A care bed which can be translated laterally to the side of the bed in response to a turning movement

Abstract

The application discloses a nursing bed capable of being expanded to the side of the bed along with a turning-over action, and belongs to the field of nursing beds. The nursing bed capable of being expanded to the side of the bed along with a turning-over action comprises a bed frame, a mattress supporting assembly, a turning-over mechanism and a bed side expansion mechanism arranged on the left and right sides of the bed frame. The bed side expansion mechanism adopts a hinge type translation structure and is linked with the turning-over mechanism through a linkage mechanism. When the turning-over mechanism drives the mattress supporting assembly to move to one side, the horizontal telescopic assembly drives the movable connecting rod on the same side to be expanded outward, and when the turning-over mechanism drives the mattress supporting assembly to move to the other side, the movable connecting rod on the opposite side remains in a folded state on the side of the bed frame. In this way, the nursing bed can be expanded to the side of the bed, the space on the turning-over side of the nursing bed is increased, the safety and comfort of the patient during turning-over are improved, and the patient is prevented from being hurt again during turning-over. In addition, the bed side expansion mechanism and the linkage mechanism are simple and compact in structure, stable and reliable in movement, and easy to install and arrange on the nursing bed.

Description

Technical Field

[0001] This invention relates to a nursing bed, and more specifically, to a nursing bed that can be extended laterally with the action of turning over. Background Technology

[0002] Turning beds can assist patients in turning over, prevent bedsores caused by prolonged bed rest, and reduce the workload of caregivers.

[0003] Common turning beds utilize a rotating bed surface to facilitate patient turning. Their turning mechanisms typically employ a rotational motion of one-half or one-third of the bed surface to move the patient to the side. A one-half bed surface design divides the bed into left and right sections, using one side of the bed to rotate upwards to propel the patient to the other side. A one-third bed surface design divides the bed into three sections (left, center, and right), generally using a rotating motion of both sides of the bed surface for turning.

[0004] However, in practical applications, it has been found that regardless of the type of bed flipping structure, during the patient's turning process, the patient is always pushed to one side of the bed instead of being in the middle of the bed. This results in very little space on the side of the bed where the patient turns over, causing the patient to feel pressured and fall off the bed, reducing the patient's comfort when turning over, and even causing crushing injuries to the patient when hitting the guardrail, bringing unpredictable risks to daily nursing work. 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 shortcomings of existing turning care beds that cannot expand the side space in conjunction with turning movements. It provides a care bed that can expand laterally with turning movements. The technical solution of this invention involves a hinged translational structure on the side of the bed frame, linked to the turning mechanism via a linkage mechanism. When the turning mechanism moves the mattress support assembly to one side, a horizontal telescopic component moves the movable connecting rod on the same side outwards. When the turning mechanism moves the mattress support assembly to the other side, the movable connecting rod on the opposite side remains folded on the side of the bed frame. This allows the care bed to extend into the space on the turning side, increasing the space there, improving the patient's safety and comfort during turning, and preventing secondary injuries during the process. Furthermore, the side expansion mechanism and linkage mechanism are simple and compact in structure, stable and reliable in movement, and easy to install and arrange on the care bed.

[0007] 2. Technical Solution

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

[0009] This invention discloses a nursing bed that can be laterally extended to the side of the bed during a turning motion. It includes a bed frame, a mattress support assembly, and a turning mechanism. The mattress support assembly is located on the upper part of the bed frame, and the turning mechanism is located on the bed frame and below the mattress support assembly, used to drive the mattress support assembly to turn laterally in the left-right direction of the nursing bed. It also includes bed side extension mechanisms located on the left and right sides of the bed frame. The turning mechanism is connected to the bed side extension mechanisms on the left and right sides via a linkage mechanism.

[0010] The bed-side extension mechanism includes a fixed connecting rod, a movable connecting rod, and folding hinges. The fixed connecting rod is horizontally fixed to the side of the bed frame. The movable connecting rod is connected to the fixed connecting rod through several spaced folding hinges, allowing the movable connecting rod to slide outward or fold inward. A guardrail is provided on the movable connecting rod.

[0011] The linkage mechanism includes a linkage swing arm, a linkage rod, and a horizontal telescopic assembly. The linkage swing arm is connected to the turning mechanism and swings to the corresponding side as the turning mechanism turns. Two linkage rods are hinged to the free end of the linkage swing arm. The two linkage rods are respectively connected to the aforementioned movable connecting rods through the horizontal telescopic assembly. When the turning mechanism drives the mattress support assembly to turn to one side, the movable connecting rod on the same side is driven to slide outward through the horizontal telescopic assembly. After the folding hinge between the movable connecting rod and the fixed connecting rod is unfolded, it serves as a support for the extended space on the side of the bed. When the turning mechanism drives the mattress support assembly to turn to the other side, the movable connecting rod on the opposite side remains folded on the side of the bed frame.

[0012] Furthermore, the turning mechanism includes a turning electric push rod, a turning swing arm, a turning support rod, a push-top connecting rod, a bracket hinge seat, and a turning shaft. The turning shaft is rotatably mounted in the middle of the bed frame in the front-to-back direction. One end of the turning electric push rod is hinged to the bed frame, and the other end is hinged to the turning swing arm fixed on the turning shaft. There is one turning support rod on each side of the turning shaft, and the ends of the two turning support rods near the middle of the nursing bed are rotatably connected relative to the bed frame. The other ends of the turning support rods are respectively hinged to the corresponding side of the mattress support assembly through the push-top connecting rod. An eccentric push plate is also fixed on the turning shaft, located below the turning support rod. When the turning electric push rod drives the turning shaft to rotate to one side, the eccentric push plate sways and pushes the turning support rod on the corresponding side to move upward, driving the mattress support assembly to turn to the opposite side through the corresponding push-top connecting rod. The linkage swing arm is fixed on the turning shaft and swings left and right with the rotation of the turning shaft.

[0013] Furthermore, the mattress support assembly includes a central support frame and side support frames hinged to the left and right sides of the central support frame. A connecting plate is hinged to the outer end of the side support frame, and a slider is provided on the connecting plate. The slider is slidably mounted on a guide rod, which is horizontally installed on the bed frame along the width direction of the nursing bed. A turning and resetting spring is also sleeved on the guide rod, which is compressed against the slider on the corresponding side.

