Multifunctional training device for sports injury rehabilitation

Abstract

The invention belongs to the technical field of sports injury, and discloses a multifunctional training device for sports injury rehabilitation, which comprises a bottom plate, a clamping lock structure is arranged at the top of the bottom plate, a lifting structure is arranged at the top of the bottom plate and above the clamping lock structure, and a rehabilitation device is arranged at the top of the bottom plate and on one side of the clamping lock structure. When the pedal block is pressed down, quadriceps femoris muscles on the front sides of the thighs contract to generate force, and gastrocnemius muscles, soleus muscles and the like on the rear sides of the shanks also participate in cooperation; when the pedal block is lifted up, muscles such as popliteal muscles on the rear side of the thigh play a main role. Through repeated muscle contraction and relaxation, leg muscles can be effectively stimulated, muscle strength can be enhanced, muscle atrophy caused by sports injury can be prevented, recovery of muscle strength after injury can be promoted, and actual application and operation are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of sports injuries, and in particular to a multifunctional training device for sports injury rehabilitation. Background Art

[0002] In the medical technical field of sports injuries, X-rays can clearly show the structure of bones and are used to judge whether there are injuries such as fractures; CT scans can provide more detailed tomographic images of bones and surrounding tissues, for example, they can detect subtle bone fractures.

[0003] However, in the actual application process of existing equipment, after sports injuries, local blood supply is crucial for tissue repair. The lack of active limb movement to improve blood circulation will lead to untimely supply of nutrients to the injured area and slow excretion of metabolic wastes, thus affecting tissue repair and regeneration and being unfavorable for actual application and operation. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a multifunctional training device for sports injury rehabilitation.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a multifunctional training device for sports injury rehabilitation, including a bottom plate: a locking structure is provided on the top of the bottom plate, a lifting structure is provided above the locking structure on the top of the bottom plate, and a rehabilitation device is provided on one side of the locking structure on the top of the bottom plate;

[0006] The locking structure includes a card slot, a base, a first sliding groove, a second sliding groove, a third sliding groove, a connecting rod, a clamping block, a spring and a connecting plate, the lifting structure includes a U-shaped seat, a bidirectional screw, a threaded block, a connecting rod, a seat, a first rotating shaft, a first cone wheel, a second cone wheel, a third cone wheel, a fourth cone wheel, a rotating rod, a fixing plate and a turntable, and the rehabilitation device includes a first U-shaped block, a second rotating shaft, a second U-shaped block, a threaded rod, a threaded block, a foot pedal block, a first gear and a second gear;

[0007] A first U-shaped block is fixedly connected to the top of the bottom plate, a second rotating shaft is rotatably connected inside the first U-shaped block, both ends of the second rotating shaft extend to the outside of the first U-shaped block and are fixedly connected with second U-shaped blocks, threaded rods are rotatably connected inside the second U-shaped blocks, threaded blocks are threadedly connected to the outside of the threaded rods, and foot pedal blocks are rotatably connected to one side of the threaded blocks.

[0008] Preferably, the top of the base plate is equidistantly provided with clamping grooves, and a base is slidably connected to the top of the base plate and located above the clamping grooves. A third sliding groove is opened at the bottom of the base, and a clamping block is slidably connected inside the third sliding groove. The clamping block is used in cooperation with the clamping groove. A second sliding groove is opened inside the base and above the third sliding groove, and a connecting rod is slidably connected inside the second sliding groove. The bottom of the connecting rod extends into the third sliding groove and is fixedly connected to the clamping block.

[0009] Preferably, first sliding grooves are opened on both sides of the base and outside the second sliding groove. A connecting plate is slidably connected inside the first sliding groove. The bottom of the connecting plate is fixedly connected to the top of the connecting rod. A spring is fixedly connected between the connecting plate and the second sliding groove and outside the connecting rod.

[0010] Preferably, two U-shaped seats are fixedly connected to the top of the base. A bidirectional screw is rotatably connected inside each U-shaped seat. Two threaded blocks are threadedly connected to the outside of each bidirectional screw. A connecting rod is rotatably connected to the top of each threaded block. A seat is rotatably connected between the tops of the four connecting rods.

[0011] Preferably, a first rotating shaft is rotatably connected between the U-shaped seats. Both ends of the first rotating shaft extend into the U-shaped seats and are fixedly connected with second bevel gears. First bevel gears are fixedly connected to the outside of the bidirectional screws. The first bevel gears are meshed with the second bevel gears.

[0012] Preferably, a third bevel gear is fixedly connected to the outside of the first rotating shaft. A fixed plate is fixedly connected between the two U-shaped seats. A rotating rod is rotatably connected to one side of the fixed plate. The end of the rotating rod away from the fixed plate is fixedly connected with a fourth bevel gear. The fourth bevel gear is meshed with the third bevel gear. One end of the rotating rod penetrates through the fixed plate and is fixedly connected with a turntable.

[0013] Preferably, two fixing blocks are fixedly connected to both sides of the base plate and located on both sides of the clamping groove. A sliding rod is fixedly connected between the corresponding two fixing blocks. A slider is slidably connected to the outside of each sliding rod. The sliders are all fixedly connected to the base. A first gear is fixedly connected to the outside of the second rotating shaft. A second gear is rotatably connected inside the first U-shaped block and below the first gear. The diameter of the first gear is smaller than that of the second gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] (1) Through the structural design of the first U-shaped block, the second rotating shaft, and the second U-shaped block fixedly connected to the bottom plate of the present invention, the threaded rod can rotate within the second U-shaped block. When the user steps on the foot pedal, due to the threaded connection between the threaded block and the threaded rod, the threaded block will move relatively on the threaded rod. This relative movement will drive the foot pedal to generate a specific movement trajectory, thereby prompting the flexion and extension activities of the lower limb joints such as the ankle joint and the knee joint. During the downward pressure of the foot pedal, the knee joint changes from extension to flexion, and the ankle joint also undergoes corresponding dorsiflexion and plantar flexion changes, simulating the activity mode of the lower limb joints during normal human walking or movement, avoiding problems such as joint stiffness and limited range of motion caused by long-term immobilization after joint injury. During the process of stepping on the foot pedal, the user needs to overcome the resistance of the foot pedal to exercise. The rotational connection between the foot pedal and the threaded block and the threaded connection between the threaded block and the threaded rod enable the leg muscles to continuously exert force to control the movement of the foot pedal when the user steps on and off the foot pedal. When pressing down the foot pedal, the quadriceps femoris on the front side of the thigh contracts and exerts force, and the gastrocnemius and soleus muscles on the back side of the calf also participate synergistically; when lifting the foot pedal, the hamstring muscles on the back side of the thigh play a major role. Through this repeated muscle contraction and relaxation, it can effectively stimulate the leg muscles, enhance muscle strength, prevent muscle atrophy caused by sports injuries, and promote the recovery of muscle strength after injury.

[0016] (2) The equally spaced card slots opened at the top of the bottom plate of the present invention provide the basic structure for the positioning of the base. The clamping block is slidably connected within the third sliding groove at the bottom of the base, and the clamping block can move freely within the third sliding groove. When it is necessary to fix the base at a specific position on the bottom plate, by adjusting the position of the clamping block within the third sliding groove, it is aligned with the corresponding card slot and snapped in. The connecting rod located within the second sliding groove is fixedly connected to the clamping block. By sliding the connecting rod within the second sliding groove, the position movement of the clamping block can be indirectly controlled, thereby realizing the quick clamping and separation operations between the base and the bottom plate. This design enables the position of the base on the bottom plate to be flexibly adjusted and fixed, meeting the needs of different users or the requirements of different rehabilitation training scenarios. The connecting plate slidably connected within the first sliding groove is fixedly connected to the top of the connecting rod, and the connecting rod passes through the second sliding groove and is connected to the clamping block. The spring is located between the connecting plate and the second sliding groove and is sleeved outside the connecting rod. When the connecting plate is pulled upward, the clamping block is driven upward by the connecting rod to disengage from the card slot, and at this time the spring is stretched. After releasing the connecting plate, the elastic restoring force of the spring will cause the connecting plate, the connecting rod, and the clamping block to return to the initial position. This elastic potential energy storage and release mechanism of the spring realizes the automatic control of the clamping and disengagement of the clamping block within the card slot, and ensures the stability of the clamping state by means of the acting force of the spring, that is, under normal circumstances, the clamping block remains tightly clamped with the card slot under the elastic force of the spring to prevent the base from shifting accidentally.

[0017] (3) The present invention provides a rotational support point for the bidirectional screw through two U-shaped seats at the top of the base. The two threaded blocks symmetrically thread-connected to the bidirectional screw will move in opposite directions when the screw rotates. The tops of the threaded blocks are rotatably connected to the connecting rods, and the four connecting rods jointly support and connect the seat. When the bidirectional screw is rotated, the two sets of opposite threaded blocks will approach or move away from each other. Through the linkage of the connecting rods, the height of the seat is changed. The rotational motion of the bidirectional screw is converted into the height change of the seat. The two ends of the first rotating shaft rotatably connected between the U-shaped seats are fixed with second bevel gears, which are engaged with the first bevel gears fixed on the outside of the bidirectional screw. In this way, when the first rotating shaft rotates, the bidirectional screw can be driven to rotate by means of the meshing transmission of the bevel gears, so as to realize the related actions of adjusting the height and angle of the seat.

[0018] (4) The present invention also fixes a third bevel gear on the outside of the first rotating shaft, which is engaged with the fourth bevel gear fixed at one end of the rotating rod, and the rotating rod is rotatably supported through the fixing plate. This meshing relationship of multiple-stage bevel gears further expands the transmission path, enabling the first rotating shaft to be indirectly driven to rotate by rotating the turntable at one end of the rotating rod, and further realizing the control of the height and angle of the seat. When the height and angle of the seat need to be adjusted, the user can manually rotate the turntable. Rotating the turntable will drive the rotating rod to rotate. Since the fourth bevel gear on the rotating rod is engaged with the third bevel gear on the first rotating shaft, the first rotating shaft will be driven to rotate. The rotation of the first rotating shaft drives the bidirectional screw to rotate through the meshing relationship between the second bevel gears at both ends and the first bevel gears on the bidirectional screw, finally realizing the adjustment of the height and angle of the seat. The user can easily and conveniently perform precise adjustment of the seat through the turntable on one side of the device, without directly operating at complex positions such as under the seat, improving the convenience and operability of the adjustment. At the same time, during the movement of the base, the base can move on the surface of the sliding rod through the slider, and the base can be limited. At the same time, since the diameter of the first gear is smaller than that of the second gear, some resistance will occur during the rotation of the second rotating shaft, which can accelerate the rehabilitation of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 is a schematic top view structure diagram of the present invention from the first perspective.

[0021] Figure 3 is a schematic top view structure diagram of the present invention from the second perspective.

[0022] Figure 4 is a schematic sectional structure diagram of the present invention.

[0023] Figure 5 is a schematic side view structure diagram of the present invention.

[0024] In the figure: 1, bottom plate; 2, card slot; 3, fixing block; 4, slide bar; 5, slider; 6, base; 7, first chute; 8, second chute; 9, third chute; 10, connecting rod; 11, clamping block; 12, spring; 13, connecting plate; 14, U-shaped seat; 15, bidirectional screw; 16, first cone pulley; 17, first rotating shaft; 18, second cone pulley; 19, third cone pulley; 20, fourth cone pulley; 21, rotating rod; 22, fixing plate; 23, turntable; 24, threaded block; 25, connecting rod; 26, seat; 27, first U-shaped block; 28, second rotating shaft; 29, second U-shaped block; 30, threaded rod; 31, screw block; 32, footrest block; 33, first gear; 34, second gear. Specific embodiments

[0025] Next, in combination with specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0026] In the description of the present invention, it should be noted that for orientation terms, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0028] One preferred embodiment of the present invention is as Figures 1 to 5 shown, a multifunctional training device for sports injury rehabilitation, including a bottom plate 1: a locking structure is provided on the top of the bottom plate 1, a lifting structure is provided above the locking structure on the top of the bottom plate 1, and a rehabilitation device is provided on one side of the locking structure on the top of the bottom plate 1;

[0029] The locking structure includes a card slot 2, a base 6, a first chute 7, a second chute 8, a third chute 9, a connecting rod 10, a clamping block 11, a spring 12 and a connecting plate 13. The lifting structure includes a U-shaped seat 14, a bidirectional screw 15, a threaded block 24, a connecting rod 25, a seat 26, a first rotating shaft 17, a first cone pulley 16, a second cone pulley 18, a third cone pulley 19, a fourth cone pulley 20, a rotating rod 21, a fixing plate 22 and a turntable 23. The rehabilitation device includes a first U-shaped block 27, a second rotating shaft 28, a second U-shaped block 29, a threaded rod 30, a threaded block 31, a foot pedal 32, a first gear 33 and a second gear 34;

[0030] A first U-shaped block 27 is fixedly connected to the top of the bottom plate 1. A second rotating shaft 28 is rotatably connected inside the first U-shaped block 27. Both ends of the second rotating shaft 28 extend to the outside of the first U-shaped block 27 and are fixedly connected with second U-shaped blocks 29. Threaded rods 30 are rotatably connected inside the second U-shaped blocks 29. Threaded blocks 31 are threadedly connected to the outer sides of the threaded rods 30. One side of each threaded block 31 is rotatably connected with a foot pedal 32. Through the structural design of the first U-shaped block 27, the second rotating shaft 28 and the second U-shaped blocks 29 fixedly connected to the bottom plate 1, the threaded rods 30 can rotate inside the second U-shaped blocks 29. When the user steps on the foot pedal 32, due to the threaded connection between the threaded block 31 and the threaded rod 30, the threaded block 31 will move relatively on the threaded rod 30. This relative movement will drive the foot pedal 32 to generate a specific movement trajectory, thereby promoting the flexion and extension of lower limb joints such as the ankle joint and the knee joint. During the downward pressing process of the foot pedal 32, the knee joint changes from extension to flexion, and the ankle joint also undergoes corresponding dorsiflexion and plantar flexion changes, simulating the activity mode of the lower limb joints during normal human walking or movement, and avoiding problems such as joint stiffness and limited range of motion caused by long-term immobilization after joint injury. During the process of stepping on the foot pedal, the user needs to overcome the resistance of the foot pedal 32 to move. The rotational connection between the foot pedal 32 and the threaded block 31 and the threaded connection between the threaded block 31 and the threaded rod 30 enable the leg muscles to continuously exert force to control the movement of the foot pedal 32 when the user steps on and off the foot pedal 32. When pressing down the foot pedal 32, the quadriceps femoris on the front side of the thigh contracts and exerts force, and the gastrocnemius and soleus muscles on the back side of the calf also participate synergistically; when lifting the foot pedal 32, the hamstring muscles on the back side of the thigh play a major role. Through this repeated muscle contraction and relaxation, it can effectively stimulate the leg muscles, enhance muscle strength, prevent muscle atrophy caused by sports injuries, and promote the recovery of muscle strength after injury.

[0031] The top of the bottom plate 1 is provided with slots 2 at equal intervals, and a base 6 is slidably connected to the top of the bottom plate 1 and located at the top of the slots 2. A third slot 9 is provided at the bottom of the base 6, and a clamping block 11 is slidably connected inside the third slot 9. The clamping block 11 is used in conjunction with the slot 2. A second slot 8 is provided inside the base 6 and located above the third slot 9. A connecting rod 10 is slidably connected inside the second slot 8. The bottom of the connecting rod 10 extends to the inside of the third slot 9 and is fixedly connected to the clamping block 11. The slots 2 provided at equal intervals on the top of the bottom plate 1 provide a basic structure for positioning the base 6. The clamping block 11 is slidably connected inside the third slot 9 at the bottom of the base 6, and the clamping block 11 can move freely in the third slot 9. When the base 6 needs to be fixed at a specific position on the bottom plate 1, the position of the clamping block 11 in the third slot 9 is adjusted so that it is aligned with the corresponding slot 2 and clamped in. The connecting rod 10 in the second slide groove 8 is fixedly connected to the clamping block 11. By sliding the connecting rod 10 in the second slide groove 8, the position of the clamping block 11 can be indirectly controlled to move, thereby realizing the quick clamping and separation operation of the base 6 and the bottom plate 1. This design allows the position of the base 6 on the bottom plate 1 to be flexibly adjusted and fixed to meet the needs of different users or the requirements of different rehabilitation training scenarios.

[0032] The first slide groove 7 is provided on both sides of the base 6 and outside the second slide groove 8. A connecting plate 13 is slidably connected inside the first slide groove 7. The bottom of the connecting plate 13 is fixedly connected to the top of the connecting rod 10. A spring 12 is fixedly connected between the connecting plate 13 and the second slide groove 8 and outside the connecting rod 10. The connecting plate 13 slidably connected in the first slide groove 7 is fixedly connected to the top of the connecting rod 10, and the connecting rod 10 passes through the second slide groove 8 and is connected to the clamping block 11. The spring 12 is located between the connecting plate 13 and the second slide groove 8 and is sleeved on the outside of the connecting rod 10. When the connecting plate 13 is pulled upward, the clamping block 11 is driven by the connecting rod 10 to move upward and disengage from the clamping groove 2, and the spring 12 is stretched at this time. After the connecting plate 13 is released, the elastic restoring force of the spring 12 will restore the connecting plate 13, the connecting rod 10 and the clamping block 11 to their initial positions. The elastic potential energy storage and release mechanism of the spring 12 realizes the automatic control of the engagement and disengagement of the snap-in block 11 in the slot 2, and ensures the stability of the engagement state with the help of the force of the spring 12, that is, under normal circumstances, the snap-in block 11 maintains a tight engagement with the slot 2 under the elastic force of the spring 12, preventing the base 6 from accidentally shifting.

[0033] Two U-shaped seats 14 are fixedly connected to the top of the base 6. A bidirectional screw 15 is rotatably connected inside each of the U-shaped seats 14. Two threaded blocks 24 are threadedly connected to the outer sides of the bidirectional screws 15. Connecting rods 25 are rotatably connected to the tops of the threaded blocks 24. A seat 26 is rotatably connected between the tops of the four connecting rods 25. The two U-shaped seats 14 on the top of the base 6 provide a rotational support point for the bidirectional screw 15. The two threaded blocks 24 symmetrically threadedly connected to the bidirectional screw 15 will move in opposite directions when the screw rotates. The tops of the threaded blocks 24 are rotatably connected to the connecting rods 25, and the four connecting rods 25 jointly support and connect the seat 26. When the bidirectional screw 15 is rotated, the two sets of opposite threaded blocks 24 will approach or move away from each other, and through the linkage of the connecting rods 25, the height of the seat 26 is changed.

[0034] A first rotating shaft 17 is rotatably connected between the U-shaped seats 14. Both ends of the first rotating shaft 17 extend into the U-shaped seats 14 and are fixedly connected with second bevel gears 18. First bevel gears 16 are fixedly connected to the outer sides of the bidirectional screws 15. The first bevel gears 16 are meshed with the second bevel gears 18. The rotational movement of the bidirectional screw 15 is converted into the height change of the seat 26. Second bevel gears 18 are fixed at both ends of the first rotating shaft 17 rotatably connected between the U-shaped seats 14, and they are meshed with the first bevel gears 16 fixed to the outer sides of the bidirectional screws 15. In this way, when the first rotating shaft 17 rotates, the bidirectional screw 15 can be driven to rotate by means of the meshing transmission of the bevel gears, so as to realize the related actions of adjusting the height and angle of the seat 26.

[0035] A third cone pulley 19 is fixedly connected to the outer side of the first rotating shaft 17. A fixed plate 22 is fixedly connected between two U-shaped seats 14. One side of the fixed plate 22 is rotatably connected to a rotating rod 21. The end of the rotating rod 21 away from the fixed plate 22 is fixedly connected to a fourth cone pulley 20. The fourth cone pulley 20 is meshed and connected with the third cone pulley 19. One end of the rotating rod 21 penetrates through the fixed plate 22 and is fixedly connected to a turntable 23. Since a third cone pulley 19 is also fixed to the outer side of the first rotating shaft 17, it is meshed with the fourth cone pulley 20 fixed to one end of the rotating rod 21, and the rotating rod 21 is rotationally supported by the fixed plate 22. This meshing relationship of the multi-stage cone pulleys further expands the transmission path, enabling the first rotating shaft 17 to be indirectly driven to rotate by rotating the turntable 23 at one end of the rotating rod 21, thereby realizing the control of the height and angle of the seat 26. When it is necessary to adjust the height and angle of the seat 26, the user can manually rotate the turntable 23. Rotating the turntable 23 will drive the rotating rod 21 to rotate. Since the fourth cone pulley 20 on the rotating rod 21 is meshed with the third cone pulley 19 on the first rotating shaft 17, the first rotating shaft 17 will be driven to rotate. The rotation of the first rotating shaft 17, through the meshing relationship between the second cone pulleys 18 at both ends thereof and the first cone pulley 16 on the bidirectional screw 15, drives the bidirectional screw 15 to rotate, finally realizing the adjustment of the height and angle of the seat 26. The user can easily and conveniently perform precise adjustment of the seat 26 through the turntable 23 on one side of the device, without directly operating at complex positions such as under the seat 26, improving the convenience and operability of the adjustment.

[0036] Two fixing blocks 3 are fixedly connected to the top of the bottom plate 1 and on both sides of the card slot 2. A sliding rod 4 is fixedly connected between the corresponding two fixing blocks 3. Sliders 5 are slidably connected to the outer sides of the sliding rods 4. The sliders 5 are fixedly connected to the base 6. A first gear 33 is fixedly connected to the outer side of the second rotating shaft 28. A second gear 34 is rotatably connected inside the first U-shaped block 27 and below the first gear 33. The diameter of the first gear 33 is smaller than that of the second gear 34. During the movement of the base 6, the base 6 can move on the surface of the sliding rod 4 through the slider 5, which can limit the movement of the base 6. At the same time, since the diameter of the first gear 33 is smaller than that of the second gear 34, some resistance will occur during the rotation of the second rotating shaft 28, thereby accelerating the recovery of the patient.

[0037] Working principle:

[0038] During use, due to the structural design of the first U-shaped block 27, the second rotating shaft 28 and the second U-shaped block 29 fixedly connected to the bottom plate 1, the threaded rod 30 can rotate within the second U-shaped block 29. When the user steps on the foot pedal 32, due to the threaded connection between the threaded block 31 and the threaded rod 30, the threaded block 31 will move relatively on the threaded rod 30. This relative movement will drive the foot pedal 32 to generate a specific movement trajectory, thereby prompting the flexion and extension activities of the lower limb joints such as the ankle joint and the knee joint. During the downward pressing process of the foot pedal 32, the knee joint changes from extension to flexion, and the ankle joint also undergoes corresponding dorsiflexion and plantar flexion changes, simulating the activity mode of the lower limb joints during normal human walking or exercise, and avoiding problems such as joint stiffness and limited range of motion caused by long-term immobilization after joint injury. During the process of stepping on the foot pedal, the user needs to overcome the resistance of the foot pedal 32 to exercise. The rotational connection between the foot pedal 32 and the threaded block 31 and the threaded connection between the threaded block 31 and the threaded rod 30 enable the leg muscles of the user to continuously exert force to control the movement of the foot pedal 32 when stepping on the foot pedal up and down. When pressing down the foot pedal 32, the quadriceps femoris on the front side of the thigh contracts and exerts force, and the gastrocnemius and soleus muscles on the back side of the calf also participate synergistically; when lifting the foot pedal 32, the hamstring muscles on the back side of the thigh play a major role. Through this repeated muscle contraction and relaxation, it can effectively stimulate the leg muscles, enhance muscle strength, prevent muscle atrophy caused by sports injuries, and promote the recovery of muscle strength after injury;

