Intelligent nursing bed and linkage turning-over and vital sign monitoring method thereof

Abstract

The application discloses an intelligent nursing bed and a linkage turning-over and vital sign monitoring method thereof, and relates to the technical field of nursing beds. The intelligent nursing bed comprises a bed frame, a bed plate, a plurality of sensors, a controller and a bed body lateral turning linkage adjusting structure; the bed body lateral turning linkage adjusting structure comprises a driving device, a hinged component and a transmission mechanism; wherein the controller controls the driving device to drive the transmission mechanism to synchronously transmit the power of the driving device to the hinged component to drive the bed plate to laterally turn over when turning over is needed through the plurality of sensors. The application can realize smooth and synchronous automatic lateral turning over, and can effectively reduce the nursing burden by integrating a plurality of intelligent nursing functions.

Description

Technical Field

[0001] This invention relates to the field of nursing bed technology, and in particular to an intelligent nursing bed and its linked turning and vital sign monitoring method. Background Technology

[0002] For bedridden patients or disabled elderly people, regular turning is a key nursing measure to prevent bedsores and promote blood circulation. Currently, turning mainly relies on manual operation by caregivers, which is labor-intensive and makes it difficult to ensure the timeliness and standardization of turning. At the same time, the handling of bedridden patients' urination and defecation, monitoring of vital signs, daily communication, and basic recreational needs also place enormous pressure on nursing work.

[0003] While some existing electric nursing beds have backrest and leg-raising functions, their side-turning functions are often structurally complex, poorly coordinated, and unstable, or require multiple drive devices to control different sections, resulting in high costs and difficulties in synchronizing control. Furthermore, existing nursing beds are functionally limited, failing to intelligently integrate functions such as position adjustment, waste disposal, health monitoring and companionship, and massage, thus failing to meet the needs of comprehensive, automated nursing care. Summary of the Invention

[0004] The present invention aims to at least partially solve the technical problems in related technologies. Therefore, the first objective of the present invention is to provide an intelligent nursing bed that can achieve smooth, synchronized automatic side-turning and integrate multiple intelligent nursing functions, effectively reducing the burden of care.

[0005] The second objective of this invention is to provide a method for linking turning over and monitoring vital signs in an intelligent nursing bed.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A smart nursing bed, comprising: Bed frame 100; A bed board 200 is disposed on the bed frame 100, and the bed board 200 includes a left bed board A and a right bed board B; Multiple sensors 300 are installed on the bed board 200 or around the bed to collect physiological status and environmental information of the bedridden user; The controller 400, which is communicatively connected to the plurality of sensors 300, is disposed around the bed body; A bed tilting linkage adjustment structure 500 is connected to the bed frame 100 and the bed board 200 respectively, and is communicatively connected to the controller 400; wherein, the bed tilting linkage adjustment structure 500 includes: Two sets of drive units 501 are fixed on the bed frame 100 and are respectively set to correspond to the left bed board A and the right bed board B; At least four sets of hinge components 502, with each pair of hinge components 502 forming a pair, are arranged at intervals along the length direction of the corresponding bed board 200. Each set of hinge components 502 includes a support arm 5021 hinged to the bed frame 100 and a connecting rod 5022 hinged to the corresponding bed board 200. Two sets of transmission mechanisms 503 are provided corresponding to the left bed board A and the right bed board B, respectively connected between the corresponding drive device 501 and the corresponding sets of hinge components 502, for synchronously transmitting the power of the corresponding drive device 501 to the corresponding sets of hinge components 502 to drive the corresponding bed board 200 to tilt to the side.

[0007] Preferably, each group of transmission mechanisms 503 includes a main drive shaft 5031 connected to the output end of the corresponding drive device 501, and a driven component connected to each of the corresponding groups of hinge components 502; the main drive shaft 5031 extends along the length of the bed and converts the rotational motion into the swing of the support arm 5021 through the driven component.

[0008] Preferably, the driven component includes a crank 5032 fixedly connected to the main drive shaft 5031, and a push rod 5033 with one end connected to the crank 5032 and the other end hinged to the support arm 5021.

