Ankle joint dynamic balance training device and training method

Abstract

The application relates to the technical field of rehabilitation training equipment and discloses an ankle joint dynamic balance training device and a training method; two footrest plates are arranged in corresponding frames, rotating shafts are arranged in the footrest plates and fixed on the rotating shafts, inner ends of the rotating shafts are rotatably connected to the inner side walls of the frames through bearings, outer ends of the rotating shafts are rotatably connected to the side walls of the frames through the bearings and exposed to the outer sides of the frames, heel limiting tables are arranged at the bottoms of the footrest plates, two springs are arranged on the left sides of the footrest plates and fixed to the left inner walls of the frames, four binding strap supporting blocks are arranged on the right sides of the footrest plates in two groups respectively, binding straps are arranged in the two binding strap supporting blocks in the same group, and the two ends of the binding straps are connected through magic tapes; the patient adopts a sitting training method to exercise the muscles around the ankle joint, the training effect is improved, the stability during training is improved, and the training is safer.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation training equipment technology, specifically to an ankle joint dynamic balance training device and training method. Background Technology

[0002] The ankle joint is an important weight-bearing joint in the lower limbs, and it is prone to sports injuries such as ankle sprains during daily activities. If not treated promptly and correctly, it can easily lead to ankle instability, causing repeated ankle sprains. Clinically, rehabilitation training is generally chosen to intervene in the early stages of ankle instability. Balance training is used to improve balance control, strengthen ankle proprioception, restore muscle and nerve response and control, and effectively improve ankle instability. Patent publication number CN114432654B discloses an ankle dynamic balance training device and method. The device involves standing on a stable support plate with both feet and rotating the plate by changing one's center of gravity to achieve uniform resistance training. Although the above patent is theoretically feasible, in actual use, due to the patient's ankle injury, when standing on the stable support plate with both feet, there is no auxiliary structure to support and protect the patient, which may lead to instability and falls. Safety cannot be guaranteed, and it may even aggravate the injury to the ankle. How can training be carried out under such circumstances? Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing an ankle joint dynamic balance training device and method that is simple in structure, reasonable in design, and easy to use. Patients can train while seated to exercise the muscles around the ankle joint, which not only improves the training effect but also enhances stability during training and makes it safer.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: it includes a base, a seat, and a footrest support; the footrest support is symmetrically arranged on the upper side of the base, a frame is arranged on the upper side of the footrest support, and the seat is arranged on the upper right side of the base; it also includes:

[0005] The foot pedals consist of two pedals, each set within a corresponding frame. A rotating shaft is inserted and fixed inside the foot pedal. The inner end of the rotating shaft is screwed onto the inner side wall of the frame via a bearing, while the outer end of the rotating shaft is screwed through the side wall of the frame via a bearing and protrudes onto the outer side of the frame. A heel limiting platform is provided at the bottom of the foot pedal.

[0006] Two springs are fixed to the left side of the foot pedal, and the left end of the spring is fixed to the left inner wall of the frame.

[0007] The strap support blocks consist of four blocks, which are arranged in pairs on the right side of the foot pedal. Straps are threaded through the two strap support blocks in the same group, and the two ends of the straps are attached together by Velcro.

[0008] With the above technical solution, each foot is placed on a corresponding foot pedal, which supports the foot. The upper part of both feet pushes to the left, causing the foot pedal to rotate counterclockwise around the pivot point of the rotation axis, at which point the heel rotates to the right. Then, the force is reversed, and the heel pushes to the left, causing the foot pedal to rotate clockwise around the rotation axis, causing the upper part of the foot to rotate to the right, thus training the muscles in the ankle area.

[0009] As a further improvement of the present invention, the foot pedal has an adjustment groove on its left side with front and back opposite sides. The adjustment groove is located on the upper side of the spring, and an adjustment support block is slidably inserted in the adjustment groove. The left side of the adjustment support block is provided with a boss, and the right side of the adjustment support block is connected to the strap support block. An adjustment motor is provided on the left side of the foot pedal through a motor bracket. The adjustment motor is connected to the power supply inside the base. The output end of the adjustment motor is provided with a bidirectional lead screw, and the boss is respectively screwed onto the opposite threads on the bidirectional lead screw.

[0010] By designing the above technical solution, the distance between the front and rear strap support blocks can be adjusted to make the foot more stable.

