Rehabilitation exercise device for orthopedics department

Abstract

The invention relates to the technical field of rehabilitation equipment, and discloses an orthopedic rehabilitation exercise device which comprises a base, a supporting plate, a first rotating shaft, a rotating plate, a second rotating shaft, a pedal, a liftable seat, a first driving part and a second driving part. In the rehabilitation exercise process, the supporting plates on the two sides can move in the length direction of the base in a reciprocating mode under driving of the first driving piece. And finally, the pedals on the two sides are driven to move in a reciprocating mode in the length direction of the base. Therefore, the feet of the patient are driven to reciprocate back and forth, and the lower limbs of the patient can swing back and forth. Under the driving of the second driving chamber, the first rotating shafts on the two sides can rotate relative to the supporting plates on the two sides. And finally, the two pedals are driven to rotate, so that the two feet of the patient are driven to do circular motion, and the knee bending action of the lower limbs of the patient is achieved. Therefore, the exercise modes are more diversified, and the rehabilitation exercise effect is improved.

Description

Technical Field

[0001] This application relates to the field of rehabilitation equipment technology, and in particular to an orthopedic rehabilitation exercise device. Background Technology

[0002] A related technology (publication number: CN115624721B) discloses an exercise device for orthopedic patient rehabilitation, which has two rehabilitation exercise units on its main frame. Each rehabilitation exercise unit includes a first rehabilitation component and a second rehabilitation component rotatably connected to the main frame. The second rehabilitation component includes a first pedal, and the first rehabilitation component includes a massage element disposed above the first pedal, the massage element including a receiving area. When the patient's foot rests on the first pedal, the second rehabilitation component swings in a direction toward or away from the seat under the drive of a preset force. The receiving area receives the patient's leg, and when the second rehabilitation component swings, the receiving area alternately shrinks and expands to massage the patient's leg.

[0003] In the process of implementing the technical solution disclosed herein, it was found that the above technical solution has at least the following problems: This orthopedic patient rehabilitation exercise device can perform swinging exercises for the patient's lower limbs and simultaneously massage the lower limbs during the swinging process. Its diverse functions enhance the effectiveness of rehabilitation exercises and broaden its applicability. However, it can only move the patient's lower limbs and cannot perform knee bending exercises.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as an introduction to the detailed explanations that follow.

[0006] This disclosure provides an orthopedic rehabilitation exercise device to solve the problems mentioned in the background art.

[0007] In some technical solutions, the orthopedic rehabilitation exercise device includes: a base; support plates located above the base along its height direction and on both sides above the base along its width direction, with the planes of the support plates on both sides parallel to each other; first rotating shafts rotatably passing through the support plates on both sides, with the axes of the first rotating shafts on both sides coinciding with each other; rotating plates respectively installed at opposite ends of the first rotating shafts on both sides; second rotating shafts rotatably passing through the rotating plates on both sides, with the axes of the second rotating shafts on both sides parallel to the axes of the first rotating shafts on both sides; pedals respectively installed at opposite ends of the second rotating shafts on both sides; a height-adjustable seat installed on the top surface of the base for the user to sit on; a first driving member installed between the base and the support plates on both sides, configured to drive the support plates on both sides to reciprocate along the length direction of the base; and a second driving member installed between the support plates on both sides and the first rotating shafts on both sides, configured to drive the first rotating shafts on both sides to rotate relative to the support plates on both sides.

[0008] Optionally, the base includes: a base plate, the liftable seat is mounted on the top surface of the base plate, the first drive component is mounted between the base plate and the support plates on both sides; and a base, which is respectively mounted at the four corners of the bottom surface of the base plate.

