CN103192922B - Portable foldable electric bicycle capable of being dragged through saddle after being folded - Google Patents

Abstract

A portable foldable electric bicycle capable of being dragged through a saddle after being folded comprises a bicycle body, a front fork, a V-shaped folding handle, a saddle, a front wheel, a rear wheel, a manpower drive mechanism and an electric drive system. A head tube and a front folding hinge are welded on a front beam of the bicycle body. A back folding hinge, a bottom bracket seat, a bottom bracket, a rear fork and a seat post folding seat are welded on a back beam of the bicycle body. A seat post folding hinge and a seat post folding buckle are welded with a lower seat post. The front folding hinge is connected with the back folding hinge in a rotating mode. The seat post folding hinge is connected with the seat post folding seat in a rotating mode. A hook of the seat post folding buckle is fastened with the seat post folding seat. Linkage rods are connected with the front folding hinge and the seat post folding hinge in a rotating mode. The saddle is mounted in the lower seat post. The front fork is connected with the head tube in a rotating mode. The V-shaped folding handle is mounted in a front fork tube of the front fork. The front wheel is mounted on the front fork; and the rear wheel is mounted on the rear fork. The drive mechanism is mounted in the bottom bracket and on the rear wheel. A hub motor is arranged on the rear wheel. Batteries are placed in a tube of the back beam; and a controller is placed in a tube of the front beam.

Description

Quick-folding saddle drag type portable electric bicycle

technical field:

The present invention relates to a kind of folding electric bicycle, particularly a kind ofly can fold very little, folding after the quick-folding saddle drag type portable electric bicycle that can tow.

background technology:

The Chinese invention patent of the applicant's earlier application, notification number is the quick-folding saddle handle type portable electric bicycle of CN102700661B, although folding quick, folding is effective, but because the battery case etc. of girder, man power driving mechanism and electric propulsion system constructs reason, vehicle body is overweight, is difficult to reach light portable effect.

summary of the invention:

