Correcting exercise device for preventing foot drop

Abstract

The invention discloses a correction exercise device for preventing foot drop, relates to the technical field of medical instruments, and aims to solve the problems that an existing device is single in function and can only assist active exercise. The device comprises a base, a thigh base plate, a shank base plate, a lifting mechanism, a supporting rod and a correcting mechanism. One end of the thigh base plate is rotationally mounted on the base, the other end of the thigh base plate is rotationally connected with the shank base plate, and the two sides are rotationally sleeved with the supporting rods; the lifting mechanism comprises a first push rod, a support and the like and can assist in lifting the straight legs. The supporting rod is matched with the lifting mechanism to replace a lower limb lifting pillow for use; a correcting mechanism is arranged at the tail end of the shank base plate and comprises a pull rod, a second threaded rod and the like to assist plantar flexion and dorsiflexion movement. The length of the thigh base plate can be adjusted, limbs are fixed through the restraint strap, the device adapts to different patients, the functions of prevention, correction and rehabilitation exercise are integrated, the occurrence rate of disuse syndromes and foot drop can be reduced, and the patients are assisted to rapidly recover and return to the society.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical devices, and particularly relates to a correction exercise device for preventing foot drop. BACKGROUND

[0002] Foot drop refers to the symptom that an ankle joint cannot actively complete dorsiflexion (hooking the toes upward), resulting in foot toes dragging on the ground and abnormal gait, and is not an independent disease but a manifestation of nerve, muscle or bone disease.

[0003] The core cause is dysfunction of the lower leg front group muscles (such as tibialis anterior muscle) that control ankle dorsiflexion, which is commonly seen in common peroneal nerve injury (such as pressure and impact on the lateral side of the knee joint), lumbar disc herniation compressing the nerve root, stroke, spinal cord injury, muscle disease or disuse atrophy after long-term immobilization. The typical manifestations are "threshold crossing gait" (lifting the affected limb to avoid foot toes dragging on the ground when walking), accompanied by ankle dorsiflexion weakness and lower leg muscle atrophy, which can lead to joint contracture and deformity in the long term, increasing the risk of falling. Early intervention can improve the prognosis, and long-term assistive devices may be required for severe nerve injury. Insisting on rehabilitation training is the key to functional recovery.

[0004] The existing exercise device for preventing foot drop usually has a single function, which can only perform ankle pump exercise or only perform straight leg raising exercise, can only assist active exercise, and cannot assist passive exercise, resulting in poor exercise effect.

[0005] Therefore, it is necessary to provide a correction exercise device for preventing foot drop, which can assist straight leg raising exercise, perform foot drop correction, assist lower limb lifting operation and assist ankle pump exercise. Through the device, the patient can be assisted in rehabilitation, the incidence of disuse syndrome and foot drop can be reduced, and the patient can return to society faster. SUMMARY

[0006] In order to solve the above technical problems, the application provides a correction exercise device for preventing foot drop, which assists straight leg raising through a lifting mechanism, and a thigh pad plate and a lower leg pad plate support and pad the lower limbs of a patient to improve comfort. A support rod cooperates with the lifting mechanism to replace the function of a lower limb lifting pillow. The end of the lower leg pad plate is provided with a correction exercise assisting mechanism to assist metatarsophalangeal flexion and dorsiflexion exercise.

[0007] In order to achieve the above technical purposes, the application is implemented by the following technical scheme:

[0008] A correction exercise device for preventing foot drop, comprising a base, a thigh pad plate, a lower leg pad plate, a lifting mechanism, a support rod and a correction mechanism.

[0009] One end of the thigh pad is rotatably mounted on one end of the base, and the other end is rotatably connected to the calf pad; support rods are rotatably sleeved on both sides of the thigh pad; the bottom end of the support rod slides on the base.

[0010] The lifting mechanism includes a push rod A, a bracket, a threaded rod A, a transmission mechanism, and a slider A. The push rod A is a horizontally telescopic rod, with one end fixedly connected to the base and the other end fixedly connected to the bottom of the bracket. The bracket is a frame with a near-U-shaped structure, with a threaded rod A rotatably mounted on each side. A slider A is threaded onto the threaded rod A. The transmission mechanism is mounted on the top of the bracket and outputs two synchronous rotary motions to drive the two threaded rods A to rotate synchronously. The two sliders A slide vertically on both sides of the bracket, and their adjacent ends are movably connected to the end of the lower leg pad.

[0011] The correction mechanism includes a pull rod, a threaded rod B, a slider C, and a foot plate;

[0012] The threaded rod B is threaded through the slider C, and drives the slider C to slide linearly on the calf plate by rotation; the bottom end of the foot plate is rotatably connected to the slider C and slides on the calf pad plate along with the slider C.

[0013] A pull rod is rotatably connected to each of the top two sides of the foot plate; the other end of the pull rod is rotatably connected to the calf pad; the pull rod is a straight rod with a fixed length after extension and retraction; the pull rod drives the foot plate to rotate relative to the calf pad by extension and retraction;

[0014] Furthermore, the thigh pad is a linearly telescopic plate, which is limited by a spring pin or pin shaft after telescopic movement; baffles are fixedly connected to both sides of the upper surface of the thigh pad and the calf pad; several restraint straps are fixedly connected to the surface of the thigh pad, the calf pad and the foot plate; the restraint straps include one or more of elastic bands, Velcro straps and snap fasteners.

[0015] Furthermore, the support rod is an L-shaped turning rod, with a slider D rotatably sleeved at its bottom end; the slider D is an internally threaded slider, and a threaded rod C is threadedly sleeved on it; a driving component A is fixedly connected to the end of the threaded rod C; the driving component A is fixedly installed on the base, outputting bidirectional rotary motion and driving the threaded rod C to rotate bidirectionally, and driving the bottom end of the support rod to slide on the base through the slider D; notches are provided on both sides of the base;

[0016] Furthermore, both the push rod A and the pull rod are rods that extend and retract in a straight direction and are limited after extension and retraction, including one or more of the following: electric push rod, hydraulic push rod, pneumatic push rod, pin telescopic rod, and spring pin telescopic rod; the two push rods A are located on both sides of the threaded rod C; the threaded rod B is located above the threaded rod C;

[0017] Furthermore, the transmission mechanism includes a transmission component, a drive wheel, a transmission wheel, and a drive component B; the transmission wheel is fixedly connected to the top end of the threaded rod A; the drive component B is fixedly installed at the middle of the top end of the bracket and outputs bidirectional rotary motion to drive the drive wheel to rotate; the drive wheel is located between the two transmission wheels; the transmission component meshes with the drive wheel and the two transmission wheels; the transmission component and the transmission wheel are a belt and a pulley, or a chain and a sprocket;

[0018] Furthermore, protruding sleeves are fixedly connected to both ends of the calf pad and both ends of the foot plate; sleeves are fixedly connected to both ends of the pull rod; the sleeves are adapted to the sleeves; the two pull rods are rotatably sleeved on the sleeves on the same side through the sleeves at both ends; the extension and retraction of the pull rods drive the foot plate to rotate relative to the calf pad;

[0019] Furthermore, slide rails A are fixedly connected to both sides of the end of the calf pad; a slide column is fixedly connected to the outer wall of the slide rail A; the slide column is a cylindrical structure that is adapted to the slide rail A and is sleeved inside the slide rail A, and drives the end of the calf pad to rise and fall by lifting and rotating relative to the calf pad.

[0020] Furthermore, a limiting block and a rotating block are respectively fixedly connected to the adjacent ends of the thigh pad and the calf pad; the limiting block is provided with a plurality of circumferentially spaced limiting holes; after the thigh pad and the calf pad rotate, they are limited by inserting pins or spring pins into the limiting holes and the rotating block, or by tightening bolts.

[0021] The beneficial effects of this invention are:

[0022] The corrective exercise device for preventing foot drop provided by this invention has the following advantages compared to the prior art:

[0023] With its scientifically designed structure and seamless coordination of all components, the device enables precise correction and comprehensive exercise of the foot from multiple dimensions and angles. The operation is simple and easy to understand, allowing both patients and caregivers to quickly master its use, greatly enhancing its practicality.

[0024] With strong personalized adaptation capabilities, the length of the thigh pad can be flexibly adjusted according to the patient's leg length, and the angle of the foot plate can be finely adjusted through the pull rod, perfectly adapting to the needs of patients with different body types and conditions, allowing each user to obtain the most comfortable and effective correction and exercise experience.

