Device for turning over in bed

Abstract

The present invention relates to a device for turning over in bed, comprising a frame, a turning support plate, a first drive mechanism, and a second drive mechanism, wherein the turning support plate and the frame are connected via several first swing arms and several second swing arms, the first end of each first swing arm is hinged to the left side of the frame, the second end of each first swing arm is hinged to the right side of the turning support plate, the first end of each second swing arm is hinged to the right side of the frame, and the second end of each second swing arm is hinged to the left side of the turning support plate, the first drive mechanism is power-transmittable to the first swing arm and is used to drive the first swing arm to rotate around a hinge axis with the frame, and the second drive mechanism is power-transmittable to the second swing arm and is used to drive the second swing arm to rotate around a hinge axis with the frame. The turning-over device according to the present invention does not require manual modification of the connection structure of the turning-over device during the process of switching between turning over in a first direction and turning over in a second direction, making it easy to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and specifically to a device for turning over.

Background Art

[0002] Some bedridden patients are unable to turn over on their own for a long time. This not only makes them feel unwell but also easily leads to the occurrence of bedsores and other diseases. In this case, it is essential to provide care for the patients to turn them over. Manually turning over a patient takes time and effort, and the process is not only complicated. When the patient is overweight or needs to turn over all parts of the body simultaneously, multiple caregivers need to cooperate to complete it. Some commercially available care beds can achieve the so-called turning-over function, but there are also obvious drawbacks.

[0003] The turning-over mechanism of the care bed disclosed in the Chinese patent application with the publication number CN105476775A realizes turning over by driving and reversing the left or right bed board. The rotation axis of the bed board is at the middle position of the whole bed. Since the bedridden patient lies in the center of the normal bed, when the bed board is reversed, instead of reversing the whole patient, only the left or right half of the patient's body is reversed. As a result, the patient's body is likely to be strongly compressed, and the body may be accidentally moved, making it extremely likely that the patient cannot be turned over.

[0004] The multifunctional care bed disclosed in the Chinese patent with the publication number CN103211689B has a seat frame that can be tilted to the left or right with respect to the housing as a whole. However, both the left and right sides of the seat frame are connected to the housing by positioning pins. When the electric push rod pushes the seat frame to tilt to the left, it is necessary to manually remove the positioning pin connected between the right side of the seat frame and the right side of the housing so that the seat frame can be reversed to the left with respect to the housing, which is inconvenient to operate.

[0005] As described above, designing a device for turning over in bed that can protect the patient's body from strong pressure and quickly enable the patient to turn from side to side is a technical challenge that should be addressed by those skilled in the art. [Overview of the Initiative]

[0006] In contrast to the shortcomings of the prior art, the problem that the present invention aims to solve is to provide a turning-over device that combines the function of turning over in two directions with the function of turning over in two directions, and that is easy to operate.

[0007] To solve the above technical problems, the present invention provides a device for turning over in bed, comprising a frame, a turning support plate, a first drive mechanism, and a second drive mechanism, wherein the turning support plate and the frame are connected via several first swing arms and several second swing arms, the first end of the first swing arm is hinged to the left side of the frame, the second end of the first swing arm is hinged to the right side of the turning support plate, the first end of the second swing arm is hinged to the right side of the frame, and the second end of the second swing arm is hinged to the turning support plate. The present invention provides a device for turning over in bed, wherein the left side is hinged to the first drive mechanism, the first drive mechanism is power-transmitted to the first swing arm and is used to drive the first swing arm to rotate around the hinge axis with the frame, thereby switching the turning-over support plate between its closed state and a first open state; and the second drive mechanism is power-transmitted to the second swing arm and is used to drive the second swing arm to rotate around the hinge axis with the frame, thereby switching the turning-over support plate between its closed state and a second open state.

[0008] In this invention, when the first drive mechanism is activated, the first swing arm rotates around a hinge axis with the left side of the frame, and at the same time, the second end of the first swing arm is hinged to the right side of the turning support plate. As the first swing arm rotates, it synchronously rotates the turning support plate from its closed state to its first open state, causing the patient to turn over in the first direction. During this process, the left side of the turning support plate is hinged to the second end of the second swing arm, so the second swing arm is not affected by the rotation of the turning support plate. When the second drive mechanism is activated, the second swing arm rotates around a hinge axis with the right side of the frame, and at the same time, the second end of the second swing arm is hinged to the left side of the turning support plate. As the second swing arm rotates, it synchronously rotates the turning support plate from its closed state to its second open state, causing the patient to turn over in the second direction. In this process, the right side of the turning support plate is hinged to the second end of the first swing arm, so the first swing arm is not affected by the rotation of the turning support plate. From this, it can be seen that the turning support plate according to the present invention can have the function of turning over in two directions, and because the turning support plate is an integrated design, the patient does not experience strong pressure during the turning process. Furthermore, it can be seen that the turning device according to the present invention does not require manual modification of the connection structure of the turning device when switching between turning over in the first direction and turning over in the second direction, making it easy to operate.

