Auxiliary rehabilitation training device for knee joint motor injury

Abstract

The invention discloses an auxiliary rehabilitation training device for knee joint motor injury. The auxiliary rehabilitation training device comprises a first fixing ring, a second fixing ring, an electric push rod, a microcontroller, a first screw rod, a second screw rod, a driving plate and a limiting plate. Square rods are symmetrically arranged on the two sides of the first fixing ring. Cylinders are symmetrically arranged at the rear end of the square rod, mounting grooves are formed in the side walls of the square rod, and mounting blocks are arranged at the upper end of the square rod; a microcontroller is fixedly mounted on the wall body of the square rod on one side; square rods I are symmetrically arranged on the two sides of the fixing ring; a fluted disc movably connected with a cylinder is integrally arranged at the front end of the square rod I; the driving plate is mounted in the mounting groove in a sliding manner; the lower end of the driving plate is provided with a rack movably connected with a gear, and the front portion of the lower end of the driving plate is integrally provided with an arc-shaped plate movably connected with a fluted disc. A square block is arranged on the rear wall body of the driving plate; one side of the square block is fixedly connected with an output shaft of the electric push rod, and the other side is provided with an elastic element connected with the adjusting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of medical rehabilitation equipment, and in particular to an auxiliary rehabilitation training device for knee joint sports injuries. Background Art

[0002] As the largest and most complex flexor-septal joint in the human body, the knee joint plays a crucial role in weight bearing, load transfer, and participation in movement. However, due to its structural characteristics and high range of motion, the knee joint is also relatively susceptible to injury. Once damaged, recovery is often long and difficult, requiring specialized rehabilitation training to accelerate recovery and improve the quality of functional recovery. At present, although there are some assistive devices for knee joint rehabilitation on the market, these devices have many limitations during use: Most existing knee rehabilitation devices still rely on patients to perform knee flexion rehabilitation exercises independently. Although the rehabilitation is more proactive, the knee joint is severely damaged and has limited knee joint movement capacity, making it difficult to perform passive rehabilitation training with the help of existing auxiliary rehabilitation devices. The knee joint rehabilitation device in the prior art has a fixed angle for assisting the patient to flex the knee, which makes it difficult to adjust the movement angle according to the patient's recovery status and adapt to the patient's different stages of rehabilitation training; Therefore, the present invention discloses an auxiliary rehabilitation training device for knee joint sports injuries to solve the above technical problems. Summary of the Invention

[0003] In order to solve the drawbacks of the existing technology, the present invention designs an auxiliary rehabilitation training device for knee joint sports injuries. By setting an electric push rod in conjunction with the rehabilitation device, switching between passive rehabilitation training and active rehabilitation training of the knee joint is achieved, and the adjustment of the knee flexion angle is achieved through the coordination of gears and racks to meet the training needs of patients at different rehabilitation stages.

[0004] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: A knee joint sports injury auxiliary rehabilitation training device, comprising: a first fixing ring, a second fixing ring, an electric push rod, a microcontroller, a first screw, a second screw, a driving plate, and a limit plate; Square rods are symmetrically arranged on both sides of the fixing ring; cylinders are symmetrically arranged at the rear end of the square rods, mounting grooves are provided on the side walls of the square rods, and mounting blocks are provided on the upper ends of the square rods; a microcontroller is fixedly installed on the wall of the square rod on one side; A square rod 1 is symmetrically arranged on both sides of the fixing ring; a toothed disc movably connected to a cylinder is integrally arranged at the front end of the square rod 1; The driving plate is slidably installed in the mounting groove; a rack is provided at the lower end of the driving plate for movable connection to the gear, an arc plate is integrally provided at the front of the lower end of the driving plate for movable connection to the gear disk, a slide groove is provided in the middle of the driving plate for sliding installation of a limit plate; a block is provided on the rear wall of the driving plate; one side of the block is fixedly connected to the output shaft of the electric push rod, and the other side is provided with an elastic element for connecting to the adjustment plate; the adjustment plate is slidably installed in the mounting groove, and the upper part of the adjustment plate is threadedly connected to the screw second The side wall of the chute is rotatably mounted with a screw rod 1; the limit plate is threadedly connected to the screw rod 1, and a baffle is provided at the lower portion of the limit plate to movably connect with a gear rod 1; The mounting block is provided with a limit groove inside for slidingly mounting the adjustment plate, and the mounting screw 2 is rotated inside the mounting block; Furthermore, the first and second fixing rings are made of Velcro material, which facilitates adaptive fixation of thighs and calves of different thicknesses; Furthermore, the microcontroller is connected to the electric push rod circuit; a display screen and operation buttons are provided on the microcontroller to facilitate rapid regulation of the telescopic stroke and telescopic rate of the electric push rod, and the telescopic stroke and rate are digitally displayed on the display screen; Furthermore, the middle portion of the toothed disc is rotatably connected to a cylinder; Furthermore, the inner wall array of the arc-shaped plate is provided with gears movably connected to the toothed disc. When the gears on the inner wall of the arc-shaped plate engage with the toothed disc, the square rods are collinear with each other, and the human leg is in a straight state. By controlling the gears on the inner wall of the arc-shaped plate to engage with the toothed disc, the rotation of the toothed disc is restricted. Furthermore, a protrusion is provided on the upper wall of the limit plate to interactively connect with a slide groove, and the protrusion is threadedly connected to a screw; a baffle is integrally provided on the lower wall of the limit plate; an arc-shaped groove is provided on the baffle; a gear is provided in the arc-shaped groove to movably connect with a toothed disc; the rotation of the toothed disc is limited by controlling the gear on the baffle to engage with the toothed disc; wherein, the distance between the baffle and the arc plate is the driving stroke for driving the toothed disc to rotate, and the driving stroke is adjusted by controlling the movement of the baffle through the screw to adjust the different rotation angles of the toothed disc; Furthermore, a plurality of scale lines are arranged in an array on the limit plate, and the distance between the scale lines corresponds to the rotation angle of the turntable; Furthermore, the output shaft of the electric push rod is a movable telescopic rod, that is, when the electric push rod is not powered, the output shaft of the electric push rod can be freely extended and retracted in the installation slot along with the block; Furthermore, the elastic element is always in a compressed state.

[0005] The beneficial effects of the present invention are: The present invention discloses an auxiliary rehabilitation training device for knee joint sports injuries, which can assist patients in freely switching between autonomous rehabilitation training and passive rehabilitation training, thereby resolving the problem that conventional rehabilitation devices rely on patients to independently perform knee flexion rehabilitation exercises. Although the rehabilitation is more proactive, the knee joint is severely damaged and has limited knee joint movement capacity, making it difficult to perform passive rehabilitation training with the aid of existing auxiliary rehabilitation devices. The first fixing ring cooperates with the second fixing ring to fix the thigh and calf of the human body respectively, so as to keep the gear disc located on both sides of the knee joint; and the first screw is rotated to adjust the distance between the baffle and the arc plate, thereby adjusting the length of the driving stroke, adjusting the rotation angle of the gear disc, and adjusting the movement angle of the patient's knee to adapt to patients at different rehabilitation stages and with different knee flexion abilities; and the baffle cooperates with the arc plate to protect the patient's knee, thereby preventing the knee from exceeding the standard movement angle during active or passive rehabilitation training, thereby preventing the knee from suffering rehabilitation damage; Passive rehabilitation training: The microcontroller controls the extension and retraction of the electric push rod, which drives the drive plate to reciprocate, and the drive plate drives the gear disc to rotate back and forth, driving the patient to perform passive knee flexion training. Active rehabilitation training: cut off the power to the electric push rod; then rotate the screw rod 2 to adjust the distance between the adjustment plate and the block, adjust the energy storage strength of the elastic element, and then the patient's calf rotates to perform knee flexion training independently; during the rehabilitation training process, the calf drives the gear plate to rotate, and the gear plate reversely drives the drive plate to compress the elastic element, providing resistance for the patient's knee flexion movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0007] Figure 1 The figure is a schematic diagram of the overall structure of a knee joint sports injury auxiliary rehabilitation training device; Figure 2 It is a front view structural diagram of a knee joint sports injury auxiliary rehabilitation training device; Figure 3 It is a partially enlarged structural schematic diagram A of a knee joint sports injury auxiliary rehabilitation training device; Figure 4 It is a partially enlarged structural schematic diagram B of a knee joint sports injury auxiliary rehabilitation training device; Figure 5 The present invention is a schematic diagram of the structure of a driving board of a knee joint sports injury auxiliary rehabilitation training device; Figure 6 The present invention is a structural schematic diagram of a limit plate of a knee joint sports injury auxiliary rehabilitation training device.

