Lower limb exercise walking aid for medical rehabilitation

Abstract

The invention relates to the field of medical rehabilitation instruments, in particular to a lower limb exercise walking aid for medical rehabilitation, which comprises a supporting box, an inlet and outlet is formed in the middle box wall of the lower end of the supporting box in a penetrating manner, and first sliding grooves are symmetrically formed in the inner box walls of the two sides of the supporting box; a plurality of first inserting holes are formed in the bottoms of the first sliding grooves in a penetrating mode, through holes which are symmetrically formed are formed in the two sides of the upper end of the supporting box in a penetrating mode, and the positions of the seat plate and the U-shaped plate can be conveniently adjusted under the sliding limiting effect of the first sliding grooves and the sliding plates by arranging a driving motor and a bidirectional lead screw; therefore, a patient can sit on the seat plate to have a rest when tired by using the instrument, physical strength is recovered, continuous walking exercise is facilitated, the exercise efficiency is improved, a two-way motor and a rotating rod in a U-shaped plate drive moving wheels and self-locking universal wheels to drive the patient to linearly move in a short distance, the patient is helped to return conveniently, and the practicability is high. The multi-person nursing support is avoided, the use is convenient, and the safety is high.

Description

Technical Field

[0001] This invention relates to the field of medical rehabilitation equipment, specifically a lower limb exercise assistive device for medical rehabilitation. Background Technology

[0002] Clinically, functional impairment refers to the characteristic activities of tissues, organs, and limbs. For example, the hand's function is to use tools for labor, the lower limbs' function is to support the body and walk, the stomach's function is to digest food, and the brain's function is to think. Each function has its own characteristics. When a function that should be performed cannot be performed normally, it is called functional impairment. After treatment, in order to carry out medical rehabilitation, auxiliary training devices are often used to improve the recovery efficiency of patients.

[0003] Postoperative rehabilitation is necessary after lower limb surgery, and rehabilitation training is required. To enhance lower limb recovery, lower limb walking devices are often used in conjunction with these exercises. Patients use their upper limbs in conjunction with the devices to increase overall efficiency. Currently, lower limb exercise devices are typically used with the patient holding onto them for support. However, these devices are limited in function, only providing support for walking, and lack any assistive support. If the patient becomes exhausted, they cannot use the device to move back a short distance. Furthermore, the fixed height of current lower limb walking devices forces taller individuals to bend over, which is inconvenient and increases physical exertion. Additionally, current assistive exercise devices are not user-friendly, as they cannot be adjusted for different heights, increasing the intensity of use for those recovering from limb injuries and resulting in a generally poor user experience. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a lower limb exercise assistive device for medical rehabilitation.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a lower limb exercise assistive device for medical rehabilitation, comprising a support box, an inlet and outlet through the middle of the lower end of the support box wall, first sliding grooves symmetrically arranged on both sides of the inner box wall of the support box, a plurality of first insertion holes through the bottom of each of the first sliding grooves, through holes symmetrically arranged on both sides of the upper end of the support box, and a mounting hole with an internal bearing through the center of the upper end of the support box, a drive motor fixedly connected to the upper end of the support box, the drive motor fixedly connected to the top of the support box, and a bidirectional lead screw fixedly connected to the output end of the drive motor, the output end of the bidirectional lead screw being rotatably connected to the inside of the support box through the bearing inside the mounting hole, and the bidirectional lead screw passing through the mounting hole and extending into the inside of the support box, both ends of the bidirectional lead screw being threadedly connected to threaded sleeves, each threaded sleeve being fixedly connected to a mounting plate, and the mounting plates being fixed on opposite sides. A sliding plate is connected to several sliding plates, which are slidably connected to the inside of a first sliding groove on opposite sides. Each sliding plate has an installation groove, and an electric telescopic rod is fixedly connected to each of the installation grooves. The output end of the electric telescopic rod passes through the groove opening and extends into the inside of a first insertion hole. The lower ends of the mounting plate located at the lower end of the support box are fixedly connected to the lower ends of both sides of the mounting plate. The lower ends of the first support rods are all fixedly connected to a U-shaped plate. The middle of the U-shaped plate and the corresponding position of the bidirectional screw rod wall have a moving hole. The moving hole is movably sleeved on the outside of the bidirectional screw rod wall. A support plate is fixedly connected to the middle of one side of the lower end of the U-shaped plate. A bidirectional motor is fixedly connected to the lower end of the support plate. Rotating rods are fixedly connected to the output ends of both sides of the bidirectional motor. The opposite side of the rotating rod is rotatably connected to the U-shaped plate through a bearing. Several moving wheels are fixedly sleeved on both sides of the rotating rod. Several self-locking universal wheels are fixedly connected to the side of the U-shaped plate away from the rotating rod.

[0006] Specifically, the mounting plate located at the upper end of the support box is fixedly connected to a second support rod arranged in multiple ways. The upper end of the second support rod passes through a through hole and extends to the outside of the support box. The upper ends of the second support rod are all fixedly connected to a base plate.

[0007] Specifically, a symmetrically arranged handrail box is fixedly connected to the outer wall of the support box on the side away from the self-locking casters. The inner walls of both sides of the handrail box are provided with symmetrically arranged second sliding grooves. A connecting hole is provided through the top of each handrail box. Several threaded holes are provided through the side walls of the second sliding grooves. A slider is slidably connected within each second sliding groove. A connecting block is fixedly connected to each pair of sliders facing each other. A threaded groove is provided on the opposite side of each slider. A screw is threadedly connected to the threaded groove and the corresponding threaded hole. A support block is fixedly connected to the upper end of each connecting block. The upper end of each support block passes through the connecting hole and extends to the outside of the handrail box. An arc-shaped ring is fixedly connected to the upper end of each support block. Connecting straps are fixedly connected to both sides of the arc-shaped ring. Velcro hooks and Velcro loops are fixedly connected to both sides of each connecting strap.

[0008] Specifically, the U-shaped plate is located directly above the inlet and outlet.

[0009] Specifically, a turntable is fixedly connected to each of the screws on opposite sides.

[0010] Specifically, a soft pad is fixedly connected to the upper end of the seat plate.

[0011] Specifically, several symmetrically arranged support legs are fixedly connected to the two corners on the lower surface of the support box.

[0012] The beneficial effects of this invention are: (1) The lower limb exercise assistive device for medical rehabilitation described in this invention is equipped with a drive motor and a two-way lead screw to facilitate the adjustment of the position of the seat and the U-shaped plate under the sliding limit action of the first slide groove and the slide plate. This allows the patient to sit on the seat to rest when the patient is tired from using the device, restore physical strength, facilitate continuous walking exercise, and increase exercise efficiency. Moreover, the two-way motor and rotating rod inside the U-shaped plate drive the moving wheels and self-locking universal wheels to move the patient in a short distance in a straight line, which facilitates the patient's return to the starting point, avoids the need for multiple caregivers and support, is convenient to use, and has high safety.

[0013] (2) The lower limb exercise assistive device for medical rehabilitation described in this invention is designed with a second slide and a slider to facilitate height adjustment according to the height of different patients, making it easier for rehabilitation patients to support themselves and increasing the comfort of patients during exercise. In addition, the device is limited by the adhesive action of the arc ring, connecting strap and Velcro to prevent patients from losing their grip due to exhaustion and to increase the stability of use. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the internal structure of the support box in a lower limb exercise assistive device for medical rehabilitation provided by the present invention; Figure 2 This invention provides a lower limb exercise assistive device for medical rehabilitation. Figure 1 A magnified structural diagram of part A in the middle; Figure 3 A cross-sectional view of the U-shaped plate in a lower limb exercise assistive device for medical rehabilitation provided by the present invention; Figure 4 This is a top view schematic diagram of the overall structure of a lower limb exercise assistive walking device for medical rehabilitation provided by the present invention; Figure 5 This is a schematic diagram of the internal structure of the handrail box in a lower limb exercise assistive device for medical rehabilitation provided by the present invention; Figure 6 A top cross-sectional view of the support box in a lower limb exercise assistive device for medical rehabilitation provided by the present invention; Figure 7 This is a perspective view of the U-shaped plate in a lower limb exercise assistive device for medical rehabilitation provided by the present invention.

[0016] In the diagram: 1. Support box; 2. Inlet / outlet; 3. First slide groove; 4. First insertion hole; 5. Through hole; 6. Mounting hole; 7. Drive motor; 8. Two-way lead screw; 9. Screw sleeve; 10. Mounting plate; 11. Slide plate; 12. Mounting groove; 13. Electric telescopic rod; 14. First support rod; 15. U-shaped plate; 16. Moving hole; 17. Support plate; 18. Two-way motor; 19. Rotating rod; 20. Moving wheel; 21. Self-locking caster wheel; 22. Second support rod; 23. Seat plate; 24. Soft pad; 25. Handrail box; 26. Second slide groove; 27. Connecting hole; 28. Threaded hole; 29. ​​Slider; 30. Threaded groove; 31. Screw; 32. Turntable; 33. Support block; 34. Arc ring; 35. Connecting strap; 36. Velcro surface; 37. Velcro hook surface; 38. Support leg; 39. Connecting block. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-7As shown, a lower limb exercise assistive device for medical rehabilitation according to the present invention includes a support box 1. An inlet / outlet 2 is provided through the middle of the lower end of the support box 1. Symmetrically arranged first sliding grooves 3 are provided on the inner walls of both sides of the support box 1. A plurality of first insertion holes 4 are provided through the bottom of each first sliding groove 3. Symmetrically arranged through holes 5 are provided on both sides of the upper end of the support box 1. A mounting hole 6 with an internal bearing is provided through the center of the upper end of the support box 1. A drive motor 7 is fixedly connected to the upper end of the support box 1. The drive motor 7 is fixedly connected to the top of the support box 1. Furthermore, a bidirectional lead screw 8 is fixedly connected to the output end of the drive motor 7. The output end of the bidirectional lead screw 8 is rotatably connected to the inside of the support box 1 through the internal bearing of the mounting hole 6. The bidirectional lead screw 8 passes through the mounting hole 6 and extends into the inside of the support box 1. Both ends of the bidirectional lead screw 8 are threaded with threaded sleeves 9, and each threaded sleeve 9 is fixedly connected to a mounting plate 10. Each mounting plate 10 is fixedly connected to a sliding plate 11 on its opposite side. Several sliding plates 11 are slidably connected to the inside of the first sliding groove 3 on their opposite sides. Each sliding plate 11 has a mounting groove 12 inside it. Several mounting grooves 12 are fixedly connected to the inside of the first sliding groove 3. An electric telescopic rod 13 is connected, with its output end passing through the mounting groove 12 and extending into the first insertion hole 4. The lower ends of the mounting plate 10 located at the lower end of the support box 1 are fixedly connected to both sides of the lower end of the first support rod 14. A U-shaped plate 15 is fixedly connected to the lower end of the first support rod 14. A movable hole 16 is provided through the middle of the U-shaped plate 15 and at a corresponding position on the wall of the bidirectional lead screw 8. The movable hole 16 is movably fitted onto the outside of the wall of the bidirectional lead screw 8. A support plate 17 is fixedly connected to the middle of one side of the lower end of the U-shaped plate 15. A bidirectional lead screw 17 is fixedly connected to the lower end of the support plate 17. Motor 18, bidirectional motor 18 has rotating rods 19 fixedly connected to both output ends. The opposite side of the rotating rods 19 is rotatably connected to the U-shaped plate 15 through bearings. Several moving wheels 20 are fixedly sleeved on both sides of the rotating rods 19. Several self-locking casters 21 are fixedly connected to the side of the U-shaped plate 15 away from the rotating rods 19. The mounting plate 10 located at the upper end of the support box 1 is fixedly connected to a second support rod 22 arranged in multiple layers. The upper end of the second support rod 22 passes through the through hole 5 and extends to the outside of the support box 1. The upper end of the second support rod 22 is fixedly connected to a base plate 23.A symmetrically arranged handrail box 25 is fixedly connected to the outer wall of the support box 1 on the side away from the self-locking casters 21. Symmetrically arranged second sliding grooves 26 are opened on both inner walls of the handrail box 25. A connecting hole 27 is opened through the top of each handrail box 25. Several threaded holes 28 are opened through the side walls of both sides of the second sliding grooves 26. Sliding blocks 29 are slidably connected within each second sliding groove 26. A connecting block 39 is fixedly connected to each pair of sliding blocks 29 facing each other. A threaded groove 30 is opened on the opposite side of each sliding block 29. A screw 31 is threadedly connected to the threaded groove 30 and the corresponding threaded hole 28. A support block 33 is fixedly connected to the upper end of each connecting block 39. The upper end of the support block 33 passes through the connecting hole 27 and extends to the outside of the handrail box 25. An arc-shaped ring 34 is fixedly connected to the upper end of each support block 33. Connecting straps 35 are fixedly connected to both sides of the arc-shaped ring 34. Velcro hooks 36 and Velcro loops 37 are fixedly connected to both sides of the connecting straps 35, respectively.

