CN102755230B

CN102755230B - Electric wheel chair

Info

Publication number: CN102755230B
Application number: CN201210231218.9A
Authority: CN
Inventors: 沈文华
Original assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Current assignee: CHANGSHU PINGFANG WHEELCHAIR CO LTD
Priority date: 2012-07-05
Filing date: 2012-07-05
Publication date: 2014-07-23
Anticipated expiration: 2032-07-05
Also published as: CN102755230A

Abstract

An electric wheel chair belongs to an article for daily use and comprises a pedal, a cell box, a pair of front frames, a pair of rear frames, a chair seat, a chair back, a pair of armrests and an armrest locking mechanism; front axle seats are arranged on two sides of the front end of the pedal respectively, and rear axle seats are arranged on the two sides of the rear end respectively; the cell box is connected with the pair of rear axle seats; a left wheel motor and a right wheel motor are arranged in the cell box; a left traveling wheel is fixed on a left wheel motor shaft of the left wheel motor, and a right traveling wheel is fixed on a right wheel motor shaft of the right wheel motor; each front frame comprises a front direction wheel arm, a front frame arm and a folding mechanism; one end of each rear frame is hinged with the side part of the cell box, and the other end of each rear frame is connected with a rear frame connecting rod; rear universal wheel seats are fixed on the other end of each rear frames; rear universal wheels are arranged on the rear universal wheel seats; the chair seat is fixed on a chair seat bracket; the chair back is hinged with the chair seat; and a controller is arranged on one armrest and is in wireless fit with a controller host. The electric wheel chair has the advantages as follows: the size of the wheel chair can be reduced so that the wheel chair is convenient to store; the wheel chair is rotatable in-situ; the turning radius is small; and the wheel chair is comfortable and safe.

Description

Electric wheelchair

Technical field

the invention belongs to daily living article technical field, be specifically related to a kind of electric wheelchair.

Background technology

electric wheelchair claims again electric wheel-chair vehicle, is that special population is as disabled, old and weak, medical clinical rehabilitation patient's etc. walking-replacing tool.In published Chinese patent literature, is no lack of the technical information being seen in about electric wheelchair, " multifunctional electric wheelchair " (being four-wheel structure) of typically recommending as Granted publication CN2745544Y, although this patent scheme can be folding towards seat support direction by the chair back, and the direction by seat support towards base plate reclines, finally embodying non-use is the folding effect under collecting state.But the car body volume after folding is still huge, because a pair of front-wheel and pair of rear wheels and pedal cannot show the change in location state of following in sb's footsteps while folding with car body.

" keeping away barrier electric wheel-chair vehicle " that Granted publication CN201379725Y provides is although have the 4th section of alleged technique effect of Instructions Page 2, but, only can be drawn close by two side direction middle parts when folding, therefore the height of the carbody after folding and the height under using state do not change, thereby make equally the volume after folding be not easy to greatly collection keeping, and carry trouble.There is equally the described shortcoming of CN201379725Y in " electric wheel-chair vehicle " that " multifunctional electric wheelchair " that CN101589979B introduces and CN201684098U disclose.

Summary of the invention

task of the present invention is to provide a kind of and contributes to embody good folding effect and reduced volume and save space while using in collection keeping and be conducive to embody excellent stationarity and use and ensure comfortable and safe electric wheelchair significantly after folding.

