is arranged on girder 1 bottom, and described sleeve pipe 37 tube wall both sides are all connected fixing with girder 1.Described sleeve pipe 37 is welded and fixed with girder 1.
It is provided with one on described folding bicycle position of centre of gravity conveniently to mention and the handle of folding bicycle.Described position of centre of gravity is on girder 1 or tie-beam 13.
The folding principle of folding bicycle of the present invention is: first folded by the second hinge 18 between handlebar montant 16 and front fork 8, pipe of sitting down is pressed for 11 times, it is made to be reduced in slip pipe 12, then pedal position is folded up, the most first pedal 7 level is pulled out, then it is inserted vertically into after rotating, then snap close 35 is opened, then the handle being arranged on bicycle center of gravity is mentioned, so bicycle also can and then be brought up, and now slip pipe 12 down can slide along sleeve pipe 37, band follower link 22 down slides, lower connector 20 and back vent support 19 is driven to move down, tie-beam 13 is driven to draw close toward centre with back vent 9 again, last trailing wheel 3 and tie-beam 13 can complete to fold, trailing wheel 3 is offseted with slip pipe 12, tie-beam 13 offsets with slip pipe 12；And universal connection rod 22 can be driven to move with link 20 at present, and then drive fork 24 and connecting plate 25 to rotate, and connecting plate 25 can drive front-axle beam 14 to rotate, finally can reach front-axle beam 14 and tie-beam 13 parallel folds, just have only to mention handle and open snap close 35, the folding bicycle of the application can be automatically performed major part folding process under gravity, if it can also the most manually be folded complete either with or without the part folded completely, user by centre.As shown in figure 13, now the area shared by bicycle is only slightly bigger than a trailing wheel 2, greatly reduces area occupied.
Claims (9)
- null1. a folding bicycle，Including girder (1)、Front-wheel (2)、Trailing wheel (3)、Chain (4)、Sprocket wheel (5)、Sprocket crank (6)、Pedal (7)、Handlebar、Front fork (8)、Back vent (9)、Medicated cushion (10)、Seat down tube (11)、Slip pipe (12)、Tie-beam (13) and front-axle beam (14)，Described handlebar includes handlebar cross bar (15) and handlebar montant (16)，Described tie-beam (13) one end is rotationally connected with girder (1) vertical direction，Described tie-beam (13) other end is connected by the first hinge (17) with front-axle beam (14)，Described front fork (8) is connected by the second hinge (18) with handlebar montant (16)，Described handlebar montant (16) is connected with handlebar cross bar (15)，Described front fork (8) is connected with front-wheel (2)，Described front fork (8) is rotationally connected with front-axle beam (14)，Described back vent (9) is connected with trailing wheel (3)，Described back vent (9) is rotationally connected with girder (1) vertical direction，Described medicated cushion (10) is fixed with seat down tube (11)，Described seat down tube (11) is socketed with slip pipe (12)，Described girder (1) is provided with the first through hole being slidably matched with slip pipe (12)，It is characterized in that: it also includes back vent support (19)、Lower link (20)、Connector (21)、Universal connection rod (22)、Triangle joint sheet (23)、Fork (24) and connecting plate (25)，Described connector (21) is fixing with slip pipe (12) bottom to be connected，Described back vent support (19) one end is rotationally connected with back vent (9) vertical direction，Described back vent support (19) other end is rotationally connected with connector (21) one end vertical direction，Described lower link (20) one end is rotationally connected with connector (21) other end vertical direction，Described lower link (20) other end is rotationally connected with tie-beam (13) vertical direction，Described fork (24) one end is rotationally connected away from pedal (7) side horizontal direction with tie-beam (13)，Described fork (24) other end is rotationally connected with connecting plate (25) one end horizontal direction，Described connecting plate (25) other end is rotationally connected near pedal (7) side horizontal direction with front-axle beam (14)，One end, base of described triangle joint sheet (23) is rotationally connected with connecting plate (25) one end horizontal direction，Described triangle joint sheet (23) drift angle one end is rotationally connected with universal connection rod (22) one end vertical direction，Described universal connection rod (22) other end is rotationally connected with lower link (20) by universal ball end，And described pedal (7) folds with sprocket crank (6) and is connected，And on described folding bicycle, it is additionally provided with the folding device folded for chain (4).
- nullA kind of folding bicycle the most according to claim 1，It is characterized in that: described pedal (7) folds to be connected with sprocket crank (6) and refers to，It also includes pedal shaft (26)、Spring (27) and spring(-supported) mount (28)，Described spring(-supported) mount (28) is set on pedal shaft (26)，And described spring(-supported) mount (28) is rotationally connected away from sprocket wheel (5) one end with sprocket crank (6)，Described pedal shaft (26) is provided with a circle spacing preiection (29)，Described spring (27) is set on pedal shaft (26)，And described spring (27) one end is against on spring(-supported) mount (28)，Described spring (27) other end is against on spacing preiection (29)，Described pedal shaft (26) one end and pedal (7) are rotationally connected and axial limiting，Described sprocket crank (6) is provided with one for the first spacing hole embedding location for pedal shaft (26) other end away from sprocket wheel (5) one end horizontal direction，Described sprocket crank (6) also is provided with one for the second spacing hole embedding location for pedal shaft (26) other end away from sprocket wheel (5) one end vertical direction.
- A kind of folding bicycle the most according to claim 1, it is characterized in that: be additionally provided with the folding device folded for chain (4) on described folding bicycle and refer to, it also includes tension pulley support (30) and regulating wheel swing arm (31), described tension pulley support (30) is fixing with back vent (9) to be connected, described regulating wheel swing arm (31) one end is rotationally connected with tension pulley support (30) vertical direction, described regulating wheel swing arm (31) other end is provided with first regulating wheel (32), described first regulating wheel (32) is engaged with chain (4), and it is provided with one for the torsion spring (33) driving regulating wheel swing arm (31) down to press between described tension pulley support (30) and regulating wheel swing arm (31).
- A kind of folding bicycle the most according to claim 3, it is characterized in that: described regulating wheel swing arm (31) one end is additionally provided with second regulating wheel (34) engaged with chain (4), and described first regulating wheel (32) is in chain (4) upper end, the second regulating wheel (34) is in chain (4) lower end.
- A kind of folding bicycle the most according to claim 1, it is characterized in that: described first hinge (17) is provided with one for the snap close (35) locking connecting plate (25) and front-axle beam (14), described tie-beam (13) is provided with the projection locked for snap close (35) near pedal (7) side, and is additionally provided with on described connecting plate (25) and the breach of described snap close (35) matching form.
- A kind of folding bicycle the most according to claim 1, it is characterized in that: described back vent support (19) and lower link (20) are two parts, two parts back vent support (19) are connected to connector (21) and back vent (9) both sides, under two parts, link (20) is connected to connector (21) and tie-beam (13) both sides, and is equipped with reinforcement between link (20) under two parts back vent support (19) and two parts.
- A kind of folding bicycle the most according to claim 1, it is characterized in that: described girder (1) is triangular structure, and be additionally provided with one piece on described girder (1) for preventing tie-beam (13) to be rotated up the excessive baffle plate of angle (36).
- A kind of folding bicycle the most according to claim 1, it is characterized in that: in described girder (1), be provided with a sleeve pipe (37) slided for slip pipe (12), described sleeve pipe (37) one end connects with the first through hole, described sleeve pipe (37) other end is arranged on girder (1) bottom, and described sleeve pipe (37) tube wall both sides are all connected fixing with girder (1).
- A kind of folding bicycle the most according to claim 1, it is characterised in that: described folding bicycle position of centre of gravity is provided with one and conveniently mentions and the handle of folding bicycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486220.XA CN104210598B (en) | 2014-09-23 | 2014-09-23 | A kind of folding bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486220.XA CN104210598B (en) | 2014-09-23 | 2014-09-23 | A kind of folding bicycle |
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| Publication Number | Publication Date |
|---|---|
| CN104210598A CN104210598A (en) | 2014-12-17 |
| CN104210598B true CN104210598B (en) | 2016-08-24 |
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| CN201410486220.XA Active CN104210598B (en) | 2014-09-23 | 2014-09-23 | A kind of folding bicycle |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK3587231T3 (en) | 2017-02-24 | 2022-01-24 | Aruana Energia S/A | IMPROVEMENTS OF AN ELLIPTIC FOLDABLE BIKE |
| CN110104108B (en) * | 2019-04-04 | 2021-03-09 | 宁波新骑科技有限公司 | Folding bicycle |
| CN112693548B (en) * | 2019-10-23 | 2022-09-09 | 威达电子有限公司 | Foldable bicycle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITCT20070019A1 (en) * | 2007-09-12 | 2009-03-13 | Blasi Ind Srl Di | FOLDABLE FRAME FOR TWO OR MORE WHEELED VEHICLES |
| CN202464036U (en) * | 2011-12-20 | 2012-10-03 | 大行科技(深圳)有限公司 | Longitudinally folded bicycle |
| CN103569276B (en) * | 2012-08-03 | 2016-04-27 | 苏州杰翔电动车有限公司 | A kind of fast folding battery-driven car or cycle frame |
| CN203332308U (en) * | 2013-06-21 | 2013-12-11 | 苏州龙跃锂动车辆有限公司 | Electric bicycle |
| CN204056145U (en) * | 2014-09-23 | 2014-12-31 | 陈文朗 | A kind of folding bicycle |
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