Sickbed capable of automatically getting in and out of bed and having anti-falling function

Abstract

The invention provides a sickbed capable of automatically getting on and off a bed and having an anti-falling function, which is characterized by comprising a bottom bedstead, a top bedstead, a bed board, a lifting mechanism, a standing-assisting electric push rod, an upper body bedrail, a lower body bedrail, a controller and a control key, the lifting mechanism is located between the bottom bed frame and the top bed frame and can adjust the height difference between the bottom bed frame and the top bed frame, the bed board is divided into two sections, the upper half part can lift the upper body of a patient under the assistance of the lifting-assisting electric push rod to assist the patient in getting up, and the lower half part can lift up the upper body of the patient under the assistance of the lifting-assisting electric push rod. The upper body bedrail can be turned over by a certain angle along with turning over of the bed board, a certain protection effect is achieved for a getting-up patient, and the lower body bedrail can be controlled by the controller and the control key to ascend and descend and can be adjusted according to needs. The bedrail can be automatically controlled to ascend and descend, a patient can be assisted in getting up, the risk that the patient falls from the bed can be effectively reduced, and the pressure of an accompanying person cannot be increased.

Description

[0001] This application is a divisional application of application number 2022108053919, filed on July 8, 2022, with Nanjing First Hospital as the applicant. Technical Field

[0002] This invention relates to the field of medical devices, specifically a hospital bed that allows the patient to get in and out of bed independently and has a fall prevention function. Background Technology

[0003] Hospital beds are commonly used in hospitals, clinics, or health service centers. Some patients require fall-prevention bed rails to prevent them from falling out of bed. However, existing fall-prevention bed rails often prevent patients from changing their position on their own, requiring assistance from caregivers to get out of bed. Furthermore, some elderly patients or those with limited mobility face difficulties getting up, yet they still need to move around. This necessitates the assistance of caregivers to get up and get in bed smoothly. If caregivers are not present, patients cannot get up or get out of bed, requiring them to be readily available to help, significantly increasing their workload. Therefore, we need a hospital bed that not only prevents falls but also assists patients in getting up and getting in and out of bed independently, enhancing their self-care abilities and reducing the burden on caregivers. Summary of the Invention

[0004] The purpose of this invention is to provide a hospital bed that allows patients to get in and out of bed independently and has a fall prevention function. It is equipped with a fall prevention bed rail, which can be raised and lowered independently without the need for a caregiver. The bed rail can be moved without the need for a caregiver. If the patient has difficulty getting up, it can also assist the patient in getting up. This can effectively reduce the risk of the patient falling out of bed without increasing the pressure on the caregiver and enhance the patient's self-care ability.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hospital bed with self-adjusting entry and exit mechanisms and fall prevention function, characterized in that it includes a bottom bed frame 1, a top bed frame 2, a bed board 3, a lifting mechanism 4, an electric lifting rod 5, an upper body bed rail 6, a lower body bed rail 7, a controller 8, and a control button module 9; the lifting mechanism 4 is located between the bottom bed frame 1 and the top bed frame 2 and can adjust the height difference between the two; the bed board 3 is divided into an upper body bed board 31 and a lower body bed board 32, wherein the upper body bed board 31 can lift the patient's upper body with the help of the electric lifting rod 5 to assist the patient in getting up; the upper body bed rail 6 can be folded at a certain angle as the bed board 3 is folded, providing a certain protective effect for the patient when getting up; the lower body bed rail 7 can be raised and lowered under the control of the controller 8 and the control button module 9.

[0007] Four bottom guide tubes 11 are fixedly connected to the four corners of the bottom bed frame 1 near the top bed frame 2, and four top guide tubes 21 are fixedly connected to the four corners of the top bed frame 2 near the bottom bed frame 1. Both the bottom guide tubes 11 and the top guide tubes 21 are hollow with smooth outer surfaces, and the inner diameter of the bottom guide tubes 11 is just large enough to fit the top guide tubes 21.

[0008] The bottom bed frame 1 is provided with two slide rails 12, and the slide rails 12 are provided with two grooves 121; the bottom of the bottom bed frame 1 is provided with four medical casters 13; the top bed frame 2 is provided with three support rods 22.

