Rehabilitation device suitable for exercise after lower limb fracture healing of old people

Abstract

The invention discloses a rehabilitation device suitable for exercise after lower limb fracture healing of old people, which is applied to the field of physical therapy devices, and comprises a rehabilitation bracket, and through the cooperation of an intelligent rehabilitation system, an upper arc clamp, a lower arc clamp and an exercise rehabilitation group, intelligent and personalized rehabilitation training support can be provided for the old people depending on the related data after healing of the old people, and the rehabilitation effect of the old people is improved. In the initial stage of rehabilitation, intelligent exercise action instructions can be accurately generated, old people can be orderly guided and driven to complete lower limb rehabilitation movement, the risk of secondary injury caused by nonstandard actions is effectively avoided, the recovery process of lower limb functions is practically assisted, and the rehabilitation effect is improved in the later stage of rehabilitation. Meanwhile, the elderly can be gradually guided to regain the ability and confidence of autonomous exercise, the stability and effectiveness of follow-up autonomous walking of the elderly are guaranteed, then a scientific exercise mode is achieved, and the whole rehabilitation process better conforms to the physical characteristics and requirements of the elderly.

Description

Technical Field

[0001] This invention relates to the field of physiotherapy devices, and in particular to a rehabilitation device suitable for elderly people recovering from lower limb fractures. Background Technology

[0002] To address the rehabilitation needs of elderly patients recovering from lower limb fractures, modern medical technology has developed a variety of intelligent and personalized rehabilitation devices. Existing technology CN116173466B discloses a rehabilitation training device for patients with lower limb fractures. Lower limb rehabilitation training can be performed by stepping on a pedal and repeatedly kicking the leg. When the patient can easily step on the pedal, the pedal compresses the second screw upwards, causing a convex block to rotate. This convex block drives a one-way gear and the first screw to rotate, causing a sliding block to move downwards. This increases the compression degree of the first compression spring, thereby automatically and precisely increasing the training intensity to an appropriate level, which is easily adjustable.

[0003] CN114949771A also discloses a self-exercising device for patients after lower limb fracture surgery. It adopts a multi-component cooperative design, which not only uses the weight of the lower limb to limit its position when the patient places it on the device surface, allowing the patient to use the device alone, but also uses multi-functional components to massage the surrounding tissues of the lower limb during exercise to accelerate blood flow and promote the patient's recovery process. During exercise, sensors record the force on the lower limb and count the number of effective movements, allowing medical staff to make targeted adjustments based on the exercise data and accelerate the patient's recovery.

[0004] However, existing rehabilitation devices for lower limb fractures in the elderly rely primarily on the elderly's own active movements, which is insufficient to effectively meet rehabilitation needs and can even cause secondary injuries during self-directed rehabilitation exercises, hindering the recovery of the affected area. Therefore, this application proposes a rehabilitation device suitable for lower limb fracture rehabilitation exercises in the elderly. This device can assist the elderly in performing progressive rehabilitation exercises, achieving a scientific exercise effect, avoiding secondary injuries, and ensuring the best possible recovery. Summary of the Invention

[0005] The core of this invention lies in solving the problem that existing technologies mainly rely on the elderly's own initiative to move, which cannot effectively meet rehabilitation needs and may cause secondary damage during self-rehabilitation exercises, thus hindering the recovery of the affected area. At the same time, the rehabilitation device is easy to wear and remove, making it suitable for elderly people to use alone.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A rehabilitation device suitable for lower limb fracture rehabilitation exercises in the elderly includes a rehabilitation frame. A rehabilitation controller is installed on the front side of the upper end of the rehabilitation frame. An arc-shaped locking block is connected to the rear end of the rehabilitation controller. A pair of connecting plates are fixedly connected to the lower end of the arc-shaped locking block. Multiple upper arc-shaped locking blocks are connected to the lower end of the connecting plates. Exercise rehabilitation groups are installed on both the left and right ends of the upper arc-shaped locking blocks. Multiple lower arc-shaped locking blocks are connected to the lower end of the exercise rehabilitation groups. Each exercise rehabilitation group includes an upper adjustment plate that is slidably connected to the left and right ends of the upper arc-shaped locking blocks. Lower adjustment plates corresponding to the upper adjustment plates are slidably connected to the left and right ends of the lower arc-shaped locking blocks. A rehabilitation column is fixedly connected to the upper end of the lower adjustment plate. An angled collar that is fixedly connected to the upper adjustment plate is rotatably fitted onto the upper end of the rehabilitation column. An installation block is fixedly connected to the end of the angle-splitting collar away from the upper arc clip. A rehabilitation motor is fixedly installed on the end of the installation block away from the upper arc clip. The output shaft of the rehabilitation motor is fixedly connected to a rotating shaft that matches the rehabilitation column. An angle-splitting sensing groove is opened at the lower end of the angle-splitting collar, corresponding to the position of the isolation block. Safety arc grooves and multiple sensing grooves are opened on the front and rear sides of the inner wall of the angle-splitting sensing groove, and an angle sensing group is set in each sensing groove. A safety brake block is slidably installed inside the safety arc groove, and a limiting strip that cooperates with the safety brake block is fixedly connected to the outer end of the rehabilitation column; An electromagnetic drive bar for adjusting the position of the safety brake block is provided in the safety arc groove. The safety brake block is equipped with a trigger switch. The trigger switch includes a normally open contact and a normally closed contact. When the normally open contact contacts the limit bar, it triggers a first signal. The two are connected by a guide slide and are elastically set on the safety brake block. When the safety brake block moves to the maximum displacement position, the normally closed contact unlocks and triggers a second signal.

[0008] Furthermore, the rehabilitation controller is equipped with an intelligent rehabilitation system, which includes an intelligent rehabilitation processing unit. The input end of the intelligent rehabilitation processing unit is connected to an exercise angle feedback unit, an interactive feedback unit, and a safety braking unit. The output end of the intelligent rehabilitation processing unit is connected to an exercise state control unit, a rehabilitation assistance unit, and a voice reminder unit. The input of the exercise angle feedback unit is connected to the exercise rehabilitation group signal; the input of the interactive feedback unit is connected to the signal receiver installed on the rehabilitation controller; the outputs of the exercise state control unit and the rehabilitation assistance unit are both connected to the exercise rehabilitation group signal; the output of the voice reminder unit is connected to the voice player installed on the rehabilitation controller; the rehabilitation assistance unit is connected to the electromagnetic drive bar signal; and the safety braking unit is connected to the safety braking block signal. Furthermore, a detachable linkage group is provided between the rotating shaft and the rehabilitation column. The linkage group includes an anti-rotation groove opened at the upper end of the rotating shaft and an anti-rotation column set at the upper end of the rehabilitation column. The output signal of the exercise state control unit is connected to a driving component, which drives the anti-rotation column to extend into or retract from the anti-rotation groove to achieve linkage or separation between the rotating shaft and the rehabilitation column.

[0009] Furthermore, the driving component includes a body made of elastic material, a driving cavity is provided in the body, driving electromagnetic blocks are fixedly connected to the upper and lower inner walls of the driving cavity respectively, and an auxiliary spring is connected between the two driving electromagnetic blocks. The output of the exercise state control unit is connected to the drive electromagnetic block signal. By controlling the direction of the magnetic force between the two drive electromagnetic blocks, the body is driven to produce axial deformation, thereby driving the anti-rotation column to move.

