CN104800011A - Novel multifunctional wheelchair and using method thereof - Google Patents
Novel multifunctional wheelchair and using method thereof Download PDFInfo
- Publication number
- CN104800011A CN104800011A CN201510228657.8A CN201510228657A CN104800011A CN 104800011 A CN104800011 A CN 104800011A CN 201510228657 A CN201510228657 A CN 201510228657A CN 104800011 A CN104800011 A CN 104800011A
- Authority
- CN
- China
- Prior art keywords
- wheelchair
- cushion block
- wheel
- crawler belt
- multifunction
- 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.)
- Granted
Links
Landscapes
- Handcart (AREA)
- Invalid Beds And Related Equipment (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention relates to a novel multifunctional wheelchair and a using method thereof. The novel multifunctional wheelchair comprises a wheelchair body with two back wheels and two front wheels, wherein the front wheels is steerable; each back wheel is provided with a transmission box, and a main shaft connected with the back wheel in a transmission way is arranged in the transmission box and is driven by a main motor to rotate; three hollow gear shafts of which the lengths are sequentially shortened sequentially sleeve the main shaft from inside to outside and are provided with driving motors respectively ; an elastic telescopic rod is fixedly connected with the shaft end of each hollow gear shaft; a cushion block with a right triangular cross section is connected with the end part of each elastic telescopic rod, so that when the wheelchair body climbs a ladder, one cushion block is always kept at the bottom of the back wheels to change steps into a slope; the front wheels are arranged on the wheelchair body through a lifting mechanism. The novel multifunctional wheelchair is simple in structure and low in manufacturing cost, can be used on a flat ground, and can also climb the ladder, and various requirements are met.
Description
Technical field
The present invention relates to a kind of Multifunction wheelchair and using method thereof.
Background technology
In numerous people with disabilitys, the people relying on wheelchair to carry out auxiliary daily routines is needed to account for a sizable part.In addition, along with socioeconomic fast development, the raising of people's living standard and the huge improvement of medical and health care system, aging population showed increased, therefore handicapped old people is also the crowd needing wheelchair.But because common wheelchair does not have stair climbing function, thus strongly limit the scope of application of user, the depth & wideth making it participate in society is deeply influenced.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing and make improvement, namely technical problem to be solved by this invention is to provide a kind of Multifunction wheelchair and using method thereof, can not only travel on level land, but also can carry out stair climbing.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present invention is: a kind of Multifunction wheelchair, comprise the wheelchair body with two trailing wheels and two steerable front wheels, described trailing wheel is all equipped with transmission case, the main shaft be connected with rear wheel drive is provided with in described transmission case, described main shaft orders about rotation by a mair motor, described main shaft is arranged with from inside to outside successively the hollow gear shaft that three length shorten successively, described three hollow gear shafts are all equipped with drive motors, the axle head of described hollow gear shaft is fixedly connected with elastic telescopicing rod, the end of described elastic telescopicing rod is connected with the rectangular leg-of-mutton cushion block in cross section, to make wheelchair body when stair climbing, all the time there is one piece of cushion block, in the bottom of trailing wheel, step is turned to slope, described front-wheel is arranged on wheelchair body by elevating mechanism, described wheelchair body front bottom end is also hinged with crawler belt, this crawler belt keeps and ground inclination state, described wheelchair body is also provided with handrail and backrest, described backrest is detachably hinged on wheelchair body, after putting down to make backrest, this physical ability of wheelchair is connected with health care bed and uses, also comprise one for controlling the control panel of motor rotation and front-wheel lifting and the accumulator as power supply.Further, between described main shaft and hollow gear shaft, be provided with copper ring, between described adjacent hollow gear shaft, be also provided with copper ring.
Further, described elastic telescopicing rod comprises a connecting rod, the rear end of described connecting rod is fixedly connected with hollow gear shaft, its front end sleeve is provided with sleeve pipe, described sleeve pipe offers the chute running through two opposite side walls, described connecting rod front end is connected with the bolt assembly of slippage on chute, described connecting rod is also arranged with the spring remaining and pushed open by sleeve pipe, and the other end of described sleeve pipe is connected with cushion block.
Further, described elevating mechanism is cylinder, and after described front-wheel rises, crawler belt contacts with stair, and after described front-wheel declines, crawler belt does not contact with ground.
Further, described trailing wheel is also provided with brake gear.
Further, both sides, described backrest top are provided with hand-pushing handle, and described backrest is connected with wheelchair by movable buckle, catches on health care bed after described hand-pushing handle puts down, and described handrail is telescope formula handrail, can be elevated at vertical direction.
Further, described motor is direct current generator, and described crawler belt is rubber belt track.
Further, the contact surface of described cushion block and trailing wheel is provided with anti-skidding lines.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present invention is: a kind of using method of Multifunction wheelchair, and the method adopts wheelchair as above, carries out according to the following steps:
(1) normally use: when using on mild ground, cushion block and crawler belt all not with earth surface, control wheelchair by control panel and advance, retreat, turn and braking;
(2) cat ladder uses: when preparing stair climbing, wheelchair crawler belt first contacts step, cushion block running is controlled by control panel, make one piece of cushion block first by first step pad sloping, then front-wheel is promoted, start trailing wheel climbing, control second piece of cushion block to rotate simultaneously, when wheelchair rear wheel climbs up first step, second piece of cushion block is by pad sloping, second step rank, control first and the 3rd cushion block rotation again, move in circles, make there is a cushion block in the bottom of trailing wheel as slope in each moment, after having climbed stair, rotate and rise all cushion blocks, fall front-wheel,
(3) to go to bed use: put down backrest, dock with health care bed, user of service can lie down and can climb up health care bed easily, does not need other people help.
Further, during cat ladder, crawler belt is identical with the angle of cushion block.
Compared with prior art, the present invention has following beneficial effect: this device passes through the cooperation of three pieces of cushion blocks and crawler belt, and this wheelchair can not only be travelled on level land, more can stair climbing, can also be connected with health care bed, use as an integral bed, individuals with disabilities is expediently left the bed.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the structure schematic isometric of the embodiment of the present invention.
Fig. 2 is the organigram be connected with health care bed in the embodiment of the present invention.
Fig. 3 is the organigram of embodiment of the present invention stair climbing.
Fig. 4 is the view of trailing wheel and cushion block stair climbing in the embodiment of the present invention.
Fig. 5 is the organigram of embodiment of the present invention Elastic expansion link.
Fig. 6 is the organigram of transmission case, main shaft and hollow gear shaft in the embodiment of the present invention.
Fig. 7 is the organigram of main shaft and hollow gear shaft in the embodiment of the present invention.
In figure: 1-wheelchair body, 11-backrest, 12-hand-pushing handle, 13-handrail, 14-buckle, 2-trailing wheel, 3-front-wheel, 4-crawler belt, 5-transmission case, 51-main shaft, 52-hollow gear shaft, 6-elastic telescopicing rod, 61-fixed block, 62-connecting rod, 63-spring, 64-bolt assembly, 65-sleeve pipe, 7-cushion block, 8-stair, 9-health care bed.
Detailed description of the invention
Embodiment one: as shown in Fig. 1 ~ 7, a kind of Multifunction wheelchair, comprise the wheelchair body 1 with two trailing wheels 2 and two steerable front wheels 3, described trailing wheel 2 is all equipped with transmission case 5, the main shaft 51 be connected with rear wheel drive is provided with in described transmission case 5, described main shaft 51 orders about rotation by a mair motor, described main shaft 51 is arranged with from inside to outside successively the hollow gear shaft 52 that three length shorten successively, described three hollow gear shafts 52 are all equipped with drive motors, the axle head of described hollow gear shaft 52 is fixedly connected with elastic telescopicing rod 6, the end of described elastic telescopicing rod 6 is connected with the rectangular leg-of-mutton cushion block 7 in cross section, to make wheelchair body when stair climbing 8, all the time there is one piece of cushion block 7, in the bottom of trailing wheel 2, step is turned to slope, described front-wheel 3 is arranged on wheelchair body 1 by elevating mechanism, described wheelchair 1 front bottom end is also hinged with crawler belt 4, this crawler belt 4 keeps and ground inclination state, described wheelchair body is also provided with handrail 13 and backrest 11, described backrest 11 is detachably hinged on wheelchair body 1, after putting down to make backrest 11, this physical ability of wheelchair is connected with health care bed 9 and uses, also comprise one for controlling the control panel of motor rotation and front-wheel lifting and the accumulator as power supply.
In the present embodiment, in order to reduce frictional force, between described main shaft and hollow gear shaft, being provided with copper ring, between described adjacent hollow gear shaft, being also provided with copper ring.
In the present embodiment, described elastic telescopicing rod 6 comprises a connecting rod 62, the rear end of described connecting rod is fixedly connected with hollow gear shaft 52 by the fixed block 61 of a band through hole, its front end sleeve is provided with sleeve pipe 65, described sleeve pipe 65 offers the chute running through two opposite side walls, described connecting rod 62 front end is connected with the bolt assembly 64 of slippage on chute, described connecting rod 62 is also arranged with the spring 63 remaining and pushed open by sleeve pipe, the other end of described sleeve pipe 65 is connected with cushion block 7, this elastic telescopicing rod makes cushion block can adapt to the step surface of differing heights, after trailing wheel presses cushion block, elastic telescopicing rod shrinks, after trailing wheel sails out of cushion block, this elastic telescopicing rod recovers original length.
In the present embodiment, described elevating mechanism is cylinder, and after described front-wheel rises, crawler belt contacts with stair, and after described front-wheel declines, crawler belt does not contact with ground.
In the present embodiment, described trailing wheel is also provided with brake gear.
In the present embodiment, both sides, described backrest top are provided with hand-pushing handle 12, and described backrest is connected with wheelchair by movable buckle 14, catches on health care bed after described hand-pushing handle puts down, and described handrail is telescope formula handrail, can be elevated at vertical direction.
In the present embodiment, described motor is direct current generator, and described crawler belt is rubber belt track.
In the present embodiment, the contact surface of described cushion block and trailing wheel is provided with anti-skidding lines.
A using method for Multifunction wheelchair, the method adopts wheelchair as above, carries out according to the following steps:
(1) normally use: when using on mild ground, cushion block and crawler belt all not with earth surface, control wheelchair by control panel and advance, retreat, turn and braking;
(2) cat ladder uses: when preparing stair climbing, wheelchair crawler belt first contacts step, cushion block running is controlled by control panel, make one piece of cushion block first by first step pad sloping, then front-wheel is promoted, start trailing wheel climbing, control second piece of cushion block to rotate simultaneously, when wheelchair rear wheel climbs up first step, second piece of cushion block is by pad sloping, second step rank, control first and the 3rd cushion block rotation again, move in circles, make there is a cushion block in the bottom of trailing wheel as slope in each moment, after having climbed stair, rotate and rise all cushion blocks, fall front-wheel,
(3) to go to bed use: put down backrest, dock with health care bed, user of service can lie down and can climb up health care bed easily, does not need other people help.
Enter in the present embodiment, during cat ladder, crawler belt is identical with the angle of cushion block.
As shown in Figure 3-4, be the view of wheelchair stair-climbing ladder, when the state of (1), three cushion blocks and trailing wheel are with identical angular velocity around trailing wheel central rotation, and when cushion block a drops on first step, cushion block a stops operating, trailing wheel continues to go ahead, and makes trailing wheel climb up first step from a block; Meanwhile, b, c two cushion blocks all with the center of trailing wheel for axle rotates with identical angular velocity with trailing wheel; When a block just falls the position of first step, b block just forwards the position of former a block to, and c block forwards the position of b block to.When trailing wheel has climbed a block, as shown in figure (2), now b block just pads on second step, and c block just reaches the position of initial a block, (2) a block in by rapidly around the central rotation of trailing wheel to the position of initial c block, namely, after scheming the position of the c block in (1), the angular velocity that control a block rotates is identical with the angular velocity that trailing wheel rotates.When trailing wheel has climbed b block, namely climb second step that be over, now, c block just pads on the 3rd step, and b block fast around the central rotation of trailing wheel on the position of initial c block, namely scheme the block position in (1); When trailing wheel has climbed c block, a block has padded again on the 4th step, so far just completes a circulation.The rest may be inferred, and Climbing building device continues to rotate according to the circulation law of regulation, thus ensure that wheelchair is under the action of this cover mechanism, can realize its continuous print by the mode of other people auxiliary balance and climb building.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a Multifunction wheelchair, it is characterized in that: comprise the wheelchair body with two trailing wheels and two steerable front wheels, described trailing wheel is all equipped with transmission case, the main shaft be connected with rear wheel drive is provided with in described transmission case, described main shaft orders about rotation by a mair motor, described main shaft is arranged with from inside to outside successively the hollow gear shaft that three length shorten successively, described three hollow gear shafts are all equipped with drive motors, the axle head of described hollow gear shaft is fixedly connected with elastic telescopicing rod, the end of described elastic telescopicing rod is connected with the rectangular leg-of-mutton cushion block in cross section, to make wheelchair body when stair climbing, all the time there is one piece of cushion block, in the bottom of trailing wheel, step is turned to slope, described front-wheel is arranged on wheelchair body by elevating mechanism, described wheelchair body front bottom end is also hinged with crawler belt, this crawler belt keeps and ground inclination state, described wheelchair body is also provided with handrail and backrest, described backrest is detachably hinged on wheelchair body, after putting down to make backrest, this physical ability of wheelchair is connected with health care bed and uses, also comprise one for controlling the control panel of motor rotation and front-wheel lifting and the accumulator as power supply.
2. Multifunction wheelchair according to claim 1, is characterized in that: be provided with copper ring between described main shaft and hollow gear shaft, is also provided with copper ring between described adjacent hollow gear shaft.
3. Multifunction wheelchair according to claim 2, it is characterized in that: described elastic telescopicing rod comprises a connecting rod, the rear end of described connecting rod is fixedly connected with hollow gear shaft, its front end sleeve is provided with sleeve pipe, described sleeve pipe offers the chute running through two opposite side walls, described connecting rod front end is connected with the bolt assembly of slippage on chute, described connecting rod is also arranged with the spring remaining and pushed open by sleeve pipe, and the other end of described sleeve pipe is connected with cushion block.
4. Multifunction wheelchair according to claim 1, is characterized in that: described elevating mechanism is cylinder, and after described front-wheel rises, crawler belt contacts with stair, and after described front-wheel declines, crawler belt does not contact with ground.
5. Multifunction wheelchair according to claim 1, is characterized in that: described trailing wheel is also provided with brake gear.
6. Multifunction wheelchair according to claim 1, is characterized in that: both sides, described backrest top are provided with hand-pushing handle, catch on health care bed after described hand-pushing handle puts down, and described handrail is telescope formula handrail, can be elevated at vertical direction.
7. Multifunction wheelchair according to claim 1, is characterized in that: described motor is direct current generator, described crawler belt is rubber belt track.
8. Multifunction wheelchair according to claim 1, is characterized in that: the contact surface of described cushion block and trailing wheel is provided with anti-skidding lines.
9. a using method for Multifunction wheelchair, the method adopts wheelchair as claimed in claim 1, it is characterized in that, carries out according to the following steps:
(1) normally use: when using on mild ground, cushion block and crawler belt all not with earth surface, control wheelchair by control panel;
(2) cat ladder uses: when preparing stair climbing, wheelchair crawler belt first contacts step, cushion block running is controlled by control panel, make one piece of cushion block first by first step pad sloping, then front-wheel is promoted, start trailing wheel climbing, control second piece of cushion block to rotate simultaneously, when wheelchair rear wheel climbs up first step, second piece of cushion block is by pad sloping, second step rank, control first and the 3rd cushion block rotation again, move in circles, make there is a cushion block in the bottom of trailing wheel as slope in each moment, after having climbed stair, rotate and rise all cushion blocks, fall front-wheel,
(3) body-building uses: put down backrest, dock with health care bed, and user of service can lie down use.
