Ankle joint exerciser

Abstract

The utility model discloses an ankle joint trainer, contain casing, movable footboard, movable footboard drive mechanism and leg support plate, and the leg support plate is fixed on the casing upside, and movable footboard articulates on the casing upside and is connected with movable footboard drive mechanism and is driven along the rotation of hinged axle by movable footboard drive mechanism drive. The utility model discloses through drive motor control movable footboard rotates back and forth along the hinged axle to promote the plantar flexion and dorsiflexion movement of ankle joint, has improved blood flow rate, can better prevent thrombus.

Description

Technical Field

[0001] This utility model relates to a training device, particularly an ankle joint training device, and belongs to the field of medical device technology. Background Technology

[0002] A thrombus is a small mass that forms on the surface of blood vessels in the cardiovascular system at sites of rupture or repair. In variable fluid-dependent thrombi, thrombi consist of insoluble fibrin, deposited platelets, accumulated white blood cells, and trapped red blood cells. With improved living standards, obesity-induced hyperlipidemia and subsequent thrombosis have become a problem plaguing many middle-aged and elderly people. Currently, the only non-pharmacological method for thrombosis prevention is exercise to reduce fat, but this method is slow to take effect and difficult to maintain long-term. Therefore, it is necessary to design a medical device that can help promote blood flow, thereby providing better prevention of thrombosis. Utility Model Content

[0003] The technical problem to be solved by this invention is to provide an ankle joint trainer that promotes blood flow and prevents thrombosis through plantar flexion and dorsiflexion movements of the ankle joint.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: An ankle joint trainer includes a housing, a movable foot plate, a movable foot plate drive mechanism, and a leg support plate. The leg support plate is fixed to the upper side of the housing, and the movable foot plate is hinged to the upper side of the housing and connected to the movable foot plate drive mechanism, which drives it to rotate along the hinge axis.

[0005] Furthermore, the movable foot plate driving mechanism includes a slider, a swing arm, a guide rail, a nut, a screw, a screw bracket, a first pulley, a second pulley, a synchronous belt, and a drive motor. The guide rail is arranged perpendicular to the hinge axis of the movable foot plate and is fixed inside the housing. The slider is slidably arranged on the guide rail and can slide back and forth along the length of the guide rail. One end of the swing arm is hinged to the slider, and the other end of the swing arm is hinged to the movable foot plate. The screw is parallel to the guide rail and is arranged on one side of the guide rail, and both ends of the screw are rotatably arranged on the screw brackets on both sides. The nut is sleeved on the screw and threadedly connected to the screw. The nut is fixedly connected to the slider. The first pulley is fixed to one end of the screw, and the second pulley is fixed to the output shaft of the drive motor. The synchronous belt is arranged on the first pulley and the second pulley.

[0006] Furthermore, the housing is provided with a power interface, which is connected to the motor drive module to supply power to the motor drive module. The motor drive module is connected to the drive motor to control the operation of the drive motor.

[0007] Furthermore, the movable footboard includes a flat foot plate, a curved heel surround, and an external support. The curved heel surround is perpendicular to the flat foot plate, and one side edge of the curved heel surround is fixedly connected to one end edge of the flat foot plate to form a bucket-shaped heel support structure. The external support is fixed to the outside of the curved heel surround. The external support has hinge structures extending outward on both sides, and the two sides of the external support are hinged to the shell through the hinge structures.

[0008] Furthermore, the foot plate and the curved heel panel have holes for strapping.

[0009] Furthermore, the leg support plate has an overall U-shaped structure, and the leg support plate adopts a variable diameter structure that matches the shape of the human lower leg along its length. There are binding strap through holes on both sides of the leg support plate.

[0010] Furthermore, a cable tie is provided inside the through hole of the cable tie, and the cable tie is an elastic Velcro cable tie.

[0011] Furthermore, heat dissipation holes are provided on both sides of the bottom of the housing.

[0012] Compared with the prior art, this utility model has the following advantages and effects: This utility model discloses an ankle joint trainer, which controls the movable foot plate to rotate back and forth along the hinge axis by driving a motor, thereby promoting plantar flexion and dorsiflexion of the ankle joint, improving blood flow rate, and better preventing thrombosis. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an ankle joint training device according to the present invention.

[0014] Figure 2 This is an internal schematic diagram of an ankle joint trainer according to the present invention. Detailed Implementation

[0015] To elaborate on the technical solutions adopted by this utility model to achieve the intended technical objectives, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Furthermore, the technical means or technical features in the embodiments of this utility model can be replaced without creative effort. The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figure 1As shown, this utility model discloses an ankle joint trainer, comprising a housing 1, a movable foot plate 2, a movable foot plate drive mechanism, and a leg support plate 3. The leg support plate 3 is fixed to the upper side of the housing 1, and the movable foot plate 2 is hinged to the upper side of the housing 1 and connected to the movable foot plate drive mechanism, which drives it to rotate along the hinge axis. The movable foot plate 2 and the leg support plate 3 are arranged on the same straight line, and the distance between the movable foot plate 2 and the leg support plate 3 matches the distance between the foot and the lower leg of the human body.

[0017] like Figure 2 As shown, the movable footplate drive mechanism includes a slider 4, a swing arm 5, a guide rail 6, a nut 7, a screw 8, a screw bracket 9, a first pulley 10, a second pulley 11, a synchronous belt 12, and a drive motor 13. The guide rail 6 is set perpendicular to the hinge axis of the movable footplate 2 and fixed inside the housing 1, that is, the guide rail 6 is set along the length of the entire ankle joint trainer. The slider 4 is slidably mounted on the guide rail 6 and can slide back and forth along the length of the guide rail 6. Since the slider 4 only needs to drive the movable footplate 2 to rotate back and forth along the hinge axis, the stroke length required for the slider 4 is not long, that is, the length required for the guide rail 6 is relatively short. However, the movable footplate 2 requires a large space, so the motor and other components cannot be installed in the housing at its bottom. Therefore, the guide rail 6 is far from the movable footplate 2, so the slider 4 adopts a long strip structure extending to the bottom of the movable footplate 2. One end of the swing arm 5 is hinged to the slider 4, and the other end of the swing arm 5 is hinged to the movable foot plate 2. The screw 8 is parallel to the guide rail 6 and is set on one side of the guide rail 6, with both ends of the screw 8 rotatably mounted on the screw brackets 9 on both sides. The nut 7 is sleeved on the screw 8 and threadedly connected to the screw 8. The nut 7 is fixedly connected to the slider 4. The first pulley 10 is fixed to one end of the screw 8, and the second pulley 11 is fixed to the output shaft of the drive motor 13. The synchronous belt 12 is set on the first pulley 10 and the second pulley 11. During operation, the drive motor 13 drives the second pulley 11 to rotate, and the second pulley 11 drives the first pulley 10 to rotate synchronously through the synchronous belt 12. The first pulley 10 drives the screw 8 to rotate, thereby driving the nut 7 to move on the screw 8. The nut 7 drives the slider 4 to slide on the guide rail 6, and the slider 4 drives the movable foot plate 2 to rotate along the hinge axis through the swing arm 5.

[0018] A speed sensor is also installed on the output shaft of the drive motor 13. The speed sensor collects the speed of the drive motor 13 in real time, so as to cooperate with the motor drive module 15 to control the drive motor 13.

[0019] The housing 1 is provided with a power interface 14 for connecting to an external power source. The power interface 14 is connected to the motor drive module 15 to supply power to the motor drive module 15, and the motor drive module 15 is connected to the drive motor 13 to control the operation of the drive motor 13. In this embodiment, the motor drive module 15 adopts a conventional model such as L298N, TB6612FNG or DRV8833.

[0020] The movable footplate 2 includes a flat sole plate 16, a curved heel support plate 17, and an external bracket 18. The curved heel support plate 17 is perpendicular to the flat sole plate 16, and one edge of the curved heel support plate 17 is fixedly connected to one end edge of the flat sole plate 16 to form a funnel-shaped heel support structure. The external bracket 18 is fixed to the outside of the curved heel support plate 17. The external bracket 18 has outwardly protruding hinge structures on both sides, and the two sides of the external bracket 18 are hinged to the housing 1 via these hinge structures. In use, the heel is placed within the funnel-shaped heel support structure formed by the curved heel support plate 17 and the flat sole plate 16. Then, driven by the drive motor 13, the movable footplate 2 rotates back and forth, thereby promoting plantar flexion and dorsiflexion of the ankle joint. The swing arm 5 is hinged to the external bracket 18 in the movable footplate 2. Since the external bracket 18 is located outside the curved heel support plate 17, that is, outside the heel position of the movable footplate 2.

[0021] The foot plate 16 and the heel arc panel 17 have strap holes 19.

