CN205125607U

CN205125607U - Wheelchair

Info

Publication number: CN205125607U
Application number: CN201490000732.4U
Authority: CN
Inventors: 巴勃罗·卡普兰; 德维尔·布兰德; 艾黑莎·萨迪斯; 耶胡达·奇维·埃雷兹·吉拉第
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-19
Filing date: 2014-08-19
Publication date: 2016-04-06
Anticipated expiration: 2024-08-19
Also published as: WO2015025322A3; WO2015025322A2; BR112016003430B1; ZA201601248B

Abstract

Disclosed theme is about a wheelchair. Wheelchair includes the seat unit that has a seat part of plastic moulding. The seat part is constructed to hinging on two the parallel horizontal installation who extends supporting beam of braced frame, and braced frame is constructed to bearing the load of exerting on the seat unit. Wheelchair still includes the preceding swivel wheel of a pair of main wheel and at least one, a pair of main wheel is separately through the fixed braced frame that arrives of corresponding shaft. At least one brake assembly is further provided for control the operation of at least one main wheel.

Description

Wheelchair

Technical field

Disclosed theme relates to wheelchair, and particularly relates to the wheelchair with the seat part that the plastics that can nestedly stack are molded.

Background technology

WO06026810A1 is for a kind of wheelchair main body with the molded structure of back part, seat part and hind axle installation portion, and back part, seat part become the main body of molded structure can be stacked by nestable interior bonds with same main body with hind axle installation structure.

Utility model content

Disclosed theme be for a kind of wheelchair and especially for relatively low cost, be easy to the wheelchair that manufactures, it can easily transport in a compact fashion, thus only needs minimum space to a large amount of wheelchairs.Comprise support frame according to the wheelchair of disclosed theme, the seat unit of support frame can be connected to, two main wheels and at least one front-wheel.According to an embodiment of disclosed theme, support frame is formed by the beam that continuous print is elongated, and this beam is bent to the required shape of support frame.

Beam relates to a kind of substantially elongated element as the term is employed herein, and it can be the element of tubulose of hollow, arbitrarily required cross section, or has the non-hollow element of cross section of any required geometry.Cross section can be circular, triangle, T-shaped, I shape etc.Beam can be tubular and manufactured by metal, such as iron, aluminium or plastics or composite, such as example reinforced plastics.

According to the one side of disclosed theme, provide a kind of wheelchair, this wheelchair comprises: comprise the seat unit that the plastics of seat part are molded, two levels extended in parallel that described seat part is configured to be hinged on support frame are installed on brace summer, and support frame is configured to bear the load be applied on described seat unit; A pair main wheel and at least one forward castor, described a pair main wheel is fixed to described support frame independently each via corresponding wheel shaft, and at least one is for controlling the brake assemblies of the operation of at least one in described main wheel.

According to the another aspect of disclosed theme, provide a kind of support frame being configured to the load born on it, this support frame comprises two trapezoidal arced configuration, described two trapezoidal arced configuration comprise the level forming top base separately and install brace summer, described two trapezoidal arced configuration are connected by least one tie-beam, and tie-beam is installed in the low plane of brace summer in the level more parallel than two and extended.

According to an embodiment of this one side, each back leg in described two trapezoidal arced configuration is suitable for engaging wheels, and wherein, the free end of each foreleg in trapezoidal arced configuration is suitable for engaging front-wheel.According to another embodiment, support frame is configured to seat unit thereon hinged.Seat unit can be made up of any required material, such as plastics, timber, metal etc., and can be detachably connected to or be fixed on framework.According to an embodiment, seat unit can be the form of installing the elastic webbing extended between brace summer two parallel levels.The back part of seat unit can be detachably connected to seat part or integrally shaping with it.According to another embodiment, back part can the hinged or extension from the rear end of support frame.

