CN204056145U - A kind of folding bicycle - Google Patents
A kind of folding bicycle Download PDFInfo
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- CN204056145U CN204056145U CN201420545321.5U CN201420545321U CN204056145U CN 204056145 U CN204056145 U CN 204056145U CN 201420545321 U CN201420545321 U CN 201420545321U CN 204056145 U CN204056145 U CN 204056145U
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- folding
- rotationally connected
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Abstract
The utility model relates to technical field of bicycles, particularly relate to a kind of folding bicycle, it comprises girder, tie-beam and front-axle beam, the folding device for driving front-axle beam folding when girder and tie-beam fold simultaneously is provided with between described tie-beam and front-axle beam, and described stretcher is connected with sprocket crank is folding, and described folding bicycle is also provided with for the folding folding device of chain.This structure of folding bike is compact, good stability, folding time are shorter, folding time chain can not come off, folding convenient and folding after take small volume.
Description
Technical field
The utility model relates to technical field of bicycles, particularly relates to a kind of folding bicycle.
Background technology
The manufacture of bicycle with sell the history that there is upper a century, growing along with science and technology, folding bicycle technology is progressively grown up.
The applicant has applied for the patent No. utility model patent that to be " 201220620120.8 " patent name be " folding bicycle " in November, 2012, the inside describes a kind of folding bicycle, " comprise girder, front-wheel, trailing wheel, handlebar, front fork, cushion, the lower pipe of seat, slip pipe, front underbeam and front-axle beam, described handlebar comprises 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 fixedly connected with handlebar cross bar, described front fork is connected with front-wheel, described front fork and front-axle beam are rotationally connected, manage fixing under described cushion and seat, under described seat, pipe and slip pipe are socketed, it also comprises the first trailing wheel swing arm, second trailing wheel swing arm, front rod, rear connecting rod and attaching parts, described front rod one end and the first hinge, the described front rod other end and attaching parts one end hinged, the described attaching parts other end and rear connecting rod one end hinged, 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 fixedly connected with hind axle, described second trailing wheel swing arm one end is fixedly connected with hind axle, the described second trailing wheel swing arm other end and girder one end hinged, the described girder other end and the front underbeam other end hinged, described attaching parts is fixedly connected with slip pipe, and described girder is provided with the through hole with slip pipe bearing fit, described slip pipe is also provided with the limiting stopper for axial limiting slip pipe away from cushion one end.”
But the folding bicycle of this structure has following shortcoming:
One, front rod and rear connecting rod are arranged on girder and front underbeam, material is thus formed a similar triangle just put, like this because center of gravity is more top, so by bike time easily unstable, and the folding bicycle arranged like this after expansion seems that structure comparison is loose, and not very attractive in appearance;
Need point three steps to fold when two, folding, namely first handlebar montant is folded; Then pipe under seat is pressed down, it is made to be reduced in slip pipe, then trailing wheel is down turned, now slip pipe also can move down from through hole girder, and front rod, attaching parts, 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 arrangement in parallel and near; Last again by the position of front-wheel upset as trailing wheel overlap, fold up step so more, folding required time is longer, folds up more inconvenient;
Three, stretcher is not well folded, so the horizontal direction volume after folding shared by whole bicycle is still larger.
Four, chain folding device is not set, so be easy to when chain folds obscission occurs.
Utility model content
Technical problem to be solved in the utility model is: when providing a kind of compact conformation, good stability, folding time shorter, folding chain can not come off, folding convenient and folding after take the folding bicycle of small volume.
