CN102755230A

CN102755230A - Electric wheel chair

Info

Publication number: CN102755230A
Application number: CN2012102312189A
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: 2012-10-31
Anticipated expiration: 2032-07-05
Also published as: CN102755230B

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

Background technology

electric wheelchair is claimed electric wheel-chair vehicle again, is the walking-replacing tool of special population like disabled, old and weak, medical clinical rehabilitation patient etc.In disclosed Chinese patent document, is no lack of the technical information that is seen in about electric wheelchair; " multifunctional electric wheelchair " (being the four-wheel structure) of typically recommending like Granted publication CN2745544Y; Though this patent scheme can be folding towards the seat support direction with the chair back; And the direction of seat support towards base plate reclined, and finally embodying non-use is the folding effect under the 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 can't show the change in location state of following in sb's footsteps when folding with car body.

" keeping away the barrier electric wheel-chair vehicle " that Granted publication CN201379725Y provides is though have the 4th section alleged technique effect of Instructions Page 2; But; Owing to only can draw close when folding by two side direction middle part; Therefore height of the carbody after folding and the height under the user mode do not change, thereby make the volume after folding be not easy to the collection keeping greatly equally, and carry trouble.There is the said shortcoming of CN201379725Y equally in " electric wheel-chair vehicle " that " multifunctional electric wheelchair " that CN101589979B introduces and CN201684098U disclose

Summary of the invention

task of the present invention be to provide a kind of help to embody good folding effect and after folding significantly reduced volume and when using in the collection keeping conserve space use with helping embodying excellent stationarity and ensure electric wheelchair comfortable and safety.

task of the present invention is accomplished like this; A kind of electric wheelchair; Comprise a pedal, axle bed in the both sides of this pedal front end and before the position to correspond to each other respectively constitutes, and in the both sides of rear end and respectively constitute a back axle bed equally in the position to correspond to each other; One battery case; This battery case and described a pair of back axle bed pivotal connection; 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 the 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 the battery case and be fixed with a right lateral travelling wheel; Identical and a pair of front frame that the position corresponds to each other of structure; Each front frame comprises preceding steering wheel arm, front truck boom and fold mechanism; The lower end of preceding steering wheel arm and described preceding axle bed are hinged, and universal wheel seat before being fixed with, universal wheel before the universal wheel seat head lamp brush guard pivot of pro-is provided with; The upper end of preceding universal wheel arm and an end of front truck boom are hinged; Pivot is arranged on the described battery case, wherein the other end of front truck boom through arm axle: on the front frame arm, be fixed with a seat bracket, fold mechanism is hinged between said preceding universal wheel arm and the described front truck boom; The said fold mechanism of one of them front frame in a pair of front frame is connected with an end of folding pull rod, and the fold mechanism of another front frame in a pair of front frame is connected with the other end of folding pull rod; Identical and the back vehicle frame that the position corresponds to each other of a pair of structure; This sidepiece to an end and the described battery case of back vehicle frame is hinged; And the other end is connected by back vehicle frame connecting rod, and is fixed with the universal wheel seat in a back at this other end, on the universal wheel seat in back, is provided with a back universal wheel rotationally; One seat support, this chair base supporting are fixed on the described seat bracket; One chair back, this chair back and said seat support are hinged; A pair of armrests and a handrail locking mechanism; Each is fixed with the upper end that handrail supports slide bar to handrail for this; The lower end that handrail supports slide bar is connected with the handrail locking mechanism; And the handrail locking mechanism is fixed on the described seat bracket; Wherein: appointing in the described pair of armrests select a handrail be provided with one be used to control described revolver motor and right turbin generator work controller, the wireless cooperation of controller main frame of this controller and the top that is arranged on said battery case and below that be positioned at said seat support.

in a concrete embodiment of the present invention, described pedal has a pedal framework, and described preceding axle bed and back axle bed are formed in the sidepiece of pedal framework, and the material of pedal is a carbon fiber.

are in another concrete embodiment of the present invention; Before described, be provided with a front running board axle on the axle bed; Universal wheel seat is connected with this front running board axle before described, and described back axle bed is provided with a bumper step axle, the bottom of described battery case and constituting the battery case pivotal block in the position corresponding to said back axle bed; Battery case pivotal block and described bumper step axle pivotal connection, wherein: battery case adopts carbon fibre material to make.

are in another concrete 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 said preceding universal wheel arm; The other end and described folding pull rod are hinged; One end of second connecting rod and folding pull rod is hinged and coaxial hinged with the said other end of said first connecting rod, and the other end of second connecting rod and described front truck boom are hinged, wherein: the said other end of universal wheel arm is hinged through a said end of preceding universal wheel arm pivot and described front truck boom before described.

respectively are connected with an acting cylinder at the two ends of described battery case one side of vehicle frame connecting rod towards described back in another concrete embodiment of the present invention, this acting cylinder also is connected with said back vehicle frame connecting rod.

also have among the concrete embodiment of the present invention, and described acting cylinder is the air spring cylinder.

are more of the present invention and among concrete embodiment; Respectively be fixed with a semiaxis at the sidepiece at the two ends of described battery case and in position corresponding to described back vehicle frame; One end of vehicle frame constitutes a back vehicle frame connecting bushing and in the back; This back vehicle frame connecting bushing is nested with on semiaxis, wherein: the shape of back vehicle frame is the L shaped of English alphabet.

are equipped with a workbox below described seat support in of the present invention and then concrete embodiment, 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 among concrete embodiment, the framework material of the described seat support and the said chair back is a carbon fiber.

are in again of the present invention and then concrete 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, and this location-plate constitutes handrail support slide bar sliding tray towards the side that said handrail supports slide bar, and said lower end and this handrail support slide bar sliding tray that handrail supports slide bar are slidingly matched; And the side at location-plate offers a lock hole, on lock hole, be equipped with one be used for handrail is supported slide bar locking or release lock screw.

technical scheme provided by the invention constitutes four connecting rods relation between this by preceding universal wheel arm, battery case, front truck boom and pedal; And fold mechanism and preceding universal wheel arm and front truck boom form the four connecting rods relation of self again, thereby can conveniently fold and reduced volume and be convenient to collect significantly after folding; Owing to except that having left and right road wheel, also have a pair of preceding universal wheel, a pair of back universal wheel, thereby constitute six wheel constructions, have the strong point that the original place is rotatable and radius of turn is little and have effect comfortable and safety.

Description of drawings

Fig. 1 is the embodiments of the invention structure chart.

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

Fig. 3 is in the sketch map in the folding process for the present invention.

The sketch map of Fig. 4 folding back collecting state for the present invention is in.

The specific embodiment

can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not 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 regarded as technical scheme category of the present invention.

see also Fig. 1 and Fig. 2, have provided a pedal 1, and this pedal 1 has pedal framework 13; Axle bed 11 in the edge of the front side of this pedal framework 13 and before the position to correspond to each other respectively constitutes one; On this preceding axle bed 11, be equipped with a front running board axle 111 (also can claim the front running board bearing pin), in the edge of the rear side of pedal framework 13 and respectively constitute a back axle bed 12 equally in the position to correspond to each other, each back axle bed 12 is provided with a bumper step axle 121 (also can claim the bumper step bearing pin); The material of pedal 1 is a carbon fiber; Carbon fiber has ideal intensity, has the light characteristics of deal again, for electric wheelchair; Weight reduction is the direction that present industry is pursued; Because weight gently then is easy to carry more more, therefore the battery case 2 that also will mention below, seat support 5 and the chair back 6 can make the overall weight of electric wheelchair significantly reduce owing to used carbon fiber equally.

