CN216798058U - Wheelchair capable of protecting safety and facilitating going up and down stairs - Google Patents
Wheelchair capable of protecting safety and facilitating going up and down stairs Download PDFInfo
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- CN216798058U CN216798058U CN202123344162.1U CN202123344162U CN216798058U CN 216798058 U CN216798058 U CN 216798058U CN 202123344162 U CN202123344162 U CN 202123344162U CN 216798058 U CN216798058 U CN 216798058U
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- wheelchair
- vertical seat
- tripod
- wheels
- supporting rod
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Abstract
The utility model provides a wheelchair capable of protecting safety and facilitating going up and down stairs, which comprises a wheelchair body, wherein front wheels of the wheelchair body are triangular wheels, a connecting rod is arranged between wheels of two rear wheels of the wheelchair body, two ends of the connecting rod, which are close to the two ends, are respectively sleeved with an asymmetric bearing sleeve through bearings, and the asymmetric bearing sleeves are fixedly connected to one side of a connecting piece; the upper portion and the lower portion of the connecting piece are respectively sleeved with an upper portion vertical seat supporting rod and a lower portion vertical seat supporting rod, the upper portion vertical seat supporting rod is fixedly connected with a seat, and the lower portion vertical seat supporting rod is connected with a front side vertical seat supporting rod through a cross rod. The wheelchair ensures that the sitting direction of a user is vertical and upward under any condition, is suitable for climbing stairs, runs stably on a ramp road, increases the application range of the wheelchair, and has simple structure and low cost.
Description
Technical Field
The utility model belongs to the technical field of wheelchairs, and particularly relates to a wheelchair which is safe in protection and convenient to go up and down stairs.
Background
The wheelchair is an important tool for rehabilitation, not only is the walking tool for the physically disabled, but also is more important for the physically disabled to exercise 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 rest; the existing wheelchair is inconvenient to go up and down stairs and has limitation in use; when going uphill or downhill, the user may face a shift in the center of gravity due to leaning back or looking down, which may cause a fall.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide the wheelchair which is safe in protection and convenient for going upstairs and downstairs, is suitable for climbing stairs, stably runs on a ramp road, increases the application range of the wheelchair, and has simple structure and low cost.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
a wheelchair capable of protecting safety and facilitating going up and down stairs comprises a wheelchair body, wherein the front wheels of the wheelchair body are triangular wheels, a connecting rod is arranged between the wheels of two rear wheels of the wheelchair body, the connecting rod is sleeved with asymmetric bearing sleeves through bearings at the positions close to the two ends of the connecting rod respectively, and the asymmetric bearing sleeves are fixedly connected to one side of a connecting piece;
the upper portion and the lower portion of the connecting piece are respectively sleeved with an upper portion vertical seat supporting rod and a lower portion vertical seat supporting rod, the upper portion vertical seat supporting rod is fixedly connected with the seat, and the lower portion vertical seat supporting rod is connected with a front side vertical seat supporting rod through a cross rod.
The utility model also has the following technical characteristics:
preferably, the triangle wheel comprises a tripod, the center of the tripod is rotatably connected with a connecting frame through a central bolt, and the connecting frame is fixedly connected with the front side vertical seat supporting rod;
the tripod is close to each apex all to be provided with the through-hole, the through-hole on respectively through bolted connection with a small-size wheel.
Furthermore, two sides of the small wheel are symmetrically provided with a tripod and a connecting frame connected with the tripod.
Furthermore, the center distance between two adjacent small wheels is 20 cm.
Preferably, each asymmetric bearing sleeve is mounted with the connecting rod through two parallel bearings.
Compared with the prior art, the utility model has the following technical effects:
according to the utility model, through the design of the asymmetric bearing sleeve, the gravity center of the seat can be always kept in the vertical direction, so that the sitting posture direction of a user in any condition is ensured to be vertically upward, meanwhile, through the design of the triangular wheel, the wheelchair is suitable for stair climbing and stably runs on a ramp road, the application range of the wheelchair is increased, the fear of the user in the process of climbing up and down the ramp is reduced, the use comfort level is increased, the structure is simple, and the cost is low.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the triangle wheel structure of the present invention;
FIG. 3 is an exploded view of a portion of the structure of the present invention;
FIG. 4 is an exploded view of a portion of the structure of the present invention;
the meaning of each red label in the figure is: 1-wheelchair body, 2-triangular wheel, 3-wheel , 4-connecting rod, 5-bearing, 6-asymmetric bearing sleeve, 7-connecting piece, 8-upper vertical seat supporting rod, 9-lower vertical seat supporting rod, 10-cross rod, 11-front vertical seat supporting rod, 12-tripod, 13-central bolt, 14-connecting frame, 15-through hole, 16-bolt and 17-small wheel.
Detailed Description
The present invention will be explained in further detail with reference to examples.
As shown in fig. 1 to 4, the wheelchair for protecting safety and facilitating going up and down stairs provided in the present embodiment includes a wheelchair body 1, a front wheel of the wheelchair body 1 is set as a triangular wheel 2, a connecting rod 4 is arranged between wheels 3 of two rear wheels of the wheelchair body 1, two ends of the connecting rod 4 near the connecting rod 4 are respectively sleeved with an asymmetric bearing sleeve 6 through a bearing 5, and the asymmetric bearing sleeves 6 are fixedly connected to one side of a connecting piece 7; the weight below the asymmetric bearing sleeve 6 is large, so that when the connecting rod 4 rotates, the asymmetric bearing sleeve 6 and the connecting piece 7 can always keep the gravity center in the vertical direction, the wheelchair seat is always ensured to be vertically upward, and the sitting posture direction of a user in any situation is vertically upward.
The upper portion and the lower portion of connecting piece 7 are equipped with upper portion vertical seat bracing piece 8 and lower part vertical seat bracing piece 9 respectively in the cover, and upper portion vertical seat bracing piece 8 and seat fixed connection, lower part vertical seat bracing piece 9 is connected with the vertical seat bracing piece 11 of front side through horizontal pole 10. The cooperation of the upper and lower vertical seat support bars 8, 9 and the front vertical seat support bar 11 support the seat. The crossbar 10 extends out of the rear of the seat to provide footrests to assist the wheelchair in climbing uneven ground.
The triangular wheel 2 comprises a tripod 12, the center of the tripod 12 is rotatably connected with a connection 14 through a central bolt 13, and the connection 14 is fixedly connected with the front side vertical seat support rod 11; the tripod 12 is provided with a through hole 15 near each vertex, and a small wheel 17 is connected to each through hole 15 through a bolt 16. When the flat ground moves forwards, the two small wheels 17 simultaneously touch the ground and rotate around the respective bolts 16, the wheelchair moves forwards stably, when climbing stairs, the small wheel 17 at the upper part firstly moves to the upper step, and the triangular wheel 2 rotates around the central bolt 13 to move to the upper step.
The two sides of the small wheel 17 are respectively symmetrically provided with a tripod 12 and a connecting frame 14 connected with the tripod 12, so that the structure is more stable.
The center distance between two adjacent small-size wheels 17 is 20cm, and the climbing height of most of stairs is met.
Each asymmetric bearing bush 6 is mounted with the connecting rod 4 by means of two juxtaposed bearings 5, so that the asymmetric bearing bushes 6 are always kept in the vertical direction.
The utility model works according to the following principle:
the weight below the asymmetric bearing sleeve 6 is large, the asymmetric bearing sleeve 6 is fixedly connected to one side of the connecting piece 7, so that when the connecting rod 4 rotates, the asymmetric bearing sleeve 6 and the connecting piece 7 can always keep the gravity center in the vertical direction, the wheelchair seat is always ensured to be vertically upward, the sitting posture direction of a user in any situation is vertically upward, the sitting posture direction of the user in any situation is ensured to be vertically upward when the wheelchair is on a road with slopes up and down, the wheelchair can run stably, the application range of the wheelchair is expanded, the fear of the inner center of the user in the process of climbing up and down the slopes is reduced, and the use comfort level is increased;
when the flat ground moves forwards, the two small wheels 17 simultaneously touch the ground and rotate around the respective bolts 16, the wheelchair moves forwards stably, when climbing stairs, the small wheel 17 at the upper part firstly moves to the upper step, and the triangular wheel 2 rotates around the central bolt 13 to move to the upper step.
It should be noted that the above embodiments are not all embodiments of the present invention, and the deduction or the equivalent substitution made by those skilled in the art can be made without departing from the concept of the present invention.
Claims (5)
1. The wheelchair capable of protecting safety and facilitating going upstairs and downstairs is characterized by comprising a wheelchair body (1), wherein the front wheel of the wheelchair body (1) is set to be a triangular wheel (2), a connecting rod (4) is arranged between wheels (3) of two rear wheels of the wheelchair body (1), two ends, close to the connecting rod (4), of the connecting rod are respectively sleeved with an asymmetric bearing sleeve (6) through a bearing (5), and the asymmetric bearing sleeves (6) are fixedly connected to one side of a connecting piece (7);
the upper portion and the lower portion of connecting piece (7) overlap respectively and be equipped with vertical seat bracing piece (8) in upper portion and the vertical seat bracing piece (9) in lower part, vertical seat bracing piece (8) in upper portion and seat fixed connection, vertical seat bracing piece (9) in lower part be connected with the vertical seat bracing piece of front side (11) through horizontal pole (10).
2. The wheelchair as claimed in claim 1, which is safe and convenient for going up and down stairs, wherein the triangular wheel (2) comprises a tripod (12), the center of the tripod (12) is rotatably connected with a connecting frame (14) through a central bolt (13), and the connecting frame (14) is fixedly connected with the front vertical seat supporting rod (11);
the tripod (12) be close to each apex all be provided with through-hole (15), through-hole (15) on each be connected with a small-size wheel (17) through bolt (16).
3. The wheelchair for going upstairs and downstairs with safety protection as claimed in claim 2, wherein the small-size wheel (17) is symmetrically provided with a tripod (12) and a connecting frame (14) connected with the tripod (12) at both sides.
4. The wheelchair for going upstairs and downstairs with safety protection as claimed in claim 3, wherein the center distance between two adjacent small wheels (17) is 20 cm.
5. The wheelchair as claimed in claim 1, wherein each of the asymmetric bearing housings (6) is mounted to the connecting rod (4) by means of two bearings (5) arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123344162.1U CN216798058U (en) | 2021-12-28 | 2021-12-28 | Wheelchair capable of protecting safety and facilitating going up and down stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123344162.1U CN216798058U (en) | 2021-12-28 | 2021-12-28 | Wheelchair capable of protecting safety and facilitating going up and down stairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216798058U true CN216798058U (en) | 2022-06-24 |
Family
ID=82055816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123344162.1U Active CN216798058U (en) | 2021-12-28 | 2021-12-28 | Wheelchair capable of protecting safety and facilitating going up and down stairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216798058U (en) |
-
2021
- 2021-12-28 CN CN202123344162.1U patent/CN216798058U/en active Active
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