CN106240721A - The flexible portable tricycle of handle type - Google Patents

Abstract

nullA kind of flexible portable tricycle of handle type，Including flexible handle、Front fork、Side arm、Middle frame、Left back fork、Right back vent、Vehicle seat、Front-wheel、Left rear wheel、Off hind wheel and drive mechanism，Flexible handle connects front fork and side arm，Front fork is by Five-way tube component、Square tube、Square column and front axle are constituted，Front-wheel is connected to front axle，Flexible handle is by left hand handle、Right handgrip、Upper latch fitting、Lower latch fitting and handle are constituted，Side arm is made up of tumbler and front-axle beam，Middle frame includes twin beams pipe、First two-tube set、Rear casing、Boring cover after two、First latch hook member、Second latch hook member、Left spacer block、Right spacer block and tow wheel，Left and right back vent connects left and right trailing wheel respectively，Vehicle seat is by seat pipe、Vehicle seat folded piece、Second latch hook member、Seat bar and saddle are constituted，Drive mechanism includes axis、Two cranks、Chain wheel、Two pedals、Flywheel and chain，Drive mechanism is connected on Five-way tube component and front-wheel.

Description

The flexible portable tricycle of handle type

Technical field:

The present invention relates to a kind of folding tricycle, stretch the portable three-wheel of handle type voluntarily particularly to one Car.

Technical background:

There is folding tricycle in the market, but due to the reason such as structure and structure, also can not reach after folding The least satisfaction.

Summary of the invention:

The invention aims to the new type foldable mode providing a kind of handlebar with flexible handle type, the related trailing wheel of after-frame to Front folding, vehicle seat fold the mode with side arm folding linkage, can reach the least flexible handle type after having folded Portable tricycle.The object of the present invention is achieved like this；The flexible portable tricycle of handle type, including stretching Handle, front fork, side arm, middle frame, left back fork, right back vent, vehicle seat, front-wheel, left rear wheel, off hind wheel and drive mechanism, its feature It is: flexible handle includes left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle that left hand is being by the upper end of pipe with right handgrip Form as right-angle bending, left hand with right handgrip right-angle bending at below outside have screwed hole, upper latch fitting is by upper clamping piece, limit Bit slice and clamping screw are constituted, and upper clamping piece is the blank of an aluminium extruded type, and the two ends, left and right of upper clamping piece are respectively arranged with the circle of a upward and downward Hole, the circular hole of two upward and downwards of upper clamping piece is also connected with cracking of upward and downward, and upper clamping piece upward and downward cracks left and right Ge Kai rearward There is the bottom of screwed hole of left and right two upward and downward that the screwed hole of a upward and downward, upper clamping piece upward and downward crack rearward by two bolts Twist-on one banking stop, allows banking stop be connected to the bottom side of upper clamping piece, and the centre of upper clamping piece has one to crack vertical with upper clamping piece upward and downward Straight longitudinal hole, the rear end of upper clamping piece longitudinal hole connects the stop nut of a clamping screw, and left hand handle and right handgrip penetrate folder In the circular hole of two ends, part left and right upward and downward, and by left hand with right handgrip right-angle bending at below screwed hole corresponding to upper clamping piece Bottom side, with two bolts be screwed into respectively left hand with right handgrip right-angle bending at below screwed hole in, by left hand handle and the right side Hands spacing with what upper clamping piece was made to rotate, and, be fastened to left hand with two bolts on right handgrip, and be connected to upper clamping piece The banking stop of bottom side coordinates, can be as spacing when launching with right handgrip of left hand, and clamping screw penetrates the longitudinal hole of upper clamping piece In, and be screwed in stop nut, tighten clamping screw and can tighten up cracking of upper clamping piece upward and downward, upper clamping piece is locked left hand handle And right handgrip so that left hand handle and right handgrip are fixed and can not be rotated；Lower latch fitting is made up of lower clamping piece and clamping screw, lower clamping piece Being the blank of an aluminium extruded type, the two ends, left and right of lower clamping piece front portion are respectively arranged with the circular hole of a upward and downward, about the two of lower clamping piece front portion To circular hole on be connected with cracking of upward and downward, the left end in the middle part of lower clamping piece has the square hole of a upward and downward, the centre at lower clamping piece rear portion Having a circular hole of a upward and downward, the anterior centre of lower clamping piece has one to crack with lower clamping piece front portion upward and downward vertical longitudinal hole, lower folder The rear end of part longitudinal hole connects the stop nut of a clamping screw, the square hole of left end upward and downward and front fork pipe in the middle part of lower clamping piece Upper end connects, and front fork is made up of Five-way tube component, square tube, square column and front axle, and the middle part of square tube connects Five-way tube component, square tube Bottom pore in fill in square column, the horizontal of square tube bottom has a cross-perforating together with square column, and front axle penetrates the bottom of square tube With in the cross-perforating of square column, and win to the right, left hand in the circular hole penetrating two ends, lower clamping piece left and right upward and downward with right handgrip, Clamping screw penetrates in the longitudinal hole of lower clamping piece, and is screwed in stop nut, and tightening clamping screw, to tighten up lower clamping piece upper and lower To crack, lower clamping piece is locked left hand handle and right handgrip so that left hand handle and right handgrip are fixed and can not be slided up and down, handle It is connected to left hand the top with right handgrip, and is positioned at the top of upper clamping piece；Side arm is made up of rotary part and front-axle beam, rotating part Part is installed on the upward and downward circular hole in the middle of lower clamping piece rear portion, and front-axle beam is the slice processing part of aluminium extruded type, and the front end of front-axle beam is groove Type, the both sides up and down of front-axle beam grooved have mutual to perforation, and the upper and lower of front-axle beam rear end is respectively arranged with a horizontal perforation, front-axle beam grooved Mutual to being punched through lock bolt is connected rotary part；Middle frame includes twin beams pipe, the first two-tube set, rear casing, vexed after two Lid, the first latch hook member, the second latch hook member, left spacer block, right spacer block and tow wheel, twin beams pipe is made up of left and right two flat tube, double The front end close-fitting of beam pipe is socketed the first two-tube set, and the first two-tube set is the slice processing part of an aluminium extruded type, the first two-tube set top Having two slotted holes, two slotted holes of the first two-tube set are corresponding with the cast of left and right two flat tube of twin beams pipe, the first two-tube set The grooved that Open Side Down is arranged at bottom, and the both sides of the first two-tube set Open Side Down grooved have mutual to perforation, the first two-tube set The mutual perforation to being punched through horizontal below lock bolt and front-axle beam rear end is rotationally connected, and rear casing is cutting of an aluminium extruded type Section workpiece, left and right two slotted holes are arranged at the bottom of rear casing, and the left side of the left slotted hole of rear casing is connected with opening grooved to the left, after The right side of the right slotted hole of pipe box is connected with opening grooved to the right, left and right two slotted hole of rear casing and left and right two flat tube of twin beams pipe Cast corresponding, the top of rear casing has the grooved of opening upwards, the front end of rear casing opening upwards grooved both sides to have one Mutual to perforation, the front-end and back-end of the upper and lower both sides of rear casing opening grooved to the left respectively have one mutual to perforation, after It is mutual to perforation, after after two, boring cover is filled in respectively that the front-end and back-end of the upper and lower both sides of pipe box opening grooved to the right respectively have one The rear end of two slotted holes about pipe box, to lock bolt penetrate rear end, rear casing opening grooved to the left upper and lower both sides mutual to wearing Hole neutralizes in the vertical hole of latch hook of the first latch hook member, is turned with rear casing opening grooved rear end to the left by the latch hook of the first latch hook member Be dynamically connected, to lock bolt penetrate rear end, rear casing opening grooved to the right upper and lower both sides mutual to perforation neutralize the second latch hook member The vertical hole of latch hook in, the latch hook of the second latch hook member is connected with rear casing opening grooved rear end thereof to the right, left spacer block Being fixedly connected on the middle part of rear casing opening grooved to the left, right spacer block is fixedly connected on rear casing opening grooved to the right Middle part, the first latch hook member and the second latch hook member are all made up of latch hook and latch hook spring, and a bolt penetrates the first latch hook member latch hook In elongated hole, and penetrate in latch hook spring, then in the twist-on hole of the left side boring cover being screwed into boring cover after two, the lock of the first latch hook member Being hooked in the interlocking bolt on the effect lower energy left back fork of hook lock of latch hook spring, a bolt penetrates the elongated hole of the second latch hook member latch hook In, and penetrate in latch hook spring, then in the twist-on hole of the right boring cover being screwed into boring cover after two, the latch hook of the second latch hook member exists Interlocking bolt on the effect lower energy right back vent of hook lock of latch hook spring；Left back fork is that each close-fitting in the two ends by left back breeches pipe is plugged with one The vexed plug of hard, is then furnished with twist-on interlocking bolt and left rear axle forms, and the front end of left back breeches pipe is inconjunction with the vexed plug of hard and has one Vertical perforation, the rear end of left back breeches pipe is inconjunction with the vexed plug of hard and has a horizontal perforation, horizontal the wearing in left back breeches pipe rear end In hole, close-fitting penetrates a left rear axle, and the right flank of left back breeches pipe leading section is screwed with an interlocking bolt, and the one of left back fork front end erects To be punched through lock bolt is rotationally connected with rear casing opening grooved front end to the left, by driving the latch hook of the first latch hook member, Left back fork can fold to left front, and right back vent is that each close-fitting in the two ends by right back breeches pipe is plugged with a vexed plug of hard, is then furnished with stubborn Connecing interlocking bolt and right rear axle forms, the front end of right back breeches pipe is inconjunction with the vexed plug of hard and has a vertical perforation, right back breeches pipe Rear end be inconjunction with the vexed plug of hard and have a horizontal perforation, after close-fitting penetrates a right side in the perforation that right back breeches pipe rear end is horizontal Axle, the left surface of right back breeches pipe leading section is screwed with an interlocking bolt, vertical being punched through lock spiral shell of right back vent front end Bolt and rear casing opening grooved front end to the right is rotationally connected, and by driving the latch hook of the second latch hook member, right back vent can be rolled over to right front Folded；Vehicle seat includes seat pipe, vehicle seat folded piece, the 3rd latch hook member, seat bar, saddle and folding locator card, and vehicle seat folded piece is by diplopore Type connects part, connecting rod and U-shaped plug, and diapsid connects part and is fastened to the front side of seat pipe lower end, and diapsid connects circular hole and the rear casing groove of part Mutual be rotationally connected perforation in front end, type both sides, the rearward end of connecting rod connects the slotted hole of part and is connected with diapsid, and U-shaped plug is filled in In the slotted hole of ring part, and it is positioned at the lower section in rod rear end portion, the wearing laterally over of two front ends of connecting rod and front-axle beam rear end Hole connects, and the front side of seat pipe lower end connects has the grooved of the second latch hook member to connect part, and the latch hook of the 3rd latch hook member and grooved connect part two Mutual connect perforation in side, the 3rd latch hook member is connected part, latch hook, latch hook spring and interlocking bolt and constitutes by grooved, interlocking bolt Being fastened on rear casing in the screwed hole of the front of bottom land, a bolt penetrates in the elongated hole of the 3rd latch hook member, and penetrates into lock In hook spring, then being screwed in seat pipe, the latch hook of the 3rd latch hook member can be with the semicircle of interlocking bolt by the effect of interlocking spring Head interlocking, connects in the pore at seat pipe top, and seat bar is installed saddle, folds locator card and is connected to the first two-tube set back upper place； Front-wheel is installed on front axle, and left rear wheel is installed in left rear axle, and off hind wheel is installed on right rear axle, opens header board the 3rd latch hook member Latch hook, and by vehicle seat collapsed forward, under the effect of connecting rod, vehicle seat is inconjunction with side arm, flexible handle, front fork together with front-wheel Fold to the lower section of middle frame, reach perfect folding effect, and under the effect folding locator card engaging seat pipe, by vehicle seat, front Frame, flexible handle, front fork are fixed on folded state together with middle frame；Drive mechanism includes axis, two cranks, chain wheel, bipod Pedal, flywheel and chain, central axis is connected in Five-way tube component, and two cranks are installed on the two ends of axis, and chain wheel is fixing to be connected On crank on the right of two cranks, flywheel is connected to the right side of front-wheel, and chain is wire-wrapped on chain wheel and flywheel.

The invention has the beneficial effects as follows: the present invention ingenious cooperation by aluminium extrusion so that whole vehicle frame does not all have electricity Weldering welding, represents a kind of new trend of the manufacturing process of bicycle；The handlebar of the present invention uses the form of flexible handle so that The folding of handlebar reaches the simplest, and reaches most effective；Front fork is connected to the upward and downward side of the right-hand member in the middle part of lower clamping piece Kong Zhong so that front fork has been accomplished ultimate attainment simple and can coordinate maximally effective folding；The front tumbler of the present invention uses grooved Part and the cooperation of the rotary part being connected to lower clamping piece rear portion, include plane bearing and shock-absorbing polyurethane cylinder in rotary part, Make front tumbler both simple and effective and also there is incabloc function；Use left back fork to left front and the folding of middle frame, right back vent Folding to right front and middle frame, vehicle seat folds with middle frame and side arm linkage, has reached minimizing and optimization of frame folding.

Accompanying drawing illustrates:

Fig. 1 is present configuration schematic diagram；

Fig. 2 is that the present invention stretches the expansion schematic diagram of handle；

Fig. 3 is that the present invention stretches the gathering schematic diagram of handle；

Fig. 4 is front-axle beam of the present invention and the structural representation of both sides sheet；

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

Fig. 6 is that the present invention folds complete figure；

In figure: 1 stretches handle, fork before 2,3 side arms, frame in 4,51 left back forks, 52 right back vents, 6 vehicle seats, 71 front-wheels, 72 left rear wheels, 73 off hind wheels, 8 drive mechanisms；Its In flexible handle 1 also include: 11 left hand handles, 12 right handgrips, latch fitting on 13,14 times latch fittings, 15 Handle；Middle frame 4 also includes: 41 twin beams pipes, 42 first two-tube sets, 43 rear casings；Vehicle seat 6 also includes: vehicle seat 6 Also include: 61 seat pipe, 62 vehicle seat folded pieces, 63 the 3rd latch hook member, 64 bars, 65 saddles.

Detailed description of the invention:

According to Fig. 1, Fig. 2 and Fig. 4, the described flexible portable tricycle of handle type, including flexible handle 1, front fork Part 2, side arm 3, middle frame 4, left back fork 51, right back vent 52, vehicle seat 6, front-wheel 71, trailing wheel 72 and drive mechanism system 8；

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

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

Described lower latch fitting 14 is made up of lower clamping piece and clamping screw, and described lower clamping piece is the blank of an aluminium extruded type, The two ends, left and right of described lower clamping piece front portion are respectively arranged with the circular hole of a upward and downward, on the circular hole of two upward and downwards that described lower clamping piece is anterior also Being connected with cracking of upward and downward, the left end in the middle part of described lower clamping piece has the square hole of a upward and downward, and in the middle part of described lower clamping piece, left end is upper Lower corresponding with the square tube of described front fork 2 to square hole, the upward and downward square hole of left end and described front fork 2 side in the middle part of described lower clamping piece The upper end close-fitting socket of pipe, the centre at described lower clamping piece rear portion have the circular hole of a upward and downward, the centre of described lower clamping piece have one with Lower clamping piece upward and downward cracks vertical longitudinal hole, and the rear end of described lower clamping piece longitudinal hole is connected with the locking spiral shell of clamping screw described in Mother, described left hand penetrates 11 and described right handgrip 12 in the circular hole of two ends, described lower clamping piece left and right upward and downward, described Clamping screw penetrates in the longitudinal hole of described lower clamping piece, and is screwed in stop nut, tightens described clamping screw and can tighten up down Cracking of folder upward and downward, by the left hand described in described lower clamping piece locking 11 and described right handgrip 12 so that described Left hand is fixed 11 and described right handgrip 12 and can not slide up and down.

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

Described front fork 2 is made up of Five-way tube component, square tube, square column and front axle, and Five-way tube component is by Five-way tube and embraces Fitting is constituted, and Five-way tube is the cut-out workpiece of shape of a hoof aluminium extruded type pipe, and the left side of Five-way tube frontal plane has four backward Screwed hole, the bottom pore of square tube fills in square column, the bottom of pipe to and have the cross-perforating, amplexis part to be together with square column Opening grooved parts backward, the grooved of amplexis part is corresponding with square tube close-fitting, the right and left of amplexis part grooved have one up and down Longitudinal hole, four holes of the right and left of amplexis part grooved longitudinal direction up and down are relative with four, Five-way tube left side screwed hole backward Answering, and amplexis part and Five-way tube are fixedly connected on by four bolts the middle part of square tube, in the pore of square tube bottom, close-fitting is filled in Square column, the horizontal of square tube bottom has a cross-perforating together with square column, and front axle penetrates the bottom of square tube and the cross-perforating of square column In and win to the right.

Described side arm 3 includes rotary part, front-axle beam and both sides sheet, and described rotary part includes front axle tube, two deep Ditch bearing, a plane bearing and have a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore is respectively milled with places rotation zanjon bearing Counterbore, front axle tube close-fitting from bottom to top is pressed in the upward and downward circular hole in the middle of described lower clamping piece rear portion, and two zanjon bearings are inlayed respectively Being embedded in the counterbore of front axle tube upper and lower side, plane bearing is lining on the zanjon bearing of described front axle tube upper end, then by poly-for shock-absorbing ammonia Ester cylinder is put on plane bearing, shock-absorbing polyurethane cylinder axially have a hole, and by the endoporus of two zanjon bearings, plane bearing Axis hole and the hole of shock-absorbing polyurethane cylinder, corresponding to the upper and lower two sides of grooved, described front-axle beam front end mutual to perforation, with to lock The grooved of described tumbler with described front-axle beam is connected by bolt, and described front-axle beam is the slice processing part of aluminium extruded type, described before The front end of beam is grooved, the upper and lower of rear end is respectively arranged with a horizontal perforation, there is reinforcement at middle part, above described front-axle beam rear end in Between have a grooved gap, the vertical phase of cross-perforating above the grooved gap above described front-axle beam rear end and described front-axle beam rear end Handing over, the corner of described front-axle beam reinforcement is respectively arranged with a circular hole, and tapping becomes screwed hole in the circular hole of described front-axle beam reinforcement corner, The both sides up and down of described front-axle beam grooved have mutual to perforation, and the both sides up and down of described front-axle beam grooved strike out fillet, limit sheet Being by the rectangular patch of plastic injection, the corner of limit sheet rectangle is respectively arranged with a hole, the hole of sheet rectangle corner, limit and described front-axle beam The screwed hole of reinforcement corner is corresponding, and both sides sheet is connected to the right and left of described front-axle beam by bolt.

Described middle frame 4 include twin beams pipe the 41, first two-tube set 42, rear casing 43, rear boring cover, the first latch hook member, second Latch hook member, left spacer block and right spacer block, described twin beams pipe 41 is made up of left and right two flat tube, and the front end of described twin beams pipe 41 is tight The supporting two-tube set of described first 42 that connects, the first described two-tube set 42 is the slice processing part of an aluminium extruded type, described first Two slotted holes, two slotted holes of described first two-tube set 42 and left and right two flat tube of described twin beams pipe 41 are arranged at two-tube set 42 top Cast is corresponding, and described first two-tube set 42 is respectively arranged with even limit, a described first two-tube set 42 between two slotted holes up and down Bottom have the grooved that Open Side Down, the both sides of described first two-tube set 42 Open Side Down grooved have mutual to perforation, institute The two sides stating the first two-tube set 42 Open Side Down grooved strike out fillet, between described first 42 liang of slotted holes of two-tube set on connect Left and right on the face on limit has the hole of two upward and downwards, described first two-tube set 42 mutual to being punched through lock bolt and institute State perforation horizontal below front-axle beam rear end to be rotationally connected.

Described rear casing 43 is the cutting workpiece of an aluminium extruded type, and the bottom of described rear casing 43 has left and right two oval Hole, two slotted holes of described rear casing 43 are corresponding with the cast of left and right two flat tube of described twin beams pipe 41, described rear casing 43 Being respectively arranged with an even limit up and down between two slotted holes, the left side of the described left slotted hole of rear casing 43 is connected with opening groove to the left Type, the right side of the described right slotted hole of rear casing 43 is connected with opening grooved to the right, left and right two slotted hole of described rear casing 43 with The cast of left and right two flat tube of described twin beams pipe 41 is corresponding, and the grooved of opening upwards is arranged at the top of described rear casing 43, described The front end of rear casing 43 opening upwards grooved both sides has one mutual to perforation, between 43 liang of slotted holes of described rear casing on connect The rear end on limit has the screwed hole of upward and downward, and the front-end and back-end of the described rear casing 43 opening upper and lower both sides of grooved to the left are respectively opened Having one mutual to perforation, it is mutual that the front-end and back-end of the described rear casing 43 opening upper and lower both sides of grooved to the right respectively have one To perforation, the rear boring cover described in two fills in the rear end of two slotted holes about rear casing respectively, and described rear boring cover is that plastics are made The boring cover corresponding with described rear casing about 43 slotted hole, described rear boring cover has a twist-on hole, to lock bolt penetrate Described rear casing 43 opening rear end, grooved upper and lower both sides to the left mutual to perforation neutralize described first latch hook member latch hook erect Xiang Kongzhong, is connected the rear end thereof of the latch hook of described first latch hook member and described rear casing 43 opening grooved to the left, to lock Bolt penetrate described rear casing 43 opening rear end, grooved upper and lower both sides to the right mutual to perforation neutralize described second latch hook member The vertical hole of latch hook in, the latch hook of described second latch hook member is connected with rear casing opening grooved rear end thereof to the right, described The first latch hook member and the second described latch hook member be all made up of latch hook and latch hook spring, latch hook is the sliced pieces of an aluminium extruded type, With a vertical collar aperture in the middle part of latch hook, one end of latch hook is hook-type, and the other end of latch hook is a handle, and the handle of latch hook is opened There are elongated hole, the first described latch hook member and the second described latch hook member all to include two bushing pipes, are connected to described rear casing 43 and open The latch hook of mouth described first latch hook member of grooved rear end to the left, and it is connected to the institute of described rear casing 43 opening grooved rear end to the right Stating the latch hook of the second latch hook member, be respectively lined with a bushing pipe, described left spacer block is by bolt and described rear casing 43 opening The middle part of grooved to the left connects, and described right spacer block is connected by the middle part of bolt and rear casing opening grooved to the right, Described left spacer block and described right spacer block are all the trapezoid blocks that plastics are made, and a bolt penetrates described first latch hook member lock In the elongated hole of hook, and penetrate in latch hook spring, then be screwed into place in described rear casing 43 left slotted hole rear end described after the most vexed In the twist-on hole of lid, the latch hook of described first latch hook member is the interlocking on left back fork 51 described in energy hook lock under the effect of latch hook spring Bolt, a bolt penetrates in the elongated hole of described second latch hook member latch hook, and penetrates in latch hook spring, then is screwed into place in described In the twist-on hole of the described rear boring cover of rear casing 43 right slotted hole rear end, the latch hook of described second latch hook member is at the work of latch hook spring With the interlocking bolt on right back vent 52 described in lower energy hook lock.

Described left back fork 51 includes left back breeches pipe, the two vexed plugs of hard, rear axle and interlocking bolt, before described left back breeches pipe The each close-fitting in rear two ends is plugged with a vexed plug of hard, and the front end of described left back breeches pipe is inconjunction with the vexed plug of hard and has a vertical perforation, The rear end of described left back breeches pipe is inconjunction with the vexed plug of hard and has a horizontal perforation, tight in the perforation that described left back fork rear end is horizontal Wear into a left rear axle, the right flank of described left back breeches pipe leading section is screwed with an interlocking bolt, described left back fork 51 front end Lock bolt is rotationally connected, by opening described first by one vertical being punched through with described rear casing 43 opening grooved front end to the left The latch hook of latch hook member, described left back fork 51 can fold to left front, and described right back vent 52 includes that right back breeches pipe, two hard are vexed Plug, rear axle and interlocking bolt, be plugged with a vexed plug of hard by each close-fitting in described right back breeches pipe rear and front end, before described right back breeches pipe End is inconjunction with the vexed plug of hard and has a vertical perforation, and the rear end of described right back breeches pipe is inconjunction with the vexed plug of hard, and to have one horizontal Perforation, in the perforation that described right back breeches pipe rear end is horizontal, close-fitting penetrates a right rear axle, the left surface of described right back breeches pipe leading section On be screwed with an interlocking bolt, be fastened to the interlocking bolt of right flank of described left back breeches pipe leading section and be fastened to described right back vent The interlocking bolt of the left surface of pipe leading section, is all button-headed bolt, and a vertical perforation of described right back breeches pipe 52 front end is led to Cross and lock bolt is rotationally connected with described rear casing 43 opening grooved front end to the right, by the lock opening described second latch hook member 47 Hook, described right back vent 52 can fold to right front.

Described vehicle seat 6 includes that seat pipe 61, vehicle seat folded piece the 62, the 3rd latch hook member 63, seat bar 64, saddle 65 and folding are fixed Position card, in the pore of described seat pipe 61 lower end, close-fitting fills in a thick-walled tube, described seat pipe 61 bottom leading flank upper and lower The thick-walled tube filled in related with trailing flank upper, middle and lower respectively has a screwed hole, the upper end of described seat pipe 61 have one vertical Cracking, the upper end of described seat pipe 61 is socketed a pipe clamp, and described seat bar 64 is the pipe that upper bend is at a right angle, described seat bar In 64 pores penetrating described seat pipe 61 upper end, and tighten up cracking of described seat pipe 61 upper end with pipe clamp, by described seat bar 64 Fixing with described seat pipe 61, described saddle 64 is installed on the front end of described seat bar 64.

Described vehicle seat folded piece 62 is connected part, connecting rod and U-shaped plug and constitutes by diapsid, and it is an aluminium extruded type that diapsid connects part Sliced pieces, diapsid connects the upper end of part has a slotted hole, lower end to have a circular hole, and diapsid connects part and is positioned at the vertical of long collar aperture and has one Mutual to perforation, diapsid connects part and is positioned at above circular hole the hole having a longitudinal direction, and diapsid is connected the longitudinal hole of part and twisted by bolt Being connected on front side of described seat pipe 61 bottom in lower screwed hole, diapsid connects the circular hole of part by lock bolt and described rear casing 43 Mutual be rotationally connected perforation in front end, grooved both sides, connecting rod is made up of connecting rod bending part and two connecting rod lining rings, connecting rod bending part It is to be bent into front by a metal round rod to form with the rectangle frame of opening, the two leading sections bending still further below of rectangle frame, connecting rod The two ends of the inside bending of rectangle frame are all drilled with perforation, and connecting rod bending part penetrates in diapsid connects the slotted hole of part, and makes connecting rod The rearward end of bending part is positioned at the top that diapsid connects the slotted hole of part, and U-shaped plug fills in the lower section of the slotted hole of ring part, and position In the lower section of connecting rod bending part rearward end, U-shaped plug is a nylon plug, and the upper side of U-shaped plug has the bar footpath phase with connecting rod bending part Corresponding arc groove, U-shaped also have a longitudinally perforation beyond the Great Wall, and longitudinal direction perforation and the diapsid of U-shaped plug connects part and be positioned at long collar aperture and hang down Corresponding to mutual perforation, by screw, U-shaped plug is positioned in the long collar aperture that diapsid connects part, and diapsid is connected part Upper end and described seat pipe 61 bottom on front side of in screwed hole fix, the two ends of the inside bending in front end of connecting rod penetrate before described In the perforation laterally over of beam rear end, and the grooved gap above described front-axle beam rear end wins, by two connecting rod lining ring sets It is connected to the front end of connecting rod be positioned at above described front-axle beam rear end grooved gap is won on the two ends, and hammers into connecting rod square with two pins The perforation at shape frame inside bending two ends positions.

The 3rd described latch hook member 63 is connected part, latch hook, latch hook spring and interlocking bolt and constitutes by grooved, and it is groove that grooved connects part The cut-out workpiece of the aluminium extruded type of type, grooved connects the left and right sides of part grooved and has one mutual to perforation, and grooved connects the end before part Face respectively have a hole, grooved connect on front side of the holes up and down of the front bottom surface of part and described seat pipe 61 bottom under two Screwed hole is corresponding, and grooved is connected part and is connected on front side of described seat pipe 61 bottom by two bolts, described 3rd latch hook member 63 The shape of latch hook is similar with the latch hook of described first latch hook member 46, and the transverse holes of described 3rd latch hook member 63 latch hook is by lock spiral shell Bolt connects mutual be connected perforation in part both sides with grooved, and interlocking bolt is the bolt of a cup head, and interlocking bolt is fastened to described Connect between 43 liang of slotted holes of rear casing limit front upper and lower to screwed hole in, a bolt penetrates described 3rd latch hook member 63 latch hook Elongated hole in, and penetrate in latch hook spring, then be screwed on front side of described seat pipe 61 bottom in upper screwed hole, described 3rd lock The latch hook of hook 63 can be with the cup head interlocking of interlocking bolt by the effect of interlocking spring, and described folding locator card is by U-shaped Nylon card and metal in flakes, have two connecting holes bottom U-shaped nylon card, and metal is respectively arranged with a hole about front portion in flakes, metal in flakes after Being respectively arranged with a hole about portion, the holes at metal rear portion in flakes is connected with two connecting holes bottom U-shaped nylon card by bolt and nut, gold Belong to anterior in flakes holes by connecting left and right on face, limit between bolt and nut, and described first 42 liang of slotted holes of two-tube set The hole of two upward and downwards connects.

Described front-wheel 71 is the wheel of 8 inches, and described front-wheel 71 is installed on front axle, and described left rear wheel 72 is 8 English Very little wheel, described left rear wheel 72 is installed in left rear axle, and described off hind wheel 73 is 8 inches of wheels, and described off hind wheel 73 is installed On right rear axle, described drive mechanism 8 includes axis, two cranks, chain wheel, two pedals, flywheel and chain, and described axis leads to Crossing axis accessory to be connected in Five-way tube, the crank described in two is installed on the two ends of described axis, and described chain wheel is fixing to be connected On the right crank of crank described in two, the pedal described in two is connected on the crank described in two, and described flywheel connects In the right side of front-wheel 71, described chain is wire-wrapped on described chain wheel and described flywheel.

Claims (10)

1. the flexible portable tricycle of handle type, including flexible handle, front fork, side arm, middle frame, left back fork, the right side Back vent, vehicle seat, front-wheel, left rear wheel, off hind wheel and drive mechanism, is characterized in that: flexible handle include left hand handle, right handgrip, on Latch fitting, lower latch fitting and handle, left hand is being to be formed as right-angle bending by the upper end of pipe with right handgrip, and left hand handle and right handgrip are straight Outside below at angular distortion has screwed hole, and upper latch fitting is made up of upper clamping piece, banking stop and clamping screw, the left and right of upper clamping piece Two ends are respectively arranged with the circular hole of a upward and downward, and the circular hole of two upward and downwards of upper clamping piece is also connected with cracking of upward and downward, and upper clamping piece is upper and lower Respectively have the screwed hole of a upward and downward to the left and right cracked rearward, upper clamping piece upward and downward cracks the spiral shell of left and right two upward and downward rearward Two bolt twist-on one banking stops are passed through in the bottom of pit, allow banking stop be connected to the bottom side of upper clamping piece, and the centre of upper clamping piece has one Crack vertical longitudinal hole with upper clamping piece upward and downward, and the rear end of upper clamping piece longitudinal hole connects the stop nut of a clamping screw, left Hands is in the circular hole penetrating two ends, upper clamping piece left and right upward and downward with right handgrip, and by below at left hand handle and right handgrip right-angle bending Screwed hole corresponding to the bottom side of upper clamping piece, with two bolts be screwed into respectively left hand with right handgrip right-angle bending at below spiral shell In pit, by left hand spacing with what right handgrip and upper clamping piece work rotated, clamping screw penetrates in the longitudinal hole of upper clamping piece, and twists Enter in stop nut, tighten clamping screw and can tighten up cracking of upper clamping piece upward and downward；Lower latch fitting is by lower clamping piece and clamping screw Constituting, the two ends, left and right of lower clamping piece front portion are respectively arranged with the circular hole of a upward and downward, and the circular hole of two upward and downwards that lower clamping piece is anterior is connected with Cracking of upward and downward, the left end in the middle part of lower clamping piece has the square hole of a upward and downward, the centre at lower clamping piece rear portion to have the circle of a upward and downward Hole, the anterior centre of lower clamping piece has one to crack with lower clamping piece front portion upward and downward vertical longitudinal hole, the rear end of lower clamping piece longitudinal hole Connecting the stop nut of a clamping screw, in the middle part of lower clamping piece, the square hole of left end upward and downward is connected with the upper end of front fork pipe, front fork Part is made up of Five-way tube component, square tube, square column and front axle, and the middle part of square tube connects Five-way tube component, in the bottom pore of square tube Filling in square column, the horizontal of square tube bottom has a cross-perforating together with square column, and front axle penetrates the bottom of square tube and the horizontal of square column In perforation, and winning to the right, left hand is in the circular hole penetrating two ends, lower clamping piece left and right upward and downward with right handgrip, and clamping screw penetrates In the longitudinal hole of lower clamping piece, and it is screwed in stop nut, tightens clamping screw and can tighten up cracking of lower clamping piece upward and downward, handle It is connected to left hand the top with right handgrip, and is positioned at the top of upper clamping piece；Side arm is made up of rotary part and front-axle beam, rotating part Part is installed on the upward and downward circular hole in the middle of lower clamping piece rear portion, and the front end of front-axle beam is grooved, and there is phase the both sides up and down of front-axle beam grooved Mutual to perforation, the upper and lower of front-axle beam rear end is respectively arranged with a horizontal perforation, front-axle beam grooved mutual to being punched through lock bolt Connect rotary part；Middle frame include twin beams pipe, the first two-tube set, rear casing, boring cover after two, the first latch hook member, the second latch hook member, Left spacer block, right spacer block and tow wheel, twin beams pipe is made up of left and right two flat tube, and it is two-tube that the front end close-fitting of twin beams pipe is socketed first Set, two slotted holes are arranged at the first two-tube set top, the cast phase of two slotted holes of the first two-tube set and left and right two flat tube of twin beams pipe Correspondence, the grooved that Open Side Down is arranged at the bottom of the first two-tube set, and the both sides of the first two-tube set Open Side Down grooved have mutual To perforation, the first two-tube set mutual to being punched through horizontal perforation below lock bolt and front-axle beam rear end is rotationally connected, after Left and right two slotted holes are arranged at the bottom of pipe box, and the left side of the left slotted hole of rear casing is connected with opening grooved to the left, and the rear casing right side is oval The right side in hole is connected with opening grooved to the right, and left and right two slotted hole of rear casing is relative with the cast of left and right two flat tube of twin beams pipe Should, it is mutual to wearing that the top of rear casing has the grooved of opening upwards, the front end of rear casing opening upwards grooved both sides to have one Hole, the front-end and back-end of the upper and lower both sides of rear casing opening grooved to the left respectively have one mutual to perforation, rear casing opening to The front-end and back-end of the right upper and lower both sides of grooved respectively have one mutual to perforation, and after two, boring cover fills in about rear casing two respectively The rear end of slotted hole, to lock bolt penetrate rear end, rear casing opening grooved to the left upper and lower both sides mutual to perforation neutralization first In the vertical hole of latch hook of latch hook member, the latch hook of the first latch hook member is connected with rear casing opening grooved rear end thereof to the left, right The latch hook that perforation neutralizes the second latch hook member that lock bolt penetrates rear end, rear casing opening grooved to the right upper and lower both sides mutual erects Xiang Kongzhong, is connected the latch hook of the second latch hook member with rear casing opening grooved rear end thereof to the right, and left spacer block is fixing to be connected In the middle part of rear casing opening grooved to the left, right spacer block is fixedly connected on the middle part of rear casing opening grooved to the right, the One latch hook member and the second latch hook member are all made up of latch hook and latch hook spring, and a bolt penetrates in the elongated hole of the first latch hook member latch hook, And penetrate in latch hook spring, then in the twist-on hole of the left side boring cover being screwed into boring cover after two, the latch hook of the first latch hook member is at lock Interlocking bolt on the effect lower energy left back fork of hook lock of hook spring, a bolt penetrates in the elongated hole of the second latch hook member latch hook, and wears Enter in latch hook spring, then in the twist-on hole of the right boring cover being screwed into boring cover after two, the latch hook of the second latch hook member is at latch hook bullet Interlocking bolt on the effect lower energy right back vent of hook lock of spring；It is vexed that left back fork is that each close-fitting in the two ends by left back breeches pipe is plugged with a hard Plug, is then furnished with twist-on interlocking bolt and left rear axle forms, and the front end of left back breeches pipe is inconjunction with the vexed plug of hard, and to have one vertical Perforation, the rear end of left back breeches pipe is inconjunction with the vexed plug of hard and has a horizontal perforation, tight in the perforation that left back breeches pipe rear end is horizontal Wear into a left rear axle, the right flank of left back breeches pipe leading section is screwed with an interlocking bolt, vertical wearing of left back fork front end Hole is by being rotationally connected with rear casing opening grooved front end to the left lock bolt, by driving the latch hook of the first latch hook member, and left back fork Can fold to left front, right back vent is that each close-fitting in the two ends by right back breeches pipe is plugged with a vexed plug of hard, is then furnished with twist-on interlocking Bolt and right rear axle form, and the front end of right back breeches pipe is inconjunction with the vexed plug of hard and has a vertical perforation, the rear end of right back breeches pipe Being inconjunction with the vexed plug of hard and have a horizontal perforation, in the perforation that right back breeches pipe rear end is horizontal, close-fitting penetrates a right rear axle, behind the right side An interlocking bolt it is screwed with, vertical being punched through lock bolt and rear pipe of right back vent front end on the left surface of breeches pipe leading section Set opening grooved front end to the right is rotationally connected, and by driving the latch hook of the second latch hook member, right back vent can fold to right front；Vehicle seat bag Including seat pipe, vehicle seat folded piece, the 3rd latch hook member, seat bar, saddle and folding locator card, vehicle seat folded piece is connected part, company by diapsid Bar and U-shaped plug, diapsid connects part and is fastened to the front side of seat pipe lower end, and diapsid connects circular hole and the front end, rear casing grooved both sides of part Mutual is rotationally connected perforation, and the rearward end of connecting rod connects the slotted hole of part and is connected with diapsid, and the length of ring part filled in by U-shaped plug In circular hole, and being positioned at the lower section in rod rear end portion, two front ends of connecting rod are connected with the perforation laterally over of front-axle beam rear end, seat pipe The front side of lower end connects has the grooved of the second latch hook member to connect part, the latch hook of the 3rd latch hook member and grooved connect part both sides mutual to wearing Hole connects, and the 3rd latch hook member is connected part, latch hook, latch hook spring and interlocking bolt and constitutes by grooved, and interlocking bolt is fastened to rear casing In the screwed hole of the front of upper bottom land, a bolt penetrates in the elongated hole of the 3rd latch hook member, and penetrates in latch hook spring, then twists Entering in seat pipe, the latch hook of the 3rd latch hook member can be with the cup head interlocking of interlocking bolt by the effect of interlocking spring, seat pipe top The pore in portion connects, seat bar is installed saddle, fold locator card and be connected to the first two-tube set back upper place；Before front-wheel is installed on Axle, left rear wheel is installed in left rear axle, and off hind wheel is installed on right rear axle；Drive mechanism include axis, two cranks, chain wheel, two Pedal, flywheel and chain, central axis is connected in Five-way tube component, and two cranks are installed on the two ends of axis, and chain wheel is fixing even Being connected on the crank on the right of two cranks, flywheel is connected to the right side of front-wheel, and chain is wire-wrapped on chain wheel and flywheel.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: described left hand handle and described The screwed hole of right handgrip corresponds respectively to the bottom side of described upper latch fitting upper clamping piece, described left hand handle and described right handgrip lower end side After screwed hole is screwed into bolt, can be as described left hand sliding up and down with described right handgrip and described lower latch fitting lower clamping piece Spacing, be connected to the described banking stop of described upper clamping piece bottom side, be connected to described left hand and described right handgrip on two spiral shells Bolt coordinates, can be as spacing when launching with described right handgrip of described left hand.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: described upper clamping piece longitudinal hole Rear end be connected with a counterbore, the counterbore of described upper clamping piece is inlayed the stop nut of clamping screw described in, described locking screw Bolt is by bolt and screws handle and is formed by connecting, and described clamping screw also includes stop nut, left end in the middle part of described lower clamping piece Upward and downward square hole is corresponding with the square tube of described front fork, the upward and downward square hole of left end and described front fork side in the middle part of described lower clamping piece The upper end close-fitting socket of pipe, described handle is a working of plastics, and two lower ends of described handle are respectively connected with the circle of a upward and downward, described Aperture and the described left hand of two circle collar aperture of handle and the external diameter of described right handgrip corresponding, the top of described handle is to draw The handle of hands.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: Five-way tube component is by five-way Pipe and amplexis part are constituted, and Five-way tube is the cut-out workpiece of shape of a hoof aluminium extruded type pipe, and the left side of Five-way tube frontal plane has four Individual screwed hole backward, fills in square column in the bottom pore of square tube, the bottom of pipe to and have a cross-perforating together with square column, embrace Fitting is opening grooved parts backward, and the grooved of amplexis part is corresponding with square tube close-fitting, the right and left of amplexis part grooved upper Under have the hole of a longitudinal direction, four holes that the right and left of amplexis part grooved is longitudinal up and down and four, Five-way tube left side screw thread backward Hole is corresponding, and amplexis part and Five-way tube are fixedly connected on the middle part of square tube by four bolts.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: described rotary part bag Having included front axle tube, two zanjon bearings, a plane bearing and had a shock-absorbing polyurethane cylinder, the upper and lower side of front axle tube pore is respectively milled with and puts Putting the counterbore of rotation zanjon bearing, front axle tube close-fitting from bottom to top is pressed in the upward and downward circular hole in the middle of described lower clamping piece rear portion, and two Zanjon bearing is embedded in the counterbore of front axle tube upper and lower side respectively, plane bearing be lining in described front axle tube upper end zanjon bearing it On, then shock-absorbing polyurethane cylinder is put on plane bearing, shock-absorbing polyurethane cylinder axially have a hole, and by two zanjon bearings Endoporus, the axis hole of plane bearing and the hole of shock-absorbing polyurethane cylinder, mutual corresponding to the upper and lower two sides of grooved, described front-axle beam front end To perforation, with to lock bolt, the grooved of described tumbler with described front-axle beam is connected.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: described front-axle beam is aluminium extruded The slice processing part of type, the front end of described front-axle beam is grooved, the upper and lower of rear end is respectively arranged with a horizontal perforation, there is reinforcement at middle part Muscle, the centre above described front-axle beam rear end has a grooved gap, the grooved gap above described front-axle beam rear end and described front-axle beam Cross-perforating above rear end is vertical crossing, and the corner of described front-axle beam reinforcement is respectively arranged with a circular hole, and at described front-axle beam reinforcement In the circular hole of corner, to become screwed hole, the both sides up and down of described front-axle beam grooved to have mutual to perforation in tapping, described front-axle beam grooved Both sides up and down strike out fillet, limit sheet is by the rectangular patch of plastic injection, and the corner of limit sheet rectangle is respectively arranged with a hole, limit The hole of sheet rectangle corner is corresponding with the screwed hole of described front-axle beam reinforcement corner, and is connected to by both sides sheet described by bolt The right and left of front-axle beam.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: described first two-tube set position Being respectively arranged with an even limit up and down between two slotted holes, the two sides of described first two-tube set Open Side Down grooved strike out fillet, Described rear casing is respectively arranged with an even limit between two slotted holes up and down, between described rear casing two slotted hole on connect the rear end on limit Having the screwed hole of upward and downward, it is corresponding with described rear casing left and right slotted hole vexed that described rear boring cover is that plastics are made Lid, described rear boring cover has a twist-on hole, and latch hook is the sliced pieces of an aluminium extruded type, with a vertical collar aperture in the middle part of latch hook, One end of latch hook is hook-type, and the other end of latch hook is a handle, and the handle of latch hook has elongated hole, the first described latch hook member and The second described latch hook member all includes two bushing pipes, is connected to described first latch hook of described rear casing opening grooved rear end to the left The latch hook of part, and it is connected to the latch hook of described second latch hook member of described rear casing opening grooved rear end to the right, respectively it is lined with One bushing pipe.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: described seat pipe lower end In pore, close-fitting fills in a thick-walled tube, the upper and lower and related thickness filled in of trailing flank upper, middle and lower of described seat pipe bottom leading flank Wall pipe respectively has a screwed hole, and the upper end of described seat pipe has vertical cracking, upper end socket one pipe of described seat pipe Folder, described seat bar is the pipe that upper bend is at a right angle, and diapsid connects the sliced pieces that part is an aluminium extruded type, and diapsid connects part Upper end has a slotted hole, lower end to have a circular hole, and diapsid connects part and is positioned at long collar aperture vertical and has one mutual to perforation, diapsid Even part is positioned at above circular hole the hole having a longitudinal direction, and diapsid connects before the longitudinal hole of part is fastened to described seat pipe bottom by bolt Under side in screwed hole.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: connecting rod bending part is by one Metal round rod is bent into front and forms with the rectangle frame of opening, the two leading sections bending still further below of rectangle frame, connecting rod rectangle frame Inwardly the two ends of bending are all drilled with perforation, and connecting rod bending part penetrates in diapsid connects the slotted hole of part, makes connecting rod bending part Rearward end is positioned at the top that diapsid connects the slotted hole of part, and is connected by diapsid on front side of upper end and the described seat pipe bottom of part Middle screwed hole is fixed, and the two ends of the inside bending in front end of connecting rod penetrate in the perforation laterally over of described front-axle beam rear end, and Grooved gap above described front-axle beam rear end wins, two connecting rod lining rings is socketed on after the front end of connecting rod is positioned at described front-axle beam Above end, grooved gap is won on the two ends, and hammer into two pins in the perforation at connecting rod rectangle frame inside bending two ends fixed Position.

The flexible portable tricycle of handle type the most according to claim 1, is characterized in that: it is grooved that grooved connects part The cut-out workpiece of aluminium extruded type, grooved connects the left and right sides of part grooved and has one mutual to perforation, and grooved connects part by two Bolt is connected on front side of described seat pipe bottom, and interlocking bolt is the bolt of a cup head, and described folding locator card is by U-shaped Buddhist nun Long Card and metal in flakes, have two connecting holes bottom U-shaped nylon card, and metal is respectively arranged with a hole about front portion in flakes, metal rear portion in flakes Left and right is respectively arranged with a hole, and the holes at metal rear portion in flakes is connected with two connecting holes bottom U-shaped nylon card by bolt and nut, metal Holes anterior in flakes is by connecting two of left and right on face, limit between bolt and nut, and described first two-tube set two slotted hole The hole of upward and downward connects.