CN206012827U - Stretching handle folding portable bicycle - Google Patents

Abstract

A kind of stretching handle folding portable bicycle, including the handle that stretches, front fork stem, side arm, central sill, fork afterwards, vehicle seat, front-wheel, trailing wheel and drive mechanism, flexible handle connection front fork stem and side arm, flexible handle is by left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle are constituted, side arm is made up of rotary part and front even part, central sill is by beam pipe, front slotware and rear slotware are formed by connecting, fork is by wavy swan-neck afterwards, Five-way tube, front interior plug, interior plug and the secondary fork of ∩ shapes are formed by connecting afterwards, vehicle seat is by seat pipe, lock-connecting piece, connecting rod, saddle and folding location hook are formed by connecting, front-wheel is installed on front axle, trailing wheel is installed on rear fork, drive mechanism is by axis, two cranks, chain wheel, two pedals, flywheel and chain are constituted, and be connected in Five-way tube and trailing wheel on.

Description

Stretching handle folding portable bicycle

Technical field：

This utility model is related to a kind of folding portable bicycle, and more particularly to a kind of stretching handle folding portable is voluntarily Car.

Technical background：

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

Utility model content：

The purpose of this utility model is to provide for a kind of handlebar in the new type foldable mode of the handle type that stretches, and rear fork is related Trailing wheel collapsed forward, vehicle seat fold the mode with side arm folding linkage, the stretching handle that can be put into after having folded in knapsack Folding portable bicycle.The purpose of this utility model is realized in；Stretching handle folding portable bicycle, including flexible Handle, front fork stem, side arm, central sill, rear fork, vehicle seat, front-wheel, trailing wheel and drive mechanism, is characterized in that：Flexible handle includes a left side Handle, right handgrip, upper latch fitting, lower latch fitting and handle, left hand is being to be formed as right-angle bending by the upper end of pipe with right handgrip, left Handle with right handgrip right-angle bending below outside be provided with screwed hole, upper latch fitting is by upper clamping piece, banking stop and clamping screw structure It is the blank of an aluminium extruded type into, upper clamping piece, respectively there is a circular hole of a upward and downward at the left and right two ends of upper clamping piece, about the two of upper clamping piece To circular hole on be also connected with cracking for upward and downward, the left and right that upper clamping piece upward and downward cracks rearward is respectively provided with the screw thread of a upward and downward Hole, the bottom of the screwed hole of two upward and downward of left and right that upper clamping piece upward and downward cracks rearward are allowed by two bolt twist-ons, one banking stop Banking stop is connected to the bottom side of upper clamping piece, and the centre of upper clamping piece has one to crack vertical longitudinal hole with upper clamping piece upward and downward, upper folder The rear end of part longitudinal hole connects the stop nut of a clamping screw, and left hand handle and right handgrip penetrate upper clamping piece or so two ends upward and downward Circular hole in, and by left hand with right handgrip right-angle bending at below screwed hole corresponding to upper clamping piece bottom side, use two spiral shells Bolt be screwed into respectively left hand with right handgrip right-angle bending at below screwed hole in, left hand handle and right handgrip are revolved with upper clamping piece Turn spacing, also, be fastened to left hand with right handgrip on two bolts, match somebody with somebody with the banking stop of the bottom side for being connected to upper clamping piece Close, can be as left hand spacing when launching with right handgrip, clamping screw is penetrated in the longitudinal hole of upper clamping piece, and is screwed into locking In nut, tighten clamping screw and can tighten up cracking for upper clamping piece upward and downward, upper clamping piece is locked left hand handle and right handgrip so that be left Handle and fix with right handgrip and can not rotate；Lower latch fitting is made up of lower clamping piece and clamping screw, and lower clamping piece is cutting for an aluminium extruded type Broken piece, the anterior left and right two ends of lower clamping piece respectively have the circular hole of a upward and downward, are connected with the circular hole of two anterior upward and downwards of lower clamping piece Upward and downward cracks, and the left back end of lower clamping piece has the circular hole of a upward and downward, lower clamping piece rear end to the right to have the circular hole of a upward and downward, The anterior centre of lower clamping piece has one to crack vertical longitudinal hole with lower clamping piece front portion upward and downward, and the rear end of lower clamping piece longitudinal hole connects The stop nut of one clamping screw, in the middle part of lower clamping piece, the circular hole of left end upward and downward is connected with the upper end of front fork stem, and front fork stem is by justifying Pipe, cylinder and front axle are constituted, and fill in cylinder in the bottom pore of pipe, the bottom of pipe to and have one laterally to wear together with cylinder Hole, front axle are penetrated in the bottom of pipe and the cross-perforating of cylinder, and win to the right, and left hand handle and right handgrip penetrate a lower clamping piece left side In the circular hole of right two ends upward and downward, clamping screw is penetrated in the longitudinal hole of lower clamping piece, and is screwed in stop nut, tightens locking Bolt can tighten up cracking for lower clamping piece upward and downward, and lower clamping piece is locked left hand handle and right handgrip so that left hand handle and right handgrip are solid Determine and can not slide up and down, handle is connected to left hand the top with right handgrip, and the top positioned at upper clamping piece；Side arm is by rotating Part and front even part are constituted, and rotary part is installed on the upward and downward circular hole of lower clamping piece rear end to the right, and front even part is aluminium extruded type Slice processing part, the front end of front even part is in grooved, the both sides up and down of front even part grooved have