CN203211452U

CN203211452U - Quick-folding saddle dragging-type portable electric bicycle

Info

Publication number: CN203211452U
Application number: CN 201320181457
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2013-04-12
Filing date: 2013-04-12
Publication date: 2013-09-25
Anticipated expiration: 2023-04-12

Abstract

A quick-folding saddle dragging-type portable electric bicycle comprises a bicycle body, a front fork, a V-shaped folding handlebar, a saddle, a front wheel, a rear wheel, a manpower drive mechanism and an electric drive system. A front beam of the bicycle body is welded with a front head pipe and a front folding leaf. A rear beam of the bicycle body is welded with a rear folding leaf, a bottom bracket base, a bottom bracket, a rear fork and a base pipe folding base. A lower base pipe is welded with a base pipe folding leaf and a base pipe folding buckle. The front folding leaf is connected with the rear folding leaf in a rotatable mode. The base pipe folding leaf is connected with the base pipe folding base in a rotatable mode. A buckle hook of the base pipe folding buckle is buckled on the base pipe folding base. A linkage rod is connected with the front folding leaf and the rear folding leaf in a rotatable mode. The saddle is installed in the lower base pipe. The front fork is connected with the front head pipe in a rotatable mode. The V-shaped folding handlebar is installed in a front fork pipe of the front fork. The front wheel is installed on the front fork. The rear wheel is installed on the rear fork. The manpower drive mechanism is installed on the bottom bracket and on the rear wheel. A hub motor is arranged on the rear wheel. A battery is placed in a pipe of the rear beam. A controller is placed in a pipe of the front beam.

Description

Quick-folding saddle drag type portable electric bicycle

Technical field:

The utility model relates to a kind of folding electric bicycle, the quick-folding saddle drag type portable electric bicycle that particularly a kind ofly can fold very for a short time, can tow after folding.

Technical background:

The applicant is at the quick-folding saddle handle type portable electric bicycle of first to file, though folding quick, folding effective, owing to reasons such as structure, vehicle body are overweight, be difficult to reach light portable effect.

The utility model content:

The purpose of this utility model be to provide a kind of and can fold for a short time, complete, and weight is light simultaneously many quick-folding saddle drag type portable electric bicycles.The purpose of this utility model is achieved in that quick-folding saddle drag type portable electric bicycle, comprise vehicle body, front fork, the V font folds handgrip, vehicle seat, front-wheel, trailing wheel, back pole-bracket, man power driving mechanism and electric drive system, it is characterized in that: vehicle body comprises the front pipe, front-axle beam, the back rest, folding frontal lobe, folding posterior lobe, the five-way base, the five-way pipe, back vent, seat pipe foldable base, the folding leaf of seat pipe, following seat pipe, seat pipe folding fastener, gangbar and locating button, front-axle beam and the back rest all are the rectangular metal pipes, folding frontal lobe is that sheetmetal both sides are bent into flute profile in the right angle backward, the top and the bottom on the both sides of flute profile are respectively with a mutual blanked part to perforation, on the blade face of folding frontal lobe rectangular opening is arranged, folding posterior lobe is zone circle hole, base, top margin is bending forward, the metal piece of band rectangular opening on the blade face, the five-way base is that the both sides of lower end dash the rectangular tube that the circular arc recess is arranged, back vent is the parts that the rear end of two oval tubes respectively is welded with the trailing wheel connecting strap, the middle part of the front end welding front pipe 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 pipe 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 can interior plug be fixed in the rear end of the back rest by bolt, the bottom of folding frontal lobe is rotationally connected by the circle hole to lock bolt and folding posterior lobe to perforation; Seat pipe foldable base is that the right angle that makes progress, sheetmetal both sides is bent into flute profile, the rear end is folding upwards, 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 that top margin and base are respectively with the metal piece in a circle hole, following seat pipe is the metal circular tube that the top has pipe clamp, the top of following seat pipe has cracks, the rear side of bottom has tapped bore, seat pipe folding fastener comprises Button Block, clasp, spring and caging bolt, Button Block is that a bullion sheet two is bent into flute profile in the right angle backward, the both sides of flute profile are respectively with a mutual blanked part to perforation, the top of clasp is handle, last porose, the zone circle hole, middle part of clasp, the bottom buckle, the folding leaf of seat pipe is welded in down the front side of seat pipe lower end, Button Block is welded in down the rear side of seat pipe lower end, the Xia Quan hole of the folding leaf of seat pipe is by being rotationally connected to perforation to lock bolt and seat pipe foldable base, the circle hole of clasp is by being rotationally connected to perforation to lock bolt and Button Block, caging bolt penetrate clasp in the hole, penetrate in the spring again, be fastened to down in the tapped bore of seat pipe, clasp is buckled on the bending edges backward of seat pipe foldable base again; Gangbar is the round bar of two two inside right angle bendings, the front of gangbar two round bars is worn the hole, the end points of rear end is with threaded hole, the tapped bore of one round bar of gangbar two round bars is twisted and is connect a small screw, penetrate going up in the circle hole of the folding leaf of seat pipe then, the rear end of another round bar of gangbar two round bars penetrates going up in the circle hole of the folding leaf of seat pipe, and with tapped bore corresponding to the small screw on the round bar, twist and connect, the front end of gangbar two round bars penetrate folding frontal lobe top in the perforation, and locate with pin, locating button is by the top of bolt in back rest front end, locating button is after this car is folding, to descend a pipe thread to live, vehicle seat is installed on down in the seat pipe, vehicle seat comprises seat of honour pipe and saddle, and saddle is that the rear has the saddle that draws handle; Front fork is rotationally connected by seven bowls and front pipe, the folding handgrip of V font is installed in the front fork tube of front fork, the folding handgrip of V font comprises the handgrip pedestal, inside extending tube, the U-lag plastic lining, a left side connects part, the right part that connects, the left hand handle, right handgrip, left side lock-connecting piece, right lock-connecting piece, hole cylinder, quick detach, safety catch, the handgrip pedestal is with a circular hole in the middle of being, both sides respectively have flute profile, two flute profiles have the Al squeezing material cut-out workpiece of convex tendon near the inboard, both sides of bottom land, it is one mutual to perforation that two side lower parts of handgrip pedestal two flute profiles respectively have, bottom close-fitting socket one inside extending tube of handgrip pedestal circular hole, respectively inlay in two flute profiles of handgrip pedestal and connect a U-lag plastic lining, the U-lag plastic lining is that top and middle part are U-lag, the bottom is flat-bottom slot, the both sides of flat-bottom slot have the Plastic Parts to boring a hole mutually, two outsides of U-lag plastic lining respectively have sulculus, two sulculuses of U-lag plastic lining are corresponding to two convex tendons in the handgrip pedestal flute profile, two U-lag plastic lining bottoms to the perforation corresponding to handgrip pedestal two flute profile both sides to the perforation, a left side connects part, and even part is fixedly sleeved in the bottom of left hand handle and right handgrip respectively with the right side, a left side connects part and the right side connects the workpiece that part is the Al squeezing material section of a bottom zone circle shape, the cylinder that left even part and the right top that connects part have a Vehicle Processing to form, left hand handle and right handgrip are that the upper and lower has crooked aluminium pipe, left side 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 side lock-connecting piece is one to strike out flute profile, the both sides of flute profile have mutual to wearing the aluminum component of circular hole, right lock-connecting piece is the sliced pieces of the Al squeezing material of a middle band U-lag, with a left side connect part and right connect part correspond respectively to handgrip pedestal two flute profile both sides to perforation, with two U-lag plastic lining bottoms to the perforation, penetrate and stubborn connecing with two pairs of lock bolts, allow the bottom of left hand handle and right handgrip be meshed with two U-lag plastic linings in being connected in handgrip pedestal two flute profiles, safety catch is the Plastic Parts that has the U-shaped card, safety catch is connected in the top of the rear side of handgrip pedestal the right groove, left side lock-connecting piece mutual to wearing the circular hole hole cylinder that is rotationally connected, hole cylinder connects quick detach, quick disassemble lock is connected on the 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 the plug that expands, the handgrip pedestal is fixed in the front fork tube, and the top circular hole of handgrip pedestal is filled in stifle; Front-wheel is installed on the front fork, trailing wheel is installed on the back vent, back pole-bracket is also installed on the 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 the five-way pipe by the 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 back chain wheel and the 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 beneficial effects of the utility model are: the utility model front-axle beam and the back rest adopt rectangular tube, the rectangle pore of the back rest is placed battery and controller, make the putting position of controller of the present utility model and battery relative hidden, appearance effect is good, gangbar adopts metal round rod, make and the utlity model has the intensity height, in light weight, 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 seat pipe foldable base, make the utility model folding and open more convenient, mix the folding handgrip of the better V font of structure again, of the present utility model folding found no fault with more.

