Leg exercise device for geriatric nursing

Abstract

The invention relates to the technical field of geriatric nursing equipment, and discloses a leg exercise device for geriatric nursing, which comprises a pedal type driving mechanism and an elastic damping mechanism, the hollow shell is located on one side of the hollow rotating disc and is of a hollow structure, the arc-shaped friction plate can abut against the circumferential face of the hollow rotating disc and generate friction resistance, and the spiral spring is placed in the hollow shell and generates elastic acting force on the arc-shaped friction plate. The leg exercising device for nursing in the elderly department is used in cooperation with a seat, on the premise that an old person is in a sitting posture, the old person can exercise legs according to the bicycle principle, the leg exercising device has the advantages that the using process is simple, and the posture requirement is simplified, so that the difficulty of leg exercising of the old person is reduced, and in addition, the device is convenient to use. According to the device, the resistance during exercise can be adjusted according to actual needs, so that the applicability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of geriatric nursing equipment technology, specifically a leg exercise device for geriatric nursing. Background Technology

[0002] As people age, the coordination of their leg muscles declines, often leading to unsteady gait and difficulty walking. Over time, this can even prevent them from standing normally. Therefore, it is essential to exercise and care for the legs of the elderly.

[0003] To this end, Chinese Patent Publication No. CN118059442A discloses a "Leg Exercise Device for Geriatric Care," whose main structure includes an exercise base and a fixed base. The exercise base and the fixed base are connected by an adjustment component. The exercise base has a through groove, and a foot pedal is slidably connected to the through groove. A spring connects the foot pedal to the exercise base. A linkage shaft is rotatably connected to the inner side of the exercise base, and a uniform speed control component is connected to the linkage shaft. A frequency control component is connected to the foot pedal, and the foot pedal and the linkage shaft are connected by a transmission component. This leg exercise device for geriatric care adjusts the exercise intensity by adjusting the number of springs, adjusts the overall length between the exercise base and the fixed base by the adjustment component, controls the uniformity of the exercise process by the uniform speed control component, and controls the integrity of the exercise process by the frequency control component. This allows the exercise device to adapt to different exercise needs and ensures the uniformity and integrity of the exercise process, thus ensuring the effectiveness and safety of the exercise.

[0004] It is clear that the aforementioned leg exercise device for geriatric care requires the elderly to keep their legs and abdomen at a maximum angle of 90 degrees when in use. When the leg retraction action is required, this angle will be further reduced. The lumbar curvature of the elderly is already relatively fragile, so the above-mentioned working method is quite difficult for the elderly. At the same time, for some obese elderly people, the reduction of the angle will further increase the difficulty of exercise. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a leg exercise device for geriatric care. Used in conjunction with a chair, it allows elderly individuals to exercise their legs while seated, utilizing the principles of cycling. The device is characterized by its simplicity of use and simplified physical requirements, reducing the difficulty for elderly individuals exercising their legs. Furthermore, the device allows for adjustment of resistance during exercise according to actual needs, improving its applicability and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a leg exercise device for geriatric nursing, comprising a foot pedal drive mechanism, the structure of which includes a rotatable horizontal shaft, a hollow turntable installed in the middle of the horizontal shaft and rotating with the horizontal shaft, two hollow bushings installed on the shaft body of the horizontal shaft via bearings, and foot pedals installed at both ends of the horizontal shaft and capable of driving the horizontal shaft to rotate; and an elastic damping mechanism, the structure of which includes a hollow shell located on one side of the hollow turntable and having a hollow internal structure, an arc-shaped friction plate that can abut against the circumferential surface of the hollow turntable and generate frictional resistance, and a helical spring placed inside the hollow shell and generating an elastic force on the arc-shaped friction plate.

[0007] Preferably, the foot-operated drive mechanism further includes two bottom support base plates for support. The top of the bottom support base plate is provided with a first shaft hole. Part of the horizontal rotating shaft is installed inside the first shaft hole through a bearing. The center of the hollow turntable is provided with a second shaft hole that is installed at the horizontal rotating shaft through a bearing. The center of the hollow bushing is provided with a third shaft hole that is installed at the horizontal rotating shaft through a bearing. The outer circumference of the hollow bushing is provided with a central mounting plate integrally formed with it. Two foot pedals are fixedly installed at both ends of the horizontal rotating shaft.

[0008] Preferably, the two foot pedals are arranged in a staggered symmetrical layout with respect to the plane of symmetry of the hollow turntable.

