CN106080921A

CN106080921A - The flexible portable bicycle driven by up-down pedal of handle type

Info

Publication number: CN106080921A
Application number: CN201610726957.3A
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2016-11-09
Anticipated expiration: 2036-08-25
Also published as: CN106080921B

Abstract

nullA kind of flexible portable bicycle driven by up-down pedal of handle type，Including flexible handle、Front fork stem、Side arm、Middle frame、After-frame、Vehicle seat、Front-wheel、Trailing wheel and trample drive mechanism up and down，Flexible handle is by left hand handle、Right handgrip、Upper latch fitting、Lower latch fitting and handle are constituted，Side arm is formed by connecting by rotary part and front-axle beam，Middle frame is by twin beams pipe、First two-tube set、Rear casing、Five-way tube、Dead axle component、Pleated sheet、First latch hook member、Two shock-absorbing polyurethane blocks、Tow wheel and rear rack hook is formed by connecting，After-frame is by left back breeches pipe、Right back breeches pipe、Second two-tube set and heel brace are constituted，Vehicle seat is by seat pipe、Vehicle seat folded piece、Second latch hook member、Seat bar、Saddle and folding locator card are formed by connecting，Front-wheel is installed on front axle，Trailing wheel is installed on after-frame，Trample drive mechanism up and down and include two treadle parts、Two pedals、Axis、Two crank axles、Prime sprocket wheel、Prime minor sprocket、Rear class sprocket wheel、Flywheel、Prime chain and rear class chain.

Description

The flexible portable bicycle driven by up-down pedal of handle type

Technical field:

The present invention relates to a kind of folding portable bicycle, stretch the portable upper and lower override type of handle type certainly particularly to one Driving.

Technical background:

Have several money folding bicycle in the market, although have a folding bicycle that folding rate is fast, but due to structure and The reasons such as structure, also can not reach the satisfaction putting in knapsack after folding.

Summary of the invention:

The invention aims to the new type foldable mode providing a kind of handlebar with flexible handle type, the related trailing wheel of after-frame to Front folding, vehicle seat fold the mode with side arm folding linkage, can put into the flexible handle type in knapsack just after having folded Take bicycle driven by up-down pedal.The object of the present invention is achieved like this；The flexible portable bicycle driven by up-down pedal of handle type, bag Include flexible handle, front fork stem, side arm, middle frame, after-frame, vehicle seat, front-wheel, trailing wheel and trample drive mechanism up and down, it is characterized in that: stretch Contracting handle includes left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle, and left hand is being to be made straight by the upper end of pipe with right handgrip Angular distortion forms, left hand with right handgrip right-angle bending at below outside have screwed hole, upper latch fitting is by upper clamping piece, banking stop Constituting with clamping screw, upper clamping piece is the blank of an aluminium extruded type, and the two ends, left and right of upper clamping piece are respectively arranged with the circular hole of a upward and downward, on Also being connected with cracking of upward and downward on the circular hole of two upward and downwards of folder, upper clamping piece upward and downward left and right rearward of cracking respectively has on one Lower to screwed hole, the bottom of the screwed hole of left and right two upward and downward that upper clamping piece upward and downward cracks rearward pass through two bolt twist-ons one Banking stop, allows banking stop be connected to the bottom side of upper clamping piece, the centre of upper clamping piece have one crack with upper clamping piece upward and downward vertical vertical Xiang Kong, the rear end of upper clamping piece longitudinal hole connects the stop nut of a clamping screw, and left hand handle and right handgrip penetrate about upper clamping piece In the circular hole of two ends upward and downward, and by left hand with right handgrip right-angle bending at below screwed hole corresponding to the bottom side of upper clamping piece Face, with two bolts be screwed into respectively left hand with right handgrip right-angle bending at below screwed hole in, by left hand handle and right handgrip with It is spacing that upper clamping piece is made to rotate, and, be fastened to left hand with two bolts on right handgrip, with the bottom side being connected to upper clamping piece Banking stop coordinates, can be as spacing when launching with right handgrip of left hand, and clamping screw penetrates in the longitudinal hole of upper clamping piece, and twists Enter in stop nut, tighten clamping screw and can tighten up cracking of upper clamping piece upward and downward, upper clamping piece is locked left hand handle and the right hand So that left hand handle and right handgrip are fixed and can not be rotated；Lower latch fitting is made up of lower clamping piece and clamping screw, and lower clamping piece is an aluminum The blank of the type of squeezing, the two ends, left and right of lower clamping piece front portion are respectively arranged with the circular hole of a upward and downward, the circle of two upward and downwards that lower clamping piece is anterior Being connected with cracking of upward and downward on hole, the left end in the middle part of lower clamping piece has the circular hole of a upward and downward, the centre at lower clamping piece rear portion to have on one Lower to circular hole, the anterior centre of lower clamping piece has one to crack with lower clamping piece front portion upward and downward vertical longitudinal hole, lower clamping piece longitudinal direction The rear end in hole connects the stop nut of a clamping screw, and in the middle part of lower clamping piece, the circular hole of left end upward and downward connects with the upper end of front fork stem Connecing, front fork stem is made up of pipe, cylinder and front axle, fills in cylinder in the bottom pore of pipe, the bottom of pipe to and together with circle Post has a cross-perforating, and front axle penetrates in the bottom of pipe and the cross-perforating of cylinder, and wins to the right, left hand handle and right handgrip Penetrating in the circular hole of two ends, lower clamping piece left and right upward and downward, clamping screw penetrates in the longitudinal hole of lower clamping piece, and is screwed into locking spiral shell In mother, tighten clamping screw and can tighten up cracking of lower clamping piece upward and downward, lower clamping piece is locked left hand handle and right handgrip so that left hand And right handgrip fix and can not slide up and down, handle is connected to left hand the top with right handgrip, and is positioned at the upper of upper clamping piece Side；Side arm is made up of rotary part and front-axle beam, and rotary part is installed on the upward and downward circular hole in the middle of lower clamping piece rear portion, and front-axle beam is The slice processing part of aluminium extruded type, the front end of front-axle beam is grooved, and the both sides up and down of front-axle beam grooved have mutual to perforation, front-axle beam rear end Upper and lower be respectively arranged with a horizontal perforation, front-axle beam grooved mutual to be punched through to lock bolt connect rotary part；Middle frame bag Include twin beams pipe, the first two-tube set, rear casing, Five-way tube, dead axle component, pleated sheet, the first latch hook member, two shock-absorbing polyurethane blocks, Towing wheel and rear rack hook, twin beams pipe is made up of left and right two flat tube, and the front end close-fitting of twin beams pipe is socketed the first two-tube set, and first is two-tube Set is the slice processing part of an aluminium extruded type, and two slotted holes, two slotted holes of the first two-tube set and twin beams are arranged at the first two-tube set top The cast of left and right two flat tube of pipe is corresponding, and the grooved that Open Side Down is arranged at the bottom of the first two-tube set, the first two-tube set opening to The both sides of lower grooved have mutual to perforation, the first two-tube set mutual to being punched through below lock bolt and front-axle beam rear end Horizontal perforation is rotationally connected, and rear casing is the cutting workpiece of an aluminium extruded type, and two slotted holes, rear casing are arranged at the bottom of rear casing Two slotted holes corresponding with the cast of left and right two flat tube of twin beams pipe, the grooved of opening upwards is arranged at the top of rear casing, manages afterwards It is mutual to perforation, before the rearward end of rear casing opening upwards grooved both sides that the front end of set opening upwards grooved both sides has one After respectively have one mutual to perforation, rear casing is positioned at the most vertical leading section of two slotted holes and is inconjunction with twin beams pipe to have one horizontal To perforation, in the cross-perforating in rear casing two slotted hole horizontal upright front portion be socketed Five-way tube, rear casing opening upwards groove The front mutual of the rearward end of type both sides connects dead axle components to being punched through two bolts, and dead axle component is by locating shaft and two axle beds Sheet is constituted, and there is a cross-perforating rear end of pleated sheet, and pleated sheet is connected to the back lower place of rear casing by bolt and nut, tows wheel The axle that tows penetrate rear mutual perforation is neutralized in dead axle component two axle bed sheet metapore of rear end, rear casing grooved both sides, and In the latch hook transverse holes of the first latch hook member, being rotationally connected with rear casing by latch hook, the first latch hook member is by latch hook and latch hook spring structure Becoming, latch hook front portion has an elongated hole, a bolt to penetrate in the elongated hole of the first latch hook member, and penetrates in latch hook spring, then is screwed into On rear casing in the screwed hole of the rear of bottom land, the first latch hook member can second pair of hook lock after-frame under the effect of latch hook spring Pipe box, two shock-absorbing polyurethane blocks are fixed in two slotted holes of rear casing rear end, two shock-absorbing polyurethane blocks and the left back breeches pipe of after-frame Shock-absorbing effect can be played with the cooperation that offsets of two nylon plugs in the pore of right back breeches pipe front end, tow wheel and by two PU wheels and tow axle structure Becoming, two PU wheels are connected to tow the two ends of axle, and rear rack hook is connected to the left side of twin beams pipe；After-frame by left back breeches pipe, right back breeches pipe, Second two-tube set and heel brace are constituted, and the front end close-fitting of left back breeches pipe and right back breeches pipe is socketed the second two-tube set, the second two-tube set Shape and size are identical with the first two-tube set, the second two-tube set mutual to the horizontal stroke being punched through lock bolt and pleated sheet rear end Being rotationally connected to perforation, heel brace is connected to the left side in the middle part of left back breeches pipe, and after after-frame collapsed forward, left back breeches pipe rearward end is connected The rear rack hook being connected to the left side, twin beams pipe leading section is hooked；Vehicle seat includes seat pipe, vehicle seat folded piece, the second latch hook member, seat bar, saddle With fold locator card, vehicle seat folded piece is connected part, connecting rod and U-shaped plug by diapsid, and diapsid connects before part is fastened to seat pipe lower end Side, diapsid connects circular hole and mutual be rotationally connected perforation in front end, rear casing grooved both sides of part, and the rearward end of connecting rod is with double Pass connects the slotted hole of part and connects, and U-shaped plug is filled in the slotted hole of ring part, and is positioned at the lower section in rod rear end portion, connecting rod Two front ends are connected with the perforation laterally over of front-axle beam rear end, and the front side of seat pipe lower end connects has the grooved of the second latch hook member even Part, the latch hook of the second latch hook member connect with grooved part both sides mutual to perforation be connected, the second latch hook member by grooved connect part, latch hook, Latch hook spring and interlocking bolt are constituted, and interlocking bolt is fastened on rear casing in the screwed hole of the front of bottom land, the second latch hook The shape of the latch hook of part is similar to the latch hook of the first latch hook member, and a bolt penetrates in the elongated hole of the second latch hook member, and penetrates into lock In hook spring, then being screwed in seat pipe, the latch hook of the second latch hook member can be with the semicircle of interlocking bolt by the effect of interlocking spring Head interlocking, connects in the pore at seat pipe top, and seat bar is installed saddle, folds locator card and is connected to the first two-tube set back upper place； Front-wheel is installed on front axle, and trailing wheel is installed on the rear end of after-frame, opens the latch hook of header board the second latch hook member, and is rolled over forward by vehicle seat Folded, under the effect of connecting rod, vehicle seat is inconjunction with side arm, flexible handle, front fork stem fold to the lower section of middle frame together with front-wheel, reaches To perfect folding effect, and under the effect folding locator card engaging seat pipe, by vehicle seat, side arm, flexible handle, front fork stem and Middle frame is fixed on folded state together；Trample drive mechanism up and down and include two treadle parts, two pedals, axis, two crank axles, prime Sprocket wheel, prime minor sprocket, rear class sprocket wheel, flywheel, prime chain and rear class chain, two treadle parts are socketed on the two ends of locating shaft, Central axis is connected in Five-way tube, and two crank axles are installed on the two ends of axis, and the bearing of two crank axles is slidably connected to two and steps on In the slotted hole of rod member, prime sprocket wheel is fixedly connected on the crank axle on the right of two crank axles, and the crankshaft bearing of two crank axles is even Be connected in two treadle part cast holes, prime minor sprocket and rear class sprocket wheel be socketed on connect former piece and consequent to lock bolt to the right Winning on end, flywheel is connected to the right side of trailing wheel, and prime chain is wire-wrapped on prime sprocket wheel and prime minor sprocket, rear class chain around It is connected on rear class sprocket wheel and flywheel.

