CN111643810A - Lower limb exercise rehabilitation device - Google Patents

Abstract

The invention relates to the field of rehabilitation medical equipment, and discloses a lower limb exercise rehabilitation device, comprising a thigh front support plate, a thigh rear support plate, a calf front support plate and a calf rear support plate. The fixing mechanism is connected, the front support plate of the calf and the rear support plate of the calf are connected by the second fixing mechanism, the front support plate of the thigh and the rear support plate of the calf are connected by the connecting mechanism in rotation, and an elastic adjustment is arranged between the rear support plate of the thigh and the front support plate of the calf A thigh electrode part is arranged in the rear support plate of the thigh, and a calf electrode part is arranged in the rear support plate of the lower leg. The present invention has the following advantages and effects: the scheme utilizes a new structure to achieve the purpose of improving the rehabilitation effect.

Description

Lower limb exercise rehabilitation device

technical field

The invention relates to a medical rehabilitation apparatus, more particularly, to a lower limb movement function rehabilitation device.

Background technique

Stroke is a group of diseases with the main clinical manifestations of acute cerebral ischemia or hemorrhage leading to neurological damage symptoms, also known as cerebral apoplexy or cerebrovascular accident. , its onset has a very high fatality rate and disability rate in my country, and most of the survivors have various functional impairments such as motor impairment, cognitive impairment, speech and swallowing disorder. Among them, hyperextension of the knee joint is a common complication in the recovery of lower limb motor dysfunction in stroke patients. During the stance phase, the knee joint is hyperextended (the angle of the knee joint is greater than 5°), the center of gravity of the body is shifted back, the affected hip joint is overflexed, and the body tends to lean back. Long-term knee hyperextension can lead to structural damage to the knee joint, which seriously affects the recovery of lower extremity motor function. Therefore, early prevention and correction of knee hyperextension patients has important clinical significance.

At present, the Chinese patent with the publication number CN203841871U discloses a knee joint hyperextension corrector, which relates to the field of medical devices and can correct the knee joint hyperextension and is comfortable to wear. The knee joint hyperextension corrector includes a thigh fixing sleeve, an elastic knee joint fixing sleeve, a calf fixing sleeve and two springs; the thigh fixing sleeve is composed of a thigh fixing plate and a first elastic cloth, and two ends of the thigh fixing plate are provided with multiple The two ends of the first elastic cloth are provided with through holes; the knee joint fixing sleeve is connected to the lower end of the thigh fixing sleeve, and the knee joint fixing sleeve has a hollow structure corresponding to the body socket; the calf fixing sleeve is connected to the lower end of the knee joint fixing sleeve At the lower end, the calf fixing sleeve is composed of a calf fixing plate and a second elastic cloth. The two ends of the calf fixing plate are provided with a plurality of fixing parts, and the two ends of the second elastic cloth are provided with through holes; the two springs are respectively located in the knee joint fixing sleeve. On both sides of the two springs, one end of the two springs is hung on the protrusion of the thigh fixing sleeve, and the other ends of the two springs are hung on the fixing part of the calf fixing sleeve.

This kind of knee hyperextension corrector has a simple structure. Through the elastic action of two springs, tension is applied to the thigh fixing sleeve and the calf fixing sleeve. However, when the patient is walking, the muscles on the front side of the thigh and the front side of the calf are always tense. In this state, the thigh and the calf are only forced to be pulled toward each other through the elastic force of the spring to avoid the angle between the back of the thigh and the back of the calf being greater than 180°, and the recovery effect for the patient is poor.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the present invention provides a lower limb exercise rehabilitation device, which achieves the purpose of improving the rehabilitation effect by providing a thigh electrode part and a calf electrode part.

In order to achieve the above purpose, the present invention provides the following technical solutions: a lower limb exercise rehabilitation device, comprising a thigh front support plate, a thigh rear support plate, a calf front support plate and a calf rear support plate, the thigh front support plate and the thigh rear support plate. The support plate is connected by a first fixing mechanism, the front support plate of the calf and the rear support plate of the calf are connected by a second fixing mechanism, the front support plate of the thigh and the rear support plate of the calf are connected by rotation through a connecting mechanism, and the rear support plate of the thigh is connected by a connecting mechanism. An elastic adjustment mechanism is arranged between the plate and the calf rear support plate, a thigh electrode part is arranged in the thigh rear support plate, and a calf electrode part is arranged in the calf rear support plate.

