Stroke patient upper limb posture training device

Abstract

The application provides a stroke patient upper limb counter-harness posture training device, which comprises a mounting frame, a mounting assembly is arranged at the bottom of the mounting frame, a first training arm is hingedly connected to the mounting frame through a torsional spring, a second training arm and a third training arm are hingedly connected to one end of the first training arm through torsional springs in sequence, a driving motor is arranged on the mounting frame, the driving motor is connected with the first training arm through a driving mechanism to drive the first training arm to reciprocating swing, the first training arm and the driving mechanism are connected through a first switching mechanism, the first training arm is fixed through the first switching mechanism and the power of the driving motor is converted into the power for driving the second training arm to swing, and the second training arm and the third training arm are connected through a second switching mechanism. The device can automatically form passive stretching and counter training for each joint of the upper limb of the patient, effectively solves the fatigue problem caused by long-term operation of medical staff, and greatly reduces the labor cost of rehabilitation training.

Description

Technical Field

[0001] This invention specifically relates to a training device for upper limb resistance basket-carrying posture in stroke patients. Background Technology

[0002] Stroke is a common cerebrovascular disease, and most patients experience varying degrees of upper limb motor dysfunction after the onset of the stroke. This mainly manifests as upper limb muscle spasms, joint stiffness, and limited limb movement. Abnormal basket-carrying posture is one of the most common sequelae, severely impacting patients' ability to move their upper limbs independently and their daily living skills. Targeted upper limb rehabilitation training for the basket-carrying posture is divided into active and passive training. Active training requires the patient to stretch their hand muscles themselves, while passive training requires assistance from medical staff.

[0003] Currently, passive rehabilitation training for stroke patients using the "basket-like" posture involves medical staff manually moving and bending various joints of the patient's upper limbs, such as the shoulder, elbow, and wrist, to complete limb flexion and extension exercises. However, due to the long rehabilitation cycle and the extended duration of each training session, medical staff need to move the patient's limbs for extended periods, which easily leads to physical fatigue. This not only reduces training efficiency but also increases the risk of deformed training movements and loss of control over force due to fatigue.

[0004] Current clinical rehabilitation training relies heavily on manual labor, resulting in high labor costs and poor training effects, which greatly reduces the rehabilitation efficiency of patients' upper limb motor function. Therefore, a training device for upper limb resistance basket posture in stroke patients is proposed to solve the above problems. Summary of the Invention

[0005] Therefore, it is necessary to provide a training device for upper limb resistance basket posture for stroke patients, which addresses the current practice of passive resistance basket posture training, where patients lie in bed and medical staff move and bend their joints. This method requires medical staff to manually control the movement of the patient's limb joints for a long time, resulting in poor training effect and easy fatigue for medical staff.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a training device for upper limb resistance basket-carrying posture in stroke patients, comprising: Mounting bracket, with mounting components at the bottom; The first training arm is hinged to the mounting frame by a torsion spring, and the second training arm and the third training arm are sequentially hinged to one end of the first training arm by a torsion spring. A drive motor is mounted on the mounting bracket and connected to the first training arm via a drive mechanism to drive the first training arm to swing back and forth. A first switching mechanism is connected to the first training arm and the drive mechanism to fix the first training arm and convert the power of the drive motor into power to drive the second training arm to swing; and The second switching mechanism is connected to the second training arm and the third training arm to fix the second training arm after the second training arm rotates to be perpendicular to the mounting frame and to convert the power of the drive motor into the power to drive the third training arm to swing.

[0007] In one embodiment, straps are provided on one side of the first training arm and the second training arm, and a hand limiting rod is provided on one side of the third training arm.

[0008] In one embodiment, the installation components include: The mounting frame is slidably connected to the mounting bracket, and a snap-fit ​​bracket is provided on one side; and The threaded knob is screwed onto the clip holder.

[0009] In one embodiment, the drive mechanism includes: A sector gear is mounted on the output shaft of the drive motor; The drive wheel is rotatably mounted on the mounting bracket, and a driven gear is provided on one side of it. When the sector gear rotates, it can mesh with the drive wheel. A connecting column is provided on the other side of the drive wheel. The pull rope has a connecting loop at one end and connects to the second training arm at the other end; the connecting loop is fitted onto the connecting post. The locking assembly is provided in two sets, which are respectively located in the mounting slots opened on the first training arm and the second training arm, so as to selectively fix or release the pull rope.

[0010] In one embodiment, the locking component includes: An elliptical ring is attached to the pull cord; An elliptical plate is rotatably mounted in a mounting slot and connected to a drive plate, the bottom of which has a sliding groove; and The drive rod is slidably mounted on the side wall of the mounting groove and extends outward. The drive rod is equipped with a push column, which is slidably engaged in the groove.

[0011] In one embodiment, the first switching mechanism includes: A first push rod is slidably mounted on a mounting bracket and has a first inclined groove. The end of the first push rod abuts against the end of a drive rod located on the first training arm and can extend into the mounting groove; and The first push block is slidably mounted on the mounting bracket and is provided with a first drive column, which is slidably engaged in the first inclined groove.

[0012] In one embodiment, the end of the first training arm is provided with a fixing component that is connected to the second training arm. The fixing component fixes the positions of the first training arm and the second training arm, and releases the fixing of the second training arm after the position of the first training arm is fixed.

[0013] In one embodiment, the fixing component includes: A locking rod is slidably inserted through the end of the first training arm, and a slot is provided at one end of the second training arm, with the end of the locking rod engaged in the slot; and The connecting rod is hinged at one end to the locking rod and at the other end to the drive plate located on the first training arm.

[0014] In one embodiment, the second switching mechanism includes: A transverse frame is slidably mounted on a mounting frame, and a second inclined groove is provided at one end of the frame. The second push rod is located at the end of the transverse frame. The end of the second push rod abuts against the end of the drive rod located on the second training arm and can extend into the mounting slot. The second lever is slidably mounted on the mounting bracket, and its end is provided with a second drive post, which is slidably mounted within the second inclined groove; and A power transmission assembly, mounted on the drive wheel, drives the third training arm to swing after the second training arm is fixed.

[0015] In one embodiment, the power transmission component includes: The drive sleeve is rotatably mounted on the mounting bracket and connected to the drive wheel via a timing belt mechanism; The first gear is located at the end of the third training arm; and The second gear plate is rotatably mounted on the transverse frame and spaced apart from the first gear plate. A transmission rod is mounted on the second gear plate and is slidably inserted into the drive sleeve.

[0016] Compared with the prior art, the present invention has at least the following advantages: When in use, this device is installed on the edge of the hospital bed using mounting components. The patient's upper arm is fixed to the first training arm, the patient's forearm to the second training arm, and the patient's hand to the third training arm. A drive motor and drive mechanism work together to swing the first training arm back and forth, moving the patient's entire arm along the shoulder joint. A second switching mechanism can fix the position of the first training arm, ensuring the patient's upper and forearms are perpendicular to the bed. The drive motor then controls the second training arm to swing, moving the patient's forearm back and forth along the elbow joint. After the second training arm rotates to a vertical position, the second switching mechanism fixes its position, making the patient's forearm perpendicular to the bed. The drive motor then drives the third training arm to swing, moving the patient's hand back and forth along the wrist joint. This replaces manual manipulation of the patient's limb joints, achieving automated passive training of various upper limb joints. It effectively activates upper limb muscle activity, improves joint mobility, effectively solves the fatigue problem caused by long-term operation by medical staff, significantly reduces the labor costs of rehabilitation training, and offers convenient and quick switching, significantly improving the effectiveness of rehabilitation training. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of a training device for upper limb resistance basket-carrying posture in stroke patients provided by the present invention; Figure 2 This is a schematic diagram of the structure of the fixing frame in the upper limb resistance basket posture training device for stroke patients according to the present invention; Figure 3 This is a schematic diagram of the mounting frame and the first synchronous belt mechanism in the upper limb resistance basket posture training device for stroke patients according to the present invention. Figure 4 This is a schematic diagram of the locking component in a training device for upper limb resistance basket carrying posture in stroke patients according to the present invention. Figure 5 This is a schematic diagram of the connection structure of the first training arm, the second training arm, and the third training arm in a training device for upper limb resistance basket posture of stroke patients according to the present invention. Figure 6 This is a schematic diagram of the disassembled structure of the first training arm in a training device for upper limb resistance basket posture of stroke patients according to the present invention. Figure 7 This is a schematic diagram of the locking plate in a training device for upper limb resistance basket carrying posture of stroke patients according to the present invention; Figure 8This is a schematic diagram of the second and third training arms from another perspective in the upper limb resistance basket posture training device for stroke patients of the present invention.

[0019] Figure label: 1. Mounting bracket; 2. Mounting frame; 3. Snap-fit ​​bracket; 4. Threaded knob; 5. Drive motor; 6. Sector gear; 7. Drive wheel; 8. Connecting column; 9. Driven gear; 10. Drive sleeve; 11. Synchronous belt mechanism; 12. First training arm; 13. Second training arm; 14. Mounting slot; 15. Third training arm; 16. Hand limit bar; 17. Pull rope; 18. Elliptical ring; 19. Connecting ring; 20. Elliptical plate; 21. 1. Drive plate; 22. Slide groove; 23. Drive rod; 24. Push column; 25. Locking rod; 26. Connecting rod; 27. Slot; 28. First gear plate; 29. ​​First push rod; 30. First inclined groove; 31. First lever; 32. First drive column; 33. Transmission rod; 34. Second gear plate; 35. Transverse frame; 36. Second inclined groove; 37. Second push rod; 38. Second lever; 39. Second drive column; 40. Strap. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] Example: Please see Figure 1 , 2The present invention provides a training device for upper limb resistance basket posture of stroke patients, including a mounting frame 1, a mounting component at the bottom of the mounting frame 1, the mounting component including a mounting frame 2 slidably connected to the mounting frame 1, a snap-fit ​​bracket 3 on one side of the mounting frame 2, and a threaded knob 4 screwed onto the snap-fit ​​bracket 3.

[0024] The device can be fixed to the edge of the hospital bed by using the threaded knob 4 and the snap-fit ​​bracket 3. When switching from shoulder joint movement to elbow joint movement, the arm posture changes from straight to vertical. The upper arm is perpendicular to the body and the forearm is parallel to the body. The position of the moving parts will change. The mounting bracket 1 can be slid on the snap-fit ​​bracket 3 to adapt to the position change of the moving parts, thus improving the practicality of the device.

[0025] Please see Figure 1 , 5 In this embodiment, a first training arm 12 is hinged to the mounting frame 1 via a torsion spring. A second training arm 13 and a third training arm 15 are sequentially hinged to one end of the first training arm 12 via torsion springs. Straps 40 are provided on one side of both the first and second training arms 12 and 13, and a hand-limiting rod 16 is provided on one side of the third training arm 15. Preferably, two sets of hand-limiting rods 16 are arranged at intervals to form a gap to accommodate the patient's hand. The first training arm 12 can be fixed to the patient's upper arm, and the second training arm 13 can be fixed to the patient's forearm using the straps 40, allowing the patient's hand to move between the two sets of hand-limiting rods 16, completing the preliminary preparation work.

[0026] Please see Figure 1 , 5 In this embodiment, a drive motor 5 is provided on the mounting frame 1. The drive motor 5 is connected to the first training arm 12 through a drive mechanism to drive the first training arm 12 to swing back and forth. The drive mechanism includes a sector gear 6 provided on the output shaft of the drive motor 5. A drive wheel 7 is rotatably provided on the mounting frame 1. A driven gear 9 is provided on one side of the drive wheel 7. When the sector gear 6 rotates, it can mesh with the drive wheel 7. A connecting post 8 is provided on the other side of the drive wheel 7. It also includes a pull rope 17. A connecting ring 19 is provided at one end of the pull rope 17, and the other end is connected to the second training arm 13. The connecting ring 19 is sleeved on the connecting post 8. Mounting grooves 14 are provided on both the first training arm 12 and the second training arm 13. Locking components are provided in both sets of mounting grooves 14. The locking components can selectively fix or release the pull rope 17.

[0027] The locking assembly includes an elliptical ring 18 mounted on a pull rope 17, an elliptical plate 20 rotatably mounted in a mounting groove 14, a drive plate 21 connected to the elliptical plate 20, a sliding groove 22 at the bottom of the drive plate 21, a slidable and outwardly extending drive rod 23 mounted on the side wall of the mounting groove 14, a push post 24 mounted on the drive rod 23, and the push post 24 slidably engaged in the sliding groove 22.

[0028] In the initial state, the positions of the first training arm 12 and the second training arm 13 are not fixed, and the elliptical ring 18 is locked inside the elliptical plate 20 and intersects with the elliptical plate 20, thus fixing the position of the elliptical ring 18. This allows the pull rope 17 to move only in the portion between the elliptical ring 18 and the connecting ring 19. The drive motor 5 drives the sector gear 6 to rotate, and the sector gear 6 can intermittently control the driven gear 9 to rotate during rotation, thereby pulling the first training arm 12 to swing through the pull rope 17, providing stretching and movement for the patient's shoulder joint. Furthermore, the drive rod 23 can be controlled to slide within the slide groove 22. The interaction between the drive rod 23 and the slide groove 22 controls the rotation of the drive plate 21, causing the elliptical plate 20 to rotate until it coincides with the elliptical ring 18, allowing the elliptical ring 18 to be removed and releasing the fixation of the pull rope 17.

[0029] Please see Figures 4 to 7 In this embodiment, the first training arm 12 and the drive mechanism are connected by a first switching mechanism. The first switching mechanism fixes the first training arm 12 and converts the power of the drive motor 5 into the power to drive the second training arm 13 to swing. The first switching mechanism includes a first push rod 29 that is slidably mounted on the mounting frame 1. The first push rod 29 has a first inclined groove 30. The end of the first push rod 29 abuts against the end of the drive rod 23 located on the first training arm 12 and can extend into the mounting groove 14. A first lever 31 is slidably mounted on the mounting frame 1. A first drive column 32 is mounted on the first lever 31 and is slidably engaged in the first inclined groove 30.

[0030] The first drive column 32 can be slid by moving the first lever 31, which in turn drives the first push rod 29 to slide through the cooperation of the first drive column 32 and the first inclined groove 30. This pushes the drive rod 23 located on the first training arm 12 to slide, thereby releasing the fixation of one set of elliptical rings 18. At the same time, the first push rod 29 is inserted into the first training arm 12 to fix its position. Restarting the drive motor 5 controls the driven gear 9 to rotate, which allows the second training arm 13 to swing back and forth by pulling the rope 17, thereby exercising the elbow joint. It should be noted that the position of the device needs to be adjusted when switching from shoulder joint training to elbow joint training to adapt to the change in the position of movement.

[0031] Please see Figures 6 to 8In this embodiment, a fixing component is provided at the end of the first training arm 12 to connect with the second training arm 13. The fixing component fixes the positions of the first training arm 12 and the second training arm 13, and releases the fixing of the second training arm 13 after the position of the first training arm 12 is fixed. The fixing component includes a locking rod 25 that slides through the end of the first training arm 12. One end of the second training arm 13 has a slot 27, and the end of the locking rod 25 is engaged in the slot 27. One end of the connecting rod 26 is hinged to the locking rod 25, and the other end is eccentrically hinged to the drive plate 21 located on the first training arm 12.

[0032] When the first training arm 12 is not fixed, the locking rod 25 fixes the positions of the first training arm 12 and the second training arm 13, preventing the second training arm 13 from swinging at the end of the first training arm 12 during shoulder joint training, thus improving the practical value of the device. Furthermore, when the first push rod 29 slides to fix the position of the first training arm 12 and drives one set of drive plates 21 to rotate, the locking rod 25 can slide out of the slot 27 via the eccentrically hinged connecting rod 26, thereby releasing the fixation of the second training arm 13 and facilitating elbow joint training.

[0033] Please see Figure 3 , 4 8. In this embodiment, the second training arm 13 and the third training arm 15 are connected by a second switching mechanism. The second switching mechanism fixes the second training arm 13 after it rotates to be perpendicular to the mounting frame 1 and converts the power of the drive motor 5 into the power to drive the third training arm 15 to swing. The second switching mechanism includes a transverse frame 35 that can slide laterally on the mounting frame 1. One end of the transverse frame 35 has a second inclined groove 36. The end of the transverse frame 35 is provided with a second push rod 37. The end of the second push rod 37 abuts against the end of the drive rod 23 located on the second training arm 13 and can extend into the mounting groove 14. A second lever 38 is slidably provided on the mounting frame 1. The end of the second lever 38 is provided with a second drive column 39. The second drive column 39 is slidably provided in the second inclined groove 36. A power transmission component is provided on the drive wheel 7. The power transmission component drives the third training arm 15 to swing after the second training arm 13 is fixed.

[0034] The power transmission assembly includes a drive sleeve 10 rotatably mounted on the mounting frame 1. The drive sleeve 10 is connected to the drive wheel 7 via a synchronous belt mechanism 11. A first gear 28 is provided at the end of the third training arm 15. A second gear 34 is rotatably mounted on the transverse frame 35. The second gear 34 is spaced apart from the first gear 28. A transmission rod 33 is provided on the second gear 34. The transmission rod 33 is slidably inserted into the drive sleeve 10.

[0035] When passive wrist joint movement is required, the second training arm 13 can be rotated to be perpendicular to the bed, and the second lever 38 can be activated. During the movement, the second lever 38 can drive the transverse frame 35 and the second push rod 37 to slide through the cooperation of the second drive column 39 and the second inclined groove 36, thereby unlocking the position of the elliptical ring 18 on the second training arm 13. At the same time, the second push rod 37 extends into the mounting groove 14 to fix the position of the second training arm 13. During the rotation of the drive wheel 7, the second training arm 13 cannot be controlled to swing by the pull rope 17. During the sliding of the transverse frame 35, the second gear plate 34 slides and meshes with the first gear plate 28. During the rotation of the drive wheel 7, the second gear plate 34 can be driven to reciprocate through the synchronous belt mechanism 11 to control the reciprocating swing of the third training arm 15 through meshing with the first gear plate 28, thereby driving wrist joint movement.

[0036] Specific usage and beneficial effects of the present invention: When in use, the device is installed on the edge of the hospital bed using mounting components. The patient's upper arm is fixed to the first training arm 12, the patient's forearm is fixed to the second training arm 13, and the patient's palm is fixed to the third training arm 15. The first training arm 12 can be reciprocated by the drive motor 5 and the drive mechanism, thus moving the patient's entire arm along the shoulder joint. The position of the first training arm 12 can be fixed by the second switching mechanism, ensuring the patient's upper and lower arms are placed perpendicular to the bed. Then, the second training arm 13 can be controlled by the drive motor 5 to swing, moving the patient's forearm along the elbow joint. The joints can swing back and forth. After the second training arm 13 rotates to a vertical position, the position of the second training arm 13 can be fixed by the second switching mechanism, so that the patient's forearm is perpendicular to the bed. The third training arm 15 is driven by the drive motor 5 to swing back and forth, so that the patient's palm swings back and forth along the wrist joint. This replaces manual manipulation of the patient's limb joints, realizes automated passive training of various joints of the upper limb, effectively activates the activity of upper limb muscles, improves joint mobility, effectively solves the fatigue problem caused by long-term operation of medical staff, significantly reduces the labor cost of rehabilitation training, and the switching is convenient and quick, significantly improving the rehabilitation training effect.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A training device for upper limb resistance basket-carrying posture in stroke patients, characterized in that, Including: Mounting bracket (1), the bottom of which is provided with mounting components; The first training arm (12) is hinged to the mounting frame (1) by a torsion spring, and the second training arm (13) and the third training arm (15) are sequentially hinged to one end of the first training arm (12) by a torsion spring. A drive motor (5) is mounted on the mounting bracket (1) and connected to the first training arm (12) via a drive mechanism to drive the first training arm (12) to swing back and forth. The first switching mechanism is connected to the first training arm (12) and the drive mechanism to fix the first training arm (12) and convert the power of the drive motor (5) into the power to drive the second training arm (13) to swing. and The second switching mechanism is connected to the second training arm (13) and the third training arm (15) to fix the second training arm (13) after the second training arm (13) rotates to be perpendicular to the mounting frame (1) and convert the power of the drive motor (5) into driving the third training arm (15) to swing.

2. The upper limb resistance basket-carrying posture training device for stroke patients according to claim 1, characterized in that: The first training arm (12) and the second training arm (13) are each provided with a strap (40) on one side, and the third training arm (15) is provided with a palm limiting rod (16) on one side.

