Rehabilitation assisting device based on leg nursing

Abstract

The invention relates to the technical field of rehabilitation instruments, in particular to a rehabilitation assisting device based on leg nursing. The nursing bed comprises a bearing base frame and a nursing lying plate, the nursing lying plate is fixed to the top of the bearing base frame, and a fixed empty frame seat is fixed to one end of the top of the bearing base frame. Through the structural design of the leg exercise mechanism, the regulation and control mechanism and the matching mechanism, the device can accurately adapt to the rehabilitation process of a leg postoperative patient, the basic requirements of rehabilitation training of the patient are met, meanwhile, the exercise enthusiasm of the patient can be stimulated through voice reminding and voice encouragement in the exercise process, and the rehabilitation training effect of the patient is improved. Through the structural design of the auxiliary mechanism, the device can assist in exercising the leg strength of the patient for recovery, meanwhile, the rehabilitation exercise intensity of the patient can be reminded, cooperation with the matching mechanism is achieved, a proper exercise mode is provided for the patient, and the defects of existing rehabilitation equipment are effectively overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of rehabilitation equipment, and in particular to a rehabilitation auxiliary device based on leg care. Background Art

[0002] Rehabilitation, in essence, embodies the dynamic process of "recovery," with the core goal of restoring the body to its original normal or healthy state. In medicine, when the human body is attacked by disease or sustains accidental injury, the functions of various parts of the body often suffer varying degrees of impairment, leading to dysfunction. Rehabilitation medicine, a specialized discipline developed precisely to address this situation, integrates various medical knowledge and technical means to enable patients with functional impairments caused by illness and injury to restore normal physiological function to the greatest extent possible, or to achieve the closest possible return to normal.

[0003] For example, after a leg injury, surgical treatment and subsequent rehabilitation are crucial. During this phase, patients undergo a series of highly targeted rehabilitation exercises, which are crucial for restoring leg function. However, rehabilitation training is not a one-time process and often requires significant time and effort from the patient. Furthermore, the training process may be accompanied by pain and discomfort. Therefore, to ensure the effectiveness of rehabilitation training, specialized rehabilitation training equipment is required.

[0004] For example, a lower limb training and rehabilitation device based on orthopedic care with the publication (announcement) number CN114869689A relates to the field of medical rehabilitation devices, including a mounting base, the upper surface of the mounting base is provided with support columns, the tops of multiple support columns are provided with the same reclining chair, the upper surface of the mounting base is provided with a U-shaped frame, the upper surface of the U-shaped frame is provided with a second electric push rod, the output end of the second electric push rod passes through the inner top wall of the U-shaped frame and is provided with a mounting plate.

[0005] In summary, the following technical problems exist in the existing technology: post-operative patients often feel heavy-hearted due to the tremendous pain they endure and the concerns about future rehabilitation effects. Deep down, they lack the confidence and motivation to exercise. At the same time, the above-mentioned existing technologies and existing rehabilitation training devices are mostly single-function, only providing basic training assistance and lacking effective incentive mechanisms. Under such circumstances, it is difficult for patients to gain a sense of accomplishment from the boring and monotonous training process, and it is difficult to effectively stimulate their enthusiasm for exercise. For this reason, we propose a rehabilitation assistive device based on leg care. Summary of the Invention

[0006] The purpose of the present invention is to provide a rehabilitation auxiliary device based on leg care to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A rehabilitation assistive device based on leg care includes a supporting base and a nursing lying board, wherein a nursing lying board is fixed on the top of the supporting base, a fixed empty frame seat is fixed at one end of the top of the supporting base, a protective shell is fixed on the side of the fixed empty frame seat close to the nursing lying board, a leg exercise mechanism is installed between the fixed empty frame seat and the supporting base, and the leg exercise mechanism is used to assist patients in rehabilitation exercises, and the leg exercise mechanism includes an action component and a connecting component, and two positioning square cylinders are fixed on the top of the supporting base and close to the end of the nursing lying board, and an action component is installed on the top of the two positioning square cylinders, and a connecting component is installed on the inner side of the action component.

