CN2433164Y - Portable multifunction folding bicycle - Google Patents

Abstract

The utility model relates to a portable multifunction folding bicycle. The utility model has the advantages of small size, light weight, capability of folding, and portability. The utility model is composed of a handlebar, wheels, bicycle forks, and bicycle frames, wherein, the front and the rear bicycle frames are connected through hinges; one end of a rear bicycle fork is fixed to a shaft of a rear wheel, and the other end of the rear bicycle fork is connected with vertical pipes and can rotate around the shaft; the rear wheel is respectively provided with a grooved wheel type right flywheel and a grooved wheel type right flywheel; a left and a right foot pedals are sheathed on a shaft through pedal rods; a round belt passing through three grooved wheels is respectively arranged on the left and the right foot pedals and the left and the right grooved wheel type flywheels. The utility model is suitable for the old people, children, and tourists to use.

Description

The portable multi-function folding bicycle

The utility model relates to technical field of bicycles, and exactly it is a kind of portable multi-function folding bicycle.

The invention of folding bicycle for a long time recently more and more is subjected to customer's favor, and it is for tourism and prevent that bicycle from losing bigger benefit arranged.But folding bicycle in the market is folding comparatively complicated, folds back weight, volume is all very big, is not easy to carry, and function singleness.

The purpose of this utility model provides a kind of volume after folding littler (having only 0.022 cubic meter), the portable multi-function folding bicycle of weight lighter (having only 3 kilograms), and it both can be used as baggage car whilst on tour, can fold again and carry.

The purpose of this utility model is achieved by the following scheme, it is by handlebar, wheel, front vehicle fork, rear vehicle fork, vehicle frame, pedal and driving system are formed, it is characterized in that: vehicle frame is divided into front vehicle frame (12) and back vehicle frame (39), the front and back vehicle frame connects with folding (42), rear vehicle fork (27) one ends are fixed on the axle of trailing wheel (24), the other end is linked together by axle (45) and standpipe (35), and can rotate around axle (45), saddle (38) is contained in the standpipe (35) by saddle standpipe (37) and is locked by locking nail (32), trailing wheel (24) is equipped with grooved pulley type left side flywheel (25) and the right flywheel (26) of grooved pulley type respectively, left and right sides pedal (21) and (22) are sleeved on the axle (33) by pedal-rod, and round belt (20) is by sheave (40), sheave (34) and sheave (22) are contained in left and right sides pedal (21) respectively, (19) and left and right sheave flywheel (25), (26).Left side handlebar (5) and right handlebar (3) are linked together by lock screw (4) locking.Be contained in front vehicle frame (12) bottom on the preceding pipe (11) and the below of shelf (30) spring (13) and (28) are housed respectively.The wheel hub of front and back wheel (17) and (24) is the whole wheel hub of plastics formula.The grooved pulley type flywheel is that ball (50) and very heavy (48) and very heavy spring (49) are installed in sheave (47) below, and is sleeved on star-wheel (46) and goes up and form, and locks with back-up ring (52).

The utility model has the advantages that: the utility model is simple in structure, and folding convenient is in light weight, and volume is little, is easy to carry.And can be folded into baggage car, not only can be fit to old man and children and use, also be particularly suitable for travelling and do not have the resident in garage to use.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Structural representation when Fig. 2 is folded into baggage car for the utility model.

Fig. 3 is a grooved pulley type flywheel structure scheme drawing in the utility model.

1 is standpipe among the figure, 2 is the front brake handle, 3 is right handlebar, 4 is lock screw, 5 is left handlebar, 6 is the back brake handle, 7 is retainer, 8 is jam nut, 9 is the front fork nut, 10 are front vehicle fork retaining bowl assembly set, 11 is preceding pipe, 12 is front vehicle frame, 13 is spring, 14 is preceding shelf, 15 are front fork shoulder latch hook, 16 is front vehicle fork, 17 is front-wheel, 18 is front brake, 19 is right pedal, 20 is round belt, 21 pedal for left foot, 22 is sheave, 23 is back brake, 24 is trailing wheel, 25 is grooved pulley type left side flywheel, 26 is the right flywheel of grooved pulley type, 27 is rear vehicle fork, 28 is spring, 29 is spot lamp, 30 is the back shelf, 31 is pull bar, 32 is locking nail, 33 is axle, 34 is sheave, 35 is standpipe, 36 is locking nail, 37 is the saddle standpipe, 38 is saddle, 39 is the back vehicle frame, 40 is sheave, 41 is lock shaft, 42 are folding, 43 is bearing pin, 44 are backguy, 45 is axle, 46 is star-wheel, 47 is sheave, 48 is very heavy, 49 is very heavy spring, 50 is ball, 51 is pad, 52 is back-up ring.

The utility model Regular Bicycle factory and power depot all can produce, and wheel adopts 12 cun minor diameter wheels, and wheel hub adopts integral type plastics wheel hub, and parts such as handlebar, vehicle frame adopt high strength aluminum alloy to make, to alleviate car body weight.Handle riser 1 and right handlebar 3 weld togethers, insert in the standpipe of front vehicle fork 16, and by retainer 7, lock screw 8, front fork nut 9 is locked on the front vehicle fork 16, a left side handlebar be fixed in the joint by lock screw 4, separable opening when folding, front and rear brake is 2,6 are separately fixed on the handlebar of the left and right sides, preceding pipe 11 is contained on front vehicle fork 16 standpipes by five formula front vehicle forks retaining bowl assembly sets 10, spring 13, front vehicle frame 12 all is enclosed within on the front vehicle fork shoulder, and can upwards dig, front fork shoulder latch hook 15 can make front-wheel 17 can not roll over backward in riding, front brake 18 is a kind of locks that touch, right pedal 19, left foot pedals 21 around axle 33 reciprocally swingings, when left foot is pedaled when scrunching downwards, drive flywheel 25 counter-rotatings of a grooved pulley type left side by round belt 20, wheel 24 is rotated forward, and round belt 20 is walked around sheave 22, and the wheeled right flywheel 26 of trough of belt is just changeing, and drive right pedal 19 upward movements, when right pedal scrunches, drive round belt 20 counter motions downwards, drive right flywheel 26 counter-rotatings of grooved pulley type, at this moment, drive wheel by the right flywheel 26 of grooved pulley type, grooved pulley type flywheel 25 is just changeing, and left foot is pedaled upward movement, scrunch so repeatedly, wheel turns round forward.Back brake 23 also is a kind of lock that touches, and is fixed on the rear vehicle fork 27, and spring 28 is fixed on the rear vehicle fork 27, and withstand on the shelf 30 of back, playing cushioning effect, back shelf 30 are held by pull bar 31, spot lamp 29 is housed on the back shelf, trailing wheel 24 is rotated around axle 45 by rear vehicle fork 27, changes collapsible forward, but turns round because the action of the spring damping, axle 45 links together with standpipe 35 lower ends, and be fixed in the standpipe of back on the vehicle frame 39 by pinning 32, unclamp locking nail 32 standpipes and can shrink downwards, be convenient to vanning and carry.Saddle standpipe 37 can folding and unfolding in standpipe, and fixing by locking nail 36, and saddle 38 is contained on the saddle standpipe 37, sheave 34,40 plays supporting round belt 20 effect, the front and back vehicle frame is linked together by middle folding 42, and folding is rotated around lock shaft 43, is pinned by lock shaft 41 when closing up.Lock shaft 41 rotates 90 ° when folding, make flat direction of principal axis aim at the opening of front vehicle frame upper shed axle sleeve, vehicle frame folding becomes the baggage car state before and after can separating, simultaneously by backguy 44, the folding Fig. 2 state that is retracted to of pulling front and back wheel, when back shelf shrink under the effect of pull bar 31, make the latter half of of back shelf turn up into horizontality and preceding shelf constitute the baggage car shelf jointly, work as handlebar, saddle, vehicle frame, when wheels etc. are all packed up, the long 480mm that can pack into, wide 380mm, in the suitcase of thick 120mm, carry travelling, very convenient, the grooved pulley type flywheel is to aim at the utility model design-calculated round belt 20 transmission flywheels.Divide two kinds of left and right directions, the structure basically identical is made up of star-wheel 46, overcoat 47, very heavy 48, very heavy spring 49, ball 50, pad 51 and back-up ring 52 as shown in Figure 3, there are 3 screws to be used for fixing on wheel on the star-wheel, sheave is rotated by both sides ball bearing star-wheel, and very heavy and on the ratchet effect under do unidirectional rotation, back-up ring promptly plays the back-up ring effect and plays the raceway effect again.

Claims (5)

1, the portable multi-function folding bicycle, it is by handlebar, wheel, front vehicle fork, rear vehicle fork, vehicle frame, pedal and driving system are formed, it is characterized in that: vehicle frame is divided into front vehicle frame (12) and back vehicle frame (39), the front and back vehicle frame connects with folding (42), rear vehicle fork (27) one ends are fixed on the axle of trailing wheel (24), the other end is linked together by axle (45) and standpipe (35), and can rotate around axle (45), saddle (38) is contained in the standpipe (35) by saddle standpipe (37) and is locked by locking nail (32), trailing wheel (24) is equipped with grooved pulley type left side flywheel (25) and the right flywheel (26) of grooved pulley type respectively, left and right sides pedal (21) and (22) are sleeved on the axle (33) by pedal-rod, and round belt (20) is by sheave (40), sheave (34) and sheave (22) are contained in left and right sides pedal (21) respectively, (19) and left and right sheave flywheel (25), (26).

2, a kind of portable multi-function folding bicycle according to claim 1 is characterized in that: left handlebar (5) and right handlebar (3) are linked together by lock screw (4) locking.

3, a kind of portable multi-function folding bicycle according to claim 1 is characterized in that: be contained in front vehicle frame (12) bottom on the preceding pipe (11) and the below of shelf (30) spring (13) and (28) are housed respectively.

4, a kind of portable multi-function folding bicycle according to claim 1 is characterized in that: the wheel hub of front and back wheel (17) and (24) is the whole wheel hub of plastics formula.

5, a kind of portable multi-function folding bicycle according to claim 1, it is characterized in that: the grooved pulley type flywheel is in sheave (47) below ball (50) and very heavy (48) and very heavy spring (49) to be installed, and be sleeved on that star-wheel (46) go up to form, with back-up ring (52) locking.

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