[0009] Preferably, both the first drive mechanism and the second drive mechanism include a drive member and a power supply device, the lower part of the drive member being hinged to the frame, the power supply device being power-transmittable to the drive member and driving the drive member to rotate around a hinge axis with the frame, the upper part of the drive member of the first drive mechanism being power-transmittable to the first swing arm, and the upper part of the drive member of the second drive mechanism being power-transmittable to the second swing arm.

[0010] Preferably, the drive member includes a rotating shaft that is rotatably fitted to the frame, and several drive arms are non-rotatably fitted to the rotating shaft, and in the first drive mechanism, several of the drive arms are connected in a one-to-one correspondence with several of the first swing arms, and in the second drive mechanism, several of the drive arms are connected in a one-to-one correspondence with several of the second swing arms.

[0011] Preferably, the drive member further includes a link, the end of the drive arm away from the axis of rotation being hinged to the link, the end of the link away from the drive arm being hinged to the corresponding first swing arm in the first drive mechanism, and the end of the link away from the drive arm being hinged to the corresponding second swing arm in the second drive mechanism.

[0012] Preferably, the power supply device includes a telescopic cylinder and a transmission member, wherein the cylinder end of the telescopic cylinder is hinged to the frame, the cylinder rod end of the telescopic cylinder is hinged to the transmission member, and one end of the transmission member away from the telescopic cylinder is non-rotatably connected to the corresponding rotating shaft.

[0013] Preferably, in the first drive mechanism, the cylinder rod end of the telescopic cylinder faces the left side of the frame, and in the second drive mechanism, the cylinder rod end of the telescopic cylinder faces the right side of the frame.

[0014] Preferably, the frame is provided with a first limit member and a second limit member, and when the first limit member contacts the first swing arm, the first swing arm is in its initial position, and when the second limit member contacts the second swing arm, the second swing arm is in its initial position, and when both the first and second swing arms are in their respective initial positions, the reversing support plate is in its closed state, and when the reversing support plate is in its closed state, the hinge axis of the first swing arm and the frame is coaxial with the hinge axis of the second swing arm and the reversing support plate, and the hinge axis of the first swing arm and the reversing support plate is coaxial with the hinge axis of the second swing arm and the frame.

[0015] Preferably, both the first limit member and the second limit member are limit switches.

[0016] Preferably, the first limit member is positioned close to the right side of the frame, and the second limit member is positioned close to the left side of the frame. [Brief explanation of the drawing]

[0017] To more clearly describe specific embodiments of the present invention or technical solutions in the prior art, the drawings that may be used in the description of specific embodiments or the prior art are briefly described below. In all drawings, similar elements or parts are generally indicated by the same reference numerals. In the drawings, each element or part is not necessarily depicted in actual proportions.

[0018] [Figure 1] This is a schematic diagram showing the structure of a sleep-turning device according to an embodiment of the present invention in a closed state. [Figure 2] This is a schematic diagram showing the structure of a sleep-turning support plate according to an embodiment of the present invention in a first open state. [Figure 3]Figure 2 is a schematic diagram showing the connection structure of the first drive mechanism, the second drive mechanism, the first swing arm, and the second swing arm. [Figure 4] This is a schematic diagram of the structure of a support plate for turning over in bed according to an embodiment of the present invention. [Figure 5] This is a schematic diagram of the structure of a frame according to an embodiment of the present invention. [Modes for carrying out the invention]

[0019] The following examples of the technical solutions of the present invention will be described in detail with reference to the drawings. The following examples are provided solely to illustrate the technical solutions of the present invention more clearly and are used only as examples; they do not limit the scope of protection of the present invention.

[0020] Unless otherwise specified, technical or scientific terms used in this application should have their ordinary meanings as understood by those skilled in the art.

[0021] As shown in Figures 1, 2, 3, 4, and 5, this embodiment provides a device for turning over in bed, which includes a frame 1, a turning support plate 2, a first drive mechanism 3, and a second drive mechanism 4.

