Auxiliary turning-over device for nursing and use method of auxiliary turning-over device

By designing a nursing auxiliary turnover device including a nursing bed, a turnover device, a support device and an anti-fall device, the problem of traditional devices requiring manpower operation is solved, and the patient's automatic turnover and safe turnover is achieved, reducing the workload of medical staff.

CN120168246APending Publication Date: 2025-06-20沈琪
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Patent Information

Application Number
CN202510596165.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2025-06-20

AI Technical Summary

Technical Problem

Traditional auxiliary turnover devices require manpower operation, especially for larger patients, it is difficult for a single medical staff to complete the turnover operation alone, resulting in inconvenience and high workload.

Method used

An auxiliary turnover device for nursing is designed, including a care bed, turnover device, support device and anti-fall device. The first motor drives the first screw to rotate, and combines the design of the oblique triangle pad and the connecting rod to realize automatic turnover of the patient. Meanwhile, push rod motor and triangle support block are used for support and anti-fall.

Benefits of technology

It can complete the patient's turnover operation without manual push, reduce the workload and labor intensity of medical staff, and is especially suitable for patients with larger weight. At the same time, the designed anti-fall device improves the safety of the turnover process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an auxiliary turning-over device for nursing and a using method thereof.The auxiliary turning-over device for nursing comprises a nursing bed, the nursing bed is composed of a lower bottom plate, brake universal wheels, supporting columns, an upper bed plate and a bed frame, a pair of turning-over devices are symmetrically arranged on the two sides of the upper portion of the lower bottom plate, a pair of supporting devices are symmetrically arranged below the upper bed plate, and a pair of anti-falling devices are symmetrically arranged on the two sides of the nursing bed; a flexible soft mattress is laid on the upper bed plate; by arranging the inclined triangular pads, the first motor is used for driving the first lead screw to rotate, the first lead screw is meshed with the moving block to drive the moving block and the connecting rods to move, and therefore the inclined triangular pad on one side is lifted through the connecting rods on the two sides, and when the inclined triangular pad is lifted, a patient can turn over towards the other side under the action of arc-shaped operation of the inclined triangular pad; therefore, the patient does not need to be manually pushed to turn over, the operation is more time-saving and labor-saving, and even for a patient with a large cardinal weight, a single medical worker can complete the operation.
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Description

Technical Field

[0001] The present invention relates to the field of medical care, and specifically to an auxiliary turning device for nursing and its usage method. Background Art

[0002] Turning over is an extremely important basic operation in nursing work. For patients who are bedridden for a long time, due to maintaining the same posture for a long time, local tissues of the body will be continuously compressed, resulting in poor blood circulation, and thus may cause serious complications such as pressure sores. Pressure sores not only bring physical pain to patients, but also increase the risk of infection, prolong the recovery time of patients, and increase the medical burden. Therefore, regularly turning over patients is one of the key measures to prevent pressure sores.

[0003] Traditional auxiliary turning devices rely on manual turning. When encountering patients with a relatively heavy weight, it is difficult for medical staff to operate the turning alone. Each time turning over or moving requires multiple nursing staff to complete, which is very inconvenient, brings a large workload to nursing staff, and has a high labor intensity. Therefore, an auxiliary turning device for nursing is needed. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides an auxiliary turning device for nursing and its usage method, which solves the problem that traditional turning devices need to rely on manual operation and it is inconvenient for a single medical staff to operate the turning when the patient has a large body weight base.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention is realized through the following technical solutions: An auxiliary turning device for nursing, including a nursing bed, the nursing bed is composed of a lower bottom plate, brake universal wheels, support columns, an upper bed plate and a bed frame. On both sides above the lower bottom plate, a pair of turning devices are symmetrically arranged. Below the upper bed plate, a pair of support devices are symmetrically arranged. On both sides of the nursing bed, a pair of anti-fall devices are symmetrically arranged. A flexible soft mattress is laid on the upper bed plate;

[0008] Preferably, the turning device includes a pair of first motors, two first lead screws and an inclined triangular pad. The first motors are fixedly installed on the lower bottom plate. The two first lead screws have opposite thread directions. On the two first lead screws, moving blocks are threadedly installed. On the moving blocks, first connecting support blocks are fixedly installed. On the first connecting support blocks, connecting rods are rotatably installed. At the bottom of the inclined triangular pad, a second connecting support block is fixedly installed. One end of the connecting rod away from the first connecting support block is rotatably connected to the second connecting support block.

