Rheumatoid arthritis rehabilitation exercise device

Abstract

The invention discloses a rheumatoid arthritis rehabilitation exercise device, and particularly relates to the technical field of rheumatoid arthritis rehabilitation exercise. The two L-shaped connecting arms are arranged to drive the pedal frame to rotate slowly along the circumference, knee joints and ankle joints can be made to stretch continuously, the swing mechanism is arranged between the pedal frame and the pedal, the pedal frame can drive the feet of a patient to swing left and right, the ankle joints are further exercised, and the exercise effect is improved. The distance adjusting assembly is arranged on the rotating handle, the left-right swing range of the ankle joint can be adjusted, and the exercise degree can be adjusted according to needs; limiting columns are controlled to drive a holding rod to ascend and descend, the holding rod can drive the two hands and the two arms of a patient to bend and stretch continuously, wrist joints and elbow joints can stretch continuously, a twisting mechanism is arranged on the holding rod, twisting exercise can be further conducted on the wrist joints, and the training effect is good. Therefore, rehabilitation exercise can be effectively performed on the joint tissue of the patient.

Description

Technical Field

[0001] The invention relates to the technical field of rheumatoid arthritis rehabilitation exercise, and in particular to a rheumatoid arthritis rehabilitation exercise device. Background Art

[0002] Rheumatoid arthritis is an autoimmune disease with synovitis as its pathological basis and may eventually lead to joint deformity. Its etiology is still under exploration, but studies have shown that it may be closely related to factors such as autoimmunity, genetics, and microbial infection. The main clinical manifestations of patients are joint lesions. The initial main symptoms are morning stiffness, swelling, and pain in the joints. As the disease progresses, joint deformities may develop, affecting the patient's normal joint function. Some patients may also show systemic symptoms such as fever, fatigue, and weakness.

[0003] At present, in the process of treating rheumatoid arthritis patients, in addition to drug treatment, rehabilitation exercises are also required. Exercise can effectively slow down the progression of the disease and improve the quality of life of patients. However, existing rehabilitation exercises are mostly simple leg-lifting and hand-raising exercises supervised by medical staff or performed by patients independently. It is difficult to effectively train the joint tissues, resulting in poor rehabilitation recovery effects, and it is difficult to effectively meet the treatment needs of rheumatoid arthritis. Summary of the invention

[0004] The purpose of the present invention is to provide a rehabilitation exercise device for rheumatoid arthritis. By arranging two groups of L-shaped connecting arms to drive the pedal frame to rotate slowly along the circumference, the knee joint and the ankle joint can be continuously stretched. A driving shaft and a swing mechanism are arranged between the pedal frame and the pedal, so that the pedal frame can drive the patient's feet to swing left and right, so as to further exercise the ankle joint, and a distance adjustment component is arranged on the rotating handle to adjust the left and right swing range of the ankle joint, so as to adjust the exercise degree according to needs; by controlling the limit column to drive the grip bar to rise and fall, the grip bar can drive the patient's hands and arms to bend and stretch continuously, so that the wrist joint and elbow joint can be continuously stretched, and a twisting mechanism is arranged on the grip bar, so as to further twist the wrist joint, and then effectively carry out rehabilitation exercises for the patient's joint tissues. The use is flexible and convenient, and the rehabilitation exercise effect of rheumatoid arthritis is greatly improved, so as to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a rheumatoid arthritis rehabilitation exercise device, comprising:

[0006] A base, wherein a movable seat is provided at one end of the top of the base;

[0007] A fixed cover, the fixed cover is arranged on the top of the base near the side of the seat, and the middle of the inner side of the fixed cover is rotatably connected with a fixed shaft through a bearing, and both ends of the fixed shaft extending to the outside of the fixed cover are connected with L-shaped connecting arms, and one end of the two L-shaped connecting arms relative to the fixed shaft is rotatably connected with a footrest through a rotating shaft;

