Auxiliary walking device for bone rehabilitation

Abstract

The invention relates to the technical field of walking assistance, in particular to a skeleton rehabilitation walking assisting device. The power assisting device comprises a foot power assisting device body and a knee joint power assisting device body, a connecting belt is arranged between the foot power assisting device body and the knee joint power assisting device body, the foot power assisting device body and the knee joint power assisting device body are connected through the connecting belt, the foot power assisting device body comprises a containing plate, and a hinge assembly is arranged on the bottom side of the containing plate. Power assisting assemblies are arranged on the two sides of the containing plate. When the foot is parallel to the ground, a ground contact plate in a hinge assembly drives a threaded rod to extrude an auxiliary spring through a nut, the threaded rod slides in a sliding ring, the sliding ring rotates on a supporting strip, when the foot is lifted, the threaded rod is extruded through the auxiliary spring in an auxiliary assembly, and the foot is lifted up. And meanwhile, one end of the threaded rod drives the ground contact plate to rotate on the bottom side of the placement plate, so that the effect of assisting the feet is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of walking assistance, and in particular to a bone rehabilitation walking assistance device. Background Art

[0002] The problem of population aging is getting worse. The number of patients with lower limb motor dysfunction caused by stroke is large and increasing. The patients' standing up, walking and other motor behaviors are affected to varying degrees. However, the number of rehabilitation therapists is seriously insufficient. Therefore, there is an increasing demand for functional equipment such as sports assistance and rehabilitation training, which can provide joint assistance for human movement and help complete walking movements. In addition, in order to reduce the discomfort caused by wearing exoskeleton equipment for different users, the power-assisted exoskeleton equipment designed in accordance with ergonomics is of great research and use value.

[0003] A lower limb assisted walking device is a wearable mechanical device that assists human movement. It can enhance the wearer's load-bearing and walking ability, reduce the wearer's energy consumption during exercise, and assist the elderly, patients with lower limb functional injuries and other people who have exercise assistance needs to achieve walking assistance or exercise rehabilitation training. When the elderly and patients with lower limb functional injuries are walking, they need to lift their feet and provide upward assistance to the feet. At the same time, during the walking process, the assisted walking device will produce friction on the thighs and calves, causing redness and swelling of the thighs and calves, so it is necessary to reduce the friction of the assisted walking device on the thighs and calves. Summary of the invention

[0004] The purpose of the present invention is to provide a bone rehabilitation assisted walking device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, a bone rehabilitation assisted walking device is provided, including a foot assisting device and a knee joint assisting device, a connecting belt is arranged between the foot assisting device and the knee joint assisting device, and the foot assisting device and the knee joint assisting device are connected by the connecting belt, and the hinge assembly is arranged at the bottom of the assisting assembly, the foot assisting device includes a placement plate, a hinge assembly is arranged on the bottom side of the placement plate, and assisting assemblies are arranged on both sides of the placement plate. When the foot is parallel to the ground, the hinge assembly presses the assisting assembly so that the hinge assembly is arranged parallel to the placement plate, and the assisting assembly accumulates force on the hinge assembly. When the foot is lifted, the assisting assembly drives the hinge assembly to rotate on the bottom side of the placement plate, thereby assisting the placement plate, and at the same time, the hinge assembly is made into a triangular support shape with the help of the assisting assembly.

[0006] As a further improvement of the present technical solution, the foot assist device includes a first fixing strap and a fixing groove, the two ends of the first fixing strap are fixed on both sides of the placement plate near the center position, the fixing groove is opened on the top side of the placement plate, and the fixing groove is located at the bottom of the first fixing strap, and the first fixing strap is used to fix the sole of the foot in the fixing groove.

[0007] As a further improvement of the present technical solution, the hinge assembly includes a ground contact plate, an ankle support plate and a second fixing belt, the ground contact plate is hinged on the bottom side of the placement plate, and two first sliding grooves are provided on the top side of the ground contact plate away from the hinge between the ground contact plate and the placement plate, and the two first sliding grooves are arranged in parallel, a first sliding block is slidably installed in the first sliding groove, the bottom side of the ankle support plate is fixed to the two first sliding blocks, the two ends of the second fixing belt are fixedly connected to the two sides of the ankle support plate near the center position, second sliding grooves are provided on both sides of the ankle support plate, the placement plate is provided with a notch, and the notch is close to the two first sliding grooves, and the inner walls on both sides of the notch are provided with first sliding pins, and the second sliding groove cooperates with the first sliding pin to enable the ankle support plate to slide on the placement plate.

[0008] As a further improvement of the technical solution, a support plate is hinged at the center position of the bottom side of the placement plate, and the support plate is hinged to the ankle support plate away from the hinge between the placement plate and the support plate. When the ankle support plate slides on the ground contact plate, the second sliding grooves on both sides of the ankle support plate slide along the placement plate, so that the placement plate limits the ankle support plate.

[0009] As a further improvement of the technical solution, a support bar is fixedly installed on the top side of the placement plate near the two corners, and the power assist assembly includes a threaded rod, which is hinged on one side of the ground contact plate, and a sliding ring is slidably installed on the threaded rod, and the sliding ring rotates on the support bar, and an extrusion nut is threadedly connected to the threaded rod.

[0010] As a further improvement of the technical solution, a booster spring is sleeved on the threaded rod, and the booster spring is located between the sliding ring and the extrusion nut. The booster spring is squeezed by rotating the extrusion nut to adjust the tension of the booster spring.

[0011] As a further improvement of the present technical solution, the knee joint assisting device comprises a first splint and a second splint, the first splint and the second splint are hinged together, a torsion spring is arranged at the hinge between the first splint and the second splint, and the torsion spring assists the first splint and the second splint.

[0012] As a further improvement of the technical solution, a knee fixing belt is hingedly connected at the hinged joint between the first splint and the second splint, and the hinged joint between the first splint and the second splint of the knee fixing belt is fixed to the back of the knee joint.

[0013] As a further improvement of the present technical solution, the first splint and the second splint are both provided with a sliding assembly, the sliding assembly includes a receiving plate, the top side of the receiving plate is fixedly connected with a widened fixing belt, the widened fixing belt fixes the thigh and the calf, and second sliding pins are fixedly installed at the four corners of the bottom side of the receiving plate, and two sliding holes are provided on the first splint and the second splint, and the two sliding holes are arranged in parallel.

[0014] As a further improvement of the technical solution, a second sliding block is slidably installed on the second sliding pin, and the two second sliding blocks slide in the sliding hole. A buffer spring is sleeved on the second sliding pin, and the buffer spring is located between the receiving plate and the second sliding block. The buffer spring is used to reduce vibration to the thigh and calf.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the bone rehabilitation assisted walking device, when the foot is parallel to the ground, the ground contact plate in the hinge assembly drives the threaded rod to squeeze the assist spring through the nut, the threaded rod slides in the sliding ring and the sliding ring rotates on the support bar. When the foot is lifted, the threaded rod is squeezed by the assist spring in the assist assembly, so that the threaded rod slides in the sliding ring. At the same time, one end of the threaded rod rotates on the bottom side of the placement plate with the ground contact plate, so that the ground contact plate rotates to prop up the placement plate, thereby achieving the effect of assisting the footsteps.

[0017] 2. In the bone rehabilitation assisted walking device, the receiving plate in the sliding assembly is used to slide on the first splint or the second splint through multiple sliding pins and multiple second sliding blocks. The receiving plate will move with the movement of the thigh and calf, which can reduce the friction of the knee joint assist device for the elderly and patients with lower limb function impairment, and avoid redness and swelling of the thighs and calves of the elderly and patients with lower limb function impairment who are using the knee joint assist device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the foot power-assisting device of the present invention;

[0020] Figure 3 is a schematic cross-sectional view of the foot power-assisting device of the present invention;

[0021] Figure 4This is one of the schematic diagrams of the structure of some parts of the hinge assembly of the present invention;

