CN106184559B

CN106184559B - Stretching handle portable bicycle

Info

Publication number: CN106184559B
Application number: CN201610701668.8A
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2016-08-22
Filing date: 2016-08-22
Publication date: 2018-11-20
Anticipated expiration: 2036-08-22
Also published as: CN106184559A

Abstract

A kind of stretching handle portable bicycle, including the handle that stretches, front fork stem, side arm, central sill, fork afterwards, vehicle seat, front-wheel, rear-wheel and driving mechanism, flexible handle connection front fork stem and side arm, handle stretch by left handgrip, right handgrip, upper latch fitting, lower latch fitting and knob are constituted, side arm is by rotary part and before connects part and constitutes, central sill is by beam pipe, preceding slotware, slotware and vehicle body folder are formed by connecting afterwards, fork is by wavy swan-neck afterwards, Five-way tube, interior chock, waveform pair fork and internal plug are formed by connecting, 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, rear-wheel is installed on rear fork, driving mechanism is by axis, two cranks, chain wheel, two pedals, flywheel and chain are constituted, and be connected in Five-way tube and rear-wheel on.

Description

Stretching handle portable bicycle

Technical field：

The present invention relates to a kind of folding portable bicycle, in particular to a kind of stretching handle portable bicycle.

Technical background：

Have several money folding bicycles currently on the market, although the folding bicycle for having folding rate fast, due to structure and The reasons such as construction, can not also reach the satisfaction being put into knapsack after folding.

