CN114515416B - An ankle rehabilitation training device - Google Patents

Abstract

The invention relates to the technical field of rehabilitation instruments, in particular to an ankle rehabilitation training device, which adopts the technical scheme that: the pedal is rotatably connected with the support frame, a piston and a piston rod are matched in the connecting cylinder, one end of the piston rod is connected with the piston, the other end of the piston rod penetrates through the upper end of the connecting cylinder and is hinged with the pedal, and the lower end of the connecting cylinder is hinged with the support frame so as to drive the pedal to rotate around a preset axis by the expansion of the piston rod; the upper end of the connecting cylinder is provided with an air inlet hole and an air outlet hole, the air inlet hole is connected with the air outlet end of the inflating pump, and the air outlet hole is connected with a pressure regulating valve; and a compression spring is also arranged in the connecting cylinder and is positioned between the piston and the lower end of the connecting cylinder. The ankle rehabilitation training device can perform passive and active rehabilitation training on ankle joints of patients, can perform corresponding adjustment according to different rehabilitation periods and ages of the patients, and is good in applicability, so that the ankle rehabilitation training cost is reduced.

Description

An ankle rehabilitation training device

technical field

The invention relates to the technical field of rehabilitation equipment, in particular to an ankle rehabilitation training device.

Background technique

The ankle joint is the load-bearing joint of the human body. In daily life, the ankle joint is extremely vulnerable to injury. After ankle surgery, the patient's ankle needs to be rehabilitated. If the ankle is not properly rehabilitated, it will lead to instability of the ankle joint, muscle weakness, and difficulty in walking. During rehabilitation training, if the load force is too small, the efficiency of rehabilitation will be reduced, and if the load force is too large, it will cause secondary damage to the patient's ankle.

Most of the existing ankle rehabilitation training devices are active type, which drives the foot pedal to rotate through the active movement of the sole of the patient's foot, so as to realize the multi-directional activities of the ankle joint. However, the active rehabilitation training device cannot realize the passive movement of the patient's sole, and cannot train the ankle joint that has just been operated on or has been boned. It needs to be manually kneaded to drive the patient's sole to move. Active and passive rehabilitation training can be realized by using two sets of devices or manual rehabilitation devices. It cannot be adjusted according to the different rehabilitation periods and ages of patients. The applicability is poor and the cost of rehabilitation training is high.

Contents of the invention

Aiming at the problem that the above-mentioned existing ankle rehabilitation devices cannot realize the patient's passive and active technical problems; the present invention provides a kind of ankle rehabilitation training device, which can perform passive and active rehabilitation training on the patient's ankle joint, and can be used according to the different rehabilitation periods of the patient, the patient's Different ages can be adjusted accordingly, and the applicability is good, thereby reducing the cost of ankle rehabilitation training.

The present invention realizes through following technical scheme:

The present invention provides an ankle rehabilitation training device, which includes a foot pedal and a support frame, the foot pedal is rotatably connected with the support frame, and also includes a connecting cylinder and an air pump; a piston and a pump are fitted in the connecting cylinder. A piston rod, one end of the piston rod is connected to the piston, the other end of the piston rod passes through the upper end of the connecting cylinder and is hinged with the pedal, and the lower end of the connecting cylinder is hinged with the support frame to The pedal is driven to rotate around a preset axis through the expansion and contraction of the piston rod; the upper end of the connecting cylinder is provided with an air inlet hole and an air outlet hole, and the air inlet hole is connected with the outlet end of the air pump. The air outlet is connected with a pressure regulating valve; a compression spring is also arranged in the connecting cylinder, and the compression spring is located between the piston and the lower end of the connecting cylinder.

When the ankle rehabilitation training device provided by the present invention is in use, the sole of the patient's foot is fixed on the pedal, and when the air pressure in the connecting cylinder is low or zero, the patient actively presses down on the pedal to compress the compression spring , with the withdrawal of the patient's foot force, the compression spring resets and drives the pedal to reset, thereby realizing an active rehabilitation training of the patient's ankle. After the air pump inputs positive pressure gas to the connecting cylinder, the pressure of the gas drives the piston to move and then compress the spring, and the pedal is pulled by the piston rod to rotate downwards. At this time, the pressure in the connecting cylinder is adjusted by the pressure regulating valve, so The air pressure acting on the piston is less than the pressure of the compression spring acting on the piston, and the foot pedal can be driven to return through the compression spring, so as to realize a passive rehabilitation training of the patient's ankle.

