CN206938962U - Quick stretching handle drag type portable bicycle - Google Patents

Abstract

A kind of quick stretching handle drag type portable bicycle, including quick flexible handle, front fork, side arm, central sill, central sill connects part, tow wheel, fork afterwards, vehicle seat, front-wheel, trailing wheel and drive mechanism, fast flexible handle is by left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle are formed by connecting, lower latch fitting is connected with front fork and side arm, central sill and side arm, vehicle seat connects part with central sill and connected, 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 stretching handle drag type portable bicycle

Technical field

A kind of folding portable bicycle is the utility model is related to, more particularly to a kind of using Five-way tube as rotating shaft --- Quick stretching handle drag type portable bicycle.

Background technology

Have several money folding bicycles in the market, although there is the fast folding bicycle of folding rate, 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 a manner of the new type foldable for the handle type that fast stretches, rear fork With being folded by rotating shaft forward downward of Five-way tube, vehicle seat folds with side arm folding linkage, be able to can reach after having folded sufficiently small --- quick stretching handle drag type portable bicycle.What the purpose of this utility model was realized in；Quick stretching handle tows Formula portable bicycle, including fast flexible handle, front fork, side arm, central sill, central sill connect part, tow wheel, be rear fork, vehicle seat, preceding Wheel, trailing wheel and drive mechanism, it is characterized in that：Fast flexible handle includes left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle, Left hand is being to be formed by the upper end of pipe as right-angle bending with right handgrip, and left hand with the lower section at right handgrip right-angle bending respectively opening There is screwed hole, the side with right handgrip bottom is respectively provided with screwed hole by left hand, and upper latch fitting is made up of upper clamping piece and upper Quick Release, upper folder Respectively there is a circular hole that cracks of a upward and downward left and right ends of part, and upper clamping piece left and right ends are cracked the cracking towards front of circular hole, upper folder There is a left lug forward in the crack left side of cracking of circular hole of part left end, and the crack right side of cracking of circular hole of upper clamping piece right-hand member has one forward Right lug, have a projection forward in the middle part of upper clamping piece, have between the left lug, projection and right lug of upper clamping piece one mutual Cross-perforating, upper Quick Release are installed in the mutual cross-perforating of left lug, projection and right lug of upper clamping piece, left hand handle and the right hand Penetrating in the circular hole of upper clamping piece left and right ends upward and downward, and by left hand with right handgrip right-angle bending below screwed hole pair Should in the bottom side of upper clamping piece, with two bolts be screwed into respectively left hand with right handgrip right-angle bending below screwed hole in, will Left hand is spacing making to rotate with right handgrip and upper clamping piece, and upper Quick Release can tighten up opening for crack circular hole and the right-hand member of upper clamping piece left end Circular hole is stitched, the left hand handle in upper clamping piece and right handgrip are fixed；Lower latch fitting is made up of lower clamping piece and lower Quick Release, the lower clamping piece left side Respectively there is a circular hole that cracks of a upward and downward anterior and the right front portion, and lower clamping piece left side front portion is cracked the cracking towards front of circular hole, The anterior circular hole that cracks cracks towards front on the right of lower clamping piece, and the crack left side of cracking of circular hole of lower clamping piece left side front portion has one forward Left lug, there is a right lug forward on the right side of cracking of the anterior circular hole that cracks on the right of lower clamping piece, and the anterior centre of lower clamping piece has One projection forward, between the left lug, projection and right lug of lower clamping piece, there are a mutual cross-perforating, the lower clamping piece left side Rear portion have the circular hole of a upward and downward, there is a circular hole of a upward and downward at the middle part on the right of lower clamping piece, and the rear portion on the right of lower clamping piece has one The circular hole of upward and downward is connected with front fork in the middle part of the circular hole that cracks of upward and downward, the circular hole of lower clamping piece left side rear portion upward and downward and the right, Left hand is screwed into left hand respectively being penetrated with right handgrip in the