[0008] In the accompanying drawings, the components represented by the reference numerals are as follows: 1-Fixed ring 1, 101-square rod, 1011-mounting groove, 1012-cylinder, 102-mounting block, 1021-limiting groove, 2-microcontroller, 3-Fixed ring 2, 301-square rod 1, 302-toothed disc, 4-electric push rod, 401-output shaft, 5-drive plate, 501-block, 5001-square groove, 5002-rack, 5003-arc plate, 5011-elastic element, 5012-adjusting plate, 6-screw 1, 7-limiting plate, 701-bump, 702-block, 7021-arc groove, 8-screw 2. DETAILED DESCRIPTION

[0009] In order to solve the problems existing in the prior art of auxiliary rehabilitation training devices for knee joint sports injuries, the present invention discloses an auxiliary rehabilitation training device for knee joint sports injuries, comprising: a fixing ring 1, a fixing ring 3, an electric push rod 4, a microcontroller 2, a screw 6, a screw 8, a driving plate 5, and a limit plate 7; Square rods 101 are symmetrically arranged on both sides of the fixing ring 1; cylinders 1012 are symmetrically arranged at the rear end of the square rods 101, mounting grooves 1011 are provided on the side walls of the square rods 101, and mounting blocks 102 are provided on the upper ends of the square rods 101; a microcontroller 2 is fixedly installed on the wall of the square rods 101 on one side; The fixing ring is symmetrically provided with square rods 301 on both sides; the front end of the square rod 301 is integrally provided with a toothed disc 302 movably connected to the cylinder 1012; The driving plate 5 is slidably mounted in the mounting groove 1011; a rack 5002 is provided at the lower end of the driving plate 5 for movable connection to the gear, an arc plate 5003 is integrally provided at the front of the lower end of the driving plate 5 for movable connection to the gear plate 302, a sliding groove is provided in the middle of the driving plate 5 for sliding installation of the limit plate 7; a block 501 is provided on the rear wall of the driving plate 5; one side of the block 501 is fixedly connected to the output shaft 401 of the electric push rod 4, and the other side is provided with an elastic element 5011 for connecting to the adjustment plate 5012; the adjustment plate 5012 is slidably mounted in the mounting groove 1011, and the upper part of the adjustment plate 5012 is threadedly connected to the screw 28 The side wall of the chute is rotatably mounted with a screw rod 6; the limit plate 7 is threadedly connected to the screw rod 6, and a baffle 702 is provided at the lower portion of the limit plate 7 to movably connect to the gear 1; The mounting block 102 has a limit groove 1021 inside for slidingly mounting the adjustment plate 5012, and the mounting screw 8 is rotated inside the mounting block 102; The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0010] Example 1 In this embodiment, considering that the existing knee joint sports injury auxiliary rehabilitation training device has relatively simple functionality and the patient only performs passive rehabilitation training with the existing knee joint sports injury auxiliary rehabilitation training device, the inventors decided to combine the patient's autonomous rehabilitation training with passive assisted rehabilitation training; To ensure that the patient's passive rehabilitation training and active rehabilitation training can be separated or carried out in steps without interfering with each other, and to ensure that the product size is suitable for clinical use, the inventors designed the drive method of the gear rack 5002; A fixing ring 1 and a fixing ring 2 3 are provided; the fixing ring 1 and the fixing ring 2 3 are made of Velcro material, and their specific function is to fix the thigh and calf of the human body through the fixing ring 1 and the fixing ring 2 3; in this embodiment, the fixing ring 1 and the fixing ring 2 3 can be replaced with more readily available straps according to actual conditions; In the present invention, an electric push rod 4, a microcontroller 2, a screw rod 6, a screw rod 2 8, a driving plate 5, and a limit plate 7 are provided; In this embodiment, square rods 101 are symmetrically arranged on both sides of the fixing ring 1; cylinders 1012 are symmetrically arranged at the rear end of the square rod 101, mounting grooves 1011 are opened on the side walls of the square rod 101, and mounting blocks 102 are arranged on the upper end of the square rod 101; a microcontroller 2 is fixedly installed on the wall of the square rod 101 on one side. For details, please refer to Figure 1 、 Figure 2 ; In this embodiment, square rods 301 are symmetrically arranged on both sides of the fixing ring 2 3; a toothed disc 302 is integrally arranged at the front end of the square rod 301 to be movably connected to the cylinder 1012; In this embodiment, the driving plate 5 is slidably installed in the mounting groove 1011; a rack 5002 is provided at the lower end of the driving plate 5 to be movably connected to the gear, an arc plate 5003 is integrally provided at the front of the lower end of the driving plate 5 to be movably connected to the gear plate 302, and a sliding groove is provided in the middle of the driving plate 5 to slidably install the limit plate 7; a block 501 is provided on the rear wall of the driving plate 5; one side of the block 501 is fixedly connected to the output shaft 401 of the electric push rod 4, and the other side is provided with an elastic element 5011 to connect the adjustment plate 5012; the adjustment plate 5012 is slidably installed in the mounting groove 1011, and the upper part of the adjustment plate 5012 is threadedly connected to the screw 28 The side wall of the chute is rotatably mounted with a screw rod 6; the limit plate 7 is threadedly connected to the screw rod 6, and a baffle 702 is provided at the lower portion of the limit plate 7 to movably connect to the gear 1; The mounting block 102 has a limit groove 1021 inside for slidingly mounting the adjustment plate 5012, and the mounting screw 8 is rotated inside the mounting block 102; In this embodiment, the fixing ring 1 and the fixing ring 2 3 are made of Velcro material, which is convenient for adaptive fixation of thighs and calves of different thicknesses; In this embodiment, the microcontroller 2 is connected to the electric push rod 4; a display screen and operation buttons are provided on the microcontroller 2 to facilitate rapid regulation of the telescopic stroke and telescopic rate of the electric push rod 4, and the telescopic stroke and rate are digitally displayed on the display screen; In this embodiment, the middle portion of the toothed disc 302 is rotatably connected to the cylinder 1012; In this embodiment, the inner wall of the arc-shaped plate 5003 is provided with an array of gears movably connected to the toothed disc 302. When the gears on the inner wall of the arc-shaped plate 5003 engage the toothed disc 302, the square rod 101 and the square rod 1 301 are collinear, and the human leg is in a straight state. By controlling the gears on the inner wall of the arc-shaped plate 5003 to engage the toothed disc 302, the rotation of the toothed disc 302 is restricted. In this embodiment, a protrusion 701 is provided on the upper wall of the limit plate 7 to interactively connect with the slide groove, and the protrusion 701 is threadedly connected to the screw 6; a baffle 702 is integrally provided on the lower wall of the limit plate 7; an arcuate groove 7021 is provided on the baffle 702; a gear is provided in the arcuate groove 7021 to movably connect with the toothed disc 302; the rotation of the toothed disc 302 is limited by controlling the gear on the baffle 702 to engage with the toothed disc 302; the distance between the baffle 702 and the arcuate plate 5003 is the driving stroke for driving the toothed disc 302 to rotate, and the driving stroke is adjusted by controlling the movement of the baffle 702 by the screw 6 to adjust the different rotation angles of the toothed disc 302; In this embodiment, a plurality of scale lines are arranged in an array on the limit plate 7, and the distance between the scale lines corresponds to the rotation angle of the turntable; In this embodiment, the output shaft 401 of the electric push rod 4 is a movable telescopic rod, that is, when the electric push rod 4 is not powered, the output shaft 401 of the electric push rod 4 can be freely extended and retracted in the installation groove 1011 driven by the block 501; In this embodiment, the elastic element 5011 is always in a compressed state.

[0011] Directions: The fixing ring 1 cooperates with the fixing ring 2 3 to fix the thigh and calf of the human body respectively, keeping the gear plate 302 located on both sides of the knee joint; and by rotating the screw 1 6, the distance between the baffle 702 and the curved plate 5003 is adjusted to adjust the length of the driving stroke, adjust the rotation angle of the gear plate 302, and adjust the movement angle of the patient's knee to adapt to patients at different rehabilitation stages and with different knee flexion abilities; and the baffle 702 cooperates with the curved plate 5003 to protect the patient's knee, preventing the knee from exceeding the standard movement angle during active or passive rehabilitation training, which may cause rehabilitation damage to the knee; Passive rehabilitation training: The microcontroller 2 controls the extension and retraction of the electric push rod 4; then controls the extension and retraction of the electric push rod 4, driving the drive plate 5 to reciprocate, and the drive plate 5 drives the gear plate 302 to reciprocate, driving the patient to perform passive knee flexion training; Active rehabilitation training: turn off the power to the electric push rod 4; then rotate the screw 2 8 to adjust the distance between the adjustment plate 5012 and the block 501, adjust the energy storage intensity of the elastic element 5011, and then the patient's calf rotates to perform knee flexion training independently; during the rehabilitation training process, the calf drives the gear plate 302 to rotate, and the gear plate 302 reversely drives the drive plate 5 to compress the elastic element 5011, providing resistance for the patient's knee flexion movement.