Summary of the invention：

The invention aims to provide a kind of handlebar in a manner of the new type foldable for the handle type that stretches, the rear related rear-wheel of fork Collapsed forward, vehicle seat fold the mode with side arm folding linkage, can be put into knapsack after having folded --- and stretching handle is portable Formula bicycle.The object of the present invention is achieved like this；Stretching handle portable bicycle, including it is flexible handle, front fork stem, preceding Frame, central sill, rear fork, vehicle seat, front-wheel, rear-wheel and driving mechanism, it is characterized in that：Flexible handle include left handgrip, right handgrip, on Latch fitting, lower latch fitting and knob, left handgrip and right handgrip are to be formed by the upper end of round tube as right-angle bending, and left handgrip and right handgrip are straight Outside below at angular distortion is provided with threaded hole, and upper latch fitting is made of upper clamping piece, limit film and clamping screw, and upper clamping piece is an aluminium The blank for the type of squeezing, respectively there are the circular hole of a upward and downward in the left and right ends of upper clamping piece, also connect on the circular hole of two upward and downwards of upper clamping piece There is cracking for upward and downward, upper clamping piece upward and downward left and right rearward of cracking respectively is provided with the threaded hole of a upward and downward, upper clamping piece upward and downward The bottom end of the threaded hole of two upward and downward of left and right to crack rearward allows limit film to be connected to folder by two bolt twist-ons, one limit film The bottom side of part, the centre of upper clamping piece have one to crack vertical longitudinal hole with upper clamping piece upward and downward, and the rear end of upper clamping piece longitudinal hole connects The stop nut of a clamping screw is connect, left handgrip and right handgrip penetrate in the circular hole of upper clamping piece left and right ends upward and downward, and will be left Threaded hole below at hand handle and right handgrip right-angle bending corresponds to the bottom side of upper clamping piece, is screwed into left handgrip respectively with two bolts With at right handgrip right-angle bending below threaded hole in, left handgrip and right handgrip and upper clamping piece are made into the limit rotated, also, twist Two bolts being connected in left handgrip and right handgrip cooperate with the limit film of the bottom side that is connected to upper clamping piece, can as left handgrip with Limit when right handgrip is unfolded, clamping screw penetrates in the longitudinal hole of upper clamping piece, and is screwed into stop nut, tightens locking screw Bolt can tighten cracking for upper clamping piece upward and downward, upper clamping piece be locked left handgrip and right handgrip, so that left handgrip and right handgrip are fixed Without being able to rotate；Lower latch fitting is made of lower clamping piece and clamping screw, and lower clamping piece is the blank of an aluminium extruded type, lower clamping piece front Respectively there are the circular hole of a upward and downward in left and right ends, and cracking for upward and downward, lower folder are connected on the circular hole of two upward and downwards of lower clamping piece front Right end in the middle part of part has a circular hole of a upward and downward, and there is a circular hole of a upward and downward in lower clamping piece rear end to the right, in lower clamping piece front Between there is one to crack vertical longitudinal hole with lower clamping piece front upward and downward, the rear end of lower clamping piece longitudinal hole connects the anti-of a clamping screw Loose nut, the circular hole of the right end upward and downward in the middle part of lower clamping piece and the upper end of front fork stem connect, and front fork stem is by round tube, cylinder and front axle It constitutes, fills in cylinder in the bottom end pore of round tube, there is a cross-perforating in the bottom end of round tube to and together with cylinder, and front axle penetrates round tube Bottom end and cylinder cross-perforating in, and win to the left out, left handgrip and right handgrip penetrate lower clamping piece left and right ends upward and downward In circular hole, clamping screw is penetrated in the longitudinal hole of lower clamping piece, and is screwed into stop nut, and lower folder can be tightened by tightening clamping screw Part upward and downward cracks, and lower clamping piece is locked left handgrip and right handgrip, so that left handgrip and right handgrip are fixed and cannot be slided up and down Dynamic, knob is connected to the top of left handgrip and right handgrip, and is located at the top of upper clamping piece；Side arm is by rotary part and before connects part structure At rotary part is installed on the upward and downward circular hole of lower clamping piece rear end to the right, and preceding even part is the slice processing part of aluminium extruded type, preceding company The front end of part is in groove profile, and the two sides up and down of preceding even part groove profile have mutual to perforation, and the upper and lower of preceding even part rear end respectively has a cross To perforation, preceding even part groove profile it is mutual rotary part is bolted to lock to being punched through；Central sill include beam pipe, preceding slotware, after Slotware and vehicle body folder, beam pipe are made of chock in level metal rectangular pipe and two, close-fitting in the pore of level metal rectangular pipe front and back end Fill in interior chock, interior chock is the component for respectively having a longitudinal threaded bore up and down, in the pore of level metal rectangular pipe front end in Chock is bolted preceding slotware by two, and preceding slotware is opening groove profile part facing forward, and the lower end at left and right sides of preceding slotware has mutually To perforation, the interior chock being inconjunction in the pore of level metal rectangular pipe rear end at left and right sides of level metal rectangular pipe rear end is provided with One lateral perforation, vehicle body folder is made of leaf after folding frontal lobe, folding and folding lock, positioned at level metal rectangular pipe rear end Interior chock in pore is bolted by two folds frontal lobe and rear slotware, and rear slotware is opening groove profile part facing forward, rear slotware The preceding upper angle of the left and right sides and lower end respectively have it is mutual the rear slotware of beam pipe rear end is connected to perforation, lower end is mutual The cross-perforating for corresponding to beam pipe rear end to perforation, it is mutual to being punched through to lock bolt and before connect at left and right sides of preceding slotware Cross-perforating rotation connection below part rear end；Fork is by wavy swan-neck, Five-way tube, interior chock, waveform pair fork and internal plug afterwards It constitutes, wavy swan-neck is to suppress the curved component of corrugate, the left and right of wavy swan-neck rear end by the middle part of level metal rectangular pipe Two sides are provided with a mutual long hole, and the front and back in wavy swan-neck underside of forward face is respectively provided with a vertical hole, and Five-way tube is aluminium extruded type The cutting off processing part of material, the transverse direction in the middle part of Five-way tube have First Five-Year Plan rodding eye, and the front and back that Five-way tube is located at Five-way tube hole is respectively provided with one It is vertical to perforate, the cooperation for being vertically punched through two pairs of bolts nut before and after Five-way tube, before and after wavy swan-neck downside Vertical hole is fixedly connected, and the front end face of waveform pair fork is riveted by the left side of rivet and wavy swan-neck front end, and internal plug is band There is the component of the rectangular block shape of lateral threaded holes, internal plug is filled in the pore of wavy swan-neck rear end, and makes the lateral spiral shell of internal plug Pit corresponds to the mutual long hole in wavy swan-neck rear end, and leaf passes through in two bolts and wavy swan-neck front end pore after folding Interior chock twist-on is fixed, and leaf is by folding lock and being connected to leaf after folding to lock bolt and folding frontal lobe rotation connection after folding On, fold lock can with fold frontal lobe interlocking, when folding, leaf is inconjunction with rear fork front folds to the left after folding；Vehicle seat includes Seat pipe, lock-connecting piece, connecting rod, saddle and folding location hook, seat pipe are made of rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe, square Shape seat pipe is that lateral bend forms to the left by the upper end of a rectangular tube, and rectangle seat pipe lower end is respectively provided with a cross-perforating, square up and down The trailing flank of shape seat pipe lower end is provided with a long hole, and close-fitting fills in plug member, rectangle seat pipe lower end in the pore of rectangle seat pipe upper end Pore in close-fitting fill in lower plug member, and make lower plug member or more cross-perforating correspond to rectangle seat pipe lower end above and below transverse direction wear Hole, makes the fluting of lower plug member backward correspond to the long hole of the rear side of rectangle seat pipe lower end, and circle saddle pipe passes through two bolts and upper plug member It is fixedly connected, the lower cross-perforating of seat pipe lower end is by turning perforation to upper angle before lock bolt and the rear slotware left and right sides is mutual Dynamic connection, the long hole of rectangle seat pipe lower end trailing flank neutralize the lock-connecting piece that is slidably connected in the lower fluting of plug member backward, lock-connecting piece energy With the upper edge interlocking of rear slotware trailing flank, the rear end of the upper cross-perforating rotation connection connecting rod of seat pipe lower end, connecting rod is by one The rear and front end of metal round steel is pressed into the component of right-angle bending, is respectively provided with a screw thread at the two-end-point of right-angle bending before and after connecting rod Hole, the front end of connecting rod are rotatablely connected with the cross-perforating before connected above part rear end, and saddle is connected on round saddle pipe, folds location hook It is connected to the right side of beam pipe front end；Front-wheel is installed on front axle, and rear-wheel is installed in the internal plug and waveform pair fork of rear fork, opens Lock-connecting piece, and by vehicle seat collapsed forward, under the action of connecting rod, vehicle seat is inconjunction with side arm, flexible handle, front fork stem and front-wheel one Rise to the lower section of central sill fold, reach perfect folding effect, and under the action of folding location hook seat pipe, by vehicle seat, side arm, Flexible handle, front fork stem and central sill are fixed on folded state together；Driving mechanism include axis, two cranks, chain wheel, two pedals, Flywheel and chain, central axis are connected in Five-way tube, and two cranks are installed on the both ends of axis, and chain wheel is fixedly connected on two cranks On the crank on the right, flywheel is connected to the right side of rear-wheel, and chain is wire-wrapped on chain wheel and flywheel.