The object of the invention is to provide one can fold little, complete, and simultaneously weight is light many quick-folding saddle drag type portable electric bicycles.The object of the present invention is achieved like this: quick-folding saddle drag type portable electric bicycle, comprises vehicle body, front fork, V-shaped folding hand handle, vehicle seat, front-wheel, trailing wheel, back pole-bracket, man power driving mechanism and electric drive system, is characterized in that: vehicle body comprises front head tube, front-axle beam, the back rest, folding frontal lobe, folding posterior lobe, five-way base, Five-way tube, back vent, seat pipe foldable base, the folding leaf of seat pipe, lower seat pipe, seat pipe folding fastener, gangbar and locating button, front-axle beam and the back rest are all rectangular metal pipes, folding frontal lobe be sheetmetal both sides backward right-angle bending become flute profile, the top and the bottom on the both sides of flute profile are respectively with a mutual blanked part to perforation, and there is rectangular opening on the blade face of folding frontal lobe, and folding posterior lobe is base band collar aperture, top margin is bending forward, metal piece with rectangular opening on blade face, five-way base is that the both sides of lower end rush the rectangular tube having circular arc recess, back vent is the parts that the rear end of two oval tubes is respectively welded with trailing wheel connecting strap, the middle part of head tube before the front end welding of front-axle beam, the folding frontal lobe of rear end welding of front-axle beam, the folding posterior lobe of front end welding of the back rest, the both sides welding back vent of back rest rear end, the below welding five-way base of back rest front portion, the bottom welding Five-way tube of five-way base, the top welding base pipe foldable base at back rest rear portion, the rear end pore of the back rest is furnished with interior plug, and by bolt, interior plug is fixed on the rear end of the back rest, the bottom of folding frontal lobe is to boring a hole by being rotationally connected the collar aperture of lock bolt and folding posterior lobe, seat pipe foldable base be sheetmetal both sides upwards right-angle bending become flute profile, rear end is upwards rolled over, and then the blanked part of bending backward, the front end of seat pipe foldable base flute profile both sides has mutual to perforation, the folding leaf of seat pipe is top margin and the base metal piece respectively with a collar aperture, lower seat pipe is the metal circular tube of top with pipe clamp, the top of lower seat pipe is with cracking, the rear side of bottom is with tapped bore, seat pipe folding fastener comprises Button Block, clasp, spring and caging bolt, Button Block be a bullion sheet two backward right-angle bending become flute profile, the both sides of flute profile are respectively with a mutual blanked part to perforation, the top of clasp is handle, upper porose, the middle part band collar aperture of clasp, bottom buckle, the folding leaf of seat pipe is welded in the front side of lower seat pipe lower end, Button Block is welded in the rear side of lower seat pipe lower end, the lower collar aperture of the folding leaf of seat pipe is by locking being rotationally connected perforation of bolt and seat pipe foldable base, the collar aperture of clasp is by being rotationally connected perforation lock bolt and Button Block, caging bolt penetrate clasp in hole, penetrate again in spring, be fastened in the tapped bore of lower seat pipe again, clasp is buckled on the bending edges backward of a pipe foldable base, gangbar is the round bar of two inside right-angle bendings in two, hole is worn in the front of gangbar two round bar, the end points of rear end is with threaded hole, the tapped bore of one round bar of gangbar two round bar is twisted and is connect a small screw, then penetrating seat pipe folds in the upper collar aperture of leaf, the rear end of another round bar of gangbar two round bar penetrates seat pipe and folds in the upper collar aperture of leaf, and correspond to the small screw on a round bar with tapped bore, carry out twisting and connect, the front end of gangbar two round bar penetrate folding frontal lobe top in perforation, and locate with pin, locating button is secured by bolts in the top of back rest front end, locating button is after this car is folding, lower seat pipe thread is lived, vehicle seat is installed in lower seat pipe, vehicle seat comprises seat of honour pipe and saddle, saddle is that rear is with the saddle drawing handle, front fork is rotationally connected by seven bowls and front head tube, V-shaped folding hand is being installed in the front fork tube of front fork, V-shaped folding hand is comprising hand pedestal, inside extending tube, U-lag plastic lining, left even part, right even part, left hand handle, right handgrip, left lock-connecting piece, right lock-connecting piece, hole cylinder, quick detach, safety catch, hand is Intermediate Gray one circular hole pedestal, both sides are respectively with flute profile, two flute profiles cut off workpiece with the Al squeezing material of convex tendon inside the both sides of bottom land, hand is respectively mutual to perforation with one two side lower parts of pedestal two flute profile, hand is socketed an inside extending tube the bottom close-fitting of pedestal circular hole, hand is respectively inlaying connection one U-lag plastic lining in two flute profiles of pedestal, U-lag plastic lining is top and middle part is U-lag, bottom is flat-bottom slot, the both sides of flat-bottom slot are with the mutual Plastic Parts to perforation, U-lag plastic lining two outside each with sulculus, two sulculuses of U-lag plastic lining correspond to hand two convex tendons in pedestal flute profile, two U-lag plastic lining bottoms to perforation correspond to hand pedestal two flute profile both sides to perforation, left connect part and right connect part respectively fixedly sleeved in left hand the bottom with right handgrip, left even part and right even part are the workpieces of the Al squeezing material section of a bottom zone circle shape, the cylinder of one Vehicle Processing is arranged at the left top connecting part and right even part, left hand is being upper and lower with bending aluminium pipe with right handgrip, left lock-connecting piece and right lock-connecting piece are welded in left hand respectively the rear side of the rear side of bottom and right handgrip bottom, left lock-connecting piece one strikes out flute profile, the both sides of flute profile with mutual to the aluminum component wearing circular hole, right lock-connecting piece is the sliced pieces of the Al squeezing material of an Intermediate Gray U-lag, by left connect part and right connect part correspond respectively to hand pedestal two flute profile both sides to perforation, with two U-lag plastic lining bottoms to perforation, with two, lock bolt is penetrated and twisted and connects, allow left hand with the bottom of right handgrip be connected to hand two U-lag plastic linings in pedestal two flute profile be meshed, safety catch is the Plastic Parts with U-shaped card, safety catch is connected to hand the top of the rear side of groove on the right of pedestal, what left lock-connecting piece was mutual is rotationally connected hole cylinder to wearing circular hole, hole cylinder connects quick detach, quick disassemble lock is connected on right lock-connecting piece, and fast dismounting handle snaps in the U-shaped card of safety catch, inside extending tube passes through hanging bolt, Passscheiben and swollen plug, hand is fixed on pedestal in front fork tube, hand fills in the top circular hole stifle of pedestal, front-wheel installed by front fork, back vent installs trailing wheel, back pole-bracket is also installed on back vent and the rear portion of the back rest, man power driving mechanism comprises axis, crank, pedal, chain wheel, flywheel and chain, axis is installed in Five-way tube by axis accessory, and two cranks are installed on the two ends of axis, and chain wheel is fixedly connected on right crank, two pedals are fastened to the outer end of two cranks, and chain is wire-wrapped on rear chain wheel and flywheel, electric drive system comprises wheel hub motor, battery, controller and master cock, and wheel hub motor is configured in trailing wheel, and battery and controller are placed in the rectangle pore of the back rest.

The invention has the beneficial effects as follows: front-axle beam of the present invention and the back rest adopt rectangular tube, the rectangle pore placing battery of the back rest and controller, make controller of the present invention relative with the putting position of battery hidden, appearance is good, gangbar adopts metal round rod, the present invention is made to have intensity high, lightweight, folding effect is good and outward appearance is good, seat pipe folding fastener adopts Button Block, clasp, the combination of spring and caging bolt, and clasp is buckled on the bending edges backward of a pipe foldable base, make the present invention folding and open more convenient, mix the V-shaped folding hand handle that structure is better again, of the present invention folding is found no fault with more.

accompanying drawing illustrates:

Fig. 1 is structure of the present invention and schematic appearance

Fig. 2 is that V-shaped folding hand of the present invention is folding picture

Fig. 3 is vehicle body folding process figure of the present invention

Fig. 4 is folding complete design sketch of the present invention

In figure: 1---vehicle body, 2---front fork, 3---V-shaped folding hand handle, 4---vehicle seat, 5---front-wheel, 6---trailing wheel, 7---back pole-bracket, 8---man power driving mechanism, 9---electric drive system; Wherein vehicle body 1 also comprises: 11---front head tube, and 121---front-axle beam, 122---the back rest, 131---front folding leaf, 132---folding leaf afterwards, 141---five-way base, 142---Five-way tube, 15---back vent, 161---seat pipe foldable base, 162---seat pipe folds leaf, 163---lower seat pipe, 17---seat pipe folding fastener, 18---gangbar, 19---locating button; V-shaped folding hand also comprises 3: 31---and hand is pedestal, 311---inside extending tube, 32---U-lag plastic lining, 331---left even part, 332---right even part, 341---left hand handle, 342---right handgrip, 351---left lock-connecting piece, 352---right lock-connecting piece, 36---hole cylinder, 37---quick detach, 38---safety catch; Man power driving mechanism 8 also comprises: 81---axis, and 82---crank, 83---pedal, 84---chain wheel, 85---flywheel, 86---chain; Electric drive system 9 also comprises: 91---wheel hub motor, and 92---battery, 93---controller, 94---master cock; Master cock 94 also comprises: 941---control lock, 942---and speed control crank, 943---power-off brake lever.

detailed description of the invention:

According to Fig. 1, described V-arrangement can carry out formula portable electric bicycle folding, comprise vehicle body 1, front fork 2, V-shaped folding hand 3, vehicle seat 4, front-wheel 5, trailing wheel 6, back pole-bracket 7, driver train 8 and electric drive system 9;

Described vehicle body 1 comprises front head tube 11, front-axle beam 121, the back rest 122, folding frontal lobe 131, folding posterior lobe 132, five-way base 141, Five-way tube 142, back vent 15, seat pipe foldable base 161, seat pipe fold leaf 162, lower seat pipe 163, seat pipe folding fastener 17, gangbar 18 and locating button 19;

Described front-axle beam 121 is that the upper and lower both sides punching in front end has the rectangular metal pipe of circular arc recess, the circular arc recess of described front-axle beam 121 and the external diameter of described front head tube 11 match, the middle part of the described front head tube 11 of front end welding of described front-axle beam 121, the folding frontal lobe 131 described in the welding of rear end of described front-axle beam 121, described folding frontal lobe 131 be sheetmetal both sides backward right-angle bending become flute profile, the top and the bottom on the both sides of flute profile are respectively with a mutual blanked part to perforation, the blade face of described folding frontal lobe 131 there is rectangular opening, described folding frontal lobe 131 welds with the rear end of described front-axle beam 121, the described back rest 122 is rectangular metal pipes, described folding posterior lobe 132 is base band collar aperture, top margin is bending forward, metal piece with rectangular opening on blade face, the rectangular opening of described folding posterior lobe 132 can fill in described controller 83, the rectangular opening of described folding posterior lobe 132 corresponds to the rear end of the described back rest 122, and weld, there is a pair perforation at the rear portion of the described back rest 122, the back vent 15 described in the welding of both sides of the described back rest 122 rear end, described back vent 15 is parts that the rear end of two oval tubes is respectively welded with trailing wheel connecting strap, the described both sides of the back rest 122 rear end and the weld of described back vent 15 are welded with reinforcing chip, the five-way base 141 described in the welding of below of the described back rest 122 front portion, described five-way base 141 is that the both sides of lower end rush the rectangular tube having circular arc recess, the Five-way tube 142 described in the welding of bottom of described five-way base 141, the seat pipe foldable base 161 described in the welding of top at the described back rest 122 rear portion, the rear end pore of the described back rest 122 is furnished with interior plug, and by bolt, interior plug is fixed on the rear end of the described back rest 122.

Described seat pipe foldable base 161 be sheetmetal both sides upwards right-angle bending become flute profile, rear end is upwards rolled over, and then the blanked part of bending backward, the front end of described seat pipe foldable base 161 flute profile both sides has mutual to perforation, described lower seat pipe 163 is top metal circular tubes with pipe clamp, the top of described lower seat pipe 161 is with cracking, the rear side of bottom is with tapped bore, described seat pipe folds the front side that leaf 162 is welded in described lower seat pipe 163 lower end, described seat pipe folding fastener 17 comprises Button Block, clasp, spring and caging bolt, described Button Block be a bullion sheet two backward right-angle bending become flute profile, the both sides of flute profile are respectively with a mutual blanked part to perforation, described Button Block is welded in the rear side of described lower seat pipe 163 lower end, the bottom collar aperture that described seat pipe folds leaf 162 is by being rotationally connected perforation lock bolt and described seat pipe foldable base 161, described clasp is top is arc-shaped bend, middle part is cast, bottom is the Al squeezing material slice processing part of hook-type, the arc-shaped curved surface that described clasp is there is perforate, the collar aperture of described clasp is by being rotationally connected perforation lock bolt and described Button Block, described caging bolt penetrates in the perforate on the arc-shaped curved surface of described clasp, penetrate again in spring, be fastened in the tapped bore of described lower seat pipe 163 again, described clasp is buckled on the bending edges backward of described seat pipe foldable base 161.

Described gangbar 18 is round bars of two inside right-angle bendings in two, hole is worn in the front of gangbar two round bar, the end points of rear end is with threaded hole, the tapped bore of one round bar of described gangbar two round bar is twisted and is connect a small screw, then penetrating described seat pipe folds in the upper collar aperture of leaf 162, the rear end of another round bar of described gangbar 18 liang of round bars penetrates seat pipe and folds in the upper collar aperture of leaf, and correspond to the small screw on a round bar with tapped bore, carry out twisting and connect, the front end of described gangbar 18 liang of round bars penetrate described folding frontal lobe 131 top in perforation, and locate with pin.

Described locating button 19 is Plastic Parts of a band C shape mouth, the C shape mouth of described locating button 19 is corresponding with the caliber of described lower seat pipe 163, described locating button 19 is secured by bolts in the top of the described back rest 122 front end, described locating button 19 is after this car is folding, described lower seat pipe 163 is fastened, described vehicle seat 4 is installed in described lower seat pipe 163, described vehicle seat 4 comprises seat of honour pipe and saddle, the rear of described saddle is with drawing handle, described draws handle to be that an iron wire is bent into half shaped as frame, the intermediate sleeve of half shaped as frame is connected to rubber plastic pipe, describedly draw the connection with described saddle, have half slot by four both sides, the punching of middle with hole, connect by the stubborn of two pairs of bolt and nuts, four both sides there is half slot, two pairs of shape parts are synthesized in the punching of middle with hole, and by described two of drawing half shaped as frame, be fixedly clamped with two support wires of described saddle base and be connected, described saddle is connected to the top of described seat of honour pipe.

Described front fork 2 by seven bowls and described before head tube 11 be rotationally connected, described front fork 2 comprises wheel fork and front fork tube, described front fork 2 by seven bowls and described before head tube 11 be rotationally connected, the wheel fork of described front fork 2 installs described front-wheel 5, the trailing wheel connecting strap of described back vent 15 installs described trailing wheel 6, described front-wheel 5 is 8 inches of wheels, and described trailing wheel is 12 inches of wheels with wheel hub motor 81.

Described V-shaped folding hand 3, comprise hand pedestal 31, inside extending tube 311, U-lag plastic lining 32, left connect part 331, right connect part 332, left hand 341, right handgrip 342, left lock-connecting piece 351, right lock-connecting piece 352, hole cylinder 36, quick detach 37, safety catch 38.

Described hand is pedestal 31, that Intermediate Gray one circular hole, both sides respectively cut off workpiece near the both sides of bottom land with the Al squeezing material of convex tendon with flute profile, two flute profiles, described hand is respectively mutual to perforation with one two side lower parts of pedestal 31 liang of flute profiles, described hand has a tapped bore the top on rear side of groove on the right of pedestal 31, and described hand is the inside extending tube 311 described in the bottom close-fitting socket one of pedestal 31 circular hole.

Described U-lag plastic lining 32 is top and middle part is U-lag, bottom is flat-bottom slot, the both sides of flat-bottom slot are with the mutual Plastic Parts to perforation, described U-lag plastic lining 32 two outside each with sulculus, the sulculus of U-lag plastic lining 32 described in two corresponds to hand described in two the convex tendon in pedestal 31 flute profile, and be pushed in hand described in two in the flute profile of pedestal 31, by U-lag plastic lining 32 bottom described in two to perforation correspond to hand described in two pedestal 31 liang of flute profile both sides to perforation, the U-lag of described U-lag plastic lining 32 and described left hand match the caliber of 341 and described right handgrip 342.

Described left even part 331 and described right even part 332, it is the workpiece of the Al squeezing material section of a bottom zone circle shape, the described left top connecting part 331 and described right even part 332, there is the cylinder of a Vehicle Processing, the described left cylinder connecting part 331 and described right even part 332, respectively fixedly sleeved in described left hand 341 and the bottom of described right handgrip 342, described left hand is equipped with a pin 341 and the described left socket place connecting part 331, described right handgrip 342 is equipped with a pin with the described right socket place connecting part 332, by described left connect part 331 and described right connect part 332 respectively by lock screws is connected to described pedestal 31 flute profile two side lower part in perforation, with U-lag plastic lining 32 bottom described in two to perforation in.

Described left lock-connecting piece 351, be one strike out flute profile, flute profile both sides with mutual to the aluminum component wearing circular hole, described left lock-connecting piece 351 is welded in described left hand the rear side of 341 bottoms, described right lock-connecting piece 352, it is the sliced pieces of the Al squeezing material of an Intermediate Gray U-lag, described right lock-connecting piece 352 is welded in the rear side of described right handgrip 342 bottom, and the U-lag of described right lock-connecting piece 352 is corresponding with the flute profile of described left lock-connecting piece 351.

Described hole cylinder 36 is that the side of a metal cylinder has a pair perforation, described hole cylinder 36 penetrate described left lock-connecting piece 351 up and down to wearing in circular hole and mutual to wearing circular hole normal-running fit with described left lock-connecting piece 351.

Described quick detach be connected to hole cylinder 36 side in described left lock-connecting piece about 351 circular hole in perforation, and be arranged in the groove of described left lock-connecting piece 351, described quick detach 37 interlocking is in the U-lag of described right lock-connecting piece 352.

Described safety catch 38 is the Plastic Parts with U-shaped card, connecting bore is arranged at the bottom of described safety catch 38U shape card, the connecting bore of described safety catch 38 is bolted in described hand the tapped bore of the upper back of groove on the right of pedestal 31, and the U-shaped card of described safety catch 38 is corresponding with the fast dismounting handle of described quick detach 37 and engage.

Described back pole-bracket 7 is welded with metal wire rod is bending, two front ends of described back pole-bracket 7 and two lower ends bent lopping, the collar aperture of two front ends of described back pole-bracket 7 is by being connected boring a hole with the rear portion of the described back rest 122 lock bolt, the collar aperture of two lower ends of described back pole-bracket 7 is connected with the wheel shaft of described trailing wheel 6, described back pole-bracket 7 erects placement, described back pole-bracket 7 or the back rest frame of this car after this car can be allowed folding.

Described man power driving mechanism 8 comprises axis 81, crank 82, pedal 83, chain wheel 84, flywheel 85, chain 86, described axis 81 is installed in described Five-way tube 142 by axis accessory, crank 82 described in two is installed on the two ends of described axis 81, described chain wheel 84 is fixedly connected on the right crank of described crank 82, pedal 83 described in two is fastened to the outer end of crank 82 described in two, described flywheel 85 is installed on the right side of described trailing wheel 6, and described chain 86 is wire-wrapped on described chain wheel 84 and described flywheel 85.

Described electric drive system 9 comprises: wheel hub motor 91, battery 92, controller 93 and master cock 94, described wheel hub motor 91 is brushless hub electric motors, described motor 91 integrally configures combination with the wheel hub of described trailing wheel 6, described battery 92 is lithium cell groups of series connection, described controller 93 is brushless motor controllers, described battery 92 is positioned in the rectangle pore of the described back rest 122 from the rear end of the described back rest 122, and interior plug is secured by bolts in the rear end of the described back rest 122, described controller 93 is positioned over the front portion of the described back rest 122 rectangle pore, described master cock 94 comprises Energy control lock 941, speed control crank 942 and power-off brake lever 943, described Energy control lock 941 is installed on described front-axle beam 121, described speed control crank 942 is installed on described right handgrip 942, described power-off brake lever 943 is installed on described left hand on 341 and on described right handgrip 342, described Energy control lock 941, described speed control crank 942 and described power-off brake lever 943, be connected with described controller 93 with connector by connection lead, described controller 93 is connected with described battery 92 and described wheel hub motor 91 with connector by connection lead.

Claims (9)

