CN113599099A - Wheelchair rear wheel shock-absorbing structure - Google Patents
Wheelchair rear wheel shock-absorbing structure Download PDFInfo
- Publication number
- CN113599099A CN113599099A CN202110964180.5A CN202110964180A CN113599099A CN 113599099 A CN113599099 A CN 113599099A CN 202110964180 A CN202110964180 A CN 202110964180A CN 113599099 A CN113599099 A CN 113599099A
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- Prior art keywords
- connecting plate
- frame
- wheel
- hinged
- supporting plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
Abstract
The invention discloses a rear wheel damping structure of a wheelchair, which belongs to the field of damping wheels and comprises a frame, wherein the front end of the frame is provided with a lower connecting plate, the bottom of the lower connecting plate is hinged with a transverse supporting plate, a wheel supporting plate is arranged above the transverse connecting plate, the bottoms of two sides of the wheel supporting plate are provided with rear wheels, and the two rear wheels are respectively provided with a motor for driving; the middle of the transverse connecting plate is provided with a hinged shaft along the direction of the wheel, and the wheel supporting plate is arranged on the hinged shaft and can swing above the transverse connecting plate; the frame comprises a frame, and is characterized in that two sides of a transverse connecting plate are respectively provided with a lower hinged block, a lower hinged hole is formed in the lower hinged block, two sides of the rear end of the frame are respectively provided with an upper hinged block, an upper hinged hole is formed in the upper hinged block, the frame further comprises two spring shock absorbers, and two ends of each spring shock absorber are respectively hinged with the upper hinged block and the lower hinged hole. The invention can ensure the shock absorption and stability of the rear wheel and meet the ground gripping performance of the rear wheel at the same time through the structure.
Description
Technical Field
The invention relates to the field of damping wheels, in particular to a damping structure for a rear wheel of a wheelchair.
Background
At present wheelchair shock-absorbing structure is mostly that wheel top sets up a damping spring and realizes the shock attenuation, sets up a damping spring on four wheels respectively, though satisfied the shock attenuation effect, but the in-service use process, unusual unstability, that is to say at the shock attenuation process, rocks very badly, and this effect seriously influences experience.
Secondly, because the wheels are arranged at the bottom of the frame, once one wheel is raised when meeting an obstacle, the other wheel at the front and the back is necessarily in an emptying state, although the spring can reduce the emptying height, the ground gripping effect is greatly reduced, especially the rear wheel is emptied, and the direction is difficult to adjust (the adjustment of the wheelchair direction is realized by utilizing the differential speed of the two rear wheels, and once a certain rear wheel cannot grip the ground, the relative motion of the two wheels cannot be realized).
In view of the problems in the prior art, the invention designs and manufactures a rear wheel damping structure of a wheelchair by combining years of design and use experience of related fields and assisting with over-strong professional knowledge, so as to overcome the defects.
Disclosure of Invention
For the problems in the prior art, the rear wheel damping structure of the wheelchair can ensure the damping and stability of the rear wheel and meet the ground gripping performance of the rear wheel.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a rear wheel damping structure of a wheelchair comprises a frame, wherein a lower connecting plate is arranged at the front end of the frame, a transverse supporting plate is hinged to the bottom of the lower connecting plate, a wheel supporting plate is arranged above the transverse connecting plate, rear wheels are arranged at the bottoms of two sides of the wheel supporting plate, and the two rear wheels are respectively provided with a motor for driving;
the middle of the transverse connecting plate is provided with a hinged shaft along the direction of a wheel, and the wheel supporting plate is arranged on the hinged shaft and can swing above the transverse connecting plate;
the frame comprises a frame body and is characterized in that two sides of the transverse connecting plate are respectively provided with a lower hinging block, a lower hinging hole is formed in the lower hinging block, two sides of the rear end of the frame are respectively provided with an upper hinging block, an upper hinging hole is formed in the upper hinging block, the frame body further comprises two spring shock absorbers, and two ends of each spring shock absorber are respectively hinged to the upper hinging block and the lower hinging hole.
Preferably, the frame height is greater than the wheel support plate height.
Preferably, the two spring dampers are symmetrically arranged.
The invention has the advantages that:
1. the wheel supporting plate can swing through the hinge shaft and is combined with the two spring shock absorbers, under the condition that shock absorption is guaranteed, the two rear wheels can be always in contact with the ground, so that the direction control of the speed adjustment of the two rear wheels is further guaranteed, the two rear wheels are supported through the wheel supporting plate, and the overall stability can be improved through the wheel supporting plate when a certain rear wheel suddenly bumps.
