CN103879487B - The portable scooter of plastic body cover - Google Patents

Abstract

nullA kind of portable scooter of plastic body cover，Including side arm、Vehicle body、Folding connecting rod、Front fork、V-shaped folding hand handle、Front-wheel、Trailing wheel and drive mechanism，Head tube and the first engaging lug before the down tube welding of side arm，Second engaging lug is welded in front head tube，Vehicle body is by main part、Locating shaft、Clutch shaft bearing、Trim ring、Two the second bearings、Two the 3rd bearings and left and right back vent are constituted，Back vent connects trailing wheel，Folding connecting rod is by front rod、Back link、Snap close、Little spring and button-headed bolt are constituted，Front rod and the second engaging lug and back link connect，Back link is connected with main part，Front fork connects front head tube、Front-wheel and V-shaped folding hand handle，Drive mechanism includes treadle、Engaging lug、Step、Pendulum、Crankshaft sprocket、Prime countershaft、Rear class countershaft、Two-stage chain is taken turns、Prime gear、Rear class gear、Three grades of sprocket wheels、Flywheel、Prime chain and rear class chain，Drive mechanism is connected to vehicle body and trailing wheel.

Description

The portable scooter of plastic body cover

Technical field

The present invention relates to a kind of bipod stand the scooter ridden, particularly to a kind of portable scooter of plastic body cover.

Background technology

The Quick-folding portable pedal bike that the design people's previous design is crossed, solves some portable problems and the speed issue of folding, but volume after folding is the most greatly, not lightly, at portable aspect still not as people's will.

Summary of the invention

The invention aims on the basis of original Quick-folding portable pedal bike, design a kind of folding and expansion is more quick, carry the portable scooter of plastic body cover more easily.The object of the present invention is achieved like this: the portable scooter of plastic body cover, including side arm, vehicle body, folding connecting rod, front fork, V-shaped folding hand handle, front-wheel, trailing wheel and drive mechanism, it is characterized in that: side arm includes front head tube, down tube, the first engaging lug, the second engaging lug and folding fastener, down tube is a rectangular tube, the first engaging lug is welded in the rear end of down tube, the front end of down tube is welded in the lower end of front head tube, second engaging lug is welded in the top of down tube and front head tube weld, and folding fastener is bolted to the rear side at front head tube top；nullVehicle body includes main part、Locating shaft、Clutch shaft bearing、Trim ring、Two the second bearings、Two the 3rd bearings and left and right back vent，Main part is modified enhancing nylon part，The right flank of main part has depression，The main part left surface anterior corresponding to main part depression has the first counterbore，Main part the first counterbore is connected with to the right through hole，Left and right sides in the rear positions of main part depression、Front and back it is respectively arranged with the second counterbore and the 3rd counterbore，Through hole all it is connected with between two second counterbores of left and right and between the counterbore of left and right two the 3rd，Locating shaft is fixed on the front upper place of main part the first counterbore，The forward lower comer of main part has the first connecting hole，Second connecting hole is positioned at the back upper place of main part stationary positioned axle，Main part rear portion is positioned at the second counterbore and the front of the 3rd counterbore、Top、Below and rearward，Laterally it is embedded with four cylindricality nuts，Clutch shaft bearing is embedded in the first counterbore of main part，Left surface at the first counterbore fixes trim ring again，For the most fixing clutch shaft bearing，Two second bearings are embedded in two second counterbores of main part，Two the 3rd bearings are embedded in two the 3rd counterbores of main part，Left and right back vent is all modified enhancing nylon part，Left and right back vent is all that outside is thrown、The box-like member of inner side depression，There are four connecting holes the front portion of left and right back vent，The screwed hole of four cylindricality nuts of four connecting holes and main part rear portion that left and right back vent is anterior is corresponding，First connecting hole of main part is by being rotationally connected lock bolt and the first engaging lug；Folding connecting rod includes front rod, back link, snap close, little spring and button-headed bolt, front rod is the lower section respectively plastics rod like parts with a cross-perforating at front end and rear portion, there is about one through elongated hole at the rear portion of front rod, the elongated hole of front rod is installed snap close and little spring, it is punched through before front rod lock bolt and the second engaging lug are rotationally connected, it is punched through after front rod the engaging lug of lock bolt with the front end of back link is rotationally connected, back link is the parts that an engaging lug is respectively welded at the two ends of a rectangular tube, top twist-on one button-headed bolt of back link rectangular tube front end, the engaging lug of back link rear end is by being rotationally connected the second connecting hole of lock bolt with main part, button-headed bolt above back link can be by the snap close interlocking on front rod；nullFront fork is rotationally connected with front head tube by seven bowls，Front-wheel is installed on front fork，V-shaped folding hand is connected fixing with the front fork tube of front fork，Drive mechanism includes treadle、Engaging lug、Step、Pendulum、Crankshaft sprocket、Prime countershaft、Rear class countershaft、Two-stage chain is taken turns、Prime gear、Rear class gear、Three grades of sprocket wheels、Flywheel、Prime chain and rear class chain，Crankshaft sprocket is by sprocket wheel、Bent axle in flakes、Two nuts and two flat machine bolts are constituted，Sprocket wheel is that the modified nylon that strengthens is made，There are two hexagonal counterbores on the right side of sprocket wheel、Two hexagonal counterbores respectively connect a through hole，A crankshaft hole is also had on sprocket wheel，There is the prominent of two semicircular cylindricality on the left side of sprocket wheel、Groove between two semicircular cylindricality is corresponding with the external diameter of bent axle round steel in flakes，Each embedding one nut in two hexagonal counterbores of sprocket wheel，Bent axle is that a round steel is bent into zigzag in flakes、Weld with circular punching again，The center of bent axle zigzag round steel two ends end points is respectively arranged with a screwed hole in flakes，Two holes wearing bolt and a hole wearing bent axle is had in flakes in the circular punching of bent axle，Prominent by sprocket wheel two semicircular cylindricality penetrates to the left in the interior circular hole of clutch shaft bearing，The right-hand member of bent axle in flakes is penetrated to the right the crankshaft hole of sprocket wheel and wins to the right，And the zigzag round steel of bent axle in flakes is closed up corresponding to the groove of sprocket wheel two semicircular cylindricality simultaneously，Penetrate to the right in the hole of bolt is worn in the two of bent axle circle punching in flakes with two flat machine bolts again and in two through holes of sprocket wheel，Again with the nut twist-on in the two hexagonal counterbores embedding sprocket wheel，Prime countershaft penetrates in the endoporus of two second bearings，Two-stage chain wheel is fastened to the right head of prime countershaft，Prime gear is fastened to the left head of prime countershaft，Rear class countershaft penetrates in the endoporus of two the 3rd bearings，Three grades of sprocket wheels are fastened to the right head of rear class countershaft，Rear class gear is fastened to the left head of rear class countershaft，Flywheel is arranged on trailing wheel，Trailing wheel is installed on the rear end of left and right back vent，Left and right back vent is fixed by four the cylindricality nuts in bolt and main part rear portion，Two of two treadles and locating shaft rotates socket，Two steps are installed on the rear end of two treadles，Two engaging lugs are welded in the lower section in two treadles front portions，Two pendulums are rotationally connected two engaging lugs，Two pendulums are rotationally connected with two of bent axle in flakes respectively，Prime chain is wire-wrapped on crankshaft sprocket and two-stage chain wheel，Rear class chain is wire-wrapped on three grades of sprocket wheels and flywheel.