[0022] The turning support plate 2 and the frame 1 are connected via two first swing arms 5 and two second swing arms 6. The first end of each first swing arm 5 is hinged to the left side of the frame 1, and the second end of each first swing arm 5 is hinged to the right side of the turning support plate 2. The first end of each second swing arm 6 is hinged to the right side of the frame 1, and the second end of each second swing arm 6 is hinged to the left side of the turning support plate 2.

[0023] The above-described first drive mechanism 3 is connected to the first swing arm 5 so as to be capable of power transmission, and drives the first swing arm 5 to rotate about the hinge axis with the frame 1, and is used to switch the turning-over receiving plate 2 between its closed state and the first open state. The above-described second drive mechanism 4 is connected to the second swing arm 6 so as to be capable of power transmission, and drives the second swing arm 6 to rotate about the hinge axis with the frame 1, and is used to switch the turning-over receiving plate 2 between its closed state and the second open state.

[0024] In order for the turning-over receiving plate 2 to rotate smoothly and easily, in this embodiment, when the turning-over receiving plate 2 is in its closed state, the hinge axis of the first swing arm 5 and the frame 1 is coaxial with the hinge axis of the second swing arm 6 and the turning-over receiving plate 2, and the hinge axis of the first swing arm 5 and the turning-over receiving plate 2 is coaxial with the hinge axis of the second swing arm 6 and the frame 1. Note that the closed state of the turning-over receiving plate 2 referred to in this embodiment is an ideal closed state. In actuality, due to the possibility of a slight deviation occurring between the closed state of the turning-over receiving plate 2 and the ideal closed state, a certain deviation occurs between the hinge axis of the first swing arm 5 and the frame 1 and the hinge axis of the second swing arm 6 and the turning-over receiving plate 2, and a certain deviation occurs between the hinge axis of the first swing arm 5 and the turning-over receiving plate 2 and the hinge axis of the second swing arm 6 and the frame 1. Therefore, when the turning-over receiving plate 2 is in the closed state, there is a slight deviation between the hinge axis of the first swing arm 5 and the frame 1 and the hinge axis of the second swing arm 6 and the turning-over receiving plate 2, and there is a slight deviation between the hinge axis of the first swing arm 5 and the turning-over receiving plate 2 and the hinge axis of the second swing arm 6 and the frame 1, which should also fall within the protection scope of the present application.

[0025] In this embodiment, when the first driving mechanism 3 operates, the first swing arm 5 rotates about the hinge axis with the left side of the frame. At the same time, the second end of the first swing arm 5 is hingedly connected to the right side of the turning-over receiving plate 2. Therefore, in the process of the rotation of the first swing arm 5, the turning-over receiving plate 2 is synchronously rotated from its closed state to the first open state (see FIG. 2), causing the patient to turn over in the first direction. In this process, since the left side of the turning-over receiving plate 2 is hingedly connected to the second end of the second swing arm 6, the second swing arm 6 is not affected by the rotation of the turning-over receiving plate 2. When the second driving mechanism 4 operates, the second swing arm 6 rotates about the hinge axis with the right side of the frame 1. At the same time, the second end of the second swing arm 6 is hingedly connected to the left side of the turning-over receiving plate 2. Therefore, in the process of the rotation of the second swing arm 6, the turning-over receiving plate 2 is synchronously rotated from its closed state to its second open state, causing the patient to turn over in the second direction. In this process, since the right side of the turning-over receiving plate 2 is hingedly connected to the second end of the first swing arm 5, the first swing arm 5 is not affected by the rotation of the turning-over receiving plate 2.

[0026] Note that during use, the patient lies on the turning-over device according to this embodiment. Since the turning-over receiving plate 2 has an integrated design, the patient will not receive strong compression during the process of turning over. Specifically, in order for the patient to turn over more smoothly, the turning-over device according to this embodiment can use two devices respectively arranged on the back and the buttocks simultaneously. When installing, it can be used in accordance with a normal bed. By providing a storage chamber at the middle position of the normal bed body and installing the turning-over device, the normal hospital bed can be provided with a turning-over function.

[0027] Furthermore, the first driving mechanism 3 includes a first driving member and a first power supply device. The lower part of the first driving member is hingedly connected to the frame 1, and the first power supply device is connected to the first driving member in a power-transmissible manner to drive the first driving member to rotate about the hinge axis with the frame 1. The upper part of the first driving member is connected to the first swing arm 5 in a power-transmissible manner.

