Limb joint exercise equipment

Abstract

The invention discloses limb joint exercise equipment, and relates to the technical field of exercise equipment, the limb joint exercise equipment comprises a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are movably connected, and a passive exercise assembly is jointly arranged between the first fixing plate and the second fixing plate; the passive exercise assembly comprises a servo motor installed on the inner side of the first fixing plate, a rotating plate rotationally connected with the inner side of the first fixing plate and a fixing rod arranged on the inner side of the rotating plate in a sliding mode, and the fixing rod is movably connected with the second fixing plate. A user can achieve active exercise and passive exercise, the exercise state can be adjusted according to the use condition, passive training helps a patient to build confidence, active training stimulates the sense of participation, resistance can be dynamically adjusted through retraction and release of a resistance belt, insufficient training or excessive load is avoided, and the recovery progress of the patient is accurately matched.

Description

Technical Field

[0001] This invention relates to the field of exercise equipment technology, and more particularly to a limb joint exercise device. Background Technology

[0002] Limb joint exercise equipment is a specialized device used to help people restore and strengthen joint function. These devices help improve joint mobility, strengthen surrounding muscles, and promote joint function recovery by providing relevant training; for example, elbow traction can improve the range of motion of the elbow joint.

[0003] Joint exercise devices primarily support active training, which is not suitable for providing passive movement support for patients in the early postoperative period or with insufficient muscle strength. This may delay the rehabilitation process and make it difficult to adjust the training mode according to the patient's rehabilitation stage, such as gradually transitioning from passive to active training or dynamically adjusting according to changes in the patient's muscle strength. This leads to a disconnect between training and rehabilitation needs. Therefore, a limb joint exercise device is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies that make it difficult to adjust training modes according to the patient's rehabilitation stage, such as gradually transitioning from passive to active training or dynamically adjusting according to changes in the patient's muscle strength, which leads to a disconnect between training and rehabilitation needs. Therefore, this invention proposes a limb joint exercise device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A limb joint exercise device includes a first fixed plate and a second fixed plate, which are movably connected. A passive exercise component is provided between the first and second fixed plates. The passive exercise component includes a servo motor mounted on the inner side of the first fixed plate, a rotating plate rotatably connected to the inner side of the first fixed plate, and a fixed rod slidably disposed on the inner side of the rotating plate. The fixed rod is movably connected to the second fixed plate. The user places their upper arm and forearm on the inner sides of the first and second fixed plates, respectively. After the servo motor is started, it drives the second fixed plate to rotate through the rotating plate. The second fixed plate then drives the forearm to rotate to perform passive elbow joint exercise.

[0007] An active exercise component is provided between the first and second fixed plates. The active exercise component includes a round rod rotatably connected to the inner side of the first fixed plate, a resistance band installed on the outer side of the round rod, a second telescopic block movably connected to the outer side of the round rod, a first ring slidably disposed on the side of the first fixed plate, and multiple square blocks installed on the inner side of the first ring. The resistance band is fixedly connected to the second fixed plate. Separating the fixed rod from the second fixed plate releases the fixation between the second fixed plate and the rotating plate. The user rotates their forearm to perform active exercise through the resistance of the resistance band. The user can perform both active and passive exercises and can adjust the exercise state according to the usage. Rotating the round rod and pressing the square blocks with the second telescopic block locks the round rod after rotation. When the round rod rotates, it drives the resistance band to expand and contract, adjusting the resistance of the resistance band. The resistance can be dynamically adjusted by expanding and contracting the resistance band to avoid undertraining or overtraining and to accurately match the patient's recovery progress.

[0008] The above technical solution further includes:

[0009] A first arc-shaped rod is installed on the outer side of the first fixed plate, and a second arc-shaped rod is slidably arranged on the inner side of the first arc-shaped rod. The second arc-shaped rod is fixedly connected to the second fixed plate, and the second fixed plate rotates along the first arc-shaped rod via the second arc-shaped rod.

[0010] The bottom of the first fixed plate has a square groove, the servo motor is installed inside the square groove, the output end of the servo motor is equipped with a worm gear, the side of the rotating plate is equipped with a rotating rod, the end of the rotating rod is equipped with a worm wheel, the worm wheel and the worm gear are meshed, and when the worm gear rotates, it drives the rotating rod to rotate through the worm wheel.