The beneficial effects of the invention are as follows：The present invention passes through the ingenious cooperation of profile piece, so that entire vehicle frame is not all welded Welding, represents a kind of new trend of the manufacturing process of bicycle；Handlebar of the invention uses the form of flexible handle, so that vehicle Folding reached both most simple, and reach most effective；Front fork stem is connected to the upward and downward circular hole of the right end in the middle part of lower clamping piece In, the upward and downward circular hole of lower clamping piece rear end to the right connects rotary part, and central sill is located at position to the right, so that folded rear-wheel The folded present invention can be made to have accomplished ultimate attainmently small and exquisite between saddle and the angle of left handgrip；Preceding rotation of the invention Part uses the cooperation of side arm and the rotary part for being connected to lower clamping piece rear end to the right, includes plane bearing and shock-absorbing in rotary part Polyurethane cylinder, rotating member is both simple before allowing and effectively and also has incabloc function；Vehicle body folder uses and is connected to central sill The position to the left with rear fork, so that rear-wheel can be parallel with front-wheel after the rear related rear-wheel of fork is folded to left front；Under seat pipe The lower cross-perforating and rear slotware at end are rotatablely connected, and the upper cross-perforating of seat pipe lower end and the rear end thereof of connecting rod connect, so that Linkage structure has also been accomplished ultimate attainment simple.

Detailed description of the invention：

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the expanded schematic diagram of the flexible handle of the present invention；

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

Fig. 4 is the structural schematic diagram of front-axle beam of the present invention and both sides piece；

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

Fig. 6 is that present invention folding finishes figure；

In figure：1 --- flexible handle, 2 --- front fork stem, 3 --- side arm, 4 --- central sill, 5 --- rear fork, 6 --- Vehicle seat, 71 --- front-wheel, 72 --- rear-wheel, 8 --- driving mechanism；Wherein flexible handle 1 further includes：11 --- left handgrip, 12 --- right handgrip, 13 --- upper latch fitting, 14 --- lower latch fitting, 15 --- knob；Vehicle seat 6 further includes：Vehicle seat 6 further includes： 61 --- seat pipe, 62 --- lock-connecting piece, 63 --- connecting rod, 64 --- saddle, 65 --- fold location hook.

Specific embodiment：

According to Fig. 1, the stretching handle portable bicycle, including flexible handle 1, front fork stem 2, side arm 3, central sill 4, after Fork 5, vehicle seat 6, front-wheel 71, rear-wheel 72 and driving mechanism system 8；

The flexible handle 1 includes left handgrip 11, right handgrip 12, upper latch fitting 13, lower latch fitting 14 and knob 15, described Left handgrip 11 and the right handgrip 12 are all to be formed by the upper end of round tube as right-angle bending, the left handgrip 11 and the right hand Outside below at 12 right-angle bendings is respectively provided with a threaded hole, the threaded hole difference of the left handgrip 11 and the right handgrip 12 Corresponding to the bottom side of upper 13 upper clamping piece of latch fitting, it is straight to the left handgrip 11 and the right handgrip 12 that twist-on is distinguished with two bolts At angular distortion in the threaded hole of lower outer, be connected to the left handgrip 11 and the right handgrip 12 bolt be located at it is described The side of the bottom side of upper 13 upper clamping piece of latch fitting, 12 lower end of the left handgrip 11 and the right handgrip is respectively provided with a threaded hole, described It, can be as the left handgrip 11 and the right side after left handgrip 11 and 12 lower end side threaded hole of the right handgrip are screwed into bolt The limit that hand handle 12 and lower 14 lower clamping piece of latch fitting slide up and down.

The upper latch fitting 13 is made of upper clamping piece, limit film and clamping screw, and the upper clamping piece is an aluminium extruded type Respectively there are the circular hole of a upward and downward in blank, the left and right ends of the upper clamping piece, go back on the circular hole of two upward and downwards of the upper clamping piece It is connected with cracking for upward and downward, respectively there are the circular hole of a upward and downward, the upper clamping piece in upper clamping piece upward and downward left and right rearward of cracking Upward and downward crack two upward and downward of left and right rearward circular hole in tapping at threaded hole, the upper clamping piece upward and downward cracks a left side rearward The bottom end of the threaded hole of right two upward and downwards allows the limit film to be connected to described by limit film described in two bolt twist-ons one The bottom side of upper clamping piece, and be located at the upper clamping piece upward and downward and crack rearward, the limit film is both ends portion with holes Part is connected to the limit film of the upper clamping piece bottom side, be connected in the left handgrip 11 and the right handgrip 12 two Bolt cooperation, limit when can be unfolded as the left handgrip 11 and the right handgrip 12, the centre of the upper clamping piece has One cracks 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, it is described on The stop nut that a clamping screw is inlayed in the counterbore of folder, upper clamping piece upward and downward can be tightened by tightening the clamping screw Crack, upper clamping piece is locked into left handgrip and right handgrip so that left handgrip and right handgrip are fixed without being able to rotate, the locking Bolt is by bolt and screws handle and is formed by connecting, and the clamping screw further includes having stop nut.

