CN109131688A - Hand-held electric motor-car - Google Patents

Abstract

A kind of hand-held electric motor-car, the vehicle overturns saddle without beam with an integral-rotation cross handle, three section beam of a set of chain type, one, one hypognathous type battery flat or side port are battery flats, an and secondary flexible rear fork, cross handle is rotated integrally to be welded on common folding grip, three section beam of chain type uses sliding sleeve lock control folding position, no beam overturning saddle is mounted on hypognathous type battery flat or side port is the top of battery flat, foldable rear fork is mounted on hypognathous type battery flat or side port is the following of battery flat, and selection of Motor is mounted on front-wheel or rear-wheel；Rotate integrally the width that cross handle eliminates handle bar folding, three section beam of chain type shortens the length of bicycle beam folding, no beam overturning saddle and flexible rear fork have compressed the height of vehicle body folding, brushless motor micro drives system and disc brake brake system are especially used again, although complete vehicle weight is less than 4 kilograms, folding can be put into various satcheels, but its disc brake brake system that the width with 28 inches of cart handlebars and most strength is unfolded, reach the not only super reliable technological break-through of light and small portable but also riding safety, there is the progress meaning obviously innovated.

Description

Hand-held electric motor-car

Technical field

The present invention relates to a kind of hand-held electric motor-cars, and can packet interior carrying trip, extremely convenient.

Background technique

Electric vehicle is many kinds of, dazzling.Especially from the Segway Human Transporter ELECTRIC of American invention in 1998

SCOOTER(US005775452A since), various mini electric vehicles emerge one after another, as Segway Human Transporter, intelligent balance vehicle, Mars wheelbarrow, electric roller blades, minicar ..., the before long fashionable world.These mini electric vehicle small volume and less weights, altogether Same feature is no vehicle seat standing traveling, there is very big security risk, can not be passed through by traffic department of various countries.Shi Zhijin Day, there are no a light and small portable, safe and reliable mini electric vehicles to be succeeded.

Summary of the invention

For realize mini electric vehicle technological break-through, the technical solution used in the present invention is: hand-held electric motor-car have one Root rotate integrally cross handle, three section beam of a set of chain type, one overturn saddle, a hypognathous type battery flat or side port formula battery without beam Cabin and a secondary foldable rear fork, rotate integrally cross handle and are welded on common folding grip, three section beam of chain type is rolled over using sliding sleeve lock control Folded position, no beam overturning saddle are mounted on the top of hypognathous type battery flat or side port formula battery flat, and foldable rear fork is mounted on lower mouth Formula battery flat or side port are the following of battery flat, and selection of Motor is mounted on front-wheel or rear-wheel.The integral-rotation cross handle is by handle Horizontal, diplopore locker and horizontal Quick Release three parts composition, diplopore locker is welded on common folding grip, is provided on diplopore locker Symmetrical lockhole, wherein the lockhole of side is equipped with the also known as open fore shaft of Quick Release inlet and outlet connectors, and other side lockhole is also known as direction lockhole； The horizontal upper jack hole that is equipped with is corresponding with the lockhole on diplopore locker, traverse will be entered in diplopore locker, and enable and cross is exposed fastly Lockhole and jack hole are crossed, cross locking will be scheduled on diplopore locker, the handlebar that expansion is ridden is formed；It unclamps fast on open fore shaft It tears open, to be split into axis turning handle cross fastly on the lockhole of other side direction, produces and rotate integrally any one out of open fore shaft horizontal A angle beta, then use direction lockhole horizontal Quick Release lock rotation position.Described horizontal integrally rotated any angle β, if There is certain value range, i.e., is 55 °≤β≤65 ° the angle between horizontal and diplopore locker, wherein best value is β=60 °. The three section beam of chain type by girder, displacement beam, wear connect to lock and sliding sleeve lock four parts constitute, three section beam of chain type be actually will A piece girder is cut into two parts, and two side portions are still girder, and the intermediate part that increases is known as displacement beam, and the length of displacement beam is got over Greatly, then the wheelbase of front and back wheel becomes longer, and the stability of hand-held electric motor-car is better；It is equipped with tongue-and-groove at the both ends of displacement beam, respectively It is engaged with the tenon of girder, three section beam of chain type is linked by girder and displacement beam to lock using wearing to connect；It is locked when sliding sleeve and slides and cover When at lid displacement beam, three section beam of chain type is locked as expansion riding position by low sleeve Quick Release, when sliding sleeve locks sliding and leaves change Away from Liang Chushi, three section beam of chain type should be able to be folded into ∏ shape to wear to connect that lock is freely rotated for axis, and the width among ∏ shape is to become Length H away from beam, displacement beam H value is bigger, and girder folds shorter, and the folded size of car body is with regard to smaller.The battery Cabin is arranged on highest position, is welded on the rear end of girder, is equipped with overturning seat in the top of battery flat, no beam overturning saddle is just It is mounted on torsion shaft；Battery flat has two different structures, one is hypognathous type battery flat, i.e. battery flat are towards ground The side is opening, other 5 faces are all closed, the second is side port formula battery flat, i.e., be on one side towards vehicle rear direction Opening, other 5 faces are all closed；Altogether there are two cabin in hypognathous type battery flat, battery is placed in one of cabin, separately Controller is placed in one cabin, and there are two cabins arranged side by side for side port formula battery flat tool, wherein one cabin in front is controller cabin Controller is placed in room, and latter one cabin is battery cabin, places battery, larger due to being open, and spring is arranged in side The installation of lock locking battery；Battery flat no matter that frame mode, foldable rear fork is all located at the following of after-frame battery flat.It is described Foldable rear fork respectively corresponds two different foldable structures according to two kinds of different openings structures of after-frame battery flat, wherein lower mouth The corresponding reciprocal foldable rear fork of formula battery flat, side port formula battery flat is corresponding to rotate foldable rear fork.The reciprocal foldable rear fork is by limiting Lock tube and rear crotch are constituted, and spring cage knob is installed on rear crotch, open up limit lockhole, rear crotch and limit on limiting lock set Lock tube is good fit, and rear crotch can pump in limit lock tube, but cannot swing laterally, when rear crotch to Under when being stretched to springlock button and being hit by a bullet out from limit lockhole, i.e. the position ridden of locking expansion is pushed up when pressing spring cage knob Dynamic rear crotch as shrinks folding position when rear-wheel is prevented from continuing up promotion.The foldable rear fork of rotation is by rear fork Cabin, rear fork beam and rear fork shaft are constituted, and rear fork cabin being welded below in battery flat by three face coaming plates, rear fork beam is inserted in rear fork It is good fit in cabin, it is provided with axis hole on rear fork cabin, corresponding rotating hole is provided on rear fork beam, using rear fork shaft by rear fork Beam, which is worn, to be connect in rear fork cabin, and rear fork beam can rotate 160 ° in rear fork cabin；A blind hole is provided on rear fork beam, in blind hole Spring lock catch is installed, opens up two location holes up and down in a side in rear fork cabin, Spring lock catch is under when the expansion of rear fork beam Riding position is locked when the positioning hole pop-up in face, locks collapsed position when Spring lock catch is popped up from positioning hole above. There are two types of different types for the selection of Motor, one is hub motor, is mounted on the wheel hub of front-wheel or rear-wheel, battery and control Device processed is mounted in hypognathous type battery flat, the second is brushless motor, is mounted on front fork, and installs deceleration wheel disc on front-wheel, It is required that motor gear and deceleration wheel disc good engagement, controller and battery are separately mounted to the controller cabin of side port formula battery flat In battery flat room.The front-wheel takes 10 inches of wheels, and when rear-wheel takes 6 inches of wheels, the folded area size of vehicle is not more than 40* 26cm takes 10 inches of wheels in front-wheel, and when rear-wheel takes 8 inches of wheels, the folded area size of vehicle is not more than 43*27cm, preceding Wheel takes 10 inches of wheels, and when rear-wheel takes 10 inches of wheels, the folded area size of vehicle is not more than 47*29cm.

