Angle-adjustable rehabilitation exercise device for orthopedics department
By adopting a combination design of large gears and damping springs in the orthopedic rehabilitation exercise device, the problem that traditional devices cannot effectively buffer the patient's strength is solved, and more effective increase in exercise pressure and improvement in rehabilitation effect is achieved.
Patent Information
- Application Number
- CN202510466222.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2025-06-06
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional orthopedic rehabilitation exercise devices cannot effectively buffer the strength exerted by the patient during the exercise, causing the patient's leg joints and muscles to bear excessive impact, increasing discomfort and affecting the recovery process.
An orthopedic rehabilitation and exercise device with adjustable angles is designed, using a large gear meshed with a foot wheel, and a variety of damping springs with different elastic coefficients are installed inside the gear. The roller rolls on the surface of the elastic ring, achieving a cyclic force from heavy to light, and then from light to heavy, enhancing the exercise pressure.
Through this device, patients can feel the circulating force from heavy to light, and then from light to heavy when exercising, effectively increasing the pressure of exercise, improving the exercise effect, and helping to restore leg muscle strength and joint mobility. At the same time, the design of the device also provides a transition from low-intensity to high-intensity exercise, reducing the risk of discomfort or damage.
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Figure CN120094168A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of orthopedic rehabilitation training, and in particular to an orthopedic rehabilitation training device with adjustable angle. Background Art
[0002] In the field of orthopedic medicine, rehabilitation exercises for patients with leg injuries or post-surgery are an important part of restoring limb function and promoting recovery of body functions. Traditional rehabilitation exercise devices are relatively simple in structure and often only provide simple rotating or moving parts. Patients lack effective buffering protection measures during exercise. When patients perform rehabilitation exercises, especially leg strength training, the force exerted by their feet on the exercise device is relatively large, and the device cannot effectively buffer this force, which can easily cause the patient's leg joints and muscles to bear excessive impact force, increase the patient's discomfort, and even affect the rehabilitation process. Summary of the invention
[0003] The purpose of the present invention is to provide an orthopedic rehabilitation exercise device with adjustable angle to solve the problem proposed in the above-mentioned background technology that when performing leg strength training, the force exerted by the feet on the exercise device is relatively large, and the device cannot effectively buffer this force, which easily causes the patient's leg joints and muscles to bear excessive impact force, increases the patient's discomfort, and even affects the rehabilitation process.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an angle-adjustable orthopedic rehabilitation exercise device, comprising a base plate, a mounting plate is arranged at the top of the base plate, a pressure-relieving mechanism with a large gear is arranged at the top of the mounting plate, an exercise mechanism with a pedal wheel is arranged at the top of the mounting plate, the pedal wheel is rotatably mounted on the top of the mounting plate, a protective mechanism with a foot pedal is arranged on the surface of the pedal wheel, a support frame is fixedly mounted on the top of the mounting plate, the large gear used for pressurized auxiliary exercise is rotatably mounted on the top of the support frame, and the large gear is meshed with the tooth grooves on the surface of the pedal wheel, a cavity is opened on the surface of the large gear, an elastic ring is arranged inside the cavity, damping springs with multiple different elastic coefficients for buffering pressure are installed between the elastic ring and the inner wall of the large gear, a roller is rotatably mounted on the surface of the support frame, and the roller is arranged between the elastic ring and the large gear.
[0005] As a preferred technical solution of the present invention, the outer surface of the large gear is provided with a wind resistance component with an impeller, and the wind resistance component includes an impeller rotatably mounted on the outer surface of the large gear for increasing wind resistance, and the impeller has a combination of multiple arc-shaped blades.
[0006] As a preferred technical solution of the present invention, a baffle is fixedly mounted on the outer surface of the impeller away from the large gear, and a surface of the baffle close to the impeller is provided with a plurality of exhaust holes for balancing the air pressure.
[0007] As a preferred technical solution of the present invention, a symmetrically installed guide rotating rod is rotatably installed on the top of the base plate, and an arc plate for guiding the wind direction of the impeller is fixedly installed on the surface of the guide rotating rod close to the impeller.
