CN206446723U

CN206446723U - Quick-folding handlebar drag type portable bicycle

Info

Publication number: CN206446723U
Application number: CN201720017146.6U
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2017-01-06
Filing date: 2017-01-06
Publication date: 2017-08-29
Anticipated expiration: 2027-01-06

Abstract

A kind of quick-folding handlebar drag type portable bicycle, including quick-folding handlebar, front fork, side arm, central sill, central sill connects part, tow wheel, fork afterwards, vehicle seat, front-wheel, trailing wheel and drive mechanism, quick-folding handlebar is by left hand handle, right handgrip, upper lock-connecting piece, left lock-connecting piece, right lock-connecting piece, fold substrate and two hands constitute keeper, substrate is folded to be connected with front fork and side arm, central sill and side arm, vehicle seat and central sill connect part connection, vehicle seat includes seat pipe, lock-connecting piece, connecting rod, saddle and folding positioning lock, central sill connects part and includes shock-absorbing part, central sill connects part and is connected with towing wheel and rear fork, fork includes Five-way tube afterwards, Five-way tube connects part, dropout and shock-absorbing catch, front-wheel is connected to front fork, trailing wheel is connected to rear fork, drive mechanism includes axis, two cranks, chain wheel, two pedals, flywheel and chain, central axis is connected in Five-way tube.

Description

Quick-folding handlebar drag type portable bicycle

Technical field

The utility model is related to a kind of folding portable bicycle, more particularly to a kind of to regard Five-way tube as rotating shaft --- Quick-folding handlebar drag type portable bicycle.

Background technology

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't reach sufficiently small degree after folding.

The content of the invention

The purpose of this utility model is to provide for a kind of handlebar in the new type foldable mode of quick-folding handlebar, rear fork with Folded by rotating shaft forward downward of Five-way tube, vehicle seat is folded with side arm folding linkage, be able to can be reached after having folded sufficiently small --- quick-folding handlebar drag type portable bicycle.What the purpose of this utility model was realized in；Quick-folding handlebar Drag type portable bicycle, including quick-folding handlebar, front fork, side arm, central sill, central sill connect part, tow wheel, rear fork, vehicle seat, Front-wheel, trailing wheel and drive mechanism, it is characterized in that：Quick-folding handlebar include left hand handle, right handgrip, upper lock-connecting piece, left lock-connecting piece, Right lock-connecting piece, fold substrate and two hands keeper, left hand being to be formed by the upper end of pipe as right-angle bending with right handgrip, The lower end of left hand handle and the lower end of right handgrip are respectively provided with a pair of perforation, and the upper end of left hand handle connects the left part part of upper lock-connecting piece, The right members of the upper lock-connecting piece of upper end connection of right handgrip, the bottom of left hand handle connects left lock-connecting piece, the bottom of right handgrip Connect right lock-connecting piece, being connected to perforation for lower end is folded the left side groove of substrate by left hand, right handgrip lower end is connected to perforation In the right groove for folding substrate, folding the anterior left side of substrate has a vertical left side groove, and folding the anterior the right of substrate has one Vertical the right groove, folding the right back of substrate left side groove has a vertical left round tube hole, behind the right side for folding the left round tube hole of substrate Left rectangular opening vertical Fang Youyi, folds close-fitting in the left rectangular opening of substrate and fills in left flat pin, the front left side twist-on of left flat pin Left semicircle hook bolt, folding groove left back on the right of substrate has a vertical right round tube hole, folds the left back of the right round tube hole of substrate There is a vertical right rectangular opening, fold close-fitting in the right rectangular opening of substrate and fill in right flat pin, the forward right side twist-on of right flat pin is right Button-headed bolt, folding the right rectangular opening rear of substrate has the vertical hole in a rear end, folds the top and bottom in the vertical hole in substrate rear end A bearing is respectively inlayed, the left round tube hole of substrate is folded and folds the right round tube hole connection front fork of substrate, left lock-connecting piece can be with folding substrate Left semicircle hook bolt interlocking, right lock-connecting piece can with fold substrate right semi-circle hook bolt interlocking, the left part part energy of upper lock-connecting piece With the right members interlocking of upper lock-connecting piece, two hands are connected to keeper bottom and the right wheel fork arm of front fork revolver fork arm Bottom, left hand with right handgrip after folding, and left hand is right the hand positioned at revolver fork arm is caught in the C-shaped bayonet socket of keeper Hand is being caught in hand positioned at right wheel fork arm in the C-shaped bayonet socket of keeper, folding the two bearings in the vertical hole in rear end on the right of substrate By being connected to lock bolt with side arm；The front end of side arm is in groove profile, and the both sides up and down of side arm groove profile have mutual to perforation, side arm The upper and lower of rear end respectively has a cross-perforating, side arm groove profile it is mutual to being punched through to lock bolt with folding rear end on the right of substrate The endoporus connection of two bearings in vertical hole；The front end of central sill is connected with side arm, and rear end and the central sill of central sill connect part and vehicle seat is connected, Central sill connects part and is made up of middle even part and shock-absorbing part, and shock-absorbing part is made up of shock resistance block and bullet fitting, and there is a horizontal stroke back upper place of middle even part There are four transverse holes in the middle part of Xiang Kong, middle even part, the middle part of middle even part is also provided with a longitudinal elongated hole and two longitudinally connected holes, middle even part The back lower place have a Five-way tube corresponding aperture, middle even part is connected to the left side of central sill rear end, shock-absorbing part is connected in the middle part of middle even part Rear, tow wheel and be connected in the middle even transverse holes of part back upper place；Fork connects part, two back vents by Five-way tube, two Five-way tubes afterwards Piece and shock-absorbing catch are constituted, and Five-way tube is penetrated in the middle even Five-way tube corresponding aperture of part, and the front portion that two Five-way tubes connect part is connected to The two ends of Five-way tube, the rear end that two Five-way tubes connect part is connected with two dropout, and shock-absorbing catch is connected to two Five-way tubes and connects part front portion Top, shock-absorbing catch mutually leaned on shock-absorbing part and produces shock-proof effect, and rear fork can be folded using Five-way tube as axle center to inferoanterior； The seat pipe of vehicle seat and the rear end thereof of central sill are connected, and the connecting rod of vehicle seat and the seat pipe of vehicle seat and side arm, which are rotated, to be connected, and front-wheel is installed In front fork, trailing wheel is installed on two dropout, by vehicle seat collapsed forward, and vehicle seat is inconjunction with side arm, quick-folding handlebar, front fork and preceding Wheel is folded to the lower section of central sill together；Drive mechanism includes axis, two cranks, chain wheel, two pedals, flywheel and chain, and axis turns Dynamic to be 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, flywheel Trailing wheel is connected to, chain is wire-wrapped on chain wheel and flywheel.

