Children ankle joint rehabilitation device with adjusting mechanism

Abstract

The invention discloses a child ankle joint rehabilitation device with an adjusting mechanism, belongs to the field of rehabilitation equipment, and aims to solve the problems that an existing rehabilitation device is generally limited to single-plane rotation, cannot simulate the composite motion of ankles and is limited in rehabilitation effect, the child ankle joint rehabilitation device comprises a base, and a multi-degree-of-freedom rotating mechanism is fixedly connected to the upper end face of the base; by means of the action of friction force between the foot sole and the free rotating assembly, the free rotating assembly is pushed to rotate in a reciprocating mode at the fixed position, and when the damping adjusting assembly is adjusted to the proper position, the friction force of the upper end of the damping adjusting assembly to the lower end of the free rotating assembly is adjusted to the proper position, so that the free rotating assembly is driven to rotate in a reciprocating mode. By means of the multi-degree-of-freedom rotating mechanism, the free rotating assembly bears resistance, namely friction force borne by the lower end of the free rotating assembly in the rotating process of the fixed position, multi-angle exercise training, including inward and outward turning, dorsiflexion, plantar flexion and other composite actions, of ankles is achieved through the multi-degree-of-freedom rotating mechanism, and the actual rehabilitation requirement is better met.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation equipment technology, specifically to a children's ankle joint rehabilitation device equipped with an adjustment mechanism. Background Technology

[0002] The ankle is the smallest joint at the end of the three major joints of the lower limb. Although the ankle is directly connected to the foot, the strength of the surrounding muscles is not as strong as that of the hip and knee joints. The main range of motion of the ankle includes dorsiflexion, plantarflexion, eversion, inversion and rotation. Especially in the push-off phase of jumping, the ankle joint plays an important role, and its strength directly determines the stability of the support when the movement is completed. Current rehabilitation devices are usually limited to single-plane rotation and cannot simulate the complex movements of the ankle, resulting in limited rehabilitation effects.

[0003] To address the above issues, a children's ankle joint rehabilitation device with an adjustment mechanism is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a children's ankle joint rehabilitation device with an adjustment mechanism. By using this device, the problem mentioned in the background art is that current rehabilitation devices are usually limited to single-plane rotation, cannot simulate the compound movement of the ankle, and have limited rehabilitation effects.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A pediatric ankle joint rehabilitation device with an adjustment mechanism is provided, comprising a base, two multi-degree-of-freedom rotational mechanisms connected to the base, the multi-degree-of-freedom rotational mechanisms being fixedly connected to the upper surface of the base, a damping adjustment mechanism being provided directly below the multi-degree-of-freedom rotational mechanisms, the damping adjustment mechanism being fixedly connected to the base and coaxially arranged with the multi-degree-of-freedom rotational mechanisms, the multi-degree-of-freedom rotational mechanisms including a free rotation component and a tilt adjustment component, the tilt adjustment component being fixedly connected to the upper surface of the base, the free rotation component being disposed on the tilt adjustment component, the damping adjustment mechanism including a damping adjustment component, the damping adjustment component being fixedly connected to the lower surface of the base, and a dynamic stabilizing component being connected to the damping adjustment component.

[0006] Furthermore, both tilt adjustment components include a spherical ring, the inner and outer surfaces of which are spherical. The spherical ring is fixedly connected to the upper surface of the base. A limiting ring is fixedly connected to the inner surface of the spherical ring, and the inner surface of the limiting ring is spherical and has a sliding groove.

[0007] Furthermore, a spherical ring two is provided on the inner surface of the limiting ring. The inner and outer surfaces of the spherical ring two are both spherical. A slider one is fixedly connected to the outer surface of the spherical ring two. The slider one is slidably connected in the groove. A plurality of annular grooves are opened on the inner surface of the spherical ring two. The plurality of annular grooves are arranged longitudinally.