Following characteristics, design and structure any one or more can be combined in independently or in combination according in wheelchair of the present invention and/or support frame:

Seat unit is the monomer-type single-piece comprising back part;

Seat unit removably can be attached to the installation brace summer of solid support framework;

Seat unit can nestedly overlay same seat unit after support frame disassembles;

Seat unit can along the length adjustment of two brace summers, makes seat unit the position of distance needed for the front end apart from wheelchair support frame to be hinged on brace summer;

Seat unit comprises saddle mounting portion in its bottom side, and saddle mounting portion is constructed to engage installs brace summer;

Seat unit is constructed to snapably be hinged to support frame;

Comprise and be arranged on from the foot support installation portion of corresponding brace summer respectively towards the free end of two parallel girders of downward-extension;

Comprise and be arranged on from the foot support installation portion of corresponding brace summer respectively towards the free end of two parallel girders of downward-extension, wherein, foot support installation portion is the shape of roughly Ω shape, make the corresponding free end of described two parallel girders of each joint in two of foot support installation portion free ends, and wherein, the middle body of foot support installation portion is configured to receive foot support component;

Foot support component can adjust to the required separation distance of the front end relative to support frame along described installation portion;

Support frame comprises two the trapezoidal arced configuration connected by least one tie-beam, and described at least one tie-beam extends in the plane that the installation brace summer than level is low;

In plan view, support frame is in roughly U-shaped;

Support frame by a continuous print, formed elongated beam components integers;

The cross section of support frame is circular; And/or

Comprise the handle that at least one is arranged at the rear side of wheelchair.

Accompanying drawing explanation

How to implement in practice to understand the disclosure and understanding, now with reference to the mode of accompanying drawing by means of only non-limiting example, embodiment is described, wherein:

Figure 1A and 1B is side isometric view and the rearview of the wheelchair of an embodiment according to disclosed theme respectively;

Fig. 2 A to 2C is the face upwarding stereogram of the seat unit of wheelchair in Figure 1A respectively, rearview and top view;

Fig. 2 D is the top perspective view of the support frame of wheelchair in Figure 1A;

Fig. 2 E is the top perspective view of the support frame of another embodiment according to disclosed theme;

Fig. 3 A and 3B is the side isometric view being provided with the wheelchair of steerable pedal according to disclosed theme, is illustrated respectively in use location and folded position;

Fig. 4 shows the major part of wheelchair in the position that can nestedly stack in Fig. 3 A, is suitable for transport and stores;

Fig. 5 A to 5D shows the various design structures of the wheelchair according to disclosed theme;

Fig. 6 A and 6B is the main parallax stereogram and rear perspective view that construct according to the wheelchair of another embodiment of disclosure theme respectively;

Fig. 7 is the exploded isometric view of the wheelchair shown in Fig. 6 A;

Fig. 8 is mounted in the side view of the seat unit on installation frame;

Fig. 9 A and 9B is rear top perspective view, illustrated therein is the consecutive steps of the installation of the handled seat unit of installation of wheelchair;

Figure 10 is the top perspective view of the wheelchair of another embodiment according to disclosure theme; And

Figure 11 is the top perspective view of the support frame of wheelchair in Figure 10.

Detailed description of the invention

Figure 1A and 1B shows the wheel seat assembly according to disclosed theme.The wheelchair being denoted as 100 generally comprises installation frame 120 (the best is shown in Fig. 2 D and 2E) and is arranged on the seat unit 140 (the best is shown in Fig. 2 A to 2C) on installation frame 120.Wheelchair is constructed to two side wheels 150 and two forward castors (swivelwheel) 160.Wheelchair 100 also comprises the pedal bracing or strutting arrangement 170 near the lower front part of the installation frame 120 being hinged on wheelchair 100.

According to disclosed theme, seat unit 140 is main bodys that monomer-type plastics are molded, comprise back part 142 and the seat part 144 with balustrade panel 145A and 145B one, balustrade panel upwards extends and Connection Block bit position 144 and back part 142 from seat part, is fixed by seat unit as a whole thus and plays the effect taking turns guard shield further.

Although balustrade panel 145A and 145B also plays the effect of wheel arch in the illustrated example, and these balustrade panels and back part 142 and seat part 144 are integratedly shaping (the best is shown in Fig. 2 C), but should be appreciated that such balustrade panel removably can be attached to seat unit.This may be useful, such as, easily climbs up/goes down wheelchair and make the weight of monomer-type seat unit lighter further for the ease of individuality.

