CN204618620U - A kind of wheelchair with cat ladder function - Google Patents
A kind of wheelchair with cat ladder function Download PDFInfo
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- CN204618620U CN204618620U CN201520290475.9U CN201520290475U CN204618620U CN 204618620 U CN204618620 U CN 204618620U CN 201520290475 U CN201520290475 U CN 201520290475U CN 204618620 U CN204618620 U CN 204618620U
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- wheelchair
- wheel
- cat ladder
- hollow gear
- cushion block
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Abstract
This utility model relates to a kind of wheelchair with cat ladder function, 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.This apparatus structure is simple, and cost of manufacture is low, can use on level land, also can stair climbing, meets various demand.
Description
Technical field
This utility model relates to a kind of wheelchair with cat ladder function.
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
This utility model makes improvement for above-mentioned prior art Problems existing, and namely technical problem to be solved in the utility model is to provide a kind of wheelchair with cat ladder function, 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 utility model is: a kind of wheelchair with cat ladder function, 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.
Compared with prior art, this utility model 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 utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the structure schematic isometric of this utility model embodiment.
Fig. 2 is the organigram be connected with health care bed in this utility model embodiment.
Fig. 3 is the organigram of this utility model embodiment stair climbing.
Fig. 4 is the view of trailing wheel and cushion block stair climbing in this utility model embodiment.
Fig. 5 is the organigram of this utility model embodiment Elastic expansion link.
Fig. 6 is the organigram of transmission case, main shaft and hollow gear shaft in this utility model embodiment.
Fig. 7 is the organigram of main shaft and hollow gear shaft in this utility model embodiment.
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 wheelchair with cat ladder function, 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 1 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 body 1 front bottom end is also hinged with crawler belt 4, this crawler belt 4 keeps and ground inclination state, described wheelchair 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, wheelchair can be 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 body by movable buckle 14, catches on health care bed after described hand-pushing handle puts down, 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 wheelchair with cat ladder function, 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 utility model, all equalizations done according to this utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (8)
1. the wheelchair with cat ladder function, 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. the wheelchair of band cat ladder function 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. the wheelchair of band cat ladder function 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. the wheelchair of band cat ladder function 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. the wheelchair of band cat ladder function according to claim 1, is characterized in that: described trailing wheel is also provided with brake gear.
6. the wheelchair of band cat ladder function according to claim 1, it 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, described handrail is telescope formula handrail, can be elevated at vertical direction.
7. the wheelchair of band cat ladder function according to claim 1, is characterized in that: described motor is direct current generator, and described crawler belt is rubber belt track.
8. the wheelchair of band cat ladder function according to claim 1, is characterized in that: the contact surface of described cushion block and trailing wheel is provided with anti-skidding lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290475.9U CN204618620U (en) | 2015-05-07 | 2015-05-07 | A kind of wheelchair with cat ladder function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290475.9U CN204618620U (en) | 2015-05-07 | 2015-05-07 | A kind of wheelchair with cat ladder function |
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| Publication Number | Publication Date |
|---|---|
| CN204618620U true CN204618620U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520290475.9U Active CN204618620U (en) | 2015-05-07 | 2015-05-07 | A kind of wheelchair with cat ladder function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104800011A (en) * | 2015-05-07 | 2015-07-29 | 福建农林大学 | Novel multifunctional wheelchair and using method thereof |
| CN107260425A (en) * | 2017-06-14 | 2017-10-20 | 中国地质大学（武汉） | Manual stair-climbing wheel chair |
| CN108670602A (en) * | 2018-05-28 | 2018-10-19 | 赵子宁 | A kind of wheelchair of the upper and lower bus of convenience |
| RU193666U1 (en) * | 2019-05-23 | 2019-11-11 | Игорь Александрович Зябрев | TRANSFORMABLE SEGMENTARY WHEEL |
| CN111572672A (en) * | 2020-06-01 | 2020-08-25 | 武义普巴机械设备有限公司 | Automatic loading and unloading transport vehicle capable of climbing stairs |
-
2015
- 2015-05-07 CN CN201520290475.9U patent/CN204618620U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104800011A (en) * | 2015-05-07 | 2015-07-29 | 福建农林大学 | Novel multifunctional wheelchair and using method thereof |
| CN104800011B (en) * | 2015-05-07 | 2017-01-18 | 福建农林大学 | Novel multifunctional wheelchair and using method thereof |
| CN107260425A (en) * | 2017-06-14 | 2017-10-20 | 中国地质大学（武汉） | Manual stair-climbing wheel chair |
| CN108670602A (en) * | 2018-05-28 | 2018-10-19 | 赵子宁 | A kind of wheelchair of the upper and lower bus of convenience |
| RU193666U1 (en) * | 2019-05-23 | 2019-11-11 | Игорь Александрович Зябрев | TRANSFORMABLE SEGMENTARY WHEEL |
| CN111572672A (en) * | 2020-06-01 | 2020-08-25 | 武义普巴机械设备有限公司 | Automatic loading and unloading transport vehicle capable of climbing stairs |
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