Rehabilitation instrument for patients with leg diseases
By designing a linkage between the seat cushion mechanism and the leg support mechanism, patients with leg ailments have solved the inconvenience and safety hazards of getting on and off the electric transfer machine using rehabilitation equipment, achieving a safe up-and-down process without turning around, and improving the user experience.
Patent Information
- Application Number
- CN202423260404.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-27
AI Technical Summary
When patients with leg problems get on and off the electric transfer machine, their footrests can easily block their movement, causing inconvenience and a risk of falling. They may also have difficulty finding the seat, resulting in the safety hazard of sitting on an empty seat.
A rehabilitation device for patients with leg disorders has been designed, comprising a seat mechanism and a footrest mechanism. The coordinated movement of the seat and footrest is achieved through a linkage mechanism and a drive component, allowing patients to safely get on and off the device without turning around.
This ensures the safety and convenience of patients when getting on and off the device, avoids the risk of falls and sitting on the wrong spot, and improves the safety and comfort of use.
Smart Images
Figure CN223731641U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rehabilitation equipment technology, and in particular to a rehabilitation equipment for patients with leg disorders. Background Technology
[0002] In existing technologies, patients or elderly people with mobility impairments who want to move independently usually need to use electric transfer machines. However, when patients get on and off the electric transfer machine, they are often blocked by the footrest, which makes them move tiptoe and risk falling, which is very inconvenient. In addition, because patients have difficulty moving, it is difficult for them to turn around and find the position of the seat like normal people when getting on and off the electric transfer machine. They can only find the position of the seat by feeling, which leads to the risk of sitting on the ground, which is very unsafe. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rehabilitation device for patients with leg disorders. It aims to solve the problems in the existing technology, where patients are often blocked by the footrest when getting on and off the electric transfer machine, which makes them move tiptoe and risk falling. This is very inconvenient. In addition, due to the patient's limited mobility, it is difficult for them to turn around and find the position of the seat like a normal person when getting on and off the electric transfer machine. They can only find the position of the seat by feeling, which leads to the risk of sitting on the buttocks without a seat, which is very unsafe.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0005] A rehabilitation device for patients with leg disorders includes a frame, a backrest, a seat cushion mechanism, and a foot support mechanism disposed on the frame. The seat cushion mechanism includes a slide rail plate fixedly connected to the frame, a seat cushion portion slidably disposed on the slide rail plate, and a drive assembly for driving the seat cushion portion to slide toward the foot support mechanism. The foot support mechanism includes a bearing seat fixedly connected to the frame and a foot support plate rotatably disposed on the bearing seat. A linkage mechanism is provided between the seat cushion portion and the foot support plate. The linkage mechanism includes a telescopic rod rotatably disposed below the seat cushion portion and a bearing sleeve rotatably disposed on the bearing seat. The telescopic rod includes a main rod disposed near the seat cushion portion and a secondary rod disposed near the foot support plate. The secondary rod is slidably disposed within the main rod and is connected to the main rod by a spring. The secondary rod is slidably disposed within the bearing sleeve.
[0006] According to one aspect of the above technical solution, the slide rail plate is provided with a sliding cavity, the sliding cavity is provided with a sliding groove, and the side of the seat cushion is provided with a slider that cooperates with the sliding groove.
[0007] According to one aspect of the above technical solution, the driving assembly includes a first rotating shaft rotatably disposed in the sliding cavity, a gear fixedly connected to the first rotating shaft, a rack disposed on the seat cushion, and a rotating structure for driving the first rotating shaft to rotate, wherein the gear meshes with the rack.
[0008] According to one aspect of the above technical solution, the rotating structure includes a servo motor mounted on the frame, a second rotating shaft, a first steering gear connecting the servo motor and the second rotating shaft, and a second steering gear connecting the second rotating shaft and the first rotating shaft.
[0009] According to one aspect of the above technical solution, the frame is fixedly connected to the first steering gear via an inclined plate, and a protective shell is sleeved on the first rotating shaft. The two ends of the protective shell are fixedly connected to the slide rail plate and the second steering gear, respectively.
[0010] According to one aspect of the above technical solution, the bearing seat includes a fixing block fixedly connected to the frame, an abutment plate disposed on the fixing block, and a third rotating shaft fixedly connected to the fixing block. The frame foot plate is rotatably connected to the third rotating shaft, and the frame foot plate is located above the abutment plate.
[0011] According to one aspect of the above technical solution, the support plate includes a straight part and an inclined part integrally formed, the inclined part is inclined from bottom to top, the third rotating shaft is disposed through the straight part, and the action point of the sub-rod is located above the inclined part.
[0012] According to one aspect of the above technical solution, a fourth rotating shaft is fixedly connected to the fixed block, and the bearing sleeve is rotatably connected to the fourth rotating shaft.
[0013] According to one aspect of the above technical solution, the frame is also provided with walking wheels and a walking motor, and the walking motor is used to drive the walking wheels to move.
[0014] According to one aspect of the above technical solution, the frame is also slidably provided with handrails and control switches for controlling the start and stop of the servo motor.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] By incorporating a seat cushion mechanism and a footrest mechanism, when a patient sitting on the seat needs to stand up, the drive assembly can slide the seat cushion towards the footrest mechanism, moving the patient as far outward as possible from the instrument's range, facilitating their ascent. Because a linkage mechanism exists between the seat cushion and the footrest, when the seat cushion moves outward, it presses one end of the footrest via a telescopic rod, causing the footrest to rotate around the bearing seat, thereby lifting the footrest. Specifically, the sub-rod remains above the footrest due to the limiting effect of the bearing sleeve. When the seat cushion moves outward, the main rod drives the sub-rod to press one end of the footrest, causing the footrest to rotate around the bearing seat, thus lifting the footrest. As the bearing seat rotates and lifts, when the footplate reaches its maximum rotation distance (at which point the footplate rotation angle is greater than 80°, allowing the patient to enter and exit smoothly), the sub-rod will continue to move downwards as the seat cushion moves, causing the spring to compress until the seat cushion reaches its maximum movement distance. At this point, the patient is completely away from the device. When the patient needs to enter the device, they only need to sit on the seat cushion that has been moved out, and then the drive assembly will operate in reverse, and each structure will return to its original position. When the patient's feet enter the footplate, the spring will fully reset, causing the sub-rod to gradually disengage from the footplate, and then the footplate will return to a horizontal state.
[0017] This invention makes it easier for patients to get on and off the instruments without having to turn around to check the position between their buttocks and the cushion, thus avoiding dangerous situations. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the rehabilitation device for leg patients in the first embodiment of this utility model;
[0019] Figure 2 for Figure 1 Structural diagram of the middle seat cushion, linkage mechanism, and support leg mechanism;
[0020] Figure 3 for Figure 2 Exploded view of the structure at the central linkage mechanism;
[0021] Figure 4 for Figure 2 Structural diagram of the central support frame mechanism;
[0022] Figure 5 for Figure 2 Exploded view of the structure at the central support frame mechanism;
[0023] Figure 6 for Figure 1 A schematic diagram of the middle seat cushion mechanism from a first-person perspective;
[0024] Figure 7 for Figure 1 A schematic diagram of the middle seat cushion mechanism from a second-view perspective;
[0025] Figure 8 for Figure 6 A schematic diagram of the middle seat cushion mechanism after removing the slide rail and protective shell;
[0026] Explanation of key component symbols:
[0027]
[0028]
[0029] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation
[0030] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0031] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0032] Unless otherwise defined, 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0033] Please see Figures 1 to 8The image shows a rehabilitation device for leg patients according to the first embodiment of this utility model, including a frame 10, a backrest 20, a seat cushion mechanism 30, and a leg support mechanism 40 disposed on the frame 10. The seat cushion mechanism 30 includes a slide rail plate 70 fixedly connected to the frame 10, a seat cushion portion 31 slidably disposed on the slide rail plate 70, and a driving assembly for driving the seat cushion portion 31 to slide toward the leg support mechanism 40. The leg support mechanism 40 includes a bearing seat fixedly connected to the frame 10, and a leg plate 4 rotatably disposed on the bearing seat. 4. A linkage mechanism 50 is provided between the seat cushion 31 and the footrest 44. The linkage mechanism 50 includes a telescopic rod rotatably disposed below the seat cushion 31 and a bearing sleeve 41 rotatably disposed on the bearing seat. The telescopic rod includes a mother rod 51 disposed near the seat cushion 31 and a daughter rod 52 disposed near the footrest 44. The daughter rod 52 is slidably disposed within the mother rod 51. The daughter rod 52 and the mother rod 51 are connected by a spring 53. The daughter rod 52 is slidably disposed within the bearing sleeve 41.
[0034] Understandably, this utility model, by setting up a seat cushion mechanism 30 and a footrest mechanism 40, allows the patient sitting on the seat cushion 31 to slide towards the footrest mechanism 40 when they need to get up. This moves the patient as far outward as possible from the instrument's range, facilitating their getting up. Because a linkage mechanism 50 is provided between the seat cushion 31 and the footrest 44, when the seat cushion 31 moves outward, it presses one end of the footrest 44 through a telescopic rod, causing the footrest 44 to rotate around the bearing seat and thus lift the footrest 44. Specifically, the sub-rod 52 remains above the footrest 44 due to the limiting effect of the bearing sleeve 41. When the seat cushion 31 moves outward, the main rod 51 drives the sub-rod 52 to press the footrest 44. One end of 4 causes the footplate 44 to rotate and lift around the bearing seat. When the footplate 44 reaches the maximum rotation distance (at this time, the rotation angle of the footplate 44 is greater than 80°, which allows the patient to enter and exit smoothly), as the seat cushion 31 moves, the sub-rod 52 will continue to move downward, which will compress the spring 53 until the seat cushion 31 reaches the maximum movement distance. At this time, the patient is completely away from the device. When the patient needs to enter the device, he / she only needs to sit on the seat cushion 31 that has been moved out, and then let the drive component operate in reverse, and the structure can return to its original position in reverse. When the patient's foot enters the footplate 44, the spring 53 will be fully reset, so that the sub-rod 52 gradually disengages from the footplate 44, and then the footplate 44 will return to the horizontal state.
[0035] This invention makes it easier for patients to get on and off the instruments without having to turn around to check the position between their buttocks and the cushion, thus avoiding dangerous situations.
[0036] Specifically, in this embodiment, the slide rail plate 70 is provided with a sliding cavity 33, the sliding cavity 33 is provided with a sliding groove, and the side of the seat cushion 31 is provided with a slider 32 that cooperates with the sliding groove; the driving assembly includes a first rotating shaft 39 rotatably disposed in the sliding cavity 33, a gear 61 fixedly connected to the first rotating shaft 39, a rack 62 disposed on the seat cushion 31, and a rotating structure for driving the first rotating shaft 39 to rotate, the gear 61 meshing with the rack 62; the rotating structure includes a servo motor 37 disposed on the frame 10, a second rotating shaft 34, a first steering gear 35 connecting the servo motor 37 and the second rotating shaft 34, and a second steering gear 38 connecting the second rotating shaft 34 and the first rotating shaft 39; the frame 10 is also slidably provided with an armrest 12 and a control switch 13 for controlling the start and stop of the servo motor 37.
[0037] Understandably, when the patient needs to move the seat cushion 31 outward, they can press the control switch 13 and grip the armrest 12. The servo motor 37 starts and, through the linkage of the first steering gear 35, the second rotating shaft 34, the second steering gear 38, and the first rotating shaft 39, drives the gear 61 to rotate. The gear 61 then meshes with the rack 62 on the seat cushion 31, causing the rack 62 and the seat cushion 31 to move outward. When the seat cushion 31 moves outward, it maintains stability by engaging the slider 32 with the groove on the slide rail 70. Since the patient's hand is always holding the armrest 12, the armrest 12 presses against the frame 10 as the seat cushion 31 moves. Therefore, there is no need to worry about the patient falling during the movement of the seat cushion 31. When the patient needs to use the device, they sit on the seat cushion 31 and press the control switch 13. The servo motor 37 rotates in the opposite direction, and all structures return to their positions.
[0038] Preferably, the slide rail 70 and the seat cushion 31 are made of high-strength materials to ensure stability during the sliding process and prevent excessive deformation during long-term use. A flexible pad (not shown in the figure) can be placed on the seat cushion 31 to improve comfort. A damping structure can be used between the armrest 12 and the frame 10 to increase friction and prevent the armrest 12 from returning to its original position due to gravity or slight external force after the patient is removed from the device, so that the patient has nowhere to put their hands when they get on the device again. The first steering device 35 and the second steering device 38 have a bevel gear 61 structure inside, which can stably transmit power and change direction.
[0039] Furthermore, the frame 10 is fixedly connected to the first steering device 35 via an inclined plate 36, and a protective shell is fitted on the first rotating shaft 39. The two ends of the protective shell are fixedly connected to the slide rail plate 70 and the second steering device 38, respectively.
[0040] Understandably, the above structure is designed to fix the positions of the first steering gear 35 and the second steering gear 38, and to hide the first pivot 39, thereby improving aesthetics and protecting the first pivot 39 from environmental erosion.
[0041] Furthermore, the bearing housing includes a fixing block 43 fixedly connected to the frame 10, an abutment plate 46 disposed on the fixing block 43, and a third rotating shaft 45 fixedly connected to the fixing block 43. The frame foot plate 44 is rotatably connected to the third rotating shaft 45, and the frame foot plate 44 is located above the abutment plate 46. The frame foot plate 44 includes a straight portion 441 and an inclined portion 442 integrally formed. The inclined portion 442 is inclined from bottom to top. The third rotating shaft 45 is disposed through the straight portion 441. The action point of the sub-rod 52 is located above the inclined portion 442. A fourth rotating shaft 42 is fixedly connected to the fixing block 43, and the bearing sleeve 41 is rotatably connected to the fourth rotating shaft 42.
[0042] Understandably, when the seat cushion 31 moves outward, since the main rod 51 is rotatably connected to the seat cushion 31 and the secondary rod 52 is rotatably connected to the bearing sleeve 41, the main rod 51 and the secondary rod 52 will adaptively adjust their direction, ensuring that the secondary rod 52 is always above the footplate 44. The reason for setting the inclined portion 442 and the straight portion 441 is that when the secondary rod 52 presses against the inclined portion 442, even when the straight portion 441 is at a full 90 degrees, the secondary rod 52 still has a point of action on the inclined portion 442, thus allowing the straight portion 441 to rotate further. At large angles, without the inclined section 442, the rotation angle of the straight section 441 would be limited, which would affect the passability. The lower part of the foot plate 44 is provided with a stop plate 46. Under normal conditions, the stop plate 46 contacts the lower part of the straight section 441 and plays a limiting role. When the inclined section 442 rotates to a certain angle, it will contact the back of the stop plate 46, thus reaching the maximum rotation angle. When the sub-rod 52 disengages from the inclined section 442, the straight section 441 will fall back onto the stop plate 46 due to gravity.
[0043] It should be noted that the adjacent positions between the inclined part 442 and the abutment plate 46 are chamfered to prevent them from colliding during rotation.
[0044] Furthermore, the frame 10 is also equipped with a walking wheel 11 and a walking motor, the walking motor being used to drive the walking wheel 11 to move.
[0045] It is understandable that there is a linkage structure between the walking motor (not shown in the figure) and the walking wheel 11. The linkage structure is located inside the frame 10 and is existing technology, so it will not be described in detail here.
[0046] In summary, the rehabilitation device for leg patients described in the above embodiments of this utility model allows patients to easily get on and off the device without having to turn around to check the position between their buttocks and the cushion, thus avoiding dangerous situations.
[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0048] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A rehabilitation device for patients with leg disorders, characterized in that, The utility model provides a chair, including frame body, and be located on the backrest of frame body, cushion mechanism and frame foot mechanism, the cushion mechanism includes the slide rail board fixed connection with frame body, the cushion part of slide of slide rail board, and drive assembly of drive cushion part to slide towards frame foot mechanism, frame foot mechanism includes the bearing seat fixed connection with frame body, and the frame foot plate of rotation of bearing seat is established on, the linkage mechanism is equipped between the cushion part and the frame foot plate, the linkage mechanism includes the telescopic rod of rotation of below the cushion part, and the bearing cover of rotation of bearing seat is established, the telescopic rod includes the female pole of setting near the cushion part side, and the son pole of setting near the frame foot plate side, the son pole is established in the female pole of slide, the son pole and the female pole between through spring connection, the son pole is established in the bearing cover of slide.
2. The rehabilitation device for leg disease patients according to claim 1, characterized by The slide cavity is arranged in the slide rail plate, and the slide cavity is provided with a sliding groove, and the side surface of the cushion part is provided with a sliding block matched with the sliding groove.
3. The rehabilitation device for leg disease patients according to claim 2, characterized by The drive assembly includes a first rotating shaft rotatably arranged in the slide cavity, a gear fixedly connected to the first rotating shaft, a rack arranged on the cushion part, and a rotating structure for driving the first rotating shaft to rotate, and the gear is engaged with the rack.
4. The rehabilitation machine for leg disease patients according to claim 3, wherein The rotating structure includes a servo motor arranged on the frame body, a second rotating shaft, a first steering device connecting the servo motor and the second rotating shaft, and a second steering device connecting the second rotating shaft and the first rotating shaft.
5. The rehabilitation machine for patients with leg diseases according to claim 4, characterized by The frame body and the first steering device are fixedly connected through an inclined plate, a protective shell is sleeved on the first rotating shaft, and both ends of the protective shell are fixedly connected with the slide rail plate and the second steering device.
6. The leg disease patient rehabilitation apparatus according to claim 1, wherein The bearing seat includes a fixed block fixedly connected with the frame body, an abutting plate arranged on the fixed block, and a third rotating shaft fixedly connected to the fixed block, the frame foot plate is rotatably connected with the third rotating shaft, and the frame foot plate is located above the abutting plate.
7. The rehabilitation device for leg disease patients according to claim 6, wherein The frame foot plate includes a flat portion and an inclined portion integrally formed, the inclined portion is inclined from bottom to top, the third rotating shaft penetrates through the flat portion, and the action point of the son pole is located above the inclined portion.
8. The rehabilitation machine for leg disease patients according to claim 6, characterized by The fourth rotating shaft is fixedly connected to the fixed block, and the bearing cover is rotatably connected with the fourth rotating shaft.
9. The leg disease patient rehabilitation apparatus according to claim 1, wherein The frame body is further provided with a walking wheel and a walking motor, and the walking motor is used for driving the walking wheel to walk.
10. The rehabilitation machine for leg disease patient according to claim 4, wherein The frame body is further provided with a handrail and a control switch for controlling the start and stop of the servo motor.