CN204415633U - Six link rod quick-folding formula portable bicycles - Google Patents

Abstract

A kind of six link rod quick-folding formula portable bicycles, comprise six link rod folded bicycle beams, front head tube, seat pipe, saddle, front fork, back vent, five-way connecting leg, five-way, V-shaped folding hand handle, front-wheel, trailing wheel and driver train, six link rod folded bicycle beams comprise front foldable base, rear foldable base, front-axle beam pipe, back rest pipe, rotating vane, flute profile folded piece, Connection Block, car beam latch hook, front rod and rear linking rod, six link rod folded bicycle beams are connected to front head tube and seat pipe, seat pipe welding back vent and five-way connecting leg, five-way connecting leg connects five-way, back vent installs trailing wheel, head tube and front-wheel before front fork connects, saddle install is managed in seat, V-shaped folding hand handle is connected with front wheel carrier, driver train comprises axis, crank, chain wheel, pedal, flywheel and chain, driver train is connected to Five-way tube and the trailing wheel of front wheel carrier.

Description

Six link rod quick-folding formula portable bicycles

technical field:

The utility model relates to a kind of folding portable bicycle, particularly a kind of six link rod quick-folding formula portable bicycles.

technical background:

Several money folding bicycles that the design people formerly designs, although the folding portable bicycle having that folding rate is fast, fold smaller, due to the reason such as structure and structure, still fail to reach promising result little as far as possible after folding.

utility model content:

The purpose of this utility model to provide a kind of car beam to be the six link rod quick-folding formula portable bicycles that six link rods fold.The purpose of this utility model realizes like this, six link rod quick-folding formula portable bicycles, comprise six link rod folded bicycle beams, front head tube, seat pipe, saddle, locator card, front fork, back vent, five-way connecting leg, five-way, V-shaped folding hand handle, front-wheel, trailing wheel and driver train, it is characterized in that: six link rod folded bicycle beams comprise front foldable base, rear foldable base, front-axle beam pipe, back rest pipe, rotating vane, flute profile folded piece, Connection Block, car beam latch hook, front rod and rear linking rod, front foldable base is opening flute profile stamping backwards, the upper and lower of front foldable base flute profile both sides respectively has one mutual to perforation, front foldable base is welded in the rear side in the middle part of front head tube, rear foldable base is opening flute profile stamping forward, the upper and lower of rear foldable base flute profile both sides respectively has one mutual to perforation, rear foldable base is welded in a front side for pipe bottom, the front end welding rotating vane of front-axle beam pipe, the rear end welding flute profile folded piece of front-axle beam pipe, flute profile folded piece is the flute profile stamping that Open Side Down, the front and rear of flute profile folded piece both sides respectively has one mutual to perforation, the rotating vane being welded in front-axle beam pipe is by lock bolt and mutual being rotationally connected perforation in front foldable base top, back rest pipe rear end welding rotating vane, the below of back rest pipe front end is welded to connect seat, in the pore of back rest pipe front end, car beam latch hook and torsion spring are also installed, the rotating vane being welded in back rest pipe is by lock bolt and mutual being rotationally connected perforation in rear foldable base top, flute profile folded piece rear portion mutual to perforation by lock bolt and mutual being rotationally connected perforation in front portion of Connection Block, front foldable base bottom mutual to perforation by enclosing be rotationally connected before lock bolt and front rod, front rod is that the two ends of the Metallic rod of a flat strip shaped respectively connect a circle, the rear circle of front rod is by lock bolt and mutual being rotationally connected perforation in Connection Block rear portion, mutual perforation is connected with the rear end thereof of rear linking rod in rear foldable base bottom, it is anterior mutual to perforation that the front end of rear linking rod is rotationally connected with flute profile folded piece, car beam latch hook in the pore of back rest pipe front end is under the effect of torsion spring, the top margin of flute profile folded piece rear end can be pinned, the bottom welding back vent of seat pipe, trailing wheel is installed in the rear end of back vent, five-way connecting leg is welded in the bottom of rear foldable base and the front side of seat pipe lower end, the front end welding Five-way tube of five-way connecting leg, front fork and front head tube are rotationally connected, and front fork connects front-wheel, saddle install is in the top of seat pipe, locator card is connected to the top of back rest pipe front portion, and locator card is the Plastic Parts of a band C shape bayonet socket, and locator card can fasten the saddle pipe of saddle after six link rod folded bicycle beams fold, V-shaped folding hand handle is quick interlocking formula V-shaped folding hand handle, comprise hand pedestal, left hand handle, right handgrip, left lock-connecting piece, right lock-connecting piece, hand is made up of pedestal pedestal moulding and interior poling, interior poling injection moulding is in pedestal moulding, the right and left of pedestal moulding has groove, the right and left top of pedestal moulding is U-lag, bottom is flat-bottom slot, the both sides of pedestal moulding the right and left flat-bottom slot respectively have one mutual to perforation, hand coordinates pedestal with bowl-type pad by interior poling, hanging bolt and slope nut, be fixedly connected in front fork tube, left hand is the parts being connected cast with the right handgrip bottom that is pipe, the plagiocephaly barrel of the left lock-connecting piece of lower weld of left hand handle, left lock-connecting piece is by a plagiocephaly barrel, one round head bolt and a nut are formed, twist in plagiocephaly barrel and connect round head bolt, the stubborn place of connecing of round head bolt and plagiocephaly barrel also twists and connects a nut, the channel of the right lock-connecting piece of lower weld of right handgrip, right lock-connecting piece is by channel, latch hook, to connecting bolt, spring and dowel bolt are formed, the both sides up and down of the flute profile left part of channel have mutual to perforation, a tapped bore is had in the middle part of the flute profile of channel, the upper and lower both sides of channel mutual to perforation by being rotationally connected the collar aperture in the middle part of connecting bolt and latch hook, latch hook is that left end becomes hook-type, there is collar aperture at middle part, the parts of right part band handle, the handle of latch hook there is an elongated hole, spring is positioned between the tapped bore of channel and the elongated hole of latch hook, penetrate with dowel bolt in the elongated hole of latch hook with in spring, be screwed into again in the tapped bore of channel, the cast of left hand handle and the cast of right handgrip, by two to lock bolt, be rotationally connected with respectively pedestal moulding the right and left mutual to perforation, the latch hook of right lock-connecting piece under the action of the spring, hook the round head bolt of left lock-connecting piece and realize interlocking, driver train comprises axis, crank, chain wheel, pedal, flywheel and chain, axis is rotationally connected with in five-way by axis accessory, two cranks are fixedly connected on two of axis, chain wheel is fixed on right crank, two pedals are connected to two cranks, flywheel is connected to the right side of trailing wheel, and chain is wire-wrapped in chain wheel and flywheel.

