CN201481683U - Electric wheel chair - Google Patents
Electric wheel chair Download PDFInfo
- Publication number
- CN201481683U CN201481683U CN 200920170663 CN200920170663U CN201481683U CN 201481683 U CN201481683 U CN 201481683U CN 200920170663 CN200920170663 CN 200920170663 CN 200920170663 U CN200920170663 U CN 200920170663U CN 201481683 U CN201481683 U CN 201481683U
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- CN
- China
- Prior art keywords
- chair frame
- column
- connecting rod
- support arm
- electric wheelchair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an electric wheel chair which is invented for solving the problems in the prior art. The electric wheel chair consists of a chair frame and a chair body arranged on the chair frame; the two sides of the chair frame are respectively pivoted with steering wheels by a support; a connecting rod is arranged between the two steering wheels; the connecting rod is provided with a vertical column; the vertical column is provided with a steering vertical shaft; the lower end of the steering vertical shaft is provided with a shifting fork; the vertical column is arranged in the shifting fork; the steering vertical shaft is provided with a handle; the steering vertical shaft above the shifting fork is arranged in a sleeve which can rotate relative thereto; the sleeve is movably connected with the chair frame by a support arm; and the steering wheels rotate along with the vertical column under the operation of the handle and deflect by the drawing of the vertical column and the connecting rod under the limiting of the shifting fork. By operating the handle arranged at the front of the chair body, the steering vertical shaft rotates to drive the shifting fork arranged at the bottom part thereof to rotate, and the shifting fork drives the vertical column arranged therein to rotate around the steering vertical shaft, so that the two ends of the connecting rod respectively drive the supports of the two steering wheels to rotate and steer with simple operation and easy control.
Description
Technical field
This utility model relates to a kind of electric wheelchair.
Background technology
Existing operating grip generally is arranged on the armrest positions of wheelchair both sides, separate and be provided with, be difficult in the operating process controlling party to, and driving wheel and trailing wheel run trace be not on a line, because existing electric wheelchair generally adopts rear wheel drive, like this, be expert at when taking the air line, the moment of resistance is inconsistent cause by operating grip be difficult to controlling party to.
The utility model content
In order to overcome above-mentioned defective, the purpose of this utility model is to provide a kind of processing ease, is convenient to straight line moving, electric wheelchair simple in structure.
In order to achieve the above object, electric wheelchair of the present utility model, constitute by chair frame and the chair body that is arranged on the described chair frame, wherein chair frame bottom front both sides are articulated with deflecting roller by support respectively, be movably set with connecting rod between the described two deflecting roller supports, described connecting rod middle part is to being provided with column; Described column top is provided with kingpin, described kingpin lower end is provided with shift fork, described column is arranged in the described shift fork, described kingpin upper end is provided with handgrip, the part kingpin of described shift fork top is arranged in the axle sleeve of its rotation relatively, described axle sleeve is movably connected on the described chair frame by support arm, and described deflecting roller is deflecting by affecting of column and connecting rod under the qualification effect at described shift fork with the column rotation under the manipulation of described handgrip.
Wherein, described shift fork is specially the plate that an end is provided with " U " elongated slot, the described plate other end is connected with described kingpin bottom vertical fixing, and described column is arranged in described " U " elongated slot, and moves with the rotation of described kingpin at described " U " elongated slot.
Further, both sides, described chair frame rear end are respectively arranged with trailing wheel, and the driving wheel of wherein said chair frame both sides is corresponding consistent respectively with the trailing wheel position of the fulcrum.
Particularly, described rear axle is fixed on the described chair frame by connector respectively, described connector is specially two mutual vertically disposed first members and second member, wherein, described wheel shaft is arranged on described first member and the second member crossover sites, the described first member level is provided with forward, second member is provided with straight up, the first member front end is provided with first support arm to chair frame stud sides, second member upper end is provided with second support arm to chair frame stud sides, described first support arm and second arm end respectively with described chair frame column and the vertical vertical column that is arranged on backward on the described chair frame column on.
Wherein, described first member is specifically by preceding, after, a left side, right panel encloses puts the level frame formation that forms, before described, be provided with lateral partitions between the back plate, described level frame cross section is " day " font, left side between described dividing plate and the back plate, the right panel part extends upward the corresponding respectively left side that forms respectively, right connecting plate, described left and right connecting plates connects by horizontal plate on the top, form a longitudinal section and constitute second member for " U " shape extension that Open Side Down, wherein, described header board extends to form first support arm to chair frame stud sides side, and be provided with vertically-arranged concave arc plate forward at first arm end and cooperate with described chair frame column trailing flank and be connected by screw, described horizontal plate extends to form second support arm to chair frame stud sides side, and second arm end cooperate and be connected to being provided with the vertical post downside of vertical concave arc plate and described chair frame by screw, described rear axle be arranged on described dividing plate and afterwards between the plate before, on the back plate.
Further, described chair frame front end both sides outwards are respectively arranged with extension, and described extension outer end and described front-wheel support top articulate.
Wherein, described support arm is connected with the front end column of described chair frame by assembly, and described assembly comprises by first assembly of dowel fixes on described chair frame front end column and second assembly that is fixed on described arm end; Wherein first assembly is the first semi arch panel that inwall cooperates with described chair frame front end column lateral surface, at interval to being outside equipped with two first protuberances, described protuberance two ends upwards are respectively arranged with drift bolt to the described first semi arch panel outer surface along its length; Described second assembly is the second semi arch panel that inwall cooperates with described chair frame front end column lateral surface, the described second semi arch panel outer surface is along its length at interval to being outside equipped with two second protuberances that match with described first protuberance respectively, the described second protuberance two ends are respectively arranged with the through hole that matches with described drift bolt, described support arm is two, end correspondence respectively is arranged on described second protuberance middle part, relative lateral surface and the medial surface that is fixedly installed on described chair frame front end column respectively by pin radially of the described first semi arch panel with the second semi arch panel opening, the described first protuberance both ends intersect stackedly with the described second protuberance both ends respectively, and described drift bolt correspondence is arranged in the described through hole.
Particularly, be provided with cantilever on the described front-wheel support respectively backward, described cantilever rear end is to being provided with axle, and described connecting rod two ends are hinged on respectively on the described axle, and described connecting rod is provided with and makes the described connecting rod can be along collapsible locking device laterally folded and locking.
Wherein, described collapsible locking support pull bar is specially two sections first sleeve pipe and second sleeve pipes that connect by bearing pin, wherein be provided with telescopic shaft in the first telescopic joint end, the second telescopic joint end is provided with the internal orifice dimension axle sleeve suitable with described telescopic shaft, described telescopic shaft is connected in first sleeve pipe by spring, on the telescopic shaft to being outside equipped with dial axis, the corresponding circumferential slot that is provided with axial groove and is communicated with axial groove with the telescopic shaft position of first casing wall, dial axis Sliding Control telescopic shaft in axial groove and circumferential slot cooperates with axle sleeve or breaks away from.
Further, first sleeve pipe is connected with two pages of sheets of hinge respectively with second sleeve pipe, axle sleeve be arranged on the second telescopic joint page or leaf sheet on, be provided with the diameter hole suitable with corresponding telescopic shaft position on the first telescopic joint page or leaf sheet with described telescopic shaft.
Above-mentioned structure, by the handgrip of operation setting in chair body the place ahead, kingpin is rotated, the shift fork that drive is arranged on its bottom rotates, described shift fork makes the column that sets within it rotate around described kingpin, thereby makes the connecting rod two ends affect two deflecting roller supports to rotate respectively, implements go to action, simple to operate, control easily.
Description of drawings
Fig. 1 is this utility model perspective view.
Fig. 2 is the specific embodiment perspective view of this utility model connector.
Fig. 3 is the specific embodiment assembled state perspective view of this utility model assembly.
Fig. 4 is the first assembly perspective view among Fig. 3.
Fig. 5 is the second assembly perspective view among Fig. 3.
Fig. 6 is this utility model shift fork and axle sleeve specific embodiment perspective view.
Fig. 7 is the folding locking device specific embodiment master TV structure sketch map of this utility model.
Fig. 8 be among Fig. 7 A-A to the sectional structure sketch map.
Fig. 9 is the folding locking device specific embodiment reference state sketch map of this utility model.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is described in further detail.
Shown in Fig. 1-9, electric wheelchair of the present utility model, constitute by chair frame 1 and the chair body 2 that is arranged on the described chair frame, wherein chair frame bottom front both sides are articulated with deflecting roller 91 by support respectively, be movably set with connecting rod 4 between the described two deflecting roller supports 40, described connecting rod middle part is to being provided with column 5; Described column top is provided with kingpin 6, described kingpin lower end is provided with shift fork 7, described column is arranged in the described shift fork, described kingpin upper end is provided with handgrip 8, the part kingpin of described shift fork top is arranged in the axle sleeve 9 of its rotation relatively, described axle sleeve is movably connected on the described chair frame by support arm 80, and described deflecting roller is deflecting by affecting of column and connecting rod under the qualification effect at described shift fork with the column rotation under the manipulation of described handgrip.
Above-mentioned structure, by the handgrip of operation setting in chair body the place ahead, kingpin is rotated, the shift fork that drive is arranged on its bottom rotates, described shift fork makes the column that sets within it rotate around described kingpin, thereby makes the connecting rod two ends affect two deflecting roller supports to rotate relative to the chair frame around pivot end separately respectively, implements go to action, simple to operate, control easily.Above-mentioned structure, for the ease of wheelchair about the user, described kingpin is provided with folding locking device 96, and folded state is convenient to wheelchair up and down, and lock-out state is convenient to the user operation and is turned to.
Further, described shift fork 7 is specially the plate that an end is provided with " U " elongated slot, the described plate other end is connected with described kingpin bottom vertical fixing, and described column is arranged in described " U " elongated slot, and moves with the rotation of described kingpin at described " U " elongated slot.
The electric wheelchair of prior art, general two trailing wheels are separately positioned on the two deflecting rollers outside, in order to make the electric wheelchair can easier control straight line moving, both sides, described chair frame rear end are respectively arranged with trailing wheel 92, and the driving wheel of wherein said chair frame both sides is corresponding consistent respectively with trailing wheel fulcrum (touchdown point) position.
As first specific embodiment of the present utility model, by making trailing wheel consistent to inboard setting of chair frame respectively two trailing wheels with the driving wheel run trace, described rear axle is supported on the described chair frame by connector 97 respectively, described connector is specially two mutual vertically disposed first members 10 and second member 20, wherein, described wheel shaft is arranged on described first member and the second member crossover sites, the described first member level is provided with forward, second member is provided with straight up, the first member front end is provided with first support arm 11 to chair frame stud sides, second member upper end is provided with second support arm 21 to chair frame stud sides, described first support arm and second arm end respectively with described chair frame column and the vertical vertical column that is arranged on backward on the described chair frame column on.Particularly, described first member is specifically by preceding, after, a left side, right panel encloses puts the level frame formation that forms, before described, be provided with lateral partitions 13 between the back plate, described level frame cross section is " day " font, left side between described dividing plate and the back plate, the right panel part extends upward the corresponding respectively left side that forms respectively, right connecting plate, described left and right connecting plates connects by horizontal plate on the top, form a longitudinal section and constitute second member for " U " shape extension that Open Side Down, wherein, described header board extends to form first support arm to chair frame stud sides side, and be provided with vertically-arranged concave arc plate 12 forward at first arm end and cooperate with described chair frame column trailing flank and be connected by screw, described horizontal plate extends to form second support arm to chair frame stud sides side, and second arm end cooperate and be connected to being provided with the vertical post downside of vertical concave arc plate 22 and described chair frame by screw, described rear axle be arranged on described dividing plate and afterwards between the plate before, on the back plate.
As second specific embodiment of the present utility model, by with two driving wheels to chair frame arranged outside, and make driving wheel consistent with the trailing wheel run trace, and described chair frame front end both sides outwards are respectively arranged with extension, and described extension outer end and described front-wheel support top articulate.
As best specific embodiment of the present utility model, because described back wheel diameter is generally bigger, it is complicated to only depend on two trailing wheels to chair frame inboard structure to be set, so respectively by two trailing wheels are provided with and make driving wheel consistent with the trailing wheel run trace to chair frame arranged outside two driving wheels to the chair frame is inboard respectively.
Further, described support arm is connected with the front end column 95 of described chair frame by assembly, and described assembly comprises by pin 50 and is fixed on first assembly 31 on the described chair frame front end column and is fixed on second assembly 32 of described arm end; Wherein first assembly is the first semi arch panel that inwall cooperates with described chair frame front end column lateral surface, at interval to being outside equipped with two first protuberances 41, described protuberance two ends upwards are respectively arranged with drift bolt 33 to the described first semi arch panel outer surface along its length; Described second assembly is the second semi arch panel that inwall cooperates with described chair frame front end column lateral surface, the described second semi arch panel outer surface is along its length at interval to being outside equipped with two second protuberances 42 that match with described first protuberance respectively, the described second protuberance two ends are respectively arranged with the through hole 43 that matches with described drift bolt, described support arm is two, end correspondence respectively is arranged on described second protuberance middle part, relative lateral surface and the medial surface that is fixedly installed on described chair frame front end column respectively by pin radially of the described first semi arch panel with the second semi arch panel opening, the described first protuberance both ends intersect stackedly with the described second protuberance both ends respectively, and described drift bolt correspondence is arranged in the described through hole.Above-mentioned structure, by assembly with the described upright supports that turns on described chair frame, simple in structure, easy disassembling, disassemble described turn to column after, recover the original state of electric wheelchair, turn to by original operating grip control.
Further, for turning to flexibly, be provided with cantilever on the described front-wheel support respectively backward, described cantilever rear end is to being provided with axle, described connecting rod two ends are hinged on described axle respectively and upward (are specially described axle and are provided with bearing, described bearing outer ring is arranged on inside, described connecting rod two ends, also has other concrete articulated manner certainly), described connecting rod is provided with and makes the described connecting rod can be along collapsible locking device laterally folded and locking.Particularly, shown in Fig. 7-9, described collapsible locking support pull bar is specially two sections first sleeve pipe 71 and second sleeve pipes 72 that connect by bearing pin 70, wherein be provided with telescopic shaft 73 in the first telescopic joint end, the second telescopic joint end is provided with the internal orifice dimension axle sleeve 74 suitable with described telescopic shaft, described telescopic shaft is connected in first sleeve pipe by spring 75, on the telescopic shaft to being outside equipped with dial axis 76, the corresponding circumferential slot 78 that is provided with axial groove 77 and is communicated with axial groove with the telescopic shaft position of first casing wall, dial axis Sliding Control telescopic shaft in axial groove and circumferential slot cooperates with axle sleeve or breaks away from.Further, first sleeve pipe is connected with two pages of sheets of hinge respectively with second sleeve pipe, axle sleeve 74 be arranged on the second telescopic joint page or leaf sheet on, be provided with the diameter hole suitable with corresponding telescopic shaft position on the first telescopic joint page or leaf sheet with described telescopic shaft.
Above-mentioned structure, during use, collapsible locking device is opened, fixed the distance between two driving wheels, wheelchair is more stable in the process of walking, when need not or carry, collapsible locking device is folding, and seat and backrest can use soft shell fabric, are convenient to when electric wheelchair is placed or be mobile the chair frame be folded at width, it is less to take up room, and is convenient to cross over step or other barrier dislocations.
Telescopic shaft slides in the circumferential slot, and spring is compressed, and telescopic shaft is contracted in interior first pipe, and first sleeve pipe and second sleeve pipe rotate in the bearing pin junction, and front and back leg support spacing reduces, and wheelchair is folding; Dial axis slides in the axial groove, telescopic shaft slides to the axial groove end under the restoring force effect of spring, axle sleeve in telescopic shaft stretches out first sleeve pipe and is arranged on second sleeve pipe cooperates, at this moment, distance between first sleeve pipe and second sleeve pipe is fixed by telescopic shaft and axle sleeve, can not rotate around the hinged place, thus the distance between leg support before and after limiting.Stir dial axis and be the position of the folding support of may command pull bar, easy to use.
This utility model is not limited to above-mentioned embodiment, no matter do any variation on its shape or structure, every to utilize above-mentioned electric wheelchair all be a kind of distortion of the present utility model, all should think and drop within this utility model protection domain.
Claims (10)
1. electric wheelchair, be made of chair frame and the chair body that is arranged on the described chair frame, wherein chair frame bottom front both sides are articulated with deflecting roller by support respectively, it is characterized in that, be movably set with connecting rod between the described two deflecting roller supports, described connecting rod middle part is to being provided with column; Described column top is provided with kingpin, described kingpin lower end is provided with shift fork, described column is arranged in the described shift fork, described kingpin upper end is provided with handgrip, the part kingpin of described shift fork top is arranged in the axle sleeve of its rotation relatively, described axle sleeve is movably connected on the described chair frame by support arm, and described deflecting roller is deflecting by affecting of column and connecting rod under the qualification effect at described shift fork with the column rotation under the manipulation of described handgrip.
2. electric wheelchair as claimed in claim 1, it is characterized in that, described shift fork is specially the plate that an end is provided with " U " elongated slot, the described plate other end is connected with described kingpin bottom vertical fixing, described column is arranged in described " U " elongated slot, and moves with the rotation of described kingpin at described " U " elongated slot.
3. electric wheelchair as claimed in claim 1 or 2 is characterized in that both sides, described chair frame rear end are respectively arranged with trailing wheel, and the driving wheel of wherein said chair frame both sides is corresponding consistent respectively with the trailing wheel position of the fulcrum.
4. electric wheelchair as claimed in claim 3, it is characterized in that, described rear axle is fixed on the described chair frame by connector respectively, described connector is specially two mutual vertically disposed first members and second member, wherein, described wheel shaft is arranged on described first member and the second member crossover sites, the described first member level is provided with forward, second member is provided with straight up, the first member front end is provided with first support arm to chair frame stud sides, second member upper end is provided with second support arm to chair frame stud sides, described first support arm and second arm end respectively with described chair frame column and the vertical vertical column that is arranged on backward on the described chair frame column on.
5. electric wheelchair as claimed in claim 4, it is characterized in that, described first member is specifically by preceding, after, a left side, right panel encloses puts the level frame formation that forms, before described, be provided with lateral partitions between the back plate, described level frame cross section is " day " font, left side between described dividing plate and the back plate, the right panel part extends upward the corresponding respectively left side that forms respectively, right connecting plate, described left and right connecting plates connects by horizontal plate on the top, form a longitudinal section and constitute second member for " U " shape extension that Open Side Down, wherein, described header board extends to form first support arm to chair frame stud sides side, and be provided with vertically-arranged concave arc plate forward at first arm end and cooperate with described chair frame column trailing flank and be connected by screw, described horizontal plate extends to form second support arm to chair frame stud sides side, and second arm end cooperate and be connected to being provided with the vertical post downside of vertical concave arc plate and described chair frame by screw, described rear axle be arranged on described dividing plate and afterwards between the plate before, on the back plate.
6. as claim 3 or 4 or 5 described electric wheelchairs, it is characterized in that described chair frame front end both sides outwards are respectively arranged with extension, described extension outer end and described front-wheel support top articulate.
7. electric wheelchair as claimed in claim 6, it is characterized in that, described support arm is connected with the front end column of described chair frame by assembly, and described assembly comprises by first assembly of dowel fixes on described chair frame front end column and second assembly that is fixed on described arm end; Wherein first assembly is the first semi arch panel that inwall cooperates with described chair frame front end column lateral surface, at interval to being outside equipped with two first protuberances, described protuberance two ends upwards are respectively arranged with drift bolt to the described first semi arch panel outer surface along its length; Described second assembly is the second semi arch panel that inwall cooperates with described chair frame front end column lateral surface, the described second semi arch panel outer surface is along its length at interval to being outside equipped with two second protuberances that match with described first protuberance respectively, the described second protuberance two ends are respectively arranged with the through hole that matches with described drift bolt, described support arm is two, end correspondence respectively is arranged on described second protuberance middle part, relative lateral surface and the medial surface that is fixedly installed on described chair frame front end column respectively by pin radially of the described first semi arch panel with the second semi arch panel opening, the described first protuberance both ends intersect stackedly with the described second protuberance both ends respectively, and described drift bolt correspondence is arranged in the described through hole.
8. electric wheelchair as claimed in claim 7, it is characterized in that, be provided with cantilever on the described front-wheel support respectively backward, described cantilever rear end is to being provided with axle, described connecting rod two ends are hinged on respectively on the described axle, and described connecting rod is provided with and makes the described connecting rod can be along collapsible locking device laterally folded and locking.
9. longitudinal folding electric wheelchair as claimed in claim 8, it is characterized in that, described collapsible locking support pull bar is specially two sections first sleeve pipe and second sleeve pipes that connect by bearing pin, wherein be provided with telescopic shaft in the first telescopic joint end, the second telescopic joint end is provided with the internal orifice dimension axle sleeve suitable with described telescopic shaft, described telescopic shaft is connected in first sleeve pipe by spring, on the telescopic shaft to being outside equipped with dial axis, the corresponding circumferential slot that is provided with axial groove and is communicated with axial groove with the telescopic shaft position of first casing wall, dial axis Sliding Control telescopic shaft in axial groove and circumferential slot cooperates with axle sleeve or breaks away from.
10. longitudinal folding electric wheelchair as claimed in claim 9, it is characterized in that, first sleeve pipe is connected with two pages of sheets of hinge respectively with second sleeve pipe, axle sleeve be arranged on the second telescopic joint page or leaf sheet on, be provided with the diameter hole suitable with corresponding telescopic shaft position on the first telescopic joint page or leaf sheet with described telescopic shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920170663 CN201481683U (en) | 2009-08-12 | 2009-08-12 | Electric wheel chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920170663 CN201481683U (en) | 2009-08-12 | 2009-08-12 | Electric wheel chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201481683U true CN201481683U (en) | 2010-05-26 |
Family
ID=42420575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920170663 Expired - Fee Related CN201481683U (en) | 2009-08-12 | 2009-08-12 | Electric wheel chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201481683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525754A (en) * | 2012-01-14 | 2012-07-04 | 宁波市鄞州发辉机械科技有限公司 | Foldable electric wheelchair |
| CN105882730A (en) * | 2014-11-18 | 2016-08-24 | 闫咏梅 | Steering control system split steering tubular column integrator |
-
2009
- 2009-08-12 CN CN 200920170663 patent/CN201481683U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102525754A (en) * | 2012-01-14 | 2012-07-04 | 宁波市鄞州发辉机械科技有限公司 | Foldable electric wheelchair |
| CN105882730A (en) * | 2014-11-18 | 2016-08-24 | 闫咏梅 | Steering control system split steering tubular column integrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120812 |