Ankle joint rehabilitation training device

Abstract

The utility model discloses a kind of ankle joint rehabilitation training devices, including base, pedal and swing motor;The base is equipped with hinged seat and drive box;The bottom of the pedal is equipped with mounting portion, rotating rod is fixed on the hinged seat and is rotatably installed on the mounting portion, one end of the rotating rod extends to the drive box, and elastic pulling member is equipped between the front and rear of pedal and base;The swing motor is installed in the drive box, and the output end of swing motor is connected with the rotating rod through clutch mechanism.The utility model can consider active training and passive training of ankle joint, and can be quickly switched between active training and passive training of ankle joint.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation instrument technology, specifically to an ankle joint rehabilitation training device. Background Technology

[0002] Ankle rehabilitation trainers are specialized devices used for ankle rehabilitation therapy. They can be categorized into active ankle training devices and passive ankle training devices based on the training method. Active ankle training devices are ankle flexion and extension trainers. Patients can perform active flexion and extension exercises of the ankle joint using foot pedals or similar devices. The resistance and angle can be adjusted as needed. This type of trainer helps strengthen the muscles around the ankle joint, improve joint flexibility and stability, and is suitable for use in the mid-stage of rehabilitation when patients have some active movement ability. Passive ankle training devices are ankle CPM machines. They primarily use mechanical devices to passively flex and extend the ankle joint. They are suitable for patients in the early postoperative period or those with severely limited joint movement who have difficulty performing active movements. They can help patients restore joint range of motion within a painless or minimally painful range. Existing ankle rehabilitation trainers cannot simultaneously perform both active and passive ankle training, nor can they quickly switch between the two modes. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an ankle joint rehabilitation trainer that can simultaneously perform active and passive ankle joint training, and allows for rapid switching between the two methods.

[0004] This utility model provides an ankle joint rehabilitation training device, comprising:

[0005] A base, on which a hinge seat and a drive box are provided;

[0006] The pedal has a mounting part at its bottom, and a rotating rod that is rotatably mounted on the hinge seat is fixed on the mounting part. One end of the rotating rod extends into the drive box. Elastic tension members are provided between the front and rear of the pedal and the base.

[0007] A swing motor is installed inside the drive box, and the output end of the swing motor is connected to the rotating rod through a clutch mechanism.

[0008] Furthermore, the hinged seat includes support plates arranged opposite each other on the left and right, and the mounting part is located between the two support plates.

[0009] Furthermore, the elastic tensioning element is an elastic rope.

[0010] Furthermore, the pedal is equipped with a foot restraint strap.

[0011] Furthermore, the clutch mechanism includes a first gear, a second gear, a sliding seat, a third gear, a fourth gear, and a moving mechanism;

[0012] The first gear and the second gear are coaxially arranged. The first gear is coaxially fixed to one end of the rotating rod that extends into the drive box, and the second gear is coaxially fixed to the output shaft of the swing motor.

[0013] The sliding seat is slidably mounted in the drive box along the axial direction of the first gear and the second gear. A transmission rod extending along the axial direction of the first gear and the second gear is rotatably mounted on the sliding seat. The third gear and the fourth gear are coaxially fixed on the transmission rod.

[0014] The moving mechanism is used to drive the sliding seat to move between a first position and a second position. When the sliding seat is in the first position, the third gear meshes with the first gear and the fourth gear meshes with the second gear. When the sliding seat is in the second position, the first gear disengages from the third gear and / or the second gear disengages from the fourth gear.

[0015] Furthermore, the moving mechanism is a push-pull electromagnet, the output shaft of which extends along the sliding direction of the sliding seat and is fixedly connected to the sliding seat, so that when the push-pull electromagnet is energized, it pushes the sliding seat to the first position, and when the push-pull electromagnet is de-energized, it pulls the sliding seat to the second position.

[0016] Furthermore, it also includes a power module, a switch, and a delay module. The power module is electrically connected to the switch, the switch is electrically connected to the push-pull electromagnet and the delay module respectively, and the delay module is electrically connected to the swing motor.

[0017] Furthermore, the delay module employs a time relay.

[0018] Furthermore, the switch is located on the top of the drive housing.

[0019] Furthermore, the swing motor is fixed to the bottom plate of the drive box, the inner side of the drive box is provided with a sliding groove, the sliding seat is slidably installed in the sliding groove, and the push-pull electromagnet is fixed to the side plate of the drive box.

[0020] The beneficial effects of this utility model are reflected in:

[0021] During passive ankle training, a clutch mechanism connects the rotating rod and the swing motor. The patient places their foot on the pedal, and the swing motor drives the rotating rod to swing back and forth, causing the pedal to swing up and down, thus passively flexing and extending the ankle joint. During active ankle training, the clutch mechanism disconnects the transmission between the rotating rod and the output of the swing motor. In this case, the pedal's up-and-down swing is unaffected by the swing motor, and the elastic tension member between the pedal and the base provides resistance to the pedal's swing, allowing the patient to place their foot on the pedal for active flexion and extension training. Therefore, this application can accommodate both active and passive ankle training, and allows for rapid switching between the two modes. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the structure during passive ankle training according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure during active ankle joint training according to an embodiment of the present invention;

[0026] Figure 4 This is a circuit schematic diagram of an embodiment of the present invention.

[0027] In the attached diagram, 100-base; 110-hinged seat; 120-drive box; 121-slide groove; 200-pedal; 210-mounting part; 220-rotating rod; 230-elastic tensioning element; 240-foot restraint strap; 300-swing motor; 310-clutch mechanism; 311-first gear; 312-second gear; 313-sliding seat; 314-third gear; 315-fourth gear; 316-push-pull electromagnet; 317-transmission rod; 400-switch. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0029] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0030] like Figures 1-4 As shown, this utility model embodiment provides an ankle joint rehabilitation trainer, including a base 100, a pedal 200, and a swing motor 300.

[0031] The base 100 is provided with a hinge seat 110 and a drive box 120.

[0032] The bottom of the pedal 200 is provided with a mounting part 210, and a rotating rod 220 is fixed on the mounting part 210 and rotatably mounted on the hinge seat 110. One end of the rotating rod 220 extends into the drive box 120. Specifically, the hinge seat 110 includes left and right opposite support plates, and the mounting part 210 is located between the two support plates.

[0033] Elastic tension members 230 are provided between the front and rear of the pedal 200 and the base 100, and the elastic tension members 230 are preferably elastic ropes.

[0034] To facilitate securing the patient's foot to the footrest 200, the footrest 240 is provided on the footrest 200.

[0035] The swing motor 300 is installed in the drive box 120, and the output end of the swing motor 300 is connected to the rotating rod 220 through the clutch mechanism 310.

[0036] During passive ankle training, the clutch mechanism 310 connects the rotating rod 220 and the swing motor 300. The patient places their foot on the pedal 200, at which point the swing motor 300 drives the rotating rod 220 to swing back and forth, causing the pedal 200 to swing up and down, thereby passively flexing and extending the ankle joint. During active ankle training, the clutch mechanism 310 disconnects the transmission between the rotating rod 220 and the output end of the swing motor 300. In this case, the up-and-down swing of the pedal 200 is unaffected by the swing motor 300. The elastic tension member 230 between the pedal 200 and the base 100 provides resistance to the swing of the pedal 200, allowing the patient to place their foot on the pedal 200 for active flexion and extension training. Therefore, this application can accommodate both active and passive ankle training, and allows for rapid switching between the two modes.

[0037] In some embodiments, refer to Figure 2 and Figure 3 The clutch mechanism 310 includes a first gear 311, a second gear 312, a sliding seat 313, a third gear 314, a fourth gear 315, and a moving mechanism.

[0038] The first gear 311 and the second gear 312 are coaxially arranged. The first gear 311 is coaxially fixed to one end of the rotating rod 220 that extends into the drive box 120, and the second gear 312 is coaxially fixed to the output shaft of the swing motor 300.

[0039] The sliding seat 313 is slidably mounted in the drive box 120 along the axial direction of the first gear 311 and the second gear 312. A transmission rod 317 extending along the axial direction of the first gear 311 and the second gear 312 is rotatably mounted on the sliding seat 313. The third gear 314 and the fourth gear 315 are coaxially fixed on the transmission rod 317.

[0040] The moving mechanism is used to drive the slide block 313 to move between a first position and a second position, such as Figure 2 As shown, when the sliding seat 313 is in the first position, the third gear 314 meshes with the first gear 311, and the fourth gear 315 meshes with the second gear 312. At this time, a transmission connection is achieved between the output shaft of the swing motor 300 and the rotating rod 220, as follows: Figure 3 As shown, when the sliding seat 313 is in the second position, the first gear 311 separates from the third gear 314, and / or the second gear 312 separates from the fourth gear 315. At this time, the output shaft of the swing motor 300 is disconnected from the rotating rod 220.

[0041] It is understandable that when the sliding seat 313 is in the second position, the first gear 311 can be separated from the third gear 314, or the second gear 312 can be separated from the fourth gear 315, or the first gear 311 can be separated from the third gear 314 and the second gear 312 can be separated from the fourth gear 315.

[0042] In this embodiment, the moving mechanism is specifically a push-pull electromagnet 316. The output shaft of the push-pull electromagnet 316 extends along the sliding direction of the sliding seat 313 and is fixedly connected to the sliding seat 313, so that when the push-pull electromagnet 316 is energized, it pushes the sliding seat 313 to the first position, and when the push-pull electromagnet 316 is de-energized, it pulls the sliding seat 313 to the second position.

[0043] Reference Figure 4 This embodiment also includes a power module, a switch 400, and a delay module. The power module is electrically connected to the switch 400. The switch 400 is electrically connected to the push-pull electromagnet 316 and the delay module, respectively. The delay module is electrically connected to the swing motor 300.

[0044] With the above design, when switch 400 is pressed, push-pull electromagnet 316 is immediately energized and attracted, pushing slide seat 313 to move to the first position. After switch 400 is pressed, the delay module can control the swing motor 300 to be energized for a delay. Slide seat 313 moves to the first position, the first gear 311 and the third gear 314 complete meshing, and the second gear 312 and the fourth gear 315 complete meshing. Then the swing motor 300 is started. This not only enables one-button start, but also ensures that all gears do not rotate during the process of the first gear 311 meshing with the third gear 314 and the second gear 312 meshing with the fourth gear 315, which can reduce collisions and wear during the meshing process of each gear. When switch 400 is turned off, the swing motor 300 and the push-pull electromagnet 316 are de-energized. The swing motor 300 stops working, and at the same time, the output shaft of the push-pull electromagnet 316 returns to its original position under the action of the spring, pulling the sliding seat 313 back to the second position. At this time, the first gear 311 separates from the third gear 314, and the second gear 312 separates from the fourth gear 315, allowing for active ankle joint training.

[0045] Optionally, the delay module can be controlled by a time relay, or by a PLC or a microcontroller.

[0046] For ease of control, switch 400 is located on the top of drive box 120.

[0047] In some embodiments, the swing motor 300 is fixed on the bottom plate of the drive box 120, the inner side of the side plate of the drive box 120 is provided with a slide groove 121, and the sliding seat 313 is slidably installed in the slide groove 121 to improve the stability of the sliding seat 313. The push-pull electromagnet 316 is fixed on the side plate of the drive box 120.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An ankle joint rehabilitation training device, characterized in that, include: A base, on which a hinge seat and a drive box are provided; The pedal has a mounting part at its bottom, and a rotating rod that is rotatably mounted on the hinge seat is fixed on the mounting part. One end of the rotating rod extends into the drive box. Elastic tension members are provided between the front and rear of the pedal and the base. A swing motor is installed inside the drive box, and the output end of the swing motor is connected to the rotating rod through a clutch mechanism.

2. The ankle joint rehabilitation training device according to claim 1, characterized in that, The hinged seat includes support plates arranged opposite each other on the left and right, and the mounting part is located between the two support plates.

3. The ankle joint rehabilitation training device according to claim 1, characterized in that, The elastic tensioning element is an elastic rope.

4. The ankle joint rehabilitation training device according to claim 1, characterized in that, The pedal is equipped with a foot restraint strap.

5. The ankle joint rehabilitation training device according to claim 1, characterized in that, The clutch mechanism includes a first gear, a second gear, a sliding seat, a third gear, a fourth gear, and a moving mechanism; The first gear and the second gear are coaxially arranged. The first gear is coaxially fixed to one end of the rotating rod that extends into the drive box, and the second gear is coaxially fixed to the output shaft of the swing motor. The sliding seat is slidably mounted in the drive box along the axial direction of the first gear and the second gear. A transmission rod extending along the axial direction of the first gear and the second gear is rotatably mounted on the sliding seat. The third gear and the fourth gear are coaxially fixed on the transmission rod. The moving mechanism is used to drive the sliding seat to move between a first position and a second position. When the sliding seat is in the first position, the third gear meshes with the first gear and the fourth gear meshes with the second gear. When the sliding seat is in the second position, the first gear disengages from the third gear and / or the second gear disengages from the fourth gear.

6. The ankle joint rehabilitation training device according to claim 5, characterized in that, The moving mechanism is a push-pull electromagnet. The output shaft of the push-pull electromagnet extends along the sliding direction of the sliding seat and is fixedly connected to the sliding seat, so that when the push-pull electromagnet is energized, it pushes the sliding seat to the first position, and when the push-pull electromagnet is de-energized, it pulls the sliding seat to the second position.

7. The ankle joint rehabilitation training device according to claim 6, characterized in that, It also includes a power module, a switch, and a delay module. The power module is electrically connected to the switch, the switch is electrically connected to the push-pull electromagnet and the delay module, and the delay module is electrically connected to the swing motor.

8. The ankle joint rehabilitation training device according to claim 7, characterized in that, The delay module uses a time relay.

9. The ankle joint rehabilitation training device according to claim 7, characterized in that, The switch is located on the top of the drive box.

10. The ankle joint rehabilitation training device according to claim 6, characterized in that, The swing motor is fixed to the bottom plate of the drive box, and the inner side of the side plate of the drive box is provided with a sliding groove. The sliding seat is slidably installed in the sliding groove, and the push-pull electromagnet is fixed to the side plate of the drive box.

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