[0009] The lifting mechanism 4 is provided in two sets. Each set of the lifting mechanism 4 includes a fixed block 41, a hinge shaft 42, a short folding rod 43, a long folding rod 44, and a roller 45. The top of the lifting mechanism 4 is provided with two fixed blocks 41, which are fixedly connected to the support rod 22. The fixed blocks 41 have round holes, and the hinge shaft 42 can be installed at the round holes of the two fixed blocks 41. The hinge shaft 42 is divided into three sections, of which the two short folding rods 43 are respectively connected to the two sides of the hinge shaft 42. The two parts are fixedly connected, and the other two short folding rods 43 are fixedly connected to the middle end of the hinge shaft 42. Each long folding rod 44 is hinged to one of the short folding rods 43. The long folding rods 44 and the short folding rods 43 are arranged in an alternating manner. The two adjacent long folding rods 44 are also hinged at their intersection. The bottom of each long folding rod 44 is provided with a roller 45. The width of the roller 45 can be placed in the groove 121 on the slide rail 12.

[0010] The long folding rod 44 and the short folding rod 43 located on the left and right sides of the bed are connected by an extended folding rod connecting rod 46. Each set of lifting mechanisms 4 has two folding rod connecting rods 46. The two folding rod connecting rods 46 are fixedly connected to an electric push rod 47 on the same horizontal line. The electric push rod 47 is connected to the controller 8, and the length of the electric push rod 47 is controlled by the controller 8.

[0011] The upper bed board 31 and the lower bed board 32 are hinged together, and the lower bed board 32 is fixed above the top bed frame 2. A lifting electric push rod fixing cylinder 221 with an upward opening is fixedly connected to the side of the support rod 22 on the side of the top bed frame 2 near the upper bed board 31. The lifting electric push rod 5 can be placed inside the lifting electric push rod fixing cylinder 221. The top of the lifting electric push rod 5 is hinged to the bottom surface of the upper bed board 31. The lifting electric push rod 5 is connected to the controller 8, and the length of the lifting electric push rod 5 is controlled by the controller 8. When the length of the lifting electric push rod 5 increases, it will lift the upper bed board 31... The bed board 31 is lifted up, causing the upper body bed board 31 to fold at a certain angle; the upper body bed board 31 is provided with a fixing strap 311, and a pair of buckles 312 are fixed on the fixing strap 311. The fixing strap is normally fixed to the bottom of the upper body bed board 31, and can be flipped to the upper surface of the upper body bed board 31 for use when needed to fix the patient's upper body; a bed board groove 313 is opened on the side of the upper body bed board 31 near the top bed frame, and a hinge joint 314 that can slide on the bed board groove 313 is provided. The hinge joint 314 is hinged to the end of the electric lifting push rod 5 to assist the electric lifting push rod 5 in raising the upper body bed board 31.

[0012] There are two upper bed rails 6 and two lower bed rails 7, located on both sides of the bed board 3 respectively. The two short sides of the top bed frame 2 are respectively provided with a head bed rail 14 and a foot bed rail 15. The head bed rail 14 and the foot bed rail 15 are fixedly connected to the bottom bed frame 2.

[0013] The upper bed rail 6 is fixedly connected to a connecting plate 61. A round hole 611 is provided at one corner of the connecting plate 61 near the center of the top bed frame 2. An upper bed rail drive rod 62 is fixedly connected to the round hole 611. The upper bed rail drive rod 62 passes through the top bed frame 2, and one end of the upper bed rail drive rod 62 extending into the top bed frame 2 is connected to an upper bed rail servo motor 63. The upper bed rail drive rod 62 and the top bed frame 2 can rotate relative to each other. The upper bed rail servo motor 63 is fixedly connected to the inner side wall of the top bed frame 2. The upper bed rail servo motor 63 can drive the upper bed rail drive rod 62 to rotate, thereby causing the upper bed rail 6 to rotate at a certain angle. The upper bed rail servo motor 63 is connected to and controlled by the controller 8. A limiting block 612 is provided at the bottom of the end of the connecting plate 61 away from the round hole 611. The limiting block 612 is fixedly connected to the top bed frame 2 and provides a certain auxiliary support for the connecting plate 61.

[0014] Two drive plates 71 are provided between the lower bed rail 7 and the top bed frame 2. The center lines of the two drive plates 71 are parallel to each other. The top end of the drive plate 71 is hinged to the bottom end of the lower bed rail 7, and the bottom end of the drive plate 71 is hinged to the outer side of the top bed frame 2. Each hinge point between the drive plate 71 and the top bed frame 2 is provided with a lower bed rail drive rod 72. The lower bed rail drive rod 72 passes through the top bed frame 2. One end of the lower bed rail drive rod 72 extending into the top bed frame 2 is connected to the lower bed rail servo motor 73. The lower bed rail servo motor 73 can rotate relative to the top bed frame 2. The lower bed rail servo motor 73 is fixedly connected to the inner side wall of the top bed frame 2. The lower bed rail servo motor 73 can drive the lower bed rail drive rod 72 to rotate, thereby moving the lower bed rail 7. The lower bed rail servo motor 73 is connected to and controlled by the controller 8.

[0015] The control button module 9 is connected to the controller 8. The controller 8 contains a microcontroller. The control button module 9 sends control signals to the microcontroller in the controller 8. After processing by the microcontroller, the electric push rod 47, the lifting electric push rod 5, the upper bed rail servo motor 63, and the lower bed rail servo motor 73 are controlled to make corresponding length changes or rotations. The control button module 9 has five buttons: button 1 91, button 2 92, button 3 93, button 4 94, and button 5 95. Button 1 91 controls the electric push rod 47 to shorten, and button 2 92 controls the electric push rod 47 to extend. The third button 93 controls the lifting electric push rod 5 to rise, while the upper bed rail servo motor 63 and the lower bed rail servo motor 73 rotate at a certain angle. The fourth button 94 controls the lower bed rail servo motor 73 to rotate at a certain angle to lower the lower bed rail 7 to its lowest position. The fifth button 95 controls the upper bed rail servo motor 63 and the lower bed rail servo motor 73 to rotate at a certain angle to reset the lower bed rail 7 and the upper bed rail 6, and controls the lifting electric push rod 5 to descend so that the upper bed board 31 returns to flatness. The control button module 9 is fixedly installed on the upper surface of the upper bed rail 6 located on the right side of the patient when lying supine.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention, while maintaining the anti-fall bed rails, allows patients to independently control the raising and lowering of the bed rails, enabling them to get in and out of bed freely without the assistance of caregivers. Furthermore, the height of the bed is adjustable, increasing ease of getting out of bed and accommodating patients of different heights. For patients with difficulty getting up, the upper bed board can be folded at a certain angle to assist in standing. The upper bed rails also fold at a certain angle when the upper bed board is folded, providing protection for the patient while assisting in getting up. In specific situations where it is necessary to secure the patient while they are getting up, the securing straps can be used to further secure them. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is one of the schematic diagrams of the bottom bed frame and lifting mechanism of the present invention;

[0020] Figure 3 This is the second schematic diagram of the bottom bed frame and lifting mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the lifting mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of the low top bed rail, upper body bed rail, and lower body bed rail of the present invention;

[0023] Figure 6 This is a partial schematic diagram of the lower half of the top bed rail of the present invention;

[0024] Figure 7 This is a partial schematic diagram of the upper half of the top bed rail of the present invention;

[0025] Figure 8 This is a schematic diagram of the bed board structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the overall structure of the upper bed board of the present invention when it is raised;

[0027] Figure 10 This is a schematic diagram of the upper body bed board of the present invention when it is raised;

[0028] Figure 11 This is a schematic diagram of the fixing strap and buckle structure of the present invention;

[0029] Figure 12 This is an overall side view of the upper bed board of the present invention when it is raised;

[0030] Figure 13 This is a schematic diagram of the overall structure of the lower body bed board of the present invention when it is lowered;

[0031] Figure 14This is a schematic diagram showing the state of the drive plate when the lower body bed board of the present invention is lowered;

[0032] Figure 15 This is a schematic diagram of the control button module structure of the present invention;

[0033] Figure 16 This is a schematic diagram of the low-height monkey structure of the present invention;

[0034] Figure 17 This is a schematic diagram showing the upper bed board of the present invention raised and using fixing straps;

[0035] In the diagram: 1-Bottom bed frame; 11-Bottom guide tube; 12-Slide rail; 121-Groove; 13-Medical caster wheel; 14-Head rail; 15-Foot rail; 2-Top bed frame; 21-Top guide tube; 22-Support rod; 221-Electric push rod fixing tube for assisting lifting; 3-Bed board; 31-Upper bed board; 311-Fixing strap; 312-Snap; 313-Bed board groove; 314-Hinge joint; 32-Lower bed board; 4-Lifting mechanism; 41-Fixing block; 42-Hinge shaft; 43-Short folding rod ; 44-Long folding rod; 45-Roller; 46-Folding rod connecting rod; 47-Electric push rod; 5-Assisted electric push rod; 6-Upper bed rail; 61-Connecting plate; 611-Round hole; 612-Limit block; 62-Upper bed rail drive rod; 63-Upper bed rail servo motor; 7-Lower bed rail; 71-Drive plate; 72-Lower bed rail drive rod; 73-Lower bed rail servo motor; 8-Controller; 9-Control button module; 91-Button 1; 92-Button 2; 93-Button 3; 94-Button 4; 95-Button 5. Detailed Implementation

[0036] To clarify the technical problems, technical solutions, implementation processes, and performance demonstrations, the present invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative. The present invention is not intended to limit the scope of the invention. Various exemplary embodiments, features, and aspects of this disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements with the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0037] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0038] Furthermore, to better illustrate this disclosure, numerous specific details are set forth in the following detailed description. Those skilled in the art will understand that this disclosure can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art have not been described in detail in order to highlight the main points of this disclosure.

[0039] Example 1

[0040] like Figures 1-8 As shown, a hospital bed that allows patients to get in and out of bed independently and has a fall prevention function is characterized by comprising a bottom bed frame 1, a top bed frame 2, a bed board 3, a lifting mechanism 4, an electric push rod for assisting in getting up 5, an upper body bed rail 6, a lower body bed rail 7, a controller 8, and a control button module 9. The lifting mechanism 4 is located between the bottom bed frame 1 and the top bed frame 2 and can adjust the height difference between the two. The bed board 3 is divided into an upper body bed board 31 and a lower body bed board 32. The upper body bed board 31 can lift the patient's upper body with the help of the electric push rod 5 to assist the patient in getting up. The upper body bed rail 6 can be folded at a certain angle as the bed board 3 is folded, providing a certain protective effect for the patient when getting up. The lower body bed rail 7 can be raised and lowered under the control of the controller 8 and the control button module 9.

[0041] In one possible implementation, four bottom guide cylinders 11 are fixedly connected to the four corners of the bottom bed frame 1 near the top bed frame 2, and four top guide cylinders 21 are fixedly connected to the four corners of the top bed frame 2 near the bottom bed frame 1. Both the bottom guide cylinders 11 and the top guide cylinders 21 are hollow with smooth outer surfaces, and the inner diameter of the bottom guide cylinder 11 is just large enough to fit the top guide cylinder 21. The presence of the bottom guide cylinders 11 and the top guide cylinders 21 ensures that when the lifting mechanism 4 moves, the bottom bed frame 1 and the top bed frame 2 can only move up and down, and there will be no offset in other directions.

[0042] As one possible implementation, the bottom bed frame 1 is provided with two slide rails 12, and the slide rails 12 are provided with two grooves 121; the bottom of the bottom bed frame 1 is provided with four medical casters 13, which can facilitate the transfer of the bed to make it easier to transport patients when they need to be moved or examined; the top bed frame 2 is provided with three support rods 22, which not only makes the bed frame more sturdy, but also facilitates the installation and fixation of other structures.

[0043] like Figures 2-4As shown, in one possible implementation, the lifting mechanism 4 is provided in two sets. Each set of the lifting mechanism 4 includes a fixed block 41, a hinge shaft 42, a short folding rod 43, a long folding rod 44, and a roller 45. The top of the lifting mechanism 4 is provided with two fixed blocks 41, which are fixedly connected to the support rod 22. The fixed blocks 41 have round holes, and the hinge shaft 42 can be installed at the round holes of the two fixed blocks 41. The hinge shaft 42 is divided into three sections, and the two short folding rods 43 are respectively fixed to the two parts on both sides of the hinge shaft 42. The two short folding rods 43 are fixedly connected to the middle end of the hinge shaft 42. Each long folding rod 44 is hinged to one of the short folding rods 43. The long folding rods 44 and the short folding rods 43 are arranged in an alternating pattern. Adjacent long folding rods 44 are also hinged at their intersection. The bottom of each long folding rod 44 is provided with a roller 45. The width of the roller 45 is just enough to fit into the groove 121 on the slide rail 12, so that the roller 45 can only move along the groove 121 without deviating.

[0044] In one possible implementation, the long folding rods 44 and short folding rods 43 located on the left and right sides of the bed are connected by an extended folding rod connecting rod 46 at their hinged joints. Each set of lifting mechanisms 4 has two folding rod connecting rods 46, and an electric push rod 47 is fixedly connected to the two folding rod connecting rods 46 on the same horizontal line. The electric push rod 47 is connected to the controller 8, and its length is controlled by the controller 8. When it is necessary to lower the bed height, the button 2 92 can be pressed to control the electric push rod 47 to extend, thereby lowering the height of the entire lifting mechanism 4 to achieve the desired effect. Figure 16 The effect is to accommodate patients of petite stature; when it is necessary to raise the height of the hospital bed, the button 91 can be pressed to control the electric push rod 47 to shorten, thereby raising the height of the entire lifting mechanism 4 to achieve the desired effect. Figure 1 The effect is to suit patients with larger body sizes.

[0045] like Figure 10 and Figure 11As shown, in one possible implementation, the upper bed board 31 and the lower bed board 32 are hinged together, and the lower bed board 32 is fixed above the top bed frame 2. A lifting electric push rod fixing cylinder 221 with an upward opening is fixedly connected to the side of the support rod 22 on the side of the top bed frame 2 near the upper bed board 31. The lifting electric push rod 5 can be placed inside the lifting electric push rod fixing cylinder 221. The top of the lifting electric push rod 5 is hinged to the bottom surface of the upper bed board 31. The lifting electric push rod 5 is connected to the controller 8, and the length of the lifting electric push rod 5 is controlled by the controller 8. When the length of the lifting electric push rod 5 increases, it will lift the upper bed board 31, causing the upper bed board 31 to fold at a certain angle. A fixing strap 311 is provided on the upper bed board 31, and a pair of buckles 31 are fixed on the fixing strap 311. 2. The fixing strap is normally fixed to the bottom of the upper body bed board 31. When needed, it can be flipped up to the upper surface of the upper body bed board 31 to fix the patient's upper body. A bed board groove 313 is opened on the side of the upper body bed board 31 near the top bed frame. A hinge joint 314 is provided on the bed board groove 313, which can slide on it. The hinge joint 314 is hinged to the end of the electric lifting rod 5, which assists the electric lifting rod 5 in raising the upper body bed board 31. For some patients who have difficulty getting up, the electric lifting rod 5 can be raised by pressing the button 393, which will cause the upper body bed board 31 to fold at a certain angle to achieve the effect of assisting getting up. For patients with poor self-care ability, it is sometimes necessary to fix the upper body of the patient who is getting up. For example, when feeding such patients, the fixing strap 311 at the bottom of the upper body bed board 31 can be brought to the front. Figure 17 After adjusting the patient's posture, the patient is secured to the upper body bed board 31 with the cooperation of the buckle 312 and the fixing strap 311 to prevent the patient from being unstable when standing on the left.

[0046] There are two upper bed rails 6 and two lower bed rails 7, located on both sides of the bed board 3 respectively. The two short sides of the top bed frame 2 are respectively provided with a head bed rail 14 and a foot bed rail 15. The head bed rail 14 and the foot bed rail 15 are fixedly connected to the bottom bed frame 2.

[0047] like Figures 5-9 and Figures 12-14As shown, in one possible implementation, the upper bed rail 6 is fixedly connected to a connecting plate 61. A circular hole 611 is formed in one corner of the connecting plate 61 near the middle of the top bed frame 2. An upper bed rail drive rod 62 is fixedly connected to the circular hole 611. The upper bed rail drive rod 62 passes through the top bed frame 2, and one end of the upper bed rail drive rod 62 extending into the top bed frame 2 is connected to an upper bed rail servo motor 63. The upper bed rail drive rod 62 and the top bed frame 2 can rotate relative to each other. The upper bed rail servo motor 63 is fixedly connected to the inner wall of the top bed frame 2. The upper bed rail servo motor 63 can drive the upper bed rail drive rod 62 to rotate, thereby driving the connecting plate 61 to rotate, and thus driving the upper bed rail... The bed rail 6 flips at a certain angle; the upper bed rail servo motor 63 is connected to and controlled by the controller 8; a limiting block 612 is provided at the bottom of the end of the connecting plate 61 away from the round hole 611, and the limiting block 612 is fixedly connected to the top bed frame 2, which plays a certain auxiliary support and limiting role for the connecting plate 61. The upper bed rail 6 of the present invention will rotate at a certain angle when the upper bed board 31 is folded upward, and the angle is slightly smaller than the folding angle of the upper bed board 31. In this way, the patient can also be protected when the upper bed board 31 is folded upward, and the patient can be prevented from falling out of bed accidentally; therefore, when the button 3 93 is pressed, the upper bed rail servo motor 63 will also rotate at a certain angle, specifically slightly smaller than the folding angle of the upper bed board 31.

[0048] In one possible implementation, two drive plates 71 are provided between the lower bed rail 7 and the upper bed frame 2. The center lines of the two drive plates 71 are parallel to each other. The top end of the drive plate 71 is hinged to the bottom end of the lower bed rail 7, and the bottom end of the drive plate 71 is hinged to the outer side of the upper bed frame 2. A lower bed rail drive rod 72 is provided at the hinge point between each drive plate 71 and the upper bed frame 2. The lower bed rail drive rod 72 passes through the upper bed frame 2, and one end of the lower bed rail drive rod 72 extending into the upper bed frame 2 is connected to the lower bed rail servo motor 73. The lower bed rail servo motor 73 is connected to the upper bed frame 2. The lower bed rail servo motor 73 is fixedly connected to the inner wall of the top bed frame 2. The lower bed rail servo motor 73 can drive the lower bed rail drive rod 72 to rotate, thereby driving the drive plate 71 and thus moving the lower bed rail 7. The lower bed rail servo motor 73 is connected to and controlled by the controller 8. When the upper bed rail 6 of the hospital bed rotates a certain angle as the upper bed board 31 folds upwards, the lower bed rail 7 will interfere with the upper bed rail 6 if it does not rotate. Therefore, when the upper bed board 31 folds upwards, the lower bed rail servo motor 73 must also drive the lower bed rail to rotate 90°. Figure 12Therefore, when button 3 (93) is pressed, the lower bed rail servo motor 73 will also rotate 90°. At this time, the height of the lower bed rail 7 is still higher than that of the bed board 3, so it also has a certain function of preventing falls from the bed. When the patient needs to get out of bed, button 4 (94) can be pressed. At this time, the lower bed rail servo motor 73 will rotate 180° directly, driving the lower bed rail 7 to the lowest position. Figure 13 At this point, the highest point of the lower body bed rail 7 is lower than the bed board 3, making it easier for the patient to get out of bed.

[0049] In one possible implementation, the control button module 9 is connected to the controller 8. The controller 8 contains a microcontroller. The control button module 9 sends control signals to the microcontroller in the controller 8. After processing by the microcontroller, the electric push rod 47, the lifting electric push rod 5, the upper bed rail servo motor 63, and the lower bed rail servo motor 73 are controlled to make corresponding length changes or rotations. The control button module 9 has five buttons: button 1 91, button 2 92, button 3 93, button 4 94, and button 5 95. Button 1 91 controls the electric push rod 47 to retract. In short, button 2 92 controls the extension of the electric push rod 47, button 3 93 controls the raising of the assist electric push rod 5, and simultaneously the upper bed rail servo motor 63 and the lower bed rail servo motor 73 rotate a certain angle, button 4 94 controls the lower bed rail servo motor 73 to rotate a certain angle to lower the lower bed rail 7 to its lowest position, button 5 95 controls the upper bed rail servo motor 63 and the lower bed rail servo motor 73 to rotate a certain angle to reset the lower bed rail 7 and the upper bed rail 6, and controls the lower bed rail 6 to lower the assist electric push rod 5 to restore the upper bed board 31 to flatness, and the entire hospital bed returns to its normal position. Figure 1 Status; The control button module 9 is fixedly installed on the upper surface of the upper body bed rail 6 located on the right side of the patient when lying supine, so as to facilitate the patient's use of the buttons.

[0050] Patients can control the bed to get in and out of bed using the buttons, which also helps prevent falls for resting patients. For taller patients, button 91 raises the bed, and button 92 lowers it to accommodate patients of different heights. The height can also be adjusted as needed when getting in and out of bed. Button 93 raises the upper bed board 31 to a certain angle, and simultaneously rotates the upper bed rails 6, assisting with getting up while still preventing falls. The bed serves several purposes. When the upper bed rail 6 is flipped, the lower bed rail 7 also rotates outward by 90 degrees to prevent interference between the lower bed rail 7 and the upper bed rail 6. Even after rotating 90 degrees, the lower bed rail 7 remains higher than the bed board 3, thus still providing some fall prevention. Button 4 (94) controls the lowest point of the lower bed rail 7's descent. At this point, the highest point of the lower bed rail 7 is lower than the bed board 3, making it easier for the patient to get out of bed and move around. Button 5 (95) allows the bed to return to its original position. Figure 1 This allows the patient to continue resting.

[0051] The hospital bed of this invention can be operated by a single patient via the control button module 9. With the anti-fall bed rails in place, the patient can also control the raising and lowering of the bed rails independently, allowing for free getting in and out of bed without the assistance of a caregiver. The bed is height-adjustable, increasing ease of getting out of bed and accommodating patients of different heights. For patients with difficulty getting up, the upper bed board can be folded at a certain angle to assist in getting up. The upper bed rails also fold at a certain angle when the upper bed board is folded, providing protection for the patient while assisting in getting up. In certain situations where it is necessary to secure the patient while they are getting up, the securing straps can be used to further secure them, reducing the workload of caregivers and enhancing the patient's self-care ability.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hospital bed that allows for independent getting in and out of bed and has a fall prevention function, characterized in that, The system includes a bottom bed frame (1), a top bed frame (2), a bed board (3), a lifting mechanism (4), an electric lift rod (5), an upper body rail (6), a lower body rail (7), a controller (8), and a control button module (9). The lifting mechanism (4) is located between the bottom bed frame (1) and the top bed frame (2) and can adjust the height difference between them. The bed board (3) is divided into an upper body bed board (31) and a lower body bed board (32). The upper body bed board (31) can lift the patient's upper body with the help of the electric lift rod (5) to assist the patient in getting up. The upper body rail (6) can fold as the bed board (3) folds. At a certain angle, it provides a certain protective effect for patients getting up. The lower body bed rail (7) can be raised and lowered by the controller (8) and the control button module (9). Four bottom guide tubes (11) are fixedly connected to the four corners of the bottom bed frame (1) near the top bed frame (2). Four top guide tubes (21) are fixedly connected to the four corners of the top bed frame (2) near the bottom bed frame (1). Both the bottom guide tube (11) and the top guide tube (21) are hollow with smooth outer surfaces. The inner diameter of the bottom guide tube (11) can just fit the top guide tube (21).

2. A hospital bed according to claim 1, characterized in that, [the bed allows for independent getting in and out of bed and has an anti-fall-off function] The bottom bed frame (1) is provided with two slide rails (12), and the slide rails (12) are provided with two grooves (121); the bottom of the bottom bed frame (1) is provided with four medical casters (13); the top bed frame (2) is provided with three support rods (22).

3. A hospital bed according to claim 1, characterized in that, [the bed allows for independent getting in and out of bed and has a fall prevention function] The lifting mechanism (4) is provided in two sets. Each set of the lifting mechanism (4) includes a fixed block (41), a hinge shaft (42), a short folding rod (43), a long folding rod (44), and a roller (45). The top of the lifting mechanism (4) is provided with two fixed blocks (41). The fixed blocks (41) are fixedly connected to the support rod (22). The fixed blocks (41) are provided with round holes. The hinge shaft (42) can be installed at the round holes of the two fixed blocks (41). The hinge shaft (42) is divided into three sections, of which the two short folding rods (43) are respectively connected to the hinge shaft (45). 42) The two parts on both sides are fixedly connected, and the other two short folding rods (43) are fixedly connected to the middle end of the hinge shaft (42). Each long folding rod (44) is hinged to one of the short folding rods (43). The long folding rods (44) and the short folding rods (43) are arranged in an alternating manner. The two adjacent long folding rods (44) are also hinged at their intersection. The bottom of each long folding rod (44) is provided with a roller (45). The width of the roller (45) can be placed in the groove (121) on the slide rail (12).

4. A hospital bed according to claim 3, characterized in that, [the bed allows for independent getting in and out of bed and has an anti-fall-off function] The long folding rod (44) and the short folding rod (43) located on the left and right sides of the bed are connected by an extended folding rod connecting rod (46). There are two folding rod connecting rods (46) between each set of lifting mechanisms (4). An electric push rod (47) is fixedly connected to the two folding rod connecting rods (46) on the same horizontal line. The electric push rod (47) is connected to the controller (8). The length of the electric push rod (47) is controlled by the controller (8).

5. A hospital bed according to claim 1, characterized in that, [the bed allows for independent getting in and out of bed and has an anti-fall-off function] The upper bed board (31) and the lower bed board (32) are hinged together, and the lower bed board (32) is fixed above the top bed frame (2). A lifting electric push rod fixing cylinder (221) with an upward opening is fixedly connected to the side of the support rod (22) of the top bed frame (2) near the upper bed board (31). The lifting electric push rod (5) can be placed inside the lifting electric push rod fixing cylinder (221). The top of the lifting electric push rod (5) is hinged to the bottom surface of the upper bed board (31). The lifting electric push rod (5) is connected to the controller (8). The length of the lifting electric push rod (5) is controlled by the controller (8). When the length of the lifting electric push rod (5) increases, it will lift the upper bed board (31). The upper body bed board (31) is lifted up, causing it to fold at a certain angle. A fixing strap (311) is provided on the upper body bed board (31), and a pair of buckles (312) are fixed on the fixing strap (311). The fixing strap (311) is normally fixed on the side of the upper body bed board (31) near the top bed frame. When needed, it can be flipped onto the upper surface of the upper body bed board (31) to fix the patient's upper body. A bed board groove (313) is opened on the side of the upper body bed board (31) near the top bed frame. A hinge joint (314) that can slide on the bed board groove (313) is provided. The hinge joint (314) is hinged to the end of the lifting electric push rod (5) to assist the lifting electric push rod (5) in raising the upper body bed board (31).

6. A hospital bed according to claim 1, characterized in that, [the bed allows for independent getting in and out of bed and has an anti-fall-off function] The upper bed rail (6) and the lower bed rail (7) are provided in twos, located on both sides of the bed board (3). The two short sides of the top bed frame (2) are provided with a head bed rail (14) and a foot bed rail (15), and the head bed rail (14) and the foot bed rail (15) are fixedly connected to the bottom bed frame (2).

7. A hospital bed according to claim 1, characterized in that, [the bed allows for independent getting in and out of bed and has a fall prevention function] The upper bed rail (6) and a connecting plate (61) are fixedly connected. A round hole (611) is opened at one corner of the connecting plate (61) near the middle of the top bed frame (2). An upper bed rail drive rod (62) is fixedly connected to the round hole (611). The upper bed rail drive rod (62) passes through the top bed frame (2). One end of the upper bed rail drive rod (62) that extends into the top bed frame (2) is connected to the upper bed rail servo motor (63). The upper bed rail drive rod (62) and the top bed frame (2) are connected. The upper bed rail servo motor (63) is fixedly connected to the inner wall of the top bed frame (2). The upper bed rail servo motor (63) can drive the upper bed rail drive rod (62) to rotate, thereby causing the upper bed rail (6) to rotate at a certain angle. The upper bed rail servo motor (63) is connected to and controlled by the controller (8). A limiting block (612) is provided at the bottom of the end of the connecting plate (61) away from the round hole (611). The limiting block (612) is fixedly connected to the top bed frame (2).

8. A hospital bed according to claim 1, characterized in that, [the bed is designed for self-adjustment and has anti-fall-off function] Two drive plates (71) are provided between the lower bed rail (7) and the top bed frame (2). The center lines of the two drive plates (71) are parallel to each other. The top end of the drive plate (71) is hinged to the bottom end of the lower bed rail (7), and the bottom end of the drive plate (71) is hinged to the outer side of the top bed frame (2). Each drive plate (71) is provided with a lower bed rail drive rod (72) at the hinge point between it and the top bed frame (2). The lower bed rail drive rod (72) passes through the top bed frame (2). The lower bed rail drive rod (72) extends into the top bed frame (2) and is connected to the lower bed rail servo motor (73). The lower bed rail servo motor (73) and the top bed frame (2) can rotate relative to each other. The lower bed rail servo motor (73) is fixedly connected to the inner wall of the top bed frame (2). The lower bed rail servo motor (73) can drive the lower bed rail drive rod (72) to rotate, thereby driving the lower bed rail (7) to move. The lower bed rail servo motor (73) is connected to and controlled by the controller (8).

9. A hospital bed according to claim 1, characterized in that, [the bed is designed for self-adjustment and has an anti-fall-off function] The control button module (9) is connected to the controller (8). The controller (8) is equipped with a microcontroller. The control button module (9) sends control signals to the microcontroller in the controller (8). After processing by the microcontroller, the electric push rod (47), the lifting electric push rod (5), the upper bed rail servo motor (63), and the lower bed rail servo motor (73) are controlled to make corresponding length changes or rotations. The control button module (9) has five buttons: button one (91), button two (92), button three (93), button four (94), and button five (95). Button one (91) controls the electric push rod (47) to shorten, and button two (92) controls the electric push rod (47) to shorten. When the bed is extended, button three (93) controls the lifting electric push rod (5) to rise, while the upper bed rail servo motor (63) and the lower bed rail servo motor (73) rotate at a certain angle. Button four (94) controls the lower bed rail servo motor (73) to rotate at a certain angle so that the lower bed rail (7) is lowered to the lowest position. Button five (95) controls the upper bed rail servo motor (63) and the lower bed rail servo motor (73) to rotate at a certain angle so that the lower bed rail (7) and the upper bed rail (6) are reset. The lifting electric push rod (5) is controlled to descend so that the upper bed board (31) is restored to flatness. The control button module (9) is fixedly installed on the upper surface of the upper bed rail (6) located on the right side of the patient when lying supine.

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