[0039] The slots 2 equidistantly provided at the top of the bottom plate 1 provide a basic structure for positioning the base 6. The third chute 9 at the bottom of the base 6 is slidably connected to the clamping block 11, and the clamping block 11 can move freely in the third chute 9. When the base 6 needs to be fixed at a specific position on the bottom plate 1, the position of the clamping block 11 in the third chute 9 is adjusted to align it with the corresponding slot 2 and snap it in. The connecting rod 10 located in the second chute 8 is fixedly connected to the clamping block 11. By sliding the connecting rod 10 in the second chute 8, the position movement of the clamping block 11 can be indirectly controlled, thereby realizing the rapid clamping and separation operation of the base 6 and the bottom plate 1. This design allows the position of the base 6 on the bottom plate 1 to be flexibly adjusted and fixed, meeting the needs of different users or the requirements of different rehabilitation training scenarios. The connecting plate 13 slidably connected in the first chute 7 is fixedly connected to the top of the connecting rod 10, and the connecting rod 10 passes through the second chute 8 and is connected to the clamping block 11. The spring 12 is located between the connecting plate 13 and the second chute 8 and is sleeved on the outside of the connecting rod 10. When the connecting plate 13 is pulled upward, the connecting rod 10 drives the clamping block 11 to move upward and disengage from the slot 2, and the spring 12 is stretched. After the connecting plate 13 is released, the elastic restoring force of the spring 12 will restore the connecting plate 13, the connecting rod 10 and the clamping block 11 to their initial positions. The elastic potential energy storage and release mechanism of the spring 12 realizes the automatic control of the clamping and disengaging of the clamping block 11 in the slot 2, and ensures the stability of the clamping state with the help of the force of the spring 12, that is, under normal circumstances, the clamping block 11 maintains a tight clamping connection with the slot 2 under the elastic force of the spring 12 to prevent the base 6 from accidentally shifting; the two U-shaped seats 14 at the top of the base 6 provide a rotation support point for the bidirectional screw 15. The two threaded blocks 24 symmetrically threaded on the bidirectional screw 15 will move in opposite directions when the screw rotates. The top of the threaded block 24 is rotatably connected to the connecting rod 25, and the four connecting rods 25 jointly support and connect the seat 26. When the bidirectional screw 15 is rotated, the two sets of opposite threaded blocks 24 will move closer to or farther from each other, and the height of the seat 26 will be changed through the linkage of the connecting rod 25. The rotational movement of the bidirectional screw 15 is converted into the height change of the seat 26. The second cone wheel 18 is fixed at both ends of the first rotating shaft 17 that is rotatably connected between the U-shaped seats 14, and it is meshed with the first cone wheel 16 fixed on the outside of the bidirectional screw 15. In this way, when the first rotating shaft 17 rotates, the bidirectional screw 15 can be driven to rotate by the meshing transmission of the cone wheel, thereby realizing the related actions of adjusting the height and angle of the seat 26;

[0040] A third cone pulley 19 is also fixed to the outside of the first rotating shaft 17. It meshes with a fourth cone pulley 20 fixed to one end of the rotating rod 21, and the rotating rod 21 is rotationally supported by a fixing plate 22. This meshing relationship of multiple cone pulleys further expands the transmission path, enabling the first rotating shaft 17 to be indirectly driven to rotate by rotating a turntable 23 at one end of the rotating rod 21, thereby realizing the control of the height and angle of the seat 26. When it is necessary to adjust the height and angle of the seat 26, the user can manually rotate the turntable 23. Rotating the turntable 23 will drive the rotating rod 21 to rotate. Since the fourth cone pulley 20 on the rotating rod 21 meshes with the third cone pulley 19 on the first rotating shaft 17, the first rotating shaft 17 will be driven to rotate. The rotation of the first rotating shaft 17, through the meshing relationship between the second cone pulleys 18 at both ends thereof and the first cone pulley 16 on the bidirectional screw 15, drives the bidirectional screw 15 to rotate, finally realizing the adjustment of the height and angle of the seat 26. The user can easily and conveniently perform precise adjustment of the seat 26 through the turntable 23 on one side of the device, without directly operating at complex positions such as under the seat 26, improving the convenience and operability of the adjustment. At the same time, during the movement of the base 6, the slider 5 can move on the surface of the slide rod 4 to limit the movement of the base 6. Also, since the diameter of the first gear 33 is smaller than that of the second gear 34, some resistance will occur during the rotation of the second rotating shaft 28, which can accelerate the recovery of the patient. The above describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional training device for sports injury rehabilitation, characterized in that: It comprises a base plate (1): a locking structure is provided on the top of the base plate (1), a lifting structure is provided on the top of the base plate (1) and above the locking structure, and a rehabilitation device is provided on the top of the base plate (1) and on one side of the locking structure; The locking structure comprises a locking slot (2), a base (6), a first sliding slot (7), a second sliding slot (8), a third sliding slot (9), a connecting rod (10), a clamping block (11), a spring (12) and a connecting plate (13); the lifting structure comprises a U-shaped seat (14), a bidirectional screw rod (15), a threaded block (24), a connecting rod (25), a seat (26), a first rotating shaft (17), a first cone wheel (16), a second cone wheel (18), a third cone wheel (19), a fourth cone wheel (20), a rotating rod (21), a fixing plate (22) and a rotating disk (23); and the rehabilitation device comprises a first U-shaped block (27), a second rotating shaft (28), a second U-shaped block (29), a threaded rod (30), a screw block (31), a pedal block (32), a first gear (33) and a second gear (34); A first U-shaped block (27) is fixedly connected to the top of the bottom plate (1); a second rotating shaft (28) is rotatably connected inside the first U-shaped block (27); both ends of the second rotating shaft (28) extend to the outside of the first U-shaped block (27) and are fixedly connected to a second U-shaped block (29); a threaded rod (30) is rotatably connected inside the second U-shaped block (29); a screw block (31) is threadedly connected to the outside of the threaded rod (30); and a foot block (32) is rotatably connected to one side of the screw block (31).

2. A multifunctional training device for sports injury rehabilitation as claimed in claim 1, characterized in that: The top of the bottom plate (1) is provided with card slots (2) at equal intervals, the top of the bottom plate (1) is slidably connected to a base (6) at the top of the card slot (2), a third slide slot (9) is provided at the bottom of the base (6), a card block (11) is slidably connected inside the third slide slot (9), the card block (11) is used in conjunction with the card slot (2), a second slide slot (8) is provided inside the base (6) and located above the third slide slot (9), a connecting rod (10) is slidably connected inside the second slide slot (8), the bottom of the connecting rod (10) extends to the inside of the third slide slot (9) and is fixedly connected to the card block (11).

3. A multifunctional training device for sports injury rehabilitation as claimed in claim 1, characterized in that: A first slide groove (7) is provided on both sides of the base (6) and on the outer side of the second slide groove (8); a connecting plate (13) is slidably connected inside the first slide groove (7); the bottom of the connecting plate (13) is fixedly connected to the top of the connecting rod (10); a spring (12) is fixedly connected between the connecting plate (13) and the second slide groove (8) and on the outer side of the connecting rod (10).

4. A multifunctional training device for sports injury rehabilitation as claimed in claim 1, characterized in that: The top of the base (6) is fixedly connected to two U-shaped seats (14), the inside of the U-shaped seats (14) are rotatably connected to bidirectional screws (15), the outer sides of the bidirectional screws (15) are threadedly connected to two threaded blocks (24), the tops of the threaded blocks (24) are rotatably connected to connecting rods (25), and seats (26) are rotatably connected between the tops of the four connecting rods (25).

5. A multifunctional training device for sports injury rehabilitation as claimed in claim 1, characterized in that: A first rotating shaft (17) is rotatably connected between the U-shaped seats (14), both ends of the first rotating shaft (17) extend into the interior of the U-shaped seats (14) and are fixedly connected to a second cone wheel (18), and the outer sides of the bidirectional screws (15) are fixedly connected to the first cone wheels (16), and the first cone wheels (16) are meshingly connected to the second cone wheels (18).

6. A multifunctional training device for sports injury rehabilitation as claimed in claim 1, characterized in that: A third cone wheel (19) is fixedly connected to the outer side of the first rotating shaft (17); a fixing plate (22) is fixedly connected between the two U-shaped seats (14); a rotating rod (21) is rotatably connected to one side of the fixing plate (22); an end of the rotating rod (21) away from the fixing plate (22) is fixedly connected to a fourth cone wheel (20); the fourth cone wheel (20) is meshingly connected to the third cone wheel (19); one end of the rotating rod (21) passes through the fixing plate (22) and is fixedly connected to a rotating disk (23).

7. A multifunctional training device for sports injury rehabilitation as claimed in claim 1, characterized in that: Two fixed blocks (3) are fixedly connected to the top of the bottom plate (1) and located on both sides of the card slot (2); a sliding rod (4) is fixedly connected between the two corresponding fixed blocks (3); a sliding block (5) is slidably connected to the outer side of the sliding rod (4); the sliding block (5) is fixedly connected to the base (6); a first gear (33) is fixedly connected to the outer side of the second rotating shaft (28); a second gear (34) is rotatably connected to the inside of the first U-shaped block (27) and located below the first gear (33); the diameter of the first gear (33) is smaller than that of the second gear (34).

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