task of the present invention completes like this, a kind of electric wheelchair, comprise a pedal, in the both sides of this pedal front end and in position to correspond to each other, each forms a front axle bed, and in the both sides of rear end and equally in position to correspond to each other, each forms and has a rear axle bed, one battery case, this battery case and described a pair of rear axle bed are pivotally connected, and in this battery case, be provided with a revolver motor and a right turbin generator, the revolver motor axle of revolver motor is stretched over outside battery case and is fixed with a left lateral travelling wheel, and the right turbin generator axle of right turbin generator is stretched over outside battery case and be fixed with a right lateral travelling wheel, structure a pair of front frame identical and that position corresponds to each other, each front frame comprises front universal wheel arm, front truck boom and fold mechanism, the lower end of front universal wheel arm and described front axle bed are hinged, and be fixed with a front castor base, at front castor base head lamp brush guard pivot, be provided with a front universal wheel, one end of the upper end of front universal wheel arm and front truck boom is hinged, by arm axle, pivot is arranged on described battery case the other end of front truck boom, wherein: on front truck boom, be fixed with a seat bracket, fold mechanism is hinged between described front universal wheel arm and described front truck boom, the described fold mechanism of one of them front frame in a pair of front frame is connected with one end of folding pull rod, the fold mechanism of another front frame in a pair of front frame is connected with the other end of folding pull rod, a pair of structure rear vehicle frame identical and that position corresponds to each other, this sidepiece to one end of rear vehicle frame and described battery case is hinged, and the other end is connected by rear vehicle frame connecting rod, and be fixed with a rear castor base at this other end, on rear castor base, be provided with rotationally a rear universal wheel, one seat support, this chair base supporting is fixed on described seat bracket, one chair back, this chair back and described seat support are hinged, pair of armrests and a handrail locking mechanism, to handrail, each is fixed with the upper end of handrail supporting slider for this, the lower end of handrail supporting slider is connected with handrail locking mechanism, and handrail locking mechanism is fixed on described seat bracket, wherein: appointing in described pair of armrests selects on a handrail and be provided with one for controlling described revolver motor and the controller of right turbin generator work, this controller and wireless cooperation of controller main frame that is arranged on below top and that be positioned at described seat support of described battery case.

in a specific embodiment of the present invention, described pedal has a pedal framework, and described front axle bed and rear axle bed are formed in the sidepiece of pedal framework, and the material of pedal is carbon fiber.

in another specific embodiment of the present invention, on described front axle bed, be provided with a front running board axle, described front castor base is connected with this front running board axle, described rear axle bed is provided with a bumper step axle, the bottom of described battery case and form and have battery case pivotal block in position corresponding to described rear axle bed, battery case pivotal block and described bumper step axle are pivotally connected, wherein: battery case adopts carbon fibre material to make.

in another specific embodiment of the present invention, described fold mechanism comprises first connecting rod and second connecting rod, the middle part handing-over of one end of first connecting rod and described front universal wheel arm, the other end and described folding pull rod are hinged, one end of second connecting rod and folding pull rod are hinged and coaxially hinged with the described other end of described first connecting rod, and the other end of second connecting rod and described front truck boom are hinged, wherein: the described other end of described front universal wheel arm is hinged by described one end of front universal wheel arm pivot and described front truck boom.

in another specific embodiment of the present invention, at described battery case, towards the two ends of a side of described rear vehicle frame connecting rod, be respectively connected with an acting cylinder, this acting cylinder is also connected with described rear vehicle frame connecting rod.

of the present invention, also have in a specific embodiment, described acting cylinder is air spring cylinder.

more of the present invention and in a specific embodiment, at the sidepiece at the two ends of described battery case and be respectively fixed with a semiaxis in the position of the rear vehicle frame corresponding to described, and form in one end of rear vehicle frame, there is a rear vehicle frame connecting bushing, this rear vehicle frame connecting bushing is nested with on semiaxis, wherein: the shape of rear vehicle frame is the L shaped of English alphabet.

in of the present invention and then a specific embodiment, below described seat support, be equipped with a workbox, this workbox and described seat bracket are fixed, and described controller main frame is positioned at the below in workbox.

of the present invention again more and in a specific embodiment, described seat support and the framework material of the described chair back are carbon fiber.

in again of the present invention and then a specific embodiment, described handrail locking mechanism comprises a holder and a location-plate, holder and described seat bracket are fixed, location-plate is connected with holder, this location-plate has a handrail supporting slider sliding tray towards a side formation of described handrail supporting slider, the described lower end of handrail supporting slider and this handrail supporting slider sliding tray are slidably matched, and the side at location-plate offers a lock hole, on lock hole, be equipped with one for the lock screw to the locking of handrail supporting slider or release.

technical scheme provided by the invention is configured to four connecting rod relations by front universal wheel arm, battery case, front truck boom and pedal between this, and fold mechanism and front universal wheel arm and front truck boom form again the four connecting rod relations of self, thereby can conveniently fold and reduced volume and be convenient to collection significantly after folding; Owing to also thering is a pair of front universal wheel, a pair of rear universal wheel except thering is left and right road wheel, thereby form six wheel constructions, there is the strong point that original place is rotatable and radius of turn is little and there is comfortable and safe effect.

