CN1958385B - Carryable folding bicycle with variable speed of medial axis - Google Patents

Abstract

A portable and foldable bicycle with speed-varying central axle is composed of frame divided into front, middle and back segments, vibration damping folder for connecting said front segment with middle one, internal speed variator in central axle tube, reinforced saddle, back vibration damper, front and back wheels, steering mechanism consisting of two-joint folder, handle-bar and vibration damping fork, and drive mechanism consisting of foldable crank, internal speed variator, and chain-gear set.

Description

The axis speed change is carried folding bicycle

Technical field the present invention relates to a kind of bicycle, particularly relates to a kind of axis speed change and carries folding bicycle.

The known folding bicycle of background technology mainly is to carry out laterally folded with elasticity bolt, the folding amplitude of longitudinal folding bicycle is also less, derailleur more is not easy to fold, though saddle liftable, handlebar is liftable and collapsible also, but described present situation is unfavorable for promptly folding bicycle being folded into littler taking up room, and also is not easy to carry.

Summary of the invention the present invention has overcome deficiency of the prior art, provides a kind of can not only be rapidly folding easily and be convenient to the axis speed change that push-and-pull moves and deposit and carry folding bicycle.In order to solve the technical matters of above-mentioned existence, the present invention adopts following technical proposals: a kind of axis speed change is carried folding bicycle, comprise vehicle frame, rudder steering mechanism and driver train etc., described vehicle frame is by the damping folder leading portion vehicle frame to be connected with the stage casing vehicle frame, in the axis sleeve pipe that vehicle frame bottom, stage casing is provided with, pack into and be fixed with the internal speed-changing central siphon of rear flank section vehicle frame, vehicle frame top, stage casing is provided with adapter shaft, also be equipped with and strengthen thin body saddle, dress is strengthened bushing pipe in the seatpillar bottom of the thin body saddle of reinforcement, top is fixed with elasticity roof beam structure and plasticity elastic body injection molded saddle body, rear flank section vehicle frame also is provided with rear-axle tube and following adapter shaft, on, between the following adapter shaft rear flank bumper is housed.

Rudder steering mechanism is by the binodal folder handlebar to be connected with damping sidecar fork, and the damping sidecar portion of sticking is installed on the leading portion vehicle frame, and its lower end is fixed with slipper, preceding central siphon, on the preceding central siphon front vehicle wheel is installed.

Driver train is by flexible handle rotating middle shaft internal speed changer, again through chain gear, make rear axle tube rotate rear wheel, the flexible handle is divided into three arm of force medial axis handles and equal strength can be rolled over handle, the former middle part is provided with folder fin, the latter is provided with fixer, the axis internal speed changer is to increase speed-changing mechanism to realize speed change in acceleration mechanism, acceleration mechanism is fixing rocking arm and through the bearing fixing sun gear at the middle part of axle, internally toothed annulus is fixed in the shell, can go into power by the two ends of axle, realize quickening through rocking arm and planetary wheel center of turn gear drive sprocket wheel, speed-changing mechanism is to increase to pay sun gear and pay inner gear on sun gear and inner gear, increase bearing between large internal gear and pair inner gear and the shell, increase variable speed plate inside the shell, free-wheel clutch and change gear group are housed on the variable speed plate, realize speed change by variable speed plate control free-wheel clutch and change gear group.

Front vehicle wheel is to rear wheel and close foldingly, and the flexible handle makes pedal inwardly folding, and handlebar is folding to the drive side of rear wheel, and after folding the finishing, its thickness is the length of axis, and its width is the external diameter of wheel, and it highly is 1.618 times of width.

Compared with prior art the invention has the beneficial effects as follows, make the bicycle more economization that takes up room, help the improvement of environment, make the folding bicycle can brisk traveling, folding simply and open, be convenient to the push-and-pull walking and carry removing and carry, thereby improve the convenience degree of utilizing bicycle.

Description of drawings Fig. 1 carries the folding bicycle scheme drawing,

Fig. 2 is an axis internal speed changer scheme drawing,

Fig. 3 is a flexible handle scheme drawing

Fig. 4 is an intensive aspect saddle scheme drawing

Among the figure: 12 times deflecting plates of deflecting plate, 13 bolts, 14 standpipes, 15 upper conduits, 16 downcomers, 17 sidecars are pitched 18 air bags, 19 beams, 20 front axle tubes, 21 keep plates, 22 speed change handles, 23 bearings, 24 axles, 25 rocking arms and are taken turns 34 pairs of internal gears of 26 bearing 27 central gears, 28 planetary gear 29 planetary gear pins, 30 ring gear 33 pairs of central gears of 31 shells, 32 sprocket wheels, 35 change gear groups, 36 articulated slabs, 37 variable speed plates, 38 control holes, 39 breaker slots, 40 one-way clutch, 41 3 arm of force medial axis handles, 42 equal strength and can roll over handle 43 folder fins 44 fixators 45 seatpillars 46 and strengthen linings 47 saddle bodies 48 elasticity roof beams structure 49 supporting plates 50 on 8 binodal epimeres, 9 binodal hypomeres, the 10 folding sleeve pipes 11 of folding pulling shaft 1 elastic tube 2 folding spanners 3 axis sleeve pipes 4 internal speed-changing central siphons 5 rear-axle tubes 6 rotating shafts 7 binodal stage casings

The specific embodiment describes in further detail the present invention below in conjunction with the accompanying drawing and the specific embodiment:

Among Fig. 1, damping lock folder is as the attaching parts of leading portion vehicle frame and back segment vehicle frame, is folding pulling shaft 1 and spring tube 2 are packed in the tube-shaped joint of front and rear sections vehicle frame, is provided with fastening chimb outside the tube-shaped joint, folding spanner 3 is provided with the groove of cam, and is connected with folding pulling shaft 1 by pivot pin; When opening vehicle frame and closing folding spanner 3, cam produces pressure to tube-shaped joint, drawing folds 2 radial expansions of pulling shaft 1 elasticity of compression pipe, the tube-shaped joint of jam-packed front and rear sections vehicle frame internally, the groove of folding spanner 3 buckles into the fastening chimb in the tube-shaped joint outside simultaneously, thereby locking is folding, and this moment, the nose of cam was crossed pulling shaft axis generation self-locking.

The front end of leading portion vehicle frame is provided with preceding standpipe, and its rear end is provided with tube-shaped joint; Stage casing vehicle frame front end is provided with tube-shaped joint, and its underpart is provided with axis sleeve pipe 4, and its top is provided with saddle locker and last adapter shaft; There is internal speed-changing central siphon 5 front portion of rear flank section vehicle frame, and there are rear-axle tube 6, brake pipe 22 and following adapter shaft in its rear portion; Internal speed-changing central siphon 5 is packed in the axis sleeve pipe 4, and the rear flank bumper is housed between the upper and lower adapter shaft, and saddle tightens to be equipped with in the device strengthens thin body saddle; The thin body saddle of damping folder, leading portion vehicle frame, back segment vehicle frame, rear flank bumper and reinforcement Form vehicle frame.

The rear flank bumper is connected with last adapter shaft by outer tube, also has inner sleeve, is connected with following adapter shaft, and the inner sleeve outer tube of packing into is equipped with elastic body and air bag 19, and is provided with cushion blocking 20 between the inside and outside sleeve pipe.

Rudder steering mechanism is made up of handlebar, binodal folder, damping sidecar fork, preceding central siphon 21 and front vehicle wheel, the epimere of the lower end of handlebar and binodal folder is fixed, the upper end of the lower end of binodal folder and damping sidecar fork is fixed, preceding central siphon 21 is fixed on damping sidecar fork lower end, and front vehicle wheel is installed on the preceding central siphon 21.

The binodal folder has between 7, two rotating shafts of two rotating shafts binodal stage casing 8 is housed, and binodal epimere 9 and binodal hypomere 10 also are equipped with in upper and lower rotating shaft respectively, and binodal epimere and binodal hypomere all are provided with short and thick screw thread, and upper and lower short and thick screw thread screws in folding sleeve pipe 11 simultaneously; Outwarding winding during Foldable handlebar folds sleeve pipe 11, and carries on it, makes binodal stage casing 8 and binodal epimere 9 lose constraint, and handlebar will put in place according to the angle of two rotating shaft 7 defineds is folding.

The last deflecting plate 12 and the following deflecting plate 13 of damping sidecar fork are fastening by bolt 14, be assemblied on the preceding standpipe of leading portion vehicle frame by standpipe 15 simultaneously, be fixed with upper conduit 16 below the last deflecting plate 12, be fixed with downtake 17 below the following deflecting plate 13, central siphon 21 and slipper 22 before the lower end of sidecar fork 18 is fixed with, its top is encased in the downtake 17, among sidecar fork 18 and the upper conduit 16 elastic body and air bag 19 is housed, and is provided with cushion blocking 20.

Driver train is by pedal, collapsible crank rotating middle shaft internal speed changer, again through chain gear, is rotated by rear axle tube interlock rear wheel, and the axis internal speed changer is contained in the internal speed-changing central siphon 5, and rear axle tube is contained in the rear-axle tube 6.

Among Fig. 2, the axis internal speed changer is fixed with rocking arm 26 on axle 25, coaxial again going up is equipped with sun gear 28 through bearing 27, planetary wheel 29 is contained on the rocking arm 26 through planetary wheel pin 30, inner gear 31 shell 32 of packing into, shell 32 is fixed as one with internal speed-changing central siphon 5, and axle 25 can be gone into power by two ends, sun gear 28 was exerted oneself and is made sprocket wheel 33 quicken to rotate when inner gear 31 was fixed again, thereby made the folded bicycle of path wheel keep the low-hanging fruit of common car.

The present invention has increased speed changing effect for better practicality on the basis of low-hanging fruit, non-planetary wheel side at rocking arm 26 adds pair sun gear 34 and pays an inner gear 35, paying inner gear 35 is connected with inner gear 31, pay the bearing 24 of packing between inner gear 35 and inner gear 31 and the shell 32, pay sun gear 34 and pay two groups of above change gear groups 36 are housed between the inner gear 35, change gear group 36 has intermediate gear, forward gear and reverse gear, intermediate gear, the eccentric shaft of forward gear and reverse gear all is contained on the shell 32, there is articulated slab 37 to connect between the free-ended adjacent shaft of each eccentric shaft, variable speed plate 38 is contained in the side of change gear group, variable speed plate 38 is provided with control punch 39, the control intermediate gear, forward gear and reverse gear, make and pay inner gear 35 and inner gear 31 main storys or counter-rotating, also be provided with breaker slot 40 on the variable speed plate 38, brake the rotation of paying inner gear and inner gear by breaker slot 40 control free-wheel clutchs 41, the sprocket wheel speed change is rotated.

When being fixed on 23 of speed change handles on the variable speed plate 38 with middling speed, breaker slot 40 control free-wheel clutchs 41 are between the boss of paying inner gear 35 and shell 32, pair inner gear 35 and inner gear 31 are braked in shell 32, control control simultaneously 39, control intermediate gear, forward gear and the whole release the drives of reverse gear, be the acceleration rotary state of above-mentioned sprocket wheel 33 this moment, the middling speed of quite common car.When 23 of speed change handles and low speed, the also low speed of quite common car, non-acceleration rotary state for sprocket wheel 33, this moment, breaker slot 40 control free-wheel clutchs 41 were between the groove of paying inner gear 35 and shell 32, brake off is rotating in the shell 32 pair inner gear 35 and inner gear 31, simultaneously control punch 39, control intermediate gear and forward gear carry out transmission, make to pay inner gear 35 and inner gear 31 forward rotation.When 23 of speed change handles and high speed, the also high speed of quite common car, acceleration rotary state for sprocket wheel 33, this moment, breaker slot 40 control free-wheel clutchs 41 were also between the groove of paying inner gear 35 and shell 32, brake off is rotating in the shell 32 pair inner gear 35 and inner gear 31, simultaneously control punch 39, control intermediate gear, forward gear and reverse gear carry out transmission, make to pay inner gear 35 and inner gear 31 backward rotation.

