A limb rehabilitation aid for a stroke patient

Abstract

The application discloses a limb rehabilitation assisting device for a cerebral palsy patient, and relates to the technical field of rehabilitation treatment devices. The limb rehabilitation assisting device for preventing foot cramps of a cerebral palsy patient comprises a bed, a support is fixedly connected to the bed, a gas cylinder is fixedly connected to one side of the support, a movable frame is fixedly connected to the telescopic rod of the gas cylinder, the support is slidably connected to the movable frame, the first clamping plate is provided with a support assembly for preventing foot cramps, the support assembly comprises a connecting rod, the connecting rod is fixedly connected with a first support plate, the first support plate is rotatably connected with a second support plate, and the first support plate is slidably connected with a second wedge-shaped frame. The movable frame is driven by the gas cylinder to move back and forth, so that the patient's legs continuously perform bending and straightening movements, thereby playing a role in exercising the legs. In the process, the second support plate intermittently pushes the feet straight to the left through the extrusion cooperation of the second wedge-shaped frame and the bed, so that the feet are prevented from being bent due to cramps.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation therapy equipment technology, and in particular to a limb rehabilitation assistive device for stroke patients. Background Technology

[0002] Stroke is a sudden circulatory disorder of the brain, and is the medical name for cerebrovascular accident. The most common symptom of stroke is hemiplegia of the lower limbs, which causes the patient to lose the ability to move the limbs independently. Patients need to undergo a long-term, repeated and gradual rehabilitation treatment process, which uses special training devices to exercise the patient's limbs so that the patient can regain sensation in the limbs.

[0003] Patent CN114948496A discloses a limb rehabilitation training device for stroke patients that can be assembled with a bed. The device uses a motor to drive a second threaded rod to rotate, which moves the movable frame and the fixed rod. In conjunction with the rotation of the rotating rod, the exercise board can be rotated to achieve the effect of leg exercise for the patient. When the movable frame moves, it also drives the rotating shaft, massage roller and massage particles to move. In conjunction with the action of the massage roller and massage particles, the patient's legs can be massaged.

[0004] The aforementioned patents primarily address limb exercises by promoting blood circulation in the legs through massage mechanisms. However, in addition to loss of sensation in the lower limbs, stroke patients may also experience sequelae such as foot spasms and cramps. Foot spasms can lead to toe curvature, affecting subsequent rehabilitation and standing ability. Therefore, this invention provides a limb rehabilitation assistive device for stroke-paralyzed patients to prevent foot spasms. Summary of the Invention

[0005] In order to overcome the shortcomings of limb rehabilitation assistive devices for stroke patients that cannot prevent foot spasms, this invention provides a limb rehabilitation assistive device for stroke patients that prevents foot spasms.

[0006] A limb rehabilitation assistive device for stroke patients includes a bed, a support frame fixedly connected to the bed, a cylinder fixedly connected to one side of the support frame, a movable frame fixedly connected to the telescopic rod of the cylinder, the support frame and the movable frame being slidably connected, symmetrically distributed slides being slidably connected to the movable frame, a first clamping plate fixedly connected to the slides, a second clamping plate rotatably connected to the first clamping plate, a locking assembly for clamping and fixing the ankle being provided between the second clamping plate and the adjacent first clamping plate, and a support assembly for preventing foot spasms being provided on the first clamping plate.

[0007] As a further preferred embodiment, the locking assembly includes a first wedge-shaped frame slidably connected to a second clamping plate, the second clamping plate being used to lock an adjacent first clamping plate, and a first spring being fixedly connected between the first wedge-shaped frame and the adjacent second clamping plate.

[0008] As a further preferred embodiment, the support assembly includes a connecting rod fixed to the first clamping plate and a first support plate. The first support plate is rotatably connected to a second support plate and slidably connected to a second wedge frame. The second wedge frame is in a pressing fit with an adjacent second support plate and is in a pressing fit with the bed. A second spring is fixed between the second wedge frame and the adjacent first support plate.

