Knee osteoarthritis rehabilitation training device

Abstract

The invention relates to the technical field of arthritis rehabilitation training, in particular to a knee osteoarthritis rehabilitation training device which comprises a seat frame, a rotating shaft, a seat plate, a backup plate, a sliding block, a first spring and the like, the lower portion of the seat frame is rotationally connected with the rotating shaft, the rotating shaft is connected with the seat plate, and the upper portion of the seat frame is connected with the backup plate; sliding blocks are slidably connected to the front side and the rear side of the seat frame, and first springs are connected between the sliding blocks and the seat frame. The pushing plate can be driven by the lead screw motor to move downwards, the pushing plate pushes the supporting rod, so that the supporting rod rotates, the supporting rod drives the suction cup to rotate, the suction cup rotates to be in a horizontal state, the suction cup is adsorbed to the ground, the backup plate is supported, and a patient can lean against the backup plate to conduct wall-leaning squat training; and a user can walk to the wall without other tools, so that the operation is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of arthritis rehabilitation training, and in particular to a rehabilitation training device for knee osteoarthritis. Background Art

[0002] Osteoarthritis of the knee is a common chronic joint disease that can cause knee pain, stiffness and limited movement. During treatment, patients need to undergo regular rehabilitation training to improve their condition.

[0003] The patent with publication number CN109481237B discloses a rehabilitation device for patients with knee arthritis, including a base, a plurality of supporting legs are fixed at the lower end of the base, a seat is fixed at the upper end of the base, a rotatable chair back is provided on the upper left side of the base, a first connecting rod is hinged at the front and rear ends of the right side of the lower end of the base respectively, a second connecting rod is hinged at the right end of each first connecting rod, a pedal is fixed on the inner side of the lower part of each second connecting rod, two racks that can slide horizontally are symmetrically provided at the lower end of the base, a third connecting rod is hinged at the right end of each rack, and the third connecting rod is hinged and fixed to the first connecting rod; each second connecting rod is provided with a sliding groove along the length direction of the second connecting rod, a sliding shaft is slidably provided in the sliding groove, the outer end of the sliding shaft passes through the sliding groove and is connected to a fourth connecting rod, and the other end of the fourth connecting rod is hinged to a first gear rotatably arranged below the base.

[0004] The above patent enables the patient's lower limbs to swing accordingly through the swing of the second connecting rod, so as to perform sitting leg extension training. There are various ways of rehabilitation training, and through diversified training methods, better recovery effects can be achieved. Patients often do wall squat training, which is to bend the knees and lean against the wall. However, the patient's knee joint movement is limited, which makes it inconvenient for the patient to move. The patient needs to use crutches or other tools to walk to the wall, which is inconvenient to operate. Summary of the invention

[0005] In order to overcome the disadvantage that the patient's knee joint movement is limited, which makes it inconvenient for the patient to move and requires the patient to use crutches or other tools to walk to the wall, which is inconvenient to operate, the present invention provides a knee osteoarthritis rehabilitation training device.

[0006] The technical solution is as follows: A rehabilitation training device for knee osteoarthritis, comprising a seat frame, a rotating shaft, a seat plate, a back plate, a slider, a first spring, a support rod, a suction cup, a wedge-shaped baffle, a sliding shaft, a pressing mechanism, a ventilation mechanism and a supporting mechanism. The lower part of the seat frame is rotatably connected to the rotating shaft, the seat plate is connected to the rotating shaft, the upper part of the seat frame is connected to the back plate, the front and rear sides of the seat frame are slidably connected to the slider, a first spring is connected between the slider and the seat frame, the sliders are rotatably connected to the support rods, the lower ends of the support rods are installed with suction cups, the front and rear sides of the left side of the seat frame are connected to the wedge-shaped baffle, the support rods are connected to the sliding shaft, the sliding shaft is in contact with the inclined surface on the wedge-shaped baffle, the pressing mechanism is used to press the support rod to rotate the suction cup to a horizontal state so that the suction cup can support the seat frame, the ventilation mechanism is used to ventilate the inside of the suction cup, and the support mechanism is used to support the seat plate to keep the seat plate in a horizontal state.

