CN202944503U

CN202944503U - Folding luggage barrow which can be unfolded to form bicycle

Info

Publication number: CN202944503U
Application number: CN2012205092580U
Authority: CN
Inventors: 吴宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-08
Filing date: 2012-10-08
Publication date: 2013-05-22
Anticipated expiration: 2022-10-08

Abstract

The utility model discloses a folding luggage barrow which can be unfolded to form a bicycle. The folding luggage barrow which can be unfolded to form the bicycle is composed of a front wheel, a flexible folding handlebar direction component, a back wheel, a flexible folding seat, a driving component and a middle four-bar-link folding frame component. A flexible folding handlebar and a seat rod can be pulled out from the lower portion and locked. When the four-bar-link folding frame component can be folded and compressed to a width of a luggage barrow, the four-bar-link folding frame component is parallel to a front component and a back component, wherein the four-bar-link folding frame component is connected with the front component and the back component. When the four-bar-link folding frame component is unfolded to be a frame of the bicycle, needed inclination angles are formed by the front component and the back component and the ground, and a stable trapezoid state is formed. The folding luggage barrow for travelers carrying on is convenient. Heavy luggage is dragged to travel, and the folding luggage barrow can be unfolded to form the bicycle when needed. And the position of the frame of the folding luggage barrow is low. The folding luggage barrow for the female is convenient to ride and use. Under the premise that the requirements are ensured, effect and a purpose of that after the folding luggage barrow folded, the folding luggage barrow is small and exquisite in volume, portable and convenient to store up can be achieved.

Description

A kind of foldable luggage trolley that launches to form bicycle

Technical field

The utility model relates to a kind of multipurpose bicycle, is a kind of being convenient for carrying specifically, the Collapsible bicycle that a car is multiplex.

Background technology

We often need a baggage car to be convenient for carrying luggage usually when long-term travel, and in general baggage car can fold, but few people make other purposes with it.Perhaps, we more need a bicycle in travelling in fact, conveniently descended aircraft and train, have left after private car the short term travel in business district and scenic spot.But because the weight and volume of bicycle is all larger, except special bicycle pleasure trip on foot, almost nobody does not have possibility also to carry the bicycle of a heaviness in long-term travel constantly yet, some bicycle also can fold and be lighter, but still the possibility that can conveniently carry well beyond the tourist.To the greatest extent the possessor attempts to design the bicycle that can be transformed into baggage car, but also all exists many serious defectives and lack practical value.

In newer background technology, have a near this case, also commercialization, the product that has numerous producers producing, the domestic folding bicycle with small wheels A-bike that can morely see, it comes from newer patented technology abroad, is known as that the whole world is the lightest, minimum folding bicycle.Because this car has adopted integrated transmission shifting mechanism and scalable vehicle frame technology, folding, contraction is got up smaller and more exquisite, and because of a large amount of aluminum alloy materials that adopt, weight is also low weight.Also have the patent of invention of a domestic mandate also very similar, application number and Granted publication number are respectively 200910103736.0 and CN101544259B, but also can not see corresponding product in market.Below deficiency and the defective of conventional art mainly are described around these two newer technology.

For simplified structure and expendable weight as much as possible, the vehicle frame of these two kinds of cars all adopts succinct and stable triangular structure or is the A font structure, thereby can be under the prerequisite that keeps small volume and less weight like this, after launching, vehicle frame can reach manned firm requirement of riding.

But because A font structure upper end is too little, can't pull open needed distance between handlebar and vehicle seat, therefore it has adopted three methods to expand: the 1st, added a bit of crossbeam on the top of A word, and make the upper end of A a little wide, again not larger the stable of structure that affect.The 2nd, also added a bit of crossbeam between handlebar and verticle stem of handlebar, handlebar is leant out forward, so just equal handlebar to the segment distance that moved forward.The 3rd, the back of the needle beam that adds on A word top and flexible vehicle frame utilize flexible vehicle frame to add two hinged bars below, when vehicle frame launches and vehicle frame form the another one triangle, the special vehicle seat of installing, this is equivalent to also add a bit of crossbeam between vehicle frame and vehicle seat, makes vehicle seat move backward a segment distance.However, handlebar reach, saddle rear-moving, centre are widened, and it is still less than normal that three sections extended ranges are added up, and this car of riding still has thigh will encounter the sensation of handlebar when turning.And design like this vehicle frame and produced new safety problem.At first, the handlebar that leans out forward, particularly new-type straight handle, the heart do not overlap with the front-wheel steering center, after move, cause when turning, be not one hold forward, another hold just can having turned backward, but two hands are drawn arc somewhere simultaneously in the place ahead, front-wheel steering center.The not all people of this mode can adapt in the short time, it is violent that to ride this car easily swaying, so and standard bicycle, handlebar is just in time opposite to the cart style handlebar operation skill of palintrope, the reach of handlebar turning center, give to ride and be used to standard bicycle, change suddenly the people who rides this car and increased danger.Secondly, the shortcoming that the scalable central frame beam of A font is high still can't solve, its main car frame that can only stretch, the function main flexible, locking of his handlebar and vehicle seat is that flexible, the lock function unit design with main car frame can not separate together, not the even flexible modes of vehicle frame of independent Telescopic handle, vehicle seat, then there is the people to ride over flexible the expansion, when this car of middle high high-crowned vehicle frame is ridden in the street, look what monster was blamed, ride also very uncomfortable.Most of women particularly, do not like rear knee leg to get on the bus, more need when getting off to draw leg before fast speed, be that the women gets on or off the bus and all carries out in the place ahead of car, this phenomenon was embodied in when summer, the women wore skirt especially, because can't get on the bus from the rear this moment at all, this makes this vehicle that obvious sex preference be arranged.in addition, the women, also comprise many underactions, when individual short the and older male sex faces a danger by bike, sudden stop the descendant alter forward, if be at this moment traditional women's bicycle of large camber beam, just can diverge both legs lands, walking vehicle oneself avoids falling down making on camber beam, but if 28 inches man's bicycles of high straight beam just are difficult in the past, the car of this new A font vehicle frame particularly, the vehicle frame of front might be also higher than vehicle seat, under she or he not car just can only fall down heavyly, hinder crotch but also may press against, give the cyclist particularly women cyclist bring larger danger.