Accompanying drawing explanation

fig. 1 is embodiments of the invention structure chart.

fig. 2 is the side view of Fig. 1.

fig. 3 is the schematic diagram of the present invention in folding process.

fig. 4 is the schematic diagram of the present invention in folding rear collecting state.

The specific embodiment

for the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but to the description of embodiment, be not all the restriction to the present invention program, any according to the present invention design, done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.

refer to Fig. 1 and Fig. 2, provided a pedal 1, this pedal 1 has pedal framework 13, in the edge of the front side of this pedal framework 13 and in position to correspond to each other, each forms a front axle bed 11, on this front axle bed 11, be equipped with a front running board axle 111(and also can claim front running board bearing pin), in the edge of the rear side of pedal framework 13 and equally in position to correspond to each other, each forms and has a rear axle bed 12, each rear axle bed 12 is provided with a bumper step axle 121(and also can claims bumper step bearing pin), the material of pedal 1 is carbon fiber, carbon fiber has desirable intensity, there is again the feature that deal is light, for electric wheelchair, weight reduction is the direction that current industry is pursued, because weight is more more easy to carry, the battery case 2 that also will mention below, seat support 5 and the chair back 6 are owing to having used equally carbon fiber, therefore can make the overall weight of electric wheelchair significantly reduce.

the battery case 2 providing also can be described as battery holder, at the two ends of the bottom of the length direction of this battery case 2 and in the position corresponding to aforesaid rear axle bed 12, each forms a battery case pivotal block 23, and this battery case pivotal block 23 is pivotally connected with aforesaid bumper step axle 121.One revolver motor 21 and a right turbin generator 22 are installed in battery case 2, the revolver motor axle 211 of revolver motor 21 is stretched over or claims to lean out outside battery case 2, and be fixed with a left lateral travelling wheel 2111, and the right turbin generator axle 221 of right turbin generator 22 is stretched over outside battery case 2 equally, and be fixed with a right lateral travelling wheel 2211.Each is fixed with a rear vehicle frame semiaxis 25 with level the sidepiece at the two ends of this external battery case 2.Preferably, below corresponding to rear vehicle frame semiaxis 25, be fixed with a mud guard 26, take location status shown in Fig. 1 as example, and the mud guard 26 on the left side is corresponding to the top of aforesaid left lateral travelling wheel 2111, and the mud guard 26 on the right is corresponding to the top of aforesaid right lateral travelling wheel 2211.

as shown in Figure 1, the structure of a pair of front frame 3 providing is mutually the same, and installation site keeps mutual corresponding relation, each front frame 3 comprises front universal wheel arm 31, front truck boom 32 and fold mechanism 33, front running board axle 111 on the lower end of front universal wheel arm 31 and aforesaid front axle bed 11 is pivotally connected, and be fixed with a front castor base 311, on front castor base 311, be provided with rotationally a front universal wheel 3111.The upper end of front universal wheel arm 31 is hinged with one end of front truck boom 32 by front universal wheel arm pivot 312, thereby make the upper end of this front universal wheel arm 31 and front truck boom 32 form articulated hinged relationship, the other end of front truck boom 32 is connected on aforesaid battery case 2 by arm axle 321, specifically: arm axle 321 is located at arm axle seat 3211, and arm axle seat 3211 is located at (Fig. 2 and Fig. 3 show) on battery case 2.In addition, on the rear front truck boom 32 of a pair of front frame 3, be respectively fixed with a seat bracket 322, as shown in Figure 1, the shape size of a pair of seat bracket 322 is identical and correspond to each other.As aforementioned, because front frame 3 has a pair of, therefore aforesaid fold mechanism 33 has a pair of of same structure, each fold mechanism 33 comprises a first connecting rod 331 and a second connecting rod 332, one end of first connecting rod 331 is hinged with the swivel pin axle bed 313 being fixed on front universal wheel arm 31 by hinging pin shaft 3311 towards one end of aforesaid front universal wheel arm 31, and the other end of first connecting rod 331 is hinged towards one end of second connecting rod 332 and one end of folding pull rod 34, and described one end of second connecting rod 332 and the described other end of first connecting rod 331 are hinged with one end of coaxial manner and folding pull rod 34, the other end of second connecting rod 332 is hinged by the swivel pin axle bed on folding hinging pin shaft and aforesaid front truck boom 32 equally, first of the other end of folding pull rod 34 and another fold mechanism 33, second connecting rod 331, 332 is coaxially hinged.

as shown in the above description, because aforesaid scooter 21, front universal wheel arm 31, front truck boom 32 and battery case 2 relation between this is configured to the structural relation of four connecting rods, due to first, second connecting rod 331,332 and front universal wheel arm 31 and front truck boom 32, form again the relation (Fig. 3 shows) of four connecting rods, therefore, when dragging to draw when folding pull rod 34 folds, can embody folding effect efficiently, and after folding remarkable reduced volume and be convenient to collect (Fig. 4 shows).

the rear vehicle frame 4 providing has a pair of and geometry of same structure to be all the L shaped of English alphabet or claims to be 7 fonts of Arabic numerals, after each, one end of vehicle frame 4 forms and has a rear vehicle frame connecting bushing 43 towards one end of aforesaid battery case 2, this rear vehicle frame connecting bushing 43 is nested with on aforesaid rear vehicle frame semiaxis 25, and lower end is fixedly connected with and is fixed with a rear castor base 42 with one end of rear vehicle frame connecting rod 41, on rear castor base 42, be provided with rotationally a rear universal wheel 421, the other end of aforesaid rear vehicle frame connecting rod 41 is fixedly connected with another the rear vehicle frame 4 in a pair of rear vehicle frame 4.

shown in figure, at aforesaid battery case 2, towards the two ends of a side of rear vehicle frame connecting rod 41, be respectively equipped with an acting cylinder 24, and each acting cylinder 24 is also connected with rear vehicle frame connecting rod 41, acting cylinder 24 is air spring cylinder, plays the Stabilization to rear vehicle frame connecting rod 41.

illustrated seat support 5 is fixing with aforesaid a pair of seat bracket 322 by chair seat board 52,, between a pair of seat bracket 322, comprises that the seat support skeleton material used of chair seat board 52 is carbon fiber.Below seat support 5, be equipped with a workbox 51, workbox 51 is drawer type structure and fixing with seat bracket 322.The chair back 6 is by the chair back plate 61 made by carbon fibre material and hinged by means of pivotal axis 611 and aforesaid chair seat board 52.Hence one can see that, and the chair back 6 both can be amounted to into the state shown in Fig. 4 towards the direction of seat support 5, can pull the using state of opening up to shown in Fig. 1 and Fig. 2 towards the direction that deviates from seat support 5 again.

the pair of armrests 7 providing is corresponding to the both sides of seat support 5, below each handrail 7, towards a side of handrail supporting slider 71, be respectively fixed with a handrail pipe support 73, by this handrail pipe support 73, handrail 7 and the upper end of handrail supporting slider 71 are fixed, and the lower end of handrail supporting slider 71 and handrail locking mechanism 8 are slidably matched.At the present embodiment, controller 72 has been arranged on a handrail 7 on the left side in pair of armrests 7, but also can be arranged on a handrail 7 on the right, for example, for left-handed crowd, preferably controller 72 is arranged on the handrail 7 on the right of location status shown in Fig. 1, vice versa.This controller 72 is connected with controller main frame 9 controlled in wireless that are arranged on the below of seat support 5 or claims remote control to connect, to give aforesaid left and right turbin generator 21,22 by controller main frame 9 by the signal feedback that receives controller 72, that is to say, left and right turbin generator 21,22 is connected with 9 electrical controls of controller main frame.

aforesaid handrail locking mechanism 8 preferably but not the structure being definitely limited to is as follows: comprise a holder 81 and a location-plate 82, holder 81 is screwed on aforesaid seat bracket 322, and location-plate 82 use screws 823 are fixing with holder 81, because the shape of cross section of this location-plate 81 takes the shape of the letter U, thereby form and have a handrail supporting slider sliding tray 821 in the side towards handrail supporting slider 71, the lower end of handrail supporting slider 71 and this handrail supporting slider sliding tray 821 are slidably matched.A side at location-plate 82 offers a screw hole 822, and is equipped with a lock screw 8221 on this screw hole 822.When state in being slidingly fitted with handrail supporting slider sliding tray 821 of the lower end of handrail supporting slider 71, and lock screw 8221 is revolved and during to the degree of contact handrail supporting slider 71,, to 71 lockings of handrail supporting slider, vice versa.

as shown in the above description, left and right road wheel 2111,2211, a pair of front universal wheel 311 and a pair of rear universal wheel 421 formed six wheel constructions of electric wheelchair of the present invention, thereby showed not only ultimate attainmently, can original place rotates but also can reduce turning radius and smooth running and safe technique effect.

refer to Fig. 3 and Fig. 4, the concise and to the point narration of applicant is of the present invention folding, while needing collection in the present invention in non-working condition, first remove the locking to handrail supporting slider 71, the chair back 6 is amounted to towards the direction of seat support 5, by dragging, draw aforesaid folding pull rod 34 again, now under the first connecting rod 331 of fold mechanism 33 and the synergism of second connecting rod 332, make front universal wheel arm 31 present state as shown in Figure 3 together with pedal 1, until be folded to front universal wheel arm 31 with front truck boom 32 in the limit state shown in Fig. 4, make the chair back, seat support 5, battery case 2 and pedal 1 are top-down superimposed relationship, therefore volume compression effect is very good, be convenient to dwindle and take up room.

Claims

1. a kind of electric wheelchair, it is characterized in that comprising a pedal (1), in the both sides of this pedal (1) front end and in position to correspond to each other, each forms a front axle bed (11), and in the both sides of rear end and equally in position to correspond to each other, each forms and has a rear axle bed (12), one battery case (2), this battery case (2) is pivotally connected with described a pair of rear axle bed (12), and in this battery case (2), be provided with a revolver motor (21) and a right turbin generator (22), the revolver motor axle (211) of revolver motor (21) is stretched over outside battery case (2) and is fixed with a left lateral travelling wheel (2111), and the right turbin generator axle (221) of right turbin generator (22) is stretched over outside battery case (2) and be fixed with a right lateral travelling wheel (2211), structure a pair of front frame identical and that position corresponds to each other (3), each front frame (3) comprises front universal wheel arm (31), front truck boom (32) and fold mechanism (33), the lower end of front universal wheel arm (31) and described front axle bed (11) are hinged, and be fixed with a front castor base (311), at front castor base (311) head lamp brush guard pivot, be provided with a front universal wheel (3111), one end of the upper end of front universal wheel arm (31) and front truck boom (32) is hinged, by arm axle (321), pivot is arranged on described battery case (2) other end of front truck boom (32), wherein: on front truck boom (32), be fixed with a seat bracket (322), fold mechanism (33) is hinged between described front universal wheel arm (31) and described front truck boom (32), the described fold mechanism (33) of one of them front frame (3) in a pair of front frame (3) is connected with one end of folding pull rod (34), the fold mechanism (33) of another front frame (3) in a pair of front frame (3) is connected with the other end of folding pull rod (34), a pair of structure rear vehicle frame identical and that position corresponds to each other (4), this sidepiece to one end of rear vehicle frame (4) and described battery case (2) is hinged, and the other end is connected by rear vehicle frame connecting rod (41), and at this other end, be fixed with a rear castor base (42), on rear castor base (42), be provided with rotationally a rear universal wheel (421), one seat support (5), this seat support (5) supporting is fixed on described seat bracket (322), one chair back (6), this chair back (6) is hinged with described seat support (5), pair of armrests (7) and a handrail locking mechanism (8), to handrail (7), each is fixed with the upper end of handrail supporting slider (71) for this, the lower end of handrail supporting slider (71) is connected with handrail locking mechanism (8), and handrail locking mechanism (8) is fixed on described seat bracket (322), wherein: appointing in described pair of armrests (7) selects on a handrail (7) and be provided with one for controlling the controller (72) of described revolver motor (21) and right turbin generator (22) work, this controller (72) and wireless cooperation of controller main frame (9) that is arranged on below top and that be positioned at described seat support (5) of described battery case (2), described fold mechanism (33) comprises first connecting rod (331) and second connecting rod (332), the middle part of one end of first connecting rod (331) and described front universal wheel arm (31) is hinged, the other end and described folding pull rod (34) are hinged, one end of second connecting rod (332) and folding pull rod (34) are hinged and coaxially hinged with the described other end of described first connecting rod (331), and the other end of second connecting rod (332) and described front truck boom (32) are hinged, wherein: the described upper end of described front universal wheel arm (31) is hinged with described one end of described front truck boom (32) by front universal wheel arm pivot (312).

2. electric wheelchair according to claim 1, it is characterized in that described pedal (1) has a pedal framework (13), described front axle bed (11) and rear axle bed (12) are formed in the sidepiece of pedal framework (13), and the material of pedal (1) is carbon fiber.

3. electric wheelchair according to claim 1, it is characterized in that being provided with a front running board axle (111) on described front axle bed (11), described front castor base (311) is connected with this front running board axle (111), described rear axle bed (12) is provided with a bumper step axle (121), the bottom of described battery case (2) and form and have battery case pivotal block (23) in position corresponding to described rear axle bed (12), battery case pivotal block (23) is pivotally connected with described bumper step axle (121), wherein: battery case (2) adopts carbon fibre material to make.

4. electric wheelchair according to claim 1, it is characterized in that towards the two ends of a side of described rear vehicle frame connecting rod (41), being respectively connected with an acting cylinder (24) at described battery case (2), this acting cylinder (24) is also connected with described rear vehicle frame connecting rod (41).

5. electric wheelchair according to claim 4, is characterized in that described acting cylinder (24) is air spring cylinder.

6. electric wheelchair according to claim 1, it is characterized in that at the sidepiece at the two ends of described battery case (2) and be respectively fixed with a semiaxis (25) in the position of the rear vehicle frame (4) corresponding to described, and form in one end of rear vehicle frame (4), there is a rear vehicle frame connecting bushing (43), this rear vehicle frame connecting bushing (43) is nested with at semiaxis (25) upper, wherein: the shape of rear vehicle frame (4) is the L shaped of English alphabet.

7. electric wheelchair according to claim 1, it is characterized in that being equipped with a workbox (51) in the below of described seat support (5), this workbox (51) is fixing with described seat bracket (322), and described controller main frame (9) is positioned at the below of workbox (51).

8. electric wheelchair according to claim 1, is characterized in that described seat support (5) and the framework material of the described chair back (6) are carbon fiber.

9. electric wheelchair according to claim 1, it is characterized in that described handrail locking mechanism (8) comprises a holder (81) and a location-plate (82), holder (81) is fixing with described seat bracket (322), location-plate (82) is connected with holder (81), this location-plate (82) has a handrail supporting slider sliding tray (821) towards a side formation of described handrail supporting slider (71), the described lower end of handrail supporting slider (71) and this handrail supporting slider sliding tray (821) are slidably matched, and the side at location-plate (82) offers a lock hole (822), on lock hole (822), be equipped with one for the lock screw (8221) to handrail supporting slider (71) locking or release.