The present invention devises integral-rotation cross handle, eliminates the width of handle bar folding, devises three section beam of chain type, shortens The length that girder folds devises no beam overturning saddle and foldable rear fork, has compressed the height of vehicle body folding, especially uses again Brushless motor micro drives system and disc brake brake system, although complete vehicle weight is less than 4 kilograms, folding can put various satcheels into It is interior, but its expansion has the width of 28 inches of cart handlebars and disc brake brake system of most strength, reached both it is super it is light and small just It takes, the reliable technological break-through of riding safety again, there is the progress meaning obviously innovated.

Detailed description of the invention

With reference to the accompanying drawings and embodiments, the invention will be further described.

Fig. 1 is a kind of hand-held electric motor-car example structure schematic diagram disclosed by the invention.

Fig. 2 is another hand-held electric motor-car example structure schematic diagram disclosed by the invention.

Fig. 3, Fig. 4, Fig. 5 are three section girder construction schematic diagrames of chain type disclosed by the invention.

Fig. 1, Fig. 8 are reciprocal foldable rear fork configuration diagrams.

Fig. 2, Fig. 6 are the foldable back fork structure schematic diagrames of rotation.

Fig. 7 is to rotate integrally cross handle structural schematic diagram.

Fig. 6, Fig. 8, Fig. 9 are vehicle folding process schematic diagrames.

Figure 10 is riding position schematic diagram.

In figure, 7 be it is foot-operated, 6 be reciprocal telescopic rear fork, and 6B is rear crotch, and 6A is limit lock tube, and 5 be no beam overturning saddle, 4 be hypognathous type battery flat, and 1 is girder, and 2A is diplopore locker, and T is to rotate integrally cross handle, and 2B is cross, and 2 be commonly to fold , 3 be front fork, and M1 is hub motor, and 8 be front-wheel, and 9 be rear-wheel, and M2A is motor wheel, and M2 is brushless motor, and 7A is foot-driven lever, 2C is horizontal Quick Release, and NB1 is sliding sleeve Quick Release, and NB is sliding sleeve lock, and N is three section beam of chain type, and 5B is torsion shaft, and 5A is rollover stand, 1B It is side port formula battery flat, 1B1 is controller cabin.1B2 is battery cabin, and E is battery, and 1C is rear fork cabin, and EA is battery lock Button, 101 be rear fork shaft, and 10 be rear fork beam, and 11 be the foldable rear fork of rotation, and 3B is disc brake mounting board, and M2B is deceleration wheel disc, 7A1 It is foot-operated lock, 7B is telescopic rod, and 1.2 be to wear lockhole, and 1.1 be tenon, and 1.3 be tongue-and-groove, and 1A is displacement beam, and 1A1 is to wear to connect pair Lock, H are the length of displacement beam, and L is girder overall length, and 102 be Spring lock catch, and 1C1 is location hole, and 2B1 is jack hole, and 2A4 is weldering Interface, 2A1 are open fore shafts, and 2A3 is to turn to lockhole, and 2A2 is locked groove, and β is horizontal integrally rotated angle.

Embodiment one as shown in Figure 1 is the hand-held electric motor-car schematic diagram of the reciprocal foldable back fork structure of hypognathous type.Hand-held electric Motor-car overturns saddle 5, a hypognathous type battery flat 4 without beam with an integral-rotation cross handle T, three section beam N of a set of chain type, one And a secondary reciprocal telescopic rear fork 6, it rotates integrally cross handle T and is welded on common folding grip 2, three section beam N of chain type is locked using sliding sleeve NB controls folding position, and no beam overturning saddle 5 is mounted on the top of hypognathous type battery flat 4, and reciprocal telescopic rear fork 6 is mounted on lower mouth Formula battery flat 4 it is following, hub motor M1 is selectively mounted on front-wheel 8 or rear-wheel 9.Hypognathous type battery flat 4 towards ground that Opening on one side, other 5 faces be all it is closed, altogether there are two cabin in cabin, battery E is placed in one of cabin, separately Place controller in one cabin.

Embodiment two as shown in Figure 2 is the hand-held electric motor-car schematic diagram that side port formula rotates foldable back fork structure.The vehicle exists It rotates integrally cross handle T, three section beam N of chain type and is all the same as example 1 without beam overturning 5 various aspects structure of saddle, it is different It is that the foldable rear fork 11 of rotation is devised according to side port formula battery flat 1B.Side port formula battery flat 1B has there are two cabin arranged side by side, The cabin 1B1 of middle front one places controller, and latter one cabin 1B2 places battery E, larger due to being open, be in side The installation that Spring lock catch 102 locks battery E is set.

As shown in Figure 1, Figure 2, shown in Fig. 7, Fig. 8, Fig. 9, cross handle T is rotated integrally by horizontal 2B, diplopore locker 2A and horizontal fast Tear 2C three parts composition open, diplopore locker 2A is welded on common folding grip 2 by soldering opening 2A4, is provided on diplopore locker 2A Symmetrical lockhole, wherein the lockhole of side is equipped with the also known as open fore shaft 2A1 of Quick Release inlet and outlet connectors, and other side lockhole is also known as directional lock Hole 2A3；On horizontal 2B be equipped with jack hole 2B1 it is corresponding with lockhole, horizontal 2B will be put into diplopore locker 2A, order horizontal Quick Release 2C passes through the lockhole and jack hole on diplopore locker 2A, horizontal 2B will be locked on diplopore locker 2A, forms the vehicle that expansion is ridden ?.Unclamp the Quick Release 2C on open fore shaft 2A1, using the other side horizontal Quick Release 2C as the horizontal 2B of axis turning handle, horizontal 2B is locked from opening It is produced in mouth 2A1 and rotates integrally any one angle beta, then horizontal Quick Release 2C is locked on use direction lockhole 2A3 rotates Position.Horizontal integrally rotated any angle β, equipped with certain value range, i.e., the folder between horizontal 2B and diplopore locker 2A Angle is 55 °≤β≤65 °, wherein best value is β=60 °, to guarantee horizontal 2B that can obtain the longest distance of oblique line.From figure It can be seen that handlebar length can be greater than 400mm at angle β=60 °.This has been the width of 28 inches of bull wheel bicycle handle bars Degree.The wide association of handlebar traveling safety, handlebar have enough width, all the more stable safety of riding.If handlebar is very Narrow, a dozen slightly fast rollings of speed are easy for falling down and cause the accident.

As shown in Figure 2, Figure 3, Figure 4, three section beam N of chain type by girder 1, displacement beam 1A, wear connect to lock NB1 and sliding sleeve lock NB Four parts are constituted, and three section beam N of chain type is actually that a girder 1 is cut into two parts, and two side portions are still girder 1, and in Between increase part be known as displacement beam 1A, the length H of displacement beam 1A is bigger, then the wheelbase of front and back wheel becomes longer, hand-held electric motor-car Stability it is better.It is equipped with tongue-and-groove 1.3 at the both ends of displacement beam 1A, engages with the tenon 1.1 of girder 1, is connect pair using wearing respectively It locks 1A1 and girder 1 and displacement beam 1A is linked into three section beam N of chain type；When sliding sleeve lock NB is slided and covered at displacement beam 1A, press Three section beam N of chain type locking is expansion riding position by sliding sleeve Quick Release NB1, when sliding sleeve lock NB is slided and is left at displacement beam 1A, Three section beam N of chain type should be able to be folded into ∏ shape to wear to connect that lock 1A1 is freely rotated as axis, and the width among ∏ shape is displacement beam 1A Length H, length H value is bigger, girder fold it is shorter, the folded size of car body is with regard to smaller.Be possible in this way by Traditional folded box shortens girder length L half, becomes the one third for being shortened near to girder length L.As long as take displacement beam H= (1/3) L, then folded length is L '=(L-H)/2=(1/3) L.It can be seen that three section beam of chain type compared with General folding box, folds Efficiency greatly improves.Moreover, three section beam N of chain type locks NB as slide switch, without open foldable box complex and expensive using sliding sleeve Mold significantly reduces weight and reduces costs.

As shown in Fig. 1, Fig. 8, reciprocal telescopic rear fork 6 is made of limit lock tube 6A and rear crotch 6B, is pacified on rear crotch 6B Shock mount cage knob opens up limit lockhole on limit lock tube 6A, and rear crotch 6B and limit lock tube 6A are good fit, make rear crotch 6B It can pump, but cannot swing laterally in limit lock tube 6A, when rear crotch 6B is stretched to downwards springlock When button is hit by a bullet out from limit lockhole, that is, it is locked in the position that expansion is ridden, pushes up rear crotch 6B when pressing spring cage knob, directly When being prevented from continuing up promotion to rear-wheel 9, folding position is as shunk.

As shown in Fig. 2, Fig. 6, rotates foldable rear fork 11 and be made of rear fork cabin 1C, rear fork beam 10 and rear fork shaft 101, rear fork Cabin 1C by three face coaming plates side port formula battery flat 1B below being welded, rear fork beam 10 be inserted in it is good fit in the 1C of rear fork cabin, It is provided with axis hole on the 1C of rear fork cabin, corresponding rotating hole is provided on rear fork beam 10, is worn rear fork beam 10 using rear fork shaft 101 It connects in the 1C of rear fork cabin, it is desirable that rear fork beam 10 can rotate 160 ° in the 1C of rear fork cabin；A blind hole is provided on rear fork beam 10, Spring lock catch 102 is installed in blind hole, a side of 1C opens up two location hole 1C1 up and down in rear fork cabin, when rear fork beam 10 Riding position is locked when Spring lock catch 102 is popped up out of following location hole 1C1 when expansion, when Spring lock catch 102 is from above Collapsed position is locked when pop-up in location hole 1C1.

As shown in Figure 1, Figure 2, shown in Fig. 6, Figure 10, selection of Motor is there are two types of different types, one is hub motor M1, such as the One embodiment is mounted on front-wheel 8 or rear-wheel 9, and battery and controller are mounted in hypognathous type battery compartment 4；The second is brushless horse It is mounted on front fork 3 up to M2, such as Fig. 2 second embodiment, and deceleration wheel disc M2B is installed on front-wheel 8, it is desirable that motor gear M2A With deceleration wheel disc M2B good engagement, battery E and controller are then separately mounted in controller cabin 1B1 and battery flat 1B2.It is brushless Motor M2 chooses model plane micro high-power brushless motor, value range: diameter 50-65mm, KV value 100-200, power 150-250W, 370-450g of weight are the micro high-power brushless motors of small in volume.In addition using Gao Rong simultaneously Lithium dynamical battery E is measured, so that the total weight that battery and motor add up only has 1 kilogram, the miniature power drive system of this set makes portable The total weight of electric vehicle relies on less than 4 kilograms and rotates integrally cross handle T, three section beam N of chain type, reciprocal foldable rear fork 4 or rotation The ingenious cooperation of foldable rear fork 11, can be light small and exquisite with folding in the handbag less than 26*40cm, easy to carry.It is less than The area size of 26*40cm is less than the size of the barcode scanning cabinet of major supermarket, it is seen then that hand-held electric motor-car is carried away It is accessible all over the ends of the earth.

As shown in Fig. 6, Fig. 8, Fig. 9, it is shown that the folding process of hand-held electric motor-car.10 inches of wheels, rear-wheel 9 are taken in front-wheel 8 When taking 6 inches of wheels, the folded area size of vehicle is not more than 40*26cm, can put into various satcheels and carry.In addition, Front-wheel 8 takes 10 inches of wheels, and when rear-wheel 9 takes 8 inches of wheels, the folded area size of vehicle is not more than 43*27cm.It is taken in front-wheel 8 10 inches of wheels, when rear-wheel 9 takes 10 inches of wheels, the folded area size of vehicle is maximum, but is also not more than 47*29cm, still may be used Trip is carried to put into both shoulders back.

As shown in Figure 10,1 meter 9 of height in proportion of bicyclist shown in dotted line, the posture being sitting on hand-held electric motor-car and people The posture that is sitting in front of computer be duplicate unfold and comfortably.Indicated in figure the person of riding center of gravity and front and back wheel axle center it Between the angle of cut be respectively 40.1 ° and 17.2 °, it is shown that hand-held electric motor-car have 17.2 ° of climbable gradient and 40.1 ° of brake Before tumble buffer index.Though especially hand-held electric motor-car is small, there is the whole handlebar of 400mm wide, this width is 28 inches of bull wheels The width of diameter bicycle handle bar significantly enhances the stability quickly ridden and turned.It can be said that the structure of hand-held electric motor-car Rationally, securely and reliably.

Claims (7)

1. a kind of hand-held electric motor-car, it is characterised in that: the vehicle has an integral-rotation cross handle (T), three section beam of a set of chain type (N), one overturns saddle (5) without beam, a hypognathous type battery flat (4) or side port formula battery flat (1B) and one it is secondary it is foldable after Fork rotates integrally cross handle (T) and is welded on common folding grip (2), and three section beam (N) of chain type controls folding position using sliding sleeve lock (NB) It sets, no beam overturning saddle (5) is mounted on the top of under shed battery flat (4) or side opening battery flat (1B), foldable rear fork installation In the following of hypognathous type battery flat (4) or side port formula battery flat (1B), selection of Motor is mounted on front-wheel (8) or rear-wheel (9).

2. hand-held electric motor-car as described in claim 1, it is characterised in that: rotate integrally cross handle (T) by cross (2B), Dual-hole lock It presss from both sides (2A) and horizontal Quick Release (2C) three parts is constituted, diplopore locker (2A) is welded on common folding grip (2), in diplopore locker Symmetrical lockhole is provided on (2A), wherein the lockhole of side is equipped with Quick Release inlet and outlet connectors and also known as opens fore shaft (2A1), another side chain Hole is also known as direction lockhole (2A3)；It is corresponding with the lockhole on diplopore locker (2A) equipped with jack hole (2B1) on horizontal (2B), Horizontal (2B) will be put into diplopore locker (2A), and enable and horizontal Quick Release (2C) is passed through lockhole and jack hole, horizontal (2B) will be locked in On diplopore locker (2A), the handlebar that expansion is ridden is formed；The Quick Release (2C) on open fore shaft (2A1) is unclamped, with another side direction Quick Release (2C) on lockhole (2A3) is that axis turning handle is horizontal (2B), and horizontal (2B) is produced and rotated integrally out of open fore shaft (2A1) Any one angle beta, then use direction lockhole (2A3) horizontal Quick Release (2C) lock rotation position.

3. hand-held electric motor-car as claimed in claim 2, it is characterised in that: cross (2B) integrally rotated any angle β, be equipped with Certain value range is 55 °≤β≤65 ° the angle between horizontal (2B) and diplopore locker (2A), wherein best value is β=60°。

4. hand-held electric motor-car as described in claim 1, it is characterised in that: three section beam (N) of chain type is by girder (1), displacement beam (1A), it wears to connect and four part (NB) composition is locked to lock (1A1) and sliding sleeve, three section beam (N) of chain type is actually by a girder (1) Two parts are cut into, two side portions are still girder (1), and the intermediate part that increases is known as displacement beam (1A), the length of displacement beam (1A) Degree is bigger, then the wheelbase of front and back wheel becomes longer, and the stability of hand-held electric motor-car is better；Tenon is equipped at the both ends of displacement beam (1A) Slot (1.3) is engaged with the tenon (1.1) of girder (1) respectively, is connect to lock (1A1) using wearing by girder (1) and displacement beam (1A) chain It is connected into three section beam (N) of chain type；When sliding sleeve lock (NB) slides and when covering at displacement beam (1A), by low sleeve Quick Release (NB1) by chain Three section beam (N) of formula is locked as expansion riding position, when sliding sleeve lock (NB) is slided and is left at displacement beam (1A), three section beam of chain type (N) it should be able to be folded into ∏ shape to wear to connect that lock (1A1) is freely rotated for axis, the width among ∏ shape is the length of displacement beam (1A) H is spent, displacement beam H value is bigger, and girder (1) folds shorter, and the folded size of car body is with regard to smaller.

5. hand-held electric motor-car as described in claim 1, it is characterised in that: battery flat is arranged on highest position, is welded on The rear end of girder (1) is equipped with overturning seat (5A) in the top of battery flat, and no beam overturning saddle (5) is just mounted on torsion shaft (5B) On；Battery flat has two different structures, one is hypognathous type battery flat (4), the i.e. side on battery flat towards ground are Opening, it the second is side port formula battery flat (1B), i.e., towards vehicle rear direction is opening on one side that other 5 faces, which are all closed, , other 5 faces are all closed；Altogether there are two cabin in hypognathous type battery flat (4) cabin, battery is placed in one of cabin (E), controller is placed in another cabin, and there are two cabins arranged side by side for side port formula battery flat (1B) tool, wherein one cabin in front For controller cabin (1B1), controller is placed, latter one cabin is battery cabin (1B2), is placed battery (E), due to opening Mouth is larger, the installation that Spring lock catch (102) lock battery (E) is arranged in side；Battery flat no matter go back by hypognathous type battery flat (4) It is side port formula battery flat (1B) which kind of frame mode, foldable rear fork is all located at the following of battery flat.

6. hand-held electric motor-car as described in claim 1, it is characterised in that: foldable rear fork is according to two kinds of different openings of battery flat Structure respectively corresponds two different foldable structures, wherein the corresponding reciprocal foldable rear fork (6) of hypognathous type battery flat (4), side port formula Battery flat (1B) is corresponding to rotate foldable rear fork (11)；Wherein, reciprocal foldable rear fork (6) is by limit lock tube (6A) and rear crotch (6B) It constitutes, rear crotch (6) can pump in limit lock tube (6A), but cannot swing laterally, after rotation is foldable Fork (11) is made of rear fork cabin (1C), rear fork beam (10) and rear fork shaft (101), and rear fork cabin (1C) is by three face coaming plates in side opening Battery flat (1B) is welded below, and rear fork beam (10) is inserted in good fit in rear fork cabin (1C), it is desirable that can rotate 160 °.

7. the hand-held electric motor-car as described in claim 1 or 4, it is characterised in that: front-wheel takes 10 inches of wheels, and rear-wheel takes 6 inches of wheels When, the folded area size of vehicle is not more than 40*26cm, 10 inches of wheels are taken in front-wheel, when rear-wheel takes 8 inches of wheels, and vehicle folding The area size of poststack is not more than 43*27cm, takes 10 inches of wheels, when rear-wheel takes 10 inches of wheels, the folded face of vehicle in front-wheel Product size is not more than 47*29cm.