In addition, above-mentioned front a kind of merchandizing A font telescopic folding BMX (Bicycle Motocross), although volume after folding is less, but can't or be inconvenient to draw row, and no matter be to shoulder, remove, carry on the back, or portable long-distance fulfiling of bicycle, an Arabian Nights is still arranged, and the road is far without underloading after all.A kind of A font telescopic folding BMX (Bicycle Motocross) then, just carry out a little and add improvement on former basis, the difficulty that does not solve this vehicle rides, the subject matter such as impracticable, and slightly aobvious loaded down with trivial details again when design variations becomes baggage car, putting not use simultaneously of two ready-made wheels, again designing a wheel back of the body after car more, not only the ugly weight that also increased, the suspicion of drawing a snake and add feet to it is arranged, thereby the more difficult people of having is ready merchandizing.

Summary of the invention

For the prior art above shortcomings, problem to be solved in the utility model is to provide a kind of foldable luggage trolley that launches to form bicycle, both can facilitate the tourist to carry, pull heavier luggage travelling, but also can launch when needed to form a light touring bicycle, and the position of this vehicle carriage is lower, convenient for femalely rides and uses.Adopt simultaneously independent foldable chassis, independent scalable handlebar, independent scalable vehicle seat design, can allow height, the distance between them etc. separately of handlebar and vehicle seat more reasonable, solution comfortable, the practical problem of riding, more can not produce the danger that when turning, knee touches handlebar, and under these prerequisites, reach equally effect and the purpose of volume after folding small volume and less weight.

In order to achieve the above object, the utility model has adopted following technical scheme:

A kind of foldable luggage trolley that launches to form bicycle, direction assembly 1, trailing wheel, telescopic folding seat, driven unit 2 and centre and front and back assembly are distinguished up and down four hinged connecting rod folding stand assemblies 3 and are consisted of by front-wheel, telescopic folding for it.Front-wheel, the direction assembly, the front vehicle frame articulated bracket 6 that is connected by front-wheel 4, front fork 5, with the front fork upper end and forming with scalable, the Foldable handlebar 7 of barre.Barre scalable, Foldable handlebar 7 can pull out and lock by fixing and locking device from lower part front vehicle frame articulated bracket 6.The centre portion of the left and right handlebar of scalable, Foldable handlebar 7 is hinged and is in the state of relative locking by fixing and locking device, wherein only have half of to be connected with barre, another one side of something just can fold into offside from the top when needed, makes to can be folded into the right and left the state in the same side when being deformed into baggage car.The rear vehicle frame articulated bracket 11 that trailing wheel, telescopic folding seat, driven unit 2 are connected by trailing wheel 8, integrated transmission shifting mechanism 9, footstep mechanism 10, with integrated transmission shifting mechanism 9 upper ends, the telescopic folding vehicle seat 12 of the bar of usheing to seat form, and wherein a seat bar can pull out and lock by fixing and locking device from rear vehicle frame articulated bracket 11.four connecting rod folding stand assemblies 3 comprise, middle folding four-bar linkage 13, not only form the front hinged sleeve pipes 14 of turnable socket and hinged with two places, four-bar linkage up and down but also form with rear vehicle frame articulated bracket 11 the rear hinged sleeve pipes 15 that are socketed turnably respectively with front vehicle frame articulated bracket 6 with two places, four-bar linkage up and down are hinged respectively, when four above-mentioned connecting rod folding stand assemblies 3 are become bicycle rack by horizontal open, in fact by front hinged sleeve pipe 14 and rear hinged sleeve pipe 15 and middle folding four-bar linkage Shang Xia 13 hinged formed former and later two tetragonal four limits be all unequal non-parallel quadrangle, if all between mutually hinged four connecting rods of appropriate selection are flexibly connected the position of axles, can allow described four connecting rod folding stand assemblies 3 form dexterously and its turnable front-wheel that is socketed, telescopic folding is direction assembly and trailing wheel, the telescopic folding seat, driven unit is parallel when folding the width that is compressed to baggage car, and it can form the front-wheel of bicycle when being launched into bicycle rack, telescopic folding is the direction assembly, trailing wheel, the telescopic folding seat, driven unit forms needed angle of inclination with ground separately, a kind of stable trapezoidal state.They all can turn to direction assembly 1 and trailing wheel, telescopic folding seat, driven unit 2 for above-mentioned front-wheel, telescopic folding, and they can lock when all turning 90 degrees to same direction, when four connecting rod folding stand assemblies 3 in the middle of this moment are in again the baggage car width of compression and two ends parastate, just formed the equal parallel state of two wheels of baggage car and front hinged sleeve pipe 14, rear hinged sleeve pipe 15 after folding, car load can by can be drawn out, fold into monolateral telescopic folding handlebar 7 and draw row as handle.Above-mentioned collapsible four-bar linkage 13 and front hinged sleeve pipe 14 and rear hinged sleeve pipe 15 hinged both sides connecting rod one side respectively are single tubes, opposite side is two-tube setting, single tube is in the centre, the single tube that is connected by pitman shaft with it is clamped in the two-tube outside that is placed on, and so just forms more stable, symmetrical, the stressed uniform movable four-bar linkage that is made of six roots of sensation metal tube.Four above-mentioned connecting rod folding stand assemblies 3, after their launch to form bicycle rack, can be by on folding four-bar linkage 13, frame locking mechanism being set, the vehicle frame of downward pressure-bearing is locked after being opened to assigned position.Equally, trailing wheel, telescopic folding seat, driven unit 2 also can the fixing and locking device lockings by arranging on it when rotating to assigned position.

above-mentioned frame locking mechanism, can a four-bar linkage locking jacking block 16 hinged with it be set two-tube side lower end extended end below folding four-bar linkage 13, be provided with trailing wheel direction-locking projection 20 and trailing wheel direction spacing preiection 21 on the casing plane on integrated transmission shifting mechanism 9, when folding four-bar linkage 13 launches to form bicycle rack, its connecting rod lower surface hinged below rear hinged sleeve pipe 15 should be parallel with large face on integrated transmission shifting mechanism 9 casings and be close to, but we will make more crossing of folding four-bar linkage 13 expansion and more higher at the beginning, we could lock four-bar linkage jacking block 16 to sideway swivel and when attempting to withstand on the breach of monotroded bar extended end of offside like this, integrated transmission shifting mechanism is comprised that the trailing wheel direction-locking projection 20 on it all rotates under folding four-bar linkage downside connecting rod, due to trailing wheel direction spacing preiection 21 higher than trailing wheel direction-locking projection 20, and more near the lower link point of connecting rod and rear hinged sleeve pipe 15, rotary course is spacing by trailing wheel direction spacing preiection 21, this moment trailing wheel should with the formed vehicle frame of four-bar linkage point-blank, like this when launching some folding four-bar linkage of crossing when falling back to the assigned position that the large face on it is close to integrated transmission shifting mechanism 9 downwards, just just crouch in trailing wheel direction-locking projection 20 with one of rear hinged sleeve pipe 15 following hinged double link, among gap between trailing wheel direction spacing preiection 21, trailing wheel direction-locking projection 20 is tightened among also just falling into the gap of two bars, the whole like this trailing wheel that turns to, the telescopic folding seat, the direction of driven unit 2 just is locked on the position of bicycle, and four-bar linkage locking this moment jacking block 16 also just holds out against on the breach of the monotroded bar extended end of offside, make folding four-bar linkage 13 limited and pinning when being deployed into assigned position of downward pressure-bearing.

above-mentioned footstep mechanism 10 can install pedal crank annex for convenience detach additional on its pedal crank, pedal crank annex for convenience detach comprises the pedal crank lock bolt 17 with knob, the special-purpose fixed cap 18 of lock bolt and bolt bearing pin 19 form, the special-purpose fixed cap 18 of lock bolt is tightened on the fine groove negative thread of the original installation in pedal crank square hole outside trim, pass the circular hole at the special-purpose fixed cap of lock bolt 18 centers with the pedal crank lock bolt 17 of knob, opposite side at this lid, to pin with the pedal crank lock bolt 17 of knob with bearing pin 19 or spring cotter, allowing can be in the special-purpose fixed cap 18 top rotation of lock bolt with the pedal crank lock bolt 17 of knob, form running-fit, the pedal crank lock bolt 17 of this belt transect knob just can with pedal crank and its upper install can fold ride and screw off or screw on by this knob together, screw, also be provided with simultaneously each two mounting holes 34 in addition on the same position with the knob end face of the pedal crank lock bolt of knob and the special-purpose fixed cap of lock bolt that is assembled together.

above-mentioned front-wheel, telescopic folding be direction assembly 1, and trailing wheel, telescopic folding seat, driven unit 2 respectively are equipped with a Foldable luggage rack bolt of rear end plate right angle 22 below in their outside, be used for installing Foldable luggage rack 23 and annex 24 thereof, Foldable luggage rack 23 is by three hinged forming of the mobilizable metal rod of hollow square type, two baggage rack vertical poles 25 are hinged on baggage rack cross bar 26 two ends, on other one of this cross bar perpendicular face should two ends also be provided with Foldable luggage rack bolt of rear end plate right angle 22 on the hinged circular hole of bolt of rear end plate, but in fact only have a side to have, the other end is at the corresponding local groove that is complementary with bolt of rear end plate that only is provided with, when car load launches to form bicycle, baggage rack is folding, baggage rack cross bar 26 is vertical is hinged on bolt of rear end plate on the Foldable luggage rack bolt of rear end plate right angle 22 of front-wheel, two baggage rack vertical pole 25 H to Hs are rolled in opposite directions, that tilts a little is close together mutually with baggage rack cross bar 26, when the utility model forms baggage car, the front and back wheel arrangement in parallel, this moment, we allowed baggage rack cross bar 26 90-degree rotations set level, swing on the bolt of rear end plate at Foldable luggage rack bolt of rear end plate right angle 22 of trailing wheel, and with the groove on it and its fastening, the parastate of two wheels is further locked, this is the state of a not load-carrying luggage in fact, if we think further to enable this Foldable luggage rack, we must be before baggage rack cross bar 26 rotation 90 degree be set level, two baggage rack vertical poles 25 are launched into the state vertical with baggage rack cross bar 26, and then rotate 90 degree and set level bolt of rear end plate fastening on Foldable luggage rack bolt of rear end plate right angle 22 with offside, pin, at last two on the baggage rack annex 24 metal tongues 27 with spring button are tightly inserted two hollow baggage rack vertical poles 25 that coordinate with it and pass through the formed fixing and locking device pinning of circular hole corresponding with spring button on baggage rack vertical pole 25, so a complete baggage rack has just formed.

Above-mentioned front-wheel, telescopic folding are direction assembly 1, trailing wheel, telescopic folding seat, driven unit 2 and four connecting rod folding stand assemblies 3, when being folded into baggage car, rear side in whole frame mass centre deflection, it is this side of integrated transmission shifting mechanism 9 deflections, can be provided with the special-purpose backpack assembly of the lighter luggage of dress, and one is supported them and the special-purpose with lock of car load singly plays 33 this moment; Special-purpose backpack assembly comprises, special-purpose backpack 28 is connected in respectively front-wheel, the direction assembly, the both shoulders bag on trailing wheel, seat, driven unit link up with 29 and two both shoulders bags that match of being arranged on special-purpose backpack top be linked with 30; On described special-purpose backpack 28, be provided with the vertical slide fastener 31 that always can move the length coupling of special-purpose backpack bottom in the place of conflicting with integrated transmission shifting mechanism 9, after slide fastener 31 pulls open, the inside is provided with the cloth bag that approaches with integrated transmission shifting mechanism 9 rear side box volumes, just in time can being loaded into integrated transmission shifting mechanism 9 outshot integral body; Described special use is with lock singly plays 33 and is one and strengthens singly playing of folding angle, guarantee to be close to when this singly kicks up integrated transmission shifting mechanism 9 casing rear sides, in case it conflicts with the footstep mechanism 10 that gets into smooth when the utility model distortion becomes bicycle.

The knuckle section of the above-mentioned scalable place of each assembly, Foldable handlebar and the trailing wheel that can turn to of the utility model, telescopic folding seat, driven unit is all jacketed designs, and be provided for the elasticity navigation button that locks on internal layer, what mate on skin arranges knock hole, make internal layer stretching out, can leaning on the cooperation between elastic button and diverse location knock hole to position locking after retraction or 90-degree rotation, form fixing and locking device.In fact telescopic folding of the present utility model is the direction assembly, telescopic section on trailing wheel, telescopic folding seat, driven unit is the same with the telescopic handle of folding scooter, not still jacket layer design, and also there is the positioning runner of working in coordination to prevent that handlebar and front fork, vehicle seat and vehicle frame from relatively rotating on verticle stem of handlebar and seat bar and their corresponding sheathcoat, and equally also be provided with safety lock with trigger piece and hug hoop 32 and further lock handlebar and the vehicle seat that is raised the location, increase to greatest extent safety factor.

The invention of this reality compared with prior art, its outstanding advantages is both to have facilitated the tourist to carry, pull heavier luggage travelling, can also launch when needed to form a light touring bicycle, carry the tourist in long-term travel way or the destination, carry out the short distance action of freedom, environmental protection and body health benefits, and used time not, again can be as common baggage car, pulling it and purchasing in market, scenic spot and even play.And the position of this vehicle carriage is lower, convenient for femalely rides and uses.Adopt simultaneously independent foldable chassis, independent scalable handlebar, independent scalable vehicle seat design, can allow height, the distance between them etc. separately of handlebar and vehicle seat more reasonable, solution comfortable, the practical problem of riding, and under these prerequisites, reach equally effect and the purpose of volume after folding small volume and less weight.Place in floor higher office, residence and any bicycle parking inconvenience, can be folded into small and exquisite, the light baggage car of volume to it draws in elevator, draws in office or upstairs portable, put into easily under the table in office or family, behind the door, in the cabinet kitchen, even under train chair, the medium any corner collection of automobile trunk.

Description of drawings

Accompanying drawing is the structural representation of the utility model embodiment.

Fig. 1 is the three-dimensional structure diagram of a kind of foldable luggage trolley that launches to form bicycle of the present utility model when launching;

Fig. 2 is that the utility model is folded into baggage car and unfolded baggage rack, the three-dimensional structure diagram when plugging the baggage rack annex;

Fig. 3 is the perspective view of the utility model when being folded into baggage car and hanging up special-purpose both shoulders bag;

Fig. 4 is that the utility model is folded into minimal structure and supports the schematic perspective view of standing with special-purpose with lock singly playing;

It is slightly out-of-date that Fig. 5 is that collapsible four-bar linkage launches, integrated transmission shifting mechanism together with the trailing wheel direction-locking projection on it turn round below the collapsible four-bar linkage of raising prepare to forward to it under when waiting it again to fall by the schematic diagram of its locking;

Fig. 6 is after collapsible four-bar linkage launches, the schematic diagram during with the locking of four-bar linkage locking jacking block;

Schematic appearance when Fig. 7 kicks up for install foot-operated handle annex for convenience detach and Fig. 4 list additional on foot-operated handle;

Fig. 8 is for convenience of the foot-operated handle annex assembling of dismounting cross-sectional view;

Fig. 9 is baggage rack annex perspective view;

Figure 10 is special-purpose backpack schematic perspective view;

Figure 11 be the utility model when launching to become bicycle the user carry the schematic perspective view that special-purpose backpack is ridden;

Figure 12 be the utility model when being folded into baggage car the user haul the schematic perspective view of extension special-purpose backpack walking thereon;

Mark in Fig. 1 to Figure 12: 1 front-wheel, telescopic folding are the direction assembly; 2 trailing wheels, telescopic folding seat, driven unit; 3 four connecting rod folding stand assemblies; 4 front-wheels; 5 front forks; 6 front vehicle frame articulated brackets; 7 scalable, Foldable handlebars; 8 trailing wheels; 9 integrated transmission shifting mechanisms; 10 footstep mechanisms; 11 rear vehicle frame articulated brackets; The 12 telescopic folding vehicle seats of usheing to seat bar; 13 folding four-bar linkages; 14 front hinged sleeve pipes; 15 rear hinged sleeve pipes; 16 four-bar linkage locking jacking blocks; The 17 pedal crank lock bolts with knob; The special-purpose fixed cap of 18 lock bolts; 19 bearing pins; 20 trailing wheel direction-locking projections; 21 trailing wheel direction spacing preiections; 22 Foldable luggage rack bolt of rear end plate right angles; 23 Foldable luggage racks; 24 baggage rack annexes; 25 baggage rack vertical poles; 26 baggage rack cross bars; 27 metal tongues; 28 special-purpose backpacks; 29 both shoulders bag hooks; 30 both shoulders bags are linked with; 31 slide fasteners; 32 safety locks hug hoop; 33 special-purpose with lockly singly play; 34 mounting holes.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further detailed.

To shown in Figure 12, a kind of foldable luggage trolley that launches to form bicycle comprises by Fig. 1:

Direction assembly 1, trailing wheel, telescopic folding seat, driven unit 2 and centre and front and back assembly are distinguished up and down four hinged connecting rod folding stand assemblies 3 and are consisted of by front-wheel, telescopic folding; Wherein front-wheel, the direction assembly, the front vehicle frame articulated bracket 6 that is connected by front-wheel 4, front fork 5, with the front fork upper end and forming with scalable, the Foldable handlebar 7 of barre; The barre of scalable, Foldable handlebar 7 can pull out and lock by fixing and locking device from the front vehicle frame articulated bracket 6 that lower part and front fork upper end are connected.the centre portion of the left and right handlebar of scalable, Foldable handlebar 7 is spacing hinged and be in the state of relative locking by fixing and locking device, wherein only have half of to be connected with barre, another one side of something just can fold into offside from the top when needed, makes to can be folded into the right and left the state in the same side when being deformed into baggage car, the rear vehicle frame articulated bracket 11 that above-mentioned trailing wheel, telescopic folding seat, driven unit 2 are connected by trailing wheel 8, integrated transmission shifting mechanism 9, footstep mechanism 10, with integrated transmission shifting mechanism 9 upper ends, the telescopic folding vehicle seat 12 of the bar of usheing to seat form, and wherein the seat bar can pull out and lock by fixing and locking device from the rear vehicle frame articulated bracket 11 that is connected with integrated transmission shifting mechanism 9 and its upper end, four above-mentioned connecting rod folding stand assemblies 3 comprise, middle folding four-bar linkage 13, respectively with two places, four-bar linkage up and down hinged again with front-wheel, telescopic folding the front vehicle frame articulated bracket 6 in the middle of direction assembly 1 form the front hinged sleeve pipes 14 of turnable socket and respectively with four-bar linkage up and down two places hinged again with trailing wheel, the telescopic folding seat, rear vehicle frame articulated bracket 11 in the middle of driven unit 2 forms the rear hinged sleeve pipe 15 of turnable socket, when described four connecting rod folding stand assemblies 3 are become bicycle rack by horizontal open, in fact by front hinged sleeve pipe 14 and rear hinged sleeve pipe 15 and middle folding four-bar linkage Shang Xia 13 hinged formed former and later two tetragonal four limits be all unequal, it not namely parallelogram, if all between mutually hinged four connecting rods of appropriate selection are flexibly connected the position of axles, can allow described four connecting rod folding stand assemblies 3 form dexterously with its turnable above-mentioned front-wheel that is socketed, telescopic folding direction assembly 1, trailing wheel, telescopic folding seat, driven unit 2 respectively are equipped with a Foldable luggage rack bolt of rear end plate right angle 22 below in their outside, be used for installing Foldable luggage rack 23 and annex 24 thereof, Foldable luggage rack 23 is by three hinged forming of the mobilizable metal rod of hollow square type, two baggage rack vertical poles 25 are hinged on baggage rack cross bar 26 two ends, on other one of this cross bar perpendicular face should two ends also be provided with Foldable luggage rack bolt of rear end plate right angle 22 on the hinged circular hole of bolt of rear end plate, but in fact only have a side to have, the other end is at the corresponding local groove that is complementary with bolt of rear end plate that only is provided with, when car load launches to form bicycle, baggage rack is folding, baggage rack cross bar 26 is vertical is hinged on bolt of rear end plate on the Foldable luggage rack bolt of rear end plate right angle 22 of front-wheel, two baggage rack vertical pole 25 H to Hs are rolled in opposite directions, that tilts a little is close together mutually with baggage rack cross bar 26, when the utility model forms baggage car, the front and back wheel arrangement in parallel, this moment, we allowed baggage rack cross bar 26 90-degree rotations set level, swing on the bolt of rear end plate at Foldable luggage rack bolt of rear end plate right angle 22 of trailing wheel, and with the groove on it and its fastening, the parastate of two wheels is further locked, this is the state of a not load-carrying luggage in fact, if we want that into a front-wheel, telescopic folding be parallel with trailing wheel, telescopic folding seat, driven unit when folding the width that is compressed to baggage car to the direction assembly, and it can form the front-wheel, telescopic folding of bicycle when being launched into bicycle rack the direction assembly, trailing wheel, telescopic folding seat, driven unit form needed angle of inclination with ground separately, a kind of stable trapezoidal state, they all can turn to direction assembly 1 and trailing wheel, telescopic folding seat, driven unit 2 for above-mentioned front-wheel, telescopic folding, and they can be locked when all turning 90 degrees to same direction, when four connecting rod folding stand assemblies 3 in the middle of this moment are in again the baggage car width of compression and two ends parastate, just formed the equal parallel state of two wheels of baggage car and front hinged sleeve pipe 14, rear hinged sleeve pipe 15 after folding, car load can by can be drawn out, fold into monolateral telescopic folding handlebar 7 and draw row as handle, above-mentioned collapsible four-bar linkage and front hinged sleeve pipe 14 and rear hinged sleeve pipe 15 hinged both sides connecting rod one side respectively are single tubes, opposite side is two-tube setting, single tube is in the centre, the single tube that is connected by pitman shaft with it is clamped in the two-tube outside that is placed on, and so just forms more stable, symmetrical, the stressed uniform movable four-bar linkage that is made of six roots of sensation metal tube, four above-mentioned connecting rod folding stand assemblies 3, after their launch to form bicycle rack, can be by on folding four-bar linkage 13, frame locking mechanism being set, the vehicle frame of downward pressure-bearing is locked after being opened to assigned position.Equally, trailing wheel, telescopic folding seat, driven unit 2 also can the fixing and locking device lockings by arranging on it when rotating to assigned position.