2. The invention utilizes the transverse supporting plate hinged at the bottom of the lower connecting plate and combines the two spring shock absorbers, thereby ensuring the shock absorption effect in the front and back directions.
Drawings
FIG. 1 is a schematic view of a rear wheel shock absorbing structure of a wheelchair;
figure 2 is a side view of a rear wheel shock absorbing structure of a wheelchair.
In the figure: 1-vehicle frame, 2-wheel support plate, 3-rear wheel, 4-spring shock absorber, 5-upper hinge block, 6-lower hinge block, 7-transverse support plate, 8-articulated shaft, 9-motor and 10-lower connecting plate.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the rear wheel damping structure of the wheelchair comprises a frame 1, wherein a lower connecting plate 10 is arranged at the front end of the frame 1, a transverse supporting plate 7 is hinged to the bottom of the lower connecting plate 10, a wheel supporting plate 2 is arranged above the transverse connecting plate, the height of the frame 1 is greater than that of the wheel supporting plate 2, rear wheels 3 are arranged at the bottoms of two sides of the wheel supporting plate 2, and the two rear wheels 3 are respectively provided with a motor 9 for driving;
the middle of the transverse connecting plate is provided with a hinged shaft 8 along the direction of a wheel, and the wheel supporting plate 2 is arranged on the hinged shaft 8 and can swing above the transverse connecting plate;
the frame comprises a frame body, and is characterized in that two sides of a transverse connecting plate are respectively provided with a lower hinged block 6, a lower hinged hole is formed in the lower hinged block 6, two sides of the rear end of the frame body 1 are respectively provided with an upper hinged block 5, the upper hinged block 5 is provided with an upper hinged hole, the frame further comprises two spring dampers 4, two ends of each spring damper 4 are respectively hinged with the upper hinged block 5 and the lower hinged hole, and the two spring dampers 4 are symmetrically arranged.
The wheel supporting plate 2 can swing through the hinge shaft 8, and the two spring shock absorbers 4 are combined, so that under the condition of ensuring shock absorption, the two rear wheels 3 can be always in contact with the ground, the direction control of the two-wheel speed adjustment is further ensured, the two rear wheels 3 are supported through the wheel supporting plate 2, and the overall stability can be improved through the wheel supporting plate 2 when the rear wheels 3 suddenly bump.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (3)
1. A rear wheel damping structure of a wheelchair is characterized by comprising a frame, wherein a lower connecting plate is arranged at the front end of the frame, a transverse supporting plate is hinged to the bottom of the lower connecting plate, a wheel supporting plate is arranged above the transverse connecting plate, rear wheels are arranged at the bottoms of two sides of the wheel supporting plate, and the two rear wheels are respectively provided with a motor for driving;
the middle of the transverse connecting plate is provided with a hinged shaft along the direction of a wheel, and the wheel supporting plate is arranged on the hinged shaft and can swing above the transverse connecting plate;
the frame comprises a frame body and is characterized in that two sides of the transverse connecting plate are respectively provided with a lower hinging block, a lower hinging hole is formed in the lower hinging block, two sides of the rear end of the frame are respectively provided with an upper hinging block, an upper hinging hole is formed in the upper hinging block, the frame body further comprises two spring shock absorbers, and two ends of each spring shock absorber are respectively hinged to the upper hinging block and the lower hinging hole.
2. The wheelchair rear wheel suspension of claim 1 wherein said frame height is greater than said wheel support plate height.
3. The wheelchair rear wheel suspension of claim 1 wherein said spring dampers are symmetrically disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964180.5A CN113599099A (en) | 2021-08-21 | 2021-08-21 | Wheelchair rear wheel shock-absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964180.5A CN113599099A (en) | 2021-08-21 | 2021-08-21 | Wheelchair rear wheel shock-absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113599099A true CN113599099A (en) | 2021-11-05 |
Family
ID=78309090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110964180.5A Withdrawn CN113599099A (en) | 2021-08-21 | 2021-08-21 | Wheelchair rear wheel shock-absorbing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113599099A (en) |
-
2021
- 2021-08-21 CN CN202110964180.5A patent/CN113599099A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20211105 |
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| WW01 | Invention patent application withdrawn after publication |