By adopting the above technical solution, the thigh electrode part is in contact with the back side of the thigh, and the calf electrode part is in contact with the back side of the calf. During the walking process of the patient, the elastic force of the elastic adjustment mechanism is used to avoid the angle between the thigh and the calf. If the angle is too large, when the angle between the thigh and the calf is close to 180°, the elastic adjustment mechanism will trigger the electrode part of the thigh and the calf to tighten the muscles on the back of the thigh and the back of the calf, so that the calf can bend actively and quickly. Therefore, the protective effect on the ligament can be effectively improved; and the elastic force can be adjusted by the elastic adjustment mechanism, which can adapt to people with different degrees of rehabilitation, and greatly improves the practicability.

The present invention is further provided as follows: the connecting mechanism includes a connecting frame, a turntable, a support rod and a detachable assembly, the connecting frame is connected with the rear support plate of the calf, the turntable is rotatably connected to the connecting frame, and the The support rod is connected with the front support plate of the thigh, and the support rod and the turntable are connected through the detachable assembly.

By adopting the above technical solution, the calf is inserted between the front support plate of the calf and the rear support plate of the calf, the thigh is inserted between the front support plate of the thigh and the rear support plate of the thigh, and the support rod and the turntable are detachably connected. In the process of walking, the turntable and the knee can rotate synchronously; separating the strut from the turntable can facilitate the removal of the thigh from between the front thigh support plate and the thigh rear support plate, thereby improving the convenience of wearing.

The present invention is further provided as follows: the detachable assembly includes a positioning pin, a first elastic member, a connecting rod and a pull rod, the turntable is provided with a positioning hole, a sliding hole and a pull hole, and the positioning hole is connected to the support rod. The sliding hole is opened on the inner wall of the positioning hole, the positioning pin is slidably connected in the sliding hole, the pulling hole is communicated with the sliding hole, the pulling rod is slidably connected in the pulling hole, and the connecting rod is slidably connected to the sliding hole. The two ends are respectively hinged with the pull rod and the positioning pin, the two ends of the first elastic member are connected with the inner wall of the sliding hole and the positioning pin, the side wall of the support rod is provided with a concave hole, and the positioning pin is matched with the concave hole .

By adopting the above technical solution, the calf is inserted between the front support plate of the calf and the rear support plate of the calf, and then fixed by the second fixing mechanism, and the thigh is inserted between the front support plate of the thigh and the rear support plate of the thigh, and then It is fixed by the first fixing mechanism, the support rod is inserted into the positioning hole, and the positioning pin is inserted into the concave hole through the elastic force of the first elastic member, so as to realize the fixed connection between the support rod and the turntable. During the process, the thigh and the calf rotate relative to each other, and the support rod rotates synchronously along the axis of the turntable, and through the blocking effect of the turntable, the knee is not easily deflected from side to side, which further improves the rehabilitation effect; by pulling the rod, the connecting rod can be moved. When the positioning pin is released from the concave hole, the support rod can be pulled out from the positioning hole, and the operation is simple.

The present invention is further provided as follows: the first fixing mechanism includes a first pulling strap, a first bracket, a first pressing plate, a first pressing tooth and a second elastic member, and the first bracket is connected with the front support plate of the thigh, so the The first pressing plate is hinged on the first bracket and forms a first clamping area before the thigh front support plate, the first pressing tooth is connected with the first pressing plate, and the second elastic member is connected with the first pressing plate and the first bracket. connected, and one end of the first drawstring is connected with the rear support plate of the thigh.

By adopting the above technical solution, the thigh is in contact with the front support plate of the thigh, and then the first pull strap is pulled so that the first pull strap penetrates into the first clamping area, the first pressing plate is released, and the first pressing teeth are embedded in the In the first pull strap, the first pressing teeth are kept in an engaged state by the elastic force of the second elastic member, so as to adapt to different sizes of thighs, and make the thighs wrap more strongly and improve the protection effect.

The present invention is further provided that: the second fixing mechanism includes a second pull strap, a second bracket, a second pressing plate, a second pressing tooth and a third elastic member, the second bracket is connected to the front support plate of the calf, so The second pressing plate is hinged on the second bracket and forms a second clamping area in front of the front support plate of the calf, the second pressing tooth is connected with the second pressing plate, and the third elastic member is connected with the second pressing plate and the second bracket. connected, and one end of the second drawstring is connected with the rear support plate of the calf.

By adopting the above technical solution, the calf is in contact with the front support plate of the calf, and then the second pull strap is pulled so that the second pull strap penetrates into the second clamping area, the second pressing plate is released, and the second pressing teeth are embedded in the In the second pull strap, the second pressing teeth are kept in an engaged state by the elastic force of the third elastic member, so as to adapt to the thighs of different sizes, and make the wrapping feeling of the calf stronger and improve the protection effect.

The present invention further provides that: a starter assembly is provided on the rear support plate of the thigh, the thigh electrode part is electrically connected with the starter component, and the lower leg electrode part is electrically connected with the starter component.

By adopting the above technical solution, the activation component is activated, the thigh electrode part and the calf electrode part can be activated synchronously, so that the calf can be bent.

The present invention is further provided as follows: the starting assembly includes a placing box, a power source, a lead wire and a trigger switch, the placing box is connected to the rear support plate of the thigh, the power source is placed in the placing box, and the lead wire is connected to the power source, the thigh electrode and the thigh electrode. The trigger switch is arranged on the wire.

By adopting the above technical solution, the trigger switch is moved, the lead is closed, and the power supply is energized to the thigh electrode part and the calf electrode part, so that the muscles on the back of the thigh and the back of the calf are tightened; after the trigger switch is reset, the lead is disconnected and the muscles relax.

The present invention is further provided as follows: the elastic adjustment mechanism includes a clamping frame, a sliding plate, a chute, an interference component, a connecting rod, a fourth elastic member, an adjustment component and a fixed rod, and the two ends of the fixed rod are respectively connected to The clamping frame and the trigger switch are connected. The sliding slot is opened on the side wall of the clamping frame. The shifting plate is connected, and the other end is connected to the connecting block on the rear support plate of the calf after passing through the clamping frame, and the two ends of the fourth elastic member are respectively connected with the sliding plate and the clamping frame.

By adopting the above technical solution, in the process of straightening the calf, the sliding plate moves along the length direction of the chute, and at the same time, the fourth elastic member compresses and generates elastic force and exerts a bending force on the calf. When the angle between them is close to 180°, the sliding plate is interfered by the interference component, and the length between the connecting rod, the clamping frame and the fixing rod is fixed at this time, and then the fixing rod pulls the trigger switch, so that the starting component is opposite to the thigh electrode part. The calf electrode is energized, the muscles on the back of the thigh and the back of the calf contract, so that the calf is bent, so as to avoid damage to the ligament; by adjusting the component to adjust the extension length of the connecting rod to connect with the connecting block, as well as the conflicting components at different positions The elastic force of the fourth elastic member is adjusted by conflicting with the sliding plate. Under the condition that the position of the activation assembly remains unchanged, different elastic forces of the fourth elastic member can activate the activation assembly, thereby being able to adapt to people with different degrees of rehabilitation. Greatly improve usability.

The present invention is further provided that: the interference component includes an adjustment slot, an adjustment bolt and a resistance plate, the adjustment slot is opened on the side wall of the clamping frame and is parallel to the chute, and the adjustment bolt passes through the adjustment slot It is screwed with the abutting plate, and the abutting plate is used for colliding with the sliding plate.

By adopting the above technical solution, the adjustment bolt is moved along the length direction of the adjustment groove, the contact plate moves synchronously with the adjustment bolt, and then the adjustment bolt is rotated, so that the adjustment bolt and the outer wall of the clamping frame generate a large friction force, and at the same time, the interference is caused. Large frictional force is generated between the plate and the clamping frame, so that the positioning before the collision plate and the clamping frame is realized, and the adjustment bolt can be positioned at any position of the adjustment groove, which improves the practicability.

