A motion rehabilitation device after limb injury

Abstract

The present invention relates to the technical field of sports rehabilitation, and specifically relates to a sports rehabilitation device for limb injuries, including a moving seat. Universal wheels for horizontal movement are provided below the moving seat. An adjusting frame is installed above the moving seat, and the height of the adjusting frame is adjustable. A seat board is provided above the adjusting frame; through the sliding structure of the first positioning frame and the second positioning frame, the length of the thigh positioning frame is adjustable, so that the applicable range of the sports rehabilitation device is wider. And through the gap clamping of the positioning column and the tooth block in the rack, the fixation after the length adjustment of the thigh positioning frame is realized, so that the digital adjustment of the length of the thigh positioning frame is more accurate and is not prone to loosening, avoiding that the thigh positioning frame cannot provide the most accurate supporting force for the patient's thigh, resulting in deviation of the knee joint force during the patient's rehabilitation exercise and causing secondary injuries.

Description

Technical Field

[0001] The present invention relates to the technical field of sports rehabilitation, and specifically to a sports rehabilitation device for limb injuries. Background Art

[0002] The knee joint is composed of the lower end of the femur, the upper end of the tibia, and the patella. It is the largest and most complex joint in the human body and belongs to a trochoid joint.

[0003] In the prior art, after the knee joint undergoes surgery for a period of time, sports rehabilitation is required. According to the specific situation of the patient, sports rehabilitation equipment is used to control the leg bending training.

[0004] However, the existing sports rehabilitation equipment is not convenient to use. Especially for some patients with severely damaged knee joints, multiple accompanying personnel are often required to assist during the use process. Summary of the Invention

[0005] The purpose of the present invention is to provide a sports rehabilitation device for limb injuries to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A sports rehabilitation device for limb injuries, comprising:

[0008] A moving seat, a universal wheel for horizontal movement is arranged below the moving seat, an adjusting frame is installed above the moving seat, the height of the adjusting frame is adjustable, and a seat board is arranged above the adjusting frame;

[0009] A thigh positioning frame is arranged on one side of the adjusting frame. The thigh positioning frame can be telescoped according to the patient's body shape. A calf positioning frame is arranged on the side of the thigh positioning frame away from the adjusting frame. The thigh positioning frame and the calf positioning frame respectively fix the patient's thigh and calf;

[0010] The thigh positioning frame is respectively rotatably connected to the adjusting frame and the calf positioning frame;

[0011] A rotating plate is arranged below the thigh positioning frame. The rotating plate drives the thigh positioning frame to flip, and the calf positioning frame follows the thigh positioning frame to flip, realizing the bending of the patient's leg.

[0012] Furthermore, brackets are respectively and fixedly connected to both sides above the moving seat. Connecting rods are respectively and fixedly connected to both sides of the adjusting frame. Lifting blocks are fixedly connected to the outer ends of the connecting rods. The lifting blocks are arranged inside the brackets and are vertically and slidably connected to the brackets. A plurality of clamping grooves are respectively arranged on the inner walls of both sides of the brackets, and the clamping grooves are vertically and evenly distributed inside the brackets. Clamping columns are slidably connected to both sides of the lifting blocks, and the clamping columns are clamped and fixed to the clamping grooves. A first spring is arranged inside the clamping columns. One end of the first spring is fixedly connected to the clamping column, and the other end of the first spring is fixedly connected to the inner wall of the lifting block.

[0013] Furthermore, a first connecting rope is also fixedly connected to the inside of the clamping column. The other end of the first connecting rope penetrates into the connecting rod, and the end of the first connecting rope passes out of the connecting rod and is fixedly connected to the sliding column. The sliding column is sleeved outside the connecting rod and is slidably connected to it. A second spring is arranged on the side of the sliding column away from the lifting block. One end of the second spring is fixedly connected to the sliding column, and the other end of the second spring is fixedly connected to the outer wall of the adjusting frame. A protective sleeve is sleeved outside the second spring. The protective sleeve completely covers the outside of the second spring, and for the part of the protective sleeve covering the sliding column, the protective sleeve is fixedly connected to the outer wall of the adjusting frame.

[0014] Furthermore, a groove is arranged above the adjusting frame, and a through hole that completely penetrates it is arranged in the middle of the adjusting frame. A cylinder is arranged in the through hole of the adjusting frame. The cylinder is fixed on the moving seat. The adjusting frame is vertically and slidably connected to the outer wall of the cylinder through the through hole. The piston rod of the cylinder penetrates above the adjusting frame, and a seat plate is arranged at the end of the piston rod of the cylinder. The lower part of the seat plate is rotatably connected to the piston rod, and the seat plate is clamped to the groove above the adjusting frame.

[0015] Furthermore, the thigh positioning frame includes a first positioning frame and a second positioning frame. The first positioning frame is rotatably installed on the adjusting frame through a first hinge frame. The second positioning frame is slidably connected above one side of the first positioning frame away from the adjusting frame. The sliding parts of the first positioning frame and the second positioning frame overlap vertically. A limiting block is fixedly connected below the overlapping part of the second positioning frame. The limiting block is inserted into the overlapping part of the first positioning frame, and the limiting block is horizontally and slidably connected to the first positioning frame. A first restraint strap is arranged above the first positioning frame.

[0016] Further, a rack is installed in the middle above the overlapping part of the first positioning frame, a positioning column is arranged inside the end of the overlapping part of the second positioning frame, the positioning column is slidably connected to the second positioning frame, the positioning column is clamped with the tooth block of the rack, a third spring is arranged above the positioning column, and both ends of the third spring are fixedly connected to the positioning column and the inner wall of the second positioning frame respectively. A second connecting rope is also arranged above the positioning column. The second connecting rope penetrates into the second positioning frame and passes out from the side of the second positioning frame. A pulling block is fixedly connected to the end of the second connecting rope passing out of the second positioning frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, the height of the adjusting frame is adjustable, enabling the patient to adjust different heights according to their height and build, making the patient more comfortable during use and having better applicability at the same time. The height of the seat board is adjusted by the sliding of the sliding column. After adjusting to the highest position, the patient can sit down first and then adjust the height, which is more user-friendly to the patient, and mild patients can use it independently, saving the labor of accompanying personnel.

[0019] 2. With the structure that the seat board can rise to a relatively high height and can rotate, it is convenient for the accompanying personnel to carry when some severely ill patients need to use it. It is convenient for the accompanying personnel to carry the immobile patient from the outer side of the seat board to the seat board, avoiding carrying the patient above the moving seat and moving the patient to a lower position, which increases the workload of the carrying personnel.

[0020] 3. Through the sliding structure of the first positioning frame and the second positioning frame, the length of the thigh positioning frame is adjustable, enabling the range of application of this exercise rehabilitation device to be wider. And through the clamping of the gap between the positioning column and the tooth block in the rack, the fixation after the length adjustment of the thigh positioning frame is realized, making the digital adjustment of the length of the thigh positioning frame more accurate and not prone to loosening, avoiding the situation that the thigh positioning frame cannot provide the most accurate supporting force for the patient's thigh, resulting in deviation of the knee joint force during the patient's rehabilitation exercise and causing secondary injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a sectional structural schematic diagram of the bracket of the present invention;

[0023] Figure 3 is of the present invention Figure 2 enlarged structural schematic diagram at A in;

[0024] Figure 4 is a sectional structural schematic diagram of the adjusting frame of the present invention;

[0025] Figure 5 For the Figure 4 schematic enlarged structure view at position B in the present invention;

[0026] Figure 6 schematic sectional structure view of the present invention;

[0027] Figure 7 For the Figure 6 schematic enlarged structure view at position C in the present invention;

[0028] Figure 8 schematic longitudinal sectional structure view of the thigh positioning frame of the present invention;

[0029] Figure 9 For the Figure 8 schematic enlarged structure view at position D in the present invention;

[0030] Figure 10 schematic transverse sectional structure view of the thigh positioning frame of the present invention;

[0031] Figure 11 For the Figure 10 schematic enlarged structure view at position E in the present invention.