[0009] As a further preferred embodiment, the movable frame is tilted toward the side closer to the first clamping plate.

[0010] As a further preferred embodiment, the system also includes symmetrically distributed air cylinders, each of which is fixedly connected to the support. Each air cylinder is slidably connected to a piston rod, and an elastic telescopic component is fixedly connected between the piston rod and the movable frame. An air pipe is fixedly connected between the piston rod and the adjacent first clamping plate, and the air pipe communicates with the adjacent air cylinder. The air pipe is configured as a flexible hose and is connected to an air cushion located between the adjacent first clamping plate and the second clamping plate.

[0011] As a further preferred embodiment, the system also includes a motor, which is fixedly connected to the bracket. The output shaft of the motor is fixedly connected to a first screw, which is threadedly connected to symmetrically distributed movable plates. The movable plates are slidably connected to the bracket. The movable plates are fixedly connected to a fixed rod, which is slidably connected to a pull plate. The pull plate is in a limiting engagement with an adjacent connecting rod.

[0012] As a further preferred embodiment, a third spring is also included, which is fixed between the slide and the movable frame. The support is rotatably connected to a push frame, which is tightly fitted to the support, and the slide and the push frame are in a pressing fit.

[0013] As a further preferred embodiment, the device also includes a magnet fixed to the push frame, a first fixing plate fixed to the bracket, and a second fixing plate fixed to the bracket, both of which are magnetically attracted to the magnet.

[0014] As a further preferred embodiment, it also includes a compression rod fixed to the pulling plate, and the bracket is slidably connected with symmetrically distributed wedge plates, which are in compression engagement with adjacent compression rods.

[0015] As a further preferred embodiment, it also includes symmetrically distributed second screws, each of which is rotatably connected to the bracket, and the second screws are threadedly connected to the adjacent wedge plate.

[0016] By adopting the above technical solution, the present invention has at least the following advantages:

[0017] 1. This invention uses a cylinder to drive a moving frame to move back and forth, causing the patient's legs to continuously flex and straighten, thus exercising the legs. During this process, the second wedge frame and the bed work together to push the second support plate to the left intermittently to straighten the foot, preventing foot spasms and bending.

[0018] 2. This invention enables leg bending and straightening movements by moving the frame back and forth, while also allowing the air cushion to inflate and deflate intermittently, thus accelerating blood circulation in the legs.

[0019] 3. This invention uses a motor to drive a pull plate to move the connecting rod intermittently in and out, causing the legs to open outward and close inward intermittently, thus realizing the expansion and contraction movement of the legs when they are not bending or straightening.

[0020] 4. This invention uses the squeezing action of the push frame and the slide, as well as the elastic force of the third spring, to cause the slide to drive the first clamp plate to move intermittently in and out, thereby causing the legs to open outward and close inward intermittently, realizing the expansion and contraction movements of the legs when performing flexion and straightening movements, so as to meet various exercise needs.

[0021] 5. This invention uses the squeezing action of a wedge plate and a squeezing rod to slightly lift the legs off the bed surface, preventing injury from friction caused by the legs rubbing against the bed. Furthermore, by manually rotating the second screw, the height of the wedge plate can be adjusted to allow the legs to be lifted to a suitable height, thus improving the patient's comfort during exercise. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the support frame of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of the cylinder and moving frame components of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the second clamping plate and the first wedge frame of the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the first support plate and other components of the present invention.

[0028] Figure 7 This is a three-dimensional structural diagram of the second support plate and the second wedge frame of the present invention.

[0029] Figure 8 This is a three-dimensional structural diagram of the compression cylinder and compression rod components of the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of the trachea and air cushion of the present invention.

[0031] Figure 10 This is a three-dimensional structural diagram of the components such as the pull plate and the moving plate of the present invention.

[0032] Figure 11 This is a three-dimensional structural diagram of the second screw and motor components of the present invention.

