Knee joint rehabilitation training device

Abstract

The utility model discloses a knee joint rehabilitation training device, and particularly relates to the technical field of knee joint rehabilitation, the knee joint rehabilitation training device comprises a bottom plate, one side of the top of the bottom plate is rotatably connected with a second rotating plate through a rotating shaft, the second rotating plate is rotatably connected with a first rotating plate through a rotating shaft, and the bottom plate is provided with a driving mechanism capable of driving the first rotating plate and the second rotating plate to rotate. A first motor capable of driving the driving mechanism and two supporting columns are installed on one side of the bottom plate, the two supporting columns are fixed to the two sides of the bottom plate respectively, lifting mechanisms capable of driving the first rotating plate to ascend and descend are arranged on the two supporting columns, and second motors capable of driving the lifting mechanisms are installed on the tops of the supporting columns. The first motor drives the first lead screw to rotate, the first lead screw drives the first rectangular block to move, and the first rectangular block drives the first rotating plate and the second rotating plate to rotate through the main connecting part, so that bending training of the knee joint is completed, and rehabilitation of the knee joint is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of knee joint rehabilitation, in particular to a knee joint rehabilitation trainer. Background Art

[0002] The knee joint is composed of the lower end of the femur, the upper end of the tibia and the patella. It is the largest and most complex joint in the human body and belongs to a trochlear joint. After surgery for fractures or joint injuries, due to lack of exercise for a long time, muscle atrophy may occur to a certain extent. In particular, joint adhesion and stiffness after knee joint surgery seriously affect the normal life of patients after surgery.

[0003] At present, most common knee joint rehabilitation methods on the market are to assist patients by hand with the rehabilitation training of the knee position by rehabilitation therapists. However, rehabilitation therapists may get tired after working for a long time and it is difficult to maintain long-term rehabilitation training. Content of the Utility Model

[0004] In order to achieve the above object, the utility model provides the following technical solutions: A knee joint rehabilitation trainer, comprising:

[0005] A bottom plate, on one side of the top of the bottom plate, a second rotating plate is rotatably connected through a rotating shaft, the second rotating plate is rotatably connected with a first rotating plate through a rotating shaft, a driving mechanism capable of driving the first rotating plate and the second rotating plate to rotate is provided on the bottom plate, and a first motor capable of driving the driving mechanism is installed on one side of the bottom plate;

[0006] Two support columns, the two support columns are respectively fixed on both sides of the bottom plate, and a lifting mechanism capable of driving the first rotating plate to lift is provided on each of the two support columns, and a second motor capable of driving the lifting mechanism is installed on the top of the support column.

[0007] Preferably, the driving mechanism includes a first rectangular groove opened on the top of the bottom plate, a first rectangular block slides inside the first rectangular groove, a first lead screw is provided inside the first rectangular groove, one end of the first lead screw penetrates through the first rectangular block and is rotatably connected with the bottom plate through a bearing, the output end of the first motor penetrates through the bottom plate and is fixed to the other end of the first lead screw, the top of the first rectangular block is connected with the first rotating plate through a main connecting part, and the first lead screw is in threaded connection with the first rectangular block.

[0008] Preferably, the main connecting part includes a slot opened on the top of the first rectangular block, a connecting block is rotatably connected to the bottom of the first rotating plate through a rotating shaft, an inserting block is fixed to the bottom of the connecting block, and the inserting block can be inserted into the slot.

[0009] Preferably, the lifting mechanism includes rectangular grooves II formed on the facing surfaces of two support columns. A rectangular block II slides inside the rectangular groove II. A lead screw II is provided inside the rectangular groove II. One end of the lead screw II passes through the rectangular block II and is rotatably connected to the support column through a bearing. The output end of the motor II passes through the support column and is fixedly connected to the other end of the lead screw II. The rectangular block II is connected to the rotating plate I through a secondary connecting part. The lead screw II is threadedly connected to the rectangular block II.

[0010] Preferably, the secondary connecting part includes a fixing block fixed on the rectangular block. A semi-cylindrical groove is formed on the fixing block. Sliding grooves are formed on both sides of the rotating plate I facing the two support columns. A sliding column slides inside the sliding groove.

[0011] Preferably, a baffle is fixed on the top of the rotating plate I.

[0012] Preferably, a soft pad is fixed on the side of the bottom plate away from the motor I.

[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0014] 1. The motor I drives the lead screw I to rotate. The lead screw I drives the rectangular block I to move. The rectangular block I drives the rotating plate I and the rotating plate II to rotate through the main connecting part, thereby completing the bending training of the knee joint and facilitating the rehabilitation of the knee joint.

[0015] 2. The motor II drives the lead screw II to rotate. The lead screw II drives the rectangular block II to rotate. The rectangular block II drives one end of the main rotating plate to lift through the secondary connecting part. Since the rotating plate I is rotatably connected to the bottom plate, the rotating plate I and the rotating plate II will be inclined at the same angle. When the rotating plate I is lifted, the sliding column will slide in the sliding groove, thereby lifting and exercising the entire leg and facilitating the rehabilitation of the knee joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of the overall side-sectional structure of the present utility model;

[0019] Figure 3 It is a partial structural cross-sectional view of the present utility model;

[0020] Figure 4For Figure 3 Schematic enlarged view of the structure at position A in

[0021] Explanation of reference numerals:

[0022] 1. Soft cushion; 2. Second rotating plate; 3. First rotating plate; 4. Support column; 5. Second motor; 6. Second rectangular groove; 7. First motor; 8. Bottom plate; 9. First rectangular groove; 10. First lead screw; 11. Slot; 12. First rectangular block; 13. Insert block; 14. Connecting block; 15. Baffle; 16. Second lead screw; 17. Second rectangular block; 18. Sliding groove; 19. Sliding column; 20. Fixed block; 21. Semi-cylindrical groove. Specific implementation mode

[0023] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Refer to Figures 1-4 As shown, the knee joint rehabilitation trainer includes:

[0025] A bottom plate 8, one side of the top of the bottom plate 8 is rotatably connected to a second rotating plate 2 through a rotating shaft, the second rotating plate 2 is rotatably connected to a first rotating plate 3 through a rotating shaft, and a driving mechanism capable of driving the first rotating plate 3 and the second rotating plate 2 to rotate is provided on the bottom plate 8, and a first motor 7 capable of driving the driving mechanism is installed on one side of the bottom plate 8.

[0026] Two support columns 4, the two support columns 4 are respectively fixed on both sides of the bottom plate 8, and a lifting mechanism capable of driving the first rotating plate 3 to lift is provided on each of the two support columns 4, and a second motor 5 capable of driving the lifting mechanism is installed on the top of the support column 4.

[0027] Furthermore, the driving mechanism includes a first rectangular groove 9 opened on the top of the bottom plate 8, a first rectangular block 12 slides inside the first rectangular groove 9, a first lead screw 10 is provided inside the first rectangular groove 9, one end of the first lead screw 10 penetrates through the first rectangular block 12 and is rotatably connected to the bottom plate 8 through a bearing, the output end of the first motor 7 penetrates through the bottom plate 8 and is fixedly connected to the other end of the first lead screw 10, the top of the rectangular block is connected to the first rotating plate 3 through a main connecting portion, the first lead screw 10 is threadedly connected to the first rectangular block 12, the first motor 7 drives the first lead screw 10 to rotate, the first lead screw 10 drives the first rectangular block 12 to move, and the first rectangular block 12 drives the first rotating plate 3 and the second rotating plate 2 to rotate through the main connecting portion (the first rotating plate 3 and the second rotating plate 2 can only rotate downward unidirectionally).

[0028] Further, the main connection part includes a slot 11 opened at the top of the rectangular block. The bottom of the first rotating plate 3 is rotatably connected to a connecting block 14 through a rotating shaft. A plug block 13 is fixed to the bottom of the connecting block 14. The plug block 13 can be inserted into the slot 11. When the plug block 13 is inserted into the slot 11, the first rectangular block 12 and the first rotating plate 3 can be connected, which is convenient for the first rectangular block 12 to drive the first rotating plate 3 to rotate, so as to complete the bending training of the knee joint.

[0029] Further, the lifting mechanism includes rectangular grooves 6 opened on the opposite surfaces of two support columns 4. A second rectangular block 17 slides inside the rectangular groove 6. A second lead screw 16 is arranged inside the rectangular groove 6. One end of the second lead screw 16 penetrates through the second rectangular block 17 and is rotatably connected to the support column 4 through a bearing. The output end of the second motor 5 penetrates through the support column 4 and is fixed to the other end of the second lead screw 16. The second rectangular block 17 is connected to the first rotating plate 3 through a secondary connection part. The second lead screw 16 is threadedly connected to the second rectangular block 17. The second motor 5 drives the second lead screw 16 to rotate, and the second lead screw 16 drives the second rectangular block 17 to move up and down. The second rectangular block 17 drives the end of the main rotating plate 3 to move up and down through the secondary connection part.

[0030] Further, the secondary connection part includes a fixed block 20 fixed on the rectangular block. A semi-cylindrical groove 21 is opened on the fixed block 20. Sliding grooves 18 are opened on one side of the first rotating plate 3 facing the two support columns 4. A sliding column 19 slides inside the sliding groove 18. The semi-cylindrical groove 21 on the fixed block 20 can drive the first rotating plate 3 to move up and down through the sliding column 19. Since the first rotating plate 3 is rotatably connected to the bottom plate 8, the first rotating plate 3 and the second rotating plate 2 will tilt at the same angle. When the first rotating plate 3 moves up and down, the rectangular block moves upward, and the cylinder will be stuck in the cylindrical groove of the plate. At the same time, the rectangular block will drive the sliding column 19 to slide inside the sliding groove 18, so as to lift and exercise the whole leg.

