A limb function exercise device for use after geriatric vascular diseases

Abstract

The present invention relates to the technical field of limb function exercise, in particular to a limb function exercise device for use after elderly vascular diseases, including a bottom plate, one end of the top surface of the bottom plate is fixedly provided with a seat cushion, and it is characterized in that: two sliding grooves are opened at the other end of the top surface of the bottom plate, a sliding plate is arranged above the two sliding grooves, both sides of the two sliding plates are slidably connected with guide rails, guide grooves are opened on the guide rails, and all the guide rails are fixedly connected with the top of the bottom plate; a pedal is hinged on the top surface of the sliding plate, and a first torsion spring is sleeved on the hinge shaft of the pedal and the sliding plate; during the process that a vascular disease patient pushes the pedal to move to the side away from the seat cushion, relative movement occurs between the lower leg of the vascular disease patient and the extrusion rod, so that the extrusion rod can push the blood accumulated in the veins on both sides of the lower leg of the vascular disease patient to flow back towards the thigh direction, emptying the veins. By reversely pushing the blood on both sides of the lower leg of the vascular disease patient, it is beneficial to dredge the meridians of the lower leg, promote blood circulation, and play a role in promoting blood circulation and removing blood stasis.

Description

Technical Field

[0001] The present invention relates to the field of limb function exercise, and particularly to a limb function exercise device for use after elderly vascular diseases. Background Art

[0002] Common lower limb vascular diseases mainly include lower limb arteriosclerosis obliterans, acute arterial embolism of the lower limb, varicose veins of the lower limb, etc.; the rehabilitation process of vascular diseases is long, especially for the elderly with inconvenient lower limb activities due to illness, and the rehabilitation treatment generally adopts exercise rehabilitation therapy. However, during the exercise process, it will cause the lower limbs of the elderly to be prone to congestion, which is not conducive to the rehabilitation of vascular diseases and increases the difficulty of rehabilitation.

[0003] Some invention patents related to limb function exercise are disclosed in the prior art. The Chinese patent with the application number 201611091508.2 discloses a leg muscle exercise device, which includes a base, a swing seat and a pedal mechanism are arranged on the upper part of the base, and the swing seat and the pedal mechanism are arranged opposite to each other; the swing seat includes a bracket and a seat surface arranged on the upper part of the bracket, the bracket includes a pair of first ear plates and a pair of second ear plates arranged on the upper part of the base, a long leg is hinged to the upper part of the first ear plate, a short leg is hinged to the upper part of the second ear plate, connecting ear plates are arranged at the four corners of the lower part of the seat surface, two of the four connecting ear plates are hinged to the long leg through a long leg hinge shaft, the other two are hinged to the short leg through a short leg hinge shaft, and the two ends of the long leg hinge shaft are also connected with a long leg telescopic mechanism.

[0004] For users suffering from vascular diseases, especially the elderly suffering from varicose veins of the lower limbs, when using the exercise device, the calves are prone to congestion, resulting in swelling and soreness on both sides of the calves. However, the existing lower limb exercise devices can only play a simple exercise role when in use and are difficult to be applicable to the elderly suffering from varicose veins of the lower limbs. In view of this, we propose a limb function exercise device for use after elderly vascular diseases. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a limb function exercise device for use after elderly vascular diseases.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a limb function exercise device for use after elderly vascular diseases, including a bottom plate, one end of the top surface of the bottom plate is fixedly provided with a seat cushion, and it is characterized in that: two chutes are opened at the other end of the top surface of the bottom plate, a sliding plate is arranged above the two chutes, both sides of the two sliding plates are slidably connected with guide rails, guide grooves are opened on the guide rails, and all the guide rails are fixedly connected to the top of the bottom plate;

[0007] A pedal is hinged to the top surface of the skateboard. A first torsion spring is sleeved on the hinge shaft between the pedal and the skateboard. One end of the first torsion spring is fixed to the pedal, and the other end of the first torsion spring is fixed to the skateboard;

[0008] An angle adjustment mechanism is arranged on the top surface of the skateboard. The angle adjustment mechanism is used to adjust the inclination angle of the pedal. A pulling mechanism is arranged at the bottom of the skateboard. The pulling mechanism is used to pull the skateboard towards the side close to the seat cushion;

[0009] Two sliding frames are symmetrically arranged on both sides of each skateboard. The sliding frames are slidably connected to the top surface of the bottom plate. A fixed frame is arranged on the side of the sliding frame away from the skateboard. The fixed frame is fixed to the top surface of the bottom plate. A linear drive mechanism is arranged between the fixed frame and the sliding frame. The linear drive mechanism is used to linearly drive the sliding frame to slide on the bottom plate;

[0010] A U-shaped extrusion rod is slidably inserted on the outer wall of the sliding frame. Elastic support mechanisms are arranged at both ends of the extrusion rod. The elastic support mechanisms are used to elastically support the extrusion rod. Limiting rings are sleeved and fixed at both ends of the extrusion rod. A guiding mechanism is arranged on the skateboard. When the skateboard moves, the guiding mechanism is used to push and guide the extrusion rod to both sides of the skateboard in advance.

[0011] Preferably, the angle adjustment mechanism includes a positioning plate and an adjustment plate. The positioning plate is fixed to the top surface of the skateboard. A screw is threadedly connected to the positioning plate. The end of the screw is rotatably connected to the adjustment plate. The bottom surface of the adjustment plate is in sliding contact with the bottom plate, and the top surface of the adjustment plate is in contact with the bottom surface of the pedal.

[0012] Preferably, the pulling mechanism includes a fixing plate and a fixing block. The fixing plate is fixed to the bottom surface of the skateboard. The bottom of the fixing plate penetrates through the sliding groove and extends out. The fixing block is arranged below the seat cushion. The fixing block is fixed to the bottom surface of the bottom plate. An elastic pulling rope is jointly fixed between the fixing block and the fixing plate.

[0013] Preferably, the elastic support mechanism includes a groove. The groove is opened at both ends of the extrusion rod. A sliding rod is inserted into the groove. A first spring is jointly fixed between the sliding rod and the inner wall of the groove. The sliding rod is fixed to the outer wall of the fixed frame.

[0014] Preferably, the guiding mechanism includes two inclined plates. The two inclined plates are symmetrically fixed to the top surface of the skateboard. A connecting plate is jointly fixed between the two inclined plates. Extension plates are fixed to the sides of the two inclined plates away from the connecting plate.

[0015] Preferably, the linear drive mechanism includes an electric cylinder and two push switches, the electric cylinder is fixed on a fixed frame, the end of the piston rod of the electric cylinder is fixed on a sliding frame, the two push switches are electrically connected to the electric cylinder, and the two push switches are respectively fixed at both ends of the slide.

[0016] Preferably, a U-shaped block with an opening downward is provided below the limit ring, and the bottom of the U-shaped block is fixed to the top surface of the bottom plate, and a positioning pin is inserted on the top surface of the U-shaped block, and the positioning pin passes through the U-shaped block and extends out, and a second spring is fixed between the bottom of the positioning pin and the bottom plate, and an arc-shaped positioning strip is fixed on the top surface of the positioning pin, and one side of the positioning strip is in contact with the limit ring, and a slope is provided at the top edge of the side of the positioning strip away from the limit ring, and a yield rod is fixed on the side of the limit ring close to the sliding frame, and a cancellation positioning mechanism is provided on one side of all the positioning pins. When the slide plate moves to the side away from the seat cushion, the slide plate is linked to the corresponding cancellation positioning mechanism to cancel the positioning of the positioning strip and the limit ring.

[0017] Preferably, the positioning cancellation mechanism includes a through groove, a pushing bar, an inclined groove, and a guide surface, the inclined groove is provided on the side wall of the positioning pin, the pushing bar is slidably connected to the top surface of the bottom plate, a pushing pin is fixed on one side of the pushing bar, the pushing pin is inserted into the inside of the inclined groove, the through groove is provided on the side wall of the guide rail and is connected with the guide groove, one end of the pushing bar passes through the sliding frame and the through groove and then extends into the inside of the guide groove, the guide surface is provided on both sides of the end of the slide facing the pushing bar, a gas spring is horizontally arranged below the pushing bar, the fixed end of the gas spring is fixed to the bottom plate, and the movable end of the gas spring is fixed to the pushing bar.

[0018] Preferably, the push bar is hinged to a flip plate at one end inside the guide groove, and a second torsion spring is sleeved on the hinge axis of the flip plate and the push bar, one end of the second torsion spring is fixed to the side wall of the push bar, and the other end of the second torsion spring is fixed to the side wall of the flip plate, and a limiting plate is fixed to the side of the push bar away from the slide plate, and the limiting plate is in contact with one side of the flip plate.

[0019] Preferably, the outer side of the extrusion rod is rotatably sleeved with flexible cotton, a rotating ring is fixed on the top surface of the flexible cotton, the inner side of the rotating ring is rotatably connected to a positioning ring, a motor is fixed to the bottom of the positioning ring, a first gear is fixed to the end of the output shaft of the motor, a second gear is meshed with the outer side of the first gear, and the outer ring surface of the second gear is fixed to the inner wall of the rotating ring.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Under the elastic pushing action of the elastic support mechanism, the extrusion rod always has a tendency to move towards the side close to the pedal. While the pedal moves towards the side away from the seat cushion, the extrusion rods on both sides of the skateboard are pushed and guided in advance through the guiding mechanism, so that the extrusion rods move towards both sides of the pedal, avoiding the extrusion rods from hindering the movement of the pedal and affecting the exercise of patients with vascular diseases.

[0022] 2. When the skateboard passes through the extrusion rod, under the elastic pushing action of the elastic support mechanism, the extrusion rod can move towards the side close to the pedal in time, so as to clamp the two sides of the calves of the patients with vascular diseases. During the process that the patients with vascular diseases continue to push the pedal towards the side away from the seat cushion, under the clamping action of the extrusion rod, relative movement occurs between the calves of the patients with vascular diseases and the extrusion rod, so that the extrusion rod moves towards the side close to the thighs relative to the calves. Furthermore, under the clamping and extrusion action, it can push the blood accumulated in the veins on both sides of the calves of the patients with vascular diseases to flow back towards the thighs, emptying the veins. By reversely pushing the blood on both sides of the calves of the patients with vascular diseases, it is beneficial to dredge the calf meridians, promote blood circulation, and play a role in promoting blood circulation and removing blood stasis.

[0023] 3. When the skateboard moves to the end of the chute, the skateboard linkage linear drive mechanism pulls the sliding frame to move towards the side away from the calves of the patients with vascular diseases. Furthermore, under the limiting action of the limiting ring, the extrusion rod is driven by the sliding frame to move towards the side away from the calves of the patients with vascular diseases. On the one hand, when the calves of the patients with vascular diseases move towards the side close to the seat cushion, it is avoided that the extrusion rod contacts the calves of the patients with vascular diseases, resulting in the extrusion rod pushing the blood on the calves towards the feet, causing the situation of blood accumulation in the veins of the patients with vascular diseases. On the other hand, by moving the extrusion rod away from the calves of the patients with vascular diseases, it is beneficial to avoid the extrusion rod from hindering the reset of the skateboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall structural schematic diagram of the present invention;

[0025] Figure 2 is the overall (another perspective) structural schematic diagram of the present invention;

[0026] Figure 3 is of the present invention Figure 2 structural schematic diagram of part A therein;

[0027] Figure 4 is of the present invention Figure 3 structural schematic diagram of part B therein;

[0028] Figure 5 is the overall (bottom view angle) structural schematic diagram of the present invention;

[0029] Figure 6 is of the present invention Figure 5Schematic diagram of the structure at position C in

[0030] Figure 7 Schematic diagram of the structure after the first overall section of the present invention;

[0031] Figure 8 Of the present invention Figure 7 Schematic diagram of the structure at position D in

[0032] Figure 9 Of the present invention Figure 7 Schematic diagram of the structure at position E in

[0033] Figure 10 Of the present invention Figure 9 Schematic diagram of the structure at position F in

[0034] Figure 11 Schematic diagram of the structure at the skateboard of the present invention;

[0035] Figure 12 Schematic diagram of the structure after the second overall section of the present invention;

[0036] Figure 13 Of the present invention Figure 12 Schematic diagram of the structure at position G in

[0037] Figure 14 Schematic diagram of the structure after the third overall section of the present invention;

[0038] Figure 15 Of the present invention Figure 14 Schematic diagram of the structure at position H in

[0039] Figure 16 Of the present invention Figure 15 Schematic diagram of the structure at position I in

[0040] Figure 17 Schematic diagram of the structure after the section of the rotating ring on the extrusion rod of the present invention.

[0041] In the figure: 1. bottom plate; 2. seat cushion; 3. slide groove; 4. slide plate; 5. guide rail; 6. guide groove; 7. pedal; 8. first torsion spring; 9. sliding frame; 10. fixed frame; 11. extrusion rod; 12. limiting ring; 13. positioning plate; 14. adjustment plate; 15. screw; 16. fixed plate; 17. fixing block; 18. elastic pull rope; 19. groove; 20. sliding rod; 21. first spring; 22. inclined plate; 23. connecting plate; 24. extension plate 25. Electric cylinder; 26. Press switch; 27. U-shaped block; 28. Locating pin; 29. Second spring; 30. Positioning bar; 31. Yield rod; 32. Through slot; 33. Push bar; 34. Inclined slot; 35. Guide surface; 36. Push pin; 37. Flip plate; 38. Second torsion spring; 39. Limiting plate; 40. Flexible cotton; 41. Rotating ring; 42. Positioning ring; 43. Motor; 44. First gear; 45. Second gear; 46. Gas spring. DETAILED DESCRIPTION

[0042] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0043] like Figures 1 to 17A limb function exercise device for use after elderly vascular diseases, comprising a bottom plate 1, with a cushion 2 fixed at one end of the top surface of the bottom plate 1. It is characterized in that: two sliding grooves 3 are provided at the other end of the top surface of the bottom plate 1, a sliding plate 4 is arranged above the two sliding grooves 3, both sides of the two sliding plates 4 are slidably connected with guide rails 5, and guide grooves 6 are provided on the guide rails 5, and all the guide rails 5 are fixedly connected to the top of the bottom plate 1; a pedal 7 is hinged on the top surface of the sliding plate 4, a first torsion spring 8 is sleeved on the hinge shaft of the pedal 7 and the sliding plate 4, one end of the first torsion spring 8 is fixed on the pedal 7, and the other end of the first torsion spring 8 is fixed on the sliding plate 4; an angle adjustment mechanism is arranged on the top surface of the sliding plate 4, and the angle adjustment mechanism is used to adjust the inclination angle of the pedal 7, and a pulling mechanism is arranged at the bottom of the sliding plate 4, and the pulling mechanism is used to pull the sliding plate 4 towards the side close to the cushion 2; two sliding frames 9 are symmetrically arranged on both sides of each sliding plate 4, the sliding frames 9 are slidably connected to the top surface of the bottom plate 1, a fixed frame 10 is arranged on the side of the sliding frame 9 away from the sliding plate 4, the fixed frame 10 is fixed on the top surface of the bottom plate 1, and a linear drive mechanism is arranged between the fixed frame 10 and the sliding frame 9, and the linear drive mechanism is used to linearly drive the sliding frame 9 to slide on the bottom plate 1; a U-shaped extrusion rod 11 is slidably inserted on the outer wall of the sliding frame 9, elastic support mechanisms are arranged at both ends of the extrusion rod 11, and the elastic support mechanisms are used to elastically support the extrusion rod 11, limiting rings 12 are sleeved and fixed at both ends of the extrusion rod 11, and a guiding mechanism is arranged on the sliding plate 4, and when the sliding plate 4 moves, the guiding mechanism is used to push and guide the extrusion rod 11 to both sides of the sliding plate 4 in advance; during work, for users suffering from vascular diseases, especially the elderly suffering from varicose veins in the lower extremities, when using the exercise device, the calves are prone to congestion, resulting in swelling and soreness on both sides of the calves. However, the existing lower limb exercise devices can only play a simple exercise role when in use and are difficult to be applicable to the elderly suffering from varicose veins in the lower extremities. This embodiment of the present invention can solve the above problems. The specific working method is as follows. First, the inclination angle of the pedal 7 can be adjusted through the angle adjustment mechanism to make the inclination angle of the pedal 7 suitable for the feet of the vascular disease patient. After adjusting the angle of the pedal 7, the vascular disease patient sits on the cushion 2, places the feet on the pedal 7, and pushes the pedal 7 towards the side away from the cushion 2, thereby driving the sliding plate 4 at the bottom of the pedal 7 to slide between the two guide rails 5. When the sliding plate 4 slides to the farthest end, the vascular disease patient relaxes the leg strength, and the pulling mechanism automatically pulls the sliding plate 4 towards the side close to the cushion 2. Repeating this way can achieve the function of limb function exercise;

[0044] And under the elastic pushing action of the elastic support mechanism, the extrusion rod 11 always has a tendency to move towards the side close to the pedal 7. While the pedal 7 moves away from the seat cushion 2, the extrusion rods 11 on both sides of the skateboard 4 are pushed and guided in advance through the guiding mechanism, so that the extrusion rods 11 move towards both sides of the pedal 7, avoiding the extrusion rods 11 from hindering the movement of the pedal 7 and affecting the exercise of patients with vascular diseases;

[0045] After the skateboard 4 passes through the extrusion rod 11, under the elastic pushing action of the elastic support mechanism, the extrusion rod 11 can move towards the side close to the pedal 7 in time, so as to clamp both sides of the calves of the patients with vascular diseases. During the process that the patients with vascular diseases continue to push the pedal 7 to move away from the seat cushion 2, under the clamping action of the extrusion rod 11, relative movement occurs between the calves of the patients with vascular diseases and the extrusion rod 11, so that the extrusion rod 11 moves towards the side close to the thighs relative to the calves. Furthermore, under the clamping and extrusion action, it can push the blood accumulated in the veins on both sides of the calves of the patients with vascular diseases to flow back towards the thighs, empty the veins. By reversely pushing the blood on both sides of the calves of the patients with vascular diseases, it is beneficial to dredge the calf meridians, promote blood circulation, play the role of promoting blood circulation and removing blood stasis, and further facilitate the rehabilitation of patients with vascular diseases;

[0046] When the skateboard 4 moves to the end of the sliding groove 3, the skateboard 4 drives the linear drive mechanism to pull the sliding frame 9 to move away from the calves of the patients with vascular diseases. Furthermore, under the limiting action of the limiting ring 12, the extrusion rod 11 is driven by the sliding frame 9 to move away from the calves of the patients with vascular diseases. On the one hand, when the calves of the patients with vascular diseases move towards the side close to the seat cushion 2, it is avoided that the extrusion rod 11 contacts the calves of the patients with vascular diseases, resulting in the extrusion rod 11 pushing the blood on the calves towards the feet, causing the accumulation of blood in the veins of the patients with vascular diseases, and squeezing and massaging the leg blood vessels, further promoting the rehabilitation of the patients with vascular diseases. On the other hand, by moving the extrusion rod 11 away from the calves of the patients with vascular diseases, it is beneficial to avoid the extrusion rod 11 from hindering the reset of the skateboard 4 and avoid the situation that the extrusion rod 11 squeezes the blood vessels during the return journey, causing the blood to flow towards the calves, so that the device can further adapt to the patients with vascular diseases and avoid the adverse effects of the extrusion rod 11 on the rehabilitation of the patients with vascular diseases.

[0047] As a further embodiment of the present invention, the angle adjustment mechanism includes a positioning plate 13 and an adjustment plate 14. The positioning plate 13 is fixed on the top surface of the sliding plate 4. A screw rod 15 is threadedly connected to the positioning plate 13. The end of the screw rod 15 is rotatably connected to the adjustment plate 14. The bottom surface of the adjustment plate 14 is in sliding contact with the bottom plate 1, and the top surface of the adjustment plate 14 is in contact with the bottom surface of the pedal 7. During operation, under the elastic force of the first torsion spring 8, the pedal 7 always has a tendency to flip towards the side close to the sliding plate 4. Before using the device, the position of the adjustment plate 14 under the pedal 7 can be adjusted by rotating the screw rod 15, so as to lift the pedal 7 to different flipping angles, and then adjust the inclination angle of the pedal 7, which is beneficial to make the inclination angle of the pedal 7 adapt to the feet of different vascular disease patients, and further enable the elderly to adjust to a comfortable posture for rehabilitation exercises, avoiding the situation of compressing blood vessels during exercise, and thus being beneficial to promoting the rehabilitation of elderly vascular disease patients.

[0048] As a further embodiment of the present invention, the pulling mechanism includes a fixed plate 16 and a fixed block 17. The fixed plate 16 is fixed on the bottom surface of the sliding plate 4. The bottom of the fixed plate 16 penetrates through the sliding groove 3 and extends out. The fixed block 17 is arranged below the seat cushion 2. The fixed block 17 is fixed on the bottom surface of the bottom plate 1. An elastic pulling rope 18 is jointly fixed between the fixed block 17 and the fixed plate 16. During operation, when a vascular disease patient uses his leg to push the pedal 7, causing the sliding plate 4 to move away from the seat cushion 2, the sliding plate 4 pulls one end of the elastic pulling rope 18 through the fixed plate 16 fixed at the bottom, so that the elastic pulling rope 18 elongates to generate elastic force. When the vascular disease patient relaxes the leg strength, under the elastic pulling action of the elastic pulling rope 18, the sliding plate 4 can move towards the side close to the seat cushion 2, thus completing the pulling and reset function.

[0049] As a further embodiment of the present invention, the elastic support mechanism includes a groove 19 opened at both ends of the extrusion rod 11. A sliding rod 20 is inserted into the groove 19, and a first spring 21 is fixedly arranged between the sliding rod 20 and the inner wall of the groove 19. The sliding rod 20 is fixed on the outer wall of the fixed frame 10. During operation, under the elastic force of the first spring 21, the extrusion rod 11 is pushed to move away from the sliding rod 20, and the end of the extrusion rod 11 is limited by the limiting ring 12 to prevent the extrusion rod 11 from detaching from the sliding frame 9. Moreover, under the elastic force of the first spring 21, the extrusion rod 11 can extrude the legs of the vascular disease patient. On the one hand, under the extrusion of the extrusion rod 11, the legs of the vascular disease patient move away from the seat cushion 2, which is beneficial to pushing the blood accumulated in the veins on both sides of the calf of the vascular disease patient back towards the thigh direction through the extrusion of the extrusion rod 11, emptying the veins, reversely pushing the blood on both sides of the calf of the vascular disease patient, facilitating the dredging of the calf meridians, promoting blood circulation, and playing a role in promoting blood circulation and removing blood stasis. On the other hand, through elastic extrusion, it is beneficial for the extrusion rod 11 to adapt to vascular disease patients with different leg thicknesses.

[0050] As a further embodiment of the present invention, the guiding mechanism includes two inclined plates 22 symmetrically fixed on the top surface of the sliding plate 4. A connecting plate 23 is fixedly arranged between the two inclined plates 22, and extension plates 24 are fixed on one side of each of the two inclined plates 22 away from the connecting plate 23. During operation, during the process of the sliding plate 4 moving away from the seat cushion 2, the inclined plates 22 come into contact with the extrusion rod 11 before the pedal 7. As the inclined plates 22 move away from the seat cushion 2, under the guiding action of the inclined surface on one side of the inclined plates 22, the extrusion rod 11 is pushed to move towards both sides of the pedal 7 in advance, and the extrusion rod 11 is further limited by the extension plates 24. When the extrusion rod 11 detaches from the extension plates 24, it can bypass the pedal 7 and directly extrude the calves of the vascular disease patients, which is beneficial to avoiding the extrusion rod 11 from obstructing the movement of the pedal 7 during the process of moving away from the seat cushion 2.

[0051] As a further embodiment of the present invention, the linear drive mechanism includes an electric cylinder 25 and two pressure switches 26. The electric cylinder 25 is fixed on the fixed frame 10, the end of the piston rod of the electric cylinder 25 is fixed on the sliding frame 9, the two pressure switches 26 are both electrically connected to the electric cylinder 25, and the two pressure switches 26 are respectively fixed at both ends of the sliding plate 4. During operation, when the sliding plate 4 moves to the end of the guide rail 5 away from the seat cushion 2, the pressure switch 26 at one end of the sliding plate 4 contacts the inner wall of the guide groove 6, and the electric cylinder 25 is started through the pressure switch 26 to pull the sliding frame 9 to move away from the calf of the vascular disease patient. Furthermore, under the limiting action of the limiting ring 12, the extrusion rod 11 is driven by the sliding frame 9 to move away from the calf of the vascular disease patient. On the one hand, when the calf of the vascular disease patient moves towards the side close to the seat cushion 2, it is avoided that the extrusion rod 11 contacts the calf of the vascular disease patient, resulting in the extrusion rod 11 pushing the blood on the calf towards the foot, causing blood accumulation in the veins of the vascular disease patient. On the other hand, by moving the extrusion rod 11 away from the calf of the vascular disease patient, it is beneficial to avoid the extrusion rod 11 hindering the reset of the sliding plate 4. When the sliding plate 4 moves to the end of the guide rail 5 close to the seat cushion 2, the pressure switch 26 at the other end of the sliding plate 4 contacts the inner wall of the guide groove 6, and the electric cylinder 25 can be started through the pressure switch 26 to timely push the sliding frame 9 to reset.

[0052] As a further embodiment of the present invention, a U-shaped block 27 with an opening downward is provided below the limiting ring 12, and the bottom of the U-shaped block 27 is fixed on the top surface of the bottom plate 1. A positioning pin 28 is inserted on the top surface of the U-shaped block 27, and the positioning pin 28 passes through the U-shaped block 27 and extends out. A second spring 29 is fixed between the bottom of the positioning pin 28 and the bottom plate 1, and an arc-shaped positioning strip 30 is fixed on the top surface of the positioning pin 28. One side of the positioning strip 30 is in contact with the limiting ring 12, and a slope is provided on the top edge of the side of the positioning strip 30 away from the limiting ring 12. The limiting ring 12 is close to the side of the sliding frame 9. A yield rod 31 is fixed, and one side of all the positioning pins 28 is provided with a cancellation positioning mechanism. When the slide plate 4 moves to the side away from the seat cushion 2, the slide plate 4 links the corresponding cancellation positioning mechanism to cancel the positioning of the positioning strip 30 and the limiting ring 12; when working, when the sliding frame 9 moves to the side away from the calf of the patient with vascular disease, the massage rod, the limiting ring 12, and the yield rod 31 are synchronously driven to move to the side close to the fixed frame 10, so that the limiting ring 12 moves to a position close to the inclined surface of the positioning strip 30. When the limiting ring 12 pushes the inclined surface of the positioning strip 30, under the guidance of the inclined surface, the limiting ring 12 pushes the positioning strip 30 30 moves downward and compresses the second spring 29. A gap is created between the limiting ring 12 and the sliding frame 9 by setting the giving rod 31, so that after the limiting ring 12 passes through the limiting ring 12, the positioning bar 30 can enter the gap in time under the elastic force of the second spring 29 to limit one side of the limiting ring 12. When the linear drive mechanism drives the sliding frame 9 to reset, the limiting ring 12 is limited by the positioning bar 30, and then the massage rod is limited to prevent the massage rod from moving in the direction close to the calf of the patient with vascular disease. When the slider moves back to the opposite direction away from the seat cushion 2, the positioning bar 30 is cancelled. The mechanism cancels the positioning of a single positioning bar 30 and a limiting ring 12 in advance, so that the extrusion rod 11 pops out only after the slide plate 4 moves to the corresponding extrusion rod 11 position, and directly bounces onto the extension plate 24, which is beneficial to avoid the need to push multiple extrusion rods 11 through the inclined plate 22, resulting in an increase in the movement resistance of the slide plate 4, affecting the exercise of elderly patients with vascular diseases. By reducing the resistance of the slide plate 4 to move toward the side away from the seat cushion 2, the driving force required to push the slide plate 4 is reduced, which is beneficial to reduce the driving force of the feet of elderly patients with vascular diseases, so that the device can be better adapted to elderly patients.

[0053] As a further embodiment of the present invention, the positioning mechanism includes a through groove 32, a pushing bar 33, an inclined groove 34, and a guide surface 35. The inclined groove 34 is provided on the side wall of the positioning pin 28, and the pushing bar 33 is slidably connected to the top surface of the bottom plate 1. A pushing pin 36 is fixed to one side of the pushing bar 33, and the pushing pin 36 is inserted into the inside of the inclined groove 34. The through groove 32 is provided on the side wall of the guide rail 5 and is connected to the guide groove 6. One end of the pushing bar 33 passes through the sliding frame 9 and the through groove 32 and then extends into the inside of the guide groove 6. The guide surface 35 is provided on both sides of the end of the slide plate 4 facing the pushing bar 33. A gas spring 46 is horizontally provided below the pushing bar 33. The fixed end of the gas spring 46 is fixed to the bottom plate 1, and the movable end of the gas spring 46 is fixed to the pushing bar When the slide plate 4 moves to the side away from the seat cushion 2, the guide surface 35 of the side wall of the slide plate 4 first contacts the pushing bar 33. Under the guidance of the guide surface 35, the pushing bar 33 is promptly pushed to the side close to the fixed frame 10, so that the pushing pin 36 moves with the pushing bar 33. Under the cooperative guidance of the pushing pin 36 and the inclined groove 34, the positioning pin 28 and the positioning bar 30 can be pulled downward and disengaged from the limiting ring 12, thereby completing the function of canceling the limit. By canceling the limit of the massage rod after the slide plate 4 moves to the massage rod position, the massage rod is popped out, which is conducive to avoiding the need to push multiple extrusion rods 11 through the inclined plate 22, resulting in increased movement resistance of the slide plate 4, affecting the exercise of elderly patients with vascular diseases.

[0054] As a further embodiment of the present invention, one end of the pushing bar 33 located inside the guide groove 6 is hinged to a flip plate 37, and a second torsion spring 38 is sleeved on the hinge axis of the flip plate 37 and the pushing bar 33. One end of the second torsion spring 38 is fixed to the side wall of the pushing bar 33, and the other end of the second torsion spring 38 is fixed to the side wall of the flip plate 37. A limiting plate 39 is fixed to the side of the pushing bar 33 away from the slide plate 4, and the limiting plate 39 is in contact with one side of the flip plate 37. When working, when the slide plate 4 moves toward the side close to the seat cushion 2, the pushing bar 33 will push the slide plate 4. The movement is hindered by setting a flip plate 37. When the skateboard 4 contacts the flip plate 37, the flip plate 37 can flip over to make way, thereby avoiding hindering the movement of the skateboard 4. When the skateboard 4 moves to the side away from the seat cushion 2, the guide surface 35 on the skateboard 4 pushes the flip plate 37. Under the elastic force of the second torsion spring 38, the flip plate 37 has a tendency to flip toward the side close to the limit plate 39. The flip plate 37 is limited by the limit plate 39, so that the flip plate 37 can cooperate with the guide surface 35 to complete the function of pushing the push bar 33.

[0055] As a further embodiment of the present invention, a flexible cotton 40 is rotatably sleeved on the outer side of the extrusion rod 11. A rotating ring 41 is fixed on the top surface of the flexible cotton 40. The inner side of the rotating ring 41 is rotatably connected to a positioning ring 42. A motor 43 is fixed at the bottom of the positioning ring 42. The end of the output shaft of the motor 43 is fixed with a first gear 44. A second gear 45 is sleeved and meshed on the outer side of the first gear 44. The outer ring surface of the second gear 45 is fixed on the inner wall of the rotating ring 41. During operation, by starting the motor 43, the output shaft of the motor 43 drives the first gear 44 to rotate. The first gear 44 drives the second gear 45 to rotate. The second gear 45 drives the rotating ring 41 and the flexible cotton 40 to rotate synchronously. By controlling the rotation direction of the second gear 45, the blood on the calf of a vascular disease patient is pushed towards the thigh direction, which is beneficial to promoting the reverse pushing effect of the extrusion rod 11 and further dredging the calf meridians.

[0056] Working principle of the present invention:

[0057] First, the inclination angle of the pedal 7 can be adjusted through the angle adjustment mechanism to make the inclination angle of the pedal 7 suitable for the feet of the vascular disease patient. After adjusting the angle of the pedal 7, the vascular disease patient sits on the cushion 2, places the feet on the pedal 7, and pushes the pedal 7 to move away from the cushion 2, thereby driving the slide plate 4 at the bottom of the pedal 7 to slide between the two guide rails 5. When the slide plate 4 slides to the farthest end, the vascular disease patient relaxes the leg strength, and the slide plate 4 is automatically pulled towards the side close to the cushion 2 through the pulling mechanism. By repeating this process, the function of limb function exercise can be achieved. And under the elastic pushing action of the elastic support mechanism, the extrusion rod 11 always has a tendency to move towards the side close to the pedal 7. While the pedal 7 moves away from the cushion 2, the extrusion rods 11 on both sides of the slide plate 4 are pushed and guided in advance through the guiding mechanism, so that the extrusion rods 11 move towards both sides of the pedal 7, avoiding the extrusion rods 11 from hindering the movement of the pedal 7 and affecting the exercise of the vascular disease patient. When the slide plate 4 passes through the extrusion rod 11, the extrusion rod 11 can move towards the side close to the pedal 7 in time under the elastic pushing action of the elastic support mechanism, so as to clamp both sides of the calf of the vascular disease patient. During the process that the vascular disease patient continues to push the pedal 7 to move away from the cushion 2, under the clamping action of the extrusion rod 11, relative movement occurs between the calf of the vascular disease patient and the extrusion rod 11, so that the extrusion rod 11 moves towards the side close to the thigh relative to the calf, and then under the clamping and extrusion action, it can push the blood accumulated in the veins on both sides of the calf of the vascular disease patient to flow back towards the thigh, emptying the veins. By reversely pushing the blood on both sides of the calf of the vascular disease patient, it is beneficial to dredge the calf meridians, promote blood circulation, play the role of promoting blood circulation and removing blood stasis, and further facilitate the recovery of the vascular disease patient. When the slide plate 4 moves to the end of the chute 3, the slide plate 4 drives the sliding frame 9 to move away from the calf of the vascular disease patient by linking with the linear drive mechanism. Then, under the limiting action of the limiting ring 12, the extrusion rod 11 is driven to move away from the calf of the vascular disease patient through the sliding frame 9. On the one hand, when the calf of the vascular disease patient moves towards the side close to the cushion 2, it is avoided that the extrusion rod 11 contacts the calf of the vascular disease patient, resulting in the extrusion rod 11 pushing the blood on the calf towards the foot direction, causing the accumulation of blood in the veins of the vascular disease patient, and squeezing and massaging the leg blood vessels, further promoting the recovery of the vascular disease patient. On the other hand, by moving the extrusion rod 11 away from the calf of the vascular disease patient, it is beneficial to avoid the extrusion rod 11 from hindering the reset of the slide plate 4 and prevent the extrusion rod 11 from squeezing the blood vessels during the return journey, causing the blood to flow towards the calf, so that the device can further adapt to the vascular disease patient and avoid the extrusion rod 11 from having an adverse impact on the recovery of the vascular disease patient.

[0058] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for limb function exercise after elderly vascular disease, comprising a bottom plate (1), one end of the top surface of the bottom plate (1) is fixedly provided with a cushion (2), and it is characterized in that: On the other end of the top surface of the bottom plate (1), two sliding grooves (3) are provided. Above the two sliding grooves (3), there is a sliding plate (4). On both sides of the two sliding plates (4), guide rails (5) are slidably connected. Guide grooves (6) are provided on the guide rails (5), and all the guide rails (5) are fixedly connected to the top of the bottom plate (1). On the top surface of the sliding plate (4), a pedal (7) is hinged. A first torsion spring (8) is sleeved on the hinge shaft of the pedal (7) and the sliding plate (4). One end of the first torsion spring (8) is fixed on the pedal (7), and the other end of the first torsion spring (8) is fixed on the sliding plate (4). On the top surface of the sliding plate (4), an angle adjustment mechanism is provided, which is used to adjust the inclination angle of the pedal (7). At the bottom of the sliding plate (4), a pulling mechanism is provided, which is used to pull the sliding plate (4) towards the side close to the seat cushion (2). On both sides of each sliding plate (4), two sliding frames (9) are symmetrically arranged. The sliding frames (9) are slidably connected to the top surface of the bottom plate (1). On the side of the sliding frame (9) away from the sliding plate (4), a fixed frame (10) is provided. The fixed frame (10) is fixed on the top surface of the bottom plate (1). A linear drive mechanism is provided between the fixed frame (10) and the sliding frame (9), which is used to linearly drive the sliding frame (9) to slide on the bottom plate (1). A U-shaped pressing rod (11) is slidably inserted on the outer wall of the sliding frame (9). Elastic support mechanisms are provided at both ends of the pressing rod (11), which are used to elastically support the pressing rod (11). Limiting rings (12) are sleeved and fixed at both ends of the pressing rod (11). A guiding mechanism is provided on the sliding plate (4). When the sliding plate (4) moves, the guiding mechanism is used to push and guide the pressing rod (11) to both sides of the sliding plate (4) in advance. The linear drive mechanism includes an electric cylinder (25) and two pressing switches (26). The electric cylinder (25) is fixed on the fixed frame (10). The end of the piston rod of the electric cylinder (25) is fixed on the sliding frame (9). The two pressing switches (26) are electrically connected to the electric cylinder (25), and the two pressing switches (26) are respectively fixed at both ends of the sliding plate (4).

2. The limb function exercise device for use after elderly vascular diseases according to claim 1, wherein: The angle adjustment mechanism includes a positioning plate (13) and an adjustment plate (14). The positioning plate (13) is fixed on the top surface of the sliding plate (4). A screw rod (15) is threadedly connected to the positioning plate (13). The end of the screw rod (15) is rotatably connected to the adjustment plate (14). The bottom surface of the adjustment plate (14) is in sliding contact with the bottom plate (1), and the top surface of the adjustment plate (14) is in contact with the bottom surface of the pedal (7).

3. The limb function exercise device for use after geriatric vascular diseases according to claim 1, characterized in that: The pulling mechanism includes a fixing plate (16) and a fixing block (17), wherein the fixing plate (16) is fixed on the bottom surface of the slide plate (4), the bottom of the fixing plate (16) passes through the slide groove (3) and extends out, the fixing block (17) is arranged below the seat cushion (2), the fixing block (17) is fixed on the bottom surface of the base plate (1), and an elastic pulling rope (18) is fixed between the fixing block (17) and the fixing plate (16).

4. The limb function exercise device for use after geriatric vascular disease according to claim 1, wherein: The elastic support mechanism comprises a groove (19), the groove (19) being formed at both ends of the extrusion rod (11), a sliding rod (20) being inserted into the interior of the groove (19), a first spring (21) being fixed between the sliding rod (20) and the inner wall of the groove (19), and the sliding rod (20) being fixed to the outer wall of the fixed frame (10).

5. The limb function exercise device for use after elderly vascular diseases according to claim 4, characterized in that: The guide mechanism comprises two inclined plates (22), the two inclined plates (22) being symmetrically fixed on the top surface of the slide plate (4), a connecting plate (23) being fixed between the two inclined plates (22), and an extension plate (24) being fixed on one side of the two inclined plates (22) away from the connecting plate (23).

6. The limb function exercise device for use after geriatric vascular diseases according to claim 1, wherein: A U-shaped block (27) with an opening downward is provided below the limiting ring (12), the bottom of the U-shaped block (27) is fixed on the top surface of the bottom plate (1), a positioning pin (28) is inserted on the top surface of the U-shaped block (27), the positioning pin (28) passes through the U-shaped block (27) and extends out, a second spring (29) is fixed between the bottom of the positioning pin (28) and the bottom plate (1), an arc-shaped positioning strip (30) is fixed on the top surface of the positioning pin (28), and the positioning pin (28) is inserted into the top surface of the U-shaped block (27). One side of the strip (30) contacts the limiting ring (12), and a bevel is provided at the top edge of the side of the positioning strip (30) away from the limiting ring (12). A yielding rod (31) is fixed on the side of the limiting ring (12) close to the sliding frame (9), and a positioning cancellation mechanism is provided on one side of all the positioning pins (28). When the slide plate (4) moves to the side away from the seat cushion (2), the slide plate (4) links the corresponding positioning cancellation mechanism to cancel the positioning of the positioning strip (30) and the limiting ring (12).

7. The limb function exercise device for use after geriatric vascular diseases according to claim 6, wherein: The canceling positioning mechanism includes a through groove (32), a pushing bar (33), an inclined groove (34), and a guiding surface (35). The inclined groove (34) is formed on the side wall of the positioning pin (28). The pushing bar (33) is slidably connected to the top surface of the bottom plate (1). A pushing pin (36) is fixed to one side of the pushing bar (33), and the pushing pin (36) is inserted into the inclined groove (34). The through groove (32) is formed on the side wall of the guide rail (5) and communicates with the guide groove (6). One end of the pushing bar (33) passes through the sliding frame (9) and the through groove (32) and then extends into the guide groove (6). The guiding surfaces (35) are formed on both sides of one end of the sliding plate (4) facing the pushing bar (33). A gas spring (46) is horizontally arranged below the pushing bar (33). The fixed end of the gas spring (46) is fixed to the bottom plate (1), and the movable end of the gas spring (46) is fixed to the pushing bar (33).

8. The limb function exercise device for use after elderly vascular diseases according to claim 7, wherein: One end of the pushing bar (33) located inside the guide groove (6) is hinged with a turning plate (37). A second torsion spring (38) is sleeved on the hinge shaft of the turning plate (37) and the pushing bar (33). One end of the second torsion spring (38) is fixed to the side wall of the pushing bar (33), and the other end of the second torsion spring (38) is fixed to the side wall of the turning plate (37). A limiting plate (39) is fixed to the side of the pushing bar (33) away from the sliding plate (4), and the limiting plate (39) is in contact with one side of the turning plate (37).

9. The limb function exercise device for use after geriatric vascular diseases according to claim 1, characterized in that: A flexible cotton (40) is rotatably sleeved on the outer side of the extrusion rod (11). A rotating ring (41) is fixed to the top surface of the flexible cotton (40). A positioning ring (42) is rotatably connected to the inner side of the rotating ring (41). A motor (43) is fixed to the bottom of the positioning ring (42). A first gear (44) is fixed to the end of the output shaft of the motor (43). A second gear (45) is sleeved and meshed with the outer side of the first gear (44), and the outer ring surface of the second gear (45) is fixed to the inner wall of the rotating ring (41).

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