[0009] Preferably, the action component includes a telescopic rod, a wedge-shaped movable block, a force-applying connecting bracket, an L-shaped force rod, a mounting support, a bearing seat, an axial rod and a driving gear. The top of the positioning square cylinder is slidably connected to the telescopic rod, the top of the telescopic rod is fixed with a wedge-shaped movable block, one side of the wedge-shaped movable block is slidably connected to the force-applying connecting bracket, one end of the two force-applying connecting brackets is fixed with a built-in shaft, the outer side of the built-in shaft is rotatably connected to the mounting support, the mounting support is fixed to the bearing base, one end of one of the force-applying connecting brackets is fixed with an L-shaped force rod, the top of the mounting support is fixed with a bearing seat, the inner side of the bearing seat is rotatably connected to two parallel axial rods, the outer side of the axial rod is fixed with a driving gear, and the two driving gears are meshed with each other.

[0010] The transmission gear of said sliding arm is connected with said sliding arm to said sliding arm support said sliding arm, said sliding arm having a round shank and a round shank connected to said sliding arm.

[0011] Preferably, a regulating mechanism is installed on one side of the bearing seat, and the regulating mechanism is used to adjust the rotation amplitude of the force-applying connecting bracket.

[0012] Preferably, the regulating mechanism includes a connecting box, a double-headed rod and a shift rod, a connecting box is fixed on one side of the bearing seat, one end of the connecting box is slidably connected to the double-headed rod, both ends of one end of the double-headed rod are fixed with limit rods corresponding to the position of one of the force-applying connecting brackets, the other end of the double-headed rod is fixed with a shift rod, and the shift rod is slidably connected to the inner side of the connecting box.

[0013] Preferably, a matching mechanism is assembled between the protective shell and the first cylindrical rod, and the matching mechanism is used to monitor the rotation frequency of the first cylindrical rod.

[0014] Preferably, the mating mechanism includes a cam, a guide rod, a first pressure sensor, an intelligent controller and a voice announcer, a cam is fixed to the top of the first cylindrical rod, a linear track is opened on the top of the linear mounting plate, the inner side of the linear track is slidably connected to the guide rod, a first pressure sensor is fixed to one end of the inner side of the linear track, a small spring is connected to the outside of the first pressure sensor, one end of the small spring is fixed to the guide rod, the end of the guide rod away from the small spring is rotatably connected to a roller, the roller is in contact with the cam, an intelligent controller and a voice announcer are fixed to the outside of the protective shell, and the intelligent controller is electrically connected to the intelligent controller and the first pressure sensor through a wire.

[0015] Preferably, an auxiliary mechanism is installed between the bearing base and the fixed empty frame seat, and the auxiliary mechanism includes an L-shaped welding rod, a harpoon-shaped rod, a foot force plate, a return spring, a mounting guide rail and a rehabilitation chair. An L-shaped welding rod is fixed to one end of the bearing base, and the top of the L-shaped welding rod is rotatably connected to the harpoon-shaped rod, and foot force plates are fixed at both ends of one end of the harpoon-shaped rod, and return springs are fixed to the bottom of the foot force plates, and one end of the return springs is fixed to the mounting guide rail, and the mounting guide rails are fixed to the bearing base, and a rehabilitation chair is provided on the top of the two mounting guide rails.

[0016] Preferably, the auxiliary mechanism also includes a force-carrying arm, a three-head linkage rod, a transverse shaft, a metal spring, a pawl, a ratchet, an L-shaped indicator needle and a second pressure sensor. Both sides of the middle part of the harpoon-shaped rod are rotatably connected to the force-carrying arm, and the top of the force-carrying arm is rotatably connected to the three-head linkage rod. The inner sides of the two three-head linkage rods are rotatably connected to a transverse shaft, and both ends of the transverse shaft are fixed to the fixed empty frame seat. The two ends of one end of the three-head linkage rod are respectively fixed and rotatably connected with a metal spring and a pawl, and one end of the metal spring is against the top of the pawl, and one end of the two pawls are meshed and connected with a ratchet. The inner sides of the ratchets are rotatably connected to the transverse shaft through a one-way bearing, and an L-shaped indicator needle is fixed on one side of one of the ratchets. A second pressure sensor corresponding to the position of the L-shaped indicator needle is fixed on one side of the inside of the fixed empty frame seat, and the second pressure sensor is electrically connected to the intelligent controller through a wire.

[0017] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.