The beneficial effects of the utility model are: the utility model adopts car beam to be six link rod folded bicycle beams, six link rod folded bicycle beams can be made together with front head tube and seat pipe fast folding and rapid deployment, coordinate quick interlocking formula V-shaped folding hand handle again, folding and expansion of the present utility model is made to have more advantage, achieve not only fast but also little folding, five-way connecting leg is set by between five-way and seat pipe, the sheet-prevalent of this car can be played better.

accompanying drawing illustrates:

Fig. 1 is the utility model structural representation

Fig. 2 is the constructional drawing of the utility model six link rod folded bicycle beam

Fig. 3 is the organigram of the utility model rear linking rod

Fig. 4 is that the utility model hand is the organigram of pedestal

Fig. 5 is the constructional drawing of the left lock-connecting piece of the utility model and right lock-connecting piece

Fig. 6 is the utility model folding process schematic diagram

Fig. 7 is that the utility model folds complete figure

In figure: 1---six link rod folded bicycle beams, 2---front head tube, 31---seat pipe, 32---saddle, 33---locator card, 4---front fork, 51---back vent, 52---five-way connecting leg, 53---five-way, 6---V-shaped folding hand handle, 7---front-wheel, 8---trailing wheel, 9---driver train; Wherein six link rod folded bicycle beams 1 also comprise: 111---front foldable base, and 112---rear foldable base, 121---front-axle beam pipe, 122---back rest pipe, 13---rotating vane, 14---flute profile folded piece, 15---Connection Block, 16---car beam latch hook, 17---front rod, 18---rear linking rod; V-shaped folding hand also comprises 6: 61---hand pedestal, 62---left hand handle, 63---right handgrip, 64---left lock-connecting piece, 65---right lock-connecting piece; Left lock-connecting piece 64 also comprises: 641---plagiocephaly barrel, and 642---round head bolt, 643---nut; Right lock-connecting piece 65 also comprises: 651---channel, and 652---latch hook, 653---to connecting bolt, 654---spring, 655---dowel bolt.