The invention has the beneficial effects as follows: the present invention ingenious cooperation by aluminium extrusion so that whole vehicle frame does not all have electricity Weldering welding, represents a kind of new trend of the manufacturing process of bicycle；The handlebar of the present invention uses the form of flexible handle so that The folding of handlebar reaches the simplest, and reaches most effective；Front fork stem is connected to the upward and downward circle of the right-hand member in the middle part of lower clamping piece Kong Zhong so that front fork has been accomplished ultimate attainment simple and can coordinate maximally effective folding；The front tumbler of the present invention uses grooved Part and the cooperation of the rotary part being connected to lower clamping piece rear portion, include plane bearing and shock-absorbing polyurethane cylinder in rotary part, Make front tumbler both simple and effective and also there is incabloc function；Vehicle frame use after-frame forward with middle frame fold, vehicle seat with in Frame and side arm linkage fold, and have reached minimizing and optimization of frame folding；Two slotted holes of rear sleeve rear end are installed shock-absorbing Polyurethane block, makes after-frame have incabloc function after plugging together with left back breeches pipe and right back breeches pipe front end vexed；Two-tube second Overlap mutual right side in perforation and pleated sheet cross-perforating is won on lock bolt end, connect prime minor sprocket and rear class chain Wheel so that after-frame of the present invention folds with middle frame and is achieved；Use the type of drive of upper and lower override type, allow the rear end of rear sleeve pacify Dress there is no interference when trampling up and down after towing wheel so that the present invention can tow after folding.

Accompanying drawing illustrates:

Fig. 1 is present configuration schematic diagram；

Fig. 2 is that the present invention stretches the expansion schematic diagram of handle；

Fig. 3 is that the present invention stretches the gathering schematic diagram of handle；

Fig. 4 is front-axle beam of the present invention and the structural representation of both sides sheet；

Fig. 5 is folding process schematic diagram of the present invention；

Fig. 6 is that the present invention folds complete figure；

In figure: 1 stretches handle, 2 front fork stems, 3 side arms, frame in 4,5 after-frames, 6 cars Seat, 71 front-wheels, 72 trailing wheels, about 8 trample drive mechanism；The handle 1 that wherein stretches also includes: 11 left hands , 12 right handgrips, latch fitting on 13,14 times latch fittings, 15 handles；Middle frame 4 also includes: 41 twin beams Pipe, 42 first two-tube sets, 43 rear casings, 44 dead axle components, 45 first latch hook member, 46 tow Wheel；Vehicle seat 6 also includes: vehicle seat 6 also includes: 61 seat pipe, 62 vehicle seat folded pieces, 63 second latch hook member, 64 bars, 65 saddles.

