CN206012830U - Stretching handle type quick-folding formula bicycle - Google Patents

Abstract

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

Description

Stretching handle type quick-folding formula bicycle

Technical field：

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

Technical background：

There are several money folding bicycles in the market, but due to reasons such as structure and constructions, the effect after folding is also not Too preferable.

Utility model content：

The purpose of this utility model is to provide for a kind of handlebar in the new type foldable mode of the handle type of stretching, vehicle seat fold with The mode that side arm linkage is folded, stretching handle type quick-folding formula bicycle of the front and back wheel in simultaneously row pattern after folding.This practicality New purpose is realized in；Stretching handle type quick-folding formula bicycle, including flexible handle, front fork stem, side arm, in Beam, rear fork, vehicle seat, front-wheel, trailing wheel, Rear frame and drive mechanism, is characterized in that：Flexible handle include left hand handle, right handgrip, Upper latch fitting, lower latch fitting and handle, left hand being to be formed as right-angle bending by the upper end of pipe with right handgrip, left hand handle and right handgrip Outside below at right-angle bending is provided with screwed hole, and upper latch fitting is made up of upper clamping piece, banking stop and clamping screw, and upper clamping piece is one The blank of aluminium extruded type, the left and right two ends of upper clamping piece respectively have the circular hole of a upward and downward, on the circular hole of two upward and downwards of upper clamping piece also Cracking for upward and downward is connected with, the left and right that upper clamping piece upward and downward cracks rearward is respectively provided with the screwed hole of a upward and downward, and upper clamping piece is upper and lower Bottom to the screwed hole of two upward and downward of left and right for cracking rearward passes through two bolt twist-ons, one banking stop, allows banking stop to be connected to The bottom side of folder, the centre of upper clamping piece have one to crack vertical longitudinal hole with upper clamping piece upward and downward, the rear end of upper clamping piece longitudinal hole Connect the stop nut of a clamping screw, left hand, and will in the circular hole that upper clamping piece or so two ends upward and downward is penetrated with right handgrip Left hand with right handgrip right-angle bending at below screwed hole corresponding to upper clamping piece bottom side, be screwed into left hand respectively with two bolts With right handgrip right-angle bending at below screwed hole in, by left hand spacing with what right handgrip and upper clamping piece were made to rotate, also, Be fastened to left hand with right handgrip on two bolts, coordinate with the banking stop of the bottom side for being connected to upper clamping piece, can be used as left hand handle Spacing when launching with right handgrip, clamping screw is penetrated in the longitudinal hole of upper clamping piece, and is screwed in stop nut, tightens locking Bolt can tighten up cracking for upper clamping piece upward and downward, and upper clamping piece is locked left hand handle and right handgrip so that left hand handle and right handgrip are solid Determine and can not rotate；Lower latch fitting is made up of lower clamping piece and clamping screw, and lower clamping piece is the blank of an aluminium extruded type, and lower clamping piece is anterior Left and right two ends respectively have the circular hole of a upward and downward, be connected with cracking for upward and downward on the circular hole of two anterior upward and downwards of lower clamping piece, under There is the circular hole of a upward and downward at the left back end of folder, and there is the circular hole of a upward and downward lower clamping piece rear end to the right, in lower clamping piece front portion Between have one to crack vertical longitudinal hole with lower clamping piece front portion upward and downward, the rear end of lower clamping piece longitudinal hole connects the anti-of a clamping screw Loose nut, in the middle part of lower clamping piece, the circular hole of left end upward and downward is connected with the upper end of front fork stem, and front fork stem is by pipe, cylinder and front axle structure Into, fill in cylinder in the bottom pore of pipe, the bottom of pipe to and have a cross-perforating, front axle to penetrate pipe together with cylinder In the cross-perforating of bottom and cylinder, and win to the right, left hand is the circle for penetrating lower clamping piece or so two ends upward and downward with right handgrip Kong Zhong, clamping screw are penetrated in the longitudinal hole of lower clamping piece, and are screwed in stop nut, are tightened clamping screw and can be tightened up lower clamping piece Lower clamping piece is locked left hand handle and right handgrip so that left hand handle and right handgrip are fixed and can not be slided up and down by cracking for upward and downward, Handle is connected to left hand the top with right handgrip, and the top positioned at upper clamping piece；Side arm by front-axle beam, front even part, rotary part, Interior chock and front slotware are constituted, and the left side of front-axle beam front end is filled in the pore of front-axle beam rear end with front even part riveting, interior chock close-fitting, Interior chock is bolted front slotware, and front slotware is the grooved part being open backwards, the top and bottom of the front slotware left and right sides Respectively have mutual to perforation, rotary part is installed on the upward and downward circular hole of rear end on the right of lower clamping piece, the both sides up and down of front even part Have mutual to perforation, front even part mutual to being punched through to locking bolt connection rotary part, flute profile of front slotware or so two Respectively having up and down for side is one mutual to perforation；Central sill includes beam pipe, front interior plug, rear interior plug, rear slotware and five-way tubing, Liang Guanyou Level metal rectangular pipe is made, interior plug before close-fitting is filled in the pore of beam pipe front end, interior plug after close-fitting is filled in the pore of beam pipe rear end, Interior plug respectively has the part of a vertical screwed hole before and after being afterwards, respectively has a hole before and after the bottom side of beam pipe rear end, beam pipe rear end bottom side Front and rear gaps are corresponding with the vertical screwed hole before and after rear interior plug, and five-way tubing is by the vertical screw thread before and after two bolts and rear interior plug Twist-on is fixed in hole, and front interior in the forward lower comer of beam pipe and beam pipe front end pore is plugged with horizontal perforation, the left and right two of beam pipe rear end The rear interior plug that side is inconjunction with the pore of beam pipe rear end is provided with several cross-perforatings together, and rear slotware is the groove being open forward Type part, the anterior angle of the rear slotware top left and right sides have the mutual both sides to perforation, rear slotware bottom or so be provided with several mutually To perforation, the both sides of rear slotware bottom or so are several mutual to, beam corresponding with several cross-perforatings of beam pipe rear end of boring a hole Perforation is rotated mutual with front slotware left and right sides lower end to lock bolt that be punched through that the forward lower comer of pipe is horizontal is connected；Back vent Part is made up of two dropout, and the leading section of dropout is in two wavy bendings, and the side of dropout front end has and rear slotware bottom There is opening U-shaped gap backward in several mutual holes corresponding to perforation, the rear end of dropout, and two dropout are in symmetry shape, Two dropout are connected with the rear end of rear slotware and beam pipe to locking bolt by several；Vehicle seat includes seat pipe, lock-connecting piece, connecting rod, saddle Seat and folding location hook, seat pipe are made up of rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe, and rectangle seat pipe is by a rectangular tube Lateral bend is formed to the left for upper end, rectangle seat pipe lower end is respectively provided with a cross-perforating, the trailing flank of rectangle seat pipe lower end up and down An elongated hole is provided with, close-fitting fills in plug member in the pore of rectangle seat pipe upper end, and close-fitting is filled in down in the pore of rectangle seat pipe lower end Plug member, and the cross-perforating for making lower plug member upper and lower is corresponding to the upper and lower cross-perforating in rectangle seat pipe lower end, makes lower plug member backward Elongated hole of the fluting corresponding to the rear side of rectangle seat pipe lower end, circle saddle pipe are fixedly connected with upper plug member by two bolts, seat pipe lower end Lower cross-perforating by being connected to locking bolt perforation is rotated mutual with upper angle before the rear slotware left and right sides, under rectangle seat pipe It is slidably connected lock-connecting piece in the elongated hole of end trailing flank and in lower plug member fluting backward, lock-connecting piece can be upper with rear slotware trailing flank Edge interlocking, the upper cross-perforating of seat pipe lower end rotate the rear end of connection connecting rod, and connecting rod is by the rear and front end of a metal round steel Be pressed into the part of right-angle bending, before and after connecting rod, at the two-end-point of right-angle bending, be respectively provided with a screwed hole, the front end of connecting rod with front Even the cross-perforating above part rear end rotates connection, and saddle is connected on round saddle pipe, folds location hook and is connected to beam pipe front end Right flank；Front-wheel is installed on front axle, and trailing wheel is installed on rear fork, and Rear frame is connected to the bottom of rear slotware and the two of rear axle End, two rear ends of Rear frame also include two and tow wheel, open lock-connecting piece, and by vehicle seat collapsed forward, in the presence of connecting rod, Vehicle seat is inconjunction with side arm, flexible handle, front fork stem and front-wheel and folds to the lower section of central sill together, and is in simultaneously by front-wheel and trailing wheel Row pattern, reaches perfect folding effect, and in the presence of location hook seat pipe is folded, by vehicle seat, side arm, flexible handle, front fork Bar and central sill are fixed on folded state together, tow wheel by two and are placed in ground, and holding handle can tow the car；Drive mechanism bag Axis, two cranks, chain wheel, two pedals, flywheel and chain is included, central axis are connected in Five-way tube, and two cranks are installed on axis Two ends, chain wheel is fixedly connected on the crank on the right of two cranks, and flywheel is connected to the right side of trailing wheel, chain be wire-wrapped in chain wheel and On flywheel.

The beneficial effects of the utility model are：Ingenious cooperation of this utility model by profile piece so that whole vehicle frame is all Without electric welding, a kind of new trend of the manufacturing process of bicycle is represented；Handlebar of the present utility model is using flexible handle Form so that the folding of handlebar had reached both most simple, and reached most effective；Front fork stem is connected to the middle part on the right of lower clamping piece Upward and downward circular hole in, the upward and downward circular hole of the rear end on the right of lower clamping piece connection rotary part, front-wheel are located at position to the left, make Front-wheel after must folding can be located at the left side of trailing wheel, and with trailing wheel in simultaneously row pattern, this utility model is integrally felt more after folding Plus it is attractive in appearance；Cooperation of the front tumbler of the present utility model using side arm and the rotary part of the rear end being connected on the right of lower clamping piece, Plane bearing and shock-absorbing polyurethane cylinder is included in rotary part, makes front tumbler both simple and effectively and also with shock-absorbing Function；The lower cross-perforating of seat pipe lower end is rotated with rear slotware and is connected, and the upper cross-perforating of seat pipe lower end is turned with the rear end of connecting rod Dynamic connection so that linkage structure has also been accomplished ultimate attainment simple.

Description of the drawings：

Fig. 1 is this utility model structural representation；

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

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

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

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

In figure：1 flexible handle, 2 front fork stems, 3 side arms, 4 central sills, fork after 5,6 Vehicle seat, 71 front-wheels, 72 trailing wheels, 73 Rear frames, 8 drive mechanisms；The handle 1 that wherein stretches also includes： 11 left hand handles, 12 right handgrips, latch fitting on 13,14 times latch fittings, 15 handles；Vehicle seat 6 also includes：Car Seat 6 also includes：61 seat pipes, 62 lock-connecting pieces, 63 connecting rods, 64 saddles, 65 fold location hook.

Specific embodiment：

According to Fig. 1, described stretching handle type quick-folding formula bicycle, including flexible handle 1, front fork stem 2, side arm 3, in Beam 4, rear fork 5, vehicle seat 6, front-wheel 71, trailing wheel 72, Rear frame and drive mechanism system 8；

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

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

Described lower latch fitting 14 is made up of lower clamping piece and clamping screw, and described lower clamping piece is the blank of an aluminium extruded type, Respectively there is the circular hole of a upward and downward at the anterior left and right two ends of the lower clamping piece, on the circular hole of two anterior upward and downwards of the lower clamping piece also Cracking for upward and downward is connected with, the left back end of the lower clamping piece has the circular hole of a upward and downward, lower clamping piece rear end to the right to have one The circular hole of upward and downward, the upward and downward circular hole at the left back end of the lower clamping piece are corresponding with the pipe close-fitting of the front fork stem 2, described before Fork arm 2 is made up of pipe, cylinder and front axle, fills in cylinder in the bottom pore of pipe, the bottom of pipe to and have together with cylinder One cross-perforating, front axle penetrate in the bottom of pipe and the cross-perforating of cylinder and win to the right, the left back end of the lower clamping piece Upward and downward circular hole is socketed with the upper end close-fitting of 2 pipe of the front fork stem, and the centre of the lower clamping piece has one with lower clamping piece upward and downward Crack vertical longitudinal hole, and the rear end of the lower clamping piece longitudinal hole is connected with the stop nut of clamping screw described in, a described left side Handle 11 and described right handgrip 12 penetrate in the circular hole of described lower clamping piece or so two ends upward and downward, described clamping screw is penetrated In the longitudinal hole of the lower clamping piece, and it is screwed in stop nut, tightens the clamping screw and can tighten up lower clamping piece upward and downward Crack, by left hand described for described lower clamping piece locking 11 and described right handgrip 12 so that described left hand is 11 and institute The right handgrip 12 that states is fixed and can not be slided up and down.

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

Described side arm 3 includes front-axle beam, front even part, rotary part, interior chock and front slotware, and described front-axle beam is by rectangular tube Make, on the left of the front-axle beam front end, have several riveted holes, described before connect the stamping parts that part is upward and downward left folding side, described before Even the front end on part upward and downward left folding side have mutual to perforation, described before connect The corresponding hole in hole, described before connect the several riveted holes rivetings of several holes of part by rivet and the front-axle beam front end, described rotation Rotation member includes front axle tube, two zanjon bearings, a plane bearing and has a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore The counterbore of placing zanjon bearing, the upward and downward circle of the rear end front axle tube from bottom to top close-fitting press-in lower clamping piece on the right of are respectively milled with Kong Zhong, two zanjon bearings are embedded in the counterbore of front axle tube upper and lower side respectively, and plane bearing is lining in the zanjon of the front axle tube upper end On bearing, then shock-absorbing polyurethane cylinder is put on plane bearing, there is a hole axial direction of shock-absorbing polyurethane cylinder, and deep by two The hole of the endoporus of ditch bearing, the axis hole of plane bearing and shock-absorbing polyurethane cylinder, corresponding to connecting part front end grooved upper and lower two before described Side mutual to perforation, with to lock bolt by described rotatable parts with described before connect part front end mutual to perforation be connected, Described interior chock close-fitting is filled in the pore of the front-axle beam rear end, and described interior chock is by the rectangle for respectively having a circular hole up and down The cutting off processing part of Al squeezing material, tapped in two circular holes up and down of the interior chock, described interior chock and the front-axle beam Rear end horizontal between also positioned with pin, described interior chock by the front slotware described in two bolt connections, described before Slotware is to strike out opening grooved part backwards by sheet metal, the lower end of the front slotware left and right sides have mutual to perforation, The front slotware front bottom surface respectively has a hole up and down.

Described central sill 4 includes beam pipe, front interior plug, rear interior plug, rear slotware and five-way tubing, and described beam pipe is by metal square Shape pipe is made, and in the pore of the beam pipe front end, close-fitting fills in described front interior plug, close-fitting plug in the pore of the beam pipe rear end Enter described rear interior plug, described rear interior plug be by the cutting off processing part of the rectangular aluminium section bar for respectively having a vertical circular hole in front and back, Tapped in the two vertical circular holes in front and back of plug in after described, respectively there are a hole, the beam pipe before and after the beam pipe rear end bottom side The front and rear gaps of rear end bottom side are corresponding with the vertical screwed hole before and after the rear interior plug, and it is vertical that the rear interior trailing flank that fills in is provided with one To screwed hole, described five-way tubing is that the lower end of the five-way tubing has horizontal by the cutting off processing part of Al squeezing material Five-way tube hole, the two vertical holes for respectively having a vertical hole, described five-way tubing before and after the upper surface of the five-way tubing pass through Vertical screwed hole before and after two bolts, with the rear interior plug fixes twist-on, the forward lower comer of the beam pipe and the beam pipe front tube Described front interior in hole is plugged with horizontal perforation, and the left and right sides of the beam pipe rear end is inconjunction with the pipe positioned at the beam pipe rear end In after described in hole, plug is provided with several cross-perforatings together, and described rear slotware is the grooved part being open forward, the pit It is several mutual to wearing that the anterior angle of the part top left and right sides has the mutual both sides to perforation, described rear slotware bottom or so to be provided with The both sides of hole, the rear slotware bottom or so are several mutual corresponding with several cross-perforatings of the beam pipe rear end to boring a hole, The trailing flank of the rear slotware bottom has a hole, the hole in the rear slotware lower rearward side face and the rear interior trailing flank longitudinal direction that fills in Screwed hole corresponding, what the forward lower comer of the beam pipe was horizontal is punched through to locking bolt and the front slotware left and right sides lower end Mutual rotates connection to perforation.

Described rear fork 5 is made up of two dropout, and the leading section of described dropout is in two wavy bendings, described after There are the mutual holes corresponding to perforation several with the rear slotware bottom side of forks piece front end, and the rear end of the dropout has Opening U-shaped gap backward, the dropout described in two are in symmetry shape, and the dropout described in two is by several to locking bolt and pit Part is fixedly connected with the rear end of beam pipe.

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

Described front-wheel 71 is 16 inches of wheel, and described front-wheel 71 is installed on described front axle, described trailing wheel 72 It is 16 inches to take turns, described trailing wheel 72 is installed in the U-shaped gap being open backward of dropout described in two, pushes dead bolt aside upwards, And by described 6 collapsed forward of vehicle seat, in the presence of the connecting rod 63, described vehicle seat 6 is inconjunction with described side arm 3, institute Flexible handle 1, described front fork stem 2 and the described front-wheel 71 that states is folded to the lower section of the central sill 4 together, and will be described Front-wheel 71 is with trailing wheel 72 in simultaneously row pattern so that this utility model after folding is more complete effective, and in the folding location hook In the presence of seat pipe 6 described in 65 clasp joints, by described side arm 3, described flexible handle 1, described front fork stem 2 and described in Beam 4 is fixed on folded state together.

Described Rear frame 73 tows wheel by round metal rod member and two and constitutes, and round metal rod member is welded by metal round rod bending Form, the front end of round metal rod member is fixed on by bolt twist-on in the screwed hole of the trailing flank longitudinal direction of the rear interior plug, metal Two lower ends of round bar part are connected to the two ends of 72 wheel shaft of the trailing wheel, and there is horizontal rod round metal rod member back, and horizontal rod is left The end points at right two ends has horizontal screwed hole, tows the PU wheels that wheel is plastic wheel hub, and the centre of PU wheels two sides respectively inlays one deeply Ditch ball bearing, is also lined with a lining ring between two deep groove ball bearings of PU wheels, and two tow wheel, and to be socketed on round metal rod member respectively horizontal The left and right two ends of rod, and positioning in the screwed hole at horizontal rod or so two ends is fastened to two bolts.

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

Claims (10)

1. a kind of stretching handle type quick-folding formula bicycle, including flexible handle, front fork stem, side arm, central sill, rear fork, vehicle seat, Front-wheel, trailing wheel, Rear frame and drive mechanism, is characterized in that：Flexible handle include left hand handle, right handgrip, upper latch fitting, lower latch fitting and Handle, left hand being to be formed as right-angle bending by the upper end of pipe with right handgrip, at left hand handle and right handgrip right-angle bending below Outside be provided with screwed hole, upper latch fitting is made up of upper clamping piece, banking stop and clamping screw, and the left and right two ends of upper clamping piece respectively have on one Lower to circular hole, be also connected with cracking for upward and downward on the circular hole of two upward and downwards of upper clamping piece, upper clamping piece upward and downward cracks rearward Left and right is respectively provided with the screwed hole of a upward and downward, and the bottom of the screwed hole of two upward and downward of left and right that upper clamping piece upward and downward cracks rearward leads to Two bolt twist-ons, one banking stop is crossed, allows banking stop to be connected to the bottom side of upper clamping piece, the centre of upper clamping piece has one upper and lower with upper clamping piece To the vertical longitudinal hole that cracks, the rear end of upper clamping piece longitudinal hole connects the stop nut of a clamping screw, left hand handle and right handgrip Penetrate in the circular hole of upper clamping piece or so two ends upward and downward, and by left hand with right handgrip right-angle bending at below screwed hole corresponding In the bottom side of upper clamping piece, with two bolts be screwed into respectively left hand with right handgrip right-angle bending at below screwed hole in, by a left side Handle spacing with what right handgrip and upper clamping piece were made to rotate, clamping screw is penetrated in the longitudinal hole of upper clamping piece, and is screwed into locking spiral shell In mother, tighten clamping screw and can tighten up cracking for upper clamping piece upward and downward；Lower latch fitting is made up of lower clamping piece and clamping screw, lower clamping piece Respectively there is the circular hole of a upward and downward at anterior left and right two ends, are connected with opening for upward and downward on the circular hole of two anterior upward and downwards of lower clamping piece Seam, the left back end of lower clamping piece have the circular hole of a upward and downward, lower clamping piece rear end to the right to have the circular hole of a upward and downward, and lower clamping piece is anterior Centre have one to crack vertical longitudinal hole with lower clamping piece front portion upward and downward, the rear end of lower clamping piece longitudinal hole connects a clamping screw Stop nut, in the middle part of lower clamping piece, the circular hole of left end upward and downward is connected with the upper end of front fork stem, and front fork stem is by pipe, cylinder and front Axle is constituted, and fills in cylinder in the bottom pore of pipe, the bottom of pipe to and have a cross-perforating, front axle to penetrate circle together with cylinder In the cross-perforating of the bottom of pipe and cylinder, and win to the right, left hand handle and right handgrip penetrate lower clamping piece or so two ends upward and downward Circular hole in, clamping screw is penetrated in the longitudinal hole of lower clamping piece, and is screwed in stop nut, is tightened clamping screw and can be tightened up down Cracking for folder upward and downward, shakes hands to be connected to left hand the top with right handgrip, and the top positioned at upper clamping piece；Side arm is by front Beam, front even part, rotary part, interior chock and front slotware are constituted, and the left side of front-axle beam front end and front even part are riveted, interior chock close-fitting plug Enter in the pore of front-axle beam rear end, interior chock is bolted front slotware, front slotware is the grooved part being open backwards, front slotware is left The top and bottom of right both sides respectively have mutual to perforation, and rotary part is installed on the upward and downward circular hole of rear end on the right of lower clamping piece On, the both sides up and down of front even part have mutual to perforation, front even part mutual to being punched through to locking bolt connection rotary part, Respectively having up and down for the flute profile left and right sides of front slotware is one mutual to perforation；Central sill includes beam pipe, front interior plug, rear interior plug, pit Part and five-way tubing, beam pipe are made up of level metal rectangular pipe, interior plug, the pipe of beam pipe rear end before in the pore of beam pipe front end, close-fitting is filled in Plug in after close-fitting is filled in hole, interior plug is the part for respectively having a vertical screwed hole in front and back afterwards, respectively has before and after the bottom side of beam pipe rear end One hole, the front and rear gaps of beam pipe rear end bottom side are corresponding with the vertical screwed hole before and after rear interior plug, five-way tubing by two bolts with Vertical screwed hole before and after interior plug fixes twist-on afterwards, and front interior in the forward lower comer of beam pipe and beam pipe front end pore is plugged with horizontal wearing Hole, the rear interior plug that the left and right sides of beam pipe rear end is inconjunction with the pore of beam pipe rear end are provided with several cross-perforatings together, Slotware is the grooved part being open forward afterwards, and the anterior angle of the rear slotware top left and right sides has mutual to perforation, and rear slotware bottom is left It is several mutual to perforation and beam pipe rear end that right both sides are provided with several mutual both sides to perforation, rear slotware bottom or so Several cross-perforatings are corresponding, and being punched through that the forward lower comer of beam pipe is horizontal is mutual with front slotware left and right sides lower end to locking bolt Connection is rotated to perforation；Fork is made up of two dropout afterwards, and the leading section of dropout is in two wavy bendings, dropout front end There is opening U-shaped gap backward the rear end that there is the mutual holes corresponding to perforation several with rear slotware bottom, dropout side, In symmetry shape, two dropout are connected with the rear end of rear slotware and beam pipe to locking bolt two dropout by several；Vehicle seat includes seat Pipe, lock-connecting piece, connecting rod, saddle and folding location hook, seat pipe are made up of rectangle seat pipe, upper plug member, lower plug member and circle saddle pipe, rectangle Seat pipe is that lateral bend is formed to the left by the upper end of a rectangular tube, and rectangle seat pipe lower end is respectively provided with a cross-perforating, rectangle up and down The trailing flank of seat pipe lower end is provided with an elongated hole, and in the pore of rectangle seat pipe upper end, close-fitting fills in plug member, rectangle seat pipe lower end In pore, close-fitting fills in lower plug member, and the cross-perforating for making lower plug member upper and lower is laterally worn corresponding to rectangle seat pipe lower end is upper and lower Hole, makes lower plug member fluting backward corresponding to the elongated hole of the rear side of rectangle seat pipe lower end, and circle saddle pipe is by two bolts and upper plug member It is fixedly connected, the lower cross-perforating of seat pipe lower end is by locking before bolt and the rear slotware left and right sides, upper angle is mutual to be turned to perforation Dynamic connection, be slidably connected in the elongated hole of rectangle seat pipe lower end trailing flank and in lower plug member fluting backward lock-connecting piece, 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 part of right-angle bending, is respectively provided with a screw thread before and after connecting rod at the two-end-point of right-angle bending Hole, the front end of connecting rod are rotated with the cross-perforating above front even part rear end and are connected, and saddle is connected on round saddle pipe, folds location hook It is connected to the right flank of beam pipe front end；Front-wheel is installed on front axle, and trailing wheel is installed on rear fork, and Rear frame is connected under rear slotware Portion and the two ends of rear axle, two rear ends of Rear frame also include two and tow wheel；Drive mechanism includes axis, two cranks, tooth Disk, two pedals, flywheel and chain, central axis are connected in Five-way tube, and two cranks are installed on the two ends of axis, and chain wheel is fixed and connected It is connected on the crank on the right of two cranks, flywheel is connected to the right side of trailing wheel, chain is wire-wrapped on chain wheel and flywheel.

2. stretching handle type quick-folding formula bicycle according to claim 1, is characterized in that：The left hand handle and the right side The screwed hole for handling corresponds respectively to the bottom side of the upper latch fitting upper clamping piece, the left hand handle and the right handgrip lower end side spiral shell After pit is screwed into bolt, can be as described left hand the limit slided up and down with the lower latch fitting lower clamping piece with described right handgrip Position, be connected to the banking stop of the upper clamping piece bottom side, be connected to the left hand with the right handgrip on two bolts Coordinate, can be as described left hand spacing when launching with described right handgrip.

3. stretching handle type quick-folding formula bicycle according to claim 1, is characterized in that：The upper clamping piece longitudinal hole Rear end is connected with a counterbore, inlays the stop nut of clamping screw described in, described clamping screw in the counterbore of the upper clamping piece By bolt and screw handle and be formed by connecting, described clamping screw also includes stop nut, behind the left back end of the lower clamping piece and the right side There is opening U-shaped opening backward between end, the width of the lower clamping piece U-shaped opening is corresponding with the width of the tire of trailing wheel.

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

5. stretching handle type quick-folding formula bicycle according to claim 1, is characterized in that：Described front-axle beam is by rectangular tube Make, on the left of the front-axle beam front end, have several riveted holes, described before connect the stamping parts that part is upward and downward left folding side, described before Even the front end on part upward and downward left folding side have mutual to perforation, described rotary part include front axle tube, two zanjon bearings, one Plane bearing and there is a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore is respectively milled with the counterbore for placing zanjon bearing, front axle tube Close-fitting is pressed in the upward and downward circular hole of the rear end on the right of the lower clamping piece from bottom to top, and two zanjon bearings are embedded in front axle tube respectively In the counterbore of 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 in On plane bearing, described interior chock is by the cutting off processing part of the rectangular aluminium section bar for respectively having a circular hole up and down, the interior plug Tapped in two circular holes up and down of block, the rear end of described interior chock and the front-axle beam horizontal between also with pin position, The front slotware front bottom surface respectively has a hole up and down.

6. stretching handle type quick-folding formula bicycle according to claim 1, is characterized in that：Described beam pipe is by metal square Shape pipe is made, described rear interior plug be by the cutting off processing part of the rectangular aluminium section bar for respectively having a vertical circular hole in front and back, described after Tapped in two vertical circular holes before and after interior plug, described after in the trailing flank of plug be provided with the screwed hole of a longitudinal direction, described five Way pipe fitting is that there are horizontal Five-way tube hole, the Five-way tube in the lower end of the five-way tubing by the cutting off processing part of Al squeezing material The trailing flank for respectively having a vertical hole, the rear slotware bottom before and after the upper surface of part has a hole, the rear slotware lower rearward side The hole in face is corresponding with the screwed hole of the trailing flank longitudinal direction of the rear interior plug.

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

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

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

10. stretching handle type quick-folding formula bicycle according to claim 1, is characterized in that：Described Rear frame is by gold Category round bar part and two tows wheel composition, and round metal rod member is welded by metal round rod bending, and the front end of round metal rod member passes through Bolt twist-on be fixed on described after in plug trailing flank longitudinal direction screwed hole in, two lower ends of round metal rod member be connected to described after There is a horizontal screwed hole at the two ends of wheel wheel shaft, the end points that there are horizontal rod, horizontal rod or so two ends round metal rod member back, and two The left and right two ends that wheel is socketed on round metal rod member transverse bar shape respectively are towed, and horizontal rod or so two ends are fastened to two bolts Screwed hole in position.