[0011] The rotating plate has a sliding groove on its inner side, and the fixed rod is slidably disposed on the inner side of the sliding groove. A first spring is installed on the side of the fixed rod, and the end of the first spring away from the fixed rod is fixedly connected to the inner wall of the sliding groove. The fixed rod can move along the sliding groove, at which time the first spring retracts.

[0012] A fixing strip is installed on the side of the rotating plate, and a movable block is installed on the side of the fixing rod. A second spring is installed on the inner side of the movable block, and a first telescopic block is installed on the end of the second spring near the rotating plate. The first telescopic block and the movable block are slidably connected. The fixing rod is fixed by locking the movable block.

[0013] The first telescopic block has a trapezoidal cross-section, and the fixing strip is located on the movement trajectory of the first telescopic block. When the first telescopic block moves, it can squeeze the fixing strip.

[0014] The first fixing plate has a circular groove on its side, and the circular rod is rotatably connected to the inside of the circular groove. A rotating handle is installed at the end of the circular rod. A guide rail is installed on the inside of the first fixing plate. The resistance band is movably connected to the guide rail. The opening size of the guide rail is adapted to the size of the resistance band.

[0015] A first telescopic rod and a third spring are respectively installed on the outer side of the round rod. The third spring and the end of the third spring away from the round rod are fixedly connected to the second telescopic block. The third spring is sleeved on the outer side of the first telescopic rod.

[0016] A second ring is installed on the side of the first fixing plate. A second telescopic rod and a fourth spring are respectively installed on the inner side of the circular groove. The ends of the second telescopic rod and the fourth spring are fixedly connected to the first ring. A pressing rod is installed on the outer side of the first ring. The fourth spring is sleeved on the outer side of the second telescopic rod, which can realize locking after the rod rotates.

[0017] Both the first and second fixing plates have symmetrical fixing straps installed on their outer sides to facilitate securing the user's arm.

[0018] The present invention has the following beneficial effects:

[0019] 1. In this invention, by setting up passive exercise components and active exercise components, users can achieve both active and passive exercise. The exercise state can be adjusted according to the usage situation. Passive training helps patients build confidence, while active training stimulates a sense of participation and reduces anxiety and resistance during the rehabilitation process, thereby improving exercise efficiency.

[0020] 2. In this invention, the active exercise component can dynamically adjust the resistance by extending and retracting the resistance band 31, avoiding insufficient training or excessive load, accurately matching the patient's recovery progress, and improving the training effect of muscle strength and joint stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a limb joint exercise device proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the first part of the structure of the first fixing plate and the second fixing plate in this invention;

[0023] Figure 3 This is a schematic diagram of the second part of the first fixing plate and the second fixing plate in this invention;

[0024] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0025] Figure 5 for Figure 2Enlarged schematic diagram of the structure at point B;

[0026] Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point C;

[0027] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point D.

[0028] In the diagram: 1. First fixed plate; 2. Second fixed plate; 3. Square groove; 4. Servo motor; 5. Worm gear; 6. Rotating rod; 7. Worm wheel; 8. Rotating plate; 9. Sliding groove; 10. Fixed rod; 11. First spring; 12. Fixed bar; 13. Movable block; 14. Second spring; 15. First telescopic block; 16. First arc-shaped rod; 17. Second arc-shaped rod; 18. Circular groove; 19. Round rod; 20. First telescopic rod; 21. Third spring; 22. Second telescopic block; 23. Second telescopic rod; 24. Fourth spring; 25. First ring; 26. Second ring; 27. Pressing rod; 28. Square block; 29. ​​Rotating handle; 30. Guide rail; 31. Resistance band; 32. Fixed band. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] like Figure 1 - Figure 7 As shown, the present invention proposes a limb joint exercise device, including a first fixing plate 1 and a second fixing plate 2, which are movably connected. A passive exercise component is provided between the first fixing plate 1 and the second fixing plate 2. The passive exercise component includes a servo motor 4 installed on the inner side of the first fixing plate 1, a rotating plate 8 rotatably connected to the inner side of the first fixing plate 1, and a fixed rod 10 slidably disposed on the inner side of the rotating plate 8. The fixed rod 10 is movably connected to the second fixing plate 2. The user places the upper arm and forearm on the inner side of the first fixing plate 1 and the second fixing plate 2 respectively. After the servo motor 4 is started, it drives the second fixing plate 2 to rotate through the rotating plate 8. The second fixing plate 2 drives the forearm to rotate to perform passive elbow joint exercise.

[0032] An active exercise component is provided between the first fixed plate 1 and the second fixed plate 2. The active exercise component includes a round rod 19 rotatably connected to the inner side of the first fixed plate 1, a resistance band 31 installed on the outer side of the round rod 19, a second telescopic block 22 movably connected to the outer side of the round rod 19, a first ring 25 slidably disposed on the side of the first fixed plate 1, and multiple square blocks 28 installed on the inner side of the first ring 25. The resistance band 31 is fixedly connected to the second fixed plate 2. Separating the fixed rod 10 from the second fixed plate 2 releases the fixation between the second fixed plate 2 and the rotating plate 8. The user rotates the forearm to perform active exercise through the resistance of the resistance band 31. The user can perform both active and passive exercises and can adjust the exercise state according to the usage. Rotating the round rod 19 and pressing the square blocks 28 through the second telescopic block 22 locks the round rod 19 after rotation. When the round rod 19 rotates, it drives the resistance band 31 to expand and contract, adjusting the resistance of the resistance band 31. The resistance can be dynamically adjusted by expanding and contracting the resistance band 31 to avoid undertraining or overload and accurately match the patient's recovery progress.

[0033] A first arc-shaped rod 16 is installed on the outer side of the first fixed plate 1, and a second arc-shaped rod 17 is slidably arranged on the inner side of the first arc-shaped rod 16. The second arc-shaped rod 17 is fixedly connected to the second fixed plate 2, and the second fixed plate 2 rotates along the first arc-shaped rod 16 via the second arc-shaped rod 17.

[0034] The bottom of the first fixed plate 1 is provided with a square groove 3. The servo motor 4 is installed inside the square groove 3. The output end of the servo motor 4 is equipped with a worm gear 5. The side of the rotating plate 8 is equipped with a rotating rod 6. The end of the rotating rod 6 is equipped with a worm wheel 7. The worm wheel 7 and the worm gear 5 are meshed. When the worm gear 5 rotates, it drives the rotating rod 6 to rotate through the worm wheel 7.

[0035] Both the first fixing plate 1 and the second fixing plate 2 are symmetrically equipped with fixing straps 32 on their outer sides to facilitate fixing the user's arm.

[0036] In this embodiment, when training is required, if passive training is needed, the upper arm and forearm can be placed inside the first fixed plate 1 and the second fixed plate 2 respectively, and then fixed with the fixing strap 32. At this time, the servo motor 4 can be started, and the servo motor 4 drives the worm 5 to rotate. Since the servo motor 4 and the worm wheel 7 are meshed, when the worm 5 rotates, it can drive the rotating rod 6 to rotate through the worm wheel 7, and at the same time drive the rotating plate 8 to rotate. When the rotating plate 8 rotates, it can drive the second fixed plate 2 to rotate, so that the second fixed plate 2 rotates along the first arc rod 16 through the second arc rod 17, thereby driving the user's forearm to rotate, realizing passive elbow joint flexion and extension exercise.

[0037] Example 2

[0038] like Figure 1 - Figure 7As shown, based on Embodiment 1, a sliding groove 9 is provided on the inner side of the rotating plate 8, and a fixed rod 10 is slidably disposed on the inner side of the sliding groove 9. A first spring 11 is installed on the side of the fixed rod 10, and the end of the first spring 11 away from the fixed rod 10 is fixedly connected to the inner wall of the sliding groove 9. The fixed rod 10 can move along the sliding groove 9, at which time the first spring 11 retracts.

[0039] A fixing strip 12 is installed on the side of the rotating plate 8, and a movable block 13 is installed on the side of the fixing rod 10. A second spring 14 is installed on the inner side of the movable block 13. A first telescopic block 15 is installed on the end of the second spring 14 near the rotating plate 8. The first telescopic block 15 is slidably connected to the movable block 13. The fixing rod 10 is fixed by locking the movable block 13.