The beneficial effects of the utility model are：The ingenious cooperation that the utility model passes through profile piece so that vehicle body is without electricity Weldering welding, represents a kind of new trend of the manufacturing process of bicycle；Handlebar of the present utility model is using fast folding handlebar Form so that the folding of handlebar reaches both most simply, and reach most effective；Front fork is connected to folding substrate, folds substrate The vertical hole connection side arm in rear end, central sill is located at position to the right so that the trailing wheel after folding can be located at lower clamping piece and connect two front forks Opening in shelves between bar, has accomplished the utility model after folding ultimate attainmently compact；Central sill connects the full side that part utilizes polyurethane The feature of position elasticity, will play the elongated hole interlocking of fitting and shock-absorbing substrate so that after bullet fitting and shock-absorbing substrate are clasped, polyurethane Elastic force is enough that fitting will be played and shock-absorbing substrate latching force exceedes back vent and the downward gravity of trailing wheel, so as to eliminate positioning lock interlocking Complex way；Part is connected using central sill and rotates connection Five-way tube, the mode that Five-way tube is connected with rear fork again so that this practicality is new The rear fork of type can connect part folding, and the effect with rear shock-absorbing with central sill；The upper end that central sill connects part is installed on using wheel is towed, So that the utility model can be towed after folding, after vehicle body is folded, vehicle seat folds positioning lock and the flanging of slotware backward before central sill Interlocking, can produce more effective locating effect.

Brief description of the drawings：

Fig. 1 is the utility model structural representation；

Fig. 2 is the expanded schematic diagram of the utility model quick-folding handlebar；

Fig. 3 is the gathering schematic diagram of the utility model quick-folding handlebar；

Fig. 4 is the schematic diagram that the utility model central sill connects part；

Fig. 5 is the utility model folding process schematic diagram；

Fig. 6 is that the utility model folding finishes figure；

In figure：1 --- quick-folding handlebar, 2 --- front fork, 3 --- side arm, 4 --- central sill, 51 --- central sill connects part, The rear fork of 52 --- towing wheel, 53 ---, 6 --- vehicle seat, 71 --- front-wheel, 72 --- trailing wheel, 8 --- drive mechanism；Wherein Quick-folding handlebar 1 also includes：The upper lock-connecting piece of 11 --- left hand handle, 12 --- right handgrips, 13 ---, 14 --- left lock-connecting piece, 15 --- right lock-connecting pieces, 16 --- fold substrate, 17 --- and hand is keeper；Vehicle seat 6 also includes：Vehicle seat 6 also includes：61—— Seat pipe, 62 --- lock-connecting piece, 63 --- connecting rod, 64 --- saddle, 65 --- fold positioning lock.

Embodiment：

According to Fig. 1, described quick-folding handlebar drag type portable bicycle, including quick-folding handlebar 1, front fork stem 2, Side arm 3, central sill 4, central sill connect part 51, tow wheel 52, rear fork 53, vehicle seat 6, front-wheel 71, trailing wheel 72 and drive mechanism 8；

Described quick-folding handlebar 1 includes left hand 11, right handgrip 12, upper lock-connecting piece 13, left lock-connecting piece 14, right interlocking Part 15, substrate 16 and hand are folded keeper 17, described left hand is all by the upper end of pipe 11 and described right handgrip 12 Portion is formed as right-angle bending, and the left hand in 11 lower end and the lower end pore of the right handgrip 12 being respectively plugged with a thick-walled metal Pipe, the left hand is inconjunction with 11 lower end the thick-walled metal pipe being located therein and is provided with a pair of perforation, and the left hand is 11 Lower end to the hole heart extended line of perforation and the left hand 11 right-angle bending in the 45 ° of angles overlooked, the left hand is 11 Lower end is to being provided with a screwed hole above perforation, the left hand is 11 screwed hole hole heart extended lines and the left hand 11 lower ends pair The hole heart extended line of perforation is vertical in what is overlooked, and the lower end of the right handgrip 12 is inconjunction with the thick-walled metal pipe being located therein and opened There are a pair of perforation, the lower end of the right handgrip 12 is in overlook with the right-angle bending of the right handgrip 12 to the hole heart extended line of perforation 45 ° of angles, the lower end of right handgrip 12 is to being provided with a screwed hole above perforation, the screwed hole hole heart extension of right handgrip 12 Line is vertical in what is overlooked to the hole heart extended line of perforation with the lower end of right handgrip 12.

