Recovery training device for orthopedic trauma

Abstract

The invention relates to the technical field of lower limb recovery, and provides an orthopedic trauma recovery training device which comprises a height adjusting assembly, and the top of the height adjusting assembly is provided with a thigh cushion used for supporting the hip of a patient; the backrest assembly is rotationally connected to the rear end of the height adjusting assembly through a damping connector, and linkage control over the hip joint, the knee joint and the ankle joint is achieved through the arrangement of structures such as meshing transmission of a first driving gear and a second meshing gear and meshing transmission of a second driving gear and the second meshing gear; when the thigh supporting plate swings, gear transmission forcibly drives the shank supporting plate and the foot connecting rod to move cooperatively according to a preset track, the natural flexion and extension rhythm of lower limb joints when a human body walks is simulated truly, the problem of motion incoordination caused by single joint training is solved, and the problems of motion incoordination and insufficient adaptability in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lower limb recovery, in particular, to a recovery training device for orthopedic trauma. BACKGROUND

[0002] Orthopedic trauma is a common type of injury in clinical practice, especially with the increase in traffic accidents and sports injuries, the number of patients with lower limb fractures, joint injuries and postoperative dysfunction continues to rise. For these patients, surgical treatment is only the first step in rehabilitation, and subsequent scientific and systematic rehabilitation training is crucial for restoring lower limb motor function, preventing muscle atrophy and joint stiffness.

[0003] Currently, research and application of lower limb rehabilitation training devices have made certain progress. Existing rehabilitation training equipment mainly falls into two categories: one is a simple passive training device, such as a fixed treadmill, a simple limb support frame, etc. This type of equipment has a single function and can only provide basic joint movement training, and cannot be adjusted according to individual differences, limiting the rehabilitation effect. The other is a complex rehabilitation robot system, such as a lower limb exoskeleton robot, a bed-type rehabilitation training robot, etc. However, such equipment often has problems such as high cost, complex control system and high operation threshold, making it difficult to popularize and promote in primary medical institutions and home rehabilitation environments.

[0004] In clinical practice, existing lower limb rehabilitation training devices have the following shortcomings: first, most devices lack the ability to simulate the coordinated movement of the hip, knee and ankle joints, and the joint movement is not coordinated during training, which cannot truly reproduce the natural gait of human walking or cycling; second, the height adjustment and backrest angle adjustment of the device are mostly manual operations, which are low in efficiency and poor in stability, making it difficult to meet the needs of patients of different heights and body positions; third, the adjustment function of the distance between the two legs is missing or inconvenient, which makes it difficult for the patient's hip joint to accurately locate the center of rotation of the training mechanism, affecting the training effect and comfort; fourth, some devices lack reliable limb fixation mechanisms, and the patient's limbs are prone to slipping during training, posing a safety hazard; fifth, the transmission mechanism of existing equipment mostly uses a single driving mode, making it difficult to achieve linkage control between joints, the training mode is rigid, and it cannot meet the individual training needs of patients at different rehabilitation stages. SUMMARY

[0005] The present application provides a recovery training device for orthopedic trauma, which solves the problems of uncoordinated movement and insufficient adaptability in the related art.

[0006] The technical solution of the present application is as follows: a recovery training device for orthopedic trauma, comprising a height adjustment assembly, the top of the height adjustment assembly is provided with a thigh cushion for supporting the patient's hip; A backrest assembly, rotatably connected to the rear end of the height adjustment assembly via a damping connector, for adjusting the tilt angle of the patient's back; and A recovery training component is mounted on the front end of the height adjustment component; The rehabilitation training component includes a spacing adjustment component arranged in the horizontal direction, and two sets of support mechanisms for rehabilitation training of the patient's lower limbs are symmetrically arranged on the spacing adjustment component. The support mechanism, from bottom to top, includes: a support plate connected to the spacing adjustment component, a thigh support component hinged to the support plate, a calf support component hinged to the front end of the thigh support component, and a foot support component hinged to the front end of the calf support component.

[0007] As a preferred embodiment of the present invention, the height adjustment assembly includes a base, and a cylinder is connected to the top of the base via at least one damping connector. The telescopic end of the cylinder is fixedly connected to a top plate, and the upper surface of the top plate is fixedly supported by a connecting column for the groin cushion.

[0008] As a preferred embodiment of the present invention, a plurality of cylinders arranged in a rectangular pattern are provided between the base and the top plate, and the upper and lower ends of each cylinder are respectively hinged to the base and the top plate through damping connectors.

[0009] As a preferred embodiment of the present invention, the backrest assembly includes a backrest cushion and a first telescopic cylinder. The back of the backrest cushion is hinged to the telescopic end of the first telescopic cylinder via a first hinge block, and the cylinder body end of the first telescopic cylinder is hinged to the side wall of the height adjustment assembly via a second hinge block.

[0010] As a preferred embodiment of the present invention, the spacing adjustment assembly includes a lead screw motor fixedly installed at the front end of the height adjustment assembly. The output end of the lead screw motor is connected to a transmission shaft, and the transmission shaft drives a bidirectional lead screw. Two limiting sliders that slide in opposite directions or in opposite directions are threaded onto the bidirectional lead screw, and the support plate is fixedly installed on the limiting sliders one by one.

[0011] In a preferred embodiment of the present invention, a first hinge plate is fixedly provided at the upper end of the support plate, and the cylinder end of a first connecting cylinder is hinged to the first hinge plate; the telescopic end of the first connecting cylinder is hinged to the middle part of the thigh support assembly through a first end hinge block, and the cylinder end of the first connecting cylinder is hinged to the first hinge plate through a first bottom hinge block.

[0012] As a preferred embodiment of the present invention, the thigh support assembly includes a thigh support plate and a second hinge plate fixed on the support plate; The rear end of the thigh support plate is hinged to the upper end of the second hinge plate, and the upper surface of the thigh support plate is provided with a thigh fixing strap for fixing the thigh. A second connecting cylinder is provided below the thigh support plate. The telescopic end of the second connecting cylinder is hinged to the bottom front end of the thigh support plate through a second end hinge block. The cylinder body end of the second connecting cylinder is hinged to the lower end of the second hinge plate through a second bottom hinge block. A first drive gear is fixedly sleeved on the front end shaft of the thigh support plate.

[0013] As a preferred embodiment of the present invention, the calf support assembly includes a calf support plate and a third hinge plate fixed to the front end of the thigh support plate. The rear end of the lower leg support plate is hinged to the third hinge plate, and the upper surface of the lower leg support plate is provided with a lower leg fixing strap. A second meshing gear is fixedly sleeved on the side rotating shaft of the lower leg support plate, and the second meshing gear meshes with the first driving gear for transmission. A third connecting cylinder is provided below the calf support plate. The telescopic end of the third connecting cylinder is hinged to the bottom front end of the calf support plate through a third end hinge block. The cylinder body end of the third connecting cylinder is hinged to the lower end of the third hinge plate through a third bottom hinge block.

[0014] As a preferred embodiment of the present invention, a second drive gear is fixedly sleeved on the front end rotating shaft of the lower leg support plate.

[0015] As a preferred embodiment of the present invention, the foot support assembly includes a foot connecting rod and a foot support plate; One end of the foot connecting rod is hinged to the front end of the lower leg support plate, and a second meshing gear is fixedly sleeved on the rotating shaft of the foot connecting rod. The second meshing gear meshes with the second driving gear for transmission. The other end of the foot connecting rod is fixedly connected to a foot support plate for placing the patient's foot, and the foot support plate is provided with a foot fixing strap.

[0016] The working principle and beneficial effects of this invention are as follows: This invention achieves coordinated control of the hip, knee, and ankle joints through the meshing transmission of the first driving gear and the second meshing gear, and the meshing transmission of the second driving gear and the second meshing gear. When the thigh support plate swings, the gear transmission forces the lower leg support plate and the foot connecting rod to move in coordination along a preset trajectory, which truly simulates the natural flexion and extension rhythm of the lower limb joints when the human body walks, and avoids the problem of movement incoordination caused by single joint training.

[0017] This invention achieves multi-dimensional adaptive adjustment of the device through the hinge structure of the cylinder and damping connector, and the adjustment structure of the lead screw motor and bidirectional lead screw. Multiple cylinders form parallel support through the damping connector, which can stably adapt to patients of different heights. The lead screw motor drives the bidirectional lead screw to rotate, so that the limit slider drives the support plate to accurately adjust the distance between the legs, ensuring accurate hip joint alignment and meeting the personalized training needs of patients with different body types. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a bottom view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall structure of the height adjustment component of the present invention; Figure 4 This is a schematic diagram of the overall structure of the recovery training component of the present invention; Figure 5 This is a schematic diagram of the overall structure of the unilateral recovery training component of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the diagram; Figure 7 For the present invention Figure 5 Enlarged structural diagram of section B in the diagram.

[0020] In the diagram: 1. Height adjustment assembly; 11. Base; 12. Damping connector; 13. Cylinder; 14. Top plate; 15. Connecting column; 16. Crotch cushion; 2. Backrest assembly; 21. Backrest cushion; 22. First telescopic cylinder; 23. First hinge block; 24. Second hinge block; 3. Recovery training component; 31. Spacing adjustment component; 311. Lead screw motor; 312. Drive shaft; 313. Bidirectional lead screw; 314. Limit slider; 32. Support plate; 321. First hinge plate; 322. First connecting cylinder; 323. First end hinge block; 324. First bottom hinge block; 33. Thigh support assembly; 331. Thigh support plate; 332. Thigh fixing strap; 333. Second connecting cylinder; 334. Second end hinge block; 335. Second bottom hinge block; 336. Second hinge plate; 337. First drive gear; 34. Lower leg support assembly; 341. Lower leg support plate; 342. Second meshing gear; 343. Lower leg fixing belt; 344. Third connecting cylinder; 345. Third end hinge block; 346. Third bottom hinge block; 347. Third hinge plate; 348. Second drive gear; 35. Foot support assembly; 351. Foot connecting rod; 352. Second meshing gear; 353. Foot support plate; 354. Foot fixing strap. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0022] like Figures 1-7 As shown, a rehabilitation training device for orthopedic trauma includes a height adjustment component 1, the top of which is provided with a thigh cushion 16 for supporting the patient's buttocks. Backrest assembly 2, rotatably connected to the rear end of height adjustment assembly 1 via damping connector 12, is used to adjust the tilt angle of the patient's back; and Restore training component 3, which is installed at the front end of height adjustment component 1; Among them, the rehabilitation training component 3 includes a spacing adjustment component 31 arranged in the horizontal direction, and two sets of support mechanisms for rehabilitation training of the patient's lower limbs are symmetrically arranged on the spacing adjustment component 31. The support mechanism, from bottom to top, includes: a support plate 32 connected to the spacing adjustment component 31, a thigh support component 33 hinged to the support plate 32, a calf support component 34 hinged to the front end of the thigh support component 33, and a foot support component 35 hinged to the front end of the calf support component 34.

[0023] A rehabilitation training device for orthopedic trauma mainly includes a height adjustment component 1, a backrest component 2, and a rehabilitation training component 3. During rehabilitation training, the patient first sits on the groin cushion 16 at the top of the height adjustment component 1, providing stable support for the buttocks. The backrest component 2 is rotatably connected to the rear end of the height adjustment component 1 via a damping connector 12, and can be adjusted and locked according to the patient's desired comfort angle. The rehabilitation training component 3 is installed at the front end of the height adjustment component 1 and is used to train the patient's lower limbs. Specifically, the rehabilitation training component 3 includes a horizontally arranged spacing adjustment component 31, on which two sets of support mechanisms are symmetrically arranged, corresponding to the patient's left and right lower limbs respectively. Each set of support mechanisms is connected sequentially from bottom to top: at the bottom is a support plate 32 fixedly connected to the spacing adjustment component 31; a thigh support component 33 is hinged to the support plate 32; a calf support component 34 is hinged to the front end of the thigh support component 33; and a foot support component 35 is hinged to the front end of the calf support component 34. This multi-stage articulated linkage structure can simulate the movement trajectory of various joints in the human lower limbs, enabling coordinated rehabilitation training of the hip, knee, and ankle joints.

[0024] The height adjustment assembly 1 includes a base 11, and a cylinder 13 is connected to the top of the base 11 via at least one damping connector 12. The telescopic end of the cylinder 13 is fixedly connected to a top plate 14, and the upper surface of the top plate 14 is fixedly supported by a groin cushion 16 via a connecting post 15.

[0025] The base 11 of the height adjustment assembly 1 is placed stably on the ground. A cylinder 13 is connected between the base 11 and the top plate 14 via at least one damping connector 12. When the telescopic rod of the cylinder 13 extends or retracts, the top plate 14, which is fixedly connected to its telescopic end, rises or falls accordingly, thereby adjusting the height of the thigh cushion 16, which is fixed to the upper surface of the top plate 14 via a connecting column 15. The presence of the damping connector 12 provides the cylinder 13 with a certain damping force during extension and retraction, preventing excessively rapid lifting and lowering. It also allows the cylinder 13 a certain amount of sway when subjected to lateral forces, improving the comfort and adaptability of the device. By controlling the air intake or hydraulic pressure of the cylinder 13, the height of the thigh cushion 16 can be precisely adjusted to meet the training needs of patients of different heights, ensuring that the patient's thighs can naturally rest on the subsequent support assembly in a seated position.

[0026] Multiple cylinders 13 arranged in a rectangular pattern are provided between the base 11 and the top plate 14, and the upper and lower ends of each cylinder 13 are respectively hinged to the base 11 and the top plate 14 through damping connectors 12.

[0027] To enhance the stability and load-bearing capacity of height adjustment, multiple rectangularly distributed cylinders 13 are installed between the base 11 and the top plate 14. Each cylinder 13 is hinged to both the base 11 and the top plate 14 via damping connectors 12. This multi-point support and hinged connection forms a stable parallel support structure. When multiple cylinders 13 extend and retract synchronously, they smoothly drive the top plate 14 to rise and fall vertically, effectively preventing tilting or swaying during the process. Simultaneously, the damping connectors 12 at each connection point absorb and buffer vibrations during movement, making height adjustment smoother. Furthermore, when the patient's center of gravity shifts while sitting on the groin cushion 16, each cylinder 13 can adaptively fine-tune its angle via the damping connectors 12, ensuring the rigidity and comfort of the entire seating system.

[0028] The backrest assembly 2 includes a backrest cushion 21 and a first telescopic cylinder 22. The back of the backrest cushion 21 is hinged to the telescopic end of the first telescopic cylinder 22 via a first hinge block 23. The cylinder end of the first telescopic cylinder 22 is hinged to the side wall of the height adjustment assembly 1 via a second hinge block 24.

[0029] The backrest assembly 2 includes a backrest cushion 21 for supporting the patient's back and a first telescopic cylinder 22 for providing power. The back of the backrest cushion 21 is hinged to the telescopic end of the first telescopic cylinder 22 via a first hinge block 23, while the cylinder end of the first telescopic cylinder 22 is hinged to the side wall of the height adjustment assembly 1, such as the side bracket of the base 11 or the top plate 14, via a second hinge block 24. When the telescopic rod of the first telescopic cylinder 22 extends, it pushes the backrest cushion 21 to rotate backward about the damping connector 12, the rotational connection point between it and the height adjustment assembly 1, thereby increasing the backrest angle and allowing the patient to recline; when the telescopic rod retracts, it pulls the backrest cushion 21 to rotate forward, thereby decreasing the backrest angle and allowing the patient to sit upright. By controlling the stroke of the first telescopic cylinder 22, the tilt angle of the backrest cushion 21 can be steplessly adjusted to meet the patient's positional needs at different training stages or resting states.

[0030] The spacing adjustment assembly 31 includes a lead screw motor 311 fixedly installed at the front end of the height adjustment assembly 1. The output end of the lead screw motor 311 is connected to a transmission shaft 312. The transmission shaft 312 drives a bidirectional lead screw 313. Two limit sliders 314 that slide in opposite directions or in opposite directions are threaded onto the bidirectional lead screw 313. The support plate 32 is fixedly installed on the limit sliders 314 one by one.

[0031] The spacing adjustment assembly 31 includes a lead screw motor 311 fixedly mounted at the front end of the height adjustment assembly 1. When it is necessary to adjust the spacing between the two sets of lower limb support mechanisms according to the patient's pelvic width, the lead screw motor 311 is activated, and its output end drives the transmission shaft 312 to rotate. The transmission shaft 312 transmits power to the bidirectional lead screw 313 connected to it. The bidirectional lead screw 313 has two sections of threads with opposite directions of rotation, each threadedly connected to two limiting sliders 314. When the lead screw motor 311 rotates forward, the two limiting sliders 314 slide towards each other under the drive of the bidirectional lead screw 313, reducing the spacing between the two sets of support plates 32; when the motor rotates in reverse, the two limiting sliders 314 slide away from each other, increasing the spacing. The support plates 32 are fixedly mounted on the limiting sliders 314 one-to-one, thereby realizing the adjustment of the patient's leg abduction or adduction range and ensuring that the thigh support assembly 33 can be accurately aligned with the patient's hip joint position.

[0032] A first hinge plate 321 is fixedly provided on the upper end of the support plate 32, and the cylinder end of the first connecting cylinder 322 is hinged on the first hinge plate 321; the telescopic end of the first connecting cylinder 322 is hinged to the middle part of the thigh support assembly 33 through the first end hinge block 323, and the cylinder end of the first connecting cylinder 322 is hinged to the first hinge plate 321 through the first bottom hinge block 324.

[0033] A first hinge plate 321 is fixedly installed at the upper end of the support plate 32. The cylinder end of the first connecting cylinder 322 is hinged to the lower part of the first hinge plate 321 through a first bottom hinge block 324, while its telescopic end is hinged to the middle part of the thigh support assembly 33 through a first end hinge block 323. When the telescopic rod of the first connecting cylinder 322 extends or retracts, since one end is hinged to the fixed first hinge plate 321 and the other end is hinged to the movable thigh support assembly 33, it drives the thigh support assembly 33 to swing up and down around the connection point between its rear hinge point and the second hinge plate 336. This action simulates the flexion and extension movement of the hip joint and is one of the basic movements of lower limb rehabilitation training. By precisely controlling the extension and retraction of the first connecting cylinder 322, the angle of raising or lowering the thigh can be controlled.

[0034] Thigh support assembly 33 includes thigh support plate 331 and second hinge plate 336 fixed on support plate 32; The rear end of the thigh support plate 331 is hinged to the upper end of the second hinge plate 336, and the upper surface of the thigh support plate 331 is provided with a thigh fixing strap 332 for fixing the thigh. A second connecting cylinder 333 is provided below the thigh support plate 331. The telescopic end of the second connecting cylinder 333 is hinged to the bottom front end of the thigh support plate 331 through the second end hinge block 334. The cylinder body end of the second connecting cylinder 333 is hinged to the lower end of the second hinge plate 336 through the second bottom hinge block 335. A first drive gear 337 is fixedly sleeved on the front end shaft of the thigh support plate 331.

[0035] The thigh support assembly 33 includes a thigh support plate 331, the rear end of which is hinged to the upper end of a second hinge plate 336 fixed on a support plate 32, forming a fulcrum for hip joint rotation. A thigh fixation strap 332 is provided on the upper surface of the thigh support plate 331 for reliably binding the patient's thigh to the plate. A second connecting cylinder 333 is located below the thigh support plate 331; its telescopic end is hinged to the bottom front end of the thigh support plate 331 via a second end hinge block 334, and its cylinder end is hinged to the lower end of the second hinge plate 336 via a second bottom hinge block 335. The telescopic movement of the second connecting cylinder 333 can assist in the active lifting or lowering of the thigh support plate 331, or provide damping force for strength training. Crucially, a first driving gear 337 is fixedly mounted on the front pivot of the thigh support plate 331. When the thigh support plate 331 rotates around the rear hinge point, the position and angle of the front pivot change accordingly, and the first driving gear 337 fixed thereon also rotates, thereby providing driving force for subsequent lower leg linkage.

[0036] The calf support assembly 34 includes a calf support plate 341 and a third hinge plate 347 fixed to the front end of the thigh support plate 331. The rear end of the lower leg support plate 341 is hinged to the third hinge plate 347, and the upper surface of the lower leg support plate 341 is provided with a lower leg fixing strap 343. A second meshing gear 342 is fixedly sleeved on the side rotating shaft of the lower leg support plate 341, and the second meshing gear 342 meshes with the first driving gear 337 for transmission. A third connecting cylinder 344 is provided below the calf support plate 341. The telescopic end of the third connecting cylinder 344 is hinged to the bottom front end of the calf support plate 341 through the third end hinge block 345. The cylinder body end of the third connecting cylinder 344 is hinged to the lower end of the third hinge plate 347 through the third bottom hinge block 346.

[0037] The calf support assembly 34 includes a calf support plate 341, the rear end of which is hinged to a third hinge plate 347 fixed to the front end of the thigh support plate 331, forming a fulcrum for knee joint rotation. A calf fixing strap 343 is provided on the upper surface of the calf support plate 341 to fix the calf. A second meshing gear 342 is fixedly sleeved on the side pivot of the calf support plate 341, and this gear is always meshed with the first driving gear 337 at the front end of the thigh support plate 331. According to the gear meshing principle, when the thigh support plate 331 swings, i.e., when the hip joint moves, the rotation of the first driving gear 337 will force the second meshing gear 342 to rotate in the opposite direction, thereby driving the calf support plate 341 to perform flexion and extension movements relative to the thigh support plate 331, realizing the linkage of the knee joint. Meanwhile, a third connecting cylinder 344 is provided below the calf support plate 341. Its telescopic end is hinged to the bottom front end of the calf support plate 341 through the third end hinge block 345, and the cylinder body end is hinged to the lower end of the third hinge plate 347 through the third bottom hinge block 346. This cylinder can provide auxiliary power or damping for knee joint movement, or be used to independently adjust the calf angle.

[0038] A second drive gear 348 is fixedly sleeved on the front end shaft of the lower leg support plate 341.

[0039] A second drive gear 348 is also fixedly mounted on the front pivot of the calf support plate 341. This gear transmits the movement of the calf and knee joint to the foot. When the calf support plate 341 rotates relative to the thigh support plate 331, its front pivot inevitably rotates, causing the second drive gear 348 fixed thereon to rotate synchronously. This second drive gear 348 becomes the power source for driving the foot support assembly 35, realizing continuous transmission from the thigh to the calf, and then from the calf to the foot, making the entire lower limb's kinetic chain more complete and coordinated.

[0040] The foot support assembly 35 includes a foot connecting rod 351 and a foot support plate 353; One end of the foot connecting rod 351 is hinged to the front end of the lower leg support plate 341. A second meshing gear 352 is fixedly sleeved on the rotating shaft of the foot connecting rod 351. The second meshing gear 352 meshes with the second driving gear 348 for transmission. The other end of the foot connecting rod 351 is fixedly connected to a foot support plate 353 for placing the patient's foot, and the foot support plate 353 is provided with a foot fixing strap 354.

[0041] The foot support assembly 35 includes a foot connecting rod 351 and a foot support plate 353. One end of the foot connecting rod 351 is hinged to the front end of the calf support plate 341, forming a fulcrum for ankle joint rotation. A second meshing gear 352 is fixedly sleeved on the pivot of the foot connecting rod 351, and this gear meshes with a second driving gear 348 at the front end of the calf support plate 341. Therefore, when the calf support plate 341 moves, driving the second driving gear 348 to rotate, the meshing second meshing gear 352 will rotate in the opposite direction, thereby driving the foot connecting rod 351 to swing relative to the calf support plate 341 around its hinge point, realizing dorsiflexion and plantarflexion movements of the ankle joint. The other end of the foot connecting rod 351 is fixedly connected to a foot support plate 353 for placing the patient's foot. The foot support plate 353 is provided with a foot fixing strap 354 for reliably fixing the patient's foot. Through this series of gear meshing, the coordinated movement of the hip, knee, and ankle joints is achieved, simulating the natural state of human walking or riding.

[0042] Working Principle: During rehabilitation training, the patient first sits on the groin cushion 16 at the top of the height adjustment component 1, providing stable support for the buttocks. Based on the patient's height and comfort needs, cylinder 13 is activated, its telescopic end driving the top plate 14 to rise or fall, thereby adjusting the height of the groin cushion 16 via the connecting column 15. Multiple rectangularly distributed cylinders 13, positioned between the base 11 and the top plate 14, are hinged via damping connector 12, forming a stable parallel support structure to ensure smooth and wobbly lifting. Next, the first telescopic cylinder 22 is activated, its telescopic rod pushing the backrest cushion 21 to rotate around the damping connector 12 via the first hinge block 23, steplessly adjusting and locking the tilt angle of the backrest component 2 according to the patient's desired comfort angle.

[0043] Based on the patient's pelvic width, the lead screw motor 311 is activated, and its output end drives the bidirectional lead screw 313 to rotate via the transmission shaft 312. This causes the two limiting sliders 314 to slide towards or away from each other on the bidirectional lead screw 313, moving the support plate 32 fixed thereon. This precisely adjusts the distance between the two sets of lower limb support mechanisms, ensuring that the thigh support assembly 33 is accurately aligned with the patient's hip joint. The patient's thigh, calf, and foot are then placed on the thigh support plate 331, calf support plate 341, and foot support plate 353, respectively, and reliably secured by the thigh fixation strap 332, calf fixation strap 343, and foot fixation strap 354.

[0044] After training begins, the first connecting cylinder 322 is controlled to extend and retract. One end of the cylinder is hinged to the first hinge plate 321 of the support plate 32, and the other end is hinged to the middle of the thigh support assembly 33 via the first end hinge block 323. This drives the thigh support plate 331 to swing up and down around the hinge point between its rear end and the second hinge plate 336, simulating hip flexion and extension movements. A first drive gear 337 is fixedly sleeved on the front rotating shaft of the thigh support plate 331. When the thigh support plate 331 swings, the first drive gear 337 rotates accordingly, driving the second meshing gear 342 meshing with it to rotate in the opposite direction. The second meshing gear 342 is fixed on the side rotating shaft of the calf support plate 341, thus causing the calf support plate 341 to flex and extend relative to the thigh support plate 331 around the hinge point between its rear end and the third hinge plate 347, realizing the linkage of the knee joint. At the same time, a third connecting cylinder 344 is provided below the calf support plate 341, which can provide auxiliary power or damping for knee joint movement. A second drive gear 348 is fixedly sleeved on the front pivot of the calf support plate 341. When the calf support plate 341 moves, the second drive gear 348 rotates accordingly, driving the second meshing gear 352 meshing with it to rotate in the opposite direction. The second meshing gear 352 is fixed on the pivot of the foot connecting rod 351, thus causing the foot connecting rod 351 to swing around its hinge point with the front of the calf support plate 341, thereby causing the foot support plate 353 to perform dorsiflexion and plantarflexion relative to the calf support plate 341, simulating ankle joint movement. The second connecting cylinder 333 located below the thigh support plate 331 can assist in lifting the thigh or provide damping force, working in conjunction with the first connecting cylinder 322 to achieve angle control of hip joint movement and strength training.

[0045] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rehabilitation training device for orthopedic trauma, characterized in that, include: Height adjustment component (1), the top of which is provided with a thigh cushion (16) for supporting the patient's buttocks. Backrest assembly (2), which is rotatably connected to the rear end of the height adjustment assembly (1) via a damping connector (12) for adjusting the tilt angle of the patient's back; and a recovery training component (3), which is mounted on the front end of the height adjustment component (1); The recovery training component (3) includes a spacing adjustment component (31) arranged in the horizontal direction, and two sets of support mechanisms for rehabilitation training of the patient's lower limbs are symmetrically arranged on the spacing adjustment component (31). The support mechanism comprises, from bottom to top, a support plate (32) connected to the spacing adjustment component (31), a thigh support component (33) hinged to the support plate (32), a calf support component (34) hinged to the front end of the thigh support component (33), and a foot support component (35) hinged to the front end of the calf support component (34).

2. The orthopedic trauma rehabilitation training device according to claim 1, characterized in that: The height adjustment assembly (1) includes a base (11), and a cylinder (13) is connected above the base (11) via at least one damping connector (12). The telescopic end of the cylinder (13) is fixedly connected to a top plate (14), and the upper surface of the top plate (14) is fixedly supported by the thigh cushion (16) via a connecting column (15).

3. The orthopedic trauma rehabilitation training device according to claim 2, characterized in that: Multiple cylinders (13) arranged in a rectangular pattern are provided between the base (11) and the top plate (14), and the upper and lower ends of each cylinder (13) are respectively hinged to the base (11) and the top plate (14) through damping connectors (12).

4. The orthopedic trauma rehabilitation training device according to claim 1, characterized in that: The backrest assembly (2) includes a backrest cushion (21) and a first telescopic cylinder (22). The back of the backrest cushion (21) is hinged to the telescopic end of the first telescopic cylinder (22) via a first hinge block (23). The cylinder end of the first telescopic cylinder (22) is hinged to the side wall of the height adjustment assembly (1) via a second hinge block (24).

5. The orthopedic trauma rehabilitation training device according to claim 1, characterized in that: The spacing adjustment assembly (31) includes a lead screw motor (311) fixedly installed at the front end of the height adjustment assembly (1). The output end of the lead screw motor (311) is connected to a transmission shaft (312). The transmission shaft (312) drives a bidirectional lead screw (313). Two limit sliders (314) that slide in opposite directions or in opposite directions are threaded onto the bidirectional lead screw (313). The support plate (32) is fixedly installed on the limit sliders (314) one by one.

6. The orthopedic trauma rehabilitation training device according to claim 1, characterized in that: The upper end of the support plate (32) is fixedly provided with a first hinge plate (321), and the cylinder end of the first connecting cylinder (322) is hinged on the first hinge plate (321); the telescopic end of the first connecting cylinder (322) is hinged to the middle of the thigh support assembly (33) through the first end hinge block (323), and the cylinder end of the first connecting cylinder (322) is hinged to the first hinge plate (321) through the first bottom hinge block (324).

7. A rehabilitation training device for orthopedic trauma according to claim 1 or 6, characterized in that: The thigh support assembly (33) includes a thigh support plate (331) and a second hinge plate (336) fixed on the support plate (32). The rear end of the thigh support plate (331) is hinged to the upper end of the second hinge plate (336), and the upper surface of the thigh support plate (331) is provided with a thigh fixing strap (332) for fixing the thigh. A second connecting cylinder (333) is provided below the thigh support plate (331). The telescopic end of the second connecting cylinder (333) is hinged to the bottom front end of the thigh support plate (331) through the second end hinge block (334). The cylinder body end of the second connecting cylinder (333) is hinged to the lower end of the second hinge plate (336) through the second bottom hinge block (335). The first drive gear (337) is fixedly sleeved on the front end shaft of the thigh support plate (331).

8. The orthopedic trauma rehabilitation training device according to claim 7, characterized in that: The lower leg support assembly (34) includes a lower leg support plate (341) and a third hinge plate (347) fixed to the front end of the thigh support plate (331). The rear end of the lower leg support plate (341) is hinged to the third hinge plate (347), and the upper surface of the lower leg support plate (341) is provided with a lower leg fixing strap (343). A second meshing gear (342) is fixedly sleeved on the side rotating shaft of the lower leg support plate (341), and the second meshing gear (342) meshes with the first driving gear (337) for transmission. A third connecting cylinder (344) is provided below the lower leg support plate (341). The telescopic end of the third connecting cylinder (344) is hinged to the bottom front end of the lower leg support plate (341) through a third end hinge block (345). The cylinder body end of the third connecting cylinder (344) is hinged to the lower end of the third hinge plate (347) through a third bottom hinge block (346).

9. A rehabilitation training device for orthopedic trauma according to claim 8, characterized in that: The second drive gear (348) is fixedly sleeved on the front end shaft of the lower leg support plate (341).

10. A rehabilitation training device for orthopedic trauma according to claim 9, characterized in that: The foot support assembly (35) includes a foot connecting rod (351) and a foot support plate (353). One end of the foot connecting rod (351) is hinged to the front end of the calf support plate (341). A second meshing gear (352) is fixedly sleeved on the rotating shaft of the foot connecting rod (351). The second meshing gear (352) meshes and drives the second driving gear (348). The other end of the foot connecting rod (351) is fixedly connected to a foot support plate (353) for placing the patient's foot, and the foot support plate (353) is provided with a foot fixing strap (354).

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