Multi-position adjustment assembly and vehicle

Abstract

This invention relates to the technical field of medical devices, and discloses a multi-position adjustment unit and a carrier. The multi-position adjustment unit includes a base and a folding frame assembly. A first drive component is provided on the base to drive the folding frame assembly to rise and fall. The folding frame assembly includes a lower bed frame and an upper bed frame rotatably connected. The upper bed frame is provided with a multi-segment bed board mechanism, which includes a backrest board, a first soft connecting plate, a buttocks board, a leg board, a second soft connecting plate, and a footboard arranged sequentially along the length of the upper bed frame. A second drive component and a third drive component are provided at the bottom of the upper bed frame. The second drive component drives the first soft connecting plate to raise or lower the backrest board; the third drive component drives the second soft connecting plate to form an arch or lay flat on the leg board, the second soft connecting plate, and the footboard. This multi-position adjustment unit, applied to a hospital bed, can realize multiple functions such as backrest lifting, leg bending, and overall standing.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a multi-position control unit and a carrier. Background Technology

[0002] In the field of medical device technology, the development of nursing beds is of great significance for improving patients' nursing experience and quality of life. As people's demands for medical care continue to increase, the functions of nursing beds are constantly expanding and improving. Nursing beds not only need to meet patients' basic lying needs but also need to have multiple posture adjustment functions to adapt to different nursing scenarios and patients' physical conditions. The realization of these functions not only helps improve patient comfort and facilitates nursing procedures for medical staff but also promotes patient recovery to a certain extent.

[0003] To address the issue of posture adjustment in nursing beds, various conventional methods exist. However, ordinary nursing beds can only adjust the backrest or legrests individually, failing to achieve the complex action of a smooth standing up. This not only results in poor comfort but also poses a risk of falling. Some nursing beds use purely mechanical linkage mechanisms that may jam, while purely electric push rod mechanisms cannot be manually operated during power outages and require multiple motors to work non-coordinatedly to simulate a standing posture, leading to complex control logic. Existing nursing beds generally suffer from technical problems such as limited functionality and poor safety.

[0004] Therefore, the need for a multi-functional, stable, safe, and naturally adaptable adjustment unit for nursing beds, capable of transitioning between various postures such as lying down, sitting, and standing, is an urgent problem to be solved in the field of medical devices. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a multi-position regulating unit and a carrier.

[0006] A multi-position adjustable unit includes a base and a folding frame assembly disposed on the base. The base is provided with a first driving member for driving the folding frame assembly to rise and fall. The folding frame assembly includes a lower bed frame and an upper bed frame. One end of the upper bed frame is rotatably connected to the lower bed frame. The upper bed frame is provided with a multi-segment bed board mechanism. The multi-segment bed board mechanism includes a back bed board, a first soft connecting board, a buttock bed board, a leg bed board, a second soft connecting board, and a foot bed board arranged sequentially along the length direction of the upper bed frame. The bottom of the upper bed frame is provided with a second driving member and a third driving member. The second driving member is used to drive the first soft connecting plate to push upward or release downward, so that the back bed board is raised or laid flat. The third driving member drives the second soft connecting plate to push upward or release downward, so that the leg bed board, the second soft connecting plate and the foot bed board form an arch or lay flat.

[0007] By adopting the above technical solution, the multi-position adjustment unit of this application can achieve flexible adjustment of bed height, back and leg posture, making the bed board move more smoothly and the transition more natural during the transformation process, effectively reducing the impact and discomfort on the patient's body, and supporting smooth transitions from lying down, sitting up to standing up and other postures. Specifically, the first driving component can drive the folding frame assembly to lift and lower, thereby adjusting the bed height to meet the operational needs of different usage scenarios and medical staff. At the same time, the multi-segment bed board mechanism, in conjunction with the soft connecting plate, reduces the risk of patients falling during posture adjustment.

[0008] The second drive unit controls the raising or lowering of the backrest board via the first flexible connecting plate, allowing patients to easily switch between lying and semi-reclining positions. The third drive unit drives the second flexible connecting plate, causing the leg board, the second flexible connecting plate, and the footboard to form an arched or flat position, which helps relieve leg pressure and promote blood circulation, especially suitable for patients who are bedridden for extended periods. Furthermore, the upper and lower bed frames are rotatably connected at one end, further enabling smooth transitions between different postures and facilitating inspection and maintenance, ensuring the multi-position adjustment unit is always in good working order.

[0009] Furthermore, the second driving component includes a back motor, the tail of which is fixed to the first support hole of the upper bed frame, and the front end of the first push rod of the back motor is connected to a first arc-shaped rocker arm, which is arranged along the width direction of the first flexible connecting plate and fixed to the bottom of the first flexible connecting plate.

[0010] By adopting the above technical solution, the backrest motor pushes the first arc-shaped rocker arm through the first push rod, which in turn drives the first flexible connecting plate to move, precisely controlling the first flexible connecting plate to push upward or release downward, so that the backrest bed board can be raised or lowered smoothly. This structural design makes the adjustment of the backrest bed board more precise and stable, avoiding jamming and impact during the adjustment process, improving the comfort and safety of patients during use, and better meeting the different posture needs of patients.

[0011] Furthermore, the third driving component includes a leg motor, the tail of which is fixed to the second ear hole of the upper bed frame, and the front end of the second push rod of the leg motor is connected to a second arc-shaped rocker arm, which is arranged along the width direction of the second flexible connecting plate and fixed to the bottom of the second flexible connecting plate.

[0012] By adopting the above technical solution, the leg motor pushes the second arc-shaped rocker arm via the second push rod, which in turn drives the second flexible connecting plate to move. This precisely controls the upward or downward release of the second flexible connecting plate, allowing the leg bed board, the second flexible connecting plate, and the foot bed board to stably form an arch or lie flat. This design ensures the flexibility and reliability of leg posture adjustment, providing patients with more comfortable leg support and posture changes, avoiding jamming and impact during the adjustment process, and improving patient comfort and safety.

[0013] Furthermore, through precise control of the leg motor and back motor, the bending degree and angle of the first and second soft connecting plates can be adjusted according to the patient's specific needs and physical condition, better adapting to the rehabilitation and care requirements of different patients.

[0014] Furthermore, the first driving component includes a first column motor, a second column motor, and a third column motor. The tail ends of the first column motor and the second column motor are fixed to the front end of the base and are parallel to each other. The tail end of the third column motor is fixed to the rear end of the base. The front ends of the push rods of the first column motor, the second column motor, and the third column motor are respectively fixedly connected to the lower bed frame through universal joint assemblies.

[0015] By adopting the above technical solution, the first, second, and third column motors work together to achieve stable lifting and lowering of the folding frame assembly. When all three motors operate simultaneously, they drive the lower bed frame to rise or fall smoothly, thereby adjusting the height of the entire multi-position adjustment unit. Compared to single-motor drive, this multi-motor collaborative drive method provides stronger driving force and better maintains the balance and stability of the bed during lifting and lowering.

[0016] Furthermore, the universal joint assembly makes the connection between the motor push rods and the lower frame more flexible. When the three motors are controlled independently and the push rod extension lengths are inconsistent, the universal joint assembly can adapt to different directions of movement and angle changes, allowing the lower frame to tilt or deflect in different directions according to actual needs, thereby realizing multi-directional attitude adjustment of the folding frame assembly, such as tilting forward and backward or tilting left and right.

[0017] Furthermore, the universal joint assembly includes a universal rotation mechanism, a first connecting member, and a second connecting member. The first connecting member is fixedly connected to the push rods of the first column motor, the second column motor, and the third column motor, respectively. The second connecting member is fixedly connected to the lower bed frame. The universal rotation mechanism includes a first rotating shaft and a second rotating shaft arranged perpendicularly to each other. The two ends of the first rotating shaft are rotatably connected to the first connecting member, and the two ends of the second rotating shaft are rotatably connected to the second connecting member.

[0018] By adopting the above technical solution, the first and second rotating axes, which are perpendicular to each other in the universal joint assembly, provide bidirectional rotational freedom for the column motor and the lower bed frame. When the three motors are controlled independently and the push rod heights are different, this structure can automatically adapt to the angle changes of the lower bed frame, avoid rigid jamming, and ensure smooth multi-directional adjustments such as forward and backward tilting or left and right tilting.

[0019] Furthermore, the axial direction of the first rotating shaft of the universal joint assembly on the push rod of the first column motor and the second column motor is consistent, and the axial direction of the first rotating shaft of the universal joint assembly on the push rod of the third column motor is perpendicular to the axial direction of the first rotating shaft of the second column motor.

[0020] By adopting the above technical solution, the universal joint assemblies of the first and second column motors are aligned, ensuring synchronized lifting and lowering. The universal joint assembly of the third column motor is perpendicular to it, giving the unit independent multi-directional adjustment capabilities. When the first and second column motors are at the same height but different from the third column motor, the folding frame assembly tilts forward and backward. When the heights of the first, second, and third column motors increase or decrease sequentially, the folding frame assembly tilts left and right. This layout optimizes the movement trajectory of the three motors, enabling the unit to achieve combined attitude adjustments of forward / backward tilting and left / right tilting, significantly improving the flexibility and stability during multi-directional adjustment.

[0021] Furthermore, the folding frame assembly includes a standing drive motor for driving the upper bed frame to rotate relative to the lower bed frame from a horizontal state to an upright state, the tail of the standing drive motor being fixed to the lower bed frame, and the push rod of the standing drive motor being fixed to the upper bed frame.

[0022] By adopting the above technical solution, when the standing drive motor is working, its push rod extends and retracts, causing the upper bed frame to rotate around the rotational connection point with the lower bed frame. This allows the upper bed frame to smoothly transition from a horizontal lying position to an upright position, realizing a natural transition of the nursing bed from lying down to sitting up and then to standing up. This posture change method driven by the standing drive motor has a smoother rotation process, is more stable and safer than traditional adjustment methods, and can better meet the different needs of patients. It also facilitates the inspection and maintenance of multi-position adjustment units.

[0023] Furthermore, the folding frame assembly also includes an auxiliary support assembly, which includes a first gas spring. The two ends of the first gas spring are respectively connected to the lower bed frame and the upper bed frame, and the first gas spring is arranged parallel to the lifting drive motor.

[0024] By adopting the above technical solution, the first gas spring is arranged parallel to the lifting drive motor. During the lifting process, the first gas spring provides auxiliary support for the rotation of the upper frame, sharing the load of the lifting drive motor and enabling the upper frame to stand stably. During the descent process, the first gas spring acts as a buffer, preventing the upper frame from suddenly falling and improving safety. At the same time, after the upper frame is in position, the first gas spring helps maintain stability and can serve as a passive safety device in emergency situations such as power outages, improving the safety of the multi-position regulating unit.

[0025] Furthermore, the auxiliary support assembly also includes at least one set of linkage mechanisms, which include a first link, a second link, a second gas spring, and an auxiliary wheel frame. The first link is rotatably connected to the upper bed frame, and the second link is rotatably connected to the lower bed frame, with the first link and the second link being rotatably connected. The auxiliary wheel frame is located at the rear end of the upper bed frame. One end of the second gas spring is connected to the connection between the first link and the second link, and the other end is connected to the auxiliary wheel frame.

[0026] By adopting the above technical solution, the linkage mechanism uses the rotation of the upper bed frame itself as the power source, without the need for additional drive. The structure is simple and reliable. During the process of the upper bed frame being erected, the first link and the second link rotate relative to each other and drive the second gas spring to extend, thereby pushing the auxiliary wheel frame to unfold to contact the ground. After the auxiliary wheel frame touches the ground, it provides stable support for the rear of the unit, effectively preventing the risk of tipping over due to the rearward shift of the center of gravity during erection. At the same time, the second gas spring plays a buffering role during the unfolding process, so that the auxiliary wheel frame lands smoothly and maintains the unfolded state after it is in place, effectively improving the safety and stability in the erected state.

[0027] Furthermore, the auxiliary wheel frame includes a wheel frame body and rollers disposed on the wheel frame body.

[0028] By adopting the above technical solution, rollers are installed at the bottom of the auxiliary wheel frame, allowing it to roll slightly with the unit after it unfolds and contacts the ground, avoiding sliding friction or jamming with the ground and ensuring smooth erection. At the same time, the roller structure reduces the impact force when the auxiliary wheel frame touches the ground, further improving the stability and safety of the multi-position regulating unit.

[0029] Furthermore, the angle range of the rotation of the upper bed frame driven by the lifting drive motor is 0-85°.

[0030] By adopting the above technical solution, the standing drive motor drives the bed frame to rotate within the range of 0° to 85°, fully covering the needs of posture changes from lying down to sitting up and then standing up. The maximum standing angle of 85° allows patients to reach a near-standing posture, which is convenient for transfer or rehabilitation training, while avoiding the risk of forward tilting caused by standing upright, thus achieving a balance between functionality and safety.

[0031] Furthermore, the multi-position regulating unit also includes a control box, which is electrically connected to the first drive component, the second drive component, the third drive component, and the lifting drive motor, respectively.

[0032] By adopting the above technical solution, the control box is electrically connected to each drive component, realizing centralized control of the first drive component, the second drive component, the third drive component and the standing drive motor. Users can operate the hand control panel with one button to realize independent or coordinated actions of bed lifting, back and leg posture adjustment and standing function, simplifying the operation process.

[0033] The present invention also provides a carrier, including a multi-position adjustment unit as described above, and a walking mechanism disposed at the bottom of the multi-position adjustment unit, wherein protective railings are provided on the four sides of the upper frame of the multi-position adjustment unit.

[0034] By adopting the above technical solution, the carrier integrates the multi-position adjustment unit and the walking mechanism into one unit, enabling the originally fixed nursing bed to move. Medical staff can easily push the carrier to transfer patients between different areas, improving the convenience and practicality of the equipment. In addition, the safety railing provides reliable safety for patients. When patients use the multi-position adjustment unit to change positions, the safety railing can effectively prevent patients from slipping off the bed and avoid accidents.

[0035] In summary, this application includes at least the following beneficial technical effects: (1) The multi-position adjustment unit of this application is applied to the vehicle. Through the coordinated control of the standing drive motor and the first drive component, the second drive component and the third drive component, the multi-position adjustment unit can realize the back lifting, leg adjustment, overall lifting, forward and backward tilting, and other actions. This makes the process of the patient from lying down to sitting up and then standing up natural and smooth, simulating the muscle and joint coordination trajectory of a healthy human body from lying down to standing up, and greatly improving the patient's comfort.

[0036] (2) The second driving component of this application drives the first soft connecting plate to deform through the first arc-shaped rocker, and the third driving component drives the second soft connecting plate to deform through the second arc-shaped rocker, so that the back bed board is raised and the leg bed board forms an arch. This structure provides continuous close support for the patient's back, buttocks and legs, and the buttocks position remains stable relative to the bed board, fundamentally eliminating the risk of slipping and achieving passive safety protection.

[0037] (3) This application innovatively integrates the lifting drive motor and the gas spring. The gas spring not only serves as a balancing element to reduce the motor load, but also acts as an independent passive safety device in the event of power failure or motor failure, so that the bed can slowly descend to a safe position, thereby improving the safety of the unit.

[0038] (4) This application adopts a transmission method of back motor, leg motor and standing drive motor in conjunction with arc rocker or linkage mechanism to efficiently convert the linear motion of the motor into rotational motion. The force flow transmission path is clear and the structure is rigid. It can withstand the dynamic load during the standing process more stably and extend the service life of the equipment. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a vehicle in a flat position according to Embodiment 2 of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the upper frame of the multi-position regulating unit provided in Embodiment 1 of the present invention; Figure 3 yes Figure 2 Enlarged schematic diagram of structure A; Figure 4 This is a schematic diagram of the structure of a vehicle in an upright state according to Embodiment 2 of the present invention; Figure 5 This is a schematic diagram of the universal joint assembly of the multi-position regulating unit provided in Embodiment 1 of the present invention; Figure 6 yes Figure 4 An enlarged schematic diagram of the B structure.

[0040] Explanation of reference numerals in the attached figures: 1. Base; 11. Walking mechanism; 2. Folding frame assembly; 21. Upper bed frame; 22. Lower bed frame; 211. Guardrail; 3. First driving component; 31. First column motor; 32. Second column motor; 33. Third column motor; 4. Multi-segment bed board mechanism; 41. Backrest board; 42. First soft connecting board; 43. Hip board; 44. Leg board; 45. Second soft connecting board; 46. Footboard; 5. Second drive component; 51. Back motor; 52. First push rod; 53. First arc-shaped rocker arm; 6. Third drive component; 61. Leg motor; 62. Second push rod; 63. Second arc-shaped rocker arm; 7. Universal joint assembly; 71. Universal rotation mechanism; 711. First rotating shaft; 712. Second rotating shaft; 72. First connecting member; 73. Second connecting member; 8. Lifting drive motor; 9. Auxiliary support assembly; 91. First gas spring; 92. Linkage mechanism; 921. First link; 922. Second link; 923. Second gas spring; 924. Auxiliary wheel frame; 9241. Wheel frame body; 9242. Roller. Detailed Implementation

[0041] The following combination Figures 1-6 The technical solutions in the embodiments of the present invention will be described in detail.

[0042] Example 1 See Figure 1 Example 1 provides a multi-position adjustable unit, including a base 1 and a folding frame assembly 2 disposed on the base 1. The base 1 is provided with a first driving member 3 for driving the folding frame assembly 2 to rise and fall. The folding frame assembly 2 includes an upper bed frame 21 and a lower bed frame 22. One end of the upper bed frame 21 and the lower bed frame 22 are rotatably connected. The upper bed frame 21 is provided with a multi-segment bed board mechanism 4. The multi-segment bed board mechanism 4 includes a back bed board 41, a first soft connecting plate 42, a buttock bed board 43, a leg bed board 44, a second soft connecting plate 45, and a foot bed board 46 arranged sequentially along the length direction of the upper bed frame 21.

[0043] The upper bed frame 21 is provided with a second driving member 5 and a third driving member 6 at its bottom. The second driving member 5 is used to drive the first soft connecting plate 42 to push upward or release downward. Since the back bed board 41 is fixedly connected to the first soft connecting plate 42, the back bed board 41 can be raised or laid flat. The third driving member 6 drives the second soft connecting plate 45 to push upward or release downward. Since the ends of the leg bed board 44 and the foot bed board 46 away from the second soft connecting plate 45 are respectively rotatably connected to the upper bed frame 21, the leg bed board 44, the second soft connecting plate 45 and the foot bed board 46 form an arch or lay flat.

[0044] Specifically, the second driving component 5 includes a back motor 51. The tail of the back motor 51 is fixed to the first ear hole of the upper bed frame 21. The front end of the first push rod 52 of the back motor 51 is connected to a first arc-shaped rocker arm 53. A back crossbar is fixed along the length direction at the bottom of the first flexible connecting plate 42. The first arc-shaped rocker arm 53 is arranged along the width direction of the first flexible connecting plate 42 and fixed to the back crossbar at the bottom of the first flexible connecting plate 42. The back motor 51 drives the first push rod 52 to extend or retract, and drives the first arc-shaped rocker arm 53 to push the back crossbar upward or release the first flexible connecting plate 42 downward, thereby driving the back bed board 41 to be raised or lowered relative to the buttock bed board 43.

[0045] Similarly, the third drive unit 6 includes a leg motor 61. The tail of the leg motor 61 is fixed to the second support hole of the upper bed frame 21. The front end of the second push rod 62 of the leg motor 61 is connected to a second arc-shaped rocker arm 63. A leg crossbar is fixed along the length direction at the bottom of the second flexible connecting plate 45. The second arc-shaped rocker arm 63 is arranged along the width direction of the second flexible connecting plate 45 and fixed to the leg crossbar at the bottom of the second flexible connecting plate 45. The leg motor 61 drives the second push rod 62 to extend or retract, and drives the second arc-shaped rocker arm 63 to push the leg crossbar upward or release the second flexible connecting plate downward, thereby driving the leg bed board 44, the second flexible connecting plate 45 and the foot bed board 46 to form an arched or flat state.

[0046] In order to enable the regulating unit to achieve multi-directional adjustment, the first driving component 3 includes a first column motor 31, a second column motor 32 and a third column motor 33. The tails of the first column motor 31 and the second column motor 32 are fixed to the front end of the base 1 and are parallel to each other. The tail of the third column motor 33 is fixed to the rear end of the base 1. The front ends of the push rods of the first column motor 31, the second column motor 32 and the third column motor 33 are respectively fixedly connected to the lower bed frame 22 through the universal joint assembly 7.

[0047] Specifically, the universal joint assembly 7 includes a universal rotation mechanism 71, a first connecting member 72, and a second connecting member 73. The universal rotation mechanism 71 includes a first rotating shaft 711 and a second rotating shaft 712 arranged perpendicularly to each other. The first connecting member 72 is fixedly connected to the push rods of the first column motor 31, the second column motor 32, and the third column motor 33, respectively. The second connecting member 73 is fixedly connected to the lower bed frame 22. The first connecting member 72 is a connecting member with shaft holes at both ends. The second connecting member 73 includes two connecting members with shaft holes arranged on both sides of the universal rotation mechanism 71. The two ends of the first rotating shaft 711 of the universal rotation mechanism 71 are rotatably connected to the shaft holes of the first connecting member 72, and the two ends of the second rotating shaft 712 are rotatably connected to the shaft holes of the second connecting member 73.

[0048] To achieve forward / backward and left / right tilting of the adjustment unit, the first rotating shaft 711 of the universal joint assembly 7 on the push rods of the first column motor 31 and the second column motor 32 are aligned, while the first rotating shaft 711 of the universal joint assembly 7 on the push rod of the third column motor 33 is perpendicular to the first rotating shaft 711 of the second column motor 32. In this configuration, when the first column motor 31 and the second column motor 32 are at the same height but different from the third column motor 33, the folding frame assembly 2 tilts forward / backward; when the heights of the first column motor 31, the second column motor 32, and the third column motor 33 increase or decrease sequentially, the folding frame assembly 2 tilts left / right.

[0049] As an optional implementation, the number of column motors of the first drive unit 3 is not limited to three. However, the preferred implementation of this application saves costs, not only realizing multi-directional adjustment of the regulating unit, but also ensuring the overall stability of the regulating unit.

[0050] In order to realize the lifting function of the adjustment unit, the folding frame assembly 2 also includes a lifting drive motor 8. The tail of the lifting drive motor 8 is fixed on the lower bed frame 22, and the push rod of the lifting drive motor 8 is fixed on the upper bed frame. When the lifting drive motor 8 is started, the upper bed frame 21 rotates from the horizontal state to the standing state relative to the lower bed frame 22.

[0051] To improve the safety and stability of the regulating unit when it is raised or lowered, the folding frame assembly 2 also includes an auxiliary support assembly 9. The auxiliary support assembly 9 includes a first gas spring 91, the two ends of which are connected to the lower frame 22 and the upper frame 21, respectively. The first gas spring 91 is arranged parallel to the push rod of the raising drive motor 8. During the raising process, the first gas spring 91 provides auxiliary support force for the rotation of the upper frame. During the lowering process, the first gas spring 91 plays a buffering role to prevent the upper frame 21 from falling suddenly and improve safety.

[0052] Furthermore, the auxiliary support assembly 9 also includes at least one set of linkage mechanism 92. The linkage mechanism includes a first link 921, a second link 922, a second gas spring 923, and an auxiliary wheel frame 924. The first link 921 is rotatably connected to the upper bed frame 21, and the second link 922 is rotatably connected to the lower bed frame 22. The first link 921 and the second link 922 are rotatably connected. One end of the second gas spring 923 is connected to the connection between the first link 921 and the second link 922, and the other end is connected to the auxiliary wheel frame 924. The auxiliary wheel frame 924 is located at the rear end of the upper bed frame 21 and includes a wheel frame body 9241 and rollers 9242 disposed on the wheel frame body 9241. When the upper bed frame 21 is in a completely stable upright state, the rollers 9242 on the auxiliary wheel frame 924 are in contact with the horizontal ground.

[0053] In this embodiment, two sets of linkage mechanisms 92 are provided, and the two sets of linkage mechanisms 92 are symmetrically arranged at the bottom rear end of the upper bed frame 21.

[0054] Preferably, the angle range of the upright drive motor driving the bed frame to rotate is 0-85°. The maximum upright angle of 85° allows the patient to reach a near-standing posture, which is convenient for transfer or rehabilitation training, while avoiding the risk of forward tilting caused by being completely upright, thus achieving a balance between functionality and safety.

[0055] In order to realize intelligent control of the multi-position regulating unit, the multi-position regulating unit also includes a control box, which is electrically connected to the first drive component 3, the second drive component 5, the third drive component 6 and the lifting drive motor 8 respectively.

[0056] Specifically, the control box is connected to a hand control board. The hand control board is equipped with independent operation buttons corresponding to the first drive component 3, the second drive component 5, the third drive component 6 and the standing drive motor 8, as well as a one-button linkage button for realizing compound posture adjustment, thereby realizing functions such as back lifting, leg adjustment, overall lifting, forward, backward, left and right tilting and standing.

[0057] In addition, the control box can also integrate sensor interfaces to monitor the bed status in real time and automatically stop the operation of the drive components or issue an alarm when there is an abnormality, further improving the safety and intelligence of use.

[0058] As an alternative, the electric actuator drive method of this embodiment can be replaced by other linear drive forms such as manual hydraulic mechanism, pneumatic drive mechanism, screw and nut mechanism or linear motor, as needed. As long as the same drive function can be achieved, they should be considered within the scope of protection of this application.

[0059] Example 2 Example 2 provides a carrier, including the multi-position adjustment unit of Example 1 and a walking mechanism 11 disposed at the bottom of the multi-position adjustment unit, so that the originally fixed nursing bed has the ability to move, which facilitates the transfer of patients between different areas.

[0060] Preferably, the walking mechanism 11 includes a plurality of casters, at least one of which has a braking device to ensure the stability of the vehicle when it is parked at a designated location.

[0061] To ensure the safety of the carrier as a nursing bed, protective railings 211 are provided on all four sides of the upper frame 21 of the multi-position adjustable unit.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-position regulating unit, characterized in that: The device includes a base and a folding frame assembly disposed on the base. The base is provided with a first driving member for driving the folding frame assembly to rise and fall. The folding frame assembly includes a lower bed frame and an upper bed frame. The upper bed frame is rotatably connected to one end of the lower bed frame. The upper bed frame is provided with a multi-segment bed board mechanism. The multi-segment bed board mechanism includes a back bed board, a first soft connecting board, a buttock bed board, a leg bed board, a second soft connecting board, and a foot bed board arranged sequentially along the length direction of the upper bed frame. The bottom of the upper bed frame is provided with a second driving member and a third driving member. The second driving member is used to drive the first soft connecting plate to push upward or release downward, so that the back bed board is raised or laid flat. The third driving component drives the second flexible connecting plate to push upward or release downward, so that the leg bed board, the second flexible connecting plate and the foot bed board form an arch or lie flat.

2. The multi-position regulating unit according to claim 1, characterized in that: The second driving component includes a back motor, the tail of which is fixed to the first support hole of the upper bed frame. The front end of the first push rod of the back motor is connected to a first arc-shaped rocker arm, which is arranged along the width direction of the first flexible connecting plate and fixed to the bottom of the first flexible connecting plate.

3. The multi-position regulating unit according to claim 1, characterized in that: The third driving component includes a leg motor, the tail of which is fixed to the second ear hole of the upper bed frame. The front end of the second push rod of the leg motor is connected to a second arc-shaped rocker arm, which is arranged along the width direction of the second flexible connecting plate and fixed to the bottom of the second flexible connecting plate.

4. The multi-position regulating unit according to claim 1, characterized in that: The first drive unit includes a first column motor, a second column motor, and a third column motor. The tail ends of the first column motor and the second column motor are fixed to the front end of the base and are parallel to each other. The tail end of the third column motor is fixed to the rear end of the base. The front ends of the push rods of the first column motor, the second column motor, and the third column motor are respectively fixedly connected to the lower bed frame through universal joint assemblies.

5. A multi-position regulating unit according to claim 4, characterized in that: The universal joint assembly includes a universal rotation mechanism, a first connector, and a second connector. The first connector is fixedly connected to the push rods of the first column motor, the second column motor, and the third column motor, respectively. The second connector is fixedly connected to the lower bed frame. The universal rotation mechanism includes a first rotating shaft and a second rotating shaft arranged perpendicularly to each other. The two ends of the first rotating shaft are rotatably connected to the first connector, and the two ends of the second rotating shaft are rotatably connected to the second connector.

6. A multi-position regulating unit according to claim 4, characterized in that: The first rotating shaft of the universal joint assembly on the push rod of the first column motor and the second column motor are aligned in the same direction, while the first rotating shaft of the universal joint assembly on the push rod of the third column motor is perpendicular to the first rotating shaft of the second column motor.

7. A multi-position regulating unit according to claim 1, characterized in that: The folding frame assembly includes a standing drive motor for driving the upper bed frame to rotate relative to the lower bed frame from a horizontal state to an upright state. The tail of the standing drive motor is fixed to the lower bed frame, and the push rod of the standing drive motor is fixed to the upper bed frame.

8. A multi-position regulating unit according to claim 7, characterized in that: The folding frame assembly also includes an auxiliary support assembly, which includes a first gas spring. The two ends of the first gas spring are respectively connected to the lower bed frame and the upper bed frame, and the first gas spring is arranged parallel to the lifting drive motor.

9. A multi-position regulating unit according to claim 8, characterized in that: The auxiliary support assembly further includes at least one set of linkage mechanisms, which include a first link, a second link, a second gas spring, and an auxiliary wheel frame. The first link is rotatably connected to the upper bed frame, and the second link is rotatably connected to the lower bed frame, with the first link and the second link being rotatably connected. The auxiliary wheel frame is located at the rear end of the upper bed frame. One end of the second gas spring is connected to the connection between the first link and the second link, and the other end is connected to the auxiliary wheel frame.

10. A multi-position regulating unit according to claim 9, characterized in that: The auxiliary wheel frame includes a wheel frame body and rollers disposed on the wheel frame body.

11. A multi-position regulating unit according to claim 7, characterized in that: It also includes a control box, which is electrically connected to the first drive unit, the second drive unit, the third drive unit and the lifting drive motor respectively.

12. A vehicle, characterized in that: The system includes a multi-position regulating unit as described in any one of claims 1 to 11, and a traveling mechanism disposed at the bottom of the multi-position regulating unit, wherein protective railings are also provided on the four sides of the upper frame of the multi-position regulating unit.

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