The present invention further provides that: the adjustment assembly includes a fixed sleeve, a rotating sleeve, an extension rod and a locking bolt, the fixed sleeve is fixed on the connecting rod, the rotating sleeve is rotatably connected to the connecting rod, the The fixed sleeve is located inside the rotating sleeve, the extension rod is placed in the fixed sleeve and one end is rotatably connected with the sliding plate, the rotating sleeve is provided with a straight groove, the rotating sleeve is sleeved with a spiral groove, and the lock The tightening bolt passes through the straight groove, the helical groove and is threadedly connected with the extension rod.

By adopting the above technical solution, when the rotating sleeve is rotated, the locking bolt moves along the straight groove while moving along the spiral groove, so that the inner wall of the straight groove and the inner wall of the spiral groove push the locking bolt to move, so that the locking bolt drives the extension rod moving, so that the distance between the connecting rod and the sliding plate can be adjusted, so that the connecting rod can be connected with the connecting block.

To sum up, the present invention has the following beneficial effects:

1. By adjusting the position of the interference component to adjust the stroke position of the sliding plate, the maximum deformation amount of the fourth elastic member is changed, so that the elastic force can be adjusted, which can adapt to patients with different degrees of rehabilitation, and greatly improve the practicability;

2. By adjusting the position of the conflicting component and the adjusting component at the same time, the patient can start the activation component to the thigh electrode part and the calf electrode part under the elastic force of various fourth elastic members, so that the thigh muscles and calf muscles are tense and unbalanced. Bend the calf; promote the recovery of lower extremity muscle strength;

3. Through the arrangement of the first fixing mechanism, the second fixing mechanism and the connecting mechanism, the patient can wear and remove the device more conveniently.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural schematic diagram that embodies the elastic adjustment mechanism;

Fig. 3 is the enlarged view of A place of Fig. 2;

Fig. 4 is the structural schematic diagram that embodies the detachable assembly;

FIG. 5 is a schematic diagram showing the connection of the activation assembly with the thigh electrode part and the calf electrode part.

Reference numerals: 11, front thigh support plate; 12, thigh rear support plate; 21, calf front support plate; 22, calf rear support plate; 3, first fixing mechanism; 31, first pull strap; 32, first Bracket; 33, the first pressure plate; 34, the first pressure tooth; 4, the second fixing mechanism; 41, the second drawstring; 42, the second bracket; 43, the second pressure plate; 44, the second pressure tooth; 5, connecting mechanism; 51, connecting frame; 52, turntable; 53, strut; 54, detachable assembly; 541, positioning pin; 542, first elastic member; 543, connecting rod; 544, pull rod; 61, thigh electrode part; 62, calf electrode part; 7, starter assembly; 71, placing box; 72, power supply; 73, lead wire; 74, trigger switch; 75, shrapnel; 8, elastic adjustment mechanism; 83, chute; 84, interference component; 841, adjustment groove; 842, adjustment bolt; 843, resistance plate; 85, connecting rod; 851, connecting block; 86, fourth elastic member; 87, adjustment assembly; Fixed sleeve; 872, rotating sleeve; 873, extension rod; 874, locking bolt; 88, fixed rod.

Detailed ways

The present invention will be further described with reference to the accompanying drawings.

As shown in FIGS. 1 to 4 , a lower limb exercise rehabilitation device includes a front thigh support plate 11 , a rear thigh support plate 12 , a front calf support plate 21 and a rear calf support plate 22 .

The front thigh support plate 11 and the rear thigh support plate 12 are connected by the first fixing mechanism 3 . The first fixing mechanism 3 includes a first pulling strap 31 , a first bracket 32 , a first pressing plate 33 , a first pressing tooth 34 and a second elastic member (not shown in the figure). The first bracket 32 is fixedly connected to the front side of the front thigh support plate 11, and the middle of the first pressure plate 33 is hinged on the first bracket 32, so that the first pressure plate 33 and the front thigh support plate 11 form a first clamping area. . The first pressing teeth 34 are integrally provided at the end of the first pressing plate 33 . The second elastic member is a spring, and the two ends thereof are respectively connected with the first pressing plate 33 and the first bracket 32 . One end of the first pulling strap 31 is fixedly connected to the rear thigh support plate 12 , and the other end passes through the above-mentioned first clamping area. The rear thigh support plate 12 is hinged to one end of the thigh front support plate 11 .