[0007] Optionally, the pressing mechanism includes a connecting plate, a screw motor, a pushing plate and a vertical guide rod. The connecting plate is connected to the left side of the seat frame, and a screw motor is installed on the back plate. The screw of the screw motor is rotatably connected to the connecting plate, and the pushing plate is threadedly connected to the screw of the screw motor. The pushing plate is used to press the support rod to rotate the support rod, and the support rod drives the suction cup to rotate and rotate the suction cup to a horizontal state. The suction cup is adsorbed on the ground to support the seat frame. The back plate is connected to the vertical guide rod, the vertical guide rod is connected to the connecting plate, and the vertical guide rod is slidably connected to the push plate.

[0008] Optionally, the ventilation mechanism includes a blocking block, a second spring, a sliding sleeve, a pull rope and a limit block. The top of the suction cup is slidably connected to the blocking block, and a notch is provided at the bottom of the blocking block. A second spring is connected between the suction cup and the blocking block. The support rod is slidably connected to the sliding sleeve, and a pull rope is connected to the sliding sleeve. The pull rope is connected to the blocking block, and the pull rope is used to pull the blocking block upward to connect the notch to the outside world and ventilate the inside of the suction cup. The support rod is connected to a limit block for blocking the sliding sleeve.

[0009] Optionally, the supporting mechanism includes a supporting block, an insert plate, a connecting block, a horizontal guide rod, a third spring, a releasing assembly and a rotating assembly. The support blocks are connected to the front and rear sides of the lower part of the seat frame, the insert plates are slidably connected to the front and rear sides of the bottom of the seat plate, the insert plates are located in the supporting blocks so that the support blocks can support the seat plate, the bottom of the seat plate is connected to a connecting block, the front and rear sides of the connecting block are connected to horizontal guide rods, the horizontal guide rod and the insert plate are slidably connected, a third spring is connected between the connecting block and the insert plate, the releasing assembly is used to move the insert plate out of the supporting block to rotate the seat plate downward, and the rotating assembly is used to rotate the seat plate to a horizontal state.

[0010] Optionally, the loosening assembly includes a contact plate, a sliding frame and a wedge-shaped push plate. The contact plate is connected to the bottom of the plug plate. The sliding frame is threadedly connected to the screw of the screw motor. The sliding frame and the vertical guide rod are slidably connected. The front and rear sides of the bottom of the sliding frame are connected to wedge-shaped push plates. The wedge-shaped push plate is used to push the contact plate to move the contact plate, and the contact plate drives the plug plate to move, so that the plug plate is moved out of the support block.

[0011] Optionally, the rotating assembly includes a gear and a rack, the front and rear ends of the rotating shaft are connected to the gear through a one-way clutch, the front and rear sides of the bottom of the sliding frame are connected to the rack, and the rack and the gear are meshed.

[0012] Optionally, a leg-lifting mechanism is also included, which includes a rotating plate, a pedal, a mounting plate and an electric push rod. The front and rear sides of the seat frame are rotatably connected to the rotating plates, and the rotating plates are rotatably connected to the pedals. The front and rear sides of the seat frame are connected to the mounting plates, and the mounting plates are rotatably connected to the electric push rods. The telescopic rod of the electric push rod is rotatably connected to the rotating plate.

[0013] Optionally, a wire sleeve is also included, and the lower part of the support rod is connected to the wire sleeve, and the pull rope passes through the wire sleeve.

[0014] The beneficial effects of the present invention are: 1. The present invention can drive the push plate to move downward through the screw motor, and the push plate pushes the support rod to rotate the support rod, and the support rod drives the suction cup to rotate, and the suction cup is rotated to a horizontal state. The suction cup is adsorbed on the ground to support the back board. The patient can lean on the back board and perform static squat training against the wall without the need to use other tools to walk to the wall, and the operation is more convenient.

[0015] 2. The telescopic rod of the electric push rod can drive the rotating plate to swing left and right, and the rotating plate drives the pedal to swing left and right, so that the patient's legs can swing up and down, and the sitting leg extension training can be performed, providing a variety of training methods to improve the training effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0017] Figure 2 The three-dimensional structural schematic diagram of the sliding block, the first spring, the wedge-shaped stopper and the sliding shaft of the present invention is shown.

[0018] Figure 3 A three-dimensional structural schematic diagram of the pressing mechanism of the present invention is shown.

[0019] Figure 4 A three-dimensional structural schematic diagram of the ventilation mechanism of the present invention is shown.