[0009] Optionally, the first driving component includes: a guide rail, mounted on the top surface of the base plate along its length and located on both sides of the base plate along its width; sliders, respectively mounted on the guide rails on both sides; movable plates, respectively mounted on the sliders on both sides, and support plates on both sides, respectively mounted on the movable plates on both sides; a third rotating shaft, rotatably passing through the base plate along its height and located at both ends of each guide rail; first synchronous belt gears, respectively mounted on the four third rotating shafts, with all four first synchronous belt gears located above the base plate along its height; a first synchronous toothed belt, fitted onto the four first synchronous belt gears; and connecting plates, respectively mounted on the movable plates on both sides and connected to the first synchronous toothed belt, with the first synchronous toothed belt located between the connecting plates on both sides along its width; wherein any of the third rotating shafts can be controlled to rotate, causing the movable plates on both sides to reciprocate along the length of the base.

[0010] Optionally, the first driving component further includes: a first support rod, mounted on the top surface of the base plate along the height direction of the base; a first mounting plate, mounted on the end of the first support rod; a first motor, mounted on the first mounting plate; a first gear, mounted on the rotating end of the first motor; and a second gear, meshing with the first gear and mounted on any of the third rotating shafts.

[0011] Optionally, the second driving component includes: a second support rod, which is respectively installed on the opposite sides of the support plates on both sides along the width direction of the base; a second mounting plate, which is respectively installed on the ends of the second support rod on both sides; a second motor, which is respectively installed on the second mounting plates on both sides; and a coupling, which is respectively installed between the rotating ends of the second motor on both sides and the first rotating shaft on both sides.

[0012] Optionally, the height-adjustable seat includes: a third support rod, mounted on the top surface of the base plate along the height direction of the base; a third mounting plate, mounted on the end of the third support rod; an electric telescopic rod, mounted on the third mounting plate along the height direction of the base, with the moving end of the electric telescopic rod facing away from the base plate; and a seat plate, mounted on the moving end of the electric telescopic rod.

[0013] Optionally, the height-adjustable seat further includes: an optical axis that slidably passes through the third mounting plate along the height direction of the base and is connected to the seat plate; and a linear bearing that is fitted onto the optical axis and mounted on the third mounting plate.

[0014] Optionally, it further includes: a cylindrical seat, which is respectively installed on the opposite surfaces of the two support plates and respectively fitted onto the first rotating shafts on both sides, wherein the axis of the cylindrical seat on both sides coincides with the axis of the first rotating shaft on both sides; a second synchronous belt gear, which is respectively fitted onto the cylindrical seat on both sides; a third synchronous belt gear, which is respectively installed on the second rotating shaft on both sides; and a second synchronous toothed belt, which is respectively fitted between the second synchronous belt gear on both sides and the third synchronous belt gear on both sides.

[0015] Optionally, it further includes: a first bearing housing, which is respectively installed on the support plates on both sides and respectively sleeved on the first rotating shafts on both sides; and a first bearing, which is respectively installed between the first bearing housings on both sides and the first rotating shafts on both sides.

[0016] Optionally, it further includes: a second bearing housing, which is respectively installed on the two rotating plates on both sides and respectively sleeved on the two second rotating shafts on both sides; and a second bearing, which is respectively installed between the two second bearing housings on both sides and the two second rotating shafts on both sides.

[0017] The orthopedic rehabilitation exercise device disclosed herein can achieve the following technical effects: This disclosure provides an orthopedic rehabilitation exercise device, comprising a base, support plates, first rotating shafts, rotating plates, second rotating shafts, pedals, a height-adjustable seat, a first drive component, and a second drive component. The support plates are located above the base along its height and on both sides of the base along its width. The planes of the two support plates are parallel to each other and are used to support and install related components of the device. The first rotating shafts are rotatably inserted through the two support plates, with their axes coinciding, allowing them to rotate relative to the support plates. The rotating plates are mounted on opposite ends of the two first rotating shafts and rotate under their respective drives. The second rotating shafts are rotatably inserted through the two rotating plates, with their axes parallel to the axes of the two first rotating shafts, allowing them to rotate relative to the rotating plates. The pedals are mounted on opposite ends of the two second rotating shafts and are used to support the patient's feet. The height-adjustable seat is mounted on the top surface of the base for the user to sit on and has an adjustable height function to accommodate patients of different heights. The first driving component is installed between the base and the two side support plates to provide driving force, causing the two side support plates to reciprocate along the length of the base. The second driving component is installed between the two side support plates and the two side first rotating shafts to provide driving force, causing the two side first rotating shafts to rotate relative to the two side support plates.

[0018] In use, the patient sits in the height-adjustable seat with both feet on the two pedals to begin rehabilitation exercises. The patient's waist can be secured to the seat with straps, and their feet to the pedals. During the exercises, the first drive mechanism moves the side support plates back and forth along the length of the base. This, in turn, moves the two first rotating shafts back and forth, ultimately causing the pedals to move back and forth along the base. This causes the patient's feet to swing back and forth, achieving a reciprocating motion of the lower limbs. The second drive mechanism rotates the two first rotating shafts relative to the support plates. This causes the two rotating plates to rotate continuously, ultimately rotating the pedals, causing the patient's feet to move in a circular motion, achieving knee flexion. Therefore, this system enables both reciprocating leg swinging and knee flexion, providing more diverse exercise methods and improving the effectiveness of rehabilitation.

[0019] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1 This is a cross-sectional structural schematic diagram of an orthopedic rehabilitation exercise device provided in an embodiment of this disclosure; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 yes Figure 1 Enlarged structural diagram at point B; Figure 4 yes Figure 1 Enlarged structural diagram at point C; Figure 5 This is a front view schematic diagram of an orthopedic rehabilitation exercise device provided in an embodiment of this disclosure; Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure at point DD; Figure 7 This is a cross-sectional structural schematic diagram of an orthopedic rehabilitation exercise device provided in an embodiment of this disclosure; Figure 8 yes Figure 7 A magnified structural diagram at point E in the middle.

[0021] Figure label: 1. Support plate; 2. First rotating shaft; 3. Rotating plate; 4. Second rotating shaft; 5. Pedal; 6. Base plate; 7. Base; 8. Guide rail; 9. Slider; 10. Moving plate; 11. Third rotating shaft; 12. First synchronous belt gear; 13. First synchronous toothed belt; 14. Connecting plate; 15. First support rod; 16. First mounting plate; 17. First motor; 18. First gear; 19. Second gear; 20. Second support rod; 21. Second mounting plate; 22. Second motor; 23. Coupling; 24. Third support rod; 25. Third mounting plate; 26. Electric telescopic rod; 27. Seat plate; 28. Optical shaft; 29. ​​Linear bearing; 30. Cylindrical seat; 31. Second synchronous belt gear; 32. Third synchronous belt gear; 33. Second synchronous toothed belt; 34. First bearing seat; 35. Second bearing seat. Detailed Implementation

[0022] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0023] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0024] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0025] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0026] Unless otherwise stated, the term "multiple" means two or more.

[0027] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0028] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0030] Combination Figures 1 to 8As shown, this embodiment of the present disclosure provides an orthopedic rehabilitation exercise device, including a base, a support plate 1, a first rotating shaft 2, a rotating plate 3, a second rotating shaft 4, a pedal 5, a height-adjustable seat, a first driving component, and a second driving component. The support plate 1 is located above the base along its height direction and on both sides of the base along its width direction. The planes of the two support plates 1 are parallel to each other and are used to support and install related components of the device. The first rotating shaft 2 is rotatably inserted through the two support plates 1, and the axes of the two first rotating shafts 2 coincide, allowing them to rotate relative to the two support plates 1. The rotating plates 3 are respectively installed at opposite ends of the two first rotating shafts 2 and rotate under the drive of the two first rotating shafts 2. The second rotating shaft 4 is rotatably inserted through the two rotating plates 3, and the axes of the two second rotating shafts 4 are parallel to the axes of the two first rotating shafts 2, allowing them to rotate relative to the two rotating plates 3. The pedal 5 is respectively installed at opposite ends of the two second rotating shafts 4 and is used to support the patient's feet. A height-adjustable seat is installed on the top surface of the base for the user to sit on. It has an adjustable height to accommodate patients of different heights. A first drive unit is installed between the base and the two side support plates 1 to provide driving force, causing the two side support plates 1 to reciprocate along the length of the base. Second drive units are respectively installed between the two side support plates 1 and the two side first rotating shafts 2 to provide driving force, causing the two side first rotating shafts 2 to rotate relative to the two side support plates 1.

[0031] This disclosure provides an orthopedic rehabilitation exercise device. In use, the patient sits in a height-adjustable seat with both feet on two pedals 5 to perform rehabilitation exercises. The patient's waist can be secured to the height-adjustable seat using straps, and the patient's feet can be secured to the two pedals 5 respectively. During rehabilitation exercises, driven by a first drive unit, the two side support plates 1 reciprocate along the length of the base. This, in turn, drives the two first rotating shafts 2 to reciprocate, ultimately driving the two pedals 5 to reciprocate along the length of the base. This causes the patient's feet to move back and forth, achieving the reciprocating swing of the lower limbs. Driven by a second drive unit, the two first rotating shafts 2 rotate relative to the two side support plates 1. This, in turn, drives the two rotating plates 3 to rotate continuously, ultimately driving the two pedals 5 to rotate, thereby causing the patient's feet to perform circular motions, achieving the knee bending movement of the lower limbs. Therefore, it can achieve both the reciprocating swing of the patient's lower limbs and the knee bending movement. The exercise methods are more diverse, improving the rehabilitation exercise effect.

[0032] Optionally, combined Figure 1 , Figure 5 and Figure 7 As shown, the base includes a base plate 6 and a base 7. A height-adjustable seat is mounted on the top surface of the base plate 6, and a first drive component is installed between the base plate 6 and the two side support plates 1. The base 7 is installed at each of the four corners of the bottom surface of the base plate 6.

[0033] In this embodiment of the disclosure, the base plate 6 is used to support the installation of the liftable seat and the first drive component, and the base 7 at the four corners is used to abut against the ground.

[0034] Optionally, combined Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first driving component includes a guide rail 8, a slider 9, a movable plate 10, a third rotating shaft 11, a first synchronous belt gear 12, a first synchronous toothed belt 13, and a connecting plate 14. The guide rail 8 is installed on the top surface of the base plate 6 along its length and on both sides of the base plate 6 along its width. Both guide rails 8 support the slidable slider 9. The slider 9 is installed on both guide rails 8 and, together with the guide rails 8, provides guidance and support. The movable plate 10 is installed on both sliders 9, and the support plates 1 are installed on both movable plates 10. Under the guidance and support of the guide rails 8 and sliders 9, the movable plates 10 and support plates 1 can only move along the length of the base. The third rotating shaft 11 is rotatably inserted through the base plate 6 along the height of the base and is located at both ends of each guide rail 8. All four third rotating shafts 11 can rotate relative to the base plate 6. The first synchronous belt gears 12 are respectively mounted on four third rotating shafts 11. Along the height direction of the base, the four first synchronous belt gears 12 are all located above the base plate 6, and are used to support the installation of the first synchronous toothed belt 13. The first synchronous toothed belt 13 is fitted onto the four first synchronous belt gears 12 to transmit driving force. Connecting plates 14 are respectively mounted on the two side movable plates 10 and are connected to the first synchronous toothed belt 13. Along the width direction of the base, the first synchronous toothed belt 13 is located between the two side connecting plates 14. Any of the third rotating shafts 11 can be controlled to rotate, causing the two side movable plates 10 to reciprocate along the length direction of the base.

[0035] In this embodiment, under the drive of an external force, once any third rotating shaft 11 is controlled to reciprocate, it can drive the first synchronous belt gear 12 on it to rotate. Then, under the support of the other three rotating shafts, i.e., the other three first synchronous belt gears 12, the first synchronous toothed belt 13 can reciprocate along a rectangular trajectory. Then, under the guiding support of the two side guide rails 8 and the two side sliders 9, the two side connecting plates 14 can drive the two side moving plates 10 to reciprocate along the length direction of the base. This in turn drives the two side support plates 1 to reciprocate along the length direction of the base, and finally drives the two side pedals 5 to reciprocate along the length direction of the base.

[0036] Optionally, combined Figure 1 , Figure 5 , Figure 7 and Figure 8As shown, the first driving component also includes a first support rod 15, a first mounting plate 16, a first motor 17, a first gear 18, and a second gear 19. The first support rod 15 is mounted on the top surface of the base plate 6 along the height direction of the base, supporting the mounting plate 16. The first mounting plate 16 is mounted at the end of the first support rod 15, supporting the mounting of the first motor 17. The first motor 17 is mounted on the first mounting plate 16, providing driving force to achieve rotational motion. The first gear 18 is mounted on the rotating end of the first motor 17, rotating under the drive of the first motor 17. The second gear 19 meshes with the first gear 18, jointly transmitting driving force. The second gear 19 is mounted on any third rotating shaft 11, driving the connected third rotating shaft 11 to rotate.

[0037] In this embodiment, controlling the first motor 17 to operate drives the first gear 18 to rotate. Through the meshing of the gears, the second gear 19 is driven to rotate. This, in turn, drives the third rotating shaft 11 connected to it to rotate, ultimately realizing the function of automatically reciprocating the two side pedals 5 along the length of the base.

[0038] Optionally, combined Figure 1 and Figure 5 As shown, the second driving component includes a second support rod 20, a second mounting plate 21, a second motor 22, and a coupling 23. The second support rods 20 are mounted along the width direction of the base on opposite sides of the two support plates 1, respectively, to support the mounting of the second mounting plates 21. The second mounting plates 21 are mounted on the ends of the second support rods 20 on both sides, respectively, to support the mounting of the second motors 22. The second motors 22 are mounted on the second mounting plates 21 on both sides, respectively, to achieve rotational motion through driving force. The couplings 23 are respectively installed between the rotating ends of the second motors 22 on both sides and the first rotating shafts 2 on both sides, respectively, to transmit driving force.

[0039] In this embodiment, the second motors 22 on both sides are controlled to work, and through the couplings 23 on both sides, the first rotating shafts 2 on both sides can be driven to rotate, thus realizing the function of automatic rotation of the pedals 5 on both sides.

[0040] Optionally, combined Figure 1 , Figure 5 and Figure 7As shown, the height-adjustable seat includes a third support rod 24, a third mounting plate 25, an electrically telescopic rod 26, and a seat 27. The third support rod 24 is mounted on the top surface of the base plate 6 along the height direction of the base, supporting the mounting of the third mounting plate 25. The third mounting plate 25 is mounted at the end of the third support rod 24, supporting the mounting of the electrically telescopic rod 26. The electrically telescopic rod 26 is mounted on the third mounting plate 25 along the height direction of the base, with its moving end facing away from the base plate 6, providing driving force to achieve the lifting function. The seat 27 is mounted on the moving end of the electrically telescopic rod 26 for the patient to sit on.

[0041] In this embodiment, controlling the electric telescopic rod 26 to operate will drive the seat plate 27 to move up and down. This achieves a height-adjustable function, suitable for patients of different heights.

[0042] Optionally, combined Figure 1 , Figure 5 and Figure 7 As shown, the height-adjustable seat also includes an optical axis 28 and a linear bearing 29. The optical axis 28 is slidably mounted through the third mounting plate 25 along the height direction of the base and is connected to the seat plate 27. The linear bearing 29 is fitted onto the optical axis 28 and mounted on the third mounting plate 25.

[0043] In this embodiment, the optical axis 28 serves as a guide and support to improve the stability of the seat plate 27 during movement and reduce the radial force on the moving end of the electric telescopic rod 26. The linear bearing 29 reduces the friction between the third mounting plate 25 and the optical axis 28 and improves the accuracy of the optical axis 28 when sliding relative to the third mounting plate 25.

[0044] Optionally, combined Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the system also includes a cylindrical seat 30, a second synchronous belt gear 31, a third synchronous belt gear 32, and a second synchronous toothed belt 33. The cylindrical seats 30 are respectively mounted on the opposite sides of the two support plates 1 and are respectively fitted onto the two first rotating shafts 2. The axes of the two cylindrical seats 30 and the axes of the two first rotating shafts 2 coincide, and are used to support and mount the second synchronous belt gears 31. The second synchronous belt gears 31 are respectively fitted onto the two cylindrical seats 30, and their positions are fixed at different locations. The third synchronous belt gears 32 are respectively mounted on the two second rotating shafts 4 and rotate synchronously with the two third rotating shafts 11. The second synchronous toothed belts 33 are respectively fitted between the two second synchronous belt gears 31 and the two third synchronous belt gears 32, and are used to transmit driving force.

[0045] In this embodiment, when the first rotating shafts 2 on both sides are driven to rotate, the rotating plates 3 on both sides will rotate accordingly, thereby driving the second rotating shafts 4 on both sides to revolve around the axis of the first rotating shafts 2 on both sides, and then driving the third synchronous belt gears 32 on both sides to revolve around the axis of the first rotating shafts 2 on both sides. Since the positions of the second synchronous belt gears 31 on both sides are fixed, the second synchronous toothed belts 33 on both sides will drive the third synchronous belt gears 32 on both sides to rotate around their own axis while revolving. This will drive the second rotating shafts 4 on both sides to rotate around their own axis while working, ultimately ensuring that the pedals 5 on both sides remain horizontal while rotating, thus facilitating the patient to step on them.

[0046] Optionally, combined Figure 1 , Figure 2 and Figure 5 As shown, it also includes a first bearing housing 34 and a first bearing. The first bearing housing 34 is respectively installed on the two side support plates 1 and respectively sleeved on the two side first rotating shafts 2. The first bearing is respectively installed between the two side first bearing housings 34 and the two side first rotating shafts 2.

[0047] In this embodiment, the two first bearing seats 34 are used to support and mount the two first bearings and to limit the movement of the two first bearings. The two first bearings are used to support and mount the two first rotating shafts 2, reducing the frictional force on the two first rotating shafts 2 and improving the rotational accuracy of the two first rotating shafts 2.

[0048] Optionally, combined Figure 1 , Figure 3 and Figure 5 As shown, it also includes a second bearing housing 35 and a second bearing. The second bearing housing 35 is respectively installed on the two side rotating plates 3 and respectively sleeved on the two side second rotating shafts 4. The second bearing is respectively installed between the two side second bearing housings 35 and the two side second rotating shafts 4.

[0049] In this embodiment, the two second bearing seats 35 are used to support and mount the two second bearings and to limit their movement. The two second bearings are used to support and mount the two second rotating shafts 4, reducing the friction on the two second rotating shafts 4 and improving their rotational accuracy.

[0050] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An orthopedic rehabilitation exercise device, characterized in that, include: Base; The support plates are located above the base along the height direction and on both sides above the base along the width direction, with the planes of the support plates on both sides being parallel to each other. The first rotating shaft is rotatably inserted through the support plates on both sides, and the axes of the first rotating shafts on both sides coincide with each other; Rotating plates are respectively installed at the opposite ends of the first rotating shaft on both sides; The second rotating shaft is rotatably inserted through the rotating plates on both sides, and the axis of the second rotating shaft on both sides is parallel to the axis of the first rotating shaft on both sides. The pedals are respectively installed at the opposite ends of the second rotating shaft on both sides; A height-adjustable seat is installed on the top surface of the base for the user to sit on; The first driving component is installed between the base and the two side support plates and is configured to drive the two side support plates to reciprocate along the length direction of the base. The second driving component is installed between the support plates on both sides and the first rotating shafts on both sides, and is configured to drive the first rotating shafts on both sides to rotate relative to the support plates on both sides.