[0009] Preferably, the sensor 300 includes a wristband-type vital signs sensor, a temperature sensor, a humidity sensor, an odor sensor, and a pressure sensor array; the environmental information includes force information, temperature information, humidity information, and environmental odor information of the bed board 200.

[0010] Preferably, the bed board 200 further includes an upper bed board C, and a lifting mechanism is provided below the upper bed board C. The lifting mechanism is communicatively connected to the controller 400.

[0011] Preferably, the left bed board A and the right bed board B are respectively provided with multiple massage areas, including a shoulder massage area, a back massage area and a leg massage area. Each massage area is provided with multiple massage points, and a massage tentacle is provided below each massage point. Each massage tentacle is communicatively connected to the controller 400 through a drive mechanism.

[0012] Preferably, the device further includes an opening 600 located in the middle of the bed board 200, and a conveyor belt device 700 located below the opening 600; the controller 400 is used to control the lifting mechanism to lift the bedridden user when a discharge event is determined to have occurred based on the signals from the temperature sensor and humidity sensor, and to control the conveyor belt device 700 to operate to remove the soiled nursing pad; wherein, a nursing pad delivery mechanism is also provided below the upper bed board C, which is connected to the controller 400, and the controller 400 is also used to control the nursing pad delivery mechanism to deliver the nursing pad to the conveyor belt device 700 when the nursing pad delivery conditions are met.

[0013] Preferably, the system also includes a communication module integrated with the controller 400, and a voice interaction module 800 communicatively connected to the controller 400; wherein, when the controller 400 detects abnormal vital signs of the user through the wristband-type vital sign sensor, it sends an alarm and emergency information to a preset contact person through the communication module; the voice interaction module 800 is used to receive user voice commands to control the bed to turn to the side, start the massage or chat function.

[0014] Preferably, the device also includes a terminal bracket 900 mounted on the bed railing for fixing a mobile terminal; wherein, the voice interaction module 800 can also be configured to communicate with the mobile terminal fixed on the terminal bracket 900, and the voice interaction module 800 is also used to receive user voice commands to control the mobile terminal to perform the browsing function.

[0015] To achieve the above objectives, the present invention also provides a method for linking turning over and vital sign monitoring in an intelligent nursing bed, applied to the aforementioned intelligent nursing bed, the method comprising: The system continuously collects the physiological status, environmental information, and voice commands of bedridden users through multiple sensors and voice interaction modules. The controller analyzes the physiological state, environmental information, and voice commands to determine whether preset nursing action conditions are triggered. The nursing action conditions include at least one of the following: turning over, excretion handling, massage, and health alarm conditions. If the condition for turning over is determined to be triggered, the bed body side-turning linkage adjustment structure is controlled to work, driving the bed board to perform a side-turning action; If the condition for excretion treatment is triggered, the lifting mechanism is controlled to lift the bedridden user, and the conveyor belt device is controlled to replace the nursing pad. If the massage condition is triggered, the drive mechanism is controlled to drive at least one set of massage tentacles to massage at least one set of massage points. If the health alarm condition is determined to be triggered, an alarm will be initiated through the communication module.

[0016] This invention has at least the following technical effects: This invention achieves smooth and synchronous side-turning of the bed board along its entire length through a pair of drive devices, a pair of transmission mechanisms, and multiple sets of hinge components. It has the advantages of simple and reliable structure and low cost. This invention also intelligently links automatic side-turning with excrement detection and automatic replacement of nursing pads, which can significantly improve the automation and hygiene of nursing care. This invention also integrates vital sign monitoring and remote alarm functions, providing important safety protection for bedridden users. This invention can also realize automatic massage function for specified body parts through voice interaction, and through voice control and interactive functions, this invention enhances the user's self-control ability and entertainment experience.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the intelligent nursing bed according to an embodiment of the present invention.

[0019] Figure 2 This is a flowchart of the intelligent nursing bed linkage turning and vital sign monitoring method according to an embodiment of the present invention.

[0020] Reference numerals: 100, bed frame; 200, bed board; 300, sensor; 400, controller; 500, bed body side-tilting linkage adjustment structure; 501, drive device; A, left bed board; B, right bed board; 502, hinge assembly; 5021, support arm; 5022, connecting rod; 503, transmission mechanism; 5031, main drive shaft; 5032, crank; 5033, push rod; C, upper bed board; 600, opening; 700, conveyor belt device; 800, voice interaction module; 900, terminal bracket. Detailed Implementation

[0021] The following describes this embodiment in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0022] The following description, with reference to the accompanying drawings, describes the intelligent nursing bed and its linked turning and vital sign monitoring method according to this embodiment.

[0023] Figure 1 This is a schematic diagram of the structure of the intelligent nursing bed according to an embodiment of the present invention. Figure 1As shown, the intelligent nursing bed includes: a bed frame 100, a bed board 200, multiple sensors 300, a controller 400, and a bed tilting linkage adjustment structure 500. The bed board 200 is mounted on the bed frame 100 and includes a left bed board A and a right bed board B. Multiple sensors 300 are mounted on the bed board 200 or around the bed to collect physiological and environmental information of the bedridden user. The controller 400 is communicatively connected to the multiple sensors 300 and is located around the bed. The bed tilting linkage adjustment structure 500 is connected to both the bed frame 100 and the bed board 200, and is also communicatively connected to the controller 400. The bed tilting linkage adjustment structure 500 includes: two sets of drive devices 501, at least four sets of hinge assemblies 502, and two sets of transmission mechanisms 503. Two sets of drive devices 501 are fixed on the bed frame 100 and are respectively set to the left bed board A and the right bed board B; at least four sets of hinge components 502 are arranged in pairs along the length of the corresponding bed board 200. Each set of hinge components 502 includes a support arm 5021 hinged to the bed frame 100 and a connecting rod 5022 hinged to the corresponding bed board 200; two sets of transmission mechanisms 503 are set to the left bed board A and the right bed board B respectively and are respectively connected between the corresponding drive device 501 and the corresponding set of hinge components 502. They are used to synchronously transmit the power of the corresponding drive device 501 to the corresponding set of hinge components 502 to drive the corresponding bed board 200 to tilt to the side.

[0024] In this embodiment, Figure 1 Specifically, this is a schematic diagram showing the left bed board A tilting upwards in the direction of rotation shown in the image. The sensor 300 specifically includes a wristband-type vital signs sensor, a temperature sensor, a humidity sensor, an odor sensor, and a pressure sensor array. It can be understood that the temperature sensor, humidity sensor, and odor sensor can be... Figure 1 As shown, pressure sensors are positioned at the bed board locations corresponding to the bedridden user's excretion. The pressure sensor array can be evenly arranged along the length of the bed board 200 and can be evenly distributed on the left bed board A and right bed board B. The specific location of the wristband-type vital signs sensor is not shown in the figure; it is mainly worn on the bedridden user's wrist and is used to detect physiological states including heart rate, blood oxygen saturation, respiratory rate, and electrocardiogram signals. Environmental information includes the force information on the bed board 200, temperature information, humidity information, and environmental odor information, such as the odor of the bedridden user's excrement, specifically ammonia, methane, and hydrogen sulfide.

[0025] In this embodiment, a wristband-type vital sign sensor can be used to measure the vital signs of bedridden users. Temperature, humidity, and odor sensors can be used to measure excretion events. A pressure sensor array can be used to measure whether turning over is necessary. For example, if the pressure sensors evenly distributed on the left bed board A collect force data for a preset duration, it is determined that a turning event needs to be triggered. This embodiment achieves comprehensive, non-intrusive real-time monitoring of the user's health, safety, and care needs through multiple sensors. Furthermore, cross-validation can be performed through multi-sensor information fusion, which significantly reduces the risk of false alarms from a single sensor, thereby making the system's judgment and response more accurate and timely.

[0026] In this embodiment, each pair of hinge components 502 is a pair, wherein a pair of hinge components 502 may be disposed below the back and leg areas of the bed board 200. Each set of hinge components 502 may include a support arm 5021 hinged to the bed frame 100 via a first hinge axis, and a connecting rod 5022 whose two ends are respectively hinged to the upper end of the support arm 5021 and the bottom of the bed board 200 via a second hinge axis and a third hinge axis.

[0027] This embodiment uses two sets of drive devices and corresponding linkage structures to independently control the left bed board A and the right bed board B, so that the side-turning action of each bed board is achieved by a single drive source driving multiple sets of hinge components synchronously through a transmission mechanism. This avoids the problems of structural complexity, high cost, and difficulty in synchronous control caused by using multiple drive devices to drive different points separately. The intelligent nursing bed of this embodiment can achieve smooth and synchronous side-turning through a simplified and reliable mechanical structure.

[0028] In one embodiment of the present invention, each transmission mechanism 503 includes a main drive shaft 5031 connected to the output end of a corresponding drive device 501, and a driven component connected to each corresponding set of hinge components 502. The main drive shaft 5031 extends along the length of the bed and converts the rotational motion into the swinging motion of the support arm 5021 through the driven component. The driven component includes a crank 5032 fixedly connected to the main drive shaft 5031, and a push rod 5033 with one end connected to the crank 5032 and the other end hinged to the support arm 5021.

[0029] When the drive unit 510 drives the main drive shaft 5031 to rotate, the two cranks 5032 located in the back area and the leg area rotate synchronously, and push the two support arms 5021 to swing synchronously through the push rod 5033, which in turn drives the left bed board A or the right bed board B to tilt to the side through the connecting rod 5022.

[0030] In this embodiment, each transmission mechanism uses a main drive shaft extending along the length of the bed as the core power distribution component. This ensures that the single rotational power output from a drive unit is precisely and synchronously distributed to each hinge point (support arm) along the longitudinal direction of the bed board. This guarantees that the height and timing of the bed board's rise / fall during the side-turning process are strictly synchronized, completely eliminating bed board twisting, jamming, or user discomfort caused by asynchronous multi-point drives. This embodiment also utilizes a crank-pull mechanism to smoothly convert the continuous rotation of the drive unit (such as a rotary motor) into the reciprocating swing of the support arms, thus achieving a smooth, shock-free side-turning motion of the bed board. Furthermore, by changing the length of the crank, the angle range of the bed board's side-turning can be easily adjusted to adapt to different nursing needs.

[0031] In one embodiment of the present invention, the bed board 200 further includes an upper bed board C, and a lifting mechanism is provided below the upper bed board C. The lifting mechanism is communicatively connected to the controller 400.

[0032] In this embodiment, when it is necessary to lift the bedridden user, the controller 400 can control the lifting mechanism (not shown in the figure) to lift the upper bed board C. The controller 400 in this embodiment can also communicate with the voice interaction module 800 (described later). The user can interact with the voice interaction module 800 via voice. After receiving a voice command, the voice interaction module 800 sends it to the controller 400, which then executes the corresponding action. Thus, the user can adjust the angle of the backrest, i.e., the upper bed board C, via voice control, achieving various comfortable positions such as sitting, lying down, reading, and eating, thereby improving the comfort and autonomy of bed rest.

[0033] In one embodiment of the present invention, such as Figure 1 As shown, the left bed board A and the right bed board B are also equipped with multiple massage areas, including a shoulder massage area, a back massage area and a leg massage area, which are the areas enclosed by dotted lines. Each massage area is equipped with multiple massage points, i.e., circular points. Each massage point is equipped with a massage tentacle below it. Each massage tentacle is connected to the controller 400 through a drive mechanism.

[0034] As described above, the controller 400 is communicatively connected to the voice interaction module 800. When a user needs a shoulder massage, they send a shoulder massage command via voice. After receiving the corresponding command, the voice interaction module 800 parses it and forwards it to the controller 400. The controller 400 then controls the massage tentacle movements at multiple massage points in the shoulder massage area. The number of massage tentacle movements at the corresponding massage points can be controlled according to the intensity of the massage command sent via voice. For example, if a back massage command is sent via voice at medium intensity, the controller 400 will control the massage tentacle movements at two diagonally opposite massage points.

[0035] In this embodiment, the massage function is divided into zones, and each massage point is equipped with an independently controlled massage hand. This allows the system to provide targeted massage to specific body parts according to preset programs or user voice commands, effectively relieving muscle stiffness, soreness, and poor blood circulation caused by prolonged bed rest, thus improving the precision and comfort of care. Furthermore, this invention integrates the massage function into the nursing bed and links it with the control system, enabling automated physiotherapy and reducing reliance on additional physiotherapy equipment or manual massage.

[0036] In one embodiment of the present invention, the intelligent nursing bed further includes an opening 600 disposed in the middle of the bed board 200, and a conveyor belt device 700 located below the opening 600; the controller 400 is used to control the lifting mechanism to lift the bedridden user and control the conveyor belt device 700 to remove the soiled nursing pad when it is determined that an excretion event has occurred based on the signals of the temperature sensor, humidity sensor and odor sensor; wherein, a nursing pad delivery mechanism is also provided below the upper bed board C, which is connected to the controller 400, and the controller 400 is also used to control the nursing pad delivery mechanism to deliver the nursing pad to the conveyor belt device 700 when the nursing pad delivery conditions are met.

[0037] Specifically, when a user triggers a bowel movement event via voice, or when various sensors detect and determine that a bowel movement event has been triggered, the controller 400 controls the pad delivery mechanism to deliver a new, clean pad to the conveyor belt device 700. Based on the distance between the delivery point and the opening 600, the conveying distance is determined, thus calculating the conveying time of the conveyor belt device 700. After this preset program control, the clean pad is delivered to below the opening 600. The height of the conveyor belt device 700 is convenient for the bedridden user to reach. After receiving the clean pad, the bedridden user replaces the soiled pad, places it in the conveyor belt device 700, and sends a voice command to the voice interaction module 800, which then forwards it to the controller 400. The controller 400 then activates the conveyor belt device 700 to remove the soiled pad. It is understood that when the controller 400 determines that a bowel movement event has been triggered, it will simultaneously control the lifting mechanism to lift the bedridden user, i.e., lift the backrest.

[0038] In this embodiment, the entire process of handling excretion events requires little or no human intervention, greatly reducing the workload and awkward contact for caregivers, significantly improving the level of automation and hygiene standards of care, and maintaining the dignity of bedridden users. Furthermore, this invention can quickly and automatically change soiled nursing pads, minimizing the contact time between the user's skin and excrement, effectively preventing complications such as incontinence dermatitis and bedsore infections.

[0039] In one embodiment of the present invention, the intelligent nursing bed further includes a communication module integrated with the controller 400, and a voice interaction module 800 that is communicatively connected to the controller 400 as described above. When the controller 400 detects abnormal vital signs in the user via a wristband-type vital sign sensor, it sends an alarm and emergency information to a preset contact person through the communication module. The voice interaction module 800 can be used to receive user voice commands to control the bed to tilt, activate massage, or provide conversational support.

[0040] When the controller 400 detects abnormal vital signs directly through the wristband-type vital sign sensor, it can directly dial the emergency contact number stored in the communication module. Alternatively, if the user experiences any physical abnormality or discomfort, they can send a voice command to the voice interaction module 800, which will then parse the command and forward it to the controller 400, which will then control the execution of alarm and emergency actions. Understandably, the user can also use the voice interaction module 800 for voice control of bed turning or for a chat / entertainment experience.

[0041] In this embodiment, through the voice interaction module, users can control various functions of the bed in a simple way, such as turning over, massage, calling, etc., and start the companion function, which can greatly enhance the user's sense of control over the environment, alleviate loneliness, and improve psychological comfort and quality of life.

[0042] In one embodiment of the present invention, the intelligent nursing bed further includes a terminal bracket 900 mounted on the bed railing for fixing a mobile terminal such as a mobile phone or tablet. The voice interaction module 800 can also be configured to communicate with the mobile terminal fixed on the terminal bracket 900, and the voice interaction module 800 is also used to receive user voice commands to control the mobile terminal to perform browsing functions.

[0043] When users need to read news or e-books, they can use voice control to control the terminal device on the terminal stand 900, thereby realizing the automatic page turning function and greatly improving the user experience.

[0044] In this embodiment, the terminal bracket is combined with a voice interaction module, allowing users to control a personal mobile terminal fixed to the bedside via voice. This enables users to engage in entertainment and social activities such as browsing news, watching videos, and making video calls, without the need for strenuous handheld operation or touchscreen manipulation. This transforms the nursing bed into a comprehensive platform integrating care, entertainment, and communication, greatly enriching the daily lives of bedridden users.

[0045] Furthermore, the present invention also provides a method for linking turning over and vital sign monitoring in an intelligent nursing bed, which is applied to the aforementioned intelligent nursing bed. Figure 2 This is a flowchart illustrating the intelligent nursing bed-linked turning and vital sign monitoring method according to an embodiment of the present invention. Figure 2As shown, the method includes: Step S1: Continuously collect the bedridden user's physiological status, environmental information, and voice commands through multiple sensors and a voice interaction module.

[0046] Step S2: The controller analyzes the physiological state, environmental information and voice commands to determine whether preset nursing action conditions are triggered. Nursing action conditions include at least one of the following: turning over condition, excretion treatment condition, massage condition and health alarm condition.

[0047] Step S3: If the turning condition is triggered, control the bed side-turning linkage adjustment structure to work and drive the bed board to perform the side-turning action; if the excretion treatment condition is triggered, control the lifting mechanism to lift the bedridden user and control the conveyor belt device to replace the nursing pad; if the massage condition is triggered, control the drive mechanism to drive at least one set of corresponding massage tentacles to massage at least one set of corresponding massage points; if the health alarm condition is triggered, initiate an alarm through the communication module.

[0048] It should be noted that the intelligent nursing bed linkage turning and vital sign monitoring method in this embodiment of the invention can be found in the specific implementation of the intelligent nursing bed described above. To avoid redundancy, it will not be repeated here.

[0049] In summary, this invention achieves smooth and synchronous side-turning of the bed board along its entire length through a pair of drive devices, a pair of transmission mechanisms, and multiple sets of hinge components. It boasts advantages such as simple and reliable structure and low cost. Furthermore, this invention intelligently links automatic side-turning with excrement detection and automatic pad replacement functions, significantly improving the automation and hygiene of care. It also integrates vital sign monitoring and remote alarm functions, providing crucial safety assurance for bedridden users. Moreover, this invention enables automatic massage of designated body parts through voice interaction, enhancing user autonomy and entertainment experience through voice control and interactive functions.

[0050] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0051] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent nursing bed, characterized in that, include: Bed frame (100); A bed board (200) is disposed on the bed frame (100), the bed board (200) including a left bed board A and a right bed board B; Multiple sensors (300) are installed on the bed board (200) or around the bed to collect physiological and environmental information of the bedridden user; A controller (400), which is communicatively connected to a plurality of said sensors (300), is disposed around the bed body; A bed tilting linkage adjustment structure (500) is connected to the bed frame (100) and the bed board (200) respectively, and is communicatively connected to the controller (400); wherein, the bed tilting linkage adjustment structure (500) includes: Two sets of drive units (501) are fixed on the bed frame (100) and are respectively set to correspond to the left bed board A and the right bed board B; At least four sets of hinge components (502), with each pair of hinge components (502) arranged at intervals along the length of the corresponding bed board (200). Each set of hinge components (502) includes a support arm (5021) hinged to the bed frame (100) and a connecting rod (5022) hinged to the corresponding bed board (200). Two sets of transmission mechanisms (503) are provided corresponding to the left bed board A and the right bed board B, respectively connected between the corresponding drive device (501) and the corresponding sets of hinge components (502), for synchronously transmitting the power of the corresponding drive device (501) to the corresponding sets of hinge components (502) to drive the corresponding bed board (200) to tilt to the side.

2. The intelligent nursing bed as described in claim 1, characterized in that, Each set of the transmission mechanism (503) includes a main drive shaft (5031) connected to the output end of the corresponding drive device (501), and a driven component connected to each of the corresponding sets of hinge components (502); the main drive shaft (5031) extends along the length of the bed and converts the rotational motion into the swing of the support arm (5021) through the driven component.

3. The intelligent nursing bed as described in claim 2, characterized in that, The driven component includes a crank (5032) fixedly connected to the main drive shaft (5031), and a push rod (5033) with one end connected to the crank (5032) and the other end hinged to the support arm (5021).

4. The intelligent nursing bed as described in claim 1, characterized in that, The sensor (300) includes a wristband-type vital signs sensor, a temperature sensor, a humidity sensor, an odor sensor, and a pressure sensor array; the environmental information includes the force information, temperature information, humidity information, and environmental odor information of the bed board (200).

5. The intelligent nursing bed as described in claim 4, characterized in that, The bed board (200) also includes an upper bed board C, and a lifting mechanism is provided below the upper bed board C. The lifting mechanism is communicatively connected to the controller (400).

6. The intelligent nursing bed as described in claim 1, characterized in that, The left bed board A and the right bed board B are also provided with multiple massage areas, including a shoulder massage area, a back massage area and a leg massage area. Each massage area is provided with multiple massage points, and each massage point is provided with a massage tentacle. Each massage tentacle is connected to the controller (400) through a drive mechanism.

7. The intelligent nursing bed as described in claim 5, characterized in that, It also includes an opening (600) in the middle of the bed board (200) and a conveyor belt device (700) located below the opening (600); the controller (400) is used to control the lifting mechanism to lift the bedridden user when a discharge event is determined to have occurred based on the signals from the temperature sensor and the humidity sensor, and to control the conveyor belt device (700) to operate to remove the soiled nursing pad; wherein, a nursing pad delivery mechanism is also provided below the upper bed board C, which is connected to the controller (400), and the controller (400) is also used to control the nursing pad delivery mechanism to deliver the nursing pad to the conveyor belt device (700) when the nursing pad delivery conditions are met.

8. The intelligent nursing bed as described in claim 1, characterized in that, It also includes a communication module integrated with the controller (400) and a voice interaction module (800) communicatively connected to the controller (400); wherein, when the controller (400) detects abnormal vital signs of the user through the wristband-type vital sign sensor, it sends an alarm and emergency information to a preset contact person through the communication module; the voice interaction module (800) is used to receive user voice commands to control the bed to turn over, start the massage or chat function.

9. The intelligent nursing bed as described in claim 8, characterized in that, It also includes a terminal bracket (900) installed on the bed railing for fixing a mobile terminal; wherein, the voice interaction module (800) can also be configured to communicate with the mobile terminal fixed on the terminal bracket (900), and the voice interaction module (800) is also used to receive user voice commands to control the mobile terminal to realize the browsing function.

10. A method for linking turning over and vital sign monitoring in an intelligent nursing bed, applied to the intelligent nursing bed as described in any one of claims 1 to 9, the method comprising: The system continuously collects the physiological status, environmental information, and voice commands of bedridden users through multiple sensors and voice interaction modules. The controller analyzes the physiological state, environmental information, and voice commands to determine whether preset nursing action conditions are triggered. The nursing action conditions include at least one of the following: turning over, excretion handling, massage, and health alarm conditions. If the condition for turning over is determined to be triggered, the bed body side-turning linkage adjustment structure is controlled to work, driving the bed board to perform a side-turning action; If the condition for excretion treatment is triggered, the lifting mechanism is controlled to lift the bedridden user, and the conveyor belt device is controlled to replace the nursing pad. If the massage condition is triggered, the drive mechanism is controlled to drive at least one set of massage tentacles to massage at least one set of massage points. If the health alarm condition is determined to be triggered, an alarm will be initiated through the communication module.

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