[0028] The first drive member includes a first rotating shaft 31, a first drive arm 32, and a first link 33. The first rotating shaft 31 is located at the bottom of the first drive member and is rotatably fitted to the frame 1. Two first drive arms 32 are non-rotatably fitted to the first rotating shaft 31. The first link 33 is hinged to one end of each of the two first drive arms 32 away from the first rotating shaft 31, and the other end of the first link 33 away from the first drive arm 32 is hinged to the corresponding first swing arm 5.

[0029] The first power supply device described above includes a first telescopic cylinder 34 and a first transmission member 35, wherein the cylinder end of the first telescopic cylinder 34 is hinged to the frame 1, the cylinder rod end of the first telescopic cylinder 34 is hinged to the first transmission member 35, and one end of the first transmission member 35 away from the first telescopic cylinder 34 is non-rotatably connected to the first rotating shaft 31.

[0030] When the first drive mechanism 3 is activated, the cylinder rod end of the first telescopic cylinder 34 retracts, causing the first transmission member 35 to rotate by a corresponding angle. Since the first transmission member 35 and the first rotating shaft 31 are connected in a way that prevents rotation, the first rotating shaft 31 is driven by the first transmission member 35 and rotates synchronously by a corresponding angle. The two first drive arms 32, which are also connected in a way that prevents rotation of the first rotating shaft 31, are also driven synchronously and rotate by a corresponding angle, causing the first swing arm 5 to rotate and open via the first link 33, and further causing the turning support plate 2 to turn the patient in the second direction.

[0031] In this embodiment, the structural principles of the second drive mechanism 4 and the first drive mechanism 3 are the same, and the only difference is the mounting position.

[0032] The second drive mechanism 4 also includes a second drive member and a second power supply device. The lower part of the second drive member is hinged to the frame 1, and the second power supply device is power-transmittingly connected to the second drive member, driving the second drive member to rotate around the hinge axis with the frame 1. The upper part of the second drive member is power-transmittingly connected to the second swing arm 6.

[0033] The second drive member includes a second rotating shaft 41, a second drive arm 42, and a second link 43. The second rotating shaft 41 is located at the bottom of the second drive member and is rotatably fitted to the frame 1. Two second drive arms 42 are non-rotatably fitted to the second rotating shaft 41. The second link 43 is hinged to one end of each of the two second drive arms 42 away from the second rotating shaft 41, and the other end of the second link 43 away from the second drive arm 42 is hinged to the corresponding second swing arm 6.

[0034] The second power supply device described above includes a second telescopic cylinder 44 and a second transmission member 45, wherein the cylinder end of the second telescopic cylinder 44 is hinged to the frame 1, the cylinder rod end of the second telescopic cylinder 44 is hinged to the second transmission member 45, and one end of the second transmission member 45 away from the second telescopic cylinder 44 is non-rotatably connected to the second rotating shaft 41.

[0035] When the second drive mechanism 4 is activated, the cylinder rod end of the second telescopic cylinder 44 retracts, causing the second transmission member 45 to rotate by the corresponding angle. Since the second transmission member 45 and the second rotating shaft 41 are connected in a way that prevents rotation, the second rotating shaft 41 is driven by the second transmission member 45 and rotates synchronously by the corresponding angle. The two second drive arms 42, which are also connected in a way that prevents rotation of the second rotating shaft 41, are also driven synchronously and rotate by the corresponding angle, causing the second swing arm 6 to rotate and open via the second link 43, and further causing the turning support plate 2 to turn the patient in the second direction.

[0036] In this embodiment, the first telescopic cylinder 34 and the second telescopic cylinder 44 are electrically operated telescopic cylinders. The first transmission member 35 and the first drive arm 32 are both fitted to the first rotating shaft 31 by welding, thereby preventing rotation, and the second transmission member 45 and the second drive arm 42 are both fitted to the second rotating shaft 41 by welding, thereby preventing rotation. In practice, it is also possible to use other connection structures for the first drive arm 32 and the first rotating shaft 31, and for the second drive arm 42 and the second rotating shaft 41. It is sufficient to achieve synchronous rotation of the first drive arm 32 and the first rotating shaft 31, and synchronous rotation of the second drive arm 42 and the second rotating shaft 41. For example, it is possible to design the inner bore of the first drive arm 32 (second drive arm 42) as a square bore, and design a square shaft segment that fits the square bore for the first rotating shaft 31 (second rotating shaft 41). Furthermore, the first transmission member 35 (second transmission member 45) can also be designed to be fixedly connected to one of the first drive arms 32 (second drive arm 42). When the first transmission member 35 (second transmission member 45) rotates, it can be driven to rotate around the first rotation axis 31 (second rotation axis 42) via the corresponding first drive arm 32 (second drive arm 42), and further driven to rotate around the other first drive arm 32 (second drive arm 42).

[0037] In this embodiment, the first swing arm 5 and the second swing arm 6 are designed with a first relief groove 51 and a second relief groove (not shown), respectively, so that the first link 33 and the second link 43 can smoothly drive and move the first swing arm 5 and the second swing arm 6, providing sufficient space for the oscillation of the first link 33 and the second link 43.

[0038] In practice, the first link 33 and the second link 43 can be omitted, and sliding grooves can be directly provided on the first swing arm 5 and the second swing arm 6, with one end of the first drive arm 32 (second drive arm 43) away from the first rotation axis 31 (second rotation axis 41) slidably connected to the sliding groove. For example, a pulley that fits into the sliding groove can be provided on the first drive arm 32 (second drive arm 43), thereby driving and moving the first swing arm 5 (second swing arm 6).

[0039] In this embodiment, both the first swing arm 5 and the second swing arm 6 are provided in pairs, but in practice, they can be designed to have one or more as needed.

[0040] Referring to Figures 1 and 3, the mounting directions of the first telescopic cylinder 34 and the second telescopic cylinder 44 in this embodiment are different. The cylinder rod end of the first telescopic cylinder 34 faces the left side of the frame 1, and the cylinder rod end of the second telescopic cylinder 44 faces the right side of the frame 1. By adopting these mounting directions, the first drive mechanism 3 and the second drive mechanism 4 drive the turning support plate 2 to rotate it from the closed state to the first open state and the second open state, respectively, thereby enabling the patient to turn over to the left and right.

[0041] Furthermore, the frame 1 is provided with two first limit members 11 and two second limit members 12, both of which are limit switches. The first limit members 11 are positioned close to the right side of the frame 1, and the second limit members 12 are positioned close to the left side of the frame 1. The first limit members 11 and the second limit members 12 are used to regulate the initial positions of the first swing arm 5 and the second swing arm 6, respectively. When the first limit member 11 contacts the first swing arm 5, the first swing arm 5 is in its initial position, and when the second limit member 12 contacts the second swing arm 6, the second swing arm 6 is in its initial position. When both the first swing arm 5 and the second swing arm 6 are in their respective initial positions, the turning support plate 2 is in the closed state. In this case, the hinge axis of the first swing arm 5 and the frame 1 is coaxial with the hinge axis of the second swing arm 6 and the turning support plate 2, and the hinge axis of the first swing arm 5 and the turning support plate 2 is coaxial with the hinge axis of the second swing arm 6 and the frame 1, which allows the turning support plate 2 to rotate more smoothly and eliminates resistance.

[0042] Referring to Figure 4, the bottom of the turning support plate 2 according to this embodiment is provided with two first beams 21 that are hinged to the first swing arm 5, and two second beams 22 that are hinged to the second swing arm 6. A hinge hole for hinged connection to the first swing arm 5 is provided on the right side of the first beam 21, and a hinge hole for hinged connection to the second swing arm 6 is provided on the left side of the second beam 22.

[0043] Referring to Figure 5, six support plates are fixedly connected to the frame 1 in this embodiment, and the six support plates form two first passages 13 and two second passages 14 in the frame 1. The two first limit members 11 are each mounted in the two first passages 13, and the two second limit members 12 are each mounted in the two second passages 14. In particular, when the turning support plate 2 is in the closed state, the first beam 21, the first drive arm 32, the first link 33 and the first swing arm 5 are located in the corresponding first passages 13, and the second beam 22, the second drive arm 42, the second link 43 and the second swing arm 6 are located in the corresponding second passages 14.

[0044] The specification of this invention describes many specific details. However, it is understood that embodiments of the invention can be carried out without these specific details. In some embodiments, known methods, systems, and techniques are not described in detail in order to avoid ambiguity in understanding this specification.

[0045] In this specification, when a description refers to terms such as “one embodiment,” “several embodiments,” “example,” “specific example,” or “several examples,” it means that the specific features, systems, materials, or properties described in relation to that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the general expressions of the above terms do not necessarily refer to the same embodiment or example. The specific features, systems, materials, or properties described may be combined as appropriate in any one or more embodiments or examples. Notwithstanding the fact that they do not conflict with each other, a person skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described herein.

