CN205707120U

CN205707120U - Collapsible straight line turns bicycle

Info

Publication number: CN205707120U
Application number: CN201620171222.4U
Authority: CN
Inventors: 刘新广
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-08
Filing date: 2016-03-08
Publication date: 2016-11-23
Anticipated expiration: 2026-03-08

Abstract

Collapsible straight line turns bicycle: wooden fork joint group triangularity vehicle frame after cant beam, the wooden fork that retreads, level.The front end of vehicle frame is fixed with pipe shell.Front truck wooden fork top, stretcher cleat, coupling bar bottom contact with hinge and ball in pipe shell；Coupling bar is coupled by folding joint with the push-pull bar of band handlebar, and stretcher cleat forms push-and-pull lever with push-pull bar；Front vehicle wheel is arranged in front truck wooden fork.Rear wheel, left and right one-way clutch wheel is coaxially mounted to after level in wooden fork.The gear ring that upper and lower driving rack is taken turns with left and right one-way clutch respectively is made into engaged transmission.The left end of upper and lower driving rack couples with the slide block on wooden fork front portion slide bar after level, and right-hand member couples with yoke plate.The front end of connecting rod is hinged with the pivoted housing being arranged on coupling bar top, and rear end is hinged with yoke plate.After connecting rod, cant beam, level, all there is folding joint wooden fork front portion.Vehicle seat height adjusting and front and back.Pedal, hand push tie-bar bar, make Herba Plantaginis row by connecting rod, slide block tooth bar gear ring transmission.Twist handle to realize turning to.

Description

Collapsible straight line turns bicycle

Technical field

This utility model relates to bike tech, and a kind of collapsible straight line turns bicycle.

Background technology

Existing of all kinds, big and small bicycle, is mostly pedal chain wheel drive, the only half-turn acting of pedal one circle, so driving force is little, runs into ramp, and people exerts oneself limited, and speed is the slowest.Existing bicycle is it occur frequently that take off chain and card chain fault.Existing rear wheel drive bicycle, when people rides, upper body must lean forward or straight elevator, the most uncomfortable fatiguability.Existing multiple folding bike, but the most collapsible efficient straight line turns bicycle and does not the most find.

Summary of the invention

This utility model, in order to overcome the drawbacks described above of existing bicycle, designs a kind of collapsible straight line and turns bicycle, comfortable indefatigability of riding, accelerate fast, speed fast, ramp is exercised to power big, hand-foot linked more body-building.

This utility model is realized by following technical proposals.

As Fig. 3 shows, pipe shell 3 is made up of cylindrical tube and upper cover, connection of going to the bottom, described on be stamped an elongate holes 3-1, the length direction of elongate holes 3-1 both overlapped with the radial direction of upper cover, consistent with vehicle commander direction again；As Fig. 2 shows, pipe shell 3 has a pair symmetrical radial indentation 3-2；Ball 48 is placed in pipe shell 3, and is all made into is rotatably assorted with the inner circle of pipe shell 3, the lower plane of the upper cover of pipe shell 3, the upper plane gone to the bottom of pipe shell 3.

As Fig. 1 shows, front vehicle wheel 1 is arranged in front wooden fork 2, and wheel 1 is general expression wheel or hub motor type wheel (being also built-in motor formula wheel)；As Fig. 3 shows, the upper end of front wooden fork 2 is gone to the bottom in insertion pipe shell 3 by pipe shell 3, and front wooden fork 2 is in going to the bottom to be made into and being rotatably assorted of cylindrical among the going to the bottom of pipe shell 3 and pipe shell 3, and the upper end of front wooden fork 2 is fixed with the bottom of ball 48.

As Fig. 2 shows, axle 47 passes radially through radial indentation 3-2 and the ball 48 of pipe shell 3, and axle 47 is made into ball 48 and is rotatably assorted, and axle 47 is positioned over radial indentation 3-2；No. one is coupled at axle 47 cylindrical Catch 47-3, No. two catch 47-4, the two catch relatively contacts the cylindrical of pipe shell 3 with pipe shell 3 both sides and can trackslip by pipe shell 3 relatively；A left side (defining by Herba Plantaginis line direction) circular arc slide plate 47-1, right circular arc slide plate 47-2 is connect respectively at the two ends of axle 47, the chute of the front end of the left branch 4-1 of stretcher cleat 4 is made into left circular arc slide plate 47-1 and is rotatably assorted, and the chute of the front end of the right branch 4-2 of stretcher cleat 4 is made into right circular arc slide plate 47-2 and is rotatably assorted；Left foot pedals 44, right pedal 46 is separately mounted to the left side at stretcher cleat 4 rear portion, right side, and left foot pedals 44, right pedal 46 is all with the cingulum of adjustable-tightness.