[0032] In the figure: 1. Moving seat; 11. Universal wheels; 12. Guide rail; 2. Bracket; 21. Card slot; 3. Adjusting frame; 31. Connecting rod; 32. Lifting block; 33. Card column; 34. First spring; 35. First connecting rope; 36. Slide column; 37. Protective sleeve; 38. Second spring; 39. Seat board; 310. Cylinder; 4. Thigh positioning frame; 41. First positioning frame; 42. Second positioning frame; 43. Limiting block; 44. Rack; 45. First hinge frame; 46. First restraint belt; 5. Positioning column; 51. Third spring; 53. Second connecting rope; 54. Pulling block; 6. Calf positioning frame; 61. Rotating wheel; 62. Second restraint belt; 63. Second hinge frame; 64. Telescopic rod; 7. Fixed seat; 8. Rotating plate; 81. Driving rod; 82. Third hinge frame; 83. Connecting plate; 9. Slide plate; 91. Fourth spring; 92. Third connecting rope. Detailed implementation manners

[0033] In order to more clearly explain the overall concept of the present invention, the following will be further described in detail by way of examples in combination with the accompanying drawings of the specification.

[0034] Please refer to Figures 1 to 11 , the present invention provides a technical solution: a movement rehabilitation device after limb injury, including a moving seat 1, a universal wheel 11 for horizontal movement is arranged below the moving seat 1, an adjusting frame 3 is installed above the moving seat 1, the height of the adjusting frame 3 is adjustable, and a seat board 39 is arranged above the adjusting frame 3;

[0035] Since the height of the adjustment frame 3 is adjustable, some patients with less severe limb injuries, that is, patients who can sit down with the help of medical staff or crutches, can adjust the adjustment frame 3 to a height suitable for their own height and body shape, making the patients feel comfortable when sitting on the seat board 39 and facilitating sitting down.

[0036] A thigh positioning frame 4 is provided on one side of the adjustment frame 3. The thigh positioning frame 4 can be telescoped according to the patient's body shape. A calf positioning frame 6 is provided on the side of the thigh positioning frame 4 away from the adjustment frame 3. The thigh positioning frame 4 and the calf positioning frame 6 respectively fix the patient's thigh and calf.

[0037] The thigh positioning frame 4 is respectively rotatably connected to the adjustment frame 3 and the calf positioning frame 6.

[0038] The thigh positioning frame 4 fixes the patient's thigh part, and the calf positioning frame 6 fixes the patient's calf part. Through the mutual rotation structure among the adjustment frame 3, the thigh positioning frame 4 and the calf positioning frame 6, the patient's leg is driven to bend, so as to perform postoperative rehabilitation training for the knee joint.

[0039] A rotating plate 8 is provided below the thigh positioning frame 4. The rotating plate 8 drives the thigh positioning frame 4 to flip, and the calf positioning frame 6 follows the thigh positioning frame 4 to flip, realizing the bending of the patient's leg.

[0040] Through the structure of the rotating plate 8, the rotation of the thigh positioning frame 4 is controlled, and the calf positioning frame 6 is driven to rotate accordingly. After the two respectively fix the patient's thigh and calf, the controllable movement between the two controls the bending of the patient's leg, and the bending angle can also be adjusted as needed, which is applicable to patients in different rehabilitation periods.

[0041] On both sides above the moving seat 1, brackets 2 are respectively fixedly connected. On both sides of the adjustment frame 3, connecting rods 31 are respectively fixedly connected. At the outer end of the connecting rod 31, a lifting block 32 is fixedly connected. The lifting block 32 is arranged in the bracket 2. The lifting block 32 is vertically slidably connected to the bracket 2. On the inner walls of both sides of the bracket 2, a number of card slots 21 are respectively arranged. The card slots 21 are vertically and evenly distributed in the bracket 2. On both sides of the lifting block 32, a clamping post 33 is slidably connected. The clamping post 33 is clamped and fixed with the card slot 21. Inside the clamping post 33, a first spring 34 is arranged. One end of the first spring 34 is fixedly connected to the clamping post 33, and the other end of the first spring 34 is fixedly connected to the inner wall of the lifting block 32.

[0042] By sliding the lifting block 32 up and down within the bracket 2, after the lifting block 32 slides to an appropriate height, under the elastic force of the first spring 34, the clamping post 33 is clamped with the clamping groove 21, fixing the adjusting frame 3 at this height, so as to adjust the height convenient for sitting for mild and moderate patients, and at the same time increasing the comfort of the patient's use.

[0043] A first connecting rope 35 is also fixedly connected to the inner side of the clamping post 33. The other end of the first connecting rope 35 penetrates into the connecting rod 31. The end of the first connecting rope 35 passes out of the connecting rod 31 and is fixedly connected to the sliding column 36. The sliding column 36 is sleeved outside the connecting rod 31 and is slidably connected thereto. A second spring 38 is arranged on the side of the sliding column 36 away from the lifting block 32. One end of the second spring 38 is fixedly connected to the sliding column 36, and the other end of the second spring 38 is fixedly connected to the outer wall of the adjusting frame 3. A protective sleeve 37 is sleeved outside the second spring 38. The protective sleeve 37 completely covers the outside of the second spring 38, and the part of the protective sleeve 37 covering the sliding column 36 is fixedly connected to the outer wall of the adjusting frame 3.

[0044] The patient can first move the adjusting frame 3 to the highest point within the bracket 2 to facilitate sitting down. At this time, pull the sliding column 36 inward, so that the sliding column 36 drives the first connecting rope 35 to contract inward, so that the outer end of the first connecting rope 35 pulls the clamping post 33 to contract into the lifting block 32. At this time, the lifting block 32 slides vertically downward along the bracket 2. At the same time, after the patient pulls the sliding column 36 and then immediately releases the sliding column 36, under the elastic force of the second spring 38, the sliding column 36 is reset, and the first connecting rope 35 loses the restraint force on the clamping post 33. Under the elastic force of the first spring 34, the clamping post 33 pops out outward again and is inserted into the adjacent clamping groove 21 below. Repeat the operation multiple times to adjust the height of the seat board 39. It is also possible to first adjust the height of the seat board 39 and then sit down, and select according to the patient's recovery degree;

[0045] Through the structure of the protective sleeve 37, it is prevented that the second spring 38 leaks out, and the hand is pinched by the second spring 38 during the process of sliding the sliding column 36.

[0046] A groove is arranged above the adjusting frame 3. A through hole completely penetrating it is arranged in the middle of the adjusting frame 3. A cylinder 310 is arranged in the through hole of the adjusting frame 3. The cylinder 310 is fixed on the moving seat 1. The adjusting frame 3 is vertically slidably connected to the outer wall of the cylinder 310 through the through hole. The piston rod of the cylinder 310 penetrates above the adjusting frame 3. The end of the piston rod of the cylinder 310 is provided with the seat board 39. The lower part of the seat board 39 is rotatably connected to the piston rod. The seat board 39 is clamped with the groove above the adjusting frame 3.

[0047] For a seriously ill patient, that is, a patient whose legs cannot touch the ground at all, or whose legs are injured, the medical staff or accompanying staff move the seat board 39 to the highest position through the cylinder 310, and carry the patient's legs flatly to the seat board 39. At this time, the patient's legs face the outside of the movable seat 1. After the seat board 39 supports the patient, the seat board 39 is rotated to move the patient's legs to the top of the thigh positioning frame 4, and the cylinder 310 is activated to lower the seat board 39 into the adjustment frame 3. At this time, the patient's legs are placed on the thigh positioning frame 4.

[0048] By raising the seat 39 separately and being able to rotate the structure, the accompanying personnel can conveniently carry the patient who is difficult to move from the outward side of the seat 39 to the seat 39, avoiding carrying the patient above the mobile seat 1 and moving the patient to a lower position, which increases the workload of the carrying personnel.

[0049] The thigh positioning frame 4 includes a first positioning frame 41 and a second positioning frame 42. The first positioning frame 41 is rotatably mounted on the adjustment frame 3 via a first hinge frame 45. The second positioning frame 42 is slidably connected to the upper side of the first positioning frame 41 away from the adjustment frame 3. The sliding parts of the first positioning frame 41 and the second positioning frame 42 overlap up and down. A limiting block 43 is fixedly connected below the overlapping part of the second positioning frame 42. The limiting block 43 is inserted into the overlapping part of the first positioning frame 41. The limiting block 43 is horizontally slidably connected to the first positioning frame 41. A first restraint belt 46 is arranged above the first positioning frame 41.

[0050] Through the sliding structure of the first positioning frame 41 and the second positioning frame 42, the thigh positioning frame 4 can be extended and retracted, so that it can be suitable for patients of different ages and shapes. Through the structure of the limit block 43, the first positioning frame 41 and the second positioning frame 42 are prevented from falling off and sliding and offsetting. After the length of the thigh positioning frame 4 is adjusted, the patient's legs are fixed to the thigh positioning frame 4 with the first restraint belt 46.

[0051] A rack 44 is installed in the middle of the upper part of the overlapping part of the first positioning frame 41, and a positioning column 5 is arranged in the end of the overlapping part of the second positioning frame 42. The positioning column 5 is slidably connected with the second positioning frame 42, and the positioning column 5 is clamped with the tooth block of the rack 44. A third spring 51 is arranged above the positioning column 5, and the two ends of the third spring 51 are respectively fixedly connected to the positioning column 5 and the inner wall of the second positioning frame 42. A second connecting rope 53 is also arranged above the positioning column 5, and the second connecting rope 53 passes through the second positioning frame 42 and passes through the side of the second positioning frame 42. The end of the second connecting rope 53 passing through the second positioning frame 42 is fixedly connected with a pulling block 54.

[0052] Pull the pull block 54 outwards, so that the second connecting rope 53 drives the positioning column 5 to contract into the second positioning frame 42, enabling the two to slide relative to each other for adjusting the length of the thigh positioning frame 4. Release the pull block 54, so that the second connecting rope 53 loses the binding force. Under the elastic force of the third spring 51, the positioning column 5 is stuck into the gaps between different tooth blocks of the rack 44, fixing the thigh positioning frame 4 after adjusting it to different lengths and preventing the length of the thigh positioning frame 4 from changing during the rehabilitation training and causing secondary injury to the patient's knee joint.

[0053] The calf positioning frame 6 is rotatably connected to the second positioning frame 42 through a rotating wheel 61. The rotating wheel 61 is driven by an external motor. A second restraint belt 62 is provided above the calf positioning frame 6.

[0054] Fix the patient's calf on the calf positioning frame 6 through the second restraint belt 62. Control the rotation of the rotating wheel 61 by the motor, so that the angle between the calf positioning frame 6 and the thigh positioning frame 4 is controllable. Adjust the angle between the calf positioning frame 6 and the thigh positioning frame 4 according to the angle between the thigh positioning frame 4 and the adjusting frame 3.

[0055] A rotating plate 8 is provided between the fixed seat 7 and the thigh positioning frame 4. The rotating plate 8 is arranged below one side of the thigh positioning frame 4 close to the adjusting frame 3. The upper surface of the rotating plate 8 abuts against the lower part of the first positioning frame 41, and the rotating plate 8 can slide relative to the bottom of the thigh positioning frame 4. A driving rod 81 is provided below the rotating plate 8. The driving rod 81 penetrates through the fixed seat 7. The driving rod 81 is installed on the moving seat 1. The upper end of the driving rod 81 is rotatably connected to the rotating plate 8 through a third hinge frame 82. The driving rod 81 controls the lifting of the rotating plate 8, so that the rotating plate 8 rotates following the flipping of the thigh positioning plate 4.

[0056] According to the leg of the patient that needs to undergo rehabilitation training, select and start the corresponding driving rod 81. If both legs of the patient need to undergo rehabilitation training, start the two driving rods 81 simultaneously;

[0057] The driving rod 81 controls the rotating plate 8 to rise and jacks up the thigh positioning plate 4. Since the rotating plate 8 and the screw rod of the driving rod 81 rotate in the same way, according to the patient's rehabilitation condition, by controlling the stroke distance of the driving rod 81, the bending amplitude of the patient's leg is controlled to avoid wound tearing.

[0058] A telescopic rod 64 is provided below the calf positioning frame 6 close to the thigh positioning frame 4. An elastic component is arranged inside the telescopic rod 64. The upper part of the telescopic rod 64 is rotatably connected to the calf positioning frame 6 through a second hinge frame 63. The telescopic rod 64 is arranged on a fixed seat 7. The telescopic rod 64 vertically penetrates through the fixed seat 7 and is slidably connected to a chute on the fixed seat 7. The fixed seat 7 is arranged below the thigh positioning frame 4, and the fixed seat 7 extends to below part of the calf positioning frame 6. The fixed seat 7 is fixedly connected to the adjusting frame 3 through a rod.

[0059] A sliding plate 9 is fixedly installed below the telescopic rod 64. The sliding plate 9 is arranged inside a guide rail 12. The sliding plate 9 is horizontally slidably connected to the guide rail 12. The guide rail 12 is installed on the moving seat 1. A fourth spring 91 is arranged between the sliding plate 9 and the end of the guide rail 12. Two ends of the fourth spring 91 are respectively fixedly connected to the sliding plate 9 and the guide rail 12. A third connecting rope 92 is fixedly connected to one side of the sliding plate 9 facing the end of the guide rail 12. The third connecting rope 92 passes through the end of the guide rail 12 and is fixedly connected to a connecting plate 83. The connecting plate 83 is installed between two rotating plates 8 on both sides. The connecting plate 83 can be fixed to one of the rotating plates 8.

[0060] Through the elastic component structure of the telescopic rod 64, the rotation of the calf positioning frame 6 is supported to assist the rotation between the calf positioning frame 6 and the thigh positioning frame 4, and when the calf positioning frame 6 is turned over, the telescopic rod 64 can move.

[0061] During the process of the thigh positioning frame 4 turning over, the connecting plate 83 moves upward, so that the third connecting rope 92 drives the sliding plate 9 to slide towards the guide rail 12 to ensure that the position of the telescopic rod 64 can be synchronized with the rotation of the calf positioning frame 6. After the thigh positioning frame 4 is reset to the horizontal position, the third connecting rope 92 is relaxed, and under the elastic force of the fourth spring 91, the sliding plate 9 drives the telescopic rod 64 to reset.

[0062] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A motion rehabilitation device after limb injury, characterized in that it includes: A moving seat (1), a universal wheel (11) for horizontal movement is arranged below the moving seat (1), an adjusting frame (3) is installed above the moving seat (1), the height of the adjusting frame (3) is adjustable, and a seat board (39) is arranged above the adjusting frame (3); A thigh positioning frame (4) is arranged on one side of the adjusting frame (3), the thigh positioning frame (4) can be telescoped according to the patient's body shape, a calf positioning frame (6) is arranged on the side of the thigh positioning frame (4) away from the adjusting frame (3), and the thigh positioning frame (4) and the calf positioning frame (6) respectively fix the patient's thigh and calf; The thigh positioning frame (4) is respectively rotatably connected to the adjusting frame (3) and the calf positioning frame (6); A rotating plate (8) is arranged below the thigh positioning frame (4), the rotating plate (8) drives the thigh positioning frame (4) to flip, and the calf positioning frame (6) follows the thigh positioning frame (4) to flip to realize the bending of the patient's leg; The thigh positioning frame (4) includes a first positioning frame (41) and a second positioning frame (42), the first positioning frame (41) is rotatably installed on the adjusting frame (3) through a first hinge frame (45), and the second positioning frame (42) is slidably connected above the side of the first positioning frame (41) away from the adjusting frame (3), and the sliding parts of the first positioning frame (41) and the second positioning frame (42) overlap up and down; A rotating plate is arranged between the fixed seat and the thigh positioning frame. The rotating plate is arranged below the side of the thigh positioning frame close to the adjusting frame. The upper surface of the rotating plate abuts against the lower part of the first positioning frame, and the rotating plate can slide relative to the bottom of the thigh positioning frame. A driving rod is arranged below the rotating plate. The driving rod penetrates through the fixed seat. The driving rod is installed on the moving seat. The upper end of the driving rod is rotatably connected to the rotating plate through a third hinge frame. The driving rod controls the lifting of the rotating plate so that the rotating plate rotates following the flipping of the thigh positioning plate; A telescopic rod is arranged below the calf positioning frame close to the thigh positioning frame. An elastic component is arranged inside the telescopic rod. The upper part of the telescopic rod is rotatably connected to the calf positioning frame through a second hinge frame. The telescopic rod is arranged on the fixed seat. The telescopic rod vertically penetrates through the fixed seat and is slidably connected to the chute on the fixed seat. The fixed seat is arranged below the thigh positioning frame, and the fixed seat extends to part of the lower part of the calf positioning frame. The fixed seat is fixedly connected to the adjusting frame through a rod; A skateboard is fixedly installed below the telescopic rod. The skateboard is arranged within a guide rail and is horizontally slidably connected to the guide rail. The guide rail is installed on the moving seat. A fourth spring is arranged between the skateboard and the end of the guide rail. Two ends of the fourth spring are respectively fixedly connected to the skateboard and the guide rail. A third connecting rope is fixedly connected to one side of the skateboard facing the end of the guide rail. The third connecting rope passes through the end of the guide rail and is fixedly connected to a connecting plate. The connecting plate is installed between two rotating plates on both sides, and the connecting plate can be fixed to one of the rotating plates.

2. The exercise rehabilitation device after limb injury according to claim 1, wherein Supports (2) are respectively fixedly connected to both sides above the moving seat (1). Connecting rods (31) are respectively fixedly connected to both sides of the adjusting frame (3). Lifting blocks (32) are fixedly connected to outer ends of the connecting rods (31). The lifting blocks (32) are arranged within the supports (2) and are vertically slidably connected to the supports (2). A plurality of card slots (21) are respectively arranged on inner walls of both sides of the supports (2), and the card slots (21) are vertically and evenly distributed within the supports (2).

3. The exercise rehabilitation device after limb injury according to claim 2, wherein Clamping columns (33) are slidably connected to both sides of the lifting blocks (32). The clamping columns (33) are clamped and fixed to the card slots (21). A first spring (34) is arranged inside the clamping columns (33). One end of the first spring (34) is fixedly connected to the clamping column (33), and the other end of the first spring (34) is fixedly connected to an inner wall of the lifting block (32).

4. The exercise rehabilitation device after limb injury according to claim 3, wherein A first connecting rope (35) is also fixedly connected to the inside of the clamping column (33). The other end of the first connecting rope (35) penetrates into the connecting rod (31). The end of the first connecting rope (35) passes out of the connecting rod (31) and is fixedly connected to a sliding column (36). The sliding column (36) is sleeved outside the connecting rod (31) and is slidably connected thereto.

5. The exercise rehabilitation device after limb injury according to claim 4, wherein A second spring (38) is arranged on one side of the sliding column (36) away from the lifting block (32). One end of the second spring (38) is fixedly connected to the sliding column (36), and the other end of the second spring (38) is fixedly connected to an outer wall of the adjusting frame (3). A protective sleeve (37) is sleeved outside the second spring (38). The protective sleeve (37) completely covers the outside of the second spring (38), and for the part of the protective sleeve (37) covering the sliding column (36), the protective sleeve (37) is fixedly connected to the outer wall of the adjusting frame (3).

6. The exercise rehabilitation device after limb injury according to claim 5, wherein Above the adjustment frame (3), there is a groove. In the middle of the adjustment frame (3), there is a through hole that completely penetrates it. Inside the through hole of the adjustment frame (3), there is a cylinder (310), and the cylinder (310) is fixed on the moving seat (1).

7. The kinematic rehabilitation device after limb injury according to claim 6, characterized in that The adjustment frame (3) is vertically slidably connected to the outer wall of the cylinder (310) through the through hole. The piston rod of the cylinder (310) penetrates above the adjustment frame (3). At the end of the piston rod of the cylinder (310), there is a seat plate (39). The lower part of the seat plate (39) is rotatably connected to the piston rod, and the seat plate (39) is clamped with the groove above the adjustment frame (3).

8. The kinematic rehabilitation device after limb injury according to claim 1, characterized in that Below the overlapping part of the second positioning frame (42), a limiting block (43) is fixedly connected. The limiting block (43) is inserted into the overlapping part of the first positioning frame (41). The limiting block (43) is horizontally slidably connected to the first positioning frame (41). Above the first positioning frame (41), there is a first restraint strap (46).

9. The kinematic rehabilitation device after limb injury according to claim 8, characterized in that In the middle above the overlapping part of the first positioning frame (41), a rack (44) is installed. Inside the end of the overlapping part of the second positioning frame (42), there is a positioning column (5). The positioning column (5) is slidably connected to the second positioning frame (42). The positioning column (5) is clamped with the tooth block of the rack (44). Above the positioning column (5), there is a third spring (51). The two ends of the third spring (51) are respectively fixedly connected to the positioning column (5) and the inner wall of the second positioning frame (42). Above the positioning column (5), there is also a second connecting rope (53). The second connecting rope (53) penetrates into the second positioning frame (42) and passes out from the side of the second positioning frame (42). At the end where the second connecting rope (53) passes out of the second positioning frame (42), a pull block (54) is fixedly connected.

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