Walking assisting device for lower limb rehabilitation training

Abstract

The invention relates to the technical field of rehabilitation medical equipment, and discloses a lower limb rehabilitation training walking assisting device which comprises a base, trundle supports are fixedly mounted on the bottom surface of the base, limiting seats are mounted in the trundle supports, rollers are mounted on the bottom surfaces of the limiting seats, and supporting rods and a base are fixedly mounted on the top surface of the base. A first limiting sliding groove is formed in the rear side face of the base, a first sliding block is slidably installed in the first limiting sliding groove, a cushion is installed on the rear side face of the first sliding block, a first handrail is installed at the top end of the supporting rod, and an adjusting base is installed on the top face of the first handrail. Force bearing points can be evenly dispersed through the multiple supporting rods, the gravity center of the body of a patient with extremely weak lower limb muscle force and poor balance function is prone to shifting, the multiple supporting rods can form a stable geometric supporting structure, even if the gravity center of the patient temporarily deviates, the device can disperse force through the multiple supporting rods, overall toppling is avoided, and the overall stability is improved.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation medical equipment technology, specifically to a walking assistance device for lower limb rehabilitation training. Background Technology

[0002] Lower limb rehabilitation training is a process designed for individuals with lower limb dysfunction or injury. Through scientific and systematic training methods, it aims to restore or improve lower limb motor function, balance, muscle strength, and coordination. Its core goal is to help patients regain independent walking ability, improve their self-care abilities, and return to normal life or work. Because patients with lower limb dysfunction often have difficulty standing or walking independently due to insufficient muscle strength, balance disorders, or pain, a walking aid is needed. This aid distributes body weight, increases the support area, reduces pressure on the lower limbs, lowers the risk of falls, promotes the rehabilitation process, and lays the foundation for subsequent rehabilitation.

[0003] According to a search, Chinese patent document CN217286434U discloses a lower limb rehabilitation assistive walking device. By incorporating a rotating screw and bottom rollers, the device can be moved as needed by rotating the screw to unscrew the bottom rollers from the base mounting cavity. During rehabilitation training, the bottom rollers are screwed back into the base mounting cavity by rotating the screw, with the lower surfaces of the first and second bases grounded, increasing the device's stability. The device also features first and second handrails, allowing the patient to grip them and maintain balance. However, due to the device's large overall size, patients are prone to imbalance during movement. Furthermore, the device firmly fixes the patient's chest and waist to the equipment, making it difficult for the patient to disengage in case of imbalance, posing a significant safety risk. Additionally, adjusting the rollers and support rods is difficult for the patient to do independently, resulting in poor practicality and unnecessary workload for medical staff. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a walking assistance device for lower limb rehabilitation training, which has the advantages of effectively preventing tipping, convenient self-adjustment, and improving training safety, thus solving the aforementioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lower limb rehabilitation training walking assistance device, comprising a base, a caster support fixedly installed on the bottom surface of the base, a limiting seat installed inside the caster support, a roller installed on the bottom surface of the limiting seat, a support rod and a base fixedly installed on the top surface of the base, a first limiting groove formed on the rear side of the base, a first slider slidably installed inside the first limiting groove, a seat cushion fixedly installed on the rear side of the first slider, a first handrail fixedly installed at the top of the support rod, an adjusting seat fixedly installed on the top surface of the first handrail, an adjusting rod installed inside the adjusting seat, a second limiting groove formed inside the adjusting seat, a second slider and a spring installed inside the second limiting groove, a connecting rod fixedly installed inside the second slider, a handle fixedly installed on the outer end face of the connecting rod, and a second handrail fixedly installed on the top surface of the adjusting rod.

[0006] Preferably, there are multiple caster supports, multiple limiting seats, and multiple rollers, and the multiple limiting seats are rotatably installed inside the multiple caster supports.

[0007] With the above technical solution, when patients walk with the device, the flexibility of movement can reduce their energy expenditure on operating the device, allowing them to focus more on training lower limb strength and balance control. When turning or going around obstacles, only a little force is needed to make the limiting seat rotate inside the caster support, thus making it easy and flexible to turn and change the direction of travel, improving mobility, adapting to complex scenarios and diverse training needs, and improving rehabilitation efficiency.

[0008] Preferably, the number of support rods is set to multiple, and the multiple support rods are evenly distributed on the top surface of the base.

[0009] Through the above technical solution, multiple support rods can evenly distribute the force points. For patients with extremely weak lower limb muscle strength and poor balance function, their body center of gravity is prone to shift. Multiple support rods can form a stable geometric support structure. Even if the patient's center of gravity shifts temporarily, the device can distribute the force through multiple rods to prevent the whole body from tipping over and improve the overall stability.

[0010] Preferably, the outer side of the first slider is provided with a first limiting block, and the first limiting block is slidably installed inside the first limiting groove.

[0011] With the above technical solution, when the patient is tired during training, pulling the seat cushion outward will cause the first slider to slide inside the first limiting groove. The first limiting groove can effectively limit the movement of the first limiting block and the first slider to prevent the seat cushion from falling off, thus improving the overall stability and convenience.

[0012] Preferably, there are two of each of the adjusting seat, the second limiting slide groove, the second slider, the spring, the connecting rod, and the handle, and the second slider is slidably installed inside the second limiting slide groove, and the end of the spring away from the second limiting slide groove is fixedly connected to the inner side of the second slider.

[0013] With the above technical solution, pulling the handle outward will move the connecting rod and the second slider. When the connecting rod leaves the position of the adjusting rod, the height of the adjusting rod and the second handrail can be adjusted to meet the needs of patients of different heights for the handrail height. When the handle is released, the connecting rod and the second slider can move inward under the action of the spring, which can limit the position of the adjusting rod, ensure the stability of the second handrail, and ensure the normal operation of the device.

[0014] Preferably, there are two adjusting rods, and the two adjusting rods are slidably installed inside the first handrail, with a second limiting block installed at the bottom end of each of the two adjusting rods.

[0015] Through the above technical solution, when adjusting the height of the adjusting rod and the second handrail, the first handrail can restrict the position of the adjusting rod to prevent horizontal displacement. Similarly, the second limiting block can also restrict the adjusting rod to prevent excessive movement or detachment, thereby improving the overall stability of the device.

[0016] Preferably, the outer side of the adjusting rod is provided with a plurality of limiting holes, and the top end of the connecting rod is inserted into the interior of the limiting holes.

[0017] With the above technical solution, when adjusting the height of the adjusting rod and the second handrail, the position of the adjusting rod can be fixed by inserting the top of the connecting rod into the limiting hole. This allows for the adjustment of the handrail height to meet the different needs of patients of different heights, thus improving the overall applicability of the device.

[0018] Compared with the prior art, the present invention provides a walking assistance device for lower limb rehabilitation training, which has the following beneficial effects: 1. This invention uses multiple support rods to evenly distribute the force points. For patients with extremely weak lower limb muscles and poor balance, their center of gravity is easily shifted. Multiple support rods can form a stable geometric support structure. Even if the patient's center of gravity shifts temporarily, the device can distribute the force through multiple rods to prevent the whole body from tipping over, thus improving overall stability. By pulling the cushion outward, the first slider can slide inside the first limiting groove. The first limiting groove can effectively limit the movement of the first limiting block and the first slider to prevent the cushion from falling off, thus improving overall stability and convenience.

[0019] 2. This invention allows the connecting rod and the second slider to move by pulling the handle outward. When the connecting rod leaves the position of the limiting hole, the height of the adjusting rod and the second handrail can be adjusted to meet the needs of patients of different heights. When the handle is released, the connecting rod and the second slider can move inward under the action of the spring. When the top of the connecting rod is inserted into the inside of the limiting hole, the position of the adjusting rod can be fixed to ensure the stability of the second handrail and ensure the normal operation of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional cross-sectional schematic diagram of the structural limiting seat and other parts of the present invention; Figure 3 This is a three-dimensional cross-sectional schematic diagram of the structural base and other parts of the present invention; Figure 4 This is a front cross-sectional view of the first handrail and other components of the structure of the present invention.

[0021] The components are: 1. Base; 2. Caster support; 3. Limiting seat; 4. Roller; 5. Support rod; 6. Base; 7. First limiting groove; 8. First slider; 9. Seat cushion; 10. First armrest; 11. Adjusting seat; 12. Adjusting rod; 13. Second limiting groove; 14. Second slider; 15. Spring; 16. Connecting rod; 17. Handle; 18. Second armrest; 19. First limiting block; 20. Second limiting block; 21. Limiting hole. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1-4A walking aid for lower limb rehabilitation training includes a base 1, a caster support 2 fixedly installed on the bottom surface of the base 1, a limit seat 3 installed inside the caster support 2, a roller 4 installed on the bottom surface of the limit seat 3, a support rod 5 and a base 6 fixedly installed on the top surface of the base 1, a first limiting groove 7 opened on the rear side of the base 6, a first slider 8 slidably installed inside the first limiting groove 7, a seat cushion 9 fixedly installed on the rear side of the first slider 8, a first handrail 10 fixedly installed at the top of the support rod 5, an adjustment seat 11 fixedly installed on the top surface of the first handrail 10, an adjustment rod 12 installed inside the adjustment seat 11, a second limiting groove 13 opened inside the adjustment seat 11, a second slider 14 and a spring 15 installed inside the second limiting groove 13, a connecting rod 16 fixedly installed inside the second slider 14, a handle 17 fixedly installed on the outer end face of the connecting rod 16, and a second handrail 18 fixedly installed on the top surface of the adjustment rod 12.

[0024] Specifically, multiple caster supports 2, limiting seats 3, and rollers 4 are provided, with multiple limiting seats 3 correspondingly rotatably installed inside multiple caster supports 2. The advantage is that, with this structure, when patients rely on the device for walking, the flexible mobility reduces the energy expenditure required to operate the device, allowing them to focus more on training lower limb strength and balance control. When turning or avoiding obstacles, only slight force is needed to rotate the limiting seats 3 inside the caster supports 2, thus enabling easy and flexible turning and changing of direction, improving mobility, adapting to complex scenarios and diverse training needs, and enhancing rehabilitation efficiency.

[0025] Specifically, multiple support rods 5 are provided, and these support rods 5 are evenly distributed on the top surface of the base 1. The advantage is that this structure allows multiple support rods 5 to evenly distribute the force points. For patients with extremely weak lower limb muscles and poor balance, their center of gravity is prone to shift. Multiple support rods 5 can form a stable geometric support structure. Even if the patient's center of gravity shifts temporarily, the device can distribute the force through multiple rods, preventing the whole device from tipping over and improving overall stability.

[0026] Specifically, a first limiting block 19 is provided on the outer side of the first slider 8, and the first limiting block 19 is correspondingly slidably installed inside the first limiting groove 7. The advantage is that, with this structure, when the patient is tired during training, pulling the cushion 9 outward will cause the first slider 8 to slide inside the first limiting groove 7. The first limiting groove 7 can effectively limit the movement of the first limiting block 19 and the first slider 8, preventing the cushion 9 from falling off, thus improving the overall stability and convenience.

[0027] Specifically, the device includes two versions of each of the following components: adjusting seat 11, second limiting slide groove 13, second slider 14, spring 15, connecting rod 16, and handle 17. The second slider 14 is slidably mounted inside the second limiting slide groove 13, and the end of the spring 15 away from the second limiting slide groove 13 is fixedly connected to the inner side of the second slider 14. The advantage is that pulling the handle 17 outwards via this structure moves the connecting rod 16 and the second slider 14. When the connecting rod 16 moves away from the position of the adjusting rod 12, the height of the adjusting rod 12 and the second handrail 18 can be adjusted, thus meeting the height requirements of patients of different heights. When the handle 17 is released, the connecting rod 16 and the second slider 14 move inwards under the force of the spring 15, thereby limiting the position of the adjusting rod 12, ensuring the stability of the second handrail 18, and guaranteeing the normal operation of the device.

[0028] Specifically, there are two adjusting rods 12, and both adjusting rods 12 are slidably installed inside the first handrail 10. A second limiting block 20 is installed at the bottom end of each adjusting rod 12. The advantage is that, with this structure, when adjusting the height of the adjusting rods 12 and the second handrail 18, the first handrail 10 can restrict the position of the adjusting rods 12, preventing horizontal displacement. Similarly, the second limiting block 20 can also restrain the adjusting rods 12, preventing excessive movement or detachment, thus improving the overall stability of the device.

[0029] Specifically, the outer side of the adjusting rod 12 has multiple limiting holes 21, and the top end of the connecting rod 16 is inserted into the corresponding limiting hole 21. The advantage is that, with this structure, when adjusting the height of the adjusting rod 12 and the second handrail 18, simply inserting the top end of the connecting rod 16 into the corresponding limiting hole 21 fixes the position of the adjusting rod 12. This allows for better adaptation to the different height requirements of patients of varying heights, improving the overall applicability of the device.

[0030] During use, the force is evenly distributed through multiple support rods 5. For patients with extremely weak lower limb muscles and poor balance, their center of gravity is prone to shift. The multiple support rods 5 form a stable geometric support structure. Even if the patient's center of gravity shifts temporarily, the device can distribute the force through multiple rods, preventing the entire device from tipping over and improving overall stability. By pulling the seat cushion 9 outward, the first slider 8 can slide inside the first limiting groove 7. The first limiting groove 7 can effectively limit the movement of the first limiting block 19 and the first slider 8, preventing the seat cushion 9 from falling off and improving overall stability. The device offers stability and convenience. By pulling the handle 17 outward, the connecting rod 16 and the second slider 14 can be moved. When the connecting rod 16 leaves the position of the limiting hole 21, the height of the adjusting rod 12 and the second handrail 18 can be adjusted to meet the needs of patients of different heights for the handrail height. When the handle 17 is released, the connecting rod 16 and the second slider 14 can move inward under the force of the spring 15. When the top of the connecting rod 16 is inserted into the inside of the limiting hole 21, the position of the adjusting rod 12 can be fixed, ensuring the stability of the position of the second handrail 18 and guaranteeing the normal operation of the device.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A walking aid device for lower limb rehabilitation training, comprising a base (1), characterized in that: A caster support (2) is fixedly installed on the bottom surface of the base (1). A limit seat (3) is installed inside the caster support (2). A roller (4) is installed on the bottom surface of the limit seat (3). A support rod (5) and a base (6) are fixedly installed on the top surface of the base (1). A first limiting groove (7) is opened on the rear side of the base (6). A first slider (8) is slidably installed inside the first limiting groove (7). A seat cushion (9) is fixedly installed on the rear side of the first slider (8). A first armrest is fixedly installed on the top of the support rod (5). (10) An adjusting seat (11) is fixedly installed on the top surface of the first handrail (10). An adjusting rod (12) is installed inside the adjusting seat (11). A second limiting groove (13) is opened inside the adjusting seat (11). A second slider (14) and a spring (15) are installed inside the second limiting groove (13). A connecting rod (16) is fixedly installed inside the second slider (14). A handle (17) is fixedly installed on the outer end face of the connecting rod (16). A second handrail (18) is fixedly installed on the top surface of the adjusting rod (12).

2. The lower limb rehabilitation training walking assistance device according to claim 1, characterized in that: The caster support (2), the limiting seat (3) and the roller (4) are all provided in multiple quantities, and the multiple limiting seats (3) are rotatably installed inside the multiple caster supports (2).

3. The lower limb rehabilitation training walking assistance device according to claim 1, characterized in that: The number of the support rods (5) is set to multiple, and the multiple support rods (5) are evenly distributed on the top surface of the base (1).

4. The lower limb rehabilitation training walking assistance device according to claim 1, characterized in that: The outer side of the first slider (8) is provided with a first limiting block (19), and the first limiting block (19) is slidably installed inside the first limiting groove (7).

5. The lower limb rehabilitation training walking assistive device according to claim 1, characterized in that: The number of the adjusting seat (11), the second limiting slide groove (13), the second slider (14), the spring (15), the connecting rod (16) and the handle (17) are all provided in two, and the second slider (14) is slidably installed inside the second limiting slide groove (13), and the end of the spring (15) away from the second limiting slide groove (13) is fixedly connected to the inner side of the second slider (14).

6. The lower limb rehabilitation training walking assistance device according to claim 1, characterized in that: There are two adjusting rods (12), and the two adjusting rods (12) are slidably installed inside the first handrail (10). The bottom end of each of the two adjusting rods (12) is equipped with a second limiting block (20).

7. The lower limb rehabilitation training walking assistance device according to claim 1, characterized in that: The outer side of the adjusting rod (12) is provided with a plurality of limiting holes (21), and the top end of the connecting rod (16) is inserted into the interior of the limiting holes (21).

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