CN212281926U - Wheelchair capable of going up and down stairs - Google Patents
Wheelchair capable of going up and down stairs Download PDFInfo
- Publication number
- CN212281926U CN212281926U CN202020737357.9U CN202020737357U CN212281926U CN 212281926 U CN212281926 U CN 212281926U CN 202020737357 U CN202020737357 U CN 202020737357U CN 212281926 U CN212281926 U CN 212281926U
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- wheels
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- seat
- wheelchair
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Abstract
The utility model provides a wheelchair that can go up and down stairs, which comprises a seat, first group's wheel, second group's wheel, third group's wheel, fourth group's wheel and fifth group's wheel, first group's wheel is fixed in the seat the place ahead, second group's wheel is located first group wheel rear, and two wheels in the second group's wheel all connect the seat through a first telescopic link, first connecting axle middle part is equipped with first motor, first motor passes through the second telescopic link and connects the seat, second connecting axle middle part is equipped with the second motor, the second motor passes through third telescopic link seat, two wheels in the fifth group's wheel all connect the seat through the fourth telescopic link. The utility model has the advantages that: the utility model discloses a two first hydraulic stem, second hydraulic stem and third hydraulic stem control the second respectively according to the needs of going upstairs and downstairs and organize the wheel, the wheel of third group and the flexible of fourth group wheel to realize that the wheelchair steadily goes upstairs or downstairs.
Description
Technical Field
The utility model relates to a wheelchair field especially relates to a wheelchair that can go up and down stairs.
Background
The wheelchair is an important tool for rehabilitation, is not only a walking aid for physically disabled persons and persons with mobility disabilities, but also is more important for the persons to do physical exercises and participate in social activities by means of the wheelchair. The common wheelchair generally comprises a wheelchair frame, wheels, a brake device and a seat back. The hand-operated wheelchair is added with a hand-operated device on the basis of a common wheelchair. The electric wheelchair is additionally provided with an electronic power assisting system on the basis of a common wheelchair, so that the physical consumption of a user is reduced.
However, the wheelchair in the current market has single function, most of the wheelchair can only be used on the flat ground, and the wheelchair cannot be applied to other environments. In order to further facilitate the traveling of the people with physical disabilities or inconvenient actions, wheelchairs capable of going up and down stairs appear on the market, however, the wheelchairs are heavy in weight and cannot be manually pushed by users, so that when the people with physical disabilities or inconvenient actions travel, the second person is required to assist the whole journey, and much inconvenience is brought to the traveling of the people with physical disabilities or inconvenient actions.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a wheelchair capable of going up and down stairs.
An embodiment of the utility model provides a wheelchair capable of going up and down stairs, which comprises a seat, a first group of wheels, a second group of wheels, a third group of wheels, a fourth group of wheels and a fifth group of wheels, wherein the first group of wheels and the second group of wheels are positioned below the seat, the third group of wheels, the fourth group of wheels and the fifth group of wheels are positioned behind the seat, the first group of wheels, the second group of wheels, the third group of wheels, the fourth group of wheels and the fifth group of wheels all comprise two wheels which are bilaterally symmetrical, two wheels of the third group of wheels and two wheels of the fourth group of wheels are respectively connected through a first connecting shaft and a second connecting shaft, two wheels of the first group of wheels are respectively fixed at the forefront of the seat through connecting rods, and the second group of wheels are positioned behind the first group of wheels, two wheels in the second group of wheels are connected with the seat through a first telescopic rod, a first hydraulic rod is arranged behind the two first telescopic rods, the upper end and the lower end of the two first hydraulic rods are respectively hinged with the seat and the lower ends of the two first telescopic rods, a first motor is arranged in the middle of the first connecting shaft and connected with the seat through a second telescopic rod, a second hydraulic rod is arranged behind the second telescopic rod, the upper end and the lower end of the second hydraulic rod are respectively hinged with the seat and the lower end of the second telescopic rod, a second motor is arranged in the middle of the second connecting shaft and connected with the seat through a third telescopic rod, a third hydraulic rod is arranged behind the third telescopic rod, the upper end and the lower end of the third hydraulic rod are respectively hinged with the seat and the lower end of the third telescopic rod, and the two wheels in the fifth group of wheels are connected with the seat through a fourth telescopic rod, and a fourth hydraulic rod is respectively arranged behind the two fourth telescopic rods, and the upper ends and the lower ends of the two fourth hydraulic rods are respectively hinged with the seat and the lower ends of the two fourth telescopic rods.
Further, a mechanical arm for grasping the armrest is arranged behind the seat.
Furthermore, pressure sensors are arranged between the two connecting rods, the two first hydraulic rods, the second hydraulic rod and the third hydraulic rod and the seat.
Furthermore, two ultrasonic sensors are respectively arranged at the lower ends of the two connecting rods, the lower ends of the two first hydraulic rods, the lower ends of the second hydraulic rods and the lower end of the third hydraulic rod.
Furthermore, two wheels in the fifth group of wheels are respectively connected with a third motor and a fourth motor.
Further, the fourth telescopic rod is located between the first telescopic rod and the second telescopic rod, and the fourth hydraulic rod is located between the first hydraulic rod and the second hydraulic rod.
Further, the first, second, third, and fourth sets of wheels each have an outer diameter that is less than an outer diameter of the fifth set of wheels.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the wheelchair capable of going upstairs and downstairs of the utility model respectively controls the second group of wheels, the third group of wheels and the fourth group of wheels to stretch according to the requirements of going upstairs and downstairs through the two first hydraulic rods, the second hydraulic rod and the third hydraulic rod, so that the wheelchair can go upstairs or downstairs stably; in addition, when the wheelchair needs to run on the flat ground, only the second group of wheels, the third group of wheels and the fourth group of wheels need to be retracted, so that the wheelchair can run stably under the support of the first group of wheels and the fifth group of wheels.
Drawings
Fig. 1 is a schematic structural view of a wheelchair capable of going up and down stairs.
Fig. 2 is a bottom view of the wheelchair capable of going up and down stairs.
Fig. 3 is a left side view of the wheelchair capable of going up and down stairs.
Fig. 4 is a schematic view of the installation of the pressure sensor 21 in fig. 1.
Fig. 5 shows a first state of the wheelchair capable of going up and down stairs according to the present invention.
Fig. 6 shows a second state of the wheelchair capable of going upstairs and downstairs.
Fig. 7 shows a first state of the wheelchair capable of going upstairs and downstairs.
Fig. 8 shows a second state of the wheelchair capable of going upstairs and downstairs according to the present invention.
In the figure: 1-seat, 2-first group of wheels, 3-second group of wheels, 4-third group of wheels, 5-fourth group of wheels, 6-fifth group of wheels, 7-first connecting shaft, 8-second connecting shaft, 9-connecting rod, 10-first telescopic rod, 11-first hydraulic rod, 12-first motor, 13-second telescopic rod, 14-second hydraulic rod, 15-second motor, 16-third telescopic rod, 17-third hydraulic rod, 18-fourth telescopic rod, 19-fourth hydraulic rod, 20-mechanical arm, 21-pressure sensor, 22-third motor, 23-fourth motor and 24-ultrasonic sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1 and 2, an embodiment of the present invention provides a wheelchair capable of going up and down stairs, including a seat 1, a first set of wheels 2, a second set of wheels 3, a third set of wheels 4, a fourth set of wheels 5, and a fifth set of wheels 6, wherein the first set of wheels 2 and the second set of wheels 3 are located below the seat 1, the third set of wheels 4, the fourth set of wheels 5, and the fifth set of wheels 6 are located behind the seat 1, the first set of wheels 2, the second set of wheels 3, the third set of wheels 4, the fourth set of wheels 5, and the fifth set of wheels 6 all include two wheels that are bilaterally symmetric, and in this embodiment, the outer diameters of the first set of wheels 2, the second set of wheels 3, the third set of wheels 4, and the fourth set of wheels 5 are all smaller than the outer diameter of the fifth set of wheels 6.
Two wheels in the first group of wheels 2 are fixed to the forefront of the seat 1 through connecting rods 9 respectively, the second group of wheels 3 are located behind the first group of wheels 2, two wheels in the second group of wheels 3 are connected to the seat 1 through first telescopic rods 10, two first hydraulic rods 11 are arranged behind the first telescopic rods 10 respectively, the upper ends and the lower ends of the two first hydraulic rods 11 are hinged to the lower ends of the seat 1 and the two first telescopic rods 10 respectively, and the two first hydraulic rods 11 are used for driving the two first telescopic rods 10 to stretch up and down respectively.