[0020] Figure 5 A cross-sectional view of a suction cup according to the present invention is shown.

[0021] Figure 6 A three-dimensional structural schematic diagram of the support mechanism of the present invention is shown.

[0022] Figure 7 A three-dimensional structural schematic diagram of the plug plate, the connecting block, the horizontal guide rod and the third spring of the present invention is shown.

[0023] Figure 8 The three-dimensional structural schematic diagram of the sliding frame, wedge-shaped push plate, gear and rack of the present invention is shown.

[0024] Fig. 9 A three-dimensional structural schematic diagram of the leg lifting mechanism of the present invention is shown.

[0025] Wherein: 1: seat frame, 2: rotating shaft, 3: seat plate, 4: back plate, 5: slider, 6: first spring, 7: support rod, 8: suction cup, 9: wedge baffle, 10: sliding shaft, 11: connecting plate, 12: screw motor, 13: push plate, 14: vertical guide rod, 15: blocking block, 16: notch, 17: second spring, 18: sliding sleeve, 19: pull rope, 20: limit block, 21: support block, 22: plug plate, 23: connecting block, 24: horizontal guide rod, 25: third spring, 26: contact plate, 27: sliding frame, 28: wedge push plate, 29: gear, 30: rack, 31: rotating plate, 32: pedal, 34: mounting plate, 35: electric push rod, 36: wire sleeve. DETAILED DESCRIPTION

[0026] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0027] like Figure 1-Figure 8As shown, a knee osteoarthritis rehabilitation training device includes a seat frame 1, a rotating shaft 2, a seat plate 3, a backing plate 4, a slider 5, a first spring 6, a support rod 7, a suction cup 8, a wedge-shaped baffle 9, a sliding shaft 10, a pressing mechanism, a ventilation mechanism and a supporting mechanism. The rear side of the lower part of the seat frame 1 is rotatably connected to the rotating shaft 2, the seat plate 3 is connected to the rotating shaft 2, the upper part of the seat frame 1 is connected to the backing plate 4, the upper part of the seat frame 1 is slidably connected to the slider 5 on both the front and rear sides of the upper part of the seat frame 1, the first spring 6 is connected between the bottom of the slider 5 and the seat frame 1, and the two sliders 5 are connected to the seat frame 1. The sides that are away from each other are rotatably connected to support rods 7, and suction cups 8 are installed at the lower ends of the support rods 7. Wedge-shaped baffles 9 are connected to the front and rear sides of the left side of the seat frame 1. The upper parts of the two support rods 7 that are close to each other are connected to sliding shafts 10. The sliding shafts 10 are in contact with the inclined surfaces on the wedge-shaped baffles 9. The pressing mechanism is used to press the support rods 7 to rotate the suction cups 8 to a horizontal state so that the suction cups 8 can support the seat frame 1. The ventilation mechanism is used to ventilate the inside of the suction cups 8. The support mechanism is used to support the seat plate 3 to keep the seat plate 3 in a horizontal state.

[0028] like Figure 1 and Figure 3 As shown, the pressing mechanism includes a connecting plate 11, a screw motor 12, a pushing plate 13 and a vertical guide rod 14. The connecting plate 11 is connected to the lower left part of the seat frame 1, and the screw motor 12 is installed in the middle part of the left side of the back plate 4. The lower end of the screw of the screw motor 12 is rotatably connected to the connecting plate 11, and the pushing plate 13 is connected to the screw of the screw motor 12 through a thread. The front and rear sides of the left side of the back plate 4 are connected to the vertical guide rod 14, the lower end of the vertical guide rod 14 is connected to the top of the connecting plate 11, and the vertical guide rod 14 and the pushing plate 13 are slidably connected.

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the ventilation mechanism includes a blocking block 15, a second spring 17, a sliding sleeve 18, a pull rope 19 and a limit block 20. The top of the suction cup 8 is slidably connected with the blocking block 15, and notches 16 are provided on the left and right sides of the lower part of the blocking block 15. The second spring 17 is sleeved on the blocking block 15, and the two ends of the second spring 17 are respectively connected to the suction cup 8 and the blocking block 15. The upper part of the support rod 7 is slidably connected with the sliding sleeve 18, and the bottom of the sliding sleeve 18 is connected with a pull rope 19. The lower end of the pull rope 19 is connected to the upper end of the blocking block 15, and the upper part of the support rod 7 is connected with the limit block 20. The limit block 20 can block the sliding sleeve 18 to prevent the sliding sleeve 18 from sliding down.

