Auxiliary flexion and extension function exercise device for knee joint in orthopedics department

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By combining a power assist motor, a servo motor, and a lifting motor, the problems of flexion and extension assistance and seat height adjustment in knee joint exercise devices have been solved, enabling patients to stand independently and adapting to the rehabilitation needs of different patients.

CN119279991AInactive Publication Date: 2025-01-10DONGGUAN PEOPLES HOSPITAL

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Patent Information

Application Number: CN202411404647.0
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-10-10
Publication Date: 2025-01-10
Estimated Expiration: Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing knee joint exercise devices cannot provide flexion and extension assistance, the seat height cannot be adjusted, and patients have difficulty standing up on their own.

Method used

It employs an assistive motor to drive the assistive screw and a servo motor to drive the telescopic screw, combined with a lifting motor to drive the standing assistive grip, to achieve assistance in flexion and extension exercises, seat height adjustment, and patient standing assistance.

Benefits of technology

It provides assistance with flexion and extension exercises, and the seat height is adjustable, allowing patients to stand up independently and adapt to the needs of different heights and rehabilitation stages.

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Abstract

The invention discloses an orthopedic knee joint auxiliary flexion and extension function exercise device which comprises a flexion and extension exercise table, a power-assisted motor is fixedly mounted on the left side of the flexion and extension exercise table, a power-assisted screw rod is mounted in the flexion and extension exercise table, a power-assisted sliding block is mounted on the surface of the power-assisted screw rod, and a limiting sliding block is fixedly mounted at the bottom end of the power-assisted sliding block. A limiting seat is fixedly mounted at the top end of the power-assisted sliding block, a power-assisted clamping plate is mounted at the top end of the limiting seat, a limiting stand column is fixedly mounted at the top end of the flexion and extension exercise table, a limiting moving plate is mounted in the flexion and extension exercise table, and a limiting rod is inserted into the limiting moving plate. According to the flexion and extension function exercise frame, a power-assisted clamping plate is rotationally clamped in a groove in the top end of a power-assisted socket, rotation of a power-assisted motor can be used as assisting power, the difficulty at the beginning of exercise is reduced, a seat plate can ascend and descend along with extension and retraction of a telescopic screw rod, and the exercise difficulty is reduced. By means of the mode, the height position of the seat plate can be adjusted according to the height requirement of a user.

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Description

Technical Field

[0001] The invention relates to the technical field of knee joint training, in particular to an orthopedic knee joint auxiliary flexion and extension function training device. Background Art

[0002] Usually, some orthopedic patients need to stay in bed for a long time after leg surgery, and can only get out of bed after their legs recover. Because patients stay in bed for a long time, their leg muscles and knee joints cannot be exercised for a long time. In order to help the leg and knee joints recover quickly, flexion and extension function training devices are needed to assist training;

[0003] 1. The existing exercise devices cannot assist patients who have just started exercising to flex and extend their knees. Since the knee joints of patients who have just recovered are still not flexible enough, it is difficult for them to exercise on their own at the beginning.

[0004] 2. Most traditional knee joint exercise devices require patients to sit on a preset seat to perform flexion and extension exercises. However, since the preset seat height cannot be adjusted according to the patient's actual height, the device cannot be well adapted to patients of different heights;

[0005] 3. Since the patient's legs have just recovered and the muscles have not yet fully recovered, when the patient sits on the device to complete the exercise, it is difficult for the patient to stand up completely by his own strength at first. Summary of the invention

[0006] The purpose of the present invention is to provide an orthopedic knee joint flexion and extension function training device to solve the problem that most of the existing training devices mentioned in the above background technology cannot assist patients in flexion and extension when used on newly recovered patients, and the preset seats on the devices cannot be adjusted accordingly according to the actual height of the patients, and after the patients complete the exercise while sitting, it is difficult for them to stand up by their own strength at the beginning.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an orthopedic knee joint auxiliary flexion and extension function training device, comprising a flexion and extension training platform, a power-assisting motor is fixedly installed on the left side of the flexion and extension training platform, a power-assisting screw is installed inside the flexion and extension training platform, a power-assisting slider is installed on the surface of the power-assisting screw, a limit slider is fixedly installed on the bottom end of the power-assisting slider, a limit seat is fixedly installed on the top end of the power-assisting slider, a power-assisting clamping plate is installed on the top end of the limit seat, a limit column is fixedly installed on the top end of the flexion and extension training platform, and a limit movable plate is installed inside the flexion and extension training platform;

[0008] A limit rod is inserted into the interior of the limit moving plate, and a return spring is installed on the surface of the limit rod, a support plate is fixedly installed on the top of the limit moving plate, and a power-assisting socket is fixedly installed on the top of the support plate, a foot placement block is fixedly installed on the top of the support plate, a servo motor is installed inside the flexion and extension exercise platform, a seat plate is installed on the top of the flexion and extension exercise platform, a back plate is installed on the surface of the limit column, and a limit column is fixedly installed on the top of the flexion and extension exercise platform.

[0009] Preferably, a group of circular through holes matching the size of the power-assisting motor output shaft are opened on the left side of the flexion and extension exercise platform, the output shaft of the power-assisting motor is fixedly connected to the left end of the power-assisting screw, and the right end of the power-assisting screw is installed on the surface of the flexion and extension exercise platform through a bearing seat, and a group of rectangular grooves matching the size of the limit slider are opened on the surface of the flexion and extension exercise platform, and a group of circular screw holes matching the size of the power-assisting screw are opened inside the power-assisting slider.

[0010] Preferably, a rectangular block fixedly connected to the bottom end of the support plate is provided at the top of the limit movable plate, two groups of rectangular hole grooves adapted to the rectangular block are provided at the top of the flexion and extension exercise platform, the power-assisting clamping plate is installed inside the limit seat through a connecting shaft, and a group of rectangular grooves adapted to the size of the power-assisting clamping plate are provided at the top of the power-assisting socket.

[0011] Preferably, a foot rest is installed at the top of the foot placement block, an angle adjustment block is fixedly installed at the bottom end of the foot rest, an adjustment rod is inserted into the surface of the foot placement block, the bottom end of the foot rest is installed inside the foot placement block through a connecting shaft, and a circular hole groove matching the size of the adjustment rod is opened on the surface of the foot placement block.

[0012] Preferably, the output shaft of the servo motor is fixedly mounted with an output gear, the top of the seat plate is fixedly mounted with a seat cushion, the bottom of the seat plate is equipped with a telescopic screw, and the surface of the telescopic screw is equipped with a sleeve, and the surface of the sleeve is fixedly mounted with a transmission gear.

[0013] Preferably, the surface of the seat plate is provided with two groups of circular hole grooves that are adapted to the size of the limiting columns, the surface of the servo motor and the surface of the transmission gear are meshed with each other, the top of the flexion and extension exercise platform is provided with a circular through hole that is adapted to the size of the sleeve, the bottom end of the sleeve is installed inside the flexion and extension exercise platform through a bearing seat, and the inner wall of the sleeve is provided with a thread that is meshed with the surface of the telescopic screw.

[0014] Preferably, a back cushion is fixedly installed on the left side of the back plate, a limit stopper is fixedly installed on the right side of the back plate, an adjusting screw is installed on the right side of the back plate, and a fixed clamp is installed on the surface of the adjusting screw.

[0015] Preferably, an arc-shaped groove adapted to the size of the limiting column is opened on the right side of the back plate, a rectangular through hole adapted to the size of the limiting block is opened inside the fixed splint, a circular screw hole adapted to the size of the adjusting screw is opened inside the fixed splint, and an arc-shaped groove adapted to the size of the limiting column is opened on the left side of the fixed splint.

[0016] Preferably, a support column is installed inside the limit column, a lifting screw is fixedly installed on the top of the support column, a lifting slider is installed on the surface of the lifting screw, a connecting slider is fixedly installed on the surface of the lifting slider, a standing auxiliary handle is fixedly installed on the surface of the connecting slider, and a lifting motor is installed on the top of the limit column.

