CN205239787U - Connect device and electronic tricycle for disabled soon - Google Patents

Abstract

The utility model discloses a connect device and electronic tricycle for disabled soon, including a central connecting block, an upper end pivoted joint locking release lever of center connecting block, its lower extreme rigid coupling bracing piece, the center connecting block is followed X axle direction one side and is set up a latch segment, center connecting block edge X axle direction opposite side still pivoted joint has the deformation supporting mechanism, warp the supporting mechanism with the locking release lever is joined in marriage and is connect, and with the locking release lever reaches the latch segment linkage forms locking releasing mechanism. The utility model relates to an exquisiteness, simple structure can realize ordinary hand wheelchair and the electronic anytime and anywhere of taking the lead high -speed joint and dismantlement, does not need any extra instrument, has improved connection efficiency greatly and has dismantled efficiency, and the stability and the security that have improved overall structure can not appear becoming flexible in holistic firm in connection.

Description

A kind of quick access device and electronic tricycle for the disabled

Technical field

The utility model relates to a kind of jockey and electronic tricycle for the disabled, especially a kind of Quick Connect Kit and adopt the electronic tricycle for the disabled of described quick access device.

Background technology

Wheelchair is the important tool of rehabilitation, and it is not only limbs the disabled and handicapped personage's walking-replacing tool, the more important thing is and makes them carry out physical exercise and participate in social activities by means of wheelchair.

Common hand wheelchair is generally made up of by four parts wheelchair frame, wheel, brake gear and seat, hand wheelchair is on common hand wheelchair basis, increase manual setter, if subject name is " wheelchair ", application number is 200920127691.6 utility model patent, its announcement be exactly a kind of hand wheelchair, and hand wheelchair not only labour intensity is large, and the speed of service of wheelchair is often also subject to certain restrictions.

Therefore, increasing enterprise begins one's study and integrates the wheelchair of various power set, especially electric wheelchair, if subject name is " light detachable electric wheel chair ", application number is 200520001999.8 utility model patent, it has disclosed a kind of dismountable electric wheelchair, and independent power device and the common hand wheelchair that can control direction by a connection bracket and two bolts link together, but this dismountable electric wheelchair also exists some problems:

1. the mode connecting with bolt, to bolted require high, once bolt looseness will have influence on the stability of connection and the security of travelling.

No matter 2. bolted mode is assembling or dismounting, all troubles relatively of process, and must have special instrument to carry out, thereby assembly and disassembly can not carry out all the time, are subject to the restriction of certain condition.

3. the structure that connection bracket and independent power device are integrated, once connection bracket is damaged, is difficult for disassembling from independent power device, and detachable maintaining and installation are all inconvenient.

Summary of the invention

The purpose of this utility model is exactly in order to solve the above-mentioned problems in the prior art, a kind of quick access device is provided and adopts the electronic tricycle for the disabled of described quick access device.

The purpose of this utility model is achieved through the following technical solutions:

A kind of quick access device, is characterized in that: comprise a center contiguous block, the pivotally connected locking release lever in upper end of described center contiguous block, the affixed support bar in its lower end; Described center contiguous block arranges a latch segment along X-direction one side, described center contiguous block has a distortion supporting mechanism along X-direction opposite side is also pivotally connected, described distortion supporting mechanism and described locking release lever connect, and form locking relieving mechanism with described locking release lever and the interlock of described latch segment.

Preferably, described a kind of quick access device, wherein: described center contiguous block comprises U-shaped groove body, described U-shaped groove body is provided with pivoting point along equal gap on each sidewall of Y direction, and described U-shaped groove body is installed with latch segment mounting groove along a side of X-direction, described U-shaped groove body bottom is installed with supporting bar connector.

