Exercise device for ankle rehabilitation in orthopedics department

Abstract

The invention relates to the technical field of ankle rehabilitation devices, and discloses an orthopedic ankle rehabilitation exercise device which comprises a rehabilitation device shell and a rehabilitation device shell bottom, the rehabilitation device shell bottom is fixedly connected to the bottom of the rehabilitation device shell, and the top of the rehabilitation device shell is provided with a fixing assembly used for fixing the legs of a user at multiple angles. The top of the rehabilitation device shell is provided with an anti-reversion assembly used for assisting the fixing assembly to fix the legs, through the arrangement of the fixing assembly and the anti-reversion assembly, the effect of fixing the legs of the patient at multiple angles is achieved, and the situation that when the legs of the patient conduct actions of natural forms such as bending and twisting, the ankle rehabilitation device falls off, and the rehabilitation effect is affected is avoided. Secondly, the gear ring can only rotate in the preset direction when the leg fixing device is used, so that the stability of the leg fixing device in the using process is guaranteed, and meanwhile, the patient can easily fix and adjust the leg fixing device by rotating the handle.

Description

Technical Field

[0001] The invention relates to the field of foot and ankle rehabilitation devices, and in particular to an exercise device for orthopedic foot and ankle rehabilitation. Background Art

[0002] The orthopedic foot and ankle rehabilitation training device is a device specially used for rehabilitation training of the foot and ankle (including the ankle joint and foot). It is mainly aimed at patients with foot and ankle injuries (such as fractures, sprains, tendon injuries, etc.) or postoperative patients to help them restore the normal functions of the foot and ankle, such as joint mobility, muscle strength, balance ability, etc.

[0003] Traditional orthopedic foot and ankle rehabilitation exercise devices only provide simple fixation methods when fixing the patient's legs, such as tying them at several fixed positions with straps. This fixation method is difficult to adjust according to the specific shape and angle of the patient's legs. When the patient's legs are performing natural movements such as bending and twisting, the foot and ankle rehabilitation device is likely to fall off. In addition, traditional devices often lack an effective response mechanism to changes in leg diameter. When the diameter of the patient's legs gradually shrinks due to swelling, if the fixing device is of a fixed size, it will become loose and cannot effectively fix the legs, affecting the safety and accuracy of rehabilitation exercises. If the fixation is too tight, it will cause pain to the patient. It brings discomfort and may even affect blood circulation in severe cases. At the same time, traditional orthopedic foot and ankle rehabilitation devices are insufficient in the stability of the fixed structure. Many traditional devices are not specifically designed to prevent reverse rotation. During use, if they are disturbed by external forces or the patient's inadvertent movements, the transmission structure inside the device may rotate in the opposite direction. For example, some devices rely on simple mechanical connections or friction to maintain a fixed position. When the patient has inappropriate leg movements or is accidentally hit during rehabilitation training, it is easy to cause the fixing device to loosen or even fall off, which will not only affect the normal progress of rehabilitation training, but also cause secondary injuries to the patient.

[0004] Traditional orthopedic foot and ankle rehabilitation devices mostly focus on fixation, protection and limited joint mobility training of injured ankles, and often lack effective walking assistance functions. For patients with ankle injuries who cannot walk normally, it is very difficult to walk on their own in the early or middle stages of rehabilitation, and the injury may even be aggravated by excessive force. In addition, traditional devices do not have a special structure designed for walking assistance, so that patients cannot get enough support when trying to walk, affecting the rehabilitation process and the patient's rehabilitation experience. Even if some traditional devices have a certain walking assistance function, their assistance methods are relatively simple, such as simply providing a fixed support force, which cannot be adjusted according to the patient's specific gait, weight, injury severity and other factors.

[0005] When patients injure their foot and ankle, they are in the early stages of rehabilitation or have poor body balance, which makes them prone to falling. Traditional orthopedic foot and ankle rehabilitation devices are usually not designed specifically to deal with patients' falling situations. During use, if the patient accidentally loses balance and falls, the device cannot respond effectively, causing injury to the patient.

[0006] Therefore, it is necessary to provide an orthopedic foot and ankle rehabilitation exercise device to solve the above problems. Summary of the invention

[0007] In view of the deficiencies in the prior art, an object of the present invention is to provide an orthopedic foot and ankle rehabilitation exercise device.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an orthopedic foot and ankle rehabilitation exercise device, comprising a rehabilitation device shell and a rehabilitation device shell bottom, wherein the rehabilitation device shell bottom is fixedly connected to the bottom of the rehabilitation device shell, the top of the rehabilitation device shell is provided with a fixing component for fixing the user's legs at multiple angles, the top of the rehabilitation device shell is provided with an anti-reversal component for assisting the fixing component in fixing the legs, the bottom of the rehabilitation device shell bottom is provided with a power assist component for assisting the user in walking, and the bottom of the rehabilitation device shell bottom is provided with an anti-dumping component for preventing the user from tipping over.

[0009] Preferably, the fixing assembly includes a positioning block, which is fixedly connected to the top of the rehabilitation device shell, and the interior of the positioning block is rotatably connected to a gear ring, the interior of the gear ring is provided with an arc groove in a ring shape, the interior of the arc groove is slidably connected to an L-shaped connecting block group, and the interior of the positioning block is fixedly connected to a fixing ring.

[0010] Preferably, the fixing assembly also includes a groove block group, the groove block group is slidably connected to the bottom of the L-shaped connecting block group, a first return spring is fixedly connected between the groove block group and the L-shaped connecting block group, one end of the groove block group away from the L-shaped connecting block group is fixedly connected to the limiting block group, one end of the limiting block group away from the groove block group is fixedly connected to the second return spring, and one end of the second return spring away from the limiting block group is connected to the resistance block group.

[0011] Preferably, the anti-reversal component includes a rotating button, which is rotatably connected to the inside of the positioning block, the bottom of the rotating button is fixedly connected to a gear plate, the middle of the rotating button is fixedly connected to a one-way gear, the inside of the positioning block is rotatably connected to a limiting rod, and a torsion spring is provided between the limiting rod and the positioning block, and the top of the limiting rod is fixedly connected to a rotating handle.

[0012] Preferably, the power-assisting assembly includes a power-assisting plate, which is rotatably connected to the bottom of the rehabilitation device shell. A truncated cone-shaped groove is provided on one side of the power-assisting plate close to the bottom of the rehabilitation device shell, and a power-assisting spring is fixedly connected between the power-assisting plate and the bottom of the rehabilitation device shell.

[0013] Preferably, the anti-dumping assembly includes a distance-increasing block group, which is slidably connected to the bottom of the rehabilitation device shell, and a third return spring is fixedly connected between the distance-increasing block group and the bottom of the rehabilitation device shell, a double-layer slide groove is provided inside the distance-increasing block group, and an electromagnet block is symmetrically fixedly connected inside the double-layer slide groove, and a trapezoidal metal slide rod group is slidably connected inside the double-layer slide groove, and a limiting column is fixedly connected inside the bottom of the rehabilitation device shell, and a fourth return spring is fixedly connected between the trapezoidal metal slide rod group and the distance-increasing block group.

[0014] Preferably, the anti-dumping assembly also includes a detection block, which is fixedly connected to the outer wall of the rehabilitation device shell and the bottom of the rehabilitation device shell, and an inclined groove is opened inside the detection block, and conductive blocks are symmetrically fixedly connected to both ends of the inclined groove, and a trigger ball is slidably connected to the inside of the inclined groove.

[0015] Preferably, the L-shaped connection block group and the groove block group are both slidably connected to the top of the fixing ring, and the interference block group is rotationally connected to an end of the groove block group away from the L-shaped connection block group.

[0016] Preferably, the gear plate is meshed with the gear ring, and the rotating handle is rotatably connected to the top of the positioning block.

[0017] Preferably, the trigger ball is electrically connected to a power source used by the device, the conductive block is electrically connected to the electromagnet block, and the magnetic poles of the electromagnet block and the trapezoidal metal slide rod group are opposite.

[0018] The invention provides an orthopedic foot and ankle rehabilitation exercise device. Compared with the prior art, the invention has the following beneficial effects: 1. Through the arrangement of a fixing component and an anti-reversal component, when a patient is in the recovery stage of an ankle injury, twisting the rotating button can cause the gear ring to drive the L-shaped connecting block group to move through the arc groove, thereby causing the L-shaped connecting block group to push the groove block group and the interference block group to interfere with the patient's legs. The interference block group can fix the patient's legs at multiple angles. Compared with traditional orthopedic foot and ankle rehabilitation exercise devices, this invention avoids the foot and ankle rehabilitation device from falling off when the patient's legs are performing natural movements such as bending and twisting.

[0019] Secondly, because each patient's leg thickness, muscle development and swelling after injury are different, traditional devices often lack adaptability to changes in leg diameter when fixing the legs. The setting of the limit block group and the second return spring achieves the purpose of more closely fixing the patient's legs. This fixation method can effectively improve the accuracy and comfort of fixation according to individual differences of patients, which helps to improve the rehabilitation effect.

[0020] Secondly, the setting of the one-way gear, the limit rod and the rotating handle prevents the gear ring from rotating in the opposite direction during the use of the orthopedic foot and ankle rehabilitation exercise device, which may cause the foot and ankle rehabilitation device to fall off. The design of the one-way gear can strictly limit the rotation direction of the gear ring. When in use, the gear ring can only rotate in the predetermined direction, thereby ensuring the stability of the device during use. Compared with traditional devices, this one-way control is more precise and will not cause the fixed structure of the device to fail due to unexpected reverse force. The one-way gear is not easily affected by factors such as wear and aging, and can maintain good performance during long-term use, reducing the probability of failure of the device due to reverse rotation. At the same time, the patient can easily fix and adjust the device by turning the handle.

[0021] 2. Through the setting of the power-assisting component, when the patient uses the foot and ankle rehabilitation device and cannot walk normally due to ankle injuries, the foot and ankle rehabilitation device will compress the power-assisting spring through the power-assisting plate, and then assist the patient to walk normally through the rebound force of the power-assisting spring. The design of the power-assisting plate and the power-assisting spring can provide power assistance according to the patient's actual actions. When the patient tries to walk, the weight of the body acts on the foot and ankle rehabilitation device, causing the power-assisting plate to compress the power-assisting spring. This compression based on the patient's own movements can accurately sense the patient's walking intention. Compared with traditional devices, this design is more in line with the patient's actual needs, because it does not provide a fixed external force, but dynamically provides assistance according to the patient's force when walking. Whether it is starting, taking a step or landing, it can provide appropriate force when the patient needs it, effectively reducing the patient's walking burden.

[0022] Secondly, the weight, ankle injury and walking habits of different patients are different. The assist spring of this device can be adjusted according to the specific situation of the patient. For example, patients with heavier weight can use assist springs with larger elastic coefficients to obtain sufficient supporting force; patients with more serious injuries and weaker muscle strength can also obtain a more appropriate degree of assistance by adjusting the spring.

[0023] Secondly, the assistive method of the rebound force of the power-assisting spring can allow patients to feel a more natural power-assisting effect during walking. Different from some traditional electric power-assisting devices or rigid mechanical support devices, the elastic force of the spring can simulate the synergistic effect of human joints and muscles during normal walking.

[0024] 3. Through the setting of the anti-dumping component, when the patient falls while using the foot and ankle rehabilitation device, the trigger ball will energize the electromagnet block through the conductive block due to the tipping of the foot and ankle rehabilitation device, and then the electromagnet block will push the trapezoidal metal slide bar group with opposite magnetic poles to slide into the double-layer slide groove, and the trapezoidal metal slide bar group will break away from the restriction of the internal limit column of the bottom of the rehabilitation device shell, so that the third return spring pushes the distance increasing block group to move, and then the distance increasing block group quickly increases the force area of ​​the bottom of the rehabilitation device shell, thereby avoiding the patient and the foot and ankle rehabilitation device from tipping over. The design of the trigger ball can keenly sense the tipping of the rehabilitation device. When the device begins to tilt, the trigger ball will move due to gravity and the change in the tilt angle of the device, and quickly energize the electromagnet block through cooperation with the conductive block. Moreover, this detection method based on physical principles is very sensitive and can respond in the early stage of the device tipping over. Compared with traditional devices without any tipping detection means, it can activate the protection mechanism earlier and effectively reduce the risk of patients falling.

[0025] Secondly, the increase in force-bearing area by the distance-increasing block group can not only prevent the device from continuing to tip over, but also cushion the impact force when the patient falls to a certain extent. Even if tipping cannot be completely avoided, it can reduce the severity of the patient's fall and protect the patient's ankles and other parts of the body from more serious injuries, further improving the safety performance of the device.

[0026] At the same time, when the protection mechanism of the distance increasing block group is triggered, the patient can push the distance increasing block group toward the bottom of the rehabilitation device shell again, and then the trapezoidal metal sliding rod group will resist the limiting column at the bottom of the rehabilitation device shell and slide into the double-layer sliding groove, finally achieving the purpose of resetting the whole, which is convenient for preventing the ankle rehabilitation device from tipping over again in the future. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the position relationship of the overall device of the present invention.

[0028] Figure 2 It is a cross-sectional view of the overall device of the present invention.

[0029] Figure 3 It is a schematic diagram of the positional relationship among the housing, fixing assembly and anti-reversal assembly of the rehabilitation device of the present invention.

[0030] Figure 4 It is a schematic diagram of the positional relationship between the fixing component and the anti-reversal component of the present invention.

[0031] Figure 5 For the present invention Figure 4 A magnified view of the structure in the middle.

[0032] Figure 6It is a schematic diagram of the position relationship of the fixing components of the present invention.

[0033] Figure 7 It is a schematic diagram of the positional relationship among the L-shaped connecting block group, the groove block group and the fixing ring of the present invention.

[0034] Figure 8 It is a schematic diagram of the position relationship of the groove block group, the limit block group, the second return spring, and the resistance block group of the present invention.

[0035] Fig. 9 It is a schematic diagram of the positional relationship between the housing bottom and the power-assisting assembly of the rehabilitation device of the present invention.

[0036] Fig.10 It is a schematic diagram of the positional relationship between the bottom of the housing of the rehabilitation device of the present invention and the truncated cone-shaped groove.

[0037] Fig.11 It is a schematic diagram of the positional relationship between the bottom of the housing of the rehabilitation device of the present invention and the anti-dumping assembly.

[0038] Fig.12 It is a schematic diagram of the position relationship of the anti-dumping components of the present invention.

[0039] Fig.13 For the present invention Fig.12 Enlarged view of the structure at point B in the middle.

[0040] Fig.14 It is a schematic diagram of the positional relationship between the housing and the anti-dumping assembly of the rehabilitation device of the present invention.

[0041] Fig.15 This is a schematic diagram of the position relationship among the detection block, inclined slot, conductive block and trigger ball of the present invention.

[0042] Figure numerals: 11, rehabilitation device housing; 12, rehabilitation device housing bottom.

[0043] The fixing assembly includes: 21, a positioning block; 22, a gear ring; 23, an arc groove; 24, an L-shaped connecting block group; 25, a groove block group; 26, a first return spring; 27, a limit block group; 28, a second return spring; 29, a resistance block group; 210, a fixing ring.

[0044] The anti-reversal component includes: 31, a rotating button; 32, a gear plate; 33, a one-way gear; 34, a limit rod; 35, a rotating handle.

[0045] The power assist component includes: 41, a power assist plate; 42, a truncated cone-shaped groove; 43, a power assist spring.

[0046] The anti-dumping assembly includes: 51, a distance-increasing block group; 52, a third return spring; 53, a double-layer slide groove; 54, an electromagnet block; 55, a trapezoidal metal slide rod group; 56, a fourth return spring; 57, a detection block; 58, a tilting groove; 59, a conductive block; and 510, a trigger ball. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] In the description of the present invention, the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0049] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0050] Implementation example Figures 1 to 15 As shown, an orthopedic foot and ankle rehabilitation exercise device provided by an embodiment of the present invention includes a rehabilitation device shell 11 and a rehabilitation device shell bottom 12. The rehabilitation device shell bottom 12 is fixedly connected to the bottom of the rehabilitation device shell 11. The top of the rehabilitation device shell 11 is provided with a fixing component for fixing the user's legs at multiple angles. The top of the rehabilitation device shell 11 is provided with an anti-reversal component for assisting the fixing component in fixing the legs. The bottom of the rehabilitation device shell bottom 12 is provided with a power assist component for assisting the user in walking. The bottom of the rehabilitation device shell bottom 12 is provided with an anti-dumping component for preventing the user from tipping over.

