Novel single motor linkage structure lower limb rehabilitation exercise power-assisted walking training device

Abstract

This utility model discloses a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer, including a mounting frame. The mounting frame has casters at its lower end, a mounting plate at its rear end, a support device at the front end of the lower mounting plate, and a dual-axis motor between the two mounting plates, with a walking device mounted at its output end. A handrail is mounted on the upper end of the mounting frame via a support frame, and a first mounting post and a second mounting post are mounted on the inner wall. The walking device includes a swing arm and a second connecting rod. The swing arm is rotatably connected to a connecting arm, which is hinged to the first connecting rod. The first connecting rod is equipped with a pulley. The first and second connecting rods are movably mounted on the mounting arm. The lower end of the second connecting rod is hinged to a third connecting rod, and a foot pedal is fixed to the lower end of the third connecting rod, on which a mounting seat with a sliding groove is fixed. This utility model uses a single-motor driven linkage structure to simulate walking movements, facilitating lower limb rehabilitation training for patients.

Description

Technical Field

[0001] This utility model relates to the field of lower limb rehabilitation exercise technology, and in particular to a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer. Background Technology

[0002] Lower limb rehabilitation exercises refer to a series of targeted movements and training methods designed for various injuries, diseases, or functional impairments of the lower limbs. These exercises aim to promote lower limb functional recovery, enhance muscle strength, improve joint mobility, and increase balance and walking ability, thereby improving the patient's quality of life. Through appropriate exercises, such as joint flexion, extension, and rotation, muscle strength and joint flexibility can be improved, thus enhancing quality of life.

[0003] However, when patients undergo lower limb rehabilitation exercises, especially some elderly patients, stroke patients, and patients with spinal cord injuries, their own muscles atrophy or abnormal nerve control make it difficult for them to independently complete joint flexion, extension, rotation and other activities. They need manual assistance from therapists, which is inefficient and risky. Utility Model Content

[0004] The main objective of this invention is to provide a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer includes a mounting frame. Two omnidirectional wheels are fixedly mounted on the lower left and lower right ends of the mounting frame. Mounting plates are fixedly mounted on the upper and lower rear ends of the mounting frame. A support device is fixedly mounted on the front end of the lower mounting plate. A dual-axis motor is fixedly mounted between the two mounting plates. Walking devices are fixedly mounted on both output ends of the dual-axis motor. Two support frames are fixedly mounted on the upper end of the mounting frame, and handrails are fixedly mounted on the upper ends of both support frames. A first mounting column and a second mounting column are fixedly mounted on the left and right inner walls of the mounting frame, with the first mounting column located in front of the second mounting column.

[0007] Preferably, the walking device includes a swing arm and a second connecting rod. A connecting arm is rotatably mounted on the right end of the swing arm. A first connecting rod is hinged to the front end of the connecting arm. A pulley is fixedly mounted on the lower right end of the first connecting rod. An mounting arm is movably mounted on the middle right ends of the first and second connecting rods. A third connecting rod is hinged to the lower end of the second connecting rod. A foot pedal is fixedly mounted on the lower end of the third connecting rod. A mounting base is fixedly mounted on the right end of the third connecting rod. The first connecting rod is rotatably mounted on the outer surface of the second mounting column, and the second connecting rod is rotatably mounted on the outer surface of the first mounting column. The dual-axis motor drives the swing arm, which in turn rotates and drives the connecting arm. The connecting arm is hinged to the first connecting rod, which in turn drives the first connecting rod. At this time, the pulley fixed on the first connecting rod slides back and forth in the groove on the mounting base. The mounting base and the right end of the first connecting rod are also movably mounted with the mounting arm. The mounting base is fixedly connected to the third connecting rod and rotatably connected to the second connecting rod. The third connecting rod and the second connecting rod are hinged. When the pulley slides back and forth in the groove on the mounting base, the mounting arm drives the second connecting rod, which in turn drives the mounting base to move the third connecting rod and the foot pedal.

[0008] Preferably, the support device includes a first fixing frame, a second fixing frame fixedly installed at the upper front end of the first fixing frame, a backrest inserted through the front end of the second fixing frame, an electric telescopic rod fixedly installed at the lower end of the first fixing frame, a connecting frame fixedly installed at the output end of the electric telescopic rod, and the first fixing frame fixedly installed at the front end of the lower mounting plate. The electric telescopic rod drives the backrest to slide and adjust on the second fixing frame, allowing the backrest to support the patient's back according to their needs, further improving the practicality of the device.

[0009] Preferably, the mounting base has a sliding groove, and the pulley is slidably installed in the sliding groove.

[0010] Preferably, the two swing arms are fixedly mounted on the two output ends of the dual-axis motor, and the two swing arms face opposite directions.

[0011] Preferably, the upper end of the connecting frame is fixedly connected to the backrest.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By starting the dual-axis motor, the swing arm on the walking device is driven. When the swing arm rotates, it drives the connecting arm, which is hinged to the first connecting rod. This drives the first connecting rod, and the pulley fixed on the first connecting rod slides back and forth in the groove on the mounting base. The mounting base and the right end of the first connecting rod are also hinged to the mounting arm. The mounting base is fixedly connected to the third connecting rod and rotatably connected to the second connecting rod. The third connecting rod is hinged to the second connecting rod. When the pulley slides back and forth in the groove on the mounting base, the mounting arm drives the second connecting rod, which in turn drives the third connecting rod and the foot pedal to move, thus simulating people's walking movements and facilitating the patient's lower limb joint flexion, extension, rotation and other activities.

[0014] 2. When the patient uses the device, the backrest is slidably adjusted on the second fixed frame by the electric telescopic rod, so that the backrest can support the patient's back according to the patient's needs, which further improves the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to this utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of the walking device of a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to this utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of the back of the walking device of a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to this utility model.

[0018] Figure 4 This is a schematic diagram of the overall structure of the support device for a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to this utility model.

[0019] Figure 5 This is a right view of a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to this utility model.

[0020] In the diagram: 1. Mounting frame; 2. Dual-axis motor; 3. Walking device; 4. Support device; 5. Casters; 6. Support frame; 7. Handrail; 8. Mounting plate; 9. Mounting column 1; 10. Mounting column 2; 30. Swing arm; 31. Connecting arm; 33. Connecting rod 1; 34. Connecting rod 2; 35. Mounting arm; 36. Connecting rod 3; 37. Foot pedal; 331. Pulley; 341. Mounting base; 40. Fixed frame 1; 41. Electric telescopic rod; 42. Fixed frame 2; 43. Backrest; 44. Connecting frame. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1-5 As shown, a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer includes a mounting frame 1. Two universal wheels 5 are fixedly installed on the lower left and lower right parts of the mounting frame 1. Mounting plates 8 are fixedly installed on the upper and lower rear ends of the mounting frame 1. A support device 4 is fixedly installed on the front end of the lower mounting plate 8. A dual-axis motor 2 is fixedly installed between the two mounting plates 8. A walking device 3 is fixedly installed on both output ends of the dual-axis motor 2. Two support frames 6 are fixedly installed on the upper end of the mounting frame 1. Handrails 7 are fixedly installed on the upper ends of the two support frames 6. A first mounting column 9 and a second mounting column 10 are fixedly installed on the left inner wall and right inner wall of the mounting frame 1, respectively. The first mounting column 9 is located in front of the second mounting column 10.

[0025] The walking device 3 includes a swing arm 30 and a second connecting rod 34. A connecting arm 31 is rotatably mounted on the right end of the swing arm 30. A first connecting rod 33 is hinged to the front end of the connecting arm 31. A pulley 331 is fixedly mounted on the lower right end of the first connecting rod 33. A mounting arm 35 is movably mounted on the middle right end of the first connecting rod 33 and the second connecting rod 34. A third connecting rod 36 is hinged to the lower end of the second connecting rod 34. A foot pedal 37 is fixedly mounted on the lower end of the third connecting rod 36. A mounting base 341 is fixedly mounted on the right end of the third connecting rod 36. The first connecting rod 33 is rotatably mounted on the outer surface of the second mounting column 10, and the second connecting rod 34 is rotatably mounted on the outer surface of the first mounting column 9. A sliding groove is opened on the mounting base 341, and the pulley 331 is slidably mounted in the sliding groove. The two swing arms 30 are respectively fixedly mounted on the two output ends of the dual-axis motor 2, and the two swing arms 30 face opposite directions. By starting the dual-axis motor 2, the swing arm 30 is driven. When the swing arm 30 rotates, it will drive the connecting arm 31. The connecting arm 31 is hinged to the first connecting rod 33, which will drive the first connecting rod 33. At this time, the pulley 331 fixed on the first connecting rod 33 will slide back and forth in the groove on the mounting base 341. The mounting base 341 and the right end of the first connecting rod 33 are also movably mounted with the mounting arm 35. The mounting base 341 is fixedly connected to the third connecting rod 36 and rotatably connected to the second connecting rod 34. The third connecting rod 36 and the second connecting rod 34 are hinged. When the pulley 331 slides back and forth in the groove on the mounting base 341, the mounting arm 35 will drive the second connecting rod 34, which will cause the mounting base 341 to drive the third connecting rod 36 and the foot pedal 37 to move.

[0026] The support device 4 includes a first fixing frame 40, a second fixing frame 42 fixedly mounted on the upper front end of the first fixing frame 40, a backrest 43 inserted through the front end of the second fixing frame 42, an electric telescopic rod 41 fixedly mounted on the lower end of the first fixing frame 40, a connecting frame 44 fixedly mounted on the output end of the electric telescopic rod 41, and the first fixing frame 40 fixedly mounted on the front end of the lower mounting plate 8; the upper end of the connecting frame 44 is fixedly connected to the backrest 43. The electrical equipment of this utility model is all existing technology, and all electrical equipment can operate normally during trial operation. In use, the dual-axis motor 2 and the electric telescopic rod 41 need to be connected to an external power source. The electric telescopic rod 41 drives the backrest 43 to slide and adjust on the second fixing frame 42, allowing the backrest 43 to support the patient's back according to their needs, further improving the practicality of the device.

[0027] It should be noted that this utility model is a novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer. Before the patient uses it, the electric telescopic rod 41 first drives the backrest 43 to slide and adjust on the second fixed frame 42, so that the backrest 43 can support the patient's back according to their needs, further improving the practicality of the device. Then, the dual-axis motor 2 is started to drive the swing arm 30 on the walking device 3. When the swing arm 30 rotates, it will drive the connecting arm 31. The connecting arm 31 is hinged to the first connecting rod 33, which will drive the first connecting rod 33. At this time, the pulley 3 fixed on the first connecting rod 33... The pulley 31 will slide back and forth in the groove on the mounting base 341. The mounting base 341 and the right end of the first connecting rod 33 are also movably mounted with the mounting arm 35. The mounting base 341 is fixedly connected to the third connecting rod 36 and rotatably connected to the second connecting rod 34. The third connecting rod 36 and the second connecting rod 34 are hinged. When the pulley 331 slides back and forth in the groove on the mounting base 341, the mounting arm 35 will drive the second connecting rod 34, thereby causing the mounting base 341 to drive the third connecting rod 36 and the foot pedal 37 to move, thus simulating people's walking movements, making it convenient for patients to perform joint flexion, extension and rotation of the lower limbs.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer, comprising a mounting frame (1), characterized in that: Two universal wheels (5) are fixedly installed on the lower left and lower right sides of the mounting frame (1). Mounting plates (8) are fixedly installed on the upper and lower rear ends of the mounting frame (1). A support device (4) is fixedly installed on the front end of the lower mounting plate (8). A dual-axis motor (2) is fixedly installed between the two mounting plates (8). A walking device (3) is fixedly installed on both output ends of the dual-axis motor (2). Two support frames (6) are fixedly installed on the upper end of the mounting frame (1). Handrails (7) are fixedly installed on the upper ends of the two support frames (6). A first mounting column (9) and a second mounting column (10) are fixedly installed on the left inner wall and right inner wall of the mounting frame (1). The first mounting column (9) is located in front of the second mounting column (10).

2. The novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to claim 1, characterized in that: The walking device (3) includes a swing arm (30) and a second connecting rod (34). A connecting arm (31) is rotatably mounted on the right end of the swing arm (30). A first connecting rod (33) is hinged to the front end of the connecting arm (31). A pulley (331) is fixedly mounted on the lower part of the right end of the first connecting rod (33). An mounting arm (35) is movably mounted on the middle part of the right ends of the first connecting rod (33) and the second connecting rod (34). A third connecting rod (36) is hinged to the lower end of the second connecting rod (34). A foot pedal (37) is fixedly mounted on the lower end of the third connecting rod (36). A mounting seat (341) is fixedly mounted on the right end of the third connecting rod (36). The first connecting rod (33) is rotatably mounted on the outer surface of the second mounting column (10). The second connecting rod (34) is rotatably mounted on the outer surface of the first mounting column (9).

3. The novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to claim 1, characterized in that: The support device (4) includes a first fixing frame (40), a second fixing frame (42) is fixedly installed on the upper front end of the first fixing frame (40), a backrest (43) is inserted at the front end of the second fixing frame (42), an electric telescopic rod (41) is fixedly installed at the lower end of the first fixing frame (40), a connecting frame (44) is fixedly installed at the output end of the electric telescopic rod (41), and the first fixing frame (40) is fixedly installed at the front end of the lower mounting plate (8).

4. The novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to claim 2, characterized in that: The mounting base (341) has a sliding groove, and the pulley (331) is slidably installed in the sliding groove.

5. The novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to claim 2, characterized in that: The two swing arms (30) are respectively fixedly mounted on the two output ends of the dual-axis motor (2), and the two swing arms (30) face opposite directions.

6. The novel single-motor linkage structure lower limb rehabilitation exercise assistive walking trainer according to claim 3, characterized in that: The upper end of the connecting frame (44) is fixedly connected to the backrest (43).

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