[0046] Finally, the above embodiments are merely for illustrating, and not limiting, the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, it is still possible to modify the technical solutions described in the above embodiments or to replace some or all of their technical features with equivalents. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and should all be included within the scope of the claims and specification of the present invention, as will be understood by those skilled in the art. [Explanation of Symbols]

[0047] 1 frame 11. First limit member 12. Second limit member 13 1st aisle 14 2nd aisle 2. Support plate for turning over in bed 21. First Beam 22. Second beam 3. First drive mechanism 31. First rotation axis 32 First drive arm 33. Link 1 34. First telescopic cylinder 35 First transmission member 4. Second drive mechanism 41. Second rotation axis 42 Second drive arm 43. Second Link 44. Second Expansion Cylinder 45 Second transmission member 5. First Swing Arm 51 First escape ditch 6. Second swingarm

Claims

1. A device for turning over in bed, comprising a frame, a turning support plate, a first drive mechanism, and a second drive mechanism, The turning support plate and the frame are connected via several first swing arms and several second swing arms, the first end of each first swing arm hinged to the left side of the frame, the second end of each first swing arm hinged to the right side of the turning support plate, the first end of each second swing arm hinged to the right side of the frame, and the second end of each second swing arm hinged to the left side of the turning support plate. The first drive mechanism is connected to the first swing arm in a power-transmitting manner and is used to drive the first swing arm to rotate around the hinge axis with the frame, thereby switching the reversal support plate between its closed state and a first open state. A device for turning over in bed, characterized in that the second drive mechanism is connected to the second swing arm in a power-transmitting manner, and the second swing arm is driven to rotate around a hinge axis with the frame, thereby switching the turning-over receiving plate between a closed state and a second open state.

2. Both the first drive mechanism and the second drive mechanism include a drive member and a power supply device. The lower part of the drive member is hinged to the frame, and the power supply device is connected to the drive member in a power-transmitting manner, driving the drive member to rotate around the hinge axis with the frame. The device for turning over in bed according to claim 1, characterized in that the upper part of the drive member of the first drive mechanism is connected to the first swing arm in a power-transmitting manner, and the upper part of the drive member of the second drive mechanism is connected to the second swing arm in a power-transmitting manner.

3. The drive member includes a rotating shaft that is rotatably fitted to the frame, and several drive arms are non-rotatably fitted to the rotating shaft. In the first drive mechanism, several of the drive arms are connected to several of the first swing arms in a one-to-one correspondence. The device for turning over in bed according to claim 2, characterized in that, in the second drive mechanism, several of the drive arms are connected in a one-to-one correspondence with several of the second swing arms.

4. The drive member further includes a link, and one end of the drive arm away from the axis of rotation is hinged to the link. In the first drive mechanism, one end of the link away from the drive arm is hinged to the corresponding first swing arm. The device for turning over in bed according to claim 3, characterized in that, in the second drive mechanism, one end of the link away from the drive arm is hinge-connected to the corresponding second swing arm.

5. The power supply device includes a telescopic cylinder and a transmission member, wherein the cylinder end of the telescopic cylinder is hinged to the frame, the cylinder rod end of the telescopic cylinder is hinged to the transmission member, and one end of the transmission member away from the telescopic cylinder is non-rotatably connected to the corresponding rotating shaft, as described in claim 3.

6. In the first drive mechanism, the cylinder rod end of the telescopic cylinder faces the left side of the frame. The device for turning over in bed according to claim 5, characterized in that the cylinder rod end of the telescopic cylinder faces the right side of the frame in the second drive mechanism.

7. The frame is provided with a first limit member and a second limit member, and when the first limit member contacts the first swing arm, the first swing arm is in its initial position, and when the second limit member contacts the second swing arm, the second swing arm is in its initial position. When both the first swing arm and the second swing arm are in their respective initial positions, the turning support plate is in its closed state. The device for turning over in bed according to claim 1, characterized in that when the turning-over support plate is in its closed state, the hinge axis of the first swing arm and the frame is coaxial with the hinge axis of the second swing arm and the turning-over support plate, and the hinge axis of the first swing arm and the turning-over support plate is coaxial with the hinge axis of the second swing arm and the frame.

8. The device for turning over in bed according to claim 7, characterized in that both the first limit member and the second limit member are limit switches.

9. The device for turning over in bed according to claim 7, characterized in that the first limit member is positioned close to the right side of the frame, and the second limit member is positioned close to the left side of the frame.

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