Detailed description of the invention:

According to Fig. 1, Fig. 2 and Fig. 4, the described flexible portable bicycle driven by up-down pedal of handle type, including flexible handle 1, Front fork stem 2, side arm 3, middle frame 4, after-frame 5, vehicle seat 6, front-wheel 71, trailing wheel 72 and trample up and down drive mechanism system 8；

Described flexible handle 1 include left hand 11, right handgrip 12, upper latch fitting 13, lower latch fitting 14 and handle 15, described Left hand is all to be formed as right-angle bending by the upper end of pipe 11 and described right handgrip 12, and described left hand is 11 and the described right hand Outside below at 12 right-angle bendings is respectively had a screwed hole, and described left hand distinguishes the screwed hole of 11 and described right handgrip 12 Corresponding to the bottom side of described upper latch fitting 13 upper clamping piece, by two bolts twist-on respectively to described left hand straight to 11 and described right handgrip 12 At angular distortion in the screwed hole of lower outer, it is connected to described left hand and the bolt of 11 and described right handgrip 12 is laid respectively at described The bottom side of upper latch fitting 13 upper clamping piece, described left hand respectively has a screwed hole the side of 11 and described right handgrip 12 lower end, described After left hand is screwed into bolt 11 and described right handgrip 12 lower end side screwed hole, can be as described left hand 11 and the described right side Hands is spacing with what described lower latch fitting 14 lower clamping piece slided up and down 12.

Described upper latch fitting 13 is made up of upper clamping piece, banking stop and clamping screw, and described upper clamping piece is an aluminium extruded type Blank, the two ends, left and right of described upper clamping piece are respectively arranged with the circular hole of a upward and downward, on the circular hole of two upward and downwards of described upper clamping piece also Being connected with cracking of upward and downward, described upper clamping piece upward and downward left and right rearward of cracking is respectively arranged with the circular hole of a upward and downward, described upper clamping piece In the circular hole of left and right two upward and downward that upward and downward cracks rearward, tapping becomes screwed hole, described upper clamping piece upward and downward to crack a left side rearward The bottom of the screwed hole of right two upward and downwards, by the banking stop described in two bolt twist-ons one, allows described banking stop be connected to described The bottom side of upper clamping piece, and be positioned at described upper clamping piece upward and downward and crack rearward, described banking stop, is portions with holes, two ends Part, is connected to the described banking stop of described upper clamping piece bottom side, and is connected to described left hand two on 11 and described right handgrip 12 Bolt coordinates, spacing when 11 and described right handgrip 12 can be launched as described left hand, and the centre of described upper clamping piece has One cracks with described upper clamping piece upward and downward vertical longitudinal hole, and the rear end of described upper clamping piece longitudinal hole is connected with a counterbore, described on The counterbore of folder is inlayed the stop nut of clamping screw described in, tightens described clamping screw and can tighten up upper clamping piece upward and downward Crack, upper clamping piece is locked left hand handle and right handgrip so that left hand handle and right handgrip are fixed and can not be rotated, described locking Bolt is by bolt and screws handle and is formed by connecting, and described clamping screw also includes stop nut.

Described lower latch fitting 14 is made up of lower clamping piece and clamping screw, and described lower clamping piece is the blank of an aluminium extruded type, The two ends, left and right of described lower clamping piece front portion are respectively arranged with the circular hole of a upward and downward, on the circular hole of two upward and downwards that described lower clamping piece is anterior also Being connected with cracking of upward and downward, the left end in the middle part of described lower clamping piece has the circular hole of a upward and downward, and in the middle part of described lower clamping piece, left end is upper Lower corresponding with the pipe footpath close-fitting of described front fork stem 2 to circular hole, described front fork stem 2 is made up of pipe, cylinder and front axle, pipe Bottom pore in fill in cylinder, the bottom of pipe to and have a cross-perforating together with cylinder, front axle penetrate pipe bottom and In the cross-perforating of cylinder and win to the right, the upward and downward circular hole of left end and described front fork stem 2 pipe in the middle part of described lower clamping piece The socket of upper end close-fitting, the centre at described lower clamping piece rear portion have the circular hole of a upward and downward, the centre of described lower clamping piece have one with lower folder Part upward and downward cracks vertical longitudinal hole, and the rear end of described lower clamping piece longitudinal hole is connected with the stop nut of clamping screw described in, Described left hand penetrates 11 and described right handgrip 12 in the circular hole of two ends, described lower clamping piece left and right upward and downward, described locking Bolt penetrates in the longitudinal hole of described lower clamping piece, and is screwed in stop nut, tightens described clamping screw and can tighten up lower clamping piece Cracking of upward and downward, by the left hand described in described lower clamping piece locking 11 and described right handgrip 12 so that described left hand 11 and described right handgrip 12 are fixed and can not be slided up and down.

Described handle 15 is a working of plastics, and two lower ends of described handle 15 are respectively connected with the circle of a upward and downward, described handle The aperture of the two circle collar aperture of 15 is with described left hand corresponding for the external diameter of 11 and described right handgrip 12, and the top of described handle 15 is The handle of one handle, two collar aperture of described handle 15 are socketed on described left hand respectively under 11 and described right handgrip 12 knee Side, described handle 15 is positioned at the top of described upper clamping piece.

Described side arm 3 includes rotary part, front-axle beam and both sides sheet, and described rotary part includes front axle tube, two deep Ditch bearing, a plane bearing and have a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore is respectively milled with places rotation zanjon bearing Counterbore, front axle tube close-fitting from bottom to top is pressed in the upward and downward circular hole in the middle of described lower clamping piece rear portion, and two zanjon bearings are inlayed respectively Being embedded in the counterbore of front axle tube upper and lower side, plane bearing is lining on the zanjon bearing of described front axle tube upper end, then by poly-for shock-absorbing ammonia Ester cylinder is put on plane bearing, shock-absorbing polyurethane cylinder axially have a hole, and by the endoporus of two zanjon bearings, plane bearing Axis hole and the hole of shock-absorbing polyurethane cylinder, corresponding to the upper and lower two sides of grooved, described front-axle beam front end mutual to perforation, with to lock The grooved of described tumbler with described front-axle beam is connected by bolt, and described front-axle beam is the slice processing part of aluminium extruded type, described before The front end of beam is grooved, the upper and lower of rear end is respectively arranged with a horizontal perforation, there is reinforcement at middle part, above described front-axle beam rear end in Between have a grooved gap, the vertical phase of cross-perforating above the grooved gap above described front-axle beam rear end and described front-axle beam rear end Handing over, the corner of described front-axle beam reinforcement is respectively arranged with a circular hole, and tapping becomes screwed hole in the circular hole of described front-axle beam reinforcement corner, The both sides up and down of described front-axle beam grooved have mutual to perforation, and the both sides up and down of described front-axle beam grooved strike out fillet, limit sheet Being by the rectangular patch of plastic injection, the corner of limit sheet rectangle is respectively arranged with a hole, the hole of sheet rectangle corner, limit and described front-axle beam The screwed hole of reinforcement corner is corresponding, and both sides sheet is connected to the right and left of described front-axle beam by bolt.