Among Fig. 3, the flexible handle is divided into three arm of force medial axis handles 42 and equal strength can be rolled over the middle part of handle 43, three arm of force medial axis handles 42 and be provided with folder fin 44, and equal strength can be rolled over handle 43 and is installed on the folder fin 44, equal strength can be rolled over handle 43 and is provided with fixer 45, fixes with three arm of force medial axis handles 42 during folding putting in place; Equal strength can be rolled over the pedal end of handle 43 when stressed, its folded end produces moment simultaneously to the two ends of folder fin 44 and the tail end of three arm of force medial axis handles 42, the tail end of the two ends of folder fin 44 and three arm of force medial axis handles 42 forms three arm of forces and acts on the axis, has disperseed the stress of crank.

Among Fig. 4, strengthening thin body saddle is that dress in seatpillar 46 bottoms is strengthened bushing pipe 47, and saddle body 48 is by plasticity elastic body injection molded, packs in the saddle body 48 in elasticity roof beam structure 49 two ends of Pillar for saddle, the supporting plate 50 of Pillar for saddle is fixed on the seatpillar 46, and the fixing middle part of elasticity roof beam structure 49; The effect of being loaded, saddle body 48 are sunk and are produced and stretch, and the two ends of elasticity roof beam structure 49 are sunk by gravity and opposing stretches, and saddle body 48 sinks can contact the middle part of elastic beam.

Open folding spanner 3, make front vehicle wheel to rear wheel and close folding, outward winding and fold sleeve pipe 11, make handlebar folding to the drive side of rear wheel, but just push-and-pull walking this moment, needing the time is 3-6 second, is 1/5th degree of general laterally folded time, further takes up room less if desired, folding equal strength can be rolled over handle 43, reduce seatpillar 46, just can carry and remove and deposit, 1/4th degree that it takes up room and takes up room for general laterally folded bicycle this moment, after folding the finishing, its thickness is the length of axis, and its width is the external diameter of wheel, and it highly is 1.618 times of width.

Claims (1)

1. an axis speed change is carried folding bicycle, comprise vehicle frame, rudder steering mechanism and driver train, it is characterized in that, described vehicle frame is by the damping folder leading portion vehicle frame to be connected with the stage casing vehicle frame, in the axis sleeve pipe that vehicle frame bottom, stage casing is provided with, pack into and be fixed with the internal speed-changing central siphon of rear flank section vehicle frame, vehicle frame top, stage casing is provided with adapter shaft, also be equipped with and strengthen thin body saddle, dress is strengthened bushing pipe in the seatpillar bottom of the thin body saddle of reinforcement, top is fixed with elasticity roof beam structure and plasticity elastic body injection molded saddle body, rear flank section vehicle frame also is provided with rear-axle tube and following adapter shaft, on, between the following adapter shaft rear flank bumper is housed; Rudder steering mechanism is by the binodal folder handlebar to be connected with damping sidecar fork, and the damping sidecar portion of sticking is installed on the leading portion vehicle frame, and its lower end is fixed with slipper, preceding central siphon, on the preceding central siphon front vehicle wheel is installed; Driver train is by flexible handle rotating middle shaft internal speed changer, again through chain gear, make rear axle tube rotate rear wheel, the flexible handle is divided into three arm of force medial axis handles and equal strength can be rolled over handle, the former middle part is provided with folder fin, the latter is provided with fixer, the axis internal speed changer is to increase speed-changing mechanism to realize speed change in acceleration mechanism, acceleration mechanism is fixing rocking arm and through the bearing fixing sun gear at the middle part of axle, internally toothed annulus is fixed in the shell, can go into power by the two ends of axle, realize quickening through rocking arm and planetary wheel center of turn gear drive sprocket wheel, speed-changing mechanism is to increase to pay sun gear and pay inner gear on sun gear and inner gear, increase bearing between large internal gear and pair inner gear and the shell, increase variable speed plate inside the shell, free-wheel clutch and change gear group are housed on the variable speed plate, realize speed change by variable speed plate control free-wheel clutch and change gear group; Front vehicle wheel is to rear wheel and close foldingly, and the flexible handle makes pedal inwardly folding, and handlebar is folding to the drive side of rear wheel, and after folding the finishing, its thickness is the length of axis, and its width is the external diameter of wheel, and it highly is 1.618 times of width.

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