The lower latch fitting 14 is made of lower clamping piece and clamping screw, and the lower clamping piece is the blank of an aluminium extruded type, Respectively there are the circular hole of a upward and downward in the left and right ends of the lower clamping piece front, go back on the circular hole of two upward and downwards of the lower clamping piece front It is connected with cracking for upward and downward, the right end in the middle part of the lower clamping piece has the circular hole of a upward and downward, and lower clamping piece rear end to the right has The upward and downward circular hole of the circular hole of one upward and downward, lower clamping piece middle part right end is corresponding with the round tube close-fitting of the front fork stem 2, described Front fork stem 2 be made of round tube, cylinder and front axle, fill in cylinder in the bottom end pore of round tube, the bottom end of round tube is to and together with circle Column has a cross-perforating, and front axle is penetrated in the bottom end of round tube and the cross-perforating of cylinder and won to the left out, in the middle part of the lower clamping piece The upper end close-fitting of the upward and downward circular hole of right end and 2 round tube of front fork stem is socketed, and is had on one and lower clamping piece among the lower clamping piece It is lower to the vertical longitudinal hole that cracks, the rear end of the lower clamping piece longitudinal hole is connected with the stop nut of a clamping screw, described Left handgrip 11 and the right handgrip 12 penetrate in the circular hole of lower clamping piece left and right ends upward and downward, the clamping screw It penetrates in the longitudinal hole of the lower clamping piece, and is screwed into stop nut, lower clamping piece or more can be tightened by tightening the clamping screw To crack, by the described lower clamping piece locking left handgrip 11 and the right handgrip 12, so that the left handgrip 11 It fixes and cannot slide up and down with the right handgrip 12.

The knob 15 is a plastic part, and two lower ends of the knob 15 are respectively connected with the circle of a upward and downward, the knob The aperture of 15 two circle collar aperture is corresponding with the outer diameter of the left handgrip 11 and the right handgrip 12, and the top of the knob 15 is Two collar aperture of the handle of one knob, the knob 15 are socketed on respectively under 12 knee of the left handgrip 11 and the right handgrip Side, the knob 15 are located at the top of the upper clamping piece.

The side arm 3 is by rotary part and before connects part and constitutes, and the rotary part includes front axle tube, two zanjon axis It holds, 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, preceding Close-fitting is pressed into 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, the axial direction of shock-absorbing polyurethane cylinder has a hole, and by the inner hole of two zanjon bearings, plane bearing axis hole and keep away The hole for shaking polyurethane cylinder, corresponding to connect before described part front end groove profile or more two sides it is mutual to perforation, with will to lock bolt The rotatable parts with it is described before connect the groove profile of part and connect, the slice processing part that part is aluminium extruded type is connected before described, before described Even the front end of part respectively has a lateral perforation, middle part to have reinforcing rib in the upper and lower of groove profile, rear end, and part reinforcing rib is connected before described Respectively there is a circular hole in quadrangle, and tapping connects part groove profile at threaded hole in the circular hole for connecting part reinforcing rib quadrangle before described before described Two sides are provided with mutual to perforation up and down, and the two sides up and down that part groove profile is connected before described strike out fillet, connect part before described and also wrap Both sides piece is included, side piece is the rectangular patch as made of plastic injection, and respectively there is a hole in the quadrangle of side piece rectangle, side piece rectangle quadrangle Hole with it is described before connect that the threaded hole of part reinforcing rib quadrangle is corresponding, and by bolt by both sides piece be connected to it is described before connect the left side of part Right both sides.

The central sill 4 includes beam pipe, preceding slotware, rear slotware and vehicle body folder, and the beam pipe is by level metal rectangular pipe With two in chock constitute, close-fitting fills in interior chock in the pore of level metal rectangular pipe front-end and back-end, and interior chock is by respectively having up and down The cutting off processing part of the rectangular aluminium profile of one circular hole, it is tapped in two circular holes up and down of interior chock, before level metal rectangular pipe The left and right side at end is inconjunction with the interior chock in the pore of level metal rectangular pipe front end and is provided with two lateral perforation, metal rectangular It is inconjunction with the interior chock in the pore of level metal rectangular pipe rear end at left and right sides of pipe rear end and is provided with a lateral perforation, it is described Preceding slotware be that the groove profile part facing forward of being open is struck out by sheet metal, the lower end at left and right sides of the preceding slotware has mutual to wearing Hole, bottom surface respectively has a hole up and down after the preceding slotware, after the preceding slotware the upper lower opening of bottom surface by two bolts be located at gold The interior chock twist-on belonged in the pore of rectangular tube front end is fixed, and the rear slotware is that the groove profile facing forward that is open is struck out by sheet metal Part, it is described after preceding upper angle at left and right sides of slotware and lower end respectively have it is mutual to perforation, it is described after undersurface lower end portions after slotware Respectively have a hole up and down, the vehicle body folder is by leaf after folding frontal lobe, folding and folds lock and constitutes, the folding frontal lobe Respectively there is a hole in position to the right up and down, the upper lower opening for folding frontal lobe and it is described after the upper lower opening of undersurface lower end portions after slotware, And the threaded hole up and down of interior chock is corresponding, respectively penetrates the upper lower opening for folding frontal lobe with two bolts and neutralizes the rear slotware Afterwards in the upper lower opening of undersurface lower end portions, and in the threaded hole up and down for the interior chock being fastened in the pore of level metal rectangular pipe rear end It is fixed, be connected to beam pipe rear end it is described after slotware, lower end it is mutual to be punched through will be described to lock bolt Slotware and the beam pipe are reinforced afterwards, at left and right sides of the preceding slotware it is mutual to be punched through to lock bolt and it is described before connect part Cross-perforating rotation connection below rear end.