Description of drawings:

Fig. 1 is structure of the present utility model and schematic appearance

Fig. 2 is the folding figure of the folding handgrip of the utility model V font

Fig. 3 is the utility model vehicle body folding process figure

Fig. 4 is the folding design sketch that finishes of the present utility model

Among the figure: 1---vehicle body, 2---front fork, 3---the V font folds handgrip, and 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---the front pipe, and 121---front-axle beam, 122---the back rest, 131---preceding folding leaf, 132---the folding leaf in back, 141---the five-way base, 142---the five-way pipe, 15---back vent, 161---seat pipe foldable base, 162---the folding leaf of seat pipe, 163---following pipe, 17---seat pipe folding fastener, 18---gangbar, 19---locating button; The folding handgrip 3 of V font also comprises: 31---the handgrip pedestal, 311---inside extending tube, 32---the U-lag plastic lining, 331---a left side connects part, 332---the right part that connects, 341---the 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---the control lock, and 942---speed control crank, 943---the outage brake lever.

The specific embodiment:

According to Fig. 1, described V-arrangement can be carried out the formula portable electric bicycle folding, comprises vehicle body 1, front fork 2, the folding handgrip 3 of V font, 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 pipe 11, front-axle beam 121, the back rest 122, folding frontal lobe 131, folding posterior lobe 132, five-way base 141, five-way pipe 142, back vent 15, seat pipe foldable base 161, the folding leaf 162 of seat pipe, following pipe 163, manages folding fastener 17, gangbar 18 and locating button 19;

Described front-axle beam 121 is that front end both sides up and down dash the rectangular metal pipe that the circular arc recess is arranged, the external diameter of the circular arc recess of described front-axle beam 121 and described front pipe 11 matches, the front end of described front-axle beam 121 welds the middle part of described front pipe 11, described folding frontal lobe 131 is welded in the rear end of described front-axle beam 121, described folding frontal lobe 131 is that sheetmetal both sides are bent into flute profile in the right angle backward, the top and the bottom on the both sides of flute profile are respectively with a mutual blanked part to perforation, on the blade face of described folding frontal lobe 131 rectangular opening is arranged, 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 zone circle holes, base, top margin is bending forward, the metal piece of band rectangular opening on the blade face, the rectangular opening of described folding posterior lobe 132 can be filled in described controller 83, the rectangular opening of described folding posterior lobe 132 is corresponding to the rear end of the described back rest 122, and welding, there is a pair of perforation at the rear portion of the described back rest 122, described back vent 15 is welded in the both sides of the described back rest 122 rear ends, the rear end that described back vent 15 is two oval tubes respectively is welded with the parts of trailing wheel connecting strap, the both sides of the described back rest 122 rear ends and the weld of described back vent 15 are welded with reinforcing chip, described five-way base 141 is welded in the below of the described back rest 122 front portions, the both sides that described five-way base 141 is lower ends dash the rectangular tube that the circular arc recess is arranged, described five-way pipe 142 is welded in the bottom of described five-way base 141, the described seat pipe of the top welding foldable base 161 at the described back rest 122 rear portions, the rear end pore of the described back rest 122 is furnished with interior plug, and can interior plug be fixed in the rear end of the described back rest 122 by bolt.

