Auxiliary limb exercise device for critical nursing

By designing auxiliary limb exercise devices for critical care including pedals, guardrails and safety auxiliary components, the problem of limited exercise freedom in the prior art is solved, and the patient's diverse exercise movements and double-layer safety guarantees are achieved. Patients of different heights.

CN119236380APending Publication Date: 2025-01-03CHONGQING MEDICAL UNIVERSITY AFFILIATED THIRD HOSPITAL(FANGDA HOSPITAL)
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Patent Information

Application Number
CN202411610188.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-01-03

AI Technical Summary

Technical Problem

The existing auxiliary limb exercise device for intensive care care limits the patient's freedom of exercise when ensuring safety, making it difficult to complete exercise movements such as turning and bending.

Method used

A training device including pedals, guardrails, sliding rods, mobile protective components and safety auxiliary components was designed. Through structures such as sliding grooves, connecting rods, retracting shells and straps, the patient's limb exercise freedom and emergency will be achieved. Braking capability.

Benefits of technology

Patients can freely complete movements such as turning and bent in the exercise device, and at the same time, they have double-layer safety guarantees to prevent falling and are suitable for patients of different heights.

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Abstract

The invention discloses an auxiliary limb exercise device for critical nursing, and belongs to the field of medical instruments, the auxiliary limb exercise device comprises a pedal, a protective frame is arranged at the top of the pedal, the protective frame is composed of a bottom frame, middle frames and a top frame, the bottom frame is fixedly mounted at four corners of the top of the pedal, and the top of the bottom frame is movably provided with a group of middle frames; a top frame is movably installed at the tops of the four sets of middle frames, a set of sliding rods are movably installed between the portions, on the two sides of the top of the pedal, of the middle frames, a movable protection component is arranged between the two sets of sliding rods, and the movable protection component is composed of two sets of movable pieces and a set of protection rings; through the arrangement of the pedal, the protection frame, the sliding rod, the sliding rail groove, the moving part, the protection ring and other devices, the aim that the number of limb exercise parts of a patient is large can be achieved, the patient can freely complete limb exercise such as turning around and bending down in the exercise device, meanwhile, the emergency braking capacity is achieved, and the safety of the patient during exercise is guaranteed.
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Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly to an auxiliary limb exercise device for critical care. Background Art

[0002] The recovery of critically ill patients does not only rely on drugs and surgery, but also focuses on physical therapy, occupational therapy, physical therapy and psychological therapy, and advocates self-functional training. In view of the importance and significant characteristics of rehabilitation medicine to human health care, rehabilitation medicine has the same important status as preventive medicine and clinical medicine, and has become one of the three major components of modern medicine. Therefore, rehabilitation medicine is also called "the third medicine";

[0003] Existing limb exercise assisting devices for critical care have many restrictive components set on the patient's body to ensure the safety of the patient during exercise. Although this can improve the safety of the exercise device during use, it also leads to many restrictions on the patient's limb exercise. For example, in order to prevent the patient from falling during exercise, most exercise devices have restrictive components set on the patient's waist to prevent the patient from falling. However, this also makes it difficult for the patient to complete exercises such as turning and bending during exercise due to the presence of the waist restrictive components.

[0004] Therefore, a kind of auxiliary limb exercise device for critical care is specially proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an auxiliary limb exercise device for critical care, which can achieve the purpose of exercising multiple limb parts of the patient. The patient can freely complete limb exercises such as turning and bending in the exercise device, while ensuring the safety of the patient during exercise.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An auxiliary limb exercise device for critical care includes a pedal, a guard frame is arranged on the top of the pedal, and the guard frame consists of a bottom frame, a middle frame and a top frame. The bottom frame is fixedly installed at four corners of the top of the pedal, and a group of middle frames are movably installed on the top of each of the bottom frames, and top frames are movably installed on the tops of four groups of middle frames.

[0008] A group of sliding rods are movably installed between the middle frames on both sides of the top of the pedal, and a movable protective component is arranged between the two groups of sliding rods. The movable protective component consists of two groups of moving parts and a group of protective rings. The two groups of moving parts are movably installed on the two groups of sliding rods respectively, and the protective ring is movably installed between the two groups of sliding rods through the two groups of moving parts.

[0009] Furthermore, the movable part is composed of a group of mounting covers, two groups of movable wheels and a group of auxiliary wheels. The two groups of movable wheels are movably mounted at the upper end position inside the mounting cover, and the auxiliary wheels are movably mounted at the lower end position inside the mounting cover. A rotating rod is movably mounted inside the mounting cover between the two groups of movable wheels, and a brake block is movably mounted on the surface of the rotating rod. A connecting rod is fixedly mounted at one end of the mounting cover close to the protective ring, and the mounting cover is movably mounted on the sliding rod through the two groups of movable wheels and the group of auxiliary wheels. The two groups of movable parts have the same structure and are symmetrical with the protective ring as the center point.

[0010] Furthermore, a sliding groove is provided on the outer ring surface of the protective ring, a connecting ring is fixedly installed on the top of the protective ring, and one end of the connecting rod close to the protective ring extends into the sliding groove.

[0011] Furthermore, the upper and lower ends of the sliding rod are provided with sliding rail grooves, the brake block is located between the two groups of moving wheels, and the center of gravity of the brake block is lowered after being installed through the rotating rod, the two groups of moving wheels and a group of auxiliary wheels are respectively located in the sliding rail grooves provided at the upper and lower ends of the sliding rod, the bottom of the brake block extends into the sliding rail groove, and the brake block does not contact the sliding rail groove when in a vertical state, and the protective ring can be rotated and deflected left and right through the sliding groove and the connecting rod.

[0012] Furthermore, a mounting frame is fixedly installed on the top of the top frame, and a safety auxiliary component is provided at the bottom of the mounting frame, and the safety auxiliary component includes a winding shell fixedly installed on the bottom of the mounting shell, a reel is movably installed inside the winding shell, a ratchet is provided on the right side surface of the reel, a clutch lever is movably installed on the right side of the reel and located on the left side of the ratchet, a cam is movably installed on the inside of the winding shell and located at the right front end of the reel, a sliding pin is fixedly installed on the right side surface of the cam, a ratchet is movably installed on the outer surface of the sliding pin, a webbing is movably sleeved on the surface of the reel, the bottom of the webbing extends out of the winding shell, and a binding strap is fixedly connected to the bottom of the webbing.

[0013] Furthermore, the ratchet wheel and the ratchet teeth arranged on the right side of the reel are on the same line, and teeth meshing with the ratchet teeth are arranged on the side of the ratchet wheel close to the ratchet teeth, and the clutch lever can touch the cam when it is offset due to centrifugal force.

[0014] Furthermore, a series belt is fixedly connected to the bottom of the binding strap, a sleeve is fixedly installed on the bottom of the series belt, the series belt is sleeved on the connecting ring at the top of the protective ring through the sleeve, and the top of the protective ring is connected to the series belt through the connecting ring and the sleeve, which will not restrict the rotation of the protective ring.

[0015] Furthermore, the protective ring is in a detachable state, and can be removed from the two groups of connecting rods after being detached. The two groups of connecting rods are always in a straight line after the protective rings are installed through the sliding grooves.

[0016] Furthermore, adjusting components are provided at the connections between the bottom frame and the middle frame and between the middle frame and the top frame, and the adjusting components include adjusting rods fixedly installed at the bottom of the middle frame and the top frame, telescopic grooves are provided inside the bottom frame and the middle frame, and positioning tooth grooves are provided on the right side walls of the telescopic grooves, buttons are movably installed on the right side surfaces of the middle frame and the top frame, and a linkage plate is movably installed inside the adjusting rod, and the left sides of the two buttons extend into the middle frame and the top frame respectively and are fixedly connected to the upper end of the linkage plate, a positioning tooth head is movably installed on the right side of the lower end of the adjusting rod, and the left side of the positioning tooth head extends into the interior of the adjusting rod and is fixedly connected to the lower end of the linkage plate, and a spring is fixedly installed on the left side of the linkage plate.

[0017] Furthermore, a group of handrails are fixedly mounted on the front and rear ends of the top frame, respectively, and the positioning tooth heads are snap-fitted with the positioning tooth grooves.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This solution can achieve the purpose of exercising multiple parts of the patient's limbs by setting up devices such as pedals, guard frames, sliding rods, slide rails, moving parts, and protective rings. The patient can freely complete limb exercises such as turning and bending in the exercise device, and at the same time, it has emergency braking capabilities to ensure the safety of the patient during exercise.