Because the air pressure in the connecting cylinder can be adjusted, it can not only realize the passive training of the patient's ankle, but also can adjust the resistance of the pedal's downward rotation from zero to the maximum value of the compression spring during the patient's active training. Therefore, The ankle rehabilitation training device provided by the present invention can carry out passive and active rehabilitation training on the patient's ankle joint, and can be adjusted accordingly according to the different rehabilitation periods and ages of the patients. It has good applicability and does not need to use two sets of devices and The active and passive rehabilitation training of patients can be realized by artificial cooperation with the rehabilitation device, thereby reducing the cost of ankle rehabilitation training.

In an optional embodiment, a plurality of massage protrusions are arranged at intervals on the cross-section of the footrest to massage the soles of the patient's feet and promote the blood circulation of the patient's feet.

In an optional embodiment, the footrest is provided with a plurality of fixing belts at intervals, and the fixing belts are Velcro fixing belts, so as to fix the patient's sole on the footrest.

In an optional embodiment, the pressure regulating valve is connected to the connecting cylinder through a flexible pipe, so that the patient can switch between passive rehabilitation training and active rehabilitation training, and adjust the resistance of passive rehabilitation training.

In an optional embodiment, the pressure regulating valve is a threaded needle valve to ensure continuous adjustment of resistance during active rehabilitation training.

In an optional embodiment, the flexible pipeline is further connected with a switch valve, and the switch valve is connected in parallel with the pressure regulating valve, so as to quickly switch between the active rehabilitation training mode and the passive rehabilitation training mode by switching the switch valve.

In an optional embodiment, the upper end of the piston rod is hinged to the middle part of the pedal, and the connection between the piston rod and the pedal and the connection between the pedal and the support frame The distance is smaller than the length of the connecting cylinder, so as to reduce the volume of the rehabilitation training device.

In an optional embodiment, it also includes a base, the upper end of the base is provided with an arc-shaped slide groove, and the lower end of the support frame is connected with an arc-shaped slide rail, and the slide rail can rotate along its own axis. It is clamped in the chute; the base is provided with lugs, and the lugs are screwed with an adjustment screw, and one end of the adjustment screw is connected with a friction wheel, and the side wall of the friction wheel is in contact with the slide rail. The inner side, and the friction wheel can rotate around its own axis; the base is also provided with an auxiliary motor, the end of the output shaft of the auxiliary motor is provided with a driving friction plate, the output shaft of the auxiliary motor, the axis of the friction wheel, The length direction of the adjustment screw is parallel to the axis of the slide rail, so that the rotation of the adjustment screw drives the friction wheel to move between the driving friction plate and the lug.

Among them, when the friction wheel is driven by the rotation of the adjusting screw against the side wall of the lug, the friction between the friction wheel and the lug will provide resistance to the rotation of the slide rail, thereby providing damping for the patient's foot when the sole of the foot tilts or rolls over, and realizes ankle side. Active rehabilitation training towards activities; when the friction wheel is driven by the rotation of the adjusting screw against the driving friction plate at the end of the output shaft of the auxiliary motor, the linkage between the output shaft of the auxiliary motor and the slide rail is realized through the friction between the friction wheel and the driving plate. Therefore, the auxiliary motor drives the slide rail to rotate, so as to drive the patient's foot to tilt or roll over, so as to realize the passive rehabilitation training of the lateral movement of the ankle. Thus, passive and active lateral mobility rehabilitation of the patient's ankle joint is possible.

In an optional embodiment, a brake friction plate is provided between the friction wheel and the lug, and the brake friction plate is a ring piece sleeved on the outside of the adjusting screw, and the brake friction plate A pressure regulating spring is provided between the moving friction plate and the lug, so that the brake friction plate is in contact with the end of the friction wheel when the adjusting screw drives the friction wheel to move to the lug, and the gap between the brake friction plate and the friction wheel The positive pressure is adjustable, so that the resistance to the rotation of the slide rail can be adjusted by adjusting the screw, and then the resistance during the active rehabilitation of the lateral movement of the ankle can be adjusted. It can be adjusted according to different rehabilitation periods and ages of patients, and has good applicability. .

In an optional embodiment, the pressure regulating spring is a wave spring washer sleeved on the outside of the adjusting screw, so as to obtain sufficient positive pressure acting on the friction wheel and at the same time shorten the friction between the brake friction plate and the friction wheel. The distance between lugs.

