Improved movable wheelchair for affected limbs

Abstract

The utility model discloses an improved movable wheelchair for affected limbs, and belongs to the technical field of medical rehabilitation instruments. Comprising a wheelchair body, a cushion, a leg supporting assembly and an ankle pump training assembly, the cushion and the leg supporting assembly are both installed on the wheelchair body, and the ankle pump training assembly is installed at the lower end of the leg supporting assembly; the ankle pump training assembly comprises a horizontal fixing plate, a spring and a pedal plate, the horizontal fixing plate is installed on the leg supporting assembly, and the two ends of the spring are connected with the upper end face of the horizontal fixing plate and the lower end face of the pedal plate respectively; the spring is installed in the middle of the horizontal fixing plate and the middle of the pedal. The ankle pump movement rehabilitation training device provides small-amplitude ankle pump movement rehabilitation training for a patient, promotes blood circulation of the patient, and improves rehabilitation efficiency of the patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical rehabilitation equipment, in particular to an improved wheelchair for the movement of affected limbs. Background Art

[0002] A wheelchair is an assistive device used to replace walking, usually consisting of a seat cushion, backrest, armrests and wheels. Wheelchairs can help people with disabilities, spinal cord injury patients, neuromuscular disease patients, long-term disease rehabilitation patients and other people with limited mobility to move, improve their quality of life and independence, help them better integrate into society and participate in various activities, improve their quality of life, and promote physical and mental health. Therefore, wheelchairs are of great significance to people with limited mobility, and they are an indispensable assistive device.

[0003] Patients with spinal cord injury, multiple sclerosis and major surgery may need to use wheelchairs during rehabilitation, but in order to ensure muscle function and joint flexibility, improve circulatory system function and reduce bone density loss, they need to perform strength training and stretching training on specific muscle groups. Existing wheelchairs with rehabilitation training functions are shown in the invention patent with application number: 201210455911.4: A rehabilitation wheelchair; a rehabilitation mechanism for leg rehabilitation training is arranged on the wheelchair frame, and the rehabilitation mechanism is controlled by a manual operating box to achieve rehabilitation training of alternating leg lifting and leg retraction for single leg and double legs, thereby achieving the purpose of leg muscle training for patients.

[0004] The existing technology has the following defects: the rehabilitation wheelchair shown above can train certain muscle groups in the legs, but it is not suitable for large-scale leg movements for osteosarcoma patients who have just entered the postoperative recovery period, long-term bedridden patients, and patients with joint stiffness or arthritis. Large-scale leg movements may cause blood to accumulate in the lower limbs, increase the risk of thrombosis, and may even damage the bone structure, causing secondary trauma to the wound site, increasing the patient's pain and discomfort and causing a fear of exercise, which in turn affects the patient's recovery process. Therefore, there is room for improvement. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the utility model provides an improved wheelchair for the mobility of an affected limb, so as to solve the technical problem that the existing wheelchair for the mobility of an affected limb with rehabilitation training can only perform large-scale leg training and cannot meet the needs of patients who need ankle pump exercises.

[0006] An improved wheelchair for active limbs comprises a wheelchair body, a seat cushion, a leg support assembly and an ankle pump training assembly, wherein the seat cushion and the leg support assembly are both mounted on the wheelchair body, and the ankle pump training assembly is mounted on the lower end of the leg support assembly; the ankle pump training assembly comprises a horizontal fixing plate, a spring and a foot pedal, wherein the horizontal fixing plate is mounted on the leg support assembly, the two ends of the spring are respectively connected to the upper end surface of the horizontal fixing plate and the lower end surface of the foot pedal, and the spring is mounted at the middle position of the horizontal fixing plate and the foot pedal.

[0007] Preferably, a locking assembly is also installed on the ankle pump training assembly, and the locking assembly includes two groups of sliding plates and limiting grooves integrally formed on each group of sliding plates, the two groups of sliding plates are respectively hinged to the two ends of the horizontal fixed plate, and the two groups of limiting grooves are respectively used to clamp the two ends of the foot pedal.

[0008] Preferably, the leg support assembly includes a fixed block, a telescopic structure and a support plate; the fixed block is installed at the bottom of the seat cushion, the telescopic structure connects the fixed block and the horizontal fixed plate and is used to adjust the length of the leg support assembly, and the support plate is installed on the telescopic structure.

[0009] Preferably, the telescopic structure includes a rod sleeve and a connecting rod, the rod sleeve is installed on one side of the fixed block, the connecting rod is plugged into the rod sleeve and connected to the horizontal fixed plate, a clamping piece for limiting the positions of the rod sleeve and the connecting rod is provided between the rod sleeve and the connecting rod, the support plate includes an upper plate and a lower plate, the upper plate is installed on the rod sleeve, and the lower plate is installed at the middle position of the connecting rod.

[0010] Preferably, the rod sleeve is hinged to the fixing block, and a cylinder is tension-connected between the wheelchair body and the upper plate, and the cylinder is used to adjust the angle between the support plate and the seat cushion.

[0011] Preferably, two groups of switches are provided on the left and right armrests of the wheelchair body, the two groups of switches are electrically connected to the two groups of cylinders respectively, and the switches are used to control the opening and closing and the extension and retraction amount of the cylinders.

[0012] Preferably, an embedding groove is provided at the bottom of the seat cushion, the fixed block can be inserted and slid in the embedding groove, and a clamping piece for limiting the displacement of the two is provided between the embedding groove and the fixed block; a connecting block is hingedly connected to one end of the cylinder close to the upper plate, a connecting groove is provided on the upper plate, the connecting block is plugged into the connecting groove, and a clamping piece for limiting the displacement of the two is provided between the connecting block and the connecting groove.

[0013] Preferably, the support plate is made of carbon fiber.

[0014] Preferably, reinforcing ribs are provided between the end surfaces of the two groups of limiting grooves on the same group of the leg supporting components and the sliding plate.

[0015] Preferably, the angle adjustment range between the support plate and the seat cushion is 0-90 degrees.

[0016] The beneficial effects of the utility model are:

[0017] 1. Slowly warm up the legs and ankles that have not been used for a long time by swinging the feet with the aftershock of the springs to ensure that the affected limbs are fully adapted to the swing range. Warm-up activities can increase the temperature of the ankle muscles and ligaments, increase blood circulation, and thus improve the elasticity and flexibility of the muscles and ligaments; gradually increase the range of motion of the ankle to reduce the risk of sudden sprain or strain during exercise; warm-up activities can also make people better psychologically prepared for formal ankle exercises, improve the enthusiasm and effect of exercise; after fully warming up the ankle, the patient can perform ankle pump exercises according to his or her own situation, and the ankle activities can help promote blood return to the heart and fully reduce venous congestion and edema;

[0018] 2. The two ends of the foot pedal are clamped by two sets of limit slots to ensure that the position of the foot pedal remains unchanged. This can prevent the foot pedal from accidentally moving during training, ensure the stability and safety of the foot pedal, and ensure that the foot pedal is fixed, so that the user can be more comfortable and stable when sitting in the wheelchair;

[0019] 3. By setting the leg support assembly as a detachable structure, the detachable design makes the leg support assembly easier to clean and maintain, keeping the seat hygienic and tidy. The detachable leg support assembly can reduce the size of the seat, making it easier to carry and store, especially when moving or traveling. The detachable leg support assembly can be customized according to the individual needs of the patient to meet the needs of different patients and provide more personalized seat support.

[0020] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the background technology, the drawings required for use in the embodiments of the utility model or the background technology will be described below.

[0022] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to illustrate the technical solutions disclosed in the present utility model.

[0023] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the leg support assembly of the utility model;

[0025] Figure 3 This is a schematic diagram of the overall structure of the leg support assembly of the utility model from another perspective;

[0026] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0027] Figure 5 for Figure 3 The enlarged view of point B in the middle;

[0028] Figure 6 It is a schematic diagram of the overall structure of another state of the utility model.

[0029] Legend: 1. Wheelchair body; 2. Seat cushion; 3. Leg support assembly; 31. Fixed block; 32. Telescopic structure; 321. Rod sleeve; 322. Connecting rod; 33. Support plate; 331. Upper plate; 332. Lower plate; 4. Ankle pump training assembly; 41. Horizontal fixed plate; 42. Spring; 43. Foot pedal; 5. Locking assembly; 51. Sliding plate; 52. Limiting groove; 6. Cylinder; 7. Switch; 8. Embossed groove; 9. Connecting block; 10. Connecting groove; 11. Reinforcement rib. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower",

[0033] The directions or positional relationships indicated by "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0037] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0038] A wheelchair is an assistive device used to replace walking, usually consisting of a seat cushion, backrest, armrests and wheels. Wheelchairs can help people with disabilities, spinal cord injury patients, neuromuscular disease patients, long-term disease rehabilitation patients and other people with limited mobility to move, improve their quality of life and independence, help them better integrate into society and participate in various activities, improve their quality of life, and promote physical and mental health. Therefore, wheelchairs are of great significance to people with limited mobility, and they are an indispensable assistive device.

[0039] Patients with spinal cord injury, multiple sclerosis and major surgery may need to use wheelchairs during rehabilitation, but in order to ensure muscle function and joint flexibility, improve circulatory system function and reduce bone density loss, they need to perform strength training and stretching training on specific muscle groups. Existing wheelchairs with rehabilitation training functions are shown in the invention patent with application number: 201210455911.4: A rehabilitation wheelchair; a rehabilitation mechanism for leg rehabilitation training is arranged on the wheelchair frame, and the rehabilitation mechanism is controlled by a manual operating box to achieve rehabilitation training of alternating leg lifting and leg retraction for single leg and double legs, thereby achieving the purpose of leg muscle training for patients.

[0040] The rehabilitation wheelchair shown above can train certain muscle groups in the legs, but it is not suitable for osteosarcoma patients who have just entered the postoperative recovery period, long-term bedridden patients, and patients with joint stiffness or arthritis. Large-scale leg movements may cause blood to accumulate in the lower limbs, increasing the risk of thrombosis and may even damage the bone structure, causing secondary trauma to the wound site, increasing the patient's pain and discomfort and causing a fear of exercise, which in turn affects the patient's recovery process.

[0041] See also Figure 1-Figure 6 The improved wheelchair for affected limb mobility comprises a wheelchair body 1, a seat cushion 2, a leg support assembly 3 and an ankle pump training assembly 4. The seat cushion 2 and the leg support assembly 3 are both installed on the wheelchair body 1, and the ankle pump training assembly 4 is installed at the lower end of the leg support assembly 3; the ankle pump training assembly 4 comprises a horizontal fixing plate 41, a spring 42 and a foot pedal 43. The horizontal fixing plate 41 is installed on the leg support assembly 3, and the two ends of the spring 42 are respectively connected to the upper end surface of the horizontal fixing plate 41 and the lower end surface of the foot pedal 43, and the spring 42 is installed at the middle position of the horizontal fixing plate 41 and the foot pedal 43.

[0042] The use principle of the wheelchair in the utility model is as follows: the patient sits on the seat cushion 2, and both feet are placed on two groups of foot pedals 43 respectively. When it is necessary to carry out initial mild rehabilitation training for the legs, one end of the foot pedal 43 is pressed in the direction of the horizontal fixing plate 41, the spring 42 is compressed, and the foot pedal 43 swings with the increase and decrease of the elastic potential energy of the spring 42, and both feet move slightly with the swing of the foot pedal 43, which serves as a warm-up activity; after sufficient preheating, both feet apply force to the foot pedal 43 to perform toe-to-heel and heel-to-heel movements, so as to promote blood circulation and muscle activity through ankle movement.

[0043] By swinging both feet along with the aftershock of the spring 42, the legs and ankles that have not been used for a long time are slowly warmed up to ensure that the affected limbs fully adapt to the swing range. The warm-up activities can increase the temperature of the ankle muscles and ligaments, increase blood circulation, and thus improve the elasticity and flexibility of the muscles and ligaments; gradually increase the range of motion of the ankle to reduce the risk of sudden sprain or strain during exercise; at the same time, warm-up activities can better prepare people psychologically for formal ankle exercises, improve the enthusiasm and effect of exercise; after the ankle is fully warmed up, the patient performs ankle pump exercises according to his or her own situation, and the ankle activities help promote blood return to the heart, thereby fully reducing venous congestion and edema.

[0044] When the patient does not need to perform ankle pump training, the foot pedal 43 is still in a fluctuating state, and the patient's foot needs to exert force to control the stability of the foot pedal 43, which increases the patient's training intensity and imposes a certain burden on the patient. Based on this, in one embodiment, a locking assembly 5 is also installed on the ankle pump training assembly 4, and the locking assembly 5 includes two groups of sliding plates 51 and limiting grooves 52 integrally formed on each group of sliding plates 51. The two groups of sliding plates 51 are respectively hinged to the two ends of the horizontal fixed plate 41, and the two groups of limiting grooves 52 are respectively used to clamp the two ends of the foot pedal 43. The two groups of limiting grooves 52 can clamp the two ends of the foot pedal 43 to ensure that the position of the foot pedal 43 is fixed. In this way, the position of the foot pedal 43 can be prevented from accidentally moving when the training process is not required, the stability and safety of the foot pedal 43 are ensured, and the position of the foot pedal 43 is fixed, so that the user can be more comfortable and stable when sitting in the wheelchair.

[0045] If the length of the leg support assembly 3 cannot be adjusted, it may not be able to meet the needs of users of different heights and leg lengths, resulting in some users being unable to obtain appropriate support, reducing the comfort and humanization of the seat; the inability to adjust the length of the leg support assembly 3 may result in the user being unable to obtain appropriate support when sitting, increasing discomfort and fatigue, and affecting the user's experience and health. Based on this, in one embodiment, the leg support assembly 3 includes a fixed block 31, a telescopic structure 32, and a support plate 33; the fixed block 31 is installed at the bottom of the seat cushion 2, the telescopic structure 32 connects the fixed block 31 and the horizontal fixed plate 41 and is used to adjust the length of the leg support assembly 3, and the support plate 33 is installed on the telescopic structure 32. Through the setting of the telescopic structure 32, the leg support component 3 can be adjusted according to the height and leg length of different people, so as to ensure that each user can obtain appropriate support and improve the comfort and humanization of the seat; the telescopic structure 32 of the leg support component can be adjusted according to the needs of the user, providing personalized support, so that the user can get the most appropriate support when sitting, reducing fatigue and discomfort; the telescopic structure 32 of the leg support component 3 makes the seat more flexible, can adapt to different usage scenarios and needs, and provide users with a more convenient and comfortable use experience.

[0046] The one-piece support plate 33 will directly wrap the affected limb, resulting in poor ventilation and air permeability between the surface of the affected limb and the support plate 33. Long-term use will easily cause moisture and heat sensation in the affected limb, increasing the risk of skin damage; and the one-piece support plate 33 will make the contact area between the affected limb and the support plate 33 larger, and long-term pressure will easily cause poor local blood circulation in the affected limb, increasing the risk of patients developing pressure sores. Based on this, in one embodiment, the telescopic structure 32 includes a rod sleeve 321 and a connecting rod 322, the rod sleeve 321 is installed on one side of the fixed block 31, the connecting rod 322 is plugged into the rod sleeve 321 and connected to the horizontal fixed plate 41, and a clamping piece for limiting the positions of the two is provided between the rod sleeve 321 and the connecting rod 322, and the support plate 33 includes an upper plate 331 and a lower plate 332, the upper plate 331 is installed on the rod sleeve 321, and the lower plate 332 is installed in the middle of the connecting rod 322. The segmented setting of the support plate 33 can increase the ventilation and heat dissipation effect of the patient's affected limb. The gaps between the segments can promote air circulation, reduce the affected limb from being wrapped in a closed environment for a long time, help reduce the patient's feeling of dampness and heat in the affected limb, and improve air permeability and comfort; the segmented setting can reduce the contact area of ​​the support plate 33 on the surface of the affected limb, reduce the risk of long-term continuous compression of the affected limb, help reduce the occurrence of pressure sores, and improve the health of the patient's affected limb; the segmented setting of the support plate 33 can reduce the direct contact area between the affected limb and the support plate 33, reduce the pressure on the affected limb, improve the patient's sitting comfort, and help reduce the patient's discomfort and pain.

[0047] A fixed angle may not provide the best support and comfort, and may cause discomfort to the patient when sitting in the wheelchair for a long time, and even affect physical health; a fixed angle may limit the patient's range of motion and functionality in the wheelchair, and cannot meet the needs of different activities and usage scenarios; a fixed angle may not meet the needs of rehabilitation treatment, and cannot provide seat training at different angles, affecting the rehabilitation effect. Based on this, in one embodiment, the rod sleeve 321 is hinged to the fixed block 31, and a cylinder 6 is connected between the wheelchair body 1 and the upper plate 331, and the cylinder 6 is used to adjust the angle between the support plate 33 and the seat cushion 2. By controlling the opening and closing and the extension and retraction of the cylinder 6, the patient can adjust the inclination angle of the support plate 33 according to his or her comfort and support needs to adapt to different sitting postures and activity needs; the inclination angle adjustment of the support plate 33 can help the patient find the best support angle, reduce body pressure, improve sitting comfort, and reduce pressure sores and discomfort; the inclination angle adjustment of the support plate 33 can help the patient perform seat training at different angles according to the needs of rehabilitation treatment, promote muscle activity and joint activity, and facilitate rehabilitation treatment; the inclination angle adjustment of the support plate 33 can enable the patient to obtain better support and comfort in different activities and usage scenarios, and improve the patient's daily life function.

[0048] The wheelchair body 1 is also provided with a counting device, which is in communication connection with the cylinder 6 and is used to record the number of times the cylinder 6 is extended and retracted within a period of time; the counting device can be used to understand the frequency and intensity of the wheelchair being used within a period of time, and these data can help medical staff or caregivers understand the amount of activity and activity habits of wheelchair users, so as to better formulate personalized rehabilitation plans or care plans. In addition, these data can also be used for the maintenance and care of the wheelchair, helping to timely discover and solve potential problems and extend the service life of the wheelchair.

[0049] Because the patient's local muscle function is impaired, it is difficult to perform more complex operations on the wheelchair, and it is necessary to rely on external help or intervention, which will make it difficult for the patient to control the wheelchair in a timely and convenient manner, and the patient's autonomy and independence are relatively poor. Based on this, in one embodiment, two sets of switches 7 are provided on the left and right armrests of the wheelchair body 1, and the two sets of switches 7 are electrically connected to the two sets of cylinders 6 respectively, and the switches 7 are used to control the opening and closing and the extension amount of the cylinders 6. The switch 7 controls the extension amount of the cylinder 6 relatively simple and intuitive, and the patient can adjust the inclination angle of the support plate 33 by simply pressing the switch 7, without complex operation steps or professional skills, which improves the convenience of operation; the switch 7 controls the extension amount of the cylinder 6 to achieve instant angle adjustment, and the patient can adjust the inclination angle of the support plate 33 instantly according to his own feelings and needs, without waiting or relying on the help of others, which improves the timeliness of the operation; the patient can autonomously control the inclination angle of the support plate 33 through the switch 7, without too much external help or intervention, which enhances the patient's autonomy and independence, and is conducive to improving the patient's self-management ability.

[0050] Common non-detachable leg support structures may be difficult to clean and maintain, which may affect the hygiene and service life of the seat; fixed leg support structures may increase the size and weight of the wheelchair, making it inconvenient to carry and store, and may cause inconvenience especially when moving or traveling; fixed leg support structures may not be able to meet the changing seating needs during rehabilitation, affecting the rehabilitation effect. Based on this, in one embodiment, a groove 8 is provided at the bottom of the seat cushion 2, and a fixed block 31 can be inserted and slid in the groove 8, and a clamping member for limiting the displacement of the two is provided between the groove 8 and the fixed block 31; a connecting block 9 is hinged at one end of the cylinder 6 close to the upper plate 331, and a connecting groove 10 is provided on the upper plate 331, and the connecting block 9 is plugged into the connecting groove 10, and a clamping member for limiting the displacement of the two is provided between the connecting block 9 and the connecting groove 10. According to the patient's usage requirements, the fixing block 31 and the embedding groove 8, and the connecting block 9 and the connecting groove 10 are disassembled and matched to realize the detachable function of the leg support assembly 3; through the detachable leg support assembly 3, it can be adjusted according to the patient's individual needs and rehabilitation status to provide more suitable support and comfort; the detachable design makes the leg support assembly 3 easier to clean and maintain, keeping the seat hygienic and tidy, and the detachable leg support assembly 3 can reduce the size of the seat, making it easier to carry and store, especially when moving or traveling; the detachable leg support assembly 3 can be customized according to the patient's individual needs to meet the needs of different patients and provide more personalized seat support.

[0051] The material of the support plate 33 of the wheelchair for the affected limb usually needs to meet the following requirements: the support plate 33 needs to have sufficient strength and stability to support the patient's body weight and remain stable; the material of the support plate 33 should be light to reduce the weight of the entire wheelchair and facilitate the patient to carry and move; the material of the support plate 33 should have a certain elasticity and comfort to provide the patient with a comfortable sitting posture and support; the material of the support plate 33 should have good durability and be able to withstand long-term use without being easily damaged. Based on this, in one embodiment, the support plate 33 is made of carbon fiber. The support plate 33 made of carbon fiber can provide better support and stability for the patient's wheelchair. At the same time, the carbon fiber material has the characteristics of light weight, high strength and durability, which can effectively support the patient's affected limb and improve the patient's comfort and safety. In addition, the carbon fiber material also has good corrosion resistance, which can extend the service life of the support plate 33. Therefore, the support plate 33 made of carbon fiber can improve the overall performance and user experience of the patient's wheelchair.

[0052] When the limiting groove 52 is connected to the foot pedal 43, the sliding plate 51 is used to limit the movement of the patient's feet. If the patient sits in the wheelchair for a long time, the toes will be in contact with the sliding plate 51 for a long time, which may easily cause discomfort to the patient's toes, and is not conducive to improving the patient's comfort experience. Based on this, in one embodiment, the two groups of limiting grooves 52 located on the same group of leg support components 3 are respectively provided with reinforcing ribs 11 between the end surfaces that are away from each other and the sliding plate 51. The function of the reinforcing ribs 11 is to increase the strength and stability of the structure between the limiting grooves 52 and the sliding plate 51. The reinforcing ribs 11 can effectively increase the connection strength between the leg support component 3 and the sliding plate 51 to prevent loosening or deformation during use. This design can improve the durability and safety of the entire leg support system, ensuring that the patient can get good support and stability when using the wheelchair; at the same time, when the limit groove 52 is clamped on the foot pedal 43, the reinforcing rib 11 cushions the human footsteps, preventing the affected limb from flying out of the foot pedal 43 or colliding with the sliding plate 51 during the movement of the wheelchair, causing secondary injury to the affected limb.

[0053] Different patients may have different seating requirements, and a fixed angle may not meet the needs of everyone, resulting in an uncomfortable sitting posture; in different activity states, the sitting posture requirements of the body may be different, and a fixed angle cannot meet such changes, resulting in the patient's comfort and support during activities being limited; for patients who need rehabilitation training, a fixed angle cannot meet the changing seating requirements during the rehabilitation process, affecting the rehabilitation effect. Based on this, in one embodiment, the angle adjustment range between the support plate 33 and the cushion 2 is 0-90 degrees. The angle adjustment range between the support plate 33 and the cushion 2 is 0-90 degrees, which can provide patients with more choices to adapt to different sitting posture requirements; patients can adjust the angle between the support plate 33 and the cushion 2 according to their needs and comfort to obtain the most suitable sitting posture for themselves; the angle adjustment range can help patients adjust their sitting posture in different activities and resting states to reduce stress and fatigue; by adjusting the angle between the support plate 33 and the cushion 2, the force distribution of body parts can be changed, stress can be reduced, and the discomfort caused by sitting for a long time can be reduced; the angle adjustment range can provide more choices, so that patients can find the most comfortable sitting posture and reduce discomfort.

[0054] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An improved wheelchair for the mobility of an affected limb, characterized in that: The invention comprises a wheelchair body (1), a seat cushion (2), a leg support assembly (3) and an ankle pump training assembly (4); the seat cushion (2) and the leg support assembly (3) are both mounted on the wheelchair body (1); the ankle pump training assembly (4) is mounted on the lower end of the leg support assembly (3); the ankle pump training assembly (4) comprises a horizontal fixing plate (41), a spring (42) and a foot pedal (43); the horizontal fixing plate (41) is mounted on the leg support assembly (3); the two ends of the spring (42) are respectively connected to the upper end surface of the horizontal fixing plate (41) and the lower end surface of the foot pedal (43); the spring (42) is mounted at the middle position of the horizontal fixing plate (41) and the foot pedal (43).

2. The improved wheelchair for disabled limbs according to claim 1, characterized in that: The ankle pump training component (4) is also equipped with a locking component (5), which includes two groups of sliding plates (51) and limiting grooves (52) integrally formed on each group of sliding plates (51), the two groups of sliding plates (51) are respectively hinged to the two ends of the horizontal fixed plate (41), and the two groups of limiting grooves (52) are respectively used to clamp the two ends of the foot pedal (43).

3. The improved wheelchair for disabled limbs according to claim 2, characterized in that: The leg support assembly (3) comprises a fixed block (31), a telescopic structure (32) and a support plate (33); the fixed block (31) is installed at the bottom of the seat cushion (2); the telescopic structure (32) is connected to the fixed block (31) and the horizontal fixed plate (41) and is used to adjust the length of the leg support assembly (3); and the support plate (33) is installed on the telescopic structure (32).

4. The improved wheelchair for disabled limbs according to claim 3, characterized in that: The telescopic structure (32) comprises a rod sleeve (321) and a connecting rod (322); the rod sleeve (321) is mounted on one side of the fixed block (31); the connecting rod (322) is plugged into and matched with the rod sleeve (321) and connected to the horizontal fixed plate (41); a clamping member for limiting the positions of the rod sleeve (321) and the connecting rod (322) is provided between the rod sleeve (321) and the connecting rod (322); the support plate (33) comprises an upper plate (331) and a lower plate (332); the upper plate (331) is mounted on the rod sleeve (321); and the lower plate (332) is mounted at the middle position of the connecting rod (322).

5. The improved wheelchair for disabled limbs according to claim 4, characterized in that: Two sets of switches (7) are provided on the left and right armrests of the wheelchair body (1), and the two sets of switches (7) are electrically connected to the two sets of cylinders (6) respectively. The switches (7) are used to control the opening and closing and the extension and retraction amount of the cylinders (6).

6. The improved wheelchair for disabled limbs according to claim 5, characterized in that: The seat cushion (2) is provided with an embedding groove (8) at the bottom, the fixing block (31) can be inserted and slid in the embedding groove (8), and a clamping piece for limiting the displacement of the two is provided between the embedding groove (8) and the fixing block (31); a connecting block (9) is hingedly connected to one end of the cylinder (6) close to the upper plate (331), and a connecting groove (10) is provided on the upper plate (331), the connecting block (9) is plugged and matched with the connecting groove (10), and a clamping piece for limiting the displacement of the two is provided between the connecting block (9) and the connecting groove (10).

7. The improved wheelchair for disabled limbs according to claim 3, characterized in that: The support plate (33) is made of carbon fiber material.

8. The improved wheelchair for disabled limbs according to claim 2, characterized in that: Reinforcing ribs (11) are provided between the end surfaces of the two groups of limiting grooves (52) located on the same group of leg support components (3) that are away from each other and the sliding plate (51).

9. The improved wheelchair for disabled limbs according to claim 3, characterized in that: The angle between the support plate (33) and the seat cushion (2) can be adjusted within a range of 0-90 degrees.

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