CN111086588B

CN111086588B - Portable folding electric booster vehicle

Info

Publication number: CN111086588B
Application number: CN202010023219.9A
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: 2021-04-27
Anticipated expiration: 2040-01-09
Also published as: CN111086588A

Abstract

A portable folding electric booster bicycle comprises a folding handlebar with a telescopic section, a front fork, a front piece, a middle beam, a five-way pipe connecting piece, a five-way pipe, a shock-proof connecting piece, a rear fork piece, a saddle, a front wheel, a rear wheel, a manual driving mechanism and an electric driving system, wherein the folding handlebar with the telescopic section is formed by connecting a left handle, a right handle, a latch piece, a locking piece, a folding base piece, a left middle connecting rod, a right middle connecting rod and a lower latch piece, the middle part of the middle beam is connected with the five-way pipe connecting piece, the rear end of the middle beam is connected with the shock-proof connecting piece, the five-way pipe is embedded into the five-way pipe connecting piece, the shock-proof connecting piece is rotatably connected with the rear fork piece, a connecting rod of the saddle is rotatably connected with the seat pipe and the front piece of the saddle, the front wheel is arranged on the front fork, the rear wheel is arranged on two rear fork pieces, the driving mechanism comprises a middle shaft, two cranks, the electric driving system comprises a motor, a battery, a controller, a control switch and a power-assisted sensor, wherein the motor is arranged on the rear wheel.

Description

Portable folding electric booster vehicle

The technical field is as follows:

the invention relates to a folding portable electric moped, in particular to a portable folding electric moped which can be folded to be small enough and has higher folding speed.

Technical background:

there is folding electric bicycle of several on the market at present, has folding fast folding electric bicycle, nevertheless folding electric bicycle's of folding back volume still is great, because reasons such as structure and structure, can't realize reaching the degree of small enough after folding.

The invention content is as follows:

the invention aims to provide a portable folding type electric moped which has high folding speed and can be folded to be small enough. The object of the invention is thus achieved; portable foldable electric bicycle, including folding handlebar, front fork, front part, well roof beam, five-way pipe even piece, five-way pipe, the formula of moving away to avoid possible earthquakes even piece, back fork piece, saddle, front wheel, rear wheel, manpower actuating mechanism and the electric drive system who takes flexible section, characterized by: the folding handlebar with the telescopic section comprises a left handle, a right handle, a latch hook part, a locking part, a folding base part, a left middle connecting rod, a right middle connecting rod and a lower latch part, wherein the left handle and the right handle are both composed of a vertical pipe and a horizontal pipe, the vertical pipe is divided into an upper part, a middle part and a lower part, the upper part of the vertical pipe is a vertical head, the vertical head is provided with an omega-shaped connecting port and is connected with the horizontal pipe through the omega-shaped connecting port, the middle part of the vertical pipe is a metal round pipe, the lower part of the vertical pipe is a thick-wall metal round pipe, a nylon pipe sleeve is sleeved on the thick-wall metal round pipe, the upper end of the thick-wall metal round pipe at the lower part of the vertical pipe is tightly sleeved in a lower end pipe hole at the middle part of the vertical pipe, the lower end of the vertical pipe is provided with a pair of through holes, the pair of the lower end of the vertical pipe of the left handle is, the left end of the handle horizontal pipe of the right handle is provided with a locking hole, the left side of the locking hole of the handle horizontal pipe of the right handle is provided with a locking piece, the locking piece can hold the right end of the handle horizontal pipe of the left handle tightly, the left front end of the folding base piece is provided with a vertical left groove, two sides of the lower end of the left groove of the folding base piece are provided with a pair of mutual through holes, the right front end of the folding base piece is provided with a vertical right groove, two sides of the lower end of the right groove of the folding base piece are provided with a pair of mutual through holes, the left rear end of the folding base piece is provided with a vertical left round through hole, the right rear end of the folding base piece is provided with a vertical right round through hole, the left rear end round through hole of the folding base piece is sleeved with a left middle connecting rod, the right rear end round through hole of the folding base piece; 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 slot of the left front slotted round hole of the lower clamping piece is provided with a left lug, the right side of the slot of the right front slotted round hole 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 of the left side of the lower clamping piece is provided with a vertical round hole, the rear end of the left side of the lower clamping piece is provided with a vertical slotted round hole, the slotted round hole at the rear end of 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 slotted round holes at the left front end and the right front end of the lower clamping piece, 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 end of the front piece is connected with two bearings in a front axle tube, the middle beam is composed of a beam tube, an inner chock block, a rear chock cover, a groove-shaped piece and a rear wheel fastener, the beam tube is made of a rectangular tube thicker than the common bicycle beam tube, the inner chock block is plugged in the front end of the beam tube, a lithium battery pack and a controller can be placed in a tube hole of the beam tube, the rear end of the tube hole of the beam tube is covered with the rear chock cover, the front end of the inner chock block is connected with the groove-shaped piece, the rear wheel fastener is connected in the front end of the beam tube and the inner chock block, the groove-shaped piece is rotatably connected with the front piece, the middle part of the beam tube is sleeved with a five-way tube connecting piece, the five-way tube is embedded in the five-way tube connecting piece, the shock-proof connecting piece is composed of a connecting piece, a shock-proof block, an elastic connecting piece and a towing wheel, the left upper part of the connecting piece is provided with a groove-shaped part with a front opening, the vertical direction of the longitudinal slit at the lower left of the connecting piece is provided with two pairs of mutual transverse holes, the front end of the right part of the connecting piece is an upward vertical edge, the upward vertical edge of the connecting piece is provided with three longitudinal holes at the left, the middle and the right, the lower part of the right part of the connecting piece is provided with a connecting surface vertical to the upward vertical edge of the connecting piece, the rear lower part of the right part of the connecting piece is provided with a transverse through hole, the groove-shaped part of the connecting piece is rotatably connected with the saddle, the longitudinal rectangular through hole of the connecting piece is sleeved at the rear end of the beam tube, the transverse through hole at the rear lower part of the connecting piece is rotatably connected with the back fork piece through a rear rotating shaft, the left and the right longitudinal holes at the upward vertical edge of the connecting piece are connected with the shock absorption block through two movable joint bolts and screw cylinders of two pairs of locking bolts, the ring-shaped heads of the two movable joint bolts exposed in front of the upward vertical edge of, the elastic connecting piece consists of a long rod eyelet bolt and a screw steel ball, the screw steel ball is screwed at the rear end of the long rod eyelet bolt, and the towing wheel is connected with a transverse through hole at the rear lower part of the groove-shaped part of the connecting piece; the rear fork piece is composed of two rear fork pieces, a shock-absorbing blocking piece and a rear rotating shaft, the shock-absorbing blocking piece is connected to the front upper parts of the two rear fork pieces, the shock-absorbing blocking piece is abutted to the shock-absorbing block to generate a shock-absorbing effect, the rear fork piece can be folded downwards and forwards by taking the rear rotating shaft as an axial direction, and a rear wheel fastener positioned in the front part of the middle beam can buckle a rear wheel after the rear fork piece is folded; the connecting rod of the saddle is rotationally connected with a seat tube and a front piece of the saddle, the front wheel is arranged on the front fork, the rear wheel is arranged on the two rear fork pieces, the saddle is folded forwards, and the saddle is connected with the front piece, the folding handlebar with the telescopic section, the front fork and the front wheel and is folded towards the lower part of the middle beam; the manual driving mechanism comprises a middle shaft, two cranks, a chain wheel, two pedals, a front-stage small chain wheel, a rear-stage chain wheel, a shaft sleeve, a flywheel, a front-stage chain and a rear-stage chain, the middle shaft is rotatably connected in a five-way pipe, the two cranks are arranged at the two ends of the middle shaft, the chain wheel is fixedly connected on the crank on the right side of the two cranks, the front-stage small chain wheel and the rear-stage chain wheel are connected to a rear rotating shaft through the shaft sleeve, the flywheel is connected to a rear wheel, the front-stage chain is wound on the chain wheel and the small; the electric driving system comprises a motor, a battery, a controller, a control switch and a power-assisted sensor, wherein the motor is arranged on the rear wheel.