[0017] Preferably, the bottom end of the support column is installed on the inner wall of the bottom end of the limit column through a bearing seat, the top end of the lifting screw is fixedly connected to the output shaft of the lifting motor, a group of circular screw holes matching the size of the lifting screw are opened inside the lifting slider, and a rectangular hole groove matching the size of the connecting slider is opened on the surface of the limit column.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the flexion and extension function training frame,

[0019] 1. The power-assisting clamping plate can be rotated and engaged in the top groove of the power-assisting socket, and the rotation of the power-assisting motor can be used to assist the foot placement block to move back and forth horizontally. In this way, when the user just performs flexion and extension exercises, the rotation of the power-assisting motor can be used as an assist, reducing the difficulty at the beginning of the exercise;

[0020] 2. The rotation of the servo motor can make the telescopic screw extend and retract inside the sleeve. As the telescopic screw extends and retracts, the seat plate can be raised and lowered accordingly. In this way, the height position of the seat plate can be adjusted according to the height requirements of the user;

[0021] 3. After the patient completes the exercise, he / she holds the standing assist handles with both hands and uses the rotation of the lifting motor to raise the standing assist handles. In this way, the patient can stand up with the help of the rising force of the standing assist handles. In this way, the patient can stand up by himself / herself right after finishing the exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention from the left;

[0023] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the present invention from the right side;

[0024] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the overall structure of the present invention;

[0025] Figure 4It is a three-dimensional schematic diagram of the structure of the limit movable plate, the support plate and the foot placement block of the present invention;

[0026] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the foot placement block structure of the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the servo motor and seat plate structure of the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the backing plate structure of the present invention;

[0029] Figure 8 It is a three-dimensional cross-sectional schematic diagram of the limiting column structure of the present invention;

[0030] Fig. 9 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle.

[0031] In the figure: 1. flexion and extension exercise platform; 101. power-assisted motor; 102. power-assisted screw; 103. power-assisted slider; 104. limit slider; 105. limit seat; 106. power-assisted clamping plate; 107. limit column; 2. limit movable plate; 201. limit rod; 202. return spring; 3. support plate; 301. power-assisted socket; 4. foot placement block; 401. foot support; 402. angle adjustment block; 403. adjustment plug rod; 5. servo Servo motor; 501, output gear; 6, seat plate; 601, seat cushion; 602, telescopic screw; 603, sleeve; 604, transmission gear; 7, back plate; 701, back cushion; 702, limit block; 703, adjusting screw; 704, fixing splint; 8, limit column; 801, support column; 802, lifting screw; 803, lifting slider; 804, connecting slider; 805, standing auxiliary handle; 806, lifting motor. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figure 1-9The present invention provides a technical solution: an orthopedic knee joint auxiliary flexion and extension function training device, comprising a flexion and extension training platform 1, a power-assisting motor 101 is fixedly installed on the left side of the flexion and extension training platform 1, a power-assisting screw 102 is installed inside the flexion and extension training platform 1, a power-assisting slider 103 is installed on the surface of the power-assisting screw 102, and a limiting slider 104 is fixedly installed on the bottom end of the power-assisting slider 103, a limiting seat 105 is fixedly installed on the top of the power-assisting slider 103, and a power-assisting clamping plate 106 is installed on the top of the limiting seat 105, a limiting column 107 is fixedly installed on the top of the flexion and extension training platform 1, and a limiting movable plate 2 is installed inside the flexion and extension training platform 1;

[0034] A limiting rod 201 is inserted into the interior of the limiting movable plate 2, and a return spring 202 is installed on the surface of the limiting rod 201, a support plate 3 is fixedly installed on the top of the limiting movable plate 2, and a power-assisting socket 301 is fixedly installed on the top of the support plate 3, a foot placement block 4 is fixedly installed on the top of the support plate 3, a servo motor 5 is installed inside the flexion and extension exercise platform 1, a seat plate 6 is installed on the top of the flexion and extension exercise platform 1, a back plate 7 is installed on the surface of the limiting column 107, and a limiting column 8 is fixedly installed on the top of the flexion and extension exercise platform 1.

[0035] Through the above technical solution, the power-assisting clamping plate 106 can be inserted into the top groove of the power-assisting socket 301, and the power-assisting motor 101 can be rotated to make the power-assisting slider 103 move back and forth horizontally, so that it can move back and forth horizontally together with the foot placement block 4. In this way, the movement of the foot placement block 4 is assisted, which can reduce the difficulty of the patient's flexion and extension exercises.

[0036] The left side of the flexion and extension exercise platform 1 in this example is provided with a group of circular through holes that match the size of the output shaft of the power-assisting motor 101. The output shaft of the power-assisting motor 101 is fixedly connected to the left end of the power-assisting screw 102. The right end of the power-assisting screw 102 is installed on the surface of the flexion and extension exercise platform 1 through a bearing seat. The surface of the flexion and extension exercise platform 1 is provided with a group of rectangular grooves that match the size of the limit slider 104. The inside of the power-assisting slider 103 is provided with a group of circular screw holes that match the size of the power-assisting screw 102.

[0037] Through the above technical solution, the boosting motor 101 can be used as the output power to drive the boosting screw 102 to rotate, and the boosting slider 103 will reciprocate horizontally as the boosting screw 102 rotates;

[0038] The top of the limit moving plate 2 is provided with a rectangular block fixedly connected to the bottom of the support plate 3, the top of the flexion and extension exercise platform 1 is provided with two groups of rectangular holes adapted to the rectangular block, the power-assisting clamping plate 106 is installed inside the limit seat 105 through a connecting shaft, and the top of the power-assisting socket 301 is provided with a group of rectangular grooves adapted to the size of the power-assisting clamping plate 106;

[0039] Through the above technical solution, the power-assisting clamping plate 106 can be rotated at the top of the limiting seat 105. After the power-assisting clamping plate 106 is rotated and inserted into the top of the power-assisting socket 301, the support plate 3 can move with the horizontal sliding of the power-assisting slider 103.

[0040] A foot rest 401 is installed at the top of the foot placement block 4, an angle adjustment block 402 is fixedly installed at the bottom of the foot rest 401, an adjustment plug rod 403 is inserted on the surface of the foot placement block 4, the bottom end of the foot rest 401 is installed inside the foot placement block 4 through a connecting shaft, and a circular hole groove matching the size of the adjustment plug rod 403 is opened on the surface of the foot placement block 4;

[0041] Through the above technical solution, the user can place the foot in the groove opened at the top of the footrest 401, and the inclination angle of the footrest 401 can be adjusted by inserting the adjustment rod 403 into different holes and grooves opened on the surface of the foot placement block 4, so that the inclination angle of the footrest 401 can be adjusted according to the user's foot placement requirements;

[0042] The output shaft of the servo motor 5 is fixedly mounted with an output gear 501, the top of the seat plate 6 is fixedly mounted with a seat cushion 601, the bottom of the seat plate 6 is mounted with a telescopic screw 602, and the surface of the telescopic screw 602 is mounted with a sleeve 603, and the surface of the sleeve 603 is fixedly mounted with a transmission gear 604;

[0043] The surface of the seat plate 6 is provided with two groups of circular holes and grooves matching the size of the limit column 107, the surface of the servo motor 5 is meshed with the surface of the transmission gear 604, the top of the flexion and extension exercise platform 1 is provided with a circular through hole matching the size of the sleeve 603, the bottom end of the sleeve 603 is installed inside the flexion and extension exercise platform 1 through a bearing seat, and the inner wall of the sleeve 603 is provided with a thread meshed with the surface of the telescopic screw 602;

[0044] Through the above technical solution, the servo motor 5 is used as the output power to drive the sleeve 603 to rotate, so that the telescopic screw 602 can be extended and retracted inside the sleeve 603. In this way, the height of the seat plate 6 can be raised and lowered as the telescopic screw 602 is extended and retracted.

[0045] A cushion 701 is fixedly installed on the left side of the back plate 7, a limit stopper 702 is fixedly installed on the right side of the back plate 7, an adjusting screw 703 is installed on the right side of the back plate 7, and a fixed clamping plate 704 is installed on the surface of the adjusting screw 703;

[0046] The right side of the back plate 7 is provided with an arc-shaped groove matching the size of the limit column 107, the interior of the fixed clamping plate 704 is provided with a rectangular through hole matching the size of the limit stopper 702, the interior of the fixed clamping plate 704 is provided with a circular screw hole matching the size of the adjustment screw 703, and the left side of the fixed clamping plate 704 is provided with an arc-shaped groove matching the size of the limit column 107;

[0047] Through the above technical solution, after the height of the seat plate 6 is adjusted, the adjusting screw 703 can be rotated to adjust the height position of the back plate 7 so that the back cushion 701 can better fit the back of the user;

[0048] A support column 801 is installed inside the limiting column 8, a lifting screw 802 is fixedly installed on the top of the supporting column 801, a lifting slider 803 is installed on the surface of the lifting screw 802, a connecting slider 804 is fixedly installed on the surface of the lifting slider 803, a standing auxiliary handle 805 is fixedly installed on the surface of the connecting slider 804, and a lifting motor 806 is installed on the top of the limiting column 8;