[0009] Preferably, one of the first lead screws is connected to the output end of the first motor. A support base is installed between the two first lead screws. The support base is fixedly installed on the lower bottom plate. The coupling is rotatably installed in the support base between the two first lead screws.

[0010] Preferably, a support base is installed at one end of the first lead screw not directly connected to the first motor, away from the coupling. The support base is fixedly installed on the lower bottom plate. One end of the first lead screw not directly connected to the first motor is rotatably installed in the support base.

[0011] Preferably, the support device includes a support plate and a fixing frame. The support plate is fixedly installed on the lower bottom plate. A rectangular support block is fixedly installed on the support plate. A groove is formed in the inclined triangular pad. The rectangular support block is slidably installed in the groove.

[0012] Preferably, the number of the fixing frames is two. The fixing frames are fixedly installed on the bed frame. A push rod motor is fixedly installed on the fixing frame. A telescopic push rod is installed on the push rod motor. The output end of the telescopic push rod is fixedly installed with a triangular support block. The triangular support block is slidably installed in the arc-shaped groove on the inclined triangular pad.

[0013] Preferably, the anti-fall device includes side baffles. Groove openings are formed on both sides of the upper bed board. The side baffles are slidably installed in the groove openings. A rack is fixedly installed on the side baffles.

[0014] Preferably, a first toothed belt pulley is fixedly installed on the first lead screw on the side away from the side baffle. A rotating rod is rotatably installed on the fixing frame on the side close to the side baffle. A second toothed belt pulley is fixedly installed on the rotating rod. The same synchronous toothed belt is sleeved on the first toothed belt pulley and the second toothed belt pulley. A gear is fixedly installed on the rotating rod. The gear meshes with the rack.

[0015] Preferably, a limiting slide bar is fixedly installed on the lower bottom plate. The limiting slide bar is slidably installed in the side baffle.

[0016] Preferably, both the first motor and the push rod motor are electrically connected to an external control device.

[0017] A usage method of an auxiliary turning-over device for nursing is as follows:

[0018] S1. The patient lies on the nursing bed. When turning over is needed, operate through the control device to prepare for turning over.

[0019] S2. The control device controls the push rod motor on one side to retract the telescopic push rod. When the telescopic push rod retracts, the triangular support block is withdrawn.

[0020] S3. After the triangular support block is withdrawn, the first motor will operate to drive the first lead screw to rotate. When the first lead screw rotates, it drives the moving block to move. When the moving block moves, it will jack up the inclined triangular pad through the connecting rod. After the inclined triangular pad is jacked up, under the arc-shaped contour of the gradually rising inclined triangular pad, one side of the patient is jacked up by the rising inclined triangular pad and tilted to the other side;

[0021] S4. While the first lead screw rotates, it will drive the first toothed belt wheel to rotate. The first toothed belt wheel drives the second toothed belt wheel and the rotating rod to rotate through the synchronous toothed belt. When the rotating rod rotates, it drives the gear to rotate. When the gear rotates, it meshes with the rack to make the side baffle on the side away from the rising inclined triangular pad rise. The side baffle rises and is suspended on one side to prevent the patient from falling off the bed due to excessive turning angle.

[0022] (III) Beneficial effects

[0023] The present invention provides an auxiliary turning device for nursing and its usage method. It has the following beneficial effects:

[0024] 1. By setting the inclined triangular pad in the present invention, the first motor is used to drive the first lead screw to rotate. The first lead screw drives the moving block and the connecting rod to move by meshing with the moving block. Thus, the inclined triangular pad on one side is lifted by the connecting rods on both sides. When the inclined triangular pad rises, under the action of its arc-shaped operation, the patient will turn over to the other side. Therefore, there is no need to manually push the patient to turn over, and the operation is more time-saving and labor-saving. Even for patients with a large body weight base, a single medical staff can complete the operation.

[0025] 2. By setting the triangular support block and the rectangular support block in the present invention, when the turning device is not in use, the triangular support block and the rectangular support block cooperate with the inclined triangular pad to fill its arc-shaped groove, reducing the groove on the plane where the patient lies, making the patient more comfortable when lying.

[0026] 3. By setting the side baffle to protect the tilted side of the patient in the present invention, when the first lead screw rotates, it will drive the first toothed belt wheel to rotate. The first toothed belt wheel drives the second toothed belt wheel and the rotating rod to rotate through the synchronous toothed belt. The rotating rod drives the gear to mesh with the rack to make the side baffle rise and fall. Thus, when the limiting slide bar on the other side rises, the side baffle on the side away from the rising limiting slide bar can also rise synchronously, making the turning operation safer and more reliable. Description of the drawings

[0027] Figure 1 is the overall three-dimensional structure schematic diagram of the present invention;

[0028] Figure 2 is the structure schematic diagram of the telescopic push rod and the triangular support block and other structures of the present invention;

[0029] Figure 3Schematic diagram of the transverse cross-sectional structure of the present invention;

[0030] Figure 4 Schematic diagram of the longitudinal cross-sectional structure of the present invention;

[0031] Figure 5 Schematic diagram of the structures such as the inclined triangular pad and the side baffle of the present invention;

[0032] Figure 6 Schematic diagram of the structures such as the support plate and the rectangular support block of the present invention;

[0033] Figure 7 Schematic diagram of the structures such as the triangular support block and the rectangular support block of the present invention.

[0034] Among them, 1. Nursing bed; 2. Turning device; 3. Support device; 4. Anti-fall device; 5. Lower bottom plate; 6. Brake universal wheel; 7. Support column; 8. Upper bed plate; 9. Bed frame; 10. Flexible soft mattress; 20. First motor; 21. First lead screw; 22. Moving block; 23. First connecting support block; 24. Support seat; 25. Coupling; 27. Inclined triangular pad; 28. Second connecting support block; 29. Connecting rod; 30. Fixed frame; 31. Push rod motor; 32. Telescopic push rod; 33. Triangular support block; 34. Support plate; 35. Rectangular support block; 40. Side baffle; 41. Rack; 42. First toothed belt pulley; 43. Second toothed belt pulley; 44. Synchronous toothed belt; 45. Rotating rod; 46. Gear; 47. Limit slide bar. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1: As Figures 1-7 shown, the embodiment of the present invention provides an auxiliary turning device for nursing, including a nursing bed. In order to design an auxiliary turning device that allows a single medical staff to turn over a patient with a large body weight, the nursing bed is composed of a lower bottom plate, brake universal wheels, support columns, an upper bed plate and a bed frame. A pair of turning devices are symmetrically arranged on both sides above the lower bottom plate, a pair of support devices are symmetrically arranged below the upper bed plate, a pair of anti-fall devices are symmetrically arranged on both sides of the nursing bed, and a flexible soft mattress is laid on the upper bed plate. The patient is turned over through the turning device, and the support device is used as a support to make the patient lie more comfortably on it when the device is not in use. The anti-fall device protects the patient during turning over to prevent them from falling;

[0037] To achieve the function of turning over, the turning-over device includes a pair of first motors, two first lead screws, and an inclined triangular pad. The first motors are fixedly installed on the lower bottom plate. The two first lead screws have opposite thread directions. Moving blocks are threadedly installed on the two first lead screws. A first connecting support block is fixedly installed on the moving block. A connecting rod is rotatably installed on the first connecting support block. A second connecting support block is fixedly installed at the bottom of the inclined triangular pad. One end of the connecting rod away from the first connecting support block is rotatably connected to the second connecting support block. One of the first lead screws is connected to the output end of the first motor. A support seat is installed between the two first lead screws. The support seat is fixedly installed on the lower bottom plate. A coupling is rotatably installed in the support seat between the two first lead screws. A support seat is installed at one end of the first lead screw not directly connected to the first motor away from the coupling. The support seat is fixedly installed on the lower bottom plate. One end of the first lead screw not directly connected to the first motor is rotatably installed in the support seat. Both the first motor and the push rod motor are electrically connected to an external control device.

