Gait rehabilitation instrument

Abstract

The utility model relates to a gait rehabilitation instrument which comprises a rack, a gait leg assembly arranged on the rack, a pedal arranged on the gait leg assembly and a knee baffle installed on the gait leg assembly and located above the pedal. The number of the gait leg assemblies, the pedal plates and the knee baffles is two, and the gait leg assemblies are located on the inner sides of the pedal plates and the knee baffles. The two gait leg assemblies are located in the middle and arranged side by side, the pedal and the knee baffle are located on the outer side of the rehabilitation mechanism respectively, compared with a traditional gait rehabilitation instrument with a foot support on the inner side, the distance between the two legs is smaller in the using state, the legs are in the close-to-close state, the normal posture of people in the walking process is better met, and the rehabilitation effect is better. Secondary injury to the patient is avoided, and rehabilitation training can be better carried out on the patient.

Description

Technical Field

[0001] This utility model belongs to the field of rehabilitation equipment, specifically relating to a gait rehabilitation device. Background Technology

[0002] Patients with central nervous system damage and musculoskeletal disorders are unable to move normally, and in severe cases, they may require prolonged bed rest, losing their ability to care for themselves. This causes immense physical and psychological suffering for both the patient and their caregivers, resulting in a low quality of life and well-being. Physical examinations and daily activities are extremely difficult for paralyzed patients, requiring manual assistance, which is very labor-intensive and can easily cause discomfort. If patients can regain some degree of mobility, it not only improves their own quality of life but also reduces the overall burden on their families and society. To achieve this, patients, regardless of whether their condition is mild or severe, need to undergo timely rehabilitation exercises; otherwise, serious complications may arise, further reducing their quality of life and well-being.

[0003] Utility model patent CN222533599U discloses a rehabilitation training robot that uses two motors to drive two multi-link mechanisms to move the user's hip and knee joints, thereby achieving rehabilitation training. However, in this technical solution, the multi-link mechanisms for the left and right legs are set separately, meaning the patient's legs are spread apart during rehabilitation training. This differs from a normal walking posture, does not conform to ergonomic design, and may lead to leg injuries after long-term use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a gait rehabilitation device that allows the legs to be together when in use, and the walking posture is consistent with the normal posture, which is more in line with ergonomic design.

[0005] The technical solution adopted in this utility model is:

[0006] A gait rehabilitation device includes a frame, a gait leg assembly mounted on the frame, a foot pedal mounted on the gait leg assembly, and a knee guard mounted on the gait leg assembly and located above the foot pedal. The gait leg assembly, foot pedal, and knee guard are arranged in two sets, with the gait leg assembly located inside the foot pedal and the knee guard.

[0007] Furthermore, the gait leg assembly includes a support plate, a rocker arm located below the support plate, a lower connecting rod mounted below one end of the rocker arm via a pivot, and an upper connecting rod disposed between the end of the support plate and the rocker arm. A knee guard and a foot pedal are fixedly disposed at the upper and lower ends of the lower connecting rod, respectively. The other end of the support plate is fixedly connected to a column fixed at the rear of the frame, and the other end of the rocker arm is connected to a drive mechanism.

[0008] Furthermore, a sliding groove is provided at the end of the support plate, the upper end of the upper connecting rod cooperates with the sliding groove, and its lower end is connected to the rocker arm through a rotating shaft.

[0009] Furthermore, a support arm is connected to the lower side of the rocker arm, and a buffer part, which is a shock-absorbing spring, is provided between the support arm and the lower connecting rod.

[0010] Furthermore, the drive mechanism includes a motor fixedly mounted inside the column and a crank mounted on the output shaft of the motor, with the other end of the crank connected to the other end of the rocker arm via a rotating shaft.

[0011] Furthermore, a horizontal slide rail A is provided on the frame, and a slider is slidably mounted on the slide rail A. The slider has a vertical groove. A slide rail B that matches the groove is provided on the outside of the foot pedal. The foot pedal and the slide rail B are rotatably connected by a pin.

[0012] Furthermore, a human lifting device is also provided on the frame. The lifting device includes a mounting frame fixedly mounted on the frame, a lifting rotating component mounted on the mounting frame via bearings, lifting arms fixedly mounted on the left and right ends of the lifting rotating component, a rotating arm fixedly mounted on the lifting rotating component, and a push rod mounted on the frame. One end of the push rod is connected to the frame via a rotating shaft, and the other end is connected to the rotating arm.

[0013] Furthermore, a baffle is provided behind the foot pedal, which, along with the knee baffle, is located on the front and back sides of the body, respectively.

[0014] The positive effects of this utility model are:

[0015] This invention features two sets of gait leg components positioned side-by-side in the middle, with the foot pedals and knee guards located on the outer sides of the rehabilitation mechanism. Compared to traditional gait rehabilitation devices with foot supports on the inner side, this design results in a smaller distance between the legs during use, bringing them closer together. This better reflects the normal walking posture, preventing secondary injury to the patient and facilitating better rehabilitation training. Furthermore, the gait leg components have undergone a redesign, employing a rocker arm, upper connecting rod, lower connecting rod, and support plate. The support plate and upper connecting rod utilize a sliding groove, allowing the upper end of the upper connecting rod to move within the groove. This structure better simulates walking posture. The foot support is connected to the frame via horizontal and vertical cross-slider guide rails, ensuring greater stability and reliability during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the gait leg assembly of this utility model;

[0018] Figure 3 This is an isometric drawing of the gait leg assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the rocker arm of this utility model;

[0020] Figure 5 This is a schematic diagram showing the connection between the foot pedal and the slide rail of this utility model. Detailed Implementation

[0021] First, it should be noted that in the description of this utility model, "forward" refers to the area in front of the user, and "rearward" refers to the area behind the user. (See attached diagram) Figure 1-5 As shown, this utility model discloses a gait rehabilitation device, including a frame 1, a column 2 disposed in front of the frame 1, a gait leg assembly disposed on the column 2, a foot pedal 6 and a knee guard 7 disposed on the gait leg assembly, with the knee guard 7 located above the foot pedal 6. Two sets of gait leg assemblies are arranged side-by-side, each gait leg assembly having a foot pedal 6 and a knee guard 7, and the gait leg assembly being located inside the corresponding foot pedal 6 and knee guard 7.

[0022] The gait leg assembly includes a support plate 5 fixed to a column 2, a rocker arm 3 located below the support plate 5, a lower connecting rod 4 rotatably mounted on one end of the rocker arm 3 via a pivot, and an upper connecting rod 18 mounted between the end of the support plate 5 and the end of the rocker arm 3. The lower end of the upper connecting rod 18 is also connected to the rocker arm 3 via a pivot, and it can share the same pivot as the connecting pivot between the rocker arm 3 and the lower connecting rod 4. An arc-shaped groove 13 is provided at the end of the support plate 5, and a pin is provided at the upper end of the upper connecting rod 18 to cooperate with the groove 13, allowing the upper end of the upper connecting rod 18 to move along the groove 13. The design of the groove 13 better simulates the human walking state, is more ergonomic, and is more conducive to rehabilitation.

[0023] The knee guard 7 and the foot pedal 6 are fixedly installed at the upper and lower ends of the lower connecting rod 4, respectively. The knee guard 7 is located in front of the human body, and a guard is provided on the foot pedal 6 and located behind the human body. The guard and the knee guard 7 are located on the front and back sides of the human body, respectively, which can limit the position of the lower leg and help prevent the person from falling over.

[0024] Preferably, a support arm 20 is provided on the lower side of the rocker arm 3, and a buffer part 12 is provided between the support arm 20 and the middle position of the lower connecting rod 4. The buffer part 12 is a shock-absorbing spring. When the user's leg moves to the foremost position under the action of the rocker arm 3, the shock-absorbing spring plays a buffering role to avoid injury to the knee. This is more in line with ergonomic design and helps to improve the comfort during use.

[0025] A drive mechanism is provided inside the column 2, including a motor 11 fixedly installed inside the column 2 and a crank 19 installed on the output shaft of the motor 11. The crank 19 is connected to the other end of the rocker arm 3 through a rotating shaft.

[0026] Preferably, a horizontal slide rail A21 is provided on the frame 1 at a position corresponding to the foot pedal 6. A corresponding slider 22 is provided on the slide rail A21, and a vertical groove is provided on the slider 22. A slide rail B23 is connected to the side of the foot pedal 6 by a pin, and the slide rail B23 is adapted to the groove. It should be noted that the slide rail B23 can rotate around the pin. The combination of the horizontal slide rail and the vertical groove limits the foot pedal 6, which helps to improve the stability of the foot pedal 6 and improve the safety of use.