Described seat pipe foldable base 161 is that the right angle that makes progress, sheetmetal both sides is bent into flute profile, the rear end is folding upwards, 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 following pipe 163 is metal circular tubes that the top has pipe clamp, the top of described following pipe 161 has cracks, the rear side of bottom has tapped bore, the folding leaf 162 of described seat pipe is welded in the front side of described following pipe 163 lower ends, described seat pipe folding fastener 17 comprises Button Block, clasp, spring and caging bolt, described Button Block is that a bullion sheet two is bent into flute profile in the right angle backward, 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 following pipe 163 lower ends, the circle hole, bottom of the folding leaf 162 of described seat pipe is by being rotationally connected to perforation to lock bolt and described seat pipe foldable base 161, described clasp is that top is arc-shaped bend, the middle part is cast, the bottom is the Al squeezing material slice processing part of hook-type, on the arc-shaped curved surface that described clasp is perforate is arranged, the circle hole of described clasp is by being rotationally connected to perforation to lock bolt and described Button Block, described caging bolt penetrates in the perforate on the arc-shaped curved surface of described clasp, penetrate in the spring again, be fastened in the tapped bore of described following pipe 163, described clasp is buckled on the bending edges backward of described seat pipe foldable base 161 again.

Described gangbar 18 is round bars of two two inside right angle bendings, the front of gangbar two round bars is worn the hole, the end points of rear end is with threaded hole, the tapped bore of one round bar of described gangbar two round bars is twisted and is connect a small screw, penetrate going up in the circle hole of the folding leaf 162 of described seat pipe then, the rear end of another round bar of 18 liang of round bars of described gangbar penetrates going up in the circle hole of the folding leaf of seat pipe, and with tapped bore corresponding to the small screw on the round bar, twist and connect, the front end of 18 liang of round bars of described gangbar penetrate described folding frontal lobe 131 tops in the 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 following pipe 163, described locating button 19 is by the top of bolt in the described back rest 122 front ends, described locating button 19 is after this car is folding, described following pipe 163 fastened, described vehicle seat 4 is installed in described following the pipe 163, described vehicle seat 4 comprises seat of honour pipe and saddle, the rear of described saddle has draws handle, described drawing being 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, described drawing and being connected of described saddle, be by four both sides half slot to be arranged, middle punching with holes, connect by the stubborn of two pairs of bolt and nuts, four both sides there is half slot, the synthetic two pairs of shape parts of middle punching with holes, and draw two of half shaped as frame described, be connected with two support silk clamp fittings of described saddle bottom, described saddle is connected in the top of described seat of honour pipe.

Described front fork 2 is rotationally connected by seven bowls and described front pipe 11, described front fork 2 comprises wheel fork and front fork tube, described front fork 2 is rotationally connected by seven bowls and described front pipe 11, the wheel of described front fork 2 is stuck described front-wheel 5 is installed, described trailing wheel 6 is installed on the trailing wheel connecting strap of described back vent 15, described front-wheel 5 is 8 inches wheels, and described trailing wheel is 12 inches wheels that have wheel hub motor 81.

Described V font folds handgrip 3, comprise handgrip pedestal 31, inside extending tube 311, U-lag plastic lining 32, a left side 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 handgrip pedestal 31, respectively have flute profile, two flute profiles have convex tendon near the both sides of bottom land Al squeezing material cut-out workpiece with a circular hole, both sides in the middle of being, it is one mutual to perforation that two side lower parts of 31 liang of flute profiles of described handgrip pedestal respectively have, one tapped bore is arranged at the top of described handgrip pedestal 31 the right groove rear sides, the bottom close-fitting socket one described inside extending tube 311 of described handgrip pedestal 31 circular holes.

Described U-lag plastic lining 32 is that top and middle part are U-lag, the bottom is flat-bottom slot, the both sides of flat-bottom slot have the Plastic Parts to boring a hole mutually, two outsides of described U-lag plastic lining 32 respectively have sulculus, the sulculus of two described U-lag plastic linings 32 is corresponding to the convex tendon in two described handgrip pedestal 31 flute profiles, and be pushed in the flute profile of two described handgrip pedestals 31, with two described U-lag plastic linings, 32 bottoms to perforation corresponding to 31 liang of flute profile both sides of two described handgrip pedestals to perforation, the U-lag of described U-lag plastic lining 32 and described left hand 341 and the caliber of described right handgrip 342 be complementary.

A described left side connects part 331 and the described right part 332 that connects, it is the workpiece of the Al squeezing material section of a bottom zone circle shape, a described left side connects part 331 and the described right top that connects part 332, the cylinder that has a Vehicle Processing to form, a described left side connects part 331 and the described right cylinder that connects 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 to 341 with a described left side even socket place of part 331, described right handgrip 342 is equipped with a pin with the described right socket place that connects part 332, with a described left side connect part 331 and described right connect part 332 respectively by the lock bolt is rotationally connected with described pedestal 31 flute profiles two side lower parts in boring a hole, with two described U-lag plastic linings, 32 bottoms to the perforation in.

Described left lock-connecting piece 351, it is mutual to wearing the aluminum component of circular hole to be that both sides that strike out flute profile, flute profile have, 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 a middle band U-lag, described right lock-connecting piece 352 is welded in the rear side of described right handgrip 342 bottoms, 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 of perforation, described hole cylinder 36 penetrate described left lock-connecting piece 351 up and down to wearing in the circular hole and mutual to wearing the circular hole normal-running fit with described left lock-connecting piece 351.

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

Described safety catch 38 is the Plastic Parts that have the 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 connected in the tapped bore of the back upper lateral part of described handgrip pedestal 31 the right grooves by bolt, and the U-shaped card of described safety catch 38 is corresponding with the fast dismounting handle of described quick detach 37, and engaging.

Described back pole-bracket 7 is to be welded with the metal wire rod bending, the crooked lopping in two front ends of described back pole-bracket 7 and two lower ends, the circle hole of two front ends of described back pole-bracket 7 is by being connected perforation with the rear portion of the described back rest 122 the lock bolt, the circle hole 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 can allow the folding back of this car erect and place, and described back pole-bracket 7 still is the back mounting of this car.

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 the described five-way pipe 142 by the axis accessory, two described cranks 82 are installed on the two ends of described axis 81, described chain wheel 84 is fixedly connected on the right crank of described crank 82, two described pedals 83 are fastened to the outer end of two described cranks 82, 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 the 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 disposes combination with the wheel hub one 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 with interior plug by the rear end of bolt in the described back rest 122, described controller 93 is positioned over the front portion of the described back rest 122 rectangle pores, described master cock 94 comprises power supply control lock 941, speed control crank 942 and outage brake lever 943, described power supply control lock 941 is installed on the described front-axle beam 121, described speed control crank 942 is installed on the described right handgrip 942, described outage brake lever 943 is installed on described left hand on 341 and on the described right handgrip 342, described power supply control lock 941, described speed control crank 942 and described outage brake lever 943, be connected with described controller 93 with connector by connection lead, described controller 93 is connected with described wheel hub motor 91 with described battery 92 with connector by connection lead.

Claims

1. quick-folding saddle drag type portable electric bicycle, comprise vehicle body, front fork, the V font folds handgrip, vehicle seat, front-wheel, trailing wheel, back pole-bracket, man power driving mechanism and electric drive system, it is characterized in that: vehicle body comprises the front pipe, front-axle beam, the back rest, folding frontal lobe, folding posterior lobe, the five-way base, the five-way pipe, back vent, seat pipe foldable base, the folding leaf of seat pipe, following seat pipe, seat pipe folding fastener, gangbar and locating button, front-axle beam and the back rest all are the rectangular metal pipes, folding frontal lobe is that sheetmetal both sides are bent into flute profile in the right angle backward, the top and the bottom on the both sides of flute profile are respectively with a mutual blanked part to perforation, on the blade face of folding frontal lobe rectangular opening is arranged, folding posterior lobe is zone circle hole, base, top margin is bending forward, the metal piece of band rectangular opening on the blade face, the five-way base is that the both sides of lower end dash the rectangular tube that the circular arc recess is arranged, back vent is the parts that the rear end of two oval tubes respectively is welded with the trailing wheel connecting strap, the middle part of the front end welding front pipe 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 pipe 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 can interior plug be fixed in the rear end of the back rest by bolt, the bottom of folding frontal lobe is rotationally connected by the circle hole to lock bolt and folding posterior lobe to perforation; Seat pipe foldable base is that the right angle that makes progress, sheetmetal both sides is bent into flute profile, the rear end is folding upwards, 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 that top margin and base are respectively with the metal piece in a circle hole, following seat pipe is the metal circular tube that the top has pipe clamp, the top of following seat pipe has cracks, the rear side of bottom has tapped bore, seat pipe folding fastener comprises Button Block, clasp, spring and caging bolt, Button Block is that a bullion sheet two is bent into flute profile in the right angle backward, the both sides of flute profile are respectively with a mutual blanked part to perforation, the top of clasp is handle, last porose, the zone circle hole, middle part of clasp, the bottom buckle, the folding leaf of seat pipe is welded in down the front side of seat pipe lower end, Button Block is welded in down the rear side of seat pipe lower end, the Xia Quan hole of the folding leaf of seat pipe is by being rotationally connected to perforation to lock bolt and seat pipe foldable base, the circle hole of clasp is by being rotationally connected to perforation to lock bolt and Button Block, caging bolt penetrate clasp in the hole, penetrate in the spring again, be fastened to down in the tapped bore of seat pipe, clasp is buckled on the bending edges backward of seat pipe foldable base again; Gangbar is the round bar of two two inside right angle bendings, the front of gangbar two round bars is worn the hole, the end points of rear end is with threaded hole, the tapped bore of one round bar of gangbar two round bars is twisted and is connect a small screw, penetrate going up in the circle hole of the folding leaf of seat pipe then, the rear end of another round bar of gangbar two round bars penetrates going up in the circle hole of the folding leaf of seat pipe, and with tapped bore corresponding to the small screw on the round bar, twist and connect, the front end of gangbar two round bars penetrate folding frontal lobe top in the perforation, and locate with pin, locating button is by the top of bolt in back rest front end, locating button is after this car is folding, to descend a pipe thread to live, vehicle seat is installed on down in the seat pipe, vehicle seat comprises seat of honour pipe and saddle, and saddle is that the rear has the saddle that draws handle; Front fork is rotationally connected by seven bowls and front pipe, the folding handgrip of V font is installed in the front fork tube of front fork, the folding handgrip of V font comprises the handgrip pedestal, inside extending tube, the U-lag plastic lining, a left side connects part, the right part that connects, the left hand handle, right handgrip, left side lock-connecting piece, right lock-connecting piece, hole cylinder, quick detach, safety catch, the handgrip pedestal is with a circular hole in the middle of being, both sides respectively have flute profile, two flute profiles have the Al squeezing material cut-out workpiece of convex tendon near the inboard, both sides of bottom land, it is one mutual to perforation that two side lower parts of handgrip pedestal two flute profiles respectively have, bottom close-fitting socket one inside extending tube of handgrip pedestal circular hole, respectively inlay in two flute profiles of handgrip pedestal and connect a U-lag plastic lining, the U-lag plastic lining is that top and middle part are U-lag, the bottom is flat-bottom slot, the both sides of flat-bottom slot have the Plastic Parts to boring a hole mutually, two outsides of U-lag plastic lining respectively have sulculus, two sulculuses of U-lag plastic lining are corresponding to two convex tendons in the handgrip pedestal flute profile, two U-lag plastic lining bottoms to the perforation corresponding to handgrip pedestal two flute profile both sides to the perforation, a left side connects part, and even part is fixedly sleeved in the bottom of left hand handle and right handgrip respectively with the right side, a left side connects part and the right side connects the workpiece that part is the Al squeezing material section of a bottom zone circle shape, the cylinder that left even part and the right top that connects part have a Vehicle Processing to form, left hand handle and right handgrip are that the upper and lower has crooked aluminium pipe, left side 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 side lock-connecting piece is one to strike out flute profile, the both sides of flute profile have mutual to wearing the aluminum component of circular hole, right lock-connecting piece is the sliced pieces of the Al squeezing material of a middle band U-lag, with a left side connect part and right connect part correspond respectively to handgrip pedestal two flute profile both sides to perforation, with two U-lag plastic lining bottoms to the perforation, penetrate and stubborn connecing with two pairs of lock bolts, allow the bottom of left hand handle and right handgrip be meshed with two U-lag plastic linings in being connected in handgrip pedestal two flute profiles, safety catch is the Plastic Parts that has the U-shaped card, safety catch is connected in the top of the rear side of handgrip pedestal the right groove, left side lock-connecting piece mutual to wearing the circular hole hole cylinder that is rotationally connected, hole cylinder connects quick detach, quick disassemble lock is connected on the 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 the plug that expands, the handgrip pedestal is fixed in the front fork tube, and the top circular hole of handgrip pedestal is filled in stifle; Front-wheel is installed on the front fork, trailing wheel is installed on the back vent, back pole-bracket is also installed on the 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 the five-way pipe by the 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 back chain wheel and the 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 front end both sides up and down dash the rectangular metal pipe that the circular arc recess is arranged, the rectangular opening of described folding posterior lobe can be filled in described controller, the rectangular opening of described folding posterior lobe is corresponding to the rear end of the described back rest, and welding, there is a pair of perforation at the rear portion of the described back rest, the external diameter of the circular arc recess of described front-axle beam and described front pipe matches, the rectangular opening of described folding frontal lobe can be filled in described controller, the rectangular opening of described folding frontal lobe is corresponding to the rear end of described front-axle beam, and welding, 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: described clasp is that top is that arc-shaped bend, middle part are that cast, bottom are the Al squeezing material slice processing part of hook-type, on the arc-shaped curved surface that described clasp is perforate is arranged.

