CN2356920Y - Full-foldable bicycle - Google Patents

Abstract

A handlebar, a handlebar vertical tube, a transverse beam, a middle vertical tube of a bicycle frame, a rear bicycle fork, pedals and a saddle of a full-foldable bicycle are all folding, wherein, the handlebar is composed of a handlebar tube, a hinged seat and a positioning device; the handlebar vertical tube is composed of a double vertical tube, an upper and a lower hinged plates and an elastic clamp; the transverse beam is composed of a beam body, a end beam and a hinged assembly; a rear clothes frame is hinged with the rear end of the beam body, and the folded structure of the middle vertical tube of a bicycle frame is same as the folded structure of the transverse beam; the rear bicycle fork is composed of a positioning top rod, a straight rod and a rear fork rod which is hinged with the straight rod; a pedal handle is divided into an upper section and a lower section which are hinged with each other; a saddle mechanism is composed of the saddle, a saddle tube, a positioning sleeve tube, a saddle bracket and a folded connecting rod. The utility model has the advantages of convenient and fast folding, convenient and fast unfolding, small folding dimension, convenient portability and convenient storage.

Description

Full-foldable bicycle

The utility model relates to a kind of bicycle, particularly Collapsible bicycle.

Bicycle is used widely in the rural area, city as a kind of short distance running vehicle.People meet the current location of automobile inconvenience in going out to handle affairs or travel on the way, very hope has a folding bicycle of carrying can supply to ride instead of walk.The not spacious people of living conditions wish that also bicycle can folding storage, in order to avoid lose.Existing folding bicycle is owing to existing following defective to can not get promoting: need use instrument when folding, volume after folding is big, inconvenience is carried, and wants bolt together after the expansion, and it is tightly then not firm to get on the bolt, goes up to such an extent that tension is inconvenient again.

In view of above-mentioned, the purpose of this utility model just provide a kind of tool free just can fold quickly and easily and launch, folding after portable again full-foldable bicycle.

For achieving the above object, the utility model is by the following technical solutions:

A kind of full-foldable bicycle is formed by connecting by handlebar, stem, crossbeam, preceding rear vehicle fork, vehicle frame neutral tube, pedal mechanism, seat mechanism, front and back wheel, chain drive, appurtenances, it is characterized in that:

Handlebar is made of left and right sides handle tube, hinged seat, handle tube registration device, and the two ends of hinged seat are hinged with left and right sides handle tube respectively, the handle tube registration device be contained on the hinged seat and with the end Xiang Ding of left and right sides handle tube;

Stem is made of two standpipes, last articulated slab, following articulated slab, elasticity card, captive joint with last articulated slab in two standpipes lower end, both rear ends of articulated slab are hinged up and down, and the front end of last articulated slab and elasticity card are hinged, the front end of articulated slab under the dop blocking of elasticity card;

Crossbeam is made of beam body, preceding end carriage, hinge assembly, and preceding end carriage is hinged with hinge assembly and beam body front end, and beam is held after one's death with the hinged back of hinge assembly clothes hanger;

The foldable structure of vehicle frame neutral tube is identical with the foldable structure of crossbeam;

Rear vehicle fork is by positioning mandril, back vent straight-bar, constitute with back vent straight-bar pivotally attached rear fork, the pin jointed end of back vent straight-bar and rear fork adopts the tongue-and-groove articulated structure, both pin jointed ends are towards rear-inclined and match, back vent straight-bar front end and axis sleeve pipe are hinged, positioning mandril and to be fixed on the down tube on axis sleeve pipe top hinged and be stuck on the cross bar of being located between two back vent straight-bars coupling hook button between two rear forks;

Pedal crank is divided into the two-section up and down that is hinged, and the hinge point of pedal crank is with locating bush;

Seat mechanism is made of vehicle seat, seat pipe, locating sleeve, saddle support, folding connecting rod, and an end of folding connecting rod is hinged with the seat pipe, and the other end and saddle support are fixed, and saddle support and locating sleeve are fixed, on the present pipe of locating sleeve cover.

Handlebar of the present utility model, stem, crossbeam front and back end, vehicle frame neutral tube, rear vehicle fork, pedal, vehicle seat are all collapsible.