mutual to perforation, front even part rear end Upper and lower respectively has a cross-perforating, front even part grooved mutual to being punched through to locking bolt connection rotary part；Central sill includes Liang Guan, front slotware and rear slotware, beam pipe are made up of chock in level metal rectangular pipe and two, tight in the pore of level metal rectangular pipe front and back end With filling in interior chock, interior chock is the part for respectively having a longitudinal threaded bore up and down, the interior chock in the pore of beam pipe front end By slotware before two bolt connections, front slotware is the grooved part being open forward, and the lower end of the front slotware left and right sides has mutual right Perforation, the interior chock that the left and right sides of level metal rectangular pipe rear end is inconjunction with the pore of beam pipe rear end are provided with one and horizontal wear Hole, the slotware after two bolt connections of the interior chock in the pore of level metal rectangular pipe rear end, rear slotware are open forward Grooved part, the front upper angle and bottom of the rear slotware left and right sides respectively have mutual to perforation, are connected to the rear slotware of beam pipe rear end, Its bottom mutual to perforation corresponding to beam pipe rear end cross-perforating, mutual right to being punched through in the front slotware left and right sides Lock bolt is rotated with the cross-perforating below front even part rear end and is connected；Afterwards fork by wavy swan-neck, Five-way tube, front interior plug, after The secondary fork of interior plug and ∩ shapes is constituted, and wavy swan-neck is the part bent by the middle part compacting corrugate of level metal rectangular pipe, wavy curved The left and right sides of curved tube front end is provided with a cross-perforating, and the left and right sides of wavy swan-neck rear end is provided with a mutual elongated hole, ripple A vertical hole is respectively provided with before and after the upper side of sigmoid pipe front portion, and Five-way tube is the cutting off processing part of Al squeezing material, in Five-way tube Laterally have the First Five-Year Plan rodding eye, Five-way tube in portion is respectively provided with a vertical perforation before and after Five-way tube hole, perpendicular before and after Five-way tube To the cooperation for being punched through two pairs of bolts nut, it is fixedly connected with the vertical hole before and after wavy swan-neck upper side, front interior plug is Nylon rectangular block of the middle part with cross-perforating, front chock off is matched somebody with somebody in the pore for filling in wavy swan-neck front end, and makes positioned at ripple Cross-perforating of the cross-perforating of plug corresponding to wavy swan-neck front end in the pore of sigmoid pipe front end, interior plug is with horizontal stroke afterwards To the part of the rectangular block shape of screwed hole, afterwards in the interior pore for filling in wavy swan-neck rear end, and the interior horizontal spiral shell that fills in after making , corresponding to the mutual elongated hole in wavy swan-neck rear end, the left side of the secondary fork of ∩ shapes is by rivet and wavy swan-neck rearward end for pit Right side riveting, the cooperation of the cross-perforating of wavy swan-neck front end by bolt and nut turned with the cross-perforating of central sill rear end Dynamic connection, rear fork can be folded to inferoanterior, and after wavy swan-neck and central sill expansion, be connected on wavy swan-neck five logical The leading flank of pipe leans against the trailing flank of slotware after central sill；Vehicle seat includes seat pipe, lock-connecting piece, connecting rod, saddle and folds location hook, seat Pipe by rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe constitute, rectangle seat pipe be by a rectangular tube upper end to the left lateral bend and A cross-perforating is respectively provided with up and down into, rectangle seat pipe lower end, the trailing flank of rectangle seat pipe lower end is provided with an elongated hole, rectangle seat pipe In the pore of upper end, close-fitting fills in plug member, and in the pore of rectangle seat pipe lower end, close-fitting fills in lower plug member, and makes lower plug member upper and lower Cross-perforating corresponding to the upper and lower cross-perforating in rectangle seat pipe lower end, under making lower plug member fluting backward corresponding to rectangle seat pipe The elongated hole of the rear side at end, circle saddle pipe are fixedly connected with upper plug member by two bolts, and the lower cross-perforating of seat pipe lower end passes through to lock Bolt is connected with mutual the rotating to perforation in upper angle before the rear slotware left and right sides, in the elongated hole of rectangle seat pipe lower end trailing flank with Be slidably connected in plug member fluting backward lock-connecting piece, lock-connecting piece can with the upper edge interlocking of rear slotware trailing flank, seat pipe lower end Upper cross-perforating rotates the rear end of connection connecting rod, and connecting rod is the portion for being pressed into right-angle bending by the rear and front end of a metal round steel Part, is respectively provided with a screwed hole at the two-end-point of right-angle bending before and after connecting rod, horizontal above the front end of connecting rod and front even part rear end Perforation rotates connection, and saddle is connected on round saddle pipe, folds the right flank that location hook is connected to beam pipe front end；Before front-wheel is installed on Axle, trailing wheel are installed on the interior plug of rear fork and the secondary fork of ∩ shapes, open lock-connecting piece, and by vehicle seat collapsed forward, in the work of connecting rod With under, vehicle seat is inconjunction with side arm, flexible handle, front fork stem and front-wheel and folds to the lower section of central sill together, reaches perfect folding Effect, and in the presence of location hook seat pipe is folded, vehicle seat, side arm, flexible handle, front fork stem and central sill are fixed on folding together Overlapping state；Drive mechanism includes that axis, two cranks, chain wheel, two pedals, flywheel and chain, central axis are connected in Five-way tube, Two cranks are installed on the two ends of axis, and chain wheel is fixedly connected on the crank on the right of two cranks, and flywheel is connected to the right side of trailing wheel, Chain is wire-wrapped on chain wheel and flywheel.

The beneficial effects of the utility model are：Ingenious cooperation of this utility model by profile piece so that whole vehicle frame is all Without electric welding, a kind of new trend of the manufacturing process of bicycle is represented；Handlebar of the present utility model is using flexible handle Form so that the folding of handlebar had reached both most simple, and reached most effective；Front fork stem is connected to the right-hand member in the middle part of lower clamping piece Upward and downward circular hole in, the upward and downward circular hole of lower clamping piece rear end to the right connection rotary part, central sill are located at position to the right so that Trailing wheel after folding can be located in the U-shaped opening that lower clamping piece connects between front fork stem and connection rotary part, make the sheet after folding Utility model has been accomplished ultimate attainmently compact；Front tumbler of the present utility model using side arm and is connected to lower clamping piece rear end to the right The cooperation of rotary part, includes plane bearing and shock-absorbing polyurethane cylinder in rotary part, make front tumbler both simple and have Imitate and also there is incabloc function；By the way of central sill connects front slotware and rear slotware using beam pipe, the front aperture of rear fork adopts spiral shell Bolt attaching nut connects the rear hole of central sill, and the Five-way tube of later fork is used as the fulcrum being abutted against so that of the present utility model Foldable structure has reached the simple of the limit；The lower cross-perforating of seat pipe lower end is rotated with rear slotware and is connected, the upper horizontal stroke of seat pipe lower end It is connected to perforation with the rear end thereof of connecting rod so that linkage structure has also been accomplished ultimate attainment simple.

Description of the drawings：

Fig. 1 is this utility model structural representation；

Fig. 2 is the expanded schematic diagram of the flexible handle of this utility model；

Fig. 3 is the gathering schematic diagram of the flexible handle of this utility model；

Fig. 4 is this utility model folding process schematic diagram；

Fig. 5 is that this utility model folding finishes figure；

In figure：1 flexible handle, 2 front fork stems, 3 side arms, 4 central sills, fork after 5,6 Vehicle seat, 71 front-wheels, 72 trailing wheels, 8 drive mechanisms；The handle 1 that wherein stretches also includes：11 left hand handles, 12 right handgrips, latch fitting on 13,14 times latch fittings, 15 handles；Vehicle seat 6 also includes：Vehicle seat 6 also includes： 61 seat pipes, 62 lock-connecting pieces, 63 connecting rods, 64 saddles, 66 fold location hook.

Specific embodiment：

According to Fig. 1, described stretching handle folding portable bicycle, including handle 1, front fork stem 2, the side arm 3, central sill of stretching 4th, rear fork 5, vehicle seat 6, front-wheel 71, trailing wheel 72 and drive mechanism system 8；

Described flexible handle 1 includes 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 the left hand is 11 and the right hand Outside below at 12 right-angle bendings is respectively provided with a screwed hole, the left hand is 11 and the screwed hole difference of the right handgrip 12 Corresponding to the bottom side of 13 upper clamping piece of upper latch fitting, with two bolts difference twist-on to the left hand straight to 11 and the right handgrip 12 At angular distortion in the screwed hole of lower outer, be connected to the left hand 11 and the right handgrip 12 bolt respectively be located at described The bottom side of 13 upper clamping piece of upper latch fitting, the left hand are respectively provided with a screwed hole the side of 11 and 12 lower end of the right handgrip, described Left hand is screwed into 11 and 12 lower end side screwed hole of the right handgrip after bolt, can be as described left hand 11 and the described right side Handle 12 spacing with what 14 lower clamping piece of lower latch fitting was slided up and down.

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 left and right two ends of the upper clamping piece respectively have the circular hole of a upward and downward, on the circular hole of two upward and downwards of the upper clamping piece also Cracking for upward and downward is connected with, respectively there are the circular hole of a upward and downward, the upper clamping piece in the left and right that the upper clamping piece upward and downward cracks rearward The left side that tapping is cracked rearward into screwed hole, the upper clamping piece upward and downward in the circular hole of two upward and downward of left and right that upward and downward cracks rearward The bottom of the screwed hole of right two upward and downwards allows described banking stop to be connected to described by the banking stop described in two bolt twist-ons one The bottom side of upper clamping piece, and crack rearward positioned at the upper clamping piece upward and downward, described banking stop is two ends portion with holes Part, is connected to the banking stop of the upper clamping piece bottom side, and is connected to the left hand two on 11 and the right handgrip 12 Bolt coordinates, and spacing when 11 and described right handgrip 12 can be launched as described left hand, the centre of the upper clamping piece has One is cracked vertical longitudinal hole with the upper clamping piece upward and downward, and the rear end of the upper clamping piece longitudinal hole is connected with a counterbore, described on The stop nut of clamping screw described in is inlayed in the counterbore of folder, is tightened described clamping screw and can be tightened 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 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, Respectively there is the circular hole of a upward and downward at the anterior left and right two ends of the lower clamping piece, on the circular hole of two anterior upward and downwards of the lower clamping piece also Cracking for upward and downward is connected with, the left back end of the lower clamping piece has the circular hole of a upward and downward, lower clamping piece rear end to the right to have one The circular hole of upward and downward, has opening U-shaped opening backward between the left back end of the lower clamping piece and right rear end, and the lower clamping piece is U-shaped The width of opening is corresponding with the width of the tire of trailing wheel, the upward and downward circular hole and the front fork stem 2 at the left back end of the lower clamping piece Pipe close-fitting corresponding, described front fork stem 2 is made up of pipe, cylinder and front axle, fills in cylinder in the bottom pore of pipe, circle The bottom of pipe to and have a cross-perforating, front axle to penetrate in the bottom of pipe and the cross-perforating of cylinder and win to the right together with cylinder Go out, the upper end close-fitting socket of the upward and downward circular hole at the left back end of the lower clamping piece and 2 pipe of the front fork stem, in the lower clamping piece Between have one to crack vertical longitudinal hole with lower clamping piece upward and downward, the rear end of the lower clamping piece longitudinal hole is connected with clamping screw described in Stop nut, described left hand penetrates 11 and described right handgrip 12 circular hole of described lower clamping piece or so two ends upward and downward In, described clamping screw is penetrated in the longitudinal hole of the lower clamping piece, and is screwed in stop nut, tightens the clamping screw Cracking for lower clamping piece upward and downward can be tightened up, by left hand described for described lower clamping piece locking 11 and described right handgrip 12, is made Obtain described left hand to fix 11 and described right handgrip 12 and can not slide up and down.

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

Described side arm 3 includes that rotary part and front even part, described rotary part include front axle tube, two zanjon axles Hold, a plane bearing and have a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore is respectively milled with the counterbore for placing zanjon bearing, front Close-fitting is pressed in the upward and downward circular hole of lower clamping piece rear end to the right central siphon from bottom to top, and two zanjon bearings are embedded in front axle respectively In the counterbore of pipe upper and lower side, plane bearing is lining on the zanjon bearing of the front axle tube upper end, then shock-absorbing polyurethane cylinder is put On plane bearing, there is a hole axial direction of shock-absorbing polyurethane cylinder, and by the endoporus of two zanjon bearings, the axis hole of plane bearing and keeps away The hole of shake polyurethane cylinder, corresponding to connect before described the upper and lower two sides of part front end grooved mutual to perforation, with will to locking bolt Described rotatable parts with described before connect the grooved of part and be connected, described before connect the slice processing part that part is aluminium extruded type, described before Even the front end of part in grooved, the upper and lower of rear end respectively have a horizontal perforation, described before connect the both sides up and down of part grooved and be provided with phase Mutual to perforation, described before connect the both sides up and down of part grooved and strike out fillet.

Described central sill 4 includes beam pipe, front slotware and rear slotware, and described beam pipe is by chock structure in level metal rectangular pipe and two Into in the pore of the front-end and back-end of level metal rectangular pipe, close-fitting fills in interior chock, and interior chock is by the square for respectively having a circular hole up and down The cutting off processing part of shape Al squeezing material, tapped in two circular holes up and down of interior chock, in the left and right sides of level metal rectangular pipe front end Face, the interior chock being inconjunction with the pore of level metal rectangular pipe front end are provided with two horizontal perforation, a left side for level metal rectangular pipe rear end The interior chock that right both sides are inconjunction with the pore of level metal rectangular pipe rear end is provided with a horizontal perforation, and described front slotware is Opening grooved part forward is struck out by sheet metal, the lower end of the front slotware left and right sides have mutual to perforation, described before After slotware, bottom surface respectively has a hole up and down, and after the front slotware, the upper lower opening of bottom surface by two bolts and is located at before level metal rectangular pipe Interior chock twist-on in end pipe hole is fixed, and described rear slotware is to strike out opening grooved part forward by sheet metal, described after The front upper angle of the slotware left and right sides and bottom respectively have mutual to perforation, and after the rear slotware, undersurface lower end portions respectively has up and down One hole, after the rear slotware, the upper lower opening of undersurface lower end portions is by two bolts and the interior plug being located in the pore of level metal rectangular pipe rear end Block twist-on is fixed, slotware after being connected to described in the rear end of level metal rectangular pipe, its bottom mutual to perforation corresponding to metal square The cross-perforating of shape pipe rear end, the front slotware left and right sides mutual to be punched through to lock bolt with described before connect part rear end The cross-perforating of lower section rotates connection.

Described rear fork 5 includes wavy described in wavy swan-neck, Five-way tube, afterwards front interior plug, interior plug and the secondary fork of ∩ shapes Swan-neck is by the part of the middle part compacting corrugate bending of level metal rectangular pipe, the left and right of the wavy swan-neck front-end and back-end Both sides are respectively provided with a cross-perforating, are respectively provided with a vertical hole before and after the wavy swan-neck front portion upper side, described wavy curved The left and right sides of curved tube rear end is provided with a mutual elongated hole, and the right flank at the wavy swan-neck rear portion has several riveted holes, institute The Five-way tube that states is the cutting off processing part of Al squeezing material, laterally has First Five-Year Plan rodding eye, the Five-way tube in the middle part of the Five-way tube Be located at Five-way tube hole before and after be respectively provided with a vertical perforation, be vertically punched through two pairs of bolts nut before and after the Five-way tube Coordinate, be fixedly connected with the vertical hole before and after wavy swan-neck upper side, described front interior plug is that middle part carries cross-perforating Nylon rectangular block, described front chock off are matched somebody with somebody in the pore for filling in the wavy swan-neck front end, and make the horizontal stroke of the front interior plug To the cross-perforating that bores a hole corresponding to the wavy swan-neck front end, described rear interior plug is the rectangular block with lateral threaded holes The part of shape, in the rear interior pore for filling in wavy swan-neck rear end, and corresponds to the lateral threaded holes of the rear interior plug In the mutual elongated hole in the wavy swan-neck rear end, the secondary fork of described ∩ shapes is made up of the bending of metal flat bar, the ∩ shapes pair The left side of fork has several riveted holes, the right rear end of the secondary fork of the ∩ shapes to be provided with U-shaped gap backward, a left side for the secondary fork of the ∩ shapes Right side of the end face by rivet with wavy swan-neck rear portion rivets, and the cross-perforating of the wavy swan-neck front end passes through bolt spiral shell Female cooperation, is rotated with the cross-perforating of the central sill rear end and is connected, the wavy swan-neck front end and the central sill rear end Junction is also lined with polyurethane pad, and described rear fork 5 to penetrate the bolt of the wavy swan-neck front end cross-perforating is Axle, folds to the inferoanterior of the central sill, after the wavy swan-neck is launched with the central sill, is fixed on the wavy swan-neck On the Five-way tube leading flank, as the fulcrum for leaning against slotware trailing flank after the central sill.

Described vehicle seat 6 includes seat pipe 61, lock-connecting piece 62, connecting rod 63, saddle 64 and folds location hook 65, described seat pipe 61 by rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe constitute, described rectangle seat pipe be by a rectangular tube upper end to the left Bending is formed, and the rectangle seat pipe lower end is respectively provided with a cross-perforating up and down, and the trailing flank of the rectangle seat pipe lower end is provided with One elongated hole, in the pore of the rectangle seat pipe upper end, close-fitting fills in described upper plug member, and described upper plug member is by respectively having in front and back The cutting off processing part of the rectangular aluminium section bar of one circular hole, tapped, the rectangle seat pipe in two circular holes before and after the plug member Upper end is inconjunction with described upper plug member and hits the person together pin reinforcing, and in the pore of the rectangle seat pipe lower end, close-fitting fills in lower plug Part, described lower plug member are that the trailing flank of the lower plug member has one backward by the part of the rectangular block shape of nylon injection-molding Fluting, the top that the lower plug member is slotted backward have a counterbore upwards, and the left and right sides of the lower plug member respectively has one up and down Cross-perforating, fill in the pore of the rectangle seat pipe lower end in from bottom to top by close-fitting for described lower plug member, and makes the lower plug The upper and lower cross-perforating of part makes lower plug member fluting backward right corresponding to the upper and lower cross-perforating in the rectangle seat pipe lower end The elongated hole of the rear side of rectangle seat pipe lower end described in Ying Yu, described round saddle pipe is processed by metal circular tube, the round saddle pipe Respectively be provided with before and after rear end a radial direction to perforation, two couple of the round saddle pipe rear end is punched through two bolts with the upper plug member Two screwed holes be fixedly connected, the lower cross-perforating of 61 lower end of the seat pipe passes through to locking bolt and the rear slotware left and right sides What front upper angle was mutual rotates connection to perforation, in the elongated hole of the rectangle seat pipe lower end trailing flank and the lower plug member opening backward Be slidably connected in groove described lock-connecting piece, and described lock-connecting piece 62 is made up of flat pin, dead bolt and spring, spring be put into described under In plug member fluting backward, and the upper end of spring is located in lower plug member counterbore upwards, then in the lower plug member backward Fluting in penetrate flat pin, the screwed hole for respectively having a longitudinal direction up and down in the middle part of flat pin, dead bolt is the metal parts of a bulk, Dead bolt shape of the lower end of dead bolt in door lock, the perforation for respectively having a longitudinal direction up and down of the upper end of dead bolt, the upper and lower perforation of dead bolt are led to Cross the two bolts screwed hole upper and lower with flat pin to be fixedly connected, dead bolt under the action of the spring can be with the rear slotware trailing flank Upper edge interlocking, the rear end of the connecting rod 63 are penetrated in the upper cross-perforating of the seat pipe lower end from left to right, and blending bolt is twisted It is connected in the screwed hole of 63 rear end of the connecting rod and positions, described connecting rod 63 is pressed into directly by the rear and front end of a metal round steel The part of angle bending, is respectively provided with a screwed hole, the front end of the connecting rod 63 at the two-end-point of right-angle bending before and after the connecting rod 63 Penetrated in the cross-perforating above front even part rear end from left to right, blending bolt is fastened to the screwed hole of 63 front end of the connecting rod Middle positioning, described saddle 64 are connected on described round saddle pipe, and described folding location hook 65 is by a sheet of spring steel Top rivet a hook-type nylon part, there is holes the bottom of the folding location hook, and the folding location hook 63 passes through two pairs Lock bolt is fixedly connected with two horizontal perforation of the beam pipe front end left and right side.

Described front-wheel 71 is 8 inches of wheel, and described front-wheel 71 is installed on described front axle, and described trailing wheel 72 is 10 inches of wheels, the left end of 72 wheel shaft of the trailing wheel is fastened in the lateral threaded holes of the interior plug, and tightens up institute with nut screw connection State the left end of 72 wheel shaft of trailing wheel, described interior plug is fixed with the wavy swan-neck rear end, the right-hand member of 72 wheel shaft of the trailing wheel In the U-shaped opening of the right rear end for being located at the secondary fork of the ∩ shapes, and the twist-on by two nuts, by the right-hand member of 72 wheel shaft of the trailing wheel Fix with the U-shaped opening of the right rear end of the secondary fork of the ∩ shapes.

Dead bolt pushed aside upwards, and by described 6 collapsed forward of vehicle seat, in the presence of the connecting rod 63, described vehicle seat 6 Described side arm 3, described flexible handle 1, described front fork stem 2 and described front-wheel 71 are inconjunction with together to the central sill 4 Lower section fold, and make in the U-shaped opening backward that described trailing wheel 72 is located between the left back end of lower clamping piece and right rear end so that This utility model after folding has been accomplished ultimate attainmently compact, reaches perfect folding effect, and in folding 65 hook of location hook In the presence of connecing the seat pipe 6, by described side arm 3, described flexible handle 1, described front fork stem 2 and described central sill 4 Folded state is fixed on together.

Described drive mechanism 8 includes that axis, two cranks, chain wheel, two pedals, flywheel and chain, described axis pass through Axis accessory is connected in the Five-way tube hole of described Five-way tube, and the crank described in two is installed on the two ends of the axis, described Chain wheel be fixedly connected on the right crank of crank described in two, the pedal described in two is connected on the crank described in two, Described flywheel is connected to the right side of the trailing wheel 72, and described chain is wire-wrapped on described chain wheel and described flywheel.

Claims (10)

1. a kind of stretching handle folding portable bicycle, including flexible handle, front fork stem, side arm, central sill, rear fork, vehicle seat, front Wheel, trailing wheel and drive mechanism, is characterized in that：Flexible handle includes left hand handle, right handgrip, upper latch fitting, lower 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 with right handgrip right-angle bending at below outside be provided with Screwed hole, upper latch fitting are made up of upper clamping piece, banking stop and clamping screw, and respectively there is the circle of a upward and downward at the left and right two ends of upper clamping piece Hole, is also connected with cracking for upward and downward, the left and right Ge Kai that upper clamping piece upward and downward cracks rearward on the circular hole of two upward and downwards of upper clamping piece The bottom for having the screwed hole of a upward and downward, the screwed hole of two upward and downward of left and right that upper clamping piece upward and downward cracks rearward passes through two bolts One banking stop of twist-on, allows banking stop to 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 Straight longitudinal hole, the rear end of upper clamping piece longitudinal hole connect the stop nut of a clamping screw, and left hand handle and right handgrip penetrate folder In the circular hole of part or so two ends upward and downward, and by left hand with right handgrip right-angle bending at below screwed hole correspond to upper clamping piece Bottom side, 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 the right side Handle with upper clamping piece make rotate spacing, clamping screw is penetrated in the longitudinal hole of upper clamping piece, and is screwed in stop nut, is tightened Clamping screw can tighten up cracking for upper clamping piece upward and downward；Lower latch fitting is made up of lower clamping piece and clamping screw, the anterior left side of lower clamping piece Respectively there is the circular hole of a upward and downward at right two ends, are connected with cracking for upward and downward, lower clamping piece on the circular hole of two anterior upward and downwards of lower clamping piece Left back end have the circular hole of a upward and downward, lower clamping piece rear end to the right to have the circular hole of a upward and downward, the anterior centre of lower clamping piece to have One is cracked vertical longitudinal hole with lower clamping piece front portion upward and downward, and the rear end of lower clamping piece longitudinal hole connects the locking spiral shell of a clamping screw Mother, in the middle part of lower clamping piece, the circular hole of left end upward and downward is connected with the upper end of front fork stem, and front fork stem is made up of pipe, cylinder and front axle, Fill in cylinder in the bottom pore of pipe, the bottom of pipe to and have a cross-perforating, front axle to penetrate the bottom of pipe together with cylinder In the cross-perforating of end and cylinder, and win to the right, left hand is the circular hole for penetrating lower clamping piece or so two ends upward and downward with right handgrip In, clamping screw is penetrated in the longitudinal hole of lower clamping piece, and is screwed in stop nut, is tightened clamping screw and can be tightened up on lower clamping piece Lower to crack, handle is connected to left hand the top with right handgrip, and the top positioned at upper clamping piece；Side arm by rotary part and Front even part is constituted, and rotary part is installed on the upward and downward circular hole of lower clamping piece rear end to the right, and the front end of front even part is in grooved, front company The upper and lower that there is mutual to perforation, front even part rear end the both sides up and down of part grooved respectively has a cross-perforating, front even part grooved phase Mutual to being punched through to locking bolt connection rotary part；Central sill includes beam pipe, front slotware and rear slotware, and beam pipe is by metal rectangular In pipe and two, chock is constituted, and in the pore of level metal rectangular pipe front and back end, close-fitting fills in interior chock, and interior chock is that respectively have one to indulge up and down To the part of screwed hole, by slotware before two bolt connections, front slotware is opening to the interior chock in the pore of beam pipe front end Grooved part forward, the lower end of the front slotware left and right sides has mutual to perforation, and the left and right sides of level metal rectangular pipe rear end is related The interior chock in the pore of beam pipe rear end and be provided with a horizontal perforation, in the pore of level metal rectangular pipe rear end in Chock slotware after two bolt connections, rear slotware are the grooved parts being open forward, and the front Shang Jiao of the rear slotware left and right sides is with End respectively has mutual to perforation, is connected to the rear slotware of beam pipe rear end, its bottom mutual to perforation corresponding to Liang Guanhou The cross-perforating at end, the front slotware left and right sides mutual to being punched through to locking bolt and the cross-perforating below front even part rear end Rotate connection；Afterwards fork by wavy swan-neck, Five-way tube, front interior plug, rear in plug and the secondary fork of ∩ shapes constitute, wavy swan-neck be by The part of the middle part compacting corrugate bending of level metal rectangular pipe, the left and right sides of wavy swan-neck front end are provided with a cross-perforating, The left and right sides of wavy swan-neck rear end is provided with a mutual elongated hole, is respectively provided with one and erects before and after the upper side of wavy swan-neck front portion Xiang Kong, laterally has a First Five-Year Plan rodding eye in the middle part of Five-way tube, Five-way tube be located at Five-way tube hole before and after be respectively provided with a vertical perforation, five Fix and connect in vertical hole before and after the cooperation for being vertically punched through two pairs of bolts nut before and after siphunculus, with wavy swan-neck upper side Connect, front interior plug is nylon rectangular block of the middle part with cross-perforating, front chock off with filling in the pore of wavy swan-neck front end, And the cross-perforating of plug in the pore of wavy swan-neck front end is made corresponding to the cross-perforating of wavy swan-neck front end, interior afterwards Plug is the part of the rectangular block shape with lateral threaded holes, afterwards in the interior pore for filling in wavy swan-neck rear end and interior after making , corresponding to the mutual elongated hole in wavy swan-neck rear end, the left side of the secondary fork of ∩ shapes is curved with wavy by rivet for the lateral threaded holes of plug The right side riveting of curved tube rearward end, the cooperation of the cross-perforating of wavy swan-neck front end by bolt and nut, with central sill rear end Cross-perforating rotates connection, after rear fork can be folded to inferoanterior, and wavy swan-neck is launched with central sill, is connected to wavy curved On curved tube, the leading flank of Five-way tube leans against the trailing flank of slotware after central sill；Vehicle seat includes seat pipe, lock-connecting piece, connecting rod, saddle and folding Folded location hook, seat pipe are made up of rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe, and rectangle seat pipe is by the upper end of a rectangular tube Lateral bend is formed to the left, and rectangle seat pipe lower end is respectively provided with a cross-perforating up and down, and the trailing flank of rectangle seat pipe lower end is provided with one Elongated hole, in the pore of rectangle seat pipe upper end, close-fitting fills in plug member, and in the pore of rectangle seat pipe lower end, close-fitting fills in lower plug member, and The cross-perforating for making lower plug member upper and lower makes lower plug member fluting backward corresponding corresponding to the upper and lower cross-perforating in rectangle seat pipe lower end In the elongated hole of the rear side of rectangle seat pipe lower end, circle saddle pipe is fixedly connected with upper plug member by two bolts, seat pipe lower end lower horizontal It is punched through being connected with mutual rotate perforation in upper angle before the rear slotware left and right sides to locking bolt, rectangle seat pipe lower end trailing flank Elongated hole in and lower plug member fluting backward in be slidably connected lock-connecting piece, lock-connecting piece can be locked with the upper edge of rear slotware trailing flank Connect, the upper cross-perforating of seat pipe lower end rotates the rear end of connection connecting rod, and connecting rod is pressed into by the rear and front end of a metal round steel The part of right-angle bending, is respectively provided with a screwed hole at the two-end-point of right-angle bending before and after connecting rod, the front end of connecting rod is connected after part with front The cross-perforating of end top rotates connection, and saddle is connected on round saddle pipe, folds the right flank that location hook is connected to beam pipe front end； Front-wheel is installed on front axle, and trailing wheel is installed on the interior plug of rear fork and the secondary fork of ∩ shapes；Drive mechanism includes axis, two cranks, tooth Disk, two pedals, flywheel and chain, central axis are connected in Five-way tube, and two cranks are installed on the two ends of axis, and chain wheel is fixed and connected It is connected on the crank on the right of two cranks, flywheel is connected to the right side of trailing wheel, chain is wire-wrapped on chain wheel and flywheel.

2. stretching handle folding portable bicycle according to claim 1, is characterized in that：The left hand handle and the right hand Screwed hole correspond respectively to the bottom side of the upper latch fitting upper clamping piece, the left hand handle and the right handgrip lower end side screw thread After hole is screwed into bolt, can be as described left hand the limit slided up and down with the lower latch fitting lower clamping piece with described right handgrip Position, be connected to the banking stop of the upper clamping piece bottom side, be connected to the left hand with the right handgrip on two bolts Coordinate, can be as described left hand spacing when launching with described right handgrip.

