CN111086590A

CN111086590A - Portable sliding plate type electric vehicle

Info

Publication number: CN111086590A
Application number: CN202010023239.6A
Authority: CN
Inventors: 庞明方
Original assignee: Taicang Chezhongbao Leisure Products Co Ltd
Current assignee: Taicang Chezhongbao Leisure Products Co Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-05-01
Anticipated expiration: 2040-01-09
Also published as: CN111086590B

Abstract

A portable sliding plate type electric vehicle comprises a two-stage telescopic rotating handle, a front fork, a front beam, a folder, a middle beam, a shock-absorbing folding piece, a rear fork piece, a front wheel, a rear wheel and an electric driving system, wherein the two-stage telescopic rotating handle is formed by connecting a left handle, a right handle, an upper locking piece, a left middle connecting rod, a right middle connecting rod, a middle locking piece and a lower locking piece; the electric driving system comprises a motor, a battery, a controller and a control switch, wherein the motor is arranged on the rear wheel.

Description

Portable sliding plate type electric vehicle

The technical field is as follows:

the invention relates to a folding electric scooter, in particular to a portable skateboard electric scooter which can be folded to be small enough and is convenient to carry.

Technical background:

there is foldable electric scooter in the existing market, but does not have the very little foldable electric scooter that can fold.

The invention content is as follows:

the invention aims to provide a portable sliding plate type electric vehicle which has high folding speed and can be folded to be small enough. The object of the invention is thus achieved; portable slide formula electric motor car, including the flexible handle, front fork, front beam, scray, well roof beam, folding piece, back fork spare of moving away to avoid possible earthquakes of two-stage type, front wheel, rear wheel and electric drive system, characterized by: the two-stage telescopic rotary handle comprises a left handle, a right handle, an upper locking piece, a left middle connecting rod, a right middle connecting rod, a middle locking piece and a lower locking piece, wherein the left handle and the right handle are both composed of a vertical pipe and a horizontal pipe, the vertical pipe is formed by connecting a vertical head and a vertical pipe, the vertical head is connected to the top end of the vertical pipe, the vertical head is provided with an omega-shaped connecting port, the vertical head is connected with the horizontal pipe through the omega-shaped connecting port, the right end of the horizontal pipe of the left handle and the left end of the horizontal pipe of the right handle are respectively sleeved with a locking ring, and the vertical pipe further comprises a limiting bolt; the upper lock piece comprises a handle base, two nylon lining rings, an upper lock connecting piece, two lock connecting rings and two positioning rings, wherein the left end and the right end of the handle base are respectively provided with an upward and downward slotted round hole, a slot of the slotted round hole at the left end of the handle base is opposite to a slot of the slotted round hole at the right end, a longitudinal mutual opposite penetrating hole is formed in the vertical direction of the slot of the slotted round hole at the left end of the handle base, a longitudinal mutual opposite penetrating hole is formed in the vertical direction of the slot of the slotted round hole at the right end of the handle base, the longitudinal mutual opposite penetrating hole on the slot of the slotted round hole at the left end of the handle base and the longitudinal mutual opposite penetrating hole on the slot of the slotted round hole at the right end of the handle base are respectively provided with a pair of bolt and nuts, a nylon is respectively embedded in the slotted round hole at the left end and the slotted round hole at the right end of the handle base, the lining ring locking piece comprises a U-shaped clamp, the U-shaped clamp is formed by connecting a J-shaped seat and a locking tongue, the J-shaped seat is connected with the middle part of the handle base through a bolt, an upper quick-release part is connected with the J-shaped seat and the locking tongue, the U-shaped clamp formed by the J-shaped seat and the locking tongue can be tightened by the upper quick-release part, a locking ring at the right end of the horizontal tube of the left handle and a locking ring at the left end of the horizontal tube of the right handle are locked by the U-shaped clamp after being unfolded, a vertical tube of the left handle and a vertical tube of the right handle are connected in nylon lining rings at the left end and the right end of the handle base, a pair of bolts and nuts in a longitudinal pair of through holes on a slit of the slit round hole at the left end of the handle base are screwed, the handle base is provided with a slotted round hole at the right end, and the slotted round hole at the left end and the slotted round hole at the right end are tightly clamped with a pair of bolt nuts in longitudinal pairs of through holes on the slotted round hole at the right end of the handle base; the left middle connecting rod and the right middle connecting rod are both formed by a round tube-shaped section bar with a slit on one side surface and a bottom plug, the middle locking piece is formed by a middle clamping piece and a middle quick release piece, the left end and the right end of the middle clamping piece are respectively provided with an up-down slit round hole, slits of the slit round holes at the left end and the right end of the middle clamping piece face towards the front, the slit left side of the slit round hole at the left end of the middle clamping piece is provided with a forward left convex piece, the slit right side of the slit round hole at the right end of the middle clamping piece is provided with a forward right convex piece, the middle clamping piece is provided with a forward convex piece in the middle part, a mutual transverse through hole is arranged among the left convex piece, the convex piece and the right convex piece of the middle clamping piece, the middle quick release piece is arranged in the mutual transverse through hole of the left convex piece and the right convex piece of the upper clamping piece, the upper ends of the left middle connecting rod and the right connecting rod penetrate into the up-down, the upper quick release can tighten the slotted round hole at the left end and the slotted round hole at the right end of the upper clamping piece, and the upper end of the left middle connecting rod and the upper end of the right middle connecting rod in the upper clamping piece are fixed with the left handle and the right handle; the lower locking piece consists of a lower clamping piece, a lower quick-release part and a front shaft tube, wherein the left front end and the right front end of the lower clamping piece are respectively provided with a vertical slotted round hole with a forward slot, the left side of the slotted round hole at the left front end of the lower clamping piece is provided with a left lug, the right side of the slotted round hole at the right front end of the lower clamping piece is provided with a right lug, the front middle part of the lower clamping piece is provided with a forward convex block, a mutual transverse through hole is arranged between the left lug, the convex block and the right lug of the lower clamping piece, the middle part at the left side of the lower clamping piece is provided with a vertical round hole, the rear end at the left side of the lower clamping piece is provided with a vertical slotted round hole, the slotted round hole at the rear end at the left side of the lower clamping piece is fixedly connected with the front shaft tube, the left handle and the right handle penetrate through the vertical round holes at the left front end and the right front end of the lower clamping piece, and two bottom rings are, the lower quick release is arranged in the mutual transverse through holes of the left lug, the convex block and the right lug of the lower clamping piece, and can tighten the slotted round hole at the left end and the slotted round hole at the right end of the lower clamping piece to fix the lower ends of the left middle connecting rod and the right middle connecting rod in the lower clamping piece; the front beam consists of a groove-shaped piece and a front beam pipe, the groove-shaped piece is connected to the front end of the front beam pipe, opposite through holes in the groove-shaped piece, which are vertical to each other, are rotatably connected with a front shaft pipe of the lower clamping piece through opposite locking bolts, and the rear end of the front beam pipe is connected with a front folding piece of the folder; the folder is composed of a front folding piece, a rear folding piece and a locking hook piece, wherein the front folding piece is a groove-shaped punching piece with a backward opening, the lower ends of the left side surface and the right side surface of the front folding piece are provided with a pair of transverse through holes, the upper edge of the front folding piece is provided with a longitudinal threaded hole, the rear folding piece is a box-shaped punching piece, the left side edge, the right side edge and the upper edge of the rear folding piece are bent backwards and at right angles, the front upper end and the front lower end of the rear folding piece are respectively provided with a pair of mutually ear pieces, a pair of mutually upper through holes are formed in the pair of ear pieces at the front upper end of the rear folding piece, a pair of mutually lower through holes are formed in the pair of ear pieces at the front lower end of the rear folding piece, the rear folding piece is also provided with four riveting holes and mounting holes of a rear wheel fastener, the upper edge of the rear folding piece is bent backwards and at right angle and provided with a vertical threaded hole, the four riveting holes of the front end of a middle beam through four rivets, and the pair of The locking hook part is composed of a locking hook, a locking bolt, a limiting bolt and a locking hook spring, the locking bolt is screwed into a longitudinal threaded hole of the front folding part through the matching of a nut, a ring hole in the middle of the locking hook is rotationally connected with a pair of upper through holes which are transversely mutually arranged on the rear folding part through a pair of locking bolts, the limiting bolt penetrates into a vertical long hole in the rear part of the locking hook and the locking hook spring from top to bottom and then is screwed into a vertical threaded hole of the rear folding part, and the locking hook is locked with the front top of the locking bolt under the action of the locking hook spring; the middle beam is composed of a groove-shaped beam, an upper cover piece and rear wheel fasteners, a lithium battery pack and a controller can be placed in the groove-shaped beam, the groove-shaped beam is provided with the upper cover piece, the rear wheel fasteners are connected in rectangular holes and round holes in the middle of the front end part of the groove-shaped beam and the rear part of the rear folding piece, and the groove-shaped beam is connected to the front side surface of the folding connecting piece; the shock-absorbing folding piece consists of a folding connecting piece, a shock-absorbing block and an elastic connecting piece, wherein the top of the folding connecting piece is provided with a sheet part protruding backwards, the left, the middle and the right of the sheet part of the folding connecting piece are respectively provided with a vertical hole, the lower part of the folding connecting piece is provided with a transverse through hole, the left and the right vertical parts of the sheet part of the folding connecting piece pass through two eye bolts and screw cylinders of two pairs of locking bolts, the shock-absorbing block is connected below the sheet part of the folding connecting piece, the ring-shaped heads of the two eye bolts are exposed above the sheet part of the folding connecting piece, the two ring-shaped heads exposed above the sheet part of the folding connecting piece are connected with the ring-shaped head of the elastic connecting piece through the two pairs of locking bolts, the middle part of the elastic connecting piece is positioned in the shock-absorbing block, the elastic connecting piece consists of a; the rear fork piece is composed of two rear fork pieces, a shock-absorbing blocking piece, a folding pedal and a front wheel buckle, wherein a transverse hole at the front end part of each rear fork piece is rotationally connected with a transverse through hole at the lower part of the folding connecting piece through a locking bolt, the shock-absorbing blocking piece is connected to the front parts of the two rear fork pieces, the shock-absorbing blocking piece is abutted against the shock-absorbing block to generate a shock-absorbing effect, a vertical hole of the shock-absorbing blocking piece is locked with a screw steel ball of an elastic connecting piece, the folding pedal is connected to the outer side surface of the middle part of the two rear fork pieces, the front wheel buckle is riveted to the outer side of the middle part of the left rear fork piece of the two rear fork pieces, the rear fork pieces can be folded downwards and forwards, the rear wheel buckle arranged at the front end of the groove-shaped beam and the rear folding piece can buckle after the rear fork pieces are folded, the front wheel can be buckled in the front wheel; the front wheel is arranged at the lower end of the front fork, and the rear wheel is arranged at the rear ends of the two rear fork pieces; the electric driving system comprises a motor, a battery, a controller and a control switch, wherein the motor is arranged on the rear wheel.

The invention has the beneficial effects that: the invention adopts various technical means, so that the electric welding of the vehicle body is reduced; through the ingenious design, the portable sliding plate type electric vehicle achieves the effect that the volume is small enough after being folded; the novel two-stage telescopic rotating handle is adopted, so that the folding of the handle is simpler and more effective; the folding device adopts the structure that the front beam, the folder and the middle beam are positioned at the left positions, so that the folded rear wheels can be positioned on the right side surfaces of the front beam and the middle beam and are buckled and positioned by the rear wheels; the folding front wheel is positioned by the front wheel buckle connected with the rear fork piece after being folded, so that the front wheel, the front fork and the front beam are in a folded state; the invention adopts the mode that the shock-absorbing folding piece is matched with the shock-absorbing blocking piece, so that the rear fork piece can be quickly folded forwards and downwards with the rear wheel, and the rear fork piece has the shock-absorbing effect after being unfolded; moreover, the elastic connecting piece is matched with the screw hole steel ball through the eyelet bolt, so that the problem that the elastic connecting piece is difficult to penetrate into the vertical hole of the polyurethane block is solved; the groove-shaped beam is used as the main body of the center sill and also used as a battery box, so that the purpose of skillfully reducing the space is achieved, and the appearance of the invention is more attractive.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the two-stage telescopic handle of the present invention;

FIG. 3 is a schematic drawing of the two-stage telescopic handle of the present invention;

FIG. 4 is a structural and connection diagram of the left and right handles, the upper locking member, the middle locking member and the lower locking member of the two-stage telescopic rotating handle of the present invention;

FIG. 5 is a schematic view of the construction of the rear folding member of the folder of the present invention;

FIG. 6 is a schematic view showing the construction of the upper cover of the girder according to the present invention;

FIG. 7 is a schematic view of the rear wheel fastener of the beam of the present invention;

FIG. 8 is a schematic view of the construction of the folding link of the suspension folding member of the present invention;

FIG. 9 is a schematic view of the spring connecting member of the shock-absorbing folding member of the present invention;

FIG. 10 is a schematic view of the front wheel buckle of the rear fork of the present invention;

FIG. 11 is a schematic view of the folding process of the present invention;

FIG. 12 is a folded view of the present invention;

in the figure: 1-two-stage telescopic rotating handle, 2-front fork, 3-front beam, 4-folder, 5-middle beam, 6-shock-absorbing folding piece, 7-rear fork piece, 81-front wheel, 82-rear wheel, 9-electric driving system; wherein two-stage type is flexible changes handle 1 and still includes: 11-left handle, 12-right handle, 13-upper locking piece, 14-left middle connecting rod, 15-right middle connecting rod, 16-middle locking piece, 17-lower locking piece; upper lock assembly 13 further includes 131 a handle base, 132 an upper lock assembly; the front beam 3 further includes: 31-channel profile, 32-front beam tube; the folder 4 further includes: 41-front folding piece, 42-rear folding piece, 43-latch piece; the center sill 5 further includes: 51-channel beam, 52-upper cover, 53-rear wheel fastener; the suspension folding member 6 further includes: 61-folding connecting piece, 62-shock absorbing block, 63-elastic connecting piece; the rear fork 7 further comprises: 71-rear fork piece, 72-folding pedal, 73-front wheel buckle.

The specific implementation mode is as follows:

referring to fig. 1 and 4, the portable skateboard electric vehicle comprises a two-stage telescopic handle 1, a front fork 2, a front beam 3, a folder 4, a middle beam 5, a shock-absorbing folding member 6, a rear fork member 7, a front wheel 81, a rear wheel 82 and an electric driving system 9;

the two-stage telescopic rotating handle 1 comprises a left handle 11, a right handle 12, an upper locking piece 13, a left middle connecting rod 14, a right middle connecting rod 15, a middle locking piece 16 and a lower locking piece 17, wherein the left handle 11 and the right handle 12 are both formed by a handle vertical pipe and a handle horizontal pipe, the handle vertical pipe is formed by connecting a handle vertical head and a handle vertical pipe, the handle vertical head is an aluminum die-casting piece and is provided with an omega-shaped connecting port, the middle lower part of the handle vertical head is cylindrical with a concave inclined surface on the top surface, a through hole is arranged on the front side of a vertical direction of a slit position below the omega-shaped connecting port of the handle vertical head, a threaded hole is arranged on the rear side of the vertical direction of the slit position below the omega-shaped connecting port of the handle vertical head, the threaded hole below the omega-shaped connecting port of the handle vertical head is longitudinally corresponding to the through hole below the omega-shaped connecting port of the handle vertical head, the cylindrical outer diameter of the concave inclined surface of the handle vertical head is larger than, the cylinder with the downward vertical head is tightly sleeved in a hole at the top end of the vertical pipe in a matching manner, the cylinder is in a shape of a concave inclined plane of the vertical head after being sleeved with the vertical pipe, a convex ring which is larger than the vertical pipe is formed above the vertical pipe, the vertical pipe is a metal circular pipe, and the lower end of the vertical pipe is also provided with a threaded hole and is provided with a limit bolt.