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is an outside drawing of the present utility model;

Fig. 2 a is a handlebar foldable structure scheme drawing;

Fig. 2 b-2d is the three-view diagram of hinged seat;

Fig. 2 e-2f is the front view and the lateral plan of eccentric spanner;

Fig. 2 g-2h is the front view and the birds-eye view of limit plug;

Fig. 3 a is a stem foldable structure scheme drawing;

Fig. 3 b-3d is the three-view diagram of last articulated slab;

Fig. 3 e-3g is the three-view diagram of following articulated slab;

Fig. 3 h-3j is the three-view diagram of elasticity card;

Fig. 4 a is the foldable structure scheme drawing of beam body and preceding end carriage, back clothes hanger;

Fig. 4 b-4c is the front view and the lateral plan of interior articulated slab;

Fig. 4 d-4e is the front view and the lateral plan of outer articulated slab;

Fig. 5 is a rear vehicle fork foldable structure scheme drawing;

Fig. 6 is a pedal foldable structure scheme drawing;

Fig. 7 is a vehicle seat foldable structure scheme drawing;

Fig. 8 is the outside drawing after the utility model folds.

See also accompanying drawing 1.The utility model full-foldable bicycle 1 is a kind of bicycle that is formed by connecting by traditional approach by handlebar 2, stem 3, crossbeam 4, rear vehicle fork 5, pedal mechanism 6, seat mechanism 7, vehicle frame neutral tube 8, front vehicle fork, front and back wheel, chain drive, appurtenances etc.Wherein:

See also Fig. 2.Handlebar 2 is made of left handle tube 26, right handle tube 20, hinged seat 25, handle tube registration device, and the two ends of hinged seat 25 are hinged with left and right sides handle tube respectively, the handle tube registration device be contained on the hinged seat 25 and with the end Xiang Ding of left and right sides handle tube.Hinged seat 25 by front plate 251, rear plate 252, be connected in before and after the flat board 253 of clamping plate middle top surface constitute, handle tube hinge hole 254 is established at the two ends of front and back clamping plate, dull and stereotyped 253 center drilling.The handle tube registration device is made of eccentric spanner 21, hanging screw 27, top spring 24, wedge shape limit plug 29, limit plug 29 vertically has centre hole, eccentric spanner 21 is laterally hinged with Xiao's axle 22 with the upper end of hanging screw 27, after the flat board, top spring 24, limit plug 29 of pad 23, hinged seat 25 from top to bottom passed in the lower end of hanging screw 27, again with nut 28 locking, the inclined-plane, the left and right sides of limit plug 29 respectively with the end Xiang Ding of left and right sides handle tube 26 and 20.

When folding, upwards pull loose eccentric spanner 21, hanging screw 27 just moves down, and top spring 24 pushes up limit plug 29 downwards, and the inclined-plane of limit plug 29 leaves the end of left and right sides handle tube 26 and 20, and two handle tubes just can upwards fold.When desire launch to be used, put down the two ends handle, be wrenched eccentric spanner 21 downwards, hanging screw 27 will drive limit plug 29 1 the same moving, to its inclined-plane, left and right sides respectively with the end of left and right sides handle tube mutually the top screens get final product.

See also Fig. 3.Stem 3 is made of two standpipes 31, last articulated slab 32, following articulated slab 34, elasticity card 33.Last articulated slab 32 is welded by the flat board 323 of two upper ear plates 321, two lower ear plates 322, center drilling, and hinge hole is all opened in the front end of upper ear plate and the rear end of lower ear plate.Following articulated slab 34 is welded by the flat board 342 of two lower ear plates 341, center drilling.Elasticity card 33 is welded by dop 331, handle 332, articulated pipe 333, two top spring abutments 334.The lower end of two pairs of standpipes 31 respectively with two upper ear plates 321 welding of last articulated slab 32, two upper ear plates 321 are used bolted splice with elasticity card 33, put two top springs in two top spring abutments 334 of elasticity card 33 and between the flat board 323 of last articulated slab 32.Both rear ends of articulated slab are hinged with bolt up and down, following articulated slab 34 and handlebar pipe 35 welding down.But the front end of articulated slab 34 under dop 331 blockings of elasticity card 33.Number in the figure 36,37 is respectively taper and hangs tight nut and hanging bolt.

After the handle 332 that pinches elasticity card 33 with left hand when folding is upwards pulled and is broken away from screens to dop 331, the two standpipes 31 of handlebar backward switching to being close to crossbeam, and two standpipe 31 apportion crossbeam both sides.When desire was launched to use, switching stem 31 was to resetting forward, and the card of switching elasticity again 33 blocks down articulated slab 34 to its dop 331 and gets final product, and two top springs of elasticity card 33 make dop 331 can not dislocate.

See also Fig. 4.Crossbeam 4 is made of beam body 40, preceding end carriage 47, hinge assembly, and preceding end carriage 47, back clothes hanger 48 use the front and back ends of hinge assembly and beam body 40 hinged respectively.Hinge assembly is made of locator card, interior articulated slab 42, outer articulated slab 44.The board central authorities of inside and outside articulated slab all have and hold the hole 421 (441) that locating button passes through, and ear with holes 422 (442) is vertically extended in the both sides, lower end of board.

At the crossbeam front end: interior articulated slab 42, outer articulated slab 44 are tilting forward, interior articulated slab 42 and 40 welding of beam body, at ear's welding central siphon 43 of interior articulated slab, penetrate bolt the ear 422 of interior articulated slab and the ear 442 of outer articulated slab are hinged, outer articulated slab 44 and preceding end carriage 47 welding.Locator card is the locating button 41 that has hook portion, respectively weld a locating bush 46 at preceding end carriage about 47, in locating bush 46 and locating button 41, penetrate bolt, locating button 41 and preceding end carriage 47 is hinged, articulated slab 42 in hooking behind the hole outside the hook portion of locating button 41 is passed through, on the interior articulated slab, locating button 41 is by top spring member 45 location of end carriage 47 bottoms before being welded on.Label is preceding standpipe, and itself and preceding end carriage 47 weld.Stir the shank of locating button 41 forward with the right hand, treat that its hook portion dislocation back catches the handlebar anticlockwise direction firmly with left hand, preceding end carriage can fold.The handlebar cw is firmly resetted, under the 45 elastic force effects of locating button 41 top spring members, just can be with, inside and outside articulated slab chucking.

In the crossbeam rear end: interior articulated slab 42, outer articulated slab 44 are tilting backward, interior articulated slab 42 and 40 welding of beam body, and outer articulated slab 44 and 48 welding of back clothes hanger, the ear of inside and outside articulated slab is hinged by aforementioned manner, locator card 49 and 48 welding of back clothes hanger.Upwards lift chain stay slightly with left hand, right hand clockwise direction is exerted oneself, and back clothes hanger 48 is promptly collapsible.Only need the right hand to catch back clothes hanger conter clockwise firmly can reset during expansion.

Vehicle frame neutral tube 8 also can fold back, and its foldable structure is identical with the preceding foldable structure of crossbeam shown in Figure 4.

See also Fig. 5.Rear vehicle fork 5 is by positioning mandril 51, back vent straight-bar 52, constitute with back vent straight-bar 52 pivotally attached rear forks 54, both pin jointed ends of back vent straight-bar 52 and rear fork 54 adopt the tongue-and-groove articulated structure, both pin jointed ends are towards rear-inclined and match, back vent straight-bar 52 front ends and axis sleeve pipe 55 are hinged, positioning mandril 51 and to be fixed on the down tube 56 on axis sleeve pipe 55 tops hinged and be stuck on the cross bar of being located at 52 of two back vent straight-bars coupling hook button 57 between two rear forks 54.53 is magnet.

Upwards dialling earlier when folding changes positioning mandril 51, upwards mentions rear vehicle fork again, and under the action of gravity of trailing wheel, back clothes hanger and rear vehicle fork will foldingly downwards simultaneously put in place, uses to be arranged on the fastener 57 that the hook 49 under the beam body 40 hooks between two rear forks 54 and to get final product again.After this magnetic force of magnet 53 is close on the down tube 56 positioning mandril 51.When desire launch to be used, only need to throw off hook 49, depress rear vehicle fork, put down positioning mandril 51 again and it is put in place get final product.