[0014] Furthermore, the outer end of the side support frame is also provided with a turning roller that can roll laterally on the bed frame.

[0015] Furthermore, the bed frame is also equipped with a backrest lifting mechanism, which includes a backrest flipping frame, a backrest pivot, and a backrest electric push rod. The backrest flipping frame is fixed on the backrest pivot, and both ends of the backrest pivot are rotatably mounted on the bed frame. One end of the backrest electric push rod is hinged to the bed frame, and the other end is hinged to the backrest swing arm on the backrest pivot. The mattress support assembly also has a back support and a hip support hinged together. The backrest flipping frame is located below the back support, and the lower side of the back support also has a backrest support roller that can roll relative to the backrest flipping frame.

[0016] Furthermore, it also includes a leg-bending mechanism, which comprises a first leg-bending bracket, a second leg-bending bracket, a leg-bending connecting rod, and a leg-bending electric push rod. One end of the first leg-bending bracket is hinged to the rear end of the bed frame, and the other end of the first leg-bending bracket is hinged to the second leg-bending bracket. One end of the leg-bending connecting rod is hinged to the rear end of the bed frame, and the other end is hinged to the lower part of the second leg-bending bracket. The first leg-bending bracket, the second leg-bending bracket, and the leg-bending connecting rod form a parallel four-bar linkage at the rear end of the bed frame. One end of the leg-bending electric push rod is hinged to the lower part of the bed frame, and the other end is hinged to the leg-bending connecting rod. The leg-bending electric push rod drives the second leg-bending bracket to move horizontally up and down.

[0017] Furthermore, the lower part of the bed frame is provided with a bottom frame, the bottom frame is provided with casters, and the front and rear ends of the bed frame are respectively provided with bed end panels.

[0018] Furthermore, the horizontal telescopic assembly adopts a swing arm slider mechanism, including a swing arm shaft, a connecting rod, a horizontal push-pull rod, and a folding return spring. Two swing arm shafts are horizontally arranged on both sides of the bed frame along the front-back direction of the nursing bed. The swing arm shaft has a lower swing arm and an upper swing arm. The connecting rod is provided with a waist-shaped hole. The connecting rod slides with the lower swing arm on the corresponding side through the waist-shaped hole, and is used to pull the lower swing arm to swing with the turning action of the turning mechanism. The upper swing arm is connected to the horizontal push-pull rod on the corresponding side through a connecting rod. The horizontal push-pull rod is laterally slidably installed on the side of the bed frame and connected to the movable connecting rod on the corresponding side. The folding return spring is set between the horizontal push-pull rod and the bed frame, so that the movable connecting rod maintains the tendency to fold inward.

[0019] Furthermore, the horizontal telescopic assembly adopts a scissor-type telescopic mechanism, including a hinge seat, a horizontal guide rod, a diagonal tie rod, a scissor unit, and a side frame. A linkage bracket is provided at the bottom of the bed frame, and mounting frames are provided on both sides of the linkage bracket. The side frames are installed on the lower part of the corresponding movable connecting rod, and the side frames on both sides are respectively connected to the mounting frames on the corresponding sides via the scissor unit. The horizontal guide rod is fixed to the linkage bracket at the bottom of the bed frame along the width direction of the nursing bed, and the hinge seat is slidably mounted on the horizontal guide rod. The linkage rods are respectively hinged to the hinge seats on the corresponding sides. The linkage rods and the linkage swing arms are slidably engaged through the waist-shaped holes provided on the linkage rods. One end of the diagonal tie rod is hinged to the hinge seat, and the other end is hinged to the sliding component of the scissor unit. When the turning mechanism turns to one side, the linkage swing arm pulls the hinge seat to move through the linkage rod on the corresponding side, and drives the scissor unit to expand outward through the diagonal tie rod. At the same time, the linkage swing arm pushes the hinge seat on the opposite side to move through another linkage rod, and drives the scissor unit to retract inward through the diagonal tie rod.

[0020] Furthermore, the scissor lift unit includes two sets of scissor lift links with intermediate hinges. Both the linkage bracket and the side frame are provided with bed-side guide rods. Both ends of the scissor lift links are mounted on the bed-side guide rods on the corresponding sides via sliding seats. There are two diagonal tie rods. One end of each diagonal tie rod is hinged to the corresponding hinge seat, and the other end is hinged to the sliding seat of the corresponding scissor lift link.

[0021] 3. Beneficial effects

[0022] Compared with existing known technologies, the technical solution provided by this invention has the following significant advantages:

[0023] (1) A nursing bed of the present invention can be extended to the side of the bed with the turning action, which includes a bed frame, a mattress support assembly, a turning mechanism and a bed side extension mechanism arranged on the left and right sides of the bed frame. The bed side extension mechanism adopts a hinged translation structure and is linked with the turning mechanism through a linkage mechanism. When the turning mechanism drives the mattress support assembly to turn to one side, the movable connecting rod on the same side is driven to move outward through the horizontal telescopic assembly. When the turning mechanism drives the mattress support assembly to turn to the other side, the movable connecting rod on the opposite side remains folded on the side of the bed frame. This can realize the extension of the nursing bed to the turning side space, increase the space on the turning side of the nursing bed, improve the patient's sense of security and comfort when turning over, and avoid secondary injury to the patient during the turning process. In addition, the bed side extension mechanism and the linkage mechanism have a simple and compact structure, stable and reliable movement, and are easy to install and arrange on the nursing bed.

[0024] (2) A nursing bed of the present invention can be extended to the side of the bed with the turning action. Its turning mechanism includes a turning electric push rod, a turning swing arm, a turning support rod, a push rod, a bracket hinge seat and a turning shaft. The left and right turning of the mattress support component can be stably controlled by a single turning electric push rod. The structure is simple and compact, occupies little space, the turning movement is stable and reliable, and the turning comfort of the middle bed board is better.

[0025] (3) A nursing bed of the present invention can be extended to the side of the bed with the turning movement. Its mattress support assembly includes a middle support frame and side support frames hinged to the left and right sides of the middle support frame. A connecting plate is hinged to the outer end of the side support frame. A slider is provided on the connecting plate. The slider is slidably mounted on the guide rod. The guide rod is horizontally mounted on the bed frame along the width direction of the nursing bed. A turning return spring is also sleeved on the guide rod and compressed against the slider on the corresponding side. With this design, the outer end of the side support frame can slide horizontally relative to the guide rod during the turning movement, which ensures the overall stability of the mattress support assembly and improves the safety of use.

[0026] (4) A nursing bed of the present invention can be extended to the side of the bed with the turning action, wherein the outer end of the side support frame is also provided with a turning roller that can roll laterally on the bed frame, which can reduce the friction and noise between the side support frame and the bed frame during the turning action.

[0027] (5) A nursing bed of the present invention can be extended to the side of the bed with the turning action. The bed frame is also provided with a back lifting mechanism. The back lifting mechanism includes a back lifting flip frame, a back lifting pivot and a back lifting electric push rod. The back lifting flip frame is located below the back support. The lower side of the back support also has a back lifting support roller that can roll relative to the back lifting flip frame. The back lifting action is stable and reliable, and the friction and noise generated by the back lifting action are small.

[0028] (6) A nursing bed of the present invention that can be extended to the side of the bed with the turning action, further includes a leg bending mechanism. The leg bending mechanism includes a first leg bending support, a second leg bending support, a leg bending link and a leg bending electric push rod. One end of the first leg bending support is hinged to the rear end of the bed frame, and the other end of the first leg bending support is hinged to the second leg bending support. One end of the leg bending link is hinged to the rear end of the bed frame and the other end is hinged to the lower part of the second leg bending support. The first leg bending support, the second leg bending support and the leg bending link form a parallel four-bar linkage at the rear end of the bed frame. One end of the leg bending electric push rod is hinged to the lower part of the bed frame and the other end is hinged to the leg bending link. The second leg bending support is moved horizontally up and down by the leg bending electric push rod. The leg bending mechanism has a large range of motion, which can make the patient's legs lift up, bend down or lie flat, and the second leg bending support always remains horizontal, which can make the patient sit up and facilitate washing the patient's feet, etc.

[0029] (7) The present invention provides a nursing bed that can be extended to the side of the bed with the turning action. The horizontal telescopic component of its linkage mechanism adopts a swing rod slider mechanism or a scissor telescopic mechanism. The structure is simple and ingenious, and easy to install on the nursing bed. Furthermore, by utilizing the waist-shaped groove on the linkage rod, it can cooperate with the turning mechanism to provide a stable coordination between the turning action and the bed-side extension action, making the linkage action of the two more stable. The structure is simple and compact, and the transmission is stable and reliable. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a nursing bed that can be shifted and extended to the side of the bed with the turning over action, according to Embodiment 1 of the present invention.

[0031] Figure 2 This is a front view schematic diagram of a nursing bed that can be shifted and extended to the side of the bed with the turning motion according to Embodiment 1 of the present invention;

[0032] Figure 3 This is a schematic diagram of the bottom structure of a nursing bed that can be moved and expanded to the side of the bed with the turning over action according to Embodiment 1 of the present invention;

[0033] Figure 4 This is a schematic diagram of the linkage structure between the turning mechanism and the bed-side extension mechanism in Embodiment 1 of the present invention;

[0034] Figure 5 This is a three-dimensional schematic diagram of the backrest position of the nursing bed in Embodiment 1 of the present invention;

[0035] Figure 6 This is a schematic diagram of a nursing bed of the present invention that can be moved and extended to the side of the bed with the movement of turning over;

[0036] Figure 7 This is a schematic diagram of the downward flexed leg position of a nursing bed that can be moved and extended to the side of the bed with the turning over action according to the present invention;

[0037] Figure 8 This is a three-dimensional structural diagram of a nursing bed that can be shifted and extended to the side of the bed with the turning over action, according to Embodiment 2 of the present invention.

[0038] Figure 9 This is a front view schematic diagram of a nursing bed that can be shifted and extended to the side of the bed with the turning motion, according to Embodiment 2 of the present invention;

[0039] Figure 10 This is a schematic diagram of the bottom structure of a nursing bed that can be moved and expanded to the side of the bed with the turning over action, according to Embodiment 2 of the present invention;

[0040] Figure 11 This is a schematic diagram of the linkage structure between the turning mechanism and the bedside extension mechanism in Embodiment 2 of the present invention.

[0041] Explanation of the labels in the diagram:

[0042] 1. Bed frame; 1-1. Base frame; 1-2. Casters; 1-3. Linkage bracket;

[0043] 2. Mattress support components; 2-1. Central support frame; 2-1a. Back center support; 2-1b. Hip center support; 2-2. Side support frame; 2-2a. Back side support; 2-2b. Hip side support; 2-3. Back support roller; 2-4. Turning roller;

[0044] 3. Tilting Mechanism; 3-1. Tilting Electric Push Rod; 3-2. Tilting Swing Arm; 3-3. Tilting Support Rod; 3-4. Push-up Connecting Rod; 3-5. Support Hinge Seat; 3-6. Guide Rod; 3-7. Slider; 3-8. Connecting Plate; 3-9. Tilting Return Spring; 3-10. Tilting Rotary Shaft; 3-10a. Eccentric Push Plate;

[0045] 4. Bedside extension mechanism; 4-1. Guardrail; 4-2. Fixed connecting rod; 4-3. Movable connecting rod; 4-4. Folding hinge;

[0046] 5. Linkage Mechanism; 5-1. Linkage Swing Arm; 5-2. Linkage Rod; 5-2a. Waist-shaped Hole; 5-3. Swing Arm Shaft; 5-3a. Lower Swing Arm; 5-3b. Upper Swing Arm; 5-4. Connecting Rod; 5-5. Horizontal Push-Pull Rod; 5-5a. Connecting Rod; 5-6. Folding Return Spring; 5-7. Hinge Seat; 5-8. Horizontal Guide Rod; 5-9. Diagonal Tie Rod; 5-10. Bed Side Guide Rod; 5-11. Sliding Seat; 5-12. Scissor Fork Linkage; 5-13. Side Frame;

[0047] 6. Backrest lifting mechanism; 6-1. Backrest lifting and tilting frame; 6-2. Backrest lifting pivot; 6-2a. Backrest lifting swing arm; 6-3. Backrest lifting electric push rod;

[0048] 7. Leg bending mechanism; 7-1. First leg bending support; 7-2. Second leg bending support; 7-2a. First hinge seat; 7-3. Leg bending linkage; 7-3a. Second hinge seat; 7-4. Leg bending electric push rod;

[0049] 8. Bed end guardrail. Detailed Implementation

[0050] 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.

[0051] [Example 1]

[0052] Combination Figures 1 to 4As shown, this embodiment of a nursing bed that can be extended laterally with a turning motion includes a bed frame 1, a mattress support assembly 2, and a turning mechanism 3. The mattress support assembly 2 is located on the upper part of the bed frame 1, and the turning mechanism 3 is located on the bed frame 1 and below the mattress support assembly 2. It is used to drive the mattress support assembly 2 to turn laterally in the left and right directions of the nursing bed, thereby realizing the turning motion of the patient. The nursing bed of this embodiment also includes bed side extension mechanisms 4 located on the left and right sides of the bed frame 1. The turning mechanism 3 is connected to the bed side extension mechanisms 4 on the left and right sides through a linkage mechanism 5, so that the bed side extension mechanisms 4 can be relatively extended or retracted with the movement of the turning mechanism 3.

[0053] The bed-side extension mechanism 4 includes a fixed connecting rod 4-2, a movable connecting rod 4-3, and folding hinges 4-4. The fixed connecting rod 4-2 is horizontally fixed to the side of the bed frame 1. The movable connecting rod 4-3 is connected to the fixed connecting rod 4-2 through several spaced folding hinges 4-4, allowing the movable connecting rod 4-3 to slide outward or fold inward. When the movable connecting rod 4-3 is extended outward, it expands the lateral space of the nursing bed. A guardrail 4-1 is installed on the movable connecting rod 4-3. The guardrail 4-1 can slide and fold relative to the bed frame 1.

[0054] The linkage mechanism 5 includes a linkage swing arm 5-1, linkage rods 5-2, and a horizontal telescopic assembly. The linkage swing arm 5-1 is connected to the turning mechanism 3 and swings to the corresponding side as the turning mechanism 3 turns. The free end of the linkage swing arm 5-1 is hinged to two linkage rods 5-2, which are respectively connected to the aforementioned movable connecting rods 4-3 via the horizontal telescopic assembly. When the turning mechanism 3 moves the mattress support assembly 2 to one side, the movable connecting rod 4-3 on the same side is moved outward and unfolded through the horizontal telescopic assembly. The folding hinge 4-4 between the movable connecting rod 4-3 and the fixed connecting rod 4-2 unfolds and serves as a support for the bed side extension space. When the turning mechanism 3 moves the mattress support assembly 2 to the other side, the movable connecting rod 4-3 on the opposite side remains folded on the side of the bed frame 1. That is, the bed side extension mechanism 4 unfolds to the side the turning mechanism 3 turns to, while the bed side extension mechanism 4 on the other side remains folded.

[0055] The aforementioned nursing bed design incorporates a hinged sliding structure on the side of the bed frame, linked to the turning mechanism via a linkage mechanism. When the turning mechanism moves the mattress support assembly to one side, a horizontal telescopic component extends the movable connecting rod on the same side outwards. Conversely, when the turning mechanism moves the mattress support assembly to the other side, the movable connecting rod on the opposite side remains folded on the side of the bed frame. This design extends the nursing bed to the turning side, increasing space on that side and improving patient safety and comfort during turning, while preventing secondary injuries. Furthermore, the side extension and linkage mechanisms are simple, compact, stable, reliable, and easy to install and arrange on the nursing bed.

[0056] Reference Figures 2 to 4As shown, in this embodiment, the aforementioned turning mechanism 3 includes a turning electric push rod 3-1, a turning swing arm 3-2, a turning support rod 3-3, a push connecting rod 3-4, a bracket hinge seat 3-5, and a turning shaft 3-10. The turning shaft 3-10 is rotatably disposed in the middle of the bed frame 1 in the front-back direction. One end of the turning electric push rod 3-1 is hinged to the bed frame 1, and the other end is hinged to the turning swing arm 3-2 fixed on the turning shaft 3-10. The turning shaft 3-10 is rotated by the extension and retraction movement of the turning electric push rod 3-1. One turning support rod 3-3 is provided on each of the left and right sides of the turning shaft 3-10, and the two turning support rods 3-3 are close to the guardrail. One end of the middle section of the bed frame is rotatably connected to the bed frame 1. The other end of the turning support rod 3-3 is hinged to the corresponding side of the mattress support assembly 2 via push-up connecting rods 3-4. An eccentric push plate 3-10a is fixed on the turning shaft 3-10, located below the turning support rod 3-3. When the turning electric push rod 3-1 drives the turning shaft 3-10 to rotate to one side, the eccentric push plate 3-10a swings and pushes the turning support rod 3-3 on the corresponding side to move upward. Through the corresponding push-up connecting rod 3-4, the mattress support assembly 2 is turned to the opposite side. The linkage swing arm 5-1 is fixed on the turning shaft 3-10 and swings left and right with the rotation of the turning shaft 3-10. The turning mechanism 3 can stably control the left and right turning of the mattress support assembly 2 with a single turning electric push rod 3-1. The structure is simple and compact, occupies little space, and the turning movement is stable and reliable. Specifically, the turning support rod 3-3 can be rotatably mounted coaxially on the turning shaft 3-10, and the eccentric push plate 3-10a is fixed on the turning shaft 3-10. When turning to one side, the turning shaft 3-10 rotates, causing the eccentric push plate 3-10a to rotate. The eccentric push plate 3-10a pushes the corresponding turning support rod 3-3 upward, and the turning support rod 3-3 pushes the corresponding mattress support component 2 through the push rod 3-4, thereby realizing the side-turning movement of the mattress support component 2. At this time, the turning support rod 3-3 on the other side is in a free state, so the mattress support component 2 on the other side is in a horizontal state. Conversely, when turning to the other side, the eccentric push plate 3-10a pushes the turning support rod 3-3 on the other side. The turning support rod 3-3 on the side that has been raised loses the pushing force of the eccentric push plate 3-10a and returns to a horizontal state under the action of the mattress support component 2 and the patient's weight.

[0057] Reference Figure 2 and Figure 3As shown, in this embodiment, the mattress support assembly 2 includes a central support frame 2-1 and side support frames 2-2 hinged to the left and right sides of the central support frame 2-1. A connecting plate 3-8 is hinged to the outer end of the side support frame 2-2. A slider 3-7 is provided on the connecting plate 3-8 and slidably mounted on a guide rod 3-6. The guide rod 3-6 is horizontally mounted on the bed frame 1 along the width of the nursing bed. A turning return spring 3-9 is also sleeved on the guide rod 3-6, compressing and abutting against the slider 3-7 on the corresponding side. With this design, during turning movements, the outer end of the side support frame 2-2 can slide horizontally relative to the guide rod 3-6, ensuring the overall stability of the mattress support assembly 2 and improving safety. A turning roller 2-4, capable of lateral rolling on the bed frame 1, is also provided on the outer end of the side support frame 2-2, reducing friction and noise between the side support frame and the bed frame during turning movements.

[0058] Further participation Figures 2 to 4 As shown, in this embodiment, the horizontal telescopic component adopts a swing arm slider mechanism, specifically including a swing arm shaft 5-3, a connecting rod 5-4, a horizontal push-pull rod 5-5, and a folding return spring 5-6. Two swing arm shafts 5-3 are horizontally arranged on both sides of the bed frame 1 along the front-back direction of the nursing bed. The swing arm shafts 5-3 can rotate freely axially. The swing arm shafts 5-3 have a lower swing arm 5-3a and an upper swing arm 5-3b. The linkage rod 5-2 is provided with a waist-shaped hole 5-2a. The linkage rod 5-2 slides with the lower swing arm 5-3a on the corresponding side through the waist-shaped hole 5-2a, which is used to pull the lower swing arm 5-3a to swing with the turning action of the turning mechanism 3. The waist-shaped hole 5-2a can cooperate with the turning action of the turning mechanism 3, so that the turning action is more synchronized with the expansion of the bed side. The upper swing arm 5-3b is connected to the corresponding horizontal push-pull rod 5-5 via connecting rod 5-4. The horizontal push-pull rod 5-5 is laterally slidably mounted on the side of the bed frame 1 and connected to the corresponding movable connecting rod 4-3. A folding return spring 5-6 is provided between the horizontal push-pull rod 5-5 and the bed frame 1, keeping the movable connecting rod 4-3 folding inward. Two horizontal push-pull rods 5-5 can be provided in parallel, and the ends of the two horizontal push-pull rods 5-5 are connected via connecting rod 5-5a. Connecting rod 5-4 is rotatably connected to connecting rod 5-5a. Figure 2As shown, during the leftward turning motion, the turning electric push rod 3-1 drives the turning swing arm 3-2 to swing to the right, which in turn drives the right-side turning support rod 3-3 to lift upward through the eccentric push plate 3-10a. The turning support rod 3-3 lifts the right-side side support frame 2-2 upward through the push rod 3-4, thereby causing the middle support frame 2-1 to flip to the left. At the same time as the turning motion, the lower swing arm 5-3a on the left side engages with the waist-shaped hole 5-2a on the left side of the linkage rod 5-2. The linkage rod 5-2 pulls the lower swing arm 5-3a to swing to the right, which in turn drives the upper swing arm 5-3b to swing to the left. Through the connecting rod 5-4, the horizontal push-pull rod 5-5 is pushed to move outward, causing the movable connecting rod 4-3 to move away from the fixed connecting rod 4-2. The folding hinge 4-4 between the two unfolds, serving as support for the expanded space. On the right side, the linkage rod 5-2 moves to the right. Under the action of the waist-shaped groove 5-2a, the linkage rod 5-2 will not drive the lower swing arm 5-3a to move. At this time, under the action of the folding return spring 5-6, the movable connecting rod 4-3 on the right side can remain in a folded state. The horizontal telescopic component has a simple and ingenious structural design, which is easy to install on the nursing bed. Furthermore, by utilizing the waist-shaped groove 5-2a on the linkage rod 5-2, it can cooperate with the turning mechanism 3 to provide a stable coordination between the turning action and the bed side extension action, making the linkage action of the two more smooth. The structure is simple and compact, and the transmission is stable and reliable.

[0059] Reference Figure 5As shown in the illustration, this embodiment of a nursing bed can be extended laterally with a turning motion. The bed frame 1 is also equipped with a backrest lifting mechanism 6. The backrest lifting mechanism 6 includes a backrest tilting frame 6-1, a backrest pivot 6-2, and a backrest electric push rod 6-3. The backrest tilting frame 6-1 is fixed to the backrest pivot 6-2, and both ends of the backrest pivot 6-2 are rotatably mounted on the bed frame 1. One end of the backrest electric push rod 6-3 is hinged to the bed frame 1, and the other end is hinged to a backrest swing arm 6-2a on the backrest pivot 6-2. The tilting motion of the backrest tilting frame 6-1 around the backrest pivot 6-2 can be controlled by controlling the extension and retraction of the backrest electric push rod 6-3. The mattress support assembly 2 also has a back support and a hip support hinged together. The backrest tilting frame 6-1 is located below the back support, and the lower side of the back support also has a backrest support roller 2-3 that can roll relative to the backrest tilting frame 6-1. The backrest lifting action is stable and reliable, and the friction and noise generated by the backrest lifting action are low. Specifically, in this embodiment, the aforementioned intermediate support frame 2-1 consists of a back intermediate support 2-1a and a hip intermediate support 2-1b, and the side support frame 2-2 consists of a back side support 2-2a and a hip side support 2-2b. The back intermediate support 2-1a is hinged to both sides of the back side support 2-2a, and the hip intermediate support 2-1b is hinged to both sides of the hip side support 2-2b. The back intermediate support 2-1a and hip intermediate support 2-1b are hinged together, and the back side support 2-2a is hinged to the corresponding hip side support 2-2b. Back-lifting support rollers 2-3 are respectively located at the lower parts of the back intermediate support 2-1a and the back side support 2-2a, and turning rollers 2-4 are respectively located on the back side support 2-2a and the hip side support 2-2b. The rolling direction of the back-lifting support rollers 2-3 is the front-to-back direction of the nursing bed, and the rolling direction of the turning rollers 2-4 is the left-to-right direction of the nursing bed.

[0060] Reference Figure 6 and Figure 7As shown, this embodiment of a nursing bed that can be extended laterally with a turning motion also includes a leg-flexing mechanism 7. The leg-flexing mechanism 7 includes a first leg-flexing support 7-1, a second leg-flexing support 7-2, a leg-flexing connecting rod 7-3, and a leg-flexing electric push rod 7-4. One end of the first leg-flexing support 7-1 is hinged to the rear end of the bed frame 1, and the other end of the first leg-flexing support 7-1 is hinged to the second leg-flexing support 7-2. One end of the leg-flexing connecting rod 7-3 is connected to the rear end of the bed frame 1. The first leg support 7-1, the second leg support 7-2, and the leg-bending link 7-3 form a parallel four-bar linkage at the rear end of the bed frame 1. The leg-bending link 7-3 can adopt an "L"-shaped structure. One end of the leg-bending electric push rod 7-4 is hinged to the lower part of the bed frame 1, and the other end is hinged to the leg-bending link 7-3. The leg-bending electric push rod 7-4 drives the second leg support 7-2 to move horizontally up and down. There is one set of leg-bending links 7-3 on each side of the nursing bed. For easy connection, a first hinge seat 7-2a is provided at the lower part of the second leg support 7-2, and a second hinge seat 7-3a is provided on the leg-bending link 7-3. The leg-bending link 7-3 is hinged to the first hinge seat 7-2a, and the leg-bending electric push rod 7-4 is hinged to the leg-bending link 7-3 through the second hinge seat 7-3a. Figure 6 The image shows the supine position of the leg-flexing mechanism 7. Figure 7 The image shows the lowered state of the leg-bending mechanism 7. Figure 7 The lowered position shown makes it easier for the patient to sit up or wash their feet. Of course, the electric leg flexion lever 7-4 can also connect the second leg flexion support 7-2... Figure 6 The leg flexion mechanism 7 is slightly raised upwards, allowing the patient to slightly lift their legs while lying down, thus improving patient comfort. The second leg flexion support 7-2 has a wide range of motion, allowing the patient's legs to be raised, bent downwards, or flattened. Furthermore, the second leg flexion support 7-2 remains horizontal, allowing the patient to maintain a sitting position, facilitating tasks such as washing the patient's feet.

[0061] return Figure 1 As shown, in this embodiment, the lower part of the bed frame 1 is provided with a base frame 1-1, and the base frame 1-1 is provided with casters 1-2. The casters 1-2 can be universal casters with self-locking function to facilitate the movement of the nursing bed. The bed frame 1 and the base frame 1-1 can be fixedly connected or connected by a lifting mechanism to enable the nursing bed to have a lifting function. The front and rear ends of the bed frame 1 are also provided with bed end plates 8. On the head side, the bed end plate 8 is installed at the front end of the bed frame 1, and on the foot side, the bed end plate 8 is installed at the end of the second leg support 7-2.

[0062] [Example 2]

[0063] This embodiment describes a nursing bed that can be moved laterally to the side of the bed during turning over. Its basic structure and working principle are the same as in Embodiment 1, except that:

[0064] Reference Figures 8 to 11 As shown, in this embodiment, the horizontal telescopic component adopts a scissor-type telescopic mechanism, including a hinge seat 5-7, a horizontal guide rod 5-8, a diagonal tie rod 5-9, a scissor unit, and a side frame 5-13. The bottom of the bed frame 1 is provided with a linkage bracket 1-3, and the two sides of the linkage bracket 1-3 are provided with mounting frames. The side frame 5-13 is installed on the lower part of the movable connecting rod 4-3 on the corresponding side. The side frames 5-13 on both sides are connected to the mounting frames on the corresponding sides through the scissor unit. The telescopic movement of the scissor unit can drive the side frame 5-13 to move horizontally, thereby driving the movable connecting rod 4-3 to retract. The horizontal guide rod 5-8 is fixed to the linkage bracket 1-3 at the bottom of the bed frame 1 along the width direction of the nursing bed. The hinge seat 5-7 is slidably set on the horizontal guide rod 5-8. The two linkage rods 5-2 are respectively hinged to the hinge seat 5-7 on the corresponding side. The linkage rod 5-2 and the linkage swing arm 5-1 are slidably engaged through the waist-shaped hole 5-2a set on the linkage rod 5-2. One end of the diagonal tie rod 5-9 is hinged to the hinge seat 5-7, and the other end is hinged to the sliding part of the scissor unit. When the turning mechanism 3 turns to one side, the linkage swing arm 5-1 pulls the hinge seat 5-7 to move through the linkage rod 5-2 on the corresponding side. The diagonal tie rod 5-9 drives the scissor unit to expand outward. At the same time, the linkage swing arm 5-1 pushes the hinge seat 5-7 on the opposite side to move through the other linkage rod 5-2. The diagonal tie rod 5-9 drives the scissor unit to retract inward. Specifically, the scissor lift unit includes two sets of scissor lift connecting rods 5-12 with intermediate hinges. Both the linkage bracket 1-3 and the side frame 5-13 are equipped with bed side guide rods 5-10. Both ends of the scissor lift connecting rods 5-12 are set on the bed side guide rods 5-10 on the corresponding side through sliding seats 5-11. There are two diagonal tie rods 5-9. One end of each diagonal tie rod 5-9 is hinged to the corresponding hinge seat 5-7, and the other end is hinged to the sliding seat 5-11 of the corresponding scissor lift connecting rod 5-12.

[0065] Reference Figure 9As shown, during the leftward turning movement, the electric turning push rod 3-1 drives the turning swing arm 3-2 to swing to the right, which in turn drives the right-side turning support rod 3-3 to lift upward through the eccentric push plate 3-10a. The turning support rod 3-3 lifts the right-side side support frame 2-2 upward through the push rod 3-4, thereby causing the middle support frame 2-1 to flip to the left. At the same time as the turning movement, the linkage arm 5-1 first contacts the left-side linkage rod 5-2, which pulls the left-side hinge seat 5-7 to move through the linkage rod 5-2. Then, through the left-side diagonal pull rod 5-9, the ends of the scissor link 5-12 that are close to each other are driven to move closer together, so that the left-side side frame 5-13 unfolds outward, so that the movable connecting rod 4-3 moves away from the fixed connecting rod 4-2, and the folding hinge 4-4 between the two unfolds, serving as support for the expanded space. On the right side, the linkage arm 5-1 drives the linkage rod 5-2 on the right side to move to the right. The linkage rod 5-2 pushes the hinge seat 5-7 on the right side to move, and then drives the scissor link 5-12 on the right side to move away from each other through the diagonal tie rod 5-9 on the right side, so that the movable connecting rod 4-3 on the right side is in a folded state.

[0066] The scissor telescopic mechanism described above has a simple and ingenious structural design, making it easy to install on nursing beds. Furthermore, by utilizing the waist-shaped groove on the linkage rod, it can work in conjunction with the turning mechanism to provide a stable coordination between the turning action and the bed-side extension action, making the linkage between the two actions smoother. The structure is simple and compact, and the transmission is stable and reliable.

[0067] This invention discloses a nursing bed that can extend laterally to the side during patient turning. It features a hinged translational structure on the side of the bed frame, linked to the turning mechanism via a linkage mechanism. When the turning mechanism moves the mattress support assembly to one side, a horizontal telescopic component extends the movable connecting rod on the same side outwards. Conversely, when the turning mechanism moves the mattress support assembly to the other side, the movable connecting rod on the opposite side remains folded on the side of the bed frame. This allows the nursing bed to extend to the turning side, increasing space on that side, improving patient safety and comfort during turning, and preventing secondary injuries during the process. Furthermore, the side extension mechanism and linkage mechanism are simple and compact, with stable and reliable movement, and are easy to install and arrange on the nursing bed.

[0068] 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 nursing bed that can be extended laterally with a turning motion, comprising a bed frame (1), a mattress support assembly (2), and a turning mechanism (3), wherein the mattress support assembly (2) is disposed on the upper part of the bed frame (1), and the turning mechanism (3) is disposed on the bed frame (1) and located below the mattress support assembly (2), for driving the mattress support assembly (2) to turn laterally in the left-right direction of the nursing bed; characterized in that: It also includes bed-side extension mechanisms (4) located on the left and right sides of the bed frame (1). The turning mechanism (3) is connected to the bed-side extension mechanisms (4) on the left and right sides via a linkage mechanism (5). The bed-side extension mechanism (4) includes a fixed connecting rod (4-2), a movable connecting rod (4-3), and a folding hinge (4-4). The fixed connecting rod (4-2) is horizontally fixed to the side of the bed frame (1). The movable connecting rod (4-3) is connected to the fixed connecting rod (4-2) through several spaced folding hinges (4-4), so that the movable connecting rod (4-3) can be laterally extended outward or folded inward. A guardrail (4-1) is provided on the movable connecting rod (4-3). The linkage mechanism (5) includes a linkage arm (5-1), a linkage rod (5-2), and a horizontal telescopic assembly. The linkage arm (5-1) is connected to the turning mechanism (3) and swings to the corresponding side as the turning mechanism (3) turns. The free end of the linkage arm (5-1) is hinged to two linkage rods (5-2). The two linkage rods (5-2) are respectively connected to the movable connecting rod (4-3) mentioned above through the horizontal telescopic assembly. When the turning mechanism (3) drives the mattress support assembly (2) to turn to one side, the movable connecting rod (4-3) on the same side is driven to move outward through the horizontal telescopic assembly. After the folding hinge (4-4) between the movable connecting rod (4-3) and the fixed connecting rod (4-2) is unfolded, it serves as a support for the extended space on the side of the bed. When the turning mechanism (3) drives the mattress support assembly (2) to turn to the other side, the movable connecting rod (4-3) on the opposite side remains folded on the side of the bed frame (1).

2. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, as described in claim 1, is characterized in that: The turning mechanism (3) includes a turning electric push rod (3-1), a turning swing arm (3-2), a turning support rod (3-3), a push connecting rod (3-4), a bracket hinge seat (3-5), and a turning shaft (3-10). The turning shaft (3-10) is rotatably mounted in the middle of the bed frame (1) in the front-back direction. One end of the turning electric push rod (3-1) is hinged to the bed frame (1), and the other end is hinged to the turning swing arm (3-2) fixed on the turning shaft (3-10). One turning support rod (3-3) is provided on each side of the turning shaft (3-10), and the two turning support rods (3-3) are rotatably connected relative to the bed frame (1) at the end near the middle of the nursing bed. The other end of the support rod (3-3) is hinged to the corresponding side of the mattress support assembly (2) through the push-up connecting rod (3-4). An eccentric push plate (3-10a) located below the turning support rod (3-3) is also fixed on the turning shaft (3-10). When the turning electric push rod (3-1) drives the turning shaft (3-10) to rotate to one side, the eccentric push plate (3-10a) swings and pushes the turning support rod (3-3) on the corresponding side to move upward. Through the corresponding push-up connecting rod (3-4), the mattress support assembly (2) is driven to turn to the opposite side. The linkage swing arm (5-1) is fixed on the turning shaft (3-10) and swings left and right with the rotation of the turning shaft (3-10).

3. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, as described in claim 2, is characterized in that: The mattress support assembly (2) includes a middle support frame (2-1) and side support frames (2-2) hinged to the left and right sides of the middle support frame (2-1). A connecting plate (3-8) is hinged to the outer end of the side support frame (2-2). A slider (3-7) is provided on the connecting plate (3-8). The slider (3-7) is slidably mounted on the guide rod (3-6). The guide rod (3-6) is horizontally mounted on the bed frame (1) along the width direction of the nursing bed. A turning return spring (3-9) is also sleeved on the guide rod (3-6) and compressed against the slider (3-7) on the corresponding side.

4. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, as described in claim 3, is characterized in that: The outer end of the side support frame (2-2) is also provided with a turning roller (2-4) that can roll laterally on the bed frame (1).

5. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, as described in claim 1, is characterized in that: The bed frame (1) is also provided with a backrest lifting mechanism (6), which includes a backrest flipping frame (6-1), a backrest rotating shaft (6-2), and a backrest electric push rod (6-3). The backrest flipping frame (6-1) is fixed on the backrest rotating shaft (6-2). The two ends of the backrest rotating shaft (6-2) are respectively rotatably mounted on the bed frame (1). One end of the backrest electric push rod (6-3) is hinged to the bed frame (1), and the other end is hinged to the backrest swing arm (6-2a) on the backrest rotating shaft (6-2). The mattress support assembly (2) also has a back support and a hip support hinged together. The backrest flipping frame (6-1) is located below the back support. The lower side of the back support also has a backrest support roller (2-3) that can roll relative to the backrest flipping frame (6-1).

6. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, as described in claim 5, is characterized in that: It also includes a leg-bending mechanism (7), which includes a first leg-bending bracket (7-1), a second leg-bending bracket (7-2), a leg-bending link (7-3), and a leg-bending electric push rod (7-4). One end of the first leg-bending bracket (7-1) is hinged to the rear end of the bed frame (1), and the other end of the first leg-bending bracket (7-1) is hinged to the second leg-bending bracket (7-2). One end of the leg-bending link (7-3) is hinged to the rear end of the bed frame (1). The other end is hinged to the lower part of the second leg support (7-2). The first leg support (7-1), the second leg support (7-2) and the leg link (7-3) form a parallel four-bar linkage at the rear end of the bed frame (1). One end of the leg electric push rod (7-4) is hinged to the lower part of the bed frame (1) and the other end is hinged to the leg link (7-3). The second leg support (7-2) is driven to move horizontally up and down by the leg electric push rod (7-4).

7. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, as described in claim 6, is characterized in that: The lower part of the bed frame (1) is provided with a bottom frame (1-1), and the bottom frame (1-1) is provided with casters (1-2). The front and rear ends of the bed frame (1) are also provided with bed end baffles (8).

8. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, according to any one of claims 1 to 7, is characterized in that: The horizontal telescopic assembly adopts a rocker arm slider mechanism, including a rocker arm shaft (5-3), a connecting rod (5-4), a horizontal push-pull rod (5-5), and a folding return spring (5-6). The rocker arm shaft (5-3) is horizontally arranged on both sides of the bed frame (1) along the front-back direction of the nursing bed. The rocker arm shaft (5-3) has a lower rocker arm (5-3a) and an upper rocker arm (5-3b). The linkage rod (5-2) is provided with a waist-shaped hole (5-2a). The linkage rod (5-2) is connected to the lower rocker arm (5-3b) on the corresponding side through the waist-shaped hole (5-2a). -3a) Sliding engagement, used to pull the lower swing arm (5-3a) to swing with the turning action of the turning mechanism (3). The upper swing arm (5-3b) is connected to the horizontal push-pull rod (5-5) on the corresponding side through the connecting rod (5-4). The horizontal push-pull rod (5-5) is slidably installed on the side of the bed frame (1) and connected to the movable connecting rod (4-3) on the corresponding side. The folding return spring (5-6) is set between the horizontal push-pull rod (5-5) and the bed frame (1) to keep the movable connecting rod (4-3) folding inward.

9. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, according to any one of claims 1 to 7, characterized in that: The horizontal telescopic assembly adopts a scissor-type telescopic mechanism, including a hinge seat (5-7), a horizontal guide rod (5-8), a diagonal tie rod (5-9), a scissor unit, and a side frame (5-13). The bottom of the bed frame (1) is provided with a linkage bracket (1-3), and the two sides of the linkage bracket (1-3) are provided with mounting frames. The side frame (5-13) is installed on the lower part of the movable connecting rod (4-3) on the corresponding side. The two side frames (5-13) are respectively connected to the mounting frames on the corresponding sides through the scissor unit. The horizontal guide rod (5-8) is fixed on the linkage bracket (1-3) at the bottom of the bed frame (1) along the width direction of the nursing bed. The hinge seat (5-7) is slidably arranged on the horizontal guide rod (5-8). The two linkage rods (5-2) The linkage rod (5-2) is hinged to the corresponding hinge seat (5-7) respectively. The linkage rod (5-2) and the linkage arm (5-1) are slidably engaged through the waist-shaped hole (5-2a) on the linkage rod (5-2). One end of the diagonal tie rod (5-9) is hinged to the hinge seat (5-7), and the other end is hinged to the sliding part of the scissor unit. When the turning mechanism (3) turns to one side, the linkage arm (5-1) pulls the hinge seat (5-7) to move through the linkage rod (5-2) on the corresponding side. The diagonal tie rod (5-9) drives the scissor unit to expand outward. At the same time, the linkage arm (5-1) pushes the hinge seat (5-7) on the opposite side to move through another linkage rod (5-2). The diagonal tie rod (5-9) drives the scissor unit to retract inward.

10. The nursing bed that can be shifted and extended to the side of the bed with the turning motion, as described in claim 9, is characterized in that: The scissor lift unit includes two sets of scissor lift links (5-12) with intermediate hinges. Both the linkage bracket (1-3) and the side frame (5-13) are provided with bed side guide rods (5-10). Both ends of the scissor lift link (5-12) are set on the bed side guide rod (5-10) on the corresponding side through sliding seats (5-11). There are two inclined tie rods (5-9). One end of each of the two inclined tie rods (5-9) is hinged to the corresponding hinge seat (5-7), and the other end is hinged to the sliding seat (5-11) of the corresponding scissor lift link (5-12).

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