CN104828190B

CN104828190B - Folding bike

Info

Publication number: CN104828190B
Application number: CN201410046835.0A
Authority: CN
Inventors: 王耀钦; 王硕锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-10
Filing date: 2014-02-10
Publication date: 2018-02-06
Anticipated expiration: 2034-02-10
Also published as: CN104828190A

Abstract

Folding bike of the present invention includes a vehicle frame, one seat cushion, one front-wheel and a trailing wheel, vehicle frame includes a fore-stock, one vertical tube and an after-poppet, fore-stock includes a first paragraph and a second segment, the bottom side of second segment is hubbed at the bottom side of first paragraph, fore-stock has a virtual pivotal axis between first paragraph and second segment, first paragraph and second segment is set to be pivoted relative to each other bending, fore-stock second segment is additionally provided with a seat pipe, vertical tube is hubbed at first paragraph, vertical tube is extended with a front fork, after-poppet is connected to fore-stock second segment, seat cushion is located at seat pipe, front-wheel is hubbed at front fork, trailing wheel is hubbed at after-poppet, because the folding structure of bicycle is simple, enable the very quick folding of bicycle.

Description

Folding bike

Technical field

The present invention mainly discloses a kind of folding bike, espespecially a kind of folding bike simple in construction.

Background technology

" folding bicycle two-period form quick-disassembly structure " Patent Case of TaiWan, China patent the M464387th is referred to, it is taken off Dew has a kind of folding mode of bicycle, and the folding mode of general folding bike is all that the upper tube of vehicle frame is divided into two sections Formula, and upper tube can doubling in the horizontal direction, after folding bicycle, front-wheel and trailing wheel vertically each other side by side, to reduce The volume of bicycle, and then the effect for being convenient for carrying and storing.

However, though the length of bicycle can be reduced using the bicycle of above-mentioned folding mode, bicycle can be increased Width, when user is towing bicycle, side swipe is very easy on the contrary to other pedestrians, and carry bicycle and take popular fortune When defeated, bicycle also takes the width in aisle very much, and because the hand handle that bicycle tows after folding for user can't Position among bicycle, easily cause bicycle stress unequal, skew is produced during movement.

The content of the invention

Folding bike of the present invention enables bicycle its main purpose is, so that the folding structure of bicycle is simple Enough very quick foldings.

For the above-mentioned purpose, the present invention provides a kind of folding bike, and it includes：

One vehicle frame, the vehicle frame include a fore-stock, a vertical tube and an after-poppet, the fore-stock and include one Individual first paragraph and a second segment, the bottom side of the second segment are hubbed at the bottom side of the first paragraph, the fore-stock in the first paragraph with There is a virtual pivotal axis between the second segment, enable the first paragraph of the fore-stock with the second segment in expanded position with receiving Be pivoted relative to each other bending between folding position, and the one end of the fore-stock first paragraph away from the second segment is additionally provided with a front tube, should Fore-stock forms a preceding segment length by the front tube to the distance of the virtual pivotal axis, and the fore-stock second segment is additionally provided with a seat Pipe, the vertical tube are hubbed in the front tube of the fore-stock, and the bottom of the vertical tube is extended with a front fork, and the top of the vertical tube is provided with two Individual handle, the after-poppet are connected to the one end of the fore-stock second segment away from the first paragraph；

One seat cushion, the seat cushion are hubbed at the one end of the seat pipe away from the fore-stock second segment；

One front-wheel, the front-wheel are hubbed at the front fork, and the front-wheel has a virtual axle and a wheel radius, the preceding branch The preceding segment length of frame is less than the wheel radius of the front-wheel；

One trailing wheel, the trailing wheel are hubbed at the after-poppet, and the trailing wheel has a virtual axle；

The fore-stock is in collapsed position, by the virtual pivotal axis end on observation of the fore-stock, the virtual pivot of the fore-stock Not on the same line, the bicycle also has one virtually to the virtual axle of rotating shaft, the virtual axle of the front-wheel and the trailing wheel Plane, the virtual axle of the front-wheel and the virtual axle of the trailing wheel are all on the virtual plane, the virtual pivotal axis of the fore-stock Positioned at the virtual plane close to the side of the second segment of the fore-stock.