3. stretching handle folding portable bicycle according to claim 1, is characterized in that：After the upper clamping piece longitudinal hole End is connected with a counterbore, inlays the stop nut of clamping screw described in the counterbore of the upper clamping piece, described clamping screw by Bolt and screw handle and be formed by connecting, described clamping screw also includes stop nut, the left back end of the lower clamping piece and right rear end Between have opening U-shaped opening backward, the width of the lower clamping piece U-shaped opening is corresponding with the width of the tire of trailing wheel.

4. stretching handle folding portable bicycle according to claim 1, is characterized in that：The left back end of the lower clamping piece upper Lower corresponding with the pipe close-fitting of the front fork stem to circular hole, the upward and downward circular hole at the left back end of the lower clamping piece is justified with the front fork stem The upper end close-fitting socket of pipe, described handle is a working of plastics, and two lower ends of the handle are respectively connected with the circle of a upward and downward, described Corresponding with the external diameter of the right handgrip, the top of the handle is a drawing to aperture and the left hand of two circle collar aperture of handle The handle of handss.

5. stretching handle folding portable bicycle according to claim 1, is characterized in that：Described rotary part is included Front axle tube, two zanjon bearings, a plane bearing and there is a shock-absorbing polyurethane cylinder, it is deep that the upper and lower side of front axle tube pore is respectively milled with placement The counterbore of ditch bearing, close-fitting is pressed in the upward and downward circular hole of lower clamping piece rear end to the right front axle tube from bottom to top, two zanjon axles Hold and be embedded in the counterbore of front axle tube upper and lower side respectively, plane bearing is lining on the zanjon bearing of the front axle tube upper end, then will Shock-absorbing polyurethane cylinder is put on plane bearing, and there is a hole axial direction of shock-absorbing polyurethane cylinder, and by the endoporus of two zanjon bearings, The axis hole of plane bearing and the hole of shock-absorbing polyurethane cylinder, corresponding to connect before described the upper and lower two sides of part front end grooved mutual to wearing Hole, with to lock bolt by described rotatable parts with described before connect the grooved of part and be connected.

6. stretching handle folding portable bicycle according to claim 1, is characterized in that：Interior chock is by respectively having one up and down The cutting off processing part of the rectangular aluminium section bar of circular hole, tapped in two circular holes up and down of interior chock, bottom surface after the front slotware Respectively have a hole up and down, after the front slotware the upper lower opening of bottom surface by two bolts be located at level metal rectangular pipe front end pore in Interior chock twist-on is fixed.

7. stretching handle folding portable bicycle according to claim 1, is characterized in that：Bottom surface lower end after the rear slotware Portion respectively has a hole up and down, and after the rear slotware, the upper lower opening of undersurface lower end portions by two bolts and is located at level metal rectangular pipe rear end Interior chock twist-on in pore is fixed.

8. stretching handle folding portable bicycle according to claim 1, is characterized in that：Described upper plug member is by front and back Respectively there is the cutting off processing part of the rectangular aluminium section bar of a circular hole, tapped, the rectangle in two circular holes before and after the plug member Seat pipe upper end is inconjunction with described upper plug member and hits the person together pin reinforcing, and described lower plug member is by the square of nylon injection-molding The block part of shape, the trailing flank of the lower plug member have a fluting backward, the top that the lower plug member is slotted backward have one to On counterbore, the left and right sides of the lower plug member respectively has a cross-perforating up and down, and described round saddle pipe is added by metal circular tube Work is formed, the round saddle pipe rear end before and after be respectively provided with a radial direction to perforation.

9. stretching handle folding portable bicycle according to claim 1, is characterized in that：Described lock-connecting piece is by flat Pin, dead bolt and spring are constituted, and spring is put in lower plug member fluting backward, and the upper end of spring is located at the lower plug member In counterbore upwards, then penetrate flat pin in lower plug member fluting backward, in the middle part of flat pin respectively have up and down one longitudinal direction Screwed hole, dead bolt is the metal parts of a bulk, the dead bolt shape of the lower end of dead bolt in door lock, the upper end of dead bolt each up and down There is the perforation of a longitudinal direction, what dead bolt was upper and lower be punched through the two bolts screwed hole upper and lower with flat pin is fixedly connected, and dead bolt is in bullet In the presence of spring can with the upper edge interlocking of the rear slotware trailing flank,

10. stretching handle folding portable bicycle according to claim 1, is characterized in that：The rear end of the connecting rod is from a left side Penetrated in the upper cross-perforating of the seat pipe lower end to the right, blending bolt is fastened in the screwed hole of the rod rear end and positions, The front end of the connecting rod is penetrated in the cross-perforating above front even part rear end from left to right, and blending bolt is fastened to the connecting rod Position in the screwed hole of front end, described folding location hook is to rivet a hook-type nylon part by the top of a sheet of spring steel, The bottom for folding location hook has holes, the folding location hook to pass through two bolts and the two of the beam pipe front end right flank Horizontal screwed hole is fixedly connected.