Described upper lock-connecting piece 13 includes left part part and right members, and described left part part is made up of modification of nylon, the left side The left end of part has a vertical hole of cracking, and it is vertical mutual to perforation, the left part by one that the left part part cracks that hole cracks The right part of part is in the cylinder of stretching, extension to the right, and the right-hand member of the left part part cylinder has convex shoulder to the right, the left part part There is external screw thread on convex shoulder, the borehole jack that cracks of the left part part is connected to lower section of the left hand 11 upper end right-angle bendings, is used in combination It is vertical mutual in perforation, being coordinated with nut and being tightened, by cracking for the left part part that bolt penetrates that the left part part cracks Hole hug in the left hand 11 upper end.

Described right members are by connecting seat and screw set and constitute, and connecting seat is made up of modification of nylon, and the right-hand member of connecting seat has Vertical hole of cracking, it is vertical mutual to perforation by one that connecting seat cracks that hole cracks, and connecting seat left part is in stretching, extension to the left Circular bar shape, the left end of connecting seat circular bar shape has axial screwed hole, and the borehole jack that cracks of connecting seat is connected on the right handgrip 12 The lower section of end right-angle bending, it is vertical mutual in perforation, being coordinated with nut and being tightened that blending bolt penetrates that connecting seat cracks, The hole of cracking of connecting seat is hugged in the upper end of the right handgrip 12, set is screwed and is made up of modification of nylon, screw the left end of set There is a counterbore, screw and internal thread is carried in the counterbore of set, screwing the axial direction of the right part of set has a round tube hole, screw set axial direction Round tube hole and the female counterbore insertion of band for screwing set, the round tube hole for screwing set axial direction are socketed on the stretching, extension of connecting seat to the left Circular bar shape on, and by the cooperation of bolt and pad, set will be screwed be rotatably connected and carry interior spiral shell on connecting seat, screw set The counterbore of line can be pinned with the external screw thread twist-on on the left part part convex shoulder.

Described left lock-connecting piece 14, including left interlocking seat, left interlocking hook, left bolt and left interlocking spring, it is described Left interlocking seat is made up of Al squeezing material section, and the left front end of the left interlocking seat is vertical circular hole, the right side of the left interlocking seat Rear end is vertical groove profile, and the both sides of the vertical groove profile of left interlocking seat have one mutual to perforation, and the left interlocking seat passes through Vertical circular hole close-fitting be socketed on left hand 11 bottom and positioned at the left hand the lower section of 11 screwed holes, the described right side Lock-connecting piece 15, including right interlocking seat, right interlocking hook, right bolt and right interlocking spring, described right interlocking seat is by aluminium extruded type Material section is made, and the right front ends of the right interlocking seat are vertical circular hole, and the left back end of the right interlocking seat is vertical groove profile, The both sides of the vertical groove profile of right interlocking seat have one mutual to perforation, and the right interlocking seat passes through vertical circular hole close-fitting and is socketed In the bottom of right handgrip 12 and positioned at the lower section of the screwed hole of right handgrip 12.

Described left interlocking hook is made up of Al squeezing material section, and the top of the left interlocking hook is latch hook handle, the left lock The latch hook handle for connecing hook is in vertical bar shaped sheet, and a slotted hole, the left interlocking hook are provided with the middle part of the left interlocking hook lock neck of hook The left front end of lower section is that the right rear end below cast portion, the left interlocking hook is in downward hook-type, the cast of the left interlocking hook Portion to lock bolt with mutual being rotated to perforation of the left vertical groove profile of interlocking seat by being connected, and left bolt penetrates the left side In the slotted hole of the interlocking hook lock neck of hook and in left interlocking spring, then it is screwed into screwed hole of the left hand 11 bottoms, and And the bolt head of left bolt as outside the left interlocking hook lock neck of hook bullet it is spacing, described right interlocking hook is by Al squeezing material Section is made, and the top of the right interlocking hook is latch hook handle, and the latch hook handle of the left interlocking hook is in vertical bar shaped sheet, described It is cast portion, the right interlocking hook that the right front ends below a slotted hole, the right interlocking hook are provided with the middle part of the right interlocking hook lock neck of hook The left back end of lower section is in downward hook-type, and the cast portion of the right interlocking hook passes through to lock bolt and the right interlocking seat vertical slot Type it is mutual rotate connection to perforation, right bolt is penetrated in the slotted hole of the right interlocking hook lock neck of hook and right interlocking spring In, then be screwed into the screwed hole of the bottom of right handgrip 12, and the bolt head of right bolt is used as the right interlocking Bullet is spacing outside the hook lock neck of hook.

Described folding substrate 16 is made up of Al squeezing material, and described folding substrate 16 also includes left flat pin, right flat There is a vertical left side groove on square cotter, left semicircle hook bolt and right semi-circle hook bolt, the anterior left side of the folding substrate 16, described Folding the anterior right-hand member of substrate 16 has vertical the right groove, and the left side groove of folding substrate 16 is in opening to the U-shaped of left front Groove, the both sides of the left side groove lower end of folding substrate 16 are provided with mutual to perforation, and folding substrate 16 the right groove is in opening To the U-type groove of right front, the both sides of the right groove lower end of folding substrate 16 are provided with mutual to perforating, the folding substrate 16 There is a vertical left round tube hole right back of left side groove, and there is a vertical left square right back of the left round tube hole of the folding substrate 16 Close-fitting fills in left flat pin, the front left side twist-on left semicircle head spiral shell of left flat pin in shape hole, the left rectangular opening of the folding substrate 16 There is a vertical right round tube hole bolt, the right groove left back of folding substrate 16, the right round tube hole of the folding substrate 16 it is left back Close-fitting fills in a right flat pin, the right side of right flat pin in right rectangular opening vertical Fang Youyi, the right rectangular opening of the folding substrate 16 There are the vertical hole in a rear end, the folding substrate in the right semi-circle hook bolt of front side twist-on one, the right rectangular opening rear of folding substrate 16 The upper and lower side in the 16 vertical hole in rear end respectively has the counterbore for inlaying zanjon bearing, the upper end in the vertical hole in the rear end of folding substrate 16 With respectively inlay a zanjon bearing in the counterbore of lower end, the left round tube hole of the folding substrate 16 neutralizes the right side for folding substrate 16 Close-fitting is socketed on two upper ends of the front fork 2, left half that described left lock-connecting piece 14 can be with the folding substrate 16 in round tube hole Snap bolt interlocking, the right semi-circle hook bolt interlocking that described right lock-connecting piece 15 can be with the folding substrate 16, the upper interlocking The right members of part 13 screw set can be with the upper left part part of lock-connecting piece 13 convex shoulder twist-on.

Described hand has modification of nylon to be made keeper 17, and the hand has one vertical to open the rear end of keeper 17 Slot apertures, the hand vertical has one mutual to perforation, front end of the hand keeper 17 what keeper 17 cracked that hole cracks There is the C-shaped bayonet socket of the opening of a vertical view forward, keeper 17 is connected to the left front fork arm by the hand described in one by the borehole jack that cracks Bottom, penetrated with bolt the hand keeper 17 is cracked it is vertical mutual to being fixed in perforation, with top nut twist-on, separately Hand described in one is connected to keeper 17 by the borehole jack that cracks the bottom of the right front fork stem, and the hand is penetrated with bolt fixed Position part 17 crack it is vertical mutual to being fixed in perforation, with top nut twist-on, when described left hand is 11 and described right handgrip After 12 fold, described left hand is caught in C-shaped bayonet socket of the hand positioned at revolver fork arm keeper 11, described right handgrip 12 The hand positioned at right wheel fork arm is caught in the C-shaped bayonet socket of keeper.

Described front fork 2 is made up of left front fork arm and right front fork stem, and described left front fork arm and described right front fork stem are all It is made up of metal circular tube, the lower end of the lower end of the left front fork arm and the right front fork stem is all in flattening shape, the left front fork arm Lower end flattening at and the lower end flattening of the right front fork stem at be all provided with the gap of ∩ shapes, the upper end of the left front fork arm and institute State the left round tube hole close-fitting socket for folding substrate 16 and reinforced with pin, the upper end of the right front fork stem and the folding substrate 16 right round tube hole close-fitting is socketed and reinforced with pin.

Described side arm 3 is that the slice processing part or aluminium of aluminium extruded type forge part or aluminium diecasting, the side arm Respectively there is a horizontal perforation front end in groove profile, the upper and lower of rear end, and the both sides up and down of the side arm groove profile are provided with mutual to wearing Hole, the both sides up and down of the side arm groove profile are rounded, and two sides are mutual above and below the front end groove profile of side arm 3 corresponds to perforation The endoporus for folding two zanjon bearings in the vertical hole in the rear end of substrate 16, by locking bolt by the front end of described side arm 3 Rotate and be connected with the vertical hole in rear end of the folding substrate 16.

Described central sill 4 includes beam pipe, preceding interior chock, rear interior chock, preceding slotware, rear slotware and rear fastener, described beam Pipe is made up of level metal rectangular pipe, the left and right sides of the beam pipe rear end, is provided with four mutual cross-perforatings, the beam pipe front end Pore in close-fitting fill in before in chock, described preceding interior chock is by respectively there is the cut-out of the rectangular aluminium section bar of a circular hole up and down It is tapped in workpiece, two circular holes up and down of the preceding interior chock, the side of the beam pipe front end is inconjunction with positioned at beam pipe The interior chock in the pore of front end squeezes into the positioning of two pins, and the preceding interior chock is fixed on to the pore of the beam pipe front end In, described preceding slotware is to strike out the groove profile part facing forward that is open by sheet metal, and there is phase the lower end of the preceding slotware left and right sides It is mutual that there is flanging backward the upper end for respectively having bottom surface after a hole, the preceding slotware up and down of bottom surface after the preceding slotware to perforation, After the preceding slotware the upper lower opening of bottom surface by two bolts with the pore of beam pipe front end before in chock twist-on fix, it is described The preceding slotware left and right sides is mutual to be connected to being punched through rotating lock bolt with the cross-perforating below the rear end of side arm 3.

Described rear interior chock is pore of the rear interior chock from beam pipe rear end by one or four jiaos of parts for respectively having a circular hole In fill in, and will it is described after in chock corner circular hole, respectively with four mutual cross-perforatings of the beam pipe rear end Corresponding, described rear slotware is to strike out be open groove profile part facing forward, the left and right sides on the rear slotware top by sheet metal Anterior angle have it is mutual to perforation, there are four mutual cross-perforatings, the rear slotware in the left and right sides of the rear slotware bottom Four mutual cross-perforatings, four mutual cross-perforatings with the beam pipe rear portion are corresponding, and rear fastener is by nylon system Into having the notch of a c types below rear fastener, the connecting hole for having two upward and downwards in rear fastener c type grooves mouthful, rear fastener passes through two spiral shells Tether the rear portion for being connected to the beam pipe.

Described central sill, which connects part 51, includes middle even part and shock-absorbing part, it is described in connect part by Al squeezing material cut into slices after reprocess Into or aluminium forge part or aluminium diecasting, the middle even part back upper place, which has in the middle part of a transverse holes, the middle even part, four Four cross-perforatings are corresponding with described four mutual cross-perforatings in beam pipe rear end in the middle part of cross-perforating, the middle even part, institute Have in the middle part of the company's of stating part in longitudinal slotted hole, the slotted hole and described middle even four cross-perforatings of part of the middle even part longitudinal direction The cross-perforating of rear corner be connected, also have the connecting holes of two longitudinal directions, the horizontal stroke of the middle even part back lower place on the middle even part To there is a Five-way tube corresponding aperture.