above-mentioned frame locking mechanism, can be that two-tube side lower end extended end arranges a four-bar linkage locking jacking block 16 hinged with it below folding four-bar linkage 13, be provided with trailing wheel direction-locking projection 20 on integrated transmission shifting mechanism 9, trailing wheel direction spacing preiection 21, when folding four-bar linkage 13 launches to form bicycle rack, its connecting rod lower surface hinged below rear hinged sleeve pipe 15 should be parallel with large face on integrated transmission shifting mechanism 9 casings and be close to, but we will make more crossing of folding four-bar linkage 13 expansion and more higher at the beginning, we could lock four-bar linkage jacking block 16 to sideway swivel and when attempting to withstand on the breach of monotroded bar extended end of offside like this, integrated transmission shifting mechanism is comprised that the trailing wheel direction-locking projection 20 on it all rotates under folding four-bar linkage downside connecting rod, due to trailing wheel direction spacing preiection 21 higher than trailing wheel direction-locking projection 20, and more near the lower link point of connecting rod and rear hinged sleeve pipe 15, rotary course is spacing by trailing wheel direction spacing preiection 21, this moment trailing wheel should with the formed vehicle frame of four-bar linkage point-blank, like this when launching some folding four-bar linkage of crossing when getting back to the assigned position that the large face on it is close to integrated transmission shifting mechanism 9, just just crouch in trailing wheel direction-locking projection 20 with one of rear hinged sleeve pipe 15 following hinged double link, among gap between trailing wheel direction spacing preiection 21, trailing wheel direction-locking projection 20 is tightened among also just falling into the gap of two bars, the whole like this trailing wheel that turns to, the telescopic folding seat, the direction of driven unit 2 just is locked on the position of bicycle, and four-bar linkage locking this moment jacking block 16 also just holds out against on the breach of the monotroded bar extended end of offside, make folding four-bar linkage 13 limited and pinning when being deployed into assigned position of downward pressure-bearing.

When being transformed into baggage car due to the utility model, volume is small and exquisite, this moment, whole footstep mechanism lost effect, but its larger outer margin contour is shown especially out, seem and extremely be in the way, but also might rotate, therefore we can install pedal crank annex for convenience detach additional on its pedal crank, and it is become not the used time can pull down easily, the parts that the used time installs conveniently.pedal crank annex for convenience detach comprises, pedal crank lock bolt 17 with knob, the special-purpose fixed cap 18 of lock bolt and bolt bearing pin 19 form, be characterized in, the special-purpose fixed cap 18 of lock bolt is tightened on the fine groove negative thread of the original installation in pedal crank square hole outside trim, pass the circular hole at the special-purpose fixed cap of lock bolt 18 centers with the pedal crank lock bolt 17 of knob, opposite side at this lid, to pin with the pedal crank lock bolt 17 of knob with bearing pin 19 or spring cotter, allowing can be in the special-purpose fixed cap 18 top rotation of lock bolt with the pedal crank lock bolt 17 of knob, form running-fit, the pedal crank lock bolt 17 of this belt transect knob just can with pedal crank and its upper install can fold ride and screw off or screw on by this knob together, screw.be provided with simultaneously each two mounting holes 34 on the same position with the knob end face of the pedal crank lock bolt of knob and the special-purpose fixed cap of lock bolt that is assembled together, when inserting with a suitable U-shaped iron bar of the thickness that can inject simultaneously two mounting holes, just can make the pedal crank lock bolt with knob of running-fit relative fixing with the special-purpose fixed cap of lock bolt, so just facilitated the installation of the special-purpose fixed cap of lock bolt on pedal crank, utilization drives the special-purpose fixed cap rotation of lock bolt with the knob on the pedal crank lock bolt of knob, fine groove screw thread in the precession pedal crank also screws, then take out the U-shaped iron bar in mounting hole 34, install and just be through with, otherwise the special-purpose fixed cap of lock bolt also can be dismantled smoothly.

above-mentioned front-wheel, telescopic folding be the direction assembly, and trailing wheel, telescopic folding seat, driven unit respectively are equipped with a Foldable luggage rack bolt of rear end plate right angle 22 below in their outside, be used for installing Foldable luggage rack 23 and annex 24 thereof, Foldable luggage rack 23 is by three hinged forming of the mobilizable metal rod of hollow square type, two baggage rack vertical poles 25 are hinged on baggage rack cross bar 26 two ends, on other one of this cross bar perpendicular face should two ends also be provided with Foldable luggage rack bolt of rear end plate right angle 22 on the hinged circular hole of bolt of rear end plate, but in fact only have a side to have, the other end is at the corresponding local groove that is complementary with bolt of rear end plate that only is provided with, when car load launches to form bicycle, baggage rack is folding, baggage rack cross bar 26 is vertical is hinged on bolt of rear end plate on the Foldable luggage rack bolt of rear end plate right angle 22 of front-wheel, two baggage rack vertical pole 25 H to Hs are rolled in opposite directions, that tilts a little is close together mutually with baggage rack cross bar 26, when the utility model forms baggage car, the front and back wheel arrangement in parallel, this moment, we allowed baggage rack cross bar 26 90-degree rotations set level, swing on the bolt of rear end plate at Foldable luggage rack bolt of rear end plate right angle 22 of trailing wheel, and with the groove on it and its fastening, the parastate of two wheels is further locked, this is the state of a not load-carrying luggage in fact, if we think further to enable this baggage rack, we must be before baggage rack cross bar 26 rotation 90 degree be set level, two baggage rack vertical poles 25 are launched into the state vertical with baggage rack cross bar 26, and then rotate 90 degree and set level bolt of rear end plate fastening on Foldable luggage rack bolt of rear end plate right angle 22 with offside, at last two on the baggage rack annex 24 metal tongues 27 with spring button are tightly inserted two hollow baggage rack vertical poles 25 that coordinate with it also by the formed fixing and locking device pinning of circular hole corresponding with spring button on baggage rack vertical pole 25, so a complete baggage rack has just formed.