[0010] Furthermore, the rehabilitation column is equipped with a feedback column. When the rehabilitation column rotates to a specific angle, the feedback column triggers the angle sensing group at the corresponding position, and the angle sensing group transmits the signal to the exercise angle feedback unit.

[0011] Furthermore, the angle sensing assembly includes a sensing element fixed to the inner wall of the sensing groove, and a sensing column is fixedly connected to the lower end of the sensing element. The sensing element is made of elastic material and has a sensing cavity inside. The upper and lower inner walls of the sensing cavity are equipped with contactable trigger posts. When the feedback column presses against the sensing column, it drives the trigger column to make contact and generate an angle feedback signal.

[0012] Furthermore, the normally closed contact is connected to a mating connector for merging with the safety brake block. The safety brake block has a mating groove that matches the mating connector. The side end of the mating connector has a pair of receiving grooves, and a magnetic locking pin is slidably connected within the receiving grooves. A pair of electromagnets are installed inside the mating connector, and a tension spring connects the electromagnets to the magnetic locking pins. A locking groove matching the magnetic locking pin is formed on the inner wall of the mating groove. A pressure switch that matches the position of the electromagnetic drive bar and is used to control the electromagnet switch is connected to the safety brake block. Furthermore, the electromagnetic drive bar includes an elastic arc sleeve fixedly installed on the inner wall of the safety arc groove. The lower end of the elastic arc sleeve is fixedly connected to the safety brake block through an elastic buffer block. Safety electromagnetic blocks are fixedly connected to both the upper and lower inner walls of the elastic arc sleeve, and an elastic spacer is fixedly connected between the two safety electromagnetic blocks.

[0013] Meanwhile, tension locking assemblies are installed inside the upper and lower arc clamps. The tension locking assemblies include tension steel cables that slide through the upper and lower arc clamps. A self-locking motor for adjusting the tension of the tension steel cable is fixedly installed at the lower end of the connecting plate. The output end of the intelligent rehabilitation processing unit is connected to a force control unit, and the output end of the force control unit is connected to the signal of the self-locking motor.

[0014] Meanwhile, the upper airbag strip is fixedly connected to the rear end of the upper arc card, and the lower airbag strip is fixedly connected to the rear end of the lower arc card; The output of the intelligent rehabilitation treatment unit is also connected to a wrapping control unit. The output of the wrapping control unit is connected to the wrapping electromagnetic block set in the upper and lower airbag strips to control the expansion and contraction of the upper and lower airbag strips respectively. The input end of the intelligent rehabilitation processing unit is also connected to the wrapping feedback unit, and the input end of the wrapping feedback unit is connected to the pressure probe signal set on the upper and lower airbag strips.

[0015] Compared with the prior art, the advantages of this invention are: The exercise and rehabilitation group in this program uses elastic buffer blocks for primary buffering, and then the support springs on the guide slide rods for secondary buffering, to achieve flexible braking. Compared with traditional forced braking, it effectively reduces braking impact and is less likely to cause injury to the patient. Flexible braking reduces discomfort during braking, making the rehabilitation training process more comfortable. Throughout the rehabilitation process, it reliably limits and buffers the maximum safe range of motion to prevent secondary injury caused by excessive exercise.

[0016] By combining an intelligent rehabilitation system, upper arc cards, lower arc cards, and exercise rehabilitation sets, intelligent and highly personalized rehabilitation training support can be provided based on the post-recovery data of the elderly. In the initial stage of rehabilitation, intelligent exercise instructions can be generated precisely to guide and lead the elderly to complete lower limb rehabilitation exercises in an orderly manner, effectively avoiding the risk of secondary injury caused by improper movements and truly helping the recovery process of lower limb function. In the later stage of rehabilitation, the system will gradually guide the elderly to regain their ability and confidence in independent exercise, ensuring the stability and effectiveness of their subsequent independent walking. This not only realizes a scientific exercise mode, making the entire rehabilitation process more in line with the physical characteristics and needs of the elderly, but also significantly reduces the operating threshold of the rehabilitation device, effectively stimulating the enthusiasm and initiative of the elderly to participate in rehabilitation exercises.

[0017] The combination of the wrapping control unit and the wrapping electromagnetic block can efficiently drive the upper and lower airbag strip components to achieve adaptive wrapping function for the lower limbs of the elderly. Taking into full consideration the ease of operation for elderly users, it not only makes it easy to independently complete the wearing and removal actions, but also significantly reduces the difficulty of operation through the intelligent adjustment mechanism, effectively avoiding the risk of secondary damage to the fracture site caused by improper force, and comprehensively ensuring the safety of the rehabilitation training process. Attached Figure Description

[0018] Figure 1 This is an isometric view of the rehabilitation device of the present invention; Figure 2 This is the control logic diagram of the intelligent rehabilitation system of the present invention; Figure 3 This is an exploded view of the rehabilitation device of the present invention; Figure 4This is a left-side cross-sectional view of the rotating shaft and rehabilitation column of the present invention when they are linked. Figure 5 This is a left-side cross-sectional view of the rotating shaft and rehabilitation column of the present invention when they are detached; Figure 6 An isometric view of the tensioning locking assembly of the present invention applied to the upper and lower arc clamps; Figure 7 This is an isometric view of the angle-adjustable rehabilitation device of the present invention; Figure 8 This is an isometric drawing of the upper and lower arc clips of the present invention in a vertical position. Figure 9 This is an isometric view of the upper and lower arc clamps of the present invention in a bending motion state; Figure 10 This is a magnified view of a portion of the exercise and rehabilitation group of the present invention when the first signal is triggered; Figure 11 This is a magnified view of a portion of the exercise and rehabilitation group of the present invention when the second signal is triggered; Figure 12 This is a cross-sectional view of the safety braking block of the present invention.

[0019] Explanation of the labels in the diagram: 1. Rehabilitation frame, 11. Rehabilitation controller, 2. Arc-shaped locking block, 21. Connecting plate, 3. Upper arc lock, 31. Upper airbag strip, 32. Upper feedback skirt, 4. Lower arc lock, 41. Lower airbag strip, 42. Lower feedback skirt, 5. Tensioning locking group, 51. Tensioning cable, 52. Self-locking motor, 6. Exercise rehabilitation group, 61. Rehabilitation motor, 611. Rotating shaft, 612. Anti-rotation groove, 62. Angle collar, 621. Angle sensing groove, 622. Safety arc groove, 63. Upper adjustment plate, 64. Lower adjustment plate, 65. Rehabilitation column, 66. Limiting strip, 7. Anti-rotation column, 71. Driving component, 72. Feedback column, 8. Sensing column, 81. Sensing component, 9. Electromagnetic drive strip, 91. Safety brake block, 92. Normally open contact block, 93. Normally closed contact block, 931. Connector, 932. Electromagnet, 933. Magnetic locking pin, 94. Guide slide rod. Detailed Implementation