Described folding bike, wherein, the virtual axle of the front-wheel, should parallel to the virtual pivotal axis of the fore-stock Virtual pivotal axis of the virtual axle of trailing wheel parallel to the fore-stock.

Described folding bike, wherein, the first paragraph close to the side of the second segment formed with one first against Face, the second segment is close to the side of the first paragraph formed with second abutment face, and for the fore-stock in expanded position, this second Abutment face is resisted against first abutment face, and for the fore-stock in collapsed position, first abutment face and second abutment face are each other Separation.

Described folding bike, wherein, the fore-stock is additionally provided with a locking and buckled, while the locking button is selective Top side and second segment top side along plummet direction of the first paragraph along plummet direction is connected to, the fore-stock is maintained expansion Position.

Described folding bike, wherein, described two handles can between expanded position and collapsed position phase The vertical tube is pivoted, for described two handles in expanded position, described two handles are in the horizontal direction toward away from the vertical tube Direction extension, for described two handles in collapsed position, described two handles and the vertical tube are each other side by side.

Described folding bike, wherein, the after-poppet include a back vent, a shock absorber, one first Strut and a second support bar, one end of the back vent are located at the fore-stock second segment, after one end of the shock absorber is hubbed at this Between the both ends of fork, one end of the first support bar is hubbed at the one end of the back vent away from the fore-stock, the second support bar One end is hubbed at the one end of the shock absorber away from the back vent and the other end is hubbed at the one end of the first support bar away from the back vent, The trailing wheel is hubbed at the first support bar and second support bar of the after-poppet.

Described folding bike, wherein, the after-poppet also connects in the shock absorber and the junction of the second support bar Be connected to a mud baffle plate, by the fore-stock virtual pivotal axis end on observation when, the mud baffle plate is along the shock absorber both ends line Virtual extension line extends toward the direction away from the back vent.

Described folding bike, wherein, the both sides of the mud baffle plate away from the back vent one end are pivoted with one and led respectively Wheel.

Described folding bike, wherein, the seat pipe is hubbed at the vehicle frame in the second segment of the fore-stock, the seat pipe energy The relative fore-stock pivots enough between expanded position and collapsed position, and the seat pipe in expanded position, toward remote be somebody's turn to do by the seat pipe The direction extension of fore-stock, for the seat pipe in collapsed position, the second segment of the seat pipe and the fore-stock is each other side by side, and the seat pipe Extend toward the direction away from the after-poppet.

Described folding bike, wherein, the vehicle frame is additionally provided with two foot pieces, and described two foot pieces distinguish pivot Located at the both sides of the fore-stock, described two foot pieces can be between expanded position and collapsed position with respect to the fore-stock pivot Turn, when described two foot pieces are located at expanded position, described two foot pieces extend toward the direction away from the seat pipe, described Two foot pieces when being located at collapsed position, the second segment of described two foot pieces and the fore-stock is each other side by side, and described Two foot pieces toward away from the after-poppet direction extend, the fore-stock in collapsed position, the front-wheel be located at described two Between individual foot piece.

Described folding bike, wherein, the after-poppet includes a back vent, and one end of the back vent is located at the preceding branch Frame second segment, the bicycle have two trailing wheels altogether, and described two trailing wheels are hubbed at the back vent away from the fore-stock respectively One end, the after-poppet are also associated with a support feet in the back vent, by the fore-stock virtual pivotal axis end on observation when, the branch Spike extends toward the direction away from the fore-stock.