[0025] This device integrates multiple functions, including prevention, correction of foot drop, and rehabilitation exercises, eliminating the need for additional equipment and significantly saving space and cost. The restraint straps are designed to be sturdy and reliable, firmly securing the patient's limbs and preventing displacement during use. They also effectively improve comfort, allowing patients to complete correction and exercises in a relaxed state. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments 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.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a side view of the present invention;

[0029] Figure 3 This is a schematic diagram of the overall structure from another perspective of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the base and the lifting mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the thigh pad, calf pad, and support rod of the present invention;

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1-Base, 11-Notch

[0034] 2-Thigh pad, 23-Baffle, 24-Restraint strap, 25-Limit block, 251-Limit hole

[0035] 3-Lower leg pad, 31-Sleeve post, 32-Slide rail armor, 33-Rotating block,

[0036] 4-Lifting mechanism, 41-Push rod A, 42-Bracket, 43-Threaded rod A, 44-Transmission mechanism, 441-Transmission component, 442-Drive wheel, 443-Transmission wheel, 444-Drive component B, 45-Slider A, 451-Sliding column,

[0037] 5-Support rod, 51-Slider D, 52-Threaded rod C, 53-Driver A,

[0038] 6-Correcting mechanism, 61-Pull rod, 611-Sleeve, 62-Threaded rod B, 63-Slider C, 64-Foot plate, Detailed Implementation

[0039] 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.

[0040] Example 1

[0041] Please see Figures 1-5 In this embodiment, a corrective exercise device for preventing foot drop includes: a base 1, a thigh pad 2, a calf pad 3, a lifting mechanism 4, a support rod 5, and a corrective mechanism 6; wherein, the base 1 is made of high-strength aluminum alloy with a thickness of 8-12mm to ensure the stability of the overall device, and anti-slip pads can be installed at the four corners of its bottom to prevent the device from sliding during use.

[0042] In this embodiment, one end of the thigh pad 2 is rotatably mounted on one end of the base 1, and the other end is rotatably connected to the calf pad 3; support rods 5 are rotatably sleeved on both sides of the thigh pad 2; the bottom end of the support rod 5 slides on the base 1; the rotatable connection between the thigh pad 2 and the base 1 adopts a damping shaft, which allows the thigh pad 2 to be stably stopped at any angle during rotation; wear-resistant pads are provided at the rotatable connection between the support rod 5 and the thigh pad 2 to reduce wear during long-term use.

[0043] In this embodiment, the lifting mechanism 4 includes a push rod A 41, a bracket 42, a threaded rod A 43, a transmission mechanism 44, and a slider A 45. The push rod A 41 is a horizontally linear telescopic rod, with one end fixedly connected to the base 1 and the other end fixedly connected to the bottom end of the bracket 42. The bracket 42 is a frame with a near-U-shaped structure, with a threaded rod A 43 rotatably mounted on each side. A slider A 45 is threadedly sleeved on the threaded rod A 43. The transmission mechanism 44 is installed at the top of the bracket 42 and outputs two synchronous rotary motions to drive the two threaded rods A 43 to rotate synchronously. The two sliders A 45 slide vertically on both sides of the bracket 42, and their adjacent ends are movably connected to the end of the lower leg pad 3. Vertical grooves are provided on the inner walls of both sides of the bracket 42, and protrusions matching the grooves are provided on both sides of the slider A 45 to ensure the stability of the vertical sliding of the slider A 45. The surface of the threaded rod A 43 is treated with rust prevention to extend its service life.

[0044] In this embodiment, the correction mechanism 6 includes a pull rod 61, a threaded rod B 62, a slider C 63, and a foot plate 64; all the connections of the components of the correction mechanism 6 are made of high-strength alloy steel to ensure the structural strength when driving the foot plate 64 to move.

[0045] In this embodiment, the threaded rod B 62 is threaded through the slider C 63, and drives the slider C 63 to slide linearly on the calf pad 3 by rotation; the bottom end of the foot plate 64 is rotatably connected to the slider C 63 and slides on the calf pad 3 along with the slider C 63; the calf pad 3 has a slide track adapted to the slider C 63, and the slide track is coated with grease to reduce the friction when the slider C 63 slides; one end of the threaded rod B 62 is provided with a handle for easy rotation, and the surface of the handle is covered with a non-slip rubber sleeve.