[0020] The technical solution will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0021] First implementation method: Please see Figure 1 - Figure 5 and Figure 7 - Figure 9A rehabilitation device suitable for lower limb fracture rehabilitation exercise in the elderly includes a rehabilitation frame 1. A rehabilitation controller 11 is installed on the front of the upper end of the rehabilitation frame 1. An arc-shaped card block 2 is connected to the rear end of the rehabilitation controller 11. A pair of connecting plates 21 are fixedly connected to the lower end of the arc-shaped card block 2. Multiple upper arc cards 3 are connected to the lower end of the connecting plates 21. Exercise rehabilitation groups 6 are installed on both the left and right ends of the upper arc cards 3. Multiple lower arc cards 4 are connected to the lower end of the exercise rehabilitation groups 6. The upper arc cards 3 and the lower arc cards 4 together constitute a support and movement guidance structure for the lower limb. The rehabilitation controller 11 is equipped with an intelligent rehabilitation system, which includes an intelligent rehabilitation processing unit. The input end of the intelligent rehabilitation processing unit is connected to an exercise angle feedback unit, an interactive feedback unit, and a safety braking unit. The output end of the intelligent rehabilitation processing unit is connected to an exercise state control unit, a rehabilitation assistance unit, and a voice reminder unit. The input of the exercise angle feedback unit is connected to the signal of the exercise rehabilitation group 6, the input of the interactive feedback unit is connected to the signal receiver set on the rehabilitation controller 11, the outputs of the exercise state control unit and the rehabilitation assistance unit are both connected to the signal of the exercise rehabilitation group 6, and the output of the voice reminder unit is connected to the signal of the voice player set on the rehabilitation controller 11. Through the cooperation of the intelligent rehabilitation system, the upper arc card 3, the lower arc card 4 and the exercise rehabilitation group 6, intelligent and highly personalized rehabilitation training support can be provided based on the post-recovery data of the elderly. In the initial stage of rehabilitation, intelligent exercise instructions can be accurately generated to guide and drive the elderly to complete lower limb rehabilitation exercises in an orderly manner, effectively avoiding the risk of secondary injury caused by non-standard movements, and effectively helping the recovery process of lower limb function. In the later stage of rehabilitation, the elderly will be gradually guided to regain the ability and confidence of independent exercise, ensuring the stability and effectiveness of their subsequent independent walking. In this way, not only is a scientific exercise mode realized, making the entire rehabilitation process more in line with the physical characteristics and needs of the elderly, but the operation threshold of the rehabilitation device is also significantly reduced, which effectively stimulates the enthusiasm and initiative of the elderly to participate in rehabilitation exercises.

[0022] Please see Figure 1 - Figure 5 The exercise and rehabilitation group 6 includes an upper adjustment plate 63 that is slidably connected to the left and right ends of the upper arc card 3, and a lower adjustment plate 64 that is slidably connected to the left and right ends of the lower arc card 4, corresponding to the upper adjustment plate 63. A rehabilitation column 65 is fixedly connected to the upper end of the lower adjustment plate 64, and a dividing angle collar 62 is rotatably fitted to the upper end of the rehabilitation column 65, and the upper end of the dividing angle collar 62 is fixedly connected to the upper adjustment plate 63. An installation block is fixedly connected to the end of the angle-splitting collar 62 away from the upper arc clip 3. A rehabilitation motor 61 is fixedly installed on the end of the installation block away from the upper arc clip 3. A rotating shaft 611 is fixedly connected to the end of the rehabilitation motor 61 near the upper arc clip 3. The rotating shaft 611 passes through the installation block and is connected to the rehabilitation column 65. The output end of the rehabilitation auxiliary unit is connected to the rehabilitation motor 61. Through the cooperation of the rehabilitation auxiliary unit and the rehabilitation motor 61, the elderly can be systematically guided and assisted to carry out lower limb rehabilitation exercises. This not only significantly improves the safety of the exercise movements and effectively avoids the risk of secondary injury caused by improper operation, but also fully guarantees the actual effectiveness of rehabilitation training. In the early stage of rehabilitation, it can accurately ensure that the fractured lower limb receives appropriate and adequate exercise, thereby effectively promoting the rehabilitation process and optimizing the treatment effect.

[0023] It should be noted that the upper adjustment plate 63 and the lower adjustment plate 64 are each provided with a dovetail groove or a T-shaped slot near the corresponding upper arc card 3 and lower arc card 4, respectively. Furthermore, dovetail sliders and T-shaped blocks extending into the dovetail grooves or T-shaped slots are installed on the corresponding upper arc card 3 and lower arc card 4. This achieves sliding cooperation between the upper adjustment plate 63 and the upper arc card 3, and between the lower adjustment plate 64 and the lower arc card 4. This not only achieves sliding cooperation between the upper adjustment plate and the upper arc card, and between the lower adjustment plate and the lower arc card, but also ensures the positional stability of the upper and lower arc cards during movement, thereby ensuring the effective execution of rehabilitation training movements. In addition, it makes the cooperation gap between the upper arc card 3 and the lower arc card 4 adjustable, which can effectively reduce the bending force of the lower limbs of the elderly in the early stages of rehabilitation, ensuring training safety. In the subsequent rehabilitation stages, the size of the gap can be adjusted to achieve precise control of the rehabilitation intensity.

[0024] Please see Figure 1 - Figure 5 A detachable linkage group is provided between the rotating shaft 611 and the rehabilitation column 65. The linkage group includes an anti-rotation groove 612 opened at the upper end of the rotating shaft 611 and an anti-rotation column 7 set at the upper end of the rehabilitation column 65. The output signal of the exercise state control unit is connected to a drive component 71. The drive component 71 drives the anti-rotation column 7 to extend into or retract from the anti-rotation groove 612 to achieve linkage or separation between the rotating shaft 611 and the rehabilitation column 65. A state conversion hole is opened at the upper end of the rehabilitation column 65. An isolation block is fixedly connected to the upper end of the state conversion hole. The drive component 71 is fixedly connected to the lower end of the isolation block. The anti-rotation column 7 is fixedly connected to the lower end of the drive component 71. Both the anti-rotation column 7 and the drive component 71 are in sliding fit with the state conversion hole. The anti-rotation column 7 cooperates with the anti-rotation groove 612. The output of the exercise state control unit is connected to the drive component 71. Through the cooperation of the anti-rotation column 7 and the anti-rotation groove 612, the linkage mode between the rehabilitation column 65 and the rehabilitation motor 61 can be flexibly switched, significantly expanding the application boundary of the rehabilitation device. It can efficiently carry out assisted training in the early stage of rehabilitation and accurately implement autonomous guided training in the later stage of rehabilitation, helping the elderly gradually regain their motor ability, rebuild their confidence in rehabilitation, form a scientific and progressive training system, effectively simplify the rehabilitation process and reduce psychological burden.

[0025] Please see Figure 1 - Figure 5 The driving component 71 includes a body made of elastic material. The driving component 71 can be made of rubber, silicone and silicone rubber composite material. A driving cavity is opened in the body. A driving electromagnetic block is fixedly connected to the upper and lower inner walls of the driving cavity respectively. An auxiliary spring is connected between the two driving electromagnetic blocks. The output of the exercise state control unit is connected to the drive electromagnetic block. By controlling the direction of the magnetic force between the two drive electromagnetic blocks, the body is driven to undergo axial deformation, thereby driving the anti-rotation column 7 to move. The exercise state control unit and the drive electromagnetic block enable precise motion control. When the rehabilitation column 65 and the rotating shaft 611 need to rotate in tandem, the corresponding drive electromagnetic blocks can be controlled to generate a mutually repulsive electromagnetic force. Under this action, the drive component 71 undergoes elongation deformation, pushing the anti-rotation column 7 to extend into the anti-rotation groove 612 and maintaining a stable electromagnetic force to ensure precise execution of the accompanying rotation. This ensures that the rehabilitation device effectively helps the elderly complete lower limb motor rehabilitation training. When the rehabilitation column 65 and the rotating shaft 611 need to rotate independently, the device switches to control the corresponding drive electromagnetic blocks to generate a magnetic force that attracts each other. This drives the drive component 71 to return to its original telescopic shape, and the anti-rotation column 7 moves out of the anti-rotation groove 612, releasing the mechanical lock on the rehabilitation column 65 and the rotating shaft 611. This intelligent electromagnetic switching control not only ensures the reliability of the initial assistance stage, but also fully releases the space for the elderly to exercise independently in the subsequent stages, achieving a seamless connection of progressive rehabilitation training.

[0026] It should be noted that in the initial stage of rehabilitation, since the lower limbs of the elderly are still in the recovery period, they need to use the assisted mode for exercise. At this time, the rotating shaft 611 and the rehabilitation column 65 are in a linked state. The intelligent rehabilitation processing unit, through the exercise state control unit, sends currents in opposite directions to the two driving electromagnetic blocks in the driving component 71, so that they generate mutually repulsive magnetic forces. This magnetic force overcomes the elastic force of the auxiliary spring, causing the driving component 71 to extend longitudinally, pushing the anti-rotation column 7 at its lower end to extend downward and insert into the anti-rotation groove 612 of the rotating shaft 611. At this time, the rotating shaft 611 and the rehabilitation column 65 are mechanically locked, and the rotation of the rehabilitation motor 61 can directly and without slippage drive the rehabilitation column 65 and the lower limb movement. In the later stages of rehabilitation, when the elderly person's lower limbs regain some muscle strength and need to switch to active training, the intelligent rehabilitation processing unit changes the direction of the current through the exercise state control unit, causing the two driving electromagnetic blocks to generate a magnetic force that attracts each other. Under the combined action of the magnetic force and the restoring force of the auxiliary spring, the driving component 71 contracts, pulling the anti-rotation column 7 out of the anti-rotation groove 612. At this time, the rotating shaft 611 is decoupled from the rehabilitation column 65, and the active movement of the elderly person's lower limbs is directly driven by the rehabilitation column 65 to drive the adjustment plate 64 and other components, realizing autonomous flexion and extension without motor drive.

[0027] Please see Figure 1 - Figure 5 The lower end of the angle-dividing collar 62 is provided with an angle-dividing sensing groove 621 corresponding to the position of the isolation block. Multiple sensing grooves are provided on the rear side of the inner wall of the angle-dividing sensing groove 621. The multiple sensing grooves are set at intervals of 5° to 15°. An angle sensing group is provided in each sensing groove. A feedback column 72 is installed on the rehabilitation column 65 and is fixedly connected to the upper end of the isolation block. When the rehabilitation column 65 rotates to a specific angle, the feedback column 72 triggers the angle sensing group at the corresponding position. The angle sensing group transmits the signal to the exercise angle feedback unit. The cooperation between the sensing column 8 and the feedback column 72 can efficiently realize real-time monitoring and accurate feedback of the rehabilitation exercise angle, providing double protection for exercise safety. It not only ensures the effectiveness of lower limb training for the elderly, but also accurately prevents the risk of secondary injury caused by excessive exercise, significantly improving rehabilitation efficiency. In the subsequent exercise state control process, by continuously tracking and feeding back the spatial positional relationship between the rehabilitation column 65 and the rotating shaft 611, a closed-loop control loop is formed, effectively verifying the execution accuracy of the control command, thereby realizing the precise positioning and dynamic optimization of the equipment coordination relationship.

[0028] Please see Figure 1 - Figure 5 The angle sensing group includes a sensing element 81 fixed on the inner wall of the sensing groove, and a sensing column 8 is fixedly connected to the lower end of the sensing element 81. The sensing element 81 is made of elastic material and has a sensing cavity inside. The upper and lower inner walls of the sensing cavity are provided with contactable trigger posts. An isolation spring that is slidably sleeved on the outer end of the trigger post is fixedly connected between the upper and lower inner walls of the sensing cavity. When the feedback column 72 presses the sensing column 8, it drives the trigger column to make contact and generate an angle feedback signal, thus exercising the coordination between the angle feedback and the trigger column. When the feedback column 72 moves to the corresponding position of the sensing column 8, the sensing column 8 is pressed and displaced upwards, thereby driving the sensing element 81 and the isolation spring to produce elastic contraction deformation, activating the contact response mechanism of the trigger column. This allows for real-time acquisition and feedback of rehabilitation angle parameters, ensuring that the movement trajectory is always within a safe and effective range. This not only prevents insufficient exercise from affecting the therapeutic effect but also avoids damage caused by overtraining, thereby comprehensively improving the efficiency and quality of rehabilitation treatment for the elderly. It also provides accurate data for subsequent control and compensation, improving the control precision of rehabilitation exercises and ensuring the effectiveness of rehabilitation exercises.

[0029] Please see Figure 1 and Figure 2 The input end of the intelligent rehabilitation processing unit is also connected to a rehabilitation plan setting unit. The input end of the rehabilitation plan setting unit is connected to the touch screen signal on the rehabilitation controller 11. The output end of the intelligent rehabilitation processing unit is also connected to a rehabilitation data transmission unit. The output end of the rehabilitation data transmission unit is connected to the touch screen signal on the rehabilitation controller 11. The settings of the rehabilitation plan setting and the rehabilitation data transmission unit can tailor a personalized training plan according to the real-time physical condition of the elderly, ensuring the accuracy and effectiveness of rehabilitation exercises. At the same time, it continuously outputs quantitative data feedback in the subsequent self-training stage, providing a visual monitoring interface for family members, and realizing the full observation and scientific management of the rehabilitation process.

[0030] Please see Figure 1 - Figure 5 and Figure 7 - Figure 9 After the elderly person recovers and is discharged from the hospital, their family members input relevant basic data about the elderly person into the rehabilitation plan setting unit through a touch screen. This data includes, but is not limited to, height, weight, age, and type of lower limb fracture. The rehabilitation plan setting unit selects a rehabilitation plan suitable for the elderly person based on this data and transmits the data to the intelligent rehabilitation processing unit. The intelligent rehabilitation processing unit identifies and processes the rehabilitation plan to facilitate the subsequent control of rehabilitation exercises.

[0031] In the initial stage of rehabilitation, the intelligent rehabilitation processing unit controls the driving electromagnetic block through the exercise state control unit, so that the corresponding driving electromagnetic blocks generate a repulsive electromagnetic force, causing the driving component 71 to extend and drive the anti-rotation column 7 to be constantly inserted into the anti-rotation groove 612, forming a continuous linkage rotation effect between the rehabilitation column 65 and the rotating shaft 611. Within a set time period, the intelligent rehabilitation processing unit controls the voice player to play reminder voice through the voice reminder unit to remind the elderly to start rehabilitation exercises. After receiving the reminder signal, the elderly stand up and stand behind the rehabilitation support 1, hold the handle on the rehabilitation support 1, and put the lower limb that needs to be rehabilitated into the upper arc card 3 and the lower arc card 4. The upper arc card 3 clamps the thigh part, and the lower arc card 4 clamps the calf part, so as to facilitate the subsequent bending exercise of the lower limb. After the elderly person has finished wearing the device, they give a voice command to start the exercise. The signal receiver transmits the received feedback data to the interactive feedback unit, which then transmits the data to the intelligent rehabilitation processing unit. Upon receiving the signal indicating that the device is fully worn, the intelligent rehabilitation processing unit sends a voice command to the elderly person to start the rehabilitation exercise via the voice reminder unit and voice player. Then, the rehabilitation auxiliary unit controls the rehabilitation motor 61 to rotate the rehabilitation column 65 according to the set rehabilitation plan via the rotating shaft 611. This causes the rehabilitation column 65 to rotate at a corresponding angle via the lowering plate 64, thereby enabling the elderly person's lower limbs to perform rehabilitation exercises. This ensures that the elderly person can perform safe and effective rehabilitation exercises in the initial stage of rehabilitation. During the rehabilitation exercise, the feedback column 72 on the rehabilitation column 65 rotates, which in turn causes contact and compression on the corresponding sensing column 8. This causes the sensing column 8 to act on the sensing element 81. After the sensing element 81 contracts, the trigger column inside it contacts under pressure, thereby triggering the exercise angle feedback unit. The exercise angle feedback unit transmits the trigger signal to the intelligent rehabilitation processing unit. Based on the trigger signal transmitted by the exercise angle feedback unit, the intelligent rehabilitation processing unit determines the angle data of the rehabilitation auxiliary unit driving the elderly person's lower limbs to perform rehabilitation exercises. If the angle data does not meet the requirements of the rehabilitation plan, a compensation control command is transmitted to the rehabilitation auxiliary unit, enabling the rehabilitation auxiliary unit to effectively ensure the effectiveness of the rehabilitation plan execution and the exercise effect through the rehabilitation motor 61.

[0032] In the later stages of rehabilitation, the intelligent rehabilitation processing unit controls the driving electromagnetic blocks through the exercise state control unit, causing the corresponding driving electromagnetic blocks to generate an attractive electromagnetic force. This causes the driving component 71 to contract, moving the anti-rotation column 7 away from the anti-rotation groove 612, resulting in a continuous independent rotation effect between the rehabilitation column 65 and the rotating shaft 611. This releases the mechanical lock between the rehabilitation column 65 and the rotating shaft 611. Subsequently, after receiving voice feedback from the interactive feedback unit indicating that the wear is complete, the intelligent rehabilitation processing unit controls the voice player through the voice reminder unit to remind the elderly person to move their lower limbs. This causes the lower arc card 4 to drive the rehabilitation column 65 to rotate synchronously through the lower adjustment plate 64. Then, under the triggering action of the feedback column 72 on the sensing column 8, the exercise angle feedback unit continuously transmits trigger signals to the intelligent rehabilitation processing unit. Based on the angle data, the intelligent rehabilitation processing unit provides feedback to the elderly person through the voice reminder unit and the voice player to indicate whether the swing angle is in place. The elderly person continues to perform rehabilitation exercises according to the voice prompts, thereby ensuring the effectiveness of the exercise and promoting lower limb rehabilitation.

[0033] Meanwhile, during the rehabilitation process, the intelligent rehabilitation processing unit will also transmit rehabilitation exercise data to the touch screen through the rehabilitation data transmission unit, making it convenient for the elderly's family members to view the data of the rehabilitation plan execution, thus providing an effective reminder and display effect.

[0034] Second implementation method: Please see Figure 10 and Figure 11 This embodiment is an improvement on the first embodiment. As an optional functional application, it is a rehabilitation device suitable for the rehabilitation of elderly people after lower limb fractures. A safety arc groove 622 is provided on the front side of the inner wall of the angle sensing groove 621. The safety braking unit includes a safety braking block 91 that can be slidably arranged along the safety arc groove 622. A limiting strip 66 that cooperates with the safety braking block 91 is fixedly connected to the outer end of the rehabilitation column 65. The limiting strip 66 is located on the lower side of the safety braking block 91. The output of the rehabilitation assistive unit is also signal-connected to an electromagnetic drive bar 9 for adjusting the position of the safety brake block 91, so as to position the safety brake block 91 to a preset maximum safe angle position; please refer to Figure 10 and Figure 11 The electromagnetic drive bar 9 includes an elastic arc sleeve fixedly installed on the inner wall of the safety arc groove 622. The lower end of the elastic arc sleeve is fixedly connected to the safety brake block 91 through an elastic buffer block. Safety electromagnetic blocks are fixedly connected to both the upper and lower inner walls of the elastic arc sleeve. An elastic spacer is fixedly connected between the two safety electromagnetic blocks. The output end of the rehabilitation auxiliary unit is also connected to the safety electromagnetic block signal. The safety brake block 91 is equipped with a trigger switch. When the limit bar 66 rotates to the position of contacting and exceeding the safety brake block 91, the trigger switch is turned on to generate a first signal or a second signal. The trigger switch transmits the signal to the safety brake unit.

[0035] The trigger switch includes a normally open contact 92 and a normally closed contact 93, which are connected by a guide slide 94 and elastically mounted on the safety brake block 91. When the normally open contact 92 contacts the limit bar 66, it triggers a first signal. When the normally closed contact 93 moves to the maximum displacement position of the safety brake block 91, it unlocks and triggers a second signal. A pair of guide rods 94 are slidably arranged inside the safety brake block 91. The upper ends of the two guide rods 94 extend to the outside of the safety brake block 91 and are fixedly connected to normally closed contacts 93. The lower ends of the two guide rods 94 extend to the outside of the safety brake block 91 and are fixedly connected to normally open contacts 92. A pair of support springs that are slidably sleeved on the outer ends of the guide rods 94 are fixedly connected between the lower end of the safety brake block 91 and the normally open contacts 92. The input end of the safety brake unit is respectively connected to the normally open contacts 92 and the normally closed contacts 93. Please see Figure 12 The normally closed contact 93 is connected to a mating joint 931 for docking with the safety brake block 91. The safety brake block 91 has a mating groove that matches the mating joint 931. The side end of the mating joint 931 has a pair of receiving grooves, and a magnetic locking pin 933 is slidably connected in the receiving groove. The magnetic locking pin 933 is made of permanent magnet material. A pair of electromagnets 932 are installed in the mating joint 931, and a tension spring is connected between the electromagnets 932 and the magnetic locking pin 933. A locking groove matching the magnetic locking pin 933 is opened on the inner wall of the mating groove. When the normally closed contact 93 and the safety brake block 91 are in a docking state, the electromagnets are opened and repel the magnetic locking pin 933, so that the magnetic locking pin 933 is inserted into the locking groove, and the mating joint 931 is locked, and the normally closed contact 93 remains in a normally closed state. A pressure switch is connected to the safety brake block 91, which matches the position of the electromagnetic drive bar 9 and is used to control the switch of the electromagnet 932. When the safety brake block 91 reaches the maximum displacement (i.e., the elastic buffer block is fully compressed), the pressure switch detects the pressure threshold and is triggered, thereby closing the electromagnet. The magnetic locking pin 933 is retracted into the receiving groove during the return of the tension spring, thereby unlocking the connector 931. At this time, the normally open contact block 92 moves further, which separates the normally closed contact block 93 from the safety brake block 91. During this process, the elastic buffer block provides the first-level buffering, and the support spring on the guide slide 94 provides the second-level buffering, thus achieving flexible braking. Compared to traditional forced braking, the flexible braking method of this solution effectively reduces braking impact force and is less likely to cause injury to the patient, thus improving the safety and comfort of rehabilitation training.

[0036] When the limit bar 66 rotates to the maximum safe angle, it first contacts the normally open contact 92 and triggers the first signal, indicating that the maximum safe angle has been reached. When the limit bar 66 continues to rotate and presses the normally open contact 92, the elastic buffer block provides the first-level buffer. The limit bar 66 continues to rotate until the normally closed contact 93 is unlocked, triggering the second signal, indicating that the maximum safe angle has exceeded the limit. At this time, the support spring on the guide slide bar 94 provides the second-level buffer. By setting up the electromagnetic drive bar 9, safety brake block 91, limit bar 66 and safety brake unit, the maximum safe range of motion can be reliably limited and buffered throughout the rehabilitation process. On the one hand, it can avoid excessive movement caused by intelligent control errors in the early stage of rehabilitation, and on the other hand, it can ensure the safety and comfort of elderly patients during self-training in the later stage of rehabilitation. While ensuring the effect of rehabilitation training, it can effectively prevent secondary injuries caused by excessive exercise, thereby effectively improving the safety and effectiveness of the overall rehabilitation training.

[0037] The safety arc groove 622 has guide arc grooves on both its left and right inner walls. The safety brake block 91 has guide posts fixedly connected to the lower sides of both ends. The end of the guide post away from the safety brake block 91 extends into the guide arc groove and slides with the guide arc groove. Through the cooperation of the rehabilitation auxiliary unit and the safety electromagnetic block, the synchronous control of the position of the safety brake block 91 can be effectively realized. It can flexibly adapt to different rehabilitation exercise goals and ensure reliable angle limit in each training stage, thereby playing a continuous and effective safety protection role.

[0038] Please see Figure 10 and Figure 11 Preset safety angle: Before each training session begins, the intelligent rehabilitation processing unit sends rehabilitation instruction data to the rehabilitation assistance unit. Based on the maximum bending angle set for this stage, the rehabilitation assistance unit sends control commands to the safety electromagnetic blocks, causing an attractive electromagnetic force to be generated between the two safety electromagnetic blocks. This electromagnetic force can resist the elasticity of the elastic spacer, causing the elastic arc sleeve to contract and deform, thereby driving the safety brake block 91 to slide backward along the safety arc groove 622. Under the coordinated limiting and guiding of the guide column and the guide arc groove, the sliding position of the safety brake block 91 is precisely controlled. Finally, the electromagnetic drive bar 9 contracts as a whole, so that the safety brake block 91 is accurately positioned at the maximum bending angle set for this training session (e.g., knee flexion of 30°). Normal movement and positioning prompts: During rehabilitation exercises for the elderly, when the rehabilitation column 65 rotates to its maximum bending angle, the limit bar 66 on it will contact the normally open contact block 92 and trigger the first signal, indicating that the maximum safe angle has been reached. The safety braking unit receives this signal and uploads it to the intelligent rehabilitation processing unit. Based on this, the intelligent rehabilitation processing unit determines that the bending action has been completed. In the rehabilitation assistance stage, the intelligent rehabilitation processing unit brakes the rehabilitation motor 61 through the rehabilitation assistance unit to ensure the accuracy of the action. In the independent exercise stage, the intelligent rehabilitation processing unit plays a prompt tone through the voice reminder unit to inform the user that the action has reached the standard. Overload protection and emergency braking: During rehabilitation exercises for the elderly, if the system misjudges, controls malfunction, or the elderly exert excessive force during voluntary movement, causing the bending angle to exceed the safety limit, the limit bar 66 continues to rotate with the rehabilitation column 65 after triggering the normally open contact 92. This compresses the support spring, pushes the guide slide 94 to slide within the safety brake block 91, disengaging the normally closed contact 93 and triggering a second signal indicating that the maximum safe angle has exceeded the limit. The safety braking unit uploads this angle over-limit signal to the intelligent rehabilitation processing unit. At this time, this signal has the highest priority. In the initial stage of rehabilitation, the intelligent rehabilitation processing unit immediately brakes the rehabilitation motor 61, forcibly stopping the movement, and dynamically compensates for control errors in subsequent instructions, thereby avoiding secondary injury caused by overtraining while ensuring the safety and accuracy of the subsequent training process. During the self-training phase in the later stages of rehabilitation, the intelligent rehabilitation processing unit simultaneously issues a warning through the voice reminder unit, prompting the user to stop bending to prevent possible mechanical intervention injuries, further ensuring the safety and effectiveness of the rehabilitation process. At the same time, the limit bar 66 is physically blocked by the safety brake block 91, forming a mechanical limit to prevent further bending.

[0039] The third implementation method: Please see Figure 6 This embodiment is an improvement on the first embodiment. As an optional functional application, it is a rehabilitation device suitable for the rehabilitation exercise of the elderly after lower limb fracture. The upper arc card 3 and the lower arc card 4 are provided with a tension locking group 5. The tension locking group 5 includes a tension steel cable 51 that slides into the upper arc card 3 and the lower arc card 4. The first end of the tension steel cable 51 is fixed to the uppermost upper arc card 3, and the tail end slides through each upper arc card 3 and the lower arc card 4 in sequence, and then passes back from the lowermost lower arc card 4 and extends to the uppermost upper arc card 3, thereby forming a U-shaped loop. To improve safety, the tension steel cable 51 is covered with an elastic protective sleeve. A self-locking motor 52 for adjusting the tension of the tension cable 51 is fixedly installed at the lower end of the connecting plate 21. A winding wheel is fixedly connected to the output shaft of the self-locking motor 52. A traction cavity is opened on the connecting plate 21, and the winding wheel is set in the traction cavity. The output shaft rotates with the traction cavity, and the tension cable 51 slides with the traction cavity. A guide hole is opened at the end of the traction cavity near the upper arc card 3, which slides with the tension cable 51. The tail end of the tension cable 51 passes through the guide hole and enters the traction cavity, and is fixedly wound on the winding wheel. The output end of the intelligent rehabilitation processing unit is connected to a force control unit. The output end of the force control unit is connected to the signal of the self-locking motor 52. The cooperation between the force control unit and the self-locking motor 52 can accurately adjust the tension force acting between the upper arc card 3 and the lower arc card 4 of the component, so that the rehabilitation device can achieve progressive load loading during the elderly's self-training process, scientifically guide them to gradually restore their walking ability, and significantly improve the functionality and rehabilitation effect of the equipment.

[0040] Please see Figure 6 In the initial stage of rehabilitation, the intelligent rehabilitation processing unit controls the self-locking motor 52 through the force control unit, causing it to rotate in the opposite direction. This causes the winding wheel to completely release the tension cable 51, relieving the binding force between the upper arc clamp 3 and the lower arc clamp 4. This ensures minimal movement resistance in the initial stage, allowing for rehabilitation exercises of the elderly's lower limb rotation angle while avoiding damage to the fracture site due to excessive force.

[0041] In the later stages of rehabilitation, the intelligent rehabilitation processing unit, according to the rehabilitation plan, controls the self-locking motor 52 through the force control unit to make it rotate in the positive direction. This causes the winding wheel to continuously tighten the tension cable 51, increasing the binding force between the upper arc clamp 3 and the lower arc clamp 4. This increases the resistance to the rotation of the lower arc clamp 4, effectively promoting the rehabilitation exercise effect of the elderly, forming a progressive weight-bearing load, scientifically guiding the elderly to gradually restore their walking ability, effectively simulating resistance training, and enhancing the lower limb muscle strength of the elderly. After the resistance of the force control unit increases to the force data that matches the elderly's weight, the current tension is maintained. After a period of time, the rehabilitation training for the elderly after lower limb fracture is completed. The intelligent rehabilitation processing unit transmits the data of the completed rehabilitation training to the rehabilitation data transmission unit and displays reminders on the touch screen.

[0042] Fourth implementation method: Please see Figure 1 - Figure 3 and Figure 7 - Figure 9This embodiment is an improvement on the first embodiment, and is an optional functional application suitable for rehabilitation devices for elderly people recovering from lower limb fractures. An upper airbag strip 31 is fixedly connected to the rear end of the upper arc clip 3, and a lower airbag strip 41 is fixedly connected to the rear end of the lower arc clip 4. Both the upper airbag strip 31 and the lower airbag strip 41 are made of elastic material, such as rubber, silicone, or a composite material of silicone rubber. Each of the upper airbag strip 31 and the lower airbag strip 41 has a wrapping cavity. A compression spring is fixedly connected between the front and rear inner walls of the wrapping cavity, which can maintain the contraction of the upper airbag strip 31 and the lower airbag strip 41 when not worn. Encapsulating electromagnetic blocks are fixedly connected to the front and rear inner walls of the wrapping cavity, and the wrapping cavity is filled with cushioning air. The cushioning gas can be air to ensure comfort during wrapping. The output of the intelligent rehabilitation processing unit is also connected to the wrapping control unit, which is connected to the wrapping electromagnetic block. It can control the expansion and contraction of the upper airbag strip 31 and the lower airbag strip 41 respectively. The cooperation between the wrapping control unit and the wrapping electromagnetic block can efficiently drive the upper airbag strip 31 and the lower airbag strip 41 to achieve adaptive wrapping function for the lower limbs of the elderly. It fully considers the ease of operation for elderly users, making it easy to independently complete the wearing and removal actions. Moreover, the intelligent adjustment mechanism significantly reduces the difficulty of operation and effectively avoids the risk of secondary injury to the fracture site caused by improper force, thus ensuring the safety of the rehabilitation training process in all aspects.

[0043] It should be noted that the wrapping control unit can independently control the wrapping electromagnetic blocks in the upper airbag strip 31 and the lower airbag strip 41, and can also synchronously control the wrapping electromagnetic blocks in the upper airbag strip 31 and the lower airbag strip 41, thereby ensuring the accuracy of wear control.

[0044] Please see Figure 1 - Figure 3 and Figure 7 - Figure 9 The upper airbag strip 31 is fixedly connected to the rear end of the upper feedback skirt 32, and the lower airbag strip 41 is fixedly connected to the rear end of the lower feedback skirt 42. The input end of the intelligent rehabilitation processing unit is also connected to the wrapping feedback unit. The input end of the wrapping feedback unit is connected to the pressure probe signals set in the upper feedback skirt 32 and the lower feedback skirt 42 respectively. The wrapping feedback unit, pressure probe, upper feedback skirt 32 and lower feedback skirt 42 work together to build a multi-dimensional safety protection system. It not only improves wearing comfort through flexible cushioning design, but also effectively enhances movement stability by relying on intelligent friction management, eliminating the risk of slippage. The wrapping feedback unit can realize dynamic data tracking and real-time feedback. When a potential slippage risk is detected, it can actively trigger an adaptive pressure boosting mechanism to ensure that the best wrapping effect is always maintained, achieving dual protection of safety and effectiveness.

[0045] Please see Figure 1 - Figure 3 and Figure 7 - Figure 9 Wearing and clamping: After the elderly person puts their lower limbs into the upper arc clip 3 and lower arc clip 4, a wearing and clamping instruction signal is transmitted to the signal receiver and interactive feedback unit via voice command. The interactive feedback unit transmits the instruction signal to the intelligent rehabilitation processing unit. The intelligent rehabilitation processing unit controls the voice player to play the signal to start wearing and clamping through the voice reminder unit, and then controls the wrapping electromagnetic block through the wrapping control unit to generate a repulsive electromagnetic force. The repulsive electromagnetic force can cause the upper airbag strip 31 and lower airbag strip 41 to expand and deform. Through the upper feedback skirt 32 and lower feedback skirt 42, it continuously acts on the elderly person's lower limbs, and the upper feedback skirt... The pressure probes inside edge 32 and lower feedback skirt 42 synchronously feed back pressure data to the wrapping feedback unit. The wrapping feedback unit transmits the pressure data to the intelligent rehabilitation processing unit. When the pressure data received by the intelligent rehabilitation processing unit reaches the effective wearing pressure threshold, it transmits a control command to the wrapping control unit to maintain the current magnitude at this time, so as to maintain the inflation effect of the upper airbag strip 31 and lower airbag strip 41, and effectively clamp the lower limbs of the elderly to ensure that subsequent rehabilitation exercises can be carried out effectively. After the wearing and clamping is completed, the intelligent rehabilitation processing unit controls the voice player through the voice reminder unit to issue a reminder to start rehabilitation exercises.

[0046] Dynamic adjustment and anti-slip: During rehabilitation exercises, the pressure probes inside the upper feedback skirt 32 and lower feedback skirt 42 continuously transmit the pressure data they sense to the intelligent rehabilitation processing unit through the wrapping feedback unit. The intelligent rehabilitation processing unit judges the wearing clamping effect during the exercise based on the pressure data. When the pressure data gradually decreases and it is judged that there is a potential risk of slippage of the wearing clamp, the current input to the corresponding wrapping electromagnetic block is increased through the wrapping control unit to enhance the clamping effect on the lower limbs of the elderly and ensure the effective implementation of rehabilitation exercises.

[0047] Removal: After the rehabilitation exercise is completed, the intelligent rehabilitation processing unit controls the wrapping control unit to generate an attractive electromagnetic force between the corresponding wrapping electromagnetic blocks. The attractive electromagnetic force causes the upper airbag strip 31 and the lower airbag strip 41 to contract, releasing the clamping effect on the elderly person's lower limbs. At the same time, the intelligent rehabilitation processing unit controls the voice player through the voice reminder unit to transmit signals indicating the completion of the rehabilitation exercise and the removal of the garment, so that the elderly person can remove their lower limbs from the upper arc card 3 and the lower arc card 4 according to the voice prompts, thus completing this rehabilitation exercise.

[0048] The above are merely preferred embodiments of the present invention; they encompass all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly, comprising a rehabilitation frame (1), wherein a rehabilitation controller (11) is installed on the front side of the upper end of the rehabilitation frame (1), an arc-shaped locking block (2) is connected to the rear end of the rehabilitation controller (11), a pair of connecting plates (21) are fixedly connected to the lower end of the arc-shaped locking block (2), and a plurality of upper arc-shaped locking blocks (3) are connected to the lower end of the connecting plates (21), wherein exercise rehabilitation groups (6) are installed on both the left and right ends of the upper arc-shaped locking blocks (3), and a plurality of lower arc-shaped locking blocks (4) are connected to the lower end of the exercise rehabilitation groups (6), characterized in that: The exercise and rehabilitation group (6) includes an upper adjustment plate (63) that is slidably connected to the left and right ends of the upper arc card (3), and a lower adjustment plate (64) that is slidably connected to the left and right ends of the lower arc card (4) and corresponds to the upper adjustment plate (63). A rehabilitation column (65) is fixedly connected to the upper end of the lower adjustment plate (64), and a split-angle collar (62) that is fixedly connected to the upper adjustment plate (63) is rotatably fitted to the upper end of the rehabilitation column (65). An installation block is fixedly connected to the end of the angle-splitting collar (62) away from the upper arc clip (3). A rehabilitation motor (61) is fixedly installed on the end of the installation block away from the upper arc clip (3). The output shaft of the rehabilitation motor (61) is fixedly connected to a rotating shaft (611) that matches the rehabilitation column (65). An angle-splitting sensing groove (621) corresponding to the position of the isolation block is opened at the lower end of the angle-splitting collar (62). A safety arc groove (622) and multiple sensing grooves are respectively opened on the front and rear sides of the inner wall of the angle-splitting sensing groove (621). An angle sensing group is set in each of the sensing grooves. The safety brake block (91) is slidably disposed in the safety arc groove (622), and the outer end of the rehabilitation column (65) is fixedly connected with a limiting strip (66) that cooperates with the safety brake block (91). The safety arc groove (622) is provided with an electromagnetic drive bar (9) for adjusting the position of the safety brake block (91). The safety brake block (91) is provided with a trigger switch. The trigger switch includes a normally open contact (92) and a normally closed contact (93). When the normally open contact (92) contacts the limit bar (66), it triggers a first signal. The two are connected by a guide slide bar (94) and are elastically set on the safety brake block (91). When the safety brake block (91) moves to the maximum displacement, the normally closed contact (93) unlocks and triggers a second signal.

2. The rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly according to claim 1, characterized in that: The rehabilitation controller (11) is equipped with an intelligent rehabilitation system, which includes an intelligent rehabilitation processing unit. The input end of the intelligent rehabilitation processing unit is connected to an exercise angle feedback unit, an interactive feedback unit, and a safety braking unit. The output end of the intelligent rehabilitation processing unit is connected to an exercise state control unit, a rehabilitation assistance unit, and a voice reminder unit. The input end of the exercise angle feedback unit is connected to the exercise rehabilitation group (6) by signal, the input end of the interactive feedback unit is connected to the signal receiver set on the rehabilitation controller (11) by signal, the output ends of the exercise state control unit and the rehabilitation auxiliary unit are both connected to the exercise rehabilitation group (6) by signal, the output end of the voice reminder unit is connected to the voice player set on the rehabilitation controller (11) by signal, the rehabilitation auxiliary unit is connected to the electromagnetic drive bar (9) by signal, and the safety braking unit is connected to the safety braking block (91) by signal.

3. The rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly according to claim 2, characterized in that: A disengageable linkage group is provided between the rotating shaft (611) and the rehabilitation column (65). The linkage group includes an anti-rotation groove (612) opened at the upper end of the rotating shaft (611) and an anti-rotation column (7) provided at the upper end of the rehabilitation column (65). The output signal of the exercise state control unit is connected to a drive component (71). The drive component (71) drives the anti-rotation column (7) to extend into or out of the anti-rotation groove (612) so as to realize the linkage or separation of the rotating shaft (611) and the rehabilitation column (65).

4. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly, as described in claim 3, characterized in that: The driving component (71) includes a body made of elastic material, a driving cavity is provided in the body, and driving electromagnetic blocks are fixedly connected to the upper and lower inner walls of the driving cavity respectively, and an auxiliary spring is connected between the two driving electromagnetic blocks. The output of the exercise state control unit is connected to the drive electromagnetic block signal. By controlling the magnetic direction between the two drive electromagnetic blocks, the body is driven to produce axial deformation, thereby driving the anti-rotation column (7) to move.

5. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly, as described in claim 4, characterized in that: The rehabilitation column (65) is provided with a feedback column (72). When the rehabilitation column (65) rotates to a specific angle, the feedback column (72) triggers the angle sensing group at the corresponding position, and the angle sensing group transmits the signal to the exercise angle feedback unit.

6. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly, as described in claim 5, characterized in that: The angle sensing group includes a sensing element (81) fixed on the inner wall of the sensing groove, and a sensing column (8) is fixedly connected to the lower end of the sensing element (81). The sensing element (81) is made of elastic material and has a sensing cavity inside. The upper and lower inner walls of the sensing cavity are provided with contactable trigger posts. When the feedback post (72) presses against the sensing post (8), it drives the trigger post to make contact and generate an angle feedback signal.

7. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly according to claim 1, characterized in that: The normally closed contact block (93) is connected to a connector (931) for docking with the safety brake block (91). The safety brake block (91) has a docking groove that matches the connector (931). The side end of the connector (931) has a pair of receiving grooves, and a magnetic locking pin (933) is slidably connected in the receiving groove. A pair of electromagnets (932) are installed in the connector (931), and a tension spring is connected between the electromagnets (932) and the magnetic locking pins (933). The inner wall of the docking groove has a locking groove that matches the magnetic locking pins (933). The safety brake block (91) is connected to a pressure switch that matches the position of the electromagnetic drive bar (9) and is used to control the switching of the electromagnets (932).

8. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly according to claim 1, characterized in that: The electromagnetic drive bar (9) includes an elastic arc sleeve fixedly installed on the inner wall of the safety arc groove (622). The lower end of the elastic arc sleeve is fixedly connected to the safety brake block (91) through an elastic buffer block. Safety electromagnetic blocks are fixedly connected to both the upper and lower inner walls of the elastic arc sleeve, and an elastic spacer is fixedly connected between the two safety electromagnetic blocks.

9. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly according to claim 1, characterized in that: The upper arc clamp (3) and the lower arc clamp (4) are provided with a tension locking group (5). The tension locking group (5) includes a tensioning steel cable (51) that slides into the upper arc clamp (3) and the lower arc clamp (4). The lower end of the connecting plate (21) is fixedly installed with a self-locking motor (52) for winding and unwinding the tensioning steel cable (51) to adjust its tension. The output end of the intelligent rehabilitation processing unit is connected to a force control unit. The output end of the force control unit is connected to the self-locking motor (52) via a signal.

10. A rehabilitation device suitable for post-healing exercise of lower limb fractures in the elderly according to claim 1, characterized in that: The upper arc clip (3) is fixedly connected to the rear end of the upper airbag strip (31), and the lower arc clip (4) is fixedly connected to the rear end of the lower airbag strip (41). The output end of the intelligent rehabilitation processing unit is also connected to a wrapping control unit. The output end of the wrapping control unit is connected to the wrapping electromagnetic block set in the upper airbag strip (31) and the lower airbag strip (41) to control the expansion and contraction of the upper airbag strip (31) and the lower airbag strip (41) respectively. The input end of the intelligent rehabilitation processing unit is also connected to a package feedback unit, and the input end of the package feedback unit is connected to the pressure probe signal set on the upper airbag strip (31) and the lower airbag strip (41).

Images