[0051] The fixing assembly includes a positioning block 21, which is fixedly connected to the top of the rehabilitation device shell 11. The positioning block 21 is internally rotatably connected to a gear ring 22, the interior of the gear ring 22 is provided with an arc groove 23 in a ring shape, the interior of the arc groove 23 is slidably connected to an L-shaped connecting block group 24, and the interior of the positioning block 21 is fixedly connected to a fixing ring 210.

[0052] The fixing assembly also includes a groove block group 25, which is slidably connected to the bottom of the L-shaped connecting block group 24. A first return spring 26 is fixedly connected between the groove block group 25 and the L-shaped connecting block group 24. One end of the groove block group 25 away from the L-shaped connecting block group 24 is fixedly connected to a limiting block group 27. One end of the limiting block group 27 away from the groove block group 25 is fixedly connected to a second return spring 28. One end of the second return spring 28 away from the limiting block group 27 is connected to a resistance block group 29.

[0053] The anti-reversal component includes a rotating button 31, which is rotatably connected to the inside of the positioning block 21. The bottom of the rotating button 31 is fixedly connected to a gear plate 32, and the middle of the rotating button 31 is fixedly connected to a one-way gear 33. The interior of the positioning block 21 is rotatably connected to a limiting rod 34, and a torsion spring is provided between the limiting rod 34 and the positioning block 21. The top of the limiting rod 34 is fixedly connected to a rotating handle 35.

[0054] The power assist assembly includes a power assist plate 41, which is rotatably connected to the bottom of the rehabilitation device shell bottom 12. A truncated cone-shaped groove 42 is provided on one side of the power assist plate 41 and the rehabilitation device shell bottom 12, and a power assist spring 43 is fixedly connected between the power assist plate 41 and the rehabilitation device shell bottom 12.

[0055] The anti-dumping assembly includes a distance increasing block group 51, which is slidably connected to the bottom of the rehabilitation device shell bottom 12, and a third reset spring 52 is fixedly connected between the distance increasing block group 51 and the rehabilitation device shell bottom 12. A double-layer slide groove 53 is opened inside the distance increasing block group 51, and an electromagnet block 54 is symmetrically fixedly connected inside the double-layer slide groove 53. A trapezoidal metal slide rod group 55 is slidably connected inside the double-layer slide groove 53, and a limiting column is fixedly connected inside the rehabilitation device shell bottom 12, and a fourth reset spring 56 is fixedly connected between the trapezoidal metal slide rod group 55 and the distance increasing block group 51.

[0056] The anti-dumping assembly also includes a detection block 57, which is fixedly connected to the outer wall of the rehabilitation device shell 11 and the rehabilitation device shell bottom 12. An inclined groove 58 is opened inside the detection block 57, and conductive blocks 59 are symmetrically fixedly connected to the two ends of the inclined groove 58. A trigger ball 510 is slidably connected inside the inclined groove 58.

[0057] The L-shaped connecting block group 24 and the groove block group 25 are both slidably connected to the top of the fixing ring 210, so that the L-shaped connecting block group 24 and the groove block group 25 can slide in a limited position on the top of the fixing ring 210, and the resistance block group 29 is rotatably connected to the end of the groove block group 25 away from the L-shaped connecting block group 24, so that the resistance block group 29 can fit the patient's leg.

[0058] The gear plate 32 is meshed with the gear ring 22, so that the gear plate 32 drives the gear ring 22 to rotate during its rotation. The rotating handle 35 is rotatably connected to the top of the positioning block 21, so that the patient can easily fix and contact the foot and ankle rehabilitation device.

[0059] There is an electrical connection between the trigger ball 510 and the power supply used by the device, and there is an electrical connection between the conductive block 59 and the electromagnet block 54. After the trigger ball 510 hits the conductive block 59, the electromagnet block 54 can be energized. The magnetic poles of the electromagnet block 54 and the trapezoidal metal slide bar group 55 are opposite, so that after the electromagnet block 54 is energized, it will push the trapezoidal metal slide bar group 55 to move.

[0060] Working principle: In the initial state, the first return spring 26, the second return spring 28, the assist spring 43, and the fourth return spring 56 are not compressed, the third return spring 52 is compressed, the electromagnet block 54 is in conflict with the trapezoidal metal slide bar group 55, and the trigger ball 510 is not in conflict with the two conductive blocks 59.

[0061] During operation, the patient first needs to insert his feet into the rehabilitation device housing 11 , so that the patient's legs are located in the positioning block 21 , and then the patient turns the rotary button 31 to fix the patient's legs in the rehabilitation device housing 11 .

[0062] When the patient turns the rotating button 31, the rotating button 31 will drive the gear plate 32 at the bottom to rotate synchronously. Since the gear plate 32 is meshed with the gear ring 22, the gear plate 32 will drive the gear ring 22 to rotate during its rotation. Subsequently, the gear ring 22 moves by contacting the L-shaped connecting block group 24 through the arc groove 23. At this time, the L-shaped connecting block group 24 drives the groove block group 25 to slide along the top of the fixing ring 210 toward the center of the positioning block 21.

[0063] During the movement of the groove block group 25, the resistance block group 29 will be driven to resist the patient's legs. Because the thickness of each patient's legs, the degree of muscle development and the swelling after injury are different, the resistance block group 29 will gradually compress the first return spring 26 after resisting the patient's legs, so that the resistance block group 29 is first fixed according to the thickness of the patient's legs, and then the resistance block group 29 will synchronously compress the second return spring 28, so that the resistance block group 29 fits the patient's legs more closely, thereby making the rehabilitation device shell 11 and the patient's legs more firmly fixed, avoiding the rehabilitation device shell 11 from falling off when the patient's legs are performing natural movements such as bending and twisting.

[0064] The purpose of more closely fitting fixation of the patient's legs is achieved, and this fixation method can effectively improve the accuracy and comfort of fixation according to individual differences of patients, which helps to improve the rehabilitation effect.

[0065] At the same time, when the patient turns the rotating button 31, since a torsion spring is arranged between the limit rod 34 and the positioning block 21, the one-way gear 33 will be driven to continuously move the limit rod 34 during the rotation of the rotating button 31, so that the one-way gear 33 limits the rotating button 31 to only rotate in one direction at this time, thereby making the rotating button 31 drive the gear plate 32 to mesh with the gear ring 22 stably, and preventing the gear ring 22 from rotating in the opposite direction after being subjected to the force.

[0066] When the staff needs to take off the rehabilitation device shell 11, the staff only needs to turn the handle 35 to turn the limit rod 34 to make the limit rod 34 disengage from the restriction on the one-way gear 33, and then the one-way gear 33 can no longer continue to limit the one-way gear 33 to only rotate in one direction. Finally, in the opposite way to the above-mentioned movement process, the rotation button 31 is rotated in the reverse direction to achieve the purpose of moving the resistance block group 29 away from the patient's legs, thereby achieving the effect of taking off the rehabilitation device shell 11.

[0067] This prevents the gear ring 22 from rotating in the opposite direction during use of the rehabilitation device shell 11, which may cause the rehabilitation device shell 11 to fall off. The design of the one-way gear 33 can strictly limit the rotation direction of the gear ring 22. When in use, the gear ring 22 can only rotate in a predetermined direction, thereby ensuring the stability of the device during use. At the same time, the patient can easily fix and adjust the device by turning the handle 35.

[0068] Through the setting of the power-assisting component, when the patient uses the rehabilitation device shell 11 to walk, the power-assisting plate 41 will first touch the ground, and then the power-assisting plate 41 will compress the power-assisting spring 43 toward the bottom 12 of the rehabilitation device shell, and finally the rebound force of the power-assisting spring 43 will assist the patient to walk normally. The design of the power-assisting plate 41 and the power-assisting spring 43 can provide power-assistance according to the actual action of the patient. Compared with traditional devices, this design is more in line with the actual needs of patients because it does not provide a fixed external force, but dynamically provides assistance according to the force applied by the patient when walking.

[0069] Secondly, the booster spring 43 of the device can be adjusted according to the patient's weight and ankle injury. For example, a patient with a heavier weight can use a booster spring 43 with a larger elastic coefficient to obtain sufficient supporting force; patients with more serious injuries and weaker muscle strength can also obtain a more appropriate degree of assistance by adjusting the booster spring 43.

[0070] When the patient is using the rehabilitation device shell 11, if the patient falls, the trigger ball 510 will first slide along the inside of the inclined groove 58 due to the tilting of the rehabilitation device shell 11, and then the trigger ball 510 will quickly hit the conductive block 59 on the tilting side. Because there is an electrical connection between the trigger ball 510 and the power supply of the equipment, and there is an electrical connection between the conductive block 59 and the electromagnet block 54, when the trigger ball 510 hits the conductive block 59, the conductive block 59 energizes the electromagnet block 54, and the magnetic poles of the electromagnet block 54 and the trapezoidal metal slide bar group 55 are opposite, at this time, the electromagnet block 54 will push the trapezoidal metal slide bar group 55 to move along the inside of the double-layer slide groove 53 after being energized.

[0071] After the trapezoidal metal slide bar group 55 slides into the interior of the double-layer slide groove 53, the trapezoidal metal slide bar group 55 loses the restriction of the internal limit column of the bottom shell 12 of the rehabilitation device, so that the compressed third return spring 52 elastically stretches to push the distance increasing block group 51 to move, thereby causing the distance increasing block group 51 to quickly increase the force-bearing area of ​​the bottom shell 12 of the rehabilitation device, thereby avoiding the patient and the rehabilitation device shell 11 from tipping over, and effectively reducing the risk of the patient falling.

[0072] Secondly, the increase in force-bearing area by the distance-increasing block group 51 can not only prevent the device from continuing to tip over, but also cushion the impact force when the patient falls to a certain extent. Even if tipping cannot be completely avoided, it can reduce the severity of the patient's fall and protect the patient's ankles and other parts of the body from more serious injuries, thereby further improving the safety performance of the device.

[0073] At the same time, when the protection mechanism of the distance increasing block group 51 is triggered, the patient can push the distance increasing block group 51 toward the bottom 12 of the rehabilitation device shell again, and then the trapezoidal metal slide bar group 55 will resist the limiting column of the bottom 12 of the rehabilitation device shell, causing the trapezoidal metal slide bar group 55 to slide toward the inside of the double-layer slide groove 53, and at the same time, the distance increasing block group 51 will compress the third return spring 52 again.

[0074] When the trapezoidal metal slide bar group 55 moves to the inside of the double-layer slide groove 53, the fourth reset spring 56 will be gradually compressed. After the trapezoidal metal slide bar group 55 can no longer contact the limiting column of the bottom shell 12 of the rehabilitation device, the fourth reset spring 56 will elastically stretch and push the trapezoidal metal slide bar group 55 to move away from the double-layer slide groove 53, so that the trapezoidal metal slide bar group 55 will contact the limiting column of the bottom shell 12 of the rehabilitation device, so that the position of the distance increasing block group 51 is restricted again, thereby achieving the purpose of resetting the distance increasing block group 51, which is convenient for preventing the rehabilitation device shell 11 from tipping over again in the future.

[0075] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the subject matter of the invention. These embodiments and their variations are included in the scope and subject matter of the invention, and are included in the invention described in the claims and the scope of their equivalents.

[0076] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An orthopedic foot and ankle rehabilitation exercise device, comprising a rehabilitation device housing (11) and a rehabilitation device housing bottom (12), wherein the rehabilitation device housing bottom (12) is fixedly connected to the bottom of the rehabilitation device housing (11), characterized in that: The top of the rehabilitation device shell (11) is provided with a fixing component for fixing the user's legs at multiple angles, the top of the rehabilitation device shell (11) is provided with an anti-reversal component for assisting the fixing component in fixing the legs, the bottom of the rehabilitation device shell bottom (12) is provided with a power assist component for assisting the user in walking, and the bottom of the rehabilitation device shell bottom (12) is provided with an anti-dumping component for preventing the user from tipping over.

2. The orthopedic foot and ankle rehabilitation exercise device according to claim 1, characterized in that: The fixing assembly comprises a positioning block (21), the positioning block (21) being fixedly connected to the top of the rehabilitation device housing (11), the positioning block (21) being rotatably connected to a gear ring (22) inside, the gear ring (22) being provided with an arcuate groove (23) in an annular shape inside, the arcuate groove (23) being slidably connected to an L-shaped connecting block group (24), and the positioning block (21) being fixedly connected to a fixing ring (210) inside.

3. The orthopedic foot and ankle rehabilitation exercise device according to claim 2, characterized in that: The fixing assembly further comprises a groove block group (25), the groove block group (25) being slidably connected to the bottom of the L-shaped connecting block group (24), a first return spring (26) being fixedly connected between the groove block group (25) and the L-shaped connecting block group (24), an end of the groove block group (25) away from the L-shaped connecting block group (24) being fixedly connected to a limit block group (27), an end of the limit block group (27) away from the groove block group (25) being fixedly connected to a second return spring (28), and an end of the second return spring (28) away from the limit block group (27) being connected to a resistance block group (29).

4. The orthopedic foot and ankle rehabilitation exercise device according to claim 2, characterized in that: The anti-reversal component comprises a rotating button (31), the rotating button (31) is rotatably connected to the inside of the positioning block (21), the bottom of the rotating button (31) is fixedly connected to a gear plate (32), the middle of the rotating button (31) is fixedly connected to a one-way gear (33), the interior of the positioning block (21) is rotatably connected to a limiting rod (34), a torsion spring is provided between the limiting rod (34) and the positioning block (21), and the top of the limiting rod (34) is fixedly connected to a rotating handle (35).

5. The orthopedic foot and ankle rehabilitation exercise device according to claim 1, characterized in that: The power assist assembly comprises a power assist plate (41), the power assist plate (41) being rotatably connected to the bottom of the rehabilitation device shell bottom (12), a truncated cone-shaped groove (42) being provided on one side of the power assist plate (41) close to the rehabilitation device shell bottom (12), and a power assist spring (43) being fixedly connected between the power assist plate (41) and the rehabilitation device shell bottom (12).

6. The orthopedic foot and ankle rehabilitation exercise device according to claim 1, characterized in that: The anti-dumping assembly comprises a distance increasing block group (51), the distance increasing block group (51) is slidably connected to the bottom of the rehabilitation device shell bottom (12), a third return spring (52) is fixedly connected between the distance increasing block group (51) and the rehabilitation device shell bottom (12), a double-layer slide groove (53) is provided inside the distance increasing block group (51), an electromagnet block (54) is symmetrically fixedly connected inside the double-layer slide groove (53), a trapezoidal metal slide rod group (55) is slidably connected inside the double-layer slide groove (53), a limiting column is fixedly connected inside the rehabilitation device shell bottom (12), and a fourth return spring (56) is fixedly connected between the trapezoidal metal slide rod group (55) and the distance increasing block group (51).

7. The orthopedic foot and ankle rehabilitation exercise device according to claim 6, characterized in that: The anti-dumping assembly further comprises a detection block (57), the detection block (57) being fixedly connected to the outer wall of the rehabilitation device housing (11) and the rehabilitation device housing bottom (12), an inclined groove (58) being provided inside the detection block (57), conductive blocks (59) being symmetrically fixedly connected to both ends of the inclined groove (58), and a trigger ball (510) being slidably connected inside the inclined groove (58).

8. The orthopedic foot and ankle rehabilitation exercise device according to claim 3, characterized in that: The L-shaped connection block group (24) and the groove block group (25) are both slidably connected to the top of the fixing ring (210), and the abutment block group (29) is rotationally connected to an end of the groove block group (25) away from the L-shaped connection block group (24).

9. The orthopedic foot and ankle rehabilitation exercise device according to claim 4, characterized in that: The gear plate (32) is meshed with the gear ring (22), and the rotating handle (35) is rotatably connected to the top of the positioning block (21).

10. The orthopedic foot and ankle rehabilitation exercise device according to claim 7, characterized in that: The trigger ball (510) is electrically connected to a power source used by the device, the conductive block (59) is electrically connected to the electromagnet block (54), and the magnetic poles of the electromagnet block (54) and the trapezoidal metal slide rod group (55) are opposite.

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