2. The orthopedic rehabilitation exercise device according to claim 1, characterized in that, The base includes: The base plate, the liftable seat is installed on the top surface of the base plate, and the first drive component is installed between the base plate and the support plates on both sides; The base is installed at the four corners of the bottom surface of the base plate.

3. The orthopedic rehabilitation exercise device according to claim 2, characterized in that, The first driving element includes: Guide rails are installed on the top surface of the base plate along its length and on both sides of the base plate along its width. Slider blocks are respectively mounted on the guide rails on both sides; Movable plates are respectively installed on the sliders on both sides, and support plates on both sides are respectively installed on the movable plates on both sides; The third rotating shaft is rotatably inserted through the base plate along the height direction of the base, and is located at both ends of the guide rail on each side. The first synchronous belt gears are respectively installed on the four third rotating shafts, and along the height direction of the base, the four first synchronous belt gears are all located above the base plate; The first synchronous toothed belt is fitted onto four first synchronous belt gears; Connecting plates are respectively installed on the two movable plates and are connected to the first synchronous toothed belt. Along the width direction of the base, the first synchronous toothed belt is located between the two connecting plates. Either of the third rotating shafts can be controlled to rotate, so that the two movable plates on both sides reciprocate along the length of the base.

4. The orthopedic rehabilitation exercise device according to claim 3, characterized in that, The first driving component further includes: The first support rod is installed on the top surface of the base plate along the height direction of the base; The first mounting plate is installed at the end of the first support rod; The first motor is mounted on the first mounting plate; The first gear is installed on the rotating end of the first motor; The second gear meshes with the first gear and is mounted on either of the third shafts.

5. The orthopedic rehabilitation exercise device according to claim 1, characterized in that, The second driving element includes: The second support rod is installed on the opposite sides of the support plates on both sides, along the width direction of the base. The second mounting plate is installed on the ends of the second support rods on both sides respectively; The second motor is mounted on the second mounting plate on both sides respectively; The couplings are respectively installed between the rotating ends of the second motors on both sides and the first rotating shafts on both sides.

6. The orthopedic rehabilitation exercise device according to claim 2, characterized in that, The height-adjustable seat includes: The third support rod is installed on the top surface of the base plate along the height direction of the base; The third mounting plate is installed at the end of the third support rod; An electric telescopic rod is installed on the third mounting plate along the height direction of the base, with the moving end of the electric telescopic rod facing away from the base plate; A seat plate is installed on the moving end of the electric telescopic rod.

7. The orthopedic rehabilitation exercise device according to claim 6, characterized in that, The height-adjustable seat also includes: The optical axis is slidably inserted through the third mounting plate along the height direction of the base and is connected to the base plate; A linear bearing is fitted onto the optical axis and mounted on the third mounting plate.

8. An orthopedic rehabilitation exercise device according to any one of claims 1 to 7, characterized in that, Also includes: Cylindrical seats are respectively installed on the opposite sides of the support plates on both sides, and respectively fitted onto the first rotating shafts on both sides, with the axis of the cylindrical seats on both sides coinciding with the axis of the first rotating shafts on both sides; The second synchronous belt gear is respectively fitted onto the cylindrical seats on both sides; The third synchronous belt gear is installed on the second rotating shaft on both sides respectively; The second synchronous toothed belt is respectively fitted between the second synchronous belt gear on both sides and the third synchronous belt gear on both sides.

9. An orthopedic rehabilitation exercise device according to any one of claims 1 to 7, characterized in that, Also includes: The first bearing housing is respectively installed on the support plates on both sides and respectively sleeved on the first rotating shaft on both sides; The first bearing is installed between the first bearing housings on both sides and the first rotating shafts on both sides.

10. An orthopedic rehabilitation exercise device according to any one of claims 1 to 7, characterized in that, Also includes: The second bearing housing is respectively installed on the rotating plates on both sides and respectively sleeved on the second rotating shaft on both sides; The second bearing is installed between the second bearing housings on both sides and the second rotating shafts on both sides.

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