[0008] Furthermore, the free-rotating component includes a sphere, which is rotatably connected within a spherical ring, and a protrusion is slidably connected to the sphere, the protrusion sliding along the direction of the sphere's center.

[0009] Furthermore, the free-rotating assembly also includes a connecting shaft, which is fixedly connected to the ball. A foot pedal is fixedly connected to the upper end of the connecting shaft, and a damping disc is fixedly connected to the lower end of the connecting shaft.

[0010] Furthermore, the damping adjustment assembly includes several guide rods, which are perpendicular to the lower end face of the base, and the lower ends of the guide rods are fixedly connected to the lower end face of the base. The guide rods are arranged in a ring, and a pressing plate is slidably connected to the guide rods.

[0011] Furthermore, the extrusion plate is slidably connected to several guide rods, the lower end face of the extrusion plate is fixedly connected to one end of a damping spring, the other end of the damping spring is fixedly connected to the upper end face of a fixed damping plate, and the fixed damping plate is slidably connected to several guide rods.

[0012] Furthermore, the lower end face of the fixed damping plate is fixedly connected to one end of the electric push rod, and the other end of the electric push rod is fixedly connected to the lower end face of the base.

[0013] Furthermore, the dynamic stabilization component includes an acceleration sensor, which is fixedly connected to the extrusion plate, and a cylinder is also fixedly connected to the extrusion plate.

[0014] Furthermore, a serrated block is fixedly connected to the output end of the cylinder, and a serrated strip is vertically arranged on the base. The serrated strip is fixedly connected to the base, and the position of the serrated strip corresponds to that of the serrated block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the friction between the foot and the free-rotating component, the free-rotating component is driven to rotate back and forth in a fixed position. During the rotation in the fixed position, the lower end of the free-rotating component abuts against the upper end of the damping adjustment component. When the damping adjustment component is adjusted to an appropriate position, the friction between its upper end and the lower end of the free-rotating component causes the free-rotating component to experience resistance during the rotation in the fixed position. That is, the friction experienced by the lower end of the free-rotating component, through the multi-degree-of-freedom rotation mechanism, enables multi-angle movement training of the ankle, including compound movements such as inversion / exversion, dorsiflexion, and plantarflexion, which is more in line with actual rehabilitation needs.

[0016] 2. The sphere can rotate freely at any angle within the second spherical ring. Initially, the plane of the sphere is on the same plane as the second spherical ring, the limiting ring, and the first spherical ring. When the angle between the plane of the foot and the lower leg changes, the foot pushes the sphere to rotate, causing the original plane of the sphere to form a certain angle with the plane of the second spherical ring, the limiting ring, and the first spherical ring. During this process, the protrusion slides downward within the second spherical ring until it slides into the next annular groove. A spring is connected to the protrusion. During this process, when the protrusion is squeezed, the spring contracts. When the protrusion slides into the next annular groove, the spring returns to its original position. At this point, the sphere no longer deflects, i.e., the sphere is locked. When the foot pushes the sphere to rotate, the rotation of the sphere drives the second spherical ring to rotate relative to the first limiting ring. The angle is fixed through the mechanical structure of the annular groove and the protrusion, avoiding secondary injuries caused by uncontrolled angle during training.

[0017] 3. The fixed damping plate is moved upward by the electric push rod. In the initial state, the compression plate is located at the top of the guide rod and cannot slide upward. By pushing the fixed damping plate upward, the fixed damping plate compresses the damping spring, thereby increasing the squeezing force of the compression plate on the damping disc. The linkage design of the electric push rod, damping spring and compression plate realizes stepless adjustment of damping force to adapt to the resistance requirements of different rehabilitation stages.