[0033] Figure 12 This is a three-dimensional structural diagram of the third spring and push frame components of the present invention.

[0034] Figure 13 This is a three-dimensional structural diagram of the fixing rod and wedge plate components of the present invention.

[0035] Wherein: 1-bed, 101-bracket, 102-cylinder, 103-moving frame, 104-slide, 105-first clamping plate, 106-second clamping plate, 107-first wedge frame, 108-first spring, 2-first support plate, 201-second support plate, 202-second wedge frame, 203-second spring, 204-connecting rod, 3-air cylinder, 301-piston rod, 302-elastic telescopic component, 303-air pipe, 304-air cushion, 4-pull plate, 401-moving plate, 402-first screw, 403-motor, 5-third spring, 501-push frame, 502-magnet, 503-first fixed plate, 504-second fixed plate, 6-pressing rod, 601-wedge plate, 602-second screw. Detailed Implementation

[0036] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0037] Example 1: A limb rehabilitation assistive device for stroke patients, combined with... Figure 1 To be continued Figure 4The device includes a bed 1, a support 101 fixedly connected to the middle of the bed 1, a cylinder 102 fixedly connected to the rear right side of the support 101, a movable frame 103 fixedly connected to the telescopic rod of the cylinder 102, the movable frame 103 tilting downward to the right, the support 101 and the movable frame 103 slidably connected, and a slide 104 symmetrically distributed front and rear on the right side of the movable frame 103, a first clamping plate 105 fixedly connected to the lower part of the slide 104, a second clamping plate 106 rotatably connected to the front side of the first clamping plate 105, a locking assembly provided between the second clamping plate 106 and the adjacent first clamping plate 105, the locking assembly clamping and fixing the ankle between the first clamping plate 105 and the second clamping plate 106, the first clamping plate 105 being provided with a support assembly, the support assembly supporting the foot to prevent foot spasms.

[0038] Combined with appendix Figure 5 The locking assembly includes a first wedge frame 107, which is slidably connected to the upper part of the second clamping plate 106. The second clamping plate 106 is used to lock the adjacent first clamping plate 105. A first spring 108 is fixedly connected between the first wedge frame 107 and the adjacent second clamping plate 106.

[0039] Combined with appendix Figure 6 To be continued Figure 7 The support assembly includes a connecting rod 204, which is fixed to the lower right side of the first clamping plate 105. A first support plate 2 is fixed to the right side of the connecting rod 204. A second support plate 201 is rotatably connected to the upper part of the first support plate 2. When the first support plate 2 and the second support plate 201 are vertical, they together straighten the footboard to prevent foot cramps. A second wedge frame 202 is slidably connected to the right side of the first support plate 2. The top of the second wedge frame 202 is pressed against the adjacent second support plate 201, and the bottom of the second wedge frame 202 is pressed against the bed 1. A second spring 203 is fixed between the second wedge frame 202 and the adjacent first support plate 2.

[0040] First, medical staff pull the first wedge frame 107 upwards, compressing the first spring 108. This causes the first clamp 105 to rotate slightly downwards and open under gravity. Next, the patient lies on the bed 1 with their head to the left and feet to the right, supporting their feet between the first clamp 105 and the second clamp 106 on the front and back sides respectively, with the soles of their feet pressed against the left sides of the first support plate 2 and the second support plate 201. Then, the first clamp 105 is manually rotated upwards, causing it to press against the first wedge frame 107 and slide upwards. The first spring 108 is compressed. When the first clamp 105 disengages from the first wedge frame 107, the first spring 108 returns to its original position, causing the first wedge frame 107 to open. 7. Slide downwards to lock the first clamp 105. Thus, the first clamp 105 and the second clamp 106 work together to clamp and fix the patient's ankle. Then, control the extension rod of the cylinder 102 to shorten, causing the moving frame 103 to slide to the upper left, thereby causing the slide 104 to move to the upper left, and then causing the first clamp 105 to move to the upper left, making the patient's knee bend upwards. Then, control the extension rod of the cylinder 102 to extend, causing the moving frame 103 to slide to the lower right, thereby causing the slide 104 to move to the lower right, and then causing the first clamp 105 to move to the lower right, making the patient's knee straight down. In this way, the patient's leg continuously performs bending and straightening movements, which has the effect of exercising the leg.