[0008] As a preferred technical solution of the present invention, a handrail is fixedly installed on the top of the base plate, and a handrail for auxiliary support is fixedly installed on the top of the handrail.
[0009] As a preferred technical solution of the present invention, an auxiliary mechanism with a first gear is provided at the top of the support frame, a fixed block is fixedly installed at the top of the support frame, the first gear is rotatably installed inside the fixed block, a rotating drum and a rotating wheel for manually adjusting the speed of the pedal wheel are rotatably installed on the handrail, a transmission belt for driving their rotation is transmitted and installed between the first gear, the rotating drum and the rotating wheel, a protective plate is fixedly installed on the surface of the handrail close to the transmission belt, and the first gear is meshed with the large gear.
[0010] As a preferred technical solution of the present invention, a lubrication mechanism with oil-absorbing cotton is arranged between the pedal wheel and the large gear, a fixing plate is fixedly installed on the top of the mounting plate, an arc block filled with lubricating oil is arranged between the pedal wheel and the large gear, the oil-absorbing cotton for lubricating the tooth grooves on the surface of the pedal wheel and the large gear is installed inside the arc block, the fixing plate and the arc block are fixedly connected, and the two sides of the oil-absorbing cotton slide on the surface of the pedal wheel and the large gear respectively.
[0011] As a preferred technical solution of the present invention, a bearing is clamped inside the pedal wheel through meshing teeth, the inner side of the bearing is engaged with the rotating shaft of the pedal through a damping member, a pin hole is provided on the surface of the pedal wheel close to the bearing, and a pin is provided inside the pin hole for limiting the rotation of the bearing.
[0012] As a preferred technical solution of the present invention, a protective mechanism with a strap is provided on the surface of the foot pedal, and the strap for stabilizing the ankle is arranged on the top of the foot pedal, and the tightness of the strap is adjusted by a limiting plug rod.
[0013] As a preferred technical solution of the present invention, a lifting mechanism is fixedly installed on the top of the base plate, a seat is rotatably installed on the top of the lifting mechanism, and a telescopic member for adjusting the seat angle is rotatably provided between one side of the seat and the base plate.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. The present invention provides a large gear meshing with the pedal wheel, and a plurality of damping springs with different elastic coefficients are installed in the inner cavity of the large gear. When the patient steps on the pedal to rotate the pedal wheel, the large gear is driven to rotate, and then the roller rolls on the surface of the elastic ring. The damping springs with different elastic coefficients make the patient's force present a cycle from heavy to light and then from light to heavy, thereby indirectly increasing the exercise pressure and achieving a better exercise effect for the patient. At the same time, as the rotation speed of the pedal wheel increases, the resistance of the damping spring continues to increase, further enhancing the patient's exercise effect and contributing to the gradual recovery of the patient's leg muscle strength and joint mobility.
[0016] 2. The present invention provides an auxiliary mechanism with a first gear at the top of the support frame, so that the patient can manually rotate the rotating wheel, and the rotating wheel drives the large gear to rotate with the help of the first gear, and the large gear then drives the pedal wheel to rotate. This design of manually cooperating to assist the leg exercise intensity provides patients with a transition from low-intensity to high-intensity exercise, so that patients have a buffer process when starting intensity exercise, effectively improving patients' adaptability to rehabilitation exercise and reducing the risk of discomfort or injury caused by sudden high-intensity exercise.
[0017] 3. The present invention provides a wind resistance component with an impeller. When the large gear rotates, the impeller is driven to rotate. On the one hand, the rotation of the impeller increases the transmission damping in a timely manner. The faster the pedal rotates, the stronger the damping, which enriches the difficulty adjustment method of the exercise and further improves the exercise effect. On the other hand, the wind force generated by the rotation of the impeller can drive the thermal stress around the pedal, reduce the stuffiness caused by physical activities during the patient's exercise, make the patient more comfortable during exercise, and help improve the patient's willingness and enthusiasm to persist in exercise.
[0018] 4. The present invention arranges oil-absorbing cotton between the pedal wheel and the large gear, and the two sides of the oil-absorbing cotton slide on the surface of the pedal wheel and the large gear respectively. This design ensures that the tooth grooves on the surface of the pedal wheel and the large gear always maintain a good lubrication state, reduces the friction and wear between the gears, reduces the noise during the operation of the device, effectively prolongs the service life of the device, and also ensures the stability and reliability of the operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0020] Figure 2 It is a side view structural schematic diagram of the present invention;
[0021] Figure 3 It is a schematic diagram of the structure of the runner of the present invention;
[0022] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the runner of the present invention;
[0023] Figure 5 It is a schematic diagram of the structure of the large gear of the present invention;
[0024] Figure 6 It is a schematic diagram of the internal structure of the large gear of the present invention;
[0025] Figure 7 It is a structural schematic diagram of the pressure relief mechanism of the present invention;
[0026] Figure 8 It is a structural schematic diagram of the lubrication mechanism of the present invention.
[0027] In the figure: 1, bottom plate; 2, lifting mechanism; 3, telescopic member; 4, seat; 5, exercise mechanism; 51, pedal wheel; 52, meshing teeth; 53, bearing; 54, pin hole; 55, damping member; 6, protection mechanism; 61, pedal; 62, strap; 63, limit rod; 7, pressure relief mechanism; 71, support frame; 72, large gear; 73, damping spring; 74, elastic ring; 75, cavity; 76, Roller; 77, wind resistance assembly; 771, impeller; 772, baffle; 773, exhaust hole; 774, arc plate; 775, guide rod; 8, auxiliary mechanism; 81, first gear; 82, fixed block; 83, transmission belt; 84, drum; 85, protective plate; 86, wheel; 9, lubrication mechanism; 91, arc block; 92, oil-absorbing cotton; 93, fixed plate; 10, hand support; 11, mounting plate. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] See also Figure 1-8 The present invention provides an angle-adjustable orthopedic rehabilitation exercise device, including a base plate 1, a mounting plate 11 is arranged at the top of the base plate 1, a pressure relief mechanism 7 with a large gear 72 is arranged at the top of the mounting plate 11, an exercise mechanism 5 with a pedal wheel 51 is arranged at the top of the mounting plate 11, the pedal wheel 51 is rotatably mounted on the top of the mounting plate 11, and a protective mechanism 6 with a foot pedal 61 is arranged on the surface of the pedal wheel 51.
[0030] When some patients with leg problems need to perform rehabilitation exercises, the patients step on the two pedals 61 to rotate on both sides of the pedal wheel 51, thereby driving the pedal wheel 51 to rotate, thereby achieving the effect of exercising the leg muscles.
[0031] In the technical solution of the embodiment of the present application, a support frame 71 is fixedly installed on the top of the mounting plate 11, and a large gear 72 for boosting assisted exercise is rotatably installed on the top of the support frame 71, and the large gear 72 is meshed with the tooth grooves on the surface of the pedal wheel 51. A cavity 75 is opened on the surface of the large gear 72, and an elastic ring 74 is arranged inside the cavity 75. Damping springs 73 with various elastic coefficients for buffering pressure are installed between the elastic ring 74 and the inner wall of the large gear 72. A roller 76 is rotatably installed on the surface of the support frame 71, and the roller 76 is arranged between the elastic ring 74 and the large gear 72.
[0032] Among them, by setting a large gear 72 meshing with the pedal wheel 51, a plurality of damping springs 73 with different elastic coefficients are installed between the elastic ring 74 in the internal cavity 75 of the large gear 72 and the inner wall of the large gear 72. When the patient steps on the pedal 61 to rotate the pedal wheel 51, the large gear 72 will be driven to rotate, and the large gear 72 will drive the roller 76 to rotate in the internal cavity 75 of the large gear 72, so that the roller 76 rolls on the surface of the elastic ring 74. The elastic ring 74 is continuously changed by the damping spring 73. The damping spring 73 with different elastic coefficients makes the patient's force present a cycle from heavy to light and then from light to heavy, so as to indirectly increase the exercise pressure and make the patient's exercise effect better. At the same time, as the rotation speed of the pedal wheel 51 increases, the resistance of the damping spring 73 increases continuously, further enhancing the patient's exercise effect, and helping the patient's leg muscle strength and joint mobility to gradually recover.
