A care bed for adjusting the position of a patient

Abstract

This invention relates to the technical field of nursing devices, and in particular to a nursing bed for adjusting patient position, comprising a bed frame and a bed body disposed on the bed frame. The bed body consists of two bottom beams located in the width direction of the bed frame and several bed board structures located between the two bottom beams. The several bed board structures are arranged along the length direction of the bed frame. The two ends of each bed board structure are respectively connected to the two bottom beams, and the bottom beams are capable of vertical displacement. By using several support plates to form the bed board structure, and the relative rotation of any two adjacent support plates, the position adjustment function can be realized at any position on the bed board structure, thereby improving the functionality of the nursing bed and facilitating patient use. At the same time, by using two rotating shafts and two support beams to lift the several support plates and position the position for position adjustment, the overall rigidity of the nursing bed and the comfort of the patient when lying flat or adjusting position are ensured.

Description

Technical Field

[0001] This invention relates to the technical field of nursing devices, and in particular to a nursing bed that adjusts the patient's position. Background Technology

[0002] Nursing beds are commonly used auxiliary equipment in medical institutions and home care. Their main function is to provide a safe and comfortable recuperation environment for patients who are bedridden for a long time or have difficulty moving, and to assist nursing staff in performing operations such as adjusting the patient's position, transferring patients, and providing daily care. Among these functions, adjusting the patient from a supine position to a lateral position is an important function of nursing beds. Reasonable position changes not only help prevent complications such as pressure sores and hypostatic pneumonia, but also improve the patient's respiratory circulation and comfort.

[0003] Traditional nursing beds typically employ a bed structure consisting of two independently flip-up bed boards to achieve this function. The patient lies flat on both boards, and when it is necessary to adjust the patient from a flat to a side-lying position, one bed board flips upwards. Through the contact between the bed board surface and the patient's body, a lateral thrust is generated, thus pushing the patient to the side. However, since the flipping axis and flipping position of the bed board are fixed in advance by the bed structure, the pushing force of the bed board is limited to the area near the junction of the two bed boards. That is, the body must straddle the two bed boards to obtain effective lateral support and thrust when the bed board flips. In other positions, the body position adjustment function cannot be achieved, thus its function is quite limited. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a nursing bed for adjusting the patient's position, the specific technical solution of which is as follows: The present invention provides a nursing bed for adjusting the patient's position, comprising a bed frame and a bed body disposed on the bed frame. The bed body is composed of two bottom beams located in the width direction of the bed frame and a plurality of bed board structures located between the two bottom beams. The plurality of bed board structures are arranged along the length direction of the bed frame. The two ends of each bed board structure are respectively connected to the two bottom beams, and the bottom beams are capable of vertical displacement. The bed board structure includes several trays arranged along the width of the bed frame. Adjacent trays can rotate relative to each other. Two support plates are arranged opposite each other at the bottom of the bed board structure. The support plates can move in the width of the bed frame via a movable body. Two rotating shafts are rotatably arranged between the two support plates. Each rotating shaft is provided with a support beam. The two support beams support a portion of the trays on the bed board structure, and the support beams move synchronously when the bottom beam moves.

[0005] Furthermore, along the arrangement direction of the trays, the trays are provided with a plurality of openings, and sliders are slidably disposed in the openings. The sliders are connected to the trays by an elastic body, and the sliders on adjacent trays are connected by a pull strap. The elastic body pushes the adjacent trays to abut against each other.

[0006] Furthermore, several of the trays on the bed board structure are arranged in an arc shape along the width direction of the bed frame, with the opening of the arc facing downwards, and the trays can move along the arc-shaped trajectory.

[0007] Furthermore, the bed board structure also includes a plurality of sliding columns installed at the bottom of each of the support plates and a plurality of bow-shaped frames located between the two bottom beams. The plurality of bow-shaped frames are arranged along the length of the bed frame, and the two ends of the bow-shaped frames are respectively connected to the two bottom beams. The bow-shaped frames are provided with sliding grooves that are consistent with the shape of the bow-shaped frames, and the sliding grooves are used in conjunction with the sliding columns.

[0008] Furthermore, the bow-shaped frame is composed of two opposing right-angled frames. The right-angled frame includes a vertical groove, a horizontal groove, and an arc groove located between the vertical groove and the horizontal groove. The vertical groove is connected to the corresponding bottom beam. The horizontal groove includes a first groove body connected to the arc groove, a second groove body rotatably connected to the side wall of the support plate, and a retainer located between the first groove body and the second groove body. The first groove body is provided with a notch area, and the second groove body is provided with two guide rods. The two guide rods cooperate with the notch area to guide the sliding column, and the first groove body and the second groove body can move relative to each other. The retainer is fixedly connected to the second groove body and slidably connected to the first groove body. Part of the second groove body, the guide rods, and part of the first groove body are all located within the retainer. The rotation axis of the second slotted body on the support plate is coaxial with the rotation axis of the rotating shaft.

[0009] Furthermore, the support beam is inclined, one end of the support beam is rotatably mounted on the corresponding right-angle frame, a guide rail is provided on the rotating shaft, a slide block is slidably mounted on the guide rail, and the other end of the support beam is rotatably connected to the slide block.

[0010] Furthermore, the support plate is T-shaped, and both the top of the support plate and the top of the support beam are rotatably provided with several rollers for lifting the support plate.

[0011] Furthermore, a locking structure is provided between the rotating shaft and the support beam. The locking structure includes locking teeth provided on the guide rail and the support beam. An electromagnetic propulsion structure is provided on the slide block. The output end of the electromagnetic propulsion structure is provided with a pressing tooth plate. The pressing tooth plate is used in conjunction with the locking teeth on the guide rail and the locking teeth on the support beam.

[0012] The beneficial effects of this invention are as follows: By using several support plates to form the bed board structure, and the ability for any two adjacent support plates to rotate relative to each other, the bed board structure can achieve position adjustment at any position, improving the functionality of the nursing bed and making it easier for patients to use. At the same time, by using two rotating shafts and two support beams to lift the support plates and position the patient, the overall rigidity of the nursing bed and the patient's comfort when lying flat or adjusting their position are ensured. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a nursing bed that allows for adjusting the patient's position. Figure 2 for Figure 1 Explosion structure diagram; Figure 3 for Figure 2 Schematic diagram of the middle bed plate structure; Figure 4 for Figure 3 A schematic diagram of the exploded structure; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the center support plate; Figure 6 for Figure 4 Schematic diagram of the middle support plate; Figure 7 for Figure 6 A structural diagram from another perspective; Figure 8 for Figure 4 Schematic diagram of the middle bow-shaped frame; Figure 9 for Figure 8 Exploded view of the structure of the central transverse groove; Figure label: 1. Bed frame; 2. Bed body; 3. Bottom beam; 4. Bed board structure; 5. Support plate; 6. Support plate; 7. Rotating shaft; 8. Support beam; 9. Through-hole; 10. Slider; 11. Elastic body; 12. Pull belt; 13. Sliding column; 14. Bow-shaped frame; 15. Power unit; 16. Vertical groove; 17. Arc groove; 18. Horizontal groove; 19. Slot body one; 20. Cage; 21. Slot body two; 22. Guide rod; 23. Guide rail; 24. Slide seat; 25. Electromagnetic propulsion structure; 26. Extrusion tooth plate; 27. Groove; 28. Moving body. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0018] like Figures 1 to 9 As shown, a nursing bed for adjusting the patient's position according to the present invention includes a bed frame 1 and a bed body 2 set on the bed frame 1. The bed body 2 is composed of two bottom beams 3 located in the width direction of the bed frame 1 and a plurality of bed board structures 4 located between the two bottom beams 3. The plurality of bed board structures 4 are arranged along the length direction of the bed frame 1. The two ends of the bed board structures 4 are respectively connected to the two bottom beams 3, and the bottom beams 3 can be displaced in the vertical direction. The bed board structure 4 includes several support plates 5 arranged along the width direction of the bed frame 1. Adjacent support plates 5 can rotate relative to each other. Two support plates 6 are arranged opposite each other at the bottom of the bed board structure 4. The support plates 6 can move in the width direction of the bed frame 1 via the movable body 28. Two rotating shafts 7 are rotatably arranged between the two support plates 6. Each rotating shaft 7 is equipped with a support beam 8. The two support beams 8 support a portion of the support plates 5 on the upper part of the bed board structure 4, and the support beams 8 move synchronously when the bottom beam 3 moves.

[0019] In this invention, a cylinder, motor, lead screw, or other pushing mechanism can be provided on the bed frame 1 to provide power for the movement of each bottom beam 3; the patient can lie on the bed body 2, the bed frame 1 provides support for the bed body 2, and auxiliary structures such as guardrails and handrails can be added to the side of the bed frame 1; the two bottom beams 3 on the bed body 2 are distributed left and right and placed on both sides of the width direction of the bed frame 1, and the two bottom beams 3 can provide support for several bed board structures 4 between them. The plane formed by several bed board structures 4 can be used for the patient to lie down, and the combination of several bed board structures 4 can facilitate assembly and maintenance.

[0020] Several trays 5 on the bed board structure 4 are arranged along the width direction of the bed frame 1, and the length direction of the trays 5 is parallel to the length direction of the bed frame 1. Since two adjacent trays 5 can rotate relative to each other, several trays 5 on one side of any tray 5 can tilt and rotate upward and push the patient to tilt, while the tray 5 and several trays 5 on the other side can remain stationary, realizing the function of adjusting the patient's position at any position.

[0021] Two support plates 6 at the bottom of the bed board structure 4 are arranged opposite each other along the length of the bed frame 1. Two pivots 7 are provided between the two support plates 6, and the pivots 7 can rotate on the support plates 6. The support beams 8 on each pivot 7 can support several support plates 5 in the corresponding area of ​​the bed board structure 4, thereby improving the stability of the bed board structure 4. The two pivots 7 can also be used to position the flipping position of the bed board structure 4. When one pivot 7 and its support beam 8 rotate, several support plates 5 and the corresponding bottom beam 3 in the corresponding area flip upward, i.e. Figure 6 As shown, the sliding trajectory of one end of the support beam 8 on the rotating shaft 7 is along the axis of the rotating shaft 7. When the rotating shaft 7 rotates, it can drive the support beam 8 to rotate synchronously. The support beam 8 is rotatably connected to the corresponding right-angle frame, and its axis of rotation is vertical. Figure 6As shown, the support beam 8 can push the right-angle frame to flip upward synchronously, thereby driving the several trays 5 and bottom beam 3 in several corresponding areas to flip upward. The trays 5 in this area push the patient to tilt, realizing the patient's body position adjustment function. At the same time, the trays 5 in this area can still be supported and lifted by the support beam 8, thereby improving the structural stability. The other rotating shaft 7 and its support beam 8 are stationary, and the trays 5 corresponding to the support beam 8 are stationary. When the two support plates 6 and the two rotating shafts 7 move, the two support beams 8 move synchronously, and the corresponding areas of the two support beams 8 on the bed board structure 4 change, thereby adjusting the flipping position.

[0022] To improve motion synchronization, the bottom beam 3 and the corresponding support beam 8 on the rotating shaft 7 can move synchronously. That is, with the two rotating shafts 7 as the dividing line, several support plates 5, bottom beam 3 and corresponding support beam 8 on one side can be flipped and the patient's position adjusted, while several support plates 5, bottom beam 3 and corresponding support beam 8 on the other side remain stationary. Since each bottom beam 3 is equipped with a pushing mechanism, several support plates 5 on the left side of the two rotating shafts 7 or several support plates 5 on the right side of the two rotating shafts 7 can be flipped, which facilitates bidirectional adjustment of the patient's position.

[0023] like Figure 2 As shown, the movable body 28 is slidably mounted on the bed frame 1 along the width direction of the bed frame 1, and the bed frame 1 is equipped with a motor, lead screw and other structures for driving the movable body 28 to move. When the movable body 28 moves, it can drive the support plate 6 to move synchronously. The support plate 6 adjusts the position of the rotating shaft 7 and the support beam 8 at the bottom of the bed board structure 4, thereby adjusting the position of the patient's body position.

[0024] By using several support plates 5 to form the bed board structure 4, and the relative rotation of any two adjacent support plates 5 at any position, the body position adjustment function can be realized at any position on the bed board structure 4, improving the functionality of the nursing bed and making it easier for patients to use. At the same time, by using two rotating shafts 7 and two supporting beams 8 to lift the several support plates 5 and to position the body position adjustment, the overall rigidity of the nursing bed and the comfort of the patient when lying flat or adjusting their body position are ensured.

[0025] Furthermore, along the arrangement direction of the several trays 5, several openings 9 are provided on the trays 5, and sliders 10 are slidably arranged in the openings 9. The sliders 10 are connected to the trays 5 through elastic bodies 11, and the sliders 10 on adjacent trays 5 are connected by a pull strap 12. The elastic body 11 pushes the adjacent trays 5 to abut against each other.

[0026] In its natural state, adjacent support plates 5 abut against each other, slider 10 is located in the middle of opening 9, and elastic body 11 can be as follows: Figure 5 The spring or commonly used spring shown can be used as long as it can provide a restoring force to the slider 10; details are not provided here. Figure 5As shown, the two protruding positions inside the opening 9 are guide ridges, which can guide the lateral sliding of the slider 10. Of course, guide ridges can be omitted as long as the slider 10 can slide laterally within the opening 9. The pull strap 12 can limit the position of the slider 10 and the elastic body 11, so that the slider 10 cannot move freely on the support plate 5. When several support plates 5 are horizontal, the two adjacent support plates 5 abut against each other. At this time, several support plates 5 form a complete plane, and there will be no gap between the two adjacent support plates 5. This improves the comfort of the patient lying down and avoids the gap between the two adjacent support plates 5 from pinching the patient if the two adjacent support plates 5 move relative to each other.

[0027] When the patient's position is adjusted, the two adjacent trays 5 rotate relative to each other. The pull strap 12 pulls the slider 10 to slide within the opening 9. The elastic body 11 undergoes elastic deformation, and the two trays 5 remain in contact. Thus, on the side of the tray 5 that contacts the user, no gap is generated between the two trays 5, whether in a horizontal state or in a relative rotating state.

[0028] Since several trays 5 are connected by several pull straps 12, when one slider 10 moves, it will pull the sliders 10 in other trays 5 to move synchronously.

[0029] Furthermore, several trays 5 on the bed board structure 4 are arranged in an arc shape along the width direction of the bed frame 1, with the opening of the arc facing downwards, and the trays 5 can move along the arc-shaped trajectory.

[0030] In the bed board structure 4, the left and right side panels 5 are arranged vertically, and the middle panels 5 are arranged horizontally. The middle panels 5 can be used to lift the patient. When the panels 5 move along the arc-shaped trajectory, the middle panels 5 can transport the patient to the left or to the right, thereby facilitating the adjustment of the patient's position.

[0031] Furthermore, the bed board structure 4 also includes several sliding columns 13 installed at the bottom of each support plate 5 and several bow-shaped frames 14 located between the two bottom beams 3. The several bow-shaped frames 14 are arranged along the length of the bed frame 1, and the two ends of the bow-shaped frames 14 are respectively connected to the two bottom beams 3. The bow-shaped frames 14 are provided with sliding grooves that are consistent with the shape of the bow-shaped frames 14. The sliding grooves are used in conjunction with the sliding columns 13.

[0032] The sliding columns 13 on the tray 5 are used in conjunction with the sliding grooves on the corresponding bow-shaped frames 14. The bow-shaped frames 14 can support and guide the tray 5, so that the tray 5 can reciprocate along the bow-shaped trajectory. The arrangement of the sliding columns 13 and the bow-shaped frames 14 can provide multiple support points for the tray 5, effectively improving the overall strength of the bed board structure 4.

[0033] Since the pallets 5 are connected by several straps 12, a power unit 15 consisting of a motor, lead screw and other structures is provided on both bottom beams 3. The power unit 15 can provide power for the pallets 5 to move along the bow-shaped trajectory.

[0034] Furthermore, the bow-shaped frame 14 is composed of two opposing right-angled frames. Each right-angled frame includes a vertical groove 16, a horizontal groove 18, and an arc-shaped groove 17 located between the vertical groove 16 and the horizontal groove 18, i.e. Figure 8 As shown, the bow-shaped frame 14 is a bow-shaped structure composed of two vertical grooves 16, two horizontal grooves 18, and two arc grooves 17. The vertical grooves 16 are connected to the corresponding bottom beam 3. The horizontal grooves 18 include a first groove body 19 connected to the arc grooves 17, a second groove body 21 rotatably connected to the side wall of the support plate 6, and a retainer 20 located between the first groove body 19 and the second groove body 21. The first groove body 19 is provided with a notch area, and the second groove body 21 is provided with two guide rods 22. The two guide rods 22 cooperate with the notch area to guide the sliding column 13, and the first groove body 19 and the second groove body 21 can move relative to each other. The retainer 20 is fixedly connected to the second groove body 21 and slidably connected to the first groove body 19. Part of the second groove body 21, the guide rods 22, and part of the first groove body 19 are all located inside the retainer 20. The rotation axis of the second groove body 21 on the support plate 6 is set coaxially with the rotation axis of the rotating shaft 7.

[0035] Two right-angle frames are set opposite each other on the two bottom beams 3. The ends of the two right-angle frames are close to each other and rotate on the corresponding support plates 6. This makes it easy for the sliding column 13 on the tray 5 to be transferred from one right-angle frame to the other. Since the two rotating shafts 7 can move along the width of the bed frame 1, the two right-angle frames on both sides of the support plate 6 need to have telescopic function so as to provide guidance and support for several trays 5 in horizontal or inclined states.

[0036] Along the axis of the sliding column 13, the notch area on the first slot body 19 engages with a local area of ​​the outer wall of the sliding column 13, and the guide rod 22 engages with another local area of ​​the outer wall of the sliding column 13. The guide rod 22 overlaps with at least a part of the notch area. In this way, when the second slot body 21 and the first slot body 19 move relative to each other, the first slot body 19, the guide rod 22, and the second slot body 21 can always guide the sliding column 13. The retainer 20 can be used to strengthen the connection between the first slot body 19 and the second slot body 21.

[0037] When the pallet 5 moves along the arc-shaped trajectory, the sliding column 13 on the pallet 5 can move between the vertical groove 16, the arc groove 17 and the horizontal groove 18. When it is necessary to adjust the patient's position, the moving body 28 moves and drives the rotating shaft 7 to move to the specified position. At this time, the rotating shaft 7 pushes the second groove body 21 and the retainer 20 to move relative to the first groove body 19 through the support plate 6. The overall length of the horizontal groove 18 changes. Since the pallet 5 does not move along the arc-shaped trajectory at this time, the pallet 5 moves relative to the rotating shaft 7 and the support beam 8. The sliding column 13 on the pallet 5 will slide in the corresponding second groove body 21. The bottom beam 3 and the support beam 8 move upward synchronously and drive several pallets 5 in the corresponding area to flip upward. At this time, several pallets 5 can push the patient to tilt.

[0038] Using the above structure, the horizontal movement function of the tray 5 for the patient and the tilting function of the tray 5 for the patient can be integrated, thereby improving the overall functionality of the nursing bed.

[0039] In practical use, the number of bow-shaped frames 14 can be set to two and correspond to the two support plates 6 respectively.

[0040] Furthermore, the support beam 8 is inclined, one end of the support beam 8 is rotatably mounted on the corresponding right-angle frame, the rotating shaft 7 is provided with a guide rail 23, and a slide block 24 is slidably mounted on the guide rail 23, and the other end of the support beam 8 is rotatably connected to the slide block 24.

[0041] The guide rail 23 and the rotating shaft 7 are parallel to each other. The two ends of the support beam 8 can be supported by the right-angle bracket, the guide rail 23 and the slide 24. When the support plate 6 and the rotating shaft 7 move, the rotating shaft 7 can push the slide 24 to slide on the guide rail 23, and the tilt angle of the support beam 8 changes, thereby reducing or increasing the area of ​​several support plates 5 covered by the support beam 8 and changing the position of body position adjustment.

[0042] Using the above structure, the overall area covered by the two support beams 8 can be kept fixed, and the position adjustment is limited to several horizontal support plates 5 in the middle of the bed board structure 4.

[0043] Furthermore, the support plate 6 is T-shaped, and several rollers for lifting the support plate 5 are rotatably provided on the top of the support plate 6 and the top of the support beam 8.

[0044] When the pallet 5 moves relative to the support plate 6 and the support beam 8, the rollers can reduce the friction between them, reduce noise, and improve the overall structural stability. Along the width of the bed frame 1, the area covered by the support beam 8 and the area covered by the support plate 6 can partially overlap, which makes it easier for the pallet 5 to move between the two support beams 8.

[0045] Furthermore, a locking structure is provided between the rotating shaft 7 and the support beam 8. The locking structure includes locking teeth provided on the guide rail 23 and the support beam 8. An electromagnetic propulsion structure 25 is provided on the slide 24. An extrusion tooth plate 26 is provided at the output end of the electromagnetic propulsion structure 25. The extrusion tooth plate 26 is used in conjunction with the locking teeth on the guide rail 23 and the locking teeth on the support beam 8.

[0046] like Figure 7 As shown, the teeth on the support beam 8 are distributed in an arc shape, and the axis of the arc coincides with the rotation axis of the support beam 8 on the slide 24. The teeth on the guide rail 23 are arranged along the length of the guide rail 23. The pressing tooth plate 26 has two tooth areas, which correspond to the teeth on the support beam 8 and the teeth on the guide rail 23, respectively.

[0047] After the position of the rotating shaft 7 is adjusted, the electromagnetic propulsion structure 25 can push the extrusion tooth plate 26 to move and make the extrusion tooth plate 26 engage with the locking teeth on the support beam 8 and the locking teeth on the guide rail 23, thereby locking the support beam 8, the slide 24 and the guide rail 23 together. The bow frame 14 and the bottom beam 3 are also locked together with the support beam 8. This makes it easy for the structure on the flip side of the rotating shaft 7 to remain relatively stationary and move smoothly when the bottom beam 3 moves. This avoids the situation where the slide 24, the guide rail 23 and the support beam 8 are not locked, and the movement of the bottom beam 3 would cause the support beam 8 and the slide 24 to rotate relative to each other, and the slide 24 and the guide rail 23 to slide relative to each other, affecting the stability of the overall structure.

[0048] When the bottom beam 3 is placed inside the bed frame 1, a groove 27 can be made at the bottom of the bottom beam 3 to position and limit its movement. The bed frame 1 is provided with a protrusion that works in conjunction with the groove 27.

[0049] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A care bed for adjusting the position of a patient, characterized in that, The bed includes a bed frame and a bed body mounted on the bed frame. The bed body consists of two bottom beams located in the width direction of the bed frame and a plurality of bed board structures located between the two bottom beams. The plurality of bed board structures are arranged along the length direction of the bed frame. The two ends of each bed board structure are respectively connected to the two bottom beams, and the bottom beams are capable of vertical displacement. The bed board structure includes a plurality of trays arranged along the width of the bed frame. Adjacent trays can rotate relative to each other. Two support plates are arranged opposite each other at the bottom of the bed board structure. The support plates can move in the width of the bed frame via a movable body. Two pivots are rotatably arranged between the two support plates. Each pivot is provided with a support beam. The two support beams support a portion of the trays on the bed board structure. When the bottom beam moves, the support beams move synchronously. Along the arrangement direction of the trays, the trays are provided with a plurality of openings, and sliders are slidably disposed in the openings. The sliders are connected to the trays by an elastic body, and the sliders on adjacent trays are connected by a pull strap. The elastic body pushes the adjacent trays to abut against each other. The plurality of trays on the bed board structure are arranged in an arc shape along the width direction of the bed frame, with the opening of the arc facing downwards, and the trays can move along the arc trajectory; The bed board structure also includes a number of sliding columns installed at the bottom of each of the support plates and a number of bow-shaped frames located between the two bottom beams. The bow-shaped frames are arranged along the length of the bed frame, and the two ends of the bow-shaped frames are respectively connected to the two bottom beams. The bow-shaped frames are provided with sliding grooves that are consistent with the shape of the bow-shaped frames. The sliding grooves are used in conjunction with the sliding columns. The bow-shaped frame consists of two opposing right-angled frames. Each right-angled frame includes a vertical groove, a horizontal groove, and an arc groove located between the vertical and horizontal grooves. The vertical groove is connected to the corresponding bottom beam. The horizontal groove includes a first groove body connected to the arc groove, a second groove body rotatably connected to the side wall of the support plate, and a retainer located between the first and second groove bodies. The first groove body has a notch area, and the second groove body has two guide rods. The two guide rods cooperate with the notch area to guide the sliding column, and the first and second groove bodies can move relative to each other. The retainer is fixedly connected to the second groove body and slidably connected to the first groove body. Part of the second groove body, the guide rods, and part of the first groove body are all located within the retainer. The rotation axis of the second slotted body on the support plate is coaxial with the rotation axis of the rotating shaft; The support beam is inclined, one end of the support beam is rotatably mounted on the corresponding right-angle frame, a guide rail is provided on the rotating shaft, a slide block is slidably mounted on the guide rail, and the other end of the support beam is rotatably connected to the slide block.

2. A care bed for adjusting the position of a patient according to claim 1, characterized in that The support plate is T-shaped, and several rollers for lifting the support plate are rotatably provided on the top of the support plate and the top of the support beam.

3. A care bed for adjusting the position of a patient according to claim 2, characterized in that A locking structure is provided between the rotating shaft and the support beam. The locking structure includes locking teeth provided on the guide rail and the support beam. An electromagnetic propulsion structure is provided on the slide block. An extrusion tooth plate is provided at the output end of the electromagnetic propulsion structure. The extrusion tooth plate is used in conjunction with the locking teeth on the guide rail and the locking teeth on the support beam.

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