detailed description of the invention:

According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, six described link rod quick-folding formula portable bicycles, comprise six link rod folded bicycle beams 1, front head tube 2, seat pipe 31, saddle 32, locator card 33, front fork 4, back vent 5, V-shaped folding hand 6, front-wheel 7, trailing wheel 8 and driver train 9;

Six described link rod folded bicycle beams 1 comprise front foldable base 111, rear foldable base 112, front-axle beam pipe 121, back rest pipe 122, rotating vane 13, flute profile folded piece 14, Connection Block 15, car beam latch hook 16, front rod 17 and rear linking rod 18, described front foldable base 111 is opening flute profile stampings backwards, the upper and lower of described front foldable base 111 flute profile both sides respectively has one mutual to perforation, described front foldable base 111 is welded in the rear side in the middle part of front head tube 2, described rear foldable base 112 is opening flute profile stampings forward, the upper and lower of described rear foldable base 112 flute profile both sides respectively has one mutual to perforation, described rear foldable base 112 is welded in the front side of a pipe 31 bottom.

Described front-axle beam pipe 121 is rectangular tubes, the front end welding rotating vane 13 of described front-axle beam pipe 121, described rotating vane 13 is sheet components of upper end band cast, the rear end welding flute profile folded piece 14 of described front-axle beam pipe 121, described flute profile folded piece 14 is flute profile stampings that Open Side Down, the front and rear of described flute profile folded piece 14 both sides respectively has one mutual to perforation, be welded in the cast of the described rotating vane 13 of described front-axle beam pipe 121, by to lock bolt and mutual being rotationally connected perforation in described front foldable base 111 top, described back rest pipe 122 is rectangular tubes, rotating vane after the rear end welding of described back rest pipe 122, the below of described back rest pipe 122 front end is welded to connect seat 15, described Connection Block 15 is flute profile stampings, the both sides of described Connection Block 15 flute profile front and rear respectively have one mutual to perforation, go back close-fitting in the pore of described back rest pipe 122 front end and be socketed one section of rectangular tube as reinforcement, the left and right sides of described back rest pipe 122 front end, inconjunction with socket wherein one section of rectangular tube has one mutual to perforation together, the top of described back rest pipe 122 front end, inconjunction with socket wherein one section of rectangular tube has an elongated hole together, the top of described back rest pipe 122 front portion also has tapped bore, described car beam latch hook 16 is bottoms is cast, top is the sliced pieces of the Al squeezing material of hook-type, the middle part of described car beam latch hook 16 becomes rod, one of the cast of described car beam latch hook 16 is penetrated from the top down in described back rest pipe 122 elongated hole, and by the cast of described car beam latch hook 16 correspond to described back rest pipe 122 mutual to perforation, put into torsion spring again, make torsion spring lower tube wall pushed down in one section of rectangular tube pore, one of torsion spring is made to push down on described car beam latch hook 16 rod, again with to lock bolt penetrate described back rest pipe 122 mutual to perforation in, in torsion spring collar aperture and in the collar aperture of described car beam latch hook 16 cast, and to stubborn location, the cast of described rotating vane 13 is welded with described back rest pipe 122 rear end, by to lock bolt and mutual being rotationally connected perforation in described rear foldable base 112 top.

Described flute profile folded piece 14 rear portion mutual to perforation by mutual being rotationally connected perforation in front portion of lock bolt and described Connection Block 15, described front foldable base 111 bottom mutual to perforation by enclosing be rotationally connected before lock bolt and front rod 17, described front rod 17 is that the two ends of the Metallic rod of a flat strip shaped respectively connect a circle, the rear circle of described front rod 17 is by lock bolt and described mutual being rotationally connected perforation in Connection Block 15 rear portion, mutual perforation is connected with the rear end thereof of rear linking rod 18 in described rear foldable base 112 bottom, it is anterior mutual to perforation that the front end of described rear linking rod 18 is rotationally connected with described flute profile folded piece 14, described rear linking rod 18 comprises left connecting rod, right connecting rod and barrel, left connecting rod and right connecting rod are the right-angle bendings that the two ends of two metal round rod become in the same way, then left connecting rod and the paired shape of right connecting rod coordinate, the bending part of described left connecting rod and described right connecting rod rear end has screw thread, the bending part of described left connecting rod and described right connecting rod front end has pin-and-hole, barrel has attacked screw thread in the pore of a tubular piece, barrel is positioned over described rear foldable base 112 bottom mutual to perforation between, with the screw thread of described left connecting rod and described right connecting rod rear end bending part penetrate respectively described rear foldable base 112 top mutual in perforation, with be screwed in the tapped bore of barrel, namely complete described rear linking rod 18 and described rear foldable base 112 bottom mutual to being rotationally connected of boring a hole, the bending part of described left connecting rod and described right connecting rod front end is buckled into respectively described flute profile folded piece 14 anterior mutual in perforation, and overlap Upper gasket, pin location on pin, namely described rear linking rod 18 and described flute profile folded piece 14 is completed anterior mutual to being rotationally connected of boring a hole, be arranged in the described car beam latch hook 16 of the pore of described back rest pipe 122 front end, the top margin of described flute profile folded piece 14 rear end can be pinned under the effect of torsion spring.