The rear fork 5 includes wavy swan-neck, Five-way tube, interior chock, waveform pair fork and internal plug, and described is wavy curved Curved tube is to suppress the curved component of corrugate by the middle part of level metal rectangular pipe, is provided at left and right sides of the wavy swan-neck rear end One mutual long hole, the front and back in the wavy swan-neck underside of forward face are respectively provided with a vertical hole, the wavy swan-neck rear portion Left side have several riveted holes, the Five-way tube is the cutting off processing part of Al squeezing material, the transverse direction in the middle part of the Five-way tube There is First Five-Year Plan rodding eye, the front and back that the Five-way tube is located at Five-way tube hole is respectively provided with a vertical perforation, perpendicular before and after the 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 downside, described is interior Chock close-fitting is filled in the pore of the wavy swan-neck front end, and the transverse direction in the front end of the wavy swan-neck, which is inconjunction with, to be located at Interior chock in the wavy swan-neck front end pore squeezes into pin and reinforces positioning, and the waveform pair fork is curved by metal flat bar Song is made, and the front end face of the waveform pair fork has several riveted holes, and the right rear end of the waveform pair fork is provided with U-shaped backward and opens Mouthful, the front end face of the waveform pair fork is riveted by the left side of rivet and wavy swan-neck front, and the internal plug is with cross To the component of the rectangular block shape of threaded hole, the internal plug is filled in the pore of wavy swan-neck rear end, and makes the cross of the internal plug Correspond to the mutual long hole in the wavy swan-neck rear end to threaded hole, leaf position to the right respectively has one up and down after the folding Hole, the upper lower opening of leaf respectively passes through the upper and lower of interior chock described in a bolt and the wavy swan-neck front end pore after the folding Threaded hole twist-on is fixed, and there is vertical collar aperture on the left side of leaf after the folding, and vertically having for the folding frontal lobe left side is mutual To perforation, the vertical collar aperture of leaf is by connecting vertical mutual rotate to perforation of lock bolt and the folding frontal lobe after the folding It connects, the folding lock is rotationally connected with the right of leaf after the folding, and the folding lock can be with the folding frontal lobe The right interlocking, the rear fork 5 for being connected to leaf after the folding can fold to central sill left front.

The vehicle seat 6 includes seat pipe 61, lock-connecting piece 62, connecting rod 63, saddle 64 and folds location hook 65, the seat pipe 61 by rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe constitute, the rectangle seat pipe be by a rectangular tube upper end to the left It is bent, 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 long hole, close-fitting fills in the upper plug member in the pore of rectangle seat pipe upper end, and the upper plug member is that respectively had by front and back The cutting off processing part of the rectangular aluminium profile of one circular hole, tapped, the rectangle seat pipe in two circular hole of front and back of the plug member Upper end is inconjunction with the upper plug member and hits the person together pin reinforcing, and close-fitting fills in lower plug in the pore of rectangle seat pipe lower end Part, the lower plug member be the component of the rectangular block shape as made of nylon injection-molding, and the trailing flank of the lower plug member has one backward There are a upward counterbore in fluting, the top that the lower plug member is slotted backward, and the left and right sides of the lower plug member respectively has one up and down Cross-perforating, the lower plug member from bottom to top fill in the pore of rectangle seat pipe lower end by close-fitting, and makes the lower plug Cross-perforating above and below part corresponds to the cross-perforating of rectangle seat pipe lower end or more, makes the fluting pair of the lower plug member backward The long hole of the rear side of rectangle seat pipe lower end described in Ying Yu, the circle saddle pipe is process by metal circular tube, the round saddle pipe The front and back of rear end is respectively provided with one radial to perforation, and two pairs of the round saddle pipe rear end are punched through two bolts and the upper plug member Two threaded holes be fixedly connected, the lower cross-perforating of 61 lower end of seat pipe pass through to lock bolt and it is described after at left and right sides of slotware Preceding upper angle is mutual to be rotatablely connected perforation, and the long hole of rectangle seat pipe lower end trailing flank neutralizes the lower plug member opening backward Be slidably connected the lock-connecting piece in slot, and the lock-connecting piece 62 is made of flat pin, lock tongue and spring, spring be put into it is described under In the fluting of plug member backward, and the upper end of spring is located in the upward counterbore of the lower plug member, then the lower plug member backward Fluting in penetrate flat pin, respectively have a longitudinal threaded hole up and down in the middle part of flat pin, lock tongue is a block-like metal parts, The lower end of lock tongue is in the lock tongue shape of door lock, and respectively there is a longitudinal perforation in the upper end of lock tongue up and down, and the perforation above and below lock tongue is logical It crosses two bolts to be fixedly connected with the threaded hole above and below flat pin, lock tongue 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 from left to right in the upper cross-perforating of 61 lower end of seat pipe, blending bolt It is fastened in the threaded hole of 63 rear end of connecting rod and positions, the connecting rod 63 is pressed by the rear and front end of a metal round steel The component of right-angle bending, is respectively provided with a threaded hole at the two-end-point of the 63 front and back right-angle bending of connecting rod, before the connecting rod 63 End is penetrated from left to right in the cross-perforating above preceding even part rear end, and blending bolt is fastened to the screw thread of 63 front end of connecting rod It is positioned in hole, the saddle 64 is connected on the circle saddle pipe, and the folding location hook 65 is by a sheet of spring The top of steel rivets a hook-type nylon part, the lower end hole You Liang for folding location hook 65, and the folding location hook 65 passes through Two pairs of lock bolts are fixedly connected with two lateral perforation of beam pipe front end left and right side.

The front-wheel 71 is 10 inches of wheel, and the front-wheel 71 is installed on the front axle, the rear-wheel 72 It is 12 inches of wheels, the right end of 72 wheel shaft of rear-wheel is fastened in the lateral threaded holes of the internal plug, and is cooperated with nut and tightened The right end of 72 wheel shaft of rear-wheel fixes the internal plug with the wavy swan-neck rear end, a left side for 72 wheel shaft of rear-wheel End is located in the U-shaped opening of the rear end of waveform pair fork, and passes through the twist-on of two nuts, by the left end of 72 wheel shaft of rear-wheel It is fixed with the U-shaped opening of the rear end of waveform pair fork.

Push lock tongue aside upwards, and by 6 collapsed forward of vehicle seat, under the action of connecting rod 63, the vehicle seat 6 Side arm 3, the flexible handle 1, the front fork stem 2 and the front-wheel 71 are inconjunction with together to the central sill 4 Lower section fold, and make the rear-wheel 72 be located at positioned at the saddle left side and left handgrip angle between so that fold The present invention afterwards has accomplished ultimate attainmently small and exquisite, reaches perfect folding effect, and the seat described in 65 clasp joint of folding location hook Under the action of pipe 6, the side arm 3, the flexible handle 1, the front fork stem 2 and the central sill 4 are fixed together In folded state.

