Knee joint stretching and bending exercise device used after meniscus injury operation

Abstract

The utility model relates to the technical field of knee joint exercising equipment, in particular to a knee joint stretching and bending exercising device used after meniscus injury operation, which comprises a bottom plate, a soft cushion is fixed at the top of the bottom plate, and a stretching and bending exercising component used for supporting legs of a patient is arranged on one side of the bottom plate. The bottom end of the flexion and extension exercise assembly is provided with a pedal assembly used for supporting the feet of a patient. The flexion and extension exercise assembly comprises a thigh supporting plate, and a moving assembly used for driving the thigh supporting plate to move left and right is arranged between the thigh supporting plate and the bottom plate. According to the utility model, the foldable bottom plate and the flexion and extension exercise assembly are utilized to reduce the overall volume of the multifunctional fitness equipment, so that the multifunctional fitness equipment is convenient to store, and the bottom plate can be placed on furniture for people to sit up, such as a chair, a bedside and the like, so that the multifunctional fitness equipment is not limited to use places; patients with different leg lengths can be supported by means of the extensible shank supporting plate mechanism, and the use range of the leg supporting device can be expanded and is not limited.

Description

Technical Field

[0001] The utility model relates to the technical field of knee joint training equipment, in particular to a knee joint extension and flexion training device for meniscus injury surgery. Background Art

[0002] The meniscus is a human tissue located in the knee joint, which is equivalent to a soft cushion for friction between two bearings. The meniscus can absorb the vibration of the knee joint caused by walking, running and jumping, and play a buffering role. The meniscus is a very important anatomical structure of the human knee joint. Many people suffer from meniscus injuries due to excessive exercise or trauma. Common surgical methods for meniscus injuries include meniscus repair and meniscus plasty. The former has a wider range of applications, especially for patients with more serious meniscus injuries, while the repair is suitable for patients with milder conditions but less serious injuries.

[0003] Within 4-6 weeks after surgical treatment, patients need to cooperate with daily functional exercises to help meniscus recovery. The activities that patients can perform during this period are knee flexion and extension exercises to increase joint mobility and achieve the effect of exercising meniscus. In the early stage of knee flexion and extension exercises, since the patient has just undergone surgical treatment and is still in a recovery state, it is necessary to use some auxiliary equipment to help them flex and extend the knee joint, such as a knee flexion and extension exercise device for meniscus injury surgery provided in prior art announcement number CN217091950. However, the device is large in size, not only inconvenient for daily storage, but also people need to have a large enough bed to place the device when using it, resulting in limited use of the place, in addition, the length of the movable board used to support people's legs in the device cannot be adjusted, resulting in the device also needing to set different specifications according to different leg lengths during production, resulting in limited use. Utility Model Content

[0004] In order to solve the problems of the existing knee joint flexion and extension training device being large in size and limited in use place and scope, the utility model provides the following technical solutions:

[0005] A knee flexion and extension exercise device for meniscus injury surgery, comprising a bottom plate, a soft pad fixed on the top of the bottom plate, a flexion and extension exercise component for supporting the patient's legs on one side of the bottom plate, and a foot pedal component for supporting the patient's feet at the bottom end of the flexion and extension exercise component;

[0006] The flexion and extension exercise component includes a thigh support plate, and a moving component for driving the thigh support plate to move left and right is provided between the thigh support plate and the bottom plate, and the position of the thigh support plate is changed by the moving component to support the patient's left leg or right leg;

[0007] The end of the thigh support plate away from the bottom plate is rotatably connected to a connecting frame through a first rotating shaft, the bottom of the connecting frame is rotatably connected to a calf support plate mechanism, the foot pedal assembly is installed at the bottom end of the calf support plate mechanism, and one end of the first rotating shaft is provided with a calf support plate driving mechanism that drives the connecting frame and the calf support plate mechanism to rotate upward, so that the patient's calf follows the rotation of the calf support plate mechanism to perform straightening exercises;

[0008] The calf support plate mechanism includes a connecting plate rotatably connected to the bottom end of the connecting frame, two vertical rods arranged side by side are fixed to the bottom end of the connecting plate, a plurality of threaded holes distributed at equal intervals are opened on the vertical rods, an extension plate is sleeved on the outside of the bottom end of the vertical rod, and fixing bolts are threadedly connected to the front and rear sides of the top end of the extension plate, one end of the fixing bolt extends into the threaded hole to fix the position of the extension plate at the outer end of the vertical rod to support the calves of patients with different lengths.