[0031] Further, a baffle 15 is fixed to the top of the first rotating plate 3 to prevent the leg from falling off the first rotating plate 3.

[0032] Further, a soft pad 1 is fixed to the side of the bottom plate 8 away from the first motor 7.

[0033] Through the above technical solutions:

[0034] During use, when the patient is in bed, place the device under the patient's legs, and place the patient's legs on the first rotating plate 3 and the second rotating plate 2, ensuring that the patient's knee position is at the connection between the first rotating plate 3 and the second rotating plate 2. Turn on the first motor 7, and the first motor 7 drives the first lead screw 10 to rotate. The first lead screw 10 drives the first rectangular block 12 to move. The first rectangular block 12 drives the first rotating plate 3 and the second rotating plate 2 to rotate through the main connection part, thereby completing the flexion training of the knee joint. Turn on the second motor 5, and the second motor 5 drives the second lead screw 16 to rotate. The second lead screw 16 drives the second rectangular block 17 to rotate. The second rectangular block 17 drives the end of the main rotating plate 3 to rise through the secondary connection part. Since the first rotating plate 3 is rotatably connected to the bottom plate 8, the first rotating plate 3 and the second rotating plate 2 will tilt at the same angle. When the first rotating plate 3 moves up and down, the rectangular block moves upward, and the cylinder will be stuck in the cylindrical groove of the plate. At the same time, the rectangular block will drive the sliding column 19 to slide in the sliding groove 18, thereby lifting the entire leg for exercise, which is convenient for knee joint rehabilitation.

[0035] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A knee joint rehabilitation trainer, characterized in that: include: A bottom plate (8), one side of the top of the bottom plate (8) is rotatably connected to a rotating plate (2) via a rotating shaft, the rotating plate (2) is rotatably connected to a rotating plate (3) via a rotating shaft, a driving mechanism capable of driving the rotating plate (3) and the rotating plate (2) to rotate is provided on the bottom plate (8), and a motor (7) capable of driving the driving mechanism is installed on one side of the bottom plate (8); Two support columns (4), the two support columns (4) are respectively fixed on both sides of the bottom plate (8), the two support columns (4) are both provided with a lifting mechanism capable of driving the rotating plate 1 (3) to rise and fall, and the top of the support column (4) is provided with a motor 2 (5) capable of driving the lifting mechanism.

2. The knee joint rehabilitation training device according to claim 1, characterized in that: The driving mechanism comprises a rectangular groove (9) provided on the top of the bottom plate (8), a rectangular block (12) slidingly arranged inside the rectangular groove (9), a screw rod (10) arranged inside the rectangular groove (9), one end of the screw rod (10) passing through the rectangular block (12) and being rotatably connected to the bottom plate (8) via a bearing, the output end of the motor (7) passing through the bottom plate (8) and being fixedly connected to the other end of the screw rod (10), the top of the rectangular block being connected to the rotating plate (3) via a main connecting portion, and the screw rod (10) being threadedly connected to the rectangular block (12).

3. The knee joint rehabilitation training device according to claim 2, characterized in that: The main connection portion package rectangular block has a slot (11) at the top, the bottom of the rotating plate (3) is rotatably connected to a connecting block (14) via a rotating shaft, and an inserting block (13) is fixed at the bottom of the connecting block (14), and the inserting block (13) can be inserted into the slot (11).

4. The knee joint rehabilitation training device according to claim 1, characterized in that: The lifting mechanism comprises two rectangular grooves (6) provided on the facing surfaces of the two support columns (4), two rectangular blocks (17) slidingly arranged inside the two rectangular grooves (6), two screw rods (16) arranged inside the two rectangular grooves (6), one end of the two screw rods (16) passing through the two rectangular blocks (17) and being rotatably connected to the support column (4) through a bearing, the output end of the two motors (5) passing through the support column (4) and being fixedly connected to the other end of the two screw rods (16), the two rectangular blocks (17) being connected to the rotating plate (3) through a secondary connection portion, and the two screw rods (16) being threadedly connected to the two rectangular blocks (17).

5. The knee joint rehabilitation training device according to claim 4, characterized in that: The secondary connection part comprises a fixed block (20) fixed on the rectangular block, a semi-cylindrical groove (21) is provided on the fixed block (20), and a sliding groove (18) is provided on one side of the rotating plate (3) facing the two supporting columns (4), and a sliding column (19) slides in the sliding groove (18).

6. The knee joint rehabilitation training device according to claim 1, characterized in that: A baffle (15) is fixed on the top of the rotating plate (3).

7. The knee joint rehabilitation training device according to claim 1, characterized in that: A soft pad (1) is fixed on the side of the bottom plate (8) away from the motor (7).

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