CN203937818U

CN203937818U - The portable scooter of aluminium die casting vehicle body umbrella tooth transmission

Info

Publication number: CN203937818U
Application number: CN201420280154.6U
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2014-05-29
Filing date: 2014-05-29
Publication date: 2014-11-12
Anticipated expiration: 2024-05-29

Abstract

The portable scooter of a kind of aluminium die casting vehicle body umbrella tooth transmission, comprise side arm, vehicle body, folding connecting rod, front fork, V font folding hand handle, front-wheel, trailing wheel and driver train, the second engaging lug and front head tube are welded in the down tube two ends of side arm, head tube before the first engaging lug welding, vehicle body is by anterior angle, gearcase, rear connecting leg and rear wheel fork one form, the first horizontal perforation of vehicle body connects the first engaging lug, folding connecting rod connects the 3rd horizontal perforation of the second engaging lug and vehicle body, head tube before front fork connects, V font folding hand handle and front-wheel, driver train is: fix shaft is fixed on vehicle body the second horizontal perforation, bent axle and prime bevel gear are installed on gearcase, longitudinal drive shaft is connected in rear connecting leg, prime cone gear, rear class bevel gear is connected in longitudinal drive shaft two, trailing wheel, rear class cone gear and sprocket wheel are connected in rear wheel fork, chain is wire-wrapped in sprocket wheel and flywheel, treadle connects engaging lug and step, and be socketed on fix shaft two, pendulum connects engaging lug and bent axle.

Description

The portable scooter of aluminium die casting vehicle body umbrella tooth transmission

technical field:

The utility model relates to a kind of bipod the stand scooter of riding, the particularly portable scooter of a kind of aluminium die casting vehicle body umbrella tooth transmission.

background technology:

The Quick-folding portable pedal bike that the design people formerly designed, solved some portable problems and folding speed issue, but due to reasons such as structures, outward appearance is unsatisfactory, outside particularly chain is exposed to, always allows people have a kind of not perfect sorry sensation.

utility model content:

The purpose of this utility model is will be on the basis of original Quick-folding portable pedal bike, improve, improve and improve, create and a kind of bevel gear and cone gear be arranged in vehicle body, and can not find out in appearance this drive mechanism, adopt aluminium die casting vehicle body technique---the portable scooter of aluminium die casting vehicle body umbrella tooth transmission.The purpose of this utility model is to realize like this, the portable scooter of aluminium die casting vehicle body umbrella tooth transmission, comprise side arm, vehicle body, folding connecting rod, front fork, V font folding hand handle, front-wheel, trailing wheel and driver train, it is characterized in that: side arm comprises front head tube, down tube, the first engaging lug and the second engaging lug, 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, and the second engaging lug is welded in the top of down tube and front head tube weld, vehicle body is by anterior angle, gearcase, rear connecting leg and rear wheel fork one form, in vehicle body, also comprise bearing backing member, anterior angle is stretched out forward by gearcase, the front end of anterior angle has the first horizontal perforation, there is the second horizontal perforation the back upper place of anterior angle, the back upper place of the second horizontal perforation, there is the 3rd horizontal perforation the front upper place that is positioned at gearcase, gearcase connects rear connecting leg backward, the right flank of gearcase has a pipe, a bearing is respectively inlayed at two of pipe, rear connecting leg connects rear wheel fork backward, in the pore at rear connecting leg two ends, be respectively embedded with a bearing backing member, embedded bearing in bearing backing member, a bearing is respectively inlayed in the two sides of rear wheel fork front portion, respectively there is a U-lag rear end that rear wheel fork two is pitched, trailing wheel is installed on the rear end of rear wheel fork, the first horizontal perforation of anterior angle is by rotating and be connected with the first engaging lug lock bolt, folding connecting rod comprises front rod, rear linking rod, snap close, little spring and ball-headed bolt, front rod is the respectively plastics rod like parts with a cross-perforating of below at front end and rear portion, there is a upper and lower through slotted hole at the rear portion of front rod, snap close and little spring are installed in the slotted hole of front rod, the front perforation of front rod is by being rotationally connected lock bolt and the second engaging lug, the rear perforation of front rod is rotationally connected by the engaging lug of the front end to lock bolt and rear linking rod, rear linking rod is the parts of the each welding in two ends one engaging lug of a rectangular tube, the top of rear linking rod rectangular tube front end is twisted and is connect a ball-headed bolt, the engaging lug of rear linking rod rear end is by being rotationally connected the 3rd horizontal perforation of lock bolt and anterior angle, the ball-headed bolt of rear linking rod top can be by the snap close interlocking on front rod, front fork and front head tube are rotationally connected, front-wheel is installed on front fork, V font folding hand handle is fixedly connected with the front fork tube of front fork, driver train comprises fix shaft, treadle, engaging lug, step, pendulum, bent axle, longitudinal drive shaft, laterally transmission shaft, prime bevel gear, prime cone gear, rear class bevel gear, rear class cone gear, sprocket wheel, flywheel and chain, bent axle is made up of left bent axle and right bent axle, left bent axle is that round steel and one section of square tubes soldering of a bending forms, right bent axle is that the round steel of a bending and the axle of headband side's tenon are welded, the square tube of left bent axle is connected with prime bevel gear, the axle of right bent axle one headband side's tenon penetrates in the two bearings in gearcase right flank pipe, longitudinal drive shaft penetrates in the bearing hole at rear connecting leg two ends, prime cone gear is fastened to longitudinal drive shaft front end, rear class bevel gear is fastened to longitudinal drive shaft rear end, rear class cone gear and sprocket wheel are fastened to the right head of horizontal transmission shaft, laterally transmission shaft two ends are installed in the two bearings of rear wheel fork front portion, chain is wire-wrapped in sprocket wheel and flywheel, fix shaft is pressed in the second horizontal perforation of anterior angle, two of two treadles and fix shaft socket that rotates, two steps are installed on the rear end of two treadles, two engaging lugs are welded on the below of two treadle front portions, two pendulums are rotationally connected two engaging lugs, two pendulums are rotationally connected with respectively the left head of left bent axle and the right head of right bent axle.

The beneficial effects of the utility model are: the utility model vehicle body adopts aluminium diecasting, make the utility model good looking appearance, smooth and there is modern sense, the employing of driver train longitudinal drive shaft be arranged in rear connecting leg, with prime bevel gear, prime cone gear is arranged in gearcase, and rear wheel fork is anterior and middle part to the inside with edge, make driving of the present utility model and drive mechanism all obtain ideally hiding, rear wheel fork upwarps to back upper place, make related two steps of two treadles can arrange lowlyer, thereby while making people ride this car, center of gravity is relatively lower, adopt side arm to be rotationally connected vehicle body, folding connecting rod is rotationally connected side arm and vehicle body, make the utility model folding quick, and simple structure again, intensity is high again.

brief description of the drawings:

Fig. 1 is the utility model structural representation

Fig. 2 is the organigram of the utility model vehicle body

Fig. 3 is the schematic diagram of the utility model part driver train

Fig. 4 is the utility model folding process schematic diagram

Fig. 5 is the folding complete figure of the utility model

In figure: 1---side arm, 2---vehicle body, 3---folding connecting rod, 4---front fork, 5---V font folding hand handle, 6---front-wheel, 7---trailing wheel, 8---driver train; Wherein side arm 1 also comprises: 11---front head tube, and 12---down tube, 13---the first engaging lug, 14---the second engaging lug; Vehicle body 2 also comprises: 21---anterior angle, and 22---gearcase, 23---rear connecting leg, 24---rear wheel fork; Folding connecting rod 3 also comprises: 31---front rod, and 32---rear linking rod, 33---snap close; Driver train 8 also comprises: 81---fix shaft, and 821---treadle, 822---engaging lug, 823---step, 83---pendulum, 84---bent axle, 851---longitudinal drive shaft, 852---laterally transmission shaft, 861---prime bevel gear, 862---prime cone gear, 871---rear class bevel gear, 872---rear class cone gear, 881---sprocket wheel, 882---flywheel, 89---chain.

detailed description of the invention:

According to Fig. 1, Fig. 2, Fig. 3, the described portable scooter of aluminium die casting vehicle body umbrella tooth transmission, comprise side arm 1, vehicle body 2, folding connecting rod 3, front fork 4, V font folding hand 5, front-wheel 6, trailing wheel 7 and driver train 8.

Described side arm 1 comprises front head tube 11, down tube 12, the first engaging lug 13 and the second engaging lug 14, described down tube 12 is that the rectangular tube at oblique angle is in the same way cut at a two, the front end of described down tube 12 upper and lower surfaces has all rushed arc opening, the front end of described down tube 12 is welded in the lower end of described front head tube 11, the first described engaging lug 13 of rear end welding 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 welds, the first described engaging lug 13 and the second described engaging lug 14, there is a mutual flute profile blanked part to perforation the two sides that are all flute profile.

Described vehicle body 2 comprises anterior angle 21, gearcase 22, rear connecting leg 23 and rear wheel fork 24, the anterior angle 21 of described vehicle body 2, gearcase 22, rear connecting leg 23 is aluminium diecastings that one is connected with rear wheel fork 24, in described vehicle body 2, also comprise bearing backing member, described 21 one-tenth horn shapes that protract of anterior angle, the front end of described anterior angle 21 has the first horizontal perforation, there is the second horizontal perforation the back upper place of described anterior angle 21, the back upper place of the second horizontal perforation, there is the 3rd horizontal perforation the front upper place that is positioned at described gearcase 22, described 22 one-tenth openings of gearcase round box shape left, the middle part of the right flank of described gearcase 22 also has a pipe, the pipe at gearcase 22 middle parts is horizontal, respectively there is a counterbore at two of pipe, right one side of something in described gearcase circle 22, forwardly, there is with the back lower place reinforced rib being connected with gearcase 22 middle part pipes back upper place, in two counterbores of described gearcase 22 middle part pipes, respectively inlay a bearing, with the coherent described rear connecting leg 23 of described gearcase 22, the front-end and back-end of pore are respectively embedded with a bearing backing member, described bearing backing member is that counterbore is connected with through hole, the external diameter that counterbore is one is with the nylon part of chimb, bearing backing member described in two is respectively inlayed a bearing, the described rear wheel fork 24 coherent with described rear connecting leg 23 upwarps to back upper place, respectively there is one bowl of type counterbore the both sides of described rear wheel fork 24 front portions, in two bowls of type counterbores of described rear wheel fork 24, respectively inlay a bearing, there is inside chimb on described rear wheel fork 24 upper top anterior and middle part, respectively there is a U-lag rear end of 24 liang of forks of described rear wheel fork, the U-lag of described rear wheel fork 24 is for installing described trailing wheel 7, described trailing wheel 7 is inflated wheel of 10 inches, the first horizontal perforation of described anterior angle 21 is by rotating and be connected with the first described engaging lug 13 lock bolt.

Described folding connecting rod 3 comprises front rod 31, rear linking rod 32, snap close 33, little spring and ball-headed bolt, described front rod 31 is the respectively enhancing of the modification with the cross-perforating nylon rod like parts of below at front end and rear portion, the rear portion of described front rod 31 has one up and down to wearing longitudinal slotted hole, the bottom of described front rod 31 slotted holes is connected with the depression of flute profile, snap close 33 and little spring are installed in the slotted hole of described front rod 31, described snap close 33 is by push button, locking plate and tie bolt form, push button is that the front portion of oval sheet bottom surface has the outstanding Plastic Parts of a square-tube-shaped, the outstanding square-tube-shaped of push button is put into the rear end of front rod slotted hole downwards, again little spring is put into from bottom to top to the slotted hole of described front rod 31, and the two that makes little spring heads on the front end in the outstanding square-tube-shaped of push button and described front rod 31 slotted holes, again locking plate is combined on the outstanding square-tube-shaped of push button, penetrate with tie bolt in the hole of locking plate, and be fastened in the pore of the outstanding square-tube-shaped of push button, make little spring be positioned the front portion of locking plate, in the front portion of push button and the slotted hole of front rod, locking plate is slided in the groove-shaped depression of bottom of described front rod 31 slotted holes, the front perforation of described front rod 31 is by being rotationally connected lock bolt and described the second engaging lug 14, the rear perforation of described front rod 31 is by being rotationally connected the engaging lug of lock bolt and described rear linking rod 32 front ends, described rear linking rod 32 is parts of the each welding in two ends one engaging lug of a rectangular tube, it is one mutual to perforation that the two sides of described rear linking rod 32 front and back end two engaging lugs respectively have, the top of described rear linking rod 32 rectangular tube front ends is twisted and is connect a ball-headed bolt, the engaging lug of described rear linking rod 32 rear ends is by being rotationally connected the 3rd horizontal perforation of lock bolt and described anterior angle 21, the ball-headed bolt of described rear linking rod 32 tops can be connected to described snap close 33 interlockings on described front rod 31.

Described front fork 4 comprises Y-piece and front fork tube, Y-piece is that top has circular hole, two lower ends to have the mutual parts to perforation, the lower end close-fitting socket of the circular hole at Y-piece top and front fork tube, front fork tube is the threaded pipe in top, described front fork 4 is rotatably connected by seven bowls and described front head tube 11, described front-wheel 6 is installed on the mutual in perforation of 4 liang of lower ends of described front fork, and described front-wheel 6 is 8 inches of wheels.

Described V font folding hand, 5, comprises handgrip pedestal, inside extending tube, U-lag plastic lining, the left part that connects, the right part that connects, left hand handle, right handgrip, to lock bolt, left lock-connecting piece, right lock-connecting piece, hole cylinder, quick detach, safety catch, described handgrip pedestal, is Intermediate Gray one circular hole, both sides are respectively with flute profile, two flute profiles are cut off workpiece near the inner side, both sides of bottom land with the Al squeezing material of convex tendon, two side lower parts of described handgrip pedestal two flute profiles are respectively mutual to perforation with one, one tapped bore is arranged at the top of described handgrip pedestal the right groove rear side, inside extending tube described in the bottom close-fitting socket one of described handgrip pedestal circular hole, described U-lag plastic lining is that upper middle part is U-lag, bottom is flat-bottom slot, the both sides of flat-bottom slot are with mutually to the Plastic Parts of boring a hole, and two outsides of described U-lag plastic lining are respectively with sulculus, and described in two, the sulculus of U-lag plastic lining is corresponding to the convex tendon in handgrip pedestal flute profile described in two, and be pushed in the flute profile of handgrip pedestal described in two, by U-lag plastic lining bottom described in two to perforation corresponding to the two flute profile both sides of handgrip pedestal described in two to perforation, the caliber of the U-lag of described U-lag plastic lining and described left hand handle and described right handgrip matches.

Described left part and the described right part that connects of connecting, it is the workpiece of the Al squeezing material section of a bottom zone circle shape, described left part and the described right top that connects part of connecting, be fixedly connected on respectively the bottom of described left hand handle and described right handgrip, described left hand handle and described right handgrip are that top is bending backward, described in two to lock bolt, by described left connect part and described right connect part be rotationally connected with respectively described bottom, pedestal flute profile both sides to U-lag plastic lining bottom in perforation and described in two in boring a hole.

Described left lock-connecting piece, it is one one-tenth flute profile, the both sides of flute profile with mutual to wearing the aluminum component of circular hole, described left lock-connecting piece is welded in described left hand the rear side of bottom, described right lock-connecting piece, it is the sliced pieces of the Al squeezing material of an Intermediate Gray U-lag, described right lock-connecting piece is welded in the rear side of described right handgrip bottom, the U-lag of described right lock-connecting piece is corresponding with the flute profile of described left lock-connecting piece, described hole cylinder, the side that is a metal cylinder has a pair of perforation, described hole cylinder penetrate described left lock-connecting piece up and down to wearing in circular hole, and mutual to wearing circular hole normal-running fit with described left lock-connecting piece, described quick detach is by a circle hook bolt, fast dismounting handle, pad, spring and Anti-slip nut form, eccentric orfice on described fast dismounting handle is rotationally connected by rivet and described circle hook bolt, described circle hook bolt penetrates described pad, penetrate again in a spring, penetrate again the hole cylinder side that is connected in the upper and lower circular hole of described left lock-connecting piece in perforation, and be arranged in the groove of described left lock-connecting piece, and then screw in described Anti-slip nut, described quick disassemble lock is connected in the U-lag of described right lock-connecting piece, described safety catch is the Plastic Parts with U-shaped card, connecting bore is arranged at the bottom of described safety catch U-shaped card, the connecting bore of described safety catch is bolted in the tapped bore of the rear upper lateral part of described handgrip pedestal the right groove, the U-shaped card of described safety catch is corresponding with the fast dismounting handle of described quick detach, and engaging.

Described driver train 8 comprises fix shaft 81, treadle 821, engaging lug 822, step 823, pendulum 83, bent axle 84, longitudinal drive shaft 851, laterally transmission shaft 852, prime bevel gear 861, prime cone gear 862, rear class bevel gear 871, rear class cone gear 872, sprocket wheel 881, flywheel 882 and chain 89, described fix shaft 81 middle parts are with the axle of straight-tooth annular knurl, a tapped bore is respectively with at the center of described fix shaft 81 two ends end points, the straight-tooth annular knurl close-fitting at described fix shaft 81 middle parts is fixedly pressed in the second horizontal perforation of described anterior angle 21, described treadle 821 is metal tubes of the each vertical welding one short pipe in front and back end, in the short Circular Tube With Hole of described treadle 821 rear ends, be tapping into tapped bore, the bottom surface of described treadle 821 front portions is welded with engaging lug 822, described engaging lug 822 is that bottom is with the mutual flute profile stamping to perforation, two of 821 points of left and right of described treadle, 823 points of left and right of step described in two are fastened in the tapped bore of treadle 821 rear ends described in two, the front pore of treadle 821 and two of described fix shaft 81 socket that rotates described in two, then in the tapped bore at described fix shaft 81 two ends, respectively coordinate a pad to twist with a bolt and connect wherein location, pendulum 83 described in two by two pairs of lock bolts be rotationally connected with engaging lug 822 described in two in perforation, described pendulum 83 is aluminium extruded type sliced pieces of 8-shaped, in two holes of 8 word slices, each Inlaid mono-bearing forms, described bent axle 84 is made up of left bent axle and right bent axle, described left bent axle is that the vertical and one section of square tubes soldering of the round steel of a bending left forms, there is a tapped bore at the end points center that the bending left of described left bent axle is one, described right bent axle is that the round steel of a bending to the right axle vertical and headband side's tenon is welded, there is a tapped bore at the end points center that the bending to the right of described right bent axle is one, there is a tapped bore at the left end point center that described right bent axle side tenon is one, described prime bevel gear 861 is modification of nylon bevel gears of 2.5 modulus 30 teeth, the rear flank of described prime bevel gear 861 has a groove, one groove of the rear flank of described prime bevel gear 861 is corresponding with the round steel of described left bent axle, there is a square hole centre of described prime bevel gear 861, the square tube close-fitting of described left bent axle penetrates in the square hole of centre of described prime bevel gear 861, and the round steel of described left bent axle becomes zyklopisch with a groove of the rear flank of described prime bevel gear 861, the axle of one headband side's tenon of described right bent axle penetrates in the two bearings of inlaying in described gearcase 22 right flank pipes, described longitudinal drive shaft 851 is axles of the anti-pitch thread of two ends band, described longitudinal drive shaft 851 penetrates in the bearing at described rear connecting leg 23 two ends, described prime cone gear 862 is modification of nylon cone gears of 2.5 modulus 15 teeth, there is metal insert the centre of described prime cone gear 862, the center of metal insert is with anti-pitch thread hole, described prime cone gear 862 is fastened to the front end of described longitudinal drive shaft 851, prime bevel gear 861 described in the square tube inconjunction with of described left bent axle is socketed on the square tenon of described right bent axle, the round steel that makes the bending left of described left bent axle and the round steel of described right bent axle bending to the right become 180 ° corresponding, and with the tapped bore location of the bolt tie spacer side of being fastened to tenon end points, allow described left bent axle be fixedly connected with described right bent axle, described prime bevel gear 861 and described prime cone gear 862 engagement fit, pendulum 83 described in two is socketed on respectively and of described right bent axle bending to the right of described left bent axle bending left, then in the tapped bore of described left bent axle left end and in the tapped bore of described right bent axle right-hand member, respectively twist and connect location with a bolt, described rear class bevel gear 871 is modification of nylon bevel gears of 2 modulus 30 teeth, there is metal insert the centre of described rear class bevel gear 871, the center of metal insert is with anti-pitch thread hole, described rear class bevel gear 871 is fastened to the rear end of described longitudinal drive shaft 851, described rear class cone gear 872 is modification of nylon cone gears of 2 mould 15 teeth, there is metal insert the centre of described rear class cone gear 872, the center of metal insert is threaded hole, the metal insert of described rear class cone gear 872 is fixedly connected with described sprocket wheel 881, sprocket wheel 881 described in described rear class cone gear 872 inconjunction withs is fastened to the right head of described horizontal transmission shaft 852, described horizontal transmission shaft 852 is right headband outside threads, the center of two ends end points is the axle with a tapped bore respectively, described sprocket wheel 881 is sprocket wheels of 4 point of 11 tooth, the two ends of described horizontal transmission shaft 852 penetrate in the bearing in the anterior two bowls of type counterbores of described rear wheel fork 24, respectively be fastened in the tapped bore at described horizontal transmission shaft 852 two ends with a pad with two bolts again, described rear class cone gear 872 and described rear class bevel gear 871 engagement fit, described flywheel 88 is arranged on described trailing wheel 7, described flywheel 882 is coupled flywheels of 4 point of 9 tooth, on sprocket wheel 881 described in described chain 89 is wire-wrapped in and described flywheel 882.

Claims

1. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission, comprise side arm, vehicle body, folding connecting rod, front fork, V font folding hand handle, front-wheel, trailing wheel and driver train, it is characterized in that: side arm comprises front head tube, down tube, the first engaging lug and the second engaging lug, 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, and the second engaging lug is welded in the top of down tube and front head tube weld, vehicle body is by anterior angle, gearcase, rear connecting leg and rear wheel fork one form, in vehicle body, also comprise bearing backing member, anterior angle is stretched out forward by gearcase, the front end of anterior angle has the first horizontal perforation, there is the second horizontal perforation the back upper place of anterior angle, the back upper place of the second horizontal perforation, there is the 3rd horizontal perforation the front upper place that is positioned at gearcase, gearcase connects rear connecting leg backward, the right flank of gearcase has a pipe, a bearing is respectively inlayed at two of pipe, rear connecting leg connects rear wheel fork backward, in the pore at rear connecting leg two ends, be respectively embedded with a bearing backing member, embedded bearing in bearing backing member, a bearing is respectively inlayed in the two sides of rear wheel fork front portion, respectively there is a U-lag rear end that rear wheel fork two is pitched, trailing wheel is installed on the rear end of rear wheel fork, the first horizontal perforation of anterior angle is by rotating and be connected with the first engaging lug lock bolt, folding connecting rod comprises front rod, rear linking rod, snap close, little spring and ball-headed bolt, front rod is the respectively plastics rod like parts with a cross-perforating of below at front end and rear portion, there is a upper and lower through slotted hole at the rear portion of front rod, snap close and little spring are installed in the slotted hole of front rod, the front perforation of front rod is by being rotationally connected lock bolt and the second engaging lug, the rear perforation of front rod is rotationally connected by the engaging lug of the front end to lock bolt and rear linking rod, rear linking rod is the parts of the each welding in two ends one engaging lug of a rectangular tube, the top of rear linking rod rectangular tube front end is twisted and is connect a ball-headed bolt, the engaging lug of rear linking rod rear end is by being rotationally connected the 3rd horizontal perforation of lock bolt and anterior angle, the ball-headed bolt of rear linking rod top can be by the snap close interlocking on front rod, front fork and front head tube are rotationally connected, front-wheel is installed on front fork, V font folding hand handle is fixedly connected with the front fork tube of front fork, driver train comprises fix shaft, treadle, engaging lug, step, pendulum, bent axle, longitudinal drive shaft, laterally transmission shaft, prime bevel gear, prime cone gear, rear class bevel gear, rear class cone gear, sprocket wheel, flywheel and chain, bent axle is made up of left bent axle and right bent axle, left bent axle is that round steel and one section of square tubes soldering of a bending forms, right bent axle is that the round steel of a bending and the axle of headband side's tenon are welded, the square tube of left bent axle is connected with prime bevel gear, the axle of right bent axle one headband side's tenon penetrates in the two bearings in gearcase right flank pipe, longitudinal drive shaft penetrates in the bearing hole at rear connecting leg two ends, prime cone gear is fastened to longitudinal drive shaft front end, rear class bevel gear is fastened to longitudinal drive shaft rear end, rear class cone gear and sprocket wheel are fastened to the right head of horizontal transmission shaft, laterally transmission shaft two ends are installed in the two bearings of rear wheel fork front portion, chain is wire-wrapped in sprocket wheel and flywheel, fix shaft is pressed in the second horizontal perforation of anterior angle, two of two treadles and fix shaft socket that rotates, two steps are installed on the rear end of two treadles, two engaging lugs are welded on the below of two treadle front portions, two pendulums are rotationally connected two engaging lugs, two pendulums are rotationally connected with respectively the left head of left bent axle and the right head of right bent axle.

2. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: described down tube is that the rectangular tube at oblique angle is in the same way cut at a two, the front end of described down tube upper and lower surface has all rushed arc opening, the first described engaging lug and the second described engaging lug are all that the two sides of flute profile have a mutual flute profile blanked part to perforation.

3. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: the anterior angle of described vehicle body, gearcase, rear connecting leg is the aluminium diecasting that one is connected with rear wheel fork, the horn shape that described anterior angle becomes to protract, described gearcase becomes opening round box shape left, the middle part of the right flank of described gearcase is also connected with a pipe, the pipe at gearcase middle part is horizontal, respectively there is a counterbore at two of pipe, right one side of something in described gearcase circle, forwardly, there is with the back lower place reinforced rib being connected with gearcase middle part pipe back upper place, in two counterbores of described gearcase middle part pipe, respectively inlay a bearing, described bearing backing member is that counterbore is connected with through hole, the external diameter that counterbore is one is with the nylon part of chimb.

4. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: the described rear wheel fork coherent with described rear connecting leg upwarps to back upper place, respectively there is one bowl of type counterbore the both sides of described rear wheel fork front portion, in two bowls of type counterbores of described rear wheel fork, respectively inlay a bearing, there is inside chimb on described rear wheel fork upper top anterior and middle part.

5. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: the bottom of described front rod slotted hole is connected with the depression of flute profile, described snap close is by push button, locking plate and tie bolt form, push button is that the front portion of oval sheet bottom surface has the outstanding Plastic Parts of a square-tube-shaped, the outstanding square-tube-shaped of push button is put into the rear end of front rod slotted hole downwards, again little spring is put into from bottom to top to the slotted hole of described front rod, and the two that makes little spring heads on the front end in the outstanding square-tube-shaped of push button and described front rod slotted hole, again locking plate is combined on the outstanding square-tube-shaped of push button, penetrate with tie bolt in the hole of locking plate, and be fastened in the pore of the outstanding square-tube-shaped of push button, make little spring be positioned the front portion of locking plate, in the front portion of push button and the slotted hole of front rod, locking plate is slided in the groove-shaped depression of bottom of described front rod slotted hole.

6. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: described front fork comprises Y-piece and front fork tube, Y-piece is that top has circular hole, two lower ends to have the mutual parts to perforation, the lower end close-fitting socket of the circular hole at Y-piece top and front fork tube, front fork tube is the threaded pipe in top, described front-wheel is 8 inches of wheels, and described trailing wheel is the inflated wheel of 10 inches.

7. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: described V font folding hand handle, comprise handgrip pedestal, inside extending tube, U-lag plastic lining, the left part that connects, the right part that connects, left hand handle, right handgrip, to lock bolt, left lock-connecting piece, right lock-connecting piece, hole cylinder, quick detach, safety catch, described in two, the sulculus of U-lag plastic lining is corresponding to the convex tendon in handgrip pedestal flute profile described in two, and be pushed in the flute profile of handgrip pedestal described in two, by U-lag plastic lining bottom described in two to perforation corresponding to the two flute profile both sides of handgrip pedestal described in two to perforation, the caliber of the U-lag of described U-lag plastic lining and described left and right handles matches, described quick detach be connected in hole cylinder side in the upper and lower circular hole of described left lock-connecting piece in perforation, and be arranged in the groove of described left lock-connecting piece, described quick disassemble lock is connected in the U-lag of described right lock-connecting piece.

8. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: described fix shaft middle part is with the axle of straight-tooth annular knurl, the straight-tooth annular knurl close-fitting at described fix shaft middle part is fixedly pressed in the second horizontal perforation of described anterior angle, described treadle is the metal tube of the each vertical welding one short pipe in front and back end, in the short Circular Tube With Hole of described treadle rear end, be tapping into tapped bore, described engaging lug is that bottom is with the mutual flute profile stamping to perforation, described treadle divides two of left and right, step described in two divides left and right to be fastened in the tapped bore of treadle rear end described in two, the front pore of treadle and two of described fix shaft socket that rotates described in two, pendulum described in two by two pairs of lock bolts be rotationally connected with engaging lug described in two in perforation, described pendulum is the aluminium extruded type sliced pieces of 8-shaped, in two holes of 8 word slices, each Inlaid mono-bearing forms.

9. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: described prime bevel gear is the modification of nylon bevel gear of 2.5 modulus 30 teeth, the rear flank of described prime bevel gear has a groove, one groove of the rear flank of described prime bevel gear is corresponding with the round steel of described left bent axle, there is a square hole centre of described prime bevel gear, the square tube close-fitting of described left bent axle penetrates in the square hole of centre of described prime bevel gear, and the round steel of described left bent axle becomes zyklopisch with a groove of the rear flank of described prime bevel gear, described longitudinal drive shaft is the axle of the anti-pitch thread of two ends band, described prime cone gear is the modification of nylon cone gear of 2.5 modulus 15 teeth, there is metal insert the centre of described prime cone gear, the center of metal insert is with anti-pitch thread hole, prime bevel gear described in the square tube inconjunction with of described left bent axle is socketed on the square tenon of described right bent axle, the round steel that makes the bending left of described left bent axle and the round steel of described right bent axle bending to the right become 180 ° corresponding, and with the tapped bore location of the bolt tie spacer side of being fastened to tenon end points, allow described left bent axle be fixedly connected with described right bent axle, described prime bevel gear and described prime cone gear engagement fit.

10. the portable scooter of aluminium die casting vehicle body umbrella tooth transmission according to claim 1, it is characterized in that: described rear class bevel gear is the modification of nylon bevel gear of 2 modulus 30 teeth, there is metal insert the centre of described rear class bevel gear, the center of metal insert is with anti-pitch thread hole, described rear class cone gear is the modification of nylon cone gear of 2 mould 15 teeth, there is metal insert the centre of described rear class cone gear, the center of metal insert is threaded hole, the metal insert of described rear class cone gear is fixedly connected with described sprocket wheel, described horizontal transmission shaft is right headband outside thread, the center of two ends end points is the axle with a tapped bore respectively, described sprocket wheel is the sprocket wheel of 4 point of 11 tooth, the two ends of described horizontal transmission shaft penetrate in the bearing in the anterior two bowls of type counterbores of described rear wheel fork, respectively be fastened in the tapped bore at described horizontal transmission shaft two ends with a pad with two bolts again, described rear class cone gear and described rear class bevel gear engagement fit, described flywheel is the coupled flywheel of 4 point of 9 tooth.