A turning-over mechanism and a turning-over nursing bed

Abstract

This invention discloses a turning mechanism and a turning nursing bed, belonging to the field of nursing beds. The turning mechanism of this invention includes a mounting base installed on the bed frame body and located below the bed board assembly, and a turning drive mechanism disposed on the mounting base. The bed board assembly includes a middle bed board and side bed boards located on both sides of the middle bed board. The side bed boards include outer side bed boards and telescopic bed boards. The outer side of the outer side bed board is rotatably connected to the corresponding side of the bed frame body. The telescopic bed board slides with the outer side bed board along the width direction of the bed and is rotatably connected to the corresponding side of the middle bed board. The turning drive mechanism has a drive member capable of driving the corresponding side bed board to turn over and a locking member for locking the telescopic bed board. When the drive member drives the side bed board on one side to turn over, the locking member locks the turned side bed board... The telescopic bed board is locked to restrict its sliding relative to the outer side bed board, while the telescopic bed board on the other side is in an unlocked state where it can slide relative to the outer side bed board. By designing the side bed boards as telescopic bed board structures, and cooperating with the turning drive mechanism to drive the side bed boards to flip, the middle bed board can be turned over. During the turning process, the horizontal side bed boards can be extended accordingly, allowing the middle bed board to move as a whole to the opposite side of the turning, increasing the space on the patient's turning side and improving the patient's sense of security and comfort when turning over. Furthermore, the cooperation between the drive component that can drive the corresponding side bed board to flip and the locking component used to lock the telescopic bed board makes the turning movement more stable and reliable.

Description

Technical Field

[0001] This invention relates to a nursing bed, and more specifically, to a turning mechanism and a turning nursing bed. Background Technology

[0002] With the accelerating aging of the population, the use of multi-functional nursing beds is becoming increasingly common. Turning-over nursing beds can assist patients in turning over, preventing bedsores caused by prolonged bed rest and reducing the workload of caregivers. Therefore, the ability to turn over is gradually becoming a basic function of multi-functional nursing beds.

[0003] Common turning beds utilize a rotating bed surface to facilitate patient turning. Their turning mechanisms often employ different bed surface rotation methods (half- or third-hand) to facilitate lateral turning. Half-bed turning beds divide the bed surface into two parts, using one side to rotate upwards and push the patient to the other side. Third-bed turning beds divide the bed surface into three parts (left, center, and right), typically using rotation of both sides. However, practical application has revealed that regardless of the bed surface rotation structure, during turning, the patient is always pushed to one side of the bed, rather than being in the center. This results in very little space on the side the patient is turning, creating a feeling of pressure that could lead to falling off the bed, reducing comfort, and even causing injury from contact with the guardrails, posing unpredictable risks to daily care.

[0004] For example, Chinese patent application No. 202310378109.8, entitled "A Multifunctional Electric Turning Bed," was published on June 30, 2023. It includes a bed frame body, a bed board assembly, a bed lifting mechanism, a turning drive mechanism, guardrails, bed end panels, and a turning bed frame. The left and right sides of the turning bed frame are supported on corresponding support seats on the bed frame body by rollers. The turning drive mechanism is located in the middle of the bed frame body and the turning bed frame, and consists of a turning drive, a push shaft, a connecting rod, a connecting shaft, a middle connecting rod, a first turning push rod, and a second turning push rod. This patent application has advantages such as stable and balanced force distribution on the turning bed frame, stable turning movements, and a longer turning lever arm and good structural stability in the turning drive mechanism. However, its turning movement still has the aforementioned problems: the turning bed frame uses a rotating shaft fixed on one side for turning movements, often pushing the patient to the outer 1 / 3 of the bed surface, resulting in limited space for the patient to turn. Summary of the Invention

[0005] 1. The technical problem that the invention aims to solve

[0006] The purpose of this invention is to overcome the aforementioned shortcomings of existing turning care beds and to provide a turning mechanism and a turning care bed. Using the technical solution of this invention, the side bed panels are designed as extendable structures. A turning drive mechanism drives the side bed panels to rotate, thereby causing the middle bed panel to perform a turning movement. During the turning process, the horizontal side bed panels can extend accordingly, allowing the middle bed panel to move as a whole to the opposite side of the turning position, increasing the space on the patient's turning side and improving the patient's sense of security and comfort during turning. Furthermore, the cooperation between the drive component that drives the corresponding side bed panel to rotate and the locking component that locks the extendable bed panel makes the turning movement more stable and reliable.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0009] A turning mechanism of the present invention includes a mounting base installed on the bed frame body and located below the bed board assembly, and a turning drive mechanism disposed on the mounting base, wherein:

[0010] The bed board assembly includes a middle bed board and side bed boards located on both sides of the middle bed board. The side bed board includes an outer side bed board and a telescopic bed board. The outer side of the outer side bed board is rotatably connected to the corresponding side of the bed frame body. The telescopic bed board and the outer side bed board are slidably engaged along the width direction of the bed and are rotatably connected to the corresponding side of the middle bed board.