[0009] Furthermore, the calf support plate driving mechanism includes a mounting shell fixed to the front side of the thigh support plate by a bracket, one end of the first rotating shaft extends into the interior of the mounting shell and is movably connected to the side wall of the mounting shell by a bearing, a forward and reverse motor for driving the first rotating shaft to rotate is provided inside the mounting shell, the output shaft of the forward and reverse motor is fixed to one end of the first rotating shaft, a contactor for controlling the forward and reverse rotation of the forward and reverse motor is provided at the bottom of the forward and reverse motor, and two control buttons for respectively controlling the forward and reverse rotation of the forward and reverse motor are provided at the top of the outer wall of the mounting shell.

[0010] Furthermore, a plurality of equally spaced hanging rings are fixed to the bottom of the thigh support plate and one side of the connecting plate, and a tension spring is hung on the hanging ring at the bottom of the thigh support plate.

[0011] A rectangular groove for accommodating a hanging ring after the connecting plate is rotated 90 degrees is provided on the bottom of the thigh supporting plate and one side of the connecting plate.

[0012] Furthermore, a tension spring storage groove is provided on one side of the bottom of the base plate for storing the tension spring after the connecting plate is folded, and a sliding push-pull baffle is inserted at the bottom end of the tension spring storage groove.

[0013] Two first Velcro straps are provided on one side of the push-pull baffle plate, which are used to be tied to the outer end of the extension plate after the connecting plate and the extension plate are folded 90 degrees.

[0014] Furthermore, the bottom end of the connecting frame and the top end of the connecting plate are fixed together by a buckle.

[0015] Furthermore, the movable assembly includes a threaded rod movably connected to the inside of the base plate through a bearing, the front end of the threaded rod penetrates the base plate and extends out of the front side of the base plate, the outer end of the threaded rod is threadedly connected to a movable plate, one side of the movable plate is fixed to a side of the thigh support plate close to the base plate, and the movable plate can be driven to drive the thigh support plate to move left and right outside the base plate by rotating the threaded rod.

[0016] A rotating handle is fixed at the front end of the threaded rod, and a limiting groove for the movable plate to move is provided at one side of the inner side of the bottom plate.

[0017] Furthermore, the foot pedal assembly includes a foot plate fixed to one side of the bottom end of the extension plate, the foot plate is rotatably connected to a second rotating shaft and a guide rod, the second rotating shaft is arranged on a side close to the extension plate, a coil spring is wound around the bottom end of the second rotating shaft, one end of the coil spring is fixed to the outer wall of the second rotating shaft, the other end of the coil spring is fixed to the inside of the foot plate, a pull rope is wound around the outer wall of the top end of the second rotating shaft, one end of the pull rope passes around the outer end of the guide rod and passes through one side of the foot plate, and a pull ring is fixed to one end of the pull rope.

[0018] Two second Velcro straps are fixed on the front and rear sides of the footrest, for tying the patient's feet to the top of the footrest. Further, a carrying handle is embedded in the middle of the front wall of the base plate, and the bottom end of the carrying handle is rotatably connected to the front wall of the base plate.