Described folding bike, wherein, the bicycle also includes a transmission component, and the transmission component is connected to The bottom side of the fore-stock, the transmission component include a first connecting rod, a second connecting rod, a third connecting rod and a biography Moving axis, one end of the first connecting rod are hubbed at the virtual pivotal axis of the fore-stock, and it is remote that the second connecting rod is hubbed at the fore-stock At the one of the virtual pivotal axis, the third connecting rod is hubbed at the one end of the second connecting rod away from the fore-stock, and the power transmission shaft is simultaneously The first connecting rod is connected to away from the one end of one end of the fore-stock and the third connecting rod away from the fore-stock, the transmission component is also Including two cranks, a drive and a transmission belt, described two cranks are connected to the both ends of the power transmission shaft, The driving wheel tube is outside the power transmission shaft, and the drive, between two described cranks, the transmission belt is sheathed on the biography Outside driving wheel, the transmission component selectivity is moved between expanded position and collapsed position, the transmission component in expanded position, The second connecting rod extends in the same direction with the third connecting rod, and making the power transmission shaft, the transmission component is by deploying away from the fore-stock Position toward collapsed position move when, the second connecting rod pivots relative to each other with the third connecting rod, and the first connecting rod is with respect to the preceding branch Frame pivots, and for the transmission component when collapsed position, the power transmission shaft is close to the fore-stock.

The beneficial effects of the invention are as follows：The folding structure of bicycle is simple, enables the very quick folding of bicycle.

Brief description of the drawings

Fig. 1：For the stereo appearance figure of folding bike one embodiment of the present invention；

Fig. 2：For the side elevational schematic view of folding bike one embodiment of the present invention；

Fig. 3：For the handle folding action diagram of folding bike one embodiment of the present invention；

Fig. 4：For the fore-stock folding action diagram of folding bike one embodiment of the present invention；

Fig. 5：For the fore-stock folding action diagram of folding bike one embodiment of the present invention；

Fig. 6：For the foot piece and seat pipe folding action diagram of folding bike one embodiment of the present invention；

Fig. 7：For stereo appearance figure after the folding of folding bike one embodiment of the present invention；

Fig. 8：Use state figure is towed for folding bike one embodiment of the present invention；

Fig. 9：For the stereo appearance figure of second embodiment of folding bike of the present invention；

Figure 10：For the side elevational schematic view of second embodiment of folding bike of the present invention；

Figure 11：For the fore-stock folding action diagram of second embodiment of folding bike of the present invention；

Figure 12：Use state figure is towed for second embodiment of folding bike of the present invention；

Figure 13：For the stereo appearance figure of 3rd embodiment of folding bike of the present invention；

Figure 14：For the side elevational schematic view of 3rd embodiment of folding bike of the present invention；

Figure 15：For the fore-stock folding action diagram of 3rd embodiment of folding bike of the present invention.

Description of reference numerals：10- bicycles；20- vehicle frames；21- fore-stocks；211- first paragraphs；212- second segments；213- One abutment face；The abutment faces of 214- second；The virtual pivotal axis of 215-；216- locking buttons；217- front tubes；22- vertical tubes；221- front forks； 222- handles；23- after-poppets；231- back vents；232- shock absorbers；233- first support bars；234- second support bars；235- mud is kept off Plate；236- guide wheels；24- seat pipes；25- foot pieces；30- seat cushions；40- front-wheels；41- virtual axles；50- trailing wheels；51- virtually turns Axle；10a- bicycles；21a- fore-stocks；The virtual pivotal axis of 215a-；23a- after-poppets；231a- back vents；237a- support feets； 50a- trailing wheels；10b- bicycles；21b- fore-stocks；The virtual pivotal axis of 215b-；50b- trailing wheels；60b- transmission components；61b- first Connecting rod；62b- second connecting rods；63b- third connecting rods；64b- power transmission shafts；65b- cranks；66b- drives；67b- transmission belts；90- Handle；Segment length before L-；R- takes turns radius；P- virtual planes.

