CN210991263U - Adjustable seat structure for wheelchair and wheelchair - Google Patents
Adjustable seat structure for wheelchair and wheelchair Download PDFInfo
- Publication number
- CN210991263U CN210991263U CN201921838067.7U CN201921838067U CN210991263U CN 210991263 U CN210991263 U CN 210991263U CN 201921838067 U CN201921838067 U CN 201921838067U CN 210991263 U CN210991263 U CN 210991263U
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- China
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- wheelchair
- rotating shaft
- seat
- seat plate
- frame body
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Abstract
The utility model relates to an adjustable seat structure and wheelchair for wheelchair, including the bedplate, one side of bedplate is articulated with the support body of wheelchair. An angle adjusting device is arranged between the seat plate and the frame body, and the angle adjusting device can adjust the angle between the seat plate and the frame body. Specifically, the support body in this application refers to the support frame that plays supporting role in the wheelchair, can be formed by fixed connection such as steel pipe or aluminum alloy pipe. The angle adjusting device comprises two supporting seats fixedly connected with the frame body, a rotating shaft is rotatably installed between the two supporting seats, the rotating shaft can rotate along the axis of the rotating shaft, and the rotating axis of the rotating shaft is parallel to the rotating axis of the seat plate along the frame body. And two ends of the rotating shaft are respectively provided with a connecting rod. The utility model discloses can solve current wheelchair when climbing stair, the unable regulation of angle between bedplate and the support body, and then the unable problem of adjusting relative angle between bedplate and the horizontal plane.
Description
Technical Field
The utility model belongs to the technical field of the wheelchair, concretely relates to adjustable seat structure and wheelchair for wheelchair.
Background
Climbing stairs belongs to weight-bearing movement, and joints below the waist bear the weight of the user, particularly the knee joints are stressed most. Old person's knee joint just has the articular cartilage degeneration of a certain degree ageing originally, goes up the stairs and can arouse knee joint pain, accelerates articular cartilage's wearing and tearing. For other people who have walking obstacles and cannot walk, the wheelchair is a necessary tool for activities.
The inventor understands that there is the wheelchair of climbing the building among the prior art, can drive the people of sitting on the wheelchair and realize climbing the operation of stair, can make things convenient for old person or have the people of walking obstacle to realize climbing the operation of stair.
However, the inventor thinks that the seat board of the existing stair climbing wheelchair is fixedly connected with the frame body, the angle between the seat board and the frame body cannot be adjusted according to the inclination angle of the stair to be climbed, and the seat board cannot be kept in a horizontal or approximately horizontal state; the person who takes the wheelchair tends to overturn backwards, which causes psychological panic to the passengers and influences the use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned prior art, provide an adjustable seat structure for wheelchair, can solve current wheelchair when climbing stair, the unable regulation of angle between bedplate and the support body, and then the unable problem of adjusting relative angle between bedplate and the horizontal plane.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an adjustable seat structure for a wheelchair comprises a seat board, wherein one side of the seat board is hinged with a frame body of the wheelchair.
An angle adjusting device is arranged between the seat plate and the frame body, and the angle adjusting device can adjust the angle between the seat plate and the frame body.
The angle adjusting device comprises two supporting seats fixedly connected with the frame body, a rotating shaft is rotatably installed between the two supporting seats, the rotating shaft can rotate along the axis of the rotating shaft, and the rotating axis of the rotating shaft is parallel to the rotating axis of the seat plate along the frame body.
The two ends of the rotating shaft are respectively provided with a connecting rod, one end of each connecting rod is fixedly connected with the rotating shaft, the other end of each connecting rod is hinged with one end of each adjusting rod, and the other end of each adjusting rod is hinged with the seat plate.
Further, the supporting seat is provided with a bearing seat, two ends of the rotating shaft are respectively supported by one bearing seat, the middle of the rotating shaft is provided with a first bevel gear, the frame body is provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the second bevel gear is driven by an adjusting motor arranged on the frame body.
Further, the second bevel gear and an output shaft of the adjusting motor are arranged coaxially.
Furthermore, the seat board and the hinged position of the frame body form a hinged point, and a backrest is arranged on one side of the upper surface of the seat board, which is far away from the hinged point.
The utility model has the advantages that:
1) the mode that the seat board is hinged with the frame body is adopted, so that a foundation is provided for the seat board to rotate on the basis of the frame body; the angle adjusting device is adopted, so that the rotation of the rotating shaft can be converted into the movement of the adjusting rod, the adjusting rod is further utilized to push the seat plate to rotate along the frame body, power is provided for the seat plate to rotate along the frame body, and the seat plate is rotated along the frame body; so that the seat plate is parallel or approximately parallel to the horizontal plane when the wheelchair climbs the slope.
2) The bevel gear transmission mode is adopted, the torque of the adjusting motor can be transmitted to the rotating shaft after being turned, and the adjusting motor is not required to be coaxially arranged with the rotating shaft.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the seat plate and the angle adjusting device of the embodiment of the present invention;
fig. 2 is a schematic view of an angle adjusting device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an adjusting lever according to an embodiment of the present invention.
Fig. 4 is a schematic view of the seat plate, the angle adjusting device, and the frame body according to the embodiment of the present invention.
In the figure: 1. a backrest; 2. a handrail; 3. adjusting a rod; 4. a connecting rod; 5. a pedal; 6. adjusting the motor; 7. a rotating shaft; 8. a seat plate; 9. a connecting plate; 10. a shelf body.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up, down, left, right" in the present invention, if appearing, are intended to correspond only to the upper, lower, left, right directions of the drawings themselves, not to limit the structure, but merely to facilitate the description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Example 1
As shown in fig. 1 to 4, there is provided an adjustable seat structure for a wheelchair, comprising a seat plate 8, wherein one side of the seat plate 8 is hinged with a frame 10 of the wheelchair. An angle adjusting device is arranged between the seat plate 8 and the frame body 10, and the angle adjusting device can adjust the angle between the seat plate 8 and the frame body 10.
Specifically, the frame 10 in this application refers to a support frame for supporting a wheelchair, and may be formed by fixedly connecting steel plates.
The angle adjusting device comprises two supporting seats fixedly connected with the frame body 10, a rotating shaft 7 is rotatably installed between the two supporting seats, the rotating shaft 7 can rotate along the axis of the rotating shaft 7, and the rotating axis of the rotating shaft 7 is parallel to the rotating axis of the seat plate 8 along the frame body 10.
A connecting rod 4 is installed respectively at the both ends of axis of rotation 7, the one end and the axis of rotation 7 fixed connection of connecting rod 4, the other end is articulated with the one end of adjusting pole 3, the other end of adjusting pole 3 is articulated with bedplate 8.
The support seat is provided with a bearing seat, two ends of the rotating shaft 7 are respectively supported by one bearing seat, the middle part of the rotating shaft 7 is provided with a first bevel gear, the support body 10 is provided with a second bevel gear, the first bevel gear is meshed with the second bevel gear, and the second bevel gear is driven by an adjusting motor 6 arranged on the support body 10.
Specifically, a shoulder should be disposed on the rotating shaft 7, so that the rotating shaft 7 can be axially positioned under the condition of being connected with the bearing seat.
The second bevel gear and the output shaft of the adjusting motor 6 are arranged coaxially.
The two connecting rods 4 are respectively arranged at two sides of the seat plate 8, and the two adjusting rods 3 are respectively arranged at two sides of the seat plate 8. The rotating shaft 7 and the adjusting motor 6 are arranged below the seat plate 8.
The seat board 8 forms a hinge point with the hinged position of the frame body 10, and a backrest 1 is arranged on one side of the upper surface of the seat board 8 far away from the hinge point. A pedal 5 is arranged on one side of the seat plate 8 close to the hinged point.
One side of the seat plate 8 is provided with a connecting plate 9 extending downwards, the upper end of the connecting plate 9 is fixedly connected with the main body of the seat plate 8, and the lower end is hinged with the frame body 10. The two sides of the backrest 1 are respectively provided with armrests 2.
In some embodiments, the connecting plate 9 may be formed as a part of the seat plate 8 integrally with the main structure of the seat plate 8, or may be separately provided and then fixedly connected together by welding or bolting.
The working principle is as follows: when using the device, the frame 10 is mounted with other parts of the wheelchair, which can be set by the person skilled in the art. When the wheelchair needs to climb, the output shaft of the adjusting motor 6 rotates to drive the rotating shaft 7 in the angle adjusting device to rotate.
The rotation of axis of rotation 7 drives connecting rod 4 minimums and rotates, and the rotation of connecting rod 4 drives the motion of adjusting pole 3, adjusts pole 3 and can move backward or go forward for the pin joint between bedplate 8 and the support body 10, and then makes bedplate 8 can rotate.
When the wheelchair climbs a slope, the frame body 10 can naturally incline at a certain angle, and the seat board 8 correspondingly rotates through the movement of the angle adjusting device, so that the seat board 8 and the horizontal plane keep a parallel or approximately parallel state. The situation that the passenger is in a backward leaning state is avoided.
In some embodiments, the adjustment of the angle of seat plate 8 may be manually adjusted by the occupant. In other embodiments, an angle sensor may be disposed on the frame body 10, and the seat plate 8 may be deflected by the same angle value in a set direction according to the deflection angle of the angle sensor.
Example 2
The embodiment provides a wheelchair, which comprises the adjustable seat structure for the wheelchair.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. An adjustable seat structure for a wheelchair is characterized by comprising a seat board, wherein one side of the seat board is hinged with a frame body of the wheelchair;
an angle adjusting device is arranged between the seat plate and the frame body and can adjust the angle between the seat plate and the frame body;
the angle adjusting device comprises two supporting seats fixedly connected with the frame body, a rotating shaft is rotatably arranged between the two supporting seats, the rotating shaft can rotate along the axis of the rotating shaft, and the rotating axis of the rotating shaft is parallel to the seat plate along the rotating axis of the frame body;
the two ends of the rotating shaft are respectively provided with a connecting rod, one end of each connecting rod is fixedly connected with the rotating shaft, the other end of each connecting rod is hinged with one end of each adjusting rod, and the other end of each adjusting rod is hinged with the seat plate.
2. The adjustable chair structure of claim 1, wherein the supporting seat is provided with a bearing seat, two ends of the rotating shaft are respectively supported by one bearing seat, the middle of the rotating shaft is provided with a first bevel gear, the frame is provided with a second bevel gear, the first bevel gear is engaged with the second bevel gear, and the second bevel gear is driven by an adjusting motor mounted on the frame.
3. The adjustable seat structure for a wheelchair as claimed in claim 2, wherein the second bevel gear is provided coaxially with an output shaft of the adjustment motor.
4. The adjustable seat structure for wheelchair as claimed in claim 1, wherein two connecting rods are respectively provided at both sides of the seat plate, and two adjusting rods are respectively provided at both sides of the seat plate.
5. The adjustable seat structure for a wheelchair as claimed in claim 4, wherein the rotation shaft and the adjustment motor are provided below the seat plate.
6. The adjustable seat structure for a wheelchair as claimed in claim 1, wherein the seat plate is hinged to the frame at a hinge point, and a backrest is provided on a side of an upper surface of the seat plate away from the hinge point.
7. The adjustable seat structure for a wheelchair as claimed in claim 1, wherein a pedal is provided on a side of the seat plate near the hinge point.
8. The adjustable seat structure for wheelchair as claimed in claim 1, wherein the seat plate has a downwardly extending connection plate at one side thereof, the connection plate having an upper end fixedly connected to the body of the seat plate and a lower end hinged to the frame body.
9. The adjustable seat structure for a wheelchair as claimed in claim 6, wherein armrests are provided on both sides of the backrest, respectively.
10. A wheelchair comprising an adjustable seat structure for a wheelchair according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921838067.7U CN210991263U (en) | 2019-10-25 | 2019-10-25 | Adjustable seat structure for wheelchair and wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921838067.7U CN210991263U (en) | 2019-10-25 | 2019-10-25 | Adjustable seat structure for wheelchair and wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210991263U true CN210991263U (en) | 2020-07-14 |
Family
ID=71466745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921838067.7U Expired - Fee Related CN210991263U (en) | 2019-10-25 | 2019-10-25 | Adjustable seat structure for wheelchair and wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210991263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113116648A (en) * | 2021-04-13 | 2021-07-16 | 聊城大学 | Bradyseism is climbed building and is walked over barrier device and wheelchair |
-
2019
- 2019-10-25 CN CN201921838067.7U patent/CN210991263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113116648A (en) * | 2021-04-13 | 2021-07-16 | 聊城大学 | Bradyseism is climbed building and is walked over barrier device and wheelchair |
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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: 20200714 Termination date: 20211025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |