Nursing bed

Abstract

Provided in the present application is a nursing bed, comprising a bed frame; and a lifting assembly, comprising a first lifting frame and a second lifting frame, the first lifting frame and the second lifting frame being provided at intervals under the bed frame in the length direction of the bed frame. The first lifting frame comprises a first lifting driving member, a first driving rod assembly and lifting rods, the two ends of the first driving rod assembly being respectively hinged to the bed frame and the middle portions of the lifting rods, the upper ends of the lifting rods being slidably provided on the bed frame in the length direction of the bed frame, travel rollers being provided at the lower ends of the lifting rods, the upper end of the first lifting driving member being hinged to the bed frame, and the lower end of the first lifting driving member being drivingly connected to the middle portion of the first driving rod assembly, such that the first driving rod assembly can rotate relative to the bed frame. When the nursing bed is in the highest position, the height difference between the bed frame and the ground is between 800 mm and 850 mm; and when the nursing bed is in the lowest position, the height difference between the bed frame and the ground is between 120 mm and 200 mm. The solution can solve the problem of inconvenient operation for nursing personnel.

Description

Nursing bed Technical Field

[0001] The present application relates to the technical field of nursing beds, and in particular to a nursing bed.

[0002] This application claims priority to the patent application filed with the State Intellectual Property Office of China on September 8, 2023, with application number 2023224536956 and invention name “Nursing Bed”.

[0003] This application claims priority to a patent application filed with the State Intellectual Property Office of China on September 7, 2023, with application number 2023224411857 ​​and invention name “Wheel device and nursing bed with same”.

[0004] This application claims priority to the patent application filed with the State Intellectual Property Office of China on September 8, 2023, with application number 2023224585914 and invention name “Nursing Bed”. Background Art

[0005] A nursing bed is a medical device used for rest and recuperation of patients or elderly people with limited mobility. It has multiple postures and can meet the user's various nursing needs, especially the ultra-low bed with a lower height.

[0006] In related technologies, ultra-low beds can realize the lifting function. At the lowest height, they can reduce the user's risk of falling out of bed, and at the highest height, they can facilitate care by nursing staff.

[0007] However, in order to lower the minimum height of the ultra-low bed, the lifting stroke is sacrificed, resulting in a lower maximum height. When providing care, caregivers often need to bend over to operate, causing health problems such as lumbar muscle strain.

[0008] Summary of the Invention

[0009] The present application provides a nursing bed to solve the problem of inconvenience in operation for nursing staff in the related art.

[0010] The present application provides a nursing bed, comprising: a bed body including a bed frame; a lifting assembly including a first lifting frame and a second lifting frame, the first lifting frame and the second lifting frame being spaced apart below the bed frame along the length direction of the bed frame, the first lifting frame including a first lifting drive member, a first drive rod assembly, and a lifting rod, the ends of the first drive rod assembly being hinged to the bed frame and the middle portion of the lifting rod, respectively, the upper end of the lifting rod being slidably disposed on the bed frame along the length direction of the bed frame, the lower end of the lifting rod being provided with a running wheel, the upper end of the first lifting drive member being hinged to the bed frame, and the lower end of the first lifting drive member being drivingly connected to the middle portion of the first drive rod assembly so as to rotate the first drive rod assembly relative to the bed frame; wherein, when the first lifting frame and the second lifting frame are in a retracted limit position, the nursing bed is in a lowest position, and when the first lifting frame and the second lifting frame are in a support limit position, the nursing bed is in a highest position, when the nursing bed is in the highest position, the height difference between the bed frame and the ground is between 800 mm and 850 mm, and when the nursing bed is in the lowest position, the height difference between the bed frame and the ground is between 120 mm and 200 mm.

[0011] Furthermore, a slider is provided at the upper end of the lifting rod, and a slide rail extending along the length direction of the bed frame is provided, and the slider is slidably provided in the slide rail.

[0012] Furthermore, limit pins are provided at both ends of the slide rail, and the limit pins can cooperate with the slider to limit the position.

[0013] Furthermore, the first drive rod assembly includes a first transmission rod, a second transmission rod and a driving cross rod. The first transmission rod and the second transmission rod are spaced apart along the width direction of the bed frame. The two ends of the driving cross rod are respectively connected to the first transmission rod and the second transmission rod. The lower end of the first lifting drive member is hinged to the middle part of the driving cross rod. The lifting rod includes a first lifting rod and a second lifting rod. The upper end of the first lifting rod and the upper end of the second lifting rod are both hinged to the bed frame. The lower end of the first transmission rod is hinged to the middle part of the first lifting rod, the lower end of the second transmission rod is hinged to the middle part of the second lifting rod, and the upper end of the first transmission rod and the upper end of the second transmission rod are both hinged to the bed frame.

[0014] Furthermore, the first driving rod assembly is hinged to the bed frame at a first position, the lifting rod is movably connected to the bed frame at a second position, the first lifting driving member is hinged to the bed frame at a third position, and the second position is located between the first position and the third position.

[0015] Furthermore, the second lifting frame has the same structure as the first lifting frame. The second lifting frame includes a second lifting drive member, a second drive rod assembly and a second lifting rod assembly. The two ends of the second drive rod assembly are respectively hinged to the bed frame and the middle part of the second lifting rod assembly. The upper end of the second lifting rod assembly is slidably arranged on the bed frame along the length direction of the bed frame. The lower end of the second lifting rod assembly is provided with a walking wheel. The upper end of the second lifting drive member is hinged to the bed frame, and the lower end of the second lifting drive member is drivingly connected to the middle part of the second drive rod assembly so that the second drive rod assembly can rotate relative to the bed frame.

[0016] Furthermore, the bed frame includes a frame, a weighing frame and a weighing sensor. The frame is arranged around the outer periphery of the weighing frame, the weighing sensor is arranged between the frame and the weighing frame, the weighing sensor is connected to the frame and the weighing frame respectively, the upper end of the first lifting drive member and the upper end of the first drive rod assembly are both hinged to the weighing frame, and the upper end of the lifting rod can be slidably set on the weighing frame.

[0017] Furthermore, the frame and the weighing frame are flush with each other; and / or, the weighing sensor includes a body and an adapter plate, the body is connected to the frame, and two ends of the adapter plate are respectively connected to the body and the weighing frame.

[0018] Furthermore, the bed body also includes a back support plate, a hip support plate and a leg support plate, and the nursing bed also includes a backboard transmission assembly, a leg board transmission assembly, a backboard drive and a leg board drive. The back support plate, the hip support plate and the leg support plate are arranged in sequence along the length direction of the bed frame, the first end of the back support plate is freely arranged, the second end of the back support plate is hinged to the bed frame through the backboard transmission assembly, the hip support plate is fixedly arranged on the bed frame, the first end of the leg support plate is hinged to the bed frame through the leg board transmission assembly, and the second end of the leg support plate is hinged to the bed frame, the backboard drive is located below the back support plate, and the two ends of the backboard drive are respectively hinged to the back support plate and the bed frame, the leg board drive is located below the leg support plate, and the two ends of the leg board drive are respectively hinged to the bed frame and the leg support plates, the backboard drive can drive the back support plate to rotate relative to the bed frame, and the leg board drive can drive the leg support plate to rotate relative to the bed frame.

[0019] Furthermore, the leg support board includes a thigh board and a calf board. The first end of the thigh board is hinged to the bed frame through the leg board transmission assembly, the second end of the thigh board is hinged to the first end of the calf board, and the second end of the calf board is hinged to the bed frame. The two ends of the leg board driving member are respectively hinged to the bed frame and the thigh board, and the angle between the thigh board and the back support board is greater than 90°.

[0020] Furthermore, the backboard transmission assembly includes a first transmission arm and a second transmission arm, the second transmission arm is located between the first transmission arm and the buttocks support plate, the two ends of the first transmission arm are respectively hinged to the back support plate and the bed frame, and the two ends of the second transmission arm are respectively hinged to the back support plate and the bed frame; the leg board transmission assembly includes a third transmission arm and a fourth transmission arm, the third transmission arm is located between the fourth transmission arm and the buttocks support plate, the two ends of the third transmission arm are respectively hinged to the thigh board and the bed frame, and the two ends of the fourth transmission arm are respectively hinged to the thigh board and the bed frame; the buttocks support plate includes a plate body and a connecting plate, the plate body and the bed frame are fixedly connected, the connecting plate is connected to the bottom of the plate body and extends along the length direction of the bed frame, the backboard drive member and the leg board drive member are respectively hinged to the two ends of the connecting plate.

[0021] Furthermore, the second transmission arm includes a first section and a second section that are connected and set at an angle, the first section is hinged to the second end of the back support plate, the second section is hinged to the bed frame, and the connection between the first section and the second section is away from the first transmission arm; the third transmission arm includes a third section and a fourth section that are connected and set at an angle, the third section is hinged to the second end of the thigh plate, the fourth section is hinged to the bed frame, and the connection between the third section and the fourth section is away from the fourth transmission arm.

[0022] Furthermore, the nursing bed also includes a collection component and a control component. The collection component is arranged on the bed frame and can collect vital sign information. The control component includes a control panel and a controller. The controller is signal-connected with the control panel, the first lifting drive component, the second lifting drive component, the backboard drive component, the leg board drive component and the collection component respectively. The bed frame has multiple positions. The control panel has a vital sign monitoring key, a call key and multiple position adjustment keys. The controller is signal-connected with the vital sign monitoring key, the call key and the multiple position adjustment keys. The controller controls the working state of the collection component according to the trigger state of the vital sign monitoring key, sends a call signal according to the trigger state of the call key, and controls the bed frame to switch between multiple positions according to the trigger state of the multiple position adjustment keys.

[0023] Furthermore, the call button includes a conventional call button, the control component also includes a first screen arranged at the nurse station, and the controller includes a panel controller, which sends a display signal to the first screen according to the triggering state of the conventional call button.

[0024] Furthermore, the call button also includes an emergency call button, and the nursing bed also includes an alarm component arranged on the bed body. The panel controller is connected to the alarm component signal, and the panel controller sends an alarm signal to the alarm component according to the triggering state of the emergency call button.

[0025] Furthermore, the collection component includes a weighing sensor, the bed frame includes a frame and a weighing frame, the frame is arranged around the outer periphery of the weighing frame, the weighing sensor is arranged between the frame and the weighing frame, the weighing sensor is connected to the frame and the weighing frame respectively, the upper end of the first lifting drive component, the upper end of the first drive rod assembly, the upper end of the second lifting drive component and the upper end of the second drive rod assembly are all hinged to the weighing frame, the upper end of the first lifting rod assembly and the upper end of the second lifting rod assembly can be slidably set on the weighing frame; the vital sign monitoring key also includes a weighing key, the controller includes a weighing controller, the weighing controller is connected to the panel controller signal, the weighing controller controls the working state of the weighing sensor according to the trigger state of the weighing key, and / or, the weighing controller can control the working state of the alarm component according to the detection data of the weighing sensor; and / or, the alarm component includes a display light and / or a buzzer, the weighing controller and the panel controller are respectively connected to the display light signal, and the weighing controller and the panel controller are respectively connected to the buzzer signal.

[0026] Furthermore, the collection component includes a vital sign sensor arranged on the bed frame and capable of collecting heart rate, the vital sign monitoring key includes a heart rate monitoring key, and the panel controller can control the working state of the vital sign sensor according to the trigger state of the heart rate monitoring key.

[0027] Furthermore, the controller also includes a drive controller, which is electrically connected to the first lifting drive member and the second lifting drive member respectively. The body position includes a highest position and a lowest position. The body position adjustment keys include a bed up key and a bed down key. The drive controller controls the working state of the first lifting drive member and the second lifting drive member according to the trigger state of the bed up key and the trigger state of the bed down key to move the bed frame between the highest position and the lowest position.

[0028] Furthermore, the body position also includes a rescue position in which the foot of the bed frame is higher than the head of the bed frame, and a getting-up position in which the head of the bed is higher than the foot of the bed. The body position adjustment keys include a head of bed raising key and a foot of bed raising key. The drive controller controls the working state of the first lifting drive member and the working state of the second lifting drive member according to the triggering state of the head of bed raising key and the triggering state of the foot of bed raising key to move the bed frame between the rescue position and the getting-up position; when the bed frame is in the getting-up position, the distance between the foot of the bed and the ground is greater than or equal to 20 cm, and when the bed frame is in the rescue position, the distance between the head of the bed and the ground is greater than or equal to 20 cm.

[0029] Furthermore, the controller also includes a drive controller, which is electrically connected to the backboard drive component, the body position adjustment keys include a back raising key and a back lowering key, the body position includes a back support position and a back flat position, and the drive controller controls the working state of the backboard drive component according to the triggering state of the back raising key and the triggering state of the back lowering key, so that the bed frame moves between the back support position and the back flat position; the drive controller is electrically connected to the leg board drive component, the body position adjustment keys include a leg raising key and a leg lowering key, the body position includes a leg support position and a leg flat position, and the drive controller controls the working state of the leg board drive component according to the triggering state of the leg raising key and the triggering state of the leg lowering key, so that the bed frame moves between the leg support position and the leg flat position.

[0030] Furthermore, the body position adjustment keys also include a sitting position key and a lying flat key. The body positions include a sitting position in which the legs and back are raised at the same time and a lying flat position in which the legs and back are laid flat at the same time. The drive controller controls the working state of the leg board drive and the working state of the back board drive according to the trigger state of the sitting key and the trigger state of the lying flat key, so that the bed frame moves between the sitting position and the lying flat position.

[0031] Furthermore, the body position also includes a rescue position in which the foot of the bed frame is higher than the head of the bed frame, and the body position adjustment key also includes a one-button rescue, and the drive controller controls the working state of the first lifting drive member, the working state of the second lifting drive member, the working state of the leg board drive member, and the working state of the backboard drive member according to the trigger state of the one-button rescue, so as to move the bed frame to the rescue position; and / or, the body position adjustment key also includes a one-button lie flat, and the drive controller controls the working state of the first lifting drive member, the working state of the second lifting drive member, the working state of the leg board drive member, and the working state of the backboard drive member according to the trigger state of the one-button lie flat, so as to move the bed frame to the lowest position.

[0032] Furthermore, the control component also includes a second screen, which is arranged on the control panel and is connected to the controller signal.

[0033] Furthermore, the traveling wheel includes: a base, including a crossbeam assembly and wheels arranged at both ends of the crossbeam assembly; a brake assembly, including a brake rod and brake shafts arranged at both ends of the brake rod, the brake rod and the crossbeam assembly are spaced apart, the wheel is located on one side of the corresponding brake shaft, the two ends of the brake rod are respectively driven and connected to the corresponding brake shaft, so that the brake shaft can be movably arranged vertically in the crossbeam assembly, the brake shaft has a braking state in which it contacts the ground and makes the wheel leave the ground, and an unlocking state away from the ground and makes the wheel contact the ground, and the brake rod can drive the brake shaft to switch between the braking state and the unlocking state.

[0034] Furthermore, the brake assembly also includes a lifting plate and a driving plate. The brake rod is rotatably arranged in the crossbeam assembly. The brake rod is connected to the lifting plate or the driving plate. The upper end of the lifting plate is hinged to the crossbeam assembly. The upper end of the driving plate is hinged to the lower end of the lifting plate. The lower end of the driving plate is hinged to the brake shaft and can drive the brake shaft to move.

[0035] Furthermore, the lifting plate can cooperate with the driving plate in a limiting manner to limit the rotation of the driving plate relative to the lifting plate when the brake shaft is in a braking state.

[0036] Furthermore, the lifting plate and the driving plate are both U-shaped plate structures, the upper end of the driving plate penetrates into the lifting plate, and the inner wall of the lifting plate can be limitedly matched with the outer wall of the driving plate.

[0037] Furthermore, the lifting plate can cooperate with the crossbeam assembly to limit the rotation of the lifting plate relative to the crossbeam assembly when the brake shaft is in the unlocked state.

[0038] Furthermore, the brake assembly also includes an adjusting bolt, which is vertically penetrated through the crossbeam assembly and can abut against the upper end of the lifting plate.

[0039] Furthermore, the brake assembly also includes a lifting shaft and a reset member. The lifting shaft is laterally inserted into the brake shaft. The lower end of the drive plate is hinged to the brake shaft through the lifting shaft. The reset member is sleeved on the brake shaft. The two ends of the reset member are respectively in contact with the lifting shaft and the crossbeam assembly.

[0040] Furthermore, the crossbeam assembly includes a beam body, a wheel seat and a brake seat. Wheel seats and brake seats are provided at both ends of the beam body. The wheel seats and brake seats are connected. The wheels are provided on the wheel seats. The brake shaft is vertically movably provided through the wheel seats and the brake seats. The upper end of the lifting plate is hinged to the brake seat.

[0041] Furthermore, the brake seat includes a top plate, a bottom plate and a vertical plate. The top plate and the bottom plate both extend horizontally. The top plate is located above the bottom plate. The two ends of the vertical plate are respectively connected to the top plate and the bottom plate. The brake shaft is vertically penetrated through the top plate and the bottom plate. The upper end of the lifting plate is hinged to the top plate, and the vertical plate is connected to the wheel seat.

[0042] Furthermore, the traveling wheel also includes a protective cover, which is arranged above the ends of the brake assembly and the crossbeam assembly and is connected to the base. An indicator light is provided on the protective cover, which can indicate the working status of the brake shaft; and / or an operating handle is provided on the brake lever.

[0043] Applying the technical solution of the present application, a nursing bed includes a bed frame and a lifting assembly. When adjusting the height of the nursing bed, the first lifting drive member drives the first drive rod assembly to rotate relative to the bed frame, and the first drive rod assembly then drives the lifting rod to rotate relative to the bed frame. Simultaneously, the upper end of the lifting rod slides along the length of the bed frame, thereby achieving the raising and lowering of the bed frame. Since the nursing bed is in its lowest position when the first and second lifting frames are in their recovery limit positions, and in its highest position when the first and second lifting frames are in their support limit positions, when the nursing bed is in its lowest position, the height difference between the bed frame and the ground is between 120mm and 200mm. The nursing bed has the function of an ultra-low bed, which can prevent patients from falling. When the nursing bed is in its highest position, the height difference between the bed frame and the ground is between 800mm and 850mm, allowing caregivers to provide care for patients without having to bend over. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0045] FIG1 is a schematic structural diagram of a nursing bed in the highest position according to an embodiment of the present application;

[0046] FIG2 is a schematic structural diagram of a nursing bed in the lowest position according to an embodiment of the present application;

[0047] FIG3 shows a schematic structural diagram of a nursing bed in a sitting position according to an embodiment of the present application;

[0048] FIG4 shows a bottom view of a nursing bed in a lying position according to an embodiment of the present application;

[0049] FIG5 shows another structural schematic diagram of a nursing bed provided in an embodiment of the present application in the highest position;

[0050] FIG6 shows another structural schematic diagram of a nursing bed provided in an embodiment of the present application in the highest position;

[0051] FIG7 shows a schematic structural diagram of a control panel of a nursing bed according to an embodiment of the present application;

[0052] FIG8 shows a control diagram of a nursing bed provided according to an embodiment of the present application;

[0053] FIG9 shows a schematic structural diagram of the running wheels of a nursing bed according to an embodiment of the present application;

[0054] FIG10 is a schematic structural diagram of a wheel seat and a brake assembly of a traveling wheel of a nursing bed provided according to an embodiment of the present application;

[0055] FIG11 shows another structural schematic diagram of the wheel seat and brake assembly of the running wheel of the nursing bed provided according to an embodiment of the present application;

[0056] FIG12 is a cross-sectional view showing a braking state of a brake shaft of a traveling wheel of a nursing bed provided in accordance with an embodiment of the present application;

[0057] Figure 13 shows a cross-sectional view of the brake shaft of the running wheel of the nursing bed provided in an embodiment of the present application in an unlocked state.

[0058] The above drawings include the following reference numerals:

[0059] 10. Bed frame; 11. Slide rail; 111. Limit pin; 12. Frame; 13. Weighing rack; 14. Weighing sensor; 15. Alarm;

[0060] 20. Lifting assembly; 21. First lifting frame; 211. First lifting drive member; 212. First drive rod assembly; 2121. First transmission rod; 2122. Second transmission rod; 2123. Drive crossbar; 213. First lifting rod assembly; 2131. First lifting rod; 2132. Second lifting rod; 214. Travel wheel; 215. Slider; 22. Second lifting frame; 221. Second lifting drive member; 222. Second drive rod assembly; 223. Second lifting rod assembly;

[0061] 30. Back support plate; 31. Hip support plate; 311. Plate body; 312. Connecting plate; 32. Leg support plate; 321. Thigh plate; 322. Calf plate; 33. Back plate transmission assembly; 331. First transmission arm; 332. Second transmission arm; 3321. First section; 3322. Second section; 34. Leg plate transmission assembly; 341. Third transmission arm; 3411. Third section; 3412. Fourth section; 342. Fourth transmission arm; 35. Back plate drive member; 36. Leg plate drive member;

[0062] 40. Control component; 41. Controller; 411. Panel controller; 412. Weighing controller; 413. Drive controller;

[0063] 50. Vital sign monitoring key; 51. Weighing key; 52. Heart rate monitoring key;

[0064] 60. Call button; 61. Regular call button; 62. Emergency call button;

[0065] 70. Body position adjustment button; 71. Bed raise button; 72. Bed lower button; 73. Head of bed raise button; 74. Foot of bed raise button; 75. Back raise button; 76. Back lower button; 77. Leg raise button; 78. Leg lower button; 79. Sit button; 80. Lie flat button; 81. One-touch rescue button; 82. One-touch lie flat button;

[0066] 90. Second screen;

[0067] 100, base; 101, crossbeam assembly; 1011, beam body; 112, wheel seat; 113, brake seat; 1131, top plate; 1132, bottom plate; 1133, vertical plate; 120, wheel;

[0068] 200, brake assembly; 210, brake lever; 2101, operating handle; 220, brake shaft; 23, lifting plate; 24, driving plate; 25, adjusting bolt; 26, lifting shaft; 27, reset member;

[0069] 300. Protective cover. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0071] As shown in Figures 1 to 8, an embodiment of the present application provides a nursing bed, which includes a bed body and a lifting assembly 20. The bed body includes a bed frame 10, and the lifting assembly 20 includes a first lifting frame 21 and a second lifting frame 22. The first lifting frame 21 and the second lifting frame 22 are spaced apart below the bed frame 10 along the length direction of the bed frame 10. The first lifting frame 21 includes a first lifting drive member 211, a first driving rod assembly 212 and a first lifting rod assembly 213. The two ends of the first driving rod assembly 212 are respectively hinged to the middle of the bed frame 10 and the first lifting rod assembly 213. The upper end of the first lifting rod assembly 213 is slidably arranged on the bed frame 10 along the length direction of the bed frame 10. The first lifting rod assembly 21 3 is provided with a walking wheel 214, the upper end of the first lifting drive member 211 is hinged to the bed frame 10, and the lower end of the first lifting drive member 211 is drivingly connected to the middle part of the first driving rod assembly 212 to enable the first driving rod assembly 212 to rotate relative to the bed frame 10; wherein, when the first lifting frame 21 and the second lifting frame 22 are in the recovery limit position, the nursing bed is in the lowest position; when the first lifting frame 21 and the second lifting frame 22 are in the support limit position, the nursing bed is in the highest position; when the nursing bed is in the highest position, the height difference between the bed frame 10 and the ground is between 800mm and 850mm; when the nursing bed is in the lowest position, the height difference between the bed frame 10 and the ground is between 120mm and 200mm.

[0072] Applying the technical solution of the present application, a nursing bed includes a bed frame 10 and a lifting assembly 20. When adjusting the height of the nursing bed, a first lifting drive member 211 drives a first drive rod assembly 212 to rotate relative to the bed frame 10. The first drive rod assembly 212 then drives a first lifting rod assembly 213 to rotate relative to the bed frame 10. Simultaneously, the upper end of the first lifting rod assembly 213 slides along the length of the bed frame 10, thereby achieving the desired height adjustment. When the first and second lifting frames 21 and 22 are in their retracted limit positions, the nursing bed is in its lowest position. When the first and second lifting frames 21 and 22 are in their support limit positions, the nursing bed is in its highest position. When the nursing bed is in its lowest position, the height difference between the bed frame 10 and the ground is between 120 mm and 200 mm. This provides the nursing bed with the function of an ultra-low bed, preventing patients from falling. When the nursing bed is in its highest position, the height difference between the bed frame 10 and the ground is between 800 mm and 850 mm, enabling caregivers to provide care without bending over.

[0073] It should be noted that the structures of the first lifting frame 21 and the second lifting frame 22 may be identical or different. When the structures are different, the first lifting drive 211 in the first lifting frame 21 drives the first lifting rod assembly 213 upward and downward, while the first lifting drive 211 drives the second lifting frame 22 upward and downward. Of course, when the structures are identical, the second lifting frame 22 includes a second lifting drive, which is spaced apart from the first lifting drive 211 along the length of the bed frame 10.

[0074] In this embodiment, the first lifting drive member 211 is a linear drive, specifically, an electric push rod.

[0075] As shown in Figure 1, a slider 215 is provided at the upper end of the first lifting rod assembly 213. A slide rail 11 is provided on the bed frame 10 extending along its length, and the slider 215 is slidably disposed within the slide rail 11. The sliding arrangement in which the slider 215 and the slide rail 11 cooperate with each other has the advantages of a simple structure and easy installation.

[0076] As shown in Figure 1, limit pins 111 are provided at both ends of the slide rail 11, which can be limited and matched with the slider 215. The limit pins 111 can prevent the slider 215 from coming out of the slide rail 11, so that the slider 215 and the slide rail 11 maintain a sliding fit state.

[0077] As shown in Figure 1, the first driving rod assembly 212 includes a first transmission rod 2121, a second transmission rod 2122 and a driving cross rod 2123. The first transmission rod 2121 and the second transmission rod 2122 are spaced apart along the width direction of the bed frame 10. The two ends of the driving cross rod 2123 are respectively connected to the first transmission rod 2121 and the second transmission rod 2122. The lower end of the first lifting driving member 211 is hinged to the middle of the driving cross rod 2123. The first lifting rod assembly 213 includes a first lifting rod 2131 and a second lifting rod 2132. The upper end of the first lifting rod 2131 and the upper end of the second lifting rod 2132 are both hinged to the bed frame 10. The lower end of the first transmission rod 2121 is hinged to the middle of the first lifting rod 2131, the lower end of the second transmission rod 2122 is hinged to the middle of the second lifting rod 2132, and the upper end of the first transmission rod 2121 and the upper end of the second transmission rod 2122 are both hinged to the bed frame 10. The lifting assembly 20 with the above structure provides a more stable support for the bed frame 10 and prolongs the service life of the nursing bed.

[0078] In this embodiment, when the push rod of the first lifting drive member 211 extends relative to the cylinder body, the push rod drives the first transmission rod 2121 and the second transmission rod 2122 to rotate clockwise relative to the bed frame 10 via the driving cross rod 2123. The first transmission rod 2121 then drives the first lifting rod 2131 to rotate counterclockwise, and the second transmission rod 2122 then drives the second lifting rod 2132 to rotate counterclockwise. Simultaneously, the first lifting rod 2131 and the second lifting rod 2132 slide along the bed frame 10 near the upper end of the first transmission rod 2121, thereby raising the bed frame 10. Similarly, the process for lowering the bed frame 10 is the reverse of the above process.

[0079] Specifically, the first drive rod assembly 212 is hinged to the bed frame 10 at a first position, the first lifting rod assembly 213 is movably connected to the bed frame 10 at a second position, and the first lifting drive member 211 is hinged to the bed frame 10 at a third position, the second position being between the first and third positions. This structural arrangement allows the lifting assembly 20 to provide a more stable support for the bed frame 10.

[0080] It should be noted that since the first lifting rod assembly 213 is slidable along the length direction of the bed frame 10, the second position is the position of the first lifting rod assembly 213 in the bed frame 10 at any supporting moment, and between the recovery limit position and the support limit position, the second position is always between the first position and the third position.

[0081] In this embodiment, the second lifting frame 22 has the same structure as the first lifting frame 21. The above arrangement has the advantages of simple structure and stable support.

[0082] It should be noted that by adjusting the extension lengths of the push rods of the first lifting drive member 211 of the first lifting frame 21 and the second lifting drive member 221 of the second lifting frame 22 to be different, the posture switching of head-high and feet-low or head-low and feet-high can be achieved.

[0083] In this embodiment, the first lifting frame 21 and the second lifting frame 22 are symmetrically arranged along the length direction of the bed frame 10 .

[0084] As shown in FIG2 , the bed frame 10 includes a frame 12, a weighing frame 13, and a weighing sensor 14. The frame 12 is disposed around the outer periphery of the weighing frame 13, and the weighing sensor 14 is disposed between the frame 12 and the weighing frame 13. The weighing sensor 14 is connected to the frame 12 and the weighing frame 13, respectively. The upper end of the first lifting drive member 211 and the upper end of the first driving rod assembly 212 are both hinged to the weighing frame 13, and the upper end of the first lifting rod assembly 213 is slidably disposed on the weighing frame 13. The bed frame 10 employing the above-described structure can support the weight of a person using the frame 12, support the weighing frame 13 using the lifting assembly 20, and simultaneously weigh the person using the weighing sensor 14.

[0085] In this embodiment, a crossbeam extending along the width direction of the weighing frame 13 is provided in the middle thereof, and a support ear is provided on the crossbeam. The upper end of the first lifting drive member 211 is hinged to the weighing frame 13 through the support ear.

[0086] Specifically, the second lifting frame 22 includes a second lifting drive member 221, a second drive rod assembly 222 and a second lifting rod assembly 223. The two ends of the second drive rod assembly 222 are hinged to the bed frame 10 and the middle of the second lifting rod assembly 223 respectively. The upper end of the second lifting rod assembly 223 is slidably arranged on the bed frame 10 along the length direction of the bed frame 10. The lower end of the second lifting rod assembly 223 is provided with a walking wheel 214. The upper end of the second lifting drive member 221 is hinged to the bed frame 10, and the lower end of the second lifting drive member 221 is drivingly connected to the middle of the second drive rod assembly 222 so that the second drive rod assembly 222 can rotate relative to the bed frame 10.

[0087] In this embodiment, the upper end of the first lifting drive member 211, the upper end of the first driving rod assembly 212, the upper end of the second lifting drive member 221 and the upper end of the second driving rod assembly 222 are all hinged to the weighing frame 13, and the upper end of the first lifting rod assembly 213 and the upper end of the second lifting rod assembly 223 can be slidably set on the weighing frame 13.

[0088] As shown in FIG2 , the frame 12 and the weighing frame 13 are flush with each other. By adopting the above structure, the vertical distance between the frame 12 and the weighing frame 13 can be reduced, thereby making the bed frame 10 have a lower minimum height to realize the ultra-low bed function of the nursing bed.

[0089] In this embodiment, the upper surface of the frame 12 is flush with the upper surface of the weighing frame 13 , and the lower surface of the frame 12 is flush with the lower surface of the weighing frame 13 .

[0090] Specifically, the weighing sensor 14 includes a body and an adapter plate, the body is connected to the frame 12, and both ends of the adapter plate are respectively connected to the body and the weighing frame 13. The weighing sensor 14 adopting the above structure has the advantages of simple structure and easy installation.

[0091] As shown in Figures 3 and 5, the bed body also includes a back support plate 30, a hip support plate 31 and a leg support plate 32. The nursing bed also includes a back plate transmission assembly 33, a leg plate transmission assembly 34, a back plate drive 35 and a leg plate drive 36. The back support plate 30, the hip support plate 31 and the leg support plate 32 are arranged in sequence along the length direction of the bed frame 10. The first end of the back support plate 30 is freely set, and the second end of the back support plate 30 is hinged to the bed frame 10 through the back plate transmission assembly 33. The hip support plate 31 is fixedly set on the bed frame 10, and the first end of the leg support plate 32 The back support plate 30 is hingedly connected to the bed frame 10 at its end via a leg support plate transmission assembly 34. The second end of the leg support plate 32 is hingedly connected to the bed frame 10. A back support plate driver 35 is located below the back support plate 30. The two ends of the back support plate driver 35 are hingedly connected to the back support plate 30 and the bed frame 10, respectively. A leg support plate driver 36 is located below the leg support plate 32. The two ends of the leg support plate driver 36 are hingedly connected to the bed frame 10 and the leg support plate 32, respectively. The back support plate 30, the hip support plate 31, and the leg support plate 32 can respectively support the back, hips, and legs. Furthermore, the back support plate transmission assembly 33 and the back support plate driver 35 can be used to switch the posture of the back, while the leg support plate transmission assembly 34 and the leg support plate driver 36 can be used to switch the posture of the legs.

[0092] In this embodiment, the back support plate 30 , the hip support plate 31 , and the leg support plate 32 all form a connection structure with the frame 12 , so that the frame 12 supports the weight of the human body.

[0093] One end of the backboard driving member 35 can be hinged to the bed frame 10 or to the hip support plate 31 .

[0094] As shown in FIG5 , the leg support plate 32 includes a thigh plate 321 and a calf plate 322. The first end of the thigh plate 321 is hingedly connected to the bed frame 10 via the leg plate transmission assembly 34. The second end of the thigh plate 321 is hingedly connected to the first end of the calf plate 322. The second end of the calf plate 322 is hingedly connected to the bed frame 10. The ends of the leg plate drive 36 are respectively hingedly connected to the bed frame 10 and the thigh plate 321. With this structure, the thigh plate 321 is driven by the leg plate drive 36 to rotate relative to the bed frame 10, and the thigh plate 321 then drives the calf plate 322 to rotate relative to the bed frame 10, thereby achieving the angle adjustment between the thigh and calf.

[0095] In this embodiment, the second end of the calf board 322 is hinged to the bed frame 10 via a calf transmission plate.

[0096] Among them, the angle between the thigh board 321 and the back support board 30 is greater than 90°. The above angle setting can reduce the angle between the patient's legs and abdomen, thereby reducing the pressure on the patient's abdomen and enhancing the patient's usage experience.

[0097] As shown in Figures 3 and 4, the backboard transmission assembly 33 includes a first transmission arm 331 and a second transmission arm 332. The second transmission arm 332 is located between the first transmission arm 331 and the buttocks support plate 31. The two ends of the first transmission arm 331 are hinged to the back support plate 30 and the bed frame 10 respectively, and the two ends of the second transmission arm 332 are hinged to the back support plate 30 and the bed frame 10 respectively. The backboard transmission assembly 33 with the above structure uses the first transmission arm 331, the second transmission arm 332, the back support plate 30 and the bed frame 10 to form a four-linkage to make the movement of the back support plate 30 smoother.

[0098] As shown in Figures 3 and 4, the leg board transmission assembly 34 includes a third transmission arm 341 and a fourth transmission arm 342. The third transmission arm 341 is located between the fourth transmission arm 342 and the hip support plate 31. The two ends of the third transmission arm 341 are hinged to the thigh board 321 and the bed frame 10 respectively, and the two ends of the fourth transmission arm 342 are hinged to the thigh board 321 and the bed frame 10 respectively. The leg board transmission assembly 34 with the above structure uses the third transmission arm 341, the fourth transmission arm 342, the thigh board 321 and the bed frame 10 to form a four-linkage to make the movement of the thigh board 321 smoother.

[0099] In this embodiment, the hip support plate 31 comprises a plate body 311 and a connecting plate 312. The plate body 311 is fixedly connected to the bed frame 10. The connecting plate 312 is connected below the plate body 311 and extends along the length of the bed frame 10. The backrest drive 35 and the legrest drive 36 are hingedly connected to the ends of the connecting plate 312. The hip support plate 31 employing this structure has the advantages of being simple in structure and easy to connect. The connecting plate 312 and the plate body 311 can be welded or integrally formed.

[0100] In this embodiment, the backboard driver 35 and the legboard driver 36 are both linear actuators, specifically electric push rods. The backboard driver 35 is hinged to the free end of the back support plate 30, and the legboard driver 36 is hinged to the second end of the thigh plate 321.

[0101] Specifically, the push rod of the backboard driver 35 extends relative to the cylinder body, driving the back support board 30 to rotate counterclockwise relative to the bed frame 10. The push rod of the leg board driver 36 extends relative to the cylinder body, driving the thigh board 321 to rotate clockwise relative to the bed frame 10. The thigh board 321 simultaneously drives the calf board 322 to rotate counterclockwise relative to the bed frame 10. This allows the patient to switch from a lying position to a sitting position. The switching process from a sitting position to a lying position is the reverse of the above process.

[0102] As shown in Figure 4, the second transmission arm 332 includes a first section 3321 and a second section 3322 that are connected and set at an angle. The first section 3321 is hinged to the second end of the back support plate 30, and the second section 3322 is hinged to the bed frame 10. The connection between the first section 3321 and the second section 3322 is away from the first transmission arm 331. The second transmission arm 332 with the above structure can move the second end of the back support plate 30 away from the hip support plate 31 when switching to a sitting position, thereby protecting the abdomen from squeezing and making the patient more comfortable.

[0103] As shown in FIG4 , the third transmission arm 341 includes a third section 3411 and a fourth section 3412, which are connected and arranged at an angle. The third section 3411 is hinged to the second end of the thigh board 321, and the fourth section 3412 is hinged to the bed frame 10. The connection between the third section 3411 and the fourth section 3412 is away from the fourth transmission arm 342. The third transmission arm 341 with this structure can move the first end of the thigh board 321 away from the hip support board 31 when switching to a sitting position, thereby protecting the abdomen from compression and providing greater comfort for the patient.

[0104] In this embodiment, an armrest is provided on the side of the bed frame 10. The armrest can be stored under the bed frame 10 and is parallel to the bed frame 10. When the armrest is vertically positioned on the side of the bed frame 10, it is convenient for the patient to support himself.

[0105] As shown in Figures 7 and 8, the nursing bed also includes a collection component and a control component 40. The collection component is arranged on the bed frame 10 and can collect vital sign information. The control component 40 includes a control panel and a controller 41. The controller 41 is signal-connected to the control panel, the first lifting drive 211, the second lifting drive 221, the backboard drive 35, the leg board drive 36 and the collection component respectively. The bed frame 10 has multiple positions. The control panel is provided with a vital sign monitoring key 50, a call key 60 and multiple position adjustment keys 70. The controller 41 is signal-connected to the vital sign monitoring key 50, the call key 60 and the multiple position adjustment keys 70. The controller 41 controls the working state of the collection component according to the trigger state of the vital sign monitoring key 50, sends a call signal according to the trigger state of the call key 60, and controls the bed frame 10 to switch between multiple positions according to the trigger state of the multiple position adjustment keys 70.

[0106] By applying the technical solution of the present application, when using a nursing bed, by triggering the vital sign monitoring key 50, the controller 41 can control the working state of the collection component to collect the user's vital sign information. By triggering the call key 60, the controller 41 can send a call signal to call a nurse. By triggering the position adjustment key 70, the controller 41 can control the working state of the drive component to switch the bed frame 10 between multiple positions. Through this nursing bed, the three major functions of bed control, vital sign monitoring, and calling are integrated, greatly reducing the hospital's layout costs and communication costs, while simplifying the operation of nursing staff.

[0107] In related technologies, hospitals seeking to integrate bed control, vital sign monitoring, and call center functions must work together with the bed manufacturer, the call center system manufacturer, and the vital sign monitoring manufacturer. Furthermore, these three systems are not interconnected, requiring extensive manual record-keeping to synchronize information. However, the use of the nursing bed in this embodiment reduces both layout and communication costs for hospitals.

[0108] It should be noted that the controller 41 can integrate the control of the three major functions of bed control, vital sign monitoring and call, or set a separate controller for each function.

[0109] As shown in FIG7 , the call button 60 includes a conventional call button 61. The control assembly 40 also includes a first screen located at the nurse's station. The controller 41 includes a panel controller 411. The panel controller 411 sends a display signal to the first screen based on the triggering state of the conventional call button 61. The conventional call button 61 enables a user to call a caregiver for common scenarios such as changing dressings, turning the patient over, or providing nursing care.

[0110] In this embodiment, a green icon indicating a nurse call will be displayed on the first screen of the nurse station. The nurse can then close the call by operating the system at the nurse station or by operating the system at the nurse station in the ward.

[0111] As shown in FIG7 , the call button 60 also includes an emergency call button 62. The nursing bed also includes an alarm element 15 disposed on the bed. The panel controller 411 is signal-connected to the alarm element 15. The panel controller 411 sends an alarm signal to the alarm element 15 based on the triggering status of the emergency call button 62. The emergency call button 62 can be used to make an emergency call to the nursing staff, prompting the nursing staff to take emergency action.

[0112] In the event of an emergency call, the nurse can only go to the ward and shut it down at the nurse station.

[0113] As shown in Figures 2 and 7, the vital sign monitoring key 50 also includes a weighing key 51, and the controller 41 includes a weighing controller 412. The weighing controller 412 is connected to the panel controller 411 by signal. The weighing controller 412 controls the working state of the weighing sensor 14 according to the triggering state of the weighing key 51. By triggering the weighing key 51, the weighing sensor 14 can be used to weigh the human body.

[0114] The weighing controller 412 can control the working state of the alarm 15 according to the detection data of the weighing sensor 14. At night, the weighing sensor 14 detects the user's weight and can control the alarm 15 to work after the user leaves the bed, thereby alerting the caregiver to prevent the user from falling out of bed.

[0115] In this embodiment, the nursing bed has a separate weighing box, and the weighing controller 412 is arranged in the weighing box to realize the weighing function.

[0116] Specifically, the alarm component 15 includes a display light or a buzzer, and the weighing controller 412 and the panel controller 411 are respectively connected to the display light signal, and the weighing controller 412 and the panel controller 411 are respectively connected to the buzzer signal. The use of the above-mentioned alarm component 15 has the advantage of low cost.

[0117] As shown in FIG7 , the data collection component includes a vital sign sensor mounted on the bed frame 10 and capable of collecting heart rate data. The vital sign monitoring key 50 includes a heart rate monitoring key 52. ​​The panel controller 411 controls the operating state of the vital sign sensor based on the triggering state of the heart rate monitoring key 52. ​​The vital sign sensor can be used to collect the user's heart rate.

[0118] In this embodiment, the vital sign sensor is disposed on the mattress of the bed frame 10 and transmits vital sign data to the control panel via Bluetooth.

[0119] As shown in Figures 1, 7, and 8, the controller 41 further includes a drive controller 413, which is electrically connected to the first lifting drive member 211 and the second lifting drive member 221, respectively. The body position includes a highest position and a lowest position. The body position adjustment key 70 includes a bed raising key 71 and a bed lowering key 72. The drive controller 413 controls the working state of the first lifting drive member 211 and the second lifting drive member 221 according to the triggering state of the bed raising key 71 and the triggering state of the bed lowering key 72, so as to move the bed frame 10 between the highest position and the lowest position. By triggering the bed raising key 71 or the bed lowering key 72, the first lifting drive member 211 and the second lifting drive member 221 can be controlled by the drive controller 413 to move, thereby realizing the movement of the bed frame 10 between the highest position and the lowest position.

[0120] In this embodiment, the first lifting drive member 211 can adjust the distance between the head of the bed frame 10 and the ground, and the second lifting drive member 221 can adjust the distance between the foot of the bed frame 10 and the ground.

[0121] As shown in FIG1 , FIG7 and FIG8 , the body position also includes a rescue position in which the foot of the bed frame 10 is higher than the head of the bed and a standing position in which the head of the bed is higher than the foot of the bed. The body position adjustment key 70 includes a head of bed raising key 73 and a foot of bed raising key 74. The drive controller 413 controls the operating state of the first lifting drive 211 and the operating state of the second lifting drive 221 according to the triggering state of the head of bed raising key 73 and the triggering state of the foot of bed raising key 74, so as to move the bed frame 10 between the rescue position and the standing position. By triggering the head of bed raising key 73, the first lifting drive 211 can be used to control the distance between the head of the bed and the ground. By triggering the foot of bed raising key 74, the second lifting drive 221 can be used to control the distance between the foot of the bed and the ground.

[0122] When the bed frame 10 is in the rising position, the distance between the foot of the bed and the ground is greater than or equal to 20 cm. When the bed frame 10 is in the emergency position, the distance between the head of the bed and the ground is greater than or equal to 20 cm. This distance prevents the bed frame 10 from pressing on the feet when in the rising position and from causing head damage when in the emergency position. It should be noted that when the bed frame 10 is in the lowest position, adjustment to the rising position or emergency position is only possible when the head or foot of the bed is raised to 20 cm.

[0123] As shown in Figures 3, 7, and 8, the controller 41 further includes a drive controller 413, which is electrically connected to the backboard drive 35. The body position adjustment keys 70 include a back raising key 75 and a back lowering key 76. Body positions include a back support position and a back flat position. The drive controller 413 controls the operating state of the backboard drive 35 according to the triggering state of the back raising key 75 and the triggering state of the back lowering key 76, so as to move the bed frame 10 between the back support position and the back flat position. By triggering the back raising key 75 or the back lowering key 76, the operating state of the backboard drive 35 can be controlled by the drive controller 413, thereby causing the bed frame 10 to move between the back support position and the back flat position.

[0124] As shown in Figures 3, 7, and 8, the drive controller 413 is electrically connected to the leg board driver 36. The body position adjustment key 70 includes a leg raising key 77 and a leg lowering key 78. The body position includes a leg support position and a leg flat position. The drive controller 413 controls the operating state of the leg board driver 36 according to the triggering state of the leg raising key 77 and the triggering state of the leg lowering key 78, so as to move the bed frame 10 between the leg support position and the leg flat position. By triggering the leg raising key 77 or the leg lowering key 78, the operating state of the leg board driver 36 can be controlled by the drive controller 413, thereby moving the bed frame 10 between the leg support position and the leg flat position.

[0125] As shown in Figures 3, 7, and 8, the body position adjustment key 70 further includes a sitting position key 79 and a lying position key 80. Body positions include a sitting position in which the legs and back are simultaneously raised, and a lying position in which the legs and back are simultaneously laid flat. The drive controller 413 controls the operating state of the leg board driver 36 and the operating state of the back board driver 35 according to the triggering state of the sitting position key 79 and the triggering state of the lying position key 80, so as to move the bed frame 10 between the sitting position and the lying position. By triggering the lying position key 80, the drive controller 413 can control the operating state of the leg board driver 36 and the operating state of the back board driver 35, so as to move the bed frame 10 to the lying position.

[0126] As shown in Figures 1, 3, 7 and 8, the body position also includes a rescue position in which the foot of the bed frame 10 is higher than the head of the bed frame 10. The body position adjustment key 70 also includes a one-key rescue 81. The drive controller 413 controls the working state of the first lifting drive 211, the working state of the second lifting drive 221, the working state of the leg board drive 36 and the working state of the backboard drive 35 according to the trigger state of the one-key rescue 81, so as to move the bed frame 10 to the rescue position. Moving the bed frame 10 to the rescue position through the one-key rescue 81 has the advantages of convenience and speed.

[0127] As shown in Figures 1, 3, 7, and 8, the body position adjustment key 70 also includes a one-touch lie-flat key 82. The drive controller 413 controls the operating states of the first lift driver 211, the second lift driver 221, the leg board driver 36, and the backboard driver 35 based on the triggering state of the one-touch lie-flat key 82 to move the bed frame 10 to the lowest position. Using the one-touch lie-flat key 82 to move the bed frame 10 to the lowest position is convenient and quick.

[0128] As shown in FIG7 , the control assembly 40 further includes a second screen 90, which is provided on the control panel and is signal-connected to the controller 41. The second screen 90 can display function icons corresponding to different function keys to remind people of the current status of the nursing bed.

[0129] As shown in Figures 9 to 13, the walking wheel 214 includes a base 100 and a brake assembly 200. The base 100 includes a beam assembly 101 and wheels 120 arranged at both ends of the beam assembly 101; the brake assembly 200 includes a brake rod 210 and brake shafts 220 arranged at both ends of the brake rod 210. The brake rod 210 is spaced apart from the beam assembly 101, and the wheel 120 is located on one side of the corresponding brake shaft 220. The two ends of the brake rod 210 are respectively driven and connected to the corresponding brake shaft 220 so that the brake shaft 220 can be movably arranged vertically in the beam assembly 101. The brake shaft 220 has a braking state in which it contacts the ground and keeps the wheel 120 off the ground, and an unlocking state in which it is away from the ground and keeps the wheel 120 in contact with the ground. The brake rod 210 can drive the brake shaft 220 to switch between the braking state and the unlocking state.

[0130] Applying the technical solution of the present application, the running wheel 214 includes a base 100 and a brake assembly 200. When the nursing bed needs to be braked, the brake lever 210 drives the brake shaft 220 to move vertically downward, so that the brake shaft 220 moves from an unlocked state away from the ground to a braked state in contact with the ground. At this time, the wheel 120 moves from contacting the ground to being separated from the ground, thereby braking the nursing bed. When the nursing bed needs to be moved, the brake lever 210 drives the brake shaft 220 to move vertically upward, so that the brake shaft 220 moves from a braked state in contact with the ground to an unlocked state away from the ground. At this time, the wheel 120 moves from being separated from the ground to being in contact with the ground, thereby moving the nursing bed. Since wheels 120 are provided at both ends of the crossbeam assembly 101, both brake shafts 220 can be driven by a single brake lever 210 to achieve braking and movement of the nursing bed. Operation is simpler.

[0131] In this embodiment, the lower end of the brake shaft 220 is connected to a brake block made of a rubber-coated screw, thereby increasing the friction with the ground and providing a certain amount of buffering.

[0132] Among them, the brake lever 210 can be directly connected to the brake shaft 220. When the caregiver operates the brake lever 210, the brake shaft 220 is directly driven to move vertically by the brake lever 210. An additional transmission part can also be set. When the brake lever 210 moves, the brake shaft 220 is driven to move through the transmission part.

[0133] Specifically, wheels 120 are provided on both sides of the brake shaft 220. The wheels 120 are universal wheels. When the brake lever 210 is in the braking state, the wheels 120 on both sides of the brake shaft 220 are separated from the ground. When the brake lever 210 is in the unlocked state, the wheels 120 on both sides of the brake shaft 220 are in contact with the ground.

[0134] As shown in Figures 12 and 13, the brake assembly 200 further includes a lifting plate 23 and a driving plate 24. A brake lever 210 is rotatably disposed through the crossbeam assembly 101. The brake lever 210 is connected to the lifting plate 23 or the driving plate 24. The upper end of the lifting plate 23 is hinged to the crossbeam assembly 101, the upper end of the driving plate 24 is hinged to the lower end of the lifting plate 23, and the lower end of the driving plate 24 is hinged to the brake shaft 220 and can drive the brake shaft 220 to move. With the above structure, when a caregiver operates the brake lever 210, the brake lever 210 can rotate relative to the crossbeam assembly 101, and the brake lever 210 drives the lifting plate 23 to rotate relative to the crossbeam assembly 101, thereby causing the lifting plate 23 to rotate and move the driving plate 24 vertically, so that the driving plate 24 drives the brake shaft 220 to move.

[0135] In this embodiment, the brake lever 210 is connected to the lifting plate 23 for easy connection.

[0136] Among them, the lifting plate 23 can be limited with the driving plate 24 to limit the rotation of the driving plate 24 relative to the lifting plate 23 when the brake shaft 220 is in the braking state. With the above arrangement, the brake shaft 220 can be stably in the braking state, thereby making the nursing bed more stable.

[0137] As shown in Figures 10, 12, and 13, the lifting plate 23 and the driving plate 24 are both U-shaped plate structures. The upper end of the driving plate 24 penetrates the lifting plate 23, and the inner wall of the lifting plate 23 can be limitedly engaged with the outer wall of the driving plate 24. The above-mentioned limiting structure has the advantages of simple structure and easy installation.

[0138] In this embodiment, the lower surface of the brake shaft 220 is planar. When the brake shaft 220 is in the braking state, both the lifting plate 23 and the driving plate 24 are in a vertical position. However, when the lifting plate 23 and the driving plate 24 continue to rotate relative to each other, that is, when the lifting plate 23 rotates clockwise in Figure 5, the inner wall of the lifting plate 23 can engage with the outer wall of the driving plate 24 to prevent further rotation. As a result, the lifting plate 23 and the driving plate 24 remain in a vertical position, and the lower surface of the brake shaft 220 contacts the ground.

[0139] Among them, the lifting plate 23 can cooperate with the crossbeam assembly 101 to limit the lifting plate 23 relative to the crossbeam assembly 101 when the brake shaft 220 is in the unlocked state. With the above structure, the lifting plate 23 can be limited so that the lifting plate 23 does not rotate too much.

[0140] As shown in Figure 13, brake assembly 200 also includes an adjustment bolt 25, which extends vertically through crossbeam assembly 101 and abuts against the upper end of lift plate 23. This restraining engagement of adjustment bolt 25 with the upper end of lift plate 23 provides a simple structure and ease of installation. Furthermore, by adjusting the length of adjustment bolt 25, the position of lift plate 23 in the unlocked state can be adjusted.

[0141] Of course, a limiting protrusion with an unadjustable length may also be provided on the crossbeam assembly 101 to abut against the upper end of the lifting plate 23 .

[0142] As shown in Figures 12 and 13, the brake assembly 200 also includes a lifting shaft 26 and a reset member 27. The lifting shaft 26 is laterally inserted into the brake shaft 220. The lower end of the drive plate 24 is hingedly connected to the brake shaft 220 via the lifting shaft 26. The reset member 27 is sleeved on the brake shaft 220, and the two ends of the reset member 27 respectively abut against the lifting shaft 26 and the crossbeam assembly 101. When the drive plate 24 rotates, the lifting shaft 26 can be used to drive the brake shaft 220 to move vertically, thereby having the advantages of a simple structure and easy installation. The reset member 27 can not only maintain the brake shaft 220 in the unlocked state, but also utilize the elastic force of the reset member 27 to automatically reset the brake shaft from the braking state to the unlocked state.

[0143] In this embodiment, the reset member 27 is a reset spring.

[0144] As shown in Figures 9 to 11, the crossbeam assembly 101 includes a beam body 1011, a wheel seat 112, and a brake seat 113. The wheel seat 112 and the brake seat 113 are provided at both ends of the beam body 1011. The wheel seat 112 and the brake seat 113 are connected. The wheel 120 is provided on the wheel seat 112. The brake shaft 220 is vertically movably provided through the wheel seat 112 and the brake seat 113. The upper end of the lifting plate 23 is hinged to the brake seat 113. The crossbeam assembly 101 with the above structure has the advantage of being easy to install because the beam body 1011 can connect the two wheel seats 112, the wheel seats 112 can be used to arrange the wheels, and the brake assembly 200 can be used to arrange the brake seat 113.

[0145] In other embodiments, the wheel seat 112 may be utilized to dispose the brake assembly 200 .

[0146] As shown in Figures 10 and 13, the brake seat 113 includes a top plate 1131, a bottom plate 1132, and a vertical plate 1133. The top plate 1131 and the bottom plate 1132 both extend in the transverse direction. The top plate 1131 is located above the bottom plate 1132. The ends of the vertical plate 1133 are respectively connected to the top plate 1131 and the bottom plate 1132. The brake shaft 220 is vertically inserted through the top plate 1131 and the bottom plate 1132. The upper end of the lifting plate 23 is hinged to the top plate 1131. The vertical plate 1133 is connected to the wheel seat 112. The brake seat 113 adopting the above structure has the advantages of simple structure and easy installation.

[0147] In this embodiment, the adjusting bolt 25 is vertically penetrated through the top plate 1131 , and both ends of the reset member 27 are respectively connected to the lifting shaft 26 and the upper surface of the bottom plate 1132 .

[0148] A guide sleeve is further provided on the top plate 1131 and the bottom plate 1132 , and the brake shaft 220 is passed through the guide sleeve.

[0149] Specifically, the brake seat 113 further includes a hinge plate arranged in a vertical direction, the upper end of the hinge plate is connected to the top plate 1131, and the upper end of the lifting plate 23 is connected to the hinge plate.

[0150] As shown in FIG9 , the travel wheel 214 further includes a protective cover 300 , which is positioned above the ends of the brake assembly 200 and the crossbeam assembly 101 and is connected to the base 100 . The protective cover 300 is provided with an indicator light that can indicate the operating status of the brake shaft 220 . The protective cover 300 can protect the brake assembly 200 from damage. The indicator light can indicate the operating status of the brake shaft 220 for easy identification by the nursing staff.

[0151] In this embodiment, an avoidance groove is provided on the protective cover 300 , and the crossbeam assembly 101 passes through the avoidance groove and is connected to the lifting plate 23 .

[0152] Specifically, the brake lever 210 is provided with an operating handle 2101. By arranging the operating handle 2101, it is convenient for the nursing staff to operate, and the nursing bed can be braked and walked without bending over.

[0153] The following is an explanation of the specific working process of the travel wheel:

[0154] As shown in Figures 12 and 13, when braking is required, the caregiver operates the operating handle 2101, causing the brake lever 210 to rotate the lifting plate 23 clockwise relative to the top plate 1131. The lifting plate 23 then rotates the drive plate 24 counterclockwise. Simultaneously, as the distance between the top plate 1131 and the lifting shaft 26 increases, the lifting shaft 26 drives the brake shaft 220 to move vertically downward, causing the lower surface of the brake shaft 220 to contact the ground, thereby separating the wheel 120 from the ground. At this point, due to the limiting action of the lifting plate 23 and the drive plate 24, the lifting plate 23 cannot continue to rotate clockwise, thus maintaining the braking state. When walking is required, the caregiver operates the operating handle 2101 to make the brake lever 210 drive the lifting plate 23 to rotate counterclockwise relative to the top plate 1131, and the lifting plate 23 drives the driving plate 24 to rotate clockwise. At the same time, since the distance between the top plate 1131 and the lifting shaft 26 is reduced, the lifting shaft 26 drives the brake shaft 220 to move vertically upward, so that the lower surface of the brake shaft 220 is separated from the ground, thereby making the wheel 120 contact with the ground.

Claims

1. A nursing bed, characterized in that: The nursing bed comprises: A bed body, comprising a bed frame (10); The lifting assembly (20) comprises a first lifting frame (21) and a second lifting frame (22), wherein the first lifting frame (21) and the second lifting frame (22) are arranged below the bed frame (10) at intervals along the length direction of the bed frame (10), the first lifting frame (21) comprises a first lifting driving member (211), a first driving rod assembly (212) and a first lifting rod assembly (213), and the two ends of the first driving rod assembly (212) are respectively connected to the bed frame (10) and the first lifting rod assembly (213). ), the upper end of the first lifting rod assembly (213) is slidably arranged on the bed frame (10) along the length direction of the bed frame (10), the lower end of the first lifting rod assembly (213) is provided with a walking wheel (214), the upper end of the first lifting drive member (211) is hinged to the bed frame (10), and the lower end of the first lifting drive member (211) is drivingly connected to the middle part of the first driving rod assembly (212) so that the first driving rod assembly (212) rotates relative to the bed frame (10); When the first lifting frame (21) and the second lifting frame (22) are in the recovery limit position, the nursing bed is in the lowest position; when the first lifting frame (21) and the second lifting frame (22) are in the support limit position, the nursing bed is in the highest position; when the nursing bed is in the highest position, the height difference between the bed frame (10) and the ground is between 800 mm and 850 mm; when the nursing bed is in the lowest position, the height difference between the bed frame (10) and the ground is between 120 mm and 200 mm.

2. The nursing bed according to claim 1, characterized in that: A slider (215) is arranged at the upper end of the first lifting rod assembly (213); a slide rail (11) extending along the length direction of the bed frame (10) is arranged; and the slider (215) is slidably arranged in the slide rail (11).

3. The nursing bed according to claim 2, characterized in that: Limit pins (111) are provided at both ends of the slide rail (11), and the limit pins (111) can cooperate with the slider (215) in a limiting manner.

4. The nursing bed according to claim 1, characterized in that: The first driving rod assembly (212) comprises a first transmission rod (2121), a second transmission rod (2122) and a driving cross rod (2123); the first transmission rod (2121) and the second transmission rod (2122) are arranged at intervals along the width direction of the bed frame (10); the two ends of the driving cross rod (2123) are respectively connected to the first transmission rod (2121) and the second transmission rod (2122); the lower end of the first lifting driving member (211) is connected to the driving cross rod (2123); 123), the first lifting rod assembly (213) includes a first lifting rod (2131) and a second lifting rod (2132), the upper end of the first lifting rod (2131) and the upper end of the second lifting rod (2132) are both hinged to the bed frame (10), the lower end of the first transmission rod (2121) and the middle part of the first lifting rod (2131) are hinged, the lower end of the second transmission rod (2122) and the middle part of the second lifting rod (2132) are hinged, and the upper end of the first transmission rod (2121) and the upper end of the second transmission rod (2122) are both hinged to the bed frame (10).

5. The nursing bed according to claim 1, characterized in that: The first driving rod assembly (212) is hinged to the bed frame (10) at a first position, the first lifting rod assembly (213) is movably connected to the bed frame (10) at a second position, the first lifting driving member (211) is hinged to the bed frame (10) at a third position, and the second position is located between the first position and the third position.

6. The nursing bed according to claim 1, characterized in that: The second lifting frame (22) has the same structure as the first lifting frame (21). The second lifting frame (22) comprises a second lifting drive member (221), a second driving rod assembly (222) and a second lifting rod assembly (223). The two ends of the second driving rod assembly (222) are respectively hinged to the bed frame (10) and the middle part of the second lifting rod assembly (223). The upper end of the second lifting rod assembly (223) is slidably arranged on the bed frame (10) along the length direction of the bed frame (10). The lower end of the second lifting rod assembly (223) is provided with a walking wheel (214). The upper end of the second lifting drive member (221) is hinged to the bed frame (10). The lower end of the second lifting drive member (221) is drivingly connected to the middle part of the second driving rod assembly (222) so that the second driving rod assembly (222) rotates relative to the bed frame (10).

7. The nursing bed according to claim 1, characterized in that: The bed frame (10) comprises a frame (12), a weighing frame (13) and a weighing sensor (14); the frame (12) is arranged around the outer periphery of the weighing frame (13); the weighing sensor (14) is arranged between the frame (12) and the weighing frame (13); the weighing sensor (14) is connected to the frame (12) and the weighing frame (13) respectively; the upper end of the first lifting drive member (211) and the upper end of the first driving rod assembly (212) are both hinged to the weighing frame (13); the upper end of the first lifting rod assembly (213) can be slidably arranged on the weighing frame (13).

8. The nursing bed according to claim 7, characterized in that: The frame (12) and the weighing frame (13) are flush with each other; and / or, The weighing sensor (14) comprises a body and an adapter plate, the body is connected to the frame (12), and two ends of the adapter plate are respectively connected to the body and the weighing frame (13).

9. The nursing bed according to claim 6, characterized in that: The bed body also includes a back support plate (30), a hip support plate (31) and a leg support plate (32); the nursing bed also includes a back plate transmission assembly (33), a leg plate transmission assembly (34), a back plate driving member (35) and a leg plate driving member (36); the back support plate (30), the hip support plate (31) and the leg support plate (32) are arranged in sequence along the length direction of the bed frame (10); the first end of the back support plate (30) is freely arranged; the second end of the back support plate (30) is hinged to the bed frame (10) through the back plate transmission assembly (33); the hip support plate (31) is fixedly arranged on the bed frame (10); the first end of the leg support plate (32) is hinged to the bed frame (10) through the leg plate transmission assembly (34); ) is hinged to the bed frame (10), the second end of the leg support plate (32) is hinged to the bed frame (10), the back plate driving member (35) is located below the back support plate (30), and the two ends of the back plate driving member (35) are respectively hinged to the back support plate (30) and the bed frame (10), the leg plate driving member (36) is located below the leg support plate (32), and the two ends of the leg plate driving member (36) are respectively hinged to the bed frame (10) and the leg support plate (32), the back plate driving member (35) can drive the back support plate (30) to rotate relative to the bed frame (10), and the leg plate driving member (36) can drive the leg support plate (32) to rotate relative to the bed frame (10).

10. The nursing bed according to claim 9, characterized in that: The leg support plate (32) includes a thigh plate (321) and a calf plate (322), the first end of the thigh plate (321) is hinged to the bed frame (10) through the leg plate transmission assembly (34), the second end of the thigh plate (321) is hinged to the first end of the calf plate (322), the second end of the calf plate (322) is hinged to the bed frame (10), the two ends of the leg plate driving member (36) are respectively hinged to the bed frame (10) and the thigh plate (321), and the angle between the thigh plate (321) and the back support plate (30) is greater than 90°.

11. The nursing bed according to claim 10, characterized in that: The backboard transmission assembly (33) comprises a first transmission arm (331) and a second transmission arm (332), wherein the second transmission arm (332) is located between the first transmission arm (331) and the buttocks support plate (31), the two ends of the first transmission arm (331) are respectively hinged to the back support plate (30) and the bed frame (10), and the two ends of the second transmission arm (332) are respectively hinged to the back support plate (30) and the bed frame (10); The leg board transmission assembly (34) comprises a third transmission arm (341) and a fourth transmission arm (342), wherein the third transmission arm (341) is located between the fourth transmission arm (342) and the hip support board (31), and the two ends of the third transmission arm (341) are respectively hinged to the thigh board (321) and the bed frame (10), and the two ends of the fourth transmission arm (342) are respectively hinged to the thigh board (321) and the bed frame (10); The hip support plate (31) comprises a plate body (311) and a connecting plate (312); the plate body (311) and the bed frame (10) are fixedly connected; the connecting plate (312) is connected below the plate body (311) and extends along the length direction of the bed frame (10); the back plate driving member (35) and the leg plate driving member (36) are respectively hinged to the two ends of the connecting plate (312).

12. The nursing bed according to claim 11, characterized in that: The second transmission arm (332) comprises a first section (3321) and a second section (3322) which are connected and arranged at an angle. (3322), the first section (3321) is hinged to the second end of the back support plate (30), the second section (3322) is hinged to the bed frame (10), and the connection between the first section (3321) and the second section (3322) is far away from the first transmission arm (331); The third transmission arm (341) comprises a third section (3411) and a fourth section (3412) which are connected and arranged at an angle, the third section (3411) is hinged to the second end of the thigh board (321), the fourth section (3412) is hinged to the bed frame (10), and the connection between the third section (3411) and the fourth section (3412) is far away from the fourth transmission arm (342).

13. The nursing bed according to claim 9, characterized in that: The nursing bed further comprises a collection component and a control component (40), wherein the collection component is arranged on the bed frame (10) and is capable of collecting vital sign information, wherein the control component (40) comprises a control panel and a controller (41), wherein the controller (41) is respectively connected to the control panel, the first lifting drive component (211), the second lifting drive component (221), the backboard drive component (35), the leg board drive component (36) and the collection component by signals, wherein the bed frame (10) has a plurality of body positions, and the control panel has a vital sign monitoring key (50). , a call key (60) and a plurality of body position adjustment keys (70); the controller (41) is signal-connected with the vital sign monitoring key (50), the call key (60) and the plurality of body position adjustment keys (70); the controller (41) controls the working state of the acquisition component according to the trigger state of the vital sign monitoring key (50); the controller (41) sends a call signal according to the trigger state of the call key (60); and the controller (41) controls the bed frame (10) to switch between a plurality of body positions according to the trigger state of the plurality of body position adjustment keys (70).

14. The nursing bed according to claim 13, characterized in that: The call key (60) includes a conventional call key (61), the control component (40) further includes a first screen arranged at the nurse station, and the controller (41) includes a panel controller (411), and the panel controller (411) sends a display signal to the first screen according to the triggering state of the conventional call key (61).

15. The nursing bed according to claim 14, characterized in that: The call button (60) further includes an emergency call button (62), and the nursing bed further includes an alarm component (15) arranged on the bed body. The panel controller (411) is connected to the alarm component (15) by signal, and the panel controller (411) sends an alarm signal to the alarm component (15) according to the triggering state of the emergency call button (62).

16. The nursing bed according to claim 15, characterized in that: The collecting member comprises a weighing sensor (14); the bed frame (10) comprises a frame (12) and a weighing frame (13); the frame (12) is arranged around the outer periphery of the weighing frame (13); the weighing sensor (14) is arranged between the frame (12) and the weighing frame (13); the weighing sensor (14) is connected to the frame (12) and the weighing frame (13) respectively; the upper end of the first lifting drive member (211), the upper end of the first driving rod assembly (212), the upper end of the second lifting drive member (221) and the upper end of the second driving rod assembly (222) are all hinged to the weighing frame (13); the upper end of the first lifting rod assembly (213) and the upper end of the second lifting rod assembly (223) are both slidably arranged on the weighing frame (13); The vital sign monitoring key (50) further comprises a weighing key (51), the controller (41) comprises a weighing controller (412), the weighing controller (412) is connected to the panel controller (411) by signal, the weighing controller (412) controls the working state of the weighing sensor (14) according to the triggering state of the weighing key (51), and / or, The weighing controller (412) can control the working state of the alarm component (15) according to the detection data of the weighing sensor (14); and / or, The alarm component (15) includes a display light and / or a buzzer, the weighing controller (412) and the panel controller (411) are respectively connected to the display light signal, and the weighing controller (412) and the panel controller (411) are respectively connected to the buzzer signal.

17. The nursing bed according to claim 14, characterized in that: The collecting component comprises a vital sign sensor arranged on the bed frame (10) and capable of collecting heart rate, the vital sign monitoring key (50) comprises a heart rate monitoring key (52), and the panel controller (411) can control the working state of the vital sign sensor according to the triggering state of the heart rate monitoring key (52).

18. The nursing bed according to claim 13, characterized in that: The controller (41) further comprises a drive controller (413), wherein the drive controller (413) is electrically connected to the first lifting drive member (211) and the second lifting drive member (221) respectively, wherein the body position comprises the highest position and the lowest position, and the body position adjustment key (70) comprises a bed raising key (71) and a bed lowering key (72). The drive controller (413) controls the working state of the first lifting drive member (211) and the second lifting drive member (221) according to the triggering state of the bed raising key (71) and the triggering state of the bed lowering key (72), so as to move the bed frame (10) between the highest position and the lowest position.

19. The nursing bed according to claim 18, characterized in that: The body position also includes a rescue position in which the foot of the bed frame (10) is higher than the head of the bed of the bed frame (10) and a standing position in which the head of the bed is higher than the foot of the bed. The body position adjustment key (70) includes a head of bed raising key (73) and a foot of bed raising key (74). The drive controller (413) controls the working state of the first lifting drive member (211) and the working state of the second lifting drive member (221) according to the triggering state of the head of bed raising key (73) and the triggering state of the foot of bed raising key (74), so as to move the bed frame (10) between the rescue position and the standing position. When the bed frame (10) is in the standing position, the distance between the foot of the bed and the ground is greater than or equal to 20 cm. When the bed frame (10) is in the rescue position, the distance between the head of the bed and the ground is greater than or equal to 20 cm.

20. The nursing bed according to claim 13, characterized in that: The controller (41) further comprises a drive controller (413), wherein the drive controller (413) is connected to the The backboard driving member (35) is electrically connected to the backboard driving member (35), the body position adjustment key (70) includes a back raising key (75) and a back lowering key (76), the body position includes a back supporting position and a back flat position, and the driving controller (413) controls the working state of the backboard driving member (35) according to the triggering state of the back raising key (75) and the triggering state of the back lowering key (76), so as to move the bed frame (10) between the back supporting position and the back flat position; The drive controller (413) is electrically connected to the leg board drive component (36), the body position adjustment key (70) includes a leg raising key (77) and a leg lowering key (78), the body position includes a leg supporting position and a leg laying position, and the drive controller (413) controls the working state of the leg board drive component (36) according to the triggering state of the leg raising key (77) and the triggering state of the leg lowering key (78) to move the bed frame (10) between the leg supporting position and the leg laying position.

21. The nursing bed according to claim 20, characterized in that: The body position adjustment key (70) also includes a sitting position key (79) and a lying position key (80), and the body positions include a sitting position in which the legs and back are raised at the same time and a lying position in which the legs and back are laid flat at the same time. The drive controller (413) controls the working state of the leg board drive component (36) and the working state of the back board drive component (35) according to the trigger state of the sitting key (79) and the trigger state of the lying position key (80), so as to move the bed frame (10) between the sitting position and the lying position.

22. The nursing bed according to claim 21, characterized in that: The body position also includes a rescue position in which the foot of the bed frame (10) is higher than the head of the bed frame (10), the body position adjustment key (70) also includes a one-key rescue (81), and the drive controller (413) controls the working state of the first lifting drive member (211), the working state of the second lifting drive member (221), the working state of the leg board drive member (36) and the working state of the back board drive member (35) according to the triggering state of the one-key rescue (81), so as to move the bed frame (10) to the rescue position; and / or, The body position adjustment key (70) also includes a one-button lie-flat key (82), and the drive controller (413) controls the working state of the first lifting drive member (211), the working state of the second lifting drive member (221), the working state of the leg board drive member (36) and the working state of the back board drive member (35) according to the trigger state of the one-button lie-flat key (82), so as to move the bed frame (10) to the lowest position.

23. The nursing bed according to claim 13, characterized in that: The control component (40) further comprises a second screen (90), wherein the second screen (90) is arranged on the control panel, and the second screen (90) is connected to the controller (41) by signal.

24. The nursing bed according to claim 1, characterized in that: The walking wheel (214) comprises: A base (100) comprises a crossbeam assembly (101) and wheels (120) arranged at two ends of the crossbeam assembly (101); A brake assembly (200) comprises a brake lever (210) and brake shafts (220) arranged at both ends of the brake lever (210), wherein the brake lever (210) is spaced apart from the crossbeam assembly (101), and the wheel (120) is located on one side of the corresponding brake shaft (220), and the two ends of the brake lever (210) are respectively drivingly connected to the corresponding brake shaft (220) so that the brake shaft (220) can be movably arranged in the vertical direction through the crossbeam assembly (101), and the brake shaft (220) has a braking state in which the wheel (120) is in contact with the ground and is separated from the ground, and an unlocking state in which the wheel (120) is away from the ground and is in contact with the ground, and the brake lever (210) can drive the brake shaft (220) to switch between the braking state and the unlocking state.

25. The nursing bed according to claim 24, characterized in that: The brake assembly (200) further includes a lifting plate (23) and a driving plate (24); the brake rod (210) is rotatably inserted into the cross beam assembly (101); the brake rod (210) is connected to the lifting plate (23) or the driving plate (24); the upper end of the lifting plate (23) is hinged to the cross beam assembly (101); the upper end of the driving plate (24) is hinged to the lower end of the lifting plate (23); the lower end of the driving plate (24) is hinged to the brake shaft (220) and can drive the brake shaft (220) to move.

26. The nursing bed according to claim 25, characterized in that: The lifting plate (23) can be limitedly matched with the driving plate (24) to limit the rotation of the driving plate (24) relative to the lifting plate (23) when the brake shaft (220) is in the braking state.

27. The nursing bed according to claim 26, characterized in that: The lifting plate (23) and the driving plate (24) are both U-shaped plate structures; the upper end of the driving plate (24) penetrates into the lifting plate (23); and the inner wall of the lifting plate (23) can be limitedly matched with the outer wall of the driving plate (24).

28. The nursing bed according to claim 25, characterized in that: The lifting plate (23) can be limitedly matched with the crossbeam assembly (101) to limit the rotation of the lifting plate (23) relative to the crossbeam assembly (101) when the brake shaft (220) is in the unlocked state.

29. The nursing bed according to claim 28, characterized in that: The brake assembly (200) further comprises an adjusting bolt (25), wherein the adjusting bolt (25) is vertically penetrated through the crossbeam assembly (101), and the adjusting bolt (25) can abut against the upper end of the lifting plate (23).

30. The nursing bed according to claim 25, characterized in that: The brake assembly (200) further comprises a lifting shaft (26) and a reset member (27), wherein the lifting shaft (26) is transversely penetrated through the brake shaft (220), the lower end of the drive plate (24) is hinged to the brake shaft (220) via the lifting shaft (26), the reset member (27) is sleeved on the brake shaft (220), and the two ends of the reset member (27) are respectively in contact with the lifting shaft (26) and the crossbeam assembly (101).

31. The nursing bed according to claim 25, characterized in that: The crossbeam assembly (101) comprises a beam body (1011), a wheel seat (112) and a brake seat (113), the wheel seat (112) and the brake seat (113) are provided at both ends of the beam body (1011), the wheel seat (112) and the brake seat (113) are connected, the wheel (120) is provided on the wheel seat (112), the brake shaft (220) is vertically movably penetrated through the wheel seat (112) and the brake seat (113), and the upper end of the lifting plate (23) is hinged to the brake seat (113).

32. The nursing bed according to claim 31, characterized in that: The brake seat (113) includes a top plate (1131), a bottom plate (1132) and a vertical plate (1133), wherein the top plate (1131) and the bottom plate (1132) both extend in the transverse direction, the top plate (1131) is located above the bottom plate (1132), the two ends of the vertical plate (1133) are respectively connected to the top plate (1131) and the bottom plate (1132), the brake shaft (220) is vertically penetrated through the top plate (1131) and the bottom plate (1132), the upper end of the lifting plate (23) is hinged to the top plate (1131), and the vertical plate (1133) is connected to the wheel seat (112).

33. The nursing bed according to claim 24, characterized in that: The walking wheel (214) further comprises a protective cover (300), the protective cover (300) being arranged above the ends of the brake assembly (200) and the crossbeam assembly (101) and connected to the base (100), and an indicator light being arranged on the protective cover (300), and the indicator light being capable of indicating the working state of the brake shaft (220); and / or, The brake lever (210) is provided with an operating handle (2101).

Images