CN220530255U - Front wheel connection structure for wheelchair - Google Patents
Front wheel connection structure for wheelchair Download PDFInfo
- Publication number
- CN220530255U CN220530255U CN202321343925.7U CN202321343925U CN220530255U CN 220530255 U CN220530255 U CN 220530255U CN 202321343925 U CN202321343925 U CN 202321343925U CN 220530255 U CN220530255 U CN 220530255U
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- Prior art keywords
- connecting rod
- wheelchair
- front wheel
- rotating shaft
- rack
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- 238000013016 damping Methods 0.000 claims abstract description 21
- 230000000670 limiting effect Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims 2
- 239000006096 absorbing agent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 230000009194 climbing Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 5
- 230000001603 reducing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of wheelchairs, in particular to a front wheel connecting structure for a wheelchair, which comprises a connecting rod, wherein a rack is arranged at one end of the connecting rod, a first connecting component is connected at one end of the connecting rod in a sliding manner, a height adjusting component is arranged between the first connecting piece and the rack, a second connecting component is connected at the other end of the connecting rod in a sliding manner, and a damping mechanism is arranged between the connecting rod and the second connecting component; according to the utility model, the height adjusting assembly is arranged between the connecting rod and the first connecting assembly, and the damping mechanism is arranged between the connecting rod and the second connecting assembly, so that the wheelchair has a damping effect, the experience comfort level of wheelchair passengers is enhanced, the height of the front wheels can be adjusted according to the inclination degree of the gravity center position of the wheelchair caused by inclination of the road surface during climbing or descending, and the effect that the height of the front wheels can be adjusted at any time is achieved.
Description
Technical Field
The utility model relates to the technical field of wheelchairs, in particular to a front wheel connecting structure for a wheelchair.
Background
Wheelchairs have an increasing role in the current social life, and are generally important tools for helping patients recover, live, transport people and the like, so that the wheelchairs are not only riding tools for users, but also can be used for physical exercise and social activities by means of the wheelchairs, and are valuable for society, for obtaining or using public resources provided by society and realizing own value sense.
The common wheelchair mainly comprises a seat main body, wheelchair armrests, bearing wheels, guide wheels, a connecting mechanism, a braking system, pedals and the like, and a hand shaking device is added on the basis of the common wheelchair. The electric wheelchair is based on a common wheelchair, an electronic power assisting system is added, and physical consumption of a user is reduced. The intelligent wheelchair is additionally provided with positioning movement, standing movement, remote control movement, related Internet and auxiliary life and the like on the basis of the electric wheelchair.
The prior art has the following defects in the using process:
1. in the prior art, when the wheelchair is used, the front guide wheels of the wheelchair are connected with the wheelchair main body in a rigid mode, so that the front wheels of the wheelchair cannot be damped during movement, and the damping can not be carried out according to the actual complex road surface on which the wheelchair is driven, so that the experience of users is poor, and the physical condition of some users is influenced;
2. the wheelchair in the prior art cannot adjust the height of the front wheels of the wheelchair at any time according to the complex road surface used to adapt to the road surface used, and cannot adjust the height of the front wheels according to the degree of inclination of the center of gravity of the wheelchair caused by the inclination of the road surface during climbing or descending.
In view of this, we propose a front wheel connection structure for wheelchair to solve the existing problems.
Disclosure of Invention
The utility model aims to provide a front wheel connecting structure for a wheelchair, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a front wheel connection structure for wheelchair, includes the connecting rod, the rack has been seted up to the one end of connecting rod, the one end sliding connection of connecting rod has first coupling assembling, first connecting piece with install height adjusting component between the rack, the other end sliding connection of connecting rod has second coupling assembling, the connecting rod with install damper between the second coupling assembling.
Preferably, a cavity for rotating and sliding the rack of the height adjusting assembly is formed in the first connecting assembly, and a limit groove is formed in one side of the first connecting assembly.
Preferably, the height adjusting assembly comprises a manual part, a rotating shaft and a gear, when the manual part rotates relative to the rotating shaft, the manual part is fixedly connected with one end of the rotating shaft, the other end of the rotating shaft is fixedly connected with the gear, and the gear is meshed with the rack.
Preferably, when the manual part slides relative to the rotating shaft, the manual part is in sliding connection with the rotating shaft, and the manual part is in sliding connection with the limiting groove.