With four to lock bolt by it is described it is middle even part four cross-perforatings, with the rear end of the beam pipe and rear slotware and after Interior chock is fixed together, and described shock-absorbing part is by shock resistance block and plays fitting and constitutes, described shock resistance block be by polyurethane into Have a through hole and two connecting holes on the shock resistance block of rectangular block shape, described shock resistance block, the connecting hole of the shock resistance block be counterbore with The hole of perforation connection, two connecting holes of the shock resistance block respectively pass through two longitudinal connecting holes of a pair of lock bolts and the middle even part Connection, described bullet fitting is a rod metalwork, and one of the bullet fitting is in cast, and the other end of the bullet fitting is round Bar forms the obtuse angle raised up by two bendings, and the cast of the bullet fitting is penetrated in the slotted hole of the middle even part longitudinal direction In, the cast for playing fitting is threaded into being connected to lock bolt for the middle even rear corner cross-perforating of part, and the bullet connects The rod of part is penetrated in the through hole of the shock resistance block, and it is described bullet the bending of fitting two and form the obtuse angle raised up and be exposed to The rear of the shock resistance block, the bending of bullet fitting two and form the obtuse angle raised up can be with the rear shock-absorbing catch of fork 53 Elongated hole interlocking.

The described wheel 52 that tows is penetrated in two tugboats, two linings to lock bolt by being constituted to lock bolt, two bushing pipes and two tugboats Pipe is neutralized in the middle even transverse holes of part back upper place and twist-on, and two tugboats are connected to the both sides of the middle even part back upper place, Tugboat is the PU wheels of plastic wheel hub, and a deep groove ball bearing is respectively inlayed in the centre of PU wheels two sides, two deep groove ball bearings of PU wheels it Between be also lined with a lining ring, two tugboats open open shelves of the shelves less than the crank described in two, and positioned at the shelves of opening of the crank described in two Inner side.

Described rear fork 53 connects part, shock-absorbing catch and two dropout by Five-way tube, two Five-way tubes and constituted, and described five are logical Pipe is processed by metal tube, and described Five-way tube is penetrated in the middle even Five-way tube corresponding aperture of part, and described five The left and right ends of siphunculus are winning in the middle even Five-way tube corresponding aperture of part, and it is by Al squeezing material that described Five-way tube, which connects part, Slice processing part, it is cast that described Five-way tube, which connects part front portion, and the Five-way tube connects the collar aperture of part cast and the Five-way tube External diameter it is corresponding, the Five-way tube, which connects, two vertical rods above part cast, the Five-way tube connects between the rod of part two There is one to crack, the Five-way tube connects the collar aperture for connecting part cast with Five-way tube of cracking between the vertical rod of part two and connected, described five lead to Pipe has longitudinal direction mutual to perforation between connecting the vertical rod of part two, and it is longitudinally mutual to penetrating spiral shell in perforation that the Five-way tube connects part Bolt, and one end twist-on nut of bolt, the rear portion that the Five-way tube connects part cast is in piece shape, and the Five-way tube connects part piece shape Rearward end has several screwed holes, and Five-way tube described in two connects the left and right ends noose of the cast of part respectively with the Five-way tube, tightens Five-way tube described in two connects the part longitudinally mutual screw bolt and nut in perforation, and Five-way tube described in two is connected into part and is respectively fixedly connected with In the left and right ends of the Five-way tube.

Described shock-absorbing catch is stamped to form by a sheet metal, the both sides Ge Youyi holes of the shock-absorbing catch, described to keep away There is an elongated hole in the middle part of shake catch, the both sides of the shock-absorbing catch are positioned over the Five-way tube and connect cracking between the rod of part two, The shock-absorbing catch two it is lateral opening correspond to Five-way tube described in two to connect longitudinal direction between the rod of part two mutual to perforation, pass through two spiral shells The twist-on of bolt nut, will be described while the left and right ends that Five-way tube described in two connects part cast and the Five-way tube are tightened up Five-way tube described in shock-absorbing catch and two connects the fixation of cracking between the rod of part two.

Described dropout is made up of shape, and described dropout upper edge and lower edge are respectively in the half of evagination Round is tubular, and there are several holes the leading section of the dropout, and several holes and the Five-way tube of the dropout leading section connect part Several screwed holes of rearward end are corresponding, have a wavy bending in the middle part of the dropout, there is an opening rear end of the dropout U-shaped gap backward, dropout is symmetrical described in two, and dropout described in two passes through Five-way tube described in several bolts and two respectively Even part rearward end connection, with it is described it is middle even part be connected after the rear fork 53, can by axle of Five-way tube and it is middle connect part five Siphunculus corresponding aperture rotatable engagement, enables described rear fork 53 to be folded to inferoanterior, and described rear fork 53 is folded to inferoanterior Afterwards, the semi-circle tubular in evagination of the anterior lower edge of the right dropout, can with the c type grooves mouth of fastener after the central sill 4, Described rear fork 53 is positioned with described central sill 4, after described rear fork 53 is deployed, be connected to Five-way tube described in two and connect The shock-absorbing catch during the rod of part two cracks can lean with described shock-absorbing part, and the elongated hole of the shock-absorbing catch with it is described Play the bending of fitting two and form the obtuse angle correspondence raised up and energy interlocking.

Described vehicle seat 6 includes seat pipe 61, lock-connecting piece 62, connecting rod 63, saddle 64 and folds positioning lock 65, described seat pipe 61 by rectangle seat pipe, upper plug member and circle saddle pipe constitute, described rectangle seat pipe be by the upper end of a rectangular tube to the left lateral bend and Into close-fitting fills in described upper plug member in the pore of the rectangle seat pipe upper end, and described upper plug member is that respectively have a circle by front and rear It is tapped in the cutting off processing part of the rectangular aluminium section bar in hole, front and rear two circular hole of the upper plug member, in the rectangle seat pipe End is inconjunction with described upper plug member and squeezes into close-fitting socket rectangle gold in pin reinforcing, the pore of the rectangle seat pipe lower end together Category pipe, the rectangle seat pipe bottom is together respectively provided with a cross-perforating, simultaneously with being socketed rectangular metal pipe therein in upper, middle and lower Together be provided with an elongated hole in trailing flank, described circle saddle pipe is processed by metal circular tube, the round saddle pipe rear end it is front and rear Respectively be provided with a radial direction to perforation, two couple of the round saddle pipe rear end is punched through two screwed holes of two bolts and the upper plug member It is fixedly connected, the lower cross-perforating of the rectangle seat pipe bottom passes through to lock bolt and upper angle before the rear slotware left and right sides Mutual rotates connection to perforation, and the middle cross-perforating of the rectangle seat pipe bottom passes through to lock-connecting piece described in lock bolt connection The cast of 62 hook-like parts, described lock-connecting piece 62 is made up of hook-like part and extension spring, and hook-like part is that front end is that cast, rear end are hook-type Metal parts, the hook-type of hook-like part is in downward dead bolt shape, and the hook-type of hook-like part is passed on rear side of the rectangle seat pipe bottom There are a transverse holes in front of the elongated hole in face, hook-like part hook-type, the transverse holes in the front of hook-like part hook-type are located at the rectangle seat pipe In the pore of bottom, one end of extension spring is connected to the transverse holes of hook-like part, and one end of extension spring, which is connected to, penetrates the rectangle seat In the lower cross-perforating of pipe bottom to lock bolt, the hook-type of hook-like part in the presence of the extension spring can with rear side of the rear slotware The upper edge interlocking in face, the rear end of the connecting rod 63 is penetrated in the upper cross-perforating of the seat pipe bottom from left to right, is used in combination Bolt is fastened in the screwed hole of the rear end of connecting rod 63 and positioned, and described connecting rod 63 is the rear and front end pressure by a metal round steel It is made before and after the part of right-angle bending, the connecting rod 63 and is respectively provided with a screwed hole, the connecting rod 63 at the two-end-point of right-angle bending Front end penetrate from left to right in the cross-perforating above the rear end of side arm 3, blending bolt is fastened to the front end of connecting rod 63 Positioned in screwed hole, described saddle 64 is connected on described circle saddle pipe, and described folding positioning lock 65 is by pedestal, circular hole Plug, latching connector, spring and pull handle are constituted, and pedestal is the cutting off processing part of aluminium section bar, and the front portion of pedestal is a vertical rectangular tube Hole, the rear portion of pedestal is in groove profile, and the groove profile of pedestal is stuck in the rectangle seat pipe top, and is positioned with to lock bolt twist-on, pedestal A circular hole plug is fixed in rectangular opening lower end, and there is the circular hole of a upward and downward centre of circular hole plug, and latching connector is made up of tapered end and locking bar, lock Head is in upward dead bolt shape, and there are transverse holes the lower section connection locking bar of tapered end, the lower end of locking bar, and locking bar is penetrated in spring and circular hole plug In the circular hole of upward and downward, and tapered end is slidably connected in the rectangle pore of pedestal, locking bar transverse holes connection pull handle, pull handle has Pull handle bolt and two plastics pull handles are constituted, after by described 6 collapsed forward of vehicle seat, the latching connector energy for folding positioning lock 65 With the flanging interlocking of the preceding slotware backward, the pull handle of folding positioning lock 65, the interlocking of the folding positioning lock 65 described in post-tensioning Head can unclamp with the flanging of the preceding slotware backward, and the vehicle seat 6 described in energy deploys with described central sill 4 and described side arm 3.

Described front-wheel 71 is 8 inches of wheel, and the two ends of the wheel shaft of front-wheel 71 are installed on two institutes by the cooperation of nut In the gap of ∩ shapes for stating front fork stem, described trailing wheel 72 is 10 inches of wheels, and the two ends of the wheel shaft of trailing wheel 72 pass through spiral shell respectively In female cooperation, the U-shaped gap for being fixedly connected on described 53 liang of dropout of rear fork.

Described drive mechanism 8 includes axis, two cranks, chain wheel, two pedals, flywheel and chain, and described axis passes through Axis accessory is connected in described Five-way tube, and the crank described in two is installed on the two ends of the axis, and described chain wheel is fixed On the right crank for being connected to crank described in two, the pedal described in two is connected on the crank described in two, described flywheel The right side of the trailing wheel 72 is connected to, described chain is wire-wrapped on described chain wheel and described flywheel.

Claims

1. a kind of quick-folding handlebar drag type portable bicycle, including quick-folding handlebar, front fork, side arm, central sill, central sill connect Part, wheel, rear fork, vehicle seat, front-wheel, trailing wheel and drive mechanism are towed, it is characterized in that：Quick-folding handlebar includes left hand handle, the right side Hand handle, upper lock-connecting piece, left lock-connecting piece, right lock-connecting piece, folding substrate and two hands are keeper, and left hand handle and right handgrip are by pipe Upper end formed as right-angle bending, the lower end of left hand handle and the lower end of right handgrip are respectively provided with a pair of perforation, the upper end of left hand handle The left part part of the upper lock-connecting piece of portion's connection, the right members of the upper lock-connecting piece of upper end connection of right handgrip, the bottom connection of left hand handle Left lock-connecting piece, the bottom of right handgrip connects right lock-connecting piece, and being connected to perforation for lower end is folded the left side groove of substrate by left hand, The right groove that folding substrate is connected to perforation of right handgrip lower end, folding the anterior left side of substrate has a vertical left side groove, Folding the anterior the right of substrate has vertical the right groove, and folding the right back of substrate left side groove has a vertical left round tube hole, Folding the right back of the left round tube hole of substrate has a vertical left rectangular opening, folds close-fitting in the left rectangular opening of substrate and fills in left flat Pin, the front left side twist-on left semicircle hook bolt of left flat pin, folding groove left back on the right of substrate has a vertical right round tube hole, folding There is a vertical right rectangular opening left back of the right round tube hole of folded substrate, folds close-fitting in the right rectangular opening of substrate and fills in right flat pin, The forward right side twist-on right semi-circle hook bolt of right flat pin, folding the right rectangular opening rear of substrate has the vertical hole in a rear end, folds substrate A bearing is respectively inlayed in the top and bottom in the vertical hole in rear end, folds the left round tube hole of substrate and folds before the right round tube hole connection of substrate Fork, the left semicircle hook bolt interlocking that left lock-connecting piece can be with folding substrate, the right semi-circle hook bolt that right lock-connecting piece can be with folding substrate Keeper is connected to front fork revolver by interlocking, the right members interlocking that the left part part of upper lock-connecting piece can be with upper lock-connecting piece, two hands After the bottom of fork arm and the bottom of right wheel fork arm, left hand and right handgrip are folded, left hand is being caught in positioned at revolver fork arm Hand is in the C-shaped bayonet socket of keeper, and right handgrip is caught in C-shaped bayonet socket of the hand positioned at right wheel fork arm keeper, folds substrate Two bearings in the vertical hole in the right rear end to lock bolt with side arm by being connected；The front end of side arm be in groove profile, side arm groove profile it is upper Lower both sides have mutual to perforation, and the upper and lower of side arm rear end respectively has a cross-perforating, side arm groove profile it is mutual to being punched through Lock bolt is connected with folding the endoporus of two bearings in the vertical hole in rear end on the right of substrate；The front end of central sill is connected with side arm, central sill Rear end connect part with central sill and vehicle seat is connected, central sill connects part and is made up of middle even part and shock-absorbing part, and shock-absorbing part is connect by shock resistance block and bullet Part is constituted, and the back upper place of middle even part, which has, four transverse holes in the middle part of a transverse holes, middle even part, the middle part of middle even part is also provided with one and indulged To elongated hole and two longitudinally connected holes, there is a Five-way tube corresponding aperture back lower place of middle even part, and middle even part is connected into central sill rear end Left side, shock-absorbing part is connected to the rear in the middle part of middle even part, tows wheel and is connected in the middle even transverse holes of part back upper place；Afterwards fork by Five-way tube, two Five-way tubes connect part, two dropout and shock-absorbing catch and constituted, and Five-way tube is penetrated in the Five-way tube corresponding aperture of middle even part In, the front portion that two Five-way tubes connect part is connected to the two ends of Five-way tube, and the rear end that two Five-way tubes connect part is connected with two dropout, shock-absorbing Catch is connected to two Five-way tubes and connects the anterior top of part, and shock-absorbing catch mutually leans on shock-absorbing part and produces shock-proof effect, rear fork energy Folded using Five-way tube as axle center to inferoanterior；The rear end thereof of the seat pipe of vehicle seat and central sill is connected, the connecting rod of vehicle seat and vehicle seat Seat pipe and side arm rotate connection, and front-wheel is installed on front fork, and trailing wheel is installed on two dropout；Drive 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 two ends of axis, and chain wheel is fixed It is connected on the crank on the right of two cranks, flywheel is connected to trailing wheel, chain is wire-wrapped on chain wheel and flywheel.

2. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：Under the left hand handle Hold to the hole heart extended line of perforation with the right-angle bending of the left hand handle in the 45 ° of angles overlooked, the left hand is lower end to wearing A screwed hole is provided with above hole, the lower end of the right handgrip is to the hole heart extended line of perforation and the right-angle bending of the right handgrip In 45 ° of angles of vertical view, the right handgrip lower end is to being provided with a screwed hole above perforation.

3. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：Described upper lock-connecting piece Including left part part and right members, the left end of the left part part has vertical hole of cracking, and the right part of the left part part is in the right The cylinder of stretching, extension, the right-hand member of the left part part cylinder, which has on convex shoulder to the right, the left part part convex shoulder, external screw thread, described Right members are by connecting seat and screw set and constitute, the right-hand member of connecting seat has a vertical hole of cracking, and connecting seat left part is in the left The circular bar shape of stretching, extension, the left end of connecting seat circular bar shape has axial screwed hole, and screwing the left end of set has a counterbore, screws the heavy of set Internal thread is carried in hole, the round tube hole for screwing set axial direction is socketed in the circular bar shape of the stretching, extension of connecting seat to the left, screws the band of set Female counterbore can be pinned with the external screw thread twist-on on the left part part convex shoulder.

4. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：Described left interlocking Part, including left interlocking seat, left interlocking hook, left bolt and left interlocking spring, described right lock-connecting piece, including right interlocking seat, A slotted hole, the left lock are provided with the middle part of right interlocking hook, right bolt and right interlocking spring, the left interlocking hook lock neck of hook It is that the right rear end below cast portion, the left interlocking hook is in downward hook-type to connect the left front end below hook, the left interlocking hook Cast portion to lock bolt with mutual being rotated to perforation of the left vertical groove profile of interlocking seat by being connected, the right interlocking hook lock hook It is left back below cast portion, the right interlocking hook that the right front ends below a slotted hole, the right interlocking hook are provided with the middle part of handle End is in downward hook-type.

5. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：Described folding substrate Also include left flat pin, right flat pin, left semicircle hook bolt and right semi-circle hook bolt, the folding substrate left side groove lower end Both sides are provided with mutual to perforation, and the both sides for folding groove lower end on the right of substrate are provided with mutual to perforation, and the hand is fixed There is a vertical hole of cracking the rear end of position part, and there is the C-shaped bayonet socket of the opening of a vertical view forward the front end of keeper by the hand.

6. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：On after the middle even part Having in the middle part of Fang Youyi transverse holes, the middle even part in the middle part of four cross-perforatings, the middle even part has longitudinal slotted hole, described The slotted hole of middle even part longitudinal direction is connected with the cross-perforating of the rear corner in described middle even four cross-perforatings of part, the middle company There is the connecting hole of two longitudinal directions on part, the transverse direction of the middle even part back lower place has a Five-way tube corresponding aperture.

7. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：Described shock resistance block is By polyurethane into rectangular block shape shock resistance block, have a through hole and two connecting holes on described shock resistance block, the shock resistance block Connecting hole is the hole that counterbore is connected with perforating, and two connecting holes of the shock resistance block respectively pass through a pair of lock bolts and the middle even part The connecting hole connection of two longitudinal directions, described bullet fitting is a rod metalwork, and one of the bullet fitting is in cast, and the bullet connects The other end of part is that round bar forms the obtuse angle raised up by two bendings, and the cast of the bullet fitting is penetrated in the middle company In the slotted hole of part longitudinal direction, the cast for playing fitting be threaded into the middle even rear corner cross-perforating of part to lock bolt institute Connection, it is described play fitting rod penetrate in the through hole of the shock resistance block, and it is described bullet the bending of fitting two and form convex The obtuse angle risen be exposed to the rear of the shock resistance block, the bending of bullet fitting two and formed the obtuse angle that raises up can with it is described after The elongated hole interlocking of fork shock-absorbing catch.

8. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：The shock-absorbing catch There is an elongated hole in the middle part of both sides Ge Youyi holes, the shock-absorbing catch, described dropout upper edge and lower edge are in evagination respectively Semicircle it is tubular, described rear fork is after front is folded downwards, the anterior lower edge of the right dropout in the half of evagination Tubular, can be described with the c type grooves mouthful of fastener after the central sill, enabling described rear fork to be positioned with described central sill Afterwards after fork expansion, being connected to the shock-absorbing catch that Five-way tube described in two connects during the rod of part two cracks can be with described shock-absorbing part Lean, and the elongated hole of the shock-absorbing catch and the bullet bending of fitting two and to form the obtuse angle raised up corresponding and can lock Connect.

9. quick-folding handlebar drag type portable bicycle according to claim 1, it is characterized in that：Described vehicle seat includes Seat pipe, lock-connecting piece, connecting rod, saddle and folding positioning lock, described seat pipe are made up of rectangle seat pipe, upper plug member and circle saddle pipe, institute State close-fitting in the pore of rectangle seat pipe lower end and be socketed rectangular metal pipe, the rectangle seat pipe bottom is with being socketed rectangle gold therein Category pipe is together respectively provided with a cross-perforating in upper, middle and lower and is together provided with an elongated hole, the rectangle seat pipe bottom in trailing flank Lower cross-perforating by being connected to lock bolt and upper angle before the rear slotware left and right sides are mutual to perforation rotation, the rectangle seat The middle cross-perforating of pipe bottom is by the cast to lock-connecting piece hook-like part described in lock bolt connection, and described lock-connecting piece is by hook-type Part and extension spring are constituted, and hook-like part is the metal parts that front end is cast, rear end is hook-type, and the hook-type of hook-like part passes the rectangle There are a transverse holes, the horizontal hole position in the front of hook-like part hook-type in front of the elongated hole of seat pipe bottom trailing flank, hook-like part hook-type In in the pore of the rectangle seat pipe bottom, one end of extension spring is connected to the transverse holes of hook-like part, and one end of extension spring is connected to Penetrate in the lower cross-perforating of the rectangle seat pipe bottom to lock bolt, the hook-type of hook-like part can be with the presence of extension spring The upper edge interlocking of slotware trailing flank afterwards.

10. quick-folding handlebar drag type portable bicycle according to claim 9, it is characterized in that：Described folding is determined Position lock is made up of pedestal, circular hole plug, latching connector, spring and pull handle, after the front portion of pedestal is a vertical rectangle pore, pedestal Portion is in groove profile, and the groove profile of pedestal is stuck in the rectangle seat pipe top, and is positioned with to lock bolt twist-on, and pedestal rectangular opening lower end is consolidated There is the circular hole of a upward and downward a fixed circular hole plug, the centre of circular hole plug, and latching connector is made up of tapered end and locking bar, and tapered end is in upward lock There are transverse holes ligule, the lower section connection locking bar of tapered end, the lower end of locking bar, and locking bar penetrates the circular hole with circular hole plug upward and downward in spring In, and tapered end is slidably connected in the rectangle pore of pedestal, locking bar transverse holes connection pull handle, pull handle has pull handle bolt and two Plastics pull handle is constituted, when by described vehicle seat collapsed forward after, and the latching connector for folding positioning lock can be with preceding slotware backward Flanging interlocking.