The battery case 2 that provide also can be described as battery holder; Respectively constituting a battery case pivotal block 23, this battery case pivotal block 23 and aforesaid bumper step axle 121 pivotal connections at the two ends of the bottom of the length direction of this battery case 2 and in position corresponding to aforesaid back axle bed 12.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 the 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 the battery case 2 equally, and is fixed with a right lateral travelling wheel 2211.Each is fixed with a back vehicle frame semiaxis 25 with level the sidepiece at the two ends of this external battery case 2.Preferably; Below corresponding to back vehicle frame semiaxis 25, be fixed with a dashboard 26; With location status shown in Figure 1 is example, and the dashboard 26 on the left side is corresponding to the top of aforesaid left lateral travelling wheel 2111, and the dashboard 26 on the right is corresponding to the top of aforesaid right lateral travelling wheel 2211.

are by shown in Figure 1; The structure of a pair of front frame 3 that provides is mutually the same; And the installation site keeps mutual corresponding relation, and each front frame 3 comprises preceding universal wheel arm 31, front truck boom 32 and fold mechanism 33, front running board axle 111 pivotal connections on the lower end of preceding universal wheel arm 31 and the aforesaid preceding axle bed 11; And universal wheel seat 311 before being fixed with is provided with a preceding universal wheel 3111 rotationally on the universal wheel seat 311 of pro-.The upper end of preceding universal wheel arm 31 is hinged with an end of front truck boom 32 through preceding universal wheel arm pivot 312; Thereby make the upper end of this preceding universal wheel arm 31 and front truck boom 32 form articulated hinged relationship; The other end of front truck boom 32 is connected on the aforesaid battery case 2 through 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 the battery case 2.In addition, on the back front truck boom 32 of a pair of front frame 3, respectively be fixed with a seat bracket 322, by shown in Figure 1, the shape of a pair of seat bracket 322 size 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 promptly before aforesaid an end of universal wheel arm 31 through hinging pin shaft 3311 be fixed on before swivel pin axle bed 313 on the universal wheel arm 31 hinged; And the other end of first connecting rod 331 is promptly hinged towards an end of end of second connecting rod 332 and folding pull rod 34; And a said end of second connecting rod 332 and the said other end of first connecting rod 331 are hinged with an end of coaxial manner and folding pull rod 34, and the other end of second connecting rod 332 is hinged through the swivel pin axle bed on folding hinging pin shaft and the aforesaid front truck boom 32 equally, and the other end of folding pull rod 34 is coaxial hinged with first, second connecting rod 331,332 of another fold mechanism 33.

can be known by above-mentioned explanation; Because aforesaid scooter 21, preceding universal wheel arm 31, front truck boom 32 and battery case 2 relation between this constitutes the structural relation of four connecting rods; Again because first, second connecting rod 331,332 and preceding universal wheel arm 31 and front truck boom 32 form the relation (Fig. 3 shows) of four connecting rods; Therefore; Can embody folding effect efficiently when dragging to draw when folding pull rod 34 folds, and after folding remarkable reduced volume and be convenient to collect (Fig. 4 shows).

The back vehicle frame 4 that provide has a pair of and geometry of same structure all to be the L shaped of English alphabet or claims to be 7 fonts of Arabic numerals; One end of each back vehicle frame 4 promptly constitutes a back vehicle frame connecting bushing 43 towards an end of aforesaid battery case 2; This back vehicle frame connecting bushing 43 is nested with on aforesaid back vehicle frame semiaxis 25; And the lower end is fixedly connected and is fixed with the universal wheel seat 42 in a back with an end of back vehicle frame connecting rod 41; Be provided with a back universal wheel 421 on the universal wheel seat 42 rotationally in the back, vehicle frame 4 is fixedly connected behind another in the other end of aforesaid back vehicle frame connecting rod 41 and a pair of back vehicle frame 4.

are by shown in the figure; Two ends in aforesaid battery case 2 one side of vehicle frame connecting rod 41 towards the back respectively are equipped with an acting cylinder 24; And each acting cylinder 24 also is connected with back vehicle frame connecting rod 41, and acting cylinder 24 is the air spring cylinder, plays the Stabilization to back vehicle frame connecting rod 41.

illustrated seat support 5 is fixed through chair seat board 52 and aforesaid a pair of seat bracket 322, promptly between a pair of seat bracket 322, comprises that the used material of seat support skeleton of chair seat board 52 is a 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 passes through by the chair back plate 61 of carbon fibre material making 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 state shown in Figure 4 towards the direction of seat support 5, again can be towards the direction that deviates from seat support 5 exhibition of pulling to user mode illustrated in figures 1 and 2.

The pair of armrests 7 that provide is corresponding to the both sides of seat support 5; A side that below each handrail 7, promptly supports slide bar 71 towards handrail respectively is fixed with a handrail pipe support 73; Through this handrail pipe support 73 handrail 7 and the upper end that handrail supports slide bar 71 are fixed, and the lower end and the handrail locking mechanism 8 of handrail support slide bar 71 are slidingly matched.At present embodiment; Controller 72 has been arranged on the handrail 7 on the left side in the pair of armrests 7; But also can be arranged on the 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 Figure 1, vice versa.This controller 72 is connected with controller main frame 9 controlled in wireless of the below that is arranged on seat support 5 or claims that remote control connects; Give aforesaid left and right turbin generator 21,22 so that will receive the signal feedback of controller 72 by controller main frame 9; That is to say that 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 that definitely is limited to is following: comprise a holder 81 and a location-plate 82; Holder 81 is screwed on aforesaid seat bracket 322; And location-plate 82 usefulness 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 constitute a handrail in a side that supports slide bar 71 towards handrail and support slide bar sliding tray 821, the lower end that handrail supports slide bar 71 is slidingly matched with this handrail support slide bar sliding tray 821.Side at location-plate 82 offers a screw hole 822, and on this screw hole 822, is equipped with a lock screw 8221.When the lower end that handrail supports slide bar 71 is in when supporting the state that slide bar sliding tray 821 is slidingly fitted with handrail, and lock screw 8221 revolved and when the contact handrail supports the degree of slide bar 71, then handrail is supported slide bar 71 and lock, vice versa.

can be known by above-mentioned explanation; Left and right road wheel 2111,2211, a pair of before universal wheel 311 and a pair of back universal wheel 421 formed six wheel constructions of electric wheelchair of the present invention, can the original place rotate but also can reduce turning radius and smooth running and safe technique effect thereby showed not only ultimate attainmently.

See also Fig. 3 and Fig. 4; The concise and to the point narration of applicant is of the present invention folding, is in non-working condition and when needing collection, at first removes the locking of handrail being supported slide bar 71 in the present invention; The chair back 6 is amounted to towards the direction of seat support 5; Draw aforesaid folding pull rod 34 through dragging again, this moment, universal wheel arm 31 appeared by state shown in Figure 3 together with pedal 1 before making under the synergism of first connecting rod of fold mechanism 33 331 and second connecting rod 332; Universal wheel arm 31 is in limit state shown in Figure 4 with front truck boom 32 before being folded to; Make the chair back, seat support 5, battery case 2 and pedal 1 be top-down superimposed relationship, so the volume compression effect is very good, is convenient to dwindle take up room

Claims

1. a kind of electric wheelchair; It is characterized in that comprising a pedal (1); Axle bed (11) in the both sides of this pedal (1) front end and before the position to correspond to each other respectively constitutes one, and in the both sides of rear end and respectively constitute a back axle bed (12) equally in the position to correspond to each other; One battery case (2); This battery case (2) and described a pair of back axle bed (12) pivotal connection; 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 the 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 the battery case (2) and be fixed with a right lateral travelling wheel (2211); Identical and a pair of front frame that the position corresponds to each other (3) of structure; Each front frame (3) comprises preceding steering wheel arm (31), front truck boom (32) and fold mechanism (33); The lower end of preceding steering wheel arm (31) and described preceding axle bed (11) are hinged; And universal wheel seat (311) before being fixed with; Universal wheel (3111) before the universal wheel seat of pro-(311) head lamp brush guard pivot is provided with one, an end of the upper end of preceding universal wheel arm (31) and front truck boom (32) is hinged, and pivot is arranged on the described battery case (2) other end of front truck boom (32) through arm axle (321); Wherein: on front frame arm (32), be fixed with a seat bracket (322); Fold mechanism (33) is hinged between said preceding universal wheel arm (31) and the described front truck boom (32), and the said fold mechanism (33) of one of them front frame (3) in a pair of front frame (3) is connected with an end of folding pull rod (34), and 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); Identical and the back vehicle frame that the position corresponds to each other (4) of a pair of structure; This sidepiece to an end and the described battery case (2) of back vehicle frame (4) is hinged; And the other end is connected by back vehicle frame connecting rod (41); And be fixed with a back universal wheel seat (42) at this other end, on the universal wheel seat in back (42), be provided with a back universal wheel (421) rotationally; One seat support (5), this seat support (5) supporting is fixed on the described seat bracket (322); One chair back (6), this chair back (6) is hinged with said seat support (5); A pair of armrests (7) and a handrail locking mechanism (8); Each is fixed with the upper end that handrail supports slide bar (71) to handrail (7) for this; The lower end that handrail supports slide bar (71) is connected with handrail locking mechanism (8); And handrail locking mechanism (8) is fixed on the described seat bracket (322); Wherein: appointing in the described pair of armrests (7) select a handrail (7) be provided with one be used to control described revolver motor (21) and right turbin generator (22) work controller (72), this controller (72) and wireless cooperation of controller main frame (9) top that is arranged on said battery case (2) and below that be positioned at said seat support (5).

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

3. electric wheelchair according to claim 1; It is characterized in that being provided with on the axle bed before described (11) a front running board axle (111); Universal wheel seat (311) is connected with this front running board axle (111) before described; Described back axle bed (12) is provided with a bumper step axle (121); The bottom of described battery case (2) and constituting battery case pivotal block (23) in position corresponding to said back axle bed (12), battery case pivotal block (23) and described bumper step axle (121) pivotal connection, wherein: battery case (2) adopts carbon fibre material to make.

4. electric wheelchair according to claim 1; It is characterized in that described fold mechanism (33) comprises first connecting rod (331) and second connecting rod (332); The middle part handing-over of one end of first connecting rod (331) and said preceding universal wheel arm (31); 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 coaxial hinged with the said other end of said first connecting rod (331); And the other end of second connecting rod (332) and described front truck boom (32) are hinged, and wherein: the said other end of universal wheel arm (31) is hinged with a said end of described front truck boom (32) through preceding universal wheel arm pivot (312) before described.

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

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

7. electric wheelchair according to claim 1; It is characterized in that respectively being fixed with a semiaxis (25) at the sidepiece at the two ends of described battery case (2) and in position corresponding to described back vehicle frame (4); And constitute a back vehicle frame connecting bushing (43) at an end of back vehicle frame (4); This back vehicle frame connecting bushing (43) is nested with on semiaxis (25), wherein: the shape of back vehicle frame (4) is the L shaped of English alphabet.

8. 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).

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

10. 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) constitutes handrail support slide bar sliding tray (821) towards the side that said handrail supports slide bar (71); The said lower end that handrail supports slide bar (71) is supported slide bar sliding tray (821) with this handrail and is slidingly matched, and offers a lock hole (822) in a side of location-plate (82), on lock hole (822), is equipped with one and is used for handrail supported that slide bar (71) locks or the lock screw (8221) of release