10. the using method of Multifunction wheelchair according to claim 9, is characterized in that: during cat ladder, crawler belt is identical with the angle of cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228657.8A CN104800011B (en) | 2015-05-07 | 2015-05-07 | Novel multifunctional wheelchair and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228657.8A CN104800011B (en) | 2015-05-07 | 2015-05-07 | Novel multifunctional wheelchair and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104800011A true CN104800011A (en) | 2015-07-29 |
| CN104800011B CN104800011B (en) | 2017-01-18 |
Family
ID=53685518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510228657.8A Expired - Fee Related CN104800011B (en) | 2015-05-07 | 2015-05-07 | Novel multifunctional wheelchair and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104800011B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106038108A (en) * | 2016-07-12 | 2016-10-26 | 山东理工大学 | Novel wheelchair capable of climbing steps |
| CN107280872A (en) * | 2017-07-31 | 2017-10-24 | 彭红程 | A kind of intelligent wheel chair and device instead of walk |
| CN110037870A (en) * | 2019-05-08 | 2019-07-23 | 开封大学 | A kind of combined type medical nursing bed |
| CN111714297A (en) * | 2020-06-18 | 2020-09-29 | 长江大学 | Wheel chair |
| CN112603675A (en) * | 2020-12-29 | 2021-04-06 | 广东工业大学 | Multifunctional wheelchair and balance self-adjusting method thereof |
| CN113143628A (en) * | 2020-11-09 | 2021-07-23 | 中国计量大学 | Bed-chair integrated device assisting in full-automatic nursing of old people with inconvenient legs and feet and use method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5335741A (en) * | 1991-05-22 | 1994-08-09 | Israel Aircraft Industries Ltd. | Externally mounted track apparatus for a wheel chair |
| US5553548A (en) * | 1995-04-12 | 1996-09-10 | Eaton; Kenneth C. | System and method for moving an occupied wheelchair between two levels |
| KR200413641Y1 (en) * | 2006-01-04 | 2006-04-11 | 동아대학교 산학협력단 | Wheel chair capable of going up slope |
| CN201079509Y (en) * | 2007-09-11 | 2008-07-02 | 杨荣清 | Track stairs climbing chair |
| CN101268977A (en) * | 2007-03-21 | 2008-09-24 | 中国科学院自动化研究所 | Auxiliary method and device for speeling stairway of wheelchair |
| CN102895077A (en) * | 2012-10-31 | 2013-01-30 | 陶卫军 | Novel wheel-crawler compound electrically propelled wheelchair |
| CN203001276U (en) * | 2012-12-28 | 2013-06-19 | 王舒心 | Multifunctional wheel chair |
| CN103655073A (en) * | 2012-09-13 | 2014-03-26 | 曾文昌 | Wheelchair structure |
| CN203634387U (en) * | 2013-11-27 | 2014-06-11 | 郑重胜 | Multifunctional health wheelchair assisting in ascending and descending stairs |
| CN204016663U (en) * | 2014-08-25 | 2014-12-17 | 洪文 | Automatic wheelchair |
| CN204618620U (en) * | 2015-05-07 | 2015-09-09 | 福建农林大学 | A kind of wheelchair with cat ladder function |
-
2015
- 2015-05-07 CN CN201510228657.8A patent/CN104800011B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5335741A (en) * | 1991-05-22 | 1994-08-09 | Israel Aircraft Industries Ltd. | Externally mounted track apparatus for a wheel chair |
| US5553548A (en) * | 1995-04-12 | 1996-09-10 | Eaton; Kenneth C. | System and method for moving an occupied wheelchair between two levels |
| KR200413641Y1 (en) * | 2006-01-04 | 2006-04-11 | 동아대학교 산학협력단 | Wheel chair capable of going up slope |
| CN101268977A (en) * | 2007-03-21 | 2008-09-24 | 中国科学院自动化研究所 | Auxiliary method and device for speeling stairway of wheelchair |
| CN201079509Y (en) * | 2007-09-11 | 2008-07-02 | 杨荣清 | Track stairs climbing chair |
| CN103655073A (en) * | 2012-09-13 | 2014-03-26 | 曾文昌 | Wheelchair structure |
| CN102895077A (en) * | 2012-10-31 | 2013-01-30 | 陶卫军 | Novel wheel-crawler compound electrically propelled wheelchair |
| CN203001276U (en) * | 2012-12-28 | 2013-06-19 | 王舒心 | Multifunctional wheel chair |
| CN203634387U (en) * | 2013-11-27 | 2014-06-11 | 郑重胜 | Multifunctional health wheelchair assisting in ascending and descending stairs |
| CN204016663U (en) * | 2014-08-25 | 2014-12-17 | 洪文 | Automatic wheelchair |
| CN204618620U (en) * | 2015-05-07 | 2015-09-09 | 福建农林大学 | A kind of wheelchair with cat ladder function |
Non-Patent Citations (1)
| Title |
|---|
| 李育文等: ""一种新型的可爬楼梯轮椅结构设计及运动分析"", 《 制造业自动化》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106038108A (en) * | 2016-07-12 | 2016-10-26 | 山东理工大学 | Novel wheelchair capable of climbing steps |
| CN107280872A (en) * | 2017-07-31 | 2017-10-24 | 彭红程 | A kind of intelligent wheel chair and device instead of walk |
| CN107280872B (en) * | 2017-07-31 | 2023-08-22 | 彭红程 | Intelligent wheelchair and scooter |
| CN110037870A (en) * | 2019-05-08 | 2019-07-23 | 开封大学 | A kind of combined type medical nursing bed |
| CN111714297A (en) * | 2020-06-18 | 2020-09-29 | 长江大学 | Wheel chair |
| CN113143628A (en) * | 2020-11-09 | 2021-07-23 | 中国计量大学 | Bed-chair integrated device assisting in full-automatic nursing of old people with inconvenient legs and feet and use method |
| CN112603675A (en) * | 2020-12-29 | 2021-04-06 | 广东工业大学 | Multifunctional wheelchair and balance self-adjusting method thereof |
| CN112603675B (en) * | 2020-12-29 | 2022-03-01 | 广东工业大学 | Multifunctional wheelchair and balance self-adjusting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104800011B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104800011A (en) | Novel multifunctional wheelchair and using method thereof | |
| CN204618620U (en) | A kind of wheelchair with cat ladder function | |
| CN104207899B (en) | Stair climbing wheelchair | |
| CN101797202B (en) | Crawler-type land-stair dual-purpose scooter | |
| CN2917606Y (en) | Wheeled chair capable of going upstairs and downstairs | |
| CN103110487B (en) | The amphibious obstacle-free intelligent robot wheel chair in a kind of terraced land | |
| WO2018161443A1 (en) | Electric wheelchair | |
| CN104970931A (en) | Multifunctional electric wheelchair | |
| CN211583889U (en) | Multifunctional wheelchair for helping the aged | |
| CN102028590B (en) | Dual-purpose enclosed electric wheelchair for climbing stairs and walking | |
| CN107411901A (en) | Intelligent multifunction electric wheel-chair vehicle | |
| CN202605146U (en) | Electrical stair climbing vehicle | |
| CN103027805A (en) | Road-staircase dual-purpose wheelchair | |
| CN205181649U (en) | Automatic wheelchair of climbing stair | |
| CN203138895U (en) | Barrier-free intelligent robot wheelchair used in flat ground and stairs | |
| CN102327164A (en) | Wheelchair capable of automatically going upstairs and downstairs | |
| CN103767841A (en) | Wheel and crawler type dual-purpose wheelchair for both roads and stairs | |
| CN202554299U (en) | Dual-purpose wheel chair | |
| CN211835059U (en) | Novel wheelchair stair climbing vehicle | |
| CN204133731U (en) | Crawler belt stair climbing wheel chair | |
| CN203693924U (en) | Wheelchair drive device and wheelchair | |
| CN2286123Y (en) | Multi-function electric up-down stairs cart | |
| KR102373539B1 (en) | Electric assist module for wheelchair driving on stairs and stepped terrain | |
| CN213851523U (en) | Manned stair climbing robot | |
| CN201870836U (en) | Enclosed power-driven wheel chair for going upstairs and walking on ground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |