A turning aid nursing bed

Abstract

The utility model discloses an auxiliary turning-over nursing bed relates to medical facility technical field, include: main bed board, auxiliary bed board and drive arrangement, the second hinged end of auxiliary bed board and the first hinged end of main bed board articulate, and drive arrangement includes first drive part and second drive part, and first drive part is used for making the free end of main bed board with first motion trail and second motion trail motion, and second drive part is used for making the free end of auxiliary bed board with third motion trail and fourth motion trail motion, and first motion trail and third motion trail synchronous generation, and second motion trail and fourth motion trail synchronous generation, and human body can turn over to lateral lying angle under the lifting of main bed board and the support of auxiliary bed board, and auxiliary bed board can prevent human body from sliding in the turning-over process, avoids the problem that patient slides to auxiliary bed board direction because of gravity effect, leads to turning-over failure, improves nursing effect and patient comfort degree.

Description

Technical Field

[0001] This utility model relates to the field of medical facility technology, and in particular to an assisted turning and nursing bed. Background Technology

[0002] With the development of medical and nursing technology, nursing equipment for long-term bedridden patients is receiving increasing attention. Paralyzed or immobile patients are unable to turn over independently, and maintaining the same position for a long time can easily lead to pressure on local tissues, poor blood circulation, and thus pressure ulcers, which seriously threaten the patient's health and quality of life.

[0003] Regularly turning patients is one of the important measures to prevent pressure ulcers. Currently, there are some turning beds on the market that can assist patients in turning over. These beds typically use a flip-up bed board structure, where a drive mechanism lifts one side of the bed board, causing the patient's body to tilt to one side, thus achieving the turning over. However, existing turning beds have certain drawbacks: when one side of the bed board flips, the other side remains horizontal. The patient's body lacks effective fixation and is prone to sliding to the unflipped side due to gravity. This results in the body not being able to rotate synchronously with the flipped bed board, leading to incomplete turning (too small a turning motion) or even failure (failure to lift the body), leaving the patient's back still under pressure. In addition, the patient's body sliding may cause postural discomfort and even increase the risk of skin friction injury.

[0004] Therefore, there is an urgent need for an assisted turning bed that can stably support the patient's body and ensure that the turning action is completed effectively, so as to improve the nursing effect and the patient's comfort. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary turning care bed. The free end of the auxiliary bed board can first turn towards the patient along a third motion trajectory, and then turn in the opposite direction along a fourth motion trajectory. During the turning process along the fourth motion trajectory, the auxiliary bed board can provide support for the patient, prevent the patient from slipping, and ensure the effective completion of the turning.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides an assisted turning and care bed, comprising:

[0008] Main bed board, the main bed board including a first hinge end;

[0009] A secondary bed board, the secondary bed board including a second hinge end, the second hinge end and the first hinge end being hinged together;

[0010] The system includes a first drive unit and a second drive unit. The first drive unit is used to move the free end of the main bed board along a first motion trajectory and a second motion trajectory. The first motion trajectory allows the human body to be flipped from a supine angle to a critical angle, and the second motion trajectory allows the human body to be flipped from a critical angle to a side-lying angle. The second drive unit is used to move the free end of the auxiliary bed board along a third motion trajectory and a fourth motion trajectory. The third motion trajectory allows the auxiliary bed board to be flipped from a horizontal angle to a receiving angle, and the fourth motion trajectory allows the auxiliary bed board to be flipped in the opposite direction from the receiving angle to a horizontal angle. The first motion trajectory and the third motion trajectory are generated synchronously, and the second motion trajectory and the fourth motion trajectory are generated synchronously.

[0011] In one embodiment, the driving device includes a transmission assembly and a power unit. The transmission assembly includes a first driving arm and a second driving arm. The middle portion of the first driving arm is rotatably mounted on the lower side of the main bed board. The first driving arm includes a first driving end and a second driving end. The power unit drives the first driving arm to rotate. The first driving end is used to push the main bed board to rotate along the first motion trajectory and the second motion trajectory. The second driving end is provided with an arc-shaped driving part. The middle portion of the second driving arm is rotatably mounted on the lower side of the auxiliary bed board. The second driving arm includes a third driving end and a fourth driving end. The third driving end is used to push the auxiliary bed plate to move along the third motion trajectory and the fourth motion trajectory. The fourth driving end is used to support the arc-shaped driving part. The fourth driving end includes an arc-shaped concave section and an arc-shaped convex section. The arc-shaped concave section is located between the third driving end and the arc-shaped convex section. Both the arc-shaped concave section and the arc-shaped convex section are located on the downward rotation trajectory of the arc-shaped driving part. When the auxiliary bed plate is on the third motion trajectory, the arc-shaped driving part is located on the arc-shaped concave section. When the auxiliary bed plate is on the fourth motion trajectory, the arc-shaped driving part is located on the arc-shaped convex section.

[0012] As one embodiment, the main bed board further includes a third hinge end, which is disposed on the side of the main bed board away from the first hinge end. There are two auxiliary bed boards, and the second hinge end of the other auxiliary bed board is hinged to the third hinge end.

[0013] As one embodiment, it also includes a rotating assembly and baffles. The rotating assembly includes at least two bushings and a rotating shaft. The bushings are rotatably sleeved on the rotating shaft. The main bed board and the auxiliary bed board are respectively connected to the bushings on the same rotating shaft. At least one baffle is provided on each radial side of the rotating assembly. The baffles are connected to the bed frame that supports the main bed board and the auxiliary bed board.

[0014] As one embodiment, the transmission assembly further includes a transmission arm, a first end of which is rotatably connected to the first drive arm about a first rotation axis, and a second end of which is rotatably connected to the power device about a second rotation axis. Both the first rotation axis and the second rotation axis are parallel to the rotation axis of the middle part of the first drive arm. The power device is used to drive the first drive arm to rotate through the transmission arm.

[0015] In one embodiment, the power device includes a threaded rod, a sleeve, and a limiting structure. The inner wall of the sleeve is provided with an internal thread that matches the threaded rod. A first drag rod is provided radially on the sleeve. The axis of the first drag rod is parallel to the first rotation axis. The second end of the transmission arm is connected to the first drag rod. The limiting structure is used to prevent the sleeve from rotating. The threaded rod is used to drive the sleeve to generate horizontal displacement.

[0016] As one embodiment, the sleeve is further provided with a second drag rod, which is coaxially arranged with the first drag rod. Two sets of transmission components are provided, with the two sets of transmission components respectively arranged on both sides of the sleeve along the axial direction of the second drag rod. The two sets of transmission components are arranged in opposite directions along the line connecting the two auxiliary bed boards. The second ends of the two transmission arms in the two sets of transmission components are detachably connected to the first drag rod and the second drag rod, respectively. One set of transmission components is used to drive the main bed board and one auxiliary bed board to flip over, and the other set of transmission components is used to drive the main bed board and the other auxiliary bed board to flip over.

[0017] In one embodiment, the limiting structure includes a limiting plate and a limiting post. The limiting plate is arranged along the line connecting the two auxiliary bed plates, and the two limiting plates are spaced apart along a direction perpendicular to the line connecting the two auxiliary bed plates. The limiting post is mounted on the sleeve, and one end of the limiting post away from the sleeve extends between the two limiting plates. The first drag rod and the second drag rod are both located below the limiting plate. A hook is provided at the second end of the transmission arm. The fixed end of the hook is connected to the transmission arm, and the opening of the hook faces downward. The free end of the hook extends along the line connecting the two auxiliary bed plates. The transmission arm extends radially to the outside of the transmission arm. The hooks on the two transmission arms are respectively matched with the first drag rod and the second drag rod. The transmission arm is located outside the two limiting plates. A separation rod is provided at the second end of the transmission arm. The separation rod extends towards the limiting plate. A guide slope is provided on the lower side of the limiting plate. The guide slope is slidably engaged with the separation rod. The guide slope is used to guide the separation rod to move up and down. The height of the guide slope in the vertical direction is less than the dimension of the free end of the hook extending to the lower side of the transmission arm.

[0018] As one embodiment, it also includes a support plate and a telescopic device. The support plate is disposed on the bed frame, and a support plate is disposed on the bed frame. The support plate is located at the end of the support plate away from the bed frame and abuts against the support plate. One end of the main bed board is hinged to the end of the support plate away from the support plate. The telescopic device is used to drive the end of the main bed board away from the support plate to rotate around the hinge center between the main bed board and the support plate to assist the human body in sitting up or lying down.

[0019] As one embodiment, it also includes a leg lift board and a drive assembly. The leg lift board is disposed on the side of the support plate away from the main bed board. The end of the leg lift board near the support plate is rotatably connected to the bed frame. The drive assembly is used to drive the leg lift board to assist the patient in bending or straightening their lower legs.

[0020] The present invention achieves the following technical advantages over the prior art:

[0021] In the assisted turning and nursing bed disclosed in this utility model, the main bed board and the auxiliary bed board are hinged together. Under the action of the driving device, the free end of the main bed board can move along a first motion trajectory and a second motion trajectory, and the free end of the auxiliary bed board can move along a third motion trajectory and a fourth motion trajectory. The movement of the free end of the main bed board along the first motion trajectory enables the human body to turn from a supine angle to a critical angle, and the movement along the second motion trajectory enables the human body to turn from a critical angle to a side-lying angle. The movement of the free end of the auxiliary bed board along the third motion trajectory enables the auxiliary bed board to turn from a horizontal angle to a receiving angle, and the movement along the fourth motion trajectory enables the auxiliary bed board to turn from a horizontal angle to a receiving angle. The receiving angle is reversed to a horizontal angle, and the first and third motion trajectories are generated synchronously, as are the second and fourth motion trajectories. When the human body reaches the critical angle under the support of the main bed board, the auxiliary bed board can just reach the receiving angle. At this time, the side of the human body abuts against the auxiliary bed board, which can prevent the human body from sliding down. As the main bed board and auxiliary bed board continue to rotate, the human body can be rolled to a side-lying angle under the support of the main bed board and the auxiliary bed board, thus completing the turning over. This avoids the problem of the patient sliding towards the auxiliary bed board due to gravity, which would lead to the failure of turning over, thus improving the nursing effect and patient comfort. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1This is a schematic diagram showing the main bed board and auxiliary bed board of the assisted turning care bed flipped up in an embodiment of this utility model;

[0024] Figure 2 for Figure 1 A diagram from another perspective;

[0025] Figure 3 This is a schematic diagram showing the main bed board and auxiliary bed board of the assisted turning care bed flipped up in an embodiment of this utility model;

[0026] Figure 4 for Figure 3 A diagram from another perspective;

[0027] Figure 5 This is a schematic diagram of the transmission assembly in an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the transmission assembly from another perspective in an embodiment of this utility model;

[0029] Figure 7 This is a schematic diagram showing the horizontal state of the main bed board and the auxiliary bed board in an embodiment of this utility model;

[0030] Figure 8 This is a schematic diagram of the leg-lifting board in an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the main bed board assisting a person in sitting up in an embodiment of this utility model;

[0032] Figure 10 for Figure 7 A top-down view;

[0033] Figure 11 for Figure 10 A magnified view of position A in the middle;

[0034] Figure 12 This is a schematic diagram of the first and second sub-plates in an embodiment of this utility model;

[0035] The components are as follows: 1. Main bed board; 2. Sub-bed board; 3. First drive arm; 4. Second drive arm; 5. Arc-shaped drive unit; 6. Arc-shaped concave section; 7. Arc-shaped convex section; 8. Baffle; 9. Bushing; 10. Rotating shaft; 11. Transmission arm; 12. Threaded rod; 13. Sleeve; 14. First drag rod; 15. Second drag rod; 16. Limiting plate; 17. Limiting post; 18. Hook; 19. Separation rod; 20. Guide slope; 21. Support plate; 22. Leg lifting plate; 23. Bed frame; 24. Support plate; 25. First drive rod; 26. Second drive rod; 27. Auxiliary plate; 28. First sub-plate; 29. ​​Second sub-plate. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] The purpose of this invention is to provide an auxiliary turning and care bed to solve the problems existing in the prior art. By supporting the patient with the auxiliary bed board, the problem of the patient sliding down due to gravity during the turning process is avoided, thereby improving the nursing effect and patient comfort.

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Please refer to Figures 1-12The assisted turning and nursing bed disclosed in this embodiment of the utility model includes: a main bed board 1, a secondary bed board 2, and a driving device; wherein, the main bed board 1 includes a first hinge end, the secondary bed board 2 includes a second hinge end, the second hinge end and the first hinge end are hinged together, the driving device includes a first driving part and a second driving part, the first driving part is used to move the free end of the main bed board 1 along a first motion trajectory and a second motion trajectory; the movement of the free end of the main bed board 1 along the first motion trajectory enables the human body to turn from a supine angle to a critical angle, and the movement along the second motion trajectory enables the human body to turn from the critical angle to a side-lying angle; the second driving part is used to move the free end of the secondary bed board 2 along a third motion trajectory and a fourth motion trajectory, the movement of the free end of the secondary bed board 2 along the third motion trajectory enables the secondary bed board 2 to turn from a horizontal angle to a receiving angle, and the movement along the fourth motion trajectory enables the secondary bed board 2 to turn in the opposite direction from the receiving angle to a horizontal angle, the first motion trajectory and the third motion trajectory are generated synchronously, and the second motion trajectory and the fourth motion trajectory are generated synchronously. Its working principle is as follows: In the initial state, both the main bed board 1 and the auxiliary bed board 2 are in a horizontal position. The human body lies flat on the main bed board 1. Under the action of the first drive unit, the free end of the main bed board 1 flips along a first motion trajectory, that is, the end of the main bed board 1 away from the auxiliary bed board 2 flips upward with the hinge axis of the main bed board 1 and the auxiliary bed board 2 as the rotation center, simultaneously flipping upward to support the side of the human body away from the auxiliary bed board 2. At the same time, under the action of the second drive unit, the free end of the auxiliary bed board 2 flips along a third motion trajectory, that is, the end of the auxiliary bed board 2 away from the main bed board 1 flips upward with the hinge axis of the main bed board 1 and the auxiliary bed board 2 as the rotation center. As the main bed board 1 continues to flip, the tilt angle of the human body gradually increases. When the human body flips to the critical angle, the auxiliary bed board 2 just flips to the receiving angle. At this time, the auxiliary bed board 2 abuts against the side of the patient, thus providing support for the patient. The auxiliary bed board 2 provides support to prevent the patient from sliding down. The main bed board 1 continues to rotate, and the free end of the main bed board 1 enters the second motion trajectory, while the free end of the auxiliary bed board 2 enters the fourth motion trajectory. That is, the main bed board 1 continues to rotate in the original direction, while the auxiliary bed board 2 rotates in the opposite direction. The second and fourth motion trajectories are carried out simultaneously. Therefore, even if the downward force generated by the patient's own weight gradually exceeds the friction between the patient and the main bed board 1 as the main bed board 1 rotates, the patient's body will not slide down under the support of the auxiliary bed board 2. Ultimately, the patient's body can reach a side-lying angle under the support of the main bed board 1 and the auxiliary bed board 2, completing an effective turn. This avoids the problem of the patient sliding towards the auxiliary bed board 2 due to gravity, which could lead to failure to turn or skin friction damage, thus improving the nursing effect and patient comfort.

[0040] It is understood that the critical angle in this application can be adjusted according to actual needs. Specifically, when the free end of the main bed board 1 moves along the first motion trajectory, the flip angle of the main bed board 1 gradually increases from 0°. During this process, the downward force generated by the weight of the human body will gradually approach the maximum friction force between the human body and the main bed board 1. When the downward force is equal to the maximum friction force, the human body reaches the critical point of about to slide down. Therefore, the critical angle is acceptable as long as it is not greater than the angle of the main bed board 1 when the downward force is equal to the maximum friction force. Furthermore, as the flip angle of the main bed board 1 gradually increases, the friction force between the human body and the main bed board 1 gradually increases from 0 to the maximum friction force. The greater the friction force, the greater the pulling sensation on the patient's skin. Therefore, considering the patient's comfort, the value of the critical angle can be less than the angle of the main bed board 1 when the downward force is equal to the maximum friction force.

[0041] In this embodiment, the driving device includes a first cylinder, a second cylinder, and a controller. The output end of the first cylinder is rotatably connected to the free end of the main bed board 1, and the mounting base of the first cylinder is rotatably connected to the bed frame 23. The output end of the second cylinder is rotatably connected to the free end of the auxiliary bed board 2, and the mounting base of the second cylinder is rotatably connected to the bed frame 23. When the output shaft of the first cylinder extends or retracts, it can provide the thrust or pull required for rotation of the free end of the main bed board 1. When the output shaft of the second cylinder extends or retracts, it can provide the thrust or pull required for rotation of the free end of the auxiliary bed board 2. This is a common driving method and will not be described in detail here. The controller can control the working state of the first cylinder and the second cylinder respectively, thereby making the main bed board 1 and the auxiliary bed board 2 move according to a preset trajectory.

[0042] In this embodiment, the driving device can also be an electric push rod. The electric push rod, in conjunction with the electronic limiter, can also make the main bed board 1 and the auxiliary bed board 2 move along a set trajectory.

[0043] In this embodiment, the driving device includes a transmission assembly and a power unit. The transmission assembly includes a first driving arm 3 and a second driving arm 4. The middle part of the first driving arm 3 is rotatably mounted on the lower side of the main bed board 1. The first driving arm 3 includes a first driving end and a second driving end. The power unit drives the first driving arm 3 to rotate. The first driving end serves as a first driving part, used to push the main bed board 1 to rotate along a first motion trajectory and a second motion trajectory. The second driving end is provided with an arc-shaped driving part 5. The middle part of the second driving arm 4 is rotatably mounted on the lower side of the auxiliary bed board 2. The second driving arm 4 includes a third driving end and a second driving end. The fourth drive end has four driving ends. The third drive end serves as the second drive unit, used to push the auxiliary bed plate 2 to move along the third and fourth motion trajectories. The fourth drive end is used to support the arc-shaped drive unit 5. The fourth drive end includes an arc-shaped concave section 6 and an arc-shaped convex section 7. The arc-shaped concave section 6 is located between the third drive end and the arc-shaped convex section 7. Both the arc-shaped concave section 6 and the arc-shaped convex section 7 are located on the downward rotation trajectory of the arc-shaped drive unit 5. When the auxiliary bed plate 2 is on the third motion trajectory, the arc-shaped drive unit 5 is located on the arc-shaped concave section 6. When the auxiliary bed plate 2 is on the fourth motion trajectory, the arc-shaped drive unit 5 is located on the arc-shaped convex section 7.Its working principle is as follows: the first drive end abuts against the main bed board 1, and the power device drives the first drive arm 3 to rotate. The first drive end gradually rises, thereby providing upward support to the main bed board 1, causing the free end of the main bed board 1 to move along the first motion trajectory. At the same time, the second drive end rotates gradually downward and away from the second drive arm 4. The initial position of the second drive end is close to or the same as the height of the rotation center of the first drive arm 3. Therefore, during the downward rotation of the second drive end, the downward displacement in the first half is greater than the horizontal displacement away from the second drive arm 4, and the downward displacement in the second half is less than the horizontal displacement away from the second drive arm 4. The arc-shaped drive part 5 slides with the fourth drive end. The arc-shaped drive part 5 on the second drive end gradually moves from the end of the arc-shaped concave section 6 away from the arc-shaped convex section 7 to the end closer to the arc-shaped convex section 7, and at the same time presses down on the fourth drive end. As the fourth drive end presses down, the third drive end flips upward, pushing the free end of the auxiliary bed board 2. Moving along the third motion trajectory, as the first drive arm 3 continues to rotate, the free end of the main bed board 1 enters the second motion trajectory. Simultaneously, the arc-shaped drive part 5 moves from the concave arc section 6 to the convex arc section 7. At this point, because the second drive end gradually moves away from the second drive arm 4, the arc-shaped drive part 5 also gradually moves away from the second drive arm 4. Furthermore, the horizontal displacement of the arc-shaped drive part 5 away from the second drive arm 4 gradually exceeds the downward displacement of the arc-shaped drive part 5. The arc-shaped drive part 5 changes from actively providing downward pressure to the fourth drive end to passively providing resistance to prevent its reverse rotation. At this point, under the influence of the patient's body weight and the weight of the auxiliary bed board 2, the auxiliary bed board 2 begins to rotate in the opposite direction, and the second drive arm 4 also begins to rotate in the opposite direction. That is, when the arc-shaped drive part 5 passes the junction of the concave arc section 6 and the convex arc section 7, the free end of the auxiliary bed board 2 enters the fourth motion trajectory from the third motion trajectory until the auxiliary bed board 2 returns to a horizontal position, and the main bed board 1 lifts the patient to a side-lying angle.

[0044] In this embodiment, the first drive end is provided with an arc-shaped first drive rod 25, and the arc-shaped surface of the first drive rod 25 slides in cooperation with the main bed plate 1.

[0045] In this embodiment, the third drive end is provided with an arc-shaped second drive rod 26, and the arc-shaped surface of the second drive rod 26 slides in cooperation with the auxiliary bed plate 2.

[0046] In this embodiment, the power unit is a cylinder. The output end of the cylinder is rotatably connected to a position of the first drive arm 3 away from the rotation center of the first drive arm 3. The base of the cylinder is rotatably mounted on the bed frame 23. When the cylinder extends or retracts, it can drive the first drive arm 3 to rotate. Of course, the power unit can also be a hydraulic cylinder.

[0047] In this embodiment, the main bed board 1 further includes a third hinge end, which is located on the side of the main bed board 1 away from the first hinge end. There are two auxiliary bed boards 2. The second hinge end of one auxiliary bed board 2 is hinged to the first hinge end, and the second hinge end of the other auxiliary bed board 2 is hinged to the third hinge end. Taking the patient's position on the hospital bed as an example, when the patient needs to turn to the left, the main bed board 1 and the left auxiliary bed board 2 rotate around the axis of their hinge joint. At this time, the right end of the main bed board 1 moves along the first and second motion paths as a free end, and the right auxiliary bed board 2 flips up along with the main bed board 1. The left end of the left auxiliary bed board 2 moves along the third and fourth motion paths as a free end. When the patient needs to turn to the right, the main bed board 1 and the right auxiliary bed board 2 rotate around the axis of their hinge joint. At this time, the left end of the main bed board 1 moves along the first and second motion paths as a free end, and the left auxiliary bed board 2 flips up along with the main bed board 1. The right end of the right auxiliary bed board 2 moves along the third and fourth motion paths as a free end.

[0048] In this embodiment, the assisted turning care bed also includes a rotating assembly and baffles 8. The rotating assembly includes at least two bushings 9 and a rotating shaft 10. Taking the setting of two bushings 9 as an example, the two bushings 9 are rotatably sleeved on the rotating shaft 10. The main bed board 1 and the auxiliary bed board 2 are respectively connected to the two bushings 9 on the same rotating shaft 10. At least one baffle 8 is provided on each of the radial sides of the rotating assembly. The baffle 8 is connected to the bed frame 23 that supports the main bed board 1 and the auxiliary bed board 2. Taking the patient's need to turn to the left as an example, the main bed board 1 and the left auxiliary bed board 2 rotate around the axis of the rotating assembly between them. Under the action of the baffle 8, the rotating shaft 10 and bushing 9 between the main bed board 1 and the left auxiliary bed board 2 cannot move left or right, but can rotate around the axis of the rotating assembly. Specifically, the right end of the main bed board 1 is the free end, rotating counterclockwise on the rotating shaft 10 through the bushing 9, and the left end of the auxiliary bed board 2 is the free end, rotating clockwise on the rotating shaft 10 through the bushing 9. The vertical height of the rotating shaft 10 remains unchanged and is always located between the baffles 8. At the same time, the baffles 8 on both radial sides of the rotating assembly are not connected to each other. Therefore, when the right end of the main bed board 1 rotates as the free end, the rotating assembly on the right side of the main bed board 1 can move upward and disengage from the baffle 8, thereby driving the right auxiliary bed board 2 to rotate together. Similarly, when the patient needs to turn to the right, the left end of the main bed board 1 acts as the free end, causing the left auxiliary bed board 2 to flip upward, and the right end of the right auxiliary bed board 2 acts as the free end to flip upward. The specific process will not be described in detail.

[0049] Furthermore, three, four or more bushings 9 can be provided to improve the stable movement of the plates on both sides of the rotating assembly. Preferably, three bushings 9 are provided, with two bushings 9 located near one end of the rotating shaft 10 and the other bushing 9 located near the other end of the rotating shaft 10.

[0050] In this embodiment, the position of the baffle 8 can be adjusted along the axial direction of the rotating shaft 10 to improve the stability of the device during operation.

[0051] In this embodiment, the baffle 8 can be replaced with a split bushing 9, a quick clamping sleeve, or other openable bushing 9 structure, as long as the rotating shaft 10 is allowed to rotate when it needs to rotate, and the rotating shaft 10 is allowed to move upward when it is flipped up with the main bed board 1.

[0052] In this embodiment, the transmission assembly further includes a transmission arm 11. The first end of the transmission arm 11 is rotatably connected to the first drive arm 3 about a first rotation axis, and the second end of the transmission arm 11 is rotatably connected to the power device about a second rotation axis. Both the first rotation axis and the second rotation axis are parallel to the rotation axis of the middle part of the first drive arm 3. The power device is used to drive the first drive arm 3 to rotate through the transmission arm 11.

[0053] In this embodiment, the power unit includes a threaded rod 12, a sleeve 13, and a limiting structure. The inner wall of the sleeve 13 is provided with an internal thread that matches the threaded rod 12. A first drag rod 14 is radially arranged on the sleeve 13. The axis of the first drag rod 14 is parallel to the first rotation axis. The second end of the transmission arm 11 is connected to the first drag rod 14. The limiting structure is used to prevent the sleeve 13 from rotating. The threaded rod 12 is used to drive the sleeve 13 to generate horizontal displacement. The rotation of the threaded rod 12 can drive the sleeve 13 to move along the axial direction of the threaded rod 12. The first drag rod 14 can provide horizontal tension. When the first drag rod 14 generates horizontal displacement, it can pull the first drive arm 3 to rotate, thereby driving the main bed plate 1 and the auxiliary bed plate 2 to flip.

[0054] Preferably, the end of the threaded rod 12 is provided with a crank handle, which can be turned by hand by the caregiver.

[0055] Furthermore, the threaded rod 12 is set horizontally.

[0056] In this embodiment, a drive motor is provided at the end of the threaded rod 12. The drive motor drives the threaded rod 12 to rotate, which enables the automatic flipping of the main bed board 1 and the auxiliary bed board 2.

[0057] In this embodiment, a second drag rod 15 is also provided on the sleeve 13. The second drag rod 15 is coaxially arranged with the first drag rod 14. Two sets of transmission components are provided. Along the axial direction of the second drag rod 15, the two sets of transmission components are respectively arranged on both sides of the sleeve 13. Along the line connecting the two auxiliary bed plates 2, the two sets of transmission components are arranged in opposite directions. The second ends of the two transmission arms 11 in the two sets of transmission components are detachably connected to the first drag rod 14 and the second drag rod 15, respectively. One set of transmission components is used to drive the main bed plate 1 to flip with one auxiliary bed plate 2, and the other set of transmission components is used to drive the main bed plate 1 to flip with another auxiliary bed plate 2. It can be understood that the opposite arrangement of the two sets of transmission components mentioned above means that the two first drive arms 3 are arranged in opposite directions, the two second drive arms 4 are arranged in opposite directions, and the two transmission arms 11 are also arranged in opposite directions along the line connecting the two auxiliary bed plates 2. Specifically, in the transmission assembly for controlling the rotation of the main bed board 1 and the left auxiliary bed board 2, the first driving end of the first drive arm 3 is located on the right side, the second driving end of the first drive arm 3 is located on the left side, the fourth driving end of the second drive arm 4 is located on the right side, the third driving end of the second drive arm 4 is located on the left side, the first end of the transmission arm 11 is located on the left side, and the second end of the transmission arm 11 is located on the right side. When the sleeve 13 moves towards the transmission arm 11 of one set of transmission assemblies, the first drag rod 14 drags the transmission arm 11 horizontally. When the sleeve 13 moves towards the transmission arm 11 of another set of transmission assemblies, the second drag rod 15 drags the transmission arm 11 horizontally. This allows the auxiliary bed boards 2 on both sides to be flipped through a single sleeve 13.

[0058] In this embodiment, the limiting structure includes a limiting plate 16 and a limiting post 17. The limiting plate 16 is arranged along the line connecting the two auxiliary bed plates 2, and the two limiting plates 16 are spaced apart along a direction perpendicular to the line connecting the two auxiliary bed plates 2. The limiting post 17 is mounted on the sleeve 13, and one end of the limiting post 17 away from the sleeve 13 extends between the two limiting plates 16. The cooperation between the limiting plate 16 and the limiting post 17 can prevent the sleeve 13 from rotating.

[0059] Furthermore, two limit posts 17 are provided, and the two limit posts 17 are respectively provided on the side walls at both ends of the axial direction of the sleeve 13.

[0060] Preferably, the size of the limiting post 17 is matched with the distance between the two limiting plates 16 along the line connecting the two limiting plates 16.

[0061] In this embodiment, the limiting structure is a slide rail, which extends along the axial direction of the threaded rod 12. The sleeve 13 has a shape that matches the slide rail, and the sleeve 13 is located within the slide rail.

[0062] In this embodiment, the first drag rod 14 and the second drag rod 15 are both located on the lower side of the limiting plate 16. The second end of the transmission arm 11 is provided with a hook 18. The fixed end of the hook 18 is connected to the transmission arm 11. The opening of the hook 18 is set downward. The free end of the hook 18 extends radially to the outside of the transmission arm 11. The hooks 18 on the two transmission arms 11 are respectively matched with the first drag rod 14 and the second drag rod 15. The transmission arm 11 is located on the outside of the two limiting plates 16. The second end of the transmission arm 11 is provided with a separating rod 19. The separating rod 19 extends toward the limiting plate 16. The lower side of the limiting plate 16 is provided with a guide slope 20. The guide slope 20 is slidably engaged with the separating rod 19. The guide slope 20 is used to guide the separating rod 19 to move up and down. The height of the guide slope 20 in the vertical direction is less than the size of the free end of the hook 18 extending to the lower side of the transmission arm 11.Its working principle is as follows: In the initial state, the free ends of the hooks 18 of both transmission arms 11 are located below their corresponding transmission arms 11. The second end of the transmission arm 11 on the left extends to the right side of the first drag rod 14, and the second end of the transmission arm 11 on the right extends to the left side of the second drag rod 15. The separation rod 19 on the left transmission arm 11 is located at the highest point of the guide slope 20 of a limiting plate 16, and the left transmission arm 11 is located above the first drag rod 14. The separation rod 19 on the right transmission arm 11 is located at the highest point of the guide slope 20 of another limiting plate 16, and the right transmission arm 11 is located above the second drag rod 14. On the upper side of rod 15, as the threaded rod 12 rotates, sleeve 13 moves to the right. Since the height of the vertical guide slope 20 is less than the dimension of the free end of hook 18 extending downward to the lower side of transmission arm 11, the first drag rod 14 can push hook 18 to the right, thereby causing the left transmission arm 11 to move to the right, driving the left first drive arm 3 and left second drive arm 4 to move. At the same time, the free end of hook 18 tilts towards transmission arm 11. While the first drag rod 14 pushes hook 18 to the right, it can cause transmission arm 11 to rotate downward about the first end as the rotation center, causing the separating rod 19 to move along the guide slope. The guide ramp 20 moves downward (the height of the guide ramp 20 on this side gradually decreases from left to right) and eventually separates from the guide ramp 20, so that the sleeve 13 can drive the transmission arm 11 to complete the process of the human body flipping to the left. When the transmission arm 11 flips downward until the first drag rod 14 is at the bottom of the hook 18, the separation rod 19 is still located on the upper side of the guide ramp 20. The threaded rod 12 is rotated in the opposite direction, and the sleeve 13 begins to move to the left. At this time, the first drag rod 14 can provide a leftward thrust to the hook 18. When the separation rod 19 contacts the guide ramp 20, the guide ramp 20 can provide an upward thrust to the separation rod 19. As the lever 14 continues to move to the left, the separating lever 19 will drive the hook 18 to move upward until the separating lever 19 reaches the highest point of the guide slope 20. The left transmission arm 11 returns to the upper side of the first drag lever 14. The rotation direction of the threaded rod 12 remains unchanged, and the sleeve 13 continues to move to the left. This allows the second drag lever 15 to provide a leftward thrust to the hook 18 on the right transmission arm 11, thus completing the process of the human body flipping to the right. The working process of the right transmission component is similar to that of the left transmission component, except that the flipping direction is opposite, and the height of the guide slope 20 on this side gradually decreases from right to left. This will not be described in detail here.

[0063] In this embodiment, the assisted turning care bed also includes a support plate 21 and a telescopic device. The support plate 21 is mounted on the bed frame 23, and a support plate 24 is mounted on the bed frame 23. The support plate 24 is located at the end of the support plate 21 away from the bed frame 23, and the support plate 24 abuts against the support plate 21. One end of the main bed board 1 is hinged to the end of the support plate 21 away from the support plate 24. The hinge axis of the main bed board 1 and the support plate 21 is perpendicular to the line connecting the main bed board 1 and the support plate 21. The telescopic device is used to drive the end of the main bed board 1 away from the support plate 21 to rotate around the hinge center of the main bed board 1 and the support plate 21 to assist the human body in sitting up or lying flat. In use, the bed frame 23 provides support for the support plate 21, allowing the support plate 21 to remain flush with the main bed board 1. The output end of the telescopic device is hinged to the position of the main bed board 1 away from the support plate 21, with the hinge center parallel to the line connecting the two auxiliary bed boards 2. The telescopic device is also hinged to the ground or the bed frame 23, with the hinge center parallel to the line connecting the two auxiliary bed boards 2. By extending and retracting, the telescopic device can drive the end of the main bed board 1 away from the support plate 21 to flip up or down. At this time, the support plate 24 can provide support for the support plate 21, preventing the support plate 21 from sliding away from the main bed board 1, thus assisting the patient in sitting up or lying down. Furthermore, since the hinge axis between the main bed board 1 and the support plate 21 is perpendicular to the line connecting the main bed board 1 and the support plate 21, the support plate 21 can flip up simultaneously when the main bed board 1 is flipped up.

[0064] Preferably, the telescopic device is a telescopic cylinder, which is not shown in the figure.

[0065] In this embodiment, in order to meet the use of the assisted turning care bed, the assisted turning care bed also includes two auxiliary plates 27. The two auxiliary plates 27 are arranged on both sides of the support plate 21 along the line connecting the main bed board 1 and the support plate 21. Both auxiliary plates 27 are hinged to the support plate 21. The hinge axis between the auxiliary plates 27 and the support plate 21 is parallel to the line connecting the auxiliary plates 27 and the support plate 21. The two auxiliary plates 27 can be turned up synchronously with the support plate 21 when the corresponding side of the support plate 21 is turned up.

[0066] In this embodiment, the assisted turning care bed also includes a leg lift plate 22 and a drive assembly. The leg lift plate 22 is located on the side of the support plate 24 away from the main bed board 1, and the end of the leg lift plate 22 near the support plate 21 is rotatably connected to the bed frame 23.

[0067] Preferably, the leg-raising and lowering board 22 is a straight board, and the driving component is a telescopic cylinder. The output end of the telescopic cylinder is hinged to the position of the leg-raising and lowering board 22 away from the main bed board 1, and the center of this hinge is parallel to the line connecting the two auxiliary bed boards 2. The telescopic cylinder is hinged to the ground or the bed frame 23, and the center of this hinge is parallel to the line connecting the two auxiliary bed boards 2. The telescopic cylinder can drive the end of the leg-raising and lowering board 22 away from the main bed board 1 to flip up or down by extending and retracting, so as to assist the patient in bending or straightening their lower leg. The driving component is not shown in the figure.

[0068] It is understandable that bending the lower leg includes the downward flipping of the leg-lifting board 22, that is, the patient's foot falls, causing the lower leg to bend relative to the thigh and / or body, and also includes the upward flipping of the leg-lifting board 22, that is, the patient's foot is lifted up, causing the lower leg to bend relative to the thigh and / or body.

[0069] More preferably, the leg-raising board 22 includes a first sub-board 28 and a second sub-board 29 hinged together. The first sub-board 28 is disposed near the support plate 21, and one end of the first sub-board 28 near the support plate 21 is rotatably connected to the bed frame 23. The drive assembly can drive the first sub-board 28 to rotate about the rotation axis of the first sub-board 28 and the bed frame 23. At the same time, the second sub-board 29 moves horizontally following the end of the first sub-board 28 away from the support plate 21. During this process, the patient's lower leg can rest on the first sub-board 28, and the patient's foot can step on the second sub-board 29. This is prior art and will not be described in detail. The drive assembly is not shown in the figure.

[0070] In this embodiment, the angular velocity of the main bed board 1 and the angular velocity of the auxiliary bed board 2 can be adjusted by adjusting the length ratio of the first drive arm 3 and the second drive arm 4, as well as the curvature of the concave section 6 and the curvature of the convex section 7.

[0071] Preferably, the angular velocity of the main bed board 1 is less than the angular velocity of the auxiliary bed board 2.

[0072] In this embodiment, the critical angle ranges from 15° to 30°. Preferably, the critical angle is 20°.

[0073] In this embodiment, the receiving angle ranges from 45° to 60°. Preferably, the receiving angle is 50°.

[0074] It is understandable that the assisted turning care bed also includes a bed frame 23, which is the foundation of the assisted turning care bed and is used to support other structures that make up the assisted turning care bed. The bed frame 23 is existing technology and will not be explained in detail here.

[0075] In this embodiment, the outer edge of the bed frame 23 has protrusions for accommodating the main bed board 1 and the auxiliary bed board 2 to slide horizontally.

[0076] In this embodiment, before the arc-shaped drive unit 5 separates from the arc-shaped convex section 7, the main bed board 1 has not yet reached 90°. Under normal circumstances, the patient can reach a 90° position at this time. If the patient has not reached 90° at this time, the first drive arm 3 can continue to rotate in the original direction to push the main bed board 1 to continue rotating until the patient's position reaches 90°. At this time, the arc-shaped drive unit 5 separates from the arc-shaped convex section 7, and the auxiliary bed board 2 is in a horizontal state. Under the restriction of the auxiliary bed board 2, the second drive arm 4 will not move, that is, the arc-shaped convex section 7 will remain in the position separated from the arc-shaped drive unit 5. When the arc-shaped drive unit 5 moves in the opposite direction along the original route, it can still re-abut against the arc-shaped convex section 7. That is, the auxiliary turning nursing bed can ensure that the patient can turn over to 90°.

[0077] In this embodiment, the first drive arm 3 and the second drive arm 4 are spaced apart along the line connecting the main bed board 1 and the support plate 21 to prevent the first drive arm 3 and the second drive arm 4 from interfering with each other during rotation. The arc-shaped drive part 5 has a certain length along this direction to enable the second drive arm 4 to rotate through the first drive arm 3.

[0078] In this embodiment, the main bed board 1 and the auxiliary bed board 2, the main bed board 1 and the support plate 21, the support plate 21 and the auxiliary plate 27, the leg lift plate 22 and the bed frame 23, the first auxiliary plate 28 and the second auxiliary plate 29 are all rotatably connected by the above-mentioned rotating components.

[0079] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A turn-assist care bed, characterized in that, include: The main bed board (1) includes a first hinge end; A secondary bed board (2) includes a second hinge end, which is hinged to the first hinge end. The drive device includes a first drive unit and a second drive unit. The first drive unit is used to move the free end of the main bed board (1) along a first motion trajectory and a second motion trajectory. The first motion trajectory can cause the human body to flip from a supine angle to a critical angle, and the second motion trajectory can cause the human body to flip from a critical angle to a side-lying angle. The second drive unit is used to move the free end of the auxiliary bed board (2) along a third motion trajectory and a fourth motion trajectory. The third motion trajectory can cause the auxiliary bed board (2) to flip from a horizontal angle to a receiving angle, and the fourth motion trajectory can cause the auxiliary bed board (2) to flip from a receiving angle back to a horizontal angle. The first motion trajectory and the third motion trajectory are generated synchronously, and the second motion trajectory and the fourth motion trajectory are generated synchronously.

2. The assisted turning bed of claim 1, wherein, The driving device includes a transmission assembly and a power unit. The transmission assembly includes a first driving arm (3) and a second driving arm (4). The middle part of the first driving arm (3) is rotatably mounted on the lower side of the main bed board (1). The first driving arm (3) includes a first driving end and a second driving end. The power unit drives the first driving arm (3) to rotate. The first driving end is used to push the main bed board (1) to rotate along the first motion trajectory and the second motion trajectory. The second driving end is provided with an arc-shaped driving part (5). The middle part of the second driving arm (4) is rotatably mounted on the lower side of the auxiliary bed board (2). The second driving arm (4) includes a third driving end and a fourth driving end. The third driving end is used for... The auxiliary bed plate (2) is pushed to move along the third and fourth motion trajectories. The fourth driving end is used to support the arc-shaped driving part (5). The fourth driving end includes an arc-shaped concave section (6) and an arc-shaped convex section (7). The arc-shaped concave section (6) is located between the third driving end and the arc-shaped convex section (7). The arc-shaped concave section (6) and the arc-shaped convex section (7) are both located on the downward rotation trajectory of the arc-shaped driving part (5). When the auxiliary bed plate (2) is on the third motion trajectory, the arc-shaped driving part (5) is located on the arc-shaped concave section (6). When the auxiliary bed plate (2) is on the fourth motion trajectory, the arc-shaped driving part (5) is located on the arc-shaped convex section (7).

3. The assisted turning bed of claim 2, wherein, The main bed board (1) also includes a third hinge end, which is located on the side of the main bed board (1) away from the first hinge end. There are two auxiliary bed boards (2), and the second hinge end of the other auxiliary bed board (2) is hinged to the third hinge end.

4. The assisted turning bed of claim 3, wherein, It also includes a rotating assembly and baffles (8). The rotating assembly includes at least two bushings (9) and a rotating shaft (10). The bushings (9) are rotatably mounted on the rotating shaft (10). The main bed board (1) and the auxiliary bed board (2) are respectively connected to the bushings (9) on the same rotating shaft (10). At least one baffle (8) is provided on each of the radial sides of the rotating assembly. The baffles (8) are connected to the bed frame (23) that supports the main bed board (1) and the auxiliary bed board (2).

5. The assisted turning bed of claim 3, wherein, The transmission assembly further includes a transmission arm (11), the first end of which is rotatably connected to the first drive arm (3) along a first rotation axis, and the second end of which is rotatably connected to the power device along a second rotation axis. Both the first rotation axis and the second rotation axis are parallel to the rotation axis of the middle part of the first drive arm (3). The power device is used to drive the first drive arm (3) to rotate through the transmission arm (11).

6. The assisted turning bed of claim 5, wherein, The power unit includes a threaded rod (12), a sleeve (13), and a limiting structure. The inner wall of the sleeve (13) is provided with an internal thread that matches the threaded rod (12). A first drag rod (14) is provided radially on the sleeve (13). The axis of the first drag rod (14) is parallel to the first rotation axis. The second end of the transmission arm (11) is connected to the first drag rod (14). The limiting structure is used to prevent the sleeve (13) from rotating. The threaded rod (12) is used to drive the sleeve (13) to generate horizontal displacement.

7. The assisted turning bed of claim 6, wherein, The sleeve (13) is also provided with a second drag rod (15), which is coaxially arranged with the first drag rod (14). The transmission assembly is provided in two sets. Along the axial direction of the second drag rod (15), the two sets of transmission assemblies are respectively arranged on both sides of the sleeve (13). Along the line connecting the two auxiliary bed boards (2), the two sets of transmission assemblies are arranged in opposite directions. The second ends of the two transmission arms (11) in the two sets of transmission assemblies are detachably connected to the first drag rod (14) and the second drag rod (15) respectively. One set of transmission assemblies is used to drive the main bed board (1) and one auxiliary bed board (2) to flip over, and the other set of transmission assemblies is used to drive the main bed board (1) and another auxiliary bed board (2) to flip over.

8. The assisted turning bed of claim 7, wherein, The limiting structure includes a limiting plate (16) and a limiting post (17). The limiting plate (16) is arranged along the line connecting the two auxiliary bed plates (2), and the two limiting plates (16) are spaced apart along the line perpendicular to the line connecting the two auxiliary bed plates (2). The limiting post (17) is installed on the sleeve (13), and one end of the limiting post (17) away from the sleeve (13) extends between the two limiting plates (16). The first drag rod (14) and the second drag rod (15) are both located on the lower side of the limiting plate (16). The second end of the transmission arm (11) is provided with a hook (18). The fixed end of the hook (18) is connected to the transmission arm (11), and the opening of the hook (18) is facing downward. The free end of the hook (18) extends along the transmission arm (11). The radial extension extends to the outside of the transmission arm (11). The hooks (18) on the two transmission arms (11) are respectively matched with the first drag rod (14) and the second drag rod (15). The transmission arm (11) is located outside the two limiting plates (16). The second end of the transmission arm (11) is provided with a separation rod (19). The separation rod (19) extends towards the limiting plate (16). The lower side of the limiting plate (16) is provided with a guide slope (20). The guide slope (20) slides with the separation rod (19). The guide slope (20) is used to guide the separation rod (19) to move up and down. The height of the guide slope (20) in the vertical direction is less than the size of the free end of the hook (18) extending to the lower side of the transmission arm (11).

9. The assisted turning bed of claim 1, wherein, It also includes a support plate (21) and a telescopic device. The support plate (21) is set on the bed frame (23). The bed frame (23) is provided with a support plate (24). The support plate (24) is located at the end of the support plate (21) away from the bed frame (23). The support plate (24) abuts against the support plate (21). One end of the main bed board (1) is hinged to the end of the support plate (21) away from the support plate (24). The telescopic device is used to drive the end of the main bed board (1) away from the support plate (21) to rotate around the hinge center of the main bed board (1) and the support plate (21) to assist the human body in sitting up or lying down.

10. The assisted turning bed of claim 9, wherein, It also includes a leg lift board (22) and a drive assembly. The leg lift board (22) is located on the side of the support plate (24) away from the main bed board (1). The end of the leg lift board (22) near the support plate (21) is rotatably connected to the bed frame (23). The drive assembly is used to drive the leg lift board (22) to assist the patient in bending or straightening their lower legs.

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