[0020] (2) By configuring the reel housing, reel, ratchet, clutch lever, ratchet, webbing and other devices, the safety of the device during use is further improved, and the patient can remain upright on the pedals when falling, so that the patient can make adjustments in time and resume exercise.

[0021] (3) This solution provides a double layer of safety protection by installing protective rings, connecting rings, webbing, binding belts, series belts, and sleeves, thereby further improving the safety of the device during use.

[0022] (4) Through the provision of a guard frame, a bottom frame, a middle frame, a top frame, and adjustment components, the scope of application of the device is greatly improved, and the device can be used by patients of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the mobile protection component of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the moving part of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the safety protection component of the present invention;

[0027] Figure 5 It is a schematic diagram of the right plane structure inside the retractable housing of the present invention;

[0028] Figure 6 It is a schematic diagram of the left plane structure inside the retractable housing of the present invention;

[0029] Figure 7 It is a schematic diagram of the internal structure of the guard frame plane of the present invention;

[0030] Figure 8 It is a schematic diagram of the enlarged structure of the details of point A of the present invention.

[0031] Description of the numbers in the figure:

[0032] 1. Pedal; 2. Guard frame; 21. Bottom frame; 22. Middle frame; 23. Top frame; 24. Sliding rod; 25. Slide rail groove; 26. Handrail rod; 27. Mounting frame; 3. Adjustment component; 31. Adjustment rod; 32. Telescopic groove; 33. Positioning tooth groove; 34. Linkage plate; 35. Button; 36. Positioning tooth head; 37. Spring; 4. Mobile protective component; 41. Moving part; 411. Mounting cover; 412. Moving wheel; 413. Auxiliary wheel; 414. Turntable; 415. Brake block; 416. Connecting rod; 42. Guard ring; 43. Sliding groove; 44. Connecting ring; 5. Safety auxiliary component; 51. Reel shell; 52. Reel; 53. Ratchet; 54. Clutch lever; 55. Cam; 56. Sliding pin; 57. Ratchet; 58. Webbing; 59. Binding strap; 6. Series belt; 7. Ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 3, an auxiliary limb exercise device for critical care, comprising a pedal 1, a guard frame 2 is arranged on the top of the pedal 1, the guard frame 2 is composed of a bottom frame 21, a middle frame 22 and a top frame 23, the bottom frame 21 is fixedly installed at the four corners of the top of the pedal 1, a group of middle frames 22 are movably installed on the top of the bottom frame 21, and the tops of the four groups of middle frames 22 are movably installed with top frames 23, a group of sliding rods 24 are movably installed between the middle frames 22 on both sides of the top of the pedal 1, a movable protective component 4 is arranged between the two groups of sliding rods 24, the movable protective component 4 is composed of two groups of moving parts 41 and a group of protective rings 42, the two groups of moving parts 41 are movably installed on the two groups of sliding rods 24, and the protective ring 42 is movably installed between the two groups of sliding rods 24 through the two groups of moving parts 41;

[0035] The movable member 41 is composed of a group of mounting covers 411, two groups of moving wheels 412 and a group of auxiliary wheels 413. The two groups of moving wheels 412 are movably mounted at the upper end position of the mounting cover 411, and the auxiliary wheels 413 are movably mounted at the lower end position of the mounting cover 411. A rotating rod 414 is movably mounted inside the mounting cover 411 between the two groups of moving wheels 412. A brake block 415 is movably mounted on the surface of the rotating rod 414. A connecting rod 416 is fixedly mounted at one end of the mounting cover 411 close to the protective ring 42. The mounting cover 411 is movably mounted on the sliding rod 24 through the two groups of moving wheels 412 and the group of auxiliary wheels 413. The two groups of movable members 41 have the same structure and are symmetrical with the protective ring 42 as the center point. A sliding groove 43 is provided on the outer ring surface of the protective ring 42, and a connecting ring 44 is fixedly installed on the top of the protective ring 42. The end of the connecting rod 416 close to the protective ring 42 extends into the sliding groove 43. The upper and lower ends of the sliding rod 24 are provided with sliding rail grooves 25. The brake block 415 is located between the two groups of moving wheels 412, and the center of gravity of the brake block 415 is lowered after being installed through the rotating rod 414. The two groups of moving wheels 412 and a group of auxiliary wheels 413 are respectively located in the sliding rail grooves 25 opened at the upper and lower ends of the sliding rod 24. The bottom of the brake block 415 extends into the sliding rail groove 25. The brake block 415 does not contact the sliding rail groove 25 when in a vertical state. The protective ring 42 can be rotated and deflected left and right through the sliding groove 43 and the connecting rod 416.