[0040] The first telescopic block 15 has a trapezoidal cross section, and the fixing strip 12 is located on the movement trajectory of the first telescopic block 15. When the first telescopic block 15 moves, it can squeeze the fixing strip 12.

[0041] A circular groove 18 is provided on the side of the first fixing plate 1. A circular rod 19 is rotatably connected to the inside of the circular groove 18. A rotating handle 29 is installed at the end of the circular rod 19. A guide rail 30 is installed on the inside of the first fixing plate 1. A resistance band 31 is movably connected to the guide rail 30. The size of the opening of the guide rail 30 is adapted to the size of the resistance band 31.

[0042] A first telescopic rod 20 and a third spring 21 are respectively installed on the outer side of the round rod 19. The end of the third spring 21 away from the round rod 19 is fixedly connected to the second telescopic block 22. The third spring 21 is sleeved on the outer side of the first telescopic rod 20.

[0043] A second ring 26 is installed on the side of the first fixed plate 1. A second telescopic rod 23 and a fourth spring 24 are respectively installed on the inner side of the circular groove 18. The ends of the second telescopic rod 23 and the fourth spring 24 are fixedly connected to the first ring 25. A pressing rod 27 is installed on the outer side of the first ring 25. The fourth spring 24 is sleeved on the outer side of the second telescopic rod 23, which can realize the locking after the circular rod 19 is rotated.

[0044] In this embodiment, when active training is required, the movable block 13 can be pulled. By pulling the movable block 13, the fixed rod 10 moves along the sliding groove 9. At this time, the first spring 11 contracts until the fixed rod 10 moves to the outside of the second fixed plate 2 and no longer inserts into the inside of the second fixed plate 2. While the movable block 13 moves, it can drive the inclined surface of the first telescopic block 15 to hit the fixed bar 12, causing the first telescopic block 15 to retract into the inside of the movable block 13. At this time, the second spring 14 contracts. When the first telescopic block 15 moves to the other side of the fixed bar 12 and no longer squeezes the fixed bar 12, the second spring 14 resets, thereby driving the first telescopic block 15 to reset. Then the movable block 13 can be locked to fix the fixed rod 10, thereby releasing the connection between the second fixed plate 2 and the rotating plate 8. Then the user can rotate the forearm to perform active training through the resistance of the resistance band 31.

[0045] Furthermore, the round rod 19 can be rotated by turning the handle 29. When the round rod 19 rotates, it drives the second telescopic block 22 to rotate. The square block 28 is on the movement trajectory of the second telescopic block 22. As the second telescopic block 22 rotates, its inclined surface impacts the square block 28. At this time, the first telescopic rod 20 and the third spring 21 retract. When the round rod 19 stops rotating, the second telescopic block 22 no longer presses against the square block 28. At this time, the first telescopic rod 20 and the third spring 21 reset. The second telescopic block 22 then moves between the adjacent square blocks 28, locking the round rod 19. If it is necessary to reverse the round rod 19, the pressing lever 27 can be pressed directly to retract the first telescopic rod 19. When ring 25 moves to the inside of circular groove 18, the second telescopic rod 23 and the fourth spring 24 retract. Then, by rotating handle 29, the circular rod 19 is rotated until it reaches the appropriate number of turns. Then, the pressing rod 27 is released, and the second telescopic rod 23 and the fourth spring 24, which were in the retracted state, are reset. At the same time, the first ring 25 and the square block 28 are reset. The square block 28 locks the second telescopic block 22 and the circular rod 19. Thus, the resistance band 31 is extended and retracted by rotating the circular rod 19. The resistance effect can be adjusted by adjusting the length of the resistance band 31, which is convenient for users to adjust according to the actual situation.

[0046] 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 limb joint exercise device, comprising a first fixation plate (1) and a second fixation plate (2), characterized in that, The first fixed plate (1) and the second fixed plate (2) are movably connected. A passive exercise component is provided between the first fixed plate (1) and the second fixed plate (2). The passive exercise component includes a servo motor (4) installed on the inner side of the first fixed plate (1), a rotating plate (8) rotatably connected to the inner side of the first fixed plate (1), and a fixed rod (10) slidably disposed on the inner side of the rotating plate (8). The fixed rod (10) is movably connected to the second fixed plate (2). The user places the upper arm and forearm on the inner side of the first fixed plate (1) and the second fixed plate (2) respectively. After the servo motor (4) is started, it drives the second fixed plate (2) to rotate through the rotating plate (8). The second fixed plate (2) drives the forearm to rotate to perform passive elbow joint exercise. An active exercise component is provided between the first fixed plate (1) and the second fixed plate (2). The active exercise component includes a round rod (19) rotatably connected to the inner side of the first fixed plate (1), a resistance band (31) installed on the outer side of the round rod (19), a second telescopic block (22) movably connected to the outer side of the round rod (19), a first ring (25) slidably disposed on the side of the first fixed plate (1), and a plurality of square blocks (28) installed on the inner side of the first ring (25). The resistance band (31) is fixedly connected to the second fixed plate (2). Separating the fixed rod (10) from the second fixed plate (2) releases the fixation between the second fixed plate (2) and the rotating plate (8). The user rotates the forearm to actively exercise by resisting the resistance of the resistance band (31). Rotating the round rod (19) and squeezing the square blocks (28) by the second telescopic block (22) locks the round rod (19) after rotation. When the round rod (19) rotates, it drives the resistance band (31) to expand and contract, adjusting the resistance of the resistance band (31).

2. The limb joint exercise device according to claim 1, characterized in that, A first arc-shaped rod (16) is installed on the outer side of the first fixing plate (1), and a second arc-shaped rod (17) is slidably arranged on the inner side of the first arc-shaped rod (16). The second arc-shaped rod (17) is fixedly connected to the second fixing plate (2).

3. The limb joint exercise device according to claim 2, characterized in that, The bottom of the first fixed plate (1) is provided with a square groove (3), the servo motor (4) is installed inside the square groove (3), the output end of the servo motor (4) is provided with a worm (5), the side of the rotating plate (8) is provided with a rotating rod (6), the end of the rotating rod (6) is provided with a worm wheel (7), and the worm wheel (7) meshes with the worm (5).

4. The limb joint exercise device according to claim 1, characterized in that, The rotating plate (8) has a sliding groove (9) on its inner side. The fixed rod (10) is slidably disposed on the inner side of the sliding groove (9). A first spring (11) is installed on the side of the fixed rod (10). The end of the first spring (11) away from the fixed rod (10) is fixedly connected to the inner wall of the sliding groove (9).

5. The limb joint exercise device according to claim 4, characterized in that, A fixing strip (12) is installed on the side of the rotating plate (8), and a movable block (13) is installed on the side of the fixing rod (10). A second spring (14) is installed on the inner side of the movable block (13). A first telescopic block (15) is installed on the end of the second spring (14) near the rotating plate (8). The first telescopic block (15) and the movable block (13) are slidably connected.

6. The limb joint exercise device according to claim 5, characterized in that, The first telescopic block (15) has a trapezoidal cross section, and the fixing strip (12) is located on the movement trajectory of the first telescopic block (15).

7. The limb joint exercise device according to claim 1, characterized in that, The first fixing plate (1) has a circular groove (18) on its side. The circular rod (19) is rotatably connected to the inside of the circular groove (18). A rotating handle (29) is installed at the end of the circular rod (19). A guide rail (30) is installed on the inside of the first fixing plate (1). The resistance band (31) is movably connected to the guide rail (30). The opening size of the guide rail (30) is adapted to the size of the resistance band (31).

8. The limb joint exercise device according to claim 1, characterized in that, The outer side of the round rod (19) is respectively equipped with a first telescopic rod (20) and a third spring (21). The end of the third spring (21) away from the round rod (19) is fixedly connected to the second telescopic block (22). The third spring (21) is sleeved on the outer side of the first telescopic rod (20).

9. A limb joint exercise device according to claim 7, characterized in that, A second ring (26) is installed on the side of the first fixing plate (1). A second telescopic rod (23) and a fourth spring (24) are respectively installed on the inner side of the circular groove (18). The ends of the second telescopic rod (23) and the fourth spring (24) are fixedly connected to the first ring (25). A pressing rod (27) is installed on the outer side of the first ring (25). The fourth spring (24) is sleeved on the outer side of the second telescopic rod (23).

10. A limb joint exercise device according to claim 1, characterized in that, Fixing straps (32) are symmetrically installed on the outer sides of both the first fixing plate (1) and the second fixing plate (2).

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