1. a quick-folding saddle drag type portable electric bicycle, comprises vehicle body, front fork, V-shaped folding hand handle, vehicle seat, front-wheel, trailing wheel, back pole-bracket, man power driving mechanism and electric drive system, is characterized in that: vehicle body comprises front head tube, front-axle beam, the back rest, folding frontal lobe, folding posterior lobe, five-way base, Five-way tube, back vent, seat pipe foldable base, the folding leaf of seat pipe, lower seat pipe, seat pipe folding fastener, gangbar and locating button, front-axle beam and the back rest are all rectangular metal pipes, folding frontal lobe be sheetmetal both sides backward right-angle bending become flute profile, the top and the bottom on the both sides of flute profile are respectively with a mutual blanked part to perforation, and there is rectangular opening on the blade face of folding frontal lobe, and folding posterior lobe is base band collar aperture, top margin is bending forward, metal piece with rectangular opening on blade face, five-way base is that the both sides of lower end rush the rectangular tube having circular arc recess, back vent is the parts that the rear end of two oval tubes is respectively welded with trailing wheel connecting strap, the middle part of head tube before the front end welding of front-axle beam, the folding frontal lobe of rear end welding of front-axle beam, the folding posterior lobe of front end welding of the back rest, the both sides welding back vent of back rest rear end, the below welding five-way base of back rest front portion, the bottom welding Five-way tube of five-way base, the top welding base pipe foldable base at back rest rear portion, the rear end pore of the back rest is furnished with interior plug, and by bolt, interior plug is fixed on the rear end of the back rest, the bottom of folding frontal lobe is to boring a hole by being rotationally connected the collar aperture of lock bolt and folding posterior lobe, seat pipe foldable base be sheetmetal both sides upwards right-angle bending become flute profile, rear end is upwards rolled over, and then the blanked part of bending backward, the front end of seat pipe foldable base flute profile both sides has mutual to perforation, the folding leaf of seat pipe is top margin and the base metal piece respectively with a collar aperture, lower seat pipe is the metal circular tube of top with pipe clamp, the top of lower seat pipe is with cracking, the rear side of bottom is with tapped bore, seat pipe folding fastener comprises Button Block, clasp, spring and caging bolt, Button Block be a bullion sheet two backward right-angle bending become flute profile, the both sides of flute profile are respectively with a mutual blanked part to perforation, the top of clasp is handle, upper porose, the middle part band collar aperture of clasp, bottom buckle, the folding leaf of seat pipe is welded in the front side of lower seat pipe lower end, Button Block is welded in the rear side of lower seat pipe lower end, the lower collar aperture of the folding leaf of seat pipe is by locking being rotationally connected perforation of bolt and seat pipe foldable base, the collar aperture of clasp is by being rotationally connected perforation lock bolt and Button Block, caging bolt penetrate clasp in hole, penetrate again in spring, be fastened in the tapped bore of lower seat pipe again, clasp is buckled on the bending edges backward of a pipe foldable base, gangbar is the round bar of two inside right-angle bendings in two, hole is worn in the front of gangbar two round bar, the end points of rear end is with threaded hole, the tapped bore of one round bar of gangbar two round bar is twisted and is connect a small screw, then penetrating seat pipe folds in the upper collar aperture of leaf, the rear end of another round bar of gangbar two round bar penetrates seat pipe and folds in the upper collar aperture of leaf, and correspond to the small screw on a round bar with tapped bore, carry out twisting and connect, the front end of gangbar two round bar penetrate folding frontal lobe top in perforation, and locate with pin, locating button is secured by bolts in the top of back rest front end, locating button is after this car is folding, lower seat pipe thread is lived, vehicle seat is installed in lower seat pipe, vehicle seat comprises seat of honour pipe and saddle, saddle is that rear is with the saddle drawing handle, front fork is rotationally connected by seven bowls and front head tube, V-shaped folding hand is being installed in the front fork tube of front fork, V-shaped folding hand is comprising hand pedestal, inside extending tube, U-lag plastic lining, left even part, right even part, left hand handle, right handgrip, left lock-connecting piece, right lock-connecting piece, hole cylinder, quick detach, safety catch, hand is Intermediate Gray one circular hole pedestal, both sides are respectively with flute profile, two flute profiles cut off workpiece with the Al squeezing material of convex tendon inside the both sides of bottom land, hand is respectively mutual to perforation with one two side lower parts of pedestal two flute profile, hand is socketed an inside extending tube the bottom close-fitting of pedestal circular hole, hand is respectively inlaying connection one U-lag plastic lining in two flute profiles of pedestal, U-lag plastic lining is top and middle part is U-lag, bottom is flat-bottom slot, the both sides of flat-bottom slot are with the mutual Plastic Parts to perforation, U-lag plastic lining two outside each with sulculus, two sulculuses of U-lag plastic lining correspond to hand two convex tendons in pedestal flute profile, two U-lag plastic lining bottoms to perforation correspond to hand pedestal two flute profile both sides to perforation, left connect part and right connect part respectively fixedly sleeved in left hand the bottom with right handgrip, left even part and right even part are the workpieces of the Al squeezing material section of a bottom zone circle shape, the cylinder of one Vehicle Processing is arranged at the left top connecting part and right even part, left hand is being upper and lower with bending aluminium pipe with right handgrip, left lock-connecting piece and right lock-connecting piece are welded in left hand respectively the rear side of the rear side of bottom and right handgrip bottom, left lock-connecting piece one strikes out flute profile, the both sides of flute profile with mutual to the aluminum component wearing circular hole, right lock-connecting piece is the sliced pieces of the Al squeezing material of an Intermediate Gray U-lag, by left connect part and right connect part correspond respectively to hand pedestal two flute profile both sides to perforation, with two U-lag plastic lining bottoms to perforation, with two, lock bolt is penetrated and twisted and connects, allow left hand with the bottom of right handgrip be connected to hand two U-lag plastic linings in pedestal two flute profile be meshed, safety catch is the Plastic Parts with U-shaped card, safety catch is connected to hand the top of the rear side of groove on the right of pedestal, what left lock-connecting piece was mutual is rotationally connected hole cylinder to wearing circular hole, hole cylinder connects quick detach, quick disassemble lock is connected on right lock-connecting piece, and fast dismounting handle snaps in the U-shaped card of safety catch, inside extending tube passes through hanging bolt, Passscheiben and swollen plug, hand is fixed on pedestal in front fork tube, hand fills in the top circular hole stifle of pedestal, front-wheel installed by front fork, back vent installs trailing wheel, back pole-bracket is also installed on back vent and the rear portion of the back rest, man power driving mechanism comprises axis, crank, pedal, chain wheel, flywheel and chain, axis is installed in Five-way tube by axis accessory, and two cranks are installed on the two ends of axis, and chain wheel is fixedly connected on right crank, two pedals are fastened to the outer end of two cranks, and chain is wire-wrapped on rear chain wheel and flywheel, electric drive system comprises wheel hub motor, battery, controller and master cock, and wheel hub motor is configured in trailing wheel, and battery and controller are placed in the rectangle pore of the back rest.

2. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: described front-axle beam is that the upper and lower both sides punching in front end has the rectangular metal pipe of circular arc recess, the rectangular opening of described folding posterior lobe can fill in described controller, the rectangular opening of described folding posterior lobe corresponds to the rear end of the described back rest, and weld, there is a pair perforation at the rear portion of the described back rest, the circular arc recess of described front-axle beam and the external diameter of described front head tube match, the rectangular opening of described folding frontal lobe can fill in described controller, the rectangular opening of described folding frontal lobe corresponds to the rear end of described front-axle beam, and weld, the both sides of described back rest rear end and the weld of described back vent are welded with reinforcing chip.

3. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: the Al squeezing material slice processing part that described clasp is top is arc-shaped bend, middle part is cast, bottom is hook-type, the arc-shaped curved surface that described clasp is has perforate.

4. quick-folding saddle drag type portable electric bicycle according to claim 1, is characterized in that: described locating button is the Plastic Parts of a band C shape mouth, and the C shape mouth of described locating button is corresponding with the caliber of described lower seat pipe.

5. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: the rear of described saddle is with drawing handle, described draws handle to be that an iron wire is bent into half shaped as frame, the intermediate sleeve of half shaped as frame is connected to rubber plastic pipe, describedly draw the connection with described saddle, have half slot by four both sides, the punching of middle with hole, connect by the stubborn of two pairs of bolt and nuts, four both sides there is half slot, two pairs of shape parts are synthesized in the punching of middle with hole, and by described two of drawing half shaped as frame, be fixedly clamped with two support wires of described saddle base and be connected, described saddle is connected to the top of described seat of honour pipe.

6. quick-folding saddle drag type portable electric bicycle according to claim 1, is characterized in that: described front-wheel is 8 inches of wheels, and described trailing wheel is 12 inches of wheels with wheel hub motor; Described back pole-bracket is welded with metal wire rod is bending, two front ends of described back pole-bracket and two lower ends bent lopping, the collar aperture of two front ends of described back pole-bracket is by being connected boring a hole with the rear portion of the described back rest lock bolt, the collar aperture of two lower ends of described back pole-bracket is connected with the wheel shaft of described trailing wheel, described back pole-bracket erects placement, described back pole-bracket or the back rest frame of this car after this car can be allowed folding.

7. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: described hand has a tapped bore the top on rear side of groove on the right of pedestal, the sulculus of U-lag plastic lining described in two corresponds to hand described in two the convex tendon in pedestal flute profile, and be pushed in hand described in two in the flute profile of pedestal, by U-lag plastic lining bottom described in two to perforation correspond to hand described in two pedestal two flute profile both sides to perforation, U-lag and the described left hand of described U-lag plastic lining match the caliber with described right handgrip, described left hand is equipped with a pin with the described left socket place connecting part, described right handgrip and the described right socket place connecting part are equipped with a pin.

8. quick-folding saddle drag type portable electric bicycle according to claim 7, it is characterized in that: described quick detach be connected to hole cylinder side in the upper and lower circular hole of described left lock-connecting piece in perforation, and be arranged in the groove of described left lock-connecting piece, described quick disassemble lock is connected in the U-lag of described right lock-connecting piece, connecting bore is arranged at the bottom of described safety catch U-shaped card, the connecting bore of described safety catch is bolted in described hand the tapped bore of the upper back of groove on the right of pedestal, and the U-shaped card of described safety catch is corresponding with the fast dismounting handle of described quick detach and engage.

9. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: the wheel hub of described motor and described trailing wheel integrally configures combination, described battery is the lithium cell group of series connection, described controller is brushless motor controller, described battery is positioned in the rectangle pore of the described back rest from the rear end of the described back rest, and interior plug is secured by bolts in the rear end of the described back rest, described controller is positioned over the front portion of described back rest rectangle pore, described master cock comprises Energy control lock, speed control crank and power-off brake lever, described Energy control lock is installed on described front-axle beam, described speed control crank is installed on described right handgrip, described power-off brake lever is installed on described left hand on upper and described right handgrip, described Energy control lock, described speed control crank and described power-off brake lever, be connected with described controller with connector by connection lead, described controller is connected with described battery and described wheel hub motor with connector by connection lead.