The technical scheme that the utility model adopts is: a kind of folding bicycle, comprise girder, front-wheel, trailing wheel, chain, sprocket wheel, sprocket crank, stretcher, handlebar, front fork, back vent, cushion, the lower pipe of seat, slip pipe, tie-beam and front-axle beam, described handlebar comprises handlebar cross bar and handlebar montant, described tie-beam one end and girder vertical direction are rotationally connected, 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 and front-axle beam are rotationally connected, described back vent is connected with trailing wheel, described back vent and girder vertical direction are rotationally connected, manage fixing under described cushion and seat, under described seat, pipe and slip pipe are socketed, described girder is provided with the first through hole with slip pipe bearing fit, it also comprises back vent support, lower link span, attaching parts, universal connection rod, triangle joint sheet, fork and connecting panel, described attaching parts is fixedly connected with slip pipe bottom, described back vent support one end and back vent vertical direction are rotationally connected, the described back vent support other end and attaching parts one end vertical direction are rotationally connected, described lower link span one end and attaching parts other end vertical direction are rotationally connected, the described lower link span other end and tie-beam vertical direction are rotationally connected, described fork one end and tie-beam are rotationally connected away from stretcher side horizontal direction, the described fork other end and connecting panel one end horizontal direction are rotationally connected, the described connecting panel other end and front-axle beam are rotationally connected near stretcher side horizontal direction, one end, base and connecting panel one end horizontal direction of described triangle joint sheet are rotationally connected, described triangle joint sheet drift angle one end and Universal linking lever one end vertical direction are rotationally connected, the described Universal linking lever other end is rotationally connected by universal ball end and lower link span, and described stretcher is connected with sprocket crank is folding, and described folding bicycle is also provided with for the folding folding device of chain.
Adopt above structure compared with prior art, the utility model has the following advantages: the back vent support that can fold and lower link span are arranged on girder and tie-beam bottom, and define a similar triangle put upside down with girder and tie-beam, such center of gravity is lower, namely more steady time by bike, be not easy overturning, and after launching, structure comparison is compact; And between tie-beam, lower link span and front-axle beam, be provided with fork, universal connection rod and adapter plate, front-axle beam can be driven also to be folded when pitching support and lower link span so after folding simultaneously simultaneously, namely when slip pipe, back vent support, lower link span are fully folded, front-axle beam is also complete folded good, effectively can reduce folding step like this, and then decrease folding time, accelerate folding efficiency; And stretcher is connected with sprocket crank is folding, stretcher can also be folded up after main portion is folded like this, and then reduce folding rear volume shared by whole bicycle, especially greatly reduce the width that folding rear whole water bicycle square upwards takies; And be provided with for the folding folding device of chain, when being folded by bicycle like this, chain is just not easy to have come off.
As preferably, described stretcher and sprocket crank fold to be connected and refer to, it also comprises pedal shaft, spring and spring frame, described spring frame is set on pedal shaft, and described spring frame and sprocket crank are rotationally connected away from sprocket wheel one end, 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 frame, the described spring other end is against on spacing preiection, described pedal shaft one end and stretcher are rotationally connected and axial limiting, described sprocket crank is provided with one for embedding the first spacing hole of location for the pedal shaft other end away from sprocket wheel one end horizontal direction, described sprocket crank is also provided with one for embedding the second spacing hole of location for the pedal shaft other end away from sprocket wheel one end vertical direction.Not only structure is very simple in the folding connection of this structure, and use also very convenient, stretcher is only needed to pull out, namely the pedal shaft other end is extracted from the first spacing hole simultaneously, then stretcher is rotated, make to rotate between spring frame and sprocket crank, and then make the other end of pedal shaft be embedded in the second spacing hole, reach effect folding preferably, namely the car load level attitude after having folded can reduce the length of two stretchers, what can greatly reduce the bicycle after folding like this takies volume, bicycle after folding can be placed in the less space of more multilevel width.