Preferably, described a kind of quick access device, wherein: described locking release lever comprises handle portion, the affixed intermediate mass of end of described handle portion, the first end of described intermediate mass is pivotally connected on the contiguous block of described center, the second end of described intermediate mass offers a gap, and the interior pivotally connected locking hook that has of described gap, is restricted in described gap under described locking hook normality; Described locking release lever also comprises that one for making the scalable release lever of described locking hook from producing in described gap, and described release lever runs through described handle portion and intermediate mass and its turret terminal and extends to outside described handle portion.

Preferably, described a kind of quick access device, wherein: the center of described handle portion and intermediate mass is provided with the through hole of connection, described release lever is arranged in described through hole, and one end of affixed spring on described release lever, the other end of described spring is fixed on the inwall of described through hole.

Preferably, described a kind of quick access device, wherein: described support bar is the inverted T shape bar of stretching structure or foldable structure.

Preferably, described a kind of quick access device, wherein: on the end face that described latch segment connects with described locking release lever, offer the lock groove mating with described locking hook.

Preferably, described a kind of quick access device, wherein: described distortion supporting mechanism comprises pivotally connected upper connecting rod and the lower connecting rod on the contiguous block of described center in one end, the pivotally connected fixture of the other end of two connecting rods; Described lower connecting rod head lamp brush guard pivot connects one end of support member, and the other end of described support member is pivotally connected on described locking release lever.

A kind of electronic tricycle for the disabled, it comprises electric traction head, common hand wheelchair and above-mentioned quick access device, described electric traction head and described common hand wheelchair are assembled into one by described quick access device.

Preferably, the electronic tricycle for the disabled of described one, wherein: described electric traction head comprises front frame, is installed with the fixture for connecting described distortion supporting mechanism in described front frame.

Preferably, the electronic tricycle for the disabled of described one, wherein: on described common hand wheelchair, be provided with described quick access device on the Coupling that matches of latch segment, described Coupling and described latch segment and locking release lever coordinate to be realized the quick of described wheelchair and quick access device and is connected.

The advantage of technical solutions of the utility model is mainly reflected in:

1. the utility model deft design, simple in structure, can realize common hand wheelchair and be connected and dismantle fast anywhere or anytime with electronic taking the lead, and without any need for extra instrument, greatly improved joint efficiency and removal efficiency; And being connected firmly of entirety, there will not be looseningly, has improved integrally-built stability and security.

2. not only the connection disassembling of quick access device and common hand wheelchair is convenient for the utility model, and the connection disassembling of quick access device and electric traction head is also convenient, is convenient to keep in repair.

3. improved electric traction head overall structure is attractive in appearance, succinct, has saved the exposed mechanism such as engine, chain, and it is firm to move, and is not subject to the impact of the factor such as road conditions, weather, and resistance to overturning improves.

4. and due to the architectural feature of quick access device, its latter linked parts are except common hand wheelchair, also can be the rear vehicle frame of ordinary bicycle, tricycle and electric motor car, it is anterior connect except electric traction head, also can be other mechanisms such as handle-bar, thereby make the range of application of whole quick access device more extensive, the overall structure mode of texturing after connection is many, has greatly improved applicability and functional.

Brief description of the drawings

Fig. 1 is the three-dimensional structure diagram that in the utility model, quick access device is connected with electric traction head.

Fig. 2 is the cutaway view that in the utility model, quick access device is connected with electric traction head;

Fig. 3 is locking release lever enlarged drawing in the utility model;

Fig. 4 is the electronic tricycle for the disabled schematic perspective view of the utility model;

Fig. 5 is not lockup state schematic diagram of the electronic tricycle for the disabled of the utility model;

Fig. 6 is the electronic tricycle for the disabled lockup state of the utility model schematic diagram.

Detailed description of the invention

The purpose of this utility model, advantage and disadvantage, by for illustration and explanation the non-limitative illustration by preferred embodiment below. These embodiment are only the prominent examples of application technical solutions of the utility model, and all technical schemes of taking to be equal to replacement or equivalent transformation and form, within all dropping on the claimed scope of the utility model.

Embodiment 1

The utility model has disclosed a kind of electronic tricycle for the disabled, as shown in accompanying drawing 4-accompanying drawing 6, comprises electric traction head 7, quick access device and common hand wheelchair 8, and described electric traction head 7 is assembled into one with described common hand wheelchair 8 by described quick access device.

Concrete, as shown in Figure 4, described electric traction head 7 comprises front frame 71, and described front frame 71 can be the front frame of common electric bicycle or bicycle, is preferably the front frame of electric motor bicycle with folding, the therefore scalable adjustment of the height of described front frame 71; Described front frame 71 comprises T shape frame and Y shape vehicle wheel frame, and the montant of described T shape frame is plugged in the mobile jib of described Y shape vehicle wheel frame, and regulates height by retaining mechanism.

In described front frame 71, be provided with the speed of service speed regulating handle 72 for controlling electric traction head;

For the controller 73 of control circuit system operation;

Be used to each electrical part supplying cell bag 75;

Be used for driving connected steering wheel 76 rotary electric machines;

Be used for driving described front frame 71 integrated moving steering wheels 76; And for reducing the rotating speed brake handgrip 74 of described steering wheel 76.

Described speed regulating handle 72 is positioned at the cross bar right-hand member of described T shape bar, and described brake handgrip is positioned at the cross bar left end of described T shape bar; Described controller 73 is positioned on described Y shape direction wheel carrier mobile jib, and its front end is provided with power brick fixed mount, and described power brick 75 is fixed on described power brick fixed mount; Described motor is wheel hub motor, and is integrated in described steering wheel 76, and is prior art with the steering wheel 76 of wheel hub motor, repeats no more herein; The pivotally connected Y shaped bracket top at described Y shape direction wheel carrier of described steering wheel 76.

Described speed regulating handle 72, controller 73, wheel hub motor and power brick 75 are linked to be control circuit, the voltage signal that described speed regulating handle control sends to described controller, described controller is according to receiving the electric current of signal controlling to described wheel hub motor output, and then control described wheel hub motor rotating speed size, finally realize the control to the speed of a motor vehicle.

Certainly,, except preferred structure in the present embodiment, described electric traction head 7 can also be the structure of the electric bicycle head part of known any front-wheel drive.

In described front frame 71, be also installed with a fixture 6 for being connected with described quick access device, concrete, described fixture 6 bolts connect or are welded on described Y shape vehicle wheel frame mobile jib one end near Y shaped bracket, and with the opposite direction of described controller 73; On described fixture 6, gap is provided with upper and lower pivot.

As shown in Figure 1, described quick access device, comprises the center contiguous block 1, locking release lever 2, support bar 3, latch segment 4 and the distortion supporting mechanism that link into an integrated entity.

As shown in accompanying drawing 1, accompanying drawing 2, described center contiguous block 1 comprises U-shaped groove body 11, described U-shaped groove body 11 is provided with pivoting point 13 along equal gap on each sidewall 12 of Y direction, and the pivoting point 13 on two sidewalls 12 is symmetrical, simultaneously, between two symmetrical pivoting points, set up a pivot, wherein superposed is the first pivot 16, and what be positioned at bottom is the second pivot 17.

And described U-shaped groove body 11 is installed with latch segment mounting groove 14 along a side (being left side shown in figure) of X-direction, described latch segment mounting groove 14 is cuboid or square groove, be preferably cuboid groove, and the opening of described cuboid groove and horizontal direction present certain negative angle, and downward-sloping.

Described U-shaped groove body 11 bottoms are installed with supporting bar connector 15, and described supporting bar connector 15 is U-shaped groove shape, and its irregularly shaped sidewall in both sides along Y direction is provided with the screw for connecting described support bar 3 on respectively.

As shown in Figure 1, the pivotally connected locking release lever 2 in the upper end of described center contiguous block 1, described locking release lever 2 comprises columniform handle portion 21, certain described handle portion 21 also can other meet the shape that bodily fuctions learns, as spheroidal.

As shown in accompanying drawing 1, accompanying drawing 6, the affixed cylindrical intermediate mass 22 of the end of described handle portion 21, the first end 221 of described intermediate mass 22 offers the through hole mating with described the first pivot 16, thereby makes described intermediate mass 22 pivotally connected with described center contiguous block 1.

As accompanying drawing 4, shown in accompanying drawing 6, the second end 222 of described intermediate mass 22 offers a gap 223, described gap 223 extends to the zone line of described intermediate mass 22 from the end face 224 of described intermediate mass, the 3rd pivot 225 head lamp brush guard pivots in described gap 223 are connected with locking hook 23, as shown in Figure 3, described locking hook 23 comprises pivot connection 231, flat segments 232 and arc shaped hook 233, described pivot connection protrudes from described flat segments, and be positioned at the first side 234 of described flat segments, the width of described flat segments 232 is identical with the degree of depth of described gap 223, and the subregion of described flat segments 232 is positioned at described gap 223, thereby make to be restricted in described gap 223 under described locking hook 23 normalities.

As 3 formulas of accompanying drawing, the center of described handle portion 21 offers large scale through hole 241, the center of described intermediate mass 22 offers small size through hole 242, described large scale through hole 241 is communicated with formation through hole 24 with described small size through hole 242, the end openings of described through hole 24 is with the end face of described flat segments 232 to corresponding, and described through hole 24 is interior arranges one for the scalable release lever 25 from producing in described gap 223 by described locking hook 23.

Described release lever 25 comprises the first cylindrical bar 251 that is arranged in described large scale through hole 241 and second cylindrical bar 252 that can run through described small size through hole 242, described the first cylindrical bar 251 is coaxial with described the second cylindrical bar 252, and the diameter of described the first cylindrical bar 251 is greater than the diameter of described the second cylindrical bar 252; The one end that is connected with spring 26 on the joint face of described the first cylindrical bar 251 and described the second cylindrical bar, the other end of described spring 26 is installed on the inwall of described small size through hole 242.

Under normality, the turret terminal 253 of described the first cylindrical bar 251 extends to outside described handle portion 21, and described the first cylindrical bar 251 has a fragment position to be positioned at outside described handle portion 21, and the end of described the second cylindrical bar 252 is on the end face of described flat segments 232 first sides.

As shown in Figure 1, described center contiguous block 1 arranges a latch segment 4 along X-direction one side, and described latch segment 4 mates with described locking release lever 2; Concrete, described latch segment 4 is plugged in described latch segment mounting groove 14, on the end face that described latch segment 4 connects with described locking release lever 2, offers the lock groove 41 mating with described locking hook 23.

As shown in accompanying drawing 1-accompanying drawing 2, described distortion supporting mechanism comprise one end pivotally connected be upper connecting rod 51 and lower connecting rod 52 at described center contiguous block 1 along two connecting rod 5(of X-direction opposite side (in accompanying drawing for right side)), concrete, one end of described upper connecting rod 51 is pivotally connected on described the first pivot 16, and the same side of described lower connecting rod 52 is pivotally connected on described the second pivot 17; The other end of described two connecting rods 5 is a pivotally connected fixture 6 all, and two parallelogram of four pivoting points formation that connecting rod 5 is connected with described center contiguous block 1 and fixture 6.

Described upper connecting rod 51 comprises symmetrical pivot connector with one end that described the first pivot 16 is connected, described pivot connector forms a breach, the width of described breach is slightly larger than the width of described intermediate mass 22, and the degree of depth of described breach meets the fast requirement of rotating in described centre; The shape of other parts of described upper connecting rod 51 can be the structures such as cylindrical, cuboid or arc body, is preferably arc body structure.

Described lower connecting rod 52 entirety are arc body structure, certainly its shape also can be identical with upper connecting rod 51, and one end of the pivotally connected support member 10 in the centre position of described lower connecting rod 52, the other end of described support member 10 is pivotally connected on the first end 221 of described intermediate mass 22.

The distortion supporting mechanism that described two connecting rods 5, support member 10 and fixture 6 form and described locking release lever 2 and 4 interlocks of described latch segment form locking relieving mechanism.

In the time of assembled state, described locking relieving mechanism on the one hand can be in the time that assembling completes, and limits the movement of described locking release lever 2, on the other hand can be in the time that assembling complete, make to lift on the anterior and described center contiguous block of described hand wheelchair 76.

An affixed support bar 3 on the supporting bar connector 15 of described center contiguous block 1, described support bar 3 is inverted T shape bar, it comprises that T-shaped bottom bar and bolt are connected to the montant in described bottom bar, the top of described montant is provided with the installing hole mating with the screw on described supporting bar connector 15, and realizes being fixedly connected with of described support bar 3 and supporting bar connector 15 by bolt.

Certainly in other embodiments, described support bar 3 can be also conventional expansion link or folding rod.

As shown in accompanying drawing 4-accompanying drawing 6, the structure of described common hand wheelchair 8 is close with conventional hand wheelchair, the parts such as not shown driving handwheel, cushion, and the structure of its concrete structure is known technology, does not repeat them here; Be with the distinctive points of common hand wheelchair: on described common hand wheelchair 8, be provided with described quick access device on the Coupling 9 that matches of latch segment 4, described Coupling 9 extends and it is on the center line between the two-wheeled of described common hand wheelchair 8 along X-direction.

Further, the shape of described Coupling 9 is identical with described latch segment 4, its size is slightly larger than or is less than described latch segment 4, the present embodiment is preferably more than described latch segment 4, and on described Coupling 9, be provided with described latch segment 4 on the hole that matches of lock groove 41, thereby described Coupling 9 and described latch segment 4 and locking locking release lever 2 being coordinated realize the quick of described wheelchair and quick access device is connected.

Use quick access device of the present utility model to carry out electric traction head 7 and common hand wheelchair 8 while assembling, its concrete process is as follows:

First the upper connecting rod on described quick access device and lower connecting rod are passed through on the pivotally connected fixture 6 on described electric traction head 7 of bolt, thereby realize being connected of described quick access device and described electric traction head 7, and under normality, after described quick access device and drawing head 8 fit together, can independently stand and can fall down on the ground and not.

Subsequently, the latch segment of described quick access device 4 is plugged in the Coupling 9 on described common hand wheelchair, and makes on hole on described Coupling 9 and described latch segment 4 locking slot 41 overlapping; Now, as described in accompanying drawing 4, accompanying drawing 5, rotate in the counterclockwise direction described handle portion 21, described locking release lever 2 entirety are rotated taking described the first pivot 16 as axle center, now, the second end 222 of described intermediate mass 22 moves to low level from a high position, thereby makes described arc shaped hook 233 close to described locking slot, and enters and in described locking slot 41, be stuck in card contact 42 places.

Now, if do not considered the impact of other structures, although described arc shaped hook 233 can be stuck in described card contact 42 places, what but described arc shaped hook 233 can not be firm is stuck in described card contact place, because if rotate along clockwise direction more described release locking handle, described arc shaped hook 233 still can depart from described card contact 42, therefore just need to have miscellaneous part that described arc shaped hook 233 is fixed on to described card contact 42 places.

Because described latch segment 4 is downward-sloping, therefore when described arc shaped hook 233 snaps into described card contact 42 in rotation process, apply the power of lifting obliquely upward to described latch segment 4, lift at described oblique upper under the effect of power, described latch segment 4 has mobile obliquely upward inclination, thereby make described center contiguous block 1 produce mobile obliquely upward tendency, now because two connecting rods 5 that are connected on described center contiguous block 1 are that axial bascule and described arc shaped hook 233 are still fixing with engaging of card contact, so, described center contiguous block 1 has mobile obliquely upward space and the free degree, and there is the movement of oblique upper, but due to described arc shaped hook 233 and the restriction of card contact 42, the inclination that described center contiguous block 1 moves to horizontal direction is less, so, the motion of described center contiguous block 1 is taking lifting upwards as main.

The lifting of described center contiguous block 1 drives two described connecting rods 5 to rotate in the clockwise direction of axle center taking the pivotally connected point of they and fixture 6, due to the upwards lifting of described lower connecting rod 52, therefore, the lower end position of described support member 10 is also followed described lower connecting rod 52 and is improved.

Further, in the process of rotating at described locking release lever 2, the first end 221 of described intermediate mass 22 moves to a high position from low level, and drive the upper end of described middleware 10 to move to a high position from low level, last in this moving process, the first end 221 of described intermediate mass 22 and the upper end of described middleware 10 abut to the roof of described upper connecting rod 51.

Now, in conjunction with the lifting campaign of described center contiguous block 1, when described middleware 10 lower ends move to appropriate location time, the upper end position of described middleware 10 and lower end position are all fixing, thereby described middleware 10 provides stable support force to the first end 221 of described intermediate mass 22, the first end 221 of described intermediate mass 22 is fixed on the roof of described upper connecting rod 51 and can not moves, and then make described arc shaped hook 233 be fixed on described card contact 42 places cannot to move again.

Therefore under end-state, as shown in Figure 6, the 1 overall lifting of described center connector, and drive two described connecting rod distortion, simultaneously, along with moving in contiguous block 1 entirety of described center, it also drives the front portion of described common hand wheelchair to upwarp, thereby makes the universal wheel that rest on the ground depart from ground and unsettled, final, electronic tricycle for the disabled global approximation one electro-tricycle, only has the wheel of electric traction head 7 and two large trailing wheels of common hand wheelchair to rest on the ground.

Now, the steering wheel 76 of described electric traction head 7 and described trailing wheel 82 are on same the first horizontal plane 20, and the position of residing the second horizontal plane 30 of the minimum point of described universal wheel 81 is higher than the position of described steering wheel 76 and trailing wheel 82 common residing the first horizontal planes 20.

And in the time the electronic tricycle for the disabled assembling need to being dismantled, its detailed process is as follows:

First press described turret terminal 253, now described release lever 25 is under pressure to described locking hook 23 applied thrusts, thereby promoting described locking hook 23 clockwise rotates as axle center taking described the 3rd pivot 225, now described locking hook 23 departs from described card contact 42 and exits from described locking slot 41, now, because described locking hook 23 is no longer fixed structure with described card contact 23, it is unrestricted so described handle portion 21 can freely be rotated, now clockwise rotate again described handle portion 21, thereby make each parts return to original state.

As shown in Figure 5, now described latch segment 4 still connects together and does not separate with described Coupling 9, and in this state, the steering wheel 76 of described electric traction head 7 is positioned in same level with universal wheel 81 and the trailing wheel 82 of described hand wheelchair 8.

Then, described latch segment 4 is extracted to separation from described Coupling 9, can realize the dismounting of described quick access device and common hand wheelchair.

While moving down due to described release lever 25, pull described spring 26 simultaneously, when clockwise rotating after described handle portion, unclamp described turret terminal 253, described release lever 25 returns to normal under the reaction force of described spring 26, and described arc shaped hook 233 rotates back under normality under self gravitation effect simultaneously.

Finally, then the bolt of one end that described upper connecting rod 51 and lower connecting rod 52 are connected with described fixture 6 unclamps, can be by the separating of described quick access device and described electric traction head 7, thus complete the dismounting of whole electronic tricycle for the disabled.

Except the electronic tricycle for the disabled in above-described embodiment, in other embodiments, front-wheel mechanism and rear wheel mechanism that described quick access device also can connect ordinary bicycle form ordinary bicycle, or described quick access device also can connect the powered rear wheels mechanism of ordinary bicycle and common electric car, thereby become common electric motor car with two wheels etc., as long as be provided with the Coupling that mates with described latch segment 4 in corresponding mechanism and can connect with quick access device of the present utility model product or the structure of formation needs with the fixture 6 that described two connecting rods 5 connect.

The utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technical schemes of forming, within all dropping on protection domain of the present utility model.

Claims (10)

1. a quick access device, is characterized in that: comprise a center contiguous block (1), the pivotally connected locking release lever (2) in upper end of described center contiguous block (1), the affixed support bar in its lower end (3); Described center contiguous block (1) arranges a latch segment (4) along X-direction one side, described center contiguous block (1) has a distortion supporting mechanism along X-direction opposite side is pivotally connected, described distortion supporting mechanism and described locking release lever (2) connect, and form locking relieving mechanism with described locking release lever (2) and described latch segment (4) interlock.

2. a kind of quick access device according to claim 1, it is characterized in that: described center contiguous block (1) comprises U-shaped groove body (11), described U-shaped groove body (11) is provided with pivoting point (13) along the upper equal gap of each sidewall (12) of Y direction, and described U-shaped groove body (11) is installed with latch segment mounting groove (14) along a side of X-direction, described U-shaped groove body (11) bottom is installed with supporting bar connector (15).

3. a kind of quick access device according to claim 1 and 2, it is characterized in that: described locking release lever (2) comprises handle portion (21), the affixed intermediate mass of end (22) of described handle portion (21), the first end (221) of described intermediate mass (22) is pivotally connected on described center contiguous block (1), second end (222) of described intermediate mass (22) offers a gap (223), the interior pivotally connected locking hook (23) that has of described gap (223), is restricted in described gap (221) under described locking hook (23) normality; Described locking release lever (2) also comprises that one for making the scalable release lever (25) of described locking hook from producing in described gap (221), and described release lever (25) runs through described handle portion (21) and intermediate mass (22) and its turret terminal (251) and extends to outside described handle portion (21).

4. a kind of quick access device according to claim 3, it is characterized in that: the center of described handle portion (21) and intermediate mass is provided with the through hole (24) of connection, described release lever (25) is arranged in described through hole (24), and one end of the upper affixed spring (26) of described release lever (25), the other end of described spring (26) is fixed on the inwall of described through hole (24).

5. a kind of quick access device according to claim 4, is characterized in that: described support bar (3) is the inverted T shape bar of stretching structure or foldable structure.

6. a kind of quick access device according to claim 5, is characterized in that: on the end face that described latch segment (4) connects with described locking release lever (2), offer the lock groove (41) mating with described locking hook.

7. a kind of quick access device according to claim 6, it is characterized in that: described distortion supporting mechanism comprises pivotally connected upper connecting rod (51) and the lower connecting rod (52) on described center contiguous block (1) in one end, and the other end of two connecting rods (5) is pivotally connected in a fixture (6); Described lower connecting rod (52) head lamp brush guard pivot connects one end of support bar (10), and the other end of described support bar (10) is pivotally connected on described locking release lever (2).

8. an electronic tricycle for the disabled, it is characterized in that: comprise electric traction head (7), common hand wheelchair (8) and the arbitrary described quick access device of claim 1-7, described electric traction head (7) is assembled into one with described common hand wheelchair (8) by described quick access device.

9. the electronic tricycle for the disabled of one according to claim 8, is characterized in that: described electric traction head (7) comprises front frame (71), is installed with the fixture (6) for connecting described distortion supporting mechanism in described front frame (71).

10. the electronic tricycle for the disabled of one according to claim 9, it is characterized in that: on described common hand wheelchair (8), be provided with described quick access device on the Coupling (9) that matches of latch segment (4), described Coupling (9) and described latch segment (4) and locking release lever (2) coordinate to be realized the quick of described wheelchair and quick access device and is connected.