[0038] A method for using an auxiliary turning-over device for nursing is as follows:

[0039] S1. The patient lies on the nursing bed. When turning over is needed, operate through the control device to prepare for turning over.

[0040] S2. The control device controls the push rod motor on one side to retract the telescopic push rod. When the telescopic push rod retracts, the triangular support block is pulled out.

[0041] S3. After the triangular support block is pulled out, the first motor works to drive the first lead screw to rotate. When the first lead screw rotates, it drives the moving block to move. When the moving block moves, it will lift the inclined triangular pad through the connecting rod. After the inclined triangular pad is lifted, under the arc contour of the gradually rising inclined triangular pad, one side of the patient is lifted by the rising inclined triangular pad and tilted to the other side.

[0042] S4. When the first lead screw rotates, it will drive the first toothed belt wheel to rotate. The first toothed belt wheel drives the second toothed belt wheel and the rotating rod to rotate through the synchronous toothed belt. When the rotating rod rotates, it drives the gear to rotate. When the gear rotates, it meshes with the rack to make the side baffle on the side away from the rising inclined triangular pad rise. The side baffle rises and is suspended on one side to prevent the patient from falling off the bed due to excessive turning angle.

[0043] During use, the first motor and the push rod motor of this device need to be connected to the control device. The control device can select an MCU controller and cooperate with an operation button (not shown in the figure). Its position can be freely set according to the actual situation. It can be set on the bed body, or it can be set as a separate wireless control button and wirelessly connected to the MCU controller. When turning over the patient is needed, select the turning direction through the button and let the control device drive the electrical components to work.

[0044] During operation, the push rod motor drives the telescopic push rod to retract, separating the triangular support block from the inclined triangular pad. The first motor on one side drives the first lead screw to rotate, and the first motor connected to the first motor drives another first lead screw to rotate through a coupling. When the two first lead screws rotate, they will be threadedly engaged with the moving block. Since the bottom end of the moving block is in parallel contact with the lower bottom plate, the moving block will not generate a rotation direction, and the moving block will translate on the first lead screw under the action of the first lead screw. When the moving block moves from one end to the other end, the distance between the moving block and the inclined triangular pad will gradually shorten. Under the action of the connecting rod, the connecting rod is used to lift the inclined triangular pad. When the inclined triangular pad is lifted, under the action of the arc surface of the inclined triangular pad, one side of the patient's body will be tilted and elevated, and the patient will naturally tilt towards the lower side, thus realizing the function of automatic turning over.

[0045] Embodiment 2:

[0046] As Figure 2 and Figure 7 shown, the embodiment of the present invention provides an auxiliary turning-over device for nursing, which is further expanded according to the content in the specific Embodiment 1:

[0047] In order to make the patient lie more comfortably in bed when the turning-over device is not in use, the support device includes a support plate and a fixing frame. The support plate is fixedly installed on the lower bottom plate, a rectangular support block is fixedly installed on the support plate, a groove is opened on the inclined triangular pad, and the rectangular support block is slidably installed in the groove. The number of fixing frames is two, the fixing frames are fixedly installed on the bed frame, a push rod motor is fixedly installed on the fixing frames, a telescopic push rod is installed on the push rod motor, and a triangular support block is fixedly installed at the output end of the telescopic push rod. The triangular support block is slidably installed in the arc-shaped groove on the inclined triangular pad.

[0048] When the triangular support block coincides with the inclined triangular pad, its overall shape is a rectangle, and its upper surface is a plane. Similarly, when the inclined triangular pad is not in use, it is in a retracted state. At this time, the rectangular support block is flush with the bed surface, and the surface shape of the rectangular support block is also a plane. Through the cooperation of the triangular support block and the rectangular support block, the grooves in the inclined triangular pad and other positions are filled, so that when the patient lies, the force is more evenly distributed.

[0049] Embodiment 3:

[0050] As Figures 1-2 and Figure 4 shown, the embodiment of the present invention provides an auxiliary turning-over device for nursing, which is further expanded according to the content in the specific Embodiment 2:

[0051] To prevent the patient from falling off the bed when turning over, the anti-fall device includes side baffles. There are notches on both sides of the upper bed board, and the side baffles are slidably installed in the notches. A rack is fixedly installed on the side baffle. A first toothed pulley is fixedly installed on the first lead screw on the side away from the side baffle. A rotating rod is rotatably installed on the fixed frame on the side close to the side baffle. A second toothed pulley is fixedly installed on the rotating rod. The first toothed pulley and the second toothed pulley are sleeved with the same synchronous toothed belt. A gear is fixedly installed on the rotating rod, and the gear meshes with the rack. A limiting slide bar is fixedly installed on the lower bottom board, and the limiting slide bar is slidably installed in the side baffle.

[0052] To make the turning-over operation safer, when the first lead screw rotates, the first lead screw will drive the first toothed pulley to rotate. The first toothed pulley drives the second toothed pulley and the rotating rod to rotate through the synchronous toothed belt. The rotating rod drives the gear to mesh with the rack to make the side baffle rise and fall. Thus, when the limiting slide bar on the other side rises, the side baffle on the side away from the rising limiting slide bar can also rise synchronously. After the side baffle rises, it is suspended on the front side of the patient's side body to limit the patient and prevent the patient from turning over too much and falling off the bed, making the turning-over operation safer and more reliable.

[0053] Working principle: The first motor and the push rod motor of this device need to be connected to a control device. The control device can be selected as an MCU controller and cooperate with an operation button (not shown in the figure, and its position can be freely set according to the actual situation. It can be set on the bed body, or it can be set as a separate wireless control button and radio-connected to the MCU controller). When a patient needs to be turned over, select the turning direction through the button and let the control device drive the electrical components to work. During operation, the push rod motor will drive the telescopic push rod to retract, separating the triangular support block from the inclined triangular pad. The first motor on one side will drive the first lead screw to rotate, and the first motor connected to the first motor will drive another first lead screw to rotate through a coupling. When the two first lead screws rotate, they will be thread-engaged with the moving block. Since the bottom end of the moving block is in parallel contact with the lower bottom plate, the moving block will not generate a rotation direction, and the moving block will translate on the first lead screw under the action of the first lead screw. When the moving block moves from one end to the other end, the distance between the moving block and the inclined triangular pad will gradually shorten. Under the action of the connecting rod, the inclined triangular pad will be lifted by the connecting rod. When the inclined triangular pad is lifted, under the action of the arc surface of the inclined triangular pad, one side of the patient's body will be tilted and raised, and the patient will naturally tilt towards the lower side, thus realizing the function of automatic turning over. In order to make the turning-over operation safer, when the first lead screw rotates, the first lead screw will drive the first toothed belt pulley to rotate. The first toothed belt pulley drives the second toothed belt pulley and the rotating rod to rotate through a synchronous toothed belt. The rotating rod drives the gear to engage with the rack, causing the side baffle to rise and fall. Thus, when the limiting slide bar on the other side rises, the side baffle on the side far from the rising limiting slide bar can also rise synchronously. After the side baffle rises, it is suspended on the front side of the patient's side body to limit the patient and prevent the patient from falling off the bed due to excessive turning over, making the turning-over operation safer and more reliable.

[0054] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nursing auxiliary turning device, comprising a nursing bed (1), characterized in that: The nursing bed (1) is composed of a lower base plate (5), a brake universal wheel (6), a support column (7), an upper bed plate (8) and a bed frame (9); a pair of turning devices (2) are symmetrically arranged on both sides above the lower base plate (5); a pair of supporting devices (3) are symmetrically arranged below the upper bed plate (8); a pair of anti-fall devices (4) are symmetrically arranged on both sides of the nursing bed (1); and a flexible soft mattress (10) is laid on the upper bed plate (8); The turning device (2) comprises a pair of first motors (20), two first screw rods (21) and an oblique triangular pad (27); the first motor (20) is fixedly mounted on the lower base plate (5); the two first screw rods (21) have opposite screw threads; moving blocks (22) are threadedly mounted on the two first screw rods (21); a first connecting support block (23) is fixedly mounted on the moving block (22); a connecting rod (26) is rotatably mounted on the first connecting support block (23); a second connecting support block (28) is fixedly mounted on the bottom of the oblique triangular pad (27); and an end of the connecting rod (26) away from the first connecting support block (23) is rotatably connected to the second connecting support block (28).