Described middle frame 4 includes twin beams pipe the 41, first two-tube set 42, rear casing 43, Five-way tube, dead axle component 44, folds Sheet, the first latch hook member 45, shock-absorbing polyurethane block, towing wheel 46 and rear rack hook, described twin beams pipe 41 is made up of left and right two flat tube, The front end close-fitting of described twin beams pipe 41 is socketed in the two-tube set of described first 42, and the rear end close-fitting of described twin beams pipe 41 is socketed on In described rear casing 43, the first described two-tube set 42 is the slice processing part of an aluminium extruded type, on described first two-tube set 42 There are two slotted holes in portion, and two slotted holes of described first two-tube set 42 are relative with the cast of left and right two flat tube of described twin beams pipe 41 Should, described first two-tube set 42 is respectively arranged with an even limit between two slotted holes up and down, and the bottom of described first two-tube set 42 has The grooved that Open Side Down, the both sides of described first two-tube set 42 Open Side Down grooved have mutual to perforation, described first pair The two sides of pipe box 42 Open Side Down grooved strike out fillet, between described first 42 liang of slotted holes of two-tube set on connect on the face on limit Left and right have the hole of two upward and downwards, described first two-tube set 42 mutual to being punched through after lock bolt and described front-axle beam Perforation horizontal below end is rotationally connected.

Described rear casing 43 is the cutting workpiece of an aluminium extruded type, and two slotted holes, institute are arranged at the bottom of described rear casing 43 Stating two slotted holes of rear casing 43 corresponding with the cast of left and right two flat tube of described twin beams pipe 41, described rear casing 43 is positioned at two Being respectively arranged with an even limit up and down between slotted hole, the top of described rear casing 43 has the grooved of opening upwards, described rear casing 43 to open The front end of mouth upwards grooved both sides has one mutual to perforation, the rearward end of described rear casing 43 opening upwards grooved both sides Respectively have one mutual to perforation, between 43 liang of slotted holes of described rear casing on connect limit before and after respectively have a upward and downward Screwed hole, between 43 liang of slotted holes of described rear casing on connect the left and right of limit rearward end and respectively have a vertical hole, described rear casing 43 Between two slotted holes, the left and right of upper and lower two even leading sections, limit respectively have one the most vertical to perforation, and described rear casing 43 is positioned at two The leading section that slotted hole is the most vertical is inconjunction with the rear end of described twin beams pipe 41 and has a horizontal perforation, described rear casing 43 liang The hole having several upward and downward on the rear end face on limit, the upper and lower sides of described 43 liang of slotted hole rear ends of rear casing is connected under between slotted hole Respectively having one mutual to perforation, what the upper and lower sides of described 43 liang of slotted hole rear ends of rear casing was mutual fixes a pin to perforation is each Nail, the side at two ends, described Five-way tube left and right respectively have upward and downward mutual to wearing screwed hole, described Five-way tube close-fitting penetrates In the cross-perforating in 43 liang of slotted hole horizontal upright front portions of described rear casing, and by side, two ends, described Five-way tube left and right two Lower to mutual to wearing screwed hole, the left and right corresponding between 43 liang of slotted holes of described rear casing upper and lower two even leading sections, limit is biphase The most vertical to perforation, with four bolts by mutual for the left and right two of between 43 liang of slotted holes of described rear casing upper and lower two even leading sections, limit Vertical to perforation, mutual with side, two ends two, described Five-way tube left and right upward and downward tighten fixing to wearing screwed hole, described after The rearward end of pipe box 43 opening upwards grooved both sides front mutual to be punched through two bolts connect described in dead axle component 44, Described dead axle component 44 is made up of locating shaft and two axle bed sheets, and locating shaft is the axial axle with axial threaded hole at two ends, The middle part close-fitting of locating shaft is socketed in the upper hole of two axle bed sheets, and axle bed sheet is the slice processing part of an aluminium extruded type, axle bed sheet There is the axis hole of one and locating shaft socket upper end, and there are a horizontal screwed hole, the rear end of axle bed sheet bottom in the front end of axle bed sheet bottom A transverse holes, axle bed sheet bottom surface is had to have a screwed hole upwards, two axle bed sheets to be connected to the middle part of locating shaft, two axles by shaft hole sleeve Seat sheet bottom surface screwed hole upwards connects two about the rearward end of limit between two bolts and 43 liang of slotted holes of described rear casing Vertical hole connects, and the horizontal screwed hole of two axle bed sheet lower front part is by two bolts and described rear casing 43 opening upwards grooved two Previous mutual connect perforation of end, rear flank, described pleated sheet is the sliced pieces of an aluminium extruded type, after described pleated sheet End has a cross-perforating, and the front end face of described pleated sheet has the hole of several upward and downward, and the front end face of described pleated sheet is several The hole of upward and downward, with between 43 liang of slotted holes of described rear casing under connect limit the hole of the several upward and downward of rear end face corresponding, described Pleated sheet connects the rear end face on limit by bolt and nut under being connected between 43 liang of slotted holes of described rear casing.

The first described latch hook member 45 by latch hook and latch hook spring and is constituted, and latch hook is the sliced pieces of an aluminium extruded type, latch hook Middle part is with a horizontal collar aperture, and the rear end of latch hook has a hook-type, latch hook front portion to have a vertical elongated hole, latch hook horizontal Collar aperture mutual with after the rearward end of described rear casing 43 opening upwards grooved both sides one to perforation corresponding, described in tow wheel 46 Tow axle penetrate rear end, described rear casing 43 grooved both sides mutual in perforation, the transverse holes of two rear ends, axle bed sheet bottom Neutralizing in the transverse holes of latch hook, a bolt penetrates in the elongated hole that latch hook is vertical, and penetrates in latch hook spring, then is screwed into described Connecting in the screwed hole of rear upward and downward on limit between 43 liang of slotted holes of rear casing, the latch hook of described first latch hook member 45 is at latch hook bullet The rectangular opening of the two-tube set of after-frame 5 second described in the effect lower energy hook lock of spring.

Shock-absorbing polyurethane block described in two is filled in two slotted holes of described rear casing 43 rear end, and shock-absorbing described in two is gathered Urethane block front end props up the pin being positioned at described 43 liang of slotted hole rear ends of rear casing, and two shock-absorbing polyurethane blocks are left back with described after-frame Two nylon plugs in breeches pipe and right back breeches pipe front end pore offset cooperation, can play shock-absorbing effect, and described tows wheel 46 by two PU takes turns and tows axle and constitutes, and the described axle that tows is made up of an axostylus axostyle, two bushing pipes and two stop nuts, and axostylus axostyle is the two of a round bar End has external screw thread, two liner sleeves is connected to the both ends of axostylus axostyle, then two PU take turns the two ends being socketed on axostylus axostyle, more locking by two Nut is fastened to the two ends of axostylus axostyle, and described PU wheel is the PU wheel of plastic wheel hub, and the centre of described PU wheel two sides respectively inlays one Deep groove ball bearing, is also lined with a lining ring between two deep groove ball bearings of described PU wheel, and described rear rack hook is made up of nylon Sheet component, the lower end of described rear rack hook is hook-type, and there are connecting hole, the upper end of described rear rack hook in the upper end of described rear rack hook It is connected by the left side of rivet with described twin beams pipe 41.

