Hip, knee and ankle three-joint joint motion device

Abstract

The present invention discloses a hip, knee and ankle three-joint joint motion device, which relates to the field of rehabilitation treatment equipment. A hip, knee and ankle three-joint joint motion device comprises a carrier plate, a telescopic mechanism is arranged on the carrier plate, the telescopic mechanism comprises a shell and a push rod, a driving motor is arranged in the shell, a footrest is arranged on the push rod, the footrest comprises a leg plate and a foot plate which are rotatably connected, a protective cover is connected to the leg plate and the foot plate, an elastic rope is arranged between the leg plate and the foot plate, two triangular brackets are arranged on the rear side of the leg plate, a cross bar is arranged between the two triangular brackets, a pulley is rotatably connected to the cross bar, a resistance adjustment mechanism is arranged in the middle of the triangular bracket, a limit block is arranged at the front end of the push rod, a fixed shaft is rotatably connected to the lower part of the carrier plate, a locking bolt is arranged on the fixed shaft, and the telescopic mechanism is also equipped with a remote control. The hip, knee and ankle three-joint joint motion device of the present invention is easy to operate, small in size, and can perform rehabilitation training on the hip, knee and ankle three joints, with various training methods and fast rehabilitation rate.

Description

Technical Field

[0001] The invention belongs to the field of rehabilitation treatment equipment, and in particular relates to a hip, knee, and ankle three-joint combined motion device. Background Art

[0002] Lower limb motor dysfunction caused by lower limb weakness due to cerebrovascular disease, fractures and joint replacements, etc., urgently requires a rehabilitation system that integrates resistance exercise, active exercise, active assistance and passive exercise functions to help patients improve their lower limb motor function. Currently, rehabilitation equipment such as rehabilitation bicycles and four-limb linkage commonly used in clinical practice have the disadvantages of being bulky, inconvenient to carry and expensive. Therefore, we designed a portable home use joint exercise device for the hip, knee and ankle joints.

[0003] The current rehabilitation devices are mainly lower limb joint rehabilitation devices, which can only perform rehabilitation training on the knee or ankle joints, and cannot perform joint rehabilitation training on the hip, knee, and ankle joints, wasting the patient's precious rehabilitation time. Moreover, the training method of the existing devices is basically passive training, that is, the patient's muscles do not need to exert force, and passive training is completely achieved under the drive of the mechanism. The training method is relatively simple. Although passive training is suitable for the initial training of joints, it is not conducive to muscle strength training when the joints recover to a certain degree. Moreover, most rehabilitation devices are relatively large in size and weight, which are inconvenient to carry and transport. Summary of the invention

[0004] The present invention provides a hip, knee and ankle three-joint combined exercise device, which is intended to solve the problem that the prior art can only train the knee joint and the training method is single.

[0005] A hip, knee and ankle three-joint combined motion device comprises a carrier plate, a telescopic mechanism is arranged on the carrier plate, the telescopic mechanism comprises a shell and a push rod, the shell is fixedly connected to the carrier plate, a driving motor is arranged in the shell, a foot rest is arranged on the push rod, the foot rest comprises a leg plate and a foot plate rotatably connected, protective covers are connected to the leg plate and the foot plate, an elastic rope is arranged between the leg plate and the foot plate, two parallel triangular brackets are arranged on the rear side of the leg plate, a cross bar is arranged between the two triangular brackets, two cross bars are arranged, pulleys are rotatably connected to the cross bars, the pulleys are slidably connected to the push rod, a resistance adjustment mechanism is arranged in the middle of the triangular bracket, a limit block is arranged at the front end of the push rod, a fixed shaft is rotatably connected to the lower part of the carrier plate, a locking bolt is threadedly connected to the fixed shaft, and the telescopic mechanism is also equipped with a remote control.

[0006] Principle of the present invention:

[0007] By adopting this technical solution, when a patient needs rehabilitation training, the device is first installed on a bed or a flat plate through a fixed axis, and then the patient is allowed to lie flat and the patient's feet are placed in the foot rest. During the initial training process, the carrier plate is first rotated and adjusted, the push rod is moved to a suitable angle and fixed, and then the telescopic mechanism is started to perform rehabilitation exercises on the patient's hip and knee joints. After a period of training, the push rod can be fixed, and the patient can use force to drive the foot rest to move along the push rod for active training. During the active training, the movement resistance can be adjusted through the resistance adjustment mechanism. During use, the patient can also press the footboard with the sole of the foot to exercise the ankle joint.

[0008] Furthermore, the resistance adjustment mechanism includes a horizontal plate arranged between two triangular brackets, a rotating shaft rotatably connected to the triangular bracket is arranged between the two horizontal plates, the rotating shaft is connected to a control knob that passes through the triangular bracket, a right-handed thread is arranged from one end of the rotating shaft to the middle part, and a left-handed thread is arranged from the other end of the rotating shaft to the middle part, resistance plates are threadedly connected to both ends of the rotating shaft, and the lower part of the resistance plate is arranged in an arc shape.