[0036] By adopting the above technical solution, when in use, the protective ring 42 is first disassembled, and then the protective ring 42 is fixed to the patient's waist. When installed on the patient, it is necessary to ensure that the connecting rod 416 is located in the sliding groove 43. After the protective ring 42 is tied to the patient's waist, the patient can perform limb exercises. The patient can perform limb exercises such as walking, turning, and bending on the pedal 1. When the patient walks on the pedal 1, the protective ring 42 is driven by the waist to move. When the protective ring 42 moves, it drives the moving parts 41 at the front and rear ends to move on the sliding rod 24. The two sets of moving wheels 412 and a set of auxiliary wheels 413 move in the sliding groove 43. The patient When moving, because it is a rehabilitation training, the protective ring 42 drives the moving part 41 to move at a slow speed. The protective ring 42 is connected to the two groups of moving parts 41 through the sliding groove 43 and the connecting rod 416, so the protective ring 42 can rotate. When the patient moves from the left side of the pedal 1 surface to the right side, he can turn around and continue walking to the left side. At the same time, because the protective ring 42 is connected to the connecting rod 416 through the sliding groove 43, the protective ring 42 can be deflected by the two groups of connecting rods 416, which is convenient for the patient to bend over. Through the above-mentioned mechanism design, the patient can exercise more limbs during the use of the device;

[0037] The interior of the mounting cover 411 is movably provided with a brake block 415 via a rotating rod 414, and the brake block 415 is located between the two sets of moving wheels 412. When the patient is exercising normally, the moving part 41 has a small movement amplitude, and the moving part 41 has a small movement amplitude, so the brake block 415 also has a small shaking amplitude, and will not touch the protective rings 42 on both sides. When the patient walks, bends or turns around on the pedal 1, the patient's body will suddenly fall to the right side due to sudden weakness of the limbs. At this time, due to the sudden overall amplitude of the patient's body falling, the protective ring 42 drives the moving part 41 to move suddenly via the connecting rod 416. At this time, the brake block The shaking amplitude of 415 suddenly increases and contacts with the moving wheel 412, causing the brake block 415 to be stuck at the angle between the moving wheel 412 and the slide rail groove 25, thereby achieving a braking effect. When the patient falls to the right, the brake block 415 rotates through the rotating rod 414 due to centrifugal force and contacts with the moving wheel 412 on the left and is stuck at the angle between the moving wheel 412 on the left and the slide rail groove 25 for braking. When the patient falls to the left, the brake block 415 is stuck at the angle between the moving wheel 412 on the right and the slide rail groove 25 for braking. Therefore, during the use of the device, the safety of the patient during exercise can be guaranteed, and the patient can be prevented from falling on the pedal 1.

[0038] like Figures 1 to 5As shown, a mounting frame 27 is fixedly mounted on the top of the top frame 23, and a safety auxiliary component 5 is arranged at the bottom of the mounting frame 27. The safety auxiliary component 5 includes a reel housing 51 fixedly mounted on the bottom of the mounting frame 27, a reel 52 is movably mounted inside the reel housing 51, a ratchet 53 is arranged on the right side surface of the reel 52, a clutch lever 54 is movably mounted on the right side of the reel 52 and located on the left side of the ratchet 53, and a cam 55 is movably mounted on the front end of the right side of the reel 52 inside the reel housing 51. A sliding pin 56 is fixedly installed on the right surface of the cam 55, and a ratchet 57 is movably installed on the outer surface of the sliding pin 56. A webbing 58 is movably sleeved on the surface of the reel 52, and the bottom of the webbing 58 extends out of the reel shell 51. A strap 59 is fixedly connected to the bottom of the webbing 58. The ratchet 57 is on the same line as the ratchet 53 set on the right side of the reel 52. The ratchet 57 is provided with teeth meshing with the ratchet 53 on the side close to the ratchet 53. The clutch lever 54 can touch the cam 55 when it is offset due to centrifugal force.

[0039] By adopting the above technical solution, the patient can also tie the strap 59 at the armpit position between exercises. When the patient's limbs suddenly become weak during exercise, causing the patient to fall to one side, the patient's upper body will fall to one side first. At this time, due to the sudden inclination of the patient's body, the strap 59 will suddenly pull the webbing 58 downward. When the webbing 58 is suddenly pulled downward, the webbing 58 will drive the reel 52 to rotate rapidly. When the reel 52 rotates rapidly, the clutch lever 54 will be displaced to the side due to the change of centrifugal force. After the displacement, the clutch lever 54 will contact the cam 55. The cam 55 is displaced due to the clutch lever 54, and then the sliding pin 56 installed thereon drives the ratchet 57 to move. After the ratchet 57 moves, its surface The teeth on the surface will contact with the ratchet teeth 53 set on the surface of the reel 52 and mesh together, thereby braking the reel 52. The reel 52 stops rotating and stops conveying the webbing 58 downward, and the bottom of the webbing 58 is fixed to the patient's upper body through the strap 59, so that even if the patient falls suddenly, the upper body will not tilt excessively. At the same time, in conjunction with the movable protective component 4, even if the patient falls suddenly, the body can still be upright on the pedal 1, and the exercise can be continued after a slight adjustment. Through the above-mentioned structural design, the safety of the device during use is further improved, and the patient's body can still remain upright on the pedal 1 when falling, which is convenient for timely adjustment and re-engagement in exercise.

[0040] like Figures 1 to 5As shown, the bottom of the binding strap 59 is fixedly connected with a series strap 6, and the bottom of the series strap 6 is fixedly installed with a ring 7. The series strap 6 is sleeved on the connecting ring 44 at the top of the protective ring 42 through the ring 7. The top of the protective ring 42 is connected to the series strap 6 through the connecting ring 44 and the ring 7, and the rotation of the protective ring 42 will not be restricted. The protective ring 42 is in a detachable state. After the protective ring 42 is disassembled, it can be removed from the two groups of connecting rods 416. The two groups of connecting rods 416 are always in a straight state after the protective ring 42 is installed through the sliding groove 43.

[0041] By adopting the above technical solution, the bottom of the strap 59 is also connected to a series belt 6, and the series belt 6 is connected to the connecting ring 44 at the top of the protective ring 42 through the ring 7. When the patient is exercising, the protective ring 42 is first fixed to the waist, and then the strap 59 is fixed to the armpit, and finally the series belt 6 is connected to the connecting ring 44 through the ring 7. The protective ring 42 is connected in series with the safety auxiliary component 5 through the connecting ring 44, the series belt 6 and the ring 7. When the patient suddenly falls during exercise and the brake block 415 fails to be clamped between the moving wheel 412 and the slide rail groove 25 in time for braking, the webbing 58 can also be used to achieve When the brake block 415 fails to brake the protective ring 42 in time, the protective ring 42 suddenly moves to one side. When the protective ring 42 moves, it will suddenly pull the series belt 6. The series belt 6 is connected to the webbing 58 through the strap 59, and the webbing 58 will also be suddenly pulled. At this time, the clutch lever 54, the cam 55, the ratchet 57 and other structures cooperate to limit the webbing 58 from being transported downward. At this time, the protective ring 42 can be restricted to prevent the protective ring 42 from continuing to move and causing the patient to fall. Through the above-mentioned structural design, the device has double safety protection, which further improves the safety of the device in use.

[0042] like Figures 1 to 7 As shown, the connection between the bottom frame 21 and the middle frame 22 and the middle frame 22 and the top frame 23 are both provided with an adjustment component 3, and the adjustment component 3 includes an adjustment rod 31 fixedly installed at the bottom of the middle frame 22 and the top frame 23, and the bottom frame 21 and the middle frame 22 are provided with a telescopic groove 32 inside, and the right side wall of the telescopic groove 32 is provided with a positioning tooth groove 33, and the right side surface of the middle frame 22 and the top frame 23 are both movably installed with a button 35, and the inside of the adjustment rod 31 is movably installed with a linkage plate 34, and the two The left sides of the buttons 35 extend into the middle frame 22 and the top frame 23 respectively and are fixedly connected to the upper end of the linkage plate 34. A positioning tooth head 36 is movably installed on the right side of the lower end of the adjusting rod 31. The left side of the positioning tooth head 36 extends into the interior of the adjusting rod 31 and is fixedly connected to the lower end of the linkage plate 34. A spring 37 is fixedly installed on the left side of the linkage plate 34. A group of handrail rods 26 are fixedly installed at the front and rear ends of the top frame 23 respectively, and the positioning tooth head 36 is clamped with the positioning tooth groove 33.

[0043] By adopting the above technical solution, since the heights of patients are different, the heights of the protective ring 42 and the handrail rod 26 need to be adjusted. When adjusting the height of the protective ring 42, first press the button 35 at the bottom right side of the middle frame 22. After the button 35 is pressed, it moves to the left. When the button 35 moves to the left, it drives the linkage plate 34 to move. The linkage plate 34 drives the positioning tooth head 36 to escape from the positioning tooth groove 33 and be stored in the adjusting rod 31. At this time, the middle frame 22 can be raised. When the middle frame 22 is raised, it will drive the sliding rod 24 installed therewith to rise, and the moving member 41 is installed on the sliding rod 24, so as to achieve the purpose of adjusting the height of the protective ring 42. The connection between the middle frame 22 and the top frame 23 is also provided with an adjusting component 3. The height of the top frame 23 can be adjusted by the above method. When adjusting the height, the top frame 23 will also drive the handrail rod 26 to move, so as to achieve the purpose of adjusting the height of the handrail rod 26. Through the above structural design, the scope of application of the device is greatly improved, and it can be applied to patients of different heights.

[0044] Instructions for use: When in use, first fix the protective ring 42 on the patient's waist, then tie the strap 59 under the patient's armpit, and finally tie the series belt 6 to the connecting ring 44 through the ring 7. After that, the patient can normally exercise his limbs on the pedal 1. When the patient uses the components on the pedal 1 to perform auxiliary exercises, if the limbs suddenly become weak and fall to one side, the patient's upper body will first show signs of falling. When the patient's upper body falls, the webbing 58 is suddenly pulled downward by the strap 59, and the reel 52, the clutch lever 54, the ratchet 57 and other components can complete the Braking can prevent the patient's upper body from continuing to fall. Secondly, when the protective ring 42 moves suddenly, braking is completed through the brake block 415, the moving wheel 412 and other components to prevent the patient's waist from continuing to fall to one side, so that the patient can still stand on the pedal 1. Even if the braking of the mobile protective component 4 fails, double braking can still be achieved with the assistance of the safety auxiliary component 5 to protect the patient as much as possible. Before using the device, the patient can adjust the height of each component according to the patient's height by adjusting the component 3, so that the device is suitable for patients with different heights.

[0045] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An auxiliary limb exercise device for critical care, comprising a pedal (1), characterized in that: A guard frame (2) is arranged on the top of the pedal (1), and the guard frame (2) is composed of a bottom frame (21), a middle frame (22) and a top frame (23). The bottom frame (21) is fixedly mounted at four corners of the top of the pedal (1), and a group of middle frames (22) are movably mounted on the top of each of the bottom frames (21), and top frames (23) are movably mounted on the tops of the four groups of middle frames (22); A group of sliding rods (24) are movably mounted between the middle frames (22) on both sides of the top of the pedal (1), and a movable protective component (4) is arranged between the two groups of sliding rods (24). The movable protective component (4) is composed of two groups of moving parts (41) and a group of protective rings (42). The two groups of moving parts (41) are movably mounted on the two groups of sliding rods (24) respectively, and the protective ring (42) is movably mounted between the two groups of sliding rods (24) through the two groups of moving parts (41).

2. The auxiliary limb exercise device for critical care according to claim 1, characterized in that: The movable member (41) is composed of a group of mounting covers (411), two groups of moving wheels (412) and a group of auxiliary wheels (413). The two groups of moving wheels (412) are movably mounted at the upper end position of the mounting cover (411), and the auxiliary wheels (413) are movably mounted at the lower end position of the mounting cover (411). A rotating rod (414) is movably mounted inside the mounting cover (411) and between the two groups of moving wheels (412). A brake block (415) is movably mounted on the surface of the rotating rod (414). A connecting rod (416) is fixedly mounted on one end of the mounting cover (411) close to the protective ring (42). The mounting cover (411) is movably mounted on the sliding rod (24) through the two groups of moving wheels (412) and the group of auxiliary wheels (413). The two groups of movable members (41) have the same structure and are symmetrical with the protective ring (42) as the center point.

3. The auxiliary limb exercise device for critical care according to claim 2, characterized in that: The outer ring surface of the protective ring (42) is provided with a sliding groove (43), the top of the protective ring (42) is fixedly mounted with a connecting ring (44), and one end of the connecting rod (416) close to the protective ring (42) extends into the sliding groove (43).

4. The auxiliary limb exercise device for critical care according to claim 2, characterized in that: The upper and lower ends of the sliding rod (24) are both provided with a sliding rail groove (25), the brake block (415) is located between the two groups of moving wheels (412), and the center of gravity of the brake block (415) is lowered after being installed through the rotating rod (414), the two groups of moving wheels (412) and a group of auxiliary wheels (413) are respectively located in the sliding rail grooves (25) provided at the upper and lower ends of the sliding rod (24), the bottom of the brake block (415) extends into the sliding rail groove (25), and the brake block (415) does not contact the sliding rail groove (25) when in a vertical state, and the protective ring (42) can be rotated and deflected left and right through the sliding groove (43) and the connecting rod (416).

5. The auxiliary limb exercise device for critical care according to claim 1, characterized in that: A mounting frame (27) is fixedly mounted on the top of the top frame (23), a safety auxiliary component (5) is arranged at the bottom of the mounting frame (27), the safety auxiliary component (5) comprises a reeling shell (51) fixedly mounted on the bottom of the mounting frame (27), a reel (52) is movably mounted inside the reeling shell (51), a ratchet (53) is arranged on the right side surface of the reel (52), and a clutch is movably mounted on the right side of the reel (52) and located on the left side of the ratchet (53). The reel (52) is provided with a rod (54), a cam (55) is movably mounted on the front end of the right side of the reel (52) inside the reel housing (51), a sliding pin (56) is fixedly mounted on the right side surface of the cam (55), a ratchet (57) is movably mounted on the outer surface of the sliding pin (56), a webbing (58) is movably sleeved on the surface of the reel (52), the bottom of the webbing (58) extends out of the reel housing (51), and the bottom of the webbing (58) is fixedly connected to a binding strap (59).

6. The auxiliary limb exercise device for critical care according to claim 5, characterized in that: The ratchet wheel (57) and the ratchet teeth (53) arranged on the right side of the reel (52) are on the same line, and teeth meshing with the ratchet teeth (53) are arranged on the side of the ratchet wheel (57) close to the ratchet teeth (53). When the clutch lever (54) is offset due to centrifugal force, it can touch the cam (55).

7. The auxiliary limb exercise device for critical care according to claim 5, characterized in that: The bottom of the binding strap (59) is fixedly connected to a series strap (6), and a sleeve (7) is fixedly installed on the bottom of the series strap (6). The series strap (6) is sleeved on a connecting ring (44) at the top of the protective ring (42) through the sleeve (7). After the top of the protective ring (42) is connected to the series strap (6) through the connecting ring (44) and the sleeve (7), the rotation of the protective ring (42) will not be restricted.

8. The auxiliary limb exercise device for critical care according to claim 3, characterized in that: The protective ring (42) is in a detachable state. After being detached, the protective ring (42) can be removed from the two groups of connecting rods (416). After the protective ring (42) is installed through the sliding groove (43), the two groups of connecting rods (416) are always in a straight line.

9. The auxiliary limb exercise device for critical care according to claim 1, characterized in that: The connection between the bottom frame (21) and the middle frame (22) and between the middle frame (22) and the top frame (23) is provided with an adjustment component (3), the adjustment component (3) comprises an adjustment rod (31) fixedly mounted at the bottom of the middle frame (22) and the top frame (23), a telescopic groove (32) is provided inside the bottom frame (21) and the middle frame (22), a positioning tooth groove (33) is provided on the right side wall of the telescopic groove (32), and buttons (33) are movably mounted on the right side surfaces of the middle frame (22) and the top frame (23). 5), a linkage plate (34) is movably installed inside the adjusting rod (31), the left sides of the two buttons (35) respectively extend into the middle frame (22) and the top frame (23) and are fixedly connected to the upper end of the linkage plate (34), a positioning tooth head (36) is movably installed on the right side of the lower end of the adjusting rod (31), the left side of the positioning tooth head (36) extends into the interior of the adjusting rod (31) and is fixedly connected to the lower end of the linkage plate (34), and a spring (37) is fixedly installed on the left side of the linkage plate (34).

10. The auxiliary limb exercise device for critical care according to claim 9, characterized in that: A group of handrails (26) are fixedly mounted on the front and rear ends of the top frame (23), respectively, and the positioning tooth heads (36) are clamped with the positioning tooth grooves (33).