[0030] like Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, the supporting mechanism includes a supporting block 21, an insert plate 22, a connecting block 23, a horizontal guide rod 24, a third spring 25, a releasing assembly and a rotating assembly. The front and rear sides of the lower part of the seat frame 1 are connected to the supporting blocks 21, the front and rear sides of the bottom of the seat plate 3 are slidably connected to the insert plates 22, the insert plates 22 are located in the supporting block 21, the middle of the right side of the bottom of the seat plate 3 is connected to the connecting block 23, the front and rear sides of the connecting block 23 are connected to the horizontal guide rod 24, the horizontal guide rod 24 and the insert plate 22 are slidably connected, the horizontal guide rod 24 is sleeved with a third spring 25, the two ends of the third spring 25 are respectively connected to the connecting block 23 and the insert plate 22, the releasing assembly is used to move the insert plate 22 out of the supporting block 21 to rotate the seat plate 3 downward, and the rotating assembly is used to rotate the seat plate 3 to a horizontal state.

[0031] like Figure 6 and Figure 8 As shown, the loosening assembly includes a contact plate 26, a sliding frame 27 and a wedge-shaped push plate 28. The contact plate 26 is connected to the bottom of the plug plate 22. The sliding frame 27 is threadedly connected to the screw of the screw motor 12. The sliding frame 27 is slidably connected to the vertical guide rod 14. The wedge-shaped push plates 28 are connected to the front and rear sides of the bottom of the sliding frame 27.

[0032] like Figure 6 and Figure 8 As shown, the rotating assembly includes a gear 29 and a rack 30. The front and rear ends of the rotating shaft 2 are connected to the gear 29 through a one-way clutch. The front and rear sides of the bottom of the sliding frame 27 are connected to the rack 30. The rack 30 is meshed with the gear 29.

[0033] like Figure 1 and Fig. 9 As shown, it also includes a leg lifting mechanism, which includes a rotating plate 31, a pedal 32, a mounting plate 34 and an electric push rod 35. The rotating plates 31 are rotatably connected to the front and rear sides of the lower part of the seat frame 1, and the pedals 32 are rotatably connected to the lower part of the rotating plate 31. The mounting plates 34 are connected to the front and rear sides of the lower part of the seat frame 1, and the electric push rod 35 is rotatably connected to the sides of the two mounting plates 34 away from each other. The telescopic rod of the electric push rod 35 is rotatably connected to the rotating plate 31.

[0034] like Figure 4 As shown, a wire sleeve 36 is also included. The lower part of the support rod 7 is connected to the wire sleeve 36, and the pull rope 19 passes through the wire sleeve 36.