Visible two handles 162 further, this two handles and back part 142 are molded integratedly and extend back from back part and be constructed to be convenient to wheelchair 100 and such as undertaken manipulating and moving by nursing staff.But it should be understood that constructing such handle according to other can removably be attached to back part 142, and different structures (such as, handlebar etc.) can be had, such as, seen in the example of Fig. 6 and 10.

Every side of seat part 144 is all provided with the installation extension 136 to downward-extension of one, installs extension 136 outstanding below seat part 144.These are installed extension 136 and are constructed to the cross section 135 (the best is shown in Fig. 2 A and 2B) with saddle, the cross section 135 of saddle extends along the major part of the length W of seat part and is convenient to seat unit 140 and is installed on support frame 120, as will be further elucidated hereinbelow.As can be understood, installation extension 136 can be continuous print along the length W of seat part, or be segmented, but be constructed to firmly install and be hinged on support frame 120.Although in this embodiment, installation extension extends along the major part of the length of seat part, but also can apply other structure, such as seen in fig. 8, wherein saddle part 235 extends just the part (also can see in the example of Figure 10 and 11) being obtained support by the trapezium structure on support frame limit of seat length.

Seat cushion 141 and backing cushion 143 is also provided with according to the wheelchair 100 of this embodiment.These are established to use the comfortable of the people of wheelchair, and be can easily pull down to carry out cleaning, change and using as washing/toilet wheelchair.Should be understood that seat unit can over its entire surface or the ergonomics effectively upper preformed/pre-molded of part (such as, by coated molded) bradyseism acting body.

According to disclosed theme, wheelchair seat unit 140 be with the material of such as polypropylene, polyethylene, polyvinyl chloride, acrylic resin, Merlon, nylon or polyamide by injection moulding or blow-molding process shaping.Various additive such as glass fibre or glass dust, ultra-violet stabilizer, antimicrobial, pearl filler and/or fire retardant can be used to change or improve basic polymer performance.This is conducive to the quick production in enormous quantities of the accurate and consistent seat unit of size.But should be understood that, any suitable molding process can use.Molded design provides a kind of structure, its not only firm, lightweight, be ergonomics, easily according to reason and structurally independently; This structure can also easily can be nestedly stacking with identical structure in ground, is conducive to for storing and the close package of transport thus, as shown in Figure 4.Seat unit 140 can be detachably connected to support frame 120 and when when the state be disassembled, seat unit 140 is constructed to can be nestedly stacking with identical seat unit thus.Should be understood that, seat unit can be stored/transport with the state of taking apart, and after seat unit is assembled, can is permanent or impermanent, namely can easily dismantles with the attachment of support frame.

For the benefit of nested stacking, the part upwards extended the such as back part 142 and balustrade panel 145A and 145B of seat unit 140 are slightly towards outer incline.The nested property that the angle of gradient is chosen to make it possible to obtain maximum height also provides comfortable seat to support simultaneously.In addition, the installation extension 136 to downward-extension is hollow, has open top, and be constructed within it to receive stacking thereon with the identical installation extension 136 of nested seat unit within it.Although can discuss for seat unit 140 by stackability, to should be understood that disclosed in this theme and other seat unit of imagination also can be stackable.

Be molded because seat unit is plastics, its each several part, the bottom side of such as back part and seat member can be provided with ribs 142 and 137 respectively.Substantially extend along the length direction at whole back at the ribs 142 of back part 142 back surfaces.The ribs 137 extended along the lower surface of seat part 144 extends in the mode of segmentation across seat part 144 and engages with the inner wall surface 136A of the installation extension 136 to downward-extension.

For providing the design of ergonomics, the front portion of seat part 144 slightly bends and is provided with flange 139, and it is the protrusion to downward-extension of seat part.

Forward now Fig. 2 D and 2E to, support frame 120 is constructed to the framework of U-shaped substantially, its have rear portion, the tie-beam 126 of horizontal-extending, tie-beam 126 is configured between the brace summer 128 of two almost parallel extensions, wherein the free end 127 of brace summer 128 is to downward-extension and as swivel wheel installation portion, as discussed in detail further hereinafter.

In the example of Fig. 2 D, the plane of tie-beam 126 below the plane defined by brace summer 128 to extend, and in Fig. 2 E, the same plane that tie-beam 126 defines at brace summer 128 extends.

Brace summer 128 is constructed to bear seat unit when seat unit 140 is mounted thereto and therefore support frame 120 has enough supporting forces to bear the weight (when wheelchair 100 is the state of assembling and has wheel to be installed on it) of seat unit 140 and a people.In order to this object, as discussed above, seat unit 140 is provided with the saddle portion 135 of concave surface, it is configured to both sides along seat part 144 and from it to downward-extension, with by fastener as bolt, clip and analog are fixedly mounted on brace summer 128, as being described below with reference to Fig. 7.

Every bar brace summer 128 is all provided with wheel installing plate 130, and the best is shown in Fig. 2 D and 2E.Wheel installing plate 130 has been constructed to several hole 132, and each being suitable for receives from its wheel shaft passed (see such as Figure 1A and 1B).According to disclosed theme, take turns each for two and be connected to respective wheel installing plate 130 respectively.Eachly take turns 135 and can the selection of passing hole 132 (wheel shaft is inserted into through hole 132) control relative to the position of installing plate, the control of Wheelchairs Available height and center of gravity thus.

The structure of support frame 120 makes it be suitable for the load of the seat unit born when being taken by individuality.Although do not have main shaft to be provided to engage the main wheel 150 of wheelchair, load is distributed to whole support frame 120 substantially fifty-fifty, and wherein tie-beam 126 is by installing and be hinged to saddle portion 135 on brace summer 128 by the power load distributing of seat unit 140.As visible in the drawings, wheel 150 is preferably single unit molded plastic design and has the completely molded solid handrail 152 be attached on it.Handrail can be molded integratedly with wheel 150 or can be fixed on wheel in the stage as independent parts manufacture and afterwards below.

Wheel 150 has tire, and it can be any applicable material or structure, comprises solid rubber or plastics, or it may have the outside of the hollow with interior pipe, depends on the damping amount of needs.Alternately, wheel can be suitable for standard on the support frame of installing, ready-made wheel (such as, taking turns wheel).

Wheel guard shield 145A and 145B of main body 140 extends beyond the uppermost part of wheel 150, to cover the top of tire, and have outward flange, outward flange and wheel rim only have very little gap, can not be stuck in space to make finger.Should be understood that, the wheel being suitable for any type used with wheelchair in order to the object of current disclosed theme be all operable.

When disassembled form, see Fig. 4, all identical parts of wheelchair 100 can be stacked to make to save space in transport with in storing.Thus, installation frame 120 is constructed to be stacked on together, and seat unit 140 is by nestedly stacking, and foot support 170 is also constructed to can be nestedly stacking with identical support, and takes turns 150 and jointly packed.

Foot support/pedal 170 removably can be attached and can move and be placed on the comfortable position of people.Foot support can move up in substantially vertical side and be shifted, such as Fig. 1,3,5 and/or flatly move and be shifted, such as, according to the embodiment of Fig. 6 and 10, as will hereinafter disclosed in.Such displacement allows adjustment pedal relative to the height at seat and position to meet the height/length of user's lower body part.Embodiment according to Fig. 3 A and 3B, foot support 170 comprises the U-shaped framework 171 of the swivel wheel installation portion 127 being attached to support frame 120, and foot support comprises pedal 170A and 170B of two pivot knuckles, pedal 170A and 170B can pivot in opposite direction displacement, with when leaving or enter wheelchair to provide unimpeded passage.Should be understood that pedal 170 allows the mode of Height Adjustment to be connected to support frame.

See Fig. 5, the various designs of wheelchair it is contemplated that.Such as, the adjustment meeting ergonomics can perform in the front portion of handrail, handle, seat unit, so that the comfortable seat of user is put.In figure 5b, seat unit have before to the leg of the reception swivel wheel of downward-extension.Wheelchair such as can not have pedal (Fig. 5 D) or has heteroid pedal.May further include various feature example according to the wheel seat assembly of disclosed theme, as the opening 180 and 182 on seat unit, pass (see Fig. 3 A and 3B) to facilitate for belt people be fixed on seat unit.Seat part can comprise an opening (such as toilet opening, not shown) thereon, thus allow individual use wheel seat assembly and or seat portion as toilet seat or bathroom chair.Because seat unit can be dismantled easily from support frame, it can easily on the ground or toilet seat with allow user cosily to sit to put and by back part and handrail support.

According to disclosed theme, another embodiment that entirety is denoted as the wheelchair of 200 illustrates in Fig. 6 A to 6B.For with for the similar feature of the feature described by the wheelchair 100 shown in accompanying drawing before, use is added that the Reference numeral of 100 describes by this wheelchair and its feature in this article.

A difference between wheelchair 200 and wheelchair 100 is embodied in the structure of support frame 220.Supporting component comprises the arch (being configured to arch and comprise center, approximate horizontal brace summer portion 228) of the inverted u-shaped of two upsides, and these two arches are connected by the center-pole 229 that keeps supporting arch to keep at a distance in parallel with each other.The rear side of each arch 228 is fixed with bandy extension 231, and extension has been configured to handle pedal 221A and 221B and has promoted wheelchair use for nursing staff.Such pedal is furnished with surf zone, and surf zone is configured to allow the pin of nursing staff to put thereon, such as to tilt wheelchair.(such as illustrate in fig. ib) in example before, this function is facilitated by the existence of tie-beam (bar) 126.

As visible in Fig. 6 B and 7 and Figure 10, the wheel 250 of this structure be to be arranged on U-shape respectively at fixing pin receiving position 229A with 229B by axle/pin 241 supporting arch on be connected.The wheelchair support frame of this structure is provided with brakes 231 further, and brakes 231 is suitable for engaging wheel with the movement preventing its unintentional rotation from also therefore preventing wheelchair.

Seat unit 240 is arranged on installation frame 220 by the saddle member 235 being located on the downside of seat unit 240 two corresponding.Saddle member 235 is arranged in the basic horizontal portion 228 of U-shape component.The length in saddle portion 235 corresponds essentially to the length (the best is shown in Fig. 8) of part 228, as long as but should be understood that seat unit 240 can be installed and be supported by it, the length in saddle portion 235 just can change.As Fig. 8, seat unit is by bolted attachments to support frame in this illustration, and wherein bolt extends through the Vierendeel girder of the horizontal part of U-shaped component and enters the saddle portion of seat unit.

Other difference between the embodiment of wheelchair 100 and current explanation is the handle 261 of wheelchair.As Fig. 9 A and 9B, handle 261 is attached to the back rest supports (the part place in its top cross) of seat unit.Handle 261 is each to be inserted through to establish opening 262 within it and use and to fix from the foot vertical projections of handle panel 263 on the direction of arrow A and A'.Handle 261 is slightly bending thus when being fixed to back rest supports, extends from back rest supports to away from direction backward.In order to comfortable, handle can be provided with the shock-absorbing sleeve being configured to coated outward extending handle.

Another embodiment according to the wheelchair (entirety is denoted as 300) of disclosed theme illustrates in figures 10 and 11.For with for the similar feature of the feature described by the wheelchair 100 and 200 respectively shown in accompanying drawing before, use is added that the Reference numeral of 200/100 describes by this wheelchair and its feature in this article.

A difference between wheelchair 300 and wheelchair 200 is embodied in the structure of support frame 320.Support frame 320 is constructed to be the framework of roughly U-shaped when checking with plan view, framework has the tie-beam 326 flatly extended at rear portion, between the brace summer 328 being connected to two almost parallel extensions, brace summer 328 forms the top base of trapezium structure T1 and T2, and tie-beam 326 vertical support beam 328 extends and plane below the plane limited by brace summer 328 extends.Be provided with foot support installation portion 371 in the side contrary with tie-beam 326, foot support installation portion 371 engages two parallel beams 327, and beam 327 is each since corresponding brace summer 328 is to downward-extension, and forms the foreleg of trapezium structure T1 and T2.In this embodiment, foot support installation portion is attached at the top of support frame regularly.As finding in this embodiment, the foot support installation portion 371 of this embodiment is roughly Ω shape, the end of setting a roof beam in place is contacted respectively with the free end of beam 327, and stayed surface is on the surface lower than the surface of end.According to this structure, obtain the balance between the space of the swivel wheel of beam 327 end and the distance at foot support installation portion distance seat.

Front-axle beam 327 and the back rest 301 (every bar back rest forms the back leg of corresponding trapezium structure) brace summer 328 being connected to tie-beam 326 extend from horizontal shore to downward-extension with the angle being equal to or greater than 90 °.The structure forming two trapezoidal arced configuration T1 with T2 is thus connected beam and is connected from side and is provided with foot support installation portion 371 in contrary side.According to this example, support frame 320 is formed by a continuous print beam, this beam with an angle folding with obtain limit structure.Foot support installation portion according to this embodiment is integrally connected to beam 327.The framework of this embodiment is the such as iron, aluminium, reinforced plastics etc. that are formed by any suitable material.Support frame with the angle of seat unit and beam can be chosen to the durability of height, stability and robustness are kept with the thickness of plastic seat parts.

Because brace summer 328 is constructed to bear seat unit when seat unit 340 is mounted thereto, said structure gives support frame 320 with enough supporting forces to bear the weight (when wheelchair 300 is in assembled state and has wheel to be installed on it) of seat unit 340 and a people.As in embodiment before, seat unit 340 is provided with the saddle portion 335 (invisible) of concave surface, it is configured to two sidepieces along seat part 344 and from described two sidepieces to downward-extension, with by fastener as bolt, clip and analog are fixedly mounted on brace summer 328.According to this example, seat unit 340 can adjust between two different positions (in Fig. 10 only visible) by it being connected to hole 381a and 381b or 383a and 383b.Foot support 370 is also adjustable on foot support installation portion 371, is realized by the connecting pin (invisible) at the several intervals provided on the bottom of the receivable support in hole 373 place 370.Pin can be locked in place, and foot support is removably attachable, allows foot support to be attached at different distances relative to end 327 thus.Due to this structure, wheelchair for differing heights user be adjustable, the user when seat unit passing hole 383a is connected with 383b with longer four limbs or height can be had seats for, and foot support will be adjusted to certain distance to support the both feet of user.But in the illustrated embodiment only two connect selections and be illustrated, should be understood that the other selection of the adjustment for seat unit and/or foot support also can be provided.This allows the user of different stature to use identical structure and can such as be used by identical user (such as child) when his stature has changed.Should be understood that the structure that other allows seat unit to adjust on the support frame all it is contemplated that.Such as, seat unit can be constructed to be arranged on (such as, by shape of a saddle installation portion) on brace summer 128,228,328 in the occlusion of any desired position.Should be understood that such structure can be provided with further block/fixture to be to prevent seat unit displacement or slip unintentionally on the support frame.Such device can be a part for seat unit or support frame, or can be independently removably installable device.

As in a first example (such as Fig. 2 D), the load when structure of support frame 320 makes it be suitable for bearing being taken by people of seat unit.Structure is provided with damper (such as in the figure 7 seen 279) further, and damper is the form of the rubber blanket be arranged between seat unit and brace summer.The damper of other type can as required in addition necessary change use.But not having main shaft to be provided to engage the main wheel 350 of wheelchair, load is distributed to whole support frame 320 substantially fifty-fifty, and wherein tie-beam 326 is by installing and be hinged to saddle portion on brace summer 328 by the power load distributing of seat unit 340.

As Figure 10 and Figure 11 is visible, in such configuration, take turns 350 to be connected to by axle/pin and to be arranged on steady pin receiving position portion 329A on beam 301 and 329B place respectively.The wheelchair support frame of this structure is provided with brakes 331 further, and brakes 331 is suitable for engaging wheel with the movement preventing its unintentional rotation from also therefore preventing wheelchair.Should be understood that the handle of brakes can be that required size is to allow corresponding disabled user to operate it.

Should be understood that, although do not illustrate according to other embodiments various of the wheelchair of disclosed theme and also it is contemplated that.Such as, seat unit only can comprise seat part and back part can be attached on support frame individually.Such as, back part can be the form with support component, and support component extends between supporting at two, and two supports are constructed to relative to seat surface to be vertical and to be attached to the rear portion of support frame.Such support component can be plastic plate, textile, rubber strip or cord or or even be filled with the metal vaulting pole of cushioning members.According to another embodiment, seat unit comprises seat part and hinged back part thereon.

Claims

1. a wheelchair, comprise: comprise the seat unit that the plastics of seat part are molded, two levels extended in parallel that described seat part is configured to be hinged on support frame are installed on brace summer, and described support frame is configured to bear the load be applied on described seat unit; A pair main wheel and at least one forward castor, described a pair main wheel is fixed to described support frame independently each via corresponding wheel shaft; And at least one is for controlling the brake assemblies of the operation of at least one in described main wheel.

2. wheelchair according to claim 1, wherein, described seat unit is the monomer-type one piece that plastics are molded.

3. wheelchair according to claim 1, wherein, described seat unit comprises back part.

4. wheelchair according to claim 1, wherein, described seat unit removably can be attached to the installation brace summer of solid support framework.

5. wheelchair according to claim 1, wherein, described seat unit can nestedly overlay same seat unit after described support frame disassembles.

6. wheelchair according to claim 1, wherein, described seat unit can along the length adjustment of described two brace summers, and described seat unit can the position of distance needed for the front end apart from described wheelchair support frame be hinged on described brace summer.

7. wheelchair according to claim 1, wherein, described seat unit comprises saddle mounting portion in its bottom side, and described saddle mounting portion is constructed to engage described installation brace summer.

8. wheelchair according to claim 1, wherein, described seat unit is constructed to snapably be hinged to described support frame.

9. wheelchair according to claim 1, also comprises and being arranged on from the foot support installation portion of corresponding brace summer respectively towards the free end of two parallel girders of downward-extension.

10. wheelchair according to claim 1, also comprise and be arranged on from the foot support installation portion of corresponding brace summer respectively towards the free end of two parallel girders of downward-extension, wherein, described foot support installation portion is the shape of roughly Ω shape, make the corresponding free end of described two parallel girders of each joint in two free ends of described foot support installation portion, and wherein, the middle body of described foot support installation portion is configured to receive foot support component.

11. wheelchairs according to claim 10, wherein, described foot support component can adjust to the required separation distance of the front end relative to described support frame along described installation portion.

12. wheelchairs according to claim 1, wherein, described support frame comprises two the trapezoidal arced configuration connected by least one tie-beam, and described at least one tie-beam extends in the plane lower than described level installation brace summer.

13. wheelchairs according to claim 12, wherein, described in plan view, support frame is in roughly U-shaped.

14. wheelchairs according to claim 1, wherein, described support frame by a continuous print, formed elongated beam components integers.

15. wheelchairs according to claim 1, wherein, the cross section of described support frame is circular.

16. wheelchairs according to claim 1, also comprise the handle that at least one is arranged at the rear side of described wheelchair.

17. 1 kinds of support frames, be configured to the load born on it, described support frame comprises two trapezoidal arced configuration, described two trapezoidal arced configuration comprise the level forming top base separately and install brace summer, described two trapezoidal arced configuration are connected by least one tie-beam, and described tie-beam is installed in the low plane of brace summer in the level more parallel than two and extended.

18. support frames according to claim 17, wherein, each back leg in described two trapezoidal arced configuration is suitable for engaging wheels, and wherein, the free end of each foreleg in described trapezoidal arced configuration is suitable for engaging front-wheel.