Embodiment

It refer to shown in Fig. 1 and Fig. 2, be the stereo appearance figure and side elevational schematic view of folding bike of the present invention.This hair Bright bicycle 10 includes a front-wheel 40 of seat cushion 30, one of vehicle frame 20, one and a trailing wheel 50；Wherein：

The vehicle frame 20 includes 21, vertical tubes 22 of a fore-stock and an after-poppet 23, the fore-stock 21 include One first paragraph 211 and a second segment 212, the first paragraph 211 support close to the side of the second segment 212 formed with one first By face 213 (as shown in Figure 4), the second segment 212 close to the side of the first paragraph 211 formed with second abutment face 214 (such as Shown in Fig. 4), second abutment face 214 be capable of selectivity be resisted against first abutment face 213.The second segment 212 is along plummet side To bottom side be hubbed at the bottom side of the first paragraph 211 along plummet direction, make the fore-stock 21 in the first paragraph 211 and the second segment There is a virtual pivotal axis 215, the virtual pivotal axis 215 of the fore-stock 21 is horizontally extending, makes the preceding branch between 212 The first paragraph 211 of frame 21 and the second segment 212 can be pivoted relative to each other bending between expanded position and collapsed position, before this For support 21 in expanded position, second abutment face 214 is resisted against first abutment face 213.

The fore-stock 21 is additionally provided with a locking and buckles 216, and the locking button 216 is connected to the first paragraph while selective 211 along plummet direction top side and the top side of the second segment 212 along plummet direction, the fore-stock 21 is maintained expanded position. The one end of the first paragraph 211 away from the second segment 212 of fore-stock 21 is additionally provided with a front tube 217, and the fore-stock 21 is by the front tube 217 to the virtual pivotal axis 215 distance formed a preceding segment length L.

The vertical tube 22 is hubbed in the front tube 217 of the fore-stock 21, and the bottom of the vertical tube 22 along plummet direction is extended with one Individual front fork 221, the top of the vertical tube 22 along plummet direction are pivoted with two handles 222, and described two handles 222 can opened up The relative vertical tube 22 pivots between open position and collapsed position, and described two handles 222 are in expanded position, described two Handle 222 extends toward the direction away from the vertical tube 22 in the horizontal direction.

The after-poppet 23 is connected to the one end of the second segment 212 away from the first paragraph 211 of fore-stock 21, and the after-poppet 23 wraps A first support bar 233 of shock absorber 232, one of back vent 231, one and a second support bar 234, the back vent 231 are included One end be located at the second segment 212 of fore-stock 21, one end of the shock absorber 232 is hubbed between the both ends of the back vent 231, and this One end of one support bar 233 is hubbed at the one end of the back vent 231 away from the fore-stock 21, one end pivot of the second support bar 234 Located at the one end 231 of the shock absorber 232 away from the back vent, the other end is hubbed at the first support bar 233 away from the back vent 231 One end.

The after-poppet 23 is also associated with a mud baffle plate in the junction of the shock absorber 232 and the second support bar 234 235, by the fore-stock 21 virtual 215 end on observation of pivotal axis when, the mud baffle plate 235 is along the both ends line of shock absorber 232 Virtual extension line extends toward the direction away from the back vent 231, both sides difference pivot of the mud baffle plate 235 away from the one end of back vent 231 Provided with a guide wheel 236.

The vehicle frame 20 is also pivoted with a seat pipe 24 in the second segment 212 of the fore-stock 21, and the seat pipe 24 can deployed The relative fore-stock 21 pivots between position and collapsed position, and for the seat pipe 24 in expanded position, the seat pipe 24 is toward away from before this The direction extension of support 21.The vehicle frame 20 is additionally provided with two foot pieces 25, before described two foot pieces 25 are hubbed at this respectively The both sides of support 21, described two foot pieces 25 can be between expanded position and collapsed position with respect to the pivot of fore-stock 21 Turn, when described two foot pieces 25 are located at expanded position, described two foot pieces 25 prolong toward the direction away from the seat pipe 24 Stretch.

The seat cushion 30 is hubbed at the one end of the seat pipe 24 away from the second segment 212 of fore-stock 21.