2. The nursing auxiliary turning device according to claim 1, characterized in that: One of the first screw rods (21) is connected to the output end of the first motor (20), a support seat (24) is installed between the two first screw rods (21), the support seat (24) is fixedly installed on the lower base plate (5), and the coupling (25) is rotatably installed in the support seat (24) between the two first screw rods (21).

3. The nursing auxiliary turning device according to claim 2, characterized in that: A support seat (24) is installed at one end of the first screw rod (21) not directly connected to the first motor (20) and away from the coupling (25); the support seat (24) is fixedly mounted on the lower base plate (5); and one end of the first screw rod (21) not directly connected to the first motor (20) is rotatably mounted in the support seat (24).

4. The nursing auxiliary turning device according to claim 1, characterized in that: The support device (3) comprises a support plate (34) and a fixing frame (30); the support plate (34) is fixedly mounted on the lower base plate (5); a rectangular support block (35) is fixedly mounted on the support plate (34); a groove is formed on the oblique triangular pad (27); and the rectangular support block (35) is slidably mounted in the groove.

5. The nursing auxiliary turning device according to claim 4, characterized in that: There are two fixed frames (30), which are fixedly mounted on the bed frame (9), a push rod motor (31) is fixedly mounted on the fixed frame (30), a telescopic push rod (32) is mounted on the push rod motor (31), a triangular support block (33) is fixedly mounted on the output end of the telescopic push rod (32), and the triangular support block (33) is slidably mounted in an arc groove on the oblique triangular pad (27).

6. The nursing auxiliary turning device according to claim 4, characterized in that: The anti-fall device (4) comprises a side baffle (40), and slots are provided on both sides of the upper bed board (8). The side baffle (40) is slidably installed in the slots, and a rack (41) is fixedly installed on the side baffle (40).

7. The nursing auxiliary turning device according to claim 6, characterized in that: A first toothed belt wheel (42) is fixedly mounted on the first screw rod (21) at a side away from the side baffle (40), a rotating rod (45) is rotatably mounted on the fixed frame (30) at a side close to the side baffle (40), a second toothed belt wheel (43) is fixedly mounted on the rotating rod (45), the first toothed belt wheel (42) and the second toothed belt wheel (43) are sleeved with a same synchronous toothed belt (44), a gear (46) is fixedly mounted on the rotating rod (45), and the gear (46) is meshed with the rack (41).

8. The nursing auxiliary turning device according to claim 1, characterized in that: A limiting slide bar (47) is fixedly mounted on the lower base plate (5), and the limiting slide bar (47) is slidably mounted in the side baffle plate (40).

9. The nursing auxiliary turning device according to claim 5, characterized in that: The first motor (20) and the push rod motor (31) are both electrically connected to an external control device.

10. A method for using a nursing auxiliary turning device, characterized in that: The specific steps are as follows: S1. The patient lies on the nursing bed (1), and when the patient needs to turn over, the patient operates the control device to prepare to turn over; S2, the control device controls the push rod motor (31) on one side to retract the telescopic push rod (32), and when the telescopic push rod (32) is retracted, the triangular support block (33) is pulled out; S3, after the triangular support block (33) is pulled out, the first motor (20) will work to drive the first screw rod (21) to rotate, and the first screw rod (21) will drive the moving block (22) to move when rotating, and the moving block (22) will lift the oblique triangular pad (27) through the connecting rod (26) when moving, and after the oblique triangular pad (27) is lifted up, under the arc profile of the gradually rising oblique triangular pad (27), one side of the patient is lifted up by the raised oblique triangular pad (27) and tilted to the other side; S4, when the first screw rod (21) rotates, it drives the first toothed belt wheel (42) to rotate. The first toothed belt wheel (42) drives the second toothed belt wheel (43) and the rotating rod (45) to rotate through the synchronous toothed belt (44). When the rotating rod (45) rotates, it drives the gear (46) to rotate. When the gear (46) rotates, it meshes with the rack (41) so that the side baffle (40) away from the side of the raised oblique triangle pad (27) rises. The side baffle (40) rises and hangs on one side, so as to prevent the patient from falling off the bed due to turning over at an excessive angle.