Described after-frame 5 is made up of left back breeches pipe, right back breeches pipe, the second two-tube set and heel brace, and left back breeches pipe is by flat tube system Becoming, U-shaped gap is flattened and had in left back breeches pipe rear end, and right back breeches pipe is made up of flat tube and bending stamping, the flat tube of right back breeches pipe Rear end rushes flat to the flat pipe hole the most corresponding with the metal flat bar of bending stamping, and bending stamping is that a metal flat bar is struck out two is straight The double-bending of the zigzag at angle, and have U-shaped gap in bending stamping rear end, after bending stamping close-fitting fills in right back breeches pipe flat tube End rushes in flat flat pipe hole, and with two rivets reinforcings, bending stamping is fixed on right back breeches pipe flat tube rear end and rushes flat flat In pore, the front end close-fitting of left back breeches pipe and right back breeches pipe is socketed in the second two-tube set, left back breeches pipe and right back breeches pipe front end Pore in be respectively plugged with a vexed plug of nylon, the shape and size of the second described two-tube set are identical with described first two-tube set 42, The centre in the second described two-tube upper even face, limit overlapped between two slotted holes has a rectangular opening, described second two-tube set Rectangular opening is the interlocking hole coordinated with described first latch hook member 45 latch hook, described second two-tube set mutual to being punched through lock Bolt is rotationally connected with the cross-perforating of described pleated sheet 45 rear end, connect described second two-tube set mutual to perforation and described The front axle of the cross-perforating of pleated sheet 45 rear end, described second two-tube set mutual to perforation in win to the right, front axle exists What described second two-tube set was mutual goes out end upper socket one bushing pipe to win to the right in perforation, and heel brace is connected in the middle part of left back breeches pipe Left side, after described after-frame 5 collapsed forward, the rearward end of left back breeches pipe can be connected to the left side, described twin beams pipe 41 leading section Described rear rack hook hook.

Described vehicle seat 6 includes that seat pipe 61, vehicle seat folded piece the 62, second latch hook member 63, seat bar 64, saddle 65 and folding are fixed Position card, in the pore of described seat pipe 61 lower end, close-fitting fills in a thick-walled tube, described seat pipe 61 bottom leading flank upper and lower The thick-walled tube filled in related with trailing flank upper, middle and lower respectively has a screwed hole, the upper end of described seat pipe 61 have one vertical Cracking, the upper end of described seat pipe 61 is socketed a pipe clamp, and described seat bar 64 is the pipe that upper bend is at a right angle, described seat bar In 64 pores penetrating described seat pipe 61 upper end, and tighten up cracking of described seat pipe 61 upper end with pipe clamp, by described seat bar 64 Fixing with described seat pipe 61, described saddle 64 is installed on the front end of described seat bar 64.

Described vehicle seat folded piece 62 is connected part, connecting rod and U-shaped plug and constitutes by diapsid, and it is an aluminium extruded type that diapsid connects part Sliced pieces, diapsid connects the upper end of part has a slotted hole, lower end to have a circular hole, and diapsid connects part and is positioned at the vertical of long collar aperture and has one Mutual to perforation, diapsid connects part and is positioned at above circular hole the hole having a longitudinal direction, and diapsid is connected the longitudinal hole of part and twisted by bolt Being connected on front side of described seat pipe 61 bottom in lower screwed hole, diapsid connects the circular hole of part by lock bolt and described rear casing 43 Mutual be rotationally connected perforation in front end, grooved both sides, connecting rod is made up of connecting rod bending part and two connecting rod lining rings, connecting rod bending part It is to be bent into front by a metal round rod to form with the rectangle frame of opening, the two leading sections bending still further below of rectangle frame, connecting rod The two ends of the inside bending of rectangle frame are all drilled with perforation, and connecting rod bending part penetrates in diapsid connects the slotted hole of part, and makes connecting rod The rearward end of bending part is positioned at the top that diapsid connects the slotted hole of part, and U-shaped plug fills in the lower section of the slotted hole of ring part, and position In the lower section of connecting rod bending part rearward end, U-shaped plug is a nylon plug, and the upper side of U-shaped plug has the bar footpath phase with connecting rod bending part Corresponding arc groove, U-shaped also have a longitudinally perforation beyond the Great Wall, and longitudinal direction perforation and the diapsid of U-shaped plug connects part and be positioned at long collar aperture and hang down Corresponding to mutual perforation, by screw, U-shaped plug is positioned in the long collar aperture that diapsid connects part, and diapsid is connected part Upper end and described seat pipe 61 bottom on front side of in screwed hole fix, the two ends of the inside bending in front end of connecting rod penetrate before described In the perforation laterally over of beam rear end, and the grooved gap above described front-axle beam rear end wins, by two connecting rod lining ring sets It is connected to the front end of connecting rod be positioned at above described front-axle beam rear end grooved gap is won on the two ends, and hammers into connecting rod square with two pins The perforation at shape frame inside bending two ends positions.

The second described latch hook member 63 is connected part, latch hook, latch hook spring and interlocking bolt and constitutes by grooved, and it is groove that grooved connects part The cut-out workpiece of the aluminium extruded type of type, grooved connects the left and right sides of part grooved and has one mutual to perforation, and grooved connects the end before part Face respectively have a hole, grooved connect on front side of the holes up and down of the front bottom surface of part and described seat pipe 61 bottom under two Screwed hole is corresponding, and grooved is connected part and is connected on front side of described seat pipe 61 bottom by two bolts, described second latch hook member 63 The shape of latch hook is similar with the latch hook of described first latch hook member 45, and the transverse holes of described second latch hook member 63 latch hook is by lock spiral shell Bolt connects mutual be connected perforation in part both sides with grooved, and interlocking bolt is the bolt of a cup head, and interlocking bolt is fastened to described Connect between 43 liang of slotted holes of rear casing limit front upper and lower to screwed hole in, a bolt penetrates described second latch hook member 63 latch hook Elongated hole in, and penetrate in latch hook spring, then be screwed on front side of described seat pipe 61 bottom in upper screwed hole, described second lock The latch hook of hook 63 can be with the cup head interlocking of interlocking bolt by the effect of interlocking spring, and described folding locator card is by U-shaped Nylon card and metal in flakes, have two connecting holes bottom U-shaped nylon card, and metal is respectively arranged with a hole about front portion in flakes, metal in flakes after Being respectively arranged with a hole about portion, the holes at metal rear portion in flakes is connected with two connecting holes bottom U-shaped nylon card by bolt and nut, gold Belong to anterior in flakes holes by connecting left and right on face, limit between bolt and nut, and described first 42 liang of slotted holes of two-tube set The hole of two upward and downwards connects.

Described front-wheel 71 is the wheel of 8 inches, and described front-wheel 71 is installed on front axle, and described trailing wheel 72 is 8 inches Wheel, described trailing wheel 72 is installed on left back breeches pipe and the rear end of right back breeches pipe, and described drive mechanism 8 of trampling up and down includes that two step on Rod member, axis, two crank axles, prime sprocket wheel, two pedals, prime minor sprocket, rear class sprocket wheel, flywheel, prime chain and rear class chain Bar, described treadle part is made up of double-round type component and treadle, and double-round type component is the slice processing part of aluminium extruded type, double-round type structure The front portion of part has a horizontal slotted hole, the rear end of double-round type component to have a horizontal circular hole, respectively opens before and after double-round type component Having a vertical hole, treadle is aluminum rod like parts, and there is a horizontal screwed hole front end of treadle, and the bottom side of in the middle part of treadle and rear end is each Having a screwed hole upwards, in the horizontal circular hole of double-round type component rear end, close-fitting is socketed a steel ring, the two of in the middle part of treadle and rear end Screwed hole upwards is connected with before and after double-round type component two vertical holes by two bolts, pedal and the horizontal thread of treadle front end Hole twist-on, is connected to the steel ring sleeve of the treadle part double-round type component rear end described in two two ends of locating shaft, and mixes with two bolts Two pads are fastened in the screwed hole at locating shaft two ends, and described axis is connected in described Five-way tube by axis accessory, Crank axle described in two is installed on the two ends of described axis, and described crank axle is made up of crank sheet, short axle and bearing, crank sheet Being that one end has square hole, the other end to have the parts of screwed hole, short axle to be fastened in the screwed hole of crank sheet, the inner hole sleeve of bearing is connected to On short axle, thus the crank axle described in being formed, crank axle described in two is connected to the two ends of described axis, and two institutes by square hole The two bearings stating crank axle is slidably connected in the slotted hole that treadle part described in two is horizontal, and described prime sprocket wheel is fixedly connected on On the right crank axle of crank axle described in two, the pedal described in two is connected on the crank axle described in two, described prime Minor sprocket and described rear class sprocket coaxiality cylinder connect, and connect described prime minor sprocket and the beam barrel of described rear class sprocket wheel, left end A bearing, axle are respectively inlayed in prime minor sprocket described in connection, the described rear class sprocket wheel described in right-hand member connection, and beam barrel two ends Cylinder be inconjunction with described prime minor sprocket and described rear class sprocket wheel, be socketed on connect described second two-tube set mutual to perforation With the front axle of the cross-perforating of described pleated sheet rear end, described second two-tube set mutual to perforation in win to the right go out end On, it being fastened in the screwed hole of front axle location with bolt, described flywheel is connected to the right side of described trailing wheel 72, described prime Chain is wire-wrapped on described prime sprocket wheel and described prime minor sprocket, and described rear class chain is wire-wrapped in described rear class chain On wheel and described flywheel.

Claims

1. the flexible portable bicycle driven by up-down pedal of handle type, including flexible handle, front fork stem, side arm, middle frame, after-frame, Vehicle seat, front-wheel, trailing wheel and trample drive mechanism up and down, is characterized in that: flexible handle include left hand handle, right handgrip, upper latch fitting, under Latch fitting and handle, left hand being to be formed as right-angle bending by the upper end of pipe with right handgrip, left hand handle and right handgrip right-angle bending Outside below place has screwed hole, and upper latch fitting is made up of upper clamping piece, banking stop and clamping screw, and the two ends, left and right of upper clamping piece are each Having the circular hole of a upward and downward, the circular hole of two upward and downwards of upper clamping piece is also connected with cracking of upward and downward, upper clamping piece upward and downward cracks Left and right rearward respectively has the screwed hole of a upward and downward, the screwed hole of left and right two upward and downward that upper clamping piece upward and downward cracks rearward Bottom pass through two bolt twist-on one banking stops, allow banking stop be connected to the bottom side of upper clamping piece, the centre of upper clamping piece have one with upper folder Part upward and downward cracks vertical longitudinal hole, and the rear end of upper clamping piece longitudinal hole connects the stop nut of a clamping screw, left hand handle and Right handgrip penetrates in the circular hole of two ends, upper clamping piece left and right upward and downward, and by left hand with right handgrip right-angle bending at below screw thread Hole corresponding to the bottom side of upper clamping piece, with two bolts be screwed into respectively left hand with right handgrip right-angle bending at below screwed hole In, by left hand spacing with what right handgrip and upper clamping piece work rotated, clamping screw penetrates in the longitudinal hole of upper clamping piece, and is screwed into In stop nut；Lower latch fitting is made up of lower clamping piece and clamping screw, and the two ends, left and right of lower clamping piece front portion are respectively arranged with the circle of a upward and downward Hole, the circular hole of two upward and downwards that lower clamping piece is anterior is connected with cracking of upward and downward, and the left end in the middle part of lower clamping piece has a upward and downward Circular hole, there is a circular hole of a upward and downward centre at lower clamping piece rear portion, the anterior centre of lower clamping piece have one with lower clamping piece front portion upward and downward Crack vertical longitudinal hole, and the rear end of lower clamping piece longitudinal hole connects the stop nut of a clamping screw, in the middle part of lower clamping piece on left end Lower to circular hole be connected with the upper end of front fork stem, front fork stem is made up of pipe, cylinder and front axle, fills in the bottom pore of pipe Cylinder, the bottom of pipe to and have a cross-perforating together with cylinder, front axle penetrates in the bottom of pipe and the cross-perforating of cylinder, And win to the right, left hand is in the circular hole penetrating two ends, lower clamping piece left and right upward and downward with right handgrip, and clamping screw penetrates lower clamping piece Longitudinal hole in, and be screwed in stop nut, handle is connected to left hand the top with right handgrip, and is positioned at the upper of upper clamping piece Side；Side arm is made up of rotary part and front-axle beam, and rotary part is installed on the upward and downward circular hole in the middle of lower clamping piece rear portion, front-axle beam Front end is grooved, and the both sides up and down of front-axle beam grooved have mutual to perforation, and the upper and lower of front-axle beam rear end is respectively arranged with a horizontal perforation, Front-axle beam grooved mutual to be punched through to lock bolt connect rotary part；Middle frame includes twin beams pipe, the first two-tube set, manages afterwards Set, Five-way tube, dead axle component, pleated sheet, the first latch hook member, two shock-absorbing polyurethane blocks, tow wheel and rear rack hook, twin beams pipe is by a left side Right two flat tubes are constituted, and the front end close-fitting of twin beams pipe is socketed the first two-tube set, and two slotted holes are arranged at the first two-tube set top, and first is two-tube Two slotted holes of set are corresponding with the cast of left and right two flat tube of twin beams pipe, and the groove that Open Side Down is arranged at the bottom of the first two-tube set Type, the both sides of the first two-tube set Open Side Down grooved have mutual to perforation, mutual right to being punched through of the first two-tube set Below lock bolt and front-axle beam rear end, horizontal perforation is rotationally connected, and two slotted holes are arranged at the bottom of rear casing, and the two of rear casing are oval Hole is corresponding with the cast of left and right two flat tube of twin beams pipe, and the grooved of opening upwards is arranged at the top of rear casing, rear casing opening to The front end of upper grooved both sides has one mutual to perforation, respectively has before and after the rearward end of rear casing opening upwards grooved both sides One is mutual to perforation, and rear casing is positioned at the most vertical leading section of two slotted holes and is inconjunction with twin beams pipe and has horizontal wearing Hole, is socketed Five-way tube, rear casing opening upwards grooved both sides in the cross-perforating in rear casing two slotted hole horizontal upright front portion The front mutual of rearward end connect dead axle components to being punched through two bolts, dead axle component is by locating shaft and two axle bed sheet structures Becoming, there is a cross-perforating rear end of pleated sheet, and pleated sheet is connected to the back lower place of rear casing by bolt and nut, tows dragging of wheel Row axle penetrates rear mutual the neutralizing perforation in dead axle component two axle bed sheet metapore of rear end, rear casing grooved both sides, and first In the latch hook transverse holes of latch hook member, being rotationally connected with rear casing by latch hook, the first latch hook member is made up of latch hook and latch hook spring, lock Hook front portion has an elongated hole, a bolt to penetrate in the elongated hole of the first latch hook member, and penetrates in latch hook spring, then is screwed into rear casing In the screwed hole of the rear of upper bottom land, two shock-absorbing polyurethane blocks are fixed in two slotted holes of rear casing rear end, tow wheel by Two PU take turns and tow axle and constitute, and two PU wheels are connected to tow the two ends of axle, and rear rack hook is connected to the left side of twin beams pipe；After-frame is by a left side Back breeches pipe, right back breeches pipe, the second two-tube set and heel brace are constituted, and it is two-tube that the front end close-fitting of left back breeches pipe and right back breeches pipe is socketed second Set, the shape and size of the second two-tube set are identical with the first two-tube set, the second two-tube set mutual to be punched through to lock bolt Being rotationally connected with the cross-perforating of pleated sheet rear end, heel brace is connected to the left side in the middle part of left back breeches pipe；Vehicle seat includes seat pipe, vehicle seat Folded piece, the second latch hook member, seat bar, saddle and folding locator card, vehicle seat folded piece is connected part, connecting rod and U-shaped plug by diapsid, double Pass connects part and is fastened to the front side of seat pipe lower end, diapsid connect the circular hole of part mutual with front end, rear casing grooved both sides to perforation Being rotationally connected, the rearward end of connecting rod connects the slotted hole of part and is connected with diapsid, and U-shaped plug is filled in the slotted hole of ring part, and position In the lower section in rod rear end portion, two front ends of connecting rod are connected with the perforation laterally over of front-axle beam rear end, the front side of seat pipe lower end Connecting has the grooved of the second latch hook member to connect part, and the latch hook of the second latch hook member connects mutual be connected perforation in part both sides with grooved, the Two latch hook member are connected part, latch hook, latch hook spring and interlocking bolt and constitute by grooved, and interlocking bolt is fastened on rear casing before bottom land In the screwed hole at position, the shape of the latch hook of the second latch hook member is similar to the latch hook of the first latch hook member, and a bolt penetrates the second lock In the elongated hole of hook, and penetrate in latch hook spring, then be screwed in seat pipe, the pore at seat pipe top connects, seat bar is pacified Dress saddle, folds locator card and is connected to the first two-tube set back upper place；Front-wheel is installed on front axle, and trailing wheel is installed on the rear end of after-frame, Trample drive mechanism up and down and include two treadle parts, two pedals, axis, two crank axles, prime sprocket wheel, prime minor sprocket, rear class chain Wheel, flywheel, prime chain and rear class chain, two treadle parts are socketed on the two ends of locating shaft, and central axis is connected in Five-way tube, Two crank axles are installed on the two ends of axis, and the bearing of two crank axles is slidably connected in the slotted hole of two treadle parts, prime sprocket wheel Being fixedly connected on the crank axle on the right of two crank axles, the crankshaft bearing of two crank axles is connected in two treadle part cast holes, front Level minor sprocket and rear class sprocket wheel are socketed on the win to the right to lock bolt of connection former piece and consequent and go out on end, and flywheel is connected to trailing wheel Right side, prime chain is wire-wrapped on prime sprocket wheel and prime minor sprocket, and rear class chain is wire-wrapped on rear class sprocket wheel and flywheel.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: described left hand handle and The screwed hole of described right handgrip corresponds respectively to the bottom side of described upper latch fitting upper clamping piece, described left hand handle and described right handgrip lower end After flank threads hole is screwed into bolt, can be as described left hand gliding on described lower latch fitting lower clamping piece with described right handgrip Dynamic is spacing, is connected to the described banking stop of described upper clamping piece bottom side, be connected to described left hand and described right handgrip on Two bolts coordinate, can be as spacing, after described upper clamping piece longitudinal hole when launching with described right handgrip of described left hand End be connected with a counterbore, the counterbore of described upper clamping piece is inlayed the stop nut of clamping screw described in, described clamping screw by Bolt and screw handle and be formed by connecting, described clamping screw also includes stop nut, and in the middle part of described lower clamping piece, left end is upper and lower Corresponding with the pipe footpath close-fitting of described front fork stem to circular hole, the upward and downward circular hole of left end and described front fork stem in the middle part of described lower clamping piece The upper end close-fitting socket of pipe, described handle is a working of plastics, and two lower ends of described handle are respectively connected with the circle of a upward and downward, institute State handle two circle collar aperture aperture and described left hand and the external diameter of described right handgrip corresponding, the top of described handle is one The handle of handle.