The front-wheel 40 is hubbed at the front fork 221, the front-wheel 40 is had a virtual axle 41, and the virtual of the front-wheel 40 turns Axle 41 is parallel to the virtual pivotal axis 215 of the fore-stock 21, and the front-wheel 40 is with a wheel radius R, the leading portion of the fore-stock 21 Length L is less than the wheel radius R of the front-wheel 40.

The trailing wheel 50 is hubbed at the first support bar 233 and second support bar 234 of the after-poppet 23, has the trailing wheel 50 One virtual axle 51, the virtual pivotal axis 215 of the virtual axle 51 of the trailing wheel 50 parallel to the fore-stock 21.

Continue referring to shown in Fig. 3 to Fig. 8, outside three-dimensional after the folding action diagram of folding bike of the present invention, folding Sight figure and tow use state figure.The bicycle 10 can ride for rider, and rider can be sitting in the seat cushion 30 when riding On, both feet are trampled in two described foot pieces 25, and with hands grasping in two described handles 222, the energy of bicycle 10 It is enough the bicycle 10 is advanced in a manner of driven by power.

The bicycle 10 in non-working condition can folding be convenient for carrying with reducing volume, after the folding of bicycle 10, In collapsed position, first abutment face 213 separates the fore-stock 21 each other with second abutment face 214, makes 40, the front-wheel Between two described foot pieces 25, by the end on observation of virtual pivotal axis 215 of the fore-stock 21, the fore-stock 21 it is virtual The virtual axle 51 of pivotal axis 215, the virtual axle 41 of the front-wheel 40 and the trailing wheel 50 is not on the same line, and the bicycle 10 also have an imaginary plane P, and the virtual axle 41 of the front-wheel 40 is all virtually put down with the virtual axle 51 of the trailing wheel 50 at this On the P of face, the virtual pivotal axis 215 of the fore-stock 21 is located at the imaginary plane P close to the one of the second segment 212 of the fore-stock 21 Side.

Two described handles 222 in collapsed position, described two handles 222 and the vertical tube 22 each other side by side, institute When two foot pieces 25 stated are located at collapsed position, the second segment 212 of described two foot pieces 25 and the fore-stock 21 is each other Side by side, and described two foot pieces 25 extend toward the direction away from the after-poppet 23.The seat pipe 24 is in collapsed position, the seat The second segment 212 of pipe 24 and the fore-stock 21 is each other side by side, and the seat pipe 24 extends toward the direction away from the after-poppet 23.

The bicycle 10 is in line shape after folding, and user can hold handle 90 to tow the bicycle 10 with hand, It is easily carried the bicycle 10, and two guide wheels 236 described in having because of the bicycle 10, rider are towing this voluntarily During car 10, ground can be resisted against with two described guide wheels 236 and forms two-point contact, avoids the bicycle 10 from toppling over, effectively Save the strength of rider.And because the folding structure of the bicycle 10 is simple, the bicycle 10 is set quickly to receive very much Folding.

It refer to shown in Fig. 9 to Figure 12, be stereo appearance figure, the side view of second embodiment of folding bike of the present invention Outside drawing, fore-stock folding action diagram and tow use state figure.The master of second embodiment of the invention and one embodiment Difference is wanted to be that bicycle 10a includes two trailing wheels 50a, described two trailing wheel 50a and is hubbed at the back vent respectively altogether The one end of 231a away from fore-stock 21a, after-poppet 23a is also associated with a support feet 237a in back vent 231a, by this During fore-stock 21a virtual pivotal axis 215a end on observation, support feet 237a extends toward the direction away from fore-stock 21a, Remaining structure of second embodiment is identical with one embodiment, is then repeated no more at this.

Bicycle 10a can be resisted against ground by two described trailing wheel 50a and form two-point contact after folding, Towed for user, avoid the bicycle 10 from toppling over, effectively save the strength of rider.And because support feet 237a can be supported In ground, coordinate two described trailing wheel 50a, can erect bicycle 10a.