before the utility model, trailing wheel has identical inclination angle, adding that integrated transmission shifting mechanism 9 is amesiality, therefore when being folded into baggage car, when the Foldable luggage rack that does not launch front end, do not have weight can draw when carrying, whole frame mass centre deflection is not baggage rack place side but rear side, like this in order to guarantee the steadily of centre of gravity of car load, often remain on a side, drawing also should be just more reasonable in this side of frame mass centre when carrying lighter luggage, therefore the special-purpose backpack assembly that needs an alternative baggage container to load and take in lighter luggage in this side hangs over this side of baggage car, as load the detachable baggage rack annex of this car, detachable foot-operated mechanism and simple tool etc., but also need that special use is with lock singly plays 33 and support in this side the car load that comprise special-purpose backpack this moment, can stand.special-purpose backpack assembly comprises, special-purpose backpack 28, be connected in respectively front-wheel, the direction assembly, trailing wheel, seat, both shoulders bag on driven unit hook 29 and two the both shoulders bags that match that are arranged on special-purpose backpack top are linked with 30, because 9 this moments of integrated transmission shifting mechanism are also in this side and relatively protrude again, use general both shoulders bag to be placed in the relevant position can't to set level if make, therefore, on special-purpose backpack, be provided with the vertical slide fastener 31 that always can move the length coupling of special-purpose backpack bottom in the place of conflicting with integrated transmission shifting mechanism 9, after slide fastener 31 pulls open, the inside is provided with the cloth bag that approaches with integrated transmission shifting mechanism 9 rear side box volumes, just in time can being loaded into integrated transmission shifting mechanism 9 outshot integral body, and can play simultaneously the effect of special-purpose backpack internal capacity and external isolation, thereby special-purpose backpack can be set level for 28 this moments substantially.Special-purpose with lockly singly play 33 and be one and strengthen singly playing of folding angle, when singly being kicked up, this can be close to integrated transmission shifting mechanism 9 casing rear sides, in case it conflicts with the footstep mechanism 10 that gets into smooth when the utility model distortion becomes bicycle.

Claims

1. foldable luggage trolley that launches to form bicycle, it is characterized in that: direction assembly (1), four connecting rod folding stand assemblies (3) of trailing wheel, telescopic folding seat, driven unit (2) and middle and front and back member hinges consist of by front-wheel, telescopic folding for it, described front-wheel, the direction assembly, by front-wheel (4), front fork (5), the front vehicle frame articulated bracket (6) that is connected with the front fork upper end and scalable with barre, Foldable handlebar (7) forms, scalable, the barre of Foldable handlebar (7) can pull out and lock by fixing and locking device from lower part front vehicle frame articulated bracket (6), scalable, the centre portion of the left and right handlebar of Foldable handlebar (7) is hinged and is in the state of relative locking by fixing and locking device, wherein only have half of to be connected with barre, another one side of something just can fold into offside from the top when needed, form the right and left the state in the same side, the rear vehicle frame articulated bracket (11) that described trailing wheel, telescopic folding seat, driven unit (2) are connected by trailing wheel (8), integrated transmission shifting mechanism (9), footstep mechanism (10), with integrated transmission shifting mechanism (9) upper end, the telescopic folding vehicle seat (12) of the bar of usheing to seat form, and a bar can pull out and lock by fixing and locking device from rear vehicle frame articulated bracket (11), described four connecting rod folding stand assemblies (3) are by the folding four-bar linkage in centre (13), not only form the front hinged sleeve pipe (14) of turnable socket and hinged with two places, four-bar linkage up and down but also form rear hinged sleeve pipe (15) composition of turnable socket with rear vehicle frame articulated bracket (11) respectively with front vehicle frame articulated bracket (6) with two places, four-bar linkage up and down are hinged respectively, when four connecting rod folding stand assemblies (3) when being become bicycle rack by horizontal open, all unequal by front hinged sleeve pipe (14) and rear hinged sleeve pipe (15) with middle folding four-bar linkage (13) mutually hinged formed former and later two tetragonal four limits, if be flexibly connected the position of axle between appropriate selection four connecting rods, can allow described four connecting rod folding stand assemblies (3) form dexterously and its turnable front-wheel that is socketed, telescopic folding is direction assembly and trailing wheel, the telescopic folding seat, driven unit is parallel when folding the width that is compressed to baggage car, and can form needed angle of inclination with ground separately when it is launched into bicycle rack, a kind of stable trapezoidal state, described front-wheel, telescopic folding is direction assembly (1) and trailing wheel, the telescopic folding seat, they all can turn to driven unit (2), and they can lock when all turning 90 degrees to same direction, when four connecting rod folding stand assemblies (3) in the middle of this moment are in again the baggage car width of compression and two ends parastate, two wheels of baggage car and front hinged sleeve pipe (14) after folding have just been formed, rear hinged sleeve pipe (15) is parallel state all, car load can be by being drawn out, fold into monolateral telescopic folding handlebar (7) and draw row as handle, described collapsible four-bar linkage and front hinged sleeve pipe (14) and rear hinged sleeve pipe (15) hinged both sides connecting rod one side respectively are single tubes, opposite side is two-tube setting, single tube is in the centre, the single tube that is connected by pitman shaft with it is clamped in the two-tube outside that is placed on, and so just forms more stable, symmetrical, the stressed uniform movable four-bar linkage that is made of six roots of sensation metal tube, described four connecting rod folding stand assemblies (3), after they launch to form bicycle rack, can be by on folding four-bar linkage (13), frame locking mechanism being set, the vehicle frame of downward pressure-bearing is locked after being opened to assigned position, equally, trailing wheel, telescopic folding seat, driven unit (2) also can the fixing and locking device lockings by arranging on it when rotating to assigned position.