[0022] Figure 5 The second schematic diagram of the structure of some parts of the hinge assembly of the present invention;

[0023] Figure 6 This is the third structural schematic diagram of the power assist assembly of the present invention;

[0024] Figure 7 It is a schematic diagram of the state structure of the foot power-assisting device of the present invention;

[0025] Figure 8 It is a schematic diagram of the cross-sectional structure of the foot power-assisting device of the present invention;

[0026] Fig. 9 It is a schematic structural diagram of the knee joint assisting device of the present invention;

[0027] Fig.10 It is a schematic diagram of the state structure of the knee joint assisting device of the present invention;

[0028] Fig.11 It is a schematic diagram of the structure of the sliding assembly of the present invention;

[0029] Fig.12 It is a schematic diagram of the planar structure of the foot power-assisting device of the present invention before movement;

[0030] Fig.13 It is a schematic diagram of the planar structure of the foot power-assisting device of the present invention after exercise.

[0031] The meaning of each number in the figure is:

[0032] 1. Connecting belt;

[0033] 2. Foot assist device; 21. Placement board; 22. First fixing belt; 23. Fixing groove; 24. Support bar;

[0034] 25, hinge assembly; 251, ground contact plate; 252, support plate; 253, ankle support plate; 254, first sliding block; 255, second fixing belt;

[0035] 26. Power assist assembly; 261. Threaded rod; 262. Sliding ring; 263. Extrusion nut; 264. Power assist spring;

[0036] 3. Knee joint booster; 31. First splint; 32. Second splint; 33. Torsion spring; 34. Knee fixing belt;

[0037] 35. Sliding assembly; 351. Adapter plate; 352. Widened fixing belt; 353. Second sliding pin; 354. Second sliding block; 355. Buffer spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] Example 1

[0041] See also Figure 1 As shown, the purpose of this embodiment is to provide a bone rehabilitation power-assisted walking device, including a foot power-assisted device 2 and a knee joint power-assisted device 3, a connecting belt 1 is arranged between the foot power-assisted device 2 and the knee joint power-assisted device 3, and the foot power-assisted device 2 and the knee joint power-assisted device 3 are connected by the connecting belt 1, and the connecting belt 1 has a certain toughness, which is convenient for the elderly and patients with lower limb functional impairment to pull it, and the hinge assembly 25 is arranged at the bottom of the power-assisted assembly 26, the foot power-assisted device 2 includes a placement plate 21, the bottom side of the placement plate 21 is provided with a hinge assembly 25, and the two sides of the placement plate 21 are provided with power-assisted The power component 26, when the foot is parallel to the ground, the hinge component 25 squeezes the power component 26, so that the hinge component 25 is set parallel to the placement plate 21, and the power component 26 stores power for the hinge component 25. When the foot is lifted, the power component 26 drives the hinge component 25 to rotate on the bottom side of the placement plate 21, thereby assisting the placement plate 21. At the same time, the hinge component 25 is made into a triangular support shape with the help of the power component 26, which is convenient for the elderly and patients with lower limb functional impairment to have an upward power when lifting their feet, thereby helping the elderly and patients with lower limb functional impairment to achieve the effect of assisted walking.

[0042] See also Figure 2As shown, the foot assist device 2 includes a first fixing belt 22 and a fixing groove 23. The two ends of the first fixing belt 22 are fixed on both sides of the placement plate 21 near the center position. The first fixing belt 22 is used to fix the foot to facilitate wearing by the elderly and patients with lower limb functional impairment. The fixing groove 23 is opened on the top side of the placement plate 21, and the fixing groove 23 is located at the bottom of the first fixing belt 22. The first fixing belt 22 is used to fix the sole of the foot in the fixing groove 23, and the fixing groove 23 is used to fit and fix the sole of the foot to prevent the sole of the foot from shifting during walking.

[0043] See also Figure 3-Figure 5 As shown, the hinge assembly 25 includes a ground contact plate 251, an ankle support plate 253 and a second fixing belt 255. The ground contact plate 251 is hinged on the bottom side of the placement plate 21. Two first sliding grooves are provided on the top side of the ground contact plate 251 away from the hinge between the ground contact plate 251 and the placement plate 21, and the two first sliding grooves are arranged in parallel. A first sliding block 254 is slidably installed in the first sliding groove. The bottom side of the ankle support plate 253 is fixed to the two first sliding blocks 254. The two ends of the second fixing belt 255 are fixedly connected to the two sides of the ankle support plate 253 near the center position. The second fixing belt 255 is used to fix the ankle position on the ankle support plate 253. At the same time, it is also convenient for the elderly and patients with lower limb functional impairment to wear. Under the cooperation of the first sliding groove and the first sliding block 254, the ankle support plate 253 slides on the ground contact plate 251. When the ground contact plate 25 When the ankle support plate 253 is rotated, it drives the ankle support plate 253 to rotate and also slide, so that the ankle support plate 253 moves together with the ankle, and second sliding grooves are arranged on both sides of the ankle support plate 253, and the placement plate 21 is provided with a notch, and the notch is close to the two first sliding grooves, and the inner walls on both sides of the notch are provided with first sliding pins, and the second sliding groove cooperates with the first sliding pin to make the ankle support plate 253 slide on the placement plate 21, which can achieve the effect of limiting the ankle support plate 253, and the support plate 252 is hinged on the ankle support plate 253 at the center position of the bottom side of the placement plate 21, and the support plate 252 is hinged on the ankle support plate 253 away from the placement plate 21 and the hinged part of the support plate 252, when the ankle support plate 253 slides on the ground contact plate 251, the second sliding grooves on both sides of the ankle support plate 253 slide along the two first sliding pins in the notch, thereby achieving the effect of limiting the ankle support plate 253.

[0044] See also Figure 6-Figure 8As shown, a support bar 24 is fixedly installed on the top side of the placement plate 21 near the two corners, and the power-assisting assembly 26 includes a threaded rod 261, which is hinged on one side of the ground contact plate 251. A sliding ring 262 is slidably installed on the threaded rod 261, and the sliding ring 262 allows the threaded rod 261 to slide and rotate on the support bar 24, thereby achieving the effect of sliding and rotating the threaded rod 261. An extrusion nut 263 is threadedly connected to the threaded rod 261, and a power-assisting spring 264 is sleeved on the threaded rod 261, and the power-assisting spring 264 is located between the sliding ring 262 and the extrusion nut 263. According to the conditions of the elderly and patients with lower limb functional impairment, the power-assisting spring 264 is squeezed by rotating the extrusion nut 263, thereby achieving the adjustment of the tension of the power-assisting spring 264.

[0045] See also Figure 9-10 As shown, the knee joint assisting device 3 includes a first splint 31 and a second splint 32, and a torsion spring 33 is arranged at the hinge of the first splint 31 and the second splint 32. The first splint 31 and the second splint 32 are hinged together, and the torsion spring 33 is used to assist the first splint 31 and the second splint 32, so as to achieve the effect of assisting the thigh and calf. A knee fixing belt 34 is hinged at the hinge of the first splint 31 and the second splint 32, and the hinge of the first splint 31 and the second splint 32 is fixed to the back of the knee joint through the knee fixing belt 34, so as to achieve the effect of assisting the knee joint.

[0046] See also Fig.11 As shown, the sliding assembly 35 includes a receiving plate 351, and a widened fixing belt 352 is fixedly connected to the top side of the receiving plate 351. The widened fixing belt 352 fixes the thigh and the calf, and is convenient for the elderly and patients with lower limb functional impairment to wear. The four corners of the bottom side of the receiving plate 351 are fixedly installed with second sliding pins 353. The first splint 31 and the second splint 32 are each provided with two sliding holes. The outer side of the second sliding pin 353 is slidably installed with a second sliding block 354. The two second sliding blocks 354 are fixedly installed with the second sliding pin 354. 54 slides in the sliding hole, and through the cooperation between the sliding hole and the second sliding block 354, when the thigh and the calf are bent, the friction between the widened fixing belt 352 and the thigh and the calf is reduced to avoid redness and swelling. In this way, the friction of the widened fixing belt 352 on the thigh and the calf can be reduced. A buffer spring 355 is sleeved on the second sliding pin 353. The buffer spring 355 is located between the receiving plate 351 and the second sliding block 354. The buffer spring 355 is used to reduce the vibration of the thigh and the calf.

[0047] See also Figure 12-13As shown, when the bone rehabilitation power-assisted walking device of the present invention is used, first, the foot is fixed on the placement plate 21 through the first fixing belt 22, and the ankle is fixed on the ankle support plate 253 through the second fixing belt 255. Then, the threaded rod 261 is driven by the power-assisting spring 264 to slide on the sliding ring 262, and the tension of the power-assisting spring 264 can be adjusted by rotating the extrusion nut 263. The ground contact plate 251 is driven by the threaded rod 261 to rotate on the bottom side of the placement plate 21, and the first sliding block 254 is used to adjust the tension of the power-assisting spring 264. In cooperation with the first sliding groove, the ankle support plate 253 slides on the ground contact plate 251, and the ankle support plate 253 is hinged on the first sliding block 254, and the second sliding grooves on both sides of the ankle support plate 253 slide close to one side of the placement plate 21, and at the same time, the top side of the ankle support plate 253 close to the ground contact plate 251 is hinged to the support plate 252, and the support plate 252 is also hinged to the bottom side of the placement plate 21. Finally, when the elderly and patients with lower limb functional impairment are walking, the effect of assisting the feet can be achieved.

[0048] First, the hinge of the first splint 31 and the second splint 32 is fixed at the knee joint through the knee fixing belt 34, and then the thigh and calf are fixed by the widened fixing belt 352. Then, the torsion spring 33 at the hinge of the first splint 31 and the second splint 32 is used to assist the knee joint. The two sliding holes of the first splint 31 and the second splint 32 allow the receiving plate 351 to slide on the first splint 31 and the second splint 32 through multiple second sliding pins 353 and multiple second sliding blocks 354. This can reduce the friction of the widened fixing belt 352 on the thigh and calf, avoiding redness and swelling. At the same time, the buffer spring 355 on the second sliding pin 353 can reduce the vibration of the first splint 31 and the second splint 32.

[0049] The above shows and describes 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bone rehabilitation power-assisted walking device, comprising a foot power-assisted device (2) and a knee joint power-assisted device (3), wherein a connecting belt (1) is provided between the foot power-assisted device (2) and the knee joint power-assisted device (3), and the foot power-assisted device (2) and the knee joint power-assisted device (3) are connected via the connecting belt (1), characterized in that: The foot assisting device (2) comprises a placement plate (21), a hinge assembly (25) is arranged on the bottom side of the placement plate (21), and assisting assemblies (26) are arranged on both sides of the placement plate (21). The hinge assembly (25) is arranged at the bottom of the assisting assembly (26). When the foot is parallel to the ground, the hinge assembly (25) presses the assisting assembly (26) so that the hinge assembly (25) and the placement plate (21) are arranged in parallel. At the same time, the assisting assembly (26) stores force on the hinge assembly (25). When the foot is lifted, the assisting assembly (26) drives the hinge assembly (25) to rotate on the bottom side of the placement plate (21), thereby assisting the placement plate (21). At the same time, the hinge assembly (25) is in a triangular support shape with the help of the assisting assembly (26).

2. The bone rehabilitation walking aid according to claim 1, characterized in that: The foot assist device (2) comprises a first fixing belt (22) and a fixing groove (23), wherein two ends of the first fixing belt (22) are fixed to two sides of a placement plate (21) close to the center, the fixing groove (23) is opened on the top side of the placement plate (21), and the fixing groove (23) is located at the bottom of the first fixing belt (22), and the first fixing belt (22) is used to fix the sole of the foot in the fixing groove (23).

3. The bone rehabilitation walking aid device according to claim 1, characterized in that: The hinge assembly (25) comprises a ground contact plate (251), an ankle support plate (253) and a second fixing belt (255); the ground contact plate (251) is hinged to the bottom side of the placement plate (21); the top side of the ground contact plate (251) is provided with two first sliding grooves away from the hinge between the ground contact plate (251) and the placement plate (21); the two first sliding grooves are arranged in parallel; a first sliding block (254) is slidably installed in the first sliding groove; The bottom side is fixed on two first sliding blocks (254), and the two ends of the second fixing belt (255) are fixedly connected to the two sides of the ankle support plate (253) near the center position. Second sliding grooves are arranged on both sides of the ankle support plate (253), and the placement plate (21) is provided with a notch, and the notch is close to the two first sliding grooves. The inner walls on both sides of the notch are provided with first sliding pins. The second sliding groove cooperates with the first sliding pin to enable the ankle support plate (253) to slide on the placement plate (21).

4. The bone rehabilitation walking aid device according to claim 3, characterized in that: A support plate (252) is hinged at the center position of the bottom side of the placement plate (21), and the support plate (252) is hinged on the ankle support plate (253) away from the placement plate (21) and the hinged portion of the support plate (252). When the ankle support plate (253) slides on the ground contact plate (251), the second sliding grooves on both sides of the ankle support plate (253) slide along the placement plate (21), so that the placement plate (21) limits the ankle support plate (253).

5. The bone rehabilitation walking aid device according to claim 1, characterized in that: A support bar (24) is fixedly installed on the top side of the placement plate (21) near two corners, and the power-assisting assembly (26) comprises a threaded rod (261), the threaded rod (261) is hinged on one side of the ground contact plate (251), a sliding ring (262) is slidably installed on the threaded rod (261), and the sliding ring (262) rotates on the support bar (24), and an extrusion nut (263) is threadedly connected to the threaded rod (261).

6. The bone rehabilitation walking aid device according to claim 5, characterized in that: A booster spring (264) is sleeved on the threaded rod (261), and the booster spring (264) is located between the sliding ring (262) and the extrusion nut (263). The booster spring (264) is squeezed by rotating the extrusion nut (263), thereby adjusting the tension of the booster spring (264).

7. The bone rehabilitation walking aid device according to claim 1, characterized in that: The knee joint assist device (3) comprises a first splint (31) and a second splint (32), wherein the first splint (31) and the second splint (32) are hinged together, and a torsion spring (33) is provided at the hinge between the first splint (31) and the second splint (32), wherein the torsion spring (33) assists the first splint (31) and the second splint (32).

8. The bone rehabilitation walking aid device according to claim 7, characterized in that: A knee fixing belt (34) is hingedly connected at the hinged point between the first splint (31) and the second splint (32); the hinged point between the first splint (31) and the second splint (32) of the knee fixing belt (34) is fixed to the back of the knee joint.

9. The bone rehabilitation assist walking device according to claim 8, characterized in that: The first splint (31) and the second splint (32) are both provided with a sliding assembly (35), and the sliding assembly (35) includes a receiving plate (351), and the top side of the receiving plate (351) is fixedly connected with a widened fixing belt (352), and the widened fixing belt (352) fixes the thigh and the calf, and the four corners of the bottom side of the receiving plate (351) are fixedly installed with second sliding pins (353), and the first splint (31) and the second splint (32) are both provided with two sliding holes, and the two sliding holes are arranged in parallel.

10. The bone rehabilitation walking aid device according to claim 9, characterized in that: A second sliding block (354) is slidably mounted on the second sliding pin (353), and the two second sliding blocks (354) slide in the sliding hole. A buffer spring (355) is sleeved on the second sliding pin (353), and the buffer spring (355) is located between the receiving plate (351) and the second sliding block (354). The buffer spring (355) is used to reduce vibration to the thigh and calf.

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