As Fig. 3 shows, the lower end of coupling bar 5 passes sequentially through the cylindrical of breach on the elongate holes 3-1 of the upper cover of pipe shell 3, ball 48 and axle 47 and fixes, coupling bar 5 can in elongate holes 3-1 fore-aft travel, can rotate again.

As Fig. 1, Fig. 4 show, pivoted housing 7 is arranged on cylindrical and land in the middle part of coupling bar 5 with a nut 5-1, and in the middle part of pivoted housing 7 and coupling bar 5, cylindrical is made into and is rotatably assorted.

As Fig. 1 shows.Laterally handlebar 12 is bound up on push-pull bar 11 head；The top of coupling bar 5 and the bottom of push-pull bar 11 connect with a joint 10.The schematic enlarged-scale view in a number joint 10 such as Fig. 9 shows, the top of coupling bar 5 is inserted to be made in branch 10-1 and is rotatably assorted, and joins by a pin 10-3 hinge, and No. two nut 10-2 twist-ons are at one of a pin 10-3；In terms of Fig. 9, right bayonet lock 10-5a inserts the hole nest on the right of branch 10-1 bottom, the left end hemisphere of right bayonet lock 10-5a snaps in the hemispherical nest on the right of coupling bar 5, right spring 10-6a, right plug screw 10-4a are enclosed within the right part cylindrical of right bayonet lock 10-5a being made into successively be slidably matched, the nest thread connection of right plug screw 10-4a and branch 10-1 bottom.The hole nest assembly relation on left bayonet lock 10-5b, left spring 10-6b, left plug screw 10-4b and the left side, branch 10-1 bottom is symmetrical in the hole nest on the right of right bayonet lock 10-5a, right spring 10-6a, right plug screw 10-4a and branch 10-1 bottom.

As Fig. 1 shows, after upper cant beam 16, No. two joints 43, lower inclined beams 6, retread wooden fork 30, level, wooden fork 40,45, No. three joints 42 of horizontal beam couple composition triangle frame.Lower inclined beam 6 lower end and horizontal beam 45 front end are bound up on pipe shell 3 cylindrical.The schematic enlarged-scale view in No. two joints 43 such as Figure 12 shows, a company The right flank of part 43-1 connects with the left side of upper cant beam 16, No. two even the left surface of part 43-5 and the right side of lower inclined beam 6 connect, the lower plane of a number company part 43-1 is placed in the upper plane of No. two company part 43-5, the extended line of centrage making cant beam 16 overlaps with the centrage of lower inclined beam 6, and with No. two pin 43-4 hinge connection, No. three nut 43-6 twist-ons are in the following of No. two pin 43-4；Upper bayonet lock 43-2 inserts the hole nest of a company part 43-1, the lower end hemisphere of upper bayonet lock 43-2 snaps in the hemispherical nest of No. two company part 43-5, upper spring 43-10, upper plug screw 43-3 are enclosed within the top cylindrical of upper bayonet lock 43-2 being made into successively be slidably matched, the nest thread connection of upper plug screw 43-3 and No. one even part 43-1；Lower bayonet lock 43-8 inserts the hole nest of No. two company part 43-5, the upper end hemisphere of lower bayonet lock 43-8 snaps in the hemispherical nest of a company part 43-1, lower spring 43-9, lower plug screw 43-7 are enclosed within the bottom cylindrical of lower bayonet lock 43-8 being made into successively be slidably matched, the nest thread connection of lower plug screw 43-7 and No. two even part 43-5.The schematic enlarged-scale view in No. three joints 42 such as Figure 11 shows, after level, wooden fork 40 anterior inserts to be made in the branch of horizontal beam 45 rear portion and be rotatably assorted, and joins by No. three pin 42-2 hinges, and No. four nut 42-3 twist-ons are in the following of No. three pin 42-2；Pin 42-1 is slidably matched through the front portion being made into of wooden fork 40 after horizontal beam 45 rear portion branch and level.The front lower end of lower inclined beam 6, horizontal beam 45 front end all cylindricals with pipe shell 3 are fixed, and horizontal beam 45 is on the oblique bottom of stretcher cleat 4.

As Fig. 1 shows, connecting female vertical tube 26 on the summit of described triangle frame, vertical screw 25 is inserted vertical tube 26 and couples with threaded engagement.Fix below the upper surface of vertical screw 25 and bracket 23.Front end has the right-hand member of the horizontal screw bolt 17 of handwheel to sequentially pass through screw in the left flap of bracket 23, slide block 19, the right flap of bracket 23, then the upper end nut 24 of band, horizontal screw bolt 17 and bracket 23 are made into and are rotatably assorted and are made into threaded engagement with slide block 19, and slide block 19 is made into bracket 23 and is slidably matched.Being fixed on above slide block 19 below vehicle seat 18, vehicle seat 18 is with vibration absorber.Backrest 21 and vehicle seat 18 hinge 20 couple, and runner 22 is fixed on one end of hinge 20.

As Fig. 1 shows, luggage carrier 28 is separately fixed at the right side of the wooden fork 30 that retreads (defining by Fig. 8) wooden fork branch 30-1, the bottom of a left side (defining by Fig. 8) wooden fork branch 30-2 with left and right two poles 29.If front vehicle wheel 1 is hub motor type wheel, battery and controller 27 being placed in luggage carrier 28, control knob is arranged on handlebar 12 and (does not draws in figure), and battery is electrically connected with the controller, and front vehicle wheel 1, described control knob are all electrically connected with the controller.Sole 45-1 is put on horizontal beam 45.

As Fig. 8 shows, described collapsible straight line turns the back axle 38 of bicycle and sequentially passes through the center of left driven pulley 37b-1 of the right one-way clutch wheel center of right driven pulley 37a-1 of 37a, the center of rear wheel 31 and left one-way clutch wheel 37b and fix with them.Left one-way clutch wheel 37b is made up of left driven pulley 37b-1 and left gear ring 37b-2, and right one-way clutch wheel 37a is made up of right driven pulley 37a-1 and right gear ring 37a-2.Left one-way clutch wheel 37b, the structure of right one-way clutch wheel 37a and operation principle are with traditional freewheel clutch, and its technology is ripe (flywheel of the most existing bicycle, unilateral bearing) already, is not repeated herein.In terms of Fig. 1, left one-way clutch wheel 37b and right one-way clutch wheel 37a, when rotating counterclockwise, could combine rotation with back axle 38；And left one-way clutch wheel 37b and right one-way clutch wheel 37a is when rotating clockwise, departs from back axle 38 and can only trackslip.Left gear ring 37b-2 and upper rack 32 are made into engaged transmission, and right gear ring 37a-2 and lower tooth bar 36 are made into engaged transmission.

As Fig. 8 shows, after the right wooden fork branch 30-1 of wooden fork 30, the level of retreading, the right wooden fork branch 40-3 of wooden fork 40 is all installed on the right part of back axle 38 with right bearing 39a, and after the left wooden fork branch 30-2 of the wooden fork 30 that retreads, level, the left wooden fork branch 40-24 of wooden fork 40 is all installed on the left part of back axle 38 with left bearing 39b.

As Fig. 1, Fig. 5 show, slide plate 41 is enclosed within the anterior slide bar outer peripheral face of wooden fork 40 after level, and is made into and is slidably matched, the front limit ring 40-1 and rear spacing ring 40-2 of restricted slide plate 41 on wooden fork 40 after level；The front end of upper rack 32 and lower tooth bar 36 is fixed on the right side (in terms of Fig. 1) of slide plate 41, and in terms of Fig. 5, upper rack 32 is in the upper right corner of slide plate 41, and lower tooth bar 36 is in the lower left corner of slide plate 41.As Fig. 1 shows, the rear end of upper rack 32 and lower tooth bar 36 is fixed on the left side of yoke plate 33.

As Fig. 1 shows, No. four joint 14a are connected into a connecting rod a bar 13a and No. two bar 15a.The schematic enlarged-scale view of No. four joint 14a such as Figure 10 shows, No. three even the left surface of part 14a-1 and the right side of a bar 13a connect, No. four even the right flank of part 14a-7 and the left side of No. two bar 15a connect, the lower plane of No. three company part 14a-1 is placed in the upper plane of No. four company part 14a-7, the extended line of the centrage of a bar 13a and the centrage of No. two bar 15a is made to overlap, and with No. four pin 14a-5 hinge connection, No. five nut 14a-6 twist-ons are in the following of No. four pin 14a-5；Bayonet lock 14a-2 inserts the hole nest of No. three company part 14a-1, the lower end hemisphere of bayonet lock 14a-2 snaps in the hemispherical nest of No. four company part 14a-7, spring 14a-3, plug screw 14a-4 are enclosed within the bottom cylindrical of bayonet lock 14a-2 being made into successively be slidably matched, the nest thread connection of plug screw 14a-4 and No. three even part 14a-1.

As Fig. 7 shows, No. five joint 14b are connected into No. two connecting rods No. three bar 13b and No. four bar 15b.The structure of No. five joint 14b is identical with No. four joint 14a's, No. five joint 14b and No. three bar 13b and the connecting relation of No. four bar 15b, is also same as a No. four joint 14a's and bar 13a and No. two bar 15a.

As Fig. 1, Fig. 4 show, the front end of a number bar 13a is articulated with the right side of the cylindrical of pivoted housing 7 with a spiral pin 8a and No. six nut 9a, the front end of No. three bar 13b is also articulated with the left side of the cylindrical of pivoted housing 7 with No. two spiral pin 8b and No. seven nut 9b, and a bar 13a and No. three bar 13b is symmetrical in the axis of pivoted housing 7.

As Fig. 1, Fig. 6 show, No. three spiral pin 35a and No. eight nut 34a are articulated with the right side of yoke plate 33 in the rear end of No. two bar 15a, the rear end of No. four bar 15b is articulated with the left side of yoke plate 33 with No. four spiral pin 35b and No. nine nut 34b, and No. two bar 15a and No. four bar 15b are symmetrical in the vertical center line of yoke plate 33.

The protection case (not drawing in figure) of one-way clutch right, the left wheel 37b of a described connecting rod, No. two connecting rods, upper rack 32, lower tooth bar 36, yoke plate 33, right one-way clutch wheel 37a is set; prevent them from when moving, meeting people or thing, also can prevent foreign body from dropping to they upper impacts and normally ride.Described protection case is fixed on described triangle frame.

The brake gear (in figure do not draw) identical with existing bicycle structure and principle is set.

As Fig. 1 shows, when people rides, left and right foot is pedaled left foot respectively and is pedaled 44, pedals right pedal 46 the most forward, and both hands are held handlebar 12 and pulled back simultaneously, and axle 47 rotates (see Fig. 2), and at this moment ball 48 rotates in pipe shell 3.So, two connecting rods will promote yoke plate 33 together with upper rack 32, lower tooth bar 26 rearward movement.Driving rack 32 is rubbed the left gear ring 37b-2 the most left driven pulley 37a-1 of the one-way clutch wheel 37b that turns left with the hands and is trackslipped clockwise, and back axle 38 and rear wheel 31 will not be driven to rotate.And underdrive tooth bar 36 is rubbed the one-way clutch wheel 37a that turns left with the hands and rotated counterclockwise, driving rear wheel 31 to rotate counterclockwise, car is to moving ahead simultaneously.Hold handlebar 12 when both hands to push away forward, if left foot pedals 44, cingulum button on right pedal 46 people's foot, both feet pull back, so use both hands and feet, make two connecting rods pull to travel forward together with upper rack 32, lower tooth bar 26, easily deducing, only upper rack 32 draws the one-way clutch wheel 37b band counterclockwise that turns left to turn rear wheel 31, and car continues to moving ahead.The maximum magnitude that tooth bar seesaws is front limit ring 40-1 and the distance of rear spacing ring 40-2.Foot can be parked in put and have a rest on sole 31, only pulls driving and rides.

Either simultaneously drive in above-mentioned trick and ride or the most with the hands driving, ride when turning to, all as riding existing traditional bicycle, rotate handlebar 12 with hands and realize.As Fig. 2 shows, during turning, axle 47 rotates in the level in breach 3-2 (saying relative to Fig. 1) of pipe shell 3, be connected in axle 47 left circular arc slide plate 47-1, right circular arc slide plate 47-2 respectively the chute of left branch 4-1 of stretcher cleat 4, the right branch 4-2 of stretcher cleat 4 chute in trackslip, stretcher cleat 4 always will not swing, and does not affect normally pedaling of both feet and draws left foot to pedal 44 and the motion of right pedal 46.

If front vehicle wheel 1 is electric wheel, electric riding pattern can be used.At this moment, trick all stops driving, and tooth bar is only in one-way clutch wheel spike.

Rotating vehicle seat makes screw rod 25 rotate in vertical tube 26, the height of adjustable vehicle seat.Rotate the handwheel of horizontal screw bolt 17, position before and after adjustable vehicle seat.Rotating wheel 22, the angle of adjustable backrest 21.

When car is parked, in order to save space, as Fig. 1, Fig. 9 show, first pull push-pull bar 11 to the person of seeing, force the hemispherical head portions of bayonet lock 10-5a and bayonet lock 10-5b to skid off coupling bar 5, continue to pull push-pull bar 11 so that it is fold to coupling bar 5.Then, extract pin 42-1 (as Fig. 1, Figure 11 show), switching coupling bar 5 switching from left to right, drive a bar 13a, No. two bar 13b, lower inclined beam 6, horizontal beams 45 to fold to car rear portion around respective joint.Finally, backrest 21 is folded into vehicle seat 18.When opening, against said sequence and operating, each bayonet lock restores position under the action of the spring, and inserts pin 42-1 to original position.

This utility model beneficial effect:

1. standard bicycle, alone pedal turns, and foot is often pedaled the only half-turn that turns around and can be had an effect.And described collapsible straight line turns bicycle changes the mode of riding that traditional bicycle pedal turns, use both hands and feet, and trick moves back and forth and all can have an effect, driving force ratio standard bicycle much bigger, efficiency is high, so much higher acceleration and riding speed can be obtained than standard bicycle, efficiency is high, and climbing capacity is more much better than than standard bicycle.Use both hands and feet also more more preferable body-building than standard bicycle.

2, described collapsible straight line turns the pedal of bicycle in vehicle seat front lower place, the most micro-the most comfortable against the backrest of vehicle seat to layback when people rides, and the long period rides also will not be tired.

3, described collapsible straight line turns bicycle and there is not to fall chain problem.

4, described collapsible straight line turns bicycle and can fold, and can save parking space.

5, described collapsible straight line turns the vehicle seat of bicycle and can adjust height and front and back position, and the people adapting to different height uses.

Accompanying drawing explanation

1. Fig. 1 is the structural representation that described collapsible straight line turns bicycle；

2. Fig. 2 is the A-A cutaway view Amplified image of Fig. 1；

3. Fig. 3 is the B-B sectional view of Fig. 2；

4. Fig. 4 is the C-C profile of Fig. 1；

5. Fig. 5 is the D-D profile of Fig. 1；

6. Fig. 6 is the E-E profile of Fig. 1；

7. Fig. 7 be Fig. 1 G to partial view；

8. Fig. 8 is the F-F profile of Fig. 1；

9. the schematic enlarged-scale view in a joint 10 during Fig. 9 is Fig. 1；

10. the schematic enlarged-scale view of No. four joint 14a during Figure 10 is Fig. 1；

11. Figure 11 are the schematic enlarged-scale view in No. three joints 42 in Fig. 1；

12. Figure 12 are the schematic enlarged-scale view in No. two joints 43 in Fig. 1.

Detailed description of the invention

Embodiment:

As Fig. 2 shows, axle 47 passes radially through radial indentation 3-2 and the ball 48 of pipe shell 3, and axle 47 is made into ball 48 and is rotatably assorted, and axle 47 is positioned over radial indentation 3-2；Coupling catch 47-3, No. two catch 47-4 at axle 47 cylindrical, the two catch relatively contacts the cylindrical of pipe shell 3 with pipe shell 3 both sides and can trackslip by pipe shell 3 relatively；A left side (defining by Herba Plantaginis line direction) circular arc slide plate 47-1, right circular arc slide plate 47-2 is connect respectively at the two ends of axle 47, the chute of the front end of the left branch 4-1 of stretcher cleat 4 is made into left circular arc slide plate 47-1 and is rotatably assorted, and the chute of the front end of the right branch 4-2 of stretcher cleat 4 is made into right circular arc slide plate 47-2 and is rotatably assorted；Left foot pedals 44, right pedal 46 is separately mounted to the left side at stretcher cleat 4 rear portion, right side, and left foot pedals 44, right pedal 46 is all with the cingulum of adjustable-tightness.

As Fig. 1 shows, after upper cant beam 16, No. two joints 43, lower inclined beams 6, retread wooden fork 30, level, wooden fork 40,45, No. three joints 42 of horizontal beam couple composition triangle frame.Lower inclined beam 6 lower end and horizontal beam 45 front end are bound up on pipe shell 3 cylindrical.The schematic enlarged-scale view in No. two joints 43 such as Figure 12 shows, No. one even the right flank of part 43-1 and the left side of upper cant beam 16 connect, the left surface of No. two company part 43-5 connects with the right side of lower inclined beam 6, and the lower plane of a company part 43-1 is placed in the upper plane of No. two company part 43-5 The extended line of centrage making cant beam 16 overlaps with the centrage of lower inclined beam 6, and with No. two pin 43-34 hinge connection, and No. three nut 43-6 twist-ons are in the following of No. two pin 43-34；Upper bayonet lock 43-2 inserts the hole nest of a company part 43-1, the lower end hemisphere of upper bayonet lock 43-2 snaps in the hemispherical nest of No. two company part 43-5, upper spring 43-10, upper plug screw 43-3 are enclosed within the top cylindrical of upper bayonet lock 43-2 being made into successively be slidably matched, the nest thread connection of upper plug screw 43-3 and No. one even part 43-1；Lower bayonet lock 43-8 inserts the hole nest of No. two company part 43-5, the upper end hemisphere of lower bayonet lock 43-8 snaps in the hemispherical nest of a company part 43-1, lower spring 43-9, lower plug screw 43-7 are enclosed within the bottom cylindrical of lower bayonet lock 43-8 being made into successively be slidably matched, the nest thread connection of lower plug screw 43-7 and No. two even part 43-5.The schematic enlarged-scale view in No. three joints 42 such as Figure 11 shows, after level, wooden fork 40 anterior inserts to be made in the branch of horizontal beam 45 rear portion and be rotatably assorted, and joins by No. three pin 42-2 hinges, and No. four nut 42-3 twist-ons are in the following of No. three pin 42-2；Pin 42-1 is slidably matched through the front portion being made into of wooden fork 40 after horizontal beam 45 rear portion branch and level.The front lower end of lower inclined beam 6, horizontal beam 45 front end all cylindricals with pipe shell 3 are fixed, and horizontal beam 45 is on the oblique bottom of stretcher cleat 4.

As Fig. 8 shows, after the right wooden fork branch 30-1 of wooden fork 30, the level of retreading, the right wooden fork branch 40-3 of wooden fork 40 is all installed on the right part of back axle 38 with right bearing 39a, and after the left wooden fork branch 30-2 of the wooden fork 30 that retreads, level, the left wooden fork branch 40-4 of wooden fork 40 is all installed on the left part of back axle 38 with left bearing 39b.

Claims

The most collapsible straight line turns bicycle, it is characterized in that:

Pipe shell (3) is made up of cylindrical tube and upper cover, connection of going to the bottom, described on be stamped an elongate holes (3-1), the length direction of elongate holes (3-1) both overlapped with the radial direction of upper cover, consistent with vehicle commander direction again；Pipe shell (3) has a pair symmetrical radial indentation (3-2)；Ball (48) is placed in pipe shell (3), and is all made into is rotatably assorted with the inner circle of pipe shell (3), the lower plane of upper cover of pipe shell (3), the upper plane gone to the bottom of pipe shell (3)；

Front vehicle wheel (1) is arranged in front wooden fork (2), and wheel (1) is general expression wheel or hub motor type wheel；The upper end of front wooden fork (2) is interior by insertion pipe shell (3) of going to the bottom of pipe shell (3), front wooden fork (2) is in going to the bottom to be made into and being rotatably assorted of cylindrical among the going to the bottom of pipe shell (3) and pipe shell (3), and the bottom of the upper end of front wooden fork (2) and ball (48) is fixed；

Axle (47) passes radially through radial indentation (3-2) and the ball (48) of pipe shell (3), axle (47) is made into ball (48) and is rotatably assorted, and axle (47) is positioned over radial indentation (3-2)；Coupling catch (47-3), No. two catch (47-4) at axle (47) cylindrical, the two catch relatively contacts the cylindrical of pipe shell (3) with pipe shell (3) both sides and can trackslip by pipe shell (3) relatively；Left circular arc slide plate (47-1), right circular arc slide plate (47-2) is connect respectively at the two ends of axle (47), the chute of the front end of the left branch (4-1) of stretcher cleat (4) is made into left circular arc slide plate (47-1) and is rotatably assorted, and the chute of the front end of the right branch (4-2) of stretcher cleat (4) is made into right circular arc slide plate (47-2) and is rotatably assorted；Left foot pedals (44), right pedal (46) is separately mounted to the left side at stretcher cleat (4) rear portion, right side, and left foot pedals (44), right pedal (46) all with the cingulum of adjustable-tightness；

The lower end of coupling bar (5) passes sequentially through the cylindrical of breach on the elongate holes (3-1) of the upper cover of pipe shell (3), ball (48) and axle (47) and fixes, coupling bar (5) can in elongate holes (3-1) fore-aft travel, can rotate again；

Pivoted housing (7) is arranged on coupling bar (5) middle part cylindrical and land with a nut (5-1), and pivoted housing (7) is made into coupling bar (5) middle part cylindrical and is rotatably assorted；

Laterally handlebar (12) is bound up on push-pull bar (11) head；The top of coupling bar (5) and the bottom of push-pull bar (11) connect with a joint (10)；The top of coupling bar (5) is inserted to be made in branch (10-1) and is rotatably assorted, and joins by pin (10-3) hinge, and No. two nut (10-2) twist-ons are at one of a pin (10-3)；Right bayonet lock (10-5a) inserts the hole nest on the right of branch (10-1) bottom, the left end hemisphere of right bayonet lock (10-5a) snaps in the hemispherical nest on the right of coupling bar (5), right spring (10-6a), right plug screw (10-4a) are enclosed within the right part cylindrical of right bayonet lock (10-5a) being made into successively be slidably matched, the nest thread connection of right plug screw (10-4a) and branch (10-1) bottom；The hole nest assembly relation on left bayonet lock (10-5b), left spring (10-6b), left plug screw (10-4b) and branch (10-1) left side, bottom is symmetrical in the hole nest on the right of right bayonet lock (10-5a), right spring (10-6a), right plug screw (10-4a) and branch (10-1) bottom；

After upper cant beam (16), No. two joints (43), lower inclined beam (6), the wooden fork that retreads (30), levels, wooden fork (40), horizontal beam (45), No. three joints (42) couple composition triangle frame；Lower inclined beam (6) lower end and horizontal beam (45) front end are bound up on pipe shell (3) cylindrical；No. one even the right flank of part (43-1) and the left side of upper cant beam (16) connect, No. two even the left surface of part (43-5) and the right side of lower inclined beam (6) connect, the lower plane of number company's part (43-1) is placed in the upper plane of No. two companies' part (43-5), the extended line of centrage making cant beam (16) overlaps with the centrage of lower inclined beam (6), and with No. two pins (43-4) hinge connection, No. three nut (43-6) twist-ons are in the following of No. two pins (43-4)；Upper bayonet lock (43-2) inserts the hole nest of company's part (43-1), the lower end hemisphere of upper bayonet lock (43-2) snaps in the hemispherical nest of No. two companies' part (43-5), upper spring (43-10), upper plug screw (43-3) are enclosed within the top cylindrical of upper bayonet lock (43-2) being made into successively be slidably matched, the nest thread connection of upper plug screw (43-3) and an even part (43-1)；Lower bayonet lock (43-8) inserts the hole nest of No. two companies' part (43-5), the upper end hemisphere of lower bayonet lock (43-8) snaps in the hemispherical nest of company's part (43-1), lower spring (43-9), lower plug screw (43-7) are enclosed within the bottom cylindrical of lower bayonet lock (43-8) being made into successively be slidably matched, the nest thread connection of lower plug screw (43-7) and No. two even parts (43-5)；After level, anterior insertion horizontal beam (45) the rear portion branch of wooden fork (40) is made into and is rotatably assorted, and with No. three pins (42-2) hinge connection, No. four nut (42-3) twist-ons are in the following of No. three pins (42-2)；Pin (42-1) is slidably matched through the front portion being made into of wooden fork (40) after horizontal beam (45) rear portion branch and level；The front lower end of lower inclined beam (6), horizontal beam (45) front end all cylindricals with pipe shell (3) are fixed, and horizontal beam (45) is on stretcher cleat (4) tiltedly bottom；

Connect female vertical tube (26) on the summit of described triangle frame, vertical screw (25) is inserted vertical tube (26) and couples with threaded engagement；Fix below the upper surface of vertical screw (25) and bracket (23)；Front end has the right-hand member of the horizontal screw bolt (17) of handwheel to sequentially pass through screw, bracket (23) right flap in bracket (23) left flap, slide block (19), then the upper end nut (24) of band, horizontal screw bolt (17) and bracket (23) are made into and are rotatably assorted and are made into threaded engagement with slide block (19), and slide block (19) is made into bracket (23) and is slidably matched；Being fixed on above slide block (19) below vehicle seat (18), vehicle seat (18) is with vibration absorber；Backrest (21) and vehicle seat (18) hinge (20) couple, and runner (22) is fixed on one end of hinge (20)；

Luggage carrier (28) is separately fixed at the right wooden fork branch (30-1) of the wooden fork that retreads (30), the bottom of left wooden fork branch (30-2) with left and right two poles (29)；If front vehicle wheel (1) is hub motor type wheel, battery and controller (27) are placed in luggage carrier (28), control knob is arranged on handlebar (12), battery is electrically connected with the controller, and front vehicle wheel (1), described control knob are all electrically connected with the controller；Sole (45-1) is put on horizontal beam (45)；

Back axle (38) sequentially passes through the center of the left driven pulley (37b-1) of the right one-way clutch wheel center of right driven pulley (37a-1) of (37a), the center of rear wheel (31) and left one-way clutch wheel (37b) and fixes with them；Left one-way clutch wheel (37b) is made up of left driven pulley (37b-1) and left gear ring (37b-2), and right one-way clutch wheel (37a) is made up of right driven pulley (37a-1) and right gear ring (37a-2)；Left one-way clutch wheel (37b) and right one-way clutch take turns (37a) when rotating counterclockwise, could combine rotation with back axle (38)；And left one-way clutch wheel (37b) and right one-way clutch wheel (37a) are when rotating clockwise, depart from back axle (38) and can only trackslip；Left gear ring (37) b-2 and upper rack (32) are made into engaged transmission, and right gear ring (37a-2) and lower tooth bar (36) are made into engaged transmission；

After the right wooden fork branch (30-1) of wooden fork (30), the level of retreading, the right wooden fork branch (40-3) of wooden fork (40) is all installed on the right part of back axle (38) with right bearing (39a), and after the left wooden fork branch (30-2) of the wooden fork that retreads (30), level, the left wooden fork branch (40-4) of wooden fork (40) is all installed on the left part of back axle (38) with left bearing (39b)；

Slide plate (41) is enclosed within the anterior slide bar outer peripheral face of wooden fork (40) after level, and being made into and be slidably matched, after level, wooden fork (40) goes up front limit ring (40-1) and the rear spacing ring (40-2) of restricted slide plate (41)；The front end of upper rack (32) and lower tooth bar (36) is fixed on the right side of slide plate (41), upper rack (32) is in the upper right corner of slide plate (41), and lower tooth bar (36) is in the lower left corner of slide plate (41)；The rear end of upper rack (32) and lower tooth bar (36) is fixed on the left side of yoke plate (33)；

No. four joints (14a) are connected into a connecting rod a bar (13a) and No. two bars (15a)；No. three even the left surface of part (14a-1) and the right side of a bar (13a) connect, No. four even the right flank of part (14a-7) and the left side of No. two bars (15a) connect, the lower plane of No. three companies' part (14a-1) is placed in the upper plane of No. four companies' part (14a-7), the extended line of the centrage of a bar (13a) and the centrage of No. two bars (15a) is made to overlap, and with No. four pins (14a-5) hinge connection, No. five nut (14a-6) twist-ons are in the following of No. four pins (14a-5)；Bayonet lock (14a-2) inserts the hole nest of No. three companies' part (14a-1), the lower end hemisphere of bayonet lock (14a-2) snaps in the hemispherical nest of No. four companies' part (14a-7), spring (14a-3), plug screw (14a-4) are enclosed within the bottom cylindrical of bayonet lock (14a-2) being made into successively be slidably matched, the nest thread connection of plug screw (14a-4) and No. three even part (14) a-1；

No. five joint (14) b are connected into No. two connecting rods No. three bars (13b) and No. four bars (15b)；The structure of No. five joints (14b) is identical with No. four joints (14a), No. five joints (14b) and No. three bars (13b) and the connecting relation of No. four bars (15b), be also same as No. four joints (14a) and a bar (13a) and No. two bars (15a)；

The front end of a number bar (13a) is articulated with the right side of the cylindrical of pivoted housing (7) with a spiral pin (8a) and No. six nuts (9a), the front end of No. three bars (13b) is also articulated with the left side of the cylindrical of pivoted housing (7) with No. two spiral pins (8b) and No. seven nuts (9b), and bar (13a) and No. three bars (13b) are symmetrical in the axis of pivoted housing (7)；

The rear end of No. two bars (15a) is articulated with the right side of yoke plate (33) with No. three spiral pins (35a) and No. eight nuts (34a), the rear end of No. four bars (15b) is articulated with the left side of yoke plate (33) with No. four spiral pins (35b) and No. nine nuts (34b), and No. two bars (15a) and No. four bars (15b) are symmetrical in the vertical center line of yoke plate (33)；

Arranging the protection case of the one-way clutch right, left wheel (37b) of a described connecting rod, No. two connecting rods, upper rack (32), lower tooth bar (36), yoke plate (33), right one-way clutch wheel (37a), described protection case is fixed on described triangle frame；

Brake gear is set.