2. a kind of foldable luggage trolley that launches to form bicycle according to claim 1, it is characterized in that, described frame locking mechanism, can a four-bar linkage locking jacking block (16) hinged with it be set two-tube side lower end extended end below folding four-bar linkage (13), be provided with trailing wheel direction-locking projection (20) and trailing wheel direction spacing preiection (21) on the casing plane on integrated transmission shifting mechanism (9), when folding four-bar linkage (13) launches to form bicycle rack, its hinged connecting rod lower surface below rear hinged sleeve pipe (15) should be parallel with large face on integrated transmission shifting mechanism (9) casing and be close to, but we will make more crossing of folding four-bar linkage (13) expansion and more higher at the beginning, we could lock four-bar linkage jacking block (16) to sideway swivel and when attempting to withstand on the breach of monotroded bar extended end of offside like this, integrated transmission shifting mechanism is comprised that the trailing wheel direction-locking projection (20) on it all rotates under folding four-bar linkage downside connecting rod, due to trailing wheel direction spacing preiection (21) higher than trailing wheel direction-locking projection (20), and more near the lower link point of connecting rod and rear hinged sleeve pipe (15), rotary course is spacing by trailing wheel direction spacing preiection (21), this moment trailing wheel should with the formed vehicle frame of four-bar linkage point-blank, like this when launching some folding four-bar linkage of crossing when falling back to the assigned position that the large face on it is close to integrated transmission shifting mechanism (9) downwards, just just crouch in trailing wheel direction-locking projection (20) with one of following hinged double link of rear hinged sleeve pipe (15), among gap between trailing wheel direction spacing preiection (21), trailing wheel direction-locking projection (20) is tightened among also just falling into the gap of two bars, the whole like this trailing wheel that turns to, the telescopic folding seat, the direction of driven unit (2) just is locked on the position of bicycle, and four-bar linkage locking this moment jacking block (16) also just holds out against on the breach of the monotroded bar extended end of offside, make folding four-bar linkage (13) limited and pinning when being deployed into assigned position of downward pressure-bearing.

3. a kind of foldable luggage trolley that launches to form bicycle according to claim 1, it is characterized in that, described footstep mechanism, can install pedal crank annex for convenience detach additional on its pedal crank, pedal crank annex for convenience detach comprises, pedal crank lock bolt (17) with knob, the special-purpose fixed cap (18) of lock bolt and bolt bearing pin (19) form, the special-purpose fixed cap of lock bolt (18) is tightened on the fine groove negative thread of the original installation in pedal crank square hole outside trim, pass the circular hole at the special-purpose fixed cap (18) of lock bolt center with the pedal crank lock bolt (17) of knob, opposite side at this lid, to pin with the pedal crank lock bolt (17) of knob with bearing pin (19) or spring cotter, allowing can be in the top rotation of the special-purpose fixed cap (18) of lock bolt with the pedal crank lock bolt (17) of knob, form running-fit, the pedal crank lock bolt (17) of this belt transect knob just can with pedal crank and its upper install can fold ride and screw off or screw on by this knob together, screw, also be provided with simultaneously each two mounting holes (34) in addition on the same position with the knob end face of the pedal crank lock bolt of knob and the special-purpose fixed cap of lock bolt that is assembled together.

4. a kind of foldable luggage trolley that launches to form bicycle according to claim 1, it is characterized in that, described front-wheel, telescopic folding are direction assembly (1), trailing wheel, telescopic folding seat, driven unit (2) respectively are equipped with a Foldable luggage rack bolt of rear end plate right angle (22) below in their outside, are used for installing Foldable luggage rack (23) and annex (24) thereof, described Foldable luggage rack (23) is by three hinged forming of the mobilizable metal rod of hollow square type, two baggage rack vertical poles (25) are hinged on baggage rack cross bar (26) two ends, on other one of this cross bar perpendicular face should two ends also be provided with Foldable luggage rack bolt of rear end plate right angle (22) on the hinged circular hole of bolt of rear end plate, but in fact only have a side to have, the other end is at the corresponding local groove that is complementary with bolt of rear end plate that only is provided with, when car load launches to form bicycle, baggage rack is folding, on bolt of rear end plate on the Foldable luggage rack bolt of rear end plate right angle (22) that is hinged on front-wheel that baggage rack cross bar (26) is vertical, two baggage rack vertical poles (25) H to H is rolled in opposite directions, that tilts a little is close together mutually with baggage rack cross bar (26), when the utility model forms baggage car, the front and back wheel arrangement in parallel, this moment, we allowed baggage rack cross bar (26) 90-degree rotation set level, swing on the bolt of rear end plate at Foldable luggage rack bolt of rear end plate right angle (22) of trailing wheel, and with the groove on it and its fastening, the parastate of two wheels is further locked, this is the state of a not load-carrying luggage in fact, if we think further to enable this Foldable luggage rack, we must be before baggage rack cross bar (26) rotation 90 degree be set level, two baggage rack vertical poles (25) are launched into the state vertical with baggage rack cross bar (26), and then rotate 90 degree and set level bolt of rear end plate fastening on Foldable luggage rack bolt of rear end plate right angle (22) with offside, pin, at last two on baggage rack annex (24) the metal tongues (27) with spring button tightly being inserted two the hollow baggage rack vertical poles (25) and the formed fixing and locking device of circular hole upper by baggage rack vertical pole (25) and that spring button is corresponding that coordinate with it pins, so a complete baggage rack has just formed.

5. a kind of foldable luggage trolley that launches to form bicycle according to claim 1, it is characterized in that, described front-wheel, telescopic folding is direction assembly (1), trailing wheel, the telescopic folding seat, driven unit (2) and four connecting rod folding stand assemblies (3), when being folded into baggage car, rear side in whole frame mass centre deflection, it is this side of integrated transmission shifting mechanism (9) deflection, can be provided with the special-purpose backpack assembly of the lighter luggage of dress, with singly play (33) special-purpose with lock of supporting they and car load a this moment, special-purpose backpack assembly comprises, special-purpose backpack (28), be connected in respectively front-wheel, the direction assembly, both shoulders bag on trailing wheel, seat, driven unit hook (29) and two the both shoulders bags that match that are arranged on special-purpose backpack top are linked with (30), on described special-purpose backpack (28), be provided with the vertical slide fastener (31) that always can move the length coupling of special-purpose backpack bottom in the place of conflicting with integrated transmission shifting mechanism (9), after slide fastener (31) pulls open, the inside is provided with the cloth bag that approaches with integrated transmission shifting mechanism (9) rear side box volume, just in time can being loaded into integrated transmission shifting mechanism (9) outshot integral body, described special use is with lock singly plays (33) and is one and strengthens singly playing of folding angle, guarantee to be close to when this singly kicks up integrated transmission shifting mechanism (9) casing rear side, in case it conflicts with the footstep mechanism that gets into smooth (10) when the utility model distortion becomes bicycle.