CN103879493B

CN103879493B - Portable pedal tricycle capable of being folded rapidly

Info

Publication number: CN103879493B
Application number: CN201410099792.2A
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Jiashan Yaozhuang modern service industry comprehensive development Co., Ltd
Priority date: 2014-03-18
Filing date: 2014-03-18
Publication date: 2017-01-18
Anticipated expiration: 2034-03-18
Also published as: CN103879493A

Abstract

A portable pedal tricycle capable of being folded rapidly comprises a front frame, a tricycle body, a folding connection rod, a front fork, a V-shaped folding handle, a front wheel, a rear left wheel, a rear right wheel and a drive mechanism. The front frame is provided with a first connection lug, a second connection lug and a front pipe. A main component of the tricycle body is provided with a first hole, a second hole, a third hole, a fourth hole, a fifth hole, a sixth hole and a seventh hole. A bearing insert is internally provided with a first bearing and a second bearing which are located in the second hole and the third hole respectively. A rear fork is connected with the sixth hole, the seventh hole and a rear shaft. The first hole is connected with the second connection lug. The folding connection rod is connected with the first connection lug and the fifth hole. The front fork is connected with the front pipe, the V-shaped folding handle and the front wheel. According to the drive mechanism, a crankshaft gear is connected with the first bearing, a locating shaft is fixed to the fourth hole, pedal rods are connected with the two ends of the locating shaft in a sleeved mode and are connected with the connection lugs and pedals, swing sheets are connected with the connection lugs and the crankshaft gear, an auxiliary shaft is connected with a chain wheel and a rear-level gear, a flywheel is installed on the rear shaft, the rear shaft is connected with the rear left wheel and the rear right wheel, and a chain is connected with the chain wheel and the flywheel in a winding mode.

Description

Fast folding portable three-wheel scooter

Technical field

The three-wheel scooter ridden the present invention relates to a kind of bipod is stood, particularly to a kind of fast folding portable three-wheel Scooter.

Background technology

The quick-folding portable three-wheel scooter that the design people's previous design is crossed, solves the problems, such as some portable and foldings Speed issue, but volume after folding or larger, not light and handy, be still not so good as people's will at portable aspect.

Content of the invention

The invention aims on the basis of original quick-folding portable three-wheel scooter, designing a kind of folding With launch more quick, carry more easily fast folding portable three-wheel scooter.The purpose of the present invention is realized in : fast folding portable three-wheel scooter, including side arm, vehicle body, folding connecting rod, front fork, v font folding hand handle, front-wheel, a left side Off hind wheel and drive mechanism, is characterized in that: side arm includes front head tube, down tube, the first engaging lug and the second engaging lug, down tube It 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, the second connection Ear is welded in the top of down tube and front head tube weld；Vehicle body include main part, bearing inserts, clutch shaft bearing, two second Bearing, two 3rd bearings, back vent and panel, main part is the slice processing part of aluminium extruded type, and the forward lower comer of main part has the first hole, main There is the second hole at the middle part of part, and the rear in main part second hole links up and has the 3rd hole, and there are the 4th hole, main part in the front upper place in main part second hole Back upper place the 5th hole in the 4th hole, there are tandem 6th hole and seven apertures in the human head in the rear in main part the 3rd hole, and bearing inserts is The modified nylon that strengthens is made, and inlays clutch shaft bearing and two second bearings, bearing inserts is installed on main part in bearing inserts Right side in second hole and the 3rd hole, back vent is fixedly connected on the 6th hole and seven apertures in the human head the position of main part by two to lock bolt Lie prone outside the left and right sides at main part rear portion, the rear portion of back vent, two rear ends of back vent are provided with two 3rd bearings, and panel is connected to On back vent, the first hole of main part is connected by being rotated with the first engaging lug to lock bolt；Folding connecting rod include front rod, after connect Bar, lock, little spring and button-headed bolt, front rod is each plastics rod with a cross-perforating in lower section at front end and rear portion Part, there is about one through elongated hole at the rear portion of front rod, installs lock and little spring, wear before front rod in the elongated hole of front rod Hole passes through lock bolt is connected with the second engaging lug rotation, is punched through to lock bolt and the front end of back link after front rod Engaging lug rotates and connects, and back link is each part welding an engaging lug in two ends of a rectangular tube, back link rectangular tube front end Top twist-on one button-headed bolt, the engaging lug of back link rear end passes through lock bolt is connected with the 5th hole rotation of main part, after Button-headed bolt above connecting rod can be by the lock interlocking on front rod；Front fork is passed through seven bowls and is connected with the rotation of front head tube, front Wheel is installed on front fork, and being fixedly connected with the front fork tube of front fork, drive mechanism includes locating shaft, treadle, connection to v font folding hand Ear, step, pendulum, crankshaft toothed wheel, rear class gear, countershaft, sprocket wheel, rear axle, flywheel and chain, crankshaft toothed wheel by gear, in flakes Bent axle, two nuts and two flat machine bolts are constituted, gear be made of modified strengthen nylon, the left side of gear have two hexagonal counterbores, two Hexagonal counterbore respectively connects to the right a through hole, and gear also has a crankshaft hole, and there are cylindrical prominent, the two halves of two halves on the right side of gear Groove between cylinder is corresponding with the external diameter of bent axle round steel in flakes, each embedded nut in two hexagonal counterbores of gear, in flakes Bent axle is that a round steel is bent into z font, is welded with circular punching, and the center of bent axle z font round steel two ends end points respectively has in flakes One screwed hole, has two holes wearing bolt and a hole wearing bent axle, in flakes by gear two halves cylinder in the circular punching of bent axle The prominent of shape penetrates to the right in the interior circular hole of clutch shaft bearing, by the left end of bent axle in flakes penetrate to the left gear crankshaft hole and to Left win, and the z font round steel of bent axle in flakes is corresponded to the cylindrical groove of gear two halves simultaneously and is closed up, then with two flat machines Bolt penetrates to the left to be worn in the hole of bolt and in two through holes of gear in the two of the circle punching of bent axle in flakes, then with embedded gear Two hexagonal counterbores in nut twist-on, the 4th hole of locating shaft and main part fixes, and two treadles are rotated with two of locating shaft Socket, two steps are installed on the rear end of two treadles, and two engaging lugs are welded in the anterior lower section of two treadles, and two pendulums rotate and connect Two engaging lugs, two pendulums are rotationally connected with two of bent axle in flakes respectively, and rear class gear is arranged on two second bearings by countershaft Endoporus in, sprocket wheel is fixed with countershaft, and rear axle is installed in the endoporus of two 3rd bearings of back vent two rear end, and flywheel is arranged on On rear axle, left and right trailing wheel is installed on two of rear axle, and chain is wire-wrapped on sprocket wheel and flywheel.