[0019] Specifically, the U-shaped plate 15 is located directly above the inlet / outlet 2, which facilitates the movement of the U-shaped plate 15 to the lower end of the support box 1 via the inlet / outlet 2, and makes it convenient to move and use it in conjunction with the moving wheels 20 and the self-locking casters 21.

[0020] Specifically, several screws 31 are fixedly connected to a turntable 32 on opposite sides, which facilitates the quick and easy rotation of the screws 31 by the turntable 32, and makes it easier to support and limit the position of the support block 33.

[0021] Specifically, a soft pad 24 is fixedly connected to the upper end of the seat board 23, which helps to increase the support and comfort of the seat board 23 and make it easier for the patient to sit down.

[0022] Specifically, several symmetrically arranged support legs 38 are fixedly connected to the two corners of the lower surface of the support box 1. This facilitates overall support during patient exercise and movement by using the support legs 38, thereby increasing the overall support stability.

[0023] In use, when the patient needs to perform lower limb exercises, they first move the support box 1 between the two handrail boxes 25 for support. Then, they pull the arc ring 34, which pulls the support block 33. The support block 33, in turn, drives the slider 29 to slide stably within the second slide groove 26. Under the limiting action of the slider 29 and the second slide groove 26, the height of the support block 33 and the arc ring 34 is stably adjusted. Then, the turntable 32 is rotated. When the turntable 32 rotates, it drives the screw 31 to rotate, and the thread passes through the corresponding threaded hole 28 and is fastened inside the threaded groove 30. Once the height is fixed, the screw 31 is then... The patient's arm rests against the inner wall of the arc-shaped ring 34, and then the connecting strap 35 is pulled. The connecting strap 35, together with the hook and loop sides 36 and 37 of the Velcro, provides stability and limits the movement, preventing the patient from losing strength and falling during use. At this time, the patient's arm exerts force, which pulls the support box 1 through the handrail box 25. The support box 1 moves under force, and the patient's lower limbs perform walking rehabilitation. When the patient is tired, the drive motor 7 is started. The output end of the drive motor 7 drives the bidirectional lead screw 8 to rotate through the bearing inside the mounting hole 6. The bidirectional lead screw 8 synchronously drives the screw sleeve 9. The screw sleeve 9 slides between the first slide groove 3 and the slide plate 11. Under the action of the dynamic limit switch, the mounting plate 10 is stably moved. When the mounting plate 10 moves to both ends, it drives the U-shaped plate 15 and the seat plate 23 through the first support rod 14 and the second support rod 22 respectively. When the U-shaped plate 15 descends, it passes through the inlet and outlet 2 and moves to the outside of the bottom of the support box 1 until several moving wheels 20 and self-locking casters 21 contact the ground. At the same time, the second support rod 22 also moves, driving the seat plate 23 to a suitable height. Then, the electric telescopic rod 13 is activated. The electric telescopic rod 13 moves from inside the mounting groove 12 and is generated inside the first insertion hole 4. At this time, the electric telescopic rod 13 will pass through the support... Box 1 and the first insertion hole 4 support and limit the mounting plate 10. The patient can relax by sitting on the seat 23 with their arms loosened. The soft cushion 24 increases the overall comfort of the rest. At this time, the bidirectional motor 18 is started. The output end of the bidirectional motor 18 drives the rotating rod 19 to rotate through the bearing. When the rotating rod 19 rotates, it drives several moving wheels 20 to rotate and slowly push the support box 1 to move. When the moving wheels 20 rotate, they cooperate with the self-locking universal wheels 21 to facilitate the patient to make short-distance linear movements, which makes it convenient for the patient to return to use and increases the support stability and protection performance of the patient's rehabilitation training.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lower limb exercise assistive device for medical rehabilitation, characterized in that: The support box (1) includes an inlet and outlet (2) through the middle of its lower end wall. The inner walls on both sides of the support box (1) have symmetrically arranged first sliding grooves (3). The bottom of each first sliding groove (3) has several first insertion holes (4). The upper sides of the support box (1) have symmetrically arranged through holes (5). The center of the upper end of the support box (1) has a through hole (6) with an internal bearing. A drive motor (7) is fixedly connected to the upper end of the support box (1). At the top, and the output end of the drive motor (7) is fixedly connected to a bidirectional lead screw (8). The output end of the bidirectional lead screw (8) is rotatably connected to the inside of the support box (1) through the bearing inside the mounting hole (6). The bidirectional lead screw (8) passes through the mounting hole (6) and extends into the inside of the support box (1). Both ends of the bidirectional lead screw (8) are threaded with threaded sleeves (9). Each threaded sleeve (9) is fixedly connected to a mounting plate (10). Each mounting plate (10) is fixedly connected to a sliding plate (11) on the opposite side. Several sliding plates (11) are slidably connected to the inside of the first slide groove (3) on the opposite side. The sliding plate (11) is provided with mounting slots (12) inside each of the mounting slots (12), and electric telescopic rods (13) are fixedly connected inside each of the mounting slots (12). The output end of the electric telescopic rod (13) passes through the slot of the mounting slot (12) and extends into the first insertion hole (4). The lower ends of the mounting plate (10) located at the lower end of the support box (1) are fixedly connected to the lower ends of both sides of the first support rod (14). The lower ends of the first support rods (14) are fixedly connected to a U-shaped plate (15). The middle part of the U-shaped plate (15) and the corresponding position of the wall of the double-acting screw (8) are provided with moving holes (16). The movable hole (16) is movably sleeved on the outside of the wall of the bidirectional lead screw (8). A support plate (17) is fixedly connected to the middle of one side of the lower end of the U-shaped plate (15). A bidirectional motor (18) is fixedly connected to the lower end of the support plate (17). Rotary rods (19) are fixedly connected to both output ends of the bidirectional motor (18). The opposite side of the rotating rod (19) is rotatably connected to the U-shaped plate (15) through a bearing. Several moving wheels (20) are fixedly sleeved on both sides of the rotating rod (19). Several self-locking universal wheels (21) are fixedly connected to the side of the U-shaped plate (15) away from the rotating rod (19).

2. The lower limb exercise assistive device for medical rehabilitation according to claim 1, characterized in that: The mounting plate (10) located at the upper end of the support box (1) is fixedly connected to a second support rod (22) arranged in multiple ways. The upper end of the second support rod (22) passes through the through hole (5) and extends to the outside of the support box (1). The upper end of the second support rod (22) is fixedly connected to a seat plate (23). The support box (1) is fixedly connected to a symmetrically arranged handrail box (25) on the outer wall of the side away from the several self-locking casters (21). The inner walls of both sides of the handrail box (25) are provided with symmetrically arranged second sliding grooves (26). The top of the handrail box (25) is provided with a connecting hole (27). The side walls of the second sliding groove (26) are provided with several threaded holes (28). The second slide groove (26) is slidably connected to a slider (29). Each pair of sliders (29) is fixedly connected to a connecting block (39) on opposite sides. Each slider (29) has a threaded groove (30) on opposite sides. The threaded groove (30) and the corresponding threaded hole (28) are threadedly connected to a screw (31). Each connecting block (39) has a support block (33) fixedly connected to its upper end. The upper end of the support block (33) passes through the connecting hole (27) and extends to the outside of the handrail box (25). Each support block (33) has an arc ring (34) fixedly connected to its upper end. Each arc ring (34) has a connecting strip (35) fixedly connected to both sides. Each connecting strip (35) has a Velcro nap (36) and a Velcro hook (37) fixedly connected to both sides.

3. The lower limb exercise assistive device for medical rehabilitation according to claim 1, characterized in that: The U-shaped plate (15) is located directly above the inlet / outlet (2).

4. The lower limb exercise assistive device for medical rehabilitation according to claim 1, characterized in that: A turntable (32) is fixedly connected to one side of each of the screws (31).

5. The lower limb exercise assistive device for medical rehabilitation according to claim 2, characterized in that: A soft pad (24) is fixedly connected to the upper end of the seat plate (23).

6. The lower limb exercise assistive device for medical rehabilitation according to claim 1, characterized in that: Several symmetrically arranged support legs (38) are fixedly connected to the two corners of the lower surface of the support box (1).

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