CN202235988U - Electric wheel chair applied to multiple road conditions - Google Patents
Electric wheel chair applied to multiple road conditions Download PDFInfo
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- CN202235988U CN202235988U CN2011202444545U CN201120244454U CN202235988U CN 202235988 U CN202235988 U CN 202235988U CN 2011202444545 U CN2011202444545 U CN 2011202444545U CN 201120244454 U CN201120244454 U CN 201120244454U CN 202235988 U CN202235988 U CN 202235988U
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- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 230000009194 climbing Effects 0.000 claims abstract description 14
- 244000309464 bull Species 0.000 claims description 74
- 230000007547 defect Effects 0.000 abstract 1
- 230000003028 elevating effect Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 4
- 230000004899 motility Effects 0.000 description 4
- 241000272165 Charadriidae Species 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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Abstract
The utility model relates to an electric wheel chair applied to multiple road conditions, which belongs to apparatus for the disabled. In order to enable the electric wheel chair applied to multiple road conditions to climb steps and adapt to various road conditions, two working states of the electric wheel chair are designed, wherein one is an indoor traveling mode, and the other one is a step climbing mode. The two modes adopt two different traveling mechanisms to complete respective tasks. When the electric wheel chair is worked in the step climbing mode, a big front wheel, a big rear wheel, a wheel chair driving device and the like form a traveling mechanism for carrying out a step climbing task; and when the electric wheel chair is worked in indoor traveling mode, a big front wheel, a rear universal wheel, a wheel chair driving device and the like form a traveling mechanism, or a big rear wheel, a front universal wheel and a wheel chair driving device and the like form a traveling mechanism for carrying out an indoor traveling task. According to the scheme, the defect that a common electric wheel chair cannot climb steps can be well overcome, and the electric wheel chair is suitable for traveling indoors, climbing steps outdoors, and walking on uneven pavement.
Description
Technical field:
The present invention is a classification of disabled apparatus
Background technology:
Electric wheelchair obtains the eyeball of user and looks to use plurality of advantages such as convenience, saving is physical, travel distance is far away.But electric wheelchair and manpower wheelchair have same deficiency, and its deficiency mainly shows the adaptive capacity this respect to road conditions, when electric wheelchair runs into uneven road surface or step it just be difficult to through or even can't pass through.When running into step in the way of the destination that user will go, under the situation of help of having no talent, have only helpless abandoning.This situation has been brought very big inconvenience to user even has seriously been restricted their range of activity.Yet step is ubiquitous in our living environment.Why a lot of in the market electric wheelchairs can not climb that step all has is because they only pursue motility, the general less universal wheel of diameter that all is to use of a wherein side of its front-wheel or trailing wheel.Such structure is difficult to climb steps, and their also less this of driving power also is the major reason that they are difficult to climb steps simultaneously.The electric wheelchair that can climb step or even stair climbing is also arranged on the market, and their structure generally all is to use crawler type, four-wheel driving type or the like.Though such structure can be climbed step it a very big deficiency is arranged is exactly to be short of motility to be not suitable in indoor use.Both are combined electric wheelchair that one one of design not only had been fit to indoor use but also can have climbed step or stair this programme problem that will solve just.
Summary of the invention:
At first be designed to two kinds to the duty of electric wheelchair in order to make multichannel condition electric wheelchair can climb step with the multiple road conditions of adaptation hereinafter to be referred as electric wheelchair.A kind of is indoor walking mode; A kind of is to climb the step pattern.Two kinds of patterns adopt two different cover walking mechanisms to go to accomplish task separately.Form walking mechanism and carry out the step task of climbing when electric wheelchair will be operated in when climbing the step pattern to be waited by preceding bull wheel, back bull wheel and wheelchair drive mechanism; When electric wheelchair will be operated in indoor walking mode, form walking mechanism, or the walking mechanism of compositions such as back bull wheel, preceding universal wheel and wheelchair drive mechanism is carried out the task of indoor walking by preceding bull wheel, back universal wheel and wheelchair drive mechanism etc.