[0008] A fixing frame, the fixing frame is arranged on the top of the base and between the fixing cover and the seat, and a reduction drive mechanism is provided on the fixing frame, the reduction drive mechanism is used to drive the fixing shaft to rotate;

[0009] One end of the inner side of the pedal frame is rotatably connected to a driving shaft through a bearing, the top end of the driving shaft passes through the pedal frame and is provided with a pedal, a swing mechanism is provided in the pedal frame, and the swing mechanism is used to drive the pedal to swing back and forth;

[0010] Two baffle frames are symmetrically arranged on the top of the base on both sides of the fixed cover, and a limit rod is provided at the top of the two baffle frames, a liftable limit column is installed at the top of the limit rod, a transmission component is provided between the two limit columns and the deceleration drive mechanism, and a support plate is fixed to the top of the two limit columns, a grip rod is rotatably connected between the two support plates through a rotating shaft, and a torsion mechanism is provided at one end of the grip rod.

[0011] Preferably, a slide is provided on the top side of the base near the bottom of the seat, and a first motor is fixedly connected to one end of the base. A threaded rod is rotatably connected to the inside of the slide through a bearing. The output end of the first motor extends into the slide and is connected to the threaded rod. A slider is fixed to the bottom end of the seat, and the slider is screwed onto the outside of the threaded rod through a thread.

[0012] Preferably, the reduction drive mechanism includes a second motor fixedly connected to the outside of the fixed frame, the output end of the second motor extends outside the fixed frame and is provided with a driving gear, the middle end of the fixed shaft is located in the fixed cover and a driven gear is fixed thereon, the inner side of the fixed frame is located between the driving gear and the driven gear and is rotatably connected thereto with a transmission gear via a rotating shaft, the two ends of the transmission gear are respectively meshed with the driving gear and the driven gear, and the diameters of the driven gear, the transmission gear and the driving gear decrease in sequence from large to small.

[0013] Preferably, the rocking mechanism includes a driven shaft rotatably connected to the pedal frame near the driving shaft side through a bearing, the bottom ends of the driven shaft and the driving shaft are fixed with first sector gears meshing with each other, and a guide frame is fixed to the top end of the driven shaft, a third motor is fixed to the bottom of the pedal frame relative to one end of the driving shaft, the output end of the third motor is connected to a connecting shaft, the top end of the connecting shaft extends into the pedal frame and is fixed with a turning handle, a movable guide column is provided on the top side of the turning handle, the top end of the guide column is slidably fitted in the guide frame, a distance adjustment component is provided on the turning handle, and the distance adjustment component is used to adjust the distance between the connecting shaft and the guide column.

[0014] Preferably, the distance adjustment component includes a sliding cavity opened on the top side of the rotating handle, the interior of the sliding cavity is rotatably connected to a screw rod through a bearing, a fourth motor is fixed to one end of the rotating handle, the output end of the fourth motor is connected to the screw rod, and the interior of the sliding cavity is slidably connected to a movable block, the movable block is screwed to the outside of the screw rod through a threaded engagement, and the bottom end of the guide column is fixedly connected to the movable block.

[0015] Preferably, an anti-slip pad is provided on the top side of the pedal, and a strap is connected to the top end of the pedal.

[0016] Preferably, the transmission assembly includes a second synchronous wheel rotatably connected to the inner side of the baffle frame near one end of the limit rod, and the other end of the inner side of the baffle frame is rotatably connected to the first synchronous wheel, a synchronous belt is sleeved between the first synchronous wheel and the second synchronous wheel, the output end of the second synchronous wheel is connected to the first connecting handle, the end of the first connecting handle is rotatably connected to the second connecting handle, the top of the second connecting handle is movably connected to the limit column through a rotating shaft, and a transmission rod is connected between the first synchronous wheel and the transmission gear.

[0017] Preferably, the torsion mechanism includes a movable frame slidably connected to the inner side of one of the support plates, and a fifth motor is fixed to the outer side of the support plate, the output end of the fifth motor extends into the movable frame and is connected to the second sector gear, inner tooth plates meshing with the second sector gear are fixed on both sides of the interior of the movable frame, and an outer tooth plate is fixed on the top side of the movable frame near the bottom of the grip rod, and one end of the grip rod is connected to a driven gear meshing with the outer tooth plate.

[0018] Preferably, T-shaped clamping blocks are symmetrically fixed at both ends of the inner side of the movable frame, and a T-shaped clamping groove matching the T-shaped clamping block is opened on the inner side of the support plate.

[0019] Preferably, the outer wall of the grip is provided with a silicone sleeve.

[0020] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0021] By arranging a fixed cover, a fixed shaft, an L-shaped connecting arm, a footrest and a pedal on the base, and under the action of a deceleration drive mechanism, the two sets of L-shaped connecting arms can drive the footrest to rotate slowly along the circumference, and the patient's feet can step on the pedals of the two footrests respectively, so that the pedals can drive the patient's legs and feet to repeatedly bend and stretch back and forth, thereby allowing the knee joint and ankle joint to continuously perform stretching activities;

[0022] By arranging a driving shaft and a swing mechanism between the footrest frame and the pedal, the swing mechanism is composed of a connecting shaft, a rotating handle, a guide column, a guide frame and a driven shaft, etc., the connecting shaft can drive the guide column to slide back and forth in the guide frame through the rotating handle, and the guide frame can drive the driving shaft to rotate back and forth through the driven shaft, so that the driving shaft can drive the pedal to swing left and right above the footrest frame, so that the pedal can drive the patient's foot to swing left and right, so as to further exercise the ankle joint, thereby greatly enhancing the exercise effect at the joint;

[0023] By arranging a distance adjustment component on the turning handle, the distance adjustment component can adjust the distance between the connecting shaft and the guide column. As the distance increases, the left and right swing range of the pedal driven by the driving shaft becomes larger, and vice versa. Then, the left and right swing range of the ankle joint can be adjusted, so as to adjust the exercise degree according to the needs, which greatly improves the use effect of the device.

[0024] By setting a limit rod, a limit column, a grip rod and a transmission assembly, as the reduction drive mechanism drives the L-shaped connecting arm to rotate, the transmission assembly can pull the limit column to continuously move up and down along the limit rod, and the limit column can drive the grip rod to move up and down through the support plate. With the movement of the grip rod, the grip rod can drive the patient's hands and arms to bend and stretch continuously, so that the wrist joint and elbow joint can continuously stretch;

[0025] By arranging a twisting mechanism at one end of the grip, the twisting mechanism is composed of a movable frame, an inner tooth plate, an outer tooth plate and a driven gear, etc., so that the movable frame moving back and forth can drive the driven gear on the grip to deflect back and forth, and when the patient holds the grip tightly with both hands, the wrist joint can be further twisted.

[0026] In summary, with the cooperation of the above structures, effective rehabilitation exercises can be performed on the patient's joint tissues. It is flexible and convenient to use, which greatly improves the rehabilitation exercise effect of rheumatoid arthritis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0029] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention when the seat is removed;

[0031] Figure 4 This is one of the structural schematic diagrams of the connection between the fixing frame and the fixing cover of the present invention;

[0032] Figure 5 This is a second structural schematic diagram of the connection between the fixing frame and the fixing cover of the present invention;

[0033] Figure 6 It is a schematic diagram of the connection structure between the L-shaped connecting arm and the pedal frame of the present invention;

[0034] Figure 7 A longitudinal cross-sectional view of the footrest and pedal of the present invention;

[0035] Figure 8 It is a schematic diagram of the internal structure of the pedal frame of the present invention;

[0036] Fig. 9 It is a three-dimensional structural schematic diagram of the pedal frame of the present invention;

[0037] Fig.10 It is a schematic diagram of the internal structure of the turning handle of the present invention;

[0038] Fig.11 It is a structural schematic diagram of the connection between the baffle frame and the grip rod of the present invention;

[0039] Fig.12 It is a structural schematic diagram of the connection between the first synchronous wheel and the second synchronous wheel of the present invention;

[0040] Fig.13 It is a schematic diagram of the connection structure between the retaining frame and the limiting column of the present invention;

[0041] Fig.14 It is a schematic diagram of the structure of the movable frame and the handle connected to each other in the present invention;

[0042] Fig.15 is a longitudinal cross-sectional view of the support plate of the present invention;

[0043] Fig.16 It is a schematic diagram of the three-dimensional structure of the movable frame of the present invention.

[0044] Description of reference numerals:

[0045] 1. Base; 2. Seat; 3. Slide; 4. Slider; 5. Threaded rod; 6. First motor; 7. Fixed frame; 8. Fixed cover; 9. Second motor; 10. Driving gear; 11. Transmission gear; 12. Fixed shaft; 13. Driven gear plate; 14. L-shaped connecting arm; 15. Pedal frame; 16. Driving shaft; 17. Pedal; 18. First sector gear; 19. Driven shaft; 20. Guide frame; 21. Guide column; 22. Turning handle; 23. Connecting shaft; 24. Sliding cavity; 25. Screw rod; 26. Active Moving block; 27. The third motor; 28. The fourth motor; 29. ​​The blocking frame; 30. The transmission rod; 31. The limiting rod; 32. The limiting column; 33. The support plate; 34. The gripping rod; 35. The silicone sleeve; 36. The first synchronous wheel; 37. The second synchronous wheel; 38. The synchronous belt; 39. The first connecting handle; 40. The second connecting handle; 41. The movable frame; 42. The inner tooth plate; 43. The fifth motor; 44. The second sector gear; 45. The outer tooth plate; 46. The driven gear; 47. The T-shaped block; 48. The T-shaped slot. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0047] The present invention provides Figure 1-Figure 16 A rheumatoid arthritis rehabilitation exercise device is shown, comprising:

[0048] A base 1, a movable seat 2 is provided at one end of the top of the base 1;

[0049] A slide 3 is provided on the top side of the base 1 near the bottom of the seat 2, and a first motor 6 is fixedly connected to one end of the base 1. A threaded rod 5 is rotatably connected to the inside of the slide 3 through a bearing. The output end of the first motor 6 extends into the slide 3 and is connected to the threaded rod 5. A slider 4 is fixed to the bottom end of the seat 2, and the slider 4 is screwed on the outside of the threaded rod 5 through a thread.

[0050] When in use, the patient can first sit on the seat 2, and the first motor 6 can be used to drive the threaded rod 5 to rotate, so that the threaded rod 5 drives the slider 4 to slide in the slide 3, so that the slider 4 can drive the seat 2 to move on the base 1, and then the seat 2 can drive the patient to move to the grip 34 and the footrest 15, so that the position can be adjusted according to needs.

[0051] A fixed cover 8 is provided on the top of the base 1 near the side of the seat 2, and a fixed shaft 12 is rotatably connected to the middle of the inner side of the fixed cover 8 through a bearing, and both ends of the fixed shaft 12 extending to the outside of the fixed cover 8 are connected to L-shaped connecting arms 14, and one end of the two L-shaped connecting arms 14 relative to the fixed shaft 12 is rotatably connected to a footrest 15 through a rotating shaft;

[0052] A fixing frame 7, the fixing frame 7 is arranged at the top of the base 1 and between the fixing cover 8 and the seat 2, and a reduction drive mechanism is provided on the fixing frame 7, and the reduction drive mechanism is used to drive the fixing shaft 12 to rotate;

[0053] Specifically by Figure 3 , Figure 4 and Figure 5 As shown, the reduction drive mechanism includes a second motor 9 fixedly connected to the outside of the fixed frame 7, the output end of the second motor 9 extends to the outside of the fixed frame 7 and is provided with a driving gear 10, the middle end of the fixed shaft 12 is located in the fixed cover 8 and a driven gear plate 13 is fixed thereon, the inner side of the fixed frame 7 is located between the driving gear 10 and the driven gear plate 13 and is rotatably connected with a transmission gear 11 through a rotating shaft, the two ends of the transmission gear 11 are respectively meshed with the driving gear 10 and the driven gear plate 13, and the diameters of the driven gear plate 13, the transmission gear 11 and the driving gear 10 decrease in sequence from large to small.

[0054] One end of the inner side of the pedal frame 15 is rotatably connected to a drive shaft 16 through a bearing. The top end of the drive shaft 16 passes through the pedal frame 15 and is provided with a pedal 17. A swing mechanism is provided in the pedal frame 15, and the swing mechanism is used to drive the pedal 17 to swing back and forth.

[0055] The second motor 9 drives the driving gear 10 to rotate, so that the driving gear 10 drives the transmission gear 11 to rotate, and then the transmission gear 11 can drive the driven gear plate 13 to rotate, so that the driven gear plate 13 can drive the fixed shaft 12 to rotate slowly, and the fixed shaft 12 can drive the footrest 15 to make a circular motion through the L-shaped connecting arm 14. When the patient's feet step on the pedals 17 on the two footrests 15 respectively, as the L-shaped connecting arm 14 drives the footrest 15 to rotate, the patient's legs and feet can be driven to repeatedly bend and extend the knees back and forth, so that the knee joints and ankle joints can continuously perform extension activities.

[0056] Specifically by Figure 6 , Figure 7 , Figure 8 and Fig.10 As shown, the rocking mechanism includes a driven shaft 19 rotatably connected to the pedal frame 15 on one side close to the driving shaft 16 through a bearing, the bottom ends of the driven shaft 19 and the driving shaft 16 are fixed with a first sector gear 18 meshing with each other, and a guide frame 20 is fixed to the top of the driven shaft 19, a third motor 27 is fixed to the bottom of the pedal frame 15 relative to one end of the driving shaft 16, the output end of the third motor 27 is connected to a connecting shaft 23, the top end of the connecting shaft 23 extends into the pedal frame 15 and is fixed with a turning handle 22, a movable guide column 21 is provided on the top side of the turning handle 22, the top end of the guide column 21 is slidably fitted in the guide frame 20, a distance adjustment component is provided on the turning handle 22, and the distance adjustment component is used to adjust the distance between the connecting shaft 23 and the guide column 21.

[0057] The pitch adjustment component includes a sliding cavity 24 opened on the top side of the rotating handle 22, and the interior of the sliding cavity 24 is rotatably connected to a screw rod 25 through a bearing. A fourth motor 28 is fixed to one end of the rotating handle 22, and the output end of the fourth motor 28 is connected to the screw rod 25. A movable block 26 is slidably connected to the interior of the sliding cavity 24, and the movable block 26 is screwed to the outside of the screw rod 25 through a thread, and the bottom end of the guide column 21 is fixedly connected to the movable block 26.

[0058] By starting the third motor 27, the third motor 27 can drive the connecting shaft 23 to rotate, and then the connecting shaft 23 drives the rotating handle 22 to rotate, so that the rotating handle 22 drives the guide column 21 to rotate in a circle, that is, the guide column 21 can slide back and forth in the guide frame 20, and then the guide frame 20 can drive the driven shaft 19 to rotate back and forth, and the driven shaft 19 can drive the driving shaft 16 to rotate through the first sector gear 18, so that the driving shaft 16 can drive the pedal 17 to swing left and right above the pedal frame 15, that is, the pedal 17 can drive the patient's foot to swing left and right, so that the ankle joint can be further exercised, which greatly enhances the exercise effect at the joint;

[0059] In addition, by starting the fourth motor 28, the fourth motor 28 can drive the lead screw 25 to rotate, and then the lead screw 25 drives the movable block 26 to slide in the sliding cavity 24, and then the movable block 26 can drive the guide column 21 to move, so that the distance between the connecting shaft 23 and the guide column 21 can be adjusted. As the distance increases, the rotation radius of the guide column 21 with the connecting shaft 23 as the center becomes larger. The increase in the rotation radius makes the guide column 21 drive the guide frame 20 to swing left and right. The angle becomes larger, so that the driving shaft 16 drives the pedal 17 to swing left and right. The range, and then the left and right swing range of the ankle joint can be adjusted, so as to adjust the degree of exercise according to needs, which greatly improves the use effect of the device.

[0060] The top side of the pedal 17 is provided with an anti-skid pad, and the top end of the pedal 17 is connected with a strap. The anti-skid pad can be used to prevent slipping, and the foot of the patient can be firmly fixed on the pedal 17 by the strap.

[0061] Two baffle frames 29 are symmetrically arranged on the top of the base 1 on both sides of the fixed cover 8, and a limit rod 31 is provided at the top of the two baffle frames 29, and a liftable limit column 32 is installed at the top of the limit rod 31. A transmission component is provided between the two limit columns 32 and the reduction drive mechanism, and a support plate 33 is fixed to the top of the two limit columns 32. A grip rod 34 is rotatably connected between the two support plates 33 through a rotating shaft, and a torsion mechanism is provided at one end of the grip rod 34.

[0062] The outer wall of the grip 34 is provided with a silicone sleeve 35. The silicone sleeve 35 can enhance the grip feel and effectively prevent the grip from falling off.

[0063] Specifically by Fig.11 , Fig.12 and Fig.13 As shown, the transmission assembly includes a second synchronous wheel 37 rotatably connected to the inner side of the blocking frame 29 near one end of the limiting rod 31, and the other end of the inner side of the blocking frame 29 is rotatably connected to the first synchronous wheel 36, a synchronous belt 38 is sleeved between the first synchronous wheel 36 and the second synchronous wheel 37, the output end of the second synchronous wheel 37 is connected to the first connecting handle 39, the end of the first connecting handle 39 is rotatably connected to the second connecting handle 40, the top end of the second connecting handle 40 is movably connected to the limiting column 32 through a rotating shaft, and a transmission rod 30 is connected between the first synchronous wheel 36 and the transmission gear 11.

[0064] As the reduction drive mechanism drives the L-shaped connecting arm 14 to rotate, the transmission gear 11 on the reduction drive mechanism can also drive the first synchronous wheels 36 on both sides to rotate. The first synchronous wheel 36 can drive the second synchronous wheel 37 to rotate through the synchronous belt 38, so that the second synchronous wheel 37 can drive the first connecting handle 39 to rotate. As the first connecting handle 39 makes a circular motion, the first connecting handle 39 can pull the limiting column 32 to continuously rise and fall along the limiting rod 31, and the limiting column 32 can drive the gripping rod 34 to rise and fall through the supporting plate 33. The patient's hands can be tightly grasped on the gripping rod 34. As the gripping rod 34 moves, the gripping rod 34 can drive the patient's hands and arms to bend and extend continuously, so that the wrist joint and elbow joint can continuously perform extension activities.

[0065] Specifically by Fig.14 , Fig.15 and Fig.16 As shown, the torsion mechanism includes a movable frame 41 slidably connected to the inner side of one of the support plates 33, and a fifth motor 43 is fixed to the outer side of the support plate 33, the output end of the fifth motor 43 extends into the movable frame 41 and is connected to a second sector gear 44, inner teeth plates 42 that can mesh with the second sector gear 44 are fixed on both sides of the inside of the movable frame 41, and an outer teeth plate 45 is fixed to the top side of the movable frame 41 near the bottom of the handle 34, and one end of the handle 34 is connected to a driven gear 46 that meshes with the outer teeth plate 45.

[0066] T-shaped blocks 47 are symmetrically fixed to both ends of the inner side of the movable frame 41, and a T-shaped slot 48 matching the T-shaped block 47 is provided on the inner side of the support plate 33. The movable frame 41 can be supported and limited by the T-shaped block 47 and the T-shaped slot 48 to ensure that the movable frame 41 moves stably along a straight line.

[0067] By starting the fifth motor 43, the fifth motor 43 can drive the second sector gear 44 to rotate, and the second sector gear 44 can drive the inner tooth plate 42 to mesh, so that the inner tooth plate 42 drives the movable frame 41 to move, and then the second sector gear 44 can mesh with another inner tooth plate 42, which can drive the movable frame 41 to move in the opposite direction, so that the movable frame 41 can drive the outer tooth plate 45 to move back and forth, so that the outer tooth plate 45 drives the driven gear 46 to deflect back and forth, and then the driven gear 46 drives the grip bar 34 to deflect. When the patient holds the grip bar 34 with both hands, the wrist joint can be further twisted, so that the patient's joint tissue can be effectively rehabilitated. The use is flexible and convenient, which greatly improves the rehabilitation effect of rheumatoid arthritis.

[0068] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rheumatoid arthritis rehabilitation exercise device, characterized in that: include: A base (1), wherein a movable seat (2) is provided at one end of the top of the base (1); A fixed cover (8), the fixed cover (8) being arranged on the top of the base (1) near the seat (2), and a fixed shaft (12) is rotatably connected to the middle of the inner side of the fixed cover (8) via a bearing, and both ends of the fixed shaft (12) extending to the outside of the fixed cover (8) are connected to L-shaped connecting arms (14), and one end of the two L-shaped connecting arms (14) relative to the fixed shaft (12) is rotatably connected to a footrest (15) via a rotating shaft; A fixing frame (7), the fixing frame (7) being arranged at the top of the base (1) and between the fixing cover (8) and the seat (2), and a reduction drive mechanism being arranged on the fixing frame (7), the reduction drive mechanism being used for driving the fixing shaft (12) to rotate; One end of the inner side of the pedal frame (15) is rotatably connected to a driving shaft (16) through a bearing, the top end of the driving shaft (16) passes through the pedal frame (15) and is provided with a pedal (17), and a swing mechanism is provided inside the pedal frame (15), and the swing mechanism is used to drive the pedal (17) to swing back and forth; Two baffle frames (29), the two baffle frames (29) are symmetrically arranged on the top of the base (1) and on both sides of the fixed cover (8), and the top ends of the two baffle frames (29) are each provided with a limit rod (31), the top ends of the limit rods (31) are provided with a limit column (32) that can be raised and lowered, a transmission assembly is provided between the two limit columns (32) and the deceleration drive mechanism, and the top ends of the two limit columns (32) are each fixed with a support plate (33), a gripping rod (34) is rotatably connected between the two support plates (33) via a rotating shaft, and one end of the gripping rod (34) is provided with a twisting mechanism.

2. The rheumatoid arthritis rehabilitation exercise device according to claim 1, characterized in that: A slideway (3) is provided on the top side of the base (1) near the bottom of the seat (2), and a first motor (6) is fixedly connected to one end of the base (1). A threaded rod (5) is rotatably connected to the interior of the slideway (3) via a bearing. The output end of the first motor (6) extends into the slideway (3) and is connected to the threaded rod (5). A slider (4) is fixed to the bottom end of the seat (2), and the slider (4) is screwed onto the outside of the threaded rod (5) via a thread.

3. The rheumatoid arthritis rehabilitation exercise device according to claim 1, characterized in that: The reduction drive mechanism comprises a second motor (9) fixedly connected to the outside of a fixed frame (7); the output end of the second motor (9) extends outside the fixed frame (7) and is provided with a driving gear (10); the middle end of the fixed shaft (12) is located in a fixed cover (8) and is fixed with a driven gear plate (13); the inner side of the fixed frame (7) is located between the driving gear (10) and the driven gear plate (13) and is rotatably connected with a transmission gear (11) via a rotating shaft; the two ends of the transmission gear (11) are respectively meshed with the driving gear (10) and the driven gear plate (13); and the diameters of the driven gear plate (13), the transmission gear (11) and the driving gear (10) decrease in order from large to small.

4. The rheumatoid arthritis rehabilitation exercise device according to claim 1, characterized in that: The swing mechanism comprises a driven shaft (19) rotatably connected to a side of the pedal frame (15) close to the driving shaft (16) through a bearing, the bottom ends of the driven shaft (19) and the driving shaft (16) are both fixed with a first sector gear (18) meshing with each other, and the top end of the driven shaft (19) is fixed with a guide frame (20), the bottom of the pedal frame (15) is fixed with a third motor (27) at one end relative to the driving shaft (16), the output end of the third motor (27) is connected with a connecting shaft (23), the top end of the connecting shaft (23) extends into the pedal frame (15) and is fixed with a rotating handle (22), the top side of the rotating handle (22) is provided with a movable guide column (21), the top end of the guide column (21) is slidably fitted in the guide frame (20), the rotating handle (22) is provided with a distance adjustment component, and the distance adjustment component is used to adjust the distance between the connecting shaft (23) and the guide column (21).

5. The rheumatoid arthritis rehabilitation exercise device according to claim 4, characterized in that: The pitch adjustment component comprises a sliding cavity (24) opened on the top side of a rotating handle (22); a screw rod (25) is rotatably connected to the interior of the sliding cavity (24) via a bearing; a fourth motor (28) is fixed to one end of the rotating handle (22); an output end of the fourth motor (28) is connected to the screw rod (25); a movable block (26) is slidably connected to the interior of the sliding cavity (24); the movable block (26) is screwed onto the outside of the screw rod (25) via a thread, and the bottom end of the guide column (21) is fixedly connected to the movable block (26).

6. The rheumatoid arthritis rehabilitation exercise device according to claim 1, characterized in that: The top side of the pedal (17) is provided with an anti-slip pad, and the top end of the pedal (17) is connected with a binding strap.

7. The rheumatoid arthritis rehabilitation exercise device according to claim 3, characterized in that: The transmission assembly comprises a second synchronous wheel (37) rotatably connected to one end of the inner side of the blocking frame (29) near the limit rod (31), and the other end of the inner side of the blocking frame (29) is rotatably connected to the first synchronous wheel (36), a synchronous belt (38) is sleeved between the first synchronous wheel (36) and the second synchronous wheel (37), the output end of the second synchronous wheel (37) is connected to the first connecting handle (39), the end of the first connecting handle (39) is rotatably connected to the second connecting handle (40), the top end of the second connecting handle (40) is movably connected to the limit rod (32) through a rotating shaft, and a transmission rod (30) is connected between the first synchronous wheel (36) and the transmission gear (11).

8. The rheumatoid arthritis rehabilitation exercise device according to claim 1, characterized in that: The twisting mechanism comprises a movable frame (41) slidably connected to the inner side of one of the support plates (33), and a fifth motor (43) is fixed on the outer side of the support plate (33), an output end of the fifth motor (43) extends into the movable frame (41) and is connected to a second sector gear (44), inner teeth plates (42) that can mesh with the second sector gear (44) are fixed on both sides of the inside of the movable frame (41), and an outer teeth plate (45) is fixed on the top side of the movable frame (41) near the bottom of the gripping rod (34), and one end of the gripping rod (34) is connected to a driven gear (46) that meshes with the outer teeth plate (45).

9. The rheumatoid arthritis rehabilitation exercise device according to claim 8, characterized in that: T-shaped clamping blocks (47) are symmetrically fixed to both ends of the inner side of the movable frame (41), and a T-shaped clamping groove (48) matching the T-shaped clamping block (47) is provided on the inner side of the support plate (33).

10. The rheumatoid arthritis rehabilitation exercise device according to claim 1, characterized in that: The outer wall of the grip rod (34) is provided with a silicone sleeve (35).

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