The right part of the handle horizontal pipe of the left handle 11 is inserted into the connecting port with the omega shape of the handle vertical head of the left handle 11, a bolt is inserted into a through hole below the connecting port with the omega shape of the handle vertical head of the left handle 11, then the handle horizontal pipe is screwed into the threaded hole below the connecting port with the omega shape of the handle vertical head of the left handle 1 and screwed tightly, the connecting port with the omega shape of the handle vertical head of the left handle 11 is locked with the handle horizontal pipe of the left handle 11, the right end of the handle horizontal pipe of the left handle 11 is tightly sleeved with a locking ring, the left part of the handle horizontal pipe of the right handle 12 is inserted into the connecting port with the omega shape of the handle vertical head of the right handle 12, the bolt is inserted into the through hole below the connecting port with the omega shape of the handle vertical head of the right handle 12, then the threaded hole below the connecting port with the omega shape of the connecting port with the handle vertical head of the right handle 12 and screwed tightly, the connecting port with the omega shape of the handle, and a locking ring is tightly matched and sleeved at the left end of the transverse handle pipe of the right handle 12.

The upper locking member 13 comprises a handle base 131, two nylon bushings, an upper locking member 132, two locking rings and two positioning rings, wherein the handle base 131 is an aluminum die-casting or aluminum extrusion-type slicing workpiece, the left and right ends of the handle base 131 are respectively provided with an up-down slotted round hole, the slots of the left and right slotted round holes of the handle base 131 are opposite and corresponding, a longitudinal opposite through hole is formed in the vertical direction of the slot of the slotted round hole at the left end of the handle base 131, a longitudinal opposite through hole is formed in the vertical direction of the slot of the slotted round hole at the right end of the handle base 131, a longitudinal opposite through hole is formed in the slot of the slotted round hole at the left end of the handle base 131, a pair of bolt nuts are respectively arranged in the longitudinal opposite through holes of the slot of the slotted round hole at the right end of the handle base 131, a plurality of vertical holes are formed in the middle of the handle base 131, the handle comprises a handle base 131, a handle base 131 and a right handle, wherein a slotted round hole at the left end of the handle base 131 and a slotted round hole at the right end of the handle base 131 are respectively embedded with a nylon lining ring, the nylon lining rings are in a round tube shape, the outer diameters of the nylon lining rings correspond to the slotted round hole at the left end of the handle base 131 and the slotted round hole at the right end of the handle base 131, the inner diameters of the nylon lining rings correspond to the outer diameters of a riser of the left handle 1 and a riser of the right handle 12, and the heights of the nylon lining rings correspond to the thickness of.

The upper locking connecting piece 132 consists of a U-shaped clamping piece and an upper quick-dismantling piece, the U-shaped clamping piece consists of a J-shaped seat and a locking bolt, the J-shaped seat is an aluminum extruded cutting workpiece, the J-shaped seat is inverted J-shaped, a transverse arc concave part is arranged at the front upper part of the J-shaped seat, a vertical through hole is arranged in the middle of the arc concave part of the J-shaped seat and is vertical to the arc concave part of the J-shaped seat, the lower part of the J-shaped seat is in a block shape, a rotating shaft hole is transversely arranged at the front part of the block shape of the J-shaped seat, a plurality of threaded holes from bottom to top are arranged at the bottom of the block shape of the J-shaped seat, a plurality of vertical holes at the middle part of the handle base 31 are fixedly connected with a plurality of threaded holes from bottom to top of the block shape of the J-shaped seat through bolts, the locking bolt is composed of a bolt-shaped aluminum piece and two bolt connecting pieces, the bolt-shaped, the middle part of spring bolt shape aluminium alloy is located protruding obtuse rear and has a vertical perforation, the front end and the rear end of spring bolt shape aluminium alloy respectively have a horizontal riveting hole, the spring bolt connection piece is the metal punching sheet, respectively have a round hole in the front of middle and back of spring bolt connection piece, put two spring bolt connection pieces in the both sides of spring bolt shape aluminium alloy, fix the riveting with the horizontal riveting hole of the preceding round hole and middle round hole and spring bolt shape aluminium alloy front end and rear end of two spring bolt connection pieces with two rivets, thereby make the lock tongue, do the rotation with the rear round hole of two spring bolt connection pieces and the horizontal pivot hole of J shape seat with a pair of lock bolt and be connected, thereby make U-shaped folder.

The quick-release upper part comprises a quick-release handle, a ring head bolt, an arc-shaped lining, a locking piece spring and a locknut, wherein the quick-release handle is rotationally connected with the ring head bolt through riveting, the ring head bolt penetrates into the arc-shaped lining, a vertical through hole of a J-shaped seat, the locking piece spring and a vertical through hole of a lock tongue-shaped aluminum piece from top to bottom, then the locknut is screwed with the lower end of the ring head bolt, the quick-release handle is turned upwards towards a rear lower plate, an obtuse angle formed by upward protrusion of a locking tongue of a U-shaped clamp can be enabled to be upwards locked with the front side of a lower convex angle of a locking ring at the right end of a transverse pipe of a left handle 11, and the front side of a lower convex angle of a locking ring at the left end of the transverse pipe of a right handle 12, otherwise, the quick-release handle is turned upwards towards the front upper plate, the locking tongue of the U-release handle can be enabled to be upwards protruded downwards to be unlocked with the lower convex angle of the, and the locking ring is locked and connected with the lower convex angle of the locking ring at the left end of the handle transverse pipe of the right handle 12, the locking ring is an aluminum extruded section, the locking ring is a round part, a round hole which is matched and corresponds to the handle transverse pipe is arranged in the locking ring, the upper part and the lower part of the front part of the locking ring are respectively provided with an upper convex angle and a lower convex angle, the upper convex angle and the lower convex angle of the locking ring are obtuse angles, the upper convex angle and the lower convex angle of the locking ring and the periphery of the middle rear part of the locking ring form a U shape which is laid forwards, and the front side surface of the lower convex angle of the locking ring corresponds to the rear side surface of the upward convex obtuse angle of the locking tongue after locking.

The handle stem of the left handle 11 and the handle stem of the right handle 12 are respectively inserted into a nylon lining ring at the left end of the handle base 131 and a nylon lining ring at the right end of the handle base 131, the positioning ring is composed of a slotted ring and a pair of bolt nuts, the slotted ring is formed by cutting and processing an aluminum extruded section, a slot is formed in the side surface of the slotted ring, two protruding parts are arranged at two sides of the slot of the slotted ring, a pair of mutually opposite through holes vertical to the slot are formed in the two protruding parts of the slotted ring, a pair of bolt nuts are arranged in the mutually opposite through holes of the slotted ring, the two positioning rings are respectively sleeved on the handle stem of the left handle 11 and the handle stem of the right handle 12, the bolt nuts of the positioning rings are screwed, the two positioning rings are fixed on the handle stem of the left handle 11 and the handle stem of the right handle 12, and the two positioning rings are respectively located at the left end of the circular hole of the handle base 131 and the slotted hole of the handle base 131 and the positioning ring of the right handle base 131 And under the slotted round hole at the right end, a bolt nut in a longitudinal mutual perforation at the left end of the handle base 131 and a bolt nut in a longitudinal mutual perforation at the right end are screwed, and the slotted round holes at the two ends of the handle base 131 are clamped to the handle vertical pipe of the left handle 11 and the handle vertical pipe of the right handle 12, which can rotate but are not loosened properly.