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

Claims

1. a kind of stretching handle portable bicycle, including flexible handle, front fork stem, side arm, central sill, rear fork, vehicle seat, front-wheel, Rear-wheel and driving mechanism, it is characterized in that：Flexible handle includes left handgrip, right handgrip, upper latch fitting, lower latch fitting and knob, left handgrip Formed by the upper end of round tube as right-angle bending with right handgrip, at left handgrip and right handgrip right-angle bending below outside be provided with screw thread Hole, upper latch fitting are made of upper clamping piece, limit film and clamping screw, and respectively there are the circular hole of a upward and downward in the left and right ends of upper clamping piece, on It is connected with cracking for 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 is provided with about one To threaded hole, upper clamping piece upward and downward crack two upward and downward of left and right rearward threaded hole bottom end pass through two bolt twist-ons one limit Bit slice allows limit film to be connected to the bottom side of upper clamping piece, and the centre of upper clamping piece has one to crack vertical longitudinal direction with upper clamping piece upward and downward Hole, the rear end of upper clamping piece longitudinal hole connect the stop nut of a clamping screw, and left handgrip and right handgrip penetrate upper clamping piece or so two In the circular hole for holding upward and downward, and the threaded hole below at left handgrip and right handgrip right-angle bending is corresponded to the bottom side of upper clamping piece Face is screwed into another bolt that a bolt of two bolts is screwed into two bolts of neutralization of the threaded hole below at left handgrip right-angle bending In threaded hole below at right handgrip right-angle bending, left handgrip and right handgrip and upper clamping piece are made into the limit rotated, also, twist-on In two bolts in left handgrip and right handgrip, cooperates with the limit film for the bottom side for being connected to upper clamping piece, left handgrip and the right side can be used as Limit when hand handle is unfolded, clamping screw penetrates in the longitudinal hole of upper clamping piece, and is screwed into stop nut, tightens clamping screw Cracking for upper clamping piece upward and downward can be tightened；Lower latch fitting is made of lower clamping piece and clamping screw, and the left and right ends of lower clamping piece front are each There is the circular hole of a upward and downward, cracking for upward and downward, the right side in the middle part of lower clamping piece are connected on the circular hole of two upward and downwards of lower clamping piece front There is the circular hole of a upward and downward at end, and there is a circular hole of a upward and downward in lower clamping piece rear end to the right, and the centre of lower clamping piece front has one under Folder front upward and downward cracks vertical longitudinal hole, and the rear end of lower clamping piece longitudinal hole connects the stop nut of a clamping screw, under The circular hole of right end upward and downward in the middle part of folder and the upper end of front fork stem connect, and front fork stem is made of round tube, cylinder and front axle, round tube Bottom end pore in fill in cylinder, there is a cross-perforating in the bottom end of round tube to and together with cylinder, front axle penetrate round tube bottom end and It in the cross-perforating of cylinder, and wins to the left out, left handgrip penetrates in the circular hole of lower clamping piece left end upward and downward and right handgrip penetrates down In the circular hole of folder right end upward and downward, clamping screw is penetrated in the longitudinal hole of lower clamping piece, and is screwed into stop nut, tightens lock Tight bolt can tighten cracking for lower clamping piece upward and downward, and knob is connected to the top of left handgrip and right handgrip, and is located at upper clamping piece Top；Side arm is by rotary part and before connects part and constitutes, and rotary part is installed on the upward and downward circular hole of lower clamping piece rear end to the right, preceding Even the front end of part is in groove profile, and the two sides up and down of preceding even part groove profile have mutual to perforation, and the upper and lower of preceding even part rear end respectively has one Cross-perforating, preceding even part groove profile it is mutual rotary part is bolted to lock to being punched through；Central sill include beam pipe, preceding slotware, Slotware and vehicle body folder afterwards, beam pipe are made of chock in level metal rectangular pipe and two, tight in the pore of level metal rectangular pipe front and back end With interior chock is filled in, interior chock is the component for respectively having a longitudinal threaded bore up and down, in the pore of level metal rectangular pipe front end Interior chock is bolted preceding slotware by two, and preceding slotware is opening groove profile part facing forward, and there is phase in the lower end at left and right sides of preceding slotware It is mutual to perforation, the interior chock being inconjunction in the pore of level metal rectangular pipe rear end at left and right sides of level metal rectangular pipe rear end is opened There is a lateral perforation, vehicle body folder is made of leaf after folding frontal lobe, folding and folding lock, is located at level metal rectangular pipe rear end Pore in interior chock be bolted by two and fold frontal lobe and rear slotware, rear slotware is opening groove profile part facing forward, pit Preceding upper angle and lower end at left and right sides of part respectively have mutual to perforation, are connected to the rear slotware of beam pipe rear end, lower end phase The mutual cross-perforating for corresponding to beam pipe rear end to perforation, it is mutual to being punched through to lock bolt with before at left and right sides of preceding slotware The even cross-perforating rotation connection below part rear end；Afterwards fork by wavy swan-neck, Five-way tube, interior chock, waveform pair fork and it is interior Plug is constituted, and wavy swan-neck suppresses the curved component of corrugate, the left and right of wavy swan-neck rear end by the middle part of level metal rectangular pipe Two sides are provided with a mutual long hole, and the front and back in wavy swan-neck underside of forward face is respectively provided with a vertical hole, the cross in the middle part of Five-way tube To there is First Five-Year Plan rodding eye, the front and back that Five-way tube is located at Five-way tube hole is respectively provided with a vertical perforation, the vertical perforation before and after Five-way tube It by the cooperation of two pairs of bolts nut, is fixedly connected with the vertical hole before and after wavy swan-neck downside, the front end of waveform pair fork Face is riveted by the left side of rivet and wavy swan-neck front end, and internal plug is the component of the rectangular block shape with lateral threaded holes, Internal plug is filled in the pore of wavy swan-neck rear end, and it is mutual so that the lateral threaded holes of internal plug is corresponded to wavy swan-neck rear end Long hole, leaf is fixed by two bolts and the interior chock twist-on in the pore of wavy swan-neck front end after folding, after folding leaf by pair Lock bolt and fold frontal lobe rotation connection, fold lock and be connected to after folding on leaf, fold lock can with fold frontal lobe interlocking；Vehicle Seat includes seat pipe, lock-connecting piece, connecting rod, saddle and folds location hook, and seat pipe is by rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe It constitutes, by the upper end of a rectangular tube, lateral bend forms rectangle seat pipe to the left, and the transverse direction that is respectively provided with up and down of rectangle seat pipe lower end is worn Hole, the trailing flank of rectangle seat pipe lower end are provided with a long hole, and close-fitting fills in plug member, rectangle seat pipe in the pore of rectangle seat pipe upper end Close-fitting fills in lower plug member in the pore of lower end, and makes the cross-perforating of lower plug member or more corresponding to the cross above and below rectangle seat pipe lower end To perforation, the fluting of lower plug member backward is made to correspond to the long hole of the rear side of rectangle seat pipe lower end, circle saddle pipe by two bolts with it is upper Plug member is fixedly connected, the lower cross-perforating of seat pipe lower end by upper angle before at left and right sides of lock bolt and rear slotware mutually to wearing Hole rotation connection, the long hole of rectangle seat pipe lower end trailing flank neutralize the lock-connecting piece that is slidably connected in the lower fluting of plug member backward, interlocking Part can with the upper edge interlocking of rear slotware trailing flank, seat pipe lower end upper cross-perforating rotation connection connecting rod rear end, connecting rod by The rear and front end of one metal round steel is pressed into the component of right-angle bending, is respectively provided with a spiral shell at the two-end-point of right-angle bending before and after connecting rod Pit, the front end of connecting rod are rotatablely connected with the cross-perforating before connected above part rear end, and saddle is connected on round saddle pipe, folds positioning Hook connects are in the right side of beam pipe front end；Front-wheel is installed on front axle, and rear-wheel is installed in the internal plug and waveform pair fork of rear fork；It drives Motivation structure includes that axis, two cranks, chain wheel, two pedals, flywheel and chain, central axis are connected in Five-way tube, two cranks peace Both ends loaded on axis, chain wheel are fixedly connected on the crank on the right of two cranks, and flywheel is connected to the right side of rear-wheel, chain solderless wrapped connection In on chain wheel and flywheel；Interior chock by respectively there is the cutting off processing part of the rectangular aluminium profile of a circular hole up and down, interior chock up and down Tapped in two circular holes, respectively there are a hole, the upper lower opening of the rear bottom surface of the preceding slotware in the rear bottom surface of the preceding slotware up and down It is fixed by two bolts with the interior chock twist-on being located in the pore of level metal rectangular pipe front end；The rear undersurface lower end portions of slotware after described Respectively have a hole up and down, respectively there are a hole, the upper lower opening for folding frontal lobe and institute in the position to the right for folding frontal lobe up and down The threaded hole up and down of the upper lower opening and interior chock of stating the rear undersurface lower end portions of rear slotware is corresponding, respectively penetrates institute with two bolts In the upper lower opening for the rear undersurface lower end portions that the upper lower opening for stating folding frontal lobe neutralizes the rear slotware, and it is fastened to positioned at metal rectangular It is fixed in the threaded hole up and down of interior chock in the pore of pipe rear end, it is connected to the rear slotware of the rear end of the beam pipe, under End is mutual to be reinforced the rear slotware and the beam pipe on lock bolt to being punched through.