[0033] Among them, the coefficient of the damping spring 73 will be designed according to the different stages of rehabilitation exercise and the specific conditions of the patient. In the early stage of rehabilitation, a damping spring 73 with a smaller elastic coefficient will be selected to reduce the difficulty of exercise and help patients gradually adapt; as the rehabilitation process progresses, the damping spring 73 with a larger elastic coefficient will be gradually increased to increase the exercise intensity and enhance the exercise effect.
[0034] In some embodiments, a wind resistance assembly 77 with an impeller 771 is disposed on the outer surface of the large gear 72. The wind resistance assembly 77 includes an impeller 771 rotatably mounted on the outer surface of the large gear 72 for increasing wind resistance. The impeller 771 has a plurality of arc-shaped blade combinations.
[0035] Among them, an impeller 771 composed of multiple arc-shaped blades is rotatably installed on the outer surface of the large gear 72, so that when the large gear 72 rotates, the impeller 771 is driven to rotate. The rotation of the arc-shaped blades in the impeller 771 will generate wind resistance, thereby increasing the transmission damping in time. The faster the pedal 61 rotates, the stronger the damping, which enriches the exercise difficulty adjustment method and improves the exercise effect.
[0036] In some embodiments, a baffle 772 is fixedly mounted on the outer surface of the impeller 771 away from the large gear 72 , and a plurality of exhaust holes 773 for balancing the air pressure are opened on the surface of the baffle 772 close to the impeller 771 .
[0037] Among them, when the impeller 771 rotates, part of the airflow generated by the rotation of the impeller 771 can be discharged through the multiple exhaust holes 773 on the surface of the baffle 772, so as to balance the air pressure, make the impeller 771 rotate more smoothly, ensure the stable operation of the device, and reduce equipment failure or abnormal vibration that may be caused by unbalanced air pressure.
[0038] In some embodiments, a symmetrically mounted guide rod 775 is rotatably mounted on the top of the base plate 1 , and an arc plate 774 for guiding the wind direction of the impeller 771 is fixedly mounted on the surface of the guide rod 775 close to the impeller 771 .
[0039] Among them, the angle of the arc plate 774 can be adjusted through the guide rotating rod 775, and the wind direction generated by the rotation of the impeller 771 can be guided through the arc plate 774, so that the airflow generated by the impeller 771 can be more concentrated or flow in a specific direction, thereby optimizing the wind resistance effect. At the same time, the airflow may be guided to blow toward specific parts of the patient's body, bringing a more comfortable exercise experience.
[0040] In some embodiments, a handrail 10 is fixedly mounted on the top of the base plate 1 , and a handrail for auxiliary support is fixedly mounted on the top of the handrail 10 .
[0041] The handrail 10 provides auxiliary support for the patient during exercise, thereby increasing the patient's stability and safety during exercise and reducing accidental risks such as falls due to body imbalance.
[0042] In some embodiments, an auxiliary mechanism 8 with a first gear 81 is provided at the top of the support frame 71, a fixed block 82 is fixedly installed at the top of the support frame 71, the first gear 81 is rotatably installed inside the fixed block 82, a rotating drum 84 and a rotating wheel 86 for manually adjusting the rotation speed of the pedal wheel 51 are rotatably installed on the handrail 10, a transmission belt 83 for driving their rotation is installed between the first gear 81, the rotating drum 84 and the rotating wheel 86, a protective plate 85 is fixedly installed on the surface of the handrail 10 close to the transmission belt 83, and the first gear 81 is meshed with the large gear 72.
[0043] Among them, in the early stage of the patient's leg exercise, the patient can manually rotate the wheel 86, and the wheel 86 drives the first gear 81 to rotate through the transmission belt 83, and the first gear 81 drives the large gear 72 to rotate, and the large gear 72 drives the pedal wheel 51 to rotate. In this way, the intensity of leg exercise is assisted by manual cooperation, the patient's initial adaptability is improved, the patient has a buffer when performing intensity exercise, and the rehabilitation adaptability is enhanced.
[0044] In some embodiments, a lubrication mechanism 9 with oil-absorbing cotton 92 is provided between the pedal wheel 51 and the large gear 72, a fixing plate 93 is fixedly installed on the top of the mounting plate 11, an arc block 91 filled with lubricating oil is provided between the pedal wheel 51 and the large gear 72, and the oil-absorbing cotton 92 for lubricating the tooth grooves on the surface of the pedal wheel 51 and the large gear 72 is installed inside the arc block 91, the fixing plate 93 and the arc block 91 are fixedly connected, and the two sides of the oil-absorbing cotton 92 slide on the surface of the pedal wheel 51 and the large gear 72 respectively.
[0045] Among them, since the two sides of the oil-absorbing cotton 92 slide on the surface of the pedal wheel 51 and the large gear 72 respectively, and the oil-absorbing cotton 92 has softness and adsorption properties, the oil-absorbing cotton 92 can be used after absorbing lubricating oil, which can ensure that the tooth grooves on the surface of the pedal wheel 51 and the large gear 72 always maintain a good lubrication state, reduce friction and wear between gears, reduce the operating noise of the device, extend the service life of the device, and ensure the smooth operation and reliability of the device.
[0046] In some embodiments, a bearing 53 is clamped inside the pedal wheel 51 through meshing teeth 52, and the inner side of the bearing 53 is engaged with the rotating shaft of the pedal 61 through a damping member 55. A pin hole 54 is provided on the surface of the pedal wheel 51 close to the bearing 53, and a pin is provided inside the pin hole 54 for limiting the rotation of the bearing 53.
[0047] Among them, the bearing 53 can be restricted by the pin to prevent it from rotating at will. After the patient adapts to the pressure and exercises, the pin can be removed to allow the bearing 53 to rotate. At this time, the patient does not need to use the large gear 72 for pressurization, and can directly rotate the outer end of the pedal wheel 51 through the foot pedal 61. At this time, the rotation will continue to be smooth until the patient recovers.
[0048] In some embodiments, a protective mechanism 6 with a strap 62 is provided on the surface of the foot pedal 61 . The strap 62 for stabilizing the ankle is provided at the top of the foot pedal 61 , and the tightness of the strap 62 is adjusted by a limiting rod 63 .
[0049] The ankle is stabilized by the strap 62 to prevent the foot from sliding or spraining during exercise, thereby ensuring the safety of the patient. The limiting rod 63 allows the patient to adjust the tightness of the strap 62 according to his or her own needs, thereby improving the comfort of use.
[0050] In some embodiments, a lifting mechanism 2 is fixedly installed on the top of the base plate 1, a seat 4 is rotatably installed on the top of the lifting mechanism 2, and a telescopic member 3 for adjusting the angle of the seat 4 is rotatably provided between one side of the seat 4 and the base plate 1.
[0051] Among them, the patient can use the lifting mechanism 2 and the telescopic part 3 to adjust the position and angle of the seat 4 according to his own needs, so as to get proper rest and support during the exercise, improve the comfort of the patient's exercise, and enable the patient to perform rehabilitation exercises for a longer time and more efficiently.
[0052] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.
Claims
1. An angle-adjustable orthopedic rehabilitation exercise device, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a mounting plate (11), the top of the mounting plate (11) is provided with a pressure relief mechanism (7) with a large gear (72), the top of the mounting plate (11) is provided with an exercise mechanism (5) with a pedal wheel (51), the pedal wheel (51) is rotatably mounted on the top of the mounting plate (11), and the surface of the pedal wheel (51) is provided with a protective mechanism (6) with a foot pedal (61); A support frame (71) is fixedly mounted on the top of the mounting plate (11); a large gear (72) for boosting auxiliary exercise is rotatably mounted on the top of the support frame (71), and the large gear (72) is meshed with the tooth grooves on the surface of the pedal wheel (51); a cavity (75) is provided on the surface of the large gear (72); an elastic ring (74) is arranged inside the cavity (75); damping springs (73) with different elastic coefficients for buffering pressure are installed between the elastic ring (74) and the inner wall of the large gear (72); a roller (76) is rotatably mounted on the surface of the support frame (71); the roller (76) is arranged between the elastic ring (74) and the large gear (72).
2. The angle-adjustable orthopedic rehabilitation exercise device according to claim 1, characterized in that: The outer surface of the large gear (72) is provided with a wind resistance component (77) with an impeller (771), and the wind resistance component (77) comprises an impeller (771) rotatably mounted on the outer surface of the large gear (72) for increasing wind resistance, and the impeller (771) comprises a plurality of arc-shaped blade assemblies.
3. The angle-adjustable orthopedic rehabilitation exercise device according to claim 2, characterized in that: A baffle (772) is fixedly mounted on the outer surface of the impeller (771) away from the large gear (72), and a plurality of exhaust holes (773) for balancing air pressure are formed on the surface of the baffle (772) close to the impeller (771).
4. The angle-adjustable orthopedic rehabilitation exercise device according to claim 2, characterized in that: A symmetrically mounted guide rotating rod (775) is rotatably mounted on the top end of the bottom plate (1), and an arc-shaped plate (774) for guiding the wind direction of the impeller (771) is fixedly mounted on the surface of the guide rotating rod (775) close to the impeller (771).
5. The angle-adjustable orthopedic rehabilitation exercise device according to claim 1, characterized in that: A handrail (10) is fixedly mounted on the top of the base plate (1), and a handrail for auxiliary support is fixedly mounted on the top of the handrail (10).
6. The angle-adjustable orthopedic rehabilitation exercise device according to claim 5, characterized in that: The top of the support frame (71) is provided with an auxiliary mechanism (8) having a first gear (81), the top of the support frame (71) is fixedly mounted with a fixed block (82), the first gear (81) is rotatably mounted inside the fixed block (82), a rotating drum (84) and a rotating wheel (86) for manually adjusting the rotation speed of the pedal wheel (51) are rotatably mounted on the hand support frame (10), a transmission belt (83) for driving the rotation thereof is installed between the first gear (81), the rotating drum (84) and the rotating wheel (86), a protective plate (85) is fixedly mounted on the surface of the hand support frame (10) close to the transmission belt (83), and the first gear (81) is meshed with the large gear (72).
7. The angle-adjustable orthopedic rehabilitation exercise device according to claim 1, characterized in that: A lubricating mechanism (9) with oil-absorbing cotton (92) is arranged between the pedal wheel (51) and the large gear (72); a fixing plate (93) is fixedly installed on the top of the mounting plate (11); an arc block (91) filled with lubricating oil is arranged between the pedal wheel (51) and the large gear (72); the oil-absorbing cotton (92) for lubricating the tooth grooves on the surfaces of the pedal wheel (51) and the large gear (72) is installed inside the arc block (91); the fixing plate (93) and the arc block (91) are fixedly connected, and two sides of the oil-absorbing cotton (92) slide on the surfaces of the pedal wheel (51) and the large gear (72) respectively.
8. The angle-adjustable orthopedic rehabilitation exercise device according to claim 1, characterized in that: A bearing (53) is clamped inside the pedal wheel (51) via meshing teeth (52); the inner side of the bearing (53) is engaged with the rotating shaft of the pedal (61) via a damping member (55); a pin hole (54) is provided on the surface of the pedal wheel (51) close to the bearing (53); a clamping pin for limiting the rotation of the bearing (53) is provided inside the pin hole (54).
9. The angle-adjustable orthopedic rehabilitation exercise device according to claim 1, characterized in that: The surface of the foot pedal (61) is provided with a protective mechanism (6) with a strap (62). The strap (62) for stabilizing the ankle is arranged at the top of the foot pedal (61), and the tightness of the strap (62) is adjusted by a limiting plug rod (63).
10. The angle-adjustable orthopedic rehabilitation exercise device according to claim 1, characterized in that: A lifting mechanism (2) is fixedly mounted on the top of the base plate (1), a seat (4) is rotatably mounted on the top of the lifting mechanism (2), and a telescopic member (3) for adjusting the angle of the seat (4) is rotatably arranged between one side of the seat (4) and the base plate (1).