The left middle connecting rod 14 is composed of a slotted round tubular section bar and a bottom plug, the bottom plug is a cylindrical component, the circumference of the cylindrical lower end of the bottom plug is provided with a convex ring, the cylindrical shape of the bottom plug is plugged into a pipe hole at the lower end of the slotted round tubular section bar, so as to form the left middle connecting rod 14, the upper end of the left middle connecting rod 14 penetrates into a slotted round hole which is arranged at the left end of the middle clamping piece in the vertical direction, the upper end of the left middle connecting rod 14 is connected with the slotted round hole which is arranged at the left end of the middle clamping piece in the vertical direction by a pin, the left middle connecting rod 14 simultaneously slides and penetrates into the slotted round hole which is arranged at the left end of the lower clamping piece in the vertical direction, the convex ring of the bottom plug of the left middle connecting rod 14 is used as a limit for the upward sliding of the left middle connecting rod 14, the right middle connecting rod 15 is composed of another slotted round tubular section bar and another bottom plug, the circumference of the cylindrical lower end of the other bottom plug is provided with a convex ring, the cylindrical shape of the other bottom plug is plugged into a pipe hole at the lower end of the other slotted round pipe-shaped section bar, so that the right middle connecting rod 15 is formed, the upper end of the right middle connecting rod 15 penetrates into a slotted round hole in the upward and downward direction of the right end of the middle clamping piece, the upper end of the right middle connecting rod 15 is connected with the slotted round hole in the upward and downward direction of the right end of the middle clamping piece by a pin, the right middle connecting rod 15 simultaneously penetrates into the slotted round hole in the upward and downward direction of the right end of the lower clamping piece in a sliding manner, and the convex ring of the other bottom plug of the right middle connecting rod 15 is used as.

The middle locking piece 16 is composed of a middle clamping piece and a middle quick release, the middle clamping piece is an aluminum extruded cut-off piece, and can also be an aluminum forging piece or an aluminum die casting piece, the left end and the right end of the middle clamping piece are respectively provided with an up-down slotted round hole, the slots of the slotted round holes at the left end and the right end of the middle clamping piece face towards the front, the left slotted side of the slotted round hole at the left end of the middle clamping piece is provided with a forward left convex piece, the left side of the left convex piece of the middle clamping piece is arc concave, the right slotted side of the slotted round hole at the right end of the middle clamping piece is provided with a forward right convex piece, the middle clamping piece is provided with a forward convex block in the middle part, a mutual transverse through hole is arranged among the left convex piece of the middle clamping piece, the convex piece of the middle clamping piece and the right convex piece of the middle clamping piece, and the transverse through hole is used for, the middle quick release comprises a quick release handle, a ring head bolt, an arc gasket, two quick release springs, two nuts and a c-shaped clamping piece, wherein the c-shaped clamping piece is made of nylon, the front end of the c-shaped clamping piece is provided with a c-shaped opening, the rear end of the c-shaped clamping piece is provided with a connecting hole, the c-shaped clamping piece is connected in front of a convex block of the middle clamping piece through a bolt, the quick release handle is a part that one end of a trigger is integrally connected with two parallel wafers, the two parallel wafers of the quick release handle are provided with mutual eccentric holes, the eccentric holes on the two wafers of the quick release handle are rotatably connected with the ring hole of the ring head bolt through rivets, the arc gasket is made of nylon, the arc of the arc gasket corresponds to the arc concave shape on the left side of the upper clamping piece, the ring head bolt penetrates through the arc gasket, the hole of the left convex block of the middle clamping piece, the quick release spring, the hole of the convex block in the clamping piece, the two nuts are oppositely screwed and positioned, the vertical pipe of the left handle 11 is inserted into the slotted pipe hole at the upper end of the left middle connecting rod 14, and the bolt head of the limit bolt at the lower end of the left handle 11 and the stand pipe is corresponding to the slit of the left middle connecting rod 14, the handle stem of the right handle 12 is inserted into the slotted hole at the upper end of the right middle connecting rod 15, the bolt head of the limit bolt at the lower end of the vertical pipe at the right handle 12 corresponds to the slot of the right middle connecting rod 15, the quick release handle is pulled to tighten the slot holes at the left and right ends of the middle clamping piece, the slot pipe at the upper end of the left middle connecting rod 14 at the slot hole at the left end of the middle clamping piece is tightened with the vertical pipe at the left handle 11, and tightening the slotted pipe at the upper end of the right middle connecting rod 15 positioned in the slotted hole at the right end of the upper clamping piece and the handle pipe of the right handle 12, and clamping the locked quick-release handle into the c-shaped opening of the c-shaped clamping piece.

The lower locking piece 17 is composed of a lower clamping piece, a lower quick release and a front axle tube, the lower clamping piece is an aluminum extrusion type cutting and processing piece, and can also be an aluminum forging piece or an aluminum die casting piece, the left front end and the right front end of the lower clamping piece are respectively provided with a vertical slotted round hole, the slot of the slotted round hole at the left front end of the lower clamping piece faces to the front, the slot of the slotted round hole at the right front end of the lower clamping piece faces to the front, the left side of the slotted round hole at the left front end of the lower clamping piece is provided with a forward left convex piece, the left side of the left convex piece of the lower clamping piece is arc concave, the right side of the slotted round hole at the right front end of the lower clamping piece is provided with a forward right convex piece, a forward convex block is arranged in the middle of the front part of the lower clamping piece, a mutual transverse through hole is arranged among the left convex piece of the lower clamping piece, the convex piece of, the rear end of the right side of the lower clamping piece is provided with a vertical round hole, the vertical round hole at the rear end of the right side of the lower clamping piece is transversely corresponding to the vertical round hole at the middle part of the left side of the lower clamping piece, the rear end of the left side of the lower clamping piece is provided with a vertical slotted round hole, the slot of the slotted round hole at the rear end of the left side of the lower clamping piece faces towards the rear, two sides of the slot of the lower clamping piece facing towards the rear are respectively provided with a backward connecting edge, the upper part and the lower part of the two backward connecting edges of the lower clamping piece are respectively provided with a pair of mutual transverse through holes, the upper part and the lower part of the two pairs of mutual transverse through holes of the lower clamping piece are respectively provided with a pair of bolt nuts, the front shaft tube penetrates into the slotted round hole at the rear end of the left side of the lower clamping piece and is screwed with the bolt nuts in the lower pair of, the axle tube is formed by turning a counter bore on the upper end and the lower end of a tube hole of a round tube respectively, a bearing is embedded in each counter bore on the upper end and the lower end of the axle tube, and a round hole in the middle of the left side of the lower clamping piece and a round hole in the rear end of the right side of the lower clamping piece are in close fit correspondence with the two front fork rods of the front fork 2.

The lower quick release comprises a quick release handle, a ring head bolt, an arc-shaped gasket, two quick release springs, two nuts and a C-shaped part, wherein the C-shaped part is made of nylon, the front end part of the C-shaped part is provided with a C-shaped port with a forward opening, the C-shaped port can be elastically buckled with the quick release handle, the upper part and the lower part of the rear end part of the C-shaped part are respectively provided with a connecting hole, the upper connecting hole and the lower connecting hole of the C-shaped part are connected with the front end surface of the lug of the lower clamping part through two bolts, two parallel wafers of the quick release handle are provided with mutual eccentric holes, the eccentric holes on the two wafers of the quick release handle are rotatably connected with the ring hole of the ring head bolt through rivets, the arc-shaped gasket is a gasket made of nylon, and the arc shape of the arc-shaped gasket corresponds to the concave shape of the left side of the left lug of the lower, the ring head bolt penetrates through the arc-shaped gasket, a hole of a left lug of the lower clamping piece, a quick-release spring, a hole of a convex block of the lower clamping piece, another quick-release spring and a hole of a right lug of the lower clamping piece, two nuts are oppositely screwed and positioned, a quick-release handle is pulled, a slotted hole in the front part of the left side of the lower clamping piece and a slotted hole in the front part of the right side of the lower clamping piece can be tightened, then the lower clamping piece is tightened to be positioned in the slotted hole in the left end of the lower clamping piece, the lower end of the left middle connecting rod 14 and the lower end of the right middle connecting rod 15 are positioned in the slotted hole in the right end of the lower clamping piece, and the quick-release handle after locking is clamped into a C-shaped opening.

The front fork 2 is composed of a left front fork rod and a right front fork rod, the left front fork rod and the right front fork rod are made of aluminum round tubes, the lower end of the left front fork rod and the lower end of the right front fork rod are both provided with flattening parts, ∩ -shaped openings are formed in the flattening parts of the lower end of the left front fork rod and the lower end of the right front fork rod, the upper end of the left front fork rod is tightly matched and sleeved with a vertical round hole in the middle of a lower clamping piece and reinforced by a pin, and the upper end of the right front fork rod is tightly matched and sleeved with a vertical round hole in the rear end of the right side and reinforced by a pin.

The front beam 3 is composed of a groove-shaped part 31 and a front beam pipe 32, the groove-shaped part 31 is made of aluminum section, the upper part and the lower part of the groove-shaped part 31 are respectively provided with a sheet part protruding forwards, two sheet parts protruding forwards of the groove-shaped part 31 are provided with a pair of vertical mutual through holes, the groove-shaped part 31 is welded at the front end of the front beam pipe 32 backwards, the pair of vertical mutual through holes of the groove-shaped part 31 are connected with two bearings in the front shaft pipe through a pair of locking bolts, the front beam pipe 32 is formed by cutting a rectangular pipe, the rear end of the front beam pipe 32 is welded with a front folding part 41, the front upper end of the front beam pipe 32 is in an acute angle smaller than 60 degrees, and the middle beam 5 is connected with the ground to form an acute angle which is high in front and low in rear and close to 45 degrees.

The folder 4 comprises a front folding member 41, a rear folding member 42 and a latch hook member 43, the front folding member 41 is a slot-shaped punched member with a backward opening, the lower ends of the left and right sides of the front folding member 41 are provided with a pair of transverse through holes, the middle of the upper edge of the front folding member 41 is provided with a longitudinal threaded hole, the rear folding member 42 is a box-shaped punched member, the left and right sides of the rear folding member 42 are bent backward at right angles, the upper edge of the rear folding member 42 is bent backward at right angles, the front upper end and the front lower end of the left and right sides of the rear folding member 42 are respectively provided with a pair of ear pieces, the pair of ear pieces at the front upper end of the rear folding member 42 are provided with a pair of transverse upper through holes, the pair of ear pieces at the front lower end of the rear folding member 42 are provided with a pair of transverse lower through holes, the left side of the rear folding member 42 is bent backward at right angles, and the rear part of the, The rear folding piece 42 is provided with a vertical threaded hole along the rear edge of the rear folding piece 42 bent at right angle backwards, four riveting holes of the rear folding piece 42 are riveted with the front end of the middle beam through four rivets, a pair of transverse lower through holes of the rear folding piece 42 are rotatably connected with a pair of transverse through holes of the left and right lower sides of the front folding leaf 41 through bolts The lock hook piece 43 is composed of a lock hook, a locking bolt, a limiting bolt and a lock hook spring, the lock hook is an aluminum extruded slice workpiece, the lower part of the front part of the lock hook is in a hook shape, a front convex trigger is arranged above the front part of the lock hook, the middle rear part of the lock hook is provided with a downward convex ring and a ring hole in the convex ring, the rear end part of the lock hook is provided with a vertical long round hole, the locking bolt is a flat base bolt, the locking bolt is screwed into a longitudinal threaded hole of the front folding piece 41 through the matching of a nut and is positioned, the ring hole of the lock hook passes through the locking bolt, is rotatably connected with a pair of mutual transverse through holes at the top ends of the left and right side surfaces of the rear folding piece 42, a limit bolt penetrates into a vertical long hole at the rear part of the lock hook and a lock hook spring from top to bottom, and then screwed into a threaded hole at the rear edge of the rear folding piece 42 bent backwards at a right angle, and the lock hook is locked with the front top of the locking bolt under the action of the lock hook spring.

The middle beam 5 is composed of a groove-shaped beam 51, an upper cover piece 52 and a rear wheel fastener 52, the groove-shaped beam 51 is made of groove-shaped aluminum profiles, shallow dovetail grooves are formed on two inner side edges of a groove opening of the groove-shaped beam 51, three holes which correspond to and are the same as the upper part, the middle part and the lower part of the rear part bent backwards at a right angle from the left of the rear folding piece 42 are formed in the left side surface of the front end of the groove-shaped beam 51, three holes which correspond to and are the same as the upper part, the middle part and the lower part of the rear part bent backwards at a right angle from the right of the rear folding piece 42 are formed in the right side surface of the front end of the groove-shaped beam 51, the rear end of the groove-shaped beam 51 is welded with the left side of the front side surface of the shock-absorbing folding piece 6, the upper hole and the lower hole of the left side surface of the groove-shaped beam 51 and the upper hole and the lower hole of the right side surface are, the upper cover piece 52 is a flaky plastic part, the rear end of the upper cover piece 52 is provided with a duck tongue-shaped rear protrusion, the duck tongue-shaped rear protrusion of the upper cover piece 52 can penetrate into the upper left hole of the shock-absorbing folding piece 6, two edges of the middle part of the upper cover piece 52 are provided with convex ribs corresponding to shallow dovetail grooves on two inner side edges of the groove beam 51 and can be clamped into the shallow dovetail grooves on the two inner side edges of the groove beam 51, the front end of the upper cover piece 52 is provided with a forward elastic part, the elastic part of the upper cover piece 52 is provided with a U-shaped front end and a lock tongue part, the U-shaped front end of the upper cover piece 52 is provided with the elastic part of the upper cover piece 52 in a U-shaped manner, and the lock tongue part of the upper cover piece 52 can be locked with the rear edge of the rear folding piece 42 which is bent backwards at right angle.

The rear wheel fastener 53 is composed of a lock head, a connecting shaft, a locking spring and a pulling knob, the lock head is made of nylon, the right end of the lock head is in a bolt shape of a door lock, the left end of the lock head is provided with a threaded hole corresponding to the right end of the connecting shaft, the connecting shaft is formed by respectively opening the left end and the right end of a round steel bar and is screwed with the threaded hole of the lock head, the locking spring is sleeved on the connecting shaft, the connecting shaft with the locking spring and the lock head penetrates into a rectangular hole on the right side of the front end of the groove-shaped beam 51 and a rectangular hole bent at a right angle backwards on the right side of the rear folding piece 42, the left end of the connecting shaft penetrates into a middle round hole bent at a right angle backwards on the left side of the rear folding piece 42 and a middle round hole on the left side of the front end of the groove-shaped beam 51 and extends out of the left side of the groove-shaped beam 51, the pulling knob is screwed with the left end of the connecting shaft and is made of plastic, the pulling knob, the, the lock head of the rear wheel fastener 33 can lock the rear wheel hub after the rear fork is folded under the action of the locking spring, and the lock head is retracted towards the groove-shaped beam 51 by pulling towards the left through the pulling knob so as to be unlocked with the hub of the rear wheel.

The shock-absorbing folding piece 6 is composed of a folding connecting piece 61, a shock-absorbing block 62 and an elastic connecting piece 63, the folding connecting piece 61 is an aluminum profile cutting workpiece, the top of the folding connecting piece 61 is provided with a sheet part protruding backwards, the left, the middle and the right of the sheet part of the folding connecting piece 61 are respectively provided with a vertical hole, the left, the middle and the right vertical holes of the folding connecting piece 61 are transversely and correspondingly arranged, the left upper part of the front side surface of the folding connecting piece 61 is provided with a longitudinal flat hole, the flat hole of the folding connecting piece 61 corresponds to the duck-tongue-shaped back protrusion of the upper cover piece 52, the bottom of the folding connecting piece 61 is provided with a ring shape, the ring shape of the folding connecting piece 61 is provided with a transverse through hole, the left and the right vertical holes of the folding connecting piece 61 are respectively matched with a screw cylinder of a swing bolt, a thickening gasket and a locking bolt, the shock-absorbing block 62 is connected below the backward protruding part of the folding connecting piece 61, and the ring head and the thickened pad of the swing bolt are positioned above the backward protruding sheet part of the folding link 61, the shock absorbing block 62 is made of polyurethane, the shock absorbing block 62 is rectangular block-shaped, the left side and the right side of the shock absorbing block 62 are respectively provided with a vertical connecting hole, a vertical through hole is arranged between the two vertical connecting holes of the shock absorbing block 62, the connecting hole of the shock absorbing block 62 is a through hole with a counter bore penetrating the upper part, the two connecting holes of the shock absorbing block are connected with the sheet part of the folding link 61 through the matching of a screw cylinder of a locking bolt and the swing bolt, the elastic connecting piece 63 is composed of a swing bolt and a screw steel ball, the swing bolt of the elastic connecting piece 63 penetrates into the middle vertical hole on the sheet part of the folding link 61 and the through hole of the shock absorbing block 62 from top to bottom, and then the screw steel ball is screwed on the thread at the lower end of the swing bolt of the elastic connecting piece 63, the loop head of the long-rod swing bolt of the elastic connecting piece 63 is connected with the loop heads of the two swing bolts above the sheet part of the folding connecting piece 61 through a pair of locking bolts and two lining rings.

