Hemiplegic patient four-limb rehabilitation training device capable of self-adapting to stroke and adjusting intensity

Abstract

The invention relates to a rehabilitation training device, in particular to a hemiplegic patient four-limb rehabilitation training device capable of self-adapting to stroke and adjusting intensity, which comprises a shell mounted on a base and a deflection frame which is rotatably mounted on the shell and can perform linkage deflection when an adjusting seat is inserted into the base in a sliding manner, the deflection frame is provided with a lower limb training mechanism and an upper limb training mechanism which are linked with each other. When the training stroke is adjusted, the training intensity of the training device can be adjusted accordingly, so that when users with different heights and different strength intensities are trained, self-adaptive stroke adjustment and intensity matching can be achieved, and it is ensured that each user can adjust the training stroke according to own physiological characteristics; according to the characteristics of the height, the body shape and the strength of a user, the device can correspondingly adjust the amplitude and the resistance of training, and therefore it is guaranteed that appropriate challenges can be provided for each time of training.

Description

Technical Field

[0001] The invention relates to a rehabilitation training device, in particular to a limb rehabilitation training device for hemiplegic patients with self-adaptive stroke and intensity adjustment. Background Art

[0002] The limb rehabilitation training device for hemiplegic patients is a medical rehabilitation device specially used to help hemiplegic patients recover their limb functions. Hemiplegia is usually caused by limb movement dysfunction due to stroke, brain trauma, nervous system diseases, etc. Patients may experience problems such as unilateral limb weakness, movement incoordination, sensory impairment, etc. The rehabilitation training device uses scientific training methods and mechanical assistance to help patients recover limb strength, motor ability and coordination, and improve their quality of life.

[0003] At present, there are some obvious limitations in the actual use of limb rehabilitation training devices for hemiplegic patients. Due to the large individual differences among hemiplegic patients, the factors involved include age, height, physical strength, etc. These differences make it difficult for existing rehabilitation training devices to fully adapt to the unique needs of each patient. For example, patients of different heights require different training itineraries during rehabilitation training, and patients of different strengths have different requirements for training intensity. Therefore, if patients cannot make adaptive adjustments according to their actual conditions during rehabilitation training, they often face unsatisfactory results or even discomfort. Summary of the invention

[0004] The purpose of the present invention is to provide a limb rehabilitation training device for hemiplegic patients with adaptive stroke and intensity adjustment to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A limb rehabilitation training device for hemiplegic patients with adaptive stroke and intensity adjustment comprises a base and an adjustment seat slidably mounted on the base, a training structure is arranged on the base, the training structure is connected to a rack mounted on the adjustment seat, and the training structure comprises: A shell mounted on the base and a sway frame rotatably mounted on the shell and capable of swaying in conjunction with the adjustment seat when the adjustment seat is slidably inserted into the base, wherein the sway frame is respectively equipped with a lower limb training mechanism and an upper limb training mechanism that are mutually linked; The lower limb training mechanism includes a first central axis rotatably mounted on the shell, a transmission member mounted on the first central axis and connected to the rack, a first crank mounted on the first central axis, and a second crank slidably sleeved on the first crank and linked with the transmission member to adjust the length of the lever arm.

[0006] An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity as described above: A connecting seat is fixed on the adjusting seat through a connecting column, and the connecting column slides in a sliding groove correspondingly opened on the base. The sliding groove is used to guide the adjusting seat to slide along a predetermined direction to achieve the adjustment of the rehabilitation training stroke.

[0007] An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity as described above: A Y-shaped frame is fixed on the connecting seat. The Y-shaped frame is fixedly connected to the rack, and the rack is in sliding abutment with a contact wheel rotatably connected to the inner wall of the housing. The contact wheel is used to limit the linear movement of the rack.

[0008] An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity as described above: A motor is installed on the housing, and a worm is fixedly installed on the output shaft of the motor; One end of the worm is fixed with a screw rod, and the other end of the screw rod is rotatably connected to the housing. The screw rod is threadedly connected to the connecting seat. The motor drives the connecting seat to move along the sliding groove through the worm and the screw rod to achieve the adjustment of the rehabilitation training stroke.

[0009] An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity as described above: The bottom of the swing frame is rotatably sleeved on the first central axis. A worm gear is fixed at the central part of the bottom of the swing frame. The worm gear meshes with the worm. The cooperation of the worm gear and the worm is used to achieve the swing movement of the swing frame.

