Leg rehabilitation training system

Abstract

The utility model discloses a leg rehabilitation training system which comprises an armrest mechanism and two leg supporting devices, and the armrest mechanism is used for a patient to hold or lie down; the leg supporting device comprises a thigh fixing sleeve, a shank fixing sleeve, a joint connecting mechanism, a muscle tension detecting device and a locking mechanism, the thigh fixing sleeve is used for sleeving the thigh of a patient, the shank fixing sleeve is used for sleeving the shank of the patient, and the thigh fixing sleeve is rotationally connected with the shank fixing sleeve through the joint connecting mechanism; the locking mechanism can lock the thigh fixing sleeve and the shank fixing sleeve so that the thigh fixing sleeve and the shank fixing sleeve can stop rotating relatively, the muscle tension detection device is used for making contact with the thigh or the shank, the muscle tension detection device is electrically connected with the locking mechanism, and the muscle tension detection device can detect the tightness state of the muscle of the thigh or the shank. The thigh fixing sleeve and the shank fixing sleeve are locked by the locking mechanism, so that the thighs and the shanks of the patient are relatively fixed, and the risk of falling down is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rehabilitation training equipment, in particular to a leg rehabilitation training system. Background Art

[0002] Patients with knee joint problems often need to stay in bed for a long time. Due to long-term bed rest, the leg muscles of patients cannot be exercised, which will lead to leg muscle atrophy. Therefore, they need rehabilitation training before returning to normal life. The current rehabilitation training equipment is relatively simple. For patients with severe muscle atrophy, they often feel weak during the training process. For patients with poor mental state such as the elderly, they will become mentally confused. All of the above situations will lead to falls. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a leg rehabilitation training system that can provide hand support and leg fixation functions to reduce the risk of falling.

[0004] A leg rehabilitation training system according to an embodiment of the first aspect of the utility model includes an armrest mechanism and two leg support devices, the armrest mechanism is used for patients to hold on or lie on; the leg support device includes a thigh fixing sleeve, a calf fixing sleeve, a joint connection mechanism, a muscle tension detection device and a locking mechanism, the thigh fixing sleeve is used to be sleeved on the patient's thigh, the calf fixing sleeve is used to be sleeved on the patient's calf, the thigh fixing sleeve is rotatably connected to the calf fixing sleeve through the joint connection mechanism, the locking mechanism can lock the thigh fixing sleeve and the calf fixing sleeve so that the thigh fixing sleeve and the calf fixing sleeve stop relative rotation, the muscle tension detection device is used to contact the thigh or the calf, the muscle tension detection device is electrically connected to the locking mechanism, and the muscle tension detection device can detect the tightness of the thigh or the calf muscles so that the locking mechanism locks the thigh fixing sleeve and the calf fixing sleeve.

[0005] At least the following beneficial effects are achieved:

[0006] When the patient performs rehabilitation training, he first puts two leg support devices on his legs so that the muscle tension detection device contacts the thigh or the calf. Then the patient can stand up and walk. At this time, the muscles of the thigh or the calf are in an actively tensioned state, and the thigh fixing sleeve and the calf fixing sleeve can rotate relative to each other. When the patient has muscle relaxation due to mental confusion or inability to hold on, the muscle tension detection device detects the muscle relaxation and sends a trigger signal to the locking mechanism. The locking mechanism locks the thigh fixing sleeve and the calf fixing sleeve to relatively fix the thigh fixing sleeve and the calf fixing sleeve, thereby relatively fixing the patient's thigh and calf, preventing the patient from further bending his knees, thereby reducing the risk of falling.

[0007] When the patient tries to restore the standing posture, the thigh and calf muscles are tightened again, the muscle tension detection device detects the muscle tension and sends a recovery signal to the locking mechanism, and the locking mechanism unlocks the thigh fixing sleeve and the calf fixing sleeve, so that the thigh fixing sleeve and the calf fixing sleeve resume the relative rotation state, so that the patient can stand up. At the same time, the patient's hands can be grasped on the armrest mechanism, and the patient can stabilize the body and restore the standing posture with the help of the armrest mechanism.

[0008] According to some embodiments of the utility model, the thigh fixing sleeve is connected to a first telescopic adjustment rod, and the thigh fixing sleeve is connected to one end of the joint connection mechanism through the first telescopic adjustment rod; the calf fixing sleeve is connected to a second telescopic adjustment rod, and the calf fixing sleeve is connected to the other end of the joint connection mechanism through the second telescopic adjustment rod.

[0009] According to some embodiments of the utility model, the locking mechanism includes a brake disc, a brake pad and a first driving mechanism, one of the first telescopic adjustment rod and the second telescopic adjustment rod is connected to the brake disc, and the other is movably connected to the brake pad, the first driving mechanism is connected to the brake pad, and the first driving mechanism can drive the brake pad to press against the brake disc to lock the first telescopic adjustment rod and the second telescopic adjustment rod.

[0010] According to some embodiments of the present invention, the first driving mechanism is a linear motor.

[0011] According to some embodiments of the utility model, the locking mechanism includes a flange, a gear rod and a second driving mechanism, the flange is provided with a plurality of gear holes, the distances between all the gear holes and the center of the flange are equal, and all the gear holes are distributed in an arc shape, one of the first telescopic adjustment rod and the second telescopic adjustment rod is connected to the flange, and the other is movably connected to the gear rod, and the second driving mechanism is connected to the gear rod, and the second driving mechanism can drive the gear rod to insert into any of the gear holes to lock the first telescopic adjustment rod and the second telescopic adjustment rod.

[0012] According to some embodiments of the utility model, two adjacent shift holes are connected by a connecting groove, the diameter of the shift hole is larger than the diameter of the shift rod, the diameter of the shift rod is larger than the width of the connecting groove, and the shift hole is provided with a chamfer at the opening facing the shift rod.

[0013] According to some embodiments of the utility model, the thigh fixing sleeve includes a left fixing plate and a right fixing plate, the rear end of the left fixing plate and the rear end of the right fixing plate are connected by a connecting belt, the front end of the left fixing plate and the front end of the right fixing plate are connected by Velcro, or the front end of the left fixing plate and the front end of the right fixing plate are both provided with adjustment belts, and the two adjustment belts are connected by a Japanese buckle.

[0014] According to some embodiments of the present invention, a treadmill is further included, and the armrest mechanism is arranged on the treadmill.

[0015] According to some embodiments of the utility model, the armrest mechanism includes an armrest, two third telescopic adjustment rods, two swing arms and two first rotation drive mechanisms, the lower ends of the two third telescopic adjustment rods are respectively connected to the left and right sides of the treadmill, the two swing arms are respectively rotatably connected to the upper ends of the two third telescopic adjustment rods, the two ends of the armrest are respectively connected to the two swing arms, the two first rotation drive mechanisms are respectively arranged at the upper ends of the two third telescopic adjustment rods, and the two first rotation drive mechanisms can drive the two swing arms to swing backwards so that the armrest moves backward and decreases in height.

[0016] According to some embodiments of the utility model, the armrest mechanism also includes two second rotation drive mechanisms, the two ends of the armrest are respectively rotatably connected to the two swing arms, the two second rotation drive mechanisms are respectively arranged on the upper ends of two third telescopic adjustment rods, and the two second rotation drive mechanisms can drive the armrests to swing relative to the swing arms to keep the armrests in a horizontal state.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a structural schematic diagram of a leg rehabilitation training system according to an embodiment of the utility model;

[0020] Figure 2 This is one of the structural schematic diagrams of a leg support device of a leg rehabilitation training system according to an embodiment of the utility model;

[0021] Figure 3 This is a second structural schematic diagram of a leg support device of a leg rehabilitation training system according to an embodiment of the utility model;

[0022] Figure 4 This is a structural schematic diagram of a flange plate of a leg rehabilitation training system according to an embodiment of the utility model;

[0023] Figure Number:

[0024] Armrest mechanism 100, armrest 110, third telescopic adjustment rod 120, swing arm 130, first rotation drive mechanism 140, second rotation drive mechanism 150, leg support device 200, thigh fixing sleeve 210, first telescopic adjustment rod 211, left fixing plate 212, right fixing plate 213, calf fixing sleeve 220, second telescopic adjustment rod 221, joint connection mechanism 230, locking mechanism 240, brake disc 241, brake pad 242, first drive mechanism 243, flange 244, gear lever 245, second drive mechanism 246, limit groove 247, gear hole 300, treadmill 400. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figure 1 and Figure 2 The utility model discloses a leg rehabilitation training system, comprising an armrest mechanism 100 and two leg support devices 200, wherein the armrest mechanism 100 is used for a patient to hold on or lie down; the leg support device 200 comprises a thigh fixing sleeve 210, a calf fixing sleeve 220, a joint connection mechanism 230, a muscle tension detection device and a locking mechanism 240, wherein the thigh fixing sleeve 210 is used to be sleeved on the patient's thigh, and the calf fixing sleeve 220 is used to be sleeved on the patient's calf, and the thigh fixing sleeve 210 is rotatably connected with the calf fixing sleeve 220 through the joint connection mechanism 230, and the locking mechanism 240 can lock the thigh fixing sleeve 210 and the calf fixing sleeve 220 to stop the thigh fixing sleeve 210 and the calf fixing sleeve 220 from rotating relative to each other, and the muscle tension detection device is used to contact with the thigh or the calf, and the muscle tension detection device is electrically connected to the locking mechanism 240, and the muscle tension detection device can detect the tightness of the thigh or the calf muscle, so that the locking mechanism 240 locks the thigh fixing sleeve 210 and the calf fixing sleeve 220.

[0030] When the patient performs rehabilitation training, the two leg support devices 200 are first put on the legs so that the muscle tension detection device contacts the thigh or calf. Then the patient can stand up and walk. At this time, the thigh or calf muscles are in an actively tensioned state, and the thigh fixing sleeve 210 and the calf fixing sleeve 220 can rotate relative to each other. When the patient has muscle relaxation due to mental confusion or body inability to hold on, the muscle tension detection device detects the muscle relaxation and sends a trigger signal to the locking mechanism 240. The locking mechanism 240 locks the thigh fixing sleeve 210 and the calf fixing sleeve 220, and relatively fixes the thigh fixing sleeve 210 and the calf fixing sleeve 220, thereby relatively fixing the patient's thigh and calf, preventing the patient from further bending his knees, thereby reducing the risk of falling.

[0031] When the patient tries to restore the standing posture, the thigh and calf muscles are tightened again, and the muscle tension detection device detects the muscle tension and sends a recovery signal to the locking mechanism 240. The locking mechanism 240 unlocks the thigh fixing sleeve 210 and the calf fixing sleeve 220, so that the thigh fixing sleeve 210 and the calf fixing sleeve 220 resume the relative rotation state, so that the patient can stand up. At the same time, the patient's hands can be grasped on the armrest mechanism 100, and the patient can stabilize the body and restore the standing posture with the help of the armrest mechanism 100.

[0032] See also Figure 2 In some embodiments, the thigh fixing sleeve 210 is connected to a first telescopic adjustment rod 211, and the thigh fixing sleeve 210 is connected to one end of the joint connection mechanism 230 through the first telescopic adjustment rod 211, and the first telescopic adjustment rod 211 can adjust the distance between the thigh fixing sleeve 210 and the joint connection mechanism 230. The calf fixing sleeve 220 is connected to a second telescopic adjustment rod 221, and the calf fixing sleeve 220 is connected to the other end of the joint connection mechanism 230 through the second telescopic adjustment rod 221, and the second telescopic adjustment rod 221 can adjust the distance between the calf fixing sleeve 220 and the joint connection mechanism 230. In other words, the relative positions of the thigh fixing sleeve 210, the joint connection mechanism 230 and the calf fixing sleeve 220 can be adjusted to suit patients with different leg lengths and improve the comfort of the leg support device 200.

[0033] It is understandable that the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 are common components in the market, which can adjust and fix the length, and the specific structure of the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 is not redundantly introduced here. The joint connection mechanism 230 can be a pin shaft.

[0034] See also Figure 2 In some embodiments, the locking mechanism 240 includes a brake disc 241, a brake pad 242 and a first driving mechanism 243. One of the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 is connected to the brake disc 241, and the other is movably connected to the brake pad 242. The first driving mechanism 243 is connected to the brake pad 242, and the first driving mechanism 243 can drive the brake pad 242 to abut against the brake disc 241. When the first driving mechanism 243 drives the brake pad 242 away from the brake disc 241, the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 can rotate relative to each other, that is, the thigh fixing sleeve 210 and the calf fixing sleeve 220 can rotate relative to each other through the joint connection mechanism 230, and the patient can walk normally wearing the leg support device 200.

[0035] When the first driving mechanism 243 drives the brake pad 242 to press tightly against the brake disc 241, the relative positions of the brake pad 242 and the brake disc 241 are fixed, and the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 cannot rotate relative to each other, so as to lock the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221, so that the thigh fixing sleeve 210 and the calf fixing sleeve 220 are relatively fixed, and thus the patient's thigh and calf are relatively fixed.

[0036] In some embodiments, the first driving mechanism 243 is a linear motor, which is small in size and has a fast response speed, and the output end of the linear motor is connected to the brake pad 242. Of course, the first driving mechanism 243 can also be an electric push rod.

[0037] It can be understood that the first driving mechanism 243 is arranged on the outer side of the leg supporting device 200 relative to the leg. Since the first driving mechanism 243 has a certain volume, it will protrude from the first telescopic adjustment rod 211 or the second telescopic adjustment rod 221 or the joint connection mechanism 230, which can prevent the first driving mechanism 243 from interfering with the patient's walking.

[0038] See also Figure 3 In some embodiments, the locking mechanism 240 includes a flange 244, a lever 245, and a second driving mechanism 246. The flange 244 is provided with a plurality of lever holes 300. The distances between all lever holes 300 and the center of the flange 244 are equal. All lever holes 300 are distributed in an arc shape. One of the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 is connected to the flange 244, and the other is movably connected to the lever 245. The second driving mechanism 246 is connected to the lever 245, and the second driving mechanism 246 can drive the lever 245 to insert into any lever hole 300. When the second driving mechanism 246 drives the lever 245 away from the flange 244, the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 can rotate relative to each other, that is, the thigh fixing sleeve 210 and the calf fixing sleeve 220 can rotate relative to each other through the joint connection mechanism 230, and the patient can walk normally while wearing the leg support device 200.

[0039] When the second driving mechanism 246 drives the shift rod 245 to insert into any shift hole 300, since the second driving mechanism 246 and the shift rod 245 cannot rotate around the joint connection mechanism 230, the relative positions of the shift rod 245 and the flange 244 are fixed, so that the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 cannot rotate relative to each other, thereby locking the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221.

[0040] The second driving mechanism 246 may also be a linear motor. In this embodiment, the flange 244 is fixedly connected to the second telescopic adjustment rod 221, the second driving mechanism 246 is fixedly connected to the first telescopic adjustment rod 211, the output end of the second driving mechanism 246 is connected to one end of the gear rod 245, the gear rod 245 is slidably connected to the first telescopic adjustment rod 211, and the second driving mechanism 246 drives the gear rod 245 to slide on the first telescopic adjustment rod 211, so that the other end of the gear rod 245 is inserted into any gear hole 300 on the flange 244 or away from the flange 244.

[0041] See also Figure 3 and Figure 4 In some embodiments, two adjacent gear holes 300 are connected through a connecting groove, and the diameter of the gear rod 245 is greater than the width of the connecting groove, so as to prevent the gear rod 245 from sliding from one gear hole 300 into another gear hole 300 through the connecting groove, and ensure that the gear rod 245 locks the rotation of the flange 244. The two adjacent gear holes 300 are connected through the connecting groove, so that the center distance between the two adjacent gear holes 300 can be shortened. When the gear rod 245 is pushed out of one gear hole 300 and enters an adjacent gear hole 300, the rotation angle of the flange 244 and the relative rotation angle of the first telescopic adjustment rod 211 and the second telescopic adjustment rod 221 are smaller, so that the locking mechanism 240 can lock the thigh fixing sleeve 210 and the calf fixing sleeve 220 more accurately and timely, so that the thigh fixing sleeve 210 and the calf fixing sleeve 220 stop relative rotation.

[0042] The diameter of the gear hole 300 is greater than the diameter of the gear rod 245, so that the gear rod 245 can be easily inserted into the gear hole 300. The gear hole 300 is chamfered at the opening toward the gear rod 245, so that the gear rod 245 can be aligned and inserted into the gear hole 300.

[0043] An arc-shaped limit groove 247 is provided on the brake disc 241 or the flange 244, and a limit block is provided at the lower end of the first telescopic adjustment rod 211. The limit block extends into the limit groove 247, and the limit block moves along an arc-shaped trajectory in the limit groove 247. The limit groove 247 serves to limit the rotation angle of the limit block and the first telescopic adjustment rod 211 relative to the second telescopic adjustment rod 221.

[0044] See also Figure 2In some embodiments, the thigh fixing sleeve 210 includes a left fixing plate 212 and a right fixing plate 213, the rear end of the left fixing plate 212 and the rear end of the right fixing plate 213 are connected by a connecting belt, and the front end of the left fixing plate 212 and the front end of the right fixing plate 213 are connected by a Velcro, and the left fixing plate 212 and the right fixing plate 213 can be conveniently and quickly connected together by the Velcro, so that the thigh fixing sleeve 210 can be conveniently and quickly put on and take off, and the Velcro can be used to adjust the tightness of the left fixing plate 212 and the right fixing plate 213 around the thigh, so that the thigh fixing sleeve 210 can be suitable for the needs of legs of different sizes.

[0045] Alternatively, the front ends of the left fixing plate 212 and the right fixing plate 213 are both provided with adjustment belts, and the two adjustment belts are connected by a Japanese-shaped buckle. The left fixing plate 212 and the right fixing plate 213 can be conveniently and quickly connected together through the adjustment belt and the Japanese-shaped buckle, so that the thigh fixing sleeve 210 can be conveniently and quickly put on and take off. The tightness of the left fixing plate 212 and the right fixing plate 213 wrapped around the thigh can be adjusted through the adjustment belt and the Japanese-shaped buckle, so that the thigh fixing sleeve 210 can be suitable for the needs of legs of different sizes.

[0046] It is understandable that the structure of the calf fixing sleeve 220 is the same as or similar to that of the thigh fixing sleeve 210 , and a redundant introduction is not given here.

[0047] See also Figure 1 In some embodiments, the leg rehabilitation training system further includes a treadmill 400, and the armrest mechanism 100 is disposed on the treadmill 400, and the patient can perform rehabilitation training on the treadmill 400. The treadmill 400 is flexibly arranged in a position to meet the patient's needs for different environments.

[0048] In some of the embodiments, the armrest mechanism 100 includes an armrest 110, two third telescopic adjustment rods 120, two swing arms 130 and two first rotation drive mechanisms 140, the lower ends of the two third telescopic adjustment rods 120 are respectively connected to the left and right sides of the treadmill 400, the two swing arms 130 are respectively rotatably connected to the upper ends of the two third telescopic adjustment rods 120, the two ends of the armrest 110 are respectively connected to the two swing arms 130, the two first rotation drive mechanisms 140 are respectively arranged at the upper ends of the two third telescopic adjustment rods 120, and the two first rotation drive mechanisms 140 can drive the two swing arms 130 to swing backwards so that the armrest 110 moves backward and decreases in height.

[0049] After the handrail 110 moves backward and lowers in height, the patient can sit on the bed or chair and directly grasp the handrail 110, and then the handrail 110 is reset. The patient can easily stand on the treadmill 400 with the help of the handrail 110, which can reduce the assistance of rehabilitation personnel and is particularly suitable for seriously ill patients.

[0050] It can be understood that the upper end of the third telescopic adjustment rod 120 is connected to the lower end of the swing arm 130 through the first rotating shaft, the first rotation drive mechanism 140 is connected to the lower end of the swing arm 130 through the first transmission system, and the first rotation drive mechanism 140 drives the swing arm 130 to rotate around the upper end of the third telescopic adjustment rod 120. Further, the first transmission system includes a first driving gear and a first driven gear that are meshed with each other, the first driving gear is arranged at the output end of the first rotation drive mechanism 140, and the first driven gear is arranged on the first rotating shaft. The first rotation drive mechanism 140 can be a first motor. The third telescopic adjustment rod 120 is a common component, which has the functions of adjustable degree and locking length. The third telescopic adjustment rod 120 can adjust the height of the entire armrest mechanism 100 so that the leg rehabilitation training system is suitable for patients of different heights.

[0051] In some of the embodiments, the armrest mechanism 100 also includes two second rotation drive mechanisms 150, and the two ends of the armrest 110 are rotatably connected to the two swing arms 130, respectively. The two second rotation drive mechanisms 150 are respectively arranged on the upper ends of the two third telescopic adjustment rods 120, and the two second rotation drive mechanisms 150 can drive the armrest 110 to swing relative to the swing arm 130 to keep the armrest 110 in a horizontal state.

[0052] It can be understood that the lower end of the swing arm 130 is connected to one end of the armrest 110 through the second rotating shaft, the second rotation drive mechanism 150 is connected to the armrest 110 through the second transmission system, and the second rotation drive mechanism 150 drives the armrest 110 to rotate around the upper end of the swing arm 130. Further, the second transmission system includes a second driving gear and a second driven gear meshing with each other, the second driving gear is arranged at the output end of the second rotation drive mechanism 150, and the second driven gear is arranged on the second rotating shaft. The second rotation drive mechanism 150 can be a second motor.

[0053] The armrest 110 is U-shaped so that the patient can hold the armrest 110, and the armrest 110 plays a certain protective role. A soft pillow is arranged on the armrest 110, and the soft pillow is U-shaped. The patient's hand directly grasps the soft pillow, which improves comfort and prevents the patient from being bumped.

[0054] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A leg rehabilitation training system, characterized in that: include: An armrest mechanism, used for patients to hold on to or lie prone; Two leg support devices, the leg support devices include a thigh fixing sleeve, a calf fixing sleeve, a joint connection mechanism, a muscle tension detection device and a locking mechanism, the thigh fixing sleeve is used to be covered on the patient's thigh, the calf fixing sleeve is used to be covered on the patient's calf, the thigh fixing sleeve is rotatably connected with the calf fixing sleeve through the joint connection mechanism, the locking mechanism can lock the thigh fixing sleeve and the calf fixing sleeve to stop the thigh fixing sleeve and the calf fixing sleeve from rotating relative to each other, the muscle tension detection device is used to contact the thigh or the calf, the muscle tension detection device is electrically connected to the locking mechanism, the muscle tension detection device can detect the tightness of the thigh or the calf muscles, so that the locking mechanism locks the thigh fixing sleeve and the calf fixing sleeve.

2. A leg rehabilitation training system according to claim 1, characterized in that: The thigh fixing sleeve is connected to a first telescopic adjustment rod, and the thigh fixing sleeve is connected to one end of the joint connection mechanism through the first telescopic adjustment rod. The calf fixing sleeve is connected to a second telescopic adjustment rod, and the calf fixing sleeve is connected to the other end of the joint connection mechanism through the second telescopic adjustment rod.

3. A leg rehabilitation training system according to claim 2, characterized in that: The locking mechanism includes a brake disc, a brake pad and a first driving mechanism, one of the first telescopic adjustment rod and the second telescopic adjustment rod is connected to the brake disc, and the other is movably connected to the brake pad, and the first driving mechanism is connected to the brake pad. The first driving mechanism can drive the brake pad to press against the brake disc to lock the first telescopic adjustment rod and the second telescopic adjustment rod.

4. A leg rehabilitation training system according to claim 3, characterized in that: The first driving mechanism is a linear motor.

5. A leg rehabilitation training system according to claim 2, characterized in that: The locking mechanism includes a flange, a shift rod and a second driving mechanism. The flange is provided with a plurality of shift holes. The distances between all the shift holes and the center of the flange are equal. All the shift holes are distributed in an arc shape. One of the first telescopic adjustment rod and the second telescopic adjustment rod is connected to the flange, and the other is movably connected to the shift rod. The second driving mechanism is connected to the shift rod. The second driving mechanism can drive the shift rod to insert into any of the shift holes to lock the first telescopic adjustment rod and the second telescopic adjustment rod.

6. A leg rehabilitation training system according to claim 5, characterized in that: Two adjacent shift holes are connected through a connecting groove, the diameter of the shift hole is larger than the diameter of the shift rod, the diameter of the shift rod is larger than the width of the connecting groove, and the opening of the shift hole toward the shift rod is chamfered.

7. A leg rehabilitation training system according to claim 1, characterized in that: The thigh fixing sleeve comprises a left fixing plate and a right fixing plate, the rear end of the left fixing plate and the rear end of the right fixing plate are connected by a connecting belt, the front end of the left fixing plate and the front end of the right fixing plate are connected by a Velcro, or the front end of the left fixing plate and the front end of the right fixing plate are both provided with an adjustment belt, and the two adjustment belts are connected by a Japanese buckle.

8. A leg rehabilitation training system according to claim 1, characterized in that: Also included is a treadmill, and the armrest mechanism is arranged on the treadmill.

9. A leg rehabilitation training system according to claim 8, characterized in that: The armrest mechanism includes an armrest, two third telescopic adjustment rods, two swing arms and two first rotation drive mechanisms, the lower ends of the two third telescopic adjustment rods are respectively connected to the left and right sides of the treadmill, the two swing arms are respectively rotatably connected to the upper ends of the two third telescopic adjustment rods, the two ends of the armrest are respectively connected to the two swing arms, the two first rotation drive mechanisms are respectively arranged at the upper ends of the two third telescopic adjustment rods, and the two first rotation drive mechanisms can drive the two swing arms to swing backwards so that the armrest moves backwards and decreases in height.

10. A leg rehabilitation training system according to claim 9, characterized in that: The armrest mechanism also includes two second rotation drive mechanisms, the two ends of the armrest are respectively rotatably connected to the two swing arms, the two second rotation drive mechanisms are respectively arranged on the upper ends of two third telescopic adjustment rods, and the two second rotation drive mechanisms can drive the armrest to swing relative to the swing arm to keep the armrest in a horizontal state.

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