Described seat pipe 31 is made up of pipe and pipe clamp, the left and right sides of described seat pipe 31 pipe bottom has arc opening, the arc opening welding back vent 51 of the left and right sides, described seat pipe 31 pipe bottom, the top of described seat pipe 31 pipe also has vertical cracking, the top socket pipe clamp of described seat pipe 31 pipe, described back vent 51 is that a pipe bends to U-shaped, the parts of two rear ends flattenings of U-shaped, flattening place of described back vent 51 liang of rear ends has U-shaped gap, the U-shaped gap of described back vent 51 liang of rear ends installs trailing wheel 8, described trailing wheel 8 is inflated wheel of 8 inches, described saddle 32 is connected with saddle pipe, the saddle pipe of described saddle 32 is connected in the pipe pore of described seat pipe 31, described locator card 33 is one with the Plastic Parts of C shape bayonet socket, the centre of described locator card 33 has to twist and connects hole, the stubborn of described locator card 33 connects the tapped bore that hole corresponds to described back rest pipe 122 front portion, and by bolt, described locator card 33 is connected to the front portion of described back rest pipe 122, the C shape bayonet socket of the described locator card 33 after being connected with described back rest pipe 122 tapped bore, the saddle pipe of the described saddle 32 after folding corresponding to described six link rod folded bicycle beams 1, and the C shape bayonet socket of described locator card 33 can engage with the saddle pipe of described saddle 32.

Described five-way connecting leg 52 is pipes, the both sides up and down of the rear end of described five-way connecting leg 52 have arc opening, the arc opening of the rear end of described five-way connecting leg 52 is corresponding with the external diameter of described seat pipe 31 pipe, the arc opening of the rear end of described five-way connecting leg 52 welds with the front side of described seat pipe 31 pipe bottom, and, the upper side of the rear end of described five-way connecting leg 52 is welded in the left and right sides of described rear foldable base 112 bottom simultaneously, the left and right sides of the front end of described five-way connecting leg 52 has arc opening, the arc opening of the front end of described five-way connecting leg 52 is corresponding with the external diameter of described five-way 53, and weld with described five-way 53.

Described front fork 4 by seven bowls and described before head tube 2 be rotationally connected, described front fork 4 connects front-wheel 7, and described front-wheel 7 is inflated wheel of 8 inches.

Described V-shaped folding hand is 6, comprise hand pedestal 61, left hand is 62, right handgrip 63, left lock-connecting piece 64, right lock-connecting piece 65, described hand is made up of pedestal 61 pedestal moulding and interior poling, described interior poling comprises pipe and two bolts, the outer tube diameter gear hobbing on described interior poling pipe top, the lower end of described interior poling pipe is with angle, a bolt is respectively welded in the both sides on described interior poling pipe top, the bolt that the related both sides, top of described interior poling connect together injection moulding in described pedestal moulding, described pedestal moulding becomes upper base long, to go to the bottom short isosceles trapezoid shape, the right and left of described pedestal moulding has groove, the groove on the described pedestal moulding left side is opening groove left, groove on the right of described pedestal moulding is opening groove to the right, the right and left top of described pedestal moulding is U-lag, bottom is flat-bottom slot, the U-lag of the right and left of described pedestal moulding with described left hand corresponding for the caliber of 62 and described right handgrip 63, the both sides of described pedestal moulding the right and left flat-bottom slot respectively have one mutual to perforation, described hand is poling in pedestal 61, coordinate bowl-type pad, hanging bolt and slope nut, penetrate in the front fork tube of described front fork 4, tighten hanging bolt, slope nut and described hand is made poling in pedestal 61 to be tightened up and misplace, thus make described hand that poling in pedestal 61 is fixedly connected in front fork tube, described left hand is 62 and described right handgrip 63, connected and composed by pipe and cast, described left hand is 62 and the pipe upper bend of described right handgrip 63, described left hand is connected cast 62 with the bottom of described right handgrip 63 pipe.

