Shifting wheelchair
By designing a rotating and height-adjustable transfer wheelchair, the problem of wheelchair users falling while getting into bed is solved, resulting in a safer and more convenient bed-getting experience.
Patent Information
- Application Number
- CN202421056372.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-15
AI Technical Summary
Existing wheelchair users are prone to falling due to insufficient strength when transitioning from wheelchair to bed, especially those with leg muscle atrophy or weakened arm strength. The training process is also difficult and affects their self-confidence.
A movable wheelchair was designed, which uses a geared motor and an output motor to drive the meshing of internal and external gears to achieve 90-degree rotation and height adjustment of the wheelchair body. Combined with the angle adjustment of the handrest, it ensures that the wheelchair fits snugly against the bed and adapts to different bed heights.
It reduces the probability of wheelchair users falling when getting from the wheelchair to the bed, reduces the labor intensity and difficulty, and improves the convenience and safety of getting into bed.
Smart Images
Figure CN222304186U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheelchairs, in particular to a shifting wheelchair. Background Art
[0002] A wheelchair is a mobility tool designed for people with limited mobility that helps users move around in different environments, improving their independence and quality of life;
[0003] When using existing wheelchairs, wheelchair users will experience varying degrees of leg muscle atrophy, and their leg muscles will often spasm. Those with damaged spines will also have greatly weakened arm strength. In the instant of transferring from the wheelchair to the bed, they do not have enough strength, and attempts often fail. They may even fall from the wheelchair to the ground due to lack of strength, and their legs may spasm. In addition, the training process is difficult, which undermines their self-confidence.
[0004] In order to solve the above problems, a shifting wheelchair is proposed in the present application. Utility Model Content
[0005] In order to solve the problems raised in the above background technology, the utility model provides a shifting wheelchair, which can facilitate wheelchair users to get on the bed and can adjust the height of the wheelchair according to the height of different beds.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shifting wheelchair, including a frame, a bottom plate is fixedly connected to the middle of the inner side of the frame, a hollow column is fixedly connected to the middle of the top of the bottom plate, a reduction motor is fixedly connected to the lower part of the hollow column, an internal gear is fixedly connected to the output end of the reduction motor, an external gear is slidably connected to the inner side of the internal gear, a rotating column is fixedly connected to the top of the external gear, a wheelchair body is fixedly connected to the top of the rotating column, a backrest is provided on the rear end surface of the wheelchair body, a footrest is provided on the front end surface of the wheelchair body, and hand rests are rotatably connected to the left and right end surfaces of the backrest.
[0007] As a preferred shifting wheelchair of the utility model, the outer side of the internal gear is rotatably connected to the upper part of the inner part of the hollow column, and the bottom of the rotating column is in contact with the top of the hollow column. The wheelchair body can be rotated ninety degrees, making it more convenient for the wheelchair user to support himself to get into bed with his hands. At the same time, after the wheelchair body approaches the bedside and rotates ninety degrees, the wheelchair body can be started again to make the wheelchair body close to the bedside, thereby reducing the probability of the wheelchair user falling due to the gap between the wheelchair body and the bedside.
[0008] As a preferred shift wheelchair of the utility model, a rotating shaft is provided on the top of the hand rest, and the rotating shaft is distributed on the top of the left and right sides of the backrest. The direction and angle of rotation of the hand rest through the rotating shaft is ninety degrees from the top to the front, so that the hand rest can be rotated to the front top ninety degrees upward, avoiding the hand rest blocking the wheelchair body and the bedside, affecting the wheelchair user's getting into bed.
[0009] As a preferred shifting wheelchair of the utility model, the tooth pitch on the inner side of the inner gear matches the tooth pitch on the outer side of the outer gear, and the depth on the inner side of the inner gear is the same as the overall thickness of the outer gear. The purpose of driving the rotating column and the wheelchair body to rotate by the reduction motor can be achieved through the meshing of the inner gear and the outer gear.