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 a described following pipe.

5. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: the rear of described saddle has draws handle, described drawing being 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, described drawing and being connected of described saddle, be by four both sides half slot to be arranged, middle punching with holes, connect by the stubborn of two pairs of bolt and nuts, four both sides there is half slot, the synthetic two pairs of shape parts of middle punching with holes, and draw two of half shaped as frame described, be connected with two support silk clamp fittings of described saddle bottom, described saddle is connected in the top of described seat of honour pipe.

6. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: described front-wheel is 8 inches wheels, described trailing wheel is 12 inches wheels that have wheel hub motor; Described back pole-bracket is to be welded with the metal wire rod bending, the crooked lopping in two front ends of described back pole-bracket and two lower ends, the circle hole of two front ends of described back pole-bracket is by being connected perforation with the rear portion of the described back rest the lock bolt, the circle hole of two lower ends of described back pole-bracket is connected with the wheel shaft of described trailing wheel, described back pole-bracket can allow the folding back of this car erect and place, and described back pole-bracket still is the back mounting of this car.

7. quick-folding saddle drag type portable electric bicycle according to claim 1, it is characterized in that: a tapped bore is arranged at the top of described handgrip pedestal the right groove rear side, the sulculus of two described U-lag plastic linings is corresponding to the convex tendon in the two described handgrip pedestal flute profiles, and be pushed in the flute profile of two described handgrip pedestals, with two described U-lag plastic lining bottoms to the perforation corresponding to two described handgrip pedestals, two flute profile both sides to the perforation, the caliber of the U-lag of described U-lag plastic lining and described left hand handle and described right handgrip is complementary, described left hand handle is equipped with a pin with the socket place that a described left side connects part, and described right handgrip and the described right socket place that connects 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 in described left lock-connecting piece up and down the hole cylinder side in the circular hole in the 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 connected in the tapped bore of the back upper lateral part of described handgrip pedestal the right groove by bolt, 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 one configuration combination of described motor and described trailing wheel, 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 with interior plug by the rear end of bolt in the described back rest, described controller is positioned over the front portion of described back rest rectangle pore, described master cock comprises power supply control lock, speed control crank and outage brake lever, described power supply control lock is installed on the described front-axle beam, described speed control crank is installed on the described right handgrip, described outage brake lever is installed on described left hand on the last and described right handgrip, described power supply control lock, described speed control crank and described outage brake lever, be connected with described controller with connector by connection lead, described controller is connected with described wheel hub motor with described battery with connector by connection lead.