The rear fork piece 7 is composed of two rear fork pieces 71, a shock-absorbing baffle piece, a folding pedal 72 and a front wheel buckle 73, wherein the two rear fork pieces 71 are formed by punching aluminum sheets, the front end parts of the two rear fork pieces 71 are provided with shaft holes, the shaft holes of the two rear fork pieces 71 correspond to transverse through holes of the folding connecting piece 61, the rear ends of the two rear fork pieces 71 are provided with U-shaped openings with backward openings, the front end parts and the rear parts of the two rear fork pieces 71 are respectively provided with two connecting holes, the two rear fork pieces 71 are in bilateral symmetry, the upper edge of the front part of the left rear fork piece in the two rear fork pieces 72 is provided with two riveting holes, the shock-absorbing baffle piece is formed by punching an aluminum sheet, the left side and the right side of the shock-absorbing baffle piece are respectively provided with a downward right-angle folded edge, the middle part of the shock-absorbing baffle piece is provided with a spring hole, the size of the spring hole corresponds to a screw hole of the spring piece 63, two right-angle hems of the shock-absorbing blocking piece 73 are riveted with the front part of the rear fork piece 71 through rivets, the rear fork piece 71 is rotatably connected with the transverse through hole of the folding connecting piece 61 through a locking bolt, when the rear fork piece 7 is unfolded, a front-back dislocation is slightly formed between the spring hole of the shock-absorbing blocking piece and the screw steel ball of the spring connecting piece 63, and because the polyurethane of the shock-absorbing block 62 not only has vertical elasticity, but also has elasticity around, therefore, under the condition of manual pressing, the screw steel ball of the spring connecting piece 63 slides into the spring hole of the shock-absorbing blocking piece, the spring connecting piece 63 is in spring connection with the spring hole of the shock-absorbing blocking piece, and the shock-absorbing blocking piece leans against the shock-absorbing block 62 to generate the shock-absorbing effect.

The folding pedal 72 is composed of four connecting seats, two foot plates and two long bolts, the connecting seats are right-angle bending punching pieces, a connecting hole is respectively arranged at the upper part and the lower part of one surface of each connecting seat, a rotating shaft hole is arranged on the right-angle bending surface of each connecting seat, the four connecting seats correspond to each other in pairs, two pairs of connecting seats are respectively connected with the outer side surfaces of the two rear fork pieces 71 through eight pairs of bolt nuts, the foot plate structure is formed by plastic injection molding, a longitudinal through hole is arranged at the inner edge of each foot plate, the inner edge of each foot plate is positioned below the longitudinal through hole and provided with a downward protruding vertical edge, downward protruding reinforcing ribs are transversely and longitudinally connected with the bottom surface of each foot plate, upward protruding anti-skidding particles are distributed on the upper surface of each foot plate, the longitudinal through holes of the two foot plates are respectively connected with the rotating shaft holes of the two pairs of connecting seats on the outer side surfaces of the two rear fork, the downward protruding vertical edges of the two foot boards abut against the lower edge of the rear fork piece 71 to form a supporting surface of the two foot boards.

The front wheel buckle 73 is composed of a front wheel elastic part and a nylon spring bolt part, the front wheel elastic part is formed by bending the upper end of a spring steel sheet right-angled, the end surface of the front wheel elastic part which is bent at right angle is provided with a connecting hole, the lower end of the front wheel elastic part is provided with two holes, the upper end of the front wheel elastic part is connected with the nylon spring bolt part in a sleeved mode, the right end of the nylon spring bolt part is provided with a door lock bolt tongue oblique angle, the left end of the nylon spring bolt part is provided with a flat hole, the flat hole at the left end of the nylon spring bolt part is connected with the end surface of the elastic part which is bent at right angle in a sleeved mode, the nylon spring bolt part is provided with a vertical screwing hole, the vertical screwing hole of the nylon spring bolt part is positioned with the connecting hole at the end surface of the front wheel elastic part which is bent at right angle, the two holes at the lower end of the elastic part are riveted with the two riveting holes of a left rear fork piece through two rivets, the rear fork piece 7 and the middle beam 5 are, after the front beam 3 and the middle beam 5 are folded, the front wheel buckle 73 riveted on the left rear fork piece can buckle the front wheel 81.

The front wheel 81 is an 8-inch wheel, two ends of the wheel shaft of the front wheel 81 are arranged in ∩ -shaped openings of the two front fork rods through the matching of nuts, the rear wheel 72 is a 10-inch wheel, and two ends of the wheel shaft of the rear wheel 72 are fixedly connected in U-shaped openings of the two rear fork elements 72 through the matching of nuts.

The electric drive system 9 includes: wheel hub motor, battery, controller and control switch, the motor be brushless wheel hub motor, the motor with the integrative configuration of wheel hub of rear wheel 82 combines, the battery be the lithium cell group of establishing ties, the controller be brushless motor controller, the battery with the controller all place in channel beam 51, control switch include outage floodgate handle and power control lock, power control lock install in the side of metal rectangular pipe, outage floodgate handle install in left hand handle 11 on with right hand handle 12 on, power control lock and outage floodgate handle through connecting wire and connector with the controller be connected, the controller pass through connecting wire and connector with the battery with rear wheel 82 connect.

Claims

1. The utility model provides a portable slide formula electric motor car, includes that two-stage type is flexible changes handle, front fork, front beam, scray, well roof beam, folding piece, back fork spare of moving away to avoid possible earthquakes, front wheel, rear wheel and electric drive system, characterized by: the two-stage telescopic rotary handle comprises a left handle, a right handle, an upper locking piece, a left middle connecting rod, a right middle connecting rod, a middle locking piece and a lower locking piece, wherein the left handle and the right handle are both composed of a vertical pipe and a horizontal pipe, the vertical pipe is formed by connecting a vertical head and a vertical pipe, the vertical head is connected to the top end of the vertical pipe, the vertical head is provided with an omega-shaped connecting port, the vertical head is connected with the horizontal pipe through the omega-shaped connecting port, the right end of the horizontal pipe of the left handle and the left end of the horizontal pipe of the right handle are respectively sleeved with a locking ring, and the vertical pipe further comprises a limiting bolt; the upper lock piece comprises a handle base, two nylon lining rings, an upper lock connecting piece, two lock connecting rings and two positioning rings, wherein the left end and the right end of the handle base are respectively provided with an upward and downward slotted round hole, a slot of the slotted round hole at the left end of the handle base is opposite to a slot of the slotted round hole at the right end, a longitudinal mutual opposite penetrating hole is formed in the vertical direction of the slot of the slotted round hole at the left end of the handle base, a longitudinal mutual opposite penetrating hole is formed in the vertical direction of the slot of the slotted round hole at the right end of the handle base, the longitudinal mutual opposite penetrating hole on the slot of the slotted round hole at the left end of the handle base and the longitudinal mutual opposite penetrating hole on the slot of the slotted round hole at the right end of the handle base are respectively provided with a pair of bolt and nuts, a nylon is respectively embedded in the slotted round hole at the left end and the slotted round hole at the right end of the handle base, the lining ring locking piece comprises a U-shaped clamp, the U-shaped clamp is formed by connecting a J-shaped seat and a locking tongue, the J-shaped seat is connected with the middle part of the handle base through a bolt, an upper quick-release part is connected with the J-shaped seat and the locking tongue, the U-shaped clamp formed by the J-shaped seat and the locking tongue can be tightened by the upper quick-release part, a locking ring at the right end of the horizontal tube of the left handle and a locking ring at the left end of the horizontal tube of the right handle are locked by the U-shaped clamp after being unfolded, a vertical tube of the left handle and a vertical tube of the right handle are connected in nylon lining rings at the left end and the right end of the handle base, a pair of bolts and nuts in a longitudinal pair of through holes on a slit of the slit round hole at the left end of the handle base are screwed, the handle base is provided with a slotted round hole at the right end, and the slotted round hole at the left end and the slotted round hole at the right end are tightly clamped with a pair of bolt nuts in longitudinal pairs of through holes on the slotted round hole at the right end of the handle base; the left middle connecting rod and the right middle connecting rod are both formed by a round tube-shaped section bar with a slit on one side surface and a bottom plug, the middle locking piece is formed by a middle clamping piece and a middle quick release piece, the left end and the right end of the middle clamping piece are respectively provided with an up-down slit round hole, slits of the slit round holes at the left end and the right end of the middle clamping piece face towards the front, the slit left side of the slit round hole at the left end of the middle clamping piece is provided with a forward left convex piece, the slit right side of the slit round hole at the right end of the middle clamping piece is provided with a forward right convex piece, the middle clamping piece is provided with a forward convex piece in the middle part, a mutual transverse through hole is arranged among the left convex piece, the convex piece and the right convex piece of the middle clamping piece, the middle quick release piece is arranged in the mutual transverse through hole of the left convex piece and the right convex piece of the upper clamping piece, the upper ends of the left middle connecting rod and the right connecting rod penetrate into the up-down, the upper quick release can tighten the slotted round hole at the left end and the slotted round hole at the right end of the upper clamping piece, and the upper end of the left middle connecting rod and the upper end of the right middle connecting rod in the upper clamping piece are fixed with the left handle and the right handle; the lower locking piece consists of a lower clamping piece, a lower quick-release part and a front shaft tube, wherein the left front end and the right front end of the lower clamping piece are respectively provided with a vertical slotted round hole with a forward slot, the left side of the slotted round hole at the left front end of the lower clamping piece is provided with a left lug, the right side of the slotted round hole at the right front end of the lower clamping piece is provided with a right lug, the front middle part of the lower clamping piece is provided with a forward convex block, a mutual transverse through hole is arranged between the left lug, the convex block and the right lug of the lower clamping piece, the middle part at the left side of the lower clamping piece is provided with a vertical round hole, the rear end at the left side of the lower clamping piece is provided with a vertical slotted round hole, the slotted round hole at the rear end at the left side of the lower clamping piece is fixedly connected with the front shaft tube, the left handle and the right handle penetrate through the vertical round holes at the left front end and the right front end of the lower clamping piece, and two bottom rings are, the lower quick release is arranged in the mutual transverse through holes of the left lug, the convex block and the right lug of the lower clamping piece, and can tighten the slotted round hole at the left end and the slotted round hole at the right end of the lower clamping piece to fix the lower ends of the left middle connecting rod and the right middle connecting rod in the lower clamping piece; the front beam consists of a groove-shaped piece and a front beam pipe, the groove-shaped piece is connected to the front end of the front beam pipe, opposite through holes in the groove-shaped piece, which are vertical to each other, are rotatably connected with a front shaft pipe of the lower clamping piece through opposite locking bolts, and the rear end of the front beam pipe is connected with a front folding piece of the folder; the folder is composed of a front folding piece, a rear folding piece and a locking hook piece, wherein the front folding piece is a groove-shaped punching piece with a backward opening, the lower ends of the left side surface and the right side surface of the front folding piece are provided with a pair of transverse through holes, the upper edge of the front folding piece is provided with a longitudinal threaded hole, the rear folding piece is a box-shaped punching piece, the left side edge, the right side edge and the upper edge of the rear folding piece are bent backwards and at right angles, the front upper end and the front lower end of the rear folding piece are respectively provided with a pair of mutually ear pieces, a pair of mutually upper through holes are formed in the pair of ear pieces at the front upper end of the rear folding piece, a pair of mutually lower through holes are formed in the pair of ear pieces at the front lower end of the rear folding piece, the rear folding piece is also provided with four riveting holes and mounting holes of a rear wheel fastener, the upper edge of the rear folding piece is bent backwards and at right angle and provided with a vertical threaded hole, the four riveting holes of the front end of a middle beam through four rivets, and the pair of The locking hook part is composed of a locking hook, a locking bolt, a limiting bolt and a locking hook spring, the locking bolt is screwed into a longitudinal threaded hole of the front folding part through the matching of a nut, a ring hole in the middle of the locking hook is rotationally connected with a pair of upper through holes which are transversely mutually arranged on the rear folding part through a pair of locking bolts, the limiting bolt penetrates into a vertical long hole in the rear part of the locking hook and the locking hook spring from top to bottom and then is screwed into a vertical threaded hole of the rear folding part, and the locking hook is locked with the front top of the locking bolt under the action of the locking hook spring; the middle beam is composed of a groove-shaped beam, an upper cover piece and rear wheel fasteners, a lithium battery pack and a controller can be placed in the groove-shaped beam, the groove-shaped beam is provided with the upper cover piece, the rear wheel fasteners are connected in rectangular holes and round holes in the middle of the front end part of the groove-shaped beam and the rear part of the rear folding piece, and the groove-shaped beam is connected to the front side surface of the folding connecting piece; the shock-absorbing folding piece consists of a folding connecting piece, a shock-absorbing block and an elastic connecting piece, wherein the top of the folding connecting piece is provided with a sheet part protruding backwards, the left, the middle and the right of the sheet part of the folding connecting piece are respectively provided with a vertical hole, the lower part of the folding connecting piece is provided with a transverse through hole, the left and the right vertical parts of the sheet part of the folding connecting piece pass through two eye bolts and screw cylinders of two pairs of locking bolts, the shock-absorbing block is connected below the sheet part of the folding connecting piece, the ring-shaped heads of the two eye bolts are exposed above the sheet part of the folding connecting piece, the two ring-shaped heads exposed above the sheet part of the folding connecting piece are connected with the ring-shaped head of the elastic connecting piece through the two pairs of locking bolts, the middle part of the elastic connecting piece is positioned in the shock-absorbing block, the elastic connecting piece consists of a; the rear fork piece is composed of two rear fork pieces, a shock-absorbing blocking piece, a folding pedal and a front wheel buckle, wherein a transverse hole at the front end part of each rear fork piece is rotationally connected with a transverse through hole at the lower part of the folding connecting piece through a locking bolt, the shock-absorbing blocking piece is connected to the front parts of the two rear fork pieces, the shock-absorbing blocking piece is abutted against the shock-absorbing block to generate a shock-absorbing effect, a vertical hole of the shock-absorbing blocking piece is locked with a screw steel ball of an elastic connecting piece, the folding pedal is connected to the outer side surface of the middle part of the two rear fork pieces, the front wheel buckle is riveted to the outer side of the middle part of the left rear fork piece of the two rear fork pieces, the rear fork pieces can be folded downwards and forwards, the rear wheel buckle arranged at the front end of the groove-shaped beam and the rear folding piece can buckle after the rear fork pieces are folded, the front wheel can be buckled in the front wheel; the front wheel is arranged at the lower end of the front fork, and the rear wheel is arranged at the rear ends of the two rear fork pieces; the electric driving system comprises a motor, a battery, a controller and a control switch, wherein the motor is arranged on the rear wheel.

2. The portable skateboard electric vehicle of claim 1, wherein: the middle lower part of the stand head is cylindrical with a concave inclined surface on the top surface, a through hole is arranged on the vertical front side of a slit position below an omega-shaped connector of the stand head, a threaded hole is arranged on the vertical rear side of the slit position below the omega-shaped connector of the stand head, the threaded hole below the omega-shaped connector of the stand head is longitudinally corresponding to the through hole below the omega-shaped connector of the stand head, the cylindrical outer diameter of the concave inclined surface of the stand head is larger than the outer diameter of the stand pipe, a cylinder is integrally connected below the cylindrical concave inclined surface of the stand head, the downward cylinder of the stand head is tightly sleeved in the hole at the top end of the stand pipe, the cylindrical concave inclined surface of the stand head is sleeved with the stand pipe, a convex ring which is larger than the stand pipe is formed above the stand pipe, and the lower end of the stand pipe is also provided with a threaded hole and matched.

3. The portable skateboard electric vehicle of claim 1, wherein: the J-shaped seat is inverted J-shaped, a transverse arc concave part is arranged above the front of the J-shaped seat, a vertical through hole is arranged in the middle of the arc concave part of the J-shaped seat and is vertical to the arc concave part of the J-shaped seat, the lower part of the J-shaped seat is blocky, a shaft hole is transversely arranged at the front part of the blocky J-shaped seat, a plurality of vertical holes in the middle of the handle base are fixedly connected with a plurality of screw holes in the bottom of the blocky J-shaped seat from bottom to top through bolts, the locking tongue is composed of a spring bolt-shaped aluminum piece and two spring bolt connecting pieces, an upward convex obtuse angle is arranged in the middle of the spring bolt-shaped aluminum piece, a vertical through hole is arranged behind the convex obtuse angle in the middle of the spring bolt-shaped aluminum piece, a transverse riveting hole is respectively arranged at the front end and the rear end of the spring bolt-shaped aluminum piece, a round hole is respectively arranged in the front, two spring bolt connecting pieces are placed on two sides of the spring bolt-shaped aluminum piece, and two spring bolt connecting pieces are riveted by two The holes are fixedly riveted to form locking bolts, and the rear round holes of the two bolt connecting sheets are rotatably connected with the transverse rotating shaft hole of the J-shaped seat by a pair of locking bolts to form the U-shaped clamp.

4. The portable skateboard electric vehicle of claim 1, wherein: the lock connection ring is a round part, a round hole corresponding to the handle transverse pipe in a tight fit mode is formed in the lock connection ring, an upper convex angle and a lower convex angle are arranged on the upper portion and the lower portion of the front portion of the lock connection ring respectively, the upper convex angle and the lower convex angle of the lock connection ring are obtuse angles, the upper convex angle and the lower convex angle of the lock connection ring and the periphery of the middle rear portion of the lock connection ring form a U shape which is placed forwards, and the front side face of the lower convex angle of the lock connection ring corresponds to the rear side face of the upward convex obtuse angle of the lock connection tongue after.

5. The portable skateboard electric vehicle of claim 1, wherein: the handle is characterized in that a vertical pipe of the left handle penetrates into a slotted pipe hole in the upper end of the left middle connecting rod, a bolt head of a limiting bolt in the lower end of the handle vertical pipe of the left handle corresponds to a slot of the left middle connecting rod, a handle vertical pipe of the right handle penetrates into a slotted pipe hole in the upper end of the right middle connecting rod, a bolt head of a limiting bolt in the lower end of the handle vertical pipe of the right handle corresponds to a slot of the right middle connecting rod, a quick-release handle is turned to tighten slotted holes in the left and right ends of the middle clamping piece, the slotted pipe in the upper end of the left middle connecting rod in the slotted hole in the left end of the middle clamping piece is tightened with the handle vertical pipe of the left handle, and the slotted pipe in the upper end of the right middle connecting rod in the slotted hole in the right end of the upper clamping.

6. The portable skateboard electric vehicle of claim 1, wherein: the front upper end of the front beam tube is an acute angle less than 60 degrees and is connected with the middle beam to form an acute angle which is high in front and low in back and close to 45 degrees with the ground, the left side of the back folding piece is bent backwards to form a rear right angle, the upper part, the middle part and the lower part of the rear part of the back folding piece are respectively provided with a round hole, the left side of the back folding piece is bent backwards to form a right angle, the upper round hole and the lower round hole of the rear part of the back folding piece are riveting holes, the right side of the back folding piece is bent backwards to form a right angle, the middle part and the middle part of the rear part of the back folding piece are provided with a transverse rectangular hole, the middle round hole of the rear part of the back folding piece is bent backwards to form a right angle, the middle round hole of the rear part of the back folding piece is a mounting hole of the rear wheel fastener, the lower part of the front part of the lock hook is in a hook shape, the middle rear part of the lock hook is provided with a downward convex ring and a ring hole in the convex ring, the rear end part of the lock hook is provided with a vertical long round hole, and the locking bolt is a flat base bolt.

7. The portable skateboard electric vehicle of claim 1, wherein: shallow dovetail grooves are formed in the two inner side edges of a groove-shaped beam notch, three holes which correspond to and are the same as the upper hole, the middle hole and the lower hole at the rear part of the rear folding piece bent backward at a right angle are formed in the left side surface of the front end of the groove-shaped beam, three holes which correspond to and are the same as the upper hole, the middle hole and the lower hole at the rear part of the rear folding piece bent backward at a right angle are formed in the right side surface of the front end of the rear folding piece, the rear end of the groove-shaped beam is welded with the left side position of the front side surface of the shock-absorbing folding piece, the upper cover piece is a sheet-shaped plastic component, a duck tongue-shaped rear protrusion is arranged at the rear end of the upper cover piece, the duck tongue-shaped rear protrusion of the upper cover piece can penetrate into the left upper hole of the shock-absorbing folding piece, protruding ribs which correspond to the shallow dovetail grooves at the two inner side edges of the groove-shaped beam are arranged along, the front end of the upper cover piece is provided with a forward spring connection part, the spring connection part of the upper cover piece is in a U shape, the front end of the U shape is provided with a lock tongue part, the spring connection part of the upper cover piece is provided with forward elasticity due to the U shape of the upper cover piece, and the lock tongue part of the upper cover piece can be locked with the rear edge of the rear folding piece bent backwards at a right angle.

8. The portable skateboard electric vehicle of claim 1, wherein: the rear wheel fastener consists of a lock head, a connecting shaft, a locking spring and a pull knob, the lock head is made of nylon, the right end of the lock head is in a bolt shape of a door lock, the left end of the lock head is provided with a threaded hole corresponding to the right end of the connecting shaft, the connecting shaft is formed by respectively opening the left end and the right end of a round steel bar and is provided with threads, the right end of the connecting shaft is screwed with the threaded hole of the lock head, the locking spring is sleeved on the connecting shaft, the connecting shaft is connected with the locking spring and the lock head to penetrate into a rectangular hole on the right side of the front end of the groove beam and a rectangular hole bent backwards at right angle on the right side of the rear folding piece, the left end of the connecting shaft penetrates into a middle round hole bent backwards at right angle on the left side of the rear folding piece and a middle round hole on the left side of the front end of the groove beam and extends out of the left side of the groove beam leftwards, the pull knob is connected with the left end of the connecting shaft, the pull knob is, the lock head of the rear wheel fastener can lock the rear wheel hub after the rear fork is folded under the action of the locking spring, and the lock head is retracted towards the groove-shaped beam by pulling the pull knob to the left so as to be unlocked with the hub of the rear wheel.

9. The portable skateboard electric vehicle of claim 1, wherein: the three vertical hole in the left side of folding even piece is horizontal corresponding arrangement, there is a fore-and-aft flat hole folding even piece's the upper left side of leading flank, folding even piece's flat hole with it is corresponding to go up the tongue back process of cover piece duck, folding even bottom has the circle shape, there is a horizontal through-hole in folding even piece's the circle shape, the piece of moving away to avoid possible earthquakes make by polyurethane, the piece of moving away to avoid possible earthquakes be the rectangle cubic, the piece of moving away to avoid possible earthquakes respectively has a vertical connecting hole on both sides about, there is a vertical through-hole between the two vertical connecting holes of the piece of moving away to avoid possible earthquakes, the connecting hole of the piece of moving away to avoid possible earthquakes is.

10. The portable skateboard electric vehicle of claim 1, wherein: the left side and the right side of the shock-absorbing separation blade are respectively provided with a downward right-angle hem, the middle of the shock-absorbing separation blade is provided with a spring-out hole, the size of the spring-out hole of the shock-absorbing separation blade corresponds to the screw steel ball of the spring-out piece, the two right-angle hems of the shock-absorbing separation blade are riveted with the front parts of the two back fork pieces through rivets, the two back fork pieces are rotatably connected with the transverse through hole of the folding connecting piece through butt-locking bolts, when the back fork pieces are unfolded, the spring-out hole of the shock-absorbing separation blade and the screw steel ball of the spring-out piece are slightly staggered front and back, and under the condition of manual pressing, the screw steel ball of the spring-out piece slides into the spring-out hole of the shock-absorbing separation blade, so that.