[0012] In summary, the present invention discloses an auxiliary rehabilitation training device for knee joint sports injuries, which can assist patients to freely switch between autonomous rehabilitation training and passive rehabilitation training, and solve the problem that the rehabilitation devices in the prior art rely on patients to independently perform knee flexion rehabilitation exercises. Although the rehabilitation is more proactive, the knee joint is severely damaged and the knee joint movement ability is limited, making it difficult to perform passive rehabilitation training with the help of existing auxiliary rehabilitation devices.

[0013] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A knee joint sports injury auxiliary rehabilitation training device, characterized in that: include: Fixed ring 1, fixed ring 2, electric push rod, microcontroller, screw 1, screw 2, drive plate, limit plate; Square rods are symmetrically arranged on both sides of the fixing ring; cylinders are symmetrically arranged at the rear end of the square rods, mounting grooves are provided on the side walls of the square rods, and mounting blocks are provided on the upper ends of the square rods; a microcontroller is fixedly installed on the wall of the square rod on one side; A square rod 1 is symmetrically arranged on both sides of the fixing ring; a toothed disc movably connected to a cylinder is integrally arranged at the front end of the square rod 1; The driving plate is slidably installed in the mounting groove; a rack is provided at the lower end of the driving plate for movable connection to the gear, an arc plate is integrally provided at the front of the lower end of the driving plate for movable connection to the gear disk, a slide groove is provided in the middle of the driving plate for sliding installation of a limit plate; a block is provided on the rear wall of the driving plate; one side of the block is fixedly connected to the output shaft of the electric push rod, and the other side is provided with an elastic element for connecting to the adjustment plate; the adjustment plate is slidably installed in the mounting groove, and the upper part of the adjustment plate is threadedly connected to the screw second The side wall of the chute is rotatably mounted with a screw rod 1; the limit plate is threadedly connected to the screw rod 1, and a baffle is provided at the lower portion of the limit plate to movably connect with a gear rod 1; A limiting groove is provided inside the installation block to slide and install the adjustment plate, and a second screw rod is rotated inside the installation block.

2. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: The first fixing ring and the second fixing ring are made of Velcro material, which is convenient for adaptively fixing thighs and calves of different thicknesses.

3. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: The microcontroller is connected to the electric push rod circuit; a display screen and operation buttons are provided on the microcontroller to facilitate rapid regulation of the telescopic stroke and telescopic rate of the electric push rod, and the telescopic stroke and rate are digitally displayed through the display screen.

4. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: The middle part of the gear disc is rotatably connected to the cylinder.

5. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: The inner wall array of the arc plate is provided with gears movably connected to the toothed disc. When the gears on the inner wall of the arc plate engage with the toothed disc, the square rods are collinear with each other and the human legs are in a straight state. By controlling the gears on the inner wall of the arc plate to engage with the toothed disc, the rotation of the toothed disc is restricted.

6. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: A protrusion interactively connected to a slide groove is provided on the upper wall of the limit plate, and the protrusion is threadedly connected to a screw; a baffle is integrally provided on the lower wall of the limit plate; an arc groove is provided on the baffle; a gear movably connected to a toothed disc is provided in the arc groove; the rotation of the toothed disc is limited by controlling the gear on the baffle to engage with the toothed disc; wherein, the distance between the baffle and the arc plate is the driving stroke for driving the toothed disc to rotate, and the size of the driving stroke is adjusted by controlling the movement of the baffle through the screw to adjust the different rotation angles of the toothed disc.

7. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: A plurality of scale lines are arranged in an array on the limit plate, and the distance between the scale lines corresponds to the rotation angle of the turntable.

8. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: The output shaft of the electric push rod is a movable telescopic rod, that is, when the electric push rod is not powered, the output shaft of the electric push rod can be freely extended and retracted in the installation groove driven by the block.

9. The knee joint sports injury auxiliary rehabilitation training device according to claim 1, characterized in that: The elastic element is always in a compressed state.

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