[0009] Preferably, the elastic damping mechanism further includes a component movable cavity disposed inside the hollow shell. One end of the hollow shell is provided with a side mounting plate integrally formed therewith, and the other end of the hollow shell is provided with a rod through hole communicating with the external environment and one end of the component movable cavity. Inside the component movable cavity, the hollow shell houses an internal movable plate capable of moving axially along the component movable cavity. A telescopic rod passing through the rod through hole is fixedly installed on the end of the internal movable plate facing the rod through hole, and a helical spring in a compressed state is disposed on the other end of the internal movable plate. An arc-shaped friction plate abutting against the circumferential surface of the hollow turntable is fixedly installed on one end of the telescopic rod.

[0010] Preferably, when the concave surface of the arc-shaped friction plate abuts against the circumferential surface of the hollow turntable, there is a movement gap between the two ends of the built-in movable plate and the movable cavity of the component.

[0011] Preferably, the structural shape of the cross-section of the rod through the hole is consistent with the structural shape of the cross-section of the telescopic rod, both being polygonal structures, and the structural dimensions of the cross-section of the rod through the hole match the structural dimensions of the cross-section of the telescopic rod.

[0012] Preferably, it also includes a damping strength adjustment mechanism, the structure of which includes a first external thread rod and a second external thread rod fixedly connected to the central mounting plate and the side mounting plate, a threaded sleeve capable of changing the distance between the first external thread rod and the second external thread rod, and a polygonal limiting rod capable of preventing relative rotation between the first external thread rod and the second external thread rod.

[0013] Preferably, the damping strength adjustment mechanism further includes a polygonal limiting cavity. One end of the threaded sleeve is provided with a first internal thread cavity of concave structure, and the other end of the threaded sleeve is provided with a second internal thread cavity of concave structure. The rod body of the first external thread rod is installed inside the first internal thread cavity through the first thread structure, and the rod body of the second external thread rod is installed inside the second internal thread cavity through the second thread structure. The first and second external thread rods are provided with polygonal limiting cavities of concave structure at their opposite ends. A polygonal limiting rod inserted into the polygonal limiting cavity is fixedly installed at the center of the threaded sleeve. One end of the first external thread rod is provided with a first connecting plate that is integral with it and fixedly connected to the middle mounting plate. One end of the second external thread rod is provided with a second connecting plate that is integral with it and fixedly connected to the side mounting plate.

[0014] Preferably, the cross-sectional shape of the polygonal limiting cavity is consistent with the cross-sectional shape of the polygonal limiting rod, both being polygonal structures, and the structural dimensions of the cross-sectional shape of the polygonal limiting cavity match the structural dimensions of the cross-sectional shape of the polygonal limiting rod.

[0015] Preferably, the first thread structure includes an internal thread structure disposed inside the first internal thread cavity and an external thread structure disposed on the first external thread rod body, and the second thread structure includes an internal thread structure disposed inside the second internal thread cavity and an external thread structure disposed on the second external thread rod body, and the helical direction of the first thread structure is opposite to the helical direction of the second thread structure 35.

[0016] Compared with the prior art, the present invention provides a leg exercise device for geriatric care, which has the following beneficial effects: When used with a chair, this device allows seniors to exercise their legs while seated, utilizing the principles of cycling. It is characterized by its simplicity of use and simplified physical requirements, reducing the difficulty for seniors exercising their legs. In addition, the resistance can be adjusted according to actual needs, improving the applicability of the equipment. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the foot-operated drive mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the foot-operated drive mechanism in this invention; Figure 5 This is a perspective view of the elastic damping mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the elastic damping mechanism in this invention; Figure 7 This is a perspective view of the damping strength adjustment mechanism in this invention; Figure 8 This is a three-dimensional cross-sectional view of the damping strength adjustment mechanism in this invention.

[0018] The components include: 1. Foot-operated drive mechanism; 11. Horizontal rotating shaft; 12. Bottom support base plate; 13. Shaft hole No. 1; 14. Hollow turntable; 15. Shaft hole No. 2; 16. Hollow bushing; 17. Shaft hole No. 3; 18. Central mounting plate; 19. Foot pedal; 2. Elastic damping mechanism; 21. Hollow shell; 22. Side mounting plate; 23. Component movable cavity; 24. Rod through hole; 25. Internal movable plate; 26. Helical spring; 27. Telescopic rod; 28. Arc-shaped friction plate; 3. Damping strength adjustment mechanism; 31. Threaded sleeve; 32. Internal thread cavity No. 1; 33. Internal thread cavity No. 2; 34. Thread structure No. 1; 35. Thread structure No. 2; 36. External thread rod No. 1; 37. External thread rod No. 2; 38. Connecting plate No. 1; 39. Connecting plate No. 2; 310. Polygonal limiting cavity; 311. Polygonal limiting rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 and Figure 2 A leg exercise device for geriatric care. Before use, the bottom support base plate 12 needs to be fixedly installed on the ground. Then, take a seat of appropriate height and place it near the device. When adjusting the position of the seat, you can adopt a more comfortable posture.