[0018] 4. The downward acceleration of the extrusion plate is monitored by an acceleration sensor. When the downward acceleration of the extrusion plate exceeds the set value, it is considered that the foot pedal rotation speed is too fast and it is easy to cause secondary injury. At this time, the cylinder extends. When the cylinder extends, it pushes the sawtooth block to move rapidly towards the sawtooth strip until it is in contact with the sawtooth strip, thereby achieving the purpose of preventing the extrusion plate from moving downward rapidly. When the speed is too fast, the cylinder and sawtooth block will brake in an emergency to prevent injury caused by sudden action.

[0019] 5. In this state, the tilted free-rotating component can be pushed by the sole of the foot to adjust the tilt angle of the component's center plane, thereby exercising the ankle and aiding in ankle rehabilitation. Alternatively, when the free-rotating component is tilted, the friction between the sole of the foot and the component can be used to push the component to rotate back and forth in a fixed position, supporting planar rotation training at a fixed angle and multi-dimensional exercise training in a tilted state, covering a full range of rehabilitation scenarios.

[0020] 6. The sphere can rotate freely at any angle within the second spherical ring. In its initial position, the plane on which the sphere is located is on the same plane as the second spherical ring, the limiting ring, and the first spherical ring. When the angle between the plane on which the foot is located and the lower leg changes, the foot pushes the sphere to rotate, causing the original plane on which the sphere is located to form a certain angle with the plane on which the second spherical ring, the limiting ring, and the first spherical ring are located. During this process, the protrusion slides downward within the second spherical ring until it slides into the next annular groove. A spring is connected to the protrusion. During this process, when the protrusion is squeezed, the spring contracts. When the protrusion slides into the next annular groove, the spring returns to its original position. At this time, the sphere no longer deflects, that is, the sphere is locked. When the foot pushes the sphere to rotate, the rotation of the sphere pushes the second spherical ring to rotate relative to the first limiting ring. The nested structure of the first spherical ring, the limiting ring, and the second spherical ring ensures rotational stability and avoids component misalignment or jamming. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a cross-sectional view of the overall three-dimensional structure of the present invention; Figure 3 This is a front view of the overall three-dimensional structure of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the limiting ring of the present invention; Figure 5 This is a cross-sectional view of the integral three-dimensional structure of the spherical ring of the present invention; Figure 6 For the present invention Figure 2 Enlarged view of region A in the middle; Figure 7 For the present invention Figure 4 Enlarged diagram of region C in the middle; Figure 8 For the present invention Figure 5 Enlarged schematic diagram of region D in the middle; Figure 9 For the present invention Figure 3 Enlarged schematic diagram of region E in the middle; Figure 10 For the present invention Figure 2 Enlarged view of region B in the middle; Figure 11This is a flowchart illustrating the dynamic stabilization component of the present invention.

[0022] In the picture: 1. Base; 2. Multi-degree-of-freedom rotation mechanism; 21. Free rotation component; 211. Sphere; 212. Protrusion; 213. Connecting shaft; 214. Foot pedal; 215. Damping disc; 22. Tilt adjustment component; 221. Spherical ring one; 222. Limiting ring; 223. Slide groove; 224. Spherical ring two; 225. Slider one; 226. Annular groove; 3. Damping adjustment mechanism; 31. Damping adjustment assembly; 311. Guide rod; 312. Extrusion plate; 313. Damping spring; 314. Fixed damping plate; 315. Electric push rod; 32. Dynamic stabilization assembly; 321. Acceleration sensor; 322. Cylinder; 323. Sawtooth block; 324. Sawtooth strip. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Reference Figures 1-3 and Figures 10-11 As shown, a pediatric ankle joint rehabilitation device with an adjustment mechanism includes a base 1. Two multi-degree-of-freedom rotation mechanisms 2 are connected to the base 1 and fixedly connected to the upper surface of the base 1. A damping adjustment mechanism 3 is provided directly below the multi-degree-of-freedom rotation mechanism 2. The damping adjustment mechanism 3 is fixedly connected to the base 1 and coaxially arranged with the multi-degree-of-freedom rotation mechanism 2. The multi-degree-of-freedom rotation mechanism 2 includes a free rotation component 21 and a tilt adjustment component 22. The tilt adjustment component 22 is fixedly connected to the upper surface of the base 1 and the free rotation component 21 is disposed on the tilt adjustment component 22. The damping adjustment mechanism 3 includes a damping adjustment component 31, which is fixedly connected to the lower surface of the base 1. A dynamic stabilizing component 32 is connected to the damping adjustment component 31.

[0025] When performing ankle rehabilitation training, first adjust the damping adjustment component 31 according to the degree of your ankle injury so that the damping of the free rotation component 21 during rotation can be accepted by the injured ankle. After the damping adjustment component 31 is adjusted, place both feet on the top of the free rotation component 21, with the soles of both feet in contact with the top surface of the free rotation component 21. Hold the armrest on the base 1 with both hands. Depending on the degree of your ankle injury, you can push the free rotation component 21 outward to an angle suitable for your current situation. At the same time, the angle between the plane where the soles of the feet are located and the lower legs becomes smaller, and the tilt adjustment component 22 locks the free rotation component 21. In this state, the foot can push the tilted free-rotating component 21 to rotate in the plane of the center of the tilt angle adjustment component 22, thereby exercising the ankle and helping the ankle to recover. Alternatively, when the free-rotating component 21 is tilted, the foot can push the free-rotating component 21 to rotate back and forth in a fixed position through the friction between the foot and the free-rotating component 21. During the rotation in the fixed position, the lower end of the free-rotating component 21 abuts against the upper end of the damping adjustment component 31. When the damping adjustment component 31 is adjusted to an appropriate position, the friction between its upper end and the lower end of the free-rotating component 21 causes the free-rotating component 21 to be subjected to resistance during the rotation in the fixed position, i.e., the friction force on the lower end of the free-rotating component 21. This method creates resistance by rotating the foot back and forth in a fixed position, thereby exercising the ankle and aiding in its recovery. Due to ankle injuries, individuals may not be able to control the speed at which the foot pushes the free-rotating component 21 outward, which can easily lead to secondary ankle injuries. Therefore, the dynamic stabilizing component 32 can monitor the deflection speed of the free-rotating component 21. When the deflection speed is too fast, i.e., the speed at which the upper end of the damping adjustment component 31 moves downward too quickly, the dynamic stabilizing component 32 will activate and lock the upper end of the damping adjustment component 31 to prevent secondary ankle injuries.

[0026] Reference Figures 4-5 and Figures 7-8 As shown, both tilt adjustment components 22 include a spherical ring 221. The inner and outer surfaces of the spherical ring 221 are spherical. The spherical ring 221 is fixedly connected to the upper surface of the base 1. A limiting ring 222 is fixedly connected to the inner surface of the spherical ring 221. The inner surface of the limiting ring 222 is spherical and has a groove 223. This arrangement makes the spherical ring 221 and the limiting ring 222 stable relative to the base 1.

[0027] A spherical ring 224 is provided on the inner surface of the limiting ring 222. Both the inner and outer surfaces of the spherical ring 224 are spherical. A slider 225 is fixedly connected to the outer surface of the spherical ring 224. The slider 225 is slidably connected in the groove 223. Several annular grooves 226 are formed on the inner surface of the spherical ring 224, and the annular grooves 226 are arranged longitudinally. When the spherical ring 224 rotates, it drives the slider 225 to slide in the annular grooves 226. The spherical ring 224, the limiting ring 222, and the spherical ring 221 are always on the same plane.

[0028] The free-rotating component 21 includes a sphere 211, which is rotatably connected within a second spherical ring 224. A protrusion 212 is slidably connected to the sphere 211, and the protrusion 212 slides along the direction of the sphere's center. The sphere 211 can rotate freely at any angle within the second spherical ring 224. In its initial position, the plane containing the sphere 211 is on the same plane as the second spherical ring 224, the limiting ring 222, and the first spherical ring 221. When the angle between the plane of the foot and the lower leg changes, the foot pushes the ball 211 to rotate, causing the original plane of the ball 211 to form a certain angle with the plane of the second spherical ring 224, the limiting ring 222, and the first spherical ring 221. During this process, the protrusion 212 slides downward within the second spherical ring 224 until it slides into the next annular groove 226. A spring is connected to the protrusion 212. During this process, when the protrusion 212 is compressed, the spring contracts. After 12 slides into the next annular groove 226, the spring returns to its original position. At this time, the ball 211 no longer deflects, that is, the ball 211 is locked. When the patient is ready to train and stands on the foot pedal 214 with both feet, the support of the damping plate 215 by the compression plate 312 prevents the ball from triggering the above process due to gravity without pushing the foot pedal 214 with force. When the ball 211 is rotated by the ball, the rotation of the ball 211 drives the spherical ring 224 to rotate relative to the limiting ring 222.

[0029] The free-rotating assembly 21 also includes a connecting shaft 213, which is fixedly connected to the ball 211. A foot pedal 214 is fixedly connected to the upper end of the connecting shaft 213, and a damping disc 215 is fixedly connected to the lower end of the connecting shaft 213.

[0030] When the sole of the foot rests on the surface of the foot pedal 214, and the angle between the plane of the foot and the lower leg changes, the sole of the foot pushes the foot pedal 214 to deflect, which in turn pushes the connecting shaft 213 and the ball 211 to deflect together. This causes the original plane of the ball 211 to form a certain angle with the plane of the second spherical ring 224, the limiting ring 222, and the first spherical ring 221. After the ball 211 is locked, when the sole of the foot pushes the foot pedal 214 to reciprocate around the axis of the connecting shaft 213, the reciprocating rotation of the ball 211 pushes the second spherical ring 224 to reciprocate relative to the limiting ring 222, which in turn causes the damping disc 215 to reciprocate.

[0031] Reference Figure 9 As shown, the damping adjustment assembly 31 includes several guide rods 311, which are perpendicular to the lower end face of the base 1. The lower ends of the guide rods 311 are fixedly connected to the lower end face of the base 1. The guide rods 311 are arranged in a ring, and a pressing plate 312 is slidably connected to the guide rods 311.

[0032] The pressing plate 312 is moved up and down by adjusting the pressing plate 312. By adjusting the distance the pressing plate 312 moves upward, the pressing force of the pressing plate 312 on the damping disk 215 is adjusted, thereby adjusting the resistance encountered by the damping disk 215 when it rotates. The ball 211 is rotated by the foot, causing the original plane of the ball 211 to form a certain angle with the plane of the second spherical ring 224, the limiting ring 222, and the first spherical ring 221. During this process, the protrusion 212 slides downward within the second spherical ring 224 until it slides into the next annular groove 226. A spring is connected to the protrusion 212. During this process, when the protrusion 212 is compressed, the spring contracts. When the protrusion 212 slides into the next annular groove 226, the spring returns to its original position. At this time, the ball... When 211 stops deflecting, i.e., the ball 211 is locked, when the patient is ready to train and stands on the foot pedal 214, the support of the damping disc 215 by the compression plate 312 prevents the foot from triggering the above process due to gravity without pushing the foot pedal 214. When the foot pushes the ball 211 to rotate, the rotation of the ball 211 pushes the spherical ring 224 to rotate relative to the limiting ring 222. At the same time, the damping disc 215 rotates, causing friction between the damping disc 215 and the compression plate 312.

[0033] The extrusion plate 312 is slidably connected to several guide rods 311. The lower end face of the extrusion plate 312 is fixedly connected to one end of the damping spring 313, and the other end of the damping spring 313 is fixedly connected to the upper end face of the fixed damping plate 314. The fixed damping plate 314 is slidably connected to several guide rods 311. In the initial state, the extrusion plate 312 is located at the top of the guide rods 311 and cannot slide upwards. By pushing the fixed damping plate 314 upwards, the fixed damping plate 314 compresses the damping spring 313, thereby increasing the extrusion force of the extrusion plate 312 on the damping disc 215. The free rotation assembly 21 also includes a connecting shaft 213, which is fixedly connected to the ball 211. The upper end of the connecting shaft 213 is fixedly connected to the foot pedal 214, and the lower end of the connecting shaft 213 is fixedly connected to the damping disc 215. The foot rests on the surface of the foot pedal 214. When the angle between the plane of the foot and the lower leg changes, the foot pushes the foot pedal 214 to deflect, which in turn pushes the connecting shaft 213 and the ball 211 to deflect together. This causes the original plane of the ball 211 to form a certain angle with the plane of the second spherical ring 224, the limiting ring 222, and the first spherical ring 221. After the ball 211 is locked, when the foot pushes the foot pedal 214 to reciprocate around the axis of the connecting shaft 213, the reciprocating rotation of the ball 211 pushes the second spherical ring 224 to reciprocate relative to the limiting ring 222, which in turn causes the damping disc 215 to reciprocate. When the damping disc 215 reciprocates, the squeezing action of the squeezing plate 312 causes it to generate friction. The magnitude of the resistance to its rotation depends on the magnitude of the friction, that is, the squeezing force of the squeezing plate 312.

[0034] The lower end face of the fixed damping plate 314 is fixedly connected to one end of the electric push rod 315, and the other end of the electric push rod 315 is fixedly connected to the lower end face of the base 1. The fixed damping plate 314 is pushed upwards by the electric push rod 315. Since the compression plate 312 is initially located at the top of the guide rod 311 and is limited by the guide rod 311 to move upwards, the damping spring 313 is compressed when the fixed damping plate 314 moves upwards. In this situation, if the patient wants to perform rehabilitation training, they can increase the appropriate training intensity by pushing the foot pedal 214 to rotate it at an angle, adapting to patients in different rehabilitation stages.

[0035] Reference Figure 6 As shown, the dynamic stabilization component 32 includes an acceleration sensor 321, which is fixedly connected to the extrusion plate 312. A cylinder 322 is also fixedly connected to the extrusion plate 312.

[0036] When the pedal 214 deflects too quickly due to poor force control after an ankle injury, the damping disc 215 deflects rapidly, pushing the compression plate 312 downwards quickly, resulting in a large acceleration. The acceleration sensor 321 monitors the downward acceleration of the compression plate 312. When the downward acceleration of the compression plate 312 exceeds a set value, it is considered that the pedal 214 deflects too quickly. The calibration process of the acceleration sensor 321 includes two parts: static calibration and dynamic calibration. First, the initial output value of the sensor is detected in a horizontal, stationary state to correct the zero-point offset. Then, a known acceleration is applied to test the sensitivity, and the input and output curves are adjusted to ensure measurement accuracy. After calibration, a safety threshold needs to be set, and the ability of the dynamic stabilization component 32 to trigger braking in time is verified by simulating rapid downward pressure. Regular maintenance and recording of calibration data ensure that the sensor accurately monitors acceleration during rehabilitation training, preventing secondary injuries. At this time, the cylinder 322 extends.

[0037] A sawtooth block 323 is fixedly connected to the output end of cylinder 322, and a sawtooth strip 324 is vertically arranged on the base 1. The sawtooth strip 324 is fixedly connected to the base 1, and the sawtooth strip 324 corresponds to the position of the sawtooth block 323.

[0038] When the cylinder 322 extends, it pushes the sawtooth block 323 to move rapidly toward the sawtooth strip 324 until it fits against the sawtooth strip 324, thereby preventing the extrusion plate 312 from moving downward rapidly and avoiding secondary injury.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pediatric ankle joint rehabilitation device equipped with an adjustment mechanism, characterized in that: The system includes a base (1), on which two multi-degree-of-freedom rotation mechanisms (2) are connected. The multi-degree-of-freedom rotation mechanisms (2) are fixedly connected to the upper surface of the base (1). A damping adjustment mechanism (3) is provided directly below the multi-degree-of-freedom rotation mechanism (2). The damping adjustment mechanism (3) is fixedly connected to the base (1) and coaxially arranged with the multi-degree-of-freedom rotation mechanism (2). The multi-degree-of-freedom rotation mechanism (2) includes a free rotation component (21) and a tilt adjustment component (22). The tilt adjustment component (22) is fixedly connected to the upper surface of the base (1). The free rotation component (21) is arranged on the tilt adjustment component (22). The damping adjustment mechanism (3) includes a damping adjustment component (31). The damping adjustment component (31) is fixedly connected to the lower surface of the base (1). A dynamic stabilizing component (32) is connected to the damping adjustment component (31).

2. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 1, characterized in that: Both tilt adjustment components (22) include a spherical ring (221), the inner and outer surfaces of which are spherical. The spherical ring (221) is fixedly connected to the upper surface of the base (1). A limiting ring (222) is fixedly connected to the inner surface of the spherical ring (221). The inner surface of the limiting ring (222) is spherical and has a groove (223).

3. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 2, characterized in that: The inner surface of the limiting ring (222) is provided with a spherical ring two (224). The inner and outer surfaces of the spherical ring two (224) are both spherical. The outer surface of the spherical ring two (224) is fixedly connected to a slider one (225). The slider one (225) is slidably connected in the groove (223). The inner surface of the spherical ring two (224) is provided with a plurality of annular grooves (226). The plurality of annular grooves (226) are arranged longitudinally.

4. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 3, characterized in that: The free-rotating component (21) includes a sphere (211) which is rotatably connected inside a spherical ring (224). A protrusion (212) is slidably connected on the sphere (211) and slides along the direction of the center of the sphere.

5. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 4, characterized in that: The free-rotating assembly (21) also includes a connecting shaft (213), which is fixedly connected to the ball (211). A foot pedal (214) is fixedly connected to the upper end of the connecting shaft (213), and a damping disc (215) is fixedly connected to the lower end of the connecting shaft (213).

6. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 5, characterized in that: The damping adjustment assembly (31) includes a plurality of guide rods (311), which are perpendicular to the lower end face of the base (1). The lower ends of the plurality of guide rods (311) are fixedly connected to the lower end face of the base (1). The plurality of guide rods (311) are arranged in a ring, and a pressing plate (312) is slidably connected to the plurality of guide rods (311).

7. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 6, characterized in that: The extrusion plate (312) is slidably connected to a plurality of guide rods (311). The lower end face of the extrusion plate (312) is fixedly connected to one end of the damping spring (313). The other end of the damping spring (313) is fixedly connected to the upper end face of the fixed damping plate (314). The fixed damping plate (314) is slidably connected to a plurality of the guide rods (311).

8. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 7, characterized in that: The lower end face of the fixed damping plate (314) is fixedly connected to one end of the electric push rod (315), and the other end of the electric push rod (315) is fixedly connected to the lower end face of the base (1).

9. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 8, characterized in that: The dynamic stabilization component (32) includes an acceleration sensor (321), which is fixedly connected to the extrusion plate (312), and a cylinder (322) is also fixedly connected to the extrusion plate (312).

10. A pediatric ankle joint rehabilitation device with an adjustment mechanism according to claim 9, characterized in that: A sawtooth block (323) is fixedly connected to the output end of the cylinder (322), and a sawtooth strip (324) is vertically arranged on the base (1). The sawtooth strip (324) is fixedly connected to the base (1), and the sawtooth strip (324) corresponds to the position of the sawtooth block (323).

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