[0018] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0019] 1. The present invention uses the structural design of the leg exercise mechanism, the regulating mechanism and the cooperating mechanism to enable the device to accurately adapt to the rehabilitation process of patients after leg surgery. While meeting their basic needs for rehabilitation training, it can stimulate the patient's enthusiasm for exercise through voice reminders and voice encouragement during the exercise process, and effectively promote the patient's comprehensive recovery.

[0020] 2. The present invention uses the structural design of the auxiliary mechanism to enable the device to assist in training the patient's leg strength for recovery. At the same time, it can remind the patient of the intensity of the rehabilitation exercise, cooperate with the matching mechanism, and provide the patient with a suitable exercise method, effectively improving the defects of existing rehabilitation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection structure between the load-bearing base and the fixed empty frame seat of the present invention;

[0024] Figure 3This is a schematic diagram of the connection structure between the load-bearing base and the nursing lying board of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between the positioning square tube and the telescopic rod of the present invention;

[0026] Figure 5 It is a schematic cross-sectional view of the fixed hollow frame seat of the present invention;

[0027] Figure 6 Schematic diagram of the connection structure of the force-applying connecting bracket and the L-shaped force rod of the present invention;

[0028] Figure 7 Schematic diagram of the connection structure between the first cylindrical rod and the linear mounting plate of the present invention;

[0029] Figure 8 A schematic diagram of the connection structure between the load-bearing base frame and the mounting guide rail of the present invention;

[0030] Figure 9 Schematic diagram of the connection structure between the force-carrying arm and the three-head linkage rod of the present invention;

[0031] Figure 10 It is a schematic diagram of the connection structure of the three-head linkage rod and the transverse shaft of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] In the figure: 1. Bearing base; 2. Nursing bed; 3. Fixed frame; 4. Protective housing; 5. Positioning square tube; 6. Telescopic rod; 7. Wedge-shaped movable block; 8. Force-applying connecting bracket; 9. L-shaped force rod; 10. Mounting support; 11. Bearing seat; 12. Axis rod; 13. Drive gear; 14. Transmission gear; 15. Ruyi-shaped rod; 16. Oblique swing block; 17. First cylindrical rod; 18. Driving pulley; 19. Linear mounting plate; 20. Driven pulley; 21. Second cylindrical rod; 22. Counterweight pulley 23. Connecting box; 24. Double-headed rod; 25. Driving rod; 26. Cam; 27. Guide rod; 28. First pressure sensor; 29. Intelligent controller; 30. Voice announcer; 31. L-shaped welding rod; 32. Harpoon-shaped rod; 33. Foot force plate; 34. Return spring; 35. Mounting rail; 36. Rehabilitation chair; 37. Force-bearing arm; 38. Three-head linkage rod; 39. Transverse shaft; 40. Metal shrapnel; 41. Pawl; 42. Ratchet; 43. L-shaped indicator needle; 44. Second pressure sensor. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] Example 1

[0036] Reference Figure 1-7 A rehabilitation assistive device based on leg care includes a supporting base 1 and a nursing lying board 2. The nursing lying board 2 is fixed on the top of the supporting base 1, and a fixed empty frame seat 3 is fixed at one end of the top of the supporting base 1. A protective shell 4 is fixed on the side of the fixed empty frame seat 3 close to the nursing lying board 2. A leg exercise mechanism is assembled between the fixed empty frame seat 3 and the supporting base 1. The leg exercise mechanism is used to assist the patient in rehabilitation exercises. The leg exercise mechanism includes an action component and a connecting component. Two positioning square cylinders 5 are fixed on the top of the supporting base 1 and close to the end of the nursing lying board 2. An action component is assembled on the top of the two positioning square cylinders 5, and a connecting component is assembled on the inner side of the action component.

[0037] The action assembly includes a telescopic rod 6, a wedge-shaped movable block 7, a force-applying connection bracket 8, an L-shaped force rod 9, a mounting bracket 10, a bearing seat 11, an axial rod 12 and a driving gear 13. The top of the positioning square tube 5 is slidably connected to the telescopic rod 6, the top of the telescopic rod 6 is fixed with a wedge-shaped movable block 7, and one side of the wedge-shaped movable block 7 is slidably connected to the force-applying connection bracket 8. One end of the two force-applying connection brackets 8 is fixed with a built-in shaft, and the outer side of the built-in shaft is rotatably connected to the mounting bracket 10, which is fixed to the bearing base 1. An L-shaped force rod 9 is fixed to one end of one of the force-applying connecting brackets 8, and a bearing seat 11 is fixed to the top of the mounting support 10. The inner side of the bearing seat 11 is rotatably connected to two parallel axial rods 12, and the outer sides of the axial rods 12 are fixed with driving gears 13. The two driving gears 13 are meshed and connected. A slope is provided on one side of the wedge-shaped movable block 7, and a horizontal groove is provided on the side of the wedge-shaped movable block 7 away from the slope. A cylindrical pin is slidably connected to the inner side of the horizontal groove, and the cylindrical pin is rotatably connected to the force-applying connecting bracket 8.

[0038] The connecting assembly includes a transmission gear 14, a Ruyi-shaped rod 15, an oblique swing block 16, a first cylindrical rod 17, a driving pulley 18, a linear mounting plate 19, a driven pulley 20, a second cylindrical rod 21 and a counterweight wheel 22. One end of the axis rod 12 passes through the bearing seat 11 and is fixed with a transmission gear 14. The bottom of the transmission gear 14 is meshed with the top of one end of the force-applying connecting bracket 8. One end of the L-shaped force rod 9 is rotatably connected to the Ruyi-shaped rod 15. One end of the Ruyi-shaped rod 15 is rotatably connected to the oblique swing block 16. One end of the oblique swing block 16 is fixed with the first cylindrical rod 17. The first cylindrical rod 17 is fixed to the first cylindrical rod 17. A driving pulley 18 is fixed to the middle of the outer side of the column 17, and a linear mounting plate 19 is fixed to the outer side of both ends of the first cylindrical rod 17. One end of the linear mounting plate 19 is fixed to the inner side of the protective shell 4. The outer side of the driving pulley 18 is connected to the driven pulley 20 through a belt, and the inner side of the driven pulley 20 is fixed to the second cylindrical rod 21. Both ends of the second cylindrical rod 21 are rotatably connected to the inner side of the fixed empty frame seat 3. A counterweight wheel 22 is fixed to the outer side of the second cylindrical rod 21. When the counterweight wheel 22 rotates, the patient can exercise his leg strength due to its large weight.

[0039] One side of the bearing seat 11 is equipped with a regulating mechanism, which is used to adjust the rotation range of the force-applying connecting bracket 8. The regulating mechanism includes a connecting box 23, a double-headed rod 24 and a shifting rod 25. A connecting box 23 is fixed on one side of the bearing seat 11. One end of the connecting box 23 is slidably connected to the double-headed rod 24. Both ends of one end of the double-headed rod 24 are fixed with a limit rod corresponding to the position of one of the force-applying connecting brackets 8. The other end of the double-headed rod 24 is fixed with a shifting rod 25. The shifting rod 25 is slidably connected to the inner side of the connecting box 23. When one of the force-applying connecting brackets 8 is between the two limit rods on the double-headed rod 24, the rotation range of the force-applying connecting bracket 8 is limited. When the wedge-shaped movable block 7 drives the force-applying connecting bracket 8 to rotate, the range of rotation of the L-shaped force-bearing rod 9 driven by the force-applying connecting bracket 8 can only be achieved by pushing or pulling the oblique swing block 16 to rotate less than 180° through the Ruyi-shaped rod 15; by pulling the dial rod 25, the dial rod 25 drives the double-headed rod 24 to retract toward the inside of the connecting box 23, so that the limit rod releases the limit on the force-applying connecting bracket 8, and the rotation range of the force-applying connecting bracket 8 can be increased, thereby causing the Ruyi-shaped rod 15 to push or pull the oblique swing block 16 to perform a complete circular motion.

[0040] A matching mechanism is assembled between the protective housing 4 and the first cylindrical rod 17, and the matching mechanism is used to monitor the rotation frequency of the first cylindrical rod 17. The matching mechanism includes a cam 26, a guide rod 27, a first pressure sensor 28, an intelligent controller 29 and a voice announcer 30. The voice announcer 30 and the intelligent controller 29 adopt the CP1 H series PLC intelligent controller and the WTN6 series voice announcer. Taking the CP1H series PLC intelligent controller and the WTN6 series voice announcer as examples, the control relationship between them is explained: the output end of the PLC intelligent controller is connected to the trigger end of the voice announcer, for example, through a level triggering method. When the output end of the PLC outputs a high level, the voice announcer is triggered to work; a cam 26 is fixed on the top of the first cylindrical rod 17, and a linear track is opened on the top of the linear mounting plate 19. The inner side of the linear track is slidably connected to the guide rod 27, and one end of the inner side of the linear track is fixed. There is a first pressure sensor 28, and a small spring is connected to the outside of the first pressure sensor 28. One end of the small spring is fixed to the guide rod 27. The guide rod 27 is connected to the end away from the small spring and is rotated to have a roller. The roller is in contact with the cam 26. An intelligent controller 29 and a voice announcer 30 are fixed to the outside of the protective shell 4. The intelligent controller 29 is electrically connected to the intelligent controller 29 and the first pressure sensor 28 through a wire. When the guide rod 27 drives the cam 26 to rotate, the raised end of the cam 26 pushes the roller, causing the guide rod 27 to move along the inner side of the linear track.

[0041] Example 2

[0042] Further optimize Example 1, specifically, as Figure 8As shown, an auxiliary mechanism is assembled between the bearing base 1 and the fixed empty frame seat 3, and the auxiliary mechanism includes an L-shaped welding rod 31, a harpoon-shaped rod 32, a foot force plate 33, a return spring 34, a mounting guide rail 35 and a rehabilitation chair 36. An L-shaped welding rod 31 is fixed to one end of the bearing base 1, and the top of the L-shaped welding rod 31 is rotatably connected to the harpoon-shaped rod 32. Both ends of one end of the harpoon-shaped rod 32 are fixed with foot force plates 33, and the bottom of the foot force plates 33 are fixed with return springs 34. One end of the return springs 34 is fixed with mounting guide rails 35, and the mounting guide rails 35 are fixed to the bearing base 1. A rehabilitation chair 36 is provided on the top of the two mounting guide rails 35, and an electric module is provided at the bottom of the rehabilitation chair 36. The electric module is connected to The strip track groove connection on the inner side of the rehabilitation chair 36 can adjust the position of the rehabilitation chair 36. When leg strength training is needed, the rehabilitation chair 36 is moved to a position close to the foot force plate 33. Then the patient sits on the rehabilitation chair 36 with his feet on the foot force plate 33. By applying pressure through the legs, the foot force plate 33 squeezes the reset spring 34 to contract, overcoming the elastic force of the reset spring 34 to achieve training. At the same time, the foot force plate 33 drives the harpoon-shaped rod 32 to rotate along the top of the L-shaped welded rod 31, and then the harpoon-shaped rod 32 pulls the force-carrying arm 37, so that the force-carrying arm 37 pulls the three-head linkage rod 38 to rotate, and under the action of the pawl 41, the ratchet 42 rotates intermittently in one direction.

[0043] Example 3

[0044] Further optimize Example 2, specifically, as Figure 9-10As shown, the auxiliary mechanism also includes a guide bearing arm 37, a three-head linkage rod 38, a transverse shaft 39, a metal spring 40, a pawl 41, a ratchet 42, an L-shaped indicator needle 43 and a second pressure sensor 44. Both sides of the middle of the harpoon-shaped rod 32 are rotatably connected to the guide bearing arm 37, and the top of the guide bearing arm 37 is rotatably connected to the three-head linkage rod 38. The inner side of the two three-head linkage rods 38 is rotatably connected to a transverse shaft 39, and both ends of the transverse shaft 39 are fixed to the empty frame seat 3. The two ends of one end of the three-head linkage rod 38 are respectively fixed and rotatably connected with a metal spring 40 and a pawl 41, and one end of the metal spring 40 is against the top of the pawl 41. One end of each pawl 41 is meshed with a ratchet 42. The inner side of the ratchet 42 is rotatably connected to the transverse shaft 39 through a one-way bearing. An L-shaped indicator needle 43 is fixed on one side of one of the ratchet wheels 42. A second pressure sensor corresponding to the position of the L-shaped indicator needle 43 is fixed on one side of the fixed empty frame seat 3. The second pressure sensor 44 is electrically connected to the intelligent controller 29 through a wire. When the guide bearing arm 37 pushes the three-head linkage rod 38 upward, a relative rotation is generated between the three-head linkage rod 38 and the ratchet 42. At this time, the three-head linkage rod 38 drives the pawl 41 to swing once, and under the elastic limit of one end of the metal spring 40, pushes the ratchet 42 to rotate once, and at the same time drives the L-shaped indicator needle 43 to rotate. When one end of the L-shaped indicator needle 43 contacts the second pressure sensor 44, the second pressure sensor 44 is subjected to pressure and transmits a signal to the intelligent controller 29. The intelligent controller 29 controls the voice announcer 30 to start, and the voice announcer 30 issues a warning reminder to remind the patient of the exercise intensity; it can be understood that the end of the L-shaped indicator needle 43 is made of rubber, which can apply a certain pressure to the second pressure sensor 44, and can be separated from the second pressure sensor 44 as the ratchet 42 continues to rotate, without causing motion interference.

[0045] From the above, we can know that:

[0046] The present invention addresses the following technical issues: Post-operative patients often feel heavy-hearted due to the immense pain they endure and the concerns about future rehabilitation outcomes. They also lack the confidence and motivation to exercise. Meanwhile, the aforementioned existing technologies and rehabilitation training devices are mostly single-function, merely providing basic training assistance and lacking effective incentive mechanisms. Under such circumstances, it is difficult for patients to gain a sense of accomplishment from the boring and monotonous training process, and it is also difficult to effectively stimulate their enthusiasm for exercise. The technical solutions of the aforementioned embodiments are employed. At the same time, the implementation process of the aforementioned technical solutions is as follows:

[0047] During use, the patient lies on the nursing reclining board 2, and then the patient's knees are aligned with one side of the wedge-shaped movable block 7. Then, force is applied to one of the legs so that the leg pushes one of the wedge-shaped movable blocks 7. Under the guidance of the inclined surface on one side of the wedge-shaped movable block 7, the wedge-shaped movable block 7 moves upward, and then the wedge-shaped movable block 7 pulls the telescopic rod 6 to move upward along the inner side of the positioning square tube 5. The wedge-shaped movable block 7 drives the force-applying connecting bracket 8 to rotate, so that the force-applying connecting bracket 8 can drive the L-shaped force rod 9 to rotate. Because the force-applying connecting bracket 8 is meshed with the transmission gear 14, the transmission gear 14 is fixed to the axis rod 12, and the two driving gears 13 are meshed and connected, so that the two driving gears 13 can rotate. When the L-shaped force rod 9 rotates, it can push or pull the oblique swing block 16 through the Ruyi-shaped rod 15 to rotate, thereby making the oblique swing block 16 drive the first cylindrical rod 17 and the driving pulley 18 to rotate synchronously. Because the driving pulley 18 is connected to the driven pulley 20 by a belt, and the driven pulley 20 is fixed to the second cylindrical rod 21, and the second cylindrical rod 21 is fixed to the counterweight wheel 22, the counterweight wheel 22 can rotate synchronously, thereby realizing the process of rehabilitation exercise;

[0048] During the exercise, the first cylindrical rod 17 drives the cam 26 to rotate, so that the raised end of the cam 26 pushes the roller, and then the guide straight rod 27 can move along the inner side of the linear track by squeezing the small spring, so that the first pressure sensor 28 continuously receives the pressure signal and transmits it to the intelligent controller 29 for processing. Every time the first pressure sensor 28 receives two signals, it represents that the first cylindrical rod 17 rotates one circle. The transmission ratio between the active pulley 18 and the counterweight wheel 22 can be used to calculate how many circles the counterweight wheel 22 has rotated. The number of circles is the patient's exercise volume. The threshold value of the number of times the pressure signal is received is set by the intelligent controller 29. When the threshold value is reached, the intelligent controller 29 controls the voice announcer 30 to start, and verbally motivates and cheers the patient, injecting a steady stream of exercise motivation into the patient, greatly improving the patient's rehabilitation effect and enthusiasm.

[0049] Through the above configuration, this application can certainly solve the above technical problems and achieve the following technical effects:

[0050] 1. The present invention uses the structural design of the leg exercise mechanism, the regulating mechanism and the cooperating mechanism to enable the device to accurately adapt to the rehabilitation process of patients after leg surgery. While meeting their basic needs for rehabilitation training, it can stimulate the patient's enthusiasm for exercise through voice reminders and voice encouragement during the exercise process, and effectively promote the patient's comprehensive recovery.

[0051] 2. The present invention uses the structural design of the auxiliary mechanism to enable the device to assist in training the patient's leg strength for recovery. At the same time, it can remind the patient of the intensity of the rehabilitation exercise, cooperate with the matching mechanism, and provide the patient with a suitable exercise method, effectively improving the defects of existing rehabilitation equipment.

[0052] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0053] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A rehabilitation assistive device based on leg care, characterized in that: The invention comprises a bearing base (1) and a nursing reclining board (2), wherein the nursing reclining board (2) is fixed to the top of the bearing base (1), a fixed hollow frame seat (3) is fixed to one end of the top of the bearing base (1), a protective shell (4) is fixed to the side of the fixed hollow frame seat (3) close to the nursing reclining board (2), a leg exercise mechanism is assembled between the fixed hollow frame seat (3) and the bearing base (1), and the leg exercise mechanism is used to assist patients in performing rehabilitation exercises, and the leg exercise mechanism comprises an action component and a connection component, and two positioning square cylinders (5) are fixed to the top of the bearing base (1) and close to the end of the nursing reclining board (2), an action component is assembled on the top of the two positioning square cylinders (5), and a connection component is assembled on the inner side of the action component.

2. A rehabilitation assistive device based on leg care according to claim 1, characterized in that: The action assembly comprises a telescopic rod (6), a wedge-shaped movable block (7), a force-applying connecting bracket (8), an L-shaped force rod (9), a mounting support (10), a bearing seat (11), an axial rod (12) and a driving gear (13); the top of each positioning square tube (5) is slidably connected to the telescopic rod (6); the top of each telescopic rod (6) is fixed with a wedge-shaped movable block (7); one side of each wedge-shaped movable block (7) is slidably connected to a force-applying connecting bracket (8); one end of each of the two force-applying connecting brackets (8) is fixed with a A built-in shaft, the outer side of the built-in shaft is rotatably connected to a mounting support (10), the mounting support (10) is fixed to the bearing base (1), one end of one of the force-applying connecting brackets (8) is fixed with an L-shaped force rod (9), the top of the mounting support (10) is fixed with a bearing seat (11), the inner side of the bearing seat (11) is rotatably connected to two parallel axial rods (12), the outer sides of the axial rods (12) are fixed with driving gears (13), and the two driving gears (13) are meshed and connected.

3. A rehabilitation assistive device based on leg care according to claim 2, characterized in that: The connecting assembly comprises a transmission gear (14), a wishful rod (15), an oblique swing block (16), a first cylindrical rod (17), a driving pulley (18), a linear mounting plate (19), a driven pulley (20), a second cylindrical rod (21) and a counterweight wheel (22); one end of the axis rod (12) passes through the bearing seat (11) and is fixed with a transmission gear (14); the bottom of the transmission gear (14) is meshed and connected with the top of one end of the force-applying connecting bracket (8); one end of the L-shaped force rod (9) is rotatably connected to the wishful rod (15); one end of the wishful rod (15) is rotatably connected to the oblique swing block (16); the oblique swing A first cylindrical rod (17) is fixed to one end of the block (16), a driving pulley (18) is fixed to the middle of the outer side of the first cylindrical rod (17), a linear mounting plate (19) is fixed to the outer sides of both ends of the first cylindrical rod (17), one end of each linear mounting plate (19) is fixed to the inner side of the protective shell (4), the outer side of the driving pulley (18) is connected to a driven pulley (20) through a belt, a second cylindrical rod (21) is fixed to the inner side of the driven pulley (20), both ends of the second cylindrical rod (21) are rotatably connected to the inner side of the fixed empty frame seat (3), and a counterweight wheel (22) is fixed to the outer side of the second cylindrical rod (21).

4. A rehabilitation assistive device based on leg care according to claim 3, characterized in that: One side of the bearing seat (11) is equipped with a regulating mechanism, and the regulating mechanism is used to adjust the rotation amplitude of the force-applying connecting bracket (8).

5. A rehabilitation assistive device based on leg care according to claim 4, characterized in that: The regulating mechanism comprises a connecting box (23), a double-headed rod (24) and a shifting rod (25); a connecting box (23) is fixed on one side of the bearing seat (11); one end of the connecting box (23) is slidably connected to the double-headed rod (24); both ends of one end of the double-headed rod (24) are fixed with a limiting rod corresponding to the position of one of the force-applying connecting brackets (8); the other end of the double-headed rod (24) is fixed with a shifting rod (25); and the shifting rod (25) is slidably connected to the inner side of the connecting box (23).

6. The rehabilitation assistive device based on leg care according to claim 3, characterized in that: A matching mechanism is assembled between the protective housing (4) and the first cylindrical rod (17), and the matching mechanism is used to monitor the rotation frequency of the first cylindrical rod (17).

7. The rehabilitation assistive device based on leg care according to claim 6, characterized in that: The matching mechanism comprises a cam (26), a guide rod (27), a first pressure sensor (28), an intelligent controller (29) and a voice announcer (30), wherein the top of the first cylindrical rod (17) is fixed with a cam (26), the top of the linear mounting plate (19) is provided with a linear track, the inner side of the linear track is slidably connected with the guide rod (27), one end of the inner side of the linear track is fixed with the first pressure sensor (28), the outer side of the first pressure sensor (28) is connected with a small spring, one end of the small spring is fixed with the guide rod (27), the end of the guide rod (27) away from the small spring is rotatably connected with a roller, the roller is in contact with the cam (26), the outer side of the protective shell (4) is fixed with an intelligent controller (29) and a voice announcer (30), and the intelligent controller (29) is electrically connected with the intelligent controller (29) and the first pressure sensor (28) through a wire.

8. The rehabilitation assistive device based on leg care according to claim 7, characterized in that: An auxiliary mechanism is assembled between the bearing base (1) and the fixed empty frame seat (3), and the auxiliary mechanism includes an L-shaped welding rod (31), a harpoon-shaped rod (32), a foot-operated force plate (33), a return spring (34), a mounting guide rail (35) and a rehabilitation chair (36). An L-shaped welding rod (31) is fixed to one end of the bearing base (1), and the top of the L-shaped welding rod (31) is rotatably connected to the harpoon-shaped rod (32). Both ends of one end of the harpoon-shaped rod (32) are fixed with a foot-operated force plate (33), and the bottom of the foot-operated force plate (33) is fixed with a return spring (34). One end of the return spring (34) is fixed with a mounting guide rail (35), and the mounting guide rails (35) are fixed to the bearing base (1). A rehabilitation chair (36) is provided at the top of the two mounting guide rails (35).

9. The rehabilitation assistive device based on leg care according to claim 8, characterized in that: The auxiliary mechanism also includes a guide force bearing arm (37), a three-head linkage rod (38), a transverse shaft (39), a metal spring (40), a pawl (41), a ratchet (42), an L-shaped indicator needle (43) and a second pressure sensor (44). Both sides of the middle part of the harpoon-shaped rod (32) are rotatably connected to the guide force bearing arm (37), and the top of the guide force bearing arm (37) is rotatably connected to the three-head linkage rod (38). The inner sides of the two three-head linkage rods (38) are rotatably connected to a transverse shaft (39). Both ends of the transverse shaft (39) are fixed to the fixed empty frame seat (3). The two ends of one end of the three-head linkage rod (38) are rotatably connected to the fixed empty frame seat (3). A metal spring (40) and a ratchet (41) are fixedly and rotatably connected respectively, and one end of the metal spring (40) is against the top of the ratchet (41), and one end of each of the two ratchet pawls (41) is meshedly connected with a ratchet (42), and the inner side of each of the ratchet wheels (42) is rotatably connected to the transverse shaft (39) through a one-way bearing, and an L-shaped indicator needle (43) is fixed on one side of one of the ratchet wheels (42), and a second pressure sensor (44) corresponding to the position of the L-shaped indicator needle (43) is fixed on one side of the interior of the fixed empty frame seat (3), and the second pressure sensor (44) is electrically connected to the intelligent controller (29) through a wire.

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