[0035] The patient sits on the seat plate 3, and the insert plate 22 is located in the support block 21, so the support block 21 can support the seat plate 3 to prevent the seat plate 3 from rotating downward. Then the patient's feet are placed on the two pedals 32 respectively, and the telescopic rod of the electric push rod 35 is controlled to extend and retract, driving the rotating plate 31 to swing left and right. The rotating plate 31 drives the pedal 32 to swing left and right, so that the patient's legs swing up and down, and the sitting leg extension training is performed. When the patient wants to do static squat training against the wall, he can get up from the seat plate 3, and then control the screw motor 12 to drive the push plate 13 to move downward, and the push plate 13 pushes the support rod 7 to rotate the support rod 7, and the support rod 7 drives the suction cup 8 to rotate, and the suction cup 8 is rotated to a horizontal state. At the same time, the support rod 7 can also drive the slider 5, the suction cup 8 and the sliding shaft 10 to move The first spring 6 is compressed, the sliding shaft 10 and the inclined surface on the wedge-shaped baffle plate 9 are out of contact, the wedge-shaped baffle plate 9 blocks the sliding shaft 10, so that the suction cup 8 remains horizontal, and then the suction cup 8 contacts the ground, and then the suction cup 8 is adsorbed on the ground, so that the seat frame 1 and the backboard 4 can be supported, and the stability of the seat frame 1 and the backboard 4 is improved. The screw motor 12 can also drive the sliding frame 27 to move downward, and the sliding frame 27 drives the wedge-shaped push plate 28 and the rack 30 to move downward, and the rack 30 drives the gear 29 to rotate. Under the action of the one-way clutch, the gear 29 will not drive the rotating shaft 2 to rotate, and the wedge-shaped push plate 28 pushes the contact plate 26, so that the two contact plates 26 move in the direction of approaching each other, thereby causing the two plug plates 22 to move in the direction of approaching each other, and the third spring The spring 25 is compressed, the plug plate 22 moves out of the support block 21, and the seat plate 3 rotates downward under the action of its own gravity. At this time, the wedge-shaped push plate 28 and the contact plate 26 are out of contact. Under the action of the third spring 25, the two plug plates 22 move away from each other, and the patient can lean on the support plate 4 to perform static squat training against the wall. There is no need to use other tools to walk to the wall, and the operation is more convenient. There is no need to perform static squat training against the wall. The sliding sleeve 18 is pulled upward, and the sliding sleeve 18 pulls the blocking block 15 upward through the pull rope 19 to make the notch 16 communicate with the outside world, so that the inside of the suction cup 8 can be ventilated, so that the suction cup 8 is not adsorbed on the ground. The wire sleeve 36 can guide the pull rope 19 to prevent the pull rope 19 from being scattered, and then the screw motor 12 is controlled to drive the push The plate 13 moves upward, and the push plate 13 no longer pushes the support rod 7. Under the action of the first spring 6, the slider 5 moves upward, so that the support rod 7 moves upward, and the screw motor 12 can also drive the sliding frame 27 to move upward, and the sliding frame 27 drives the wedge-shaped push plate 28 and the rack 30 to move upward, and the rack 30 drives the gear 29 to rotate in the opposite direction, and the gear 29 drives the rotating shaft 2 to rotate, and the rotating shaft 2 drives the seat plate 3 to rotate upward, and the seat plate 3 is rotated to a horizontal state. The seat plate 3 can also drive the plug plate 22 to rotate upward. When the plug plate 22 rotates upward and contacts the support block 21, the two plug plates 22 will move in a direction close to each other, and the third spring 25 is compressed, and then the plug plate 22 is served, and the plug plate 22 will be inserted into the support block 21, and the support block 21 supports the seat plate 3.Prevent the seat plate 3 from rotating downward.

[0036] Although the present invention has been shown and described with reference to specific exemplary embodiments of the present invention, it will be appreciated by those skilled in the art that, without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents, various changes in form and detail may be made to the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims, and the above description is only for exemplary purposes and is not meant to limit the present invention. It will be appreciated by those skilled in the art that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A knee osteoarthritis rehabilitation training device, comprising a seat frame (1), characterized in that: The seat frame (1) further comprises a rotating shaft (2), a seat plate (3), a backing plate (4), a sliding block (5), a first spring (6), a support rod (7), a suction cup (8), a wedge-shaped baffle (9), a sliding shaft (10), a pressing mechanism, a ventilation mechanism and a supporting mechanism. The lower part of the seat frame (1) is rotatably connected to the rotating shaft (2), the seat plate (3) is connected to the rotating shaft (2), the backing plate (4) is connected to the upper part of the seat frame (1), the front and rear sides of the seat frame (1) are both slidably connected to the sliding blocks (5), the first spring (6) is connected between the sliding block (5) and the seat frame (1), and the sliding blocks (5) are both rotatably connected to the seat frame (1). A support rod (7) is dynamically connected, and a suction cup (8) is installed at the lower end of the support rod (7). A wedge-shaped baffle (9) is connected to the front and rear sides of the left side of the seat frame (1). A sliding shaft (10) is connected to the support rod (7). The sliding shaft (10) is in contact with the inclined surface on the wedge-shaped baffle (9). The pressing mechanism is used to press the support rod (7) to rotate the suction cup (8) to a horizontal state so that the suction cup (8) can support the seat frame (1). The ventilation mechanism is used to ventilate the inside of the suction cup (8). The support mechanism is used to support the seat plate (3) so that the seat plate (3) remains in a horizontal state.

2. A knee osteoarthritis rehabilitation training device according to claim 1, characterized in that: The pressing mechanism comprises a connecting plate (11), a screw motor (12), a pushing plate (13) and a vertical guide rod (14). The left side of the seat frame (1) is connected to the connecting plate (11). The screw motor (12) is installed on the back plate (4). The screw of the screw motor (12) is rotatably connected to the connecting plate (11). The screw of the screw motor (12) is connected to the pushing plate (13) by a thread. The pushing plate (13) is used to press the support rod (7) to rotate the support rod (7). The support rod (7) drives the suction cup (8) to rotate and rotate the suction cup (8) to a horizontal state. The suction cup (8) is adsorbed on the ground to support the seat frame (1). The back plate (4) is connected to the vertical guide rod (14). The vertical guide rod (14) is connected to the connecting plate (11). The vertical guide rod (14) and the pushing plate (13) are slidably connected.

3. A knee osteoarthritis rehabilitation training device according to claim 2, characterized in that: The ventilation mechanism comprises a blocking block (15), a second spring (17), a sliding sleeve (18), a pull rope (19) and a limit block (20); the top of the suction cup (8) is slidably connected to the blocking block (15); a notch (16) is provided at the bottom of the blocking block (15); a second spring (17) is connected between the suction cup (8) and the blocking block (15); the support rod (7) is slidably connected to the sliding sleeve (18); the sliding sleeve (18) is connected to the pull rope (19); the pull rope (19) is connected to the blocking block (15); the pull rope (19) is used to pull the blocking block (15) upward to make the notch (16) communicate with the outside world and ventilate the inside of the suction cup (8); the support rod (7) is connected to the limit block (20) for blocking the sliding sleeve (18).

4. A knee osteoarthritis rehabilitation training device according to claim 3, characterized in that: The support mechanism comprises a support block (21), an insert plate (22), a connecting block (23), a horizontal guide rod (24), a third spring (25), a release component and a rotation component. The front and rear sides of the lower part of the seat frame (1) are connected to the support block (21). The front and rear sides of the bottom of the seat plate (3) are slidably connected to the insert plate (22). The insert plate (22) is located in the support block (21) so that the support block (21) can support the seat plate (3). The bottom of the seat plate (3) is connected to the connecting block (23). The front and rear sides of the connecting block (23) are connected to the horizontal guide rod (24). The horizontal guide rod (24) and the insert plate (22) are slidably connected. The third spring (25) is connected between the connecting block (23) and the insert plate (22). The release component is used to move the insert plate (22) out of the support block (21) so that the seat plate (3) rotates downward. The rotation component is used to rotate the seat plate (3) to a horizontal state.

5. A knee osteoarthritis rehabilitation training device according to claim 4, characterized in that: The release assembly comprises a contact plate (26), a sliding frame (27) and a wedge-shaped push plate (28), the bottom of the plug plate (22) is connected to the contact plate (26), the screw of the screw motor (12) is connected to the sliding frame (27) by a thread, the sliding frame (27) and the vertical guide rod (14) are slidably connected, the front and rear sides of the bottom of the sliding frame (27) are connected to the wedge-shaped push plate (28), the wedge-shaped push plate (28) is used to push the contact plate (26), so that the contact plate (26) moves, and the contact plate (26) drives the plug plate (22) to move, so that the plug plate (22) moves out of the support block (21).

6. A knee osteoarthritis rehabilitation training device according to claim 5, characterized in that: The rotating assembly comprises a gear (29) and a rack (30), the front and rear ends of the rotating shaft (2) are connected to the gear (29) via a one-way clutch, the front and rear sides of the bottom of the sliding frame (27) are connected to the rack (30), and the rack (30) and the gear (29) are meshed.

7. A knee osteoarthritis rehabilitation training device according to claim 6, characterized in that: The invention also comprises a leg-lifting mechanism, which comprises a rotating plate (31), a pedal (32), a mounting plate (34) and an electric push rod (35); the rotating plate (31) is rotatably connected to the front and rear sides of the seat frame (1); the rotating plate (31) is rotatably connected to the pedal (32); the mounting plate (34) is rotatably connected to the front and rear sides of the seat frame (1); the mounting plate (34) is rotatably connected to the electric push rod (35); and the telescopic rod of the electric push rod (35) is rotatably connected to the rotating plate (31).

8. A knee osteoarthritis rehabilitation training device according to claim 7, characterized in that: It also includes a wire sleeve (36), the lower part of the support rod (7) is connected to the wire sleeve (36), and the pull rope (19) passes through the wire sleeve (36).

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