As preferably, the folding device described folding bicycle is also provided with for chain is folding refers to, it also comprises tension pulley support and tension wheel swing arm, described tension pulley support is fixedly connected with back vent, described tension wheel swing arm one end and tension pulley support vertical direction are rotationally connected, the described tension wheel swing arm other end is provided with first tension wheel, described first tension wheel engages with chain, and is provided with one between described tension pulley support and tension wheel swing arm for driving tension wheel swing arm toward the torsion spring pressed down.When normally using, torsion spring can drive tension wheel swing arm to press down, and then drive the first tension wheel to press against chain always, make chain tight, such bicycle can normally use, when needs are folding, torsion spring still can drive tension wheel swing arm toward pressing down, and then drives the first tension wheel to press against chain always, namely makes chain be in tensioning state always, would not come off when folding like this, make folding effect better.
As preferably, described tension wheel swing arm one end is also provided with second tension wheel engaged with chain, and described first tension wheel is in chain upper end, and the second tension wheel is in chain lower end.Arrange like this and can prevent tension wheel swing arm one end directly and chain contact, and make chain tension by upper and lower two tension wheels, such tension effects is better, and time namely folding, chain can not come off from bicycle more.
As preferably, described first hinge is provided with one for locking the snap close of connecting panel and front-axle beam, and described tie-beam is provided with the projection for snap close locking near stretcher side, and described connecting panel is also provided with the breach with described snap close matching form.By snap close is fastened projection, can well lock front-axle beam and tie-beam like this, both are made to be not easy separately, this ensures that there the phenomenon that front-axle beam and tie-beam can not occur by bike time and get loose, and on connecting panel, breach is set, such snap close can be in breach when fastening projection very well, makes not have protruding existence.
As preferably, described back vent support and lower link span are two parts, two parts back vent support is connected to attaching parts and back vent both sides, under two parts, link span is connected to attaching parts and tie-beam two lower connecting rod side, and is equipped with reinforced rib between link span under two parts back vent support and two parts.Back vent support and lower link span are arranged to two parts, and be connected to attaching parts and back vent both sides and attaching parts and tie-beam both sides, and strengthened by reinforced rib, like this when folding, back vent, tie-beam and attaching parts can not be stressed on one side, exert a force more even; And intensity is also higher after adding reinforced rib, be not easy to damage distortion.
As preferably, described girder is triangular structure, and described girder is also provided with one piece for preventing the tie-beam baffle plate that upwards rotational angle is excessive.Girder is arranged to triangular structure, so just further enhancing the structural strength of car load, and one piece of baffle plate is set on girder, just turn when tie-beam upwards rotates and forwards to and be close to baffle plate do not pass by can effectively prevent like this tie-beam from rotating excessively and damaged other links like this.
As preferably, be provided with a sleeve pipe slided for slip pipe in described girder, described sleeve pipe one end is communicated with the first through hole, and the described sleeve pipe other end is arranged on girder bottom, and described sleeve pipe tube wall both sides are all connected and fixed with girder.A sleeve pipe is set, good directional tagging can be played to slip pipe like this, and be fixedly connected with girder by sleeve pipe tube wall both sides, the intensity of girder can well be strengthened, prevent use or folding bicycle time main beam deformation.
As preferably, described folding bicycle center-of-gravity position is provided with one and conveniently mentions and the handle of folding bicycle.Arrange a handle at folding bicycle center-of-gravity position, such user only needs to catch handle to mention, and the snap close bicycle that then comes loose just can fold automatically, does not need user to go firmly, to fold up very convenient like this.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of folding bicycle of the utility model.
Fig. 2 is the left view of a kind of folding bicycle initial condition of the utility model.
Fig. 3 is the right elevation of a kind of folding bicycle initial condition of the utility model.
Fig. 4 is the left view after this handle riser of a kind of folding bicycle of the utility model folds.
Fig. 5 is the left view after a kind of folding bicycle of the utility model folds a part.
Fig. 6 is the birds-eye view after a kind of folding bicycle of the utility model folds a part.
Fig. 7 is the schematic perspective view after a kind of folding bicycle of the utility model folds a part.
Fig. 8 is the left view after a kind of folding bicycle of the utility model folds another part.
Fig. 9 is the birds-eye view after a kind of folding bicycle of the utility model folds another part.
Figure 10 is the schematic perspective view after a kind of folding bicycle of the utility model folds another part.
Figure 11 is the left view that a kind of folding bicycle of the utility model has folded.
Figure 12 is the birds-eye view that a kind of folding bicycle of the utility model has folded.
Figure 13 is the schematic perspective view that a kind of folding bicycle of the utility model has folded.
Figure 14 is the exploded view of the stretcher part of a kind of folding bicycle of the utility model.
Figure 15 is a kind of folding bicycle stretcher of the utility model part initial condition schematic diagram.
Figure 16 is the schematic diagram of the partially folded part of a kind of folding bicycle of the utility model stretcher.
Figure 17 is the partially folded schematic diagram completed of a kind of folding bicycle of the utility model stretcher.
As shown in the figure: 1, girder; 2, front-wheel; 3, trailing wheel; 4, chain; 5, sprocket wheel; 6, sprocket crank; 7, stretcher; 8, front fork; 9, back vent; 10, cushion; 11, to 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 span; 21, attaching parts; 22, universal connection rod; 23, triangle joint sheet; 24, fork; 25, connecting panel; 26, pedal shaft; 27, spring; 28, spring frame; 29, spacing preiection; 30, tension pulley support; 31, tension wheel swing arm; 32, the first tension wheel; 33, torsion spring; 34, the second tension wheel; 35, snap close; 36, baffle plate; 37, sleeve pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described further, but the utility model is not limited only to following detailed description of the invention.
As shown in the figure: a kind of folding bicycle, comprise girder 1, front-wheel 2, trailing wheel 3, chain 4, sprocket wheel 5, sprocket crank 6, stretcher 7, handlebar, front fork 8, back vent 9, cushion 10, the lower pipe 11 of seat, slip pipe 12, tie-beam 13 and front-axle beam 14, described handlebar comprises handlebar cross bar 15 and handlebar montant 16, described tie-beam 13 one end and girder 1 vertical direction are rotationally connected, 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 cushion 10 is fixed with pipe under seat 11, under described seat, pipe 11 and slip pipe 12 are socketed, described girder 1 is provided with the first through hole with slip pipe 12 bearing fit, it also comprises back vent support 19, lower link span 20, attaching parts 21, universal connection rod 22, triangle joint sheet 23, fork 24 and connecting panel 25, described attaching parts 21 is fixedly connected with slip pipe 12 bottom, described back vent support 19 one end and back vent 9 vertical direction are rotationally connected, described back vent support 19 other end and attaching parts 21 one end vertical direction are rotationally connected, described lower link span 20 one end and attaching parts 21 other end vertical direction are rotationally connected, described lower link span 20 other end and tie-beam 13 vertical direction are rotationally connected, described fork 24 one end and tie-beam 13 are rotationally connected away from stretcher 7 side horizontal direction, described fork 24 other end and connecting panel 25 one end horizontal direction are rotationally connected, described connecting panel 25 other end and front-axle beam 14 are rotationally connected near stretcher 7 side horizontal direction, one end, base and connecting panel 25 one end horizontal direction of described triangle joint sheet 23 are rotationally connected, described triangle joint sheet 23 drift angle one end and Universal linking lever 22 one end vertical direction are rotationally connected, described Universal linking lever 22 other end is rotationally connected by universal ball end and lower link span 20, and described stretcher 7 is connected with sprocket crank 6 is folding, and described folding bicycle is also provided with for the folding folding device of chain 5.The first hinge 17 between described tie-beam 13 and front-axle beam 14 is hinged on away from stretcher 7 side, connecting panel 25 and front-axle beam 14 are rotationally connected and are connected to front-axle beam 14 near stretcher 7 side, snap close 35 is also rotatably connected on this position, and tie-beam 13 this position be rotationally connected corresponding is provided with a depression coordinated with it, fork 24 entirety is the top being positioned at tie-beam 13, when being in normal riding condition, connecting panel 25 is close to tie-beam 13 near stretcher 7 side, front-axle beam 14 contacts with tie-beam 13, after having folded, connecting panel 25 be lean against before on two faces contacting with tie-beam 13 of front-axle beam 14.
Described stretcher 7 folds to be connected with sprocket crank 6 and refers to, it also comprises pedal shaft 26, spring 27 and spring frame 28, described spring frame 28 is set on pedal shaft 26, and described spring frame 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 frame 28, described spring 27 other end is against on spacing preiection 29, described pedal shaft 26 one end and stretcher 7 are rotationally connected and axial limiting, described sprocket crank 6 is provided with one for embedding the first spacing hole of location for pedal shaft 26 other end away from sprocket wheel 5 one end horizontal direction, described sprocket crank 6 is also provided with one for embedding the second spacing hole of location for pedal shaft 26 other end away from sprocket wheel 5 one end vertical direction.And described sprocket crank 6 is away from sprocket wheel 5 one end being also provided with a plane of fixing for pedal shaft 26 other end, even if do not have the second spacing hole like this, pedal shaft 26 also can be positioned at sprocket crank 6 away from sprocket wheel 5 one end.
The folding device described folding bicycle is also provided with for chain 5 is folding refers to, it also comprises tension pulley support 30 and tension wheel swing arm 31, described tension pulley support 30 is fixedly connected with back vent 9, described tension wheel swing arm 31 one end and tension pulley support 30 vertical direction are rotationally connected, described tension wheel swing arm 31 other end is provided with first tension wheel 32, described first tension wheel 32 engages with chain 4, and is provided with one between described tension pulley support 30 and tension wheel swing arm 31 for driving tension wheel swing arm 31 toward the torsion spring 33 pressed down.Chain 4 can loosen when folding, now because torsion spring 33 exerts a force to tension wheel swing arm 31 always, make tension wheel swing arm 31 press against chain 4 always, so chain 4 is tensionings always, and because tension wheel swing arm 31 does not directly contact with chain 4, but come and chain contact by two tension wheels, so also can not affect the proper motion of chain 4.
Described tension wheel swing arm 31 one end is also provided with second tension wheel 34 engaged with chain 5, and described first tension wheel 32 is in chain 4 upper end, and the second tension wheel 34 is in chain 4 lower end.
Described first hinge 17 is provided with one for locking the snap close 35 of connecting panel 25 and front-axle beam 14, and described tie-beam 13 is provided with the projection of locking for snap close 35 near stretcher 7 side, and described connecting panel 25 is also provided with the breach with described snap close 35 matching form.
Described back vent support 19 and lower link span 20 are two parts, two parts back vent support 19 is connected to attaching parts 21 and back vent 9 both sides, under two parts, link span 20 is connected to attaching parts 19 and tie-beam 13 both sides, and is equipped with reinforced rib between link span 20 under two parts back vent support 19 and two parts.
Described girder 1 is triangular structure, and described girder 1 is also provided with one piece for preventing tie-beam 13 baffle plate 36 that upwards rotational angle is excessive.Girder is also mainly also made up of three parts, two class triangular support plates on both sides, top is that two class triangular support plates are connected and fixed by one piece of connecting panel, and three is integrated, baffle plate 36 is exactly a part for connecting panel, first through hole is arranged on connecting panel, and sleeve pipe 37 tube wall both sides are welded and fixed with two blocks of class triangular support plates
Be provided with a sleeve pipe 37 slided for slip pipe 12 in described girder 1, described sleeve pipe 37 one end is communicated 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 and fixed with girder 1.Described sleeve pipe 37 is welded and fixed with girder 1.
Described folding bicycle center-of-gravity position is provided with one conveniently to mention and the handle of folding bicycle.Described center-of-gravity position is on girder 1 or tie-beam 13.
The folding principle of the utility model folding bicycle is: first folded by the second hinge 18 between handlebar montant 16 and front fork 8, pipe 11 of sitting down presses down, it is made to be reduced in slip pipe 12, then stretcher position is folded up, namely first stretcher 7 level is pulled out, then vertically insert after rotating, then snap close 35 is opened, then the handle being arranged on bicycle center of gravity place is mentioned, such 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 attaching parts 20 and back vent support 19 is driven to move down, tie-beam 13 and back vent 9 is driven to draw close toward centre again, last trailing wheel 3 can complete folding with tie-beam 13, trailing wheel 3 and slip pipe 12 are offseted, tie-beam 13 and slip pipe 12 offset, and same link span 20 at present can drive universal connection rod 22 to move, and then drive fork 24 and connecting panel 25 to rotate, and connecting panel 25 can drive front-axle beam 14 to rotate, finally can reach front-axle beam 14 and tie-beam 13 parallel folds, just only need to mention handle and open snap close 35, the folding bicycle of the application can complete most of folding process under gravity automatically, if there is the part be not completely folded centre, user also can be manually folding complete by it very easily.As shown in figure 13, the area now shared by bicycle only than a trailing wheel 2 a little greatly a bit, greatly reduces area occupied.
Claims (9)
1. a folding bicycle, comprise girder (1), front-wheel (2), trailing wheel (3), chain (4), sprocket wheel (5), sprocket crank (6), stretcher (7), handlebar, front fork (8), back vent (9), cushion (10), the lower pipe (11) of seat, slip pipe (12), tie-beam (13) and front-axle beam (14), described handlebar comprises handlebar cross bar (15) and handlebar montant (16), described tie-beam (13) one end and girder (1) vertical direction are rotationally connected, 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) and front-axle beam (14) are rotationally connected, described back vent (9) is connected with trailing wheel (3), described back vent (9) and girder (1) vertical direction are rotationally connected, manage under described cushion (10) and seat (11) fixing, manage (11) under described seat to be socketed with slip pipe (12), described girder (1) is provided with the first through hole with slip pipe (12) bearing fit, it is characterized in that: it also comprises back vent support (19), lower link span (20), attaching parts (21), universal connection rod (22), triangle joint sheet (23), fork (24) and connecting panel (25), described attaching parts (21) is fixedly connected with slip pipe (12) bottom, described back vent support (19) one end and back vent (9) vertical direction are rotationally connected, described back vent support (19) other end and attaching parts (21) one end vertical direction are rotationally connected, described lower link span (20) one end and attaching parts (21) other end vertical direction are rotationally connected, described lower link span (20) other end and tie-beam (13) vertical direction are rotationally connected, described fork (24) one end and tie-beam (13) are rotationally connected away from stretcher (7) side horizontal direction, described fork (24) other end and connecting panel (25) one end horizontal direction are rotationally connected, described connecting panel (25) other end and front-axle beam (14) are rotationally connected near stretcher (7) side horizontal direction, one end, base and connecting panel (25) one end horizontal direction of described triangle joint sheet (23) are rotationally connected, described triangle joint sheet (23) drift angle one end and Universal linking lever (22) one end vertical direction are rotationally connected, described Universal linking lever (22) other end is rotationally connected by universal ball end and lower link span (20), and described stretcher (7) is connected with sprocket crank (6) is folding, and described folding bicycle is also provided with for the folding folding device of chain (5).
2. a kind of folding bicycle according to claim 1, it is characterized in that: described stretcher (7) referred to sprocket crank (6) folding connection, it also comprises pedal shaft (26), spring (27) and spring frame (28), described spring frame (28) is set on pedal shaft (26), and described spring frame (28) and sprocket crank (6) are rotationally connected away from sprocket wheel (5) one end, 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 frame (28), described spring (27) other end is against on spacing preiection (29), described pedal shaft (26) one end and stretcher (7) are rotationally connected and axial limiting, described sprocket crank (6) is provided with one for embedding the first spacing hole of location for pedal shaft (26) other end away from sprocket wheel (5) one end horizontal direction, described sprocket crank (6) is also provided with one for embedding the second spacing hole of location for pedal shaft (26) other end away from sprocket wheel (5) one end vertical direction.
3. a kind of folding bicycle according to claim 1, it is characterized in that: the folding device described folding bicycle is also provided with for chain (4) is folding refers to, it also comprises tension pulley support (30) and tension wheel swing arm (31), described tension pulley support (30) is fixedly connected with back vent (9), described tension wheel swing arm (31) one end and tension pulley support (30) vertical direction are rotationally connected, described tension wheel swing arm (31) other end is provided with first tension wheel (32), described first tension wheel (32) is engaged with chain (4), and be provided with one between described tension pulley support (30) and tension wheel swing arm (31) for driving tension wheel swing arm (31) toward the torsion spring (33) pressed down.
4. a kind of folding bicycle according to claim 3, it is characterized in that: described tension wheel swing arm (31) one end is also provided with second tension wheel (34) engaged with chain (5), and described first tension wheel (32) is in chain (4) upper end, the second tension wheel (34) is in chain (4) lower end.
5. a kind of folding bicycle according to claim 1, it is characterized in that: described first hinge (17) is provided with one for locking the snap close (35) of connecting panel (25) and front-axle beam (14), described tie-beam (13) is provided with the projection of locking for snap close (35) near stretcher (7) side, and described connecting panel (25) is also provided with the breach with described snap close (35) matching form.
6. a kind of folding bicycle according to claim 1, it is characterized in that: described back vent support (19) and lower link span (20) are two parts, two parts back vent support (19) is connected to attaching parts (21) and back vent (9) both sides, under two parts, link span (20) is connected to attaching parts (19) and tie-beam (13) both sides, and is equipped with reinforced rib between link span (20) under two parts back vent support (19) and two parts.
7. a kind of folding bicycle according to claim 1, is characterized in that: described girder (1) is triangular structure, and described girder (1) is also provided with one piece for preventing tie-beam (13) baffle plate (36) that upwards rotational angle is excessive.
8. a kind of folding bicycle 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 is communicated 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 and fixed with girder (1).
9. a kind of folding bicycle according to claim 1, is characterized in that: described folding bicycle center-of-gravity position is provided with one and conveniently mentions and the handle of folding bicycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545321.5U CN204056145U (en) | 2014-09-23 | 2014-09-23 | A kind of folding bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545321.5U CN204056145U (en) | 2014-09-23 | 2014-09-23 | A kind of folding bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204056145U true CN204056145U (en) | 2014-12-31 |
Family
ID=52197709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420545321.5U Withdrawn - After Issue CN204056145U (en) | 2014-09-23 | 2014-09-23 | A kind of folding bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204056145U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210598A (en) * | 2014-09-23 | 2014-12-17 | 陈文朗 | Foldable bicycle |
| CN106476961A (en) * | 2016-11-03 | 2017-03-08 | 深圳市台铃电动车有限公司 | A kind of folding stand and folded bicycle |
| WO2018152599A1 (en) | 2017-02-24 | 2018-08-30 | Aruanã Energia S/A | Improvements to a folding elliptical bicycle |
-
2014
- 2014-09-23 CN CN201420545321.5U patent/CN204056145U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210598A (en) * | 2014-09-23 | 2014-12-17 | 陈文朗 | Foldable bicycle |
| CN106476961A (en) * | 2016-11-03 | 2017-03-08 | 深圳市台铃电动车有限公司 | A kind of folding stand and folded bicycle |
| CN106476961B (en) * | 2016-11-03 | 2022-04-01 | 东莞市台铃车业有限公司 | Folding frame and folding car |
| WO2018152599A1 (en) | 2017-02-24 | 2018-08-30 | Aruanã Energia S/A | Improvements to a folding elliptical bicycle |
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Granted publication date: 20141231 Effective date of abandoning: 20160824 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |