CN206476027U - Stretching handle linkage type foldable scooter - Google Patents

Abstract

A kind of stretching handle linkage type foldable scooter, including quick stretching handle, front fork, side arm, double front-axle beams, fork afterwards, lower link, front running board, bumper step, front wheels and rear wheels, quick stretching handle is by left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle are formed by connecting, side arm is by preceding even part, rotary part connects part with after and is formed by connecting, double front-axle beams are formed by connecting by the rear end and connector of two rectangular tubes, fork connects part by groove profile afterwards and two dropout are formed by connecting, connector and groove profile connect that part is previous mutual to be connected to perforation, lower link connects part lower end transverse holes with after and groove profile connects that part is latter mutual to be connected to perforation, front running board is connected to double front-axle beams, bumper step is connected to rear fork, front-wheel is installed on front fork, trailing wheel is installed on the rear end of two dropout.

Description

Stretching handle linkage type foldable scooter

Technical field

The utility model is related to a kind of Foldable skate-board, more particularly to a kind of stretching handle linkage type foldable scooter.

Background technology

There are many money folding scooters in the market, due to the reason such as structure and construction, can not possibly also reach and put after folding Enter the satisfaction in knapsack.

The content of the invention

The purpose of this utility model is to provide for a kind of handlebar in the new type foldable mode of quick stretching handle type, after having folded Can be put into knapsack --- stretching handle linkage type foldable scooter.What the purpose of this utility model was realized in；It is flexible Linkage type foldable scooter, including quick stretching handle, front fork, side arm, double front-axle beams, rear fork, lower link, front running board, post legged Plate, front wheels and rear wheels, it is characterized in that：Quick stretching handle includes left hand handle, right handgrip, upper latch fitting, lower latch fitting and handle, left hand handle It is to be formed by the upper end of pipe as right-angle bending with right handgrip, left hand with the lower section at right handgrip right-angle bending being respectively provided with screw thread Side with right handgrip bottom is respectively provided with screwed hole by hole, left hand, and upper latch fitting is made up of upper clamping piece and upper Quick Release, a left side for upper clamping piece Respectively there is a circular hole that cracks of a upward and downward at right two ends, and upper clamping piece left and right ends are cracked the cracking towards front, upper clamping piece left end of circular hole There is a left lug forward in the crack left side of cracking of circular hole, and there is forward right convex on the crack right side of cracking of circular hole of upper clamping piece right-hand member There is a projection forward in the middle part of piece, upper clamping piece, there is a mutual transverse direction to wear between the left lug, projection and right lug of upper clamping piece Hole, upper Quick Release is installed in the left lug of upper clamping piece, projection and the mutual cross-perforating of right lug, and left hand handle and right handgrip are penetrated In the circular hole that cracks of upper clamping piece left and right ends upward and downward, and by left hand with right handgrip right-angle bending below screwed hole it is corresponding In the bottom side of upper clamping piece, with two bolts be screwed into respectively left hand with right handgrip right-angle bending below screwed hole in, by a left side Hand with right handgrip and upper clamping piece make to rotate it is spacing, upper Quick Release can tighten up cracking for crack circular hole and the right-hand member of upper clamping piece left end Circular hole, the left hand handle and right handgrip in upper clamping piece are fixed；Lower latch fitting is made up of lower clamping piece and lower Quick Release, before the lower clamping piece left side Respectively there is a circular hole that cracks of a upward and downward front portion on portion and the right, and lower clamping piece left side front portion is cracked the cracking towards front of circular hole, under The anterior circular hole that cracks cracks towards front on the right of folder, and the crack left side of cracking of circular hole of lower clamping piece left side front portion has one forward There is a right lug forward on the right side of cracking of the anterior circular hole that cracks on the right of left lug, lower clamping piece, and the anterior centre of lower clamping piece has one Projection forward, between the left lug, projection and right lug of lower clamping piece, there is a mutual cross-perforating, the lower clamping piece left side Rear portion has the rear portion on the right of the circular hole of a upward and downward, lower clamping piece to have the circular hole of a upward and downward, lower clamping piece left side rear portion upward and downward The circular hole of circular hole and the right rear portion upward and downward is connected with front fork, and left hand handle and right handgrip are penetrated before lower clamping piece left side front portion and the right In the circular hole that cracks of portion's upward and downward, left hand is screwed into respectively with two bolts in the screwed hole with right handgrip bottom, lower Quick Release is installed In the left lug of lower clamping piece, projection and the mutual cross-perforating of right lug, lower Quick Release can tighten up the circle that cracks of lower clamping piece left end Hole and the circular hole that cracks of right-hand member, the left hand and right handgrip in lower clamping piece are fixed, handle be connected to left hand with right handgrip Top, and positioned at the top of upper clamping piece；Side arm by preceding even part, rotary part and after connect part and constitute, the preceding amplexis hole of preceding even part is consolidated Surely it is connected in the middle part of front fork, preceding even part is the cutting off processing part of aluminium extruded type, the front and rear of preceding even part respectively has amplexis hole, rotary part peace Connect before being loaded on the rear amplexis hole of part, after connect the slice processing part that part is aluminium extruded type, after connect part front end be in groove profile, after connect part groove The both sides up and down of type have mutual to perforation, after connect the middle part and lower section of part rear end and respectively have a transverse holes, after to connect part groove profile mutual To be punched through to lock bolt connection rotary part；Double front-axle beams are formed by connecting by the rear end and connector of two rectangular tubes, double The transverse direction of the front end of front-axle beam two has mutual to perforation, and connector is a groove profile stamping, and the two sides of connector groove profile have one mutual To perforation, double front ends of front-axle beam two are laterally mutual to being punched through to lock bolt and before connecting transverse holes in the middle part of part and rotate and connect Connect, double preceding beam connections are mutual to be rotated to being punched through connecting lock bolt and rear fork groove profile the previous mutual of part to perforation Connection；Fork connects part by groove profile afterwards and two dropout are formed by connecting, and it is a groove profile stamping that groove profile, which connects part, and groove profile connects the two sides of part It is front and rear respectively have one mutual to perforation, lower link is the part being made up of metal round rod, and the front end of lower link connects under part with after Transverse holes are held to rotate connection, rear end and the groove profile of lower link connect latter mutual being rotated to perforation of part and be connected；Front running board is connected to Double front-axle beams, fork after bumper step connection, front-wheel is installed on front axle, and trailing wheel is installed on two rear ends of rear fork, and double front-axle beams are upward Fold, in the presence of preceding even part, double front-axle beams, lower link and groove profile connect the four-bar linkage of part composition, double front-axle beams and upper connecting rod are together Folded upward to front fork stem, then fork then fold down, the folding of quick stretching handle in addition reaches perfect folding effect.

The beneficial effects of the utility model are：The ingenious cooperation that the utility model passes through profile piece so that whole vehicle frame base No electric welding in sheet, represents a kind of new trend of the manufacturing process of scooter；Handlebar of the present utility model is using quick The form of stretching handle so that the folding of handlebar reaches both most simply, and reach most effective；Front fork is connected to after lower clamping piece or so In the upward and downward circular hole at end, the upward and downward circular hole of the preceding even front end of part two is fixedly connected on front fork, the upward and downward circle of preceding even part rear end Hole connects rotary part, after connect the front end of part again by being connected to lock bolt with rotary part, allow turning mechanism both simply and Effectively；The front end of double front-axle beams and lower link connects the middle part and lower end of part after being connected to, after connect part, double front-axle beams, lower link and Groove profile connects the four-bar linkage of part composition, realizes two folding effects of four-bar linkage linkage.

Brief description of the drawings：

Fig. 1 is the utility model structural representation；

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

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

Fig. 4 is the utility model folding process schematic diagram；

Fig. 5 is that the utility model folding finishes figure；

In figure：1 --- quick stretching handle, 2 --- rear fork of front fork, 3 --- side arm, 4 --- double front-axle beams, 5 ---, 6 --- lower link, 71 --- front running board, 72 --- bumper step, 81 --- front-wheel, 82 --- trailing wheel；Wherein quick stretching handle 1 is also Including：The upper latch fitting of 11 --- left hand handle, 12 --- right handgrips, 13 ---, 14 --- lower latch fitting, 15 --- handles.

Embodiment：

According to Fig. 1, described stretching handle linkage type foldable scooter, including quick stretching handle 1, front fork 2, side arm 3, it is double before Beam 4, rear fork 5, lower link 6, front running board 71, bumper step 72, front-wheel 81 and trailing wheel 82；

Described quick stretching handle 1 includes left hand 11, right handgrip 12, upper latch fitting 13, lower latch fitting 14 and handle 15, described Left hand 11 and described right handgrip 12 be all to be formed by the upper end of pipe as right-angle bending, the left hand is 11 and the right side Side below at 12 right-angle bendings is respectively provided with a screwed hole by hand, and the left hand is 11 and the side of the bottom of the right handgrip 12 Respectively it is provided with a screwed hole.

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

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

Described lower latch fitting 14 is made up of lower clamping piece and lower Quick Release, and described lower clamping piece is the blank of an aluminium extruded type, Can be that aluminium forges part or aluminium diecasting, respectively there is the circle that cracks of a upward and downward front portion on the lower clamping piece left side and the front portion on the right Hole, lower clamping piece left side front portion is cracked the cracking towards front of circular hole, and the anterior circular hole that cracks cracks on the right of the lower clamping piece Towards front, lower clamping piece left side front portion crack circular hole crack left side have a left lug forward, the lower clamping piece left side is convex The left side of piece is in that the right side of cracking of the anterior circular hole that cracks on the right of arc concave, the lower clamping piece has a right lug forward, it is described under There are a projection forward, left lug, the projection of the lower clamping piece and the lower clamping piece of the lower clamping piece in the anterior centre of folder Right lug between, be provided with a mutual cross-perforating, there is a circular hole of a upward and downward at the rear portion on the lower clamping piece left side, it is described under Rear portion on the right of folder has on the circular hole of a upward and downward, the circular hole and the right rear portion of lower clamping piece left side rear portion upward and downward It is lower to circular hole it is corresponding with two front fork stem close-fittings of the front fork 2, described front fork 2 is made up of two front fork stems, described front fork Bar is made up of metal circular tube, and the lower end of the front fork stem is in the gap that ∩ shapes are provided with flattening shape, front fork stem lower end flattening, The upper end of front fork stem described in two respectively with the circular hole of lower clamping piece left side rear portion upward and downward and the right rear portion upward and downward Circular hole close-fitting is socketed, and is reinforced with pin, the right side of the left lug of the lower clamping piece, the projection of the lower clamping piece and the lower clamping piece Cross-perforating between lug is used to install described lower Quick Release, and described lower Quick Release includes fast dismounting handle, circle hook bolt, arc-shaped pad Piece, two Quick Release springs, two nuts and c type fasteners, c type fasteners are made up of nylon, and there is opening for a c shapes front end of c type fasteners Mouthful, there is connecting hole the rear end of c type fasteners, and c type fasteners are bolted to the front of the lower clamping piece projection, and fast dismounting handle is One of one trigger piece, which is connected with the part of two disks arranged side by side, the disk arranged side by side of fast dismounting handle two, mutual eccentric orfice, Collar aperture rotation of the eccentric orfice by rivet with enclosing hook bolt on the disk of fast dismounting handle two is connected, and arc spacer is made of nylon Pad, the arc of arc spacer is corresponding with the arc concave on the left of the left lug of the lower clamping piece, and circle hook bolt penetrates arc-shaped pad In piece, the hole of the left lug of the lower clamping piece, in a Quick Release spring, in the hole of the lower clamping piece projection, another Quick Release spring neutralize In the hole of the right lug of lower clamping piece, two nuts can be tightened up into the lower clamping piece left side front portion to twisting positioning, switching fast dismounting handle Crack anterior hole of cracking on the right of hole and the lower clamping piece, then described lower clamping piece is tightened up and opened positioned at the lower clamping piece left end The left hand in seam circular hole 11 and positioned at the lower clamping piece right-hand member crack circular hole in the right handgrip 12, after interlocking Fast dismounting handle is caught in the c shape openings of c type fasteners.

Described left hand respectively penetrates 11 and described right handgrip 12 in the anterior circular hole that cracks in the lower clamping piece left side In the circular hole that cracks anterior on the right of the lower clamping piece, screwed hole of the left hand 11 bottom sides is screwed into respectively with two bolts In the screwed hole for neutralizing the bottom side of right handgrip 12, the left hand is fastened to the bolt in the screwed hole of 11 bottom sides As the anterior circular hole that cracks in the lower clamping piece left side to upper limit, the screwed hole of the bottom side of right handgrip 12 is fastened to In bolt, as the anterior circular hole that cracks on the right of the lower clamping piece to upper limit.

Described side arm 3 connect before including part, rotary part and after connect part, it is described before connect the blank that part is aluminium extruded type, Connect part before described in the V-shaped overlooked, it is described before connect the circular hole that two front ends and a rear end of part respectively have a band to crack, it is described before Even two bands of two front ends of part crack circular hole crack it is vertical be respectively provided with one laterally to perforation, it is described before connect the band of part front end and crack Circular hole be inconjunction with crack it is vertical laterally perforation is referred to as before amplexis hole, it is described before connect the band of part rear end and crack the cracking of circular hole It is vertical to be provided with one laterally to perforation, it is described before connect the band circular hole that cracks of part rear end and be inconjunction with to crack and vertical laterally perforation be referred to as For rear amplexis hole, it is described before connect part two before amplexis hole be fixedly connected on by the twist-on of bolt and nut in the middle part of front fork, it is described before Even the rear amplexis hole of part is fixedly connected with the front axle tube of rotary part by the twist-on of bolt and nut, and described rotary part includes Front axle tube and two bearings, the upper and lower side of front axle tube pore, which is respectively milled with, places the counterbore that spin axis is held, and two bearings are embedded in front axle respectively In the counterbore of pipe upper and lower side, and by the endoporus of two bearings, corresponding to connecting mutual pair in two sides above and below the groove profile of part front end after described Perforation, described rear even part is the slice processing part of aluminium extruded type, it is described after to connect the front end of part be in groove profile, it is described after connect part groove profile Up and down both sides be provided with it is mutual to perforation, it is described before connect the both sides up and down of part groove profile and strike out fillet, it is described after connect part rearward end Be in the rod that is stretched to the back lower place, it is described after connect the middle part and lower end of part rearward end and respectively have a transverse holes, it is described after connect part groove Type it is mutual to being punched through to lock bolt connection rotary part.

Described double front-axle beams 4 are made up of two rectangular tubes and connector, and the transverse direction of the front end of two rectangular tubes is provided with mutual To perforation, the medial surface of the anterior medial surface of two rectangular tubes and two rectangular tube rear ends is provided with riveted holes, and connector is by a gold medal The groove profile part that is stamped to form of category piece, the bottom of connector groove profile two sides has one mutual to perforation, connector groove profile both sides Riveted holes are arranged at the top in face, and the upper top of connector groove profile has connecting hole, and the riveted holes of connector groove profile two sides pass through rivet Riveted with the riveted holes of the medial surface of two rectangular tube rear ends, described double front-axle beams 4 also include front connecting piece, front connecting piece be by There are riveted holes, the upper top of front connecting piece groove profile in the groove profile stamping that one sheet metal is stamped to form, the two sides of front connecting piece groove profile There is connecting hole, the riveted holes of front connecting piece two sides are riveted by rivet and the riveted holes in two rectangular tube front inner faces, described Double 4 liang of rectangular tube front ends of front-axle beam laterally it is mutual to be punched through to lock bolt with it is described before connect transverse holes in the middle part of part and rotate and connect Connect, the mutual previous phase to being punched through connecting lock bolt with the rear groove profile of fork 5 part in the described pair of connector bottom of front-axle beam 4 Mutual rotates connection to perforation.

Described rear fork 5 connects part by groove profile and two dropout are constituted, and groove profile connects part and is stamped to form by a sheet metal Groove profile part, groove profile, which connects the front and rear of the bottom of part two sides, respectively one mutual to perforation, and the top that groove profile connects part two sides has Riveted holes, it is front and rear two mutual mutual to wearing square hole to also having between perforation that groove profile connects part two sides bottom, and groove profile connects part The riveted holes of two sides are riveted by rivet and two dropout, and dropout is the part that flat bar sheet metal is made, dropout There are riveted holes at front end and middle part, and the rear end of dropout has is also associated with rear connecting piece, rear connecting piece in the middle part of circular hole, two dropout The groove profile stamping being stamped to form by a sheet metal, there are a riveted holes two sides of rear connecting piece groove profile, rear connecting piece groove profile it is upper Connecting hole is arranged at top, and the riveted holes of rear connecting piece two sides are riveted by the riveted holes in the middle part of rivet and two dropout, and groove profile connects Also include lock pin and spring on part, the left end of lock pin is in the dead bolt shape of door lock, and the right part of lock pin is in square cotter shape, the side of lock pin It is pin-shaped it is upper have a pin hole at dead bolt shape, the square cotter shape of lock pin penetrates groove profile from left to right, and to connect part two sides bottom mutual To wearing in square hole and in spring, and pin positioning is filled in the pin hole of lock pin square cotter shape, lock pin under the action of the spring can The lower section of lower link 6 described in interlocking.

Described lower link 6 is the part being made up of metal round rod, and the front-end and back-end of the lower link 6 are all in the right Respectively there are a horizontal screwed hole, institute at right-angle bending, the two-end-point of the right-angle bending of the front-end and back-end of the lower link 6 to the right State the right-angle bending of the front end of lower link 6 to the right and penetrate and connect after described in the transverse holes of part lower end, and institute is fastened to a bolt State the front end of lower link 6 to position in the screwed hole of right-angle bending end points to the right, the right-angle bending of the rear end of the lower link 6 to the right Penetrate and connect that part is latter mutual in perforation in the rear groove profile of fork 5, and be fastened to a bolt rear end of the lower link 6 Positioned in the screwed hole of right-angle bending end points to the right.

Described front running board 71 is formed by plastic injection, and there are a slot-type openings front end of front running board 71, described after folding The slot-type openings of front running board 71 are corresponding with the rear even part of the side arm 3, and there is a slotted hole at the middle part of front running board 71, folds Afterwards, the slotted hole of the front running board 71 is corresponding with described trailing wheel 82, and there is number the bottom surface of the front and rear of front running board 71 There is downward stile at individual twist-on hole, the edge of the front running board 71, and there is the grid of vertical and horizontal the bottom surface of the front running board 71 The reinforcement of shape, the stile at the edge of front running board 71 and the reinforcement of the bottom surface vertical and horizontal of the front running board 71 integrally connect Pass through, the front running board 71 upward on antiskid particles are also distributed with, antiskid particles are upper prominent pinnacle round dot, the front running board Several twist-on holes of the bottom surface of 71 front and rears are connected by the front connecting piece and connector of tap bolt and described pair of front-axle beam 4 Connect.

Described bumper step 72 is formed by plastic injection, and the rearward end of bumper step 72 has a U-shaped opening, the bumper step 72 U-shaped opening is corresponding with described trailing wheel 82, and there are several twist-on holes the bottom surface of the front end of bumper step 72 and middle part, described There is downward stile at the edge of bumper step 72, and there are the reinforcement of the clathrate of vertical and horizontal, institute in the bottom surface of the bumper step 72 The reinforcement of the stile and the bottom surface vertical and horizontal of the bumper step 72 of stating the edge of bumper step 72 integrally links up, the bumper step 72 Upward on antiskid particles are also distributed with, several twist-on holes of the bottom surface of the front end of bumper step 72 and middle part pass through self tapping spiral shell Bolt connects part with the groove profile of the rear fork 5 and rear connecting piece is connected.

Described front-wheel 81 is 8 inches of wheel, and a bearing, the front-wheel 81 are respectively inlayed in the center of the two sides of front-wheel 81 It is socketed on by the bearing of two sides on described front axle, described trailing wheel 82, which is 8 inches, takes turns, in the two sides of trailing wheel 82 The heart respectively inlays a bearing, and the trailing wheel 82 to lock bolt with the rear end circular hole of dropout described in two 6 by being connected.

Claims (10)

1. a kind of stretching handle linkage type foldable scooter, including quick stretching handle, front fork, side arm, double front-axle beams, rear fork, lower company Bar, front running board, bumper step, front wheels and rear wheels, it is characterized in that：Quick stretching handle includes left hand handle, right handgrip, upper latch fitting, lower lock Part and handle, left hand being to be formed by the upper end of pipe as right-angle bending with right handgrip, left hand and right handgrip right-angle bending at Lower section be respectively provided with screwed hole, the side with right handgrip bottom is respectively provided with screwed hole by left hand, and upper latch fitting is by upper clamping piece and upper fast Tear composition open, respectively there is a circular hole that cracks of a upward and downward left and right ends of upper clamping piece, upper clamping piece left and right ends are cracked the court of cracking of circular hole Forwards, there is a left lug forward in the crack left side of cracking of circular hole of upper clamping piece left end, and upper clamping piece right-hand member cracks the cracking of circular hole There is a right lug forward on right side, has a projection forward in the middle part of upper clamping piece, upper clamping piece left lug, projection and right lug it Between have a mutual cross-perforating, upper Quick Release is installed in the left lug of upper clamping piece, projection and the mutual cross-perforating of right lug, Left hand being penetrated with right handgrip in the circular hole that cracks of upper clamping piece left and right ends upward and downward, and by left hand and right handgrip right-angle bending Screwed hole below place corresponds to the bottom side of upper clamping piece, under being screwed into respectively at left hand handle and right handgrip right-angle bending with two bolts Side screwed hole in, by left hand with right handgrip and upper clamping piece work rotate it is spacing, upper Quick Release can tighten up opening for upper clamping piece left end The circular hole that cracks of circular hole and right-hand member is stitched, the left hand handle and right handgrip in upper clamping piece are fixed；Lower latch fitting is by lower clamping piece and lower Quick Release Constitute, the front portion on the lower clamping piece left side respectively has the circular hole that cracks of a upward and downward with the front portion on the right, and crack circle for lower clamping piece left side front portion Hole cracks towards front, and the anterior circular hole that cracks cracks towards front on the right of lower clamping piece, and crack circular hole for lower clamping piece left side front portion Left side of cracking have a left lug forward, there is a right lug forward on the right side of cracking of the anterior circular hole that cracks on the right of lower clamping piece, There is a projection forward the anterior centre of lower clamping piece, between the left lug, projection and right lug of lower clamping piece, there is a mutual horizontal stroke To perforation, the rear portion on the lower clamping piece left side has the rear portion on the right of the circular hole of a upward and downward, lower clamping piece to have the circular hole of a upward and downward, lower folder The circular hole of part left side rear portion upward and downward and the circular hole of the right rear portion upward and downward are connected with front fork, and left hand handle and right handgrip penetrate lower folder In anterior and the anterior upward and downward in the right the circular hole that cracks in the part left side, left hand is screwed into respectively with two bolts the spiral shell with right handgrip bottom In pit, lower Quick Release is installed in the left lug of lower clamping piece, projection and the mutual cross-perforating of right lug, and lower Quick Release can be tightened up down The circular hole that cracks of crack circular hole and the right-hand member of folder left end, by the left hand in lower clamping piece being fixed with right handgrip, handle is connected to Top with right handgrip is located at the top of upper clamping piece by left hand；Side arm by preceding even part, rotary part and after connect part and constitute, it is preceding Even the preceding amplexis hole of part is fixedly connected in the middle part of front fork, and preceding even the front and rear of part respectively has amplexis hole, rotary part to connect part before being installed on Rear amplexis hole on, after connect part front end be in groove profile, after connect part groove profile both sides up and down have it is mutual to perforation, after connect part rear end Middle part and lower section respectively have a transverse holes, after connect part groove profile it is mutual to being punched through to lock bolt connection rotary part；Before double Beam is formed by connecting by the rear end and connector of two rectangular tubes, and the transverse direction of double front ends of front-axle beam two has mutual to perforation, connector It is a groove profile stamping, the two sides of connector groove profile have one mutual to perforation, and double front ends of front-axle beam two are laterally mutual to perforation By connecting to lock bolt and before transverse holes in the middle part of part and rotating and be connected, double preceding beam connections mutually to being punched through to locking bolt Previous mutual being rotated to perforation for connecting part with rear fork groove profile is connected；Afterwards fork by groove profile connect part and two dropout connection and It is a groove profile stamping to connect part into, groove profile, and groove profile, which connects the front and rear of the two sides of part, respectively one mutual to perforation, and lower link is by gold The part that category round bar is made, the front end of lower link connects the transverse holes rotation of part lower end with after and is connected, and rear end and the groove profile of lower link connect Latter mutual being rotated to perforation of part is connected；Front running board is connected to double front-axle beams, fork after bumper step connection, before front-wheel is installed on Axle, trailing wheel is installed on two rear ends of rear fork.

2. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：A left side for the left lug of upper clamping piece Side is in arc concave, and the arc of arc spacer is corresponding with the arc concave on the left of the left lug of the upper clamping piece, and the lower clamping piece left side is convex The left side of piece is in arc concave, and the arc of arc spacer is corresponding with the arc concave on the left of the left lug of the lower clamping piece.

3. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：Connect part before described in vertical view V-shaped, it is described before connect part two before amplexis hole be fixedly connected on by the twist-on of bolt and nut in the middle part of front fork, it is described before connect part Amplexis hole is fixedly connected with the front axle tube of rotary part by the twist-on of bolt and nut afterwards.

4. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：Described rotary part includes Front axle tube and two bearings, it is described after connect part front end be in groove profile, it is described after connect part groove profile both sides up and down be provided with it is mutual to wearing Hole, it is described after connect part groove profile it is mutual to being punched through to lock bolt connection rotary part.

5. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：It is to be in connect part rearward end after described The rod stretched to the back lower place, it is described after connect the middle part and lower end of part rearward end and respectively have a transverse holes.

6. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：The anterior medial surface of two rectangular tubes Riveted holes are provided with the medial surface of two rectangular tube rear ends, the riveted holes of connector groove profile two sides pass through rivet and two rectangular tubes The riveted holes riveting of the medial surface of rear end, described double front-axle beams also include front connecting piece, the riveted holes of front connecting piece two sides Riveted by rivet and the riveted holes in two rectangular tube front inner faces.

7. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：Groove profile connects part two sides bottom Front and rear two is mutual mutual to wearing square hole to also having between perforation, after groove profile connects the riveted holes of part two sides by rivet and two Forks piece is riveted, and dropout is to be also associated with rear connecting piece in the middle part of the part that flat bar sheet metal is made, two dropout.

8. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：Groove profile, which connects, also includes lock on part Pin and spring, the left end of lock pin are in the dead bolt shape of door lock, and the right part of lock pin is in close to dead bolt on square cotter shape, the square cotter shape of lock pin Have a pin hole at shape, the square cotter shape of lock pin penetrate from left to right groove profile connect part two sides bottom it is mutual to wearing in square hole and bullet In spring, and pin positioning is filled in the pin hole of lock pin square cotter shape, lock pin under the action of the spring can lower link described in interlocking Lower section.

9. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：The front end of the lower link is with after End respectively has one laterally all in right-angle bending to the right at the two-end-point of the right-angle bending of the front-end and back-end of the lower link to the right Screwed hole.

10. stretching handle linkage type foldable scooter according to claim 1, it is characterized in that：The former riding front edge of board has one Slot-type openings, after folding, the slot-type openings of the front running board are corresponding with the rear even part of the side arm, have in the middle part of the front running board One slotted hole, after folding, the slotted hole of the front running board is corresponding with described trailing wheel, and the bumper step rearward end has one U-shaped Opening, the U-shaped opening of the bumper step is corresponding with described trailing wheel.