It refer to shown in Figure 13 to Figure 15, be stereo appearance figure, the side of 3rd embodiment of folding bike of the present invention Depending on outside drawing and fore-stock folding action diagram.The Main Differences of third embodiment of the invention and one embodiment are this certainly Driving 10b also includes a transmission component 60b, and transmission component 60b is connected to fore-stock 21b bottom side, the transmission group Part 60b includes a first connecting rod 61b, a second connecting rod 62b, a third connecting rod 63b and a power transmission shaft 64b, should First connecting rod 61b one end is hubbed at fore-stock 21b virtual pivotal axis 215b, and second connecting rod 62b is hubbed at the preceding branch Frame 21b away from the virtual pivotal axis 215b one at, third connecting rod 63b is hubbed at second connecting rod 62b away from the fore-stock 21b one end, power transmission shaft 64b are connected to the first connecting rod 61b one end and the third connecting rod away from fore-stock 21b simultaneously The one end of 63b away from fore-stock 21b.

Transmission component 60b also includes two crank 65b, a drive 66b and a transmission belt 67b, described Two crank 65b are connected to power transmission shaft 64b both ends, and drive 66b is sheathed on outside power transmission shaft 64b, and the biography Between two described crank 65b, transmission belt 67b is sheathed on outside the drive 66b driving wheel 66b, the present invention the 3rd Remaining structure of embodiment is identical with one embodiment, is then repeated no more at this.

When user rides bicycle 10b, two described crank 65b can be trampled to drive power transmission shaft 64b Rotate, after power transmission shaft 64b drives drive 66b to rotate, drive 66b drives trailing wheel 50b by transmission belt 67b Rotate.Transmission component 60b is capable of being moved between expanded position and collapsed position for selectivity, and the transmission component 60b is being opened up During open position, second connecting rod 62b extends in the same direction with third connecting rod 63b, makes power transmission shaft 64b away from the fore-stock 21b, transmission component 60b from expanded position toward collapsed position move when, second connecting rod 62b is relative with third connecting rod 63b Pivotally, first connecting rod 61b pivots with respect to fore-stock 21b, and transmission component 60b is when collapsed position, the power transmission shaft For 64b close to fore-stock 21b, the folding mode for enabling bicycle 10b by said structure is applied to a variety of different kenels Car type.

There is advantages below with regard to the present invention described above that can summarize：

1. being folding bike of the present invention, wherein bicycle includes a vehicle frame, a seat cushion, a front-wheel and one Individual trailing wheel, vehicle frame include a fore-stock, a vertical tube and an after-poppet, and fore-stock includes a first paragraph and one Second segment, the bottom side of second segment are hubbed at the bottom side of first paragraph, and fore-stock has one virtually between first paragraph and second segment Pivotal axis, enables the first paragraph of fore-stock and second segment is pivoted relative to each other bending between expanded position and collapsed position, The one end of fore-stock first paragraph away from second segment is additionally provided with a front tube, and fore-stock second segment is additionally provided with a seat pipe, vertical tube pivot In the front tube of fore-stock, the bottom of vertical tube is extended with a front fork, and the top of vertical tube is provided with two handles, after-poppet connection In the one end of fore-stock second segment away from first paragraph, seat cushion is hubbed at the one end of seat pipe away from fore-stock second segment, and front-wheel is pivoted In front fork, front-wheel has a virtual axle, and parallel to the virtual pivotal axis of fore-stock, trailing wheel is hubbed at for the virtual axle of front-wheel After-poppet, trailing wheel have a virtual axle, the virtual axle of trailing wheel parallel to fore-stock virtual pivotal axis, because of bicycle Folding structure is simple, enables the very quick folding of bicycle.

Claims

1. a kind of folding bike, it is characterised in that include：

One vehicle frame, the vehicle frame include a fore-stock, a vertical tube and an after-poppet, and the fore-stock includes one One section and a second segment, the bottom side of the second segment are hubbed at the bottom side of the first paragraph, the fore-stock in the first paragraph and this There is a virtual pivotal axis between two sections, enable the first paragraph of the fore-stock with the second segment in expanded position and folding position Be pivoted relative to each other bending between putting, and the one end of the fore-stock first paragraph away from the second segment is provided with a front tube, the fore-stock One preceding segment length is formed by the front tube to the distance of the virtual pivotal axis, the fore-stock second segment is provided with a seat pipe, and this is perpendicular Pipe is hubbed in the front tube of the fore-stock, and the bottom of the vertical tube is extended with a front fork, and the top of the vertical tube is provided with two handles, The after-poppet is connected to the one end of the fore-stock second segment away from the first paragraph, and the after-poppet is also associated with a mud baffle plate, Two guide wheels are pivoted with the after-poppet, two guide wheels are located at the both sides of the one end of the mud baffle plate away from after-poppet respectively；

One front-wheel, the front-wheel are hubbed at the front fork, and the front-wheel has a virtual axle and a wheel radius, the fore-stock Preceding segment length is less than the wheel radius of the front-wheel；

After the bicycle folding, the fore-stock is in collapsed position, by the virtual pivotal axis end on observation of the fore-stock, the preceding branch Not on the same line, the bicycle also has the virtual axle of the virtual pivotal axis of frame, the virtual axle of the front-wheel and the trailing wheel Have a virtual plane, the virtual axle of the front-wheel with the virtual axle of the trailing wheel all on the virtual plane, the fore-stock Virtual pivotal axis is located at the virtual plane can be with trailing wheel and two close to the side of the second segment of the fore-stock, the bicycle The mode that guide wheel contacts to earth is towed.

2. a kind of folding bike, it is characterised in that include：

One vehicle frame, the vehicle frame include a fore-stock, a vertical tube and an after-poppet, and the fore-stock includes one One section and a second segment, the bottom side of the second segment are hubbed at the bottom side of the first paragraph, the fore-stock in the first paragraph and this There is a virtual pivotal axis between two sections, enable the first paragraph of the fore-stock with the second segment in expanded position and folding position Be pivoted relative to each other bending between putting, and the one end of the fore-stock first paragraph away from the second segment is provided with a front tube, the fore-stock One preceding segment length is formed by the front tube to the distance of the virtual pivotal axis, the fore-stock second segment is provided with a seat pipe, and this is perpendicular Pipe is hubbed in the front tube of the fore-stock, and the bottom of the vertical tube is extended with a front fork, and the top of the vertical tube is provided with two handles, The after-poppet is connected to the one end of the fore-stock second segment away from the first paragraph, and the after-poppet includes a back vent, the rear branch Frame is also associated with a support feet in the back vent, by the fore-stock virtual pivotal axis end on observation when, the support feet is toward remote The direction extension of the fore-stock；

Trailing wheel, the trailing wheel are hubbed at the after-poppet, and the trailing wheel has a virtual axle；

After the bicycle folding, the fore-stock is in collapsed position, by the virtual pivotal axis end on observation of the fore-stock, the preceding branch Not on the same line, the bicycle also has the virtual axle of the virtual pivotal axis of frame, the virtual axle of the front-wheel and the trailing wheel Have a virtual plane, the virtual axle of the front-wheel with the virtual axle of the trailing wheel all on the virtual plane, the fore-stock Virtual pivotal axis is located at the virtual plane can be with trailing wheel and support close to the side of the second segment of the fore-stock, the bicycle The mode that pin contacts to earth is stood.

3. folding bike as claimed in claim 1 or 2, it is characterised in that the virtual axle of the front-wheel is parallel to before this The virtual pivotal axis of support, the virtual pivotal axis of the virtual axle of the trailing wheel parallel to the fore-stock.

4. folding bike as claimed in claim 3, it is characterised in that the first paragraph is formed close to the side of the second segment There is first abutment face, the second segment is being opened up close to the side of the first paragraph formed with second abutment face, the fore-stock During open position, second abutment face is resisted against first abutment face, and for the fore-stock in collapsed position, first abutment face is with being somebody's turn to do Second abutment face separates each other.

5. folding bike as claimed in claim 4, it is characterised in that the fore-stock is additionally provided with a locking and buckled, the lock Admittedly being connected to the upside of the first paragraph and the upside of the second segment while detaining selective, the fore-stock is set to maintain expansion position Put.

6. folding bike as claimed in claim 4, it is characterised in that two described handles can expanded position with The relative vertical tube pivots between collapsed position, and described two handles are in expanded position, described two handles edges level side Yearn for the direction away from the vertical tube to extend, described two handles in collapsed position, described two handles and the vertical tube that This is side by side.

7. folding bike as claimed in claim 1, it is characterised in that the after-poppet include a back vent, one keep away Shake device, a first support bar and a second support bar, one end of the back vent are located at the fore-stock second segment, the shock absorber One end is hubbed between the both ends of the back vent, and one end of the first support bar is hubbed at the one end of the back vent away from the fore-stock, One end of the second support bar be hubbed at the one end of the shock absorber away from the back vent and the other end to be hubbed at the first support bar remote From one end of the back vent, the trailing wheel is hubbed at the first support bar and second support bar of the after-poppet.

8. folding bike as claimed in claim 7, it is characterised in that the mud baffle plate is connected to the after-poppet in the shock-absorbing The junction of device and the second support bar, by the fore-stock virtual pivotal axis end on observation when, the mud baffle plate is along the shock absorber The virtual extension line of both ends line extends toward the direction away from the back vent.

9. folding bike as claimed in claim 4, it is characterised in that the seat pipe is hubbed at the vehicle frame in the fore-stock Second segment, the seat pipe the relative fore-stock can pivot between expanded position and collapsed position, the seat pipe in expanded position, The seat pipe extends toward the direction away from the fore-stock, the seat pipe in collapsed position, the second segment of the seat pipe and the fore-stock that This side by side, and the seat pipe toward away from the after-poppet direction extend.

10. folding bike as claimed in claim 4, it is characterised in that the vehicle frame is additionally provided with two foot pieces, described Two foot pieces are hubbed at the both sides of the fore-stock respectively, described two foot pieces can expanded position and collapsed position it Between the relative fore-stock pivot, when described two foot pieces be located at expanded position, described two foot pieces are toward the remote seat The direction extension of pipe, when described two foot pieces are located at collapsed position, described two foot pieces and the second of the fore-stock Each other side by side, and described two foot pieces extend toward the direction away from the after-poppet, the fore-stock, should in collapsed position for section Front-wheel is between two described foot pieces.

11. folding bike as claimed in claim 2, it is characterised in that one end of the back vent is located at the fore-stock second Section, the bicycle have two trailing wheels altogether, and described two trailing wheels are hubbed at the one end of the back vent away from the fore-stock respectively.

12. folding bike as claimed in claim 4, it is characterised in that the bicycle also includes a transmission component, The transmission component is connected to the bottom side of the fore-stock, the transmission component include a first connecting rod, a second connecting rod, one Third connecting rod and a power transmission shaft, one end of the first connecting rod are hubbed at the virtual pivotal axis of the fore-stock, the second connecting rod pivot At one of the fore-stock away from the virtual pivotal axis, the third connecting rod is hubbed at one of the second connecting rod away from the fore-stock End, the power transmission shaft are connected to the first connecting rod away from one of one end of the fore-stock and the third connecting rod away from the fore-stock simultaneously End, the transmission component also include two cranks, a drive and a transmission belt, and described two cranks are connected to The both ends of the power transmission shaft, the driving wheel tube is outside the power transmission shaft, and the drive is between two described cranks, the biography Dynamic band is sheathed on outside the drive, and transmission component selectivity moves between expanded position and collapsed position, the transmission group In expanded position, the second connecting rod extends part in the same direction with the third connecting rod, makes the power transmission shaft away from the fore-stock, should Transmission component from expanded position toward collapsed position move when, the second connecting rod pivots relative to each other with the third connecting rod, and this first Connecting rod pivots with respect to the fore-stock, and for the transmission component when collapsed position, the power transmission shaft is close to the fore-stock.