The invention has the beneficial effects as follows: use side arm to be rotationally connected main part, folding connecting rod is rotationally connected side arm and main part, the present invention is made to fold fast, and simple structure again, intensity is the highest, main part and back vent use modification to strengthen nylon and make, and the mode being bolted, break all of Manpower propulsion of bicycle and all can not use the general layout of plastic body cover, and make the production of the present invention become simple easy, the crankshaft sprocket of drive mechanism is by sprocket wheel, bent axle is constituted in flakes, make the structure of crankshaft sprocket simpler, more reasonable, prime gear, rear class gear and two-stage chain wheel, two-stage chain is taken turns, flywheel lays respectively in caving in inside the back vent of left and right, allow the gear of drive mechanism, sprocket wheel and chain are all hidden in the inner side of left and right back vent, the appearance making the present invention is more preferable.

Accompanying drawing explanation

Fig. 1 is the effect structure figure of the present invention

Fig. 2 is the synthesis left view of part vehicle body of the present invention and part drive mechanism

Fig. 3 is the synthesis right view of part vehicle body of the present invention and part drive mechanism

Fig. 4 is the structural map of folding connecting rod of the present invention

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

Fig. 6 is that the present invention folds complete design sketch

In figure: 1 side arm, 2 vehicle bodies, 3 folding connecting rods, 4 front forks, 5 V-shaped folding hands handles, 6 front-wheels, 7 trailing wheels, 8 drive mechanisms；Wherein side arm 1 also includes: head tube before 11,12 down tubes, 13 first engaging lugs, 14 second engaging lugs, 15 folding fasteners；Vehicle body 2 also includes: 21 main parts, 22 locating shafts, 23 clutch shaft bearings, 24 trim rings, 25 second bearings, 26 the 3rd bearings, 27 left back forks, 28 right back vents；Also include on main part 21: 211 first counterbores, 212 second counterbores, 213 the 3rd counterbores, 214 first connecting holes, 215 second connecting holes；Folding connecting rod 3 also includes: 31 front rods, 32 back links, 33 snap closes, 34 little springs, 35 button-headed bolts；V-shaped folding hand also includes 5: 51 handle base, 52 U-lag plastic linings, 531 left even parts, 532 right even parts, 541 left hand handles, 542 right handgrips, 55 to lock bolt, 561 left lock-connecting pieces, 562 right lock-connecting pieces, 57 hole cylinders, 58 Quick Release, 59 safety fasteners；Drive mechanism 8 also includes: 811 treadles, 812 engaging lugs, 813 steps, 82 pendulums, 83 crankshaft sprockets, 841 prime countershafts, 842 rear class countershafts, 851 two-stage chain wheels, 852 3 grades of sprocket wheels, 861 prime gears, 862 rear class gears, 87 flywheels, 881 prime chains, 882 rear class chains；Crankshaft sprocket 83 also includes: 831 sprocket wheels, 832 bent axles in flakes.

Detailed description of the invention

According to Fig. 1, Fig. 2, Fig. 3, described fast folding portable scooter, including side arm 1, vehicle body 2, folding connecting rod 3, front fork 4, V-shaped folding hand 5, front-wheel 6, trailing wheel 7 and drive mechanism 8.

nullDescribed side arm 1 includes front head tube 11、Down tube 12、First engaging lug 13、Second engaging lug 14 and folding fastener 15，Described down tube 12 is the rectangular tube that a two cuts with oblique angle in the same direction，The front end Dou Chong of described down tube 12 upper and lower surface has arc opening，The front end of described down tube 12 is welded in the lower end of described front head tube 11，First engaging lug 13 described in the welding of rear end of described down tube 12，The second described engaging lug 14 is welded in the top of described down tube 12 and described front head tube 11 weld，The first described engaging lug 13 and the second described engaging lug 14，It is all that the two sides of flute profile have a mutual flute profile stamping parts to perforation，Described folding fastener 15 is the working of plastics of a flute profile，With two convex tendons inside at described folding fastener 15 slit opening two，Two convex tendons of described folding fastener 15 can block the described left back fork 27 after folding and the rear wheel cover of described right back vent 28 top synthesis，The trough-shaped base section of described folding fastener 15 has a hole，The hole of described folding fastener 15 trough-shaped base section is bolted to the rear side at described front head tube 11 top.

nullDescribed vehicle body 2 includes main part 21、Locating shaft 22、Clutch shaft bearing 23、Trim ring 24、Second bearing 25、3rd bearing 26、Left back fork 27 and right back vent 28，Described main part 21 is modified enhancing nylon part，The right flank of described main part 21 has depression，Corresponding to described main part 21 cave in front portion described main part 21 left surface have the first counterbore 211，Described first counterbore 211 is connected with to the right through hole，The surrounding of described main part 21 first counterbore 211 is laterally embedded with four cylindricality nuts，Left and right sides in the rear positions of described main part 21 depression、Front and back it is respectively arranged with the second counterbore 212 and the 3rd counterbore 213，Through hole all it is connected with between 3rd counterbore 213 between second counterbore 212 and described in left and right two described in left and right two，The described fixing front upper place casting from described main part 21 first counterbore 211 of locating shaft 22，Described locating shaft 22 is the middle part axle with topping annular knurl，The center of the two ends end points of described locating shaft 22 is with screwed hole，The forward lower comer of described main part 21 has the first connecting hole 214，Second connecting hole 215 is positioned at the back upper place of described main part 21 stationary positioned axle，Described main part 21 rear portion is positioned at the second counterbore 212 and front of the 3rd counterbore 213、Top、Below and rearward，Laterally it is embedded with four cylindricality nuts，The front portion of described main part 21、Also there is the reinforcement of evagination the two sides at bottom and rear portion，Described clutch shaft bearing 23 is embedded in the first counterbore 211 of main part，Described clutch shaft bearing 23 be external diameter be φ 85 millimeters、Internal orifice dimension is the deep groove ball bearing of φ 65 millimeters，Again at the fixing described trim ring 24 of left surface of described main part 21 first counterbore 211，Described trim ring 24 is the circle of a nylon sheet，Four holes it are evenly distributed with on described trim ring 24，Four holes of described trim ring 24 are fixed by four cylindricality nut twist-ons of bolt with the surrounding of described main part 21 first counterbore 211、The most fixing described clutch shaft bearing 23，The second bearing 25 described in two is embedded in two second counterbores 212 of described main part 21，The 3rd bearing 26 described in two is embedded in two the 3rd counterbores 213 of described main part 21，The second described bearing 25 and the 3rd described bearing 26，Be all external diameter be φ 28 millimeters、Internal orifice dimension is the deep groove ball bearing of φ 15 millimeters，Described left and right back vent is divided into left back fork 27 and right back vent 28，Described left back fork 27 and described right back vent 28 are all modified enhancing nylon parts，Described left back fork 27 and described right back vent 28 are all that outside is thrown、The box-like member of inner side depression，There are four connecting holes the front portion of described left back fork 27 and described right back vent 28，Described left back fork 27 is corresponding with the screwed hole of four cylindricality nuts of four connecting holes and described main part 21 rear portion of described right back vent 28 front portion，The inner side at the rear portion of described left back fork 27 and described right back vent 28 is all embedded with sheet metal，Described left back fork 27 and the rear end of described right back vent 28、Sheet metal rear end with the inner side at the rear portion embedding described left back fork 27 and described right back vent 28，There is U-lag，Using as the notch installing described trailing wheel 7，The top of described left back fork 27 and described right back vent 28 is respectively connected with the wheel cover of half trailing wheel，The perforation of two extension bolts it is respectively arranged with on the wheel cover of the trailing wheel of described left back fork 27 and described right back vent 28，The inner side of described left back fork 27 and described right back vent 28 is also distributed longitudinal and vertical reinforcement，First connecting hole 214 of described main part 21 is by being rotationally connected perforation lock bolt and the first described engaging lug 13.

nullDescribed folding connecting rod 3 includes front rod 31、Back link 32、Snap close 33、Little spring 34 and button-headed bolt 35，Described front rod 31 is that the lower section at front end and rear portion respectively strengthens nylon rod like parts with the modified of a cross-perforating，There is about one through elongated hole at the rear portion of described front rod 31，The bottom of described front rod 31 elongated hole is connected with the depression of flute profile，The elongated hole of described front rod 31 is provided with snap close 33 and little spring 34，Described snap close 33 is by push button、Locking plate and connecting bolt are constituted，Push button is that the front portion of long disc-shaped bottom surface has the prominent working of plastics of a square-tube-shaped，The square-tube-shaped that push button highlights is lowered into the rear end in front rod elongated hole，Again little spring 34 is put into from bottom to top in the elongated hole of described front rod 31，And make two of little spring 34 hang down the front end in the prominent square-tube-shaped of push button and described front rod 31 elongated hole，Again locking plate is combined on the square-tube-shaped that push button is prominent，Penetrate with connecting bolt in the hole of locking plate、And be fastened in the pore that push button highlights square-tube-shaped，Little spring 34 is made to be positioned the front portion of locking plate、In the front portion of push button and the elongated hole of front rod，Make in the groove-shaped depression of the bottom that locking plate slides on described front rod 31 elongated hole，It is punched through before described front rod 31 lock bolt is rotationally connected with described second engaging lug 14，It is punched through after described front rod 31 engaging lug of lock bolt with described back link 32 front end is rotationally connected，Described back link 32 is the parts that an engaging lug is respectively welded at the two ends of a rectangular tube，It is mutual to perforation that the two sides of described back link 32 front and back end two engaging lug are respectively arranged with one，Top twist-on one button-headed bolt 35 of described back link 32 rectangular tube front end，The engaging lug of described back link 32 rear end is by being rotationally connected the second connecting hole 215 of lock bolt with described main part 21，Button-headed bolt 35 above described back link 32 can be connected to described snap close 33 interlocking on described front rod 31.

Described front fork 4 includes Y-piece and front fork tube, Y-piece is by the workpiece of two sections of semicircle aluminum pipes, it is welded with a cast aluminum component, the notch of U-shaped is flattened and rushed in two lower ends of described Y-piece, the collar aperture of Y-piece cast aluminum component and the lower end close-fitting socket of front fork tube, front fork tube is the threaded pipe in top, described front fork 4 is rotatably connected with described front head tube 11 by seven bowls, described front-wheel 6 is installed in the U-lag mouth of described 4 liang of lower ends of front fork, described front-wheel 6 is 6 inches of wheels, described trailing wheel 7 is installed in the U-lag mouth of described left back fork 27 and described 28 liang of rear ends of right back vent, described trailing wheel 7 is 8 inches of wheels.

nullDescribed V-shaped folding hand is 5，Including handle base 51、Inside extending tube、U-lag plastic lining 52、Left even part 531、Right even part 532、Left hand is 541、Right handgrip 542、To lock bolt 55、Left lock-connecting piece 561、Right lock-connecting piece 562、Hole cylinder 57、Quick Release 58、Safety fastener 59，Described handle base 51，It it is Intermediate Gray one circular hole、Both sides are respectively with flute profile、Two flute profiles inside the both sides of bottom land with convex tendon Al squeezing material cut off workpiece，Two side lower parts of described 51 liang of flute profiles of handle base are respectively mutual to perforation with one，On the right of described handle base 51, a screwed hole is arranged at the top on rear side of groove，The bottom close-fitting socket of described handle base 51 circular hole inside extending tube described in，Described U-lag plastic lining 52 be upper middle part be U-lag、Bottom is flat-bottom slot、The both sides of flat-bottom slot are with mutually to the working of plastics bored a hole，Respectively with sulculus outside the two of described U-lag plastic lining 52，The sulculus of U-lag plastic lining 52 described in two is corresponding to the convex tendon in handle base 51 flute profile described in two、And be pushed in the flute profile of handle base 51 described in two，By U-lag plastic lining 52 bottom described in two to perforation corresponding to 51 liang of flute profile both sides of handle base described in two to perforation，The U-lag of described U-lag plastic lining 52 matches the caliber of 541 and described right handgrip 542 with described left hand.

nullDescribed left even part 531 and described right even part 532，It it is the workpiece of the Al squeezing material section of a bottom zone circle shape，Described left even part 531 and the top of described right even part 532，There is the cylinder of a Vehicle Processing，Described left even part 531 and the cylinder of described right even part 532、It is fixedly sheathed in described left hand respectively 541 and the bottom of described right handgrip 542，Described left hand is equipped with a pin the socket place of 541 with described left even part 531，Described right handgrip 542 is equipped with a pin with the socket place of described right even part 532，Described left hand is that top bends backward 541 and described right handgrip 542，Described in two to lock bolt 55，Described left even part 531 and described right even part 532 are rotationally connected with respectively described pedestal 51 flute profile two side lower part in perforation、With U-lag plastic lining 52 bottom described in two to perforation in.

nullDescribed left lock-connecting piece 561，It it is one one-tenth flute profile、The both sides of flute profile with mutual to the aluminum component wearing circular hole，Described left lock-connecting piece 561 is welded in the described left hand rear side 541 bottoms，Described right lock-connecting piece 562，It it is the sliced pieces of the Al squeezing material of an Intermediate Gray U-lag，Described right lock-connecting piece 562 is welded in the rear side of described right handgrip 542 bottom，The U-lag of described right lock-connecting piece 562 is corresponding with the flute profile of described left lock-connecting piece 561，Described hole cylinder 57，It is that the side of a metal cylinder has a pair perforation，Described hole cylinder 57 penetrate described left lock-connecting piece 561 up and down to wearing in circular hole、And be rotatably assorted to wearing circular hole with the mutual of described left lock-connecting piece 561，Described Quick Release 58 is by a circle hook bolt、Fast dismounting handle、Pad、Spring and Anti-slip nut are constituted，Eccentric orfice on described fast dismounting handle is rotationally connected with described circle hook bolt by rivet，Described circle hook bolt penetrates described pad、Penetrate again in a spring、Penetrate again hole cylinder 57 side that is connected in described left lock-connecting piece about 561 circular hole in perforation，And be positioned in the groove of described left lock-connecting piece 561，Screw the most again in described Anti-slip nut，Described Quick Release 58 interlocking is in the U-lag of described right lock-connecting piece 562，Described safety fastener 59 is the working of plastics with U-shaped card，Connecting hole is arranged at the bottom of described safety fastener 59 U-shaped card，The connecting hole of described safety fastener 59 is bolted to the screwed hole of the upper back of groove on the right of described handle base 51，The U-shaped card of described safety fastener 59 is corresponding with the fast dismounting handle of described Quick Release 58、And engage.

nullDescribed drive mechanism 8 includes treadle 811、Engaging lug 812、Step 813、Pendulum 82、Crankshaft sprocket 83、Prime countershaft 841、Rear class countershaft 842、Two-stage chain wheel 851、Three grades of sprocket wheels 852、Prime gear 861、Rear class gear 862、Flywheel 87、Prime chain 881 and rear class chain 882，Described bent axle 83 sprocket wheel is by sprocket wheel 831、Bent axle 832 in flakes、Two nuts and two flat machine bolts are constituted，Described sprocket wheel 831 is that three point of 20 octadentate modification strengthens nylon sprocket wheel，There are two hexagonal counterbores on the right side of described sprocket wheel 831、Two hexagonal counterbores respectively connect a through hole，A crankshaft hole is also had on described sprocket wheel 831，There are two circles on the left side of described sprocket wheel 831 through highlighting for the semi-cylindrical of φ 65 millimeters，Groove between described sprocket wheel 831 two semicircular cylindricality is corresponding with the external diameter of described bent axle in flakes 832 round steel，Each embedding one nut in two hexagonal counterbores of described sprocket wheel 831，Described bent axle in flakes 832 is that a round steel is bent into zigzag、Weld with circular punching again，The center of described bent axle in flakes 832 zigzag round steel two ends end points is respectively arranged with a screwed hole，Two holes wearing bolt and a hole wearing bent axle is had in the circular punching of described bent axle in flakes 832，Prominent by described sprocket wheel 831 two semicircular cylindricality penetrates to the left in the interior circular hole of described clutch shaft bearing 23，The right-hand member of described bent axle in flakes 832 is penetrated to the right the crankshaft hole of described sprocket wheel 831 and wins to the right，And the zigzag round steel of described bent axle in flakes 832 is closed up corresponding to the groove of described sprocket wheel 831 two semicircular cylindricality simultaneously，Penetrate to the right in the hole of bolt is worn in the two of the circular punching of described bent axle in flakes 832 with two flat machine bolts again、With in two through holes of described sprocket wheel 831，Again with the nut twist-on in the two hexagonal counterbores embedding described sprocket wheel 832，It is installed on the described crankshaft sprocket 83 after described clutch shaft bearing 23，It is positioned at the front portion in described main part 21 depression，Described prime countershaft 841 is the middle part cylinder for φ 15 millimeters、Two is integrally connected with the anti-tooth bolt of M12，Described prime countershaft 841 penetrates in the endoporus of the second bearing 25 described in two，Described two-stage chain wheel is the sprocket wheel 851 of three point of ten tooth，The axle center hole of described two-stage chain wheel 851 has the anti-pitch thread hole of M12，Described two-stage chain wheel 851 is fastened to the right head of described prime countershaft 841，851 are taken turns with the described two-stage chain after described prime countershaft 841 twist-on，It is positioned at the rear portion in described main part 21 depression，Described prime gear 861 is that the modified of two mould 20 octadentates strengthens nylon straight-tooth gear，The axis part of described prime gear 861 is inlaid with barrel，The screwed hole of described prime gear 861 barrel is corresponding with the anti-tooth bolt of described prime countershaft 841 1，Described prime gear 861 is fastened to the left head of described prime countershaft 841，Described rear class countershaft 842 is the middle part cylinder for φ 15 millimeters、Two is integrally connected with the anti-tooth bolt of M12，Described rear class countershaft 842 penetrates in the endoporus of the 3rd bearing 26 described in two，And make the right head of described rear class countershaft 842 cylinder win to the right in the endoporus of described 3rd bearing 26，A lining ring on the rightest headgear of level countershaft 842 cylinder，Three grades of described sprocket wheels 852 are fastened to the right head of described rear class countershaft 842 again，Three grades of described sprocket wheels 852 are the sprocket wheels of four point of 13 tooth，The axle center hole of three grades of described sprocket wheels 852 has the anti-pitch thread hole of M12，Described rear class gear 862 is the Al squeezing material spur gear of two mould 12 teeth，The axle center hole of described rear class gear 862 has the anti-pitch thread hole of M12，Described rear class gear 862 is fastened to the left head of described rear class countershaft 842，Described flywheel 87 is the flywheel of four point of 12 tooth，Described flywheel 87 is arranged on described trailing wheel 7，Described left back fork 27 and described right back vent 28 are fixed by four cylindricality nuts of bolt and described main part 21 rear portion，And allow the front portion that described prime gear 861 and described rear class gear 862 be positioned at inside described left back fork 27 in depression，Allow the front portion that described three grade sprocket wheel 852 is positioned at inside described right back vent 28 in depression，Described treadle 811 is the metal tube of each vertical welding in front and back end one short garden pipe，The short Circular Tube With Hole of described treadle 811 rear end is tapping into screwed hole，The bottom surface of described treadle 811 front portion is welded with engaging lug 812，Described engaging lug 812 is that bottom is with the mutual flute profile stamping to perforation，Described treadle about 811 points two，Step described in two about 813 points is fastened in the screwed hole of treadle 811 rear end described in two，Two of the front pore of treadle 811 described in two and described locating shaft 22 rotates socket，Then in the screwed hole at described locating shaft 22 two ends、Respectively a pad twist-on is coordinated wherein to position with a bolt，Pendulum 82 described in two by two to lock bolt be rotationally connected with engaging lug described in two 812 to perforation in，Described pendulum 82 is the aluminium extruded type sliced pieces of 8-shaped、In the holes of 8 word slices, each bearing forms，Pendulum 82 described in two be socketed on respectively described in two of bent axle 832 in flakes，Then in the screwed hole at described bent axle in flakes 832 two ends、Respectively wherein position by a bolt twist-on，Described prime chain 881 is wire-wrapped on described crankshaft sprocket 83 and described two-stage chain wheel 851，And be positioned in the depression of described main part 21，Described rear class chain 882 is wire-wrapped on described three grade sprocket wheel 852 and described flywheel 87，And be positioned in the inner side depression of described right back vent 28.

Claims (7)

1. the portable scooter of plastic body cover, including side arm, vehicle body, folding connecting rod, front fork, V-shaped folding hand handle, front-wheel, trailing wheel and drive mechanism, it is characterized in that: side arm includes front head tube, down tube, the first engaging lug, the second engaging lug and folding fastener, down tube is a rectangular tube, the first engaging lug is welded in the rear end of down tube, the front end of down tube is welded in the lower end of front head tube, second engaging lug is welded in the top of down tube and front head tube weld, and folding fastener is bolted to the rear side at front head tube top；nullVehicle body includes main part、Locating shaft、Clutch shaft bearing、Trim ring、Two the second bearings、Two the 3rd bearings and left sides、Right back vent，Main part is modified enhancing nylon part，The right flank of main part has depression，The main part left surface anterior corresponding to main part depression has the first counterbore，Main part the first counterbore is connected with to the right through hole，Left and right sides in the rear positions of main part depression、Front and back it is respectively arranged with the second counterbore and the 3rd counterbore，Through hole all it is connected with between two second counterbores of left and right and between the counterbore of left and right two the 3rd，Locating shaft is fixed on the front upper place of main part the first counterbore，The forward lower comer of main part has the first connecting hole，Second connecting hole is positioned at the back upper place of main part stationary positioned axle，Main part rear portion is positioned at the second counterbore and the front of the 3rd counterbore、Top、Below and rearward，Laterally it is embedded with four cylindricality nuts，Clutch shaft bearing is embedded in the first counterbore of main part，Left surface at the first counterbore fixes trim ring again，For the most fixing clutch shaft bearing，Two second bearings are embedded in two second counterbores of main part，Two the 3rd bearings are embedded in two the 3rd counterbores of main part，Left、Right back vent is all modified enhancing nylon part，Left、Right back vent is all that outside is thrown、The box-like member of inner side depression，Left、There are four connecting holes the front portion of right back vent，Left、The screwed hole of four cylindricality nuts of four connecting holes and main part rear portion that right back vent is anterior is corresponding，First connecting hole of main part is by being rotationally connected lock bolt and the first engaging lug；Folding connecting rod includes front rod, back link, snap close, little spring and button-headed bolt, front rod is the lower section respectively plastics rod like parts with a cross-perforating at front end and rear portion, there is about one through elongated hole at the rear portion of front rod, the elongated hole of front rod is installed snap close and little spring, it is punched through before front rod lock bolt and the second engaging lug are rotationally connected, it is punched through after front rod the engaging lug of lock bolt with the front end of back link is rotationally connected, back link is the parts that an engaging lug is respectively welded at the two ends of a rectangular tube, top twist-on one button-headed bolt of back link rectangular tube front end, the engaging lug of back link rear end is by being rotationally connected the second connecting hole of lock bolt with main part, button-headed bolt above back link can be by the snap close interlocking on front rod；nullFront fork is rotationally connected with front head tube by seven bowls，Front-wheel is installed on front fork，V-shaped folding hand is connected fixing with the front fork tube of front fork，Drive mechanism includes treadle、Engaging lug、Step、Pendulum、Crankshaft sprocket、Prime countershaft、Rear class countershaft、Two-stage chain is taken turns、Prime gear、Rear class gear、Three grades of sprocket wheels、Flywheel、Prime chain and rear class chain，Crankshaft sprocket is by sprocket wheel、Bent axle in flakes、Two nuts and two flat machine bolts are constituted，Sprocket wheel is that the modified nylon that strengthens is made，There are two hexagonal counterbores on the right side of sprocket wheel，Two hexagonal counterbores respectively connect a through hole，A crankshaft hole is also had on sprocket wheel，There is the prominent of two semicircular cylindricality on the left side of sprocket wheel，Groove between two semicircular cylindricality is corresponding with the external diameter of bent axle round steel in flakes，Each embedding one nut in two hexagonal counterbores of sprocket wheel，Bent axle is that a round steel is bent into zigzag in flakes、Weld with circular punching again，The center of bent axle zigzag round steel two ends end points is respectively arranged with a screwed hole in flakes，Two holes wearing bolt and a hole wearing bent axle is had in flakes in the circular punching of bent axle，Prominent by sprocket wheel two semicircular cylindricality penetrates to the left in the interior circular hole of clutch shaft bearing，The right-hand member of bent axle in flakes is penetrated to the right the crankshaft hole of sprocket wheel and wins to the right，And the zigzag round steel of bent axle in flakes is closed up corresponding to the groove of sprocket wheel two semicircular cylindricality simultaneously，Penetrate to the right in the hole of bolt is worn in the two of bent axle circle punching in flakes with two flat machine bolts again and in two through holes of sprocket wheel，Again with the nut twist-on in the two hexagonal counterbores embedding sprocket wheel，Prime countershaft penetrates in the endoporus of two second bearings，Two-stage chain wheel is fastened to the right head of prime countershaft，Prime gear is fastened to the left head of prime countershaft，Rear class countershaft penetrates in the endoporus of two the 3rd bearings，Three grades of sprocket wheels are fastened to the right head of rear class countershaft，Rear class gear is fastened to the left head of rear class countershaft，Flywheel is arranged on trailing wheel，Trailing wheel is installed on a left side、The rear end of right back vent，Left、Right back vent is fixed by four the cylindricality nuts in bolt and main part rear portion，Two of two treadles and locating shaft rotates socket，Two steps are installed on the rear end of two treadles，Two engaging lugs are welded in the lower section in two treadles front portions，Two pendulums are rotationally connected two engaging lugs，Two pendulums are rotationally connected with two of bent axle in flakes respectively，Prime chain is wire-wrapped on crankshaft sprocket and two-stage chain wheel，Rear class chain is wire-wrapped on three grades of sprocket wheels and flywheel；Described down tube is the rectangular tube that a two cuts with oblique angle in the same direction, the front end Dou Chong of described down tube upper and lower surface has arc opening, the first described engaging lug and the second described engaging lug, it is all that the two sides of flute profile have a mutual flute profile stamping parts to perforation, described folding fastener is the working of plastics of a flute profile, with two convex tendons inside at described folding fastener slit opening two, two convex tendons of described folding fastener can block the left back fork after folding and the rear wheel cover of right back vent top synthesis；The surrounding of described main part the first counterbore is laterally embedded with four cylindricality nuts, described locating shaft is the middle part axle with topping annular knurl, the center of the two ends end points of described locating shaft is with screwed hole, the front portion of described main part, also there is the reinforcement of evagination the two sides at bottom and rear portion, described clutch shaft bearing be external diameter be φ 85 millimeters, internal orifice dimension is the deep groove ball bearing of φ 65 millimeters, described trim ring is the circle of a nylon sheet, four holes it are evenly distributed with on described trim ring, four holes of described trim ring are fixed by four cylindricality nut twist-ons of bolt with the surrounding of described main part the first counterbore, the most fixing described clutch shaft bearing, the second described bearing and the 3rd described bearing, be all external diameter be φ 28 millimeters, internal orifice dimension is the deep groove ball bearing of φ 15 millimeters.

The portable scooter of plastic body cover the most according to claim 1, it is characterized in that: a described left side, right back vent is divided into left back fork and right back vent, the inner side at the rear portion of described left back fork and described right back vent is all embedded with sheet metal, the sheet metal rear end of the inner side at the rear portion of the rear end of described left back fork and described right back vent and the described left back fork of embedding and described right back vent, there is U-lag, using as the notch installing described trailing wheel, the top of described left back fork and described right back vent is respectively connected with the wheel cover of half trailing wheel, the perforation of two extension bolts it is respectively arranged with on the wheel cover of the trailing wheel of described left back fork and described right back vent, the inner side of described left back fork and described right back vent is also distributed longitudinal and vertical reinforcement.

The portable scooter of plastic body cover the most according to claim 1, it is characterized in that: the bottom of described front rod elongated hole is connected with the depression of flute profile, described snap close is by push button, locking plate and connecting bolt are constituted, push button is that the front portion of long disc-shaped bottom surface has the prominent working of plastics of a square-tube-shaped, the square-tube-shaped that push button highlights is lowered into the rear end in front rod elongated hole, again little spring is put into from bottom to top in the elongated hole of described front rod, and make the front end in the prominent square-tube-shaped of push button and described front rod elongated hole, two of little spring, again locking plate is combined on the square-tube-shaped that push button is prominent, penetrate with connecting bolt in the hole of locking plate and be fastened in the pore that push button highlights square-tube-shaped, little spring is made to be positioned the front portion of locking plate, in the front portion of push button and the elongated hole of front rod, make in the groove-shaped depression of the bottom that locking plate slides on described front rod elongated hole.

The portable scooter of plastic body cover the most according to claim 1, it is characterized in that: described front fork includes Y-piece and front fork tube, Y-piece is welded by workpiece and a cast aluminum component of two sections of semicircle aluminum pipes, the notch of U-shaped is flattened and rushed in two lower ends of described Y-piece, the collar aperture of Y-piece cast aluminum component and the lower end close-fitting socket of front fork tube, front fork tube is the threaded pipe in top, described front-wheel is installed in the U-lag mouth of described front fork two lower end, described front-wheel is 6 inches of wheels, described trailing wheel is installed in the U-lag mouth of left back fork and right back vent two rear end, described trailing wheel is 8 inches of wheels.

nullThe portable scooter of plastic body cover the most according to claim 1，It is characterized in that: described V-shaped folding hand handle，Including handle base、Inside extending tube、U-lag plastic lining、Left even part、Right even part、Left hand handle、Right handgrip、To lock bolt、Left lock-connecting piece、Right lock-connecting piece、Hole cylinder、Quick Release、Safety fastener，Described handle base，It it is Intermediate Gray one circular hole、Both sides are respectively with the Al squeezing material cut-out workpiece of flute profile，Two side lower parts of described handle base two flute profile are respectively mutual to perforation with one，The bottom close-fitting socket of described handle base circular hole inside extending tube described in，By U-lag plastic lining bottom described in two to perforation corresponding to handle base described in two two flute profile both sides to perforation，The cylinder of described left even part and described right even part is fixedly sheathed in described left hand respectively the bottom with described right handgrip，Described in two to lock bolt，Described left even part and described right even part are rotationally connected with respectively described handle base flute profile two side lower part perforation is neutralized U-lag plastic lining bottom described in two in perforation，Described left lock-connecting piece is welded in described left hand the rear side of bottom，Described right lock-connecting piece is welded in the rear side of described right handgrip bottom.

nullThe portable scooter of plastic body cover the most according to claim 1，It is characterized in that: described sprocket wheel is that three point of 20 octadentate modification strengthens nylon sprocket wheel，The left side of described sprocket wheel has two diameters to be the semi-cylindrical prominent of φ 65 millimeters，It is installed on the described crankshaft sprocket after described clutch shaft bearing，It is positioned at the front portion in described main part depression，The middle part of described prime countershaft is the cylinder of φ 15 millimeters、Two is integrally connected with the anti-tooth bolt of M12，Described two-stage chain wheel is the sprocket wheel of three point of ten tooth，The axle center hole of described two-stage chain wheel has the anti-pitch thread hole of M12，Take turns with the described two-stage chain after described prime countershaft twist-on，It is positioned at the rear portion in described main part depression，Described prime gear is that the modified of two mould 20 octadentates strengthens nylon straight-tooth gear，The axis part of described prime gear is inlaid with barrel，The screwed hole of described prime gear barrel is corresponding with the anti-tooth bolt of described prime countershaft one，The middle part of described rear class countershaft is the cylinder of φ 15 millimeters、Two is integrally connected with the anti-tooth bolt of M12，Three grades of described sprocket wheels are the sprocket wheels of four point of 13 tooth，The axle center hole of three grades of described sprocket wheels has the anti-pitch thread hole of M12，Described rear class gear is the Al squeezing material spur gear of two mould 12 teeth，The axle center hole of described rear class gear has the anti-pitch thread hole of M12，Described flywheel is the flywheel of four point of 12 tooth，Described treadle is the metal tube of the short pipe of each vertical welding in front and back end one，The short Circular Tube With Hole of described treadle rear end is tapping into screwed hole，Described engaging lug is that bottom is with the mutual flute profile stamping to perforation，Described pendulum is the aluminium extruded type sliced pieces of 8-shaped，Formed by each edge one bearing in the holes of 8 word slices.

The portable scooter of plastic body cover the most according to claim 4, it is characterized in that: described left back fork and described right back vent are fixed with four, described main part rear portion cylindricality nut by bolt, and allow the front portion that described prime gear and described rear class gear be positioned at inside described left back fork in depression, allow the front portion that described three grade sprocket wheel is positioned at inside described right back vent in depression.