[0019] Turning the carrying handle out from the front wall of the bottom plate can facilitate people to lift the folded utility model for movement, so that people can carry the utility model.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. In view of the problem that the knee flexion and extension exercise device in the prior art is relatively large in size, the present invention proposes for the first time a foldable base plate and a flexion and extension exercise component to reduce the overall volume of the present invention for easy storage. Moreover, the base plate in the present invention can be placed on furniture such as chairs and bedsides where people can sit up, and is not limited to the place of use. With the help of an extendable calf support plate mechanism, it can support patients with different leg lengths, and can also expand the scope of use of the present invention, not limiting the scope of use.

[0022] 2. In order to further expand the scope of use of the utility model, the movable component is capable of driving the flexion and extension exercise component to move left and right on one side of the cushion, so that the position of the flexion and extension exercise component can be changed to support the patient's left leg or right leg, thereby increasing the flexibility of the utility model when in use.

[0023] 3. The calf support plate driving mechanism provided in the utility model can drive the calf support plate mechanism to rotate upward, and the rotating calf support plate mechanism can drive the patient's calf to straighten upward, and then the patient's calf will naturally bend following the resetting of the calf support plate mechanism, so as to achieve the effect of helping the patient to perform flexion and extension exercises;

[0024] In addition, the utility model can also achieve the effect of helping patients to exercise their legs without the help of the calf support board driving mechanism. The patient can pull out the drawstring retracted inside the foot pad by hand, and then pull the drawstring by hand to drive the calf support board mechanism to rotate upward, so as to assist in knee flexion and extension exercises.

[0025] After the patient gradually recovers, the patient can also use his or her calf to spontaneously drive the calf support plate mechanism to rotate upward or reset, thereby achieving the effect of spontaneous knee flexion and extension exercise. In addition, during the spontaneous exercise, different numbers of tension springs can be hung on the hanging ring to flexibly increase the difficulty of the spontaneous exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the utility model installed on a chair;

[0027] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 3 It is a bottom view of the utility model;

[0029] Figure 4 The explosion-proof Figure 1 ;

[0030] Figure 5 The explosion-proof Figure 2 ;

[0031] Figure 6 It is a structural schematic diagram of the mobile component of the utility model;

[0032] Figure 7 The structure of the foot pedal assembly of the utility model is shown in FIG.

[0033] Figure 8 It is a top view of the utility model after folding;

[0034] Fig. 9 It is a schematic diagram of the utility model being folded and then erected.

[0035] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0036] 1 base plate, 2 cushions;

[0037] 3 flexion and extension exercise component, 31 thigh support plate, 32 connecting frame, 33 first rotating shaft, 34 calf support plate mechanism, 35 buckle, 36 calf support plate driving mechanism, 37 tension spring, 38 hanging ring, 39 push-pull baffle, 310 first Velcro strap, 311 tension spring storage tank;

[0038] 341 connecting plate, 342 vertical rod, 343 extension plate, 344 threaded hole, 345 fixing bolt;

[0039] 361 forward and reverse motor, 362 contactor, 363 mounting shell, 364 control button;

[0040] 4 moving assembly, 41 threaded rod, 42 moving plate, 43 rotating handle, 44 limiting groove;

[0041] 5 foot pedal assembly, 51 foot pad, 52 second rotating shaft, 53 coil spring, 54 pull rope, 55 guide rod, 56 pull ring, 57 second Velcro strap;

[0042] 6 Carrying handles. DETAILED DESCRIPTION

[0043] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0044] See also Figure 1 The utility model provides a knee flexion and extension exercise device for meniscus injury surgery, comprising a base plate 1, a soft pad 2 is fixed on the top of the base plate 1, a flexion and extension exercise component 3 for supporting the patient's legs is provided on one side of the base plate 1, and a foot pedal component 5 for supporting the patient's feet is provided at the bottom end of the flexion and extension exercise component 3. When in use, the base plate 1 can be placed on a chair, a stool, a bedside or a sofa, and the position of the flexion and extension exercise component 3 is arranged as follows: Figure 1 The patient then sits on the cushion 2 and supports his legs on the flexion and extension exercise component 3, and then the patient can start using the device. The device can be used in a variety of places.

[0045] To support the patient's leg that needs to be flexed and extended, e.g. Figure 2-6 As shown, the flexion and extension exercise component 3 includes a thigh support plate 31, and a moving component 4 for driving the thigh support plate 31 to move left and right is provided between the thigh support plate 31 and the base plate 1. The position of the thigh support plate 31 is changed by the moving component 4 to support the patient's left leg or right leg. When the thigh support plate 31 is located on the left side of the base plate 1, it can be used to support the patient's left leg to assist the patient in flexion and extension exercises of the left leg. When the thigh support plate 31 is located on the right side of the base plate 1, it can help the patient's right leg to perform flexion and extension exercises without changing the equipment, which helps to expand the scope of application of the utility model.

[0046] The structure of the mobile assembly 4 used above is as follows Figure 6 As shown, the moving component 4 includes a threaded rod 41 movably connected to the inside of the base plate 1 through a bearing, the front end of the threaded rod 41 penetrates the base plate 1 and extends out of the front side of the base plate 1 and is fixed with a rotating handle 43, the outer end of the threaded rod 41 is threadedly connected to a moving plate 42, and a limiting groove 44 for the moving plate 42 to move is also provided inside the base plate 1, one side of the moving plate 42 is fixed to the side of the thigh support plate 31 close to the base plate 1, during specific adjustment, the patient's family can drive the threaded rod 41 to rotate by rotating the rotating handle 43, so that the threaded rod 41 can drive the moving plate 42 to drive the thigh support plate 31 to move left and right outside the base plate 1 to change the position of the thigh support plate 31.

[0047] Furthermore, a connecting frame 32 is rotatably connected to the end of the thigh support plate 31 away from the bottom plate 1 through a first rotating shaft 33, and a calf support plate mechanism 34 is rotatably connected to the bottom of the connecting frame 32, and a foot pedal assembly 5 is installed at the bottom end of the calf support plate mechanism 34; Figure 4 As shown, the calf support plate mechanism 34 includes a connecting plate 341 rotatably connected to the bottom end of the connecting frame 32 .

[0048] The bottom end of the connecting frame 32 and the top end of the connecting plate 341 are fixed together by a buckle 35. Two vertical rods 342 arranged side by side are fixed to the bottom end of the connecting plate 341. The vertical rods 342 are provided with a plurality of threaded holes 344 distributed at equal intervals. An extension plate 343 is sleeved on the outside of the bottom end of the vertical rod 342. The front side and the rear side of the top end of the extension plate 343 are both threadedly connected with fixing bolts 345. One end of the fixing bolt 345 extends into the threaded hole 344 to fix the position of the extension plate 343 on the outer end of the vertical rod 342. By loosening the fixing bolt 345 and then stretching the extension plate 343 downward, the distance between the top end of the extension plate 343 and the bottom end of the connecting plate 341 can be adjusted, so that it can be used to support the calves of patients with different lengths, so as to further expand the scope of use of the utility model and solve the problem of limited scope of use due to different leg lengths in the prior art.

[0049] Because patients who have just undergone surgery find it difficult to flex and extend their calves, the utility model is designed to help patients flex and extend their calves. Figure 2-5 As shown, a calf support plate driving mechanism 36 for driving the connecting frame 32 and the calf support plate mechanism 34 to rotate upward is provided at one end of the first rotating shaft 33, so that the patient's calf can be straightened following the rotation of the calf support plate mechanism 34 to perform exercise.

[0050] Specifically, Figure 6As shown, the calf support plate driving mechanism 36 includes a mounting shell 363 fixed to the front side of the thigh support plate 31 through a bracket, one end of the first rotating shaft 33 extends into the mounting shell 363 and is movably connected to the side wall of the mounting shell 363 through a bearing, a forward and reverse motor 361 for driving the first rotating shaft 33 to rotate is arranged inside the mounting shell 363, the output shaft of the forward and reverse motor 361 is fixed to one end of the first rotating shaft 33, a contactor 362 for controlling the forward and reverse rotation of the forward and reverse motor 361 is arranged at the bottom of the forward and reverse motor 361, and two control buttons 364 for respectively controlling the forward and reverse rotation of the forward and reverse motor 361 are arranged at the top of the outer wall of the mounting shell 363. The patient can control the forward and reverse rotation of the forward and reverse motor 361 by long pressing the forward and reverse buttons. The control button 364 is rotated, so that the forward and reverse motor 361 can drive the first rotating shaft 33 to rotate clockwise, that is, the connecting frame 32 and the calf support plate mechanism 34 can be rotated upward, so that the patient's leg supported on the calf support plate mechanism 34 can be driven to straighten upward, and then stop pressing the control button 364 to control the forward and reverse motor 361 to stop rotating to keep the calf straight, and then long press another control button 364 to control the forward and reverse motor 361 to rotate in the opposite direction to drive the first rotating shaft 33 to rotate counterclockwise, so as to drive the connecting frame 32 and the calf support plate mechanism 34 to rotate and reset, so that the patient's leg droops naturally. Such repeated operations can make the patient's calf continuously straighten and bend, so as to achieve the effect of knee flexion and extension exercise, so as to help the recovery of the meniscus after surgery.

[0051] It is worth noting that the control circuit between the forward and reverse motor 361 and the contactor 362 and the control button 364 in the present invention is a mature technical solution in the prior art and will not be further described here.

[0052] In addition to the method of electrically driving the first rotating shaft 33 to rotate for exercise, the utility model can also allow the patient to manually control the rotation of the calf support plate mechanism 34, such as Figure 7 As shown, the foot pedal assembly 5 in the utility model includes a foot pad 51 fixed to one side of the bottom end of the extension plate 343, two second Velcro straps 57 are fixed to the front and rear sides of the foot pad 51, a second rotating shaft 52 and a guide rod 55 are rotatably connected inside the foot pad 51, the second rotating shaft 52 is arranged on the side close to the extension plate 343, a coil spring 53 is wound around the bottom end of the second rotating shaft 52, one end of the coil spring 53 is fixed to the outer wall of the second rotating shaft 52, and the other end of the coil spring 53 is fixed to the inside of the foot pad 51, a pull rope 54 is wound around the outer wall of the top end of the second rotating shaft 52, one end of the pull rope 54 passes through the outer end of the guide rod 55 and passes through one side of the foot pad 51, and a pull ring 56 is fixed to one end of the pull rope 54.

[0053] During manual control, the pull rope 54 must first be pulled out from the inside of the footrest 51, and then the patient's foot located on the top of the footrest 51 can be fixed to the footrest 51 with the help of two second Velcro straps 57, and then the patient can hold the pull ring 56 with one hand. If the patient wants to straighten the calf upward, he only needs to pull the pull ring 56 and retract the pull rope 54. Since the bottom end of the calf support plate mechanism 34 is subjected to an upward force, the bottom end of the calf support plate mechanism 34 can rotate upward around the first rotating shaft 33 together with the top end of the connecting frame 32, and drive the patient's calf to straighten upward. After loosening the pull rope 54, the calf can be reset to a natural drooping state under the action of its own weight. The rotation speed in this process is controlled by the patient himself, so that the range of motion of the flexion and extension exercise can adapt to the patient himself.

[0054] In addition, after a period of exercise, the difficulty of the exercise can be increased to help the meniscus recover, such as Figure 5 As shown, a plurality of equally spaced hanging rings 38 are fixed at the bottom of the thigh support plate 31 and one side of the connecting plate 341, and a tension spring 37 is hung on the hanging ring 38 at the bottom of the thigh support plate 31. The patient can hang a certain number of tension springs 37 on the hanging rings 38 at the bottom of the thigh support plate 31 and one side of the connecting plate 341 according to his or her own recovery situation, and use the elastic force of the tension spring 37 itself to increase the resistance when the patient spontaneously lifts his or her legs to straighten them, thereby increasing the difficulty of exercise.

[0055] After use, the buckle 35 can be opened to release the fixation between the connecting frame 32 and the connecting plate 341, so that the connecting plate 341 and the extension plate 343 can rotate 90 degrees around the first rotating shaft 33. Figure 8 In order to prevent the existence of the hanging ring 38 from affecting its rotation, as shown in FIG. Figure 5 and 6 As shown, a rectangular groove for accommodating the hanging ring 38 after the connecting plate 341 is rotated 90 degrees is provided at the bottom of the thigh support plate 31 and one side of the connecting plate 341;

[0056] Similarly, in order to store the tension spring 37 so that it does not block the rotation of the connecting plate 341, as shown in FIG. Figure 5 As shown, a tension spring storage groove 311 is provided on one side of the bottom of the base plate 1, and a sliding push-pull baffle 39 is inserted at the bottom end of the tension spring storage groove 311 to cover the tension spring 37 located inside the tension spring storage groove 311. The tension spring storage groove 311 is provided to facilitate the patient to place the tension spring 37 therein for storage; and in order to fix the folded connecting plate 341, two first Velcro straps 310 are provided on one side of the push-pull baffle 39, and the connecting plate 341 drives the extension plate 343 to rotate to the position as shown in FIG. Figure 8 and 9In the position shown, the first Velcro strap 310 can be tied to the outer end of the extension plate 343 to fix its position. The folded utility model has a small size, which is not only convenient for storage, but also has a carrying handle 6 embedded in the middle of the front wall of the base plate 1. The bottom end of the carrying handle 6 is rotatably connected to the front wall of the base plate 1. When people turn the carrying handle 6 out from the front wall of the base plate 1, it is convenient for people to lift the folded utility model to move it, so that people can carry the utility model.

[0057] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A knee flexion and extension exercise device for meniscus injury surgery, comprising a base plate (1), a soft pad (2) fixed on the top of the base plate (1), characterized in that: A flexion and extension exercise component (3) for supporting the patient's legs is provided on one side of the base plate (1), and a foot pedal component (5) for supporting the patient's feet is provided at the bottom end of the flexion and extension exercise component (3); The flexion and extension exercise component (3) comprises a thigh support plate (31), and a moving component (4) for driving the thigh support plate (31) to move left and right is provided between the thigh support plate (31) and the bottom plate (1). The position of the thigh support plate (31) is changed by the moving component (4) to support the left leg or right leg of the patient; The end of the thigh support plate (31) away from the bottom plate (1) is rotatably connected to a connecting frame (32) via a first rotating shaft (33); the bottom of the connecting frame (32) is rotatably connected to a calf support plate mechanism (34); the foot pedal assembly (5) is mounted at the bottom end of the calf support plate mechanism (34); one end of the first rotating shaft (33) is provided with a calf support plate driving mechanism (36) for driving the connecting frame (32) and the calf support plate mechanism (34) to rotate upward, so that the patient's calf follows the rotation of the calf support plate mechanism (34) to perform straightening exercises; The calf support plate mechanism (34) comprises a connecting plate (341) rotatably connected to the bottom end of the connecting frame (32); two vertical rods (342) arranged side by side are fixed to the bottom end of the connecting plate (341); a plurality of threaded holes (344) distributed at equal intervals are provided on the vertical rods (342); an extension plate (343) is sleeved on the outside of the bottom end of the vertical rod (342); a fixing bolt (345) is threadedly connected to the front side and the rear side of the top end of the extension plate (343); one end of the fixing bolt (345) extends into the threaded hole (344) to fix the position of the extension plate (343) at the outer end of the vertical rod (342) so as to support the calves of patients with different lengths.

2. The knee flexion and extension training device for meniscus injury post-surgery according to claim 1, characterized in that: The calf support plate driving mechanism (36) comprises a mounting shell (363) fixed to the front side of the thigh support plate (31) through a bracket, one end of the first rotating shaft (33) extends into the mounting shell (363) and is movably connected to the side wall of the mounting shell (363) through a bearing, a forward and reverse motor (361) for driving the first rotating shaft (33) to rotate is arranged inside the mounting shell (363), the output shaft of the forward and reverse motor (361) is fixed to one end of the first rotating shaft (33), a contactor (362) for controlling the forward and reverse rotation of the forward and reverse motor (361) is arranged at the bottom of the forward and reverse motor (361), and two control buttons (364) for respectively controlling the forward and reverse rotation of the forward and reverse motor (361) are arranged at the top of the outer wall of the mounting shell (363).

3. The knee flexion and extension training device for meniscus injury post-surgery according to claim 1, characterized in that: A plurality of equally spaced hanging rings (38) are fixed to the bottom of the thigh support plate (31) and one side of the connecting plate (341), and a tension spring (37) is hung on the hanging ring (38) at the bottom of the thigh support plate (31); A rectangular groove for accommodating the hanging ring (38) after the connecting plate (341) is rotated 90 degrees is provided on the bottom of the thigh supporting plate (31) and one side of the connecting plate (341).

4. The knee flexion and extension training device for meniscus injury post-surgery according to claim 1, characterized in that: A tension spring storage groove (311) is provided on one side of the bottom of the base plate (1) for storing the tension spring (37) after the connecting plate (341) is folded, and a sliding push-pull baffle (39) is inserted at the bottom end of the tension spring storage groove (311); Two first Velcro straps (310) are provided on one side of the push-pull baffle (39) and are used to be tied to the outer end of the extension plate (343) after the connecting plate (341) and the extension plate (343) are folded 90 degrees.

5. The knee flexion and extension training device for meniscus injury post-surgery according to claim 1, characterized in that: The bottom end of the connecting frame (32) and the top end of the connecting plate (341) are fixed together via a buckle (35).

6. The knee flexion and extension training device for meniscus injury post-surgery according to claim 1, characterized in that: The moving assembly (4) comprises a threaded rod (41) movably connected to the bottom plate (1) via a bearing, the front end of the threaded rod (41) passes through the bottom plate (1) and extends out of the front side of the bottom plate (1), the outer end of the threaded rod (41) is threadedly connected to a moving plate (42), one side of the moving plate (42) is fixed to a side of the thigh support plate (31) close to the bottom plate (1), and the moving plate (42) can be driven by rotating the threaded rod (41) to drive the thigh support plate (31) to move left and right outside the bottom plate (1); A rotating handle (43) is fixed to the front end of the threaded rod (41), and a limiting groove (44) for the movable plate (42) to move is provided on one side of the interior of the bottom plate (1).

7. The knee flexion and extension training device for meniscus injury post-surgery according to claim 1, characterized in that: The foot pedal assembly (5) includes a foot pad (51) fixed to one side of the bottom end of the extension plate (343), the foot pad (51) is rotatably connected to a second rotating shaft (52) and a guide rod (55), the second rotating shaft (52) is arranged on a side close to the extension plate (343), a coil spring (53) is wound around the bottom end of the second rotating shaft (52), one end of the coil spring (53) is fixed to the outer wall of the second rotating shaft (52), and the other end of the coil spring (53) is fixed to the inside of the foot pad (51), a pull rope (54) is wound around the outer wall of the top end of the second rotating shaft (52), one end of the pull rope (54) is passed around the outer end of the guide rod (55) and passes through one side of the foot pad (51), and a pull ring (56) is fixed to one end of the pull rope (54); Two second Velcro straps (57) are fixed to the front and rear sides of the footrest (51) for tying the patient's feet to the top of the footrest (51).

8. The knee flexion and extension training device for meniscus injury post-surgery according to claim 1, characterized in that: A carrying handle (6) is embedded in the middle of the front wall of the base plate (1), and the bottom end of the carrying handle (6) is rotatably connected to the front wall of the base plate (1).

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