3. The upper limb resistance basket-carrying posture training device for stroke patients according to claim 1, characterized in that, The installation components include: The mounting frame (2) is slidably connected to the mounting bracket (1), and a snap-fit ​​bracket (3) is provided on one side of it; and The threaded knob (4) is screwed onto the clip bracket (3).

4. The upper limb resistance basket-carrying posture training device for stroke patients according to claim 1, characterized in that, The driving mechanism includes: A sector gear (6) is mounted on the output shaft of the drive motor (5); The drive wheel (7) is rotatably mounted on the mounting bracket (1), and a driven gear (9) is provided on one side of it. When the sector gear (6) rotates, it can mesh with the drive wheel (7). A connecting column (8) is provided on the other side of the drive wheel (7). The pull rope (17) has a connecting ring (19) at one end and is connected to the second training arm (13) at the other end. The connecting ring (19) is sleeved on the connecting post (8). and The locking assembly is provided in two sets, and is located in the mounting slots (14) opened on the first training arm (12) and the second training arm (13) respectively, so as to selectively fix or release the pull rope (17).

5. The upper limb resistance basket-carrying posture training device for stroke patients according to claim 4, characterized in that, The locking component includes: An elliptical ring (18) is provided on the pull rope (17); An elliptical plate (20) is rotatably disposed within the mounting groove (14) and connected to a drive plate (21), the bottom of which has a sliding groove (22); and The drive rod (23) is slidably disposed on the side wall of the mounting groove (14) and extends outward. The drive rod (23) is provided with a push column (24), which is slidably engaged in the groove (22).

6. A training device for upper limb resistance basket-carrying posture in stroke patients according to claim 5, characterized in that, The first switching mechanism includes: A first push rod (29) is slidably mounted on the mounting bracket (1) and has a first inclined groove (30). The end of the first push rod (29) abuts against the end of the drive rod (23) located on the first training arm (12) and can extend into the mounting groove (14); and The first lever (31) is slidably mounted on the mounting bracket (1) and is provided with a first drive column (32), which is slidably engaged in the first inclined groove (30).

7. The upper limb resistance basket-carrying posture training device for stroke patients according to claim 5, characterized in that: The first training arm (12) is provided with a fixing component at its end that is connected to the second training arm (13). The fixing component fixes the positions of the first training arm (12) and the second training arm (13), and releases the fixing of the second training arm (13) after the position of the first training arm (12) is fixed.

8. A training device for upper limb resistance basket-carrying posture in stroke patients according to claim 7, characterized in that, The fixing component includes: A locking rod (25) is slidably inserted through the end of the first training arm (12), and a slot (27) is provided at one end of the second training arm (13), the end of the locking rod (25) being engaged in the slot (27); and The connecting rod (26) is hinged at one end to the locking rod (25) and eccentrically hinged at the other end to the drive plate (21) located on the first training arm (12).

9. A training device for upper limb resistance basket-carrying posture in stroke patients according to claim 6, characterized in that, The second switching mechanism includes: A transverse frame (35) is slidably mounted on the mounting frame (1), and a second inclined groove (36) is provided at one end of it. The second push rod (37) is disposed at the end of the transverse frame (35). The end of the second push rod (37) abuts against the end of the drive rod (23) located on the second training arm (13) and can extend into the mounting groove (14). The second lever (38) is slidably disposed on the mounting bracket (1), and its end is provided with a second drive post (39), which is slidably disposed in the second inclined groove (36); and A power transmission assembly is provided on the drive wheel (7) to drive the third training arm (15) to swing after the second training arm (13) is fixed.

10. A training device for upper limb resistance basket-carrying posture in stroke patients according to claim 9, characterized in that, The power transmission component includes: The drive sleeve (10) is rotatably mounted on the mounting bracket (1) and connected to the drive wheel (7) via a timing belt mechanism (11); The first toothed disc (28) is disposed at the end of the third training arm (15); and The second gear (34) is rotatably mounted on the transverse frame (35) and spaced apart from the first gear (28). A transmission rod (33) is mounted on the second gear (34) and is slidably inserted into the drive sleeve (10).

Images