[0022] The leg support plate 3 has a U-shaped structure. Along the length of the leg support plate 3, it adopts a variable diameter structure that matches the shape of the human lower leg. There are strapping holes 19 on both sides of the leg support plate 3.

[0023] A strap (not shown in the attached diagram) is installed inside the strap perforation 19. The strap is an elastic Velcro strap. When the heel rests on the movable footboard 2 and the lower leg rests on the leg support board 3, the ankle is secured by the elastic Velcro strap, allowing the ankle to perform plantar flexion and dorsiflexion movements as the movable footboard 2 rotates.

[0024] Heat dissipation holes 20 are provided on both sides of the bottom of the housing 1. The drive motor 13 generates heat when it is working, and the heat dissipation holes 20 can dissipate the heat generated by the drive motor 13.

[0025] The working principle of this ankle joint trainer is as follows: The user places their heel in the bucket-shaped heel support structure formed by the heel arc-shaped baffle 17 and the foot plate 16, and then places their lower leg on the leg support plate 3. The foot and lower leg are then fixed in the movable foot plate 2 and the leg support plate 3 respectively by elastic Velcro straps. Then, the drive motor 13 starts to work, and the drive motor 13 drives the second pulley 11 to rotate. The second pulley 11 drives the first pulley 10 to rotate synchronously through the synchronous belt 12. The first pulley 10 drives the screw 8 to rotate, thereby driving the nut 7 to move on the screw 8. The nut 7 drives the slider 4 to slide on the guide rail 6. The slider 4 drives the movable foot plate 2 to rotate along the hinge axis through the swing arm 5. The movable foot plate 2 rotates back and forth, thereby promoting plantar flexion and dorsiflexion of the ankle joint, improving blood flow and better preventing thrombosis.

[0026] This utility model discloses an ankle joint trainer that uses a drive motor to control the movable foot plate to rotate back and forth along the hinge axis, thereby promoting plantar flexion and dorsiflexion of the ankle joint, increasing blood flow rate, and better preventing thrombosis.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. An ankle joint training device, characterized in that: The device includes a housing, movable feet, a movable feet drive mechanism, and a leg support plate. The leg support plate is fixed to the upper side of the housing. The movable feet are hinged to the upper side of the housing and connected to the movable feet drive mechanism, which drives them to rotate along the hinge axis. The movable feet drive mechanism includes a slider, a swing arm, a guide rail, a nut, a screw, a screw support, a first pulley, a second pulley, a synchronous belt, and a drive motor. The guide rail is perpendicular to the hinge axis of the movable feet and fixed inside the housing. The slider is slidably mounted on the guide rail and can slide back and forth along the length of the guide rail. One end of the swing arm is hinged to the slider, and the other end of the swing arm is hinged to the movable feet. The screw is parallel to the guide rail and is mounted on one side of the guide rail, with both ends of the screw rotatably mounted on the screw supports on both sides. The nut is fitted onto the screw and threadedly connected to the screw. The nut is fixedly connected to the slider. The first pulley is fixed to one end of the screw, and the second pulley is fixed to the output shaft of the drive motor. The synchronous belt is mounted on the first pulley and the second pulley.

2. An ankle joint trainer according to claim 1, characterized in that: The housing is provided with a power interface, which is connected to the motor drive module to supply power to the motor drive module. The motor drive module is connected to the drive motor to control the operation of the drive motor.

3. An ankle joint trainer according to claim 1, characterized in that: The movable footboard includes a flat foot plate, an arc-shaped heel surround, and an external support. The arc-shaped heel surround is perpendicular to the flat foot plate, and one side edge of the arc-shaped heel surround is fixedly connected to one end edge of the flat foot plate to form a bucket-shaped heel support structure. The external support is fixed to the outside of the arc-shaped heel surround. The external support has hinge structures that extend outward on both sides, and the two sides of the external support are hinged to the shell through the hinge structures.

4. An ankle joint trainer according to claim 3, characterized in that: The foot plate and the curved heel panel have holes for strapping.

5. An ankle joint trainer according to claim 1, characterized in that: The leg support plate has a U-shaped structure. The leg support plate adopts a variable diameter structure that matches the shape of the human lower leg along its length. There are binding strap through holes on both sides of the leg support plate.

6. An ankle joint trainer according to claim 4 or 5, characterized in that: The cable tie is installed inside the hole of the cable tie, and the cable tie is an elastic Velcro cable tie.

7. An ankle joint trainer according to claim 1, characterized in that: The bottom of the housing has ventilation holes on both sides.

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