[0010] An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity as described above: The transmission member includes a threaded sleeve sleeved on the first central axis, a third gear threadedly connected to the threaded sleeve and rotatably connected to the housing, and a telescopic assembly connected to the third gear; The third gear meshes with the rack. A rotation prevention groove is opened on the threaded sleeve, and a rotation prevention protrusion is fixed on the housing corresponding to the rotation prevention groove. The cooperation of the rotation prevention groove and the rotation prevention protrusion is used to prevent the threaded sleeve from rotating.

[0011] An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity as described above: The telescopic assembly includes an adjusting block rotatably connected to one end of the threaded sleeve and rotatably sleeved on the first central axis, and a connecting rod with two ends respectively hinged to the adjusting block and the second crank; A foot pedal is rotatably installed on the second crank. The combined length of the first crank and the second crank can achieve the adjustment of the force arm length through the sliding of the adjusting block and the cooperation of the connecting rod.

[0012] A limb rehabilitation training device for hemiplegic patients with adaptive stroke and intensity adjustment as described above: a first gear is fixedly connected to the central part of the first central axis, and magnetic counterweight plates are fixed on the first central axis on both sides of the first gear, and the magnetic counterweight plates are used to provide adjustable resistance to adapt to rehabilitation training needs of different intensities.

[0013] A limb rehabilitation training device for hemiplegic patients with adaptive stroke and intensity adjustment as described above: the upper limb training mechanism comprises a second central axis rotating on the top of the deflection frame, a second gear fixed at the center of the second central axis, and hand cranks installed at both ends of the second central axis; A chain is connected between the second gear and the first gear, and the second central axis is linked with the first central axis through the chain to achieve coordinated rehabilitation training of limbs.

[0014] The limb rehabilitation training device for hemiplegic patients with adaptive stroke and intensity adjustment as described above: a seat is installed on the end of the adjustment seat away from the rack, and the seat is used to provide stable support for the patient.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Through the structural combination and connection relationship of the reasonably designed training structure, the training intensity of the training device can be adjusted accordingly when the training stroke is adjusted, so that when users of different heights and strengths are training, adaptive stroke adjustment and intensity matching can be achieved, ensuring that each user can obtain the most suitable training mode according to their own physiological characteristics.

[0016] Specifically, when the training device adjusts its stroke, it will adjust the training amplitude and resistance accordingly based on the user's height, body shape and strength characteristics, thereby ensuring that each training session provides an appropriate challenge. This not only ensures the scientific nature and pertinence of the training, but also avoids poor results or injury risks caused by excessive or insufficient intensity. Through this adaptive adjustment, users can focus more on the rehabilitation effect during training without having to worry too much about discomfort or adjustments to the training intensity.

[0017] Meanwhile, thanks to the reasonable design of the structural combination and connection relationship, the training device can flexibly adapt to the changes of different users. Whether it is an individual with a relatively tall height or a patient with relatively weak physical strength, they can all obtain an adaptive and personalized rehabilitation experience on the same device. The stroke and intensity during the training process will be adjusted according to individual needs, so that each training has the optimal effect, thereby promoting rehabilitation more efficiently. This innovative design not only improves the accuracy of rehabilitation training, but also greatly enhances the usability of the device, avoiding the defect of insufficient adaptability to individual differences in previous devices. The training device can better meet the needs of patients, ensuring that every user can carry out efficient rehabilitation training in a comfortable environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Structural schematic diagram of a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0019] Figure 2 Structural schematic diagram of another orientation of a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0020] Figure 3 Structural schematic diagram of a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity after removing the outer shell.

[0021] Figure 4 Structural schematic diagram of the base and the adjustment seat in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0022] Figure 5 Structural schematic diagram of the base in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0023] Figure 6 Structural schematic diagram of the adjustment seat in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0024] Figure 7 Structural schematic diagram of the training structure in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0025] Figure 8 Structural schematic diagram of the rack in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0026] Figure 9 Structural schematic diagram of the yaw frame in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0027] Figure 10 Structural schematic diagram of the lower limb training mechanism and the upper limb training mechanism in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0028] Figure 11 It is a schematic structural diagram of the lower limb training mechanism in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0029] Figure 12 It is a schematic structural diagram of the chain in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0030] Figure 13 It is a schematic structural diagram of the upper limb training mechanism in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0031] Figure 14 It is a schematic structural diagram of the lower limb training mechanism in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0032] Figure 15 It is a schematic structural diagram of the lower limb training mechanism of the four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity after removing the magnetic counterweight disk.

[0033] Figure 16 It is a schematic structural diagram of the partial decomposition of the lower limb training mechanism in a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity.

[0034] In the figure: 1. Base; 2. Adjusting seat; 3. Seat; 4. Connecting seat; 5. Y-shaped frame; 6. Rack; 7. Outer shell; 8. Contact wheel; 9. Screw; 10. Worm; 11. Motor; 12. Worm gear; 13. Yaw frame; 14. First central shaft; 15. First gear; 16. Magnetic counterweight disk; 17. Chain; 18. Second gear; 19. Second central shaft; 20. Hand crank; 21. Third gear; 22. Threaded sleeve; 23. Adjusting block; 24. Connecting rod; 25. First crank; 26. Second crank; 27. Footrest. Specific implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0036] Please refer to Figures 1 to 11 , in the embodiments of the present invention, a four-limb rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity includes a base 1 and an adjusting seat 2 slidably installed on the base 1. A training structure is provided on the base 1, and the training structure is connected to a rack 6 installed on the adjusting seat 2. The training structure includes: A housing 7 mounted on the base 1 and a sway frame 13 rotatably mounted on the housing 7 and capable of swaying in conjunction with the adjustment seat 2 when it is slidably inserted into the base 1, wherein the sway frame 13 is respectively mounted with a lower limb training mechanism and an upper limb training mechanism that are mutually linked; The lower limb training mechanism includes a first central axis 14 rotatably mounted on the housing 7, a transmission member mounted on the first central axis 14 and connected to the rack 6, a first crank 25 mounted on the first central axis 14, and a second crank 26 slidably sleeved on the first crank 25 and linked with the transmission member to adjust the length of the lever arm.

[0037] In this embodiment, when using the device, the patient can flexibly adjust the training stroke according to his / her own rehabilitation needs and physical condition to achieve the best training effect. In the specific operation process, when the training stroke needs to be adjusted, the adjustment seat 2 is smoothly slid and plugged in the base 1 along the preset track. As the adjustment seat 2 gradually slides into the base 1 and completes the plugging, this action will synchronously drive the rack 6 connected thereto to produce corresponding displacement. At the same time, the deflection frame 13 is prompted to swing steadily on the housing 7 toward the side where the adjustment seat 2 is located, thereby realizing the coordinated adjustment of the overall structure of the device. In this process, the displacement of the rack 6 will further drive the transmission member engaged with it to start moving. As a key linkage component inside the device, the transmission member can accurately transmit the movement of the rack 6 and convert it into the movement of other components. Specifically, the transmission member will be linked to make the second crank 26 slide and plug on the first crank 25. This sliding plug-in design allows the combined length between the first crank 25 and the second crank 26 to be flexibly adjusted according to actual needs, thereby achieving the adjustment of different force arms. Through structural design, the device can adaptively adjust the intensity of the training stroke according to the individual differences and rehabilitation progress of the patient, provide patients with a more personalized and precise rehabilitation training plan, and effectively improve the effect and comfort of rehabilitation training.

[0038] See also Figures 1 to 6 As a further solution of the present invention, a connecting seat 4 is fixed on the adjustment seat 2 through a connecting column, and the connecting column slides in a corresponding slide groove opened on the base 1, and the slide groove is used to guide the adjustment seat 2 to slide along a predetermined direction to achieve adjustment of the rehabilitation training stroke.

[0039] A Y-shaped frame 5 is fixed on the connecting seat 4, and the Y-shaped frame 5 is fixedly connected to the rack 6. The rack 6 is in sliding contact with a contact wheel 8 rotatably connected to the inner wall of the shell 7, and the contact wheel 8 is used to limit the rack 6 from moving in a straight line.

[0040] In this embodiment, on the base 1, a vertical sliding groove is provided at a position corresponding to the connecting column. The function of this sliding groove is to limit the movement track of the connecting column, so that it can only slide smoothly along a predetermined direction within the sliding groove, thereby avoiding unnecessary shaking or deviation of the connecting column during the adjustment process. The upper end of the connecting column is fixedly connected with a connecting seat 4, and the connecting seat 4 plays a role of connection and support. It is firmly connected with the rack 6 through a Y-shaped frame 5. The design of the Y-shaped frame 5 not only enhances the structural stability but also provides a reliable fixing point for the rack 6, ensuring that the rack 6 can maintain smooth and accurate movement during the movement process; When the adjusting seat 2 slides and adjusts on the base 1, since the connecting column is restricted to slide along a predetermined direction within the sliding groove, the movement of the connecting column can accurately drive the connecting seat 4 to move. And the connecting seat 4 is connected with the rack 6 through the Y-shaped frame 5, so that the rack 6 can perform a smooth translational movement along with the movement of the connecting seat 4. This design enables the sliding adjustment of the adjusting seat 2 on the base 1 to be converted into the translational movement of the rack 6, thereby realizing the linkage adjustment of the internal structure of the device.

[0041] Please refer to Figures 7 to 9 , as a further solution of the present invention, a motor 11 is installed on the housing 7, and a worm 10 is fixedly installed on the output shaft of the motor 11; One end of the worm 10 is fixed with a screw rod 9, the other end of the screw rod 9 is rotatably connected to the housing 7, the screw rod 9 is threadedly connected with the connecting seat 4, and the motor 11 drives the connecting seat 4 to move along the sliding groove through the worm 10 and the screw rod 9 to realize the adjustment of the rehabilitation training stroke.

[0042] In this embodiment, when the motor 11 is started, its output shaft starts to rotate, and then drives the connected worm 10 to rotate synchronously. One end of the worm 10 is fixedly connected with the screw rod 9. Therefore, when the worm 10 rotates, the screw rod 9 will also rotate synchronously. The screw rod 9 and the connecting seat 4 are connected by a threaded connection method. This connection method enables the rotation of the screw rod 9 to be converted into the linear movement of the connecting seat 4; Since the connecting seat 4 is designed to be able to slide and insert only linearly on the base 1, this structure restricts the movement direction of the connecting seat 4, making it only able to perform linear sliding along the axis direction of the screw rod 9. Therefore, when the screw rod 9 rotates, the connecting seat 4 will perform corresponding sliding adjustment on the screw rod 9 according to the pitch and rotation direction of the thread. This sliding adjustment process is smooth and accurate, and can ensure that the plug-in adjustment of the adjusting seat 2 on the base 1 achieves the expected effect; By driving the rotation of the worm 10 and the screw rod 9 by the motor 11, and then driving the linear sliding of the connecting seat 4, the flexible adjustment of the adjusting seat 2 on the base 1 is realized, ensuring the stability and reliability of the entire adjustment process.

[0043] Please refer to Figure 9 As a further solution of the present invention, the bottom of the yaw frame 13 is rotatably sleeved on the first central shaft 14. A worm gear 12 is fixed at the central part of the bottom of the yaw frame 13. The worm gear 12 meshes with the worm 10. The cooperation between the worm gear 12 and the worm 10 is used to realize the yaw movement of the yaw frame 13.

[0044] In this embodiment, when the motor 11 starts and drives the worm 10 to rotate, due to the tight meshing between the worm 10 and the worm gear 12, the worm gear 12 will rotate synchronously. This meshing transmission method can not only efficiently transmit power, but also ensure the smoothness and accuracy of the transmission process; The worm gear 12 is fixedly installed on the yaw frame 13, and the yaw frame 13 is rotatably installed on the housing 7. This design enables the yaw frame 13 to perform a yaw action within a certain range, thereby realizing the adjustment function of the device. When the worm gear 12 rotates, its power will be directly transmitted to the yaw frame 13, and then drive the yaw frame 13 to perform a yaw action on the housing 7. This yaw action is designed according to the actual use requirements and can meet the adjustment requirements of users in different scenarios; In addition, there is a self-locking effect between the worm gear 12 and the worm 10. This self-locking effect is an important characteristic of the worm and worm gear transmission. It can effectively limit the further yaw angle of the yaw frame 13 after the yaw frame 13 completes the yaw adjustment. This limiting effect can ensure the stability of the yaw frame 13 during the adjustment process. Through this self-locking mechanism, the device can ensure the safety and reliability of use while ensuring the adjustment flexibility.

[0045] Please refer to Figures 14 to 16 As a further solution of the present invention, the transmission member includes a threaded sleeve 22 sleeved on the first central shaft 14, a third gear 21 threadedly connected to the threaded sleeve 22 and rotatably connected to the housing 7, and a telescopic assembly connected to the third gear 21; The third gear 21 meshes with the rack 6. A rotation prevention groove is formed on the threaded sleeve 22, and a rotation prevention protrusion is fixed on the housing 7 corresponding to the rotation prevention groove. The cooperation between the rotation prevention groove and the rotation prevention protrusion is used to prevent the threaded sleeve 22 from rotating.

[0046] The telescopic assembly includes an adjustment block 23 rotatably connected to one end of the threaded sleeve 22 and rotatably sleeved on the first central shaft 14, and a connecting rod 24 with both ends hinged to the adjustment block 23 and the second crank 26 respectively; A pedal 27 is rotatably mounted on the second crank 26, and the combined length of the first crank 25 and the second crank 26 can be adjusted by the sliding of the adjusting block 23 and the cooperation of the connecting rod 24 to adjust the length of the force arm.

[0047] In this embodiment, the cooperation between the threaded sleeve 22 and the first central shaft 14 and the threaded connection with the third gear 21 are the core mechanisms for realizing the force arm adjustment. The threaded sleeve 22 is closely sleeved on the first central shaft 14 to ensure a stable connection between the two. At the same time, the threaded sleeve 22 and the third gear 21 are connected by a threaded connection. This connection method can not only transmit power but also achieve precise displacement adjustment. The third gear 21 is rotatably mounted on the inner wall of the housing 7, enabling it to rotate freely within a certain range; In order to limit the movement mode of the threaded sleeve 22 within the housing 7, a rotation - stopping groove is specially designed on the threaded sleeve 22, and a corresponding rotation - stopping protrusion is provided on the housing 7. The sliding plug - in design of the rotation - stopping groove and the rotation - stopping protrusion limits the rotational freedom of the threaded sleeve 22, making it unable to rotate within the housing 7 and only able to perform translational sliding adjustment along the direction of the first central shaft 14. This design ensures the accuracy and stability of the movement direction of the threaded sleeve 22 and provides a reliable mechanical basis for subsequent force arm adjustment; One end of the threaded sleeve 22 is connected to the adjusting block 23 by a rotatable mounting method. The adjusting block 23 is slidably sleeved on the first central shaft 14 and can slide freely on the first central shaft 14. A fixed - length connecting rod 24 is connected between the adjusting block 23 and the second crank 26 by a hinged method. At the same time, the second crank 26 is slidably sleeved on the first crank 25. This design enables the second crank 26 to slide on the first crank 25, thereby changing the combined length of the two; When it is necessary to adjust the training stroke of the device, the adjusting block 23 slides on the first central shaft 14 towards the first crank 25. Since the length of the connecting rod 24 is fixed and its two ends act on the adjusting block 23 and the second crank 26 respectively, the sliding of the adjusting block 23 will drive the second crank 26 to slide on the first crank 25. This sliding causes the combined length of the first crank 25 and the second crank 26 to change, thereby realizing the adjustment of different force arms, and the device can flexibly adjust the training intensity according to the actual needs of the user; In addition, the third gear 21 and the rack 6 are connected by meshing. When the training stroke of the device needs to be adjusted to be reduced, the third gear 21 will drive the threaded sleeve 22 to perform corresponding translational sliding adjustment through the meshing transmission with the rack 6. At this time, since the combined length of the first crank 25 and the second crank 26 changes, the force arm will be correspondingly lengthened, thereby reducing the training intensity.

[0048] Please refer to Figure 14 and Figure 15As a further solution of the present invention, a first gear 15 is fixedly connected to the center of the first central axis 14, and magnetic counterweight plates 16 are fixed on the first central axis 14 on both sides of the first gear 15. The magnetic counterweight plates 16 are used to provide adjustable resistance to adapt to rehabilitation training needs of different intensities.

[0049] In this embodiment, the first central axis 14 is designed to be able to rotate freely in the threaded sleeve 22. The first central axis 14 is rotatably mounted on the housing 7 through the threaded sleeve 22. A first gear 15 is fixedly mounted at the center of the first central axis 14. The first gear 15 is designed to rotate in the cavity of the worm wheel 12. This design ensures that the movement of the first gear 15 will not cause any interference to the meshing transmission between the worm wheel 12 and the worm 10. The two can independently and efficiently complete their respective transmission tasks, ensuring that the power transmission process of the entire device is smooth and unobstructed. On both sides of the first gear 15, a magnetic counterweight plate 16 is fixedly installed on the first central axis 14. The magnetic counterweight plate 16 is designed to be able to fit tightly on both sides of the deflection frame 13, and when the magnetic counterweight plate 16 rotates, the deflection frame 13 will not hinder it, and the two can coexist harmoniously without affecting each other. At the same time, the existence of the magnetic counterweight plate 16 will not have any effect on the deflection action of the deflection frame 13 on the housing 7, ensuring that the deflection frame 13 can freely perform the deflection action; When the yaw frame 13 performs yaw motion, its motion is centered on the first central axis 14. This design makes the motion of the yaw frame 13 more stable and precise, while also ensuring that the first central axis 14 is not affected by the motion of the yaw frame 13 during rotation. The two are independent of each other and do not interfere with each other.

[0050] See also Figures 11 to 13 As a further solution of the present invention, the upper limb training mechanism includes a second central axis 19 rotating on the top of the deflection frame 13, a second gear 18 fixed at the center of the second central axis 19, and hand cranks 20 installed at both ends of the second central axis 19; A chain 17 is transmission-connected between the second gear 18 and the first gear 15 , and the second central axis 19 is linked with the first central axis 14 through the chain 17 to achieve coordinated rehabilitation training of the limbs.

[0051] In this embodiment, the second gear 18 is connected to the first central shaft 14 through a chain 17. This design enables the second gear 18 to rotate synchronously driven by the chain 17 when the first central shaft 14 rotates, thus realizing the linkage transmission inside the device. When the patient uses the device, the device can be operated by grasping the hand crank arm 20. The hand crank arm 20 is designed to be able to rotate freely around the second central shaft 19. This design allows the patient to easily drive the device to operate manually. When the patient grasps the hand crank arm 20 and applies force to make it rotate, the hand crank arm 20 will perform a rotational motion around the second central shaft 19. Since the second gear 18 is fixedly installed on the second central shaft 19, the rotation of the hand crank arm 20 will directly drive the second gear 18 to rotate synchronously; The rotation of the second gear 18 further transmits power through the chain 17, enabling the first central shaft 14 to rotate accordingly. This linkage mechanism can not only achieve the coordinated movement of the limbs. With this design, when the patient uses the device, the patient can manually operate the hand crank arm 20 to achieve the linkage effect of the limbs, thus better meeting the needs of rehabilitation training.

[0052] Please refer to Figures 1 to 4 , as a further solution of the present invention, a seat 3 is installed at one end of the adjusting base 2 away from the rack 6, and the seat 3 is used to provide stable support for the patient.

[0053] In this embodiment, a seat 3 is equipped on the adjusting base 2. This design fully considers the convenience and comfort of the patient during use. The seat 3 not only provides stable support for the patient but also ensures that the patient can maintain a comfortable sitting posture when using the device for rehabilitation training. This design allows the patient to sit and lean on the seat 3 more relaxedly during the four-limb rehabilitation training, thus better focusing on the training process.

[0054] The above embodiments are exemplary rather than restrictive. Therefore, without departing from the spirit or basic characteristics of the present invention, all technical solutions that can implement the present invention in other specific forms are included in the present invention.

Claims

1. An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity, comprising a base (1) and an adjustment seat (2) slidably mounted on the base (1), characterized in that, The base (1) is provided with a training structure, the training structure being connected to a rack (6) mounted on the adjustment seat (2), the training structure comprising: A housing (7) mounted on the base (1) and a sway frame (13) rotatably mounted on the housing (7) and capable of swaying in conjunction with the adjustment seat (2) when the adjustment seat (2) is slidably inserted into the base (1), wherein the sway frame (13) is respectively mounted with a lower limb training mechanism and an upper limb training mechanism that are linked to each other; The lower limb training mechanism comprises a first central axis (14) rotatably mounted on the housing (7), a transmission member mounted on the first central axis (14) and connected to the rack (6), a first crank (25) mounted on the first central axis (14), and a second crank (26) slidably sleeved on the first crank (25) and linked to the transmission member to adjust the length of the lever arm.

2. The four-limb rehabilitation training device for hemiplegic patients with adaptively adjusted stroke intensity according to claim 1, characterized in that, A connecting seat (4) is fixed to the adjustment seat (2) via a connecting column, and the connecting column slides in a corresponding slide groove provided on the base (1), and the slide groove is used to guide the adjustment seat (2) to slide along a predetermined direction, so as to adjust the rehabilitation training stroke.

3. An extremity rehabilitation training device for hemiplegic patients with adaptive stroke adjustment intensity according to claim 2, characterized in that A Y-shaped frame (5) is fixed on the connecting seat (4), the Y-shaped frame (5) is fixedly connected to the rack (6), the rack (6) is in sliding contact with a contact wheel (8) rotatably connected to the inner wall of the housing (7), and the contact wheel (8) is used to limit the linear movement of the rack (6).

4. An upper and lower limb rehabilitation training device for hemiplegic patients with self-adaptive stroke adjustment intensity according to claim 2, characterized in that A motor (11) is mounted on the housing (7), and a worm (10) is fixedly mounted on the output shaft of the motor (11); A screw rod (9) is fixed to one end of the worm (10), and the other end of the screw rod (9) is rotatably connected to the housing (7). The screw rod (9) is threadedly connected to the connecting seat (4). The motor (11) drives the connecting seat (4) to move along the slide groove through the worm (10) and the screw rod (9), so as to adjust the rehabilitation training stroke.

5. An upper and lower limb rehabilitation training device for hemiplegic patients with adaptively adjusted stroke intensity according to claim 4, characterized in that, The bottom of the deflection frame (13) is rotatably sleeved on the first central axis (14); a worm wheel (12) is fixed at the bottom center of the deflection frame (13); the worm wheel (12) is meshed with the worm (10); the cooperation between the worm wheel (12) and the worm (10) is used to realize the deflection movement of the deflection frame (13).

6. An extremity rehabilitation training device for hemiplegic patients with intensity adjusted adaptively according to the stroke, characterized in that, The transmission member comprises a threaded sleeve (22) sleeved on the first central shaft (14), a third gear (21) threadedly connected to the threaded sleeve (22) and rotatably connected to the housing (7), and a telescopic assembly connected to the third gear (21); The third gear (21) is meshed with the rack (6); a rotation-stopping groove is provided on the threaded sleeve (22); a rotation-stopping protrusion is fixed on the housing (7) at a position corresponding to the rotation-stopping groove; the cooperation between the rotation-stopping groove and the rotation-stopping protrusion is used to prevent the threaded sleeve (22) from rotating.

7. An upper and lower limb rehabilitation training device for hemiplegic patients with self - adaptive stroke - adjusted intensity, characterized in that, The telescopic assembly comprises an adjustment block (23) rotatably connected to one end of the threaded sleeve (22) and rotatably sleeved on the first central shaft (14), and a connecting rod (24) with two ends respectively hinged on the adjustment block (23) and a second crank (26); A pedal (27) is rotatably mounted on the second crank (26), and the combined length of the first crank (25) and the second crank (26) can be adjusted by sliding the adjustment block (23) and cooperating with the connecting rod (24) to achieve the length of the lever arm.

8. An extremity rehabilitation training device for hemiplegic patients with adaptively adjusted stroke intensity according to claim 6, characterized in that, A first gear (15) is fixedly connected to the center of the first central axis (14), and magnetic weight plates (16) are fixed to the first central axis (14) on both sides of the first gear (15). The magnetic weight plates (16) are used to provide adjustable resistance to meet the needs of rehabilitation training of different intensities.

9. An apparatus for the rehabilitation training of the limbs of hemiplegic patients with an intensity adjusted adaptively according to the stroke, characterized in that, The upper limb training mechanism comprises a second central axis (19) rotating on the top of the yaw frame (13), a second gear (18) fixed at the center of the second central axis (19), and hand crank arms (20) installed at both ends of the second central axis (19); A chain (17) is transmission-connected between the second gear (18) and the first gear (15), and the second central axis (19) is linked with the first central axis (14) via the chain (17) to achieve coordinated rehabilitation training of the limbs.

10. An upper and lower limb rehabilitation training device for hemiplegic patients with self-adaptive stroke adjustment intensity according to claim 1, characterized in that, A seat (3) is mounted on one end of the adjustment seat (2) away from the rack (6), and the seat (3) is used to provide stable support for the patient.

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