[0009] In this way, the resistance can be flexibly adjusted, which is more conducive to the patient's rehabilitation training.

[0010] Furthermore, a detachable friction pad is provided on the inner side of the resistance sheet.

[0011] Further, the surface of the control knob is marked with scale marking lines.

[0012] Furthermore, a disc is arranged on the fixed shaft, and angle scale lines are marked on the disc.

[0013] Furthermore, a fixing belt is provided on the upper end of the leg plate, and a Velcro is provided on the fixing belt.

[0014] Beneficial effects of the present invention:

[0015] 1. The present invention discloses a hip, knee and ankle three-joint combined motion device, which is provided with a carrier plate, a telescopic mechanism, a push rod, a resistance adjustment mechanism, a fixed shaft and a locking bolt. It can not only perform rehabilitation training on the patient's knee joint, but also fix the patient's hip joint. Moreover, the training methods are diverse. Not only can the telescopic mechanism be activated for passive training, but the patient can also apply force himself for active training. During the active training process, the movement resistance can be flexibly adjusted according to the patient's rehabilitation situation. At the same time, the push rod can be retracted for assistance, so that the training effect is better and more comprehensive.

[0016] 2. The present invention provides a hip, knee and ankle three-joint combined exercise device. The footrest of the present invention is composed of a leg plate and a foot plate. The footrest is provided with an elastic rope, a protective cover and a fixing belt. It can not only protect and fix the feet of different patients, but also perform rehabilitation training on the ankle joints of the patients. The device is small in size and low in cost, easy to move and carry, and can perform rehabilitation exercises on the patient's hip, knee and ankle three joints at the same time, with better training effect and faster rehabilitation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a hip, knee and ankle three-joint combined motion device of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a hip, knee and ankle three-joint combined motion device of the present invention in a footrest extension state;

[0019] Figure 3 It is a structural schematic diagram of a hip, knee and ankle three-joint combined motion device of the present invention in a retracted footrest state;

[0020] Figure 4 It is a top view of a resistance adjustment mechanism of a hip, knee and ankle three-joint combined motion device of the present invention;

[0021] Figure 5 It is a front cross-sectional view of a resistance adjustment mechanism of a hip, knee and ankle three-joint combined motion device of the present invention;

[0022] The reference numerals in the figure are as follows: carrier plate 1, shell 2, push rod 3, foot rest 4, leg board 5, foot board 6, protective cover 7, elastic rope 8, triangular bracket 9, cross bar 10, pulley 11, limit block 12, fixed shaft 13, cross plate 14, rotating shaft 15, control knob 16, resistance sheet 17, disc 18, fixing belt 19. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only for illustrating the present invention, not for limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, a hip-knee-ankle three-joint joint motion device comprises a carrier plate 1, a telescopic mechanism is mounted on the carrier plate 1, the telescopic mechanism comprises a shell 2 and a push rod 3, the shell 2 is fixedly connected to the carrier plate 1, a driving motor is mounted in the shell 2, and a foot rest 4 is arranged on the push rod 3, as shown in FIG. Figure 2 and Figure 3 As shown, the footrest 4 includes a leg plate 5 and a foot plate 6 rotatably connected at the lower end, a protective cover 7 is connected to the leg plate 5 and the foot plate 6, an elastic rope 8 is fixedly connected between the leg plate 5 and the foot plate 6, a fixing belt 19 is installed at the upper end of the leg plate 5, and a Velcro is laid on the fixing belt 19, and two parallel triangular brackets 9 are fixedly connected to the rear side of the leg plate 5, and a cross bar 10 is fixedly connected between the two triangular brackets 9. The number of cross bars 10 is two, and the cross bars 10 are respectively located at the two ends of the bottom of the triangular bracket 9, and pulleys 11 are rotatably connected to the two cross bars 10, and the pulley 11 is slidably connected to the push rod 3. A resistance adjustment mechanism is installed in the middle of the triangular bracket 9, as shown in FIG. Figure 4 and Figure 5 As shown, the resistance adjustment mechanism includes a horizontal plate 14 arranged between the two triangular brackets 9, and the horizontal plates 14 are all located in the middle part of the lower side of the triangular bracket 9. A rotating shaft 15 rotatably connected to the triangular bracket 9 is installed between the two horizontal plates 14. The right end of the rotating shaft 15 is connected to a control knob 16 that penetrates the triangular bracket 9, and the surface of the control knob 16 is marked with scale marking lines. A right-handed thread is provided from the left end to the middle of the rotating shaft 15, and a left-handed thread is provided from the right end to the middle of the rotating shaft 15. Both ends of the rotating shaft 15 are threadedly connected with resistance sheets 17, and the lower part of the resistance sheet 17 is arranged in an arc shape to prevent the footrest 4 from slipping. Removable friction pads are installed on the inner side of the resistance sheet 17, and a limiting block 12 is installed at the front end of the push rod 3. The lower part of the carrier plate 1 is rotatably connected with a fixed shaft 13, and a locking bolt is threadedly connected to the fixed shaft 13. A disc 18 is also provided on the fixed shaft 13. The disc 18 is located at the rear side of the carrier plate 1, and angle scale lines are marked on the disc 18. The telescopic mechanism is also equipped with a remote control.

[0025] When the patient needs to perform rehabilitation training, the device is first installed on a bed or a flat plate through the fixed shaft 13, and then the patient is allowed to lie flat and the patient's feet are placed in the footrest 4, which is then fixed with the fixing belt 19. During the initial training process, the angle scale line of the disk 18 is used as a standard, the carrier plate 1 and the adjustment mechanism are rotated to adjust the push rod 3 to a suitable angle, and then the locking bolt is tightened to perform passive training. The footrest 4 is first fixed with the resistance adjustment mechanism, and the control knob 16 and the rotating shaft 15 are rotated. The rotating shaft 15 drives the resistance plates 17 on the left and right sides to move toward the middle to resist and fix the push rod 3. Then the push rod 3 is controlled to be retracted and retracted through the remote control. The extension and retraction of the push rod 3 drives the footrest 4 to move, thereby activating the knee joint and hip joint through flexion and extension. During the training process, the patient is allowed to press the foot plate 6 with the sole of the foot, and the foot plate 6 is rotated downward to stretch the pressure rope. The greater the downward deflection angle, the greater the force the patient needs to apply. During the training process, the patient can gradually increase the downward pressure.

[0026] After training for a period of time, active rehabilitation training is performed, the drive motor is turned off, the push rod 3 is in an extended state, and then the control knob 16 is reversed to lock the shoe support, allowing the patient to use his own force to move the shoe support along the push rod 3. During the training process, the movement resistance can be adjusted according to the patient's condition.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hip-knee-ankle triple joint motion device, characterized in that: The invention comprises a carrier plate (1), wherein the carrier plate (1) is provided with a telescopic mechanism, wherein the telescopic mechanism comprises a shell (2) and a push rod (3), wherein the shell (2) is fixedly connected to the carrier plate (1), wherein a driving motor is provided in the shell (2), wherein a foot support (4) is provided on the push rod (3), wherein the foot support (4) comprises a leg plate (5) and a foot plate (6) which are rotatably connected, wherein the leg plate (5) and the foot plate (6) are connected with a protective cover (7), wherein an elastic rope (8) is provided between the leg plate (5) and the foot plate (6), wherein two parallel triangular brackets (9) are provided on the rear side of the leg plate (5), wherein the two ... A cross bar (10) is arranged between the three triangular brackets (9), the number of the cross bars (10) is two, the cross bars (10) are respectively located at the two ends of the bottom of the triangular bracket (9), the cross bars (10) are rotatably connected with pulleys (11), the pulleys (11) are slidably connected with the push rods (3), a resistance adjustment mechanism is arranged in the middle of the triangular bracket (9), a limit block (12) is arranged at the front end of the push rod (3), a fixed shaft (13) is rotatably connected to the lower part of the carrier plate (1), a locking bolt is threadedly connected to the fixed shaft (13), and the telescopic mechanism is also equipped with a remote control.

2. A hip-knee-ankle triple joint motion device according to claim 1, characterized in that: The resistance adjustment mechanism comprises a horizontal plate (14) arranged between two triangular brackets (9); a rotating shaft (15) rotatably connected to the triangular bracket (9) is arranged between the two horizontal plates (14); the rotating shaft (15) is connected to a control knob (16) penetrating the triangular bracket (9); a right-handed thread is arranged from one end to the middle of the rotating shaft (15); a left-handed thread is arranged from the other end to the middle of the rotating shaft (15); both ends of the rotating shaft (15) are threadedly connected to resistance sheets (17); and the lower part of the resistance sheet is arranged in an arc shape.

3. A hip-knee-ankle triple joint motion device according to claim 2, characterized in that: A detachable friction pad is provided on the inner side of the resistance sheet (17).

4. The hip-knee-ankle triple joint motion device according to claim 2, characterized in that: The surface of the control knob (16) is marked with scale marking lines.

5. The hip-knee-ankle triple joint motion device according to claim 1, characterized in that: A circular disk (18) is arranged on the fixed shaft (13), and angle scale lines are marked on the circular disk (18).

6. The hip-knee-ankle triple joint motion device according to claim 1, characterized in that: A fixing belt (19) is provided at the upper end of the leg plate (5), and a Velcro is provided on the fixing belt (19).

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