[0049] The bottom end of the support column 801 is mounted on the inner wall of the bottom end of the limiting column 8 through a bearing seat, the top end of the lifting screw 802 is fixedly connected to the output shaft of the lifting motor 806, a group of circular screw holes matching the size of the lifting screw 802 are opened inside the lifting slider 803, and a rectangular hole groove matching the size of the connecting slider 804 is opened on the surface of the limiting column 8;

[0050] Through the above technical solution, when the patient finishes exercising, he / she holds the surface of the standing assisting handle 805 with both hands, and the lifting motor 806 rotates to rotate the lifting screw 802, so that the lifting slider 803 can slide upward. In this way, the standing assisting handle 805 can be moved upward, thereby helping the patient to stand up.

[0051] Working principle: According to Figure 1-9As shown, when the patient just starts to do knee flexion and extension exercises, first let the patient sit on the top of the seat cushion 601, adjust the inclination angle of the footrest 401 to a suitable level, let the patient's foot be placed in the groove opened at the top of the footrest 401, then rotate the power-assisting clamping plate 106 and insert it into the groove opened at the top of the power-assisting socket 301, and then the power-assisting screw 102 can be rotated by the rotation of the power-assisting motor 101, and the power-assisting slider 103 can slide horizontally on its surface by the rotation of the power-assisting screw 102, and the power-assisting clamping plate 106 can also be moved horizontally by the sliding of the power-assisting slider 103. Since one end of the power-assisting clamping plate 106 is inserted into the top of the power-assisting socket 301, it can drive the support plate 3 and the foot placement block 4 to reciprocate horizontally. In this way, the movement of the foot placement block 4 can be assisted, so that when the patient just starts to do flexion and extension exercises, the foot can get assistance when pushing and pulling the foot placement block 4, thereby reducing the difficulty of training at the beginning;

[0052] according to Figure 1-9 As shown, when the height of the seat plate 6 needs to be adjusted, the output gear 501 is rotated by the rotation of the servo motor 5, and the transmission gear 604 is driven to rotate with the rotation of the output gear 501, and the sleeve 603 is rotated by the rotation of the transmission gear 604. The rotation of the sleeve 603 can make the telescopic screw 602 telescopically move inside the sleeve 603, and the seat plate 6 can be raised or lowered with the telescopic movement of the telescopic screw 602. In this way, the height of the seat plate 6 can be adjusted according to the user's preference. The height of the user can be adjusted by rotating the adjusting screw 703. When the seat plate 6 is adjusted, the fixing clamp 704 can be moved to the right, so that the back cushion 701 and the fixing clamp 704 are no longer clamped on the surface of the limiting column 107. At this time, the height of the backrest plate 7 can be adjusted. When the backrest plate 7 is adjusted to an appropriate height, the adjusting screw 703 can be rotated to make the backrest plate 7 and the fixing clamp 704 firmly clamped on the surface of the limiting column 107 and fix their positions, so that the backrest cushion 701 can fit the user's back better.

[0053] according to Figure 1-9 As shown, when the patient has finished exercising, the patient holds the standing assisting handle 805 with both hands, and then drives the lifting screw 802 to rotate through the rotation of the lifting motor 806. The rotation of the lifting screw 802 can make the lifting slider 803 slide on its surface. When the lifting slider 803 slides upward, the connecting slider 804 will also move upward. The upward movement of the connecting slider 804 can drive the standing assisting handle 805 to move upward together. In this way, when the standing assisting handle 805 moves upward, the patient holding the standing assisting handle 805 can be pulled upward, so that the patient can get help when standing up, and this allows patients who have just recovered and are doing recovery exercises to stand up by themselves.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An orthopedic knee joint auxiliary flexion and extension function training device, comprising a flexion and extension training platform, characterized in that: A power-assisting motor is fixedly installed on the left side of the flexion and extension exercise platform, a power-assisting screw is installed inside the flexion and extension exercise platform, a power-assisting slider is installed on the surface of the power-assisting screw, and a limit slider is fixedly installed on the bottom end of the power-assisting slider, a limit seat is fixedly installed on the top of the power-assisting slider, and a power-assisting clamping plate is installed on the top of the limit seat, a limit column is fixedly installed on the top of the flexion and extension exercise platform, and a limit movable plate is installed inside the flexion and extension exercise platform; A limiting rod is inserted into the interior of the limiting movable plate, and a return spring is installed on the surface of the limiting rod, a supporting plate is fixedly installed on the top of the limiting movable plate, and a power-assisting socket is fixedly installed on the top of the supporting plate, a foot placement block is fixedly installed on the top of the supporting plate, a servo motor is installed inside the flexion and extension exercise platform, a seat plate is installed on the top of the flexion and extension exercise platform, a backing plate is installed on the surface of the limiting column, and a limiting column is fixedly installed on the top of the flexion and extension exercise platform.

2. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 1, characterized in that: A group of circular through holes matching the size of the power-assisting motor output shaft are opened on the left side of the flexion and extension exercise platform, the output shaft of the power-assisting motor is fixedly connected to the left end of the power-assisting screw, the right end of the power-assisting screw is installed on the surface of the flexion and extension exercise platform through a bearing seat, a group of rectangular grooves matching the size of the limit slider are opened on the surface of the flexion and extension exercise platform, and a group of circular screw holes matching the size of the power-assisting screw are opened inside the power-assisting slider.

3. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 1, characterized in that: A rectangular block fixedly connected to the bottom end of the support plate is arranged at the top of the limit movable plate, two groups of rectangular hole grooves matched with the rectangular block are opened at the top of the flexion and extension exercise platform, the power-assisting clamping plate is installed inside the limit seat through a connecting shaft, and a group of rectangular grooves matched with the size of the power-assisting clamping plate are opened at the top of the power-assisting socket.

4. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 1, characterized in that: A footrest is installed at the top of the foot placement block, and an angle adjustment block is fixedly installed at the bottom of the footrest. An adjustment rod is inserted on the surface of the foot placement block. The bottom end of the footrest is installed inside the foot placement block through a connecting shaft. A circular hole groove matching the size of the adjustment rod is opened on the surface of the foot placement block.

5. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 1, characterized in that: The output shaft of the servo motor is fixedly mounted with an output gear, the top of the seat plate is fixedly mounted with a seat cushion, the bottom of the seat plate is equipped with a telescopic screw, and the surface of the telescopic screw is equipped with a sleeve, and the surface of the sleeve is fixedly mounted with a transmission gear.

6. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 5, characterized in that: The surface of the seat plate is provided with two groups of circular holes and grooves that are adapted to the size of the limiting columns. The surface of the servo motor meshes with the surface of the transmission gear. The top of the flexion and extension exercise platform is provided with a circular through hole that is adapted to the size of the sleeve. The bottom end of the sleeve is installed inside the flexion and extension exercise platform through a bearing seat. The inner wall of the sleeve is provided with a thread that meshes with the surface of the telescopic screw.

7. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 1, characterized in that: A back cushion is fixedly installed on the left side of the back plate, a limit stopper is fixedly installed on the right side of the back plate, an adjusting screw is installed on the right side of the back plate, and a fixed clamp is installed on the surface of the adjusting screw.

8. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 7, characterized in that: An arc-shaped groove adapted to the size of the limiting column is opened on the right side of the support plate, a rectangular through hole adapted to the size of the limiting block is opened inside the fixed splint, a circular screw hole adapted to the size of the adjusting screw is opened inside the fixed splint, and an arc-shaped groove adapted to the size of the limiting column is opened on the left side of the fixed splint.

9. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 1, characterized in that: A support column is installed inside the limiting column, a lifting screw is fixedly installed on the top of the support column, a lifting slider is installed on the surface of the lifting screw, a connecting slider is fixedly installed on the surface of the lifting slider, a standing auxiliary handle is fixedly installed on the surface of the connecting slider, and a lifting motor is installed on the top of the limiting column.

10. The orthopedic knee joint auxiliary flexion and extension function training device according to claim 9, characterized in that: The bottom end of the support column is installed on the inner wall of the bottom end of the limit column through a bearing seat, the top end of the lifting screw is fixedly connected to the output shaft of the lifting motor, a group of circular screw holes matching the size of the lifting screw are opened inside the lifting slider, and a rectangular hole groove matching the size of the connecting slider is opened on the surface of the limit column.