The invention has the beneficial effects that: the invention adopts a plurality of process technical means, so that the bicycle body is free from electric welding, and represents a new trend of the bicycle manufacturing process; through the ingenious design, the portable folding type electric moped achieves the effects of high folding speed and small volume after being folded; the invention adopts the form of the folding handlebar with the telescopic section, so that the folding of the handlebar is simplest and most effective; the front piece, the middle beam and the seat tube are positioned at the left side, so that the folded rear wheel can be positioned on the right side surfaces of the front piece, the middle beam and the seat tube and positioned by the rear wheel fastener; the seat tube, the connecting rod and the front piece are in linkage folding, so that the seat tube and the front piece are in linkage folding with the front wheel of the front fork, after the seat tube and the front piece are folded, the seat folding positioning lock connected with the seat tube is locked with the backward folded edge of the middle beam groove-shaped piece, a better positioning effect can be generated, and the seat tube, the front piece, the seat tube, the front piece and the seat tube, including the front fork and the front wheel, are in a state of being fixed after being folded; the invention adopts the mode that the shock-absorbing connecting piece is matched with the shock-absorbing baffle, 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 beam pipe is also used as a battery box, so that the purpose of smartly 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 an expanded view of the foldable handlebar with telescoping sections of the present invention;

FIG. 3 is a schematic drawing of the folding handlebar with the telescoping section of the present invention;

FIG. 4 is a view showing the structure and connection of the left and right handles, the latch member and the latch member of the foldable handlebar with the telescopic section according to the present invention;

FIG. 5 is a schematic view of the rear wheel fastener of the beam of the present invention;

FIG. 6 is a schematic structural view of the five-way pipe connection of the present invention;

FIG. 7 is a schematic view of the construction of the connecting member of the shock absorbing connecting member of the present invention;

FIG. 8 is a schematic view of the spring connecting member of the shock absorbing connector of the present invention;

FIG. 9 is a schematic structural view of the dropout of the present invention;

FIG. 10 is a schematic view of the folding process of the present invention;

FIG. 11 is a folded view of the present invention;

in the figure: 1-folding handlebar with telescopic section, 21-front fork, 22-front piece, 3-middle beam, 41-five-way pipe connecting piece, 42-five-way pipe, 5-shock-proof connecting piece, 6-rear fork piece, 7-saddle, 81-front wheel, 82-rear wheel, 91-manpower driving mechanism, 92-electric driving system; wherein the folding handlebar 1 with the telescopic section further comprises: 11-left handle, 12-right handle, 13-latch hook, 14-latch piece, 15-folding base piece, 16-left middle connecting rod, 17-right middle connecting rod, 18-lower latch piece; the center sill 3 further includes: 31-beam pipe, 32-channel member, 33-rear wheel fastener; the shock absorbing link 5 further includes: 51-connecting piece, 52-spring connecting piece, 53-dragging wheel; the rear fork 6 further comprises: 61-rear fork piece, 62-shock-absorbing baffle piece, 63-rear rotating shaft; the seat 7 further includes: 71-seat tube, 72-locking piece, 73-connecting rod, 74-saddle, 75-folding positioning lock.

The specific implementation mode is as follows:

referring to fig. 1, 4 and 9, the portable foldable electric bicycle comprises a foldable handlebar 1 with a telescopic section, a front fork 21, a front piece 22, a middle beam 3, a five-way pipe connector 41, a five-way pipe 42, a shock-absorbing connector 5, a rear fork 6, a saddle 7, a front wheel 81, a rear wheel 82, a manual driving mechanism 91 and an electric driving system;

the folding handlebar 1 with the telescopic section comprises a left handle 11, a right handle 12, a locking hook part 13, a locking part 14, a folding base part 15, a left middle connecting rod 16, a right middle connecting rod 17 and a lower locking part 18, wherein the left handle 11 and the right handle 12 are both formed by a vertical pipe and a horizontal pipe, the vertical pipe is divided into an upper part, a middle part and a lower part, the middle part of the vertical pipe is an aluminum round pipe, the upper part of the vertical pipe is a stand head which is formed by connecting the stand head with the vertical pipe, the stand head is an aluminum die casting part, the stand head is provided with an omega-shaped connecting port, the middle lower part of the stand head is a cylinder with a concave inclined surface on the top surface, a through hole is arranged on the front side of the vertical direction of a slit below the omega-shaped lower part of the stand head, a threaded hole is arranged on the rear side of the vertical direction of the slit below the omega-shaped connecting port of the stand head, the threaded hole below the omega-shaped connecting port of the stand head is longitudinally, the cylindrical outer diameter of the concave inclined plane of the vertical head is the same as the outer diameter of the vertical pipe, a cylinder is integrally connected below the cylindrical concave inclined plane of the vertical head, the downward cylinder of the vertical head is tightly sleeved in a pipe hole at the top end of a middle circular pipe of the vertical pipe in a matching mode, a nylon pipe sleeve is sleeved on a thick-wall metal circular pipe at the lower portion of the vertical pipe, the upper end of the thick-wall metal circular pipe at the lower portion of the vertical pipe is tightly sleeved in the pipe hole at the lower end of the middle circular pipe of the vertical pipe in a matching mode, and the nylon pipe sleeve of the vertical pipe and the lower end of the thick-wall metal circular pipe are provided.

The handlebar cross tube of the left handlebar 11 is made of a circular tube, a hole is formed above the right part of the handlebar cross tube of the left handlebar 11, the right part of the handlebar cross tube of the left handlebar 11 penetrates into the omega-shaped connecting port of the handlebar upright of the left handlebar 11, the upper hole of the right part of the handlebar cross tube of the left handlebar 11 is positioned at the right side of the omega-shaped connecting port of the handlebar upright of the left handlebar 11, a bolt penetrates into a through hole below the omega-shaped connecting port of the handlebar upright of the left handlebar 11, the left handlebar 11 is screwed into a threaded hole below the omega-shaped connecting port of the handlebar upright of the left handlebar 11 and is screwed tightly, the omega-shaped connecting port of the handlebar upright of the left handlebar 11 is locked with the handlebar cross tube of the left handlebar 11, and a locking hook piece 13 is installed in a tube hole at the right end of the handlebar cross tube of the left handlebar 11 and an opening above the right part of the handlebar cross tube of the left handlebar 11.

Latch hook spare 13 constitute by latch hook, torsional spring and button, the latch hook is stamped by a sheetmetal, fifty percent discount in the middle of the sheetmetal of latch hook, the sheetmetal of latch hook is the F shape that the reversal was laid down after the punching press was accomplished, and the right-hand member of latch hook is ascending hook-shaped, and the middle part of latch hook is ascending form of rod, and the sheetmetal of latch hook is middle to pressing from both sides tightly with one end of torsional spring in the middle of the sheetmetal, latch hook put into together with the torsional spring in the tube hole of left hand handle 1 to violently managing the right-hand member, another of torsional spring supports downwards the tube hole inner wall of left hand handle 11 to violently managing, the ascending form of rod in middle part of latch hook is worn out the trompil of left hand handle 11 to the right part top of violently managing, then upwards the upper end fixed connection button of rod in the middle part of latch hook pushes down, can move down the hook-shaped of the right-hand member of latch hook, can let the right-hand member of latch hook The lower ends of the side grooves are mutually connected in a perforation rotating way.

The handlebar cross pipe of the right handlebar 12 is made of a circular pipe, a locking hole is formed above the left end of the handlebar cross pipe of the right handlebar 12, the left part of the handlebar cross pipe of the right handlebar 12 penetrates into an omega-shaped connecting port of a handlebar vertical head of the right handlebar 12, a locking hole above the left end of the handlebar cross pipe of the right handlebar 12 is positioned on the left side of the omega-shaped connecting port of the handlebar vertical head of the right handlebar 12, a bolt penetrates into a through hole below the omega-shaped connecting port of the handlebar vertical head of the right handlebar 12, the locking hole is screwed into a threaded hole below the omega-shaped connecting port of the handlebar vertical head of the right handlebar 12 and is tightened, the omega-shaped connecting port of the handlebar vertical head of the right handlebar 12 is locked with the handlebar cross pipe of the right handlebar 12 through the locking piece 14, and the locking piece is connected to the left end of the handlebar cross pipe of the right handlebar 12 through a pin.

The locking part 14 is composed of a seam opening ring and a locking quick release, the seam opening ring is formed by cutting and processing an aluminum extruded section, the periphery of the seam opening ring is in a horseshoe shape, an inner ring hole is circular, a seam is arranged on the front side of the seam opening ring, a vertical through hole is formed in the seam opening direction of the seam opening ring, the seam opening ring is positioned on the vertical upper side of the through hole and is in a transverse arc concave shape, the locking quick release is composed of a quick release handle, a ring head bolt, an arc-shaped gasket and a locknut, the quick release handle is rotationally connected with the ring head bolt through riveting, the ring head bolt penetrates into the arc-shaped gasket from top to bottom and the vertical through hole of the seam opening ring from top to bottom, then the locknut is screwed with the lower end of the ring head bolt, after the locking hook piece 13 in the transverse pipe of the left handle 11 is locked with the locking hole of the transverse pipe of the right handle 12, and simultaneously after the right end of the transverse pipe of the left handle, the quick detach handle of locking quick detach is changeed to the lower square plate in back, can let the circle of slotting of retaining member 14 hold tightly the right-hand member of violently managing of left hand handle 11, otherwise, the quick detach handle of locking quick detach is changeed to the upper square plate in front, can let the circle of slotting of retaining member 14 loosen and hold tightly the right-hand member of violently managing of left hand handle 11, the right hand handle 12 to the perforation of riser lower extreme through to the lockbolt with the mutual to perforation rotation of the right groove lower extreme of folding base member 15 is connected.

Folding base member 15 make by the crowded section bar of aluminium, folding base member 15 left front end has a vertical left side groove, folding base member 15 right front end has a vertical right side groove, folding base member 15 left side groove is the U type groove of opening left place ahead, open at the both sides of folding base member 15 left side groove lower extreme has mutual perforation, folding base member 15 right side groove is the U type groove of opening right place ahead, open the both sides of folding base member 15 right side groove lower extreme has mutual perforation, folding base member 15 left rear end has a vertical left round through-hole, folding base member 15 right rear end has a vertical right round through-hole, cup joint in folding base member 15's the left round through-hole the upper end of connecting rod 16 in a left side, and consolidate with the pin, close-fitting cup joints in folding base member 15's the right round through-hole the upper end of connecting rod 17 in the right side, consolidate with the pin.

The left middle connecting rod 16 and the right middle connecting rod 17 are both composed of a round pipe and a bottom ring, the bottom ring is tightly sleeved at the lower end of the round pipe in a matching manner, the lower end of the round pipe on the left side is provided with the bottom ring to be called as a left middle connecting rod 16, the lower end of the round pipe on the right side is provided with the bottom ring to be called as a right middle connecting rod 17, the round pipe on the left side penetrates into a vertically-downward slotted round hole at the left end of the lower clamping piece, the lower end of the round pipe on the left side is tightly sleeved with the bottom ring and is reinforced by a pin, the bottom ring of the left middle connecting rod 16 is used as a limiting position of the left middle connecting rod 16, the left middle connecting rod 16 slides upwards in the vertically-downward slotted round hole at the left end of the lower clamping piece, the round pipe on the right side penetrates into the vertically-downward slotted round hole at the right end of the lower clamping piece, the lower end of the round pipe on the right side is tightly sleeved with the bottom ring and is reinforced by the bottom ring, the bottom ring of the right A bit.

The lower locking piece 18 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 slotted 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 slotted 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, 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 16 and the lower end of the right middle connecting rod 17 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 part 22 is an aluminum extruded section workpiece, and can also be an aluminum forging part or an aluminum die casting part, the front end of the front part 22 is in a groove shape, the upper part and the lower part of the rear end of the front part 22 are respectively provided with a transverse through hole, the upper side and the lower side of the groove shape of the front part 22 are provided with mutual opposite through holes, the upper side and the lower side of the groove shape of the front part 22 are in a round angle, and the mutual opposite through holes on the upper side and the lower side of the groove shape of the front part 22 are connected with two bearings in a shaft tube through opposite locking bolts.

The middle beam 3 comprises a beam tube 31, an inner chock block, a rear chock cover, a groove-shaped piece 32 and a rear wheel fastener 33, wherein the beam tube 31 is made of a rectangular tube thicker than the beam tube of a common bicycle, a pair of mutual through holes are respectively formed in the front and the rear of the left side and the right side of the front end part of the beam tube 31, a round hole is formed between the front and the rear of the left side of the front end part of the beam tube 31 and between the front and the rear of the two pairs of mutual through holes, a rectangular hole is formed in the right side of the front end part of the beam tube 31 and between the front and the rear of the front end part of the beam tube 31, two rectangular holes are transversely arranged in parallel, a rectangular locking hole is formed in the upper side of the rear end part of the beam tube 31, the inner chock block is a section of a rectangular extruded aluminum section, a round hole is respectively formed in the front and the rear of the inner chock block in the transverse direction, a rectangular hole is formed in the middle of the inner chock block in the upper and the lower side of the front end surface of the inner chock block, the, and the two transverse round holes at the front and back of the inner chock are corresponding to two pairs of mutual opposite through holes at the front and back of the front end part of the beam tube 31, the rectangular hole of the inner chock is corresponding to the rectangular hole at the right side surface of the front end part of the beam tube 31, the two pairs of mutual opposite through holes at the front and back of the front end part of the beam tube 31 are fixed with the two transverse round holes of the inner chock through two rivets, a lithium battery pack and a controller can be put into the tube hole of the beam tube 31, the rear chock cap is a rectangular plastic cover piece, the lower end of the rear chock cap is provided with two rectangular protrusions, the two rectangular protrusions at the lower end of the rear chock cap are corresponding to two transverse parallel rectangular holes at the lower side surface of the rear end part of the beam tube 31, the upper end of the rear chock cap is provided with a spring bolt which can be sprung, the spring bolt of the rear chock cap can be locked with the locking hole at the upper side surface of the rear end part of the beam tube 31, the groove, the lower ends of the left side and the right side of the channel-shaped part 32 are provided with mutual through holes, the upper part and the lower part of the rear bottom surface of the channel-shaped part 32 are respectively provided with a hole, the upper end of the rear bottom surface of the channel-shaped part 32 is provided with a backward folded edge, the upper hole and the lower hole of the rear bottom surface of the channel-shaped part 32 are fixedly screwed with an inner plug block positioned in a pipe hole at the front end of a beam pipe through two bolts, and the mutual through holes at the left side and the right side of the channel-shaped part 32 are rotationally connected with the transverse through holes at.

The rear wheel fastener 33 is composed 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 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 part of the beam tube 31 and a rectangular hole of the inner plug block, the left end of the connecting shaft penetrates into a round hole on the left side of the front end part of the beam tube 31 and extends out of the left side surface of the beam tube 31 leftwards, the pull knob is screwed with the left end of the connecting shaft and is made of plastic, the right end of the pull knob is provided with a threaded hole corresponding to the left end part of the connecting shaft, the lock head of the rear wheel fastener 33 can lock the rear, and the lock head is retracted towards the beam tube 31 by pulling towards the left through the pulling knob so as to be unlocked with the hub of the rear wheel.

The five-way pipe connecting piece 41 is an aluminum die casting or aluminum forging piece, the left upper part of the five-way pipe connecting piece 41 is a longitudinal rectangular tubular part, the lower part of the five-way pipe connecting piece 41 is a transverse round tubular part, the left lower part of the rectangular tubular part of the five-way pipe connecting piece 41 is provided with a longitudinal slit, the vertical direction of the longitudinal slit of the five-way pipe connecting piece 41 is provided with two pairs of mutually transverse pair perforations, the pipe hole of the round tubular part of the five-way pipe connecting piece 41 is tightly pressed into a five-way pipe 42, the pipe hole of the rectangular tubular part of the five-way pipe connecting piece 41 is sleeved in the middle of the beam pipe 31, two bolts are inserted into two pairs of mutual transverse pairs of through holes of the five-way pipe connecting piece 41, two nuts are screwed with two bolts penetrating two pairs of transverse through holes of the five-way pipe connecting piece 41, and the longitudinal slot of the five-way pipe connecting piece 41 is tightened, so that the effect that the five-way pipe connecting piece 41 is fixed in the middle of the beam pipe 31 is achieved.

The shock-absorbing connecting piece 5 is composed of a connecting piece 51, a shock-absorbing block, an elastic connecting piece 52 and a towing wheel 53, wherein the connecting piece 51 is an aluminum die-cast piece or an aluminum forged piece, the left upper part of the connecting piece 51 is provided with a groove-shaped part with a forward opening, two sides of the groove-shaped part of the connecting piece 51 are provided with a pair of mutual opposite through holes, the rear lower part of the groove-shaped part of the connecting piece 51 is provided with a transverse through hole, the left lower part of the connecting piece 51 is provided with a longitudinal rectangular through hole, the left lower part of the rectangular through hole of the connecting piece 51 is provided with a longitudinal slit, the vertical direction of the longitudinal slit at the left lower part of the connecting piece 51 is provided with two pairs of mutual transverse holes, the front end of the right part of the connecting piece 51 is an upward vertical edge, the upward vertical edge of the connecting piece 51 is provided with three longitudinal holes at the left middle and right, the lower part of the right part of the connecting piece 51 is provided, the shock-absorbing block is characterized in that a pair of mutual opposite through holes on two sides of a groove-shaped part of the connecting piece 51 are rotationally connected with the saddle, a longitudinal rectangular through hole of the connecting piece 51 is sleeved at the rear end of the beam tube 31, a transverse through hole on the rear lower part of the connecting piece 51 is rotationally connected with the rear fork 6 through the matching of a rear rotating shaft 63, a rotating shaft liner tube and a locknut, the left longitudinal hole and the right longitudinal hole on the upward vertical edge of the connecting piece 51 are respectively matched through a movable joint bolt, a thickened gasket and a screw tube of an opposite locking bolt, the shock-absorbing block is connected behind the upward vertical edge of the folding connecting piece 51, the ring-shaped head and the thickened gasket of the movable joint bolt are positioned in front of the upward vertical edge of the folding connecting piece 51, the shock-absorbing block is made of polyurethane, the shock-absorbing block is rectangular block, the left side and the right side of the shock-absorbing block are respectively provided with a longitudinal connecting hole, and a longitudinal, the connecting hole of the shock-absorbing block is a through hole with the rear part being a counter bore and the front part being communicated with a counter bore, the two connecting holes of the shock-absorbing block are connected with the upward vertical edge of the connecting piece 51 through the matching of a screw cylinder of a locking bolt and an eyelet bolt, the elastic connecting piece 52 is composed of a long rod eyelet bolt and a screw hole steel ball, the long rod eyelet bolt of the elastic connecting piece 52 penetrates into a middle longitudinal hole of the upward vertical edge of the connecting piece 51 and the through hole of the shock-absorbing block from front to back, then the screw hole steel ball is screwed on a thread at the rear end of the eyelet bolt of the elastic connecting piece 52, and the ring-shaped head of the long rod eyelet bolt of the elastic connecting piece 52 is connected with the ring-shaped heads of the two eyelet bolts positioned in front of.

Tow boat 53 constitute by long bolt, two bushing pipes and two tow boats, long bolt penetrate in two tow boats, in two bushing pipes with in the horizontal perforation of connecting piece 51 flute portion rear lower place, and twist with locknut and connect, connect two tow boats in the both sides of connecting piece 51 flute portion rear, the tow boat is plastic wheel hub's PU wheel, respectively inlays a deep groove ball bearing in the centre of PU wheel both sides face, still is lined with a junk ring between the two deep groove ball bearing of PU wheel, the opening of two tow boats be less than two crank open shelves, and be located two crank open shelves inboard.

The rear fork piece 6 comprises two rear fork pieces 61, a shock-absorbing baffle piece 62, a rear rotating shaft 63 and a rotating shaft liner tube, wherein the two rear fork pieces 61 are formed by punching an aluminum sheet, a connecting hole corresponding to the diameter of the rear rotating shaft 63 is formed in the front lower part of each rear fork piece 61, the lower edges of the two rear fork pieces 61 are in an upward arc concave shape, the front upper parts of the two rear fork pieces 61 are riveted with the shock-absorbing baffle piece 62, the rear ends of the two rear fork pieces 61 are provided with U-shaped openings with backward openings, the middle parts of the two rear fork pieces 61 are punched with convex semicircular reinforcing ribs, the two rear fork pieces 61 comprise a left rear fork piece and a right rear fork piece, the rear parts of the right rear fork pieces are bent at two right angles and then at left angles, a hole for penetrating a chain is formed in the surface of the right rear fork piece, the shock-absorbing baffle piece 62 is formed by punching an aluminum sheet, and the left and right edges of the shock-absorbing baffle piece 62 are respectively provided with a right-angled hem, the middle part of the shock-absorbing blocking piece 62 is provided with a longitudinal spring-out hole, the spring-out hole of the shock-absorbing blocking piece 62 corresponds to the screw steel ball of the spring-out piece 52 in size, the two right-angle hems of the shock-absorbing blocking piece 62 are riveted with the front upper parts of the two back fork pieces 61 through rivets, the back rotating shaft 63 is a shaft-shaped bolt, the right end part of the back rotating shaft 63 is provided with a shaft head for connecting two bearings, the left end of the back rotating shaft 63 is provided with threads, the two connecting holes at the front lower part of the two back fork pieces 61 correspond to the transverse through hole at the rear lower part of the connecting piece 51, the back rotating shaft 63 penetrates into the connecting hole of the right back fork piece, the transverse through hole at the rear lower part of the connecting piece 51, the lining pipe of the rotating shaft and the connecting hole of the left back fork piece from right to left, and is screwed on the left end of the back rotating shaft 63 through a, the rear fork element 6 is rotatably connected to the rear lower part of the connecting piece 51.

When the back fork member 6 expand, the spring coupling hole of shock-absorbing blocking piece 62 with have dislocation from top to bottom slightly between the screw steel ball of spring coupling piece 52, because the polyurethane of shock-absorbing piece not only has fore-and-aft elasticity, has elasticity about from top to bottom moreover, consequently, under the condition that the manpower pushed down, the screw steel ball of spring coupling piece 52 slides in the spring coupling hole of shock-absorbing blocking piece 63, the realization the spring coupling piece 52 with the spring coupling hole of shock-absorbing blocking piece 62, and let shock-absorbing blocking piece 63 with shock-absorbing piece lean on mutually and produce the effect of moving away to avoid possible earthquakes, back fork member 6 with back pivot 63 be the folding of the place ahead under the axial, back fork member 6 folding back, back wheel fastener 33 can detain the wheel hub of back wheel.

The saddle 7 comprises a seat tube 71, a locking piece 72, a connecting rod 73, a saddle 74 and a folding positioning lock 75, wherein the seat tube 71 comprises a rectangular seat tube, an upper plug piece and a round saddle tube, the rectangular seat tube is formed by bending the upper end of a rectangular tube to the right side, the upper plug piece is tightly inserted into a tube hole at the upper end of the rectangular seat tube, the upper plug piece is a cut-off workpiece of a rectangular aluminum extruded section with a round hole at the front and the back, threads are tapped in the front and the back round holes of the upper plug piece, the upper end of the rectangular seat tube is connected with the upper plug piece and is driven into a pin for reinforcement, the rectangular metal tube is tightly sleeved in the tube hole at the lower end of the rectangular seat tube, the lower end part of the rectangular seat tube and the rectangular metal tube sleeved in the rectangular seat tube are respectively provided with a transverse through hole at the upper and the lower parts and are respectively provided with a long hole at the back side, the round saddle tube is formed by processing a metal round tube, the front and the back ends of the round saddle tube are, the lower transverse through hole at the lower end part of the rectangular seat pipe is rotationally connected with a pair of mutual opposite through holes at two sides of the groove-shaped part of the connecting piece 51 through an opposite locking bolt, the middle transverse through hole at the lower end part of the rectangular seat pipe is connected with the ring shape of the hook-shaped piece of the locking piece 72 through the opposite locking bolt, the locking piece 72 is composed of a hook-shaped piece and a tension spring, the hook-shaped piece is a metal part with the ring-shaped front end and the hook-shaped rear end, the hook shape of the hook-shaped piece is a downward tongue-shaped locking piece, the hook shape of the hook-shaped piece penetrates through the long hole at the rear side surface of the lower end part of the rectangular seat pipe, the transverse hole in front of the hook shape of the hook-shaped piece is positioned in the pipe hole at the lower end part of the rectangular seat pipe, one end of the tension spring is connected with the transverse hole of the hook-shaped piece, one end of the tension spring is connected with the opposite locking bolt, the rear end of the connecting rod 73 penetrates into an upper transverse through hole at the lower end part of the seat tube from left to right and is screwed in a threaded hole at the rear end of the connecting rod 73 for positioning by a bolt, the connecting rod 73 is a component which is formed by pressing the front end and the rear end of a metal round steel into right-angled bends, two threaded holes are respectively formed at two end points of the front right-angled bend and the rear end of the connecting rod 73, the front end of the connecting rod 73 penetrates into a transverse through hole above the rear end of a front connecting piece from left to right and is screwed in a threaded hole at the front end of the connecting rod 73 for positioning by a bolt, the saddle 74 is connected on the round saddle tube, the folding positioning lock 75 consists of a base frame, a round hole plug, a locking joint, a spring and a pull handle, the base frame is a cutting and machining piece of an aluminum profile, the front part of the base frame is a vertical rectangular tube hole, the rear part of the base frame, the fixed round hole stopper of bed frame rectangular hole lower extreme, there is a decurrent round hole in the centre of round hole stopper, lock joint comprises tapered end and locking lever, the tapered end is ascending tongue shape, the locking lever is connected to the below of tapered end, the lower extreme of locking lever has the transverse hole, the locking lever penetrates in the spring and in the round hole stopper decurrent round hole, and make tapered end sliding connection in the rectangular tube hole of bed frame, the pull handle is connected to the transverse hole of locking lever, the pull handle has pull handle bolt and two plastics pull handles to constitute, when with saddle 7 folding forward, the lock joint of folding location lock 75 can with the hem lock joint that channel section spare 32 is backward, pull back the pull handle of folding location lock 75, the lock joint of folding location lock 75 can with the hem that channel section spare 32 is backward loosens, can with saddle 7 with well roof beam 3 with front part 21 expand.

The front wheel 81 is an 8-inch wheel, two ends of a wheel shaft of the front wheel 81 are arranged in n-shaped openings of the two front fork rods through matching of nuts, the rear wheel 82 is a 10-inch wheel, and two ends of a wheel shaft of the rear wheel 82 are fixedly connected in the U-shaped openings of the two rear fork blades 61 through matching of nuts.

The driving mechanism 91 comprises a middle shaft, two cranks, a chain wheel, two pedals, a front-stage small chain wheel, a rear-stage chain wheel, a shaft sleeve, a flywheel, a front-stage chain and a rear-stage chain, the middle shaft is connected in the five-way pipe through a middle shaft accessory, two cranks are installed at the two ends of a middle shaft, a chain wheel is fixedly connected to the right crank of the two cranks, two pedals are respectively connected to the two cranks, a front-stage small chain wheel and a rear-stage chain wheel are respectively and fixedly connected to the right end and the left end of a shaft sleeve, a bearing is respectively embedded at the left end and the right end of the shaft sleeve, the shaft sleeve is sleeved and connected to the right end part of a rear rotating shaft 63 through the bearing at the left end and the bearing at the right end, a flywheel is connected to the right side of a rear wheel 82, a front-stage chain is wound on the chain wheel and the small chain wheel, a rear-stage chain is wound on the rear-stage chain wheel and the flywheel, and the annular rear-stage chain penetrates through a.

The electric drive system 92 includes: the device comprises a hub motor, a battery, a controller, a control switch and a power assisting sensor, wherein the motor is a brushless hub motor, the motor is integrally configured and combined with the hub of the rear wheel 82, the battery is a lithium battery pack connected in series, the controller is a brushless motor controller, the battery and the controller are both arranged in the beam tube, the control switch comprises a power-off brake handle and a power control lock, the power control lock is arranged on the side surface of the metal rectangular tube, the power-off brake handle is arranged on the left handle 11 and the right handle 12, the power-assisted sensor is arranged at the joint of the middle shaft and the chain wheel, the power supply controls the lock, the power-off brake handle and the power-assisted sensor, the controller is connected with the battery and the rear wheel 82 through connecting wires and connectors.

Claims

1. The utility model provides a portable foldable electric bicycle, is including folding handlebar, front fork, front part, well roof beam, five-way pipe even piece, five-way pipe, the formula of moving away to avoid possible earthquakes even piece, back fork spare, saddle, front wheel, rear wheel, manpower actuating mechanism and electric drive system that take flexible section, characterized by: the folding handlebar with the telescopic section comprises a left handle, a right handle, a latch hook part, a locking part, a folding base part, a left middle connecting rod, a right middle connecting rod and a lower latch part, wherein the left handle and the right handle are both composed of a vertical pipe and a horizontal pipe, the vertical pipe is divided into an upper part, a middle part and a lower part, the upper part of the vertical pipe is a vertical head, the vertical head is provided with an omega-shaped connecting port and is connected with the horizontal pipe through the omega-shaped connecting port, the middle part of the vertical pipe is a metal round pipe, the lower part of the vertical pipe is a thick-wall metal round pipe, a nylon pipe sleeve is sleeved on the thick-wall metal round pipe, the upper end of the thick-wall metal round pipe at the lower part of the vertical pipe is tightly sleeved in a lower end pipe hole at the middle part of the vertical pipe, the lower end of the vertical pipe is provided with a pair of through holes, the pair of the lower end of the vertical pipe of the left handle is, the left end of the handle horizontal pipe of the right handle is provided with a locking hole, the left side of the locking hole of the handle horizontal pipe of the right handle is provided with a locking piece, the locking piece can hold the right end of the handle horizontal pipe of the left handle tightly, the left front end of the folding base piece is provided with a vertical left groove, two sides of the lower end of the left groove of the folding base piece are provided with a pair of mutual through holes, the right front end of the folding base piece is provided with a vertical right groove, two sides of the lower end of the right groove of the folding base piece are provided with a pair of mutual through holes, the left rear end of the folding base piece is provided with a vertical left round through hole, the right rear end of the folding base piece is provided with a vertical right round through hole, the left rear end round through hole of the folding base piece is sleeved with a left middle connecting rod, the right rear end round through hole of the folding base piece; 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 slot of the left front slotted round hole of the lower clamping piece is provided with a left lug, the right side of the slot of the right front slotted round hole 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 of the left side of the lower clamping piece is provided with a vertical round hole, the rear end of the left side of the lower clamping piece is provided with a vertical slotted round hole, the slotted round hole at the rear end of 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 slotted round holes at the left front end and the right front end of the lower clamping piece, 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 end of the front piece is connected with two bearings in a front axle tube, the middle beam is composed of a beam tube, an inner chock block, a rear chock cover, a groove-shaped piece and a rear wheel fastener, the beam tube is made of a rectangular tube thicker than the common bicycle beam tube, the inner chock block is plugged in the front end of the beam tube, a lithium battery pack and a controller can be placed in a tube hole of the beam tube, the rear end of the tube hole of the beam tube is covered with the rear chock cover, the front end of the inner chock block is connected with the groove-shaped piece, the rear wheel fastener is connected in the front end of the beam tube and the inner chock block, the groove-shaped piece is rotatably connected with the front piece, the middle part of the beam tube is sleeved with a five-way tube connecting piece, the five-way tube is embedded in the five-way tube connecting piece, the shock-proof connecting piece is composed of a connecting piece, a shock-proof block, an elastic connecting piece and a towing wheel, the left upper part of the connecting piece is provided with a groove-shaped part with a front opening, the vertical direction of the longitudinal slit at the lower left of the connecting piece is provided with two pairs of mutual transverse holes, the front end of the right part of the connecting piece is an upward vertical edge, the upward vertical edge of the connecting piece is provided with three longitudinal holes at the left, the middle and the right, the lower part of the right part of the connecting piece is provided with a connecting surface vertical to the upward vertical edge of the connecting piece, the rear lower part of the right part of the connecting piece is provided with a transverse through hole, the groove-shaped part of the connecting piece is rotatably connected with the saddle, the longitudinal rectangular through hole of the connecting piece is sleeved at the rear end of the beam tube, the transverse through hole at the rear lower part of the connecting piece is rotatably connected with the back fork piece through a rear rotating shaft, the left and the right longitudinal holes at the upward vertical edge of the connecting piece are connected with the shock absorption block through two movable joint bolts and screw cylinders of two pairs of locking bolts, the ring-shaped heads of the two movable joint bolts exposed in front of the upward vertical edge of, the elastic connecting piece consists of a long rod eyelet bolt and a screw steel ball, the screw steel ball is screwed at the rear end of the long rod eyelet bolt, and the towing wheel is connected with a transverse through hole at the rear lower part of the groove-shaped part of the connecting piece; the rear fork piece is composed of two rear fork pieces, a shock-absorbing blocking piece and a rear rotating shaft, the shock-absorbing blocking piece is connected to the front upper parts of the two rear fork pieces, the shock-absorbing blocking piece is abutted to the shock-absorbing block to generate a shock-absorbing effect, the rear fork piece can be folded downwards and forwards by taking the rear rotating shaft as an axial direction, and a rear wheel fastener positioned in the front part of the middle beam can buckle a rear wheel after the rear fork piece is folded; the connecting rod of the saddle is rotationally connected with a seat tube and a front piece of the saddle, the front wheel is arranged on the front fork, the rear wheel is arranged on the two rear fork pieces, the saddle is folded forwards, and the saddle is connected with the front piece, the folding handlebar with the telescopic section, the front fork and the front wheel and is folded towards the lower part of the middle beam; the manual driving mechanism comprises a middle shaft, two cranks, a chain wheel, two pedals, a front-stage small chain wheel, a rear-stage chain wheel, a shaft sleeve, a flywheel, a front-stage chain and a rear-stage chain, the middle shaft is rotatably connected in a five-way pipe, the two cranks are arranged at the two ends of the middle shaft, the chain wheel is fixedly connected on the crank on the right side of the two cranks, the front-stage small chain wheel and the rear-stage chain wheel are connected to a rear rotating shaft through the shaft sleeve, the flywheel is connected to a rear wheel, the front-stage chain is wound on the chain wheel and the small; the electric driving system comprises a motor, a battery, a controller, a control switch and a power-assisted sensor, wherein the motor is arranged on the rear wheel.

2. The portable folding electric bicycle according to claim 1, wherein: the middle lower part of the vertical 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 below an omega-shaped connector of the vertical head, a threaded hole is arranged on the vertical rear side of the slit below the omega-shaped connector of the vertical head, the threaded hole below the omega-shaped connector of the vertical head is longitudinally corresponding to the through hole below the omega-shaped connector of the vertical head, the cylindrical outer diameter of the concave inclined surface of the vertical head is the same as the outer diameter of the vertical pipe, a cylinder is integrally connected below the cylindrical concave inclined surface of the vertical head, the downward cylinder of the vertical head is tightly sleeved in a pipe hole at the top end of a middle circular pipe of the vertical pipe, and a nylon pipe sleeve of the vertical pipe and the lower end of a thick-wall metal circular pipe are provided with a pair of through holes.

3. The portable folding electric bicycle according to claim 1, wherein: the utility model discloses a horizontal pipe of left hand (hold) is violently managed the top of right part and is opened there is a hole, again with latch hook spare install in the tube hole of horizontal pipe right-hand member of left hand (hold) with in the trompil of the right part top of horizontal pipe of left hand (hold), latch hook spare constitute by latch hook, torsional spring and button, the latch hook is become by a sheetmetal punching press, fifty percent discount in the middle of the sheetmetal of latch hook, the right-hand member of latch hook is ascending hook-shape, the middle part of latch hook is ascending pole-shaped, the sheetmetal of latch hook is middle to compromising tightly with one end of torsional spring, latch hook and torsional spring put into together in the tube hole of horizontal pipe right-hand member of left hand (hold) back, the another of torsional spring supports downwards the tube hole inner wall of horizontal pipe of left hand (hold), the ascending pole-shaped in middle part of latch hook is worn out the.

4. The portable folding electric bicycle according to claim 1, wherein: the locking device is characterized in that a locking hole is formed above the left end of the handlebar transverse pipe of the right handle, a locking part is connected to the left end of the handlebar transverse pipe of the right handle through a pin, the locking part is composed of a slotted ring and a locking quick release, the slotted ring is formed by cutting and processing an aluminum extruded section, the periphery of the slotted ring is in a horseshoe shape, an inner ring hole is circular, a slot is formed in the front side of the slotted ring, a vertical through hole is formed in the slotted direction of the slotted ring, the slotted ring is positioned in a transverse arc concave shape on the vertical through hole, the locking quick release is composed of a quick release handle, a ring head bolt, an arc-shaped gasket and a locknut, the quick release handle is rotationally connected with the ring head bolt through riveting, the ring head bolt penetrates into the arc-shaped gasket from top to bottom and the vertical through hole of the slotted ring, then the locknut is screwed with the lower end of the ring head bolt, after the locking hook piece in the handlebar transverse pipe of the left handle is locked with, simultaneously the right-hand member of the horizontal handle pipe of left hand (hold) penetrates behind the inner circle hole of the circle of cracking of retaining member, to the quick detach handle of the rotatory locking quick detach of rear lower plate, can let the circle of cracking of retaining member hold tightly the right-hand member of the horizontal handle pipe of left hand (hold).

5. The portable folding electric bicycle according to claim 1, wherein: the rear wheel fastener is composed 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 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 beam tube and a rectangular hole of the inner plug block, the left end of the connecting shaft penetrates into a round hole on the left side of the front end of the beam tube and extends out of the left side of the beam tube leftwards, the pull knob is screwed with the left end of the connecting shaft and is made of plastic, and the right end of the pull knob is provided with.

6. The portable folding electric bicycle according to claim 1, wherein: the left upper portion of the five-way pipe connecting piece is a longitudinal rectangular tubular portion, the lower portion of the five-way pipe connecting piece is a transverse round tubular portion, a longitudinal slit is formed in the left lower portion of the rectangular tubular portion of the five-way pipe connecting piece, two pairs of mutual transverse paired through holes are formed in the vertical direction of the longitudinal slit of the five-way pipe connecting piece, a five-way pipe is tightly pressed into a pipe hole of the round tubular portion of the five-way pipe connecting piece in a matched mode, the pipe hole of the rectangular tubular portion of the five-way pipe connecting piece is sleeved and connected to the middle portion of the beam pipe, two bolts penetrate into the two pairs of mutual transverse paired through holes of the five-way pipe connecting piece, the two nuts are screwed with the two bolts penetrating into the two pairs of mutual transverse paired through holes of the five-way pipe connecting.

7. The portable folding electric bicycle according to claim 1, wherein: the shock-absorbing block is made of polyurethane, the shock-absorbing block is rectangular, the left side and the right side of the shock-absorbing block are respectively provided with a longitudinal connecting hole, a longitudinal through hole is arranged between the two longitudinal connecting holes of the shock-absorbing block, the connecting hole of the shock-absorbing block is a through hole with a counter bore at the rear part and penetrating through the front part, and the two connecting holes of the shock-absorbing block are connected with the upward vertical edge of the connecting piece through the matching of a screw cylinder of a locking bolt and an eyelet bolt.

8. The portable folding electric bicycle according to claim 1, wherein: two the preceding below of back fork piece all have with the connecting hole that the diameter of back pivot corresponds, two the lower border of back fork piece all is ascending circular arc spill, and there is two right angles bending right again left at the rear portion of right back fork piece, on the face of bending right at right back fork piece, has a hole of wearing the chain, there is a fore-and-aft spring coupling hole at the middle part of the separation blade of moving away to avoid possible earthquakes, the size of separation blade spring coupling hole of moving away to avoid possible earthquakes with the screw steel ball of spring coupling piece is corresponding, the spring coupling hole of separation blade of moving away to avoid possible earthquakes with have dislocation from top to bottom slightly between the screw steel ball of spring.

9. The portable folding electric bicycle according to claim 1, wherein: two connecting holes of the front lower part of the rear fork piece correspond to the transverse through hole of the rear lower part of the connecting piece, the rear rotating shaft penetrates into the connecting hole of the right rear fork piece from right to left, the transverse through hole of the rear lower part of the connecting piece, the rotating shaft liner tube and the connecting hole of the left rear fork piece, the left end of the rear rotating shaft penetrates out of the connecting hole of the left rear fork piece from left to left, and is screwed on the left end of the rear rotating shaft by using a locknut, and the rear fork piece is rotatably connected with the rear lower part of the connecting piece.

10. The portable folding electric bicycle according to claim 1, wherein: the electric motor and the hub of the rear wheel are integrally configured and combined, the controller is a brushless motor controller, the battery and the controller are placed in a beam tube, the control switch comprises a power-off brake handle and a power control lock, the power-off brake handle is installed on the left handle and the right handle, the power sensor is installed at the joint of the middle shaft and the chain wheel, the power control lock, the power-off brake handle and the power sensor are connected with the controller through a connecting wire and a connector, and the controller is connected with the battery and the rear wheel through a connecting wire and a connector.