The two wheels of the third group of wheels 4 and the two wheels of the fourth group of wheels 5 are respectively connected through a first connecting shaft 7 and a second connecting shaft 8, a first motor 12 is arranged in the middle of the first connecting shaft 7, the first motor 12 is connected with the seat 1 through a second telescopic rod 13, a second hydraulic rod 14 is arranged behind the second telescopic rod 13, the upper end and the lower end of the second hydraulic rod 14 are respectively hinged with the seat 1 and the lower end of the second telescopic rod 13, and the second hydraulic rod 14 is used for driving the second telescopic rod 13 to extend up and down; the middle of the second connecting shaft 8 is provided with a second motor 15, the second motor 15 is connected with the seat 1 through a third telescopic rod 16, a third hydraulic rod 17 is arranged behind the third telescopic rod 16, the upper end and the lower end of the third hydraulic rod 17 are respectively hinged with the lower ends of the seat 1 and the third telescopic rod 16, the third hydraulic rod 17 is used for driving the third telescopic rod 16 to extend up and down, in the embodiment, the first motor 12 and the second motor 15 are respectively used for driving the first connecting shaft 7 and the second connecting shaft 8 to rotate, so that the third group of wheels 4 and the fourth group of wheels 5 are respectively driven to rotate, and the wheelchair is enabled to advance or retreat.
Referring to fig. 3, two wheels of the fifth set of wheels 6 are all connected to the seat 1 through fourth telescopic rods 18, a fourth hydraulic rod 19 is respectively disposed behind the two fourth telescopic rods 18, upper and lower ends of the two fourth hydraulic rods 19 are respectively hinged to the seat 1 and lower ends of the two fourth telescopic rods 18, the fourth telescopic rods 18 are located between the first telescopic rods 10 and the second telescopic rods 13, the fourth hydraulic rods 19 are located between the first hydraulic rods 11 and the second hydraulic rods 14, in this embodiment, two wheels of the fifth set of wheels 6 are respectively connected to a third motor 22 and a fourth motor 23, the third motor 22 and the fourth motor 23 are used for driving two wheels of the fifth set of wheels 6 to rotate, specifically, when the wheelchair is running on a flat ground, only the second set of wheels 3, the third set of wheels 4, and the fourth set of wheels 5 need to be retracted, and the fifth group of wheels 6 is extended, and the first group of wheels 2 and the fifth group of wheels 6 land, so that the wheelchair can run smoothly by the driving of the third motor 22 and the fourth motor 23.
Referring to fig. 1 and 4, a mechanical arm 20 for grasping a handrail is disposed behind the seat 1, in the embodiment, a small roller (not shown in the drawings) is mounted inside the mechanical arm 20, and the mechanical arm 20 can grasp the handrail beside the stairs on one hand, and on the other hand, the mechanical arm 20 can move along the handrail under the action of the small roller, so that accidents caused by the balance loss of the wheelchair when going up and down the stairs can be prevented. In the utility model, pressure sensors 21 are arranged between the two connecting rods 9, the two first hydraulic rods 11, the second hydraulic rods 14, the third hydraulic rod 17 and the seat 1, and the pressure sensors 21 are used for detecting whether the first group of wheels 2, the second group of wheels 3, the third group of wheels 4 and the fourth group of wheels 5 are suspended; two ultrasonic sensors 24 are respectively arranged at the lower ends of the two connecting rods 9, the lower ends of the two first hydraulic rods 11, the lower ends of the second hydraulic rods 14 and the lower end of the third hydraulic rod 17, wherein one ultrasonic sensor 24 is used for measuring the distance in the horizontal direction, and the other ultrasonic sensor 24 is used for measuring the distance in the vertical direction.