Turn the thigh rear support plate 12 over, place the thigh between the thigh rear support plate 12 and the thigh front support plate 11, then turn the thigh rear support plate 12 over, and pull the first pull strap 31 to keep the first pull strap 31 away from the thigh One end of the rear support plate 12 penetrates into the first clamping area, and the first pressing plate 33 is released, so that the first pressing plate 33 embeds the first pressing teeth 34 into the first pulling belt 31 through the elastic force of the second elastic member , through the elastic action of the second elastic member, the first pressing plate 33 is kept in a state, so that the rear support plate 12 of the thigh and the front support plate 11 of the thigh are fixedly connected.

The calf front support plate 21 and the calf rear support plate 22 are connected by the second fixing mechanism 4 . The second fixing mechanism 4 includes a second pulling strap 41 , a second bracket 42 , a second pressing plate 43 , a second pressing tooth 44 and a third elastic member 45 (not shown in the figure). The second bracket 42 is fixedly connected to the front side of the calf front support plate 21 ; the middle part of the second pressing plate 43 is hinged on the second bracket 42 . A second clamping area is formed before the second pressing plate 43 and the front support plate 21 of the lower leg; the second pressing teeth 44 are integrally arranged at the end of the second pressing plate 43 . The third elastic member 45 is a spring, and its two ends are respectively connected with the second pressing plate 43 and the second bracket 42 . One end of the second drawstring 41 is connected to the rear support plate 22 of the calf. The calf rear support plate 22 is hinged to one end of the calf front support plate 21 .

Similarly, the calf is placed between the front calf support plate 21 and the rear calf support plate 22 , and the second pull strap 41 is inserted into the second clamping area, and then the third elastic member 45 is used for elastic force. The two pressing teeth 44 are embedded in the second pulling belt 41 to realize the fixed connection between the front support plate 21 of the lower leg and the rear support plate 22 of the lower leg.

The thigh front support plate 11 , the thigh rear support plate 12 , the calf front support plate 21 and the calf rear support plate 22 can all be made of elastic fabrics to improve the wrapping with the legs.

The front support plate 11 of the thigh and the rear support plate 22 of the lower leg are rotatably connected through the connecting mechanism 5 . The connecting mechanism 5 includes a connecting frame 51 , a turntable 52 , a support rod 53 and a detachable assembly 54 . The connecting frame 51 is fixedly connected to the rear support plate 22 of the lower leg; the turntable 52 is rotatably connected to the connecting frame 51 . The position of the turntable 52 corresponds to the knee. The strut 53 is connected to the front thigh support plate 11 . The support rod 53 and the turntable 52 are connected by the above-mentioned detachable assembly 54 .

The detachable assembly 54 includes a positioning pin 541 , a first elastic member 542 , a connecting rod 543 and a pulling rod 544 . The turntable 52 is provided with positioning holes, sliding holes and pulling holes, and the pulling holes and the sliding holes are arranged in an L shape. The positioning hole cooperates with the support rod 53 to open the sliding hole on the inner wall of the positioning hole. The positioning pin 541 is slidably connected in the sliding hole, the pulling hole is communicated with the sliding hole, and the pulling rod 544 is slidably connected in the pulling hole.

Both ends of the connecting rod 543 are hinged with the pull rod 544 and the positioning pin 541 respectively. The first elastic member 542 is a spring, and the two ends are respectively connected with the inner wall of the sliding hole and the positioning pin 541 . A concave hole is formed on the side wall of the support rod 53, and the positioning pin 541 is matched with the concave hole.

After wrapping the first fixing mechanism 3 to the thigh, the support rod 53 is inserted into the positioning hole. When the concave hole corresponds to the positioning pin 541 , the positioning pin 541 is inserted into the concave hole by the elastic force of the first elastic member 542 , so as to realize the fixed connection between the support rod 53 and the turntable 52 . The lower leg is then wrapped by the second fixing mechanism 4 .

During walking, the knees are bent and the turntable 52 is rotated. The left and right sides of the knee can be protected by the support of the connecting frame 51 and the turntable 52 .

In order to make the calf step forward, avoid an angle of more than 180° with the thigh to avoid damage to the ligament. A thigh electrode part 61 is provided in the rear thigh support plate 12 , and a calf electrode part 62 is provided in the rear leg support plate 22 . The thigh electrode part 61 and the calf electrode part 62 are energized, so that the muscles on the back of the thigh and the back of the calf are tense, so that the calf can be actively bent.

An activation assembly 7 is provided on the rear support plate 12 of the thigh, and the thigh electrode part 61 and the lower leg electrode part 62 are connected in parallel with the activation assembly 7 .

Wherein, the starting assembly 7 includes a placing box 71 , a power source 72 , a wire 73 and a trigger switch 74 . The placing box 71 is rotatably connected to the rear thigh support plate 12 , and the power supply 72 is placed in the placing box 71 . The lead wire 73 is connected to the power source 72 , the thigh electrode portion 61 , and the lower leg electrode portion 62 . The trigger switch 74 is arranged on the wire 73 . The thigh electrode part 61 includes a thigh positive electrode piece and a thigh negative electrode piece; the calf electrode part 62 includes a calf positive electrode piece and a calf negative electrode piece.

An elastic piece 75 is provided in the storage box 71 , and the elastic piece 75 is connected to the trigger switch 74 . One end of the trigger switch 74 away from the elastic piece 75 protrudes from the storage box 71 .

A pulling force is applied to the trigger switch 74 to overcome the elastic force of the shrapnel 75 , the trigger switch 74 generates a certain displacement and conducts the wire 73 , so that the thigh electrode 61 and the calf electrode 62 are energized and the muscles are stimulated. After the application of the force is stopped, the trigger switch 74 is reset by the elastic force of the elastic sheet 75, and then the lead wire 73 is disconnected, the thigh electrode part 61 and the calf electrode part 62 are powered off and the muscle stimulation is stopped.

An elastic adjustment mechanism 8 is provided between the thigh rear support plate 12 and the calf rear support plate 22 . Through the elastic adjustment mechanism 8, the elastic force can be adapted to patients in different rehabilitation states, which greatly improves the practicability.

The elastic adjustment mechanism 8 includes a locking frame 81 , a sliding plate 82 , a chute 83 , a contact assembly 84 , a connecting rod 85 , a fourth elastic member 86 , an adjustment assembly 87 and a fixing rod 88 . The two ends of the fixing rod 88 are respectively connected to the clamping frame 81 and the trigger switch 74 . The sliding slot 83 is provided on the side wall of the locking frame 81 , and the sliding plate 82 is slidably connected to the sliding slot 83 and used to collide with the interference component 84 .

One end of the connecting rod 85 is connected to the sliding plate 82 , and the other end is detachably connected to the connecting block 851 on the calf rear support plate 22 after passing through the clamping frame 81 . The connecting block 851 is rotatably connected to the rear support plate 22 of the calf. The fourth elastic member 86 is a spring, and the two ends are respectively connected with the sliding plate 82 and the clamping frame 81 .

The above-mentioned interference assembly 84 includes an adjustment slot 841 , an adjustment pin 842 and a resistance plate 843 . The adjusting groove 841 is opened on the side wall of the locking frame 81 and is parallel to the sliding groove 83 . The adjusting pin 842 passes through the adjusting groove 841 and is threadedly connected with the abutting plate 843 . The abutting plate 843 is used to interfere with the sliding plate 82 . Rotating the adjusting bolt 842 makes the contact plate 843 collide with the inner wall of the clamping frame 81 through screw transmission, and generates a relatively large frictional force. The abutting plate 843 is elongated.

The above-mentioned adjustment assembly 87 includes a fixed sleeve 871 , a rotating sleeve 872 , an extension rod 873 and a locking bolt 874 . The fixed sleeve 871 is fixed on the connecting rod 85 ; the rotating sleeve 872 is rotatably connected to the connecting rod 85 through the bearing, so that the fixed sleeve 871 is located inside the rotating sleeve 872 . The extension rod 873 is placed in the fixed sleeve 871 and one end is rotatably connected with the sliding plate 82 through a bearing. A straight groove is formed on the rotating sleeve 872, and a spiral groove is sleeved on the rotating sleeve 872; By rotating the rotating sleeve 872 , the inner wall of the straight groove collides with the locking bolt 874 , and at the same time, the inner wall of the spiral groove collides with the locking bolt 874 . The locking bolt 874 drives the extension rod 873 to move along its own length direction. Through the self-locking property of the spiral groove, the position of the extension rod 873 can be arbitrarily positioned.

To sum up, the front calf support plate 21 and the rear calf support plate 22 are set on the calf through the second fixing mechanism 4 ; Insert the support rod 53 into the positioning hole. All-round protection for the legs. Then, the rotating sleeve 872 is rotated to connect the connecting rod 85 with the connecting block 851 . Rotate the adjusting pin 842 to position the abutting plate 843 . When the patient walks, the calf moves forward, the fourth elastic member 86 stretches and generates a backward elastic force, and at the same time, the sliding plate 82 moves along the chute 83 . When the included angle between the calf and the thigh gradually approaches 180°, the sliding plate 82 collides with the abutting plate 843, and the connecting rod 85 cannot continue to move. At this time, the elastic adjustment mechanism 8 becomes a whole whose length can no longer be stretched. As the calf continues to stretch forward, the fixed rod 88 pulls the trigger switch 74, the trigger switch 74 conducts the lead 73, the calf electrode 62 and the thigh electrode 61 are activated, and the muscles are tense and urge the calf to bend actively. This can effectively avoid ligament damage. After the calf is bent, the sliding plate 82 is separated from the abutting plate 843, and at the same time, the elastic sheet 75 resets the trigger switch, the calf electrode 62 and the thigh electrode 61 are powered off, and the muscle stimulation stops.

The adjusting bolt 842 is moved along the length direction of the adjusting groove 841 , and then the adjusting bolt 842 is tightened so that the abutting plate 843 is located at different positions of the sliding groove 83 . That is, the maximum deformation amount of the fourth elastic member 86 changes, and the elastic force changes. At the same time, the rotating sleeve 872 is rotated to connect the connecting rod 85 with the connecting block 851 . At this time, when the patient walks and the calf moves forward, the elastic force of the fourth elastic member 86 changes, which can adapt to patients with different degrees of recovery, so that the patient can use it before, during, and after recovery, which greatly improves the practicality. sex.

The advantages of the present invention are:

First, the thigh part and the calf part are detachably arranged separately, which can facilitate the patient to wear the device on the leg.

Second, the device can effectively protect the left and right sides of the leg.

Third, by adjusting the maximum deformation amount of the fourth elastic member 86 by the elastic adjustment mechanism 8, it can be adapted to patients with different degrees of rehabilitation, and the practicability is greatly improved.

Fourth, the abutting plates 843 are placed at different positions of the chute 83, and the maximum elastic force of the fourth elastic member 86 can be adjusted steplessly, and both the activation components 7 can trigger the thigh electrode part 61 and the calf electrode part 62.

Fifth, the positions of the starter assembly 7 and the connection block 851 do not change, and when the angle between the calf and the thigh is close to 180°, the elastic force adjustment can be realized to trigger the thigh electrode part 61 and the calf electrode part 62, and immediately after the calf is bent. The thigh electrode part 61 and the calf electrode part 62 can be stopped from triggering, and the process is repeated, and the volume is small and easy to wear.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. a lower extremity exercise rehabilitation device, comprising the front support plate of the thigh, the back support plate of the thigh, the front support plate of the calf and the back support plate of the calf, it is characterized in that: the front support plate of the thigh and the rear support plate of the thigh pass the first fixing mechanism Connection, the front support plate of the calf and the rear support plate of the calf are connected by a second fixing mechanism, the front support plate of the thigh and the rear support plate of the calf are connected by a connecting mechanism by rotation, and the rear support plate of the thigh and the rear support plate of the calf are connected. An elastic adjustment mechanism is arranged between the thighs, a thigh electrode part is arranged in the thigh rear support plate, and a calf electrode part is arranged in the lower leg rear support plate. 2 . The lower extremity exercise rehabilitation device according to claim 1 , wherein the connecting mechanism comprises a connecting frame, a turntable, a support rod and a detachable assembly, and the connecting frame is connected with the rear support plate of the calf. 3 . The turntable is rotatably connected to the connecting frame, the support rod is connected with the front support plate of the thigh, and the support rod and the turntable are connected by the detachable assembly. 3 . The lower limb exercise rehabilitation device according to claim 2 , wherein the detachable component comprises a positioning pin, a first elastic member, a connecting rod and a pull rod, and the turntable is provided with positioning holes and sliding holes. 4 . and pull hole, the positioning hole is matched with the support rod, the sliding hole is opened on the inner wall of the positioning hole, the positioning pin is slidably connected in the sliding hole, the pulling hole communicates with the sliding hole, the pulling rod The two ends of the connecting rod are hinged with the pull rod and the positioning pin respectively, the two ends of the first elastic member are connected with the inner wall of the sliding hole and the positioning pin, and the side wall of the support rod is provided with There are concave holes, and the positioning pins are matched with the concave holes. 4. The lower limb exercise rehabilitation device according to any one of claims 1-3, wherein the first fixing mechanism comprises a first pull strap, a first bracket, a first pressing plate, a first pressing tooth and a first Two elastic members, the first bracket is connected with the front thigh support plate, the first pressing plate is hinged on the first bracket and forms a first clamping area with the front thigh support plate, the first pressing teeth are connected with the first The pressure plate is connected, the second elastic piece is connected with the first pressure plate and the first bracket, and one end of the first pull strap is connected with the thigh rear support plate. 5. The lower limb exercise rehabilitation device according to any one of claims 1-4, wherein the second fixing mechanism comprises a second pulling strap, a second bracket, a second pressing plate, a second pressing tooth and a first Three elastic members, the second bracket is connected to the front support plate of the lower leg, the second pressing plate is hinged on the second bracket and forms a second clamping area with the front support plate of the lower leg, and the second pressing teeth are connected to the second support plate. The pressure plate is connected, the third elastic piece is connected with the second pressure plate and the second bracket, and one end of the second pull strap is connected with the calf rear support plate. 6. The lower extremity exercise rehabilitation device according to any one of claims 1-5, wherein a starter assembly is provided on the rear support plate of the thigh, the thigh electrode part is electrically connected to the starter assembly, and the lower leg is electrically connected to the starter assembly. The electrode portion is electrically connected to the activation assembly. 7. The lower extremity exercise rehabilitation device according to claim 6, wherein the starting component comprises a placing box, a power supply, a lead wire and a trigger switch, the placing box is connected to the rear support plate of the thigh, and the power supply is placed in the back of the thigh. In the placement box, the wire is connected to the power source, the thigh electrode part, and the calf electrode part, and the trigger switch is arranged on the wire. 8. The lower limb exercise rehabilitation device according to any one of claims 1-7, wherein the elastic adjustment mechanism comprises a clamping frame, a sliding plate, a chute, an interference component, a connecting rod, a fourth elastic The two ends of the fixed rod are respectively connected with the positioning frame and the trigger switch, the sliding slot is opened on the side wall of the positioning frame, and the sliding plate is slidably connected to the sliding plate. The groove is used to collide with the interference component. One end of the connecting rod is connected to the sliding plate, and the other end is connected to the connecting block on the rear support plate of the calf after passing through the clamping frame. The two ends of the fourth elastic member They are respectively connected with the sliding plate and the card position frame. 9 . The lower extremity exercise rehabilitation device according to claim 8 , wherein the resistance component comprises an adjustment groove, an adjustment bolt and a resistance plate, and the adjustment groove is opened on the side wall of the clamping frame and is connected with the sliding plate. 10 . The grooves are parallel, and the adjusting bolt passes through the adjusting groove and is threadedly connected with the abutting plate, and the abutting plate is used to interfere with the sliding plate. 10. The lower extremity exercise rehabilitation device according to claim 8 or 9, wherein the adjustment component comprises a fixed sleeve, a rotating sleeve, an extension rod and a locking bolt, and the fixed sleeve is fixed on the connecting rod, The rotating sleeve is rotatably connected to the connecting rod, the fixed sleeve is located inside the rotating sleeve, the extension rod is placed in the fixed sleeve and one end is rotatably connected with the sliding plate, and the rotating sleeve is provided with a straight groove, The rotating sleeve is sleeved with a helical groove, and the locking bolt passes through the straight groove and the helical groove and is threadedly connected with the extension rod.

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