Preferably, the other end of the connecting rod is provided with a plurality of sliding holes, and the sliding holes are uniformly distributed relative to the axial axis of the connecting rod 1.
Preferably, the second connecting component comprises a fixed disc and a connecting piece, one end of the fixed disc is rotationally connected with the connecting piece, and the other end of the fixed disc is fixedly connected with one end of the damping mechanism.
Preferably, the damping mechanism comprises a plurality of guide posts and elastic pieces, the elastic pieces are sleeved on the outer periphery of the guide posts, one ends of the elastic pieces are propped against the connecting rods, the other ends of the elastic pieces are propped against the fixed disc, one ends of the guide posts are fixedly connected with the fixed disc, the guide posts are in sliding connection with the connecting rods through the sliding holes, and a propping table is fixedly arranged at the other ends of the guide posts and is propped against one ends of the connecting rods.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the wheelchair, the connecting rod and the second connecting component are arranged between the front wheel of the wheelchair and the wheelchair main body, the plurality of sliding holes are formed in one end of the connecting rod, the four guide posts are arranged between the sliding holes and the fixed disc in the second connecting component in a sliding mode, and the springs are arranged on the periphery of each guide post, so that one end of each spring can be abutted to one end of the connecting rod, the other end of each spring is abutted to one side of the fixed disc, the wheelchair has a damping effect, and the experience comfort level of wheelchair passengers is enhanced.
2. According to the utility model, the rack with a certain length is arranged at one end of the connecting rod, the first connecting component is provided with the cavity for the rack to slide, meanwhile, the height adjusting component is arranged between the connecting rod and the cavity and consists of the manual part, the rotating shaft and the gear meshed with the rack, so that the height of the front wheel of the wheelchair can be adjusted at any time according to a complex road surface to adapt to the road surface to be used, the height of the front wheel can be adjusted according to the inclination degree of the gravity center position of the wheelchair caused by the inclined road surface during climbing or descending, and the effect that the height of the front wheel can be adjusted at any time is achieved.
Drawings
FIG. 1 is a schematic view of the internal structure of the present utility model;
FIG. 2 is a schematic diagram of the present utility model.
In the figure: 1. a connecting rod; 2. a rack; 3. a first connection assembly; 4. a height adjustment assembly; 5. a second connection assembly; 6. a damping mechanism; 7. a cavity; 8. a limit groove; 9. a manual member; 10. a rotating shaft; 11. a gear; 12. a slide hole; 13. a fixed plate; 14. a connecting piece; 15. a guide post; 16. an elastic member; 17. and (5) abutting against the table.
Detailed Description
The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.
Example 1
As shown in fig. 1 and 2, the front wheel connecting structure for the wheelchair provided by the utility model comprises a connecting rod 1, wherein a rack 2 is arranged at one end of the connecting rod 1, a first connecting component 3 is slidably connected at one end of the connecting rod 1, a height adjusting component 4 is arranged between the first connecting component 3 and the rack 2, a second connecting component 5 is slidably connected at the other end of the connecting rod 1, and a damping mechanism 6 is arranged between the connecting rod 1 and the second connecting component 5; when in use, the height adjusting component 4 is arranged between the connecting rod 1 and the first connecting component 3, and the damping mechanism 6 is arranged between the connecting rod 1 and the second connecting component 5, so that the wheelchair has a damping effect and achieves the effect that the height of the front wheel can be adjusted at any time.
As shown in fig. 1 and 2, the first connecting component 3 is provided with a cavity 7 for rotating the height adjusting component 4 and sliding the rack 2, and one side of the first connecting component 3 is provided with a limit groove 8, when in use, the height adjusting component 4 can rotate in the cavity 7 by arranging the cavity 7 on the first connecting component 3, and the rack 2 can slide in the cavity 7, and the manual part 9 of the height adjusting component 4 can slide into the limit groove 8 by arranging the limit groove 8 on the first connecting component 3, so that the limit groove 8 plays a role in limiting the manual part 9.
As shown in fig. 1 and 2, the height adjusting component 4 comprises a manual component 9, a rotating shaft 10 and a gear 11, when the manual component 9 rotates relative to the rotating shaft 10, the manual component 9 is fixedly connected with one end of the rotating shaft 10, the other end of the rotating shaft 10 is fixedly connected with the gear 11, the gear 11 is meshed with the rack 2, and when the height adjusting component is used, the manual component 9 is arranged in the height adjusting component 4, so that the manual component 9 can be manually rotated, and then the rotating shaft 10 is driven by the manual component 9 to rotate, and then the gear 11 and the rack 2 are meshed for transmission, so that the height of the front wheel can be changed in a manual adjusting mode.
As shown in fig. 1 and 2, when the manual piece 9 slides relative to the rotating shaft 10, the manual piece 9 is slidably connected with the rotating shaft 10, and the manual piece 9 is slidably connected with the limiting groove 8, in use, by arranging the manual piece 9 and the rotating shaft 10 to axially slide, the manual piece 9 can slide relative to the rotating shaft 10 and slide into the limiting groove 8, so that the limiting groove 8 plays a role in limiting the manual piece 9.
As shown in fig. 1 and 2, the other end of the connecting rod 1 is provided with a plurality of sliding holes 12, and the sliding holes 12 are uniformly distributed relative to the axial axis of the connecting rod 1, when in use, by providing the sliding holes 12 at one end of the connecting rod 1, the damping mechanism 6 can slide with the sliding holes 12 during damping, and further the spring can stretch and retract to achieve the damping effect.
As shown in fig. 1 and 2, the second connecting component 5 includes a fixed disk 13 and a connecting piece 14, one end of the fixed disk 13 is rotationally connected with the connecting piece 14, the other end of the fixed disk 13 is fixedly connected with one end of the damping mechanism 6, and in use, the fixed disk 13 can transmit vibration force and supporting force to a spring by arranging the fixed disk 13 in the second connecting component 5, and the connecting structure can be connected with other components of the wheelchair by arranging the connecting piece 14 rotationally connected with the fixed disk 13.
As shown in fig. 1 and 2, the damping mechanism 6 includes a plurality of guide posts 15 and elastic members 16, the elastic members 16 are sleeved on the outer periphery of the guide posts 15, one end of each elastic member 16 is abutted against the connecting rod 1, the other end of each elastic member 16 is abutted against the fixed disc 13, one end of each guide post 15 is fixedly connected with the fixed disc 13, the guide posts 15 are slidably connected with the connecting rod 1 through sliding holes 12, an abutting table 17 is fixedly arranged at the other ends of the guide posts 15, the abutting table 17 is abutted against one end of the connecting rod 1, and when the damping mechanism is used, the guide posts 15 and the elastic members 16 are arranged in the damping mechanism 6, and the elastic members 16 are preferably springs, so that the springs can stretch on the guide posts 15 and respectively abut against the connecting rod 1 and the fixed disc 13, and further the damping effect is achieved.
The working principle of the front wheel connecting structure for the wheelchair based on the first embodiment is as follows: firstly, the manual part 9 is manually rotated, the length of the connecting rod 1 in the connecting structure extending out of the first connecting component 3 is adjusted by enabling the rotation directions of the manual part 9 to be different, meanwhile, the manual part 9 rotates anticlockwise so as to drive the rotating shaft 10 to rotate anticlockwise, the rotating shaft 10 is transmitted to a rack on the connecting rod 1 through the gear 11, and therefore the connecting rod 1 extends out relative to the first connecting component 3, and at the moment, the height of the front wheel is increased; when the manual piece 9 is rotated clockwise, the manual piece 9 drives the rotating shaft 10 to rotate clockwise, the rotating piece 10 is transmitted to the gear 11, and finally the connecting rod 1 is inserted relative to the first connecting component 3, and at the moment, the height of the front wheel of the wheelchair is lowered; when the manual piece 9 does not need to be rotated, the manual piece 9 can be slid into the limit groove 8 along the rotating shaft 10, the limit groove 8 plays a role in limiting the rotating shaft 10, and then plays a role in limiting the connecting rod 1, so that the height of the front wheel of the wheelchair is fixed; the front wheel of the wheelchair achieves the effect of adapting to different inclined pavements through the adjustment; in addition, in the running process of the front wheel of the wheelchair, when the front wheel encounters a rugged road surface, vibration force is transmitted to the connecting piece 14 on the second connecting component 5 through the front wheel, vibration is transmitted to the fixed disc 13 through the connecting piece 14, and then the vibration can be relieved through the cooperation of the fixed disc 13 and the vibration reducing mechanism 6, due to the fact that the elastic piece 16 and the guide post 15 are arranged on the vibration reducing mechanism 6, when the guide post 15 does reciprocating motion relative to the connecting rod 1 in the sliding hole 12, when the guide post 15 slides to the highest position in a reciprocating manner, the abutting table 17 abuts against the middle part of the connecting rod 1, when the guide post 15 slides to the lowest position in a reciprocating manner, the abutting table 17 abuts against one end of the connecting rod 1, and then an axial limiting effect is generated, so that the vibration reducing amplitude is kept in a certain range, and due to the fact that the four guide posts 15 and springs sleeved with the four guide posts 5 are arranged between the connecting rod 1 and the second connecting component 5, the designed vibration reducing effect is better, and the guide performance and the connecting mechanism is better in connection strength.
The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.
Claims (7)
1. The utility model provides a front wheel connection structure for wheelchair, includes connecting rod (1), rack (2) have been seted up to one end of connecting rod (1), one end sliding connection of connecting rod (1) has first coupling assembling (3), its characterized in that: the novel shock absorber is characterized in that a height adjusting assembly (4) is arranged between the first connecting assembly (3) and the rack (2), the other end of the connecting rod (1) is connected with a second connecting assembly (5) in a sliding mode, and a shock absorbing mechanism (6) is arranged between the connecting rod (1) and the second connecting assembly (5).
2. The front wheel connecting structure for a wheelchair according to claim 1, wherein: the inside of first coupling assembling (3) is offered and is used for high adjusting part (4) rotation, gliding cavity (7) of rack (2), spacing groove (8) have been seted up to one side of first coupling assembling (3).
3. The front wheel connecting structure for a wheelchair according to claim 2, wherein: the height adjusting assembly (4) comprises a manual part (9), a rotating shaft (10) and a gear (11), wherein the manual part (9) rotates relative to the rotating shaft (10), the manual part (9) is fixedly connected with one end of the rotating shaft (10), the other end of the rotating shaft (10) is fixedly connected with the gear (11), and the gear (11) is meshed with the rack (2).
4. A front wheel connection structure for a wheelchair according to claim 3, characterized in that: when the manual part (9) slides relative to the rotating shaft (10), the manual part (9) is in sliding connection with the rotating shaft (10), and the manual part (9) is in sliding connection with the limiting groove (8).
5. The front wheel connecting structure for a wheelchair according to claim 1, wherein: the other end of the connecting rod (1) is provided with a plurality of sliding holes (12), and the sliding holes (12) are uniformly distributed relative to the axial axis of the connecting rod (1).
6. The front wheel connecting structure for a wheelchair according to claim 5, wherein: the second connecting assembly (5) comprises a fixed disc (13) and a connecting piece (14), one end of the fixed disc (13) is rotationally connected with the connecting piece (14), and the other end of the fixed disc (13) is fixedly connected with one end of the damping mechanism (6).
7. The front wheel connecting structure for a wheelchair according to claim 6, wherein: the damping mechanism (6) comprises a plurality of guide posts (15) and elastic pieces (16), the elastic pieces (16) are sleeved on the outer periphery of the guide posts (15), one ends of the elastic pieces (16) are abutted against the connecting rod (1), the other ends of the elastic pieces (16) are abutted against the fixed disc (13), one ends of the guide posts (15) are fixedly connected with the fixed disc (13), the guide posts (15) are in sliding connection with the connecting rod (1) through sliding holes (12), abutting tables (17) are fixedly arranged at the other ends of the guide posts (15), and the abutting tables (17) are abutted against one ends of the connecting rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321343925.7U CN220530255U (en) | 2023-05-30 | 2023-05-30 | Front wheel connection structure for wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321343925.7U CN220530255U (en) | 2023-05-30 | 2023-05-30 | Front wheel connection structure for wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220530255U true CN220530255U (en) | 2024-02-27 |
Family
ID=89976316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321343925.7U Active CN220530255U (en) | 2023-05-30 | 2023-05-30 | Front wheel connection structure for wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220530255U (en) |
-
2023
- 2023-05-30 CN CN202321343925.7U patent/CN220530255U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |