Ankle joint rehabilitation device with adjustable inclination

Abstract

The utility model discloses a slope-adjustable ankle joint rehabilitation device, and relates to the technical field of ankle joint rehabilitation devices.The slope-adjustable ankle joint rehabilitation device comprises a U-shaped leg placing frame, the leg placing frame is composed of two vertical plates and a transverse plate, and the two vertical plates and the transverse plate are arranged in parallel. A rotating shaft is rotationally connected between the two vertical plates of the leg placing frame, a movable groove extending out of the lower side surface of the leg placing frame transverse plate is formed in the upper side surface of the leg placing frame transverse plate, the outer surface of the rotating shaft is rotationally sleeved with a connecting sleeve, and the upper side surface of the connecting sleeve extends out of the upper side surface of the leg placing frame transverse plate through the movable groove; according to the storage device, the two stabilizing plates can be rotated after being stored, so that the two stabilizing plates make contact with each other, then the whole device is in a regular cuboid shape, a user can conveniently store the whole device, and the possibility that due to the fact that the size is too large or the appearance is irregular, the occupied space is large, and accidental collision exists is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ankle joint rehabilitation device technology, and in particular to an ankle joint rehabilitation device with adjustable inclination. Background Technology

[0002] The ankle joint is an important weight-bearing and movement joint in the human body, playing a vital role in standing and walking. Because the ankle joint bears a lot of weight during exercise and is particularly prone to injury due to its structural characteristics, many people lose their normal mobility each year due to sports injuries, strokes, ankle diseases, and other reasons.

[0003] For example, Chinese utility model patent with patent publication number CN215310044U includes a base, a motion mechanism disposed on the base, compression springs disposed on both sides of the motion mechanism, and a foot fixing mechanism disposed above the motion mechanism; wherein, the motion mechanism includes a support frame fixed on the base, a positioning block and a limiting block movably fixed inside the support frame, the foot fixing mechanism is fixed on the positioning block, and the positioning block and the limiting block are movably connected by a telescopic rod.

[0004] This patent allows for simple and convenient home-based ankle rehabilitation exercises, with low cost and wide applicability. However, due to its overall height, it is inconvenient for patients to perform rehabilitation activities while lying in bed. In addition, most of its structures are fixed, and the entire device cannot be folded and stored after use. Although it can be used for home rehabilitation, it still takes up a lot of space when stored, which is inconvenient. In view of this, we propose an ankle rehabilitation device with adjustable inclination. Utility Model Content

[0005] The purpose of this invention is to provide an ankle joint rehabilitation device with adjustable inclination to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ankle joint rehabilitation device with adjustable inclination, including a leg support frame, the leg support frame being U-shaped, the leg support frame consisting of two vertical plates and one horizontal plate, a rotating shaft rotatably connecting the two vertical plates of the leg support frame, an movable groove extending from the lower surface of the upper side surface of the horizontal plate of the leg support frame, a connecting sleeve rotatably fitted on the outer surface of the rotating shaft, the upper surface of the connecting sleeve extending from the upper surface of the horizontal plate of the leg support frame through the movable groove, a foot support plate fixedly connected to the upper surface of the connecting sleeve, an elastic band provided on the foot support plate, an arc-shaped clearance groove provided on the rear surface of the foot support plate, stabilizing plates rotatably connected to the lower surfaces of the two vertical plates of the leg support frame respectively, and an ankle joint movable component provided on the lower surface of the leg support frame.

[0007] Preferably, the ankle joint movement assembly includes a mounting plate, which is slidably connected to the lower surface of the leg support frame cross plate. A forward and reverse motor is fixedly connected to the rear surface of the mounting plate, and a first bevel gear is fixedly connected to the output end of the forward and reverse motor. A second bevel gear is sleeved on the outer surface of the rotating shaft.

[0008] Preferably, the first bevel gear meshes with the second bevel gear, a threaded sleeve is fixedly connected to the front surface of the mounting plate, and a limiting groove is formed on the lower surface of the leg placement bracket cross plate.

[0009] Preferably, the upper surface of the threaded sleeve is slidably connected to the inside of the limiting groove, and the lower surface of the leg placement frame is fixedly connected to an installation sleeve. A threaded rod is rotatably fitted inside the installation sleeve, and the front and rear sections of the threaded rod extend out of the left and right sides of the installation sleeve, respectively.

[0010] Preferably, the threaded sleeve is threaded onto the outer surface of the threaded rod, and a first angle limiting groove is provided on the right side surface of the right vertical plate of the leg placement frame.

[0011] Preferably, the inner wall of the first angle limiting groove is provided with a second angle limiting groove, the inner wall of the second angle limiting groove is provided with a third angle limiting groove, and the right end of the rotating shaft rotates through the right surface of the right vertical plate of the leg placement frame.

[0012] Preferably, a mounting plate is fixedly connected to the right end of the rotating shaft, and a second threaded rod is provided at an off-center position on the right side surface of the mounting plate.

[0013] Preferably, the left end of the second threaded rod extends through the right side surface of the mounting plate, and the right end of the second threaded rod extends into the interior of the first angle limiting groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This adjustable-angle ankle rehabilitation device uses an arc-shaped clearance groove to prevent the foot placement plate from contacting the lower surface of the leg placement frame's horizontal plate. The U-shaped design of the leg placement frame itself provides space for the foot placement plate to rotate and be stored. After storage, rotating the two stabilizing plates brings them into contact, resulting in a neat rectangular shape that is easy for users to store. This avoids the possibility of the device taking up too much space or being accidentally bumped due to its large size or irregular appearance.

[0016] 2. This adjustable-angle ankle rehabilitation device can disengage the first bevel gear and the second bevel gear when the patient is able to rotate voluntarily, thereby preventing the forward and reverse motors from hindering the patient's ankle movement. Furthermore, the first angle limiting groove, the second angle limiting groove, and the third angle limiting groove can be used to limit the rotation angle of the foot placement plate, preventing the patient's ankle movement from being too large and causing re-injury. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the structure of an ankle joint rehabilitation device with adjustable inclination according to the present invention;

[0019] Figure 2 This is a schematic diagram of the arc-shaped clearance groove of this utility model;

[0020] Figure 3 This is a schematic diagram of the bottom of the leg support frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation disk of this utility model;

[0022] Figure 5 This is a schematic diagram of the first angle limiting groove of this utility model;

[0023] Figure 6 This is a schematic diagram of the second angle limiting groove of this utility model.

[0024] Reference numerals: 1. Leg rest; 2. Rotating shaft; 3. Movable groove; 4. Connecting sleeve; 5. Foot rest plate; 6. Elastic band; 7. Arc-shaped clearance groove; 8. Stabilizing plate; 9. Mounting plate; 10. Forward and reverse motor; 11. First bevel gear; 12. Second bevel gear; 13. Threaded sleeve; 14. Limiting groove; 15. Mounting sleeve; 16. Threaded rod; 17. First angle limiting groove; 18. Second angle limiting groove; 19. Third angle limiting groove; 20. Mounting plate; 21. Second threaded rod. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Please see Figure 1-6This utility model provides a technical solution: an ankle joint rehabilitation device with adjustable inclination, including a leg support frame 1. The leg support frame 1 is U-shaped and consists of two vertical plates and one horizontal plate. A rotating shaft 2 is rotatably connected between the two vertical plates of the leg support frame 1. The upper surface of the horizontal plate of the leg support frame 1 has a movable groove 3 extending to its lower surface. A connecting sleeve 4 is rotatably fitted on the outer surface of the rotating shaft 2. The upper surface of the connecting sleeve 4 extends through the movable groove 3 to the upper surface of the horizontal plate of the leg support frame 1. A foot support plate 5 is fixedly connected to the upper surface of the connecting sleeve 4. An elastic band 6 is provided on the foot support plate 5. The rear surface of the foot support plate 5 has... The leg support 1 has an arc-shaped clearance groove 7. The lower surfaces of the two vertical plates of the leg support 1 are rotatably connected to stabilizing plates 8. An ankle joint movable component is provided on the lower surface of the leg support 1. The arc-shaped clearance groove 7 prevents the foot placement plate 5 from contacting the structure of the lower surface of the horizontal plate of the leg support 1. The U-shaped design of the leg support 1 itself provides space for the rotation and storage of the foot placement plate 5. After storage, the two stabilizing plates 8 can be rotated to make them contact each other, so that the whole device presents a regular cuboid shape. This makes it easy for users to store the whole device and avoids the possibility of taking up too much space or being accidentally bumped due to its large size or irregular appearance.

[0027] Furthermore, the ankle joint mobility assembly includes a mounting plate 9, which is slidably connected to the lower surface of the leg support frame 1. A forward / reverse motor 10 is fixedly connected to the rear surface of the mounting plate 9, and a first bevel gear 11 is fixedly connected to the output end of the forward / reverse motor 10. A second bevel gear 12 is sleeved on the outer surface of the rotating shaft 2, and the first bevel gear 11 and the second bevel gear 12 are meshed together. A threaded sleeve 13 is fixedly connected to the front surface of the mounting plate 9, and a limit groove 14 is formed on the lower surface of the leg support frame 1. The upper surface of sleeve 13 is slidably connected to the inside of the limiting groove 14. An mounting sleeve 15 is fixedly connected to the lower surface of the horizontal plate of the leg support frame 1. A threaded rod 16 is rotatably mounted inside the mounting sleeve 15. The front and rear sections of the threaded rod 16 extend out of the left and right sides of the mounting sleeve 15, respectively. The threaded sleeve 13 is threaded onto the outer surface of the threaded rod 16. A first angle limiting groove 17 is formed on the right side surface of the right vertical plate of the leg support frame 1. A second angle limiting groove 18 is formed on the inner wall of the first angle limiting groove 17. The inner wall of 8 is provided with a third angle limiting groove 19. The right end of the rotating shaft 2 rotates through the right surface of the right vertical plate of the leg placement bracket 1. The right end of the rotating shaft 2 is fixedly connected to the mounting plate 20. A second threaded rod 21 is provided at an off-center position on the right surface of the mounting plate 20. The left end of the second threaded rod 21 is threaded through the right surface of the mounting plate 20. The right end of the second threaded rod 21 extends into the interior of the first angle limiting groove 17. The first bevel gear 11 is driven to rotate by the forward and reverse motor 10. After the first bevel gear 11 rotates, it rotates in the same direction as the first bevel gear 11. The first bevel gear 11 and the second bevel gear 12 drive the rotating shaft 2 to rotate within a small range, which can drive the patient's foot to rotate within a small range, thereby moving the ankle joint. When the patient can rotate voluntarily, the first bevel gear 11 and the second bevel gear 12 can be disengaged, thus preventing the forward and reverse motors from hindering the patient's ankle movement. Furthermore, the first angle limiting groove 17, the second angle limiting groove 18 and the third angle limiting groove 19 can be used to limit the rotation angle of the foot placement plate 5, preventing the patient's ankle movement from being too large and causing re-injury.

[0028] In this paper, the first angle limiting groove 17, the second angle limiting groove 18, and the third angle limiting groove 19 are all fan-shaped grooves. The opening angle of the fan-shaped groove of the first angle limiting groove 17 is greater than that of the second angle limiting groove 18, and the opening angle of the second angle limiting groove 18 is greater than that of the third angle limiting groove 19. The forward and reverse motor 10 mentioned in this paper is an existing mature structure that can drive in both directions. It will not be elaborated on further here.

[0029] Working principle: When the footrest 5 needs to be folded and stored to reduce its storage space, the second threaded rod 21 is rotated, causing it to move outward and disengage from the first angle limiting groove 17. At this point, the rotating shaft 2 can rotate at a larger angle. The footrest 5 is then rotated rearward, causing it to retract between the two vertical plates of the leg rest 1. The arc-shaped clearance groove 7 prevents the footrest 5 from contacting the lower surface of the horizontal plate of the leg rest 1. Subsequently, the two stabilizing plates 8 are rotated... The eight-phase contact design results in a neat rectangular shape for easy storage. When a patient's ankle injury is severe and they are unable to move independently, the forward and reverse motor 10 drives the first bevel gear 11 to rotate. The first bevel gear 11, in conjunction with the second bevel gear 12, drives the rotating shaft 2 to reciprocate within a small range, thus allowing the patient's foot to rotate slightly and mobilizing the ankle joint. Once the patient's ankle has recovered and can rotate independently, the second threaded rod 21 can be rotated inwards, allowing the second threaded rod 21 to move further inwards. The threaded rod 16 is inserted into the third angle limiting groove 19 and rotated. Since the threaded rod 16 is rotatably connected inside the mounting sleeve 15, its position cannot be changed. Furthermore, the threaded sleeve 13's movement trajectory is restricted by the limiting groove 14. Therefore, when the threaded rod 16 rotates, it will drive the threaded sleeve 13 to move horizontally. The movement of the threaded sleeve 13 will naturally drive the mounting plate 9 and the forward / reverse motor 10 to move. After the forward / reverse motor 10 moves, it will disengage the first bevel gear 11 from the second bevel gear 12. At this point, the patient can move their ankle joint using their own strength. Simultaneously, the rotation of the rotating shaft 2 is utilized... Driven by the mounting plate 20, the second threaded rod 21 is installed at the eccentric position of the mounting plate 20. Therefore, when the mounting plate 20 rotates, it drives the second threaded rod 21 to perform a circular motion. At this time, the second threaded rod 21 is inside the third angle limiting groove 19. After the second threaded rod 21 rotates a certain angle, it will contact the inner wall of the third angle limiting groove 19. Thus, the second threaded rod 21 indirectly restricts the range of motion of the foot placement plate 5. As the patient gradually recovers, the second threaded rod 21 can be gradually rotated out, thereby successively disengaging from the third angle limiting groove 19 and the second angle limiting groove 18, gradually increasing the range of motion of the ankle.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An ankle joint rehabilitation device with adjustable inclination, characterized in that: The system includes a leg support frame (1), which is U-shaped and consists of two vertical plates and a horizontal plate. A rotating shaft (2) is rotatably connected between the two vertical plates of the leg support frame (1). The upper surface of the horizontal plate of the leg support frame (1) has a movable groove (3) extending to its lower surface. A connecting sleeve (4) is rotatably fitted on the outer surface of the rotating shaft (2). The upper surface of the connecting sleeve (4) extends to the upper surface of the horizontal plate of the leg support frame (1) through the movable groove (3). A foot placement plate (5) is fixedly connected to the upper surface of the connecting sleeve (4). An elastic band (6) is provided on the foot placement plate (5). An arc-shaped clearance groove (7) is provided on the rear surface of the foot placement plate (5). A stabilizing plate (8) is rotatably connected to the lower surfaces of the two vertical plates of the leg support frame (1). An ankle joint movable component is provided on the lower surface of the leg support frame (1).

2. The ankle joint rehabilitation device with adjustable inclination according to claim 1, characterized in that: The ankle joint movement assembly includes a mounting plate (9), which is slidably connected to the lower surface of the cross plate of the leg support frame (1). A forward and reverse motor (10) is fixedly connected to the rear surface of the mounting plate (9). A first bevel gear (11) is fixedly connected to the output end of the forward and reverse motor (10). A second bevel gear (12) is sleeved on the outer surface of the rotating shaft (2).

3. The ankle joint rehabilitation device with adjustable inclination according to claim 2, characterized in that: The first bevel gear (11) meshes with the second bevel gear (12), and a threaded sleeve (13) is fixedly connected to the front surface of the mounting plate (9). A limit groove (14) is opened on the lower surface of the cross plate of the leg placement bracket (1).

4. The ankle joint rehabilitation device with adjustable inclination according to claim 3, characterized in that: The upper surface of the threaded sleeve (13) is slidably connected to the inside of the limiting groove (14). The lower surface of the leg placement bracket (1) is fixedly connected to the mounting sleeve (15). The mounting sleeve (15) is rotatably fitted with a threaded rod (16). The front and rear sections of the threaded rod (16) extend out of the left and right sides of the mounting sleeve (15).

5. The ankle joint rehabilitation device with adjustable inclination according to claim 4, characterized in that: The threaded sleeve (13) is threaded onto the outer surface of the threaded rod (16), and the right side surface of the right vertical plate of the leg placement frame (1) is provided with a first angle limiting groove (17).

6. The ankle joint rehabilitation device with adjustable inclination according to claim 5, characterized in that: The inner wall of the first angle limiting groove (17) is provided with a second angle limiting groove (18), and the inner wall of the second angle limiting groove (18) is provided with a third angle limiting groove (19). The right end of the rotating shaft (2) rotates through the right side surface of the right vertical plate of the leg placement frame (1).

7. The ankle joint rehabilitation device with adjustable inclination according to claim 6, characterized in that: The right end of the rotating shaft (2) is fixedly connected to a mounting plate (20), and a second threaded rod (21) is provided at the offset position on the right side surface of the mounting plate (20).

8. The ankle joint rehabilitation device with adjustable inclination according to claim 7, characterized in that: The left end of the second threaded rod (21) is threaded through the right side surface of the mounting plate (20), and the right end of the second threaded rod (21) extends into the interior of the first angle limiting groove (17).

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