[0021] For a leg workout, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4A foot-operated drive mechanism 1 is required, which includes a rotatable horizontal shaft 11, a hollow turntable 14 installed in the middle of the horizontal shaft 11 and rotating with the horizontal shaft 11, two hollow bushings 16 installed on the shaft of the horizontal shaft 11 via bearings, and foot pedals 19 installed at both ends of the horizontal shaft 11 and capable of driving the horizontal shaft 11 to rotate. Both feet step on the upper surfaces of the two foot pedals 19 respectively, and then, in the manner of riding a bicycle, the two foot pedals 19 are continuously pedaled in a cycle. At this time, the foot pedals 19 will drive the horizontal shaft 11 to rotate, and the horizontal shaft 11 will drive the hollow turntable 14 to rotate, thereby exercising the legs of the person.

[0022] For details regarding the specific structure of the foot-operated drive mechanism 1, please refer to [link / reference]. Figure 3 and Figure 4 It also includes two bottom support base plates 12 for support. The top of the bottom support base plate 12 is provided with a first shaft hole 13. Part of the shaft of the horizontal rotating shaft 11 is installed inside the first shaft hole 13 by bearings. The center of the hollow turntable 14 is provided with a second shaft hole 15 installed at the shaft of the horizontal rotating shaft 11 by bearings. The center of the hollow bushing 16 is provided with a third shaft hole 17 installed at the shaft of the horizontal rotating shaft 11 by bearings. The outer circumference of the hollow bushing 16 is provided with a central mounting plate 18 integral with it. Two foot pedals 19 are fixedly installed at both ends of the horizontal rotating shaft 11. The two foot pedals 19 are arranged in a staggered symmetrical layout about the symmetrical plane of the hollow turntable 14.

[0023] To provide the necessary exercise intensity, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 An elastic damping mechanism 2 needs to be set up. Its structure includes a hollow shell 21 located on one side of the hollow turntable 14 and having a hollow internal structure, an arc-shaped friction plate 28 that can abut against the circumferential surface of the hollow turntable 14 and generate frictional resistance, and a helical spring 26 placed inside the hollow shell 21 and generating an elastic force on the arc-shaped friction plate 28. When the hollow turntable 14 rotates, it needs to overcome the maximum static friction force between the hollow turntable 14 and the arc-shaped friction plate 28. The maximum static friction force is formed by the elastic force of the helical spring 26. Therefore, the elastic force of the helical spring 26 causes frictional damping between the arc-shaped friction plate 28 and the hollow turntable 14. This frictional damping is the exercise intensity.

[0024] For details regarding the specific structure of the elastic damping mechanism 2, please refer to [link / reference]. Figure 5 and Figure 6It also includes a component movable cavity 23 disposed inside the hollow shell 21. One end of the hollow shell 21 is provided with a side mounting plate 22 integrally formed therewith, and the other end of the hollow shell 21 is provided with a rod through hole 24 communicating with the external environment and one end of the component movable cavity 23. Inside the component movable cavity 23, the hollow shell 21 houses an internal movable plate 25 capable of moving axially along the component movable cavity 23. A telescopic rod 27 passing through the rod through hole 24 is fixedly installed on the end of the internal movable plate 25 facing the rod through hole 24. A coil spring 26 in a compressed state is placed at the other end. An arc-shaped friction plate 28 is fixedly installed at one end of the telescopic rod 27, which abuts against the circumferential surface of the hollow turntable 14. When the concave surface of the arc-shaped friction plate 28 abuts against the circumferential surface of the hollow turntable 14, there is a movement gap between the two ends of the built-in movable plate 25 and the movable cavity 23 of the component. The structural shape of the cross-section of the rod through hole 24 is consistent with the structural shape of the cross-section of the telescopic rod 27, both of which are polygonal structures, and the structural dimensions of the cross-section of the rod through hole 24 match the structural dimensions of the cross-section of the telescopic rod 27.