[0010] As a preferred shifting wheelchair of the utility model, the front and rear sides of the top of the bottom plate are fixedly connected with a hollow shell, the right end face of the hollow shell is fixedly connected with an output motor, the output end of the output motor is fixedly connected with a bidirectional threaded rod, the outer side of the bidirectional threaded rod is spirally connected with a moving block, the top of the moving block is rotatably connected with a connecting rod, and the end of the connecting rod away from the moving block is rotatably connected with a top plate, the top of the top plate contacts the front and rear sides of the lower end face of the wheelchair body, the left top end of the bidirectional threaded rod is rotatably connected to the middle of the left top end of the hollow shell, the outer side of the moving block is slidably connected to the inner wall of the hollow shell, and the outer side of the connecting rod is slidably connected to the upper middle of the inside of the hollow shell, so that the height of the wheelchair body can be adjusted according to the height of the bed, to avoid the wheelchair body being too high or too low in height, affecting the wheelchair user on the wheelchair body from getting in or out of bed, and reducing the probability of falling when getting in and out of bed.
[0011] As a preferred shift wheelchair of the utility model, the output motor can rotate forward and reverse, the number of moving blocks inside the hollow shell is two, and the moving blocks are distributed on the outside of the bidirectional threaded rod, an internal thread is arranged inside the moving block, and the pitch of the internal thread matches the pitch of the bidirectional threaded rod, so that the output motor drives the bidirectional threaded rod to move the moving block outside the bidirectional threaded rod inward or outward, thereby achieving the purpose of sliding the top plate up and down.
[0012] As a preferred shifting wheelchair of the utility model, a through groove is opened from left to right in the middle of the upper part of the hollow shell, and the width of the through groove matches the cross-sectional diameter of the connecting rod, so that the connecting rod can extend from the upper part of the hollow shell to drive the top plate on its top to move upward or downward.
[0013] The utility model has the following beneficial effects:
[0014] The transfer wheelchair designed by the utility model can rotate the wheelchair body by 90 degrees through design coordination, so that the wheelchair user can more conveniently support himself to get into bed with his hands. At the same time, after the wheelchair body approaches the bedside and rotates by 90 degrees, the wheelchair body is started again to make the wheelchair body close to the bedside, thereby reducing the probability of the wheelchair user falling due to the gap between the wheelchair body and the bedside, and at the same time reducing the difficulty and labor intensity of the wheelchair user getting from the wheelchair body to the bed to a certain extent.
[0015] The shifting wheelchair designed by the utility model is designed so that the height of the wheelchair body can be adjusted according to the height of the bed. At the same time, an outer gear and an inner gear are arranged at the bottom of the rotating column which drives the wheelchair body to rotate, so that the wheelchair body can move up and down with the top plate, and can be driven by the reduction motor to rotate when retracted downward. The height of the wheelchair body can be adjusted by moving upward, so as to avoid the wheelchair body being too high or too low, which affects the wheelchair user on the wheelchair body to get in or out of bed, and reduce the probability of falling when getting in and out of bed. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the overall structure of the frame of the utility model;
[0019] Figure 3 It is a schematic diagram of the vertical section three-dimensional structure of the hollow column of the utility model;
[0020] Figure 4 It is a schematic diagram of the vertical cross-section of the hollow shell of the utility model.
[0021] Legend:
[0022] 1. Frame; 2. Wheelchair body; 3. Backrest; 4. Handrest; 5. Footrest; 6. Output motor; 7. Bottom plate; 8. Hollow column; 9. Rotating column; 10. Hollow shell; 11. Top plate; 12. Reducer motor; 13. Internal gear; 14. External gear; 15. Bidirectional threaded rod; 16. Moving block; 17. Connecting rod. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Example 1
[0025] like Figure 1-Figure 4 As shown;
[0026] A shifting wheelchair comprises a frame 1.
[0027] When using existing wheelchairs, wheelchair users will have varying degrees of leg muscle atrophy, and their leg muscles will often spasm. Those with higher spinal cord damage will also have greatly weakened arm strength. In the instant of moving from the wheelchair to the bed, there is not enough strength, and attempts often fail. In the process, they may even fall to the ground from the wheelchair due to lack of strength. The legs may spasm, and the training process is difficult, which undermines self-confidence. Combined with actual use, this problem is obviously a real problem that is difficult to solve. In view of this, in order to solve this technical problem, an output motor and a reduction motor are added to this application document.
[0028] According to the above content, in order to facilitate wheelchair users to get into bed, it also includes a frame 1, a bottom plate 7 is welded in the middle of the inner side of the frame 1, a hollow column 8 is welded in the middle of the top of the bottom plate 7, a reduction motor 12 is fixed by bolts at the bottom of the hollow column 8, the output end of the reduction motor 12 passes through the middle of the inner gear 13 and is welded, the inner side of the inner gear 13 is sleeved on the outer side of the outer gear 14 and slides, a rotating column 9 is welded on the top of the outer gear 14, a wheelchair body 2 is welded on the top of the rotating column 9, a backrest 3 is arranged on the rear end face of the wheelchair body 2, a footrest 5 is arranged on the front end face of the wheelchair body 2, the left and right end faces of the backrest 3 are connected to the handrest 4 through a rotating shaft, the outer side of the inner gear 13 is rotatably connected to the top of the hollow column 8, and the bottom of the rotating column 9 is in contact with the top of the hollow column 8.
[0029] In this embodiment: the wheelchair body 2 can be rotated ninety degrees, so that the wheelchair user can more conveniently support himself to get into bed with his hands. At the same time, after the wheelchair body 2 approaches the bedside and rotates ninety degrees, the wheelchair body 2 is started again to make the wheelchair body 2 close to the bedside, thereby reducing the probability of the wheelchair user falling due to the gap between the wheelchair body 2 and the bedside.
[0030] In an optional embodiment: a rotating shaft is provided at the top of the palm rest 4, and the rotating shaft is distributed at the top of the left and right sides of the backrest 3, and the direction and angle of rotation of the palm rest 4 through the rotating shaft is ninety degrees from the top to the front.
[0031] In this embodiment, the hand rest 4 can be rotated to the front top end upward by 90 degrees to avoid the hand rest 4 blocking the wheelchair body 2 and the bedside, which affects the wheelchair user's getting into bed.
[0032] In an optional embodiment, the tooth pitch of the inner side of the internal gear 13 matches the tooth pitch of the outer side of the external gear 14 , and the depth of the inner side of the internal gear 13 is the same as the overall thickness of the external gear 14 .
[0033] In this embodiment, the inner gear 13 and the outer gear 14 can be meshed to achieve the purpose of driving the rotating column 9 and the wheelchair body 2 to rotate through the reduction motor 12.
[0034] According to the above content, in order to be able to adjust the height of the wheelchair according to the height of different beds, it also includes a hollow shell 10 welded on the front and rear sides of the top of the bottom plate 7, the right end face of the hollow shell 10 is fixed with bolts to the output motor 6, the output end of the output motor 6 passes through the inside of the two-way threaded rod 15 and is welded and fixed, the outer side of the two-way threaded rod 15 passes through the inside of the moving block 16 and is spirally connected with the internal thread inside the moving block 16, the top of the moving block 16 is connected to the connecting rod 17 through a fixed shaft, and the end of the connecting rod 17 away from the moving block 16 is connected to the top plate 11 through a fixed shaft, the top of the top plate 11 contacts the front and rear sides of the lower end face of the wheelchair body 2, the left top of the two-way threaded rod 15 is rotatably connected to the middle of the left top inside the hollow shell 10, the outer side of the moving block 16 is slidably connected to the inner wall of the hollow shell 10, and the outer side of the connecting rod 17 is slidably connected to the middle of the upper part of the inside of the hollow shell 10.
[0035] In this embodiment, the height of the wheelchair body 2 can be adjusted according to the height of the bed to avoid the wheelchair body 2 being too high or too low, which affects the wheelchair user on the wheelchair body 2 from getting in or out of bed, thereby reducing the probability of falling when getting in or out of bed.
[0036] In an optional embodiment: the output motor 6 can rotate forward and reverse, there are two moving blocks 16 inside the hollow shell 10, and the moving blocks 16 are distributed on the outside of the bidirectional threaded rod 15, an internal thread is arranged inside the moving block 16, and the pitch of the internal thread matches the pitch of the bidirectional threaded rod 15.
[0037] In this embodiment, the output motor 6 drives the bidirectional threaded rod 15 to move the moving block 16 outside the bidirectional threaded rod 15 inward or outward, so that the top plate 11 can slide up and down.
[0038] In an optional embodiment, a through slot extending from left to right is opened in the middle of the upper part of the hollow shell 10 , and the width of the through slot matches the cross-sectional diameter of the connecting rod 17 .
[0039] In this embodiment, the connecting rod 17 extends out from the upper part of the hollow shell 10 to drive the top plate 11 on the top thereof to move upward or downward.
[0040] The working principle and use process of the utility model are as follows: the wheelchair user sits on the wheelchair body 2, and the lower body leans on the backrest 3, and the footrest 5 can also be opened to support the lower leg upward. When the wheelchair user needs to go to bed to rest, the wheelchair body 2 is driven to the bedside, and the reduction motor 12 located above the inner bottom plate 7 of the frame 1 is turned on. The reduction motor 12 is arranged inside the hollow column 8. The output end of the reduction motor 12 drives the inner gear 13 above the hollow column 8 to rotate, and the outer gear 14 inside the inner gear 13 rotates with the inner gear 13, and the rotating column 9 on the top of the outer gear 14 drives the wheelchair body 2 to rotate. , the rotation angle is ninety degrees, until the wheelchair user is flush with the bedside, turn on the output motor 6 set on the right end face of the hollow shell 10 under the wheelchair body 2, the output motor 6 drives the bidirectional threaded rod 15 at the output end to rotate, and the moving block 16 outside the bidirectional threaded rod 15 moves toward the center of the bidirectional threaded rod 15, and the connecting rod 17 at the top of the moving block 16 drives the top plate 11 to push up, and the top of the top plate 11 contacts the bottom of the wheelchair body 2 until the height of the wheelchair body 2 is flush with the bed, and then rotate the hand support 4 upward, the wheelchair user can slowly move from the wheelchair body 2 to the bedside, reducing the difficulty of the wheelchair user getting on the bed.
[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A transfer wheelchair, comprising a frame (1), characterized in that: A bottom plate (7) is fixedly connected to the middle of the inner side of the frame (1), a hollow column (8) is fixedly connected to the middle of the top of the bottom plate (7), a reduction motor (12) is fixedly connected to the lower part of the hollow column (8), an internal gear (13) is fixedly connected to the output end of the reduction motor (12), an external gear (14) is slidably connected to the inner side of the internal gear (13), a rotating column (9) is fixedly connected to the top of the external gear (14), a wheelchair body (2) is fixedly connected to the top of the rotating column (9), a backrest (3) is provided on the rear end surface of the wheelchair body (2), a footrest (5) is provided on the front end surface of the wheelchair body (2), and handrests (4) are rotatably connected to the left and right end surfaces of the backrest (3).
2. A transfer wheelchair according to claim 1, characterized in that: The outer side of the internal gear (13) is rotatably connected to the upper part of the inner part of the hollow column (8), and the bottom of the rotating column (9) is in contact with the top of the hollow column (8).
3. The transfer wheelchair according to claim 1, characterized in that: A rotating shaft is arranged at the top of the hand rest (4), and the rotating shaft is distributed at the top of the left and right sides of the backrest (3). The direction and angle of rotation of the hand rest (4) through the rotating shaft is 90 degrees from the top to the front.
4. The transfer wheelchair according to claim 1, characterized in that: The tooth pitch on the inner side of the internal gear (13) matches the tooth pitch on the outer side of the external gear (14), and the depth on the inner side of the internal gear (13) is the same as the overall thickness of the external gear (14).
5. The transfer wheelchair according to claim 1, characterized in that: The hollow shell (10) is fixedly connected to the front and rear sides of the top of the bottom plate (7); the right end face of the hollow shell (10) is fixedly connected to the output motor (6); the output end of the output motor (6) is fixedly connected to a bidirectional threaded rod (15); the outer side of the bidirectional threaded rod (15) is spirally connected to a moving block (16); the top of the moving block (16) is rotatably connected to a connecting rod (17); the end of the connecting rod (17) away from the moving block (16) is rotatably connected to a top plate (11); the top of the top plate (11) contacts the front and rear sides of the lower end face of the wheelchair body (2); the left top end of the bidirectional threaded rod (15) is rotatably connected to the middle of the left top end inside the hollow shell (10); the outer side of the moving block (16) is slidably connected to the inner wall of the hollow shell (10); the outer side of the connecting rod (17) is slidably connected to the middle of the upper part of the inside of the hollow shell (10).
6. A transfer wheelchair according to claim 5, characterized in that: The output motor (6) can rotate forward and reverse. There are two moving blocks (16) inside the hollow shell (10), and the moving blocks (16) are distributed on the outside of the bidirectional threaded rod (15). An internal thread is arranged inside the moving block (16), and the pitch of the internal thread matches the pitch of the bidirectional threaded rod (15).
7. The transfer wheelchair according to claim 5, characterized in that: A through slot extending from left to right is provided in the middle of the upper part of the hollow shell (10), and the width of the through slot matches the cross-sectional diameter of the connecting rod (17).