[0011] The turning drive mechanism has a drive member capable of driving the side bed board on the corresponding side to turn over and a locking member for locking the telescopic bed board; when the drive member drives the side bed board on one side to turn over, the locking member locks the telescopic bed board of the turned side bed board to restrict its sliding relative to the outer side bed board, while the telescopic bed board of the other side bed board is in an unlocked state that can slide relative to the outer side bed board.

[0012] Furthermore, the turning drive mechanism includes a guide rod disposed on a mounting base along the width direction of the bed. Two sets of sliders are slidably disposed on the guide rod. The two sets of sliders are respectively connected to a turning swing arm via a connecting rod. The turning swing arm is located below the side bed board on the corresponding side, and the outer end of the turning swing arm is hinged to the outer side bed board on the corresponding side. A push block is disposed between the two sets of sliders. The push block is connected to a turning driver disposed on the mounting base. The turning driver drives the push block to move left and right to push the slider on the corresponding side to move. The turning swing arm on the corresponding side is rotated through the connecting rod to form the aforementioned drive component. A limiting hook is disposed at the free end of the turning swing arm. When the turning swing arm rotates upward, the limiting hook hooks onto the corresponding telescopic bed board to form the aforementioned locking component.

[0013] Furthermore, springs are also fitted on both sides of the guide rod to act on the corresponding sliders so that the two sets of sliders tend to move towards the middle. The push block is slidably mounted on the guide rod, and the turning driver is an electric push rod.

[0014] Furthermore, the bed frame body is provided with a bed board telescopic limiting seat plate located below the middle bed board. At least one side of the bed board telescopic limiting seat plate is provided with a limiting groove extending along the width direction of the bed. The telescopic bed board is provided with a bed board telescopic roller that can cooperate with the limiting groove on the side near the middle bed board. When the side bed board on one side flips, the telescopic bed board in the other side bed board slides along the width direction of the bed, and the bed board telescopic roller on it slides into the limiting groove.

[0015] The present invention provides a turning and care bed, comprising a bed frame body, a bed board assembly, a backrest lifting mechanism, a leg bending mechanism, and a bed lifting mechanism. The bed frame body is mounted on the bed lifting mechanism. The bed board assembly consists of a backrest board, a hip board, a thigh board, and a calf board arranged sequentially. Each of the backrest board, hip board, thigh board, and calf board includes a middle board and side boards located on both sides of the middle board. The backrest lifting mechanism is located on the bed frame body and below the backrest board. The leg bending mechanism is located on the bed frame body and below the thigh board.

[0016] It also includes the aforementioned turning mechanism, which is located below the buttocks bed board. The side panels of the back bed board, buttocks bed board, thigh bed board, and calf bed board all include an outer side panel and a telescopic bed board. The outer side panel of the buttocks bed board is rotatably connected to the corresponding side of the bed frame body. The outer side panel of the back bed board is hinged to the outer side panel of the buttocks bed board. The outer side panel of the thigh bed board is hinged to the outer side panel of the buttocks bed board. The outer side panel of the calf bed board is hinged to the outer side panel of the thigh bed board.

[0017] Furthermore, the backrest lifting mechanism includes a backrest lifting driver, a backrest lifting shaft, a backrest lifting arm, a backrest lifting support rod, and a backrest lifting roller. The backrest lifting shaft is rotatably mounted on the bed frame body. The backrest lifting arm and the backrest lifting support rod are respectively fixed on the backrest lifting shaft. The backrest lifting roller is mounted on the free end of the backrest lifting support rod. One end of the backrest lifting driver is hinged to the bed frame body, and the driving end of the backrest lifting driver is hinged to the free end of the backrest lifting arm.

[0018] Furthermore, the leg-bending mechanism includes a leg-bending driver, a leg-bending pivot, a leg-bending swing arm, a leg-bending support rod, and a leg-bending roller. The leg-bending pivot is rotatably mounted on the bed frame body. The leg-bending swing arm and the leg-bending support rod are respectively fixed on the backrest pivot. The leg-bending roller is mounted on the free end of the leg-bending support rod. One end of the leg-bending driver is hinged to the bed frame body, and the driving end of the leg-bending driver is hinged to the free end of the leg-bending swing arm.

[0019] Furthermore, the bed lifting mechanism includes a bottom support frame, an upper support frame, a lifting drive mechanism, and casters. The two ends of the upper support frame are connected to the bottom support frame through the lifting drive mechanism. The bed frame body is fixed on the upper support frame, and the casters are located at the four corners of the bottom support frame.

[0020] 3. Beneficial effects

[0021] Compared with existing known technologies, the technical solution provided by this invention has the following significant advantages:

[0022] (1) A turning mechanism and a turning care bed according to the present invention, wherein the turning mechanism includes a mounting base installed on the bed frame body and located below the bed board assembly, and a turning drive mechanism provided on the mounting base; the bed board assembly includes a middle bed board and side bed boards located on both sides of the middle bed board; the side bed boards include an outer side bed board and a telescopic bed board; the outer side of the outer side bed board is rotatably connected to the corresponding side of the bed frame body; the telescopic bed board and the outer side bed board are slidably engaged along the width direction of the bed and rotatably connected to the corresponding side of the middle bed board; the turning drive mechanism has a drive member capable of driving the corresponding side bed board to turn over and a locking member for locking the telescopic bed board; when the drive member drives the side bed board on one side to turn over, the locking member will... The telescopic bed board of the flipping side panel is locked to restrict its sliding relative to the outer side panel, while the telescopic bed board of the other side panel is in an unlocked state where it can slide relative to the outer side panel. By designing the side panels as telescopic bed board structures, and cooperating with the turning drive mechanism to flip the side panels, the middle bed board is driven to perform a turning movement. During the turning process, the horizontal side panels can extend accordingly, allowing the middle bed board to move as a whole to the opposite side of the turning, increasing the space on the patient's turning side and improving the patient's sense of security and comfort when turning. Furthermore, the cooperation between the drive component that can drive the corresponding side panel to flip and the locking component used to lock the telescopic bed board makes the turning movement more stable and reliable.

[0023] (2) A turning mechanism and a turning nursing bed of the present invention, wherein the turning drive mechanism includes a guide rod disposed on a mounting base along the width direction of the bed, two sets of sliders are slidably disposed on the guide rod, and the two sets of sliders are respectively connected to a turning swing rod through a connecting rod. The turning swing rod is located below the side bed board on the corresponding side, and the outer end of the turning swing rod is hinged to the outer side bed board on the corresponding side. A push block is disposed between the two sets of sliders, and the push block is connected to a turning driver disposed on the mounting base. The turning driver drives the push block to move left and right to push the slider on the corresponding side to move. The turning swing rod on the corresponding side is rotated through the connecting rod to form the above-mentioned drive member. A limit hook is disposed at the free end of the turning swing rod. When the turning swing rod is rotated upward, the limit hook hooks the corresponding telescopic bed board to form the above-mentioned locking member. The above-mentioned turning drive mechanism has a simple and compact structure, is easy to manufacture and install, and the turning action of the side bed board and the locking action of the telescopic bed board are completed synchronously, and the turning movement has good stability.

[0024] (3) The present invention provides a turning mechanism and a turning nursing bed, wherein the guide rod is also fitted with springs on both sides acting on the corresponding sliders so that the two sets of sliders tend to move towards the middle. The springs can ensure that the bed board automatically resets after turning over. The push block is slidably disposed on the guide rod, and the turning driver is an electric push rod. The linear movement is smooth and stable. The left and right turning movements can be completed by the extension and retraction movement of a set of electric push rods, making the turning movement more stable.

[0025] (4) A turning mechanism and a turning care bed of the present invention, wherein a bed board telescopic limiting seat plate is provided on the main body of the bed frame below the middle bed board, and a limiting groove extending along the width direction of the bed is provided on one side of the bed board telescopic limiting seat plate, and a bed board telescopic roller that can cooperate with the limiting groove is provided on the side of the telescopic bed board near the middle bed board; when the side bed board on one side is flipped, the telescopic bed board on the other side slides along the width direction of the bed, and the bed board telescopic roller on it slides into the limiting groove; by using the bed board telescopic limiting seat plate and the bed board telescopic roller to cooperate, the horizontally telescopic bed board is limited, which can prevent the side bed board on that side from flipping up and causing danger, and further ensure the stability and safety of the turning action. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a turning and nursing bed according to the present invention from one angle;

[0027] Figure 2 This is a three-dimensional structural diagram of a turning and nursing bed according to the present invention from another angle;

[0028] Figure 3 This is a side view of a turning and care bed according to the present invention;

[0029] Figure 4This is a schematic diagram of the back-lifting mechanism and leg-flexing mechanism in a turning and nursing bed according to the present invention;

[0030] Figure 5 This is a schematic diagram showing the installation position of a turning mechanism of the present invention on a turning care bed;

[0031] Figure 6 This is a three-dimensional structural diagram of a turning mechanism according to the present invention;

[0032] Figure 7 This is a cross-sectional view of the unflipped state of a flipping mechanism according to the present invention;

[0033] Figure 8 This is a cross-sectional structural diagram of the turning mechanism of the present invention in the turning state;

[0034] Figure 9 This is a three-dimensional structural diagram of the bed lifting mechanism in this invention.

[0035] Explanation of the labels in the diagram:

[0036] 1. Bed frame body; 2. Turning mechanism; 2-1. Mounting base; 2-2. Turning actuator; 2-3. Connecting rod; 2-4. Turning swing rod; 2-4a. Limiting hook; 2-5. Bed board telescopic rollers; 2-6. Bed board telescopic limiting seat plate; 2-7. Sliding block; 2-8. Guide rod; 2-9. Spring; 2-10. Pushing block; 3. Bed board assembly; 3a. Backrest bed board; 3b. Hiprest bed board; 3c. Thigh bed board; 3d. Lower leg bed board; 3-1. Middle bed board; 3-2. Side bed boards; 3-2 A. Side outer bed board; 3-2B. Telescopic bed board; 4. Backrest lifting mechanism; 4-1. Backrest lifting driver; 4-2. Backrest lifting pivot; 4-3. Backrest lifting swing arm; 4-4. Backrest lifting support rod; 4-5. Backrest lifting roller; 5. Leg bending mechanism; 5-1. Leg bending driver; 5-2. Leg bending pivot; 5-3. Leg bending swing arm; 5-4. Leg bending support rod; 5-5. Leg bending roller; 6. Bed lifting mechanism; 6-1. Bottom support frame; 6-2. Upper support frame; 6-3. Lifting drive mechanism; 6-4. Casters. Detailed Implementation

[0037] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0038] [Example]

[0039] Reference Figures 5 to 8As shown, a turning mechanism in this embodiment includes a mounting base 2-1 installed on the bed frame body 1 and located below the bed board assembly 3, and a turning drive mechanism provided on the mounting base 2-1. The turning drive mechanism is used to drive the bed board assembly 3 to perform turning movements. The aforementioned bed board assembly 3 includes a middle bed board 3-1 and side bed boards 3-2 located on both sides of the middle bed board 3-1. The side bed board 3-2 further includes an outer side bed board 3-2A and a telescopic bed board 3-2B. The outer side of the outer side bed board 3-2A is rotatably connected to the corresponding side of the bed frame body 1. The telescopic bed board 3-2B slides with the outer side bed board 3-2A along the width direction of the bed and is rotatably connected to the corresponding side of the middle bed board 3-1, so that the telescopic bed board 3-2B can extend and retract within the corresponding outer side bed board 3-2A.

[0040] The turning drive mechanism has a drive member capable of rotating the corresponding side bed board 3-2 and a locking member for locking the telescopic bed board 3-2B. When the drive member rotates one side bed board 3-2, the locking member locks the telescopic bed board 3-2B of the rotated side bed board 3-2 to restrict its sliding relative to the outer side bed board 3-2A, while the telescopic bed board 3-2B of the other side bed board 3-2 is in an unlocked state where it can slide relative to the outer side bed board 3-2A. Specifically, refer to... Figure 7 As shown, with the bed board assembly 3 laid flat, the telescopic bed board 3-2B retracts into the corresponding side outer bed board 3-2A. (Refer to...) Figure 8 As shown, when turning over to one side, the locking device first locks the flipped side bed board 3-2, preventing its telescopic bed board 3-2B from extending outward. Then, the driving device drives the side bed board 3-2 to flip. The flipped-up side bed board 3-2 pulls one end of the middle bed board 3-1 upward and moves it to one side. At this time, since the telescopic bed board 3-2B on the other side is unlocked, as the middle bed board 3-1 moves to one side, the lower side of the middle bed board 3-1 pulls the unlocked telescopic bed board 3-2B towards the middle of the bed, thereby increasing the space on the turning side. Furthermore, the middle bed board 3-1 moves to one side as a whole during the turning movement, allowing the patient to basically stay in the middle of the bed when turning over, improving the patient's sense of security and comfort when turning over.

[0041] By adopting the above technical solution, the side bed board 3-2 is designed as a retractable bed board structure. In conjunction with the turning drive mechanism, the side bed board 3-2 is turned over to drive the middle bed board 3-1 to perform a turning movement. During the turning process, the horizontal side bed board 3-2 can be extended accordingly, so that the middle bed board 3-1 moves as a whole to the opposite side of the turning, increasing the space on the patient's turning side and improving the patient's sense of security and comfort when turning over. Furthermore, the cooperation between the drive component that can drive the corresponding side bed board 3-2 to turn over and the locking component used to lock the retractable bed board 3-2B makes the turning movement more stable and reliable.

[0042] catch Figure 7 and Figure 8 As shown, the aforementioned turning drive mechanism includes a guide rod 2-8 mounted on a mounting base 2-1 along the width direction of the bed. Two sets of sliders 2-7 are slidably mounted on the guide rod 2-8, and the two sets of sliders 2-7 can slide freely on the guide rod 2-8. The two sets of sliders 2-7 are respectively connected to a turning swing rod 2-4 through a connecting rod 2-3. The turning swing rod 2-4 is located below the corresponding side bed board 3-2, and the outer end of the turning swing rod 2-4 is hinged to the corresponding side outer bed board 3-2A. A space is provided between the two sets of sliders 2-7. A push block 2-10 is connected to a turning actuator 2-2 mounted on a mounting base 2-1. The turning actuator 2-2 drives the push block 2-10 to move left and right, thereby moving the corresponding slider 2-7. This, in turn, drives the corresponding turning swing arm 2-4 to flip via a connecting rod 2-3, forming the aforementioned driving component. The free end of the turning swing arm 2-4 is equipped with a limiting hook 2-4a. When the turning swing arm 2-4 flips upward, the limiting hook 2-4a hooks onto the corresponding telescopic bed board 3-2B, forming the aforementioned locking component. During the turning motion, the turning actuator 2-2 drives the push block 2-10 to one side. After the push block 2-10 contacts the slider 2-7 on one side, it drives the slider 2-7 to move together. The slider 2-7 slides on the guide rod 2-8, and via the connecting rod 2-3, it drives the corresponding turning swing arm 2-4 to swing upward. After the turning swing arm 2-4 contacts the side outer bed board 3-2A, it drives the entire side bed board 3-2 on that side to flip upward. At this time, the turning lever 2-4 flips upward so that its end limit hook 2-4a hooks onto the corresponding telescopic bed board 3-2B, thereby enabling the side bed board 3-2 to stably pull the middle bed board 3-1 to flip and move laterally. The above-mentioned turning drive mechanism has a simple and compact structure, is easy to manufacture and install, and the flipping action of the side bed board 3-2 and the locking action of the telescopic bed board 3-2B are completed synchronously, resulting in good stability of the turning movement. Figure 8The illustration shows a leftward turning motion, during which the middle bed board 3-1 flips from right to left and moves to the right; conversely, when turning to the right, the middle bed board 3-1 flips from left to right and moves to the left. Furthermore, springs 2-9 are fitted on both sides of the guide rod 2-8, acting on corresponding sliders 2-7 to induce a tendency for the two sets of sliders 2-7 to move towards the center. One end of the spring 2-9 abuts against the inner side of the mounting base 2-1, and the other end abuts against the corresponding slider 2-7. The springs 2-9 keep the side bed boards 3-2 horizontal. When the turning actuator 2-2 moves the push block 2-10 to one side, the corresponding slider 2-7 moves, compressing the corresponding spring 2-9. The push block 2-10 is also slidably mounted on the guide rod 2-8, allowing for stable sliding on the guide rod 2-8. The turning actuator 2-2 is preferably an electric push rod; the left and right turning motions can be completed by the extension and retraction of a set of electric push rods, making the turning motion more stable.

[0043] Reference Figure 6 and Figure 8 As shown, in this embodiment, a bed board telescopic limiting seat plate 2-6 is provided on the bed frame body 1 below the middle bed board 3-1. At least one side of the bed board telescopic limiting seat plate 2-6 is provided with a limiting groove extending along the width direction of the bed. The telescopic bed board 3-2B is provided with a bed board telescopic roller 2-5 that can cooperate with the limiting groove on the side near the middle bed board 3-1. When the side bed board 3-2 on one side flips, the telescopic bed board 3-2B on the other side bed board 3-2 slides along the width direction of the bed, and the bed board telescopic roller 2-5 on it slides into the limiting groove. Specifically, when one side bed board 3-2 is lifted by the corresponding connecting rod 2-3, the turning lever 2-4 on the other side flips slightly downward under the action of spring 2-9, causing the limiting hook 2-4a to disengage and lock in place. When the middle bed board 3-1 flips upward and moves to one side, it pulls the horizontally positioned telescopic bed board 3-2B out, allowing the telescopic roller 2-5 on it to just enter the limiting groove of the telescopic limiting seat plate 2-6, thus keeping the middle bed board 3-1 on that side stably in a horizontal state. By using the cooperation of the telescopic limiting seat plate 2-6 and the telescopic roller 2-5, the horizontally telescopic bed board 3-2B is limited, preventing the side bed board 3-2 on that side from flipping up and causing danger, further ensuring the stability and safety of the turning action.

[0044] This embodiment also discloses a turning and care bed. (Refer to...) Figures 1 to 3As shown, the turning and care bed includes a bed frame body 1, a bed board assembly 3, a backrest lifting mechanism 4, a leg flexion mechanism 5, and a bed lifting mechanism 6. The bed frame body 1 is mounted on the bed lifting mechanism 6, which drives the bed frame body 1 to move up and down to meet different height requirements. The bed board assembly 3 consists of a backrest board 3a, a hip board 3b, a thigh board 3c, and a calf board 3d arranged sequentially. The backrest board 3a, hip board 3b, thigh board 3c, and calf board 3d can all move relative to each other to achieve backrest lifting and leg flexion movements. The backrest board 3a, buttocks board 3b, thigh board 3c, and calf board 3d each include a middle board 3-1 and side boards 3-2 located on both sides of the middle board 3-1. The back lifting mechanism 4 is located on the main body of the bed frame 1 and below the backrest board 3a, and is used to flip the backrest board 3a upward to facilitate the patient to sit up. The leg flexion mechanism 5 is located on the main body of the bed frame 1 and below the thigh board 3c, and is used to lift the thigh board 3c and calf board 3d upward to facilitate the patient to flex their legs. The turning and care bed also includes the aforementioned turning mechanism 2, which is located below the buttocks bed board 3b. The side panels 3-2 of the back bed board 3a, buttocks bed board 3b, thigh bed board 3c, and calf bed board 3d each include an outer side panel 3-2A and a telescopic panel 3-2B. The outer side panel 3-2A of the buttocks bed board 3b is rotatably connected to the corresponding side of the bed frame body 1. The back bed board 3a, thigh bed board 3c, and calf bed board 3d... The telescopic bed boards 3-2B of bed board 3d are all hinged to the corresponding middle bed board 3-1. The outer side bed board 3-2A of the back bed board 3a is hinged to the outer side bed board 3-2A of the buttocks bed board 3b. The outer side bed board 3-2A of the thigh bed board 3c is hinged to the outer side bed board 3-2A of the buttocks bed board 3b. The outer side bed board 3-2A of the lower leg bed board 3d is hinged to the outer side bed board 3-2A of the thigh bed board 3c. In this way, during the rolling movement, the telescopic bed boards 3-2B corresponding to each part of the bed board can move synchronously, so that the bed board assembly 3 as a whole presents a complete rolling shape. The side panels 3-2 of the backrest board 3a, thigh board 3c, and calf board 3d are all driven by the side panel 3-2 of the buttocks board 3b to rotate together. The middle panel 3-1 of the backrest board 3a, thigh board 3c, and calf board 3d is driven by the middle panel 3-1 of the buttocks board 3b to rotate together. This turning care bed has ample space on the turning side, allowing the patient to move primarily in the middle of the bed, making turning safer and more comfortable.

[0045] In this embodiment, the aforementioned backrest lifting mechanism 4 includes a backrest lifting driver 4-1, a backrest lifting shaft 4-2, a backrest lifting arm 4-3, a backrest lifting support rod 4-4, and a backrest lifting roller 4-5. The backrest lifting shaft 4-2 is rotatably mounted on the bed frame body 1. The backrest lifting arm 4-3 and the backrest lifting support rod 4-4 are respectively fixed on the backrest lifting shaft 4-2. The backrest lifting roller 4-5 is mounted on the free end of the backrest lifting support rod 4-4. One end of the backrest lifting driver 4-1 is hinged to the bed frame body 1, and the driving end of the backrest lifting driver 4-1 is hinged to the free end of the backrest lifting arm 4-3. The backrest lifting driver 4-1 is preferably an electric push rod. Its telescopic movement drives the backrest lifting arm 4-3 to swing, thereby driving the backrest lifting shaft 4-2 to rotate. The rotation of the backrest lifting shaft 4-2 drives the backrest lifting support rod 4-4 to rotate. The backrest lifting roller 4-5 pushes against the backrest bed board 3a, thereby lifting the backrest bed board 3a upwards, realizing the backrest lifting function. The aforementioned leg-bending mechanism 5 includes a leg-bending actuator 5-1, a leg-bending pivot 5-2, a leg-bending swing arm 5-3, a leg-bending support rod 5-4, and a leg-bending roller 5-5. The leg-bending pivot 5-2 is rotatably mounted on the bed frame body 1. The leg-bending swing arm 5-3 and the leg-bending support rod 5-4 are respectively fixed on the backrest pivot 4-2. The leg-bending roller 5-5 is mounted on the free end of the leg-bending support rod 5-4. One end of the leg-bending actuator 5-1 is hinged to the bed frame body 1, and the driving end of the leg-bending actuator 5-1 is hinged to the free end of the leg-bending swing arm 5-3. The leg-bending actuator 5-1 is preferably an electric push rod, whose telescopic movement drives the leg-bending pivot 5-2 to rotate. The rotation of the leg-bending pivot 5-2 drives the leg-bending support rod 5-4 to rotate. The leg-bending roller 5-5 pushes against the thigh bed board 3c, thereby lifting the thigh bed board 3c and the lower leg bed board 3d hinged to it, thus realizing the leg-bending function.

[0046] This embodiment of a turning and nursing bed includes a bed lifting mechanism 6 comprising a bottom support frame 6-1, an upper support frame 6-2, a lifting drive mechanism 6-3, and casters 6-4. The two ends of the upper support frame 6-2 are connected to the bottom support frame 6-1 via the lifting drive mechanism 6-3. The bed frame body 1 is fixed to the upper support frame 6-2, and the casters 6-4 are located at the four corners of the bottom support frame 6-1. The lifting drive mechanism 6-3 can adopt an "x" or "y" shaped linkage structure, controlling the lifting and lowering movement of the bed by changing the included angle between the linkages. The drive part of the lifting drive mechanism 6-3 can also be an electric push rod, similar to the structure of existing electric nursing beds, and will not be described in detail here.

[0047] The present invention discloses a turning mechanism and a turning care bed. By designing the side bed panels as retractable bed panels, and cooperating with the turning drive mechanism to drive the side bed panels to flip, the middle bed panel can be turned over. During the turning process, the horizontal side bed panels can be extended accordingly, so that the middle bed panel can move as a whole to the opposite side of the turning, increasing the space on the patient's turning side and improving the patient's sense of security and comfort when turning over. Furthermore, the cooperation between the drive component that can drive the corresponding side bed panel to flip and the locking component for locking the retractable bed panel makes the turning movement more stable and reliable.

[0048] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A turning mechanism, comprising a mounting base (2-1) mounted on a bed frame body (1) and located below a bed board assembly (3), and a turning drive mechanism disposed on the mounting base (2-1), characterized in that: The bed board assembly (3) includes a middle bed board (3-1) and side bed boards (3-2) located on both sides of the middle bed board (3-1). The side bed board (3-2) includes an outer side bed board (3-2A) and a telescopic bed board (3-2B). The outer side of the outer side bed board (3-2A) is rotatably connected to the corresponding side of the bed frame body (1). The telescopic bed board (3-2B) and the outer side bed board (3-2A) slide together along the width of the bed and are rotatably connected to the corresponding side of the middle bed board (3-1). The turning drive mechanism has a drive member capable of driving the side bed board (3-2) on the corresponding side to turn over and a locking member for locking the telescopic bed board (3-2B). When the drive member drives the side bed board (3-2) on one side to turn over, the locking member locks the telescopic bed board (3-2B) of the turned side bed board (3-2) to restrict its sliding relative to the side outer bed board (3-2A), while the telescopic bed board (3-2B) of the other side bed board (3-2) is in an unlocked state where it can slide relative to the side outer bed board (3-2A).

2. The roll-over mechanism of claim 1, wherein: The turning-over drive mechanism includes a guide rod (2-8) mounted on a mounting base (2-1) along the width direction of the bed. Two sets of sliders (2-7) are slidably mounted on the guide rod (2-8). Each set of sliders (2-7) is connected to a turning-over swing rod (2-4) via a connecting rod (2-3). The turning-over swing rod (2-4) is located below the corresponding side bed board (3-2), and the outer end of the turning-over swing rod (2-4) is hinged to the corresponding side outer bed board (3-2A). A push block (2-10) is provided between the two sets of sliders (2-7). Block (2-10) is connected to a turning driver (2-2) provided on the mounting base (2-1). The turning driver (2-2) drives the pushing block (2-10) to move left and right to push the corresponding slider (2-7) to move. The turning swing arm (2-4) on the corresponding side is turned over through the connecting rod (2-3) to form the driving component described above. The free end of the turning swing arm (2-4) is provided with a limiting hook (2-4a). When the turning swing arm (2-4) is turned upward, the limiting hook (2-4a) hooks the corresponding telescopic bed board (3-2B) to form the locking component described above.

3. The turning mechanism according to claim 2, characterized in that: The guide rod (2-8) is also fitted with springs (2-9) on both sides, which act on the corresponding sliders (2-7) to make the two sets of sliders (2-7) tend to move towards the middle. The push block (2-10) is slidably disposed on the guide rod (2-8). The turning driver (2-2) is an electric push rod.

4. The turning mechanism according to claim 1, 2, or 3, characterized in that: The bed frame body (1) is provided with a bed board telescopic limiting seat plate (2-6) located below the middle bed board (3-1). At least one side of the bed board telescopic limiting seat plate (2-6) is provided with a limiting groove extending along the width direction of the bed. The telescopic bed board (3-2B) is provided with a bed board telescopic roller (2-5) that can cooperate with the limiting groove on the side of the middle bed board (3-1). When the side bed board (3-2) on one side flips, the telescopic bed board (3-2B) in the other side bed board (3-2) slides along the width direction of the bed, and the bed board telescopic roller (2-5) on it slides into the limiting groove.

5. A turning and nursing bed, comprising a bed frame body (1), a bed board assembly (3), a backrest lifting mechanism (4), a leg bending mechanism (5), and a bed lifting mechanism (6), wherein the bed frame body (1) is mounted on the bed lifting mechanism (6), the bed board assembly (3) is composed of a backrest board (3a), a hip board (3b), a thigh board (3c), and a calf board (3d) arranged sequentially, wherein the backrest board (3a), hip board (3b), thigh board (3c), and calf board (3d) each include a middle board (3-1) and side boards (3-2) located on both sides of the middle board (3-1), the backrest lifting mechanism (4) is disposed on the bed frame body (1) and located below the backrest board (3a), and the leg bending mechanism (5) is disposed on the bed frame body (1) and located below the thigh board (3c); characterized in that: It also includes a turning mechanism (2) as described in any one of claims 1 to 4, the turning mechanism (2) being located below the buttocks bed board (3b), the side bed boards (3-2) of the back bed board (3a), buttocks bed board (3b), thigh bed board (3c) and calf bed board (3d) each including an outer side bed board (3-2A) and a telescopic bed board (3-2B), the outer side bed board (3-2A) of the buttocks bed board (3b) being connected to the bed frame body (1) The corresponding sides of the backrest bed board (3a) are rotated and connected, the side outer bed board (3-2A) of the backrest bed board (3a) is hinged to the side outer bed board (3b) of the buttocks bed board (3b), the side outer bed board (3-2A) of the thigh bed board (3c) is hinged to the side outer bed board (3b) of the buttocks bed board (3b), and the side outer bed board (3-2A) of the calf bed board (3d) is hinged to the side outer bed board (3c) of the thigh bed board (3c).

6. The turning and nursing bed according to claim 5, characterized in that: The backrest lifting mechanism (4) includes a backrest lifting driver (4-1), a backrest lifting shaft (4-2), a backrest lifting arm (4-3), a backrest lifting support rod (4-4), and a backrest lifting roller (4-5). The backrest lifting shaft (4-2) is rotatably mounted on the bed frame body (1). The backrest lifting arm (4-3) and the backrest lifting support rod (4-4) are respectively fixed on the backrest lifting shaft (4-2). The backrest lifting roller (4-5) is mounted on the free end of the backrest lifting support rod (4-4). One end of the backrest lifting driver (4-1) is hinged to the bed frame body (1). The driving end of the backrest lifting driver (4-1) is hinged to the free end of the backrest lifting arm (4-3).

7. The turning and nursing bed according to claim 5, characterized in that: The leg-bending mechanism (5) includes a leg-bending driver (5-1), a leg-bending pivot (5-2), a leg-bending arm (5-3), a leg-bending support rod (5-4), and a leg-bending roller (5-5). The leg-bending pivot (5-2) is rotatably mounted on the bed frame body (1). The leg-bending arm (5-3) and the leg-bending support rod (5-4) are respectively fixed on the backrest pivot (4-2). The leg-bending roller (5-5) is mounted on the free end of the leg-bending support rod (5-4). One end of the leg-bending driver (5-1) is hinged to the bed frame body (1), and the driving end of the leg-bending driver (5-1) is hinged to the free end of the leg-bending arm (5-3).

8. The turning and nursing bed according to claim 5, characterized in that: The bed lifting mechanism (6) includes a bottom support frame (6-1), an upper support frame (6-2), a lifting drive mechanism (6-3), and casters (6-4). The two ends of the upper support frame (6-2) are connected to the bottom support frame (6-1) through the lifting drive mechanism (6-3). The bed frame body (1) is fixed on the upper support frame (6-2), and the casters (6-4) are located at the four corners of the bottom support frame (6-1).

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