Spinal cord injury lower limb rehabilitation training device

Abstract

The present application relates to a kind of spinal cord injury lower limb rehabilitation training equipment, it is related to lower limb rehabilitation training technical field.The seat is provided with pusher assembly, one end of the pusher assembly is fixed with backboard, the contact plate is movably connected with restraint belt, the contact plate side is provided with fixed component, the connecting seat side is provided with angle adjusting assembly, the angle adjusting assembly side is fixed with knee support, the present application is slidably matched by moving seat, limiting rod, lifting seat and oblique sliding slot, the horizontal sliding of electric push rod is converted into the compound motion of backboard outward extension and up and down sliding, the synchronous adaptation of seat lifting and back support posture is realized, the support failure caused by single lifting structure is avoided, the problem of sitting and standing conversion lifting interruption, laborious operation is solved, reduce patient upper limb load, backboard compound motion can dynamically fit patient back, solve the problem of lifting interruption, conversion failure caused by only relying on seat turnover.

Description

Technical Field

[0001] This invention relates to the field of lower limb rehabilitation training technology, specifically to a lower limb rehabilitation training device for spinal cord injury. Background Technology

[0002] Spinal cord injury, stroke, hemiplegia, multiple sclerosis and other diseases often lead to lower limb motor dysfunction, making it impossible for patients to independently complete the sitting-to-standing transition and standing training. Prolonged bed rest or sitting can easily cause complications such as pressure sores, muscle atrophy, joint contractures, and osteoporosis, seriously affecting patients' quality of life and rehabilitation process. Therefore, self-help standing rehabilitation equipment has become a core need in clinical rehabilitation and home care. The pneumatic-assisted standing frame is a rehabilitation aid that uses a pneumatic cylinder as the core power source and combines it with a mechanical linkage mechanism to enable patients to complete the sitting-to-standing transition and standing training independently. The patient pulls the assist rope with their upper limbs, triggering the pneumatic cylinder control valve. High-pressure gas pushes the piston to extend, and the linear thrust is converted into a seat tilting torque through the linkage transmission mechanism, causing the patient's trunk to tilt forward and lower limbs to extend, completing the sitting-to-standing transition.

[0003] However, existing standing frames lack sufficient power adaptability for seat-to-stand transitions, easily leading to interrupted lifting and strenuous operation. During the seat-to-stand transition, the core resistance comes from the patient's lower limb weight and joint torque. The core characteristic of spinal cord injury patients is severe lower limb muscle weakness, making it impossible to actively complete movements such as thigh extension and knee support. Relying solely on the seat's own tilting mechanism is insufficient to provide effective auxiliary power, easily causing problems such as hip slippage and insufficient trunk forward tilt angle, leading to interruption of the seat-to-stand transition and inability to complete the standing action. Spinal cord injury patients often have symptoms of weak upper limb strength. The activation method of existing standing frames mostly relies on the patient's upper limb pressing or pulling, requiring the upper limb to bear a large force load, making the operation extremely strenuous. Furthermore, the knee support contact angle is fixed, failing to adapt to the personalized needs of patients with different body types. Spinal cord injury patients of different body types have significant differences in lower limb morphology, knee force distribution, and center of gravity position. The fixed-angle knee support cannot match the physiological movement trajectory of the knee joint during seat-to-stand transitions, easily leading patients to form abnormal movement patterns, which is not conducive to the remodeling of neural function and the recovery of normal movement habits.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing lower limb rehabilitation training equipment for spinal cord injuries. Summary of the Invention

[0005] The present invention addresses the problem that existing technical solutions are too simplistic by providing a solution that is significantly different from existing technologies. Specifically, the purpose of the present invention is to provide a lower limb rehabilitation training device for spinal cord injury to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a lower limb rehabilitation training device for spinal cord injury, comprising a standing frame, a seat rotatably connected to the standing frame via a pneumatic cylinder, a pushing component disposed within the seat, a backboard fixed to one end of the pushing component, and the pushing component drives the backboard to assist in pushing the patient's back; a physiotherapy head disposed on one side of the backboard; a fixing seat symmetrically fixed to the end of the base plate of the standing frame; a massage head symmetrically disposed on one side of the fixing seat, the massage head being in contact with the patient's calf muscles; a contact plate symmetrically disposed on one side of the fixing seat; a return spring disposed on one side of the contact plate; a restraint strap movably connected to the contact plate; a fixing component disposed on one side of the contact plate, and the distance between the two contact plates being adjusted via the fixing component; a connecting seat fixed within the fixing seat; an angle adjustment component disposed on one side of the connecting seat; a knee support fixed to one side of the angle adjustment component, and the tilt of the knee support being adjusted via the angle adjustment component.

[0007] Preferably, the pushing component includes a movable seat disposed within the seat, an electric push rod fixed to one side of the movable seat, a lifting seat slidably connected inside the movable seat, guide rods fixed to both sides of the lifting seat, a fixed plate slidably connected to the guide rods, and the top of the lifting seat fixedly connected to the back panel.

[0008] Preferably, a limiting rod is fixed inside the movable seat, the limiting rod passes through the lifting seat, and the limiting rod is slidably connected to the lifting seat.

[0009] Preferably, the seat has a cavity that moves to accommodate the movable seat and the lifting seat. The inner wall of the cavity is fixedly connected to a fixed plate. The fixed plate has a sliding groove that moves to accommodate the guide rod, and the sliding groove is oblique in shape.

[0010] Preferably, the fixing assembly includes an elastic movable frame fixed to one side of the contact plate, wherein a connecting frame is fixed to the outer wall of one of the elastic movable frames, a movable plate is fixed to one side of the connecting frame, a push plate is slidably connected to one side of the movable plate, a fixed rod is slidably connected to the bottom end of the push plate, and a lifting frame is fixed to the top end of the push plate.

[0011] Preferably, the elastic movable frame is fixedly connected to the connecting seat, the fixed seat has a cavity that allows the connecting frame, the push plate and the lifting frame to move, and the movable plate has a cavity that allows the push plate to slide.

[0012] Preferably, the push plate has a trapezoidal cross-section, the contact surfaces of the fixing rod and the push plate are both inclined surfaces, and the fixing rod is fixedly connected to the inner wall of the cavity opened in the fixing seat.

[0013] Preferably, the angle adjustment assembly includes a connecting ring fixed to the bottom of the lifting frame, a guide frame slidably connected to the connecting ring, a connecting shaft fixed to one side of the guide frame, a rotating frame fixed to one end of the connecting shaft, and a knee support fixedly connected to one side of the rotating frame.

[0014] Preferably, the connecting shaft is rotatably connected to the connecting seat, and the fixed seat has a cavity that accommodates the connecting ring, the connecting shaft, and the rotating frame.

[0015] Preferably, the guide frame has an "L" shaped cross section, and the connecting ring has a cavity that cooperates with the movement of a roller at one end of the guide frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention utilizes the sliding cooperation of a movable seat, a limiting rod, a lifting seat, and an oblique sliding groove to transform the horizontal sliding of the electric push rod into a composite movement of the backrest extending outward and sliding up and down. The structure features smooth transmission and precise guidance, achieving synchronous adaptation between seat lifting and back support posture. This avoids support failure caused by a single lifting structure, solves the problems of interrupted lifting and strenuous operation during seat-to-stand transitions, reduces the load on the patient's upper limbs, and allows the composite movement of the backrest to dynamically conform to the patient's back. The composite movement of the backrest can adapt to the back contour and center of gravity changes of patients of different heights and weights, constraining trunk posture and preventing the buttocks from sliding backward and the trunk from leaning forward insufficiently during seat-to-stand transitions. This ensures continuous and smooth lifting movements, solves the problems of lifting interruption and transition failure caused by relying solely on seat flipping, and improves the feasibility and compliance of patient self-rehabilitation.

[0018] 2. This invention utilizes a lower limb contact adaptive transmission structure, with a contact plate and a return spring as its core, in conjunction with the linkage of an elastic moving frame, a connecting frame, and a moving plate. This structure converts the contact force of the patient's lower limb into a mechanical displacement signal. Then, through the inclined surface cooperation between the push plate and the fixed rod, the conversion between horizontal displacement and vertical lifting and lowering is achieved. The transmission link is complete and closed-loop, requiring no complex electrical control intervention. Furthermore, the elastic moving frame can buffer the contact force, avoiding pressure on the patient's leg caused by hard structural contact.

[0019] 3. This invention, through the orderly transmission of the lifting frame, connecting ring, guide frame, connecting shaft, and rotating frame, transforms the vertical lifting of the push plate into the angular swing of the knee support. The angle adjustment is stable and the response is precise. It is also linked with the lower limb contact structure. The adaptive angle adjustment of the knee support can match the physiological posture of the knee joint of patients with different leg circumferences and lower limb shapes. It can meet the usage needs of spinal cord injury patients of various body types without manual adjustment. It breaks through the structural limitations of existing fixed-angle knee supports. The dynamic fit support of the back plate and the adaptive angle limit of the knee support form a dual-point stable support system for the back and knees. It can always constrain the patient's center of gravity within the range of the equipment support base, effectively avoiding backward tilting and falling caused by the center of gravity shifting backward and the buttocks slipping when starting from sitting or standing. It eliminates the risk of secondary injury to the patient. The buffering effect of the elastic moving frame and the flexible fixation of the restraint strap can avoid lower limb compression injury, further improving the safety of use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the driving component of the present invention;

[0022] Figure 3 This is a schematic side sectional view of the three-dimensional structure of the driving component of the present invention;

[0023] Figure 4 This is a schematic unfolded view of the three-dimensional structure of the driving component of the present invention;

[0024] Figure 5 This is a structural schematic diagram showing the connection between the standing frame and the fixed base of the present invention;

[0025] Figure 6 This is a structural schematic diagram showing the connection between the fixing seat and the knee support of the present invention;

[0026] Figure 7 This is a three-dimensional structural schematic diagram of the angle adjustment component of the present invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the fixing component of the present invention;

[0028] Figure 9 This is a three-dimensional structural diagram of the fixing component from another perspective of the present invention;

[0029] Figure 10 This is a three-dimensional schematic diagram of the angle adjustment component of the present invention.

[0030] In the diagram: 1. Standing frame; 2. Seat; 301. Movable seat; 302. Lifting seat; 303. Limiting rod; 304. Guide rod; 305. Fixing plate; 4. Back panel; 5. Fixing seat; 6. Contact plate; 7. Restraint strap; 801. Elastic moving frame; 802. Connecting frame; 803. Moving plate; 804. Push plate; 805. Fixing rod; 806. Lifting frame; 9. Connecting seat; 101. Connecting ring; 102. Guide frame; 103. Connecting shaft; 104. Rotating frame; 11. Knee support; 12. Massage head; 13. Therapy head. Detailed Implementation

[0031] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0032] Please see Figures 1 to 10 This invention provides a technical solution: a lower limb rehabilitation training device for spinal cord injury, including a standing frame 1. The standing frame 1 is rotatably connected to a seat 2 via a pneumatic cylinder. A pushing component is provided inside the seat 2. A back plate 4 is fixed to one end of the pushing component, and the pushing component drives the back plate 4 to assist in pushing the patient's back. A physiotherapy head 13 is provided on one side of the back plate 4. A fixing seat 5 is symmetrically fixed to the end of the bottom plate of the standing frame 1. A massage head 12 is symmetrically provided on one side of the fixing seat 5, and the massage head 12 fits against the patient's calf muscles. A contact plate 6 is symmetrically provided on one side of the fixing seat 5. A return spring is provided on one side of the contact plate 6. A restraint strap 7 is movably connected to the contact plate 6. A fixing component is provided on one side of the contact plate 6, and the distance between the two contact plates 6 is adjusted by the fixing component. A connecting seat 9 is fixed inside the fixing seat 5. An angle adjustment component is provided on one side of the connecting seat 9. A knee support 11 is fixed on one side of the angle adjustment component, and the tilt of the knee support 11 is adjusted by the angle adjustment component.

[0033] In practice, the patient sits on the seat 2 connected to the standing frame 1 by a pneumatic cylinder. The pushing component inside the seat 2 drives the back plate 4 fixed at one end to assist in pushing the patient's back. The patient's lower limbs are placed between the abutment plates 6 symmetrically arranged on one side of the fixed seat 5 at the end of the base plate of the standing frame 1. The distance between the two abutment plates 6 is adjusted by the return spring on one side of the abutment plate 6, the movable binding strap 7, and the fixing component to fix the lower limbs. The angle adjustment component on one side of the connecting seat 9 fixed inside the fixed seat 5 can adjust the tilt of the knee support 11 fixed on one side, thus completing the patient's sitting-to-standing transition and rehabilitation training.

[0034] As a further embodiment of the present invention, the pushing component includes a movable seat 301 disposed in the seat 2, an electric push rod fixed on one side of the movable seat 301, a lifting seat 302 slidably connected inside the movable seat 301, guide rods 304 fixed on both sides of the lifting seat 302, a fixed plate 305 slidably connected to the guide rods 304, and the top of the lifting seat 302 fixedly connected to the back plate 4.

[0035] In practice, the electric push rod drives the movable seat 301 inside the seat 2 to move, and the lifting seat 302 slidably connected inside the movable seat 301 moves synchronously with it. The guide rods 304 fixed on both sides of the lifting seat 302 slide along the fixed plate 305, thereby driving the back plate 4 fixedly connected to the top of the lifting seat 302 to move and lift, thus completing the auxiliary push for the patient's back.

[0036] As a further embodiment of the present invention, a limiting rod 303 is fixed inside the movable seat 301, the limiting rod 303 passes through the lifting seat 302, and the limiting rod 303 is slidably connected to the lifting seat 302.

[0037] In practice, the limiting rod 303 fixed inside the movable seat 301 passes through the lifting seat 302 and slides with it to guide and limit the lifting seat 302, so that the lifting seat 302 can move up and down stably along the limiting rod 303.

[0038] As a further embodiment of the present invention, the seat 2 has a cavity that moves with the movable seat 301 and the lifting seat 302. The inner wall of the cavity is fixedly connected to the fixed plate 305. The fixed plate 305 has a sliding groove that moves with the guide rod 304, and the sliding groove is oblique.

[0039] In specific implementation, the seat 2 has a cavity for the movable seat 301 and the lifting seat 302 to move. The inner wall of the cavity is fixedly connected to the fixed plate 305. The fixed plate 305 has an oblique groove that cooperates with the guide rod 304 to provide oblique movement guidance for the guide rod 304.

[0040] As a further embodiment of the present invention, the fixing component includes an elastic movable frame 801 fixed to one side of the contact plate 6, wherein a connecting frame 802 is fixed to the outer wall of one of the elastic movable frames 801, a movable plate 803 is fixed to one side of the connecting frame 802, a push plate 804 is slidably connected to one side of the movable plate 803, a fixing rod 805 is slidably connected to the bottom end of the push plate 804, and a lifting frame 806 is fixed to the top end of the push plate 804.

[0041] In specific implementation, the elastic movable frame 801 fixed on one side of the contact plate 6 moves with the contact plate 6. One of the elastic movable frames 801 drives the movable plate 803 to move through the connecting frame 802. The movable plate 803 drives the push plate 804, which is limited and slidably connected on one side, to move. The push plate 804 slides along the fixed rod 805 and drives the lifting frame 806 fixed at its top to achieve lifting movement.

[0042] As a further embodiment of the present invention, the elastic movable frame 801 is fixedly connected to the connecting seat 9, the fixed seat 5 has a cavity that allows the connecting frame 802, the push plate 804 and the lifting frame 806 to move, and the movable plate 803 has a cavity that allows the push plate 804 to slide.

[0043] In practice, the flexible movable frame 801 is fixedly connected to the connecting seat 9. The fixed seat 5 has a cavity for the connecting frame 802, the push plate 804 and the lifting frame 806 to move. The movable plate 803 has a cavity for the push plate 804 to slide, thereby providing guidance and clearance space for the movement of each component.

[0044] As a further embodiment of the present invention, the push plate 804 has a trapezoidal cross section, the contact surfaces of the fixing rod 805 and the push plate 804 are both inclined surfaces, and the fixing rod 805 is fixedly connected to the inner wall of the cavity opened in the fixing seat 5.

[0045] In specific implementation, the push plate 804 has a trapezoidal cross section, and the mating surfaces of the fixed rod 805 and the push plate 804 are all inclined surfaces. The fixed rod 805 is fixedly connected to the inner wall of the cavity of the fixed seat 5. When the push plate 804 moves horizontally, it can achieve vertical lifting and lowering movement under the action of the inclined surfaces.

[0046] As a further embodiment of the present invention, the angle adjustment component includes a connecting ring 101 fixed to the bottom end of the lifting frame 806, a guide frame 102 slidably connected to the connecting ring 101, a connecting shaft 103 fixed to one side of the guide frame 102, a rotating frame 104 fixed to one end of the connecting shaft 103, and a knee support 11 fixedly connected to one side of the rotating frame 104.

[0047] In practice, the connecting ring 101 fixed at the bottom of the lifting frame 806 rises and falls with the lifting frame 806. The connecting ring 101 drives the slidingly connected guide frame 102 to swing. The guide frame 102 drives the rotating frame 104 to rotate through the connecting shaft 103, thereby enabling the knee support 11 fixed to the rotating frame 104 to achieve angle adjustment.

[0048] As a further embodiment of the present invention, the connecting shaft 103 is rotatably connected to the connecting seat 9, and the fixed seat 5 has a cavity that accommodates the connecting ring 101, the connecting shaft 103 and the rotating frame 104.

[0049] In practice, the connecting seat 9 is rotatably connected to the connecting shaft 103, and the fixed seat 5 has a cavity for the connecting ring 101, the connecting shaft 103 and the rotating frame 104 to move, providing installation support and movement avoidance space for the rotation and lifting movement of the angle adjustment component.

[0050] As a further embodiment of the present invention, the guide frame 102 has an "L" shaped cross section, and the connecting ring 101 has a cavity that cooperates with the movement of a roller at one end of the guide frame 102.

[0051] In practice, the guide frame 102 has an L-shaped cross section, and the connecting ring 101 has a cavity for the roller at one end of the guide frame 102 to move, so that when the connecting ring 101 is raised or lowered, it can drive the guide frame 102 to rotate through the roller, thereby driving the angle adjustment component to move.

[0052] Working principle: When using this spinal cord injury lower limb rehabilitation training device, the patient slowly sits on the seat 2 (the physiotherapy head 13 at the top of the back panel 4 protrudes from the rear edge of the seat 2, corresponding to the position where the patient's buttocks rest, and can perform pre-relaxation massage on the buttock muscles), with the knees against the knee rest 11, and both feet steadily placed on the foot pedals of the standing frame 1, so that the lower legs are in close contact with the massage head 12 located at the corresponding position on the standing frame 1 (the massage head 12 is tilted, and the rotating massage head 12 massages and relaxes the muscles on both sides of the lower legs). The patient's upper limbs hold the operating handle at the front end of the standing frame 1, causing the seat 2 connected by the pneumatic cylinder to gradually rise. With the back panel 4 pushing and the knee rest 11 assisting the patient to stand, the body's center of gravity is adjusted to the range of the device's support base. At this time, the patient's back is in close contact with the back panel 4, and the physiotherapy head 13 installed on one side of the back panel 4 senses the pressure signal and automatically starts. The physiotherapy head 13 has a built-in micro The drive component and physiotherapy module continuously generate low-frequency pulses or a warming effect after being triggered by pressure. This effect acts on the patient's back muscles and meridians, relaxing tense muscles and clearing local blood vessels through physical stimulation, thus improving blood circulation in the back. At the same time, the massage heads 12, which are attached to both sides of the patient's calf muscles, operate synchronously. During operation, the drive motor drives the contacts of the massage heads 12 to perform reciprocating rolling and kneading movements, continuously massaging and relaxing the calf muscles in all directions, effectively relieving lower limb muscle stiffness and spasms. Throughout the subsequent sitting-to-standing transition and standing training process, the physiotherapy head 13 continuously acts on the patient's back muscles and meridians, soothing muscles and clearing blood vessels. The massage heads 12 continuously perform reciprocating massage and relaxation on the calf muscles, relieving lower limb muscle stiffness and spasms. This allows the patient to receive back physiotherapy and calf muscle massage care while completing lower limb rehabilitation training.

[0053] After positioning, the patient presses the operating handle smoothly and at a constant speed with their upper limb, triggering the pneumatic cylinder control valve. The pneumatic cylinder piston rod extends and drives the seat 2 to slowly rotate upward around the hinge axis via the transmission linkage, achieving assisted lifting for sitting-to-standing transition. Simultaneously, the control sensor activates the electric push rod, which drives the movable seat 301 to slide within the cavity of the seat 2. The electric push rod can adaptively adjust the sliding stroke of the movable seat 301 for patients of different heights, weights, and body types. During movement, the movable seat 301, through its internal limiting rod 303, drives the lifting seat 302 to move synchronously within the cavity. When the lifting seat 302 moves, the guide rods 304 fixed on both sides slide within the inclined grooves of the fixed plate 305. Under the guiding constraint of the inclined grooves, the lifting seat 302 moves synchronously along the limiting rods 303 within the movable seat 301. The lifting motion is completed step by step, which in turn drives the back plate 4 fixed to one side of the lifting seat 302 to achieve a compound movement of extending outward and sliding up and down (the back plate 4 moves synchronously with the lifting seat 302, pushing outward from the cavity of the seat 2 towards the patient's back while continuously moving upward towards the patient's head. The contact point with the human body gradually moves upward from the buttocks along the lumbosacral region and the lower back, and finally fully unfolds and fits the entire back muscle group of the patient, completing the position transition from the buttocks to the back). This ensures that the back plate 4 always fits the contour of the patient's back, can dynamically fit the back curve of different patients, adapt to the changes in the center of gravity of patients of different body types when lifting, avoid the backward shift of the center of gravity and the slippage of the buttocks caused by the instant of starting from sitting or standing, and eliminate the risk of secondary injury. At the same time, the back plate 4 assist unit greatly reduces the force required for the patient's upper limbs to press and start, perfectly adapting to the characteristics of weak upper limb strength of patients with spinal cord injury.

[0054] After the patient's lower limb is inserted between two sets of contact plates 6, the lower limb is flexibly fixed to the contact plates 6 by the restraint strap 7. Different body types experience different compressive forces on the contact plates 6 during insertion, causing the contact plates 6 to adapt and compress the return spring on one side. After the patient is removed from the device, the contact plates 6 automatically return to their original position under the elastic force of the return spring. When the contact plates 6 move, they drive the elastic moving frame 801 fixed to one side to move synchronously. The elastic moving frame 801 drives the connecting frame 802 to move horizontally. Since the connecting frame 802 is fixedly connected to the moving plate 803, the movement... The plate 803 moves synchronously with the connecting frame 802, and the moving plate 803 is slidably connected to the push plate 804. The moving plate 803 moves the push plate 804 synchronously. Since the contact between the push plate 804 and the fixed rod 805 is both inclined, and the fixed rod 805 is fixedly connected to the inner wall of the cavity opened by the fixed seat 5, when the push plate 804 moves left and right with the moving plate 803, it rises and falls synchronously in the cavity opened by the moving plate 803, thereby driving the lifting frame 806 fixed with the push plate 804 to move vertically, realizing a pure mechanical closed-loop transmission of body shape perception and displacement conversion.

[0055] When the lifting frame 806 moves vertically, it drives the connecting ring 101 fixed to it to move up and down synchronously. Since the connecting ring 101 is slidably connected to the roller fixed at one end of the guide frame 102, the movement of the connecting ring 101 drives the guide frame 102 to rotate. The rotation of the guide frame 102 drives the connecting shaft 103 fixed at one end to rotate inside the connecting seat 9, which in turn drives the rotating frame 104 fixed at one end of the connecting shaft 103 to rotate. This causes the knee support 11 fixed at one end of the rotating frame 104 to adjust its angle. The contact angle of the knee support 11 matches the patient's lower limb type and force state in real time. The knee support 11 can achieve adaptive angle adjustment without manual adjustment, and can adapt to patients of different heights, weights, leg circumferences and body types. This solves the core technical defects of the existing standing frame 1 knee support 11 with fixed angle and poor adaptability of support components.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention are within the scope of the present invention.

Claims

1. A lower limb rehabilitation training device for spinal cord injury, comprising a standing frame (1), characterized in that: The standing frame (1) is rotatably connected to a seat (2) via a pneumatic cylinder. A pushing component is installed inside the seat (2). A back plate (4) is fixed to one end of the pushing component, and the pushing component drives the back plate (4) to assist in pushing the patient's back. A physiotherapy head (13) is provided on one side of the back plate (4). A fixed seat (5) is symmetrically fixed to the end of the bottom plate of the standing frame (1). A massage head (12) is symmetrically provided on one side of the fixed seat (5), and the massage head (12) fits against the patient's calf muscles. Abutment plates (6) are symmetrically arranged. A return spring is provided on one side of the abutment plate (6). A restraint strap (7) is movably connected to the abutment plate (6). A fixing component is provided on one side of the abutment plate (6), and the distance between the two abutment plates (6) is adjusted by the fixing component. A connecting seat (9) is fixed inside the fixing seat (5). An angle adjustment component is provided on one side of the connecting seat (9). A knee support (11) is fixed on one side of the angle adjustment component, and the tilt of the knee support (11) is adjusted by the angle adjustment component. The fixing assembly includes an elastic movable frame (801) fixed to one side of the contact plate (6), wherein a connecting frame (802) is fixed to the outer wall of one of the elastic movable frames (801), a movable plate (803) is fixed to one side of the connecting frame (802), a push plate (804) is slidably connected to one side of the movable plate (803), a fixed rod (805) is slidably connected to the bottom end of the push plate (804), and a lifting frame (806) is fixed to the top end of the push plate (804). The angle adjustment assembly includes a connecting ring (101) fixed to the bottom of the lifting frame (806), the connecting ring (101) is slidably connected to a guide frame (102), a connecting shaft (103) is fixed to one side of the guide frame (102), a rotating frame (104) is fixed to one end of the connecting shaft (103), and one side of the rotating frame (104) is fixedly connected to the knee support (11).

2. The lower limb rehabilitation training device for spinal cord injury according to claim 1, characterized in that: The pushing assembly includes a movable seat (301) disposed in the seat (2), an electric push rod fixed on one side of the movable seat (301), a lifting seat (302) slidably connected inside the movable seat (301), guide rods (304) fixed on both sides of the lifting seat (302), a fixed plate (305) slidably connected to the guide rods (304), and the top of the lifting seat (302) fixedly connected to the back plate (4).

3. The lower limb rehabilitation training device for spinal cord injury according to claim 2, characterized in that: A limiting rod (303) is fixed inside the movable seat (301), the limiting rod (303) passes through the lifting seat (302), and the limiting rod (303) is slidably connected to the lifting seat (302).

4. The lower limb rehabilitation training device for spinal cord injury according to claim 3, characterized in that: The seat (2) has a cavity that moves with the movable seat (301) and the lifting seat (302). The inner wall of the cavity is fixedly connected to the fixed plate (305). The fixed plate (305) has a sliding groove that moves with the guide rod (304), and the sliding groove is oblique.

5. The lower limb rehabilitation training device for spinal cord injury according to claim 1, characterized in that: The elastic movable frame (801) is fixedly connected to the connecting seat (9). The fixed seat (5) has a cavity that allows the connecting frame (802), the push plate (804) and the lifting frame (806) to move. The movable plate (803) has a cavity that allows the push plate (804) to slide.

6. The lower limb rehabilitation training device for spinal cord injury according to claim 5, characterized in that: The push plate (804) has a trapezoidal cross section, and the contact surfaces of the fixed rod (805) and the push plate (804) are both inclined surfaces. The fixed rod (805) is fixedly connected to the inner wall of the cavity opened by the fixed seat (5).

7. The lower limb rehabilitation training device for spinal cord injury according to claim 1, characterized in that: The connecting shaft (103) is rotatably connected to the connecting seat (9), and the fixed seat (5) has a cavity that allows the connecting ring (101), the connecting shaft (103) and the rotating frame (104) to move.

8. The lower limb rehabilitation training device for spinal cord injury according to claim 7, characterized in that: The guide frame (102) has an "L" shaped cross section, and the connecting ring (101) has a cavity that cooperates with the roller at one end of the guide frame (102).

Images