anterior circular hole with the right front portion upward and downward in the lower clamping piece left side with two bolts In the screwed hole with right handgrip bottom, the mutual transverse direction of left lug, projection and right lug that lower Quick Release is installed on lower clamping piece is worn Kong Zhong, lower Quick Release can tighten up the circular hole that cracks of crack circular hole and the right-hand member of lower clamping piece left end, by the left hand handle in lower clamping piece and the right side Hand handle is fixed, and handle is connected to left hand the top with right handgrip, and positioned at the top of upper clamping piece；Side arm is by rotary part with before Even part is formed, and the upward and downward that rotary part is installed on rear portion on the right of lower clamping piece cracks in circular hole, and the front end of preceding even part is in groove profile, preceding Even the both sides up and down of part groove profile have mutual to perforation, and the upper and lower of preceding even part rear end respectively has a cross-perforating, preceding to connect part groove profile It is mutual to being punched through to locking bolt connection rotary part；The front end of central sill is connected with before connecting part, the rear end of central sill and central sill Even part connects with vehicle seat, and 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, middle even part Back upper place have a transverse holes, middle even have four transverse holes in the middle part of part, the middle part of middle even part is also provided with a longitudinal elongated hole and two vertical To connecting hole, there is a Five-way tube corresponding aperture back lower place of middle even part, and middle even part is connected to the left side of central sill rear end, and shock-absorbing part connects Rear in the middle part of the company's of being connected to part, tow wheel and be connected in the middle even transverse holes of part back upper place；Fork is led to by Five-way tube, two 5 afterwards Pipe connects part, two dropout and shock-absorbing catch and formed, and Five-way tube is penetrated in the middle even Five-way tube corresponding aperture of part, and two Five-way tubes connect part Front portion be connected to the both 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 5 Siphunculus connects the anterior top of part, and shock-absorbing catch mutually leans on shock-absorbing part and produces shock-proof effect, and rear fork can be using Five-way tube as axle center Folded to inferoanterior；The seat pipe of vehicle seat and the rear end thereof of central sill connect, and the connecting rod of vehicle seat and the seat pipe of vehicle seat and side arm rotate Connection, front-wheel are installed on front fork, and trailing wheel is installed on two dropout, and by vehicle seat collapsed forward, vehicle seat is inconjunction with side arm, fast stretched Handle, front fork and front-wheel fold to the lower section of central sill together；Drive mechanism includes axis, two cranks, chain wheel, two pedals, flywheel And chain, central axis are connected in Five-way tube, two cranks are installed on the both ends of axis, and chain wheel is fixedly connected on the right of two cranks Crank on, flywheel is connected to trailing wheel, and 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, represent a kind of new trend of the manufacturing process of bicycle；Handlebar of the present utility model is using quick-expansion handle Form so that the folding of handlebar reaches both most simple, and reaches most effective；Front fork is connected to lower clamping piece, on the right of lower clamping piece after The upward and downward in portion, which cracks, connects rotary part in circular hole, and central sill is located at position to the right so that under the trailing wheel after folding can be located at Opening in shelves between folder two front fork stems of connection, has accomplished the utility model after folding ultimate attainmently compact；Central sill connects part profit With the comprehensive elastic feature of polyurethane, the elongated hole interlocking of fitting and shock-absorbing substrate will be played so that play fitting and shock-absorbing substrate After clasping, the elastic force of polyurethane is enough the gravity downward more than back vent and trailing wheel by fitting and shock-absorbing substrate latching force is played, so as to Eliminate the complex way of positioning lock interlocking；Part rotation connection Five-way tube is connected using central sill, what Five-way tube was connected with rear fork again Mode so that fork can connect part folding, and the effect with rear shock-absorbing with central sill after of the present utility model；Installed using wheel is towed Connect the upper end of part in central sill so that the utility model can tow after folding, and after vehicle body folds, vehicle seat folds positioning lock and central sill The flanging interlocking of preceding slotware backward, can produce more effective locating effect.

Brief description of the drawings：

Fig. 1 is the utility model structure diagram；

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

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

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 --- flexible handle, 2 --- front fork, 3 --- side arm, 4 --- central sill, 51 --- central sill connects part, 52 --- tow wheel, 53 --- rear fork, 6 --- vehicle seat, 71 --- front-wheel, 72 --- trailing wheel, 8 --- drive mechanism；Wherein Flexible handle 1 also includes：11 --- left hand handle, 12 --- right handgrip, 13 --- upper latch fitting, 14 --- lower latch fitting, 15 --- draw Hand；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 stretching handle drag type portable bicycle, including flexible handle 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 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 by the upper end of pipe as right-angle bending 11 and described right handgrip 12, and the left hand is 11 and the right hand Side below at 12 right-angle bendings is respectively provided with a screwed hole, the left hand is each the side of 11 and the bottom of the right handgrip 12 It is provided with a screwed hole.

Described upper latch fitting 13 is made up of upper clamping piece and upper Quick Release, and described upper clamping piece is the blank of an aluminium extruded type, Can be that aluminium forges part or aluminium diecasting, respectively there are the circular hole that cracks of a upward and downward, the upper folder in the left and right ends of the upper clamping piece Part left and right ends are cracked the cracking towards front of circular hole, and there is a left side forward in the crack left side of cracking of circular hole of the upper clamping piece left end Lug, the left side of the left lug of upper clamping piece are in arc concave, and the crack right side of cracking of circular hole of the upper clamping piece right-hand member has one forward Right lug, have a projection forward, the left lug of the upper clamping piece, the projection of the upper clamping piece and institute in the middle part of the upper clamping piece Between the right lug for stating upper clamping piece, a mutual cross-perforating is provided with, the postmedian of the upper clamping piece bottom surface has one downward prominent Go out, the cross-perforating between the right lug of the left lug of the upper clamping piece, the projection of the upper clamping piece and the upper clamping piece is used for The described upper Quick Release of installation, described upper Quick Release include fast dismounting handle, circle hook bolt, arc spacer, two Quick Release springs, two nuts and C type fasteners, c type fasteners are made up of nylon, and there is the opening of a c shapes front end of c type fasteners, and there is connection the rear end of c type fasteners Hole, c type fasteners are bolted to the front of the upper clamping piece projection, and fast dismounting handle is one of a trigger piece and is connected with The part of two disks arranged side by side, there is mutual eccentric orfice on the disk arranged side by side of fast dismounting handle two, inclined on the disk of fast dismounting handle two Heart hole is rotatablely connected by the collar aperture of rivet and circle hook bolt, and arc spacer is pad made of nylon, the arc of arc spacer Corresponding with the arc concave on the left of the left lug of the upper clamping piece, circle hook bolt penetrates arc spacer, the upper clamping piece left lug In Kong Zhong, a Quick Release spring, in the hole of the upper clamping piece projection, another Quick Release spring neutralize the hole of the right lug of upper clamping piece In, two nuts are positioned to twisting, switching fast dismounting handle, the hole of cracking of the upper clamping piece left and right ends can be tightened up, by described upper folder The hole of cracking of part left and right ends, tighten up positioned at the upper clamping piece left end crack hole in the left hand 11 and on described Folder right-hand member is cracked the right handgrip 12 in hole, and the fast dismounting handle after interlocking is caught in the c shape openings of c type fasteners.

Described left hand penetrates 11 and described right handgrip in the collar aperture of the left and right ends in described handle 15, institute The handle 15 stated is a working of plastics, and the lower end of left and right two of the handle 15 is respectively connected with the collar aperture of a upward and downward, the handle 15 The aperture of two collar aperture is corresponding the external diameter of 11 and the right handgrip 12 with the left hand, and the top of the handle 15 is a handle Handle, two collar aperture of the handle 15, then will respectively positioned at the left hand 11 and the lower section in the knee of the right handgrip 12 Described left hand is penetrated in the circular hole that cracks of the upper clamping piece left end 11, and described right handgrip 12 is penetrated in the upper folder In the circular hole that cracks of part right-hand member, and the left hand corresponds to the screwed hole below at 11 and the right-angle bending of the right handgrip 12 The bottom side of the upper clamping piece, it is screwed into respectively described in the left hand neutralizes the screwed hole below at 11 right-angle bendings with two bolts In screwed hole below at the right-angle bending of right handgrip 12, the left hand is fastened in the screwed hole below at 11 right-angle bendings Bolt in bolt and the screwed hole being fastened to below at the right-angle bending of right handgrip 12, respectively positioned at the bottom of the upper clamping piece Side, when described left hand deploys 11 and described right handgrip 12, the left hand is fastened to below at 11 right-angle bendings Bolt in bolt in screwed hole and the screwed hole being fastened to below at the right-angle bending of right handgrip 12, with the upper clamping piece Being downwardly projected for the postmedian of bottom surface is construed as limiting.

Described lower latch fitting 14 is made up of lower clamping piece and lower Quick Release, and described lower clamping piece is the blank of an aluminium extruded type, Can be that aluminium forges part or aluminium diecasting, respectively there is the circle that cracks of a upward and downward front portion on the lower clamping piece left side and the front portion on the right Hole, lower clamping piece left side front portion are cracked the cracking towards front of circular hole, and the anterior circular hole that cracks cracks on the right of the lower clamping piece Towards front, there is a left lug forward in the crack left side of cracking of circular hole of lower clamping piece left side front portion, and the lower clamping piece left side is convex The left side of piece is in arc concave, and there is a right lug forward on the right side of cracking of the anterior circular hole that cracks on the right of the lower clamping piece, under described There are a projection forward, the left lug of the lower clamping piece, the projection of the lower clamping piece and the lower clamping piece in the anterior centre of folder Right lug between, be provided with a mutual cross-perforating, there is the circular hole of a upward and downward at the rear portion on the lower clamping piece left side, under described There are the circular hole of a upward and downward, the circular hole of described lower clamping piece the right middle part upward and downward and the lower clamping piece left side in middle part on the right of folder For the circular hole of rear portion upward and downward in laterally corresponding to, there are the circular hole that cracks of a upward and downward, the lower folder in the rear portion on the right of the lower clamping piece Rear portion is cracked the cracking towards rear of circular hole on the right of part, the both sides that the lower clamping piece cracks towards rear, respectively there is a company backward Side, the Lian Bianshang of the lower clamping piece two backward, cross-perforating mutual upper and lower Ge Kai mono-, lower clamping piece left side rear portion upward and downward Circular hole and described the right in the middle part of upward and downward circular hole it is corresponding with two front fork stem close-fittings of the front fork 2, described front fork 2 is by two Front fork stem is formed, and described front fork stem is made up of metal circular tube, and the lower end of the front fork stem is in flattening shape, the front fork stem lower end Be provided with the gap of ∩ shapes at flattening, the upper ends of two front fork stems respectively with the circular hole of lower clamping piece left side rear portion upward and downward and The circular hole close-fitting socket of upward and downward in the middle part of described the right, and being reinforced with pin, the left lug of the lower clamping piece, the lower clamping piece Cross-perforating between projection and the right lug of the lower clamping piece is used to install described lower Quick Release, and described lower Quick Release includes fast Tear handle, circle hook bolt, arc spacer, two Quick Release springs, two nuts and c type fasteners, c type fasteners open to be made up of nylon, c type cards There is the opening of a c shapes front end of part, and there is connecting hole the rear end of c type fasteners, and c type fasteners are bolted to the lower clamping piece The front of projection, fast dismounting handle are the parts that one of a trigger piece is connected with two disks arranged side by side, the circle arranged side by side of fast dismounting handle two There is mutual eccentric orfice on piece, the collar aperture that the eccentric orfice on the disk of fast dismounting handle two passes through rivet and circle hook bolt is rotated and connected Connect, arc spacer is pad made of nylon, and the arc of arc spacer is relative with the arc concave on the left of the left lug of the lower clamping piece Should, circle hook bolt penetrate arc spacer, the left lug of the lower clamping piece hole in, in a Quick Release spring, the lower clamping piece projection Kong Zhong, another Quick Release spring are neutralized in the hole of the right lug of lower clamping piece, by two nuts to twisting positioning, switching fast dismounting handle, can be received Anterior hole of cracking, then receives described lower clamping piece on the right of the tight lower clamping piece left side anterior crack hole and the lower clamping piece Tightly positioned at the left hand that the lower clamping piece left end cracks in hole 11 and positioned at the lower clamping piece right-hand member crack hole in described in Right handgrip 12, the fast dismounting handle after interlocking are caught in the c shape openings of c type fasteners.

Described left hand is 11 and described right handgrip 12, then respectively penetrates the anterior circular hole that cracks in the lower clamping piece left side Neutralize in the circular hole that cracks anterior on the right of the lower clamping piece, screw thread of the left hand 11 bottom sides is screwed into respectively with two bolts Hole is neutralized in the screwed hole of the bottom side of right handgrip 12, is fastened to the left hand the spiral shell in the screwed hole of 11 bottom sides Bolt the crack circular hole anterior as the lower clamping piece left side to upper limit, be fastened to the screw thread of the bottom side of right handgrip 12 Bolt in hole, as the anterior circular hole that cracks on the right of the lower clamping piece to upper limit.

Described side arm 3 includes rotary part and before connects part, and described rotary part includes front axle tube and two zanjon axles Hold, each car of upper and lower side of front axle tube pore has the counterbore for placing zanjon bearing, and front axle tube penetrates rear portion on the right of the lower clamping piece Crack in circular hole, and respectively penetrated with two bolts in the two mutual cross-perforatings that the lower clamping piece two connects on side backward, mixed Two nuts are tightened, and front axle tube is fixed on the right of the lower clamping piece in the circular hole that cracks at rear portion, two zanjon bearings are inlayed respectively In the counterbore of front axle tube upper and lower side, then by the endoporus of two zanjon bearings correspond to it is described before connect two sides above and below the groove profile of part front end It is mutual to perforation, with to lock bolt by described rotary part with it is described before connect the groove profile of part and be connected, connecting part before described is The slice processing part or aluminium of aluminium extruded type forge part or aluminium diecasting, connect before described the front end of part in groove profile, rear end it is upper Respectively there is a horizontal perforation lower section, and the both sides up and down that part groove profile is connected before described are provided with mutual to perforation, and part groove profile is connected before described Both sides up and down it is rounded.

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 Workpiece, it is tapped in two circular holes up and down of interior chock before described, 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 of being open by sheet metal, and there is phase the lower end at left and right sides of the preceding slotware It is mutual that bottom surface respectively has a hole up and down after the preceding slotware, and there is flanging backward the upper end 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 interior chock twist-on fix, it is described At left and right sides of preceding slotware it is mutual to be punched through to lock bolt with it is described before the cross-perforating that connects below part rear end be rotatablely connected.

Described rear interior chock is pore of the interior chock from beam pipe rear end after described 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 the groove profile part facing forward that is open, the left and right sides on the rear slotware top by sheet metal Anterior angle have mutual to perforation, have four mutual cross-perforatings after described at left and right sides of slotware bottom, it is described after slotware Four mutual cross-perforatings, corresponding with four mutual cross-perforatings at the beam pipe rear portion, rear fastener is by nylon system Into having the notches of a c types below rear fastener, the connecting hole for having two upward and downwards in rear fastener c type groove mouths, 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, connects in described after part is cut into slices by Al squeezing material and reprocesses Into or aluminium forge part or aluminium diecasting, there are a transverse holes the middle even part back upper place, and described middle even have four in the middle part of part Cross-perforating, four cross-perforatings in the middle even part middle part are corresponding with described four mutual cross-perforatings in beam pipe rear end, institute Have longitudinal slotted hole in the middle part of the company's of stating part, the slotted hole of the middle even part longitudinal direction with described middle even four cross-perforatings of part The cross-perforating of rear corner be connected, the middle connecting holes for even also having two longitudinal directions on part, the horizontal stroke of the middle even part back lower place 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 made up of shock resistance block and bullet fitting, and described shock resistance block is made of polyurethane The shock resistance block of rectangular block shape, there is a through hole and two connecting holes on 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 play fitting one is in cast, and the other end for playing fitting is round Bar forms the obtuse angle to raise up by two bendings, and the cast for playing 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 to raise up and be exposed to The rear of the shock resistance block, it is described play obtuse angle that the bending of fitting two and being formed raises up can with it is described after the shock-absorbing catch of fork 53 Elongated hole interlocking.

Described tows wheel 52 by being formed to lock bolt, two bushing pipes and two tugboats, lock bolt is penetrated in two tugboats, two linings Pipe neutralizes 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 formed, and described five is logical Pipe is process 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 to crack between two vertical rod of part and connects the collar aperture of part cast with Five-way tube and connect, and described five is logical Pipe has longitudinal direction mutual to perforation between connecting two vertical rod of part, 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 two Five-way tubes connect the cast of the part left and right ends noose with the Five-way tube respectively, tighten Two Five-way tubes connect the part longitudinally mutual screw bolt and nut in perforation, and two Five-way tubes are connected into part 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, and respectively there is a hole on the both sides 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 two Five-way tubes 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 two Five-way tubes are connected into the left and right ends of part cast and the Five-way tube tightening up Shock-absorbing catch and two Five-way tubes connect 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, two dropout are symmetrical, and two dropout pass through several bolts and two Five-way tubes respectively Connect the rearward end connection of part, with the middle rear fork 53 connected after part is connected, the five of part can be connected with middle using Five-way tube as axle Siphunculus corresponding aperture rotatable engagement, described rear fork 53 is set to be folded to inferoanterior, described rear fork 53 folds to inferoanterior Afterwards, the semi-circle tubular in evagination of the right dropout front portion lower edge, can with the c type groove mouths of fastener after the central sill 4, Described rear fork 53 is positioned with described central sill 4, after the expansion of described rear fork 53, be connected to two Five-way tubes 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 to raise 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 form, described rectangle seat pipe be by a rectangular tube upper end 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 The cutting off processing part of the rectangular aluminium section bar in hole, it is tapped in 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 pin reinforcing together, and close-fitting socket rectangle is golden in the pore of the rectangle seat pipe lower end Category pipe, the rectangle seat pipe bottom are together respectively provided with a cross-perforating, simultaneously with being socketed rectangular metal pipe therein in upper, middle and lower An elongated hole is together provided with trailing flank, described circle saddle pipe is process by metal circular tube, the round saddle pipe rear end it is front and rear Respectively be provided with a radial direction is punched through two screwed holes of two bolts and the upper plug member to perforation, two couple of the round saddle pipe rear end 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 is rotatablely connected 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 are made up of hook-like part and extension spring, hook-like part be front end be cast, rear end be 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 The elongated hole in face, there are a transverse holes in front of 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 locking bolt, the hook-type of hook-like part in the presence of the extension spring can with it is described after on rear side of slotware The upper edge interlocking in face, the rear end of the connecting rod 63 penetrate in the upper cross-perforating of the seat pipe bottom, are used in combination from left to right 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 the part of right-angle bending, a screwed hole, the connecting rod 63 is respectively provided with the two-end-point of right-angle bending before and after the connecting rod 63 Front end penetrate from left to right in the preceding even cross-perforating above part rear end, 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 formed, 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 the lower section of tapered end connects locking bar, and there are transverse holes the lower end of locking bar, and locking bar penetrates 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 formed, 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 described in post-tensioning, the interlocking for folding positioning lock 65 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 both 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 both ends of the wheel shaft of trailing wheel 72 pass through spiral shell respectively Female cooperation, it is fixedly connected in the U-shaped gap of 53 liang of dropout of the 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 both ends of the axis, and described chain wheel is fixed It is connected on the right crank of two cranks, 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 (10)

1. a kind of quick stretching handle drag type portable bicycle, including fast flexible handle, 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：Fast flexible handle include left hand, it is right Hand handle, upper latch fitting, lower latch fitting and handle, left hand being to be formed by the upper end of pipe as right-angle bending with right handgrip, left hand handle and Lower section at right handgrip right-angle bending is respectively provided with screwed hole, and the side with right handgrip bottom is respectively provided with screwed hole, locked by left hand Part is made up of upper clamping piece and upper Quick Release, and respectively there are the circular hole that cracks of a upward and downward, upper clamping piece left and right ends in the left and right ends of upper clamping piece Crack the cracking towards front of circular hole, there is a left lug forward in the crack left side of cracking of circular hole of upper clamping piece left end, and upper clamping piece is right Holding the right side of cracking for the circular hole that cracks has a right lug forward, has a projection forward in the middle part of upper clamping piece, in the left convex of upper clamping piece There is a mutual cross-perforating between piece, projection and right lug, upper Quick Release is installed on the left lug, projection and right lug of upper clamping piece In mutual cross-perforating, left hand being penetrated with right handgrip in the circular hole of upper clamping piece left and right ends upward and downward, and by left hand handle and Screwed hole below at right handgrip right-angle bending corresponds to the bottom side of upper clamping piece, and left hand handle and the right hand are screwed into respectively with two bolts In the screwed hole below at right-angle bending, left hand is spacing making to rotate with right handgrip and upper clamping piece, and upper Quick Release can be tightened up The circular hole that cracks of crack circular hole and the right-hand member of upper clamping piece left end, the left hand handle in upper clamping piece and right handgrip are fixed；Lower latch fitting by Lower clamping piece and lower Quick Release are formed, the front portion on the lower clamping piece left side and the anterior circular hole that cracks for respectively having a upward and downward on the right, lower clamping piece Left side front portion is cracked the cracking towards front of circular hole, on the right of lower clamping piece the anterior circular hole that cracks crack it is left towards front, lower clamping piece There is a left lug forward in the crack left side of cracking of circular hole of side front portion, and the right side of cracking of the anterior circular hole that cracks has one on the right of lower clamping piece There is a projection forward right lug forward, the anterior centre of lower clamping piece, lower clamping piece left lug, projection and right lug it Between, there is a mutual cross-perforating, there is a circular hole of a upward and downward at the rear portion on the lower clamping piece left side, and the middle part on the right of lower clamping piece has on one It is lower to circular hole, there is a circular hole that cracks of a upward and downward at the rear portion on the right of lower clamping piece, the circular hole of lower clamping piece left side rear portion upward and downward and The circular hole of upward and downward is connected with front fork in the middle part of the right, and left hand handle and right handgrip penetrate lower clamping piece left side front portion and the right front portion up and down To circular hole in, be screwed into left hand respectively in the screwed hole with right handgrip bottom with two bolts, lower Quick Release is installed on lower clamping piece In left lug, projection and the mutual cross-perforating of right lug, lower Quick Release can tighten up crack circular hole and the right-hand member of lower clamping piece left end Cracked circular hole, and the left hand handle in lower clamping piece and right handgrip are fixed, and handle is connected to left hand the top with right handgrip, and is located at The top of upper clamping piece；Side arm is by rotary part and before connects part and forms, and rotary part is installed on the upward and downward at rear portion on the right of lower clamping piece Crack in circular hole, the front end of preceding even part be in groove profile, the both sides up and down of preceding even part groove profile have it is mutual to perforation, preceding even part rear end Upper and lower respectively has a cross-perforating, preceding even part groove profile it is mutual to being punched through to locking bolt connection rotary part；Before central sill End is connected with before connecting part, and rear end and the central sill of central sill connect part and vehicle seat is connected, and central sill connects part and is made up of middle company's part and shock-absorbing part, keeps away Shake part is made up of shock resistance block and bullet fitting, and there are a transverse holes back upper place of middle even part, middle even to have four transverse holes, middle company in the middle part of part The middle part of part is also provided with a longitudinal elongated hole and two longitudinally connected holes, and there is a Five-way tube corresponding aperture back lower place of middle even part, by middle company Part is connected to the left side of central sill rear end, and shock-absorbing part is connected to the middle even rear in the middle part of part, tows wheel and is connected to middle even part back upper place Transverse holes in；Fork connects part, two dropout and shock-absorbing catch by Five-way tube, two Five-way tubes and formed afterwards, and Five-way tube is penetrated in Even in the Five-way tube corresponding aperture of part, the front portion that two Five-way tubes connect part is connected to the both ends of Five-way tube, and two Five-way tubes connect the rear end of part It is connected with two dropout, shock-absorbing catch is connected to two Five-way tubes and connects the anterior top of part；The seat pipe of vehicle seat and the rear end of central sill turn Dynamic connection, the connecting rod of vehicle seat and the seat pipe of vehicle seat and side arm are rotatablely connected, and front-wheel is installed on front fork, and trailing wheel is installed on two back vents Piece；Drive mechanism includes axis, two cranks, chain wheel, two pedals, flywheel and chain, central axis and is connected in Five-way tube, and two is bent Handle is installed on the both ends of axis, and chain wheel is fixedly connected on the crank on the right of two cranks, and flywheel is connected to trailing wheel, and chain is wire-wrapped in On chain wheel and flywheel.

2. quick stretching handle drag type portable bicycle according to claim 1, it is characterized in that：The left lug of upper clamping piece Left side be in arc concave, the postmedian of the upper clamping piece bottom surface has a downward protrusion, and described upper Quick Release includes fast dismounting handle, circle Hook bolt, arc spacer, two Quick Release springs, two nuts and c type fasteners, the arc of arc spacer and the left lug of the upper clamping piece The arc concave in left side is corresponding, circle hook bolt penetrate arc spacer, the left lug of the upper clamping piece hole in, in a Quick Release spring, In the hole of the upper clamping piece projection, in the hole of another Quick Release spring neutralization right lug of upper clamping piece, by two nuts to twisting positioning, When described left hand is with described right handgrip expansion, the left hand is fastened in the screwed hole below at right-angle bending Bolt in bolt and the screwed hole being fastened to below at the right handgrip right-angle bending, the postmedian with the upper clamping piece bottom surface Be downwardly projected and be construed as limiting.

3. quick stretching handle drag type portable bicycle according to claim 1, it is characterized in that：The left lug of lower clamping piece Left side be in arc concave, rear portion is cracked the cracking towards rear of circular hole on the right of the lower clamping piece, and the lower clamping piece is opened towards rear , respectively there is a company side backward the both sides of seam, the Lian Bianshang of the lower clamping piece two backward, cross-perforating mutual upper and lower Ge Kai mono-, Described lower Quick Release includes fast dismounting handle, circle hook bolt, arc spacer, two Quick Release springs, two nuts and c type fasteners, arc spacer Arc it is corresponding with the arc concave on the left of the left lug of the lower clamping piece, it is left that circle hook bolt penetrates arc spacer, the lower clamping piece In the hole of lug, in a Quick Release spring, in the hole of the lower clamping piece projection, another Quick Release spring neutralize the right lug of lower clamping piece Hole in, by two nuts to twist positioning.

4. quick stretching handle drag type portable bicycle according to claim 3, it is characterized in that：Front axle tube penetrate it is described under On the right of folder in the circular hole that cracks at rear portion, and respectively penetrate the lower clamping piece two with two bolts and connect two mutual horizontal strokes on side backward Into perforation, mix two nuts and tighten, front axle tube is fixed on the right of the lower clamping piece in the circular hole that cracks at rear portion, with to locking spiral shell Bolt by described rotary part with it is described before connect the groove profile of part and be connected.

5. quick stretching handle drag type portable bicycle according to claim 1, it is characterized in that：Described central sill includes beam Pipe, preceding interior chock, it is rear in chock, preceding slotware, rear slotware and rear fastener, there is folding backward the upper end of bottom surface after the preceding slotware Side, rear fastener are made up of nylon, have the notch of a c types below rear fastener, there is the connection of two upward and downwards in rear fastener c type groove mouths Hole, rear fastener is by two bolt connections in the rear portion of the beam pipe.

6. quick stretching handle drag type portable bicycle according to claim 1, it is characterized in that：The middle even part back upper place There are a transverse holes, there are four cross-perforatings in the middle part of middle company's part, have longitudinal slotted hole in the middle part of middle company's part, in described Even the slotted hole of part longitudinal direction is connected with the cross-perforating of the rear corner in described middle even four cross-perforatings of part, the middle even part The upper connecting hole for also having two longitudinal directions, the transverse direction of the middle even part back lower place have a Five-way tube corresponding aperture.

7. quick stretching handle drag type portable bicycle according to claim 1, it is characterized in that：Described shock resistance block be by The shock resistance block of rectangular block shape made of polyurethane, there are a through hole and two connecting holes, the company of the shock resistance block on described shock resistance block It is the hole that counterbore connects with perforation to connect hole, and two connecting holes of the shock resistance block respectively lock the two of bolts and the middle even part by a pair The connecting hole connection of longitudinal direction, described bullet fitting is a rod metalwork, and described to play one of fitting be in cast, the bullet fitting To be round bar form the obtuse angle to raise up by two bendings for other end, the cast for playing fitting is penetrated in the middle even part In the slotted hole of longitudinal direction, the cast for playing fitting is threaded into connecting to lock bolt for the middle even rear corner cross-perforating of part Connect, 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 formed and raised up Obtuse angle be exposed to the rear of the shock resistance block, the bullet bending of fitting two and form the obtuse angle to raise up can be with the back vent The elongated hole interlocking of part shock-absorbing catch.

8. quick stretching handle drag type portable bicycle according to claim 1, it is characterized in that：The two of the shock-absorbing catch Respectively there is a hole on side, has an elongated hole in the middle part of the shock-absorbing catch, described dropout upper edge and lower edge are respectively in evagination Semicircle it is tubular, described rear fork is after front folds downwards, the semicircle in evagination of the right dropout front portion lower edge It is tubular, can be with the c type groove mouths of fastener after the central sill, enabling described rear fork be positioned with described central sill, after described After fork expansion, being connected to the shock-absorbing catch that two Five-way tubes connect during the rod of part two cracks can be with described shock-absorbing part phase Against, and the elongated hole of the shock-absorbing catch with it is described bullet the bending of fitting two and formed the obtuse angle to raise up it is corresponding and energy interlocking.

9. quick stretching handle drag type portable bicycle according to claim 5, it is characterized in that：Described vehicle seat includes seat Pipe, lock-connecting piece, connecting rod, saddle and folding positioning lock, described seat pipe is made up of rectangle seat pipe, upper plug member and circle saddle pipe, described Close-fitting is socketed rectangular metal pipe in the pore of rectangle seat pipe lower end, and the rectangle seat pipe bottom is with being socketed rectangular metal therein Pipe is together respectively provided with a cross-perforating in upper, middle and lower and an elongated hole is together provided with trailing flank, the rectangle seat pipe bottom Lower cross-perforating by lock bolt with it is described after at left and right sides of slotware before upper angle is mutual that perforation is rotatablely connected, the rectangle The middle cross-perforating of seat 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 Shape part and extension spring are formed, 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 square The elongated hole of shape seat pipe bottom trailing flank, there are a transverse holes, the transverse holes in the front of hook-like part hook-type in front of hook-like part hook-type In the pore of the rectangle seat pipe bottom, one end of extension spring is connected to the transverse holes of hook-like part, one end connection of extension spring In the lower cross-perforating for penetrating the rectangle seat pipe bottom to locking bolt, the hook-type of the hook-like part energy in the presence of extension spring With the upper edge interlocking of rear slotware trailing flank.

10. quick stretching handle drag type portable bicycle according to claim 9, it is characterized in that：Described folding positioning Lock is made up of pedestal, circular hole plug, latching connector, spring and pull handle, and the front portion of pedestal is a vertical rectangle pore, the rear portion of pedestal In groove profile, 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 fixed There is the circular hole of a upward and downward one 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 dead bolt There are transverse holes shape, 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 formed, and when by described vehicle seat collapsed forward after, the latching connector for folding positioning lock can be with preceding slotware backward Flanging interlocking.