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: described rotating part Part includes front axle tube, two zanjon bearings, a plane bearing and has a shock-absorbing polyurethane cylinder, each milling of upper and lower side of front axle tube pore Having the counterbore placing rotation zanjon bearing, front axle tube close-fitting from bottom to top is pressed into the upward and downward circular hole in the middle of described lower clamping piece rear portion In, two zanjon bearings are embedded in the counterbore of front axle tube upper and lower side respectively, and plane bearing is lining in the zanjon axle of described front axle tube upper end On holding, then shock-absorbing polyurethane cylinder is put on plane bearing, shock-absorbing polyurethane cylinder axially have a hole, and by two zanjons The endoporus of bearing, the axis hole of plane bearing and the hole of shock-absorbing polyurethane cylinder, corresponding to the upper and lower two sides of grooved, described front-axle beam front end Mutual to perforation, with to lock bolt, the grooved of described tumbler with described front-axle beam is connected, described front-axle beam is aluminium extruded type Slice processing part, the front end of described front-axle beam is grooved, the upper and lower of rear end is respectively arranged with a horizontal perforation, there is reinforcement at middle part, Centre above described front-axle beam rear end has a grooved gap, the grooved gap above described front-axle beam rear end and described front-axle beam rear end The cross-perforating of top is vertical to intersect, and the corner of described front-axle beam reinforcement is respectively arranged with a circular hole, and in described front-axle beam reinforcement corner Circular hole in tapping to become screwed hole, the both sides up and down of described front-axle beam grooved to have mutual to perforation, described front-axle beam grooved upper Lower both sides strike out fillet, and limit sheet is by the rectangular patch of plastic injection, and the corner of limit sheet rectangle is respectively arranged with a hole, limit sheet square The hole of shape corner is corresponding with the screwed hole of described front-axle beam reinforcement corner, and by bolt, both sides sheet is connected to described front-axle beam The right and left.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: described first two-tube Overlapping and be respectively arranged with an even limit up and down between two slotted holes, the two sides of described first two-tube set Open Side Down grooved strike out circle Angle, described rear casing is respectively arranged with an even limit between two slotted holes up and down, between described rear casing two slotted hole on connect limit Respectively have the screwed hole of a upward and downward, between described rear casing two slotted hole on connect the left and right of limit rearward end and respectively have one and erect Xiang Kong, between described rear casing two slotted hole, respectively to have one the most vertical to perforation, institute in the left and right of upper and lower two even leading sections, limit The hole having several upward and downward on the rear end face on limit, described rear casing two slotted hole rear end is connected under stating between rear casing two slotted hole Upper and lower sides respectively have one mutual to perforation, mutual each fixing to perforation of the upper and lower sides of described rear casing two slotted hole rear end One pin, the side at two ends, described Five-way tube left and right respectively have upward and downward mutual to wearing screwed hole, described Five-way tube close-fitting Penetrate in the cross-perforating in described rear casing two slotted hole horizontal upright front portion, and by side, two ends, described Five-way tube left and right two Upward and downward mutual to wearing screwed hole, the left and right corresponding between described rear casing two slotted hole upper and lower two even leading sections, limit is biphase The most vertical to perforation, with four bolts by the most perpendicular for the left and right two of between described rear casing two slotted hole upper and lower two even leading sections, limit To perforation, mutual with side, two ends two, described Five-way tube left and right upward and downward tighten fixing to wearing screwed hole, described folding Lamination is the sliced pieces of an aluminium extruded type, the front end face of described pleated sheet has the hole of several upward and downward, before described pleated sheet The hole of the several upward and downward of end face, with between described rear casing two slotted hole under connect limit the hole of the several upward and downward of rear end face relative Should.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: described rear casing is opened The rearward end of mouth upwards grooved both sides front mutual to be punched through two bolts connect described in dead axle component, described dead axle Component is made up of locating shaft and two axle bed sheets, and locating shaft is the axial axle with axial threaded hole at two ends, the middle part of locating shaft Close-fitting is socketed in the upper hole of two axle bed sheets, and axle bed sheet is the slice processing part of an aluminium extruded type, and the upper end of axle bed sheet has one with fixed The axis hole of position axle socket, the front end of axle bed sheet bottom has a horizontal screwed hole, the rear end of axle bed sheet bottom to have a transverse holes, axle Seat sheet bottom surface has a screwed hole upwards, two axle bed sheets to be connected to the middle part of locating shaft by shaft hole sleeve, and two axle bed sheet bottom surfaces are upwards Screwed hole be connected by connecting the vertical hole of two about the rearward end of limit between two bolts with described rear casing two slotted hole, two axles The seat horizontal screwed hole of sheet lower front part is by two bolts and the previous phase of described rear casing opening upwards grooved both sides rearward end Mutual connects perforation.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: described in tow wheel Tow axle penetrate rear end, described rear casing grooved both sides mutual in perforation, the transverse holes of two rear ends, axle bed sheet bottom neutralizes In the transverse holes of latch hook, a bolt penetrates in the elongated hole that latch hook is vertical, and penetrates in latch hook spring, then is screwed into described rear pipe Overlapping in the screwed hole of rear upward and downward connecting limit between two slotted holes, described to tow axle locking by an axostylus axostyle, two bushing pipes and two Nut is constituted, and axostylus axostyle is that the two ends of a round bar have external screw thread, and two liner sleeves are connected to the both ends of axostylus axostyle, described rear rack hook The sheet component being made up of nylon, the lower end of described rear rack hook is hook-type, and rivet and institute are passed through in the upper end of described rear rack hook State the twin beams pipe left side to connect.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: left back breeches pipe is by flat Pipe is made, and U-shaped gap is flattened and had in left back breeches pipe rear end, and right back breeches pipe is made up of flat tube and bending stamping, right back breeches pipe Flat tube rear end rushes flat to the flat pipe hole corresponding with the metal flat bar of bending stamping, and bending stamping is a metal flat bar to be struck out The double-bending of birectangular zigzag, and U-shaped gap is had in bending stamping rear end, it is flat that bending stamping close-fitting fills in right back breeches pipe Pipe rear end rushes in flat flat pipe hole, and reinforces with two rivets, bending stamping is fixed on right back breeches pipe flat tube rear end and rushes flat Flat pipe hole in, the centre in the described second two-tube upper even face, limit overlapped between two slotted holes has a rectangular opening, described The rectangular opening of the second two-tube set is the interlocking hole coordinated with described first latch hook member latch hook.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: under described seat pipe In the pore of end, close-fitting fills in a thick-walled tube, described seat pipe bottom leading flank up and down and trailing flank upper, middle and lower is related fills in Thick-walled tube respectively have a screwed hole, the upper end of described seat pipe has vertical cracking, the socket of the upper end of described seat pipe One pipe clamp, described seat bar is the pipe that upper bend is at a right angle, and diapsid connects the sliced pieces that part is an aluminium extruded type, and diapsid is even The upper end of part has a slotted hole, lower end to have a circular hole, and diapsid connects part and is positioned at long collar aperture vertical and has one mutual to perforation, double Pass connects part and is positioned at above circular hole the hole having a longitudinal direction, and diapsid connects the longitudinal hole of part and is fastened to described seat pipe lower end by bolt On front side of portion in lower screwed hole.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: connecting rod bending part is It is bent into front by a metal round rod to form with the rectangle frame of opening, the two leading sections bending still further below of rectangle frame, connecting rod square The two ends of the inside bending of shape frame are all drilled with perforation, and connecting rod bending part penetrates in diapsid connects the slotted hole of part, makes connecting rod bending The rearward end of part is positioned at the top that diapsid connects the slotted hole of part, and diapsid connects the upper end of part and described seat pipe bottom In Qian Ce, screwed hole is fixed, and the two ends of the inside bending in front end of connecting rod penetrate in the perforation laterally over of described front-axle beam rear end In, and the grooved gap above described front-axle beam rear end wins, the front end that two connecting rod lining rings are socketed on connecting rod is positioned at described Above front-axle beam rear end, grooved gap is won on the two ends, and hammer into the perforation at connecting rod rectangle frame inside bending two ends with two pins Middle location, described folding locator card by U-shaped nylon card and metal in flakes, the holes at metal rear portion in flakes by bolt and nut with Two connecting holes bottom U-shaped nylon card connect, and the holes of metal front portion in flakes is by bolt and nut, with described first two-tube set two The hole of two upward and downwards connecting the left and right on face, limit between slotted hole connects.

The flexible portable bicycle driven by up-down pedal of handle type the most according to claim 1, is characterized in that: described treadle Part is made up of double-round type component and treadle, and double-round type component is the slice processing part of aluminium extruded type, and the front portion of double-round type component has one Horizontal slotted hole, there is a horizontal circular hole rear end of double-round type component, respectively has a vertical hole before and after double-round type component, Treadle is aluminum rod like parts, and there is a horizontal screwed hole front end of treadle, and the bottom side of in the middle part of treadle and rear end is respectively arranged with a spiral shell upwards Pit, in the horizontal circular hole of double-round type component rear end, close-fitting is socketed a steel ring, the two of in the middle part of treadle and rear end screwed hole upwards Being connected with before and after double-round type component two vertical holes by two bolts, crank sheet is that one end has square hole, the other end to have screwed hole Parts, short axle is fastened in the screwed hole of crank sheet, and the inner hole sleeve of bearing is connected on short axle, and crank axle described in two is by square hole even It is connected to the two ends of described axis, and the two bearings of crank axle described in two is slidably connected to the slotted hole that treadle part described in two is horizontal In.