CN206750033U

CN206750033U - A kind of folding electric bicycle of optimization design

Info

Publication number: CN206750033U
Application number: CN201720476580.0U
Authority: CN
Inventors: 黄芳笔
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-02
Filing date: 2017-05-02
Publication date: 2017-12-15
Anticipated expiration: 2027-05-02

Abstract

The utility model discloses a kind of folding electric bicycle of optimization design, including folding roof beam structure, the seat being connected with roof beam structure by chair seat frame, the yaw frame, the handle, the trailing wheel that is connected with roof beam structure by rear wheel frame that are connected with yaw frame that are flexibly connected with roof beam structure；The bottom of yaw frame is connected by front wheel carrier with front-wheel；It is connected by battery-driven motor with rear wheel drive；The brake member controlled by handle is equipped with front and rear wheel；Roof beam structure includes the forward and backward roof beam structure of rectangular-shape；The adjacent face of forward and backward roof beam structure is inclined-plane, and two beveled ends are hinged by binge and latched by roof beam structure locking fastener and fixed；Angle, the angle at obtuse angle are pushed up upward in obtuse angle each other when preceding roof beam structure and rear roof beam structure are flattened completely using binge as rotating shaft；Chair seat frame is telescopic；Yaw frame is telescopic foldable；Handle is folding；Foot-operated is folding.More compact structure, function are more complete, space-consuming is smaller, easily portable after folding.

Description

A kind of folding electric bicycle of optimization design

Technical field

The utility model belongs to electric bicycle technical field, more particularly to a kind of foldable electric of optimization design is voluntarily Car.

Background technology

Electric energy is most cleaned, is most environmentally friendly, using most convenient and transformation efficiency highest energy form, in the city being on the rise Under the international situation of the petroleum resources of city's environmental pollution and increasingly exhaustion, particularly in urban transportation increasingly congestion, price of oil going up sky-high Background under, it is on and off duty and public transport mode is used in trip instead and bicycle has become proprietary common recognition less with private car. But bicycle can not meet the requirement of user when far away, or public transport mode includes subway and bus etc. Usually away from office and residence, it is necessary to which other vehicles are plugged into, this segment distance is gone on a journey.Foldable motor-assisted bicycle Above-mentioned needs are met, folding electric bicycle is most environmentally friendly, using most convenient, the economical and practical trip vehicles.

As the improvement of people's living standards, the enhancing of low-carbon environment-friendly and green and healthy consciousness, bicycle is once again by people Favor.But as urban transportation is increasingly crowded, it is substantially insufficient to deposit parking space, along with bicycle is easier to be stolen, this A little problems have impact on the enthusiasm that people cycle trip again.Then people's utility model folding bicycle, in the hope of not ridden in stroke Period can be easy to carry, and can saves parking space during storage.

Such as：Authorization Notice No. is CN100540389, in the Chinese patent of entitled " folding electric bicycle ", is related to A kind of folding electric bicycle, including handlebar, vehicle frame, saddle, front and back wheel, electric driver, in handlebar support tube with being used for The pipe internal cavity of the locking sleeve of fixed handlebar support tube is provided with handlebar folder, and the handlebar folder includes being arranged on lock The first connector in tight set pipe, the 3rd connector in handlebar support tube and respectively with first connector The second connector that is be hinged with the 3rd connector and being rotated after handlebar support tube pulls out from locking sleeve around pin joint.Its Frame, pedal, handlebar and saddle can folding shrinking, with Portable belt and storage.Rechargeable battery and control system It is hidden in frame cross, all control circuits are built in various pipe fittings, are greatly reduced the failure caused by damage, are made Obtain vehicle appearance simple and beautiful.

Using the folding electric bicycle of such technology it is of course possible to ride using simultaneously folding square Portable belt, but still have Following shortcoming：

A, its vehicle frame is by the way that compared with chain link, roof beam structure is integrally horizontal in-line by two horizontally disposed crossbeams And centre is provided with pin joint, it is clear that stress intensity is limited, and security is not good enough.

B, its handlebar support tube is only scalable, it is impossible to folds, structure is not compact enough.

C, its handlebar can not fold, and structure is not compact enough.

D, the structure of its foot-operated or traditional bicycle and man, is connected, structure is not compact enough provided with chain with rear wheel drive.

E, damping device is not provided with, is ridden not comfortable enough.

F, without parking leg, without car light.It is not convenient enough to park, and rides also not safe enough.

G, its brake gear, which has no, exclusively carries out optimization design, and structure is not compact enough.

In summary, the folding electric bicycle uses compact after security, the comfortableness ridden, folding Property, portability etc. is insufficient, using effect is preferable not enough.

Utility model content

For overcome the deficiencies in the prior art, it is neater that the utility model provides a kind of more compact structure of optimization design, function Entirely, smaller, the easily portable folding electric bicycle of space-consuming, using effect are more preferable after folding.

The utility model is that technical scheme is used by reaching above-mentioned technical purpose：A kind of folding electric of optimization design Dynamic bicycle, including folding roof beam structure, be connected with roof beam structure by chair seat frame seat, be flexibly connected with roof beam structure yaw frame, The handle of left and right two, the trailing wheel being connected with roof beam structure by the rear wheel frame of crotch formula being connected with yaw frame upper end；The bottom of yaw frame It is connected by the front wheel carrier of crotch formula with front-wheel；It is connected by battery-driven motor with rear wheel drive；In front wheels and rear wheels It is equipped with the brake member controlled by handle；Described roof beam structure includes the preceding roof beam structure of rectangular-shape and rear roof beam structure；Preceding roof beam structure is with after The adjacent face of roof beam structure is inclined-plane, and two beveled ends are hinged by binge and latched by roof beam structure locking fastener and fixed；Before Angle, the angle at obtuse angle are pushed up upward in obtuse angle each other when roof beam structure and rear roof beam structure are flattened completely using binge as rotating shaft；Roof beam structure afterwards Rear end and rear wheel frame top surface between pressure be provided with damping spring；Described chair seat frame is included vertically to through being arranged on rear roof beam structure The seat support extension sleeve in upper stage casing, the seat support expansion link that up and down can be plugged on seat support extension sleeve, it is located at seat support and stretches Seat height locking device at the top of sleeve；The top of seat support expansion link and seat bottom are fastenedly connected；Described yaw frame bag Include it is anterior through preceding roof beam structure towards the upward and downward that retreads and with preceding roof beam structure by the yaw extension sleeve of bearing support connection, can live up and down Dynamic yaw expansion link, the yaw being located at the top of yaw extension sleeve for being plugged in yaw extension sleeve upper end nozzle highly locks Part；The bottom of yaw extension sleeve is fixedly connected with the top of front wheel carrier, the top of yaw expansion link by handle connecting seat with Two handles connect；Truncation surface is provided with by cylinder on the cylinder at the bottom of yaw extension sleeve and top positioned at preceding roof beam structure Two sections are divided into, can bending connection by yaw bending rod lock component between two sections of cylinders.

The brake member controlled by handle is equipped with described front wheels and rear wheels is：The brake member of front-wheel includes and front-wheel The brake disc being coaxially disposed, the brake ribbon for being bent into arc-shaped and being set on brake disc disk side face；One end of brake ribbon passes through Brake ribbon fastener is fastened on front wheel carrier, the end of the other end of brake ribbon and callipers brake line is fastened by braking rope band connection part Connect, the brake handle connection on the other end and handle of callipers brake line；The brake member of trailing wheel is the button by being located on handle The electric control brake part of control.

Described handle connecting seat is a short axle jacket type piece, and the top of the bottom axle sleeve mouth and yaw expansion link of type part is consolidated Fixed connection, the top of type part are provided with the prolate box-shaped connector at car rear, along front and back on prolate box-shaped connector Two handle lock holes are offered to spacing；The handle of left and right two is closely cut with scissors by being located at two handles by the corresponding connection rotating disk held Even；The top for connecting the periphery of rotating disk is provided with stud hole, is provided with the extended stud hole in top in stud hole and bottom can live The dynamic stud fixed in connection rotating disk cavity；The bottom pressure of stud is provided with back-moving spring；The circle centre position of connection rotating disk offers Rotating disk axis hole, rotating disk axis hole interpolation are provided with pull bar, and pull bar one end is drawn with axle jacket type piece to be connected, and the pull bar other end stretches out corresponding connect The rotating disk axis hole of rotating disk is connected with hold-down column；The external part of pull bar is provided with pin-and-hole, and hold-down column is one and is provided with eccentric shaft conduct The cylindrical piece of pin；Pin-and-hole is connected by pin with hold-down column, is compressed cylinder and is provided with handlebar locked handle；When the handle of left and right two is with pull bar When going to coaxial line for rotating shaft, two studs just lock clamping with corresponding handlebar locked hole.

The front end face of described preceding roof beam structure is provided with car light；Described front wheel carrier is provided with front mudguard；Described trailing wheel Frame is provided with rear mudguard.

Cavity is provided with described rear roof beam structure support body；Described battery is located in cavity.

Link is ridden on the anterior two sides of described preceding roof beam structure by corresponding deflectable bridge shape to connect respectively Have as the shaft-like foot-operated of leg；It is foot-operated to be hinged with foot-operated link by deflecting limitation locking part；Deflect limitation locking part It is spacing include foot-operated link and it is foot-operated between deflection angle be 90 degree spacing and foot-operated link and the deflection between riding Angle be 180 degree spacing and foot-operated link and it is foot-operated between deflection angle be 5 degree spacing；Folder between two foot-operated links Angle is 15-20 degree.

Described motor is the motor of setting coaxial with trailing wheel.

The beneficial effects of the utility model are：

A, because roof beam structure includes the preceding roof beam structure of rectangular-shape and rear roof beam structure；The adjacent face of preceding roof beam structure and rear roof beam structure is oblique Face, two beveled ends are hinged by binge and latched by roof beam structure locking fastener and fixed；Preceding roof beam structure and rear roof beam structure are cut with scissors with roof beam structure Chain is that angle, the angle at obtuse angle are pushed up upward in obtuse angle each other when rotating shaft flattens completely；Compared to preceding roof beam structure and the back rest in documents The structure that frame be arranged in parallel, this undoubtedly can the relative security reliability for improving car owner's beam while simultaneous solid portability.

B, because yaw frame includes pendulum of the oblique upward and downward through preceding roof beam structure front portion and with preceding roof beam structure by bearing support connection Head extension sleeve, it up and down can be plugged in the yaw expansion link of yaw extension sleeve upper end nozzle, be located at yaw extension sleeve The yaw height locking piece at top；The bottom of yaw extension sleeve is fixedly connected with the top of front wheel carrier, the top of yaw expansion link End is connected by handle connecting seat with two handles；The bottom of yaw extension sleeve and positioned at preceding roof beam structure top at cylinder It is provided with truncation surface and cylinder is divided into two sections, can bending connection by yaw bending rod lock component between two sections of cylinders.Therefore, The both flexibles of yaw frame, can also be folded.

C, because handle connecting seat is a short axle jacket type piece, the top of the bottom axle sleeve mouth and yaw expansion link of type part is consolidated Fixed connection, the top of type part are provided with the prolate box-shaped connector at car rear, along front and back on prolate box-shaped connector Two handle lock holes are offered to spacing；The handle of left and right two is closely cut with scissors by being located at two handles by the corresponding connection rotating disk held Even；The top for connecting the periphery of rotating disk is provided with stud hole, is provided with the extended stud hole in top in stud hole and bottom can live The dynamic stud fixed in connection rotating disk cavity；The bottom pressure of stud is provided with back-moving spring；The circle centre position of connection rotating disk offers Rotating disk axis hole, rotating disk axis hole interpolation are provided with pull bar, and pull bar one end is drawn with axle jacket type piece to be connected, and the pull bar other end stretches out corresponding connect The rotating disk axis hole of rotating disk is connected with hold-down column；The external part of pull bar is provided with pin-and-hole, and hold-down column is one and is provided with eccentric shaft conduct The cylindrical piece of pin；Pin-and-hole is connected by pin with hold-down column, is compressed cylinder and is provided with handlebar locked handle；When the handle of left and right two is with pull bar When going to coaxial line for rotating shaft, two studs just lock clamping with corresponding handlebar locked hole.Therefore, handle can fold.

D, due on preceding roof beam structure both sides by corresponding deflectable bridge shape ride link be connected to as leg It is shaft-like foot-operated；It is foot-operated to be hinged with foot-operated link by deflecting limitation locking part；Deflection the spacing of limitation locking part includes Foot-operated link and it is foot-operated between deflection angle be 90 degree spacing and foot-operated link and deflection angle between riding be 180 degree Spacing and foot-operated link and it is foot-operated between deflection angle be 5 degree spacing；Angle between two foot-operated links is 15-20 Degree.Therefore, it foot-operated can fold the leg that and can is fully deployed during as parking and use.

E, due to being provided with damping device, car light.Function is more complete.

F, it is not only light but also safe because its brake gear exclusively carries out optimization design.

In summary, the utility model more compact structure, function it is more complete, fold after space-consuming is smaller, is more convenient for taking Band, using effect are more preferable.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples.Wherein：

Fig. 1 is overall schematic of the present utility model；

Fig. 2 is the overall schematic of another line of vision of the present utility model；

Fig. 3 is that the utility model folds the schematic perspective view under collapsed state in roof beam structure；

Fig. 4 is the utility model in the overall schematic perspective view folded completely under collapsed state；

Fig. 5 is the schematic diagram of the hand handle part in the utility model；

Fig. 6 is that the local of the hand handle part in the utility model splits schematic diagram；

Fig. 7 is the local internal structure schematic diagram of the hand handle part in the utility model；

Fig. 8 is the partial schematic diagram of the front-wheel part in the utility model；

Fig. 9 is the schematic diagram of the brake ribbon part in the utility model；

Figure 10 is the schematic diagram of the beam portions in the utility model；

Figure 11 is the schematic diagram of the foot section in the utility model.

Marker number in accompanying drawing is described as follows：Handlebar locked handle 1, handle 2, yaw expansion link 3, yaw height locking piece 4th, yaw extension sleeve 5, yaw bending rod lock component 6, seat 7, seat support expansion link 8, seat height locking device 9, the back rest Frame 10, damping spring 11, rear mudguard 12, motor 13, rear wheel frame 14, trailing wheel 15, seat support extension sleeve 16, binge 17, Preceding roof beam structure 18, ride 19, foot-operated link 20, front mudguard 21, front wheel carrier 22, front-wheel 23, brake disc 24, brake ribbon 25, car Lamp 26, callipers brake line 27, roof beam structure locking fastener 28, handle connecting seat 29, stud 30, handlebar locked hole 31, connection rotating disk 32, pull bar 33rd, pin-and-hole 34, hold-down column 35, pin 36, stud hole 37, back-moving spring 38, rotating disk axis hole 39, brake ribbon fastener 40, braking rope Band connection part 41, battery 42

Embodiment

Embodiment of the present utility model, as shown in Figure 1 to 11, a kind of folding electric bicycle of optimization design, bag Include on folding roof beam structure, the seat 7 being connected with roof beam structure by chair seat frame, the yaw frame being flexibly connected with roof beam structure and yaw frame Hold the handle 2 of left and right two of connection, the trailing wheel 15 being connected with roof beam structure by the rear wheel frame 14 of crotch formula；The bottom of yaw frame passes through fork The front wheel carrier 22 of posture is connected with front-wheel 23；Pass through the motor 13 that battery 42 drives and the drive connection of trailing wheel 15；The He of front-wheel 23 The brake member controlled by handle 2 is equipped with trailing wheel 15；Described roof beam structure includes the preceding roof beam structure 18 of rectangular-shape and rear roof beam structure 10；The adjacent face of preceding roof beam structure 18 and rear roof beam structure 10 is inclined-plane, and two beveled ends are hinged by binge 17 and pass through roof beam structure The lock of locking fastener 28 is fixed；When preceding roof beam structure 18 and rear roof beam structure 10 are flattened completely with binge 17 for rotating shaft each other in obtuse angle Angle, the angle top at obtuse angle is upward；Pressure is provided with damping spring 11 between the top surface of the rear end of roof beam structure 10 and rear wheel frame 14 afterwards；Described chair Mounting is included vertically to through being arranged on the seat support extension sleeve 16 in stage casing on rear roof beam structure 10, up and down can be plugged in seat support Seat support expansion link 8 on extension sleeve 16, the seat height locking device 9 for being located at the top of seat support extension sleeve 16；Seat support stretches The top and the bottom of seat 7 of bar 8 are fastenedly connected；Described yaw frame include it is anterior through preceding roof beam structure 18 towards the upward and downward that retreads and with Preceding roof beam structure 18 by the yaw extension sleeve 5 of bearing support connection, up and down can be plugged in the upper end nozzle of yaw extension sleeve 5 Yaw expansion link 3, be located at the yaw height locking piece 4 at the top of yaw extension sleeve 5；The bottom of yaw extension sleeve 5 is with before The top of wheel carrier 22 is fixedly connected, and the top of yaw expansion link 3 is connected by handle connecting seat 29 with two handles 2；Stretched in yaw Cylinder is divided into two sections, two sections by the cylinder at bottom and positioned at preceding roof beam structure 18 the top of contracting sleeve 5 provided with truncation surface Can bending connection by yaw bending rod lock component 6 between cylinder.

Being equipped with the brake member controlled by handle 2 on described front-wheel 23 and trailing wheel 15 is：The brake member bag of front-wheel 23 The brake ribbon 25 for including the brake disc 24 being coaxially disposed with front-wheel 23, being bent into arc-shaped and be set on the disk side face of brake disc 24； One end of brake ribbon 25 is fastened on front wheel carrier 22 by brake ribbon fastener 40, the other end of brake ribbon 25 and callipers brake line 27 End is fastenedly connected by braking rope band connection part 41, and the other end of callipers brake line 27 is connected with the brake handle on handle 2；Trailing wheel 15 brake member is the electric control brake part of the button control by being located on handle 2.

Described handle connecting seat 29 is a short axle jacket type piece, the bottom axle sleeve mouth of type part and the top of yaw expansion link 3 End is fixedly connected, and the top of type part is provided with the prolate box-shaped connector at car rear, along preceding on prolate box-shaped connector Rear offers two handle lock holes 31 to spacing；The handle 2 of left and right two is by being located at two handles, the 2 nearly corresponding connection by holding Rotating disk 32 is hinged；The top for connecting the periphery of rotating disk 32 is provided with stud hole 37, and the extended post in top is provided with stud hole 37 The movable stud 30 fixed in the connection cavity of rotating disk 32 of nail 37 and bottom；The bottom pressure of stud 30 is provided with back-moving spring 38；The circle centre position of connection rotating disk 32 offers rotating disk axis hole 39, and pull bar 33, the one end of pull bar 33 and axle are inserted with rotating disk axis hole 39 Jacket type piece, which is drawn, to be connected, and the rotating disk axis hole 39 that the other end of pull bar 33 stretches out corresponding connection rotating disk 32 is connected with hold-down column 35；Pull bar 33 External part be provided with pin-and-hole 34, hold-down column 35 is one and is provided with cylindrical piece of the eccentric shaft as pin 36；Pin-and-hole 34 passes through pin 36 It is connected with hold-down column 35, the face of hold-down column 35 is provided with handlebar locked handle 1；When the handle 2 of left and right two is gone to altogether with pull bar 33 for rotating shaft During axis, two studs 30 just lock clamping with corresponding handlebar locked hole 31.

The front end face of described preceding roof beam structure 18 is provided with car light 26；Described front wheel carrier 22 is provided with front mudguard 21；Institute The rear wheel frame 14 stated is provided with rear mudguard 12.

Cavity is provided with the described support body of rear roof beam structure 10；Described battery 42 is located in cavity.

Link 20 is ridden on the anterior two sides of described preceding roof beam structure 18 by corresponding deflectable bridge shape to distinguish It is connected with shaft-like foot-operated 19 as leg；Foot-operated 19 are hinged with foot-operated link 20 by deflecting limitation locking part；Deflection limit The spacing and foot-operated link that the spacing deflection angle included between foot-operated link 20 and foot-operated 19 of position locking piece is 90 degree Deflection angle between 20 and foot-operated 19 is that the deflection angle between the spacing and foot-operated link 20 of 180 degree and foot-operated 19 is 5 degree It is spacing；Angle between two foot-operated links 20 is 15-20 degree.

Described motor 13 is the motor 13 with 15 coaxial setting of trailing wheel.

It is of the present utility model folding with deploy the step of be：

A, handlebar locked handle 1 is unclamped, because pin 36 is eccentric setting on hold-down column 35, hold-down column 35 turns to connection The thrust of disk 32 is released, and two studs 30 are depressed simultaneously with finger, and it is rotating shaft to bending with pull bar 33 by swing handle 2.

B, yaw height locking piece 4 is unclamped, yaw expansion link 3 is pressed into push-in yaw extension sleeve 5.

C, yaw bending rod lock component 6 is unclamped, the bending of yaw expansion link 3 by yaw extension sleeve 5 together with the inside It is abutted against afterwards with preceding roof beam structure 18.

D, seat height locking device 9 is unclamped, seat support expansion link 8 is pressed into push-in seat support extension sleeve 16.

E, the entirety after foot-operated 19 are folded with the corresponding foot-operated phase of link 20 folds with the preceding phase of roof beam structure 18 again.

F, roof beam structure locking fastener 28 is unclamped, preceding roof beam structure 18 is rolled over rear roof beam structure 10 with binge 17 for rotating shaft is relative It is folded.

G, the step of deploying is just opposite with above step.

Claims

1. a kind of folding electric bicycle of optimization design, including folding roof beam structure, it is connected with roof beam structure by chair seat frame After seat, the yaw frame being flexibly connected with roof beam structure, the handle of left and right two being connected with yaw frame upper end and roof beam structure are by crotch formula The trailing wheel of wheel carrier connection；The bottom of yaw frame is connected by the front wheel carrier of crotch formula with front-wheel；Pass through battery-driven motor It is connected with rear wheel drive；The brake member controlled by handle is equipped with front wheels and rear wheels；It is characterized in that：Described roof beam structure bag Include the preceding roof beam structure of rectangular-shape and rear roof beam structure；The adjacent face of preceding roof beam structure and rear roof beam structure is inclined-plane, and two beveled ends pass through roof beam structure Hinge is hinged and latched by roof beam structure locking fastener and fixed；Preceding roof beam structure and rear roof beam structure flatten phase completely by rotating shaft of binge Angle, the angle at obtuse angle are pushed up upward in obtuse angle between mutually；Pressure is provided with damping spring between the rear end of roof beam structure and the top surface of rear wheel frame afterwards；It is described Chair seat frame include vertically to through being arranged on the seat support extension sleeve in stage casing on rear roof beam structure, up and down can be plugged in seat support Seat support expansion link on extension sleeve, the seat height locking device being located at the top of seat support extension sleeve；The top of seat support expansion link Portion and seat bottom are fastenedly connected；Described yaw frame includes anterior through preceding roof beam structure towards the upward and downward that retreads and passed through with preceding roof beam structure The yaw extension sleeve of bearing support connection, the yaw expansion link that up and down can be plugged in yaw extension sleeve upper end nozzle, The yaw height locking piece being located at the top of yaw extension sleeve；The bottom of yaw extension sleeve and the top of front wheel carrier, which are fixed, to be connected Connect, the top of yaw expansion link is connected by handle connecting seat with two handles；In the bottom of yaw extension sleeve and before being located at Cylinder is divided into two sections by the cylinder at the top of roof beam structure provided with truncation surface, passes through yaw bending rod lock group between two sections of cylinders Part can bending connection.

A kind of 2. folding electric bicycle of optimization design according to claim 1, it is characterised in that：Described front-wheel It is by the brake member of handle control with being equipped with trailing wheel：The brake member of front-wheel include be coaxially disposed with front-wheel brake disc, The brake ribbon for being bent into arc-shaped and being set on brake disc disk side face；One end of brake ribbon is fastened on by brake ribbon fastener On front wheel carrier, the end of the other end of brake ribbon and callipers brake line be fastenedly connected by braking rope band connection part, callipers brake line it is another End is connected with the brake handle on handle；The brake member of trailing wheel is the electric control brake part of the button control by being located on handle.

A kind of 3. folding electric bicycle of optimization design according to claim 2, it is characterised in that：Described handle Connecting seat is a short axle jacket type piece, and the bottom axle sleeve mouth of type part is fixedly connected with the top of yaw expansion link, the top of type part It is provided with the prolate box-shaped connector at car rear, spacing offers two one or two along the longitudinal direction on prolate box-shaped connector Hand lock hole；The handle of left and right two is closely hinged by being located at two handles by the corresponding connection rotating disk held；Connect the periphery of rotating disk Top be provided with stud hole, the extended stud hole in top is provided with stud hole and bottom is movable fixes in connection rotating disk cavity Interior stud；The bottom pressure of stud is provided with back-moving spring；The circle centre position of connection rotating disk offers rotating disk axis hole, rotating disk axis hole interpolation Provided with pull bar, pull bar one end is drawn with axle jacket type piece to be connected, and the pull bar other end stretches out the rotating disk axis hole of corresponding connection rotating disk with compressing Post connects；The external part of pull bar is provided with pin-and-hole, and hold-down column is one and is provided with cylindrical piece of the eccentric shaft as pin；Pin-and-hole passes through pin It is connected with hold-down column, compresses cylinder and be provided with handlebar locked handle；When left and right two, handle goes to coaxial line using pull bar as rotating shaft, two Stud just locks clamping with corresponding handlebar locked hole.

A kind of 4. folding electric bicycle of optimization design according to claim 3, it is characterised in that：Described front-axle beam The front end face of frame is provided with car light；Described front wheel carrier is provided with front mudguard；Described rear wheel frame is provided with rear mudguard.

A kind of 5. folding electric bicycle of optimization design according to claim 4, it is characterised in that：The described back rest Cavity is provided with frame support body；Described battery is located in cavity.

A kind of 6. folding electric bicycle of optimization design according to claim 5, it is characterised in that：Described front-axle beam Link is ridden by corresponding deflectable bridge shape on the anterior two sides of frame and is connected to shaft-like pin as leg Step on；It is foot-operated to be hinged with foot-operated link by deflecting limitation locking part；Deflection the spacing of limitation locking part includes foot-operated connection Frame and it is foot-operated between deflection angle be 90 degree spacing and foot-operated link and the deflection angle between riding be the spacing of 180 degree and Foot-operated link and it is foot-operated between deflection angle be 5 degree spacing；Angle between two foot-operated links is 15-20 degree.

A kind of 7. folding electric bicycle of optimization design according to claim 6, it is characterised in that：Described motor It is the motor of setting coaxial with trailing wheel.