Make electric wheelchair ability climb steps and adapt to the also big large diameter wheel of vertical height size that more more complicated these electric wheelchairs of road conditions have adopted four radius ratio steps, hereinafter to be referred as bull wheel, these four bull wheels are divided into two groups, and per two is one group.One group of the place ahead that is installed in electric wheelchair and about distribute to distribute about making preceding bull wheel, another group be installed in the Electric Motor Wheel rear to be equally and be bull wheel afterwards.So because these four big wheel diameters are particularly suitable for climbing step greatly and on uneven road surface, use.Be operated in when climbing the step pattern in order to obtain bigger motive force at electric wheelchair, four bull wheels are connected to wheelchair drive mechanism through different forms and form walking mechanism and realize four-wheel drive before and after this.Former and later two bull wheels on the electric wheelchair left side link together through actuating device and are connected to revolver chair driving device; Former and later two bull wheels on the right link together through actuating device and are connected to right wheelchair drive mechanism.About two wheelchair drive mechanism with handled by a controller.Controller can be controlled the wheelchair drive mechanism of the right and left with different the turning to of different speed actions such as the bull wheel that drives the right and left is realized turning, original place 360 degree turn to.Certainly the front and back bull wheel of electric wheelchair homonymy also can be connected to wheelchair drive mechanism through actuating device independently of one another, the shared wheelchair drive mechanism of bull wheel that more can the right and left.Bull wheel like every avris can be connected to same wheelchair drive mechanism through actuating device, clutch etc.Clutch that can be through separately when the shared wheelchair drive mechanism of the bull wheel of two avris, brake etc. realize the friction speed of right sides bull wheel and then realize turning.Four of electric wheelchair bull wheels can all use a wheelchair drive mechanism by each bull wheel in addition, four wheelchair drive mechanism by their rotating speed of controller united and coordinating, turn to actions such as realizing turning.The actuating device that this programme uses can be sprocket wheel, chain, also can be gear, power transmission shaft and belt, belt pulley or the like.
Climb the step pattern and be not suitable for indoor walking, this is because four bull wheels in front and back are not all installed steering mechanism, and its keep left speed difference of right both sides bull wheel realizes turning, and not only requires great effort during minor-circle turn but also tire can produce serious wearing of side slipping.When the very high frequency of electric wheelchair minor-circle turn during in indoor use, above-mentioned like this shortcoming can be more outstanding.Increase the motility that keeps existing electric wheelchair again when electric wheelchair is climbed the function of step, at this moment a wherein side of electric wheelchair front-wheel or trailing wheel still will adopt universal wheel.So this is that it is all very not little to its resistance of that direction running owing to universal wheel has fixed direction of travel; The travel direction that electric wheelchair uses behind the universal wheel it mainly by the rotating speed of two driving bull wheels about non-universal wheel one side with turn to decision, a side of universal wheel can follow and cooperate automatically.So just avoided above-mentioned sideslip phenomenon, so the present invention's electric wheelchair in indoor walking mode still uses universal wheel, the motility of electric wheelchair just obtains strong assurance.To form walking mechanism with the back bull wheel that is contained in the electric wheelchair rear and wheelchair drive mechanism as shown in Figure 1 for universal wheel before the place ahead that universal wheel can be contained in electric wheelchair in this programme was called, or the universal wheel rear that is contained in electric wheelchair is called afterwards universal wheel and forms walking mechanism with preceding bull wheel that is contained in electric wheelchair the place ahead and wheelchair drive mechanism to accomplish indoor walking task as shown in Figure 2.The arrangement of above scheme can overcome the shortcoming that the common electric wheelchair can not be climbed step well, makes electric wheelchair both be adapted at indoor walking and also can climb on step and the road surface of walking in injustice outdoor.
But the wherein side from the place ahead or the rear of above-mentioned knowledge capital electric wheelchair is equipped with bull wheel and universal wheel simultaneously and forms front-wheel or trailing wheel jointly by them.This is a contradiction when same orientation adopts bull wheel, to adopt universal wheel again, has taked some special technical measures for dissolving this contradiction this programme, can not let two kinds of wheels work simultaneously exactly.Only letting needs the wheel of its work to fall on the ground, does not allow the wheel of its work to want this contradiction of its built on stilts just can be dissolved.That is to say that a kind of mode of operation is by a kind of wheel work.Switching between two kinds of mode of operations is mainly by a universal wheel lifting drive control universal wheel job or deactivate and realize.One side's at universal wheel place bull wheel when universal wheel participation work (preceding bull wheel or back bull wheel) is deactivated, and electric wheelchair is operated in indoor walking mode; A side's at universal wheel place bull wheel when universal wheel is deactivated (preceding bull wheel or back bull wheel) is taken over its work, and electric wheelchair is operated in the step pattern of climbing.The universal wheel lifting drive is connected between caster bracket and the vehicle frame, and the work that the up-down of controlling universal wheel by it is just being controlled it whether.When raising under the driving of universal wheel at it, universal wheel breaks away from ground and deactivates; When descending under the driving of universal wheel at it, universal wheel drops on the ground and should deactivate by side's bull wheel jack-up built on stilts, is taken over the work of this side's bull wheel by universal wheel.Certainly the switching between these two kinds of mode of operations also can go up and down to realize through the bull wheel that lowering or hoisting gear is controlled universal wheel place side.For example move lifting drive between the bull wheel that is contained in universal wheel place side, big wheel support and the vehicle frame and get final product.This moment, this lifting drive should be called the bull wheel lifting drive.In such layout, universal wheel is fixedly installed on the vehicle frame.Drive and to move up and down by side's bull wheel with principle same as described above, just can realize the switching of two kinds of mode of operations.The composition of universal wheel lifting drive or bull wheel lifting drive all is diversified; For example it can be formed also and can be made up of screw rod, elevating lever, gear, motor etc. by hydraulic jack, oil pump, control valve etc., more can cylinder, composition such as air pump, air valve.The power aspect can be manual also can be mobile, its combination is diversified in a word.
Description of drawings:
Fig. 1, universal wheel are contained in the electric wheelchair front and form walking mechanism with big wheel, right front vertical view.
Fig. 2, universal wheel are contained in the electric wheelchair back and form walking mechanism with big wheel, right front vertical view.
Among the figure: preceding bull wheel 1, preceding universal wheel 2, lifting motor 3, gear 4, vehicle frame 5, wheelchair drive mechanism 6, back bull wheel 7, sprocket wheel 8 (sprocket wheel 8 one has four), caster bracket 9, elevating lever 10, support 11, screw rod 12, back universal wheel 13.
The specific embodiment:
Example one, to make wheelchair climb the technical scheme of step a lot, and this programme has been chosen the mode of four-wheel drive under taking all factors into consideration.Four bull wheels are divided into two groups, and per two is one group.One group of the place ahead that is installed in electric wheelchair and about distribute to distribute about making preceding bull wheel 1, another group be installed in the Electric Motor Wheel rear to be equally and be bull wheel 7 afterwards.Four bull wheels are fixedly installed togather with a sprocket wheel 8 (sprocket wheel 8 also has four) separately.About two preceding bull wheels 1 distributing be installed on the vehicle frame 5 through rotating shaft, bearing etc. separately together with sprocket wheel 8, free to rotate separately.Bull wheel 7 is contained in respectively on the power output shaft that is positioned at two wheelchair drive mechanism 6 that distribute about the electric wheelchair rear together with sprocket wheel 8 after distribute about same two.The sprocket wheel that is contained on the bull wheel of front and back of homonymy connects together through chain, and the front and back bull wheel 1 and 7 of homonymy is rotated by the driving of homonymy wheelchair drive mechanism 6 synchronously like this, has realized four-wheel drive.Wheelchair drive mechanism 6 has adopted ready-made high-power wheelchair drive motors, this type electric machine built-in deceleration device and brake unit simplified design and installation greatly.About two wheelchair drive mechanism 6 be connected to controller through circuit.As shown in Figure 1.
The place ahead that the preceding universal wheel 2 of this example and universal wheel lifting drive are arranged in electric wheelchair is as shown in Figure 1, and the universal wheel lifting drive mainly is made up of lifting motor 3, caster bracket 9, support 11, gear 4 etc.Lifting motor 3, screw rod 12 connect together with being installed on the support 11 and leading to gear 4, and support 11 is hinged on the vehicle frame 5.Lifting motor 3 can drive screw rod 12 through gear 4 and rotate.Caster bracket 9 is hinged on the vehicle frame 5, and elevating lever 10 is processed with the female thread that is complementary with screw rod 12 and is hinged on the caster bracket 9, and caster bracket 9 can freely swing up and down.Screw rod 12 is threaded together with elevating lever 10, and screw rod 12 can drive elevating lever 10 and move up and down and also drive caster bracket 9 and do elevating movement together with preceding universal wheel 2 when rotating, as Fig. 1, shown in.Lifting motor 3 is connected to controller through circuit, by the up-down of controller control universal wheel with stop.
Its work process is: when user runs into step and is in the way in traveling process, can start lifting motor 3 through controller is just changeing, and lifting motor 3 drives screw rods 12 through gear 4 and rotates together.The rotation of screw rod 12 has driven elevating lever 10, caster bracket 9 and preceding universal wheel 2 and has moved upward together.Therefore before deactivate in universal wheel 2 disengaging ground.Before universal wheel 2 move upward, the place ahead and the preceding bull wheel 1 that make electric wheelchair be to decline, the work of universal wheel 2 before two preceding bull wheels 1 just touch ground and take over when deactivate in current universal wheel 2 disengaging ground.At this moment four of electric wheelchair bull wheels all contact and are operated in the step pattern of climbing under the four-wheel drive with ground.User is as long as start wheelchair drive mechanism 6 at leisure, and electric wheelchair will be climbed up or walks to get out of a predicament or an embarrassing situation as 4-wheel driven car like a cork.
For obtaining changeable time indoor walking mode of greater flexibility electric wheelchair, at this moment user is as long as start lifting motor 3 counter-rotatings through controller after the stride over steps, and lifting motor 3 drives screw rod 12 through gear 4 and reverses together.The counter-rotating of screw rod 12 has driven elevating lever 10, caster bracket 9 and preceding universal wheel 2 and has moved downward together.Before universal wheel 2 therefore begin to touch ground, when it continues to move downward can with electric wheelchair anterior with the rising of preceding bull wheel 1 jack-up together to a certain degree, at this moment two preceding bull wheels 1 are deactivated because of built on stilts.Current universal wheel 2 arrives the lifting motor of setting after bottom dead center 3 and can under the effect of control circuit, quit work automatically, and electric wheelchair is operated in bull wheel 7 after two and makes universal wheel 2 before the driving wheel to follow the indoor walking mode of wheel as shown in Figure 1.
Example two, this example mainly are the rears that is arranged in back universal wheel 13, caster bracket and universal wheel lifting drive thereof etc. electric wheelchair; About two wheelchair drive mechanism 6 be installed in the place ahead of electric wheelchair and be fitted together with about two sprocket wheel 8, the preceding bull wheels 1 that distribute respectively, its mounting structure is identical with the mounting structure of last one routine back bull wheel 7, sprocket wheel 8, wheelchair drive mechanism 6.As shown in Figure 2, the step pattern of climbing that such change is original is constant, walking mechanism still by preceding bull wheel 1, back bull wheel 7 and about two wheelchair drive mechanism 6 etc. form.The walking mechanism of indoor walking mode is made driving wheel by two preceding bull wheels 1, back universal wheel 13 follow the wheel with about two wheelchair drive mechanism 6 compositions such as grade.In addition all structures and operation principle and a last example are basic identical.
Example three, move lifting drive between the big wheel support and vehicle frame that is contained in universal wheel place side, use and example 1 similar principle, promptly usefulness is controlled the switching whether this bull wheel work realizes two kinds of mode of operations.This example and example 1 are different to be that its universal wheel is fixed (can not do elevating movement), and what lifting drive drove is big wheel support and two bull wheels of universal wheel place side.Its structure is to be contained in through bearing, axle etc. on two bull wheels of universal wheel place side by a big wheel support, and the other end of big wheel support is hinged on the vehicle frame and can swings up and down around hinge.Two bull wheels have been linked as one with two sprocket wheels that are installed in above them about big wheel support handle, and the bull wheel of the right and left can go on foot elevating movement.Lifting drive is contained in and drives big wheel support between big wheel support and the vehicle frame, bull wheel moves up and down.Operation principle is similar with example one.Drive the rear that the place ahead that the lifting drive of bull wheel, big wheel support and universal wheel can be contained in electric wheelchair together also can be contained in electric wheelchair, the opposing party's wheelchair drive mechanism is also done corresponding change when they are contained in the place ahead or rear.
Claims (1)
1. a multichannel condition electric wheelchair is characterized in that, two kinds of mode of operations of multichannel condition electric wheelchair are mainly realized by two cover walking mechanisms:
A kind of its walking mechanism of step pattern of climbing mainly is: forward and backward bull wheel is connected on the wheelchair drive mechanism through actuating device or four each bull wheels of bull wheel all use a wheelchair drive mechanism to constitute the four-wheel drive walking mechanism,
Two kinds of its walking mechanisms of indoor walking mode mainly are: this pattern is that universal wheel is installed at the place ahead or the rear at multichannel condition electric wheelchair on the basis of the four-wheel drive walking mechanism of climbing the step pattern; Preceding bull wheel constitutes the walking mechanism under the indoor walking mode of multichannel condition electric wheelchair with back universal wheel or back bull wheel with preceding universal wheel, and universal wheel drives through the universal wheel lifting drive or the bull wheel of universal wheel place side is gone up and down by the driving of bull wheel lifting drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202444545U CN202235988U (en) | 2011-06-27 | 2011-06-27 | Electric wheel chair applied to multiple road conditions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202444545U CN202235988U (en) | 2011-06-27 | 2011-06-27 | Electric wheel chair applied to multiple road conditions |
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| Publication Number | Publication Date |
|---|---|
| CN202235988U true CN202235988U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202444545U Expired - Fee Related CN202235988U (en) | 2011-06-27 | 2011-06-27 | Electric wheel chair applied to multiple road conditions |
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| Country | Link |
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| CN (1) | CN202235988U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283749A (en) * | 2011-06-27 | 2011-12-21 | 胡达广 | Multi-road condition electric wheelchair |
| CN107249539A (en) * | 2015-02-16 | 2017-10-13 | 移动2000（澳大利亚）有限公司 | Step annex is climbed for belt wheel chair |
| CN109512594A (en) * | 2018-11-21 | 2019-03-26 | 深圳市迈康信医用机器人有限公司 | The road surface hole sill identifying system and its wheelchair of wheelchair |
-
2011
- 2011-06-27 CN CN2011202444545U patent/CN202235988U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283749A (en) * | 2011-06-27 | 2011-12-21 | 胡达广 | Multi-road condition electric wheelchair |
| CN102283749B (en) * | 2011-06-27 | 2013-04-03 | 胡达广 | Electric wheelchair for multiple road conditions |
| CN107249539A (en) * | 2015-02-16 | 2017-10-13 | 移动2000（澳大利亚）有限公司 | Step annex is climbed for belt wheel chair |
| US10369064B2 (en) | 2015-02-16 | 2019-08-06 | Mobility 2000 (Australia) Limited | Step-climbing attachment for a wheeled chair |
| CN111671583A (en) * | 2015-02-16 | 2020-09-18 | 移动2000（澳大利亚）有限公司 | Accessory for climbing steps with wheelchair |
| CN109512594A (en) * | 2018-11-21 | 2019-03-26 | 深圳市迈康信医用机器人有限公司 | The road surface hole sill identifying system and its wheelchair of wheelchair |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130627 |