Beneficial effects of the present invention:

In the ankle rehabilitation training device provided by the present invention, the pedal is rotatably connected to the support frame, one end of the piston rod in the connecting cylinder is connected to the piston, the other end of the piston rod is hinged to the foot pedal, the lower end of the connecting cylinder is hinged to the support frame, and the connecting cylinder enters The air hole is connected to the air outlet of the air pump, and the air outlet of the connecting cylinder is connected with a pressure regulating valve. There is also a compression spring in the connecting cylinder. The compression spring is located between the piston and the lower end of the connecting cylinder. The air pressure in the connecting cylinder is low or zero. In some cases, the patient actively presses down the foot pedal to compress the compression spring, and then the compression spring drives the foot pedal to reset, so as to realize an active rehabilitation training, and after the air pump inputs positive pressure gas to the connecting cylinder, the piston The rod pulls the foot pedal to turn downward, and the foot pedal is driven back through the compressed spring to achieve a passive rehabilitation training of the patient's ankle, and the air pressure in the connecting cylinder can be adjusted, which can not only realize the passive training of the patient's ankle, but also achieve the patient's ankle rehabilitation. During active training, the resistance of the pedal down rotation can be adjusted from zero to the maximum value of the compression spring. It can be adjusted according to the different rehabilitation periods and ages of the patients. It has good applicability and does not need to be used. The active and passive rehabilitation training of the patient is realized by two sets of devices and manual cooperation with the rehabilitation device, thereby reducing the cost of ankle rehabilitation training.

Description of drawings

The drawings described here are used to provide a further understanding of the embodiments of the present invention, constitute a part of the application, and do not limit the embodiments of the present invention. In the attached picture:

Fig. 1 is the schematic diagram of the main structure of the ankle rehabilitation training device of the embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a connecting cylinder according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of gas path connection in an embodiment of the present invention.

Marks and corresponding parts names in the attached drawings:

1-pedal, 2-support frame, 3-connecting cylinder, 4-air pump, 5-piston, 6-piston rod, 7-intake hole, 8-outlet hole, 9-pressure regulating valve, 10-compression Spring, 11-massage bump, 12-fixing belt, 13-switch valve, 14-base, 15-slide rail, 16- lug, 17-adjusting screw, 18-friction wheel, 19-auxiliary motor, 20-drive Friction plate, 21-brake friction plate, 22-pressure regulating spring.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the embodiments of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner ", "Outside", "Front", "Back", "Top", "Bottom" and other indications are based on the orientation or positional relationship shown in the attached drawings, or the usual placement of the application product when it is used The orientation or positional relationship, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific configuration and operation, and therefore should not be construed as limiting the application.

In the description of the present invention, unless otherwise clearly stipulated and limited, the terms "setting", "opening", "installing", "connecting" and "connecting" should be understood in a broad sense, for example, it can be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Example 1

1 and 2, the present embodiment provides an ankle rehabilitation training device, including a pedal 1 and a support frame 2, the pedal 1 is rotatably connected to the support frame 2, and also includes a connecting cylinder 3 and Air pump 4; piston 5 and piston rod 6 are adapted in the connecting cylinder 3, one end of the piston rod 6 is connected to the piston 5, the other end of the piston rod 6 passes through the upper end of the connecting cylinder 3 and Hinged with the pedal 1, the lower end of the connecting cylinder 3 is hinged with the support frame 2, so as to drive the pedal 1 to rotate around a preset axis through the expansion and contraction of the piston rod 6; the connecting cylinder The upper end of 3 is provided with an air inlet 7 and an air outlet 8, the air inlet 7 is connected to the air outlet of the air pump 4, and the air outlet 8 is connected with a pressure regulating valve 9; the connecting cylinder 3 is also provided with A compression spring 10 is located between the piston 5 and the lower end of the connecting cylinder 3 .

Specifically, a plurality of massage bumps 11 are arranged at intervals on the upper section of the foot pedal 1, and the positions of the massage bumps 11 are usually arranged according to the positions of acupuncture points on the soles of the feet, so as to massage the soles of the patient's feet and promote blood circulation in the feet of the patient. Circulation, and play a certain anti-skid effect.

In order to fix the patient's sole on the pedal 1, the pedal 1 is provided with a plurality of fixing straps 12 at intervals, and the fixing straps 12 are Velcro fixing straps. Of course, it can also be fixed by other similar fixing belts, such as the fixing belt connected by the eight-shaped buckle, and the fixed belt connected by the buckle.

Wherein, the pressure regulating valve 9 is connected with the connecting cylinder 3 through a flexible pipe, so that the patient can switch between passive rehabilitation training and active rehabilitation training, and adjust the resistance of passive rehabilitation training.

In order to realize continuous adjustment of resistance during active rehabilitation training, the pressure regulating valve 9 is a thread-regulated needle valve.

Referring to FIG. 3 , the flexible pipeline is also connected with a switching valve 13 , which is connected in parallel with the pressure regulating valve 9 , so that the active rehabilitation training and passive rehabilitation training modes can be quickly switched by switching the switching valve 13 .

Preferably, the upper end of the piston rod 6 is hinged to the middle part of the pedal 1, and the connection between the piston rod 6 and the pedal 1 and the connection between the pedal 1 and the support frame 2 The distance is smaller than the length of the connecting cylinder 3 so as to reduce the volume of the rehabilitation training device.

When the ankle rehabilitation training device provided in this embodiment is in use, the sole of the patient's foot is fixed on the pedal 1, and when the air pressure in the connecting cylinder 3 is low or zero, the patient actively presses the pedal 1, By compressing the compression spring 10, as the force applied by the sole of the patient's foot is withdrawn, the compression spring 10 resets and drives the reset of the pedal 1, thereby realizing an active rehabilitation training of the patient's ankle. After the air pump 4 inputs positive pressure gas to the connecting cylinder 3, the pressure of the gas drives the piston 5 to move and then compresses the spring 10, and the pedal 1 is pulled by the piston rod 6 to rotate downward. The pressure in the connection cylinder 3 makes the air pressure acting on the piston 5 smaller than the pressure of the compression spring 10 acting on the piston 5, and the compression spring 10 can drive the foot pedal 1 to reset, so as to realize a passive rehabilitation training of the patient's ankle.

Due to the adjustable air pressure in the connecting cylinder 3, not only can the passive training of the patient's ankle be realized, but also the resistance of the pedal 1 to turn down can be adjusted from zero to the maximum value of the compression spring 10 when the patient is actively training. .

To sum up, the ankle rehabilitation training device provided in this embodiment can perform passive and active rehabilitation training on the patient's ankle joint, and can be adjusted according to the different rehabilitation periods and ages of the patients. It has good applicability and does not need to use The active and passive rehabilitation training of the patient is realized by two sets of devices and manual cooperation with the rehabilitation device, thereby reducing the cost of ankle rehabilitation training.

Example 2

With reference to Fig. 1, the present embodiment provides a kind of ankle rehabilitation training device, based on the structure and principle described in embodiment 1, also includes base 14, and the upper end of described base 14 is provided with arc-shaped chute, and described support frame 2 The lower end is connected with an arc-shaped slide rail 15, and the slide rail 15 can rotate along its own axis and is clamped in the chute; the base 14 is provided with lugs 16, and the lugs 16 are screwed with An adjustment screw 17, one end of the adjustment screw 17 is connected with a friction wheel 18, the side wall of the friction wheel 18 is in contact with the inside of the slide rail 15, and the friction wheel 18 can rotate around its own axis; on the base 14 Also be provided with auxiliary motor 19, described auxiliary motor 19 output shaft ends are provided with driving friction plate 20, the length direction of described auxiliary motor 19 output shaft, described friction wheel 18 axes, described adjusting screw rod 17 is all in line with described The axes of the sliding rails 15 are parallel to drive the friction wheel 18 to move between the driving friction plate 20 and the lug 16 through the rotation of the adjusting screw 17 .

When the friction wheel 18 is driven by the rotation of the adjustment screw 17 against the side wall of the lug 16, the friction between the friction wheel 18 and the lug 16 provides resistance to the rotation of the slide rail 15, thereby providing damping when the sole of the patient's foot tilts or rolls over , to realize the active rehabilitation training of the lateral movement of the ankle; when the friction wheel 18 is driven by the rotation of the adjustment screw 17 against the drive friction plate 20 at the end of the output shaft of the auxiliary motor 19, the friction between the friction wheel 18 and the drive plate is used to achieve auxiliary The linkage between the output shaft of the motor 19 and the slide rail 15 drives the slide rail 15 to rotate by the auxiliary motor 19, so as to drive the patient's sole to tilt or roll over, so as to realize the passive rehabilitation training of the lateral movement of the ankle. Thus, passive and active lateral mobility rehabilitation of the patient's ankle joint is possible.

Specifically, a brake friction plate 21 is provided between the friction wheel 18 and the lug 16, and the brake friction plate 21 is a ring piece sleeved on the outside of the adjustment screw 17, and the brake friction plate 21 is A pressure regulating spring 22 is provided between the friction plate 21 and the lug 16, so that when the adjustment screw 17 drives the friction wheel 18 to move to the lug 16, the brake friction plate 21 is in contact with the end of the friction wheel 18, and the brake The positive pressure between the friction plate 21 and the friction wheel 18 is adjustable, so that the resistance to the rotation of the slide rail 15 can be adjusted through the adjustment screw 17, and then the resistance during the active rehabilitation of the lateral movement of the ankle can be adjusted. It can be adjusted accordingly for different ages, and the applicability is good.

Preferably, the pressure regulating spring 22 is a wave spring washer sleeved on the outside of the adjusting screw rod 17, so as to obtain sufficient positive pressure acting on the friction wheel 18 and shorten the brake friction plate 21 and the lug 16 distances between.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. Protection scope, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.

Claims (9)

1. An ankle rehabilitation training device comprises a pedal (1) and a support frame (2), wherein the pedal (1) is rotatably connected with the support frame (2), and the ankle rehabilitation training device is characterized by further comprising a connecting cylinder (3) and an inflating pump (4);

a piston (5) and a piston rod (6) are matched in the connecting cylinder (3), one end of the piston rod (6) is connected with the piston (5), the other end of the piston rod (6) penetrates through the upper end of the connecting cylinder (3) and is hinged with the pedal plate (1), and the lower end of the connecting cylinder (3) is hinged with the support frame (2) so as to drive the pedal plate (1) to rotate around a preset axis through the extension and retraction of the piston rod (6);

an air inlet hole (7) and an air outlet hole (8) are formed in the upper end of the connecting cylinder (3), the air inlet hole (7) is connected with the air outlet end of the inflating pump (4), and the air outlet hole (8) is connected with a pressure regulating valve (9);

a compression spring (10) is further arranged in the connecting cylinder (3), and the compression spring (10) is positioned between the piston (5) and the lower end of the connecting cylinder (3);

the support frame is characterized by further comprising a base (14), wherein an arc-shaped sliding groove is formed in the upper end of the base (14), an arc-shaped sliding rail (15) is connected to the lower end of the support frame (2), and the sliding rail (15) can be clamped in the sliding groove in a rotating mode along the axis of the sliding rail;

the base (14) is provided with a support lug (16), the support lug (16) is in threaded connection with an adjusting screw rod (17), one end of the adjusting screw rod (17) is connected with a friction wheel (18), the side wall of the friction wheel (18) is abutted against the inner side of the sliding rail (15), and the friction wheel (18) can rotate around the axis of the friction wheel;

the base (14) is further provided with an auxiliary motor (19), the end portion of an output shaft of the auxiliary motor (19) is provided with a driving friction plate (20), the output shaft of the auxiliary motor (19), the axis of the friction wheel (18) and the length direction of the adjusting screw rod (17) are parallel to the axis of the sliding rail (15), and the friction wheel (18) is driven to move between the driving friction plate (20) and the support lug (16) through rotation of the adjusting screw rod (17).

2. The ankle rehabilitation training device according to claim 1, wherein a plurality of massage protrusions (11) are provided on the upper section of the foot pedal (1) at intervals.

3. The ankle rehabilitation training device according to claim 2, wherein the pedal plate (1) is provided with a plurality of fixing bands (12) at intervals, and the fixing bands (12) are hook and loop fastener fixing bands.

4. Ankle rehabilitation training device according to claim 1, characterized in that said pressure regulating valve (9) is connected to said connecting cylinder (3) by a flexible duct.

5. The ankle rehabilitation training device according to claim 1 or 4, characterized in that said pressure regulating valve (9) is a needle valve which is adjusted by a screw thread.

6. The ankle rehabilitation training device according to claim 4, characterized in that a switch valve (13) is further connected to the flexible conduit, and the switch valve (13) is connected in parallel with the pressure regulating valve (9).

7. The ankle rehabilitation training device according to claim 1, wherein the upper end of the piston rod (6) is hinged to the middle of the pedal (1), and the distance from the joint of the piston rod (6) and the pedal (1) to the joint of the pedal (1) and the support frame (2) is less than the length of the connecting cylinder (3).

8. The ankle rehabilitation training device according to claim 1, wherein a brake friction plate (21) is arranged between the friction wheel (18) and the support lug (16), the brake friction plate (21) is a ring plate sleeved outside the adjusting screw rod (17), and a pressure regulating spring (22) is arranged between the brake friction plate (21) and the support lug (16).

9. The ankle rehabilitation training device according to claim 8, wherein the pressure regulating spring (22) is a wave spring washer sleeved on the adjusting screw (17).

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