[0041] During the aforementioned exercise, the first clamping plate 105 moves to the upper left, causing the connecting rod 204 to move to the upper left, thereby moving the first support plate 2 to the upper left, and further moving the second support plate 201 and the second wedge frame 202 to the upper left. When the second wedge frame 202 disengages from the bed 1, the compressed second spring 203 returns to its original state, causing the second wedge frame 202 to slide downwards along the first support plate 2. The second wedge frame 202 no longer supports the second support plate 201, and the second support plate 201 rotates to the right at a certain angle under the natural bending action of the feet. The first clamp 105 moves to the lower right, causing the connecting rod 204 to move to the lower right, which in turn causes the first support plate 2 to move to the lower right, and further causes the second support plate 201 and the second wedge frame 202 to move to the lower right. When the second wedge frame 202 contacts the bed 1, the bed 1 squeezes the second wedge frame 202 to slide upward along the first support plate 2, the second spring 203 is compressed, and the second wedge frame 202 squeezes the second support plate 201 to rotate to the left and reset, so that the second support plate 201 straightens the foot. In this way, the patient's leg is intermittently straightened to prevent foot spasms.

[0042] In summary, the present invention drives the movable frame 103 to move back and forth through the cylinder 102, so that the patient's legs can continuously perform bending and straightening movements, which can exercise the legs. During this process, through the squeezing cooperation between the second wedge frame 202 and the bed 1, the second support plate 201 intermittently pushes the foot to the left to straighten it, preventing foot spasms and bending.

[0043] Example 2: Based on Example 1, combined with Appendix Figure 8 To be continued Figure 9 It also includes air cylinders 3 symmetrically distributed front and back. The air cylinders 3 are all fixed to the upper right side of the support 101. A piston rod 301 is slidably connected inside the air cylinder 3. An elastic telescopic component 302 is fixed between the piston rod 301 and the movable frame 103. An air pipe 303 is fixed between the piston rod 301 and the adjacent first clamping plate 105. The air pipe 303 is connected to the adjacent air cylinder 3. The air pipe 303 is a flexible hose. The air pipe 303 is connected to an air cushion 304. Through the pulling and pulling movement between the air cylinder 3 and the piston rod 301, the air cushion 304 is intermittently sucked in and deflated, accelerating blood circulation in the legs. The air cushion 304 is located between the adjacent first clamping plate 105 and second clamping plate 106.

[0044] To accelerate blood circulation in the legs, the specific operation is as follows: The movable frame 103 slides to the upper left, driving the piston rod 301 to slide to the left along the air cylinder 3 via the elastic telescopic component 302, so that the gas in the air cylinder 3 is pressed into the air cushion 304 through the air pipe 303, causing the air cushion 304 to expand and compress the legs. The movable frame 103 slides to the lower right, driving the piston rod 301 to slide to the right along the air cylinder 3 via the elastic telescopic component 302, so that the gas in the air cushion 304 is drawn into the air cylinder 3 through the air pipe 303, causing the air cushion 304 to deflate and release the legs.

[0045] In summary, the present invention enables leg bending and straightening movements by moving the movable frame 103 back and forth, while also causing the air cushion 304 to inflate and deflate intermittently, thereby accelerating blood circulation in the legs.

[0046] Example 3: Based on Example 2, combined with Appendix Figure 10 To be continued Figure 11It also includes a motor 403, which is fixed to the lower rear part of the bracket 101. The output shaft of the motor 403 is fixed to a first screw 402. The front and rear sides of the first screw 402 are threaded with movable plates 401. The movable plates 401 are slidably connected to the bracket 101. The movable plates 401 are fixed to a fixed rod. The fixed rod is slidably connected to a pull plate 4. The pull plate 4 is limited to the adjacent connecting rod 204. The connecting rod 204 moves upward and disengages from the pull plate 4.

[0047] To achieve leg expansion and contraction movements without bending or straightening the legs, the specific operation is as follows: The motor 403 is started. The output shaft of the motor 403 drives the first screw 402 to rotate, thereby moving the moving plate 401 outward. This, in turn, moves the pulling plate 4 outward via the fixed rod, which in turn moves the connecting rod 204 outward. The connecting rod 204 then moves the first clamping plate 105 outward, causing the legs to open outward. Subsequently, the output shaft of the motor 403 drives the first screw 402 to rotate in the opposite direction, thereby moving the moving plate 401 inward. This, in turn, moves the pulling plate 4 inward via the fixed rod, which in turn moves the connecting rod 204 inward. The connecting rod 204 then moves the first clamping plate 105 inward, causing the legs to close inward. After repeated reciprocating movements, the motor 403 is turned off.

[0048] In summary, the present invention uses the motor 403 to drive the pulling plate 4 to move the connecting rod 204 intermittently in and out, so that the legs intermittently open outward and close inward, thereby realizing the expansion and contraction movement of the legs when they are not bending or straightening.

[0049] Combined with appendix Figure 12 It also includes a third spring 5, which is fixed between the slide 104 and the movable frame 103. A push frame 501 is rotatably connected between the front and rear sides of the upper part of the support 101. The push frame 501 is tightly fitted with the support 101. The right side of the push frame 501 is set with a V-shaped angle. The slide 104 and the push frame 501 are pressed together with the V-shaped angle. A magnet 502 is fixed to the rear part of the push frame 501. A first fixing plate 503 is fixed to the upper rear part of the support 101. A second fixing plate 504 is fixed to the upper rear part of the support 101. The first fixing plate 503 is located to the lower right of the second fixing plate 504. Both the first fixing plate 503 and the second fixing plate 504 are magnetically attracted to the magnet 502.

[0050] To simultaneously achieve leg expansion and contraction movements during leg flexion and extension, the specific operation is as follows: First, rotate the push frame 501 so that its right apex is positioned between the two slides 104. At this time, the magnet 502 is magnetically attracted to the first fixed plate 503. As the moving frame 103 drives the slides 104 to move to the upper right, the slides 104 slide outward along the moving frame 103 under the pressure of the push frame 501. The third spring 5 is compressed, and the slides 104 move... The first clamp 105 moves outward, causing the legs to spread outward. As the moving frame 103 drives the slide 104 to move to the lower left, the slide 104 slides inward along the moving frame 103 under the elastic force of the third spring 5. The slide 104 drives the first clamp 105 to move inward, causing the legs to close inward. When the legs are bending and straightening and no spreading or contracting movement is required, people rotate the push frame 501 in the opposite direction, and the magnet 502 magnetically attracts the second fixing plate 504.

[0051] In summary, the present invention utilizes the squeezing action of the push frame 501 and the slide 104, as well as the elastic force of the third spring 5, to cause the slide 104 to drive the first clamp 105 to move intermittently in and out, thereby causing the legs to intermittently open outward and close inward, realizing the expansion and contraction movements of the legs during bending and straightening movements, thus meeting various exercise needs.

[0052] Example 4: Based on Example 3, combined with Appendix Figure 13 It also includes a pressing rod 6, which is fixed to the outside of the pulling plate 4. The bracket 101 is slidably connected with wedge plates 601 distributed symmetrically in front and behind. The wedge plates 601 are pressed and engaged with the adjacent pressing rods 6. The lower parts of the front and rear sides of the bracket 101 are rotatably connected with second screws 602, which are threadedly connected to the adjacent wedge plates 601.

[0053] To prevent the legs from rubbing back and forth against the bed 1 when only expanding and contracting without bending or straightening, the legs need to be raised. The specific operation is as follows: the pulling plate 4 moves inward and outward, causing the squeezing rod 6 to move inward and outward. When the squeezing rod 6 moves outward, under the squeezing action of the wedge plate 601, the squeezing rod 6 causes the pulling plate 4 to slide upward along the fixed rod, thereby causing the connecting rod 204 to move upward. The connecting rod 204 causes the first clamping plate 105 to move upward, thereby causing the legs to be slightly raised and removed from the bed 1 surface. By manually rotating the second screw 602, the height of the wedge plate 601 can be adjusted to regulate the height of the legs raised.

[0054] In summary, the present invention, through the pressing and engaging action of the wedge plate 601 and the compression rod 6, allows the legs to be slightly lifted off the bed surface, preventing injury from friction against the bed. Furthermore, by manually rotating the second screw 602, the height of the wedge plate 601 can be adjusted to allow the legs to be lifted to a suitable height, thereby improving the patient's comfort during exercise.

[0055] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A limb rehabilitation assistive device for stroke patients with paralysis, characterized in that: The device includes a bed (1), a support (101) fixedly connected to the bed (1), a cylinder (102) fixedly connected to one side of the support (101), a movable frame (103) fixedly connected to the telescopic rod of the cylinder (102), the support (101) and the movable frame (103) being slidably connected, a slide (104) symmetrically distributed in front and back being slidably connected to the right side of the movable frame (103), a first clamping plate (105) fixedly connected to the lower part of the slide (104), a second clamping plate (106) being rotatably connected to the first clamping plate (105), a locking component for clamping and fixing the ankle being provided between the second clamping plate (106) and the adjacent first clamping plate (105), a support component for preventing foot spasms being provided on the first clamping plate (105), and the movable frame (103) tilting towards the side closer to the first clamping plate (105). The support assembly includes a connecting rod (204), which is fixed to the lower right side of the first clamping plate (105). A first support plate (2) is fixed to the right side of the connecting rod (204). A second support plate (201) is rotatably connected to the upper part of the first support plate (2). When the first support plate (2) and the second support plate (201) are vertical, they together straighten the footboard. A second wedge frame (202) is slidably connected to the right side of the first support plate (2). The top of the second wedge frame (202) is pressed against the adjacent second support plate (201). The bottom of the second wedge frame (202) is pressed against the bed (1). A second spring (203) is fixed between the second wedge frame (202) and the adjacent first support plate (2). The patient's foot is pressed against the left side of the first support plate (2) and the second support plate (201). The first clamp (105) and the second clamp (106) work together to clamp and fix the patient's ankle. Then, the telescopic rod of the control cylinder (102) is shortened, causing the moving frame (103) to slide to the upper left, thereby causing the slide frame (104) to move to the upper left, which in turn causes the first clamp (105) to move to the upper left, causing the patient's knee to bend upward. Then, the telescopic rod of the control cylinder (102) is extended, causing the moving frame ( 103) Slide to the lower right, thereby causing the slide (104) to move to the lower right, which in turn causes the first splint (105) to move to the lower right, so that the patient's knee straightens downward. In this way, the patient's leg continuously performs bending and straightening movements, which plays a role in exercising the leg. During the above exercise process, the first splint (105) moves to the upper left, causing the connecting rod (204) to move to the upper left, which in turn causes the first support plate (2) to move to the upper left, which in turn causes the second support plate (201) and the second wedge frame (202) to move. Moving to the upper left, when the second wedge frame (202) disengages from the bed (1), the second spring (203), which is in a compressed state, returns to its original position, causing the second wedge frame (202) to slide downward along the first support plate (2). The second wedge frame (202) no longer supports the second support plate (201). Under the natural bending action of the foot, the second support plate (201) rotates to the right at a certain angle. The first clamping plate (105) moves to the lower right, causing the connecting rod (204) to move to the lower right, thereby moving the first support plate (2). Move to the lower right, thereby causing the second support plate (201) and the second wedge frame (202) to move to the lower right. When the second wedge frame (202) contacts the bed (1), the bed (1) squeezes the second wedge frame (202) to slide upward along the first support plate (2), the second spring (203) is compressed, and the second wedge frame (202) squeezes the second support plate (201) to rotate to the left and reset, so that the second support plate (201) pushes the foot straight. In this way, the patient's leg is intermittently straightened to prevent foot spasms.

2. The limb rehabilitation assistive device for stroke patients according to claim 1, characterized in that: The locking assembly includes a first wedge (107) which is slidably connected to a second clamping plate (106). The second clamping plate (106) is used to lock the adjacent first clamping plate (105). A first spring (108) is fixed between the first wedge (107) and the adjacent second clamping plate (106).

3. The limb rehabilitation assistive device for stroke patients according to claim 2, characterized in that: It also includes air cylinders (3) symmetrically distributed front and back. The air cylinders (3) symmetrically distributed front and back are all fixed to the upper right side of the support (101). A piston rod (301) is slidably connected inside the air cylinder (3). An elastic telescopic component (302) is fixed between the piston rod (301) and the moving frame (103). An air tube (303) is fixed between the piston rod (301) and the adjacent first clamping plate (105). The air tube (303) is connected to the adjacent air cylinder (3). The air tube (303) is set as a flexible tube. The air tube (303) is connected to an air cushion (304). Through the pulling movement between the air cylinder (3) and the piston rod (301), the air cushion (304) is intermittently pumped and deflated, which accelerates the blood circulation in the legs. The air cushion (304) is located between the adjacent first clamping plate (105) and the second clamping plate (106). The movable frame (103) slides to the upper left, and the piston rod (301) moves to the left along the air cylinder (3) via the elastic telescopic component (302), so that the gas in the air cylinder (3) is pressed into the air cushion (304) through the air tube (303), causing the air cushion (304) to expand and compress the legs. The movable frame (103) slides to the lower right, and the piston rod (301) moves to the right along the air cylinder (3) via the elastic telescopic component 302, so that the gas in the air cushion (304) is drawn into the air cylinder (3) through the air tube (303), causing the air cushion (304) to deflate and release the legs, accelerating blood circulation in the legs.

4. A limb rehabilitation assistive device for stroke patients according to claim 3, characterized in that: It also includes a motor (403), which is fixed to the bracket (101). The output shaft of the motor (403) is fixed to a first screw (402). The first screw (402) is threaded to a symmetrically distributed movable plate (401). The movable plate (401) is slidably connected to the bracket (101). The movable plate (401) is fixed to a fixed rod. The fixed rod is slidably connected to a pull plate (4). The pull plate (4) is limited to the adjacent connecting rod (204).

5. A limb rehabilitation assistive device for stroke patients according to claim 4, characterized in that: It also includes a third spring (5), which is fixed between the slide (104) and the movable frame (103). The support (101) is rotatably connected to the push frame (501), the push frame (501) is tightly fitted with the support (101), and the slide (104) and the push frame (501) are pressed together.

6. A limb rehabilitation assistive device for stroke patients according to claim 5, characterized in that: It also includes a magnet (502), which is fixed to the push frame (501). The bracket (101) is fixed to a first fixing plate (503) and a second fixing plate (504). The first fixing plate (503) and the second fixing plate (504) are both magnetically attracted to the magnet (502).

7. A limb rehabilitation assistive device for stroke patients according to claim 6, characterized in that: It also includes a pressing rod (6), which is fixed to the pulling plate (4). The bracket (101) is slidably connected to symmetrically distributed wedge plates (601), which are pressed together with the adjacent pressing rod (6).

8. A limb rehabilitation assistive device for stroke patients according to claim 7, characterized in that: It also includes symmetrically distributed second screws (602), which are rotatably connected to the bracket (101). The second screws (602) are threadedly connected to the adjacent wedge plate (601).

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