See also Fig. 6.The shank of pedal 6 is divided into the two-section up and down 61 and 62 that is hinged, and the hinge point of pedal crank is with locating bush 63, and groove is established in upward cutting on 61 of pedal crank, holds steel ball 64 and top spring 65 in the groove, has on the locating bush 63 and steel ball 64 cooresponding knock holees.On pedal crank, cut dress people's top spring 65 and steel ball 64 in 61 the groove, put locating bush 63 after, with Xiao's axle will go up cut 61 and following section 62 hinged.Move inward locating bush 63, it is parallel with wheel that following section 62 of pedal crank promptly is foldable to stretcher.To reset for following section 62 during use, outwards the running fix cover 63, headed into the knock hole of locating bush 63 by top spring 65 to steel ball 64 till, locating bush 63 just can not be free to slide.

See also Fig. 7.Seat mechanism is made of vehicle seat, seat pipe 74, locating sleeve 75, saddle support 73, folding connecting rod 71, one end of folding connecting rod 71 is hinged with seat pipe 74, the other end and rod hinge connection seat 72 are hinged, rod hinge connection seat 72 and saddle support 73 welding, saddle support 73 and locating sleeve 75 welding are on the present pipe 74 of locating sleeve 75 covers.When folding, hold up saddle support 73 to locating sleeve 75 with the right hand and break away from seat pipe 74, but just clickwise postposition of whole seat mechanism.With saddle support 73 left-hand revolutions, make locating sleeve 75 overlap the pipe 74 of taking a seat and get final product during expansion.In addition, also can manage hook, fastener are installed respectively on 74, be held up unintentionally to avoid seat mechanism at locating sleeve 75 and seat.

The utility model also is provided with fastener on the mudwing of front-wheel, hook is set in crossbeam bottom, so that hook front-wheel during folding front-axle beam, is provided with handle at the crossbeam middle part, is convenient to behind the bicycle folding portable.

The utility model can fold in the following order: the crossbeam front end is rolled over downwards, again with crossbeam hook fastener → stem on the front wheel guard roll over backward to be close to crossbeam → handlebar upwards rolls over 90 degree and is close to stem both sides → folding rear vehicle fork, hooks fastener → folding pedals on the rear vehicle fork → fold vehicle seat → folding stand neutral tube with the crossbeam aft hook.Full car is folding just to become shape shown in Figure 8 after finishing, and its oad is 940mm * 560mm * 170mm only, and complete vehicle weight is adopting under the steel main support situation only 14kg, and a handle that holds on the crossbeam can be mentioned.If the employing new material, then complete vehicle weight also is expected to alleviate.

Related angle when the utility model launch to use and size are all with reference to the specifications design of 26 inches bicycles, for making volume after folding small and exquisite, adopt 16 inches wheels supporting, for remedying the deficiency of trundle riding speed, chain drive of the present utility model is except comprising drive sprocket, driven sprocket and chain, a speedup intermediate chain wheel also has been installed at the rear vehicle fork place, this speedup intermediate chain wheel is the double-stranded wheel of disjunctor, and wherein the diameter of the sprocket wheel that is driven by drive sprocket is less than the diameter of the sprocket wheel that drives driven sprocket.When riding like this, its comfort and speed sense all can be similar with 26 inches bicycles.

The utility model has made full use of the action principle of each component in design, make this car to be provided with in order to increase the binding bolt of steadiness at any folding movable position, but according to the needs of structure, use the direction of each position application force, adopt the method for card, folder, top, cover to design the structure of each burst, therefore this car is when stored collapsed or expansion use, and its operating process need not to use any instrument just can finish in one minute.

The utility model is attached great importance to the compactedness after folding, and folded size is very little, carry deposit all very convenient.

The utility model has taken into full account each parts bonded assembly globality in design, under the situation of serviceable tool not, any one parts of car load are not all allowed free-hand decomposition.

Below only be preferred embodiment of the present utility model, any based on equivalents of the present utility model, all should be within protection domain of the present utility model.

Claims (8)

1. a full-foldable bicycle is formed by connecting by handlebar, stem, crossbeam, preceding rear vehicle fork, vehicle frame neutral tube, pedal mechanism, seat mechanism, front and back wheel, chain drive, appurtenances, it is characterized in that:

Handlebar is made of left and right sides handle tube, hinged seat, handle tube registration device, and the two ends of hinged seat are hinged with left and right sides handle tube respectively, the handle tube registration device be contained on the hinged seat and with the end Xiang Ding of left and right sides handle tube;

Stem is made of two standpipes, last articulated slab, following articulated slab, elasticity card, captive joint with last articulated slab in two standpipes lower end, both rear ends of articulated slab are hinged up and down, and the front end of last articulated slab and elasticity card are hinged, the front end of articulated slab under the dop blocking of elasticity card;

Crossbeam is made of beam body, preceding end carriage, hinge assembly, and preceding end carriage is hinged with hinge assembly and beam body front end, and beam is held after one's death with the hinged back of hinge assembly clothes hanger;

The foldable structure of vehicle frame neutral tube is identical with the foldable structure of crossbeam;

Rear vehicle fork is by positioning mandril, back vent straight-bar, constitute with back vent straight-bar pivotally attached rear fork, the pin jointed end of back vent straight-bar and rear fork adopts the tongue-and-groove articulated structure, both pin jointed ends are towards rear-inclined and match, back vent straight-bar front end and axis sleeve pipe are hinged, positioning mandril and to be fixed on the down tube on axis sleeve pipe top hinged and be stuck on the cross bar of being located between two back vent straight-bars coupling hook button between two rear forks;

Pedal crank is divided into the two-section up and down that is hinged, and the hinge point of pedal crank is with locating bush;

Seat mechanism is made of vehicle seat, seat pipe, locating sleeve, saddle support, folding connecting rod, and an end of folding connecting rod is hinged with the seat pipe, and the other end and saddle support are fixed, and saddle support and locating sleeve are fixed, on the present pipe of locating sleeve cover.

2. full-foldable bicycle as claimed in claim 1 is characterized in that:

Hinged seat on the described handlebar is made of front and back clamping plate, the flat board that is connected in described front and back clamping plate middle top surface, and the handle tube hinge hole is established at the two ends of described front and back clamping plate, the center drilling of described flat board;

Described handle tube registration device is made of eccentric spanner, hanging screw, top spring, wedge shape limit plug, described limit plug vertically has centre hole, the upper end of described eccentric spanner and described hanging screw is laterally hinged with, the lower end of described hanging screw is from top to bottom passed behind the flat board of described hinged seat, described top spring, the described limit plug with the nut locking, the inclined-plane, the left and right sides of described limit plug respectively with the end Xiang Ding of left and right sides handle tube.

3. full-foldable bicycle as claimed in claim 1 is characterized in that:

Hinge assembly on the described crossbeam is by locator card, interior articulated slab, outer articulated slab constitutes, in described, the board central authorities of outer articulated slab have and hold the hole that described locator card passes through, and ear with holes is vertically extended in the both sides, lower end of board, articulated slab is captiveed joint with described beam body in described, described be used for hinged before end carriage in, outer articulated slab is tilting forward, and its outer articulated slab is captiveed joint with described preceding end carriage, described be used for hinged back clothes hanger in, outer articulated slab is tilting backward, and its outer articulated slab is captiveed joint with described back clothes hanger, described in, both ears of outer articulated slab are hinged;

Be used for and preceding end carriage pivotally attached hinge assembly, described locator card is one to have the locating button of hook portion, itself and described before end carriage hinged, that the hook portion of described locating button is passed through is outer, hook interior articulated slab behind the hole on the interior articulated slab, described locating button is located by top spring member;

Be used for and back clothes hanger pivotally attached hinge assembly, described locator card is captiveed joint with described back clothes hanger.

4. full-foldable bicycle as claimed in claim 1 is characterized in that: establish groove on the described pedal crank, hold steel ball and top spring in the described groove, have on the described locating bush and the cooresponding knock hole of described steel ball.

5. full-foldable bicycle as claimed in claim 1 is characterized in that: on locating sleeve on the described seat mechanism and the seat pipe hook, fastener are installed respectively.

6. full-foldable bicycle as claimed in claim 1, it is characterized in that: described chain drive is made of drive sprocket, speedup intermediate chain wheel, driven sprocket and chain, the speedup intermediate chain wheel is the double-stranded wheel of disjunctor, and wherein the diameter of the sprocket wheel that is driven by drive sprocket is less than the diameter of the sprocket wheel that drives driven sprocket.

7. full-foldable bicycle as claimed in claim 1 is characterized in that: on the mudwing of described front-wheel fastener is set, described crossbeam bottom is provided with hook.

8. full-foldable bicycle as claimed in claim 1 is characterized in that: described crossbeam middle part is provided with handle.

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