[0011] As a further improvement of the present invention, arc-shaped grooves are provided on the inner walls of the front and rear sides of the frame, and support rods are fixed on the front and rear sides of the foot pedal, and the support rods are arranged on the upper side of the rotating shaft and slidably arranged in the corresponding arc-shaped grooves.

[0012] The above technical solution guides the rotation of the pedals.

[0013] As a further improvement of the present invention, a driving assembly is provided on the exposed outer end of the rotating shaft, the driving assembly comprising:

[0014] A rotating sleeve is provided on the outside of the frame, and the outer end of the rotating shaft is screwed into the inside of the rotating sleeve through a bearing; the rotating sleeve is screwed to the frame through a bearing seat.

[0015] A rotating gear is fitted and fixed to the outer end of the rotating sleeve. A drive motor is provided on the outside of the frame. The drive motor is connected to the power supply inside the base. A drive gear is provided on the output end of the drive motor. The drive gear meshes with the rotating gear.

[0016] Supporting protrusions, there are two supporting protrusions, which are symmetrically fixed on the left and right sides of the inner end of the rotating sleeve, and studs are provided on the upper and lower sides of the supporting protrusions.

[0017] The arc-shaped plate consists of two arc-shaped plates, which are symmetrically fitted on the upper and lower sides of the rotating sleeve. The extension sections on both sides of the arc-shaped plate are screwed with threaded sleeves through bearings, and the threaded sleeves are screwed onto the corresponding studs.

[0018] The positioning strip consists of two strips, which are fixed to the inner arc wall of the arc plate. The positioning strips are located on the side of the rotating sleeve away from the rotating gear, and the inner end of the positioning strip is inserted into the positioning groove opened on the outer ring wall of the rotating shaft.

[0019] Through the above technical solution design, the rotation of the threaded sleeve drives the arc plate to move, causing the positioning strip to move. When the positioning strip moves away from the positioning groove, the rotating shaft and the rotating sleeve can rotate freely, allowing the patient to actively apply power to the foot pedal. When the positioning strip moves and is inserted into the positioning groove, the rotating shaft and the rotating sleeve are connected as one unit. Driven by the drive motor, the foot pedal is rotated for practice, and the patient can train without additional force.

[0020] As a further improvement of the present invention, a rotating sleeve is fitted and fixed on the threaded sleeve;

[0021] The above technical solution is designed to facilitate the rotation of the threaded sleeve.

[0022] As a further improvement of the present invention, a support block is provided on the upper left side of the base, and a moving motor is provided on the left side of the support block via a motor bracket. The moving motor is connected to the power supply inside the base. After the output end of the moving motor passes through the support block, a guide gear is provided. Driven gears are respectively meshed on the front and rear sides of the guide gear. A driven shaft is passed through and fixed inside the driven gear. The left end of the driven shaft is screwed into the support block via a bearing. A threaded rod is provided on the right end of the driven shaft. A threaded tube is screwed onto the threaded rod via a thread. The right end of the threaded tube is screwed into the foot pedal bracket via a bearing. The foot pedal bracket is slidably mounted on the base via a sliding pair.

[0023] By designing the above technical solution, the position of the pedal bracket can be adjusted, thereby changing the position of the pedal plate.

[0024] As a further improvement of the present invention, an auxiliary frame is provided on the right front side of the base, an auxiliary rod is provided on the left side of the auxiliary frame, and an anti-slip sleeve is fitted on the auxiliary rod.

[0025] The above technical solution provides support for the patient's arm.

[0026] As a further improvement of the present invention, a movable groove is provided on the left side of the auxiliary frame, and the right end of the auxiliary rod is slidably disposed in the movable groove. A drive groove is provided on the right side of the auxiliary frame, and the drive groove is connected to the movable groove. A drive rod is provided at the right end of the auxiliary rod, and the drive rod is slidably disposed in the drive groove. A drive motor is provided on the upper right side of the auxiliary frame. The drive motor is connected to the power supply inside the base. After the output end of the drive motor passes through the groove wall of the drive groove, a screw is provided, and the screw is threadedly screwed into the drive rod. A reinforcing platform is provided at the right end of the drive rod, and the reinforcing platform is in contact with the right side of the auxiliary frame.

[0027] The above technical solution is designed to drive the auxiliary rod to adjust its height so that the patient can support it with their hand.