[0046] In this embodiment, a pull rod 61 is rotatably connected to each of the top two sides of the foot plate 64; the other end of the pull rod 61 is rotatably connected to the calf pad 3; the pull rod 61 is a straight rod with a fixed length after extension and retraction; the pull rod 61 drives the foot plate 64 to rotate relative to the calf pad 3 through extension and retraction; the extension and retraction adjustment of the pull rod 61 can be achieved by setting scale markings, which facilitates precise control of the rotation angle of the foot plate 64 and meets the correction needs of different patients.

[0047] In this embodiment, the thigh pad 2 is a linearly telescopic plate, which is limited by a spring pin or pin shaft after telescopic movement; baffles 23 are fixedly connected to both sides of the thigh pad 2; several restraint straps 24 are fixedly connected to the surfaces of the thigh pad 2, the calf pad 3, and the foot plate 64; the restraint straps 24 include one or more of elastic bands, Velcro straps, and snap fasteners; the telescopic length range of the thigh pad 2 is set to 30-60cm to accommodate different thigh lengths of patients; the baffles 23 are made of elastic material to prevent injury caused by hard collision between the patient's leg and the sides of the thigh pad 2 during movement; the width of the restraint straps 24 is set to 5-8cm to ensure that the restraint of the limb is stable and comfortable.

[0048] In this embodiment, the support rod 5 is an L-shaped turning rod, with a slider D 51 rotatably sleeved at its bottom end; the slider D 51 is an internally threaded slider, and a threaded rod C 52 is threadedly sleeved on it; a driving component A 53 is fixedly connected to the end of the threaded rod C 52; the driving component A 53 is fixedly installed on the base 1, outputting bidirectional rotary motion and driving the threaded rod C 52 to rotate bidirectionally, and driving the bottom end of the support rod 5 to slide on the base 1 through the slider D 51; notches 11 are provided on both sides of the base 1;

[0049] In this embodiment, the push rod A 41 and the pull rod 61 are both linearly telescopic rods that are limited after telescopic extension, including one or more of the following: electric push rod, hydraulic push rod, pneumatic push rod, pin telescopic rod, and spring pin telescopic rod; the two push rods A 41 are located on both sides of the threaded rod C 52; the threaded rod B 62 is located above the threaded rod C 52; when the push rod A 41 is an electric push rod, its extension speed is adjustable, with an adjustment range of 5-20mm / s, to adapt to the rehabilitation rhythm of different patients; the connection between the push rod A 41 and the base 1 and the bracket 42 can be fixed with bolts for easy maintenance and replacement, or it can be directly welded or molded;

[0050] In this embodiment, the transmission mechanism 44 includes a transmission component 441, a drive wheel 442, a transmission wheel 443, and a drive component B 444. The transmission wheel 443 is fixedly connected to the top end of the threaded rod A 43. The drive component B 444 is fixedly installed at the middle of the top end of the bracket 42 and outputs bidirectional rotary motion to drive the drive wheel 442 to rotate. The drive wheel 442 is located between the two transmission wheels 443. The transmission component 441 meshes with the drive wheel 442 and the two transmission wheels 443. The transmission component 441 and the transmission wheel 443 are a belt and a pulley, or a chain and a sprocket. When the transmission component 441 and the transmission wheel 443 are a chain and a sprocket, the chain surface is carburized to improve its wear resistance and strength. The connection between the drive component B 444 and the bracket 42 is provided with a shock-absorbing pad to reduce noise and vibration during operation.

[0051] In this embodiment, outwardly protruding sleeves 31 are fixedly connected to both ends of the calf pad 3 and both ends of the foot plate 64; sleeves 611 are fixedly connected to both ends of the pull rod 61; the sleeves 611 are adapted to the sleeves 31; the two pull rods 61 are rotatably sleeved on the sleeves 31 on the same side through the sleeves 611 at both ends; the extension and retraction of the pull rods 61 drive the foot plate 64 to rotate relative to the calf pad 3; a baffle is provided at the end of the sleeve 31 to prevent the sleeve 611 from falling off the sleeve 31; the inner wall of the sleeve 611 is smooth, and the fitting gap between the sleeve and the sleeve 31 is controlled at 0.1-0.3mm to ensure the flexibility of rotation.

[0052] In this embodiment, slide rails 32 are fixedly connected to both ends of the lower leg pad 3; a sliding column 451 is fixedly connected to the outer wall of the slide rail 32; the sliding column 451 is a cylindrical structure, adapted to the slide rail 32, and sleeved inside the slide rail 32, driving the lower leg pad 3 to rise and fall by lifting and rotating relative to the lower leg pad 3; the length of the slide rail 32 is set according to the maximum lifting height of the lower leg pad 3 to ensure that the sliding column 451 has sufficient sliding stroke inside the slide rail 32; the surface of the sliding column 451 is chrome-plated to improve its wear resistance and rust prevention.

[0053] In this embodiment, a limiting block 25 and a rotating block 33 are fixedly connected to the adjacent ends of the thigh pad 2 and the calf pad 3, respectively. The limiting block 25 has several circumferentially spaced limiting holes 251. After the thigh pad 2 and the calf pad 3 rotate, they are limited by inserting pins or spring pins into the limiting holes 251 and the rotating block 33, or by tightening bolts. The number of limiting holes 251 is set to 5-8, and the central angle between adjacent limiting holes 251 is 15°-30°, which can realize the fixation of the thigh pad 2 and the calf pad 3 at multiple angles. The end of the pin or spring pin is provided with a pull ring for easy operation.

[0054] In this embodiment, the specific usage process of a corrective exercise device for preventing foot drop is as follows:

[0055] In use, the patient lies on the base 1, with their thighs placed on the thigh pad 2, their lower legs on the lower leg pad 3, and their feet on the foot plate 64, and secured with restraint straps 24. The length of the thigh pad 2 is adjusted according to the patient's leg length and is limited by spring pins or pivot pins.

[0056] During the fixation process, the tightness of the restraint strap 24 can be adjusted according to the patient's comfort, so as to achieve a fixation effect without causing the patient to feel pressure; when adjusting the length of the thigh pad 2, the spring pin or pin can be loosened first, the thigh pad 2 can be pulled to the appropriate length and then tightened.

[0057] When the drive component B 444 is activated, the drive wheel 442 drives the two transmission wheels 443 to rotate synchronously through the transmission component 441, thereby causing the two threaded rods A 43 to rotate synchronously. The slider A 45 moves vertically on the threaded rods A 43 and slides in the slide rail A 32 through the sliding column 451, driving the end of the lower leg pad 3 to rise and fall, realizing the lifting and lowering of the lower leg for rehabilitation exercises.

[0058] Activating drive component A 53 rotates threaded rod C 52, causing slider D 51 to slide on threaded rod C 52, which in turn causes the bottom end of support rod 5 to slide on base 1, thereby adjusting the angle between thigh pad 2 and base 1 to accommodate the lower limb elevation needs of different patients. Precise angle adjustment can be performed using the control button on drive component A 53, while simultaneously observing the patient's reaction to ensure the angle adjustment is performed comfortably. After adjustment, drive component A 53 automatically locks, maintaining the stability of the thigh pad 2's angle.

[0059] Rotating threaded rod B 62 causes slider C 63 to slide linearly on the calf pad 3, moving the foot plate 64. Simultaneously, the extension and retraction of pull rod 61 adjusts the angle of the foot plate 64 relative to the calf pad 3, achieving dorsiflexion and plantarflexion of the foot to prevent and correct foot drop. When rotating threaded rod B 62, the angle of the foot plate 64 can be precisely controlled according to the need for foot drop correction. Each adjustment should not be too large; a slight stretching sensation should be felt by the patient. A timer function can be set to periodically change the direction of movement during dorsiflexion and plantarflexion to improve the corrective effect.

[0060] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A corrective exercise device for preventing foot drop, characterized in that, include: Base, thigh pad, calf pad, lifting mechanism, support rod, and correction mechanism; One end of the thigh pad is rotatably mounted on one end of the base, and the other end is rotatably connected to the calf pad; support rods are rotatably sleeved on both sides of the thigh pad; the bottom end of the support rod slides on the base. The lifting mechanism includes a push rod A, a bracket, a threaded rod A, a transmission mechanism, and a slider A. The push rod A is a horizontally telescopic rod, with one end fixedly connected to the base and the other end fixedly connected to the bottom of the bracket. The bracket is a frame with a near-U-shaped structure, with a threaded rod A rotatably mounted on each side. A slider A is threaded onto the threaded rod A. The transmission mechanism is mounted on the top of the bracket and outputs two synchronous rotary motions to drive the two threaded rods A to rotate synchronously. The two sliders A slide vertically on both sides of the bracket, and their adjacent ends are movably connected to the end of the lower leg pad. The correction mechanism includes a pull rod, a threaded rod B, a slider C, and a foot plate; The threaded rod B is threaded through the slider C, and drives the slider C to slide linearly on the calf plate by rotation; the bottom end of the foot plate is rotatably connected to the slider C and slides on the calf pad plate along with the slider C. A pull rod is rotatably connected to each of the top two sides of the foot plate; the other end of the pull rod is rotatably connected to the calf pad; the pull rod is a straight rod with a fixed length after extension and retraction; the pull rod drives the foot plate to rotate relative to the calf pad by extension and retraction.

2. The corrective exercise device for preventing foot drop according to claim 1, characterized in that, The thigh pad is a linearly telescopic plate, which is limited by a spring pin or pin shaft after telescopic movement; baffles are fixedly connected to both sides of the upper surface of the thigh pad and the calf pad; several restraint straps are fixedly connected to the surface of the thigh pad, the calf pad and the foot plate; the restraint straps include one or more of elastic bands, Velcro straps and snap fasteners.

3. The corrective exercise device for preventing foot drop according to claim 1, characterized in that, The support rod is an L-shaped turning rod with a slider D rotatably sleeved at its bottom end; the slider D is an internally threaded slider and is threadedly sleeved with a threaded rod C; the end of the threaded rod C is fixedly connected to a driving component A; the driving component A is fixedly installed on the base, outputting bidirectional rotary motion and driving the threaded rod C to rotate bidirectionally, and driving the bottom end of the support rod to slide on the base through the slider D; notches are provided on both sides of the base.

4. The corrective exercise device for preventing foot drop according to claim 1, characterized in that, Both the push rod A and the pull rod are rods that extend and retract in a straight direction and are limited after extension and retraction, including one or more of the following: electric push rod, hydraulic push rod, pneumatic push rod, pin telescopic rod, and spring pin telescopic rod.

5. The corrective exercise device for preventing foot drop according to claim 1, characterized in that, The transmission mechanism includes a transmission component, a drive wheel, a transmission wheel, and a drive component B; the transmission wheel is fixedly connected to the top end of the threaded rod A; the drive component B is fixedly installed at the top center of the bracket C, outputting bidirectional rotary motion to drive the drive wheel to rotate; the drive wheel is located between the two transmission wheels; the transmission component meshes with the drive wheel and the two transmission wheels; the transmission component and the transmission wheel are a belt and a pulley, or a chain and a sprocket.

6. The corrective exercise device for preventing foot drop according to claim 1, characterized in that, Both ends of the calf pad and both ends of the foot plate are fixedly connected to outwardly protruding sleeves; both ends of the pull rod are fixedly connected to sleeves; the sleeves are adapted to the sleeves; the two pull rods are respectively rotatably sleeved on the sleeves on the same side through the sleeves at both ends; the extension and retraction of the pull rods drive the foot plate to rotate relative to the calf pad.

7. The corrective exercise device for preventing foot drop according to claim 1, characterized in that, The lower leg pad is fixedly connected to slide rails on both sides of its end; a sliding column is fixedly connected to the outer wall of the slide rail; the sliding column is a cylindrical structure that is adapted to the slide rail and is sleeved inside the slide rail, and drives the end of the lower leg pad to rise and fall by lifting and rotating relative to the lower leg pad.

8. The corrective exercise device for preventing foot drop according to claim 1, characterized in that, The thigh pad and the lower leg pad are respectively fixedly connected to a limiting block and a rotating block at their adjacent ends; the limiting block has several circumferentially spaced limiting holes; after the thigh pad and the lower leg pad rotate, they are limited by inserting pins or spring pins into the limiting holes and the rotating block, or by tightening bolts.

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