[0027] As a further improvement of this utility model, a human body lifting device is also provided on the column 2 of the frame 1, including a mounting bracket fixedly mounted on the column 2, a lifting rotating component 17 mounted on the mounting bracket via bearings, lifting arms 8 fixedly mounted on the left and right ends of the lifting rotating component 17, a rotating arm 16 fixedly mounted on the lifting rotating component 17, and a push rod 14 mounted on the column 2. The push rod 14 can be an electric push rod, with one end rotatably connected to the column 2 via a rotating shaft, and the other end rotatably connected to the rotating arm 16. The push rod 14 pushes the rotating arm 16 to swing, thereby driving the lifting arm 8 to swing, and with the help of a seat cushion (not shown in the figure), the human body can be lifted. The design of the seat cushion can be referred to in the utility model patent with publication number CN222533599U, and will not be described in detail here.

[0028] Preferably, handrails are provided on the frame 1 and on the left and right sides of the column 2, respectively, with cushions 9 on the inner side of each handrail and the inner side of the column 2. A limit plate 10 is provided on one handrail via a bearing, and the other end of the limit plate 10 can overlap with the other handrail. Cushions 9 are also provided on the inner side of the limit plate 10. The presence of cushions at all four positions (front, back, left, and right) serves two purposes: firstly, to provide protection against accidental falls; and secondly, to improve user comfort.

[0029] This invention creatively positions the gait leg components on the inner sides of the foot pedal 6 and knee guard 7. The two gait leg components are positioned side-by-side and close together, effectively reducing the distance between the legs. During use, the gait of the legs more closely resembles the shape of a normal person, achieving better rehabilitation results. Simultaneously, the gait leg components have been redesigned. The upper connecting rod 18 and the support plate 5 are movable. The upper end of the upper connecting rod 18 can slide within the groove 13 of the support plate 5. Combined with the slide rail and groove on one side of the foot pedal 6, the running trajectory of the foot pedal 6 and knee guard 7 also more closely resembles the normal walking state.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gait rehabilitation device, characterized in that... It includes a frame (1), a gait leg assembly mounted on the frame (1), a foot pedal (6) mounted on the gait leg assembly, and a knee guard (7) mounted on the gait leg assembly and located above the foot pedal (6). The gait leg assembly, foot pedal (6), and knee guard (7) are provided in two sets, with the gait leg assembly located inside the foot pedal (6) and knee guard (7). The gait leg assembly includes a support plate (5), a rocker arm (3) located below the support plate (5), a lower connecting rod (4) mounted on one end of the rocker arm (3) via a pivot, and an upper connecting rod (18) disposed between the end of the support plate (5) and the rocker arm (3). A knee guard (7) and a foot pedal (6) are fixedly disposed at the upper and lower ends of the lower connecting rod (4), respectively. The other end of the support plate (5) is fixedly connected to a column (2) fixed behind the frame (1), and the other end of the rocker arm (3) is connected to a drive mechanism.

2. The gait rehabilitation device according to claim 1, characterized in that... A groove (13) is provided at the end of the support plate (5). The upper end of the upper connecting rod (18) is engaged with the groove (13), and its lower end is connected to the rocker arm (3) through a rotating shaft.

3. The gait rehabilitation device according to claim 1, characterized in that... A support arm (20) is connected to the lower side of the rocker arm (3), and a buffer part (12) is provided between the support arm (20) and the lower connecting rod (4). The buffer part (12) is a shock-absorbing spring.

4. A gait rehabilitation device according to claim 1, characterized in that... The drive mechanism includes a motor (11) fixedly installed in the column (2) and a crank (19) installed on the output shaft of the motor (11). The other end of the crank (19) is connected to the other end of the rocker arm (3) through a rotating shaft.

5. A gait rehabilitation device according to claim 1, characterized in that... On the frame (1), there is a horizontal slide rail A (21), and a slider (22) is slidably arranged on the slide rail A (21). The slider (22) is provided with a vertical slide groove. On the outside of the foot pedal (6), there is a slide rail B (23) that matches the slide groove. The foot pedal (6) and the slide rail B (23) are rotatably connected by a pin.

6. A gait rehabilitation device according to claim 1, characterized in that... A human lifting device is also provided on the frame (1). The lifting device includes a mounting frame fixedly mounted on the frame (1), a lifting rotating part (17) mounted on the mounting frame via bearings, lifting arms (8) fixedly mounted on the left and right ends of the lifting rotating part (17), a rotating arm (16) fixedly mounted on the lifting rotating part (17), and a push rod (14) mounted on the frame (1). One end of the push rod (14) is connected to the frame (1) via a rotating shaft, and the other end is connected to the rotating arm (16).

7. A gait rehabilitation device according to claim 1, characterized in that... A baffle is provided behind the foot pedal (6), and the baffle and the knee baffle (7) are located on the front and back sides of the human body, respectively.

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