2. stretching handle portable bicycle according to claim 1, it is characterized in that：The left handgrip and the right handgrip Threaded hole corresponds respectively to the bottom side of the upper clamping piece of the upper latch fitting, the lower end side screw thread of the left handgrip and the right handgrip After hole is screwed into bolt, the limit that can be slided up and down as the lower clamping piece of the left handgrip and the right handgrip and the lower latch fitting Position, is connected to the limit film of the bottom side of the upper clamping piece, with two spiral shells being connected in the left handgrip and the right handgrip Bolt cooperation, limit when can be unfolded as the left handgrip and the right handgrip.

3. stretching handle portable bicycle according to claim 1, it is characterized in that：The rear end of the longitudinal hole of the upper clamping piece It is connected with a counterbore, the stop nut of a clamping screw is inlayed in the counterbore of the upper clamping piece, the clamping screw is by spiral shell Bolt and screw handle and be formed by connecting, the clamping screw further includes having stop nut, the middle part right end of the lower clamping piece up and down It is corresponding with the round tube close-fitting of the front fork stem to circular hole, the upward and downward circular hole and the front fork stem of the middle part right end of the lower clamping piece The upper end close-fitting of round tube is socketed, and the knob is a plastic part, and two lower ends of the knob are respectively connected with the circle of a upward and downward, institute The aperture for stating two circle collar aperture of knob is corresponding with the outer diameter of the left handgrip and the right handgrip, and the top of the knob is one The handle of knob.

4. stretching handle portable bicycle according to claim 1, it is characterized in that：The rotary part includes front axle Pipe, two zanjon bearings, a plane bearing and there is a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore, which is respectively milled with, places zanjon axis The counterbore held, in the upward and downward circular hole of the front axle tube rear end to the right that close-fitting is pressed into the lower clamping piece from bottom to top, two zanjon bearings It is embedded in the counterbore of front axle tube upper and lower side respectively, plane bearing is lining on the zanjon bearing of the upper end of the front axle tube, then will Shock-absorbing polyurethane cylinder is put on plane bearing, and the axial direction of shock-absorbing polyurethane cylinder has a hole, and by the inner hole of two zanjon bearings, The axis hole of plane bearing and the hole of shock-absorbing polyurethane cylinder, pair mutual corresponding to two sides above and below the front end groove profile for connecting part before described Perforation, with to lock bolt by the rotary part with it is described before connect the groove profile of part and connect.

5. stretching handle portable bicycle according to claim 1, it is characterized in that：Connecting part before described is cutting for aluminium extruded type Piece workpiece, the front end that part is connected before described respectively have a lateral perforation, middle part to have reinforcing rib in the upper and lower of groove profile, rear end, institute Respectively there is a circular hole in the quadrangle for connecting the reinforcing rib of part before stating, and in the circular hole for the reinforcing rib quadrangle for connecting part before described tapping at screw thread Hole, the two sides up and down that the groove profile of part is connected before described are provided with mutual to perforation, and the two sides punching press up and down of the groove profile of part is connected before described At fillet, it further includes both sides piece that part is connected before described, and the quadrangle of side piece rectangular patch as made of plastic injection, side piece rectangle is each Have a hole, the hole of side piece rectangle quadrangle with it is described before to connect the threaded hole of reinforcing rib quadrangle of part corresponding, and by bolt by two Side piece be connected to it is described before connect the right and left of part.

6. stretching handle portable bicycle according to claim 1, it is characterized in that：The upper plug member respectively has one by front and back The cutting off processing part of the rectangular aluminium profile of circular hole, tapped, the rectangle seat pipe in two circular hole of front and back of the upper plug member Upper end be inconjunction with the upper plug member and squeeze into pin reinforcing, lower plug member rectangular block as made of nylon injection-molding together There are a fluting backward in the component of shape, the trailing flank of the lower plug member, and the top that the lower plug member is slotted backward has one upward Respectively there are a cross-perforating in counterbore, the left and right sides of the lower plug member up and down, the circle saddle pipe processed by metal circular tube and It is radial to perforation that one is respectively provided at, the front and back of the rear end of the round saddle pipe.

7. stretching handle portable bicycle according to claim 1, it is characterized in that：The lock-connecting piece is by flat pin, lock Tongue and spring are constituted, and spring is put into the fluting of the lower plug member backward, and to be located at the lower plug member upward for the upper end of spring Counterbore in, then in the fluting of the lower plug member backward penetrate flat pin, respectively have a longitudinal spiral shell up and down in the middle part of flat pin Pit, lock tongue are a block-like metal parts, and the lower end of lock tongue is in the lock tongue shape of door lock, and the upper end of lock tongue respectively has one up and down Longitudinal perforation, two bolts that are punched through above and below lock tongue are fixedly connected with the threaded hole above and below flat pin, and lock tongue is in spring Effect is lower can be with the upper edge interlocking of the trailing flank of the rear slotware.

8. stretching handle portable bicycle according to claim 1, it is characterized in that：It wears from left to right the rear end of the connecting rod Enter in the upper cross-perforating of the lower end of the seat pipe, blending bolt is fastened in the threaded hole of the rear end of the connecting rod and positions, institute The front end for stating connecting rod is penetrated from left to right in the cross-perforating above preceding even part rear end, and blending bolt is fastened to the connecting rod It is positioned in the threaded hole of front end, the location hook that folds rivets a hook-type nylon part, institute by the top of a sheet of spring steel State the lower end hole You Liang for folding location hook, two for folding location hook and passing through the front end right side of two bolts and the beam pipe Lateral threaded hole is fixedly connected.