Described left lock-connecting piece 64 is by a plagiocephaly barrel 641, one round head bolt 642 and a nut 643 are formed, described plagiocephaly barrel 641 is that an of barrel makes plagiocephaly, the head of described plagiocephaly barrel 641 and described left hand are the lower weld of 62, twist in the tapped bore of described plagiocephaly barrel 641 and connect described round head bolt 642, the nut 643 connect described in one is also twisted at the stubborn place of connecing of described round head bolt 642 and described plagiocephaly barrel 641, described right lock-connecting piece 65 is by channel 651, latch hook 652, to connecting bolt 653, spring 654 and dowel bolt 655 are formed, described channel 651 is opening flute profiles backward, the right head of described channel 651 is plagiocephaly, the both sides up and down of described channel 651 flute profile left part have mutual to perforation, a tapped bore is had in the middle part of the flute profile of described channel 651, the right head of described channel 651 and the lower weld of described right handgrip 63, mutual perforation is rotationally connected connecting bolt 653 and the collar aperture in the middle part of described latch hook 652 by described in described channel about 651 both sides, described latch hook 652 is that left end becomes hook-type, there is collar aperture at middle part, the parts of right part band handle, the handle of described latch hook 652 there is an elongated hole, the elongated hole of described latch hook 652 is corresponding with the tapped bore of described channel 651, between the tapped bore that described spring 654 is positioned over described channel 651 and the elongated hole of described latch hook 652, penetrate in spring 654 in the elongated hole of described latch hook 652 He described with described dowel bolt 655, be screwed into again in the tapped bore of described channel 651.

Described left hand is the cast of the cast of 62 and described right handgrip 63, by two to lock bolt, be rotationally connected with respectively described pedestal moulding the right and left mutual to perforation, left hand described in expansion is 62 and described right handgrip 63, the described latch hook 652 of described right lock-connecting piece 65 is under the effect of described spring 654, the described round head bolt 642 of described left lock-connecting piece 64 can be hooked instantaneously, mutual interlocking between described right lock-connecting piece 65 and described left lock-connecting piece 64, the left hand described in realization 62, described right handgrip 63 and described hand be interfixing between pedestal 61.

Described driver train 9 comprises axis, crank, chain wheel, pedal, flywheel and chain, described axis is rotationally connected with in described five-way 53 by axis accessory, crank described in two is fixedly connected on two of described axis, described chain wheel is fixed on right crank, pedal described in two is connected to crank described in two, described pedal is folding pedals, and described flywheel is connected to the right side of described trailing wheel 8, and described chain is wire-wrapped in described chain wheel and described flywheel.

Claims (10)

1. a link rod quick-folding formula portable bicycle, comprise six link rod folded bicycle beams, front head tube, seat pipe, saddle, locator card, front fork, back vent, five-way connecting leg, five-way, V-shaped folding hand handle, front-wheel, trailing wheel and driver train, it is characterized in that: six link rod folded bicycle beams comprise front foldable base, rear foldable base, front-axle beam pipe, back rest pipe, rotating vane, flute profile folded piece, Connection Block, car beam latch hook, front rod and rear linking rod, front foldable base is opening flute profile stamping backwards, the upper and lower of front foldable base flute profile both sides respectively has one mutual to perforation, front foldable base is welded in the rear side in the middle part of front head tube, rear foldable base is opening flute profile stamping forward, the upper and lower of rear foldable base flute profile both sides respectively has one mutual to perforation, rear foldable base is welded in a front side for pipe bottom, the front end welding rotating vane of front-axle beam pipe, the rear end welding flute profile folded piece of front-axle beam pipe, flute profile folded piece is the flute profile stamping that Open Side Down, the front and rear of flute profile folded piece both sides respectively has one mutual to perforation, the rotating vane being welded in front-axle beam pipe is by lock bolt and mutual being rotationally connected perforation in front foldable base top, back rest pipe rear end welding rotating vane, the below of back rest pipe front end is welded to connect seat, in the pore of back rest pipe front end, car beam latch hook and torsion spring are also installed, the rotating vane being welded in back rest pipe is by lock bolt and mutual being rotationally connected perforation in rear foldable base top, flute profile folded piece rear portion mutual to perforation by lock bolt and mutual being rotationally connected perforation in front portion of Connection Block, front foldable base bottom mutual to perforation by enclosing be rotationally connected before lock bolt and front rod, front rod is that the two ends of the Metallic rod of a flat strip shaped respectively connect a circle, the rear circle of front rod is by lock bolt and mutual being rotationally connected perforation in Connection Block rear portion, mutual perforation is connected with the rear end thereof of rear linking rod in rear foldable base bottom, it is anterior mutual to perforation that the front end of rear linking rod is rotationally connected with flute profile folded piece, car beam latch hook in the pore of back rest pipe front end is under the effect of torsion spring, the top margin of flute profile folded piece rear end can be pinned, the bottom welding back vent of seat pipe, trailing wheel is installed in the rear end of back vent, five-way connecting leg is welded in the bottom of rear foldable base and the front side of seat pipe lower end, the front end welding Five-way tube of five-way connecting leg, front fork and front head tube are rotationally connected, and front fork connects front-wheel, saddle install is in the top of seat pipe, locator card is connected to the top of back rest pipe front portion, and locator card is the Plastic Parts of a band C shape bayonet socket, and locator card can fasten the saddle pipe of saddle after six link rod folded bicycle beams fold, V-shaped folding hand handle is quick interlocking formula V-shaped folding hand handle, comprise hand pedestal, left hand handle, right handgrip, left lock-connecting piece, right lock-connecting piece, hand is made up of pedestal pedestal moulding and interior poling, interior poling injection moulding is in pedestal moulding, the right and left of pedestal moulding has groove, the right and left top of pedestal moulding is U-lag, bottom is flat-bottom slot, the both sides of pedestal moulding the right and left flat-bottom slot respectively have one mutual to perforation, hand coordinates pedestal with bowl-type pad by interior poling, hanging bolt and slope nut, be fixedly connected in front fork tube, left hand is the parts being connected cast with the right handgrip bottom that is pipe, the plagiocephaly barrel of the left lock-connecting piece of lower weld of left hand handle, left lock-connecting piece is by a plagiocephaly barrel, one round head bolt and a nut are formed, twist in plagiocephaly barrel and connect round head bolt, the stubborn place of connecing of round head bolt and plagiocephaly barrel also twists and connects a nut, the channel of the right lock-connecting piece of lower weld of right handgrip, right lock-connecting piece is by channel, latch hook, to connecting bolt, spring and dowel bolt are formed, the both sides up and down of the flute profile left part of channel have mutual to perforation, a tapped bore is had in the middle part of the flute profile of channel, the upper and lower both sides of channel mutual to perforation by being rotationally connected the collar aperture in the middle part of connecting bolt and latch hook, latch hook is that left end becomes hook-type, there is collar aperture at middle part, the parts of right part band handle, the handle of latch hook there is an elongated hole, spring is positioned between the tapped bore of channel and the elongated hole of latch hook, penetrate with dowel bolt in the elongated hole of latch hook with in spring, be screwed into again in the tapped bore of channel, the cast of left hand handle and the cast of right handgrip, by two to lock bolt, be rotationally connected with respectively pedestal moulding the right and left mutual to perforation, the latch hook of right lock-connecting piece under the action of the spring, hook the round head bolt of left lock-connecting piece and realize interlocking, driver train comprises axis, crank, chain wheel, pedal, flywheel and chain, axis is rotationally connected with in five-way by axis accessory, two cranks are fixedly connected on two of axis, chain wheel is fixed on right crank, two pedals are connected to two cranks, flywheel is connected to the right side of trailing wheel, and chain is wire-wrapped in chain wheel and flywheel.

2. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: described front-axle beam pipe is a rectangular tube, described rotating vane is the sheet component of upper end band cast, described back rest pipe is a rectangular tube, described Connection Block is a flute profile stamping, and the both sides of described Connection Block flute profile front and rear respectively have one mutual to perforation.

3. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: go back close-fitting in the pore of described back rest pipe front end and be socketed one section of rectangular tube as reinforcement, the left and right sides of described back rest pipe front end, inconjunction with socket wherein one section of rectangular tube has one mutual to perforation together, the top of described back rest pipe front end, inconjunction with socket wherein one section of rectangular tube has an elongated hole together, and the top of described back rest pipe front portion also has tapped bore.

4. six link rod quick-folding formula portable bicycles according to claim 3, it is characterized in that: described car beam latch hook is bottom is cast, top is the sliced pieces of the Al squeezing material of hook-type, the middle part of described car beam latch hook becomes rod, one of the cast of described car beam latch hook is penetrated from the top down in described back rest pipe range hole, and by the cast of described car beam latch hook correspond to described back rest pipe mutual to perforation, put into torsion spring again, make torsion spring lower tube wall pushed down in one section of rectangular tube pore, one of torsion spring is made to push down on described car beam latch hook rod, again with to lock bolt penetrate described back rest pipe mutual to perforation in, in torsion spring collar aperture and in the collar aperture of described car beam latch hook cast, and to stubborn location.

5. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: described rear linking rod comprises left connecting rod, right connecting rod and barrel, left connecting rod and right connecting rod are the right-angle bendings that the two ends of two metal round rod become in the same way, then left connecting rod and the paired shape of right connecting rod coordinate, the bending part of described left connecting rod and described right connecting rod rear end has screw thread, the bending part of described left connecting rod and described right connecting rod front end has pin-and-hole, barrel has attacked screw thread in the pore of a tubular piece, barrel is positioned over described rear foldable base bottom mutual to perforation between, with the screw thread of described left connecting rod and described right connecting rod rear end bending part penetrate respectively described rear foldable base top mutual in perforation, with be screwed in the tapped bore of barrel, namely complete described rear linking rod and described rear foldable base bottom mutual to being rotationally connected of boring a hole, the bending part of described left connecting rod and described right connecting rod front end is buckled into respectively described flute profile folded piece anterior mutual in perforation, and overlap Upper gasket, pin location on pin, namely described rear linking rod and described flute profile folded piece is completed anterior mutual to being rotationally connected of boring a hole.

6. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: the left and right sides of described seat pipe pipe bottom has arc opening, the arc opening welding back vent of the left and right sides, described seat pipe pipe bottom, described back vent is the parts that a pipe bends to U-shaped, two rear ends of U-shaped are flattened, and flattening place of described back vent two rear end has U-shaped gap.

7. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: the centre of described locator card has to twist and connects hole, the stubborn of described locator card connects the tapped bore that hole corresponds to described back rest pipe front portion, and by bolt, described locator card is connected to the front portion of described back rest pipe, the C shape bayonet socket of the described locator card after being connected with described back rest gas thread hole, the saddle pipe of the described saddle after folding corresponding to described six link rod folded bicycle beams, and the C shape bayonet socket of described locator card can engage with the top of described seat pipe.

8. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: described five-way connecting leg is a pipe, the both sides up and down of the rear end of described five-way connecting leg have arc opening, the arc opening of the rear end of described five-way connecting leg is corresponding with the external diameter of described seat pipe pipe, the left and right sides of the front end of described five-way connecting leg has arc opening, and the arc opening of the front end of described five-way connecting leg is corresponding with the external diameter of described five-way.

9. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: described interior poling comprises pipe and two bolts, the outer tube diameter gear hobbing on described interior poling pipe top, the lower end of described interior poling pipe is with angle, a bolt is respectively welded in the both sides on described interior poling pipe top, described pedestal moulding becomes upper base long, to go to the bottom short isosceles trapezoid shape, the right and left of described pedestal moulding has groove, the groove on the described pedestal moulding left side is opening groove left, groove on the right of described pedestal moulding is opening groove to the right, the U-lag of the right and left of described pedestal moulding with described left hand corresponding with the caliber of described right handgrip.

10. six link rod quick-folding formula portable bicycles according to claim 1, it is characterized in that: described plagiocephaly barrel is that an of barrel makes plagiocephaly, the head of described plagiocephaly barrel and the lower weld of described left hand handle, described channel is opening flute profile backward, the right head of described channel is plagiocephaly, the right head of described channel and the lower weld of described right handgrip, mutual interlocking between described right lock-connecting piece and described left lock-connecting piece, the left hand described in realization, described right handgrip and described hand interfixing between pedestal.