[0028] The working principle of this invention: The patient sits on the chair, raises both feet, places the feet on the heel limiting platform, and the soles of the feet contact the foot pedal. The adjustment motor is started, which causes the bidirectional screw to rotate and drive the strap support blocks to move, thereby adjusting the distance between the front and rear strap support blocks. The strap support blocks are adjusted to clamp the foot, and the foot is limited by adjusting the straps.

[0029] Then, the moving motor is started, the guide gear rotates and meshes to make the driven gears on the front and rear sides rotate, and the threaded rod drives the threaded tube to move through the thread, changing the position of the foot pedal bracket so that the patient's legs are in a comfortable environment.

[0030] The rotation of the threaded sleeve drives the arc-shaped plate to move, causing the positioning strip to move. When the positioning strip moves away from the positioning groove, the rotating shaft and the rotating sleeve can rotate freely, allowing the patient to actively apply force to the foot pedal. By pushing the upper part of both feet to the left, the foot pedal rotates counterclockwise around the pivot point of the rotating shaft, causing the heel to rotate to the right. Then, by pushing the heel to the left, the foot pedal rotates clockwise around the rotating shaft, causing the upper part of the foot to rotate to the right, thus training the muscles in the ankle area.

[0031] When the positioning bar is inserted into the positioning slot, the rotating shaft and the rotating sleeve are connected as one unit. Driven by the drive motor, the drive gear rotates, which in turn drives the rotating shaft to rotate, thereby driving the foot pedal to rotate for practice. The patient does not need to exert any extra force to train.

[0032] During training, the patient holds the auxiliary rod to support their arm and provide support. According to the patient's needs, the drive motor is started, which causes the screw to drive the auxiliary rod to move.

[0033] With the above structure, the beneficial effects of the present invention are as follows:

[0034] 1. The patient sits with their feet placed on the corresponding foot pedals. The heel limiter supports the heels. By applying force to the foot pedals, the foot pedals rotate around the center of the rotation axis, thus training the muscles around the ankle.

[0035] 2. The rotating shaft and the rotating sleeve are connected by a bearing. When the positioning strip is away from the positioning groove, the rotating shaft and the rotating sleeve can rotate freely, and the patient can train on their own. When the positioning strip is moved and inserted into the positioning groove, the rotating shaft and the rotating sleeve are connected as one unit, and the patient can train by external drive without having to apply force.

[0036] 3. A single guide gear can drive the movement of the front and rear foot pedal supports, keeping the patient's legs in a comfortable position. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the present invention.

[0039] Figure 2 This is a schematic diagram of the southeast isometric structure of the present invention.

[0040] Figure 3 This is a schematic diagram of the internal structure of the frame in this invention.

[0041] Figure 4 This is a schematic diagram of the driving component in this invention.

[0042] Figure 5 yes Figure 4 Enlarged view of part A.

[0043] Figure 6 This is a schematic diagram of the connection structure of the strap support block, boss, and adjustment support block in this invention.

[0044] Figure 7 This is a schematic diagram of the auxiliary frame in this invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Base; 2. Seat; 3. Footrest support; 4. Arc groove 4-1; 5. Footrest plate; 6. Adjustment groove 5-1; 7. Rotating shaft; 8. Positioning groove 6-1; 9. Spring; 10. Strap support block; 11. Strap; 12. Adjustment support block; 13. Boss; 14. Adjustment motor; 15. Two-way lead screw; 16. Support rod; 16. Drive assembly; 16. Rotating sleeve 16-1; Rotating gear 16-2; Drive motor 16-3; Drive gear 16-4; Support protrusion. 16-5, Stud; 16-6, Arc plate; 16-7, Threaded sleeve; 16-8, Positioning strip; 16-9, Rotating sleeve; 16-10, Bearing seat; 16-11, Support block; 17, Moving motor; 18, Guide gear; 19, Driven gear; 20, Threaded rod; 21, Threaded pipe; 22, Auxiliary frame; 23, Moving groove; 23-1, Drive groove; 23-2, Auxiliary rod; 24, Anti-slip sleeve; 25, Drive rod; 26, Drive motor; 27, Screw; 28, Reinforcing platform; 29. Detailed Implementation

[0047] The invention will now be further described with reference to the accompanying drawings.

[0048] Example 1:

[0049] Please see Figures 1-7 This embodiment includes a base 1, a seat 2, and a footrest support 3. The footrest support is symmetrically arranged on the upper side of the base 1, and a frame 4 is arranged on the upper side of the footrest support 3. The seat 2 is arranged on the upper right side of the base 1. It also includes:

[0050] Foot pedals 5, two of them, are respectively set in the corresponding frames 4, and a rotating shaft 6 is inserted and fixed inside the foot pedal 5. The inner end of the rotating shaft 6 is screwed to the inner side wall of the frame 4 through a bearing, and the outer end of the rotating shaft 6 is screwed through the side wall of the frame 4 through a bearing and exposed on the outer side of the frame 4. A heel limiting platform 7 is set at the bottom of the foot pedal 5. Arc grooves 4-1 are opened on the inner walls of the front and rear sides of the frame 4. Support rods 15 are fixed on the front and rear sides of the foot pedal 5, and the support rods 15 are set on the upper side of the rotating shaft 6 and slide in the corresponding arc grooves 4-1.

[0051] Spring 8, there are two springs 8, which are respectively fixed to the left side of the foot pedal 5, and the left end of the spring 8 is fixed to the left inner wall of the frame 4.

[0052] The strap support block 9 consists of four strap support blocks 9, which are arranged in pairs on the right side of the foot pedal 5. The two strap support blocks 9 in the same group are fitted with straps 10, and the two ends of the straps 10 are attached together by Velcro.

[0053] Using the above design, each foot is placed on the corresponding foot pedal 5, which supports the foot. The upper part of both feet pushes to the left, causing the foot pedal 5 to rotate counterclockwise around the pivot point of the rotation axis 6, at which point the heel rotates to the right. Then, the force is reversed, and the heel pushes to the left, causing the foot pedal 5 to rotate clockwise around the rotation axis 6, causing the upper part of the foot to rotate to the right, thus training the muscles in the ankle area.

[0054] Example 2:

[0055] Please see Figures 1-7 Based on Embodiment 1, further improvements are made. The foot pedal 5 has an adjustment groove 5-1 on its left side, with the front and rear sides facing each other. The adjustment groove 5-1 is located above the spring 8, and adjustment blocks 11 slide through the adjustment groove 5-1. The left side of the adjustment block 11 has a boss 12, and the right side of the adjustment block 11 is connected to the strap block 9. An adjustment motor 13 is installed on the left side of the foot pedal 5 through a motor bracket. The adjustment motor 13 is connected to the power supply inside the base 1. The specific model of the adjustment motor 13 is purchased and installed directly from the market according to the actual usage requirements. The output end of the adjustment motor 13 is provided with a bidirectional lead screw 14, and the boss 12 is respectively provided on the opposite threads of the bidirectional lead screw 14 through threaded rotating sleeves 16-10.

[0056] By adopting the above design scheme, the distance between the two front and rear strap support blocks 9 is adjusted to make the foot more stable.

[0057] Example 3:

[0058] Please see Figures 1-7 Based on Embodiment 1, a further improvement is made: a drive assembly 16 is provided on the exposed outer end of the rotating shaft 6, and the drive assembly 16 includes:

[0059] Rotating sleeve 16-1 is located on the outside of frame 4, and the outer end of rotating shaft 6 is screwed into the inside of rotating sleeve 16-1 via bearing; rotating sleeve 16-1 is screwed into frame 4 via bearing seat 16-11.

[0060] Rotating gear 16-2, the rotating gear 16-2 is sleeved and fixed to the outer end of rotating sleeve 16-1, a drive motor 16-3 is provided on the outside of frame 4, the drive motor 16-3 is connected to the power supply inside the base 1, the specific model of drive motor 16-3 is purchased directly from the market according to actual use requirements, and a drive gear 16-4 is provided on the output end of drive motor 16-3, the drive gear 16-4 is meshed with rotating gear 16-2;

[0061] Supporting protrusions 16-5, there are two supporting protrusions 16-5, which are symmetrically fixed on the left and right sides of the inner end of the rotating sleeve 16-1. Studs 16-6 are provided on the upper and lower sides of the supporting protrusions 16-5.

[0062] Two arc-shaped plates 16-7 are symmetrically fitted on the upper and lower sides of the rotating sleeve 16-1, and threaded sleeves 16-8 are screwed onto the extension sections on both sides of the arc-shaped plates 16-7 via bearings. The threaded sleeves 16-8 are screwed onto the corresponding studs 16-6. A rotating sleeve 16-10 is fitted and fixed onto the threaded sleeves 16-8.

[0063] Positioning strip 16-9, there are two positioning strips 16-9, which are respectively fixed on the inner arc wall of the arc plate 16-7, and the positioning strip 16-9 is set on the side of the rotating sleeve 16-1 away from the rotating gear 16-2. The inner end of the positioning strip 16-9 is inserted into the positioning groove 6-1 opened on the outer ring wall of the rotating shaft 6.

[0064] Using the above design, the rotation of the threaded sleeve 16-8 drives the arc plate 16-7 to move, causing the positioning strip 16-9 to move. When the positioning strip 16-9 moves away from the positioning groove 6-1, the rotating shaft 6 and the rotating sleeve 16-1 can rotate freely, allowing the patient to actively apply power to the foot pedal 5. When the positioning strip 16-9 moves and is inserted into the positioning groove 6-1, the rotating shaft 6 and the rotating sleeve 16-1 are connected as one unit. Driven by the drive motor 16-3, the foot pedal 5 can be rotated for practice, allowing the patient to train without additional effort.

[0065] Example 4:

[0066] Please see Figures 1-7 Based on Embodiment 1, further improvements are made. A support block 17 is provided on the upper left side of the base 1. A moving motor 18 is provided on the left side of the support block 17 via a motor bracket. The moving motor 18 is connected to the power supply inside the base 1. The specific model of the moving motor 18 is purchased, installed, and used directly from the market according to actual usage requirements. After the output end of the moving motor 18 passes through the support block 17, a guide gear 19 is provided. Driven gears 20 are respectively meshed on the front and rear sides of the guide gear 19. A driven shaft is passed through and fixed inside the driven gear 20. The left end of the driven shaft is screwed into the support block 17 via a bearing. A threaded rod 21 is provided on the right end of the driven shaft. A threaded tube 22 is screwed onto the threaded rod 21 via a thread. The right end of the threaded tube 22 is screwed into the foot pedal bracket 3 via a bearing. The foot pedal bracket 3 is slidably mounted on the base 1 via a sliding pair.

[0067] Using the above design scheme, adjust the position of the foot pedal bracket 3 to change the position of the foot pedal plate 5.

[0068] Example 5:

[0069] Please see Figures 1-7 Based on Embodiment 1, further improvements are made. An auxiliary frame 23 is provided on the front right side of the base 1, and an auxiliary rod 24 is provided on the left side of the auxiliary frame 23. An anti-slip sleeve 25 is fitted on the auxiliary rod 24. A moving groove 23-1 is opened on the left side of the auxiliary frame 23, and the right end of the auxiliary rod 24 is slidably disposed in the moving groove 23-1. A driving groove 23-2 is opened on the right side of the auxiliary frame 23, and the driving groove 23-2 is connected to the moving groove 23-1. A driving rod 26 is provided on the right end of the auxiliary rod 24, and the driving rod 26 slides through... Located within the drive slot 23-2; a drive motor 27 is installed on the upper right side of the auxiliary frame 23. The drive motor 27 is connected to the power supply inside the base 1. The specific model of the drive motor 27 is purchased and installed directly from the market according to actual usage requirements. After the output end of the drive motor 27 passes through the slot wall of the drive slot 23-2, a screw 28 is installed, and the screw 28 is threadedly screwed into the drive rod 26. A reinforcing platform 29 is installed at the right end of the drive rod 26, and the reinforcing platform 29 is in contact with the right side of the auxiliary frame 23.

[0070] Using the above design, the height of the drive rod 24 is adjusted to facilitate hand support for the patient.

[0071] When using this invention, the patient sits on the seat 2, raises both feet, places the feet on the heel limiting platform 7, and the soles of the feet contact the foot pedal 5. The adjusting motor 13 is started, causing the bidirectional lead screw 14 to rotate and drive the strap support block 9 to move, thereby adjusting the distance between the front and rear strap support blocks 9. The strap support block 9 is adjusted to clamp the foot, and the foot is limited by adjusting the strap 10.

[0072] Then, the moving motor 18 is started, the guide gear 19 rotates and meshes to make the driven gears 20 on the front and rear sides rotate, and the threaded rod 21 drives the threaded tube 22 to move through the thread, changing the position of the foot pedal bracket 3 so that the patient's legs are in a comfortable environment.

[0073] The rotation of the threaded sleeve 16-8 drives the arc-shaped plate 16-7 to move, causing the positioning strip 16-9 to move. When the positioning strip 16-9 moves away from the positioning groove 6-1, the rotating shaft 6 and the rotating sleeve 16-1 are movable, allowing the patient to actively apply power to the foot pedal 5. By pushing the upper part of both feet to the left, the foot pedal 5 rotates counterclockwise around the pivot point of the rotating shaft 6, causing the heel to rotate to the right. Then, by pushing the heel to the left, the foot pedal 5 rotates clockwise around the rotating shaft 6, causing the upper part of the foot to rotate to the right, thus training the muscles in the ankle area.

[0074] When the positioning strip 16-9 is moved and inserted into the positioning groove 6-1, the rotating shaft 6 and the rotating sleeve 16-1 are connected as one unit. Driven by the drive motor 16-3, the drive gear 16-4 drives the rotating gear 16-2 to rotate, which drives the rotating shaft 6 to rotate, thereby driving the foot pedal 5 to rotate for practice. The patient can train without extra force.

[0075] During training, the patient holds the auxiliary rod 24 to support their arm and provide support. According to the patient's needs, the drive motor 27 is started, which will cause the screw 28 to drive the auxiliary rod 24 to move.

[0076] The beneficial effects of this specific embodiment after adopting the above structure are as follows:

[0077] 1. The patient sits and places their feet on the corresponding foot pedals 5. The heel limiting platform 7 supports the heels. By applying force to the foot pedals 5, the foot pedals 5 rotate around the center of the rotation axis 6, thus training the muscles around the ankle.

[0078] 2. The rotating shaft 6 and the rotating sleeve 16-1 are connected by a bearing. When the positioning strip 16-9 is away from the positioning groove 6-1, the rotating shaft 6 and the rotating sleeve 16-1 can rotate freely, and the patient can train on their own. When the positioning strip 16-9 is moved and inserted into the positioning groove 6-1, the rotating shaft 6 and the rotating sleeve 16-1 are connected as one unit, and the patient can train by external drive without having to apply force.

[0079] 3. A guide gear can drive the front and rear foot pedal supports 3 to move by turning 19 times, so that the patient's legs are in a comfortable position.

[0080] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. An ankle joint dynamic balance training device, comprising a base (1), a seat (2), and a foot pedal support (3), wherein the foot pedal support is symmetrically arranged on the upper side of the base (1), a frame (4) is arranged on the upper side of the foot pedal support (3), and the seat (2) is arranged on the upper right side of the base (1); characterized in that, It also includes: A support block (17) is provided on the upper left side of the base (1). A moving motor (18) is provided on the left side of the support block (17) via a motor bracket. The moving motor (18) is connected to the power supply inside the base (1). After the output end of the moving motor (18) passes through the support block (17), a guide gear (19) is provided. Driven gears (20) are respectively meshed on the front and rear sides of the guide gear (19). A driven shaft is inserted and fixed inside the driven gear (20). The left end of the driven shaft is connected to a bearing. A threaded rod (21) is provided at the right end of the driven shaft and a threaded tube (22) is provided on the threaded rod (21) by threaded connection. The right end of the threaded tube (22) is provided in the foot pedal bracket (3) by bearing connection, and the foot pedal bracket (3) is slidably provided on the base (1) by sliding pair. An auxiliary frame (23) is provided on the right front side of the base (1), and an auxiliary rod (24) is provided on the left side of the auxiliary frame (23). An anti-slip sleeve (25) is provided on the auxiliary rod (24). Foot pedals (5), there are two foot pedals (5), which are respectively set in the corresponding frames (4), and a rotating shaft (6) is inserted and fixed inside the foot pedals (5). The inner end of the rotating shaft (6) is screwed onto the inner side wall of the frame (4) through a bearing, and the outer end of the rotating shaft (6) is screwed through the side wall of the frame (4) through a bearing and exposed on the outer side of the frame (4); a heel limiting platform (7) is provided at the bottom of the foot pedals (5). Spring (8), there are two springs (8), which are respectively fixed to the left side of the foot pedal (5), and the left end of the spring (8) is fixed to the left inner wall of the frame (4); The strap support block (9) consists of four strap support blocks (9), which are arranged in pairs on the right side of the foot pedal (5). The two strap support blocks (9) in the same group are fitted with straps (10), and the two ends of the straps (10) are attached together by Velcro. The foot pedal (5) has an adjustment groove (5-1) on its left side, which is located on the upper side of the spring (8). An adjustment support block (11) is slidably inserted into the adjustment groove (5-1). A boss (12) is provided on the left side of the adjustment support block (11). The right side of the adjustment support block (11) is connected to the strap support block (9). An adjustment motor (13) is provided on the left side of the foot pedal (5) through a motor bracket. The adjustment motor (13) is connected to the power supply inside the base (1). A two-way lead screw (14) is provided at the output end of the adjustment motor (13). The boss (12) is respectively screwed onto the opposite threads on the two-way lead screw (14). A drive assembly (16) is provided on the exposed outer end of the rotating shaft (6), and the drive assembly (16) includes: Rotating sleeve (16-1), the rotating sleeve (16-1) is located on the outside of the frame (4), and the outer end of the rotating shaft (6) is screwed into the rotating sleeve (16-1) through a bearing; the rotating sleeve (16-1) is screwed into the frame (4) through a bearing seat (16-11); Rotating gear (16-2), the rotating gear (16-2) is fitted and fixed to the outer end of rotating sleeve (16-1), a drive motor (16-3) is provided on the outside of frame (4), the drive motor (16-3) is connected to the power supply inside the base (1), a drive gear (16-4) is provided on the output end of the drive motor (16-3), and the drive gear (16-4) meshes with the rotating gear (16-2); Supporting protrusions (16-5): There are two supporting protrusions (16-5), which are symmetrically fixed on the left and right sides of the inner end of the rotating sleeve (16-1). Studs (16-6) are provided on the upper and lower sides of the supporting protrusions (16-5). Two arc-shaped plates (16-7) are respectively symmetrically attached to the upper and lower sides of the rotating sleeve (16-1), and threaded sleeves (16-8) are screwed into the extension sections on the left and right sides of the arc-shaped plates (16-7) through bearings. The threaded sleeves (16-8) are screwed onto the corresponding studs (16-6) through threaded connection. Positioning strip (16-9), there are two positioning strips (16-9), which are respectively fixed on the inner arc wall of the arc plate (16-7), and the positioning strip (16-9) is located on the side of the rotating sleeve (16-1) away from the rotating gear (16-2). The inner end of the positioning strip (16-9) is inserted into the positioning groove (6-1) opened on the outer ring wall of the rotating shaft (6).

2. The ankle joint dynamic balance training device according to claim 1, characterized in that: The frame (4) has arc-shaped grooves (4-1) on both the front and rear inner walls. The foot pedal (5) has support rods (15) fixed on both the front and rear sides. The support rods (15) are located on the upper side of the rotating shaft (6) and are slidably located in the corresponding arc-shaped grooves (4-1).

3. The ankle joint dynamic balance training device according to claim 1, characterized in that: A rotating sleeve (16-10) is fitted and fixed on the threaded sleeve (16-8).

4. The ankle joint dynamic balance training device according to claim 1, characterized in that: The auxiliary frame (23) has a moving groove (23-1) on the left side, and the right end of the auxiliary rod (24) is slidably disposed in the moving groove (23-1). The auxiliary frame (23) has a driving groove (23-2) on the right side, and the driving groove (23-2) is connected to the moving groove (23-1). The right end of the auxiliary rod (24) is provided with a driving rod (26), which slides through the driving groove (23-2). The upper right side of the auxiliary frame (23) is provided with a driving motor (27), which is connected to the power supply inside the base (1). After the output end of the driving motor (27) passes through the groove wall of the driving groove (23-2), a screw (28) is provided, and the screw (28) is threaded through the driving rod (26). The right end of the driving rod (26) is provided with a reinforcing platform (29), which is in contact with the right side of the auxiliary frame (23).

5. The training method of the ankle joint dynamic balance training device according to claim 1, characterized in that: Place both feet on the corresponding foot pedals (5), which support the feet. Push the upper part of both feet to the left, causing the foot pedals (5) to rotate counterclockwise around the pivot point of the rotation axis (6), at which point the heels rotate to the right. Then, push in the opposite direction, pushing the heels to the left, causing the foot pedals (5) to rotate clockwise around the rotation axis (6), causing the upper part of the feet to rotate to the right, thus training the muscles in the ankle area.

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