[0025] To enable the adjustment of exercise intensity, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 7 and Figure 8 A damping intensity adjustment mechanism 3 needs to be set up. Its structure includes a first external threaded rod 36 and a second external threaded rod 37 fixedly connected to the middle mounting plate 18 and the side mounting plate 22, a threaded sleeve 31 that can change the distance between the first external threaded rod 36 and the second external threaded rod 37, and a polygonal limiting rod 311 that can prevent the first external threaded rod 36 and the second external threaded rod 37 from rotating relative to each other. The threaded sleeve 31 rotates in a directional manner. Due to the threaded connection and the opposite threaded structure, and under the action of the polygonal limiting rod 311, the distance between the first external threaded rod 36 and the second external threaded rod 37 will change, thereby changing the distance between the middle mounting plate 18 and the side mounting plate 22. Because the distance between the two changes, the compression stroke of the helical spring 26 will change. This change will cause the elastic force of the helical spring 26 to change, thereby changing the maximum static friction force mentioned above, so as to realize the function of adjusting the exercise intensity.

[0026] For details regarding the specific structure of the damping strength adjustment mechanism 3, please refer to [link / reference]. Figure 7 and Figure 8It also includes a polygonal limiting cavity 310. One end of the threaded sleeve 31 is provided with a first internal threaded cavity 32 with an inwardly concave structure, and the other end of the threaded sleeve 31 is provided with a second internal threaded cavity 33 with an inwardly concave structure. The rod body of the first external threaded rod 36 is installed inside the first internal threaded cavity 32 through a first threaded structure 34, and the rod body of the second external threaded rod 37 is installed inside the second internal threaded cavity 33 through a second threaded structure 35. The first external threaded rod 36 and the second external threaded rod 37 are provided with polygonal limiting cavities 310 with inwardly concave structures at their opposite ends. A polygonal limiting rod 311 is fixedly installed in the center of the threaded sleeve 31 and inserted into the polygonal limiting cavity 310. One end of the first external threaded rod 36 is provided with a first connecting plate 38, which is integral with it and fixedly connected to the middle mounting plate 18. One end of the second external thread rod 37 is provided with a second connecting plate 39, which is integral with it and fixedly connected to the side mounting plate 22. The cross-sectional shape of the polygonal limiting cavity 310 is consistent with the cross-sectional shape of the polygonal limiting rod 311, both being polygonal structures. The cross-sectional dimensions of the polygonal limiting cavity 310 match the cross-sectional dimensions of the polygonal limiting rod 311. The first thread structure 34 includes an internal thread structure disposed inside the first internal thread cavity 32 and an external thread structure disposed on the rod body of the first external thread rod 36. The second thread structure 35 includes an internal thread structure disposed inside the second internal thread cavity 33 and an external thread structure disposed on the rod body of the second external thread rod 37. The helical direction of the first thread structure 34 is opposite to the helical direction of the second thread structure 35.

[0027] When using the device, the bottom support base plate 12 needs to be fixedly installed on the ground. Then, take a seat of suitable height and place it near the device. When adjusting the seat position, adopt a comfortable posture. Place both feet on the upper surfaces of the two foot pedals 19 respectively. Then, pedal the two foot pedals 19 in a cycling manner. At this time, the foot pedals 19 will drive the horizontal shaft 11 to rotate, which in turn drives the hollow turntable 14 to rotate. When the hollow turntable 14 rotates, it needs to overcome the maximum static friction between the hollow turntable 14 and the arc-shaped friction plate 28. The maximum static friction is formed by the elastic force of the coil spring 26. Therefore, the elastic force of the coil spring 26 causes friction damping between the arc-shaped friction plate 28 and the hollow turntable 14, thereby exercising the user's legs.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A leg exercise device for geriatric nursing, characterized in that: include, The foot-operated drive mechanism (1) includes a rotatable horizontal shaft (11), a hollow turntable (14) installed in the middle of the horizontal shaft (11) and rotating with the horizontal shaft (11), two hollow bushings (16) installed on the shaft of the horizontal shaft (11) by bearings, and foot pedals (19) installed at both ends of the horizontal shaft (11) and capable of driving the horizontal shaft (11) to rotate. And the elastic damping mechanism (2), the structure of which includes a hollow shell (21) located on one side of the hollow turntable (14) and having a hollow structure inside, an arc-shaped friction plate (28) that can abut against the circumferential surface of the hollow turntable (14) and generate frictional resistance, and a helical spring (26) placed inside the hollow shell (21) and generating an elastic force on the arc-shaped friction plate (28).

2. The leg exercise device for geriatric nursing according to claim 1, characterized in that: The foot-operated drive mechanism (1) also includes two bottom support base plates (12) for support. The top of the bottom support base plate (12) is provided with a first shaft hole (13). Part of the shaft of the horizontal rotating shaft (11) is installed inside the first shaft hole (13) by bearing. The center of the hollow turntable (14) is provided with a second shaft hole (15) installed at the shaft of the horizontal rotating shaft (11) by bearing. The center of the hollow bushing (16) is provided with a third shaft hole (17) installed at the shaft of the horizontal rotating shaft (11) by bearing. The outer circumference of the hollow bushing (16) is provided with a central mounting plate (18) integral with it. Two foot pedals (19) are fixedly installed at both ends of the horizontal rotating shaft (11).

3. The leg exercise device for geriatric nursing according to claim 2, characterized in that: The two foot pedals (19) are arranged in a staggered symmetrical layout with respect to the symmetrical plane of the hollow turntable (14).

4. The leg exercise device for geriatric nursing according to claim 3, characterized in that: The elastic damping mechanism (2) also includes a component movable cavity (23) disposed inside the hollow shell (21). One end of the hollow shell (21) is provided with a side mounting plate (22) integrally formed with it. The other end of the hollow shell (21) is provided with a rod through hole (24) connecting the external environment and one end of the component movable cavity (23). The hollow shell (21) has an internal movable plate (25) that can move along the axial direction of the component movable cavity (23) inside the component movable cavity (23). The internal movable plate (25) has a telescopic rod (27) that passes through the rod through hole (24) fixedly installed at one end facing the rod through hole (24). The other end of the internal movable plate (25) is provided with a coil spring (26) in a compressed state. One end of the telescopic rod (27) is fixedly installed with an arc-shaped friction plate (28) that abuts against the circumferential surface of the hollow turntable (14).

5. A leg exercise device for geriatric nursing according to claim 4, characterized in that: When the concave surface of the arc-shaped friction plate (28) and the circumferential surface of the hollow turntable (14) come into contact, there is a movement gap between the inner movable plate (25) and the two ends of the component movable cavity (23).

6. The leg exercise device for geriatric nursing according to claim 5, characterized in that: The cross-sectional shape of the rod through hole (24) is consistent with the cross-sectional shape of the telescopic rod (27), both being polygonal structures, and the structural dimensions of the cross-sectional shape of the rod through hole (24) match the structural dimensions of the cross-sectional shape of the telescopic rod (27).

7. A leg exercise device for geriatric nursing according to claim 6, characterized in that: It also includes a damping strength adjustment mechanism (3), the structure of which includes a first external thread rod (36) and a second external thread rod (37) fixedly connected to the middle mounting plate (18) and the side mounting plate (22), a threaded sleeve (31) that can change the distance between the first external thread rod (36) and the second external thread rod (37), and a polygonal limit rod (311) that can prevent the first external thread rod (36) and the second external thread rod (37) from rotating relative to each other.

8. A leg exercise device for geriatric nursing according to claim 7, characterized in that: The damping strength adjustment mechanism (3) further includes a polygonal limiting cavity (310). One end of the threaded sleeve (31) is provided with a first internal thread cavity (32) with an inward concave structure, and the other end of the threaded sleeve (31) is provided with a second internal thread cavity (33) with an inward concave structure. The rod body of the first external thread rod (36) is installed inside the first internal thread cavity (32) through the first thread structure (34), and the rod body of the second external thread rod (37) is installed inside the second internal thread cavity (33) through the second thread structure (35). The rod (36) and the second external thread rod (37) are provided with a concave polygonal limiting cavity (310) at their opposite ends. A polygonal limiting rod (311) inserted into the polygonal limiting cavity (310) is fixedly installed at the center of the threaded sleeve (31). One end of the first external thread rod (36) is provided with a first connecting plate (38) that is integral with it and fixedly connected to the middle mounting plate (18). One end of the second external thread rod (37) is provided with a second connecting plate (39) that is integral with it and fixedly connected to the side mounting plate (22).

9. A leg exercise device for geriatric nursing according to claim 8, characterized in that: The cross-sectional shape of the polygonal limiting cavity (310) is consistent with the cross-sectional shape of the polygonal limiting rod (311), both being polygonal structures, and the structural dimensions of the cross-section of the polygonal limiting cavity (310) match the structural dimensions of the cross-section of the polygonal limiting rod (311).

10. A leg exercise device for geriatric nursing according to claim 9, characterized in that: The first thread structure (34) includes an internal thread structure disposed inside the first internal thread cavity (32) and an external thread structure disposed on the first external thread rod (36). The second thread structure (35) includes an internal thread structure disposed inside the second internal thread cavity (33) and an external thread structure disposed on the second external thread rod (37). The helical direction of the first thread structure (34) is opposite to the helical direction of the second thread structure (35).

Images