CN208855802U - Power fold mechanism and application have the power assist vehicle of the power fold mechanism - Google Patents

Abstract

The utility model discloses a kind of power fold mechanisms, it is connected between the first component of fan-folded and second component, it is characterized by comprising folding motor, by folding motor-driven transmission shaft and two hinge components, two hinge components are separately positioned on the both ends of transmission shaft, each hinge component includes first axle component, the second hinge component with the rotation connection of first axle component, the first axle component and folding motor are connected and fixed with the first component, and the second hinge component is connected and fixed with second component.Also disclose the power assist vehicle that a kind of application has the power fold mechanism.

Description

Power fold mechanism and application have the power assist vehicle of the power fold mechanism

Technical field

The utility model relates to the vehicles, in particular for the power assist vehicle ridden instead of walk, and can be used for the electricity of the power assist vehicle Dynamic fold mechanism.

Background technique

With urban transportation is more and more crowded and vehicle exhaust discharge quantity it is increasing, people increasingly tend to Use the light and environmentally friendly vehicles.Simultaneously as the improvement of people's living standards, work and life tempo increase, especially It is the fast pace life in a line city, in order to adapt to allegro life, people will use power assist vehicle as walking-replacing tool, power-assist Many advantages, such as vehicle is easy to carry, environmentally friendly due to its.

That there are overall structures is complex for common three-wheel power assist vehicle, most not foldable, and occupied space is big when storage, It is not readily portable.For this purpose, there is now many folding power assist vehicles.Such as application No. is 201721714453.6 Chinese patents A kind of disclosed electric motor bicycle with folding is tricycle structure, and rear wheel support is set to body understructure rear end, and seat support is hinged on vehicle body Chassis upper back；Handle brackets are telescopic rod, and handlebar is hinged on telescopic rod upper end；The articulated section of body understructure is hinged on handle Bracket lower part；Body understructure is divided into head and the tail and intersects hinged left chassis and right chassis；Seat support is telescopic frame, Inside middle portion is equipped with flap(up) seat and stow-away arm rest；For another example one kind disclosed in the Chinese patent application No. is 201420290342.7 Folding electric bicycle, by front frame, Rear frame, headstock, supporting mechanism, handrail, the chair back, seat, chair back handle, guiding The composition such as wheel, rear-wheel, battery, under the upward lifting effect of handle, front and back pedal supports under pin axis rotary folding, headstock Pipe is pivoted, and support tube is taken in lower support tube on headstock, and headstock and upper support tube are rotated around pin axis, the chair back external force to It is rotated around the shaft under lower effect, supporting mechanism is rotated around pin axis relative to back pedal, the spaced winding pin of seat and support construction Axis rotation；For another example six folding of one kind, one mini domestic type electric vehicle disclosed in the Chinese patent application No. is 201620364217.5, Including the mobile mobile control unit of car body, control car body and control the braking control unit of vehicle body braking, car body include chassis, Main backstop, back rest, seat frame, former riding grillage, front support turning member and for car body fold after prevent car body from surprisingly opening up The lock buckling part opened.

Above-mentioned folding power assist vehicle, when need store fold when, it is necessary to manually operate associated components and incite somebody to action Vehicle body folds, and not only step is more, operates and is more troublesome, and user is needed to have preferable harmony, is otherwise folding Or it is easy to cause folding means movement not in place because of misoperation during expansion and then cannot achieve folding or expansion.

Utility model content

First technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing one Convenient, the quick power fold mechanism of kind.

Second technical problem to be solved in the utility model, which is to provide a kind of application, above-mentioned power fold mechanism Power assist vehicle.

The utility model solves technical solution used by above-mentioned first technical problem are as follows: a kind of power fold mechanism, It is connected between the first component of fan-folded and second component, it is characterised in that: including folding motor, by folding motor driven Transmission shaft and two hinge components, two hinge components are separately positioned on the both ends of transmission shaft, and each hinge component includes First axle component, the second hinge component with the rotation connection of first axle component, the first axle component and folding motor It is connected and fixed with the first component, the second hinge component is connected and fixed with second component.

It further include being connected to first axle component and second hinge component to drive the rotation of second hinge component convenient for motor Between hinge transmission mechanism, the transmission shaft extends into first axle component, and the hinge transmission mechanism includes by transmission shaft The rotation axis of rotation is driven, the rotation axis is parallel with transmission shaft, and the rotation axis connect solid with one end of second hinge component Fixed, the other end of the second hinge component is connected and fixed with second component.

To drive rotation axis rotation convenient for transmission shaft, the hinge transmission mechanism further includes the primary being set on transmission shaft Gear and it is arranged final-stage gear on the rotating shaft, directly engagement or indirectly between the primary pinion and final-stage gear It is engaged by least one gear.

For convenient for driving transmission shaft rotation after decelerating through motor, the folding motor has output shaft, the output shaft and biography Moving axis is arranged in parallel, and is provided with gear drive between the output shaft and transmission shaft.

The utility model solves technical solution used by above-mentioned second technical problem are as follows: a kind of application has as described above Power fold mechanism power assist vehicle, including preceding crossbeam and rear crossbeam, the first component is rear crossbeam, and the second component is Preceding crossbeam, two first axle components are fastened on the left and right sides of rear crossbeam bottom, and two the second connecting elements connections are solid The left and right sides of crossbeam bottom before being scheduled on.

It preferably, further include front truck handle and seat, the front truck is the front end that preceding crossbeam is arranged in, the seat setting In the top of rear crossbeam.

For convenient for driving front truck handle and seat to fold during preceding crossbeam and the folding of rear crossbeam, further include front rod and Back link, one end of the front rod and front truck are rotatablely connected one end of upper connecting shaft, and the other end of the front rod is then It is rotatablely connected with the front side of rear crossbeam bottom；The rear side of one end of the back link and preceding crossbeam bottom is rotatablely connected, after described The other end of connecting rod is then connect with seat rotation.

Preferably, the seat includes the chair back, seat station and folding rod, and the folding rod is in curved rod-shaped, the folding One end of folded bar is connected to the chair back, the other end is then connect with back link.

Preferably, to make the process folded steady, the front rod, back link and folding rod are respectively provided with two, and two Pass through synchronous axis connection between a folding rod.

To loosen after avoiding power assist vehicle from folding, the front truck is being respectively arranged with connecting rod, Mei Gelian close to the two sides of bottom One end of bar, being fixedly connected, is connected with connecting shaft with front truck between the other end of two connecting rods, the bottom of the rear crossbeam is set Be equipped with the foldable locking device that connecting shaft can be locked after power assist vehicle folding.

Compared with the prior art, the advantages of the utility model are: passing through two be driven by motor of setting rotation connection A hinge member, it is convenient to drive two component fan-foldeds；By the way that link mechanism is arranged, can be answered in power fold mechanism Power assist vehicle is used, drives front truck the folding with seat using the folding of preceding crossbeam and rear crossbeam.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the power assist vehicle of the utility model embodiment；

Fig. 2 is the structural schematic diagram (seeing from lower to upper) of the power assist vehicle of the utility model embodiment；

Fig. 3 is the schematic diagram of the power fold mechanism of the utility model embodiment；

Fig. 4 is the decomposition texture schematic diagram of the electric foldable structure of the utility model embodiment；

Fig. 5 is that the power assist vehicle of Fig. 2 hides the schematic diagram of bottom cover；

Fig. 6 is the schematic diagram of the electronic Shou Lun mechanism of the power assist vehicle of the utility model embodiment；

Fig. 7 is the decomposition diagram of the electronic Shou Lun mechanism of the power assist vehicle of the utility model embodiment；

Fig. 8 is the schematic diagram of the foldable locking device of the power assist vehicle of the utility model embodiment；

Fig. 9 is the decomposition texture schematic diagram of the foldable locking device of Fig. 8；

Figure 10 is the further decomposition texture schematic diagram (lock state) of the foldable locking device of Fig. 9；

Figure 11 is the foldable locking device of Figure 10 decomposition texture schematic diagram in the open state；

Figure 12 is the folded state schematic diagram of the power assist vehicle of the utility model embodiment.

Specific embodiment

The utility model is described in further detail below in conjunction with figure embodiment.

Referring to Fig. 1 and Fig. 2, a kind of power assist vehicle, including front truck is 1, preceding crossbeam 2, rear crossbeam 3, seat 4 and wheel, wherein The top of rear crossbeam 3 is arranged in the front end that preceding crossbeam 2 is arranged in 1 in front truck, seat 4, can between preceding crossbeam 2 and rear crossbeam 3 It is folded against, wheel include the driving wheel 51 of preceding 2 bottom end of crossbeam is set and be arranged in two of 3 rear side of rear crossbeam it is driven Wheel 52.

Front truck is respectively arranged with connecting rod 111 close to the two sides of bottom 1, and one end of each connecting rod 111 and front truck are fixed 1 It connects, is connected with connecting shaft 112 between the other end of two connecting rods 111.

Wherein, it is provided with power fold mechanism between the rear side of preceding crossbeam 2 and the front side of rear crossbeam 3, so as to preceding 2 He of crossbeam Crossbeam 3 can relatively fan-shaped folding or unlatching afterwards.Referring to fig. 2~Fig. 4, power fold mechanism include folding motor 61, transmission Axis 62 and two hinge components 63, wherein fold the bottom that rear crossbeam 3 is arranged in motor 61, there is output shaft 611, output Axis 611 and transmission shaft 62 are arranged in parallel, and are provided with gear drive 64 between two axis, to make to transport when folding motor 61 When turning, output shaft 611 drives transmission shaft 62 to rotate after can slowing down by gear drive 64.In the present embodiment, gear Transmission mechanism 64 include setting be set on output shaft 611 first transmission gear 641 and be set on transmission shaft 62 second It is provided with gear box cover except transmission gear 642, the first transmission gear 641 and the second transmission gear 642, gear box cover includes phase The first gear case lid 6431 and second gear case lid 6432 mutually fastened.

Two hinge components 63 are separately positioned on the both ends of transmission shaft 62, and each hinge component 63 includes first axle component 631, second hinge component 632 and the hinge being connected between first axle component 631 and second hinge component 632 transmission Mechanism 633, wherein first axle component 631 include first axle case lid 6311 and second hinge case lid 6312, the two fasten and At, between space in be arranged hinge transmission mechanism 633.Hinge transmission mechanism 633 includes the primary being set on transmission shaft 62 Gear 6331, the rotation axis 6332 being connect with second hinge component 632 and the final-stage gear being set in rotation axis 6332 6333, rotation axis 6332 is parallel with transmission shaft 62, and multiple teeth can be arranged between primary pinion 6331 and final-stage gear 6333 again Gear can also be no longer arranged in wheel, as long as the rotation of transmission shaft 62 is transmitted to rotation axis 6332.The one of rotation axis 6332 End is extended except first axle component 631, and is penetrated within second hinge component 632.Second hinge component 632 is wherein Connecting hole 6321 is offered on one end, rotation axis 6332 is penetrated into the connecting hole 6321 and connect with second hinge component 632 It is fixed.For convenient for driving second hinge component 632 to rotate when rotation axis 6332 rotates, rotation axis 6332 and connecting hole 6321 are equal For hexagon.

It is connected and fixed at left and right sides of two first axle components 631 and rear 3 bottom of crossbeam, second hinge component 632 is remote It is connected and fixed at left and right sides of one end and preceding 2 bottom of crossbeam from connecting hole 6321.As a result, when folding the operating of motor 61, lead to Crossing output shaft 611 drives transmission shaft 62 to rotate, and drives second hinge component 632 opposite from there through hinge transmission mechanism 633 First axle component 631 rotates, so that the crossbeam 3 after of preceding crossbeam 2 rotates, can be folded.

Above-mentioned power fold mechanism can be used for the Push And Release and other needs of door or window that other sectors are opened The electric appliance or equipment of folding, as long as by first in first axle component 631 and the first component for needing to fold, second component Part is connected and fixed, and second hinge component 632 and the first component folded, the second component in second component is needed to be connected and fixed i.e. It can.

Referring to Fig. 5~Fig. 7, to shrink two rear-wheels 52 in wheel automatically when power assist vehicle folds, power-assist It is stretched automatically when car exhibition is opened, power assist vehicle further includes electronic Shou Lun mechanism thus.In the present embodiment, electronic Shou Lun mechanism includes receiving Turbin generator 71, bevel gear component 72 and wheel drive component 73.Bevel gear component 72 includes being located in the middle the first bevel gear 721 With the second bevel gear 722 for being located at 721 two sides of the first bevel gear, the first bevel gear 721 connects with the output shaft 711 for receiving turbin generator 71 It connects, the second bevel gear 722 is engaged with the first bevel gear 721.Bevel gear component 72 further includes umbrella gear box 723, umbrella gear box 723 include the first bevel gear case lid 7231 and the second bevel gear case lid 7232 mutually fastened, and the setting of above three bevel gear exists In umbrella gear box 723.

When receiving the operating of turbin generator 71, output shaft 711 drives the rotation of the first bevel gear 721, thus drives and the first umbrella The second bevel gear 722 rotation that gear 721 engages, and certain angle is formed between the rotation axis of two the second bevel gears 722 It spends (acute angle).

Wheel drive component 73 has two groups, and every group of wheel drive component 73 includes the first screw rod 731,732 and of pipe sleeve Connecting rod 733, pipe sleeve 732 pass through fixed bracket 7321 and are connected and fixed with rear crossbeam 3.One end of first screw rod 731 and the second umbrella Gear 722 connects, and the other end penetrates into casing 732.One end of connecting rod 733 penetrates into casing 732 and end is located at First screw rod, 731 periphery, can be connected between the two by silk braid, and the other end of connecting rod 733 is then connect with rear-wheel 52.When When one screw rod 731 rotates, silk braid can drive connecting rod 733 to move linearly.

Two wheel drive components 73 are integrally formed V-shaped as a result, connecting rod 733 can facing sleeve 732 in casing 732 Extending direction on stretch, thus drive rear-wheel 52 withdraw or expansion.Crossbeam 3 has the longitudinal axis X 1 in front and rear direction afterwards, with receipts Turbin generator 71 is coaxial and left and right direction on horizontal axis X2, it is coaxial with the shaft of rear-wheel 52.After electronic Shou Lun mechanism and two The opposite longitudinal axis X 1 of wheel 52 is symmetrical, and horizontal axis X2 is vertical with longitudinal axis X 1.Wheel drive component 73 tilts in the horizontal plane with respect to longitudinal axis X 1. As a result, during rear-wheel 52 is withdrawn, the distance between two rear-wheels 52 and longitudinal axis X 1, two rear-wheels 52 are on horizontal axis X2 Relative distance reduces simultaneously.During rear-wheel 52 is unfolded, the distance between two rear-wheels 52 and longitudinal axis X 1, two rear-wheels 52 Relative distance on horizontal axis X2 expands simultaneously.

Power assist vehicle bottom, receipts turbin generator 71 and 72 closed downwards of bevel gear component have bottom cover 74.

Power assist vehicle further includes front rod 81 and back link 82, wherein and there are two the tools of front rod 81, and the one of each front rod 81 End and front truck are rotatablely connected one end of the connecting shaft 112 on 1, the other end of each front rod 81 then with rear 3 bottom of crossbeam Front side rotation connection.There are two the tools of back link 82, and the rear side of one end of each back link 82 and preceding 2 bottom of crossbeam is rotatablely connected, The other end of each back link 82 is then rotatablely connected with seat 4.Seat 4 includes the chair back 41, seat station 42 and folding rod 43, is folded For bar 43 in curved rod-shaped, curved angle can be 90 ° or so, and curved position it is corresponding after crossbeam 3 rear end.Folding There are two the folded tools of bar 43, and one end is connected to the chair back 41 respectively, and the other end is then rotatablely connected with corresponding back link 82.Two foldings It is connected between bar 43 by synchronizing shaft 44.

When needing folded moped, start the folding motor 61 of power fold mechanism, the first axle of hinge component 63 Component 631 and second hinge component 632 relatively rotate, so that downwardly rear crossbeam 3 rotates preceding crossbeam 2, it is big before pushing Beam 2 and rear crossbeam 3 jack up upwards at link position；In the rotation process of preceding crossbeam 2, front rod 81 is driven to act, thus Pull the folding rod 43 of seat 4 mobile towards preceding crossbeam 2, so that seat 4 be driven to rotate down；Meanwhile back link 82 is by rear big 3 drive of beam movement, pulls front truck to rotate down 1；During above-mentioned preceding crossbeam 2 and rear crossbeam 3 rotate, electronic receipts turbine The receipts turbin generator 71 of structure starts, and rear-wheel 52 is shunk along the extending direction of casing 732, until connecting rod 733 takes in casing 732 Interior, rear-wheel 52 is close to the end of casing 732.Power assist vehicle after the completion of folding is referring to Figure 12.

It is loosened to avoid folded power assist vehicle stress, is additionally provided with foldable locking device, front truck is the connecting shaft on 1 112 cooperate with foldable locking device.After the completion of power assist vehicle folding, connecting shaft 112 can be locked by foldable locking device.

Referring to Fig. 8~Figure 10, the electricity that foldable locking device is similar to automobile tail gate inhales lock, including executing agency and locking machine Structure, executing agency include lock out motor 91, the second screw rod 92 and silk braid 93, further include cabinet 94, above-mentioned second screw rod 92 and silk Set 93 is arranged in cabinet 94, and silk braid 93 extends outside cabinet 94.Lock out motor 91 drives the rotation of the second screw rod 92, thus Silk braid 93 may make to move linearly along the extending direction of the second screw rod 92.Executing agency further includes being arranged on cabinet 94 simultaneously The third microswitch 932 in cabinet 94 is extended into, third microswitch 932 is used to cooperate with silk braid 93.

Locking mechanism can use the prior art, as included lock frame 95, the support frame 96 in lock frame 95, stop component 97, bolt component 98 and lock box 99.

Wherein, lock frame 95 includes main lock frame 951 and secondary lock frame 952, and the two works in coordination and is formed with cavity therebetween, props up Support 96, stop component 97 and bolt component 98 are arranged in the cavity between main lock frame 951 and secondary lock frame 952.

Compartment of terrain offers perforative first positioning shaft hole 961 and the second positioning shaft hole 962 on support frame 96.

Stop component 97 includes block 971, is provided with the first locating shaft 972 and the first driving lever 973 on block 971.At this In embodiment, block 971 is located at support frame 96 towards the side of main lock frame 951, i.e. block 971 is located at support frame 96 and main lock frame Between 951 and far from secondary lock frame 952.One end of first locating shaft 972 and the rotation connection of main lock frame 951, the other end is from block 971 pass through after, again from the first positioning shaft hole 961 on support frame 96, so that block 971 is rotatably arranged at lock frame In 95.First driving lever 973 extends lock frame 95 (pair lock frame 952) outside, thus can outside locking mechanism to the first driving lever 973 into Row operation.Alternatively, can also on pair lock frame 952 aperture to contact the first driving lever 973.It can be outside lock frame 95 as long as making Operate the first driving lever 973.

Bolt component 98 includes lock tongue 981, and lock tongue 981 and block 971 are adjacent to arranged for interval.It is provided on lock tongue 981 Second locating shaft 982 and the second driving lever 983.In the present embodiment, lock tongue 981 is located at support frame 96 towards the one of main lock frame 951 Side, i.e. lock tongue 981 are located between support frame 96 and main lock frame 951 and far from secondary lock framves 952.One end of second locating shaft 982 with Main lock frame 951 is rotatablely connected, and the other end passes through after, again from the first positioning shaft hole 961 on support frame 96 from lock tongue 981, So that lock tongue 981 is rotatably arranged in lock frame 95.

First locating shaft 972 and the second locating shaft 982 can accordingly, be adjacently positioned, the first driving lever 973 and the second driving lever 983 in correspondence with each other, respectively close to two opposite sides of main lock frame 951.

First locating shaft, 972 periphery is provided with the first torsional spring (not shown), and one end of the first torsional spring is arranged in main lock frame 951 On, the first torsional spring makes block 971 remain the reset trend rotated towards 981 direction of lock tongue.Second locating shaft, 982 periphery It is provided with the second torsional spring (not shown), one end of the second torsional spring is arranged on main lock frame 951, and the second torsional spring protects lock tongue 981 Hold the reset trend for opening lock.The starting force that stop component 97 and bolt component 98 can interact always as a result,.

Bolt component 98 further includes the first salient point 984 and the second salient point 985 being arranged on lock tongue 981, on support frame 96 It is provided with the first microswitch 963 and the second microswitch 964, the first salient point 984 can cooperate with the first microswitch 963, Second salient point 985 can cooperate with the second microswitch 964.First microswitch 963 and the second microswitch 964 with locking Motor 91 is electrically connected, and control signal thus can be exported to lock out motor 91.

Close to the side of lock tongue 981 on block 971, the first butting section 9711, lock tongue are formed with towards the protrusion of lock tongue 981 Close to the side of block 971 on 981, it is formed with the second butting section 9811, third butting section 9812 towards the protrusion of block 971, the Two butting sections 9811 and third butting section 9812 are used to cooperate with the first butting section 9711.

One end of lock frame 95 is arranged in above-mentioned executing agency, offers the be inserted into for connecting shaft 112 on main lock frame 951 One fore shaft 9511, the first fore shaft 9511 are recessed inwardly far from the other end end of executing agency from main lock frame 951 and are formed.Lock tongue 981 sides close to block 971, one end far from the second driving lever 983 are formed with the second lock to far from 971 direction of block recess Mouth 9813.Above-mentioned two fore shaft is located at except lock box 99.

In above-described embodiment, silk braid 93 is directly acted on the first driving lever 973 and the second driving lever 983.It alternatively, can also be with Silk braid 93 is arranged in cabinet 94, and is provided with shifting shaft 931 on silk braid 93, is extended outside cabinet 94, towards locking mechanism.

The working principle of above-mentioned foldable locking device are as follows:

1, shut process: after power assist vehicle is completed to fold, the connecting shaft 112 on 1 is hit the second fore shaft 9813 by front truck, is made It obtains lock tongue 981 to rotate counterclockwise, the first salient point 984 on lock tongue 981 is compressed to the first microswitch 963, the first microswitch 963 closures, output signals to lock out motor 91, make its starting, and thus lock out motor 91 transmits output by the second screw rod 92 To silk braid 93, so that silk braid 93 mobile (or leaning on shifting shaft 931) pushes the second driving lever 983 to stir the rotation of lock tongue 981 (simultaneously Block 971 can be driven to rotate), the second fore shaft 9813 holds connecting shaft 112, so that preceding crossbeam 2 and rear crossbeam 3 tense, first is supported Third butting section 9812 in relying part 9711 and lock tongue 981 is against so that lock tongue 981 cannot rotate guarantor towards opening direction Hold current state；Finally, by full lock signal control executing agency's antiport, silk braid 93 to far from bolt component 98 second The direction of driving lever 983 moves, until stopping (silk braid 93 compresses third microswitch 932) to origin position, shuts movement knot Beam (lock state for being changed into Figure 10 from the opening state of Figure 11).

2, unlocking process:

Firstly, lock out motor 91 starts running, silk braid by the control system of power assist vehicle to 91 input signal of lock out motor 93 (or leaning on shifting shaft 931) are mobile to move along a straight line to 973 direction of the first driving lever of stop component 97, until touching stop component 97 the first driving lever 973；Hereafter, silk braid 93 continues to move, and will stir block 971 to lock opening direction rotation, so that block 971 On the first butting section 9711 separated with the second butting section 9811 on lock tongue 981 so that lock tongue 981 rotate, lock at this time The second salient point 985 on tongue 981 no longer compresses the second microswitch 965, folds motor 61 and operates, so that power assist vehicle is unfolded, by This, lock tongue 981 is rotated to opening direction, and the first salient point 984 on lock tongue 981 no longer compresses the first microswitch 963, Quan Suoxin It number releases, the first butting section 9711 is with the second butting section 9811 on lock tongue 981 against so that lock tongue 981 cannot direction Locking direction rotation keeps current state；Executing agency's antiport, silk braid 93 are controlled finally by the unlocking signal of power assist vehicle It is moved to the direction far from the first driving lever 973 on block 971, until origin position stops, (silk braid 93 compresses third fine motion and opens It closes 932), unlocking action terminates and (is changed into the opening state of Figure 11 from the lock state of Figure 10).

Claims (10)

1. a kind of power fold mechanism, is connected between the first component of fan-folded and second component, it is characterised in that: including Fold motor (61), the transmission shaft (62) by folding motor (61) driving and two hinge components (63), two hinge components (63) both ends of transmission shaft (62) are separately positioned on, each hinge component (63) includes first axle component (631) and the first hinge The second hinge component (632) of chain component (631) rotation connection, the first axle component (631) and folding motor (61) are equal It is connected and fixed with the first component, the second hinge component (632) is connected and fixed with second component.

2. power fold mechanism according to claim 1, it is characterised in that: each hinge component (63) further includes being connected to Hinge transmission mechanism (633) between first axle component (631) and second hinge component (632), the transmission shaft (62) are prolonged It protrudes into first axle component (631), the hinge transmission mechanism (633) includes the rotation axis that rotation is driven by transmission shaft (62) (6332), the rotation axis (6332) is parallel with transmission shaft (62), the rotation axis (6332) and second hinge component (632) One end is connected and fixed, and the other end of the second hinge component (632) is connected and fixed with second component.

3. power fold mechanism according to claim 2, it is characterised in that: the hinge transmission mechanism (633) further includes The primary pinion (6331) being set on transmission shaft (62) and the final-stage gear (6333) being set on rotation axis (6332), It directly engages between the primary pinion (6331) and final-stage gear (6333) or is engaged indirectly by least one gear.

4. power fold mechanism according to claim 1, it is characterised in that: the folding motor (61) has output shaft (611), the output shaft (611) and transmission shaft (62) are arranged in parallel, and are arranged between the output shaft (611) and transmission shaft (62) There are gear drive (64).

5. a kind of application has the power assist vehicle of power fold mechanism as described in any one of claims 1 to 4, including preceding crossbeam (2) and rear crossbeam (3), the first component are rear crossbeam (3), and the second component is preceding crossbeam (2), two first axle structures Part (631) is fastened on the left and right sides of rear crossbeam (3) bottom, and two second hinge components (632) are big before being fastened on The left and right sides of beam (2) bottom.

6. power assist vehicle according to claim 5, it is characterised in that: further include front truck (1) and seat (4), the front truck (1) setting in the front end of preceding crossbeam (2), top of seat (4) setting in rear crossbeam (3).

7. power assist vehicle according to claim 6, it is characterised in that: it further include front rod (81) and back link (82), it is described One end of front rod (81) and front truck are rotatablely connected one end of the connecting shaft (112) on (1), the front rod (81) it is another End is then rotatablely connected with the front side of rear crossbeam (3) bottom；One end of the back link (82) and the rear side of preceding crossbeam (2) bottom turn Dynamic connection, the other end of the back link (82) are then rotatablely connected with seat (4).

8. power assist vehicle according to claim 7, it is characterised in that: the seat (4) includes the chair back (41), seat station (42) With folding rod (43), for the folding rod (43) in curved rod-shaped, one end of the folding rod (43) is connected to the chair back (41), another One end is then connect with back link (82).

9. power assist vehicle according to claim 8, it is characterised in that: the front rod (81), back link (82) and folding rod (43) two are respectively provided with, is connected between two folding rods (43) by synchronizing shaft (44).

10. power assist vehicle according to claim 6, it is characterised in that: the front truck respectively sets (1) close to the two sides of bottom Be equipped with connecting rod (111), one end of each connecting rod (111) is fixedly connected with (1) with front truck, the other ends of two connecting rods (111) it Between be connected with connecting shaft (112), it is described after crossbeam (3) bottom be provided with can power assist vehicle folding after by connecting shaft (112) lock Fixed foldable locking device.