The utility model discloses in the wheelchair is gone upstairs and is being moved backward upward, and the control method of each group's wheel when going upstairs is:
the fifth group of wheels 6 are respectively retracted through the two fourth telescopic rods 18 and the two fourth hydraulic rods 19, the wheelchair moves backwards to a step under the driving of the first motor 12 and the second motor 15, the mechanical arm 20 is controlled to grasp an armrest, then the wheelchair is continuously controlled to move backwards to prepare for going upstairs, and meanwhile, the ultrasonic sensors 24 monitor the distance between each group of wheels and the step in real time. In the process of going upstairs, if the fourth group of wheels 5 is detected to be close to a step, the third hydraulic rod 17 controls the fourth group of wheels 5 to retract; if the third group of wheels 4 is detected to be close to a step, the second hydraulic rod 14 controls the third group of wheels 4 to retract upwards; if the second group of wheels 3 is detected to be close to a step, the two first hydraulic rods 11 control the second group of wheels 3 to retract (refer to fig. 5); if the first group of wheels 2 is detected to approach a step, the two first hydraulic rods 11, the second hydraulic rods 14 and the third hydraulic rods 17 simultaneously control the second group of wheels 3, the third group of wheels 4 and the fourth group of wheels 5 to extend; if the fourth group of wheels 5 and the second group of wheels 3 are detected to approach the step simultaneously, the third hydraulic rod 17 and the first hydraulic rods 11 control the fourth group of wheels 5 and the second group of wheels 3 to retract simultaneously; if the fourth set of wheels 5 and the first set of wheels 2 are detected to approach the step simultaneously, the second hydraulic rod 14 and the first hydraulic rods 11 control the third set of wheels 4 and the second set of wheels 3 to extend simultaneously, and the third hydraulic rod 17 controls the fourth set of wheels 5 to retract (refer to fig. 6); if the third group of wheels 4 and the second group of wheels 3 approach the step at the same time, the second hydraulic rod 14 and the first hydraulic rods 11 control the third group of wheels 4 and the second group of wheels 3 to retract at the same time; if the third set of wheels 4 and the first set of wheels 2 are detected to approach the step simultaneously, the third hydraulic rod 17 and the first hydraulic rods 11 control the fourth set of wheels 5 and the second set of wheels 3 to extend simultaneously, and the second hydraulic rod 14 controls the third set of wheels 4 to retract.
The utility model discloses in the control method of each group's wheel when the wheelchair goes downstairs does:
the fifth group of wheels 6 are respectively retracted through the two fourth telescopic rods 18 and the two fourth hydraulic rods 19, the wheelchair moves to the position above the step under the driving of the first motor 12 and the second motor 15, the mechanical arm 20 is controlled to grab the handrail, then the wheelchair is continuously controlled to move forward to prepare for going downstairs, and meanwhile, the pressure sensors 21 monitor whether the wheels of each group are suspended in the air in real time. During the process of going downstairs, if the first group of wheels 2 is detected to be suspended, the two first hydraulic rods 11, the second hydraulic rod 14 and the third hydraulic rod 17 control the second group of wheels 3, the third group of wheels 4 and the fourth group of wheels 5 to be retracted simultaneously (refer to fig. 7); if the second group of wheels 3 are detected to be suspended, the two first hydraulic rods 11 control the second group of wheels 3 to extend; if the third group of wheels 4 are detected to be suspended, the second hydraulic rod 14 controls the third group of wheels 4 to extend; if the fourth group of wheels 5 is detected to be suspended, the third hydraulic rod 17 controls the fourth group of wheels 5 to extend; if the first set of wheels 2 and the third set of wheels 4 are detected to be simultaneously suspended, the first hydraulic rod 11 and the third hydraulic rod 17 simultaneously control the second set of wheels 3 and the fourth set of wheels 5 to retract, and the second hydraulic rod 14 controls the third set of wheels 4 to extend (refer to fig. 8); if the first group of wheels 2 and the fourth group of wheels 5 are detected to be suspended simultaneously, the first hydraulic rod 11 and the second hydraulic rod 14 control the second group of wheels 3 and the third group of wheels 4 to retract simultaneously, and the third hydraulic rod 17 controls the fourth group of wheels 5 to extend; if the second group of wheels 3 and the third group of wheels 4 are detected to be suspended simultaneously, the first hydraulic rods 11 and the second hydraulic rods 14 control the second group of wheels 3 and the third group of wheels 4 to extend simultaneously; if the second group of wheels 3 and the fourth group of wheels 5 are detected to be simultaneously suspended, the first hydraulic rod 11 and the third hydraulic rod 17 simultaneously control the second group of wheels 3 and the fourth group of wheels 5 to extend.
The wheelchair capable of going upstairs and downstairs of the utility model respectively controls the second group of wheels 3, the third group of wheels 4 and the fourth group of wheels 5 to extend and retract according to the requirements of going upstairs and downstairs by the two first hydraulic rods 11, the second hydraulic rods 14 and the third hydraulic rods 17, so that the wheelchair can go upstairs or downstairs stably; in addition, when the wheelchair needs to run on the flat ground, only the second group of wheels 3, the third group of wheels 4 and the fourth group of wheels 5 need to be retracted, so that the wheelchair can run stably under the support of the first group of wheels 2 and the fifth group of wheels 6.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A wheelchair capable of going up and down stairs is characterized in that: including seat, first group wheel, second group wheel, third group wheel, fourth group wheel and fifth group wheel, first group wheel with the second group wheel is located the seat below, third group wheel, fourth group wheel with the fifth group wheel is located the seat rear, first group wheel, second group wheel, third group wheel, fourth group wheel with the fifth group wheel all includes bilateral symmetry's two wheels, just between the two wheels of third group wheel and between the two wheels of fourth group wheel respectively through first connecting axle and second connecting axle, two wheels in the first group wheel are fixed through the connecting rod respectively the seat forefront, the second group wheel is located first group wheel rear, two wheels in the second group wheel all connect through a first telescopic link the seat, a first hydraulic rod is arranged behind the two first telescopic rods, the upper ends and the lower ends of the two first hydraulic rods are respectively hinged with the seat and the lower ends of the two first telescopic rods, a first motor is arranged in the middle of the first connecting shaft and connected with the seat through a second telescopic rod, a second hydraulic rod is arranged behind the second telescopic rod, the upper end and the lower end of the second hydraulic rod are respectively hinged with the seat and the lower end of the second telescopic rod, a second motor is arranged in the middle of the second connecting shaft and connected with the seat through a third telescopic rod, a third hydraulic rod is arranged behind the third telescopic rod, the upper end and the lower end of the third hydraulic rod are respectively hinged with the seat and the lower end of the third telescopic rod, two wheels in the fifth group of wheels are connected with the seat through fourth telescopic rods, and a fourth hydraulic rod is arranged behind the two fourth telescopic rods, the upper ends and the lower ends of the two fourth hydraulic rods are respectively hinged with the seat and the lower ends of the two fourth telescopic rods.
2. The wheelchair of claim 1, wherein the wheelchair further comprises: and a mechanical arm for grasping the armrest is arranged behind the seat.
3. The wheelchair of claim 1, wherein the wheelchair further comprises: pressure sensors are arranged between the two connecting rods, the two first hydraulic rods, the second hydraulic rod, the third hydraulic rod and the seat.
4. The wheelchair of claim 1, wherein the wheelchair further comprises: two ultrasonic sensors are respectively arranged at the lower ends of the two connecting rods, the lower ends of the two first hydraulic rods, the lower ends of the second hydraulic rods and the lower end of the third hydraulic rod.
5. The wheelchair of claim 1, wherein the wheelchair further comprises: and two wheels in the fifth group of wheels are respectively connected with a third motor and a fourth motor.
6. The wheelchair of claim 5, wherein: the fourth telescopic rod is positioned between the first telescopic rod and the second telescopic rod, and the fourth hydraulic rod is positioned between the first hydraulic rod and the second hydraulic rod.
7. The wheelchair of claim 5, wherein: the first set of wheels, the second set of wheels, the third set of wheels, and the fourth set of wheels all have an outer diameter that is less than an outer diameter of the fifth set of wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020737357.9U CN212281926U (en) | 2020-05-07 | 2020-05-07 | Wheelchair capable of going up and down stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020737357.9U CN212281926U (en) | 2020-05-07 | 2020-05-07 | Wheelchair capable of going up and down stairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212281926U true CN212281926U (en) | 2021-01-05 |
Family
ID=73967109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020737357.9U Expired - Fee Related CN212281926U (en) | 2020-05-07 | 2020-05-07 | Wheelchair capable of going up and down stairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212281926U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111631872A (en) * | 2020-05-07 | 2020-09-08 | 中国地质大学（武汉） | Wheelchair capable of going up and down stairs |
| CN111631872B (en) * | 2020-05-07 | 2024-05-31 | 中国地质大学（武汉） | Wheelchair capable of going upstairs and downstairs |
-
2020
- 2020-05-07 CN CN202020737357.9U patent/CN212281926U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111631872A (en) * | 2020-05-07 | 2020-09-08 | 中国地质大学（武汉） | Wheelchair capable of going up and down stairs |
| CN111631872B (en) * | 2020-05-07 | 2024-05-31 | 中国地质大学（武汉） | Wheelchair capable of going upstairs and downstairs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |