Leg rehabilitation training device

Abstract

The utility model discloses a kind of leg rehabilitation training devices.It includes base, driving mechanism and leg support mechanism, the driving mechanism includes the bracket being set at the top of base, two symmetrically set swing lever in the left and right sides of bracket and the driving module for driving swing lever swing forwards and backwards, the swing lever top end is rotatably connected with bracket, the swing lever bottom end is equipped with connecting sleeve, the leg support mechanism includes two symmetrically set leg support structure in the left and right sides of driving mechanism, the leg support structure includes support assembly and the rotating shaft rotatably connected with support assembly, the rotating shaft inside and the connecting sleeve of corresponding side can be detachably connected.The up-and-down activity amplitude of the leg support structure of the utility model is very small, avoid the knee joint of patient to receive greater impact force, and leg support structure is detachable, convenient for subsequent replacement maintenance.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation training equipment technology, and in particular to a leg rehabilitation training equipment. Background Technology

[0002] Patients with leg injuries or paralysis are unable to move independently, and prolonged inactivity can lead to muscle atrophy and impaired mobility, necessitating a series of rehabilitation exercises. Currently, leg rehabilitation trainers are commonly used for leg training. However, traditional leg rehabilitation trainers involve a large range of motion in the patient's legs, resulting in significant impact on the knee joint. Furthermore, the leg support structure is not removable, making subsequent replacement and maintenance inconvenient. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a leg rehabilitation training device with a very small range of vertical movement of the leg support structure, which avoids the patient's knee joint from being subjected to large impact forces. In addition, the leg support structure is detachable, which facilitates subsequent replacement and maintenance.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a leg rehabilitation training device, comprising a base, a drive mechanism, and a leg support mechanism. The drive mechanism includes a bracket mounted on the top of the base, two swing arms symmetrically arranged on the left and right sides of the bracket, and a drive module for driving the swing arms to swing back and forth. The top of the swing arm is rotatably connected to the bracket, and the bottom of the swing arm is provided with a connecting sleeve. The leg support mechanism includes two leg support structures symmetrically arranged on the left and right sides of the drive mechanism. Each leg support structure includes a support component and a rotating shaft rotatably connected to the support component. The inner side of the rotating shaft is detachably connected to the connecting sleeve on the corresponding side.

[0006] In this system, the patient sits in a chair with their feet resting on the support assembly. The drive module moves the swing arm back and forth, causing the support assembly to move in the same direction, thus providing leg rehabilitation training. The support assembly moves smoothly with minimal vertical movement, avoiding excessive impact on the patient's knee joint. Furthermore, because the leg support structure is detachable, it is easy to replace and maintain if damaged.

[0007] Preferably, the drive module includes a motor frame mounted on the top of the base, a drive motor mounted on the motor frame, and two transmission components symmetrically arranged on the left and right sides of the drive motor. Each transmission component includes a crank, a connecting rod, and a connecting plate. One end of the crank is fixedly connected to the output shaft of the drive motor, and the other end of the crank is rotatably connected to the rear end of the connecting rod. The front end of the connecting rod is rotatably connected to the rear end of the connecting plate, and the front end of the connecting plate is fixedly connected to the lower part of the swing arm on the corresponding side.

[0008] The two cranks are parallel to each other and face opposite directions. The drive motor drives the cranks on both sides to rotate, and the cranks drive the connecting plate to move through the connecting rod, thereby causing the rocker arm to swing back and forth, resulting in high power transmission efficiency.

[0009] Preferably, the connecting piece is perpendicular to the swing arm, and the front end of the connecting piece is located above the connecting sleeve.

[0010] Preferably, the rotating shaft is arranged in a left-right direction, the rotating shaft is rotatably connected to the support assembly, and the inner side of the rotating shaft is inserted into the connecting sleeve on the corresponding side.

[0011] Preferably, the support assembly includes a pedal, the rotating shaft is rotatably connected to the front end of the pedal, a roller is provided at the rear end of the bottom surface of the pedal, and a rolling groove for the roller to roll is provided on the top surface of the base at a position corresponding to the roller, the rolling groove being arranged in a front-to-back direction.

[0012] When the swing arm swings back and forth, only the front end of the pedal moves up and down slightly, reducing the impact on the knee joint.

[0013] Preferably, the base has a housing at the top, the drive mechanism is located inside the housing, and the housing has symmetrical arc-shaped through holes on the left and right sides. The rotating shaft passes through the arc-shaped through hole on the corresponding side. When the drive module drives the swing arm to swing back and forth, the rotating shaft can move back and forth within the arc-shaped through hole.

[0014] Preferably, the support assembly includes an L-shaped leg support, which includes a footrest arranged laterally and a leg guard arranged longitudinally. Both the footrest and the leg guard are provided with fixing straps, and the pivot is rotatably connected to the footrest.

[0015] The footrest, leg guards, and their securing straps can stabilize the patient's legs, making them suitable for rehabilitation training of patients with leg paralysis.

[0016] Preferably, the footrest includes a first arc-shaped receiving plate for accommodating the ball of the foot, the bottom of which is detachably connected to a connecting block, and the pivot is rotatably connected to the connecting block. The leg guard includes a second arc-shaped receiving plate for accommodating the calf.

[0017] Preferably, the bottom surface of the first arc-shaped receiving plate is provided with an upper clamping plate, and a lower clamping plate is provided below the upper clamping plate. The lower clamping plate is provided with through holes symmetrically at both ends. The bottom surface of the upper clamping plate is provided with a threaded rod that passes vertically through the through hole, and a wing nut is provided on the threaded rod. The wing nut is located below the lower clamping plate, and the connecting block is located between the upper clamping plate and the lower clamping plate.

[0018] The leg brace and connecting block are easy to assemble and disassemble, making it convenient to replace different models of leg braces for different patients.

[0019] Preferably, the fixing strap is provided with a fixing piece.

[0020] The beneficial effects of this utility model are: the leg support structure has a very small range of vertical movement, which avoids the patient's knee joint from being subjected to a large impact force, and the leg support structure is detachable, which facilitates subsequent replacement and maintenance. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of Example 1;

[0022] Figure 2 This is a schematic diagram of the internal structure of Example 1;

[0023] Figure 3 This is a schematic diagram of the internal structure of the pedal;

[0024] Figure 4 This is a structural schematic diagram of Example 2;

[0025] Figure 5 yes Figure 4 Side view;

[0026] Figure 6 This is a schematic diagram of the bottom structure of Example 2;

[0027] Figure 7 This is an exploded view of Example 3.

[0028] In the diagram: 1. Base, 2. Bracket, 3. Swing rod, 4. Connecting sleeve, 5. Shaft, 6. Motor frame, 7. Drive motor, 8. Crank, 9. Connecting rod, 10. Connecting plate, 11. Pedal, 12. Roller, 13. Rolling groove, 14. Housing, 15. Arc-shaped through hole, 16. Leg bracket, 17. Foot pedal, 18. Leg guard, 19. Fixing strap, 20. First arc-shaped receiving plate, 21. Connecting block, 22. Second arc-shaped receiving plate, 23. Upper clamping plate, 24. Lower clamping plate, 25. Threaded rod, 26. Wing nut, 27. Fixing plate. Detailed Implementation

[0029] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0030] Example 1: A leg rehabilitation training device according to this example, such as... Figures 1 to 3As shown, it includes a base 1, a drive mechanism, and a leg support mechanism. The drive mechanism includes a bracket 2 set on the top of the base 1, two swing rods 3 symmetrically arranged on the left and right sides of the bracket 2, and a drive module for driving the swing rods 3 to swing back and forth. The top of the swing rod 3 is rotatably connected to the bracket 2, and the bottom of the swing rod 3 is provided with a connecting sleeve 4. The leg support mechanism includes two leg support structures symmetrically arranged on the left and right sides of the drive mechanism. The leg support structure includes a support component and a rotating shaft 5 rotatably connected to the support component. The inner side of the rotating shaft 5 is detachably connected to the connecting sleeve 4 on the corresponding side.

[0031] The drive module includes a motor frame 6 mounted on the top of the base 1, a drive motor 7 mounted on the motor frame 6, and two transmission components symmetrically arranged on the left and right sides of the drive motor 7. The transmission components include a crank 8, a connecting rod 9, and a connecting plate 10. One end of the crank 8 is fixedly connected to the output shaft of the drive motor 7, and the other end of the crank 8 is rotatably connected to the rear end of the connecting rod 9. The front end of the connecting rod 9 is rotatably connected to the rear end of the connecting plate 10. The front end of the connecting plate 10 is fixedly connected to the lower part of the rocker arm 3 on the corresponding side. The connecting plate 10 and the rocker arm 3 are perpendicular to each other, and the front end of the connecting plate 10 is located above the connecting sleeve 4.

[0032] The rotating shaft 5 is oriented left and right, and is rotatably connected to the support assembly. The inner side of the rotating shaft 5 is inserted into the connecting sleeve 4 on the corresponding side. The support assembly includes a pedal 11. The rotating shaft 5 is rotatably connected to the front end of the pedal 11. A roller 12 is provided at the rear end of the bottom surface of the pedal 11. A rolling groove 13 is provided on the top surface of the base 1 at the position corresponding to the roller 12 for the roller 12 to roll. The rolling groove 13 is oriented front and back.

[0033] The base 1 has a housing 14 on top, and the drive mechanism is set inside the housing 14. The housing 14 has symmetrical arc-shaped through holes 15 on the left and right sides. The rotating shaft 5 passes through the arc-shaped through hole 15 on the corresponding side. When the drive module drives the swing arm 3 to swing back and forth, the rotating shaft 5 can move back and forth within the arc-shaped through hole 15.

[0034] In this design, the two cranks are parallel to each other and face opposite directions. The drive motor rotates the cranks on both sides, and the cranks move the connecting plate through the connecting rod, thereby causing the rocker arm to swing back and forth, resulting in high power transmission efficiency.

[0035] In use, the patient sits in a chair with their feet on the pedals. The rollers contact the rolling grooves for support, and the drive module drives the swing arm to swing back and forth. The pedals move back and forth under the action of the swing arm, and the rollers roll along the rolling grooves, thus providing leg rehabilitation training for the patient. When the swing arm swings back and forth, only the front end of the pedal moves up and down slightly, reducing the impact on the knee joint. In addition, because the leg support structure is detachable, it is easy to replace and maintain when the leg support structure is damaged.

[0036] Example 2: A leg rehabilitation training device according to this example, such as Figures 4 to 6As shown, only the leg support mechanism differs from that of Embodiment 1; the rest of the structure is the same as that of Embodiment 1.

[0037] The leg support mechanism includes two leg support structures symmetrically arranged on the left and right sides of the drive mechanism. Each leg support structure includes a support component and a rotating shaft 5 rotatably connected to the support component. The inner side of the rotating shaft 5 is detachably connected to the connecting sleeve 4 on the corresponding side.

[0038] The support assembly includes an L-shaped leg support 16, which includes a foot pedal 17 arranged laterally and a leg guard 18 arranged longitudinally. Both the foot pedal 17 and the leg guard 18 are provided with fixing straps 19, and the fixing straps 19 are provided with fixing pieces 27.

[0039] The footrest 17 includes a first arc-shaped receiving plate 20 for accommodating the ball of the foot. The bottom surface of the first arc-shaped receiving plate 20 is provided with an upper clamping plate 23, and a lower clamping plate 24 is provided below the upper clamping plate 23. The lower clamping plate 24 is provided with through holes at both ends. The bottom surface of the upper clamping plate 23 is provided with a threaded rod 25 that passes vertically through the through hole. A wing nut 26 is provided on the threaded rod 25. The wing nut 26 is located below the lower clamping plate 24. A connecting block 21 is provided between the upper clamping plate 23 and the lower clamping plate 24. The rotating shaft 5 is rotatably connected to the connecting block 21. The leg guard 18 includes a second arc-shaped receiving plate 22 for accommodating the lower leg.

[0040] In this design, the footrest, leg brace, and their fixing straps can secure the patient's leg, making it suitable for rehabilitation training of patients with leg paralysis. Different body types require different leg brace sizes. In this embodiment, the leg brace and connecting block are easy to assemble and disassemble, facilitating the replacement of different models of leg braces for different patients.

[0041] Example 3: A leg rehabilitation training device according to this example, such as... Figure 7 As shown, it includes a base, a drive mechanism, and two leg support mechanisms. The base and drive mechanism are the same as those in Embodiment 1. The two leg support mechanisms are a first leg support mechanism and a second leg support mechanism. The first leg support mechanism is the same as the leg support mechanism in Embodiment 1, and the second leg support mechanism is the same as the leg support mechanism in Embodiment 2.

[0042] In this design, since the leg support mechanism and the drive mechanism are detachably connected, different leg support mechanisms can be selected according to different patients. For patients with general leg injuries, the first leg support mechanism can be selected. When using it, the patient simply places both feet on the pedal 11 of the first leg support mechanism. For patients with leg paralysis, the second leg support mechanism can be selected. When using it, the patient's legs are fixed by the leg bracket 16 of the second leg support mechanism.

Claims

1. A leg rehabilitation training device, characterized in that, The device includes a base (1), a drive mechanism, and a leg support mechanism. The drive mechanism includes a bracket (2) set on the top of the base (1), two swing rods (3) symmetrically arranged on the left and right sides of the bracket (2), and a drive module for driving the swing rods (3) to swing back and forth. The top of the swing rod (3) is rotatably connected to the bracket (2), and the bottom of the swing rod (3) is provided with a connecting sleeve (4). The leg support mechanism includes two leg support structures symmetrically arranged on the left and right sides of the drive mechanism. The leg support structure includes a support component and a rotating shaft (5) rotatably connected to the support component. The inner side of the rotating shaft (5) is detachably connected to the connecting sleeve (4) on the corresponding side.

2. The leg rehabilitation training device according to claim 1, characterized in that, The drive module includes a motor frame (6) set on the top of the base (1), a drive motor (7) set on the motor frame (6), and two transmission components symmetrically arranged on the left and right sides of the drive motor (7). The transmission components include a crank (8), a connecting rod (9), and a connecting piece (10). One end of the crank (8) is fixedly connected to the output shaft of the drive motor (7), and the other end of the crank (8) is rotatably connected to the rear end of the connecting rod (9). The front end of the connecting rod (9) is rotatably connected to the rear end of the connecting piece (10), and the front end of the connecting piece (10) is fixedly connected to the lower part of the swing rod (3) on the corresponding side.

3. A leg rehabilitation training device according to claim 2, characterized in that, The connecting piece (10) is perpendicular to the swing arm (3), and the front end of the connecting piece (10) is located above the connecting sleeve (4).

4. A leg rehabilitation training device according to claim 1, characterized in that, The rotating shaft (5) is arranged in a left-right direction. The rotating shaft (5) is rotatably connected to the support assembly. The inner side of the rotating shaft (5) is inserted into the connecting sleeve (4) on the corresponding side.

5. A leg rehabilitation training device according to claim 1, characterized in that, The support assembly includes a pedal (11), the rotating shaft (5) is rotatably connected to the front end of the pedal (11), a roller (12) is provided at the rear end of the bottom surface of the pedal (11), and a rolling groove (13) is provided on the top surface of the base (1) at a position corresponding to the roller (12) for the roller (12) to roll, and the rolling groove (13) is arranged in a front-back direction.

6. A leg rehabilitation training device according to claim 1, characterized in that, The base (1) has a housing (14) on top, and the drive mechanism is set inside the housing (14). The housing (14) has symmetrical arc-shaped through holes (15) on the left and right sides. The rotating shaft (5) passes through the arc-shaped through hole (15) on the corresponding side. When the drive module drives the swing arm (3) to swing back and forth, the rotating shaft (5) can move back and forth in the arc-shaped through hole (15).

7. A leg rehabilitation training device according to claim 1, characterized in that, The support assembly includes an L-shaped leg support (16), which includes a foot pedal (17) arranged laterally and a leg guard (18) arranged longitudinally. Both the foot pedal (17) and the leg guard (18) are provided with fixing straps (19), and the pivot (5) is rotatably connected to the foot pedal (17).

8. A leg rehabilitation training device according to claim 7, characterized in that, The footrest (17) includes a first arc-shaped receiving plate (20) for accommodating the foot, and a connecting block (21) is detachably connected to the bottom of the first arc-shaped receiving plate (20). The pivot (5) is rotatably connected to the connecting block (21). The leg guard (18) includes a second arc-shaped receiving plate (22) for accommodating the calf.

9. A leg rehabilitation training device according to claim 8, characterized in that, The bottom surface of the first arc-shaped receiving plate (20) is provided with an upper clamping plate (23), and a lower clamping plate (24) is provided below the upper clamping plate (23). The lower clamping plate (24) is provided with through holes at both ends. The bottom surface of the upper clamping plate (23) is provided with a threaded rod (25) that passes vertically through the through hole. A wing nut (26) is provided on the threaded rod (25). The wing nut (26) is located below the lower clamping plate (24). The connecting block (21) is located between the upper clamping plate (23) and the lower clamping plate (24).

10. A leg rehabilitation training device according to claim 7, characterized in that, The fixing strap (19) is provided with a fixing piece (27).

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