The invention has the beneficial effects as follows: rotated using side arm and connect main part, folding connecting rod rotates and connects side arm and main part, makes The present invention folds quick and simple structure, intensity but also height not only, main part adopts aluminium extruded type section reprocessing and back vent pass through right Lock bolt is fixedly connected on the mode of main part, makes the production of the present invention become simply easy, using bearing inserts by first axle Hold and be fixed on main part with second bearing so that main part connects clutch shaft bearing and second bearing becomes simple and effective, drive The crankshaft toothed wheel of mechanism is by gear, bent axle is constituted in flakes, makes the construction of crankshaft toothed wheel simpler, more reasonable.

Brief description

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

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

Fig. 3 is the synthesis right view of 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 folds, for the present invention, the design sketch finishing

In figure: 1 side arm, 2 vehicle bodies, 3 folding connecting rods, 4 front forks, 5 v font folding hands handles, 6 front-wheels, 71 left rear wheels, 72 off hind wheels, 8 drive mechanisms；Wherein side arm 1 also includes: 11 fronts Pipe, 12 down tubes, 13 first engaging lugs, 14 second engaging lugs；Vehicle body 2 also includes: 21 main parts, 22 bearing inserts, 23 clutch shaft bearings, 24 second bearings, 25 3rd bearings, 26 back vents, 27 panels；Also include on main part 21: 211 first holes, 212 second holes, 213 the 3rd holes, 214 the 4th holes, 215 the 5th holes, 216 the 6th holes, 217 seven apertures in the human heads；Folding connecting rod 3 also includes: 31 front rods, 32 back links, 33 locks, 34 little springs, 35 button-headed bolts；V font folds Handle 5 also to include: 51 handle base, 52 u shape groove 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: 81 locating shafts, and 821 step on Bar, 822 engaging lugs, 823 steps, 83 pendulums, 84 crankshaft toothed wheels, 85 rear class gears, 86 Countershaft, 87 sprocket wheels, 881 rear axles, 882 flywheels, 89 chains；Crankshaft toothed wheel 84 also includes: 841 teeth Wheel, 842 bent axles in flakes.

Specific embodiment

According to Fig. 1, Fig. 2, Fig. 3, described fast folding portable three-wheel scooter, including side arm 1, vehicle body 2, the company of folding Bar 3, front fork 4, v font folding hand are 5, front-wheel 6, left rear wheel 71, off hind wheel 72 and drive mechanism 8.

Described side arm 1 includes front head tube 11, down tube 12, the first engaging lug 13 and the second engaging lug 14, and described is oblique Stay tube 12 is the rectangular tube that a two cuts with oblique angle in the same direction, and the front end Dou Chong of described down tube 12 upper and lower surface has arc opening, institute The front end stating down tube 12 is welded in the lower end of described front head tube 11, and first that the rear end welding of described down tube 12 is described connects Ear 13, the second described engaging lug 14 is welded in the top of described down tube 12 and described front head tube 11 weld, and described the One engaging lug 13 and the second described engaging lug 14, are all that the two sides of flute profile have a mutual flute profile stamping parts to perforation.

Described vehicle body 2 include main part 21, bearing inserts 22, clutch shaft bearing 23, second bearing 24,3rd bearing 25, Back vent 26 and panel 27, described main part 21 is the slice processing part of aluminium extruded type, and the forward lower comer of described main part 21 has 8 millimeters of φ's Collar aperture, title the first hole 211, there is the circular hole of 102 millimeters of φ at the middle part of described main part 21, claims the second hole 212, described main part 21 second The circular hole of coherent 32 millimeters of the φ in the rear in hole 212, title the 3rd hole 213, described main part 21 second hole 212 and the 3rd hole 213 are right Around side, there are several screwed holes in also branch, and there is the circular hole of 18 millimeters of φ the front upper place in described main part the second hole 212, claims the Four holes 214, there is the circular hole of 8 millimeters of φ the back upper place in main part the 4th hole 214, claims the 5th hole 215, before and after the rear in main part the 3rd hole Arrange the circular hole of 8 millimeters of two φ, claim the 6th hole 216 and seven apertures in the human head 217, at front portion and the rear portion of described main part 21, be also distributed with Fabrication hole, described bearing inserts 22 be anterior be that the modified of a tubular strengthens nylon part for an annular, rear portion, described The diameter of bearing inserts 22 annulus is corresponding with the aperture in described main part 21 second hole 212, described bearing inserts 22 pipe Caliber corresponding with the aperture in described main part 21 the 3rd hole 213, the inner diameter hole of described bearing inserts 22 annulus is that left side is Through hole, right side are counterbore, and there are the jump-ring slot that can inlay internal jump ring, described axle in the aperture of described bearing inserts 22 annulus counterbore The internal diameter holding inserts 22 annulus counterbore is corresponding with the external diameter of described clutch shaft bearing 23, described bearing inserts 22 pipe Inner diameter hole be left head and right head be all counterbore, middle part be through hole, the internal diameter of described bearing inserts 22 pipe two counterbore and institute The external diameter of the second bearing 24 stated is corresponding, the peripheral and described bearing inserts 22 on the right side of described bearing inserts 22 annulus The rear end of pipe, is also connected with several ears, has earhole on ear, the ear on the several even ear of described bearing inserts 22 Hole is corresponding with several screwed holes in described main part 21 second hole 212 and the surrounding of the 3rd hole 213 right flank, and described bearing is inlayed Part 22 right side in the right side and the 3rd hole 213 hole in the hole of described main part 21 second hole 212 by several bolt connections, described Clutch shaft bearing 23 be external diameter be 85 millimeters of φ, internal orifice dimension be the deep groove ball bearing of 65 millimeters of φ, described clutch shaft bearing 23 inlays In the counterbore of described bearing inserts 22 annulus, and snap into the card of described bearing inserts 22 annulus counterbore with an internal jump ring In spring groove, described second bearing 24 be external diameter be 24 millimeters of φ, internal orifice dimension be 12 millimeters of φ deep groove ball bearing, described in two Second bearing 24 is embedded in the counterbore at described bearing inserts 22 pipe two, and described 3rd bearing 25 is external diameter is φ 28 Millimeter, internal orifice dimension are the deep groove ball bearing of 15 millimeters of φ, and described back vent 26 is adding of the Al squeezing material that medial surface carries shallow slot Workpiece, described back vent 26 becomes symmetrical shape for two, lies prone outside the front middle part corrugate bending of described back vent 26, rear portion, institute The anterior front and rear row stating the wavy bending of back vent 26 shows the circular hole of 8 millimeters of two φ, the shallow slot of described back vent 26 and described main part 21 Rear portion correspond to, described back vent 26 passes through two to the 6th hole 216 and the seven apertures in the human head locking bolt and being fixedly connected on described main part 21 217 and be located at described main part 21 rear portion the left and right sides, described 26 liang of back-end locations of back vent have the circular hole of 28 millimeters of φ, described Respectively there are four perforation in the surrounding of back vent 28 millimeters of circular holes of 26 liang of φ, respectively inlays described in described back vent 28 millimeters of circular holes of 26 liang of φ 3rd bearing 25, two rear ends of described back vent 26 are respectively furnished with two square punchings, the square punching that described back vent 26 rear end is furnished with, and are Centre has a circular hole, circular to have the square punching of four punchings, and four punchings of punching square described in two are corresponded to a left side Four perforation of back vent rear end, the endoporus of the corresponding described 3rd bearing 25 of middle circular hole of square punching simultaneously are simultaneously located at left back The left and right two sides of fork rear end, then the left and right that with 4, the square punching described in two is connected to by bolt and nut with described left back fork rear end Described 3rd bearing 25 is positioned the rear end of described left back fork by two sides with this, by four punchings of punching square described in two Corresponding to four of right back vent rear end perforation, the endoporus of middle the circular hole described 3rd bearing 25 of correspondence of square punching simultaneously and Positioned at the left and right two sides of right back vent rear end, then with four, the square punching described in two is connected to after described right back vent bolt and nut Described 3rd bearing 25 is positioned the rear end of described right back vent, the upper edge of described back vent 26 by the left and right two sides at end with this Also have several vertical screwed holes, described panel 27 is the plate face that plastics are made, and the base on the front right side of described panel 29 has One opening, the opening of described panel 29 corresponds to the described chain 89 being wire-wrapped on described sprocket wheel 87 and described flywheel 882, described There is horizontal and vertical reinforcement the bottom surface of panel 27, and the right and left of described panel 27 bottom surface is distributed with connecting hole, described face The connecting hole of plate 27 is corresponding with described back vent 26 upper edge vertical screwed hole, described panel 27 pass through bolt with described Back vent 26 connect, the first hole 211 of described main part 21 passes through lock bolt and described first engaging lug 13 are turned to perforation It is dynamically connected.

Described folding connecting rod 3 includes front rod 31, back link 32, lock 33, little spring 34 and button-headed bolt 35, institute The front rod 31 stated is each modified enhancing nylon rod like parts with a cross-perforating in lower section at front end and rear portion, described front rod 31 Rear portion have about one through elongated hole, the bottom of described front rod 31 elongated hole is connected with the depression of flute profile, described front rod 31 Lock 33 and little spring 34 are installed in elongated hole, described lock 33 is made up of push button, locking plate and connecting bolt, and push button is oval There is the working of plastics that a square-tube-shaped projects the front portion of sheet bottom surface, after the square-tube-shaped that push button projects is lowered in front rod elongated hole End, then little spring 34 is put in the elongated hole of described front rod 31 from bottom to top, and so that two of little spring 34 is hanged down push button and dash forward Front end in the square-tube-shaped and described front rod 31 elongated hole that go out, then locking plate is combined on the square-tube-shaped that push button projects, with connecting spiral shell Bolt penetrates in the hole of locking plate and is fastened in the pore that push button projects square-tube-shaped, so that little spring 34 is positioned the front portion of locking plate, push away In the elongated hole of the front portion of button and front rod, locking plate is made to slide in the groove-shaped depression of bottom of described front rod 31 elongated hole, described It is punched through before front rod 31 lock bolt is rotated with described second engaging lug 14 and is connected, the rear perforation of described front rod 31 is led to Cross lock bolt is rotated with the engaging lug of described back link 32 front end and be connected, described back link 32 is that the two ends of a rectangular tube are each Weld the part of an engaging lug, the two sides of described back link 32 front and back end two engaging lug respectively have one mutual to perforation, described Top twist-on one button-headed bolt 35 of back link 32 rectangular tube front end, the engaging lug of described back link 32 rear end passes through to lock spiral shell Bolt is rotated with the 5th hole 215 of described main part 21 and is connected, and the button-headed bolt 35 of described back link 32 top can be connected to institute State described lock 33 interlocking on front rod 31.

Described front fork 4 includes Y-piece and front fork tube, and Y-piece throws face, medial surface band by two sections of lateral surfaces for circular arc There is the workpiece of the Al squeezing material of shallow slot, and a cast aluminum component is welded, there are the notch of u shape, fork-shaped in two lower ends of Y-piece The lower end close-fitting socket of the collar aperture of part cast aluminum component and front fork tube, front fork tube is the threaded pipe in top, and described front fork 4 leads to Cross seven bowls to be rotatably connected with described front head tube 11, described front-wheel 6 is installed on the u shape groove of described 4 liang of lower ends of front fork In mouthful, described front-wheel 6 is 6 inches of wheels, and described left and right trailing wheel is divided into left rear wheel 71 and off hind wheel 72, described left rear wheel 71 Wheel shaft core position be inlaid with barrel, the barrel of described left rear wheel 71, be that external diameter carries straight-tooth annular knurl, aperture carries along pitch thread Barrel, the wheel shaft core position of described off hind wheel 72 is inlaid with two bearings, described left rear wheel 71 and described off hind wheel 72 It is all 8 inches of wheels.

Described v font folding hand 5, including handle base 51, inside extending tube, u shape groove plastic lining 52, left even part 531, right Even part 532, left hand are 541, right handgrip 542, to lock bolt 55, left lock-connecting piece 561, right lock-connecting piece 562, hole cylinder 57, soon Tear 58, safety fastener 59 open, described handle base 51, is that Intermediate Gray one circular hole, both sides respectively carry flute profile, two flute profiles near bottom land The Al squeezing material cutting off processing part of convex tendon is carried, two side lower parts of described 51 liang of flute profiles of handle base respectively carry a phase inside both sides Mutual to perforation, a screwed hole, the bottom of described handle base 41 circular hole are arranged at the top on rear side of described handle base 51 the right groove Close-fitting socket one described in inside extending tube, described u shape groove plastic lining 52 be upper middle part be u shape groove, bottom be flat-bottom slot, flat-bottom slot Both sides carry working of plastics mutually to perforation, described u shape groove plastic lining 52 two outside respectively carry sulculus, u shape groove described in two The sulculus of plastic lining 52 corresponds to the convex tendon in handle base 51 flute profile described in two and is pushed in the groove of handle base 51 described in two In shape, by u shape groove 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 wearing Hole, the u shape groove of described u shape groove plastic lining 52 is matched the caliber of 541 and described right handgrip 542 with described left hand.

Described left even part 531 and described right even part 532, are the processing of the Al squeezing material section of a bottom zone circle shape Part, the top of described left even part 531 and described right even part 532, there are the cylinder of a Vehicle Processing, described left even part 531 He The described right even cylinder of part 532, it is fixedly sheathed in the bottom 541 and described right handgrip 542 for the described left hand respectively, described Left hand is equipped with a pin, described right handgrip 542 and the described right socket connecting part 532 the socket place of 541 and described left even part 531 Place is equipped with a pin, and 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 described pedestal 51 flute profile two side lower part respectively To in perforation and u shape groove plastic lining 52 bottom described in two in perforation.

Described left lock-connecting piece 561, be one one-tenth flute profile, the both sides of flute profile carry mutual to the aluminum component wearing circular hole, described Left lock-connecting piece 561 is welded in the rear side 541 bottoms for the described left hand, described right lock-connecting piece 562, is an Intermediate Gray u shape groove The sliced pieces of Al squeezing material, described right lock-connecting piece 562 is welded in the rear side of described right handgrip 542 bottom, described right lock-connecting piece 562 The u shape groove hole cylinder 57 corresponding, described with the flute profile of described left lock-connecting piece 561, be that the side of a metal cylinder has A pair of perforation, described hole cylinder 57 penetrate described left lock-connecting piece 561 up and down to wear in circular hole and with described left lock-connecting piece 561 mutual is rotatably assorted to wearing circular hole, and described Quick Release 58 is by a circle hook bolt, fast dismounting handle, pad, spring and anti-skidding Nut is constituted, and the eccentric orfice on described fast dismounting handle passes through the rotation of rivet and described circle hook bolt and is connected, described circle hook bolt Penetrate described pad, penetrate again in a spring, penetrate the hole cylinder being connected in described left lock-connecting piece circular hole about 561 again 57 sides to perforation in, and be located at described left lock-connecting piece 561 groove in, then screw again in described Anti-slip nut, institute In the u shape groove of described right lock-connecting piece 562, described safety fastener 59 is the working of plastics with u shape card to Quick Release 58 interlocking stated, institute Connecting hole is arranged at the bottom stating safety fastener 59 u shape card, and the connecting hole of described safety fastener 59 is bolted to described handle base The screwed hole of the upper back of 51 the right grooves, the u shape card of described safety fastener 59 is corresponding with the fast dismounting handle of described Quick Release 58 and blocks Close.

Described drive mechanism 8 includes locating shaft 81, treadle 821, engaging lug 822, step 823, pendulum 83, crankshaft toothed wheel 84th, rear class gear 85, countershaft 86, sprocket wheel 87, rear axle 881, flywheel 882 and chain 89, described locating shaft 81 middle part is with straight The axle of tooth annular knurl, the center of described locating shaft 81 two ends end points is each to carry a screwed hole, the straight-tooth annular knurl at described locating shaft 81 middle part Close-fitting fixation is pressed in the 4th hole 214 of described main part 21, described crankshaft toothed wheel 84 by gear 841, in flakes bent axle 842, Two nuts and two flat machine bolts are constituted, and described gear 841 is that the modified of two mould 40 octadentate strengthens nylon gear, described gear There are two hexagonal counterbores on 841 left side, and two hexagonal counterbores of described gear 841 respectively connect to the right a through hole, on described gear 841 also There is a crankshaft hole, there are two circles on the right side of described gear 841 through semi-cylindrical prominent for 65 millimeters of φ, described gear 841 Groove between two halves cylinder is corresponding with the external diameter of described bent axle in flakes 842 round steel, in two hexagonal counterbores of described gear 841 Each embedded nut, described bent axle 842 in flakes, are that a round steel is bent into z font, then by the round steel of z font and circular punching Be welded described bent axle 842 in flakes, and the center of described bent axle in flakes 842 z font round steel two ends end points respectively has a spiral shell Pit, the circular punching of described bent axle in flakes 842 has two holes wearing bolt and a hole wearing bent axle, by described gear 84 Two halves cylindrical prominent penetrate to the right in the interior circular hole of described clutch shaft bearing 23, by the left end of described bent axle in flakes 842 to A left side penetrates the crankshaft hole of described gear 841 and wins to the left, and corresponds to the z font round steel of described bent axle in flakes 842 simultaneously The cylindrical groove of described gear 841 two halves is closed up, then is penetrated circular in described bent axle in flakes 842 to the left with two flat machine bolts The two of punching wear in the hole of bolt and in two through holes of described gear 841, then with embed two hexagonal counterbores of described gear 841 In nut twist-on, described treadle 821 is the metal tube of each vertical welding in front and back end one short garden pipe, after described treadle 821 It is tapping into screwed hole, the bottom surface of described treadle 821 front portion is welded with engaging lug 822, described engaging lug 822 in the short Circular Tube With Hole at end It is that bottom carries the mutual flute profile stamping to perforation, described treadle 821 points about two, 823 points about of the step described in two It is fastened in the screwed hole of treadle 821 rear end described in two, two of the front pore of treadle 821 described in two and described locating shaft 81 is made Rotate socket, then coordinate a pad twist-on wherein to position in the screwed hole at described locating shaft 81 two ends, respectively with a bolt, two Described pendulum 83 passes through two and lock bolt is rotated with connection with engaging lug 822 described in two in perforation, and described pendulum 83 is 8 In the aluminium extruded type sliced pieces of font, the holes of 8 word slices, each bearing forms, and the pendulum 83 described in two is socketed on described company respectively Two of piece bent axle 842, then wherein positions, institute in the screwed hole at described bent axle in flakes 842 two ends, respectively with a bolt twist-on The rear class gear 85 stated is the aluminium extruded type gear of two mould 12 tooth, and the axle center hole of described rear class gear 85 is the screwed hole of anti-tooth, Described countershaft 86 right-hand member is fixedly connected with described sprocket wheel 87, and described sprocket wheel 87 is the sprocket wheel of four point of 21 tooth, described The left head of countershaft 86, has the anti-pitch thread corresponding with the screwed hole of described rear class gear 85, described countershaft 86 is from right to left Penetrate in the endoporus of second bearing described in two 24, the screwed hole twist-on with described rear class gear 85 again, described rear class gear 85 are engaged with described crankshaft toothed wheel 84, described rear axle 881, be middle part with the raised suitable pitch thread of twist-on flywheel 882, Left headband has left rear wheel 71 described in twist-on to carry a screwed hole along the end points center of pitch thread, right-hand member, and described rear axle 881 is installed In the endoporus of 3rd bearing 25 described in two of described 26 liang of rear ends of back vent, described in twist-on on the thread at described rear axle 881 middle part Flywheel 882, described flywheel 882 is the flywheel of four point of 12 tooth, and described chain 89 is wire-wrapped in described sprocket wheel 87 and institute On the flywheel 882 stated.

Claims

1. a kind of fast folding portable three-wheel scooter, including side arm, vehicle body, folding connecting rod, front fork, v font folding hand, Front-wheel, left and right trailing wheel and drive mechanism, is characterized in that: side arm includes front head tube, down tube, the first engaging lug and the second connection Ear, down tube is a rectangular tube, and the first engaging lug is welded in the rear end of down tube, and the front end of down tube is welded under front head tube End, the second engaging lug is welded in the top of down tube and front head tube weld；Vehicle body includes main part, bearing inserts, first axle Hold, two second bearings, two 3rd bearings, back vent and panel, main part is the slice processing part of aluminium extruded type, the forward lower comer of main part There is the first hole, there is the second hole at the middle part of main part, and the rear in main part second hole links up and has the 3rd hole, and the front upper place in main part second hole has 4th hole, there is the 5th hole the back upper place in main part the 4th hole, and there are tandem 6th hole and seven apertures in the human head in the rear in main part the 3rd hole, Bearing inserts is made of modified enhancing nylon, inlays clutch shaft bearing and two second bearings, bearing is inlayed in bearing inserts Part is installed on the right side in main part second hole and the 3rd hole, back vent by two to lock bolt be fixedly connected on main part the 6th holes and Seven apertures in the human head the left and right sides positioned at main part rear portion, lie prone outside the rear portion of back vent, two rear ends of back vent are provided with two 3rd bearings, Panel is connected on back vent, and the first hole of main part is connected by being rotated with the first engaging lug to lock bolt；Folding connecting rod includes Front rod, back link, lock, little spring and button-headed bolt, front rod is lower section each band one cross-perforating at front end and rear portion Plastics rod like parts, there is about one through elongated hole at the rear portion of front rod, installs lock and little spring in the elongated hole of front rod, front It is punched through before connecting rod lock bolt is rotated with the second engaging lug and is connected, be punched through after front rod to lock bolt and rear company The engaging lug of the front end of bar rotates and connects, and back link is each part welding an engaging lug in two ends of a rectangular tube, back link square Top twist-on one button-headed bolt of shape pipe front end, the engaging lug of back link rear end is by turning with the 5th hole of main part to lock bolt It is dynamically connected, the button-headed bolt above back link can be by the lock interlocking on front rod；Front fork is turned by seven bowls and front head tube Be dynamically connected, front-wheel is installed on front fork, v font folding hand being fixedly connected with the front fork tube of front fork, drive mechanism include locating shaft, Treadle, engaging lug, step, pendulum, crankshaft toothed wheel, rear class gear, countershaft, sprocket wheel, rear axle, flywheel and chain, crankshaft toothed wheel by Gear, in flakes bent axle, two nuts and two flat machine bolts are constituted, and gear is made of modified enhancing nylon, and the left side of gear has two 6 Angle counterbore, two hexagonal counterbores respectively connect to the right a through hole, and gear also has a crankshaft hole, and there is two halves cylinder on the right side of gear Groove between prominent, two halves cylinder is corresponding with the external diameter of bent axle round steel in flakes, each in two hexagonal counterbores of gear embeds one Nut, bent axle is to be bent into z font, formed with circular punching welding, bent axle z font round steel two in flakes again by a round steel in flakes Respectively there is a screwed hole at the center of end end points, two holes wearing bolt are had in flakes on the circular punching of bent axle and one wear bent axle Hole, cylindrical for gear two halves projecting is penetrated to the right in the interior circular hole of clutch shaft bearing, the left end of bent axle in flakes is worn to the left Enter the crankshaft hole of gear and win to the left, and the z font round steel of bent axle in flakes is corresponded to the cylindrical groove of gear two halves simultaneously Closed up, then penetrated to the left with two flat machine bolts and wear in the hole of bolt and two the passing through of gear in the two of the circle punching of bent axle in flakes In through hole, then with two hexagonal counterbores of embedded gear in nut twist-on, the 4th hole of locating shaft and main part fixes, two treadles with Two of locating shaft rotates socket, and two steps are installed on the rear end of two treadles, and two engaging lugs are welded under two treadles front portions Side, two pendulums rotate and connect two engaging lugs, and two pendulums are rotationally connected with two of bent axle in flakes respectively, and rear class gear passes through countershaft It is arranged in the endoporus of two second bearings, sprocket wheel is fixed with countershaft, rear axle is installed on two 3rd bearings of back vent two rear end In endoporus, flywheel is arranged on rear axle, and left and right trailing wheel is installed on two of rear axle, and chain is wire-wrapped on sprocket wheel and flywheel；Described Down tube be 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, institute The first engaging lug stated and the second described engaging lug, are all that the two sides of flute profile have a mutual flute profile punching press to perforation Part；There is the circular hole of 102 millimeters of φ at the middle part of described main part, claims the second hole, and the rear in described main part second hole links up a φ 32 in the least The circular hole of rice, title the 3rd hole, around described main part second hole and the 3rd hole right flank, there are several screwed holes in also branch, in institute State front portion and the rear portion of main part, fabrication hole is also distributed with.

2. fast folding portable three-wheel scooter according to claim 1, is characterized in that: described bearing inserts is Anterior is that the modified of a tubular strengthens nylon part for an annular, rear portion, the diameter of described bearing inserts annulus with described The aperture in main part second hole is corresponding, and the caliber of described bearing inserts pipe is corresponding with the aperture in described main part the 3rd hole, The left side of the inner diameter hole of described bearing inserts annulus is through hole, right side is counterbore, described bearing inserts annulus counterbore There are the jump-ring slot that can inlay internal jump ring, the internal diameter of described bearing inserts annulus counterbore and the external diameter of described clutch shaft bearing in aperture Corresponding, the left head of inner diameter hole of described bearing inserts pipe and right head are all counterbore, middle part is through hole, described bearing edge The internal diameter of inserts pipe two counterbore is corresponding with the external diameter of described second bearing, outside the right side of described bearing inserts annulus Enclose the rear end with described bearing inserts pipe, be also connected with several ears, have earhole on ear, described bearing is inlayed The earhole that number of packages connects on ear is corresponding with several screwed holes in described main part second hole and the surrounding of the 3rd hole right flank, described Bearing inserts right side in the right side and the 3rd hole hole in the hole of described main part the second hole by several bolt connections, described Clutch shaft bearing be external diameter be 85 millimeters of φ, internal orifice dimension be the deep groove ball bearing of 65 millimeters of φ, described clutch shaft bearing is embedded in described In the counterbore of bearing inserts annulus, and snap in the jump-ring slot of described bearing inserts annulus counterbore with an internal jump ring, described Second bearing be external diameter be 24 millimeters of φ, internal orifice dimension be the deep groove ball bearing of 12 millimeters of φ, the second bearing described in two inlays In the counterbore at described bearing inserts pipe two.

3. fast folding portable three-wheel scooter according to claim 1, is characterized in that: described back vent is medial surface The workpiece of the Al squeezing material with shallow slot, described back vent becomes symmetrical shape, the front middle part Cheng Bo of described back vent for two Lie prone outside sigmoid, rear portion, the anterior front and rear row of the wavy bending of described back vent shows the circular hole of 8 millimeters of two φ, described back vent shallow Groove is corresponding with the rear portion of described main part, and described back vent two back-end location has a circular hole of 28 millimeters of φ, 28 millimeters of described back vent two φ Respectively there are four perforation in the surrounding of circular hole, respectively inlays described 3rd bearing, described back vent in described back vent 28 millimeters of circular holes of two φ Two rear ends be respectively furnished with two square punchings, the square punching that described back vent rear end is furnished with, be that centre has a circular hole, circular to have The square punching of four punchings, four punchings of punching square described in two are corresponded to four of left back fork rear end perforation, simultaneously The endoporus of the corresponding described 3rd bearing of middle circular hole of square punching the left and right two sides positioned at left back fork rear end, more right with four Square punching described in two is connected to the left and right two sides of described left back fork rear end by bolt and nut, with this by described 3rd bearing Be positioned the rear end of described left back fork, by four punchings of punching square described in two correspond to four of right back vent rear end perforation, The endoporus of the corresponding described 3rd bearing of middle circular hole of square punching simultaneously the left and right two sides positioned at right back vent rear end, then use Square punching described in two is connected to the left and right two sides of described right back vent rear end by four pairs of bolt and nuts, with this by the described the 3rd Bearing is positioned the rear end of described right back vent, and the upper edge of described back vent also has several vertical screwed holes, and described panel is The plate face that plastics are made, there is an opening on the base on the front right side of described panel, and the opening of described panel is described corresponding to being wire-wrapped in Described chain on sprocket wheel and described flywheel, there is horizontal and vertical reinforcement the bottom surface of described panel, described panel bottom surface The right and left is distributed with connecting hole, and the connecting hole of described panel is corresponding with described back vent upper edge vertical screwed hole, institute The panel stated is connected with described back vent by bolt.

4. fast folding portable three-wheel scooter according to claim 1, is characterized in that: the bottom of described front rod elongated hole Portion is provided with the depression of flute profile, and described lock is made up of push button, locking plate and connecting bolt, and push button is the front portion of long disc-shaped bottom surface The working of plastics projecting with a square-tube-shaped, the square-tube-shaped of push button projects the rear end being lowered in front rod elongated hole, then by little bullet Spring is put in the elongated hole of described front rod from bottom to top, and make two of little spring against the square-tube-shaped that push button projects and described before Front end in connecting rod elongated hole, then locking plate is combined on the square-tube-shaped that push button projects, penetrated with connecting bolt in the hole of locking plate and twist It is connected in the pore that push button projects square-tube-shaped, make little spring be positioned the elongated hole of the front portion of locking plate, the front portion of push button and front rod In, so that locking plate is slided in the groove-shaped depression of bottom of described front rod elongated hole.

5. fast folding portable three-wheel scooter according to claim 1, is characterized in that: described front fork includes fork-shaped Part and front fork tube, Y-piece by two sections of lateral surfaces be circular arc throw face, medial surface carry shallow slot Al squeezing material workpiece and One cast aluminum component is welded, and there is the notch of u shape two lower ends of Y-piece, under the collar aperture and front fork tube of Y-piece cast aluminum component End close-fitting socket, described front-wheel is 6 inches of wheels, and described left and right trailing wheel is divided into left rear wheel and off hind wheel, described left rear wheel Wheel shaft core position be inlaid with barrel, the barrel of described left rear wheel, be that external diameter carries straight-tooth annular knurl, aperture carries along pitch thread Barrel, the wheel shaft core position of described off hind wheel is inlaid with two bearings, and described left rear wheel and described off hind wheel are all 8 inches Wheel.

6. fast folding portable three-wheel scooter according to claim 1, is characterized in that: described v font folding hand , including handle base, inside extending tube, u shape groove plastic lining, left even part, right even part, left hand handle, right handgrip, to locking bolt, Zuo Suo Fitting, right lock-connecting piece, hole cylinder, Quick Release, safety fastener, described handle base is that Intermediate Gray one circular hole, both sides respectively carry groove The Al squeezing material cutting off processing part of shape, two side lower parts of described handle base two flute profile respectively carry one mutual to perforation, described The inside extending tube described in bottom close-fitting socket one of handle base circular hole, u shape groove plastic lining bottom described in two is corresponded to perforation In handle base described in two two flute profile both sides to perforation, the cylinder fixed cover respectively of described left even part and described right even part Be connected to described left hand the bottom with described right handgrip, described in two to lock bolt, by described left even part and described right company Part is rotationally connected with the right to u shape groove plastic lining bottom described in perforation neutralization two of described handle base flute profile two side lower part respectively In perforation, described left lock-connecting piece is welded in the rear side bottom for the described left hand, and described right lock-connecting piece is welded under described right handgrip The rear side in portion.

7. fast folding portable three-wheel scooter according to claim 1, is characterized in that: described middle part of locating shaft band There is the axle of straight-tooth annular knurl, the straight-tooth annular knurl close-fitting fixation of described middle part of locating shaft is pressed in the 4th hole of described main part, described Gear be that the modified of two mould 40 octadentate strengthens nylon gear, described treadle is the short pipe of each vertical welding in front and back end one Metal tube, the short Circular Tube With Hole of described treadle rear end is tapping into screwed hole, described engaging lug be bottom carry mutual to perforation Flute profile stamping, described pendulum is the aluminium extruded type sliced pieces of 8-shaped, is formed by each edge one bearing in the holes of 8 word slices, described Rear class gear be two mould 12 tooth aluminium extruded type gear, the axle center hole of described rear class gear is the screwed hole of anti-tooth, described Countershaft right-hand member is fixedly connected with described sprocket wheel, and described sprocket wheel is the sprocket wheel of four point of 21 tooth, and described countershaft is from dextrad A left side penetrates in the endoporus of second bearing described in two, then the screwed hole twist-on with described rear class gear, described rear class gear and institute The crankshaft toothed wheel engagement stated, carries the raised suitable pitch thread of twist-on flywheel in the middle part of described rear axle, left headband has described in twist-on Left rear wheel carries a screwed hole along the end points center of pitch thread, right-hand member, and described rear axle is installed on the two of described back vent two rear end In the endoporus of described 3rd bearing, the flywheel described in twist-on on the thread in the middle part of described rear axle, described flywheel is four point 12 The flywheel of tooth.