A nursing bed for assisting bedridden patients to turn over

Abstract

The present invention relates to a nursing bed, and in particular to a nursing bed for assisting bedridden patients in a nursing department to turn over. The present invention provides an automatic turning, automatic cleaning and anti-fall nursing bed for assisting bedridden patients in a nursing department to turn over. A nursing bed for assisting bedridden patients in a nursing department to turn over comprises a base frame, a control box, a slide, a first telescopic rod, a curved bed board, a lifting mechanism and a turning mechanism, etc. A control box is installed on the right side of the upper front of the base frame, slides are provided on both the front and rear sides of the base frame, first telescopic rods are slidably provided on the two slides, a curved bed board is connected between the upper parts of the two first telescopic rods, a lifting mechanism is provided on the rear side of the upper part of the base frame, and a turning mechanism is connected between the curved bed board, the lifting mechanism and the base frame. The present invention drives the second rotating shaft to rotate by rotating the output shaft of the reduction motor, thereby rotating the belt and the first rotating shaft, rotating the swing frame and the curved bed board, thereby achieving the effect of assisting turning over and saving manpower.

Description

Technical Field

[0001] The invention relates to a nursing bed, in particular to a nursing bed for assisting bedridden patients in a nursing department to turn over. Background Art

[0002] Nursing beds are mainly used for patients who are in the recovery period and have difficulty in moving. Nursing beds that can assist patients in doing a little exercise are helpful to the patient's recovery. Existing nursing beds can only be simply lifted and folded. Since nurses often need to clean patients, nurses need to manually push patients to turn over for nursing beds that cannot be turned over, which consumes a lot of nurses' physical strength. When patients need to go to the toilet, family members and nurses need to use toilet utensils to help patients go to the toilet and clean up, which increases people's labor intensity. Therefore, it is necessary to design a nursing bed.

[0003] Therefore, it is particularly necessary to design a nursing bed for bedridden patients with automatic turning over, automatic cleaning and anti-falling function to solve the problems in the prior art. Summary of the invention

[0004] In order to overcome the shortcomings of existing nursing beds that have no turning function and are inconvenient for patients to go to the toilet, the technical problem is to provide an automatic turning, automatic cleaning and anti-fall nursing bed for bedridden patients in the nursing department.

[0005] The technical solution is as follows: A nursing bed for assisting bedridden patients in the nursing department to turn over, comprising a base frame, a control box, a first contact switch, a second contact switch, a slide, a first telescopic rod, a curved bed board, a lifting mechanism and a turning mechanism. A control box is installed on the right side of the upper front of the base frame, a first contact switch is provided on the upper front side of the control box, a second contact switch is provided on the side of the front of the control box away from the first contact switch, slides are provided on both the front and rear sides of the base frame, first telescopic rods are slidably provided on the two slides, an curved bed board is connected between the upper parts of the two first telescopic rods, a lifting mechanism is provided on the rear side of the upper part of the base frame, and a turning mechanism is connected between the curved bed board, the lifting mechanism and the base frame.

[0006] Optionally, the lifting mechanism includes a first electric push rod, a first mounting block and a fixing ring. The first mounting block is provided on the rear side of the upper part of the base frame, the first electric push rod is installed on the first mounting block, and the fixing ring is connected to the telescopic rod of the first electric push rod.

[0007] Optionally, the turning mechanism includes a first rotating shaft, a swing frame, a belt, a first mounting ring, a reduction motor and a second rotating shaft. The first rotating shaft is rotatably provided on the fixed ring, a swing frame connected to the arc-shaped bed board is provided on the front side of the first rotating shaft, a reduction motor is installed on the rear side of the base frame, a first mounting ring is provided on the rear side of the base frame, a second rotating shaft rotatably connected to the first mounting ring is connected to the output shaft of the reduction motor, and a belt is wound around the second rotating shaft and the first rotating shaft through a transmission wheel.

[0008] Optionally, an anti-fall mechanism is also included, which includes a second electric push rod, a connecting plate, a guardrail, a first distance sensor and a second distance sensor. Second electric push rods are installed on the front and rear sides of the curved bed board, and connecting plates are connected to the two telescopic rods of the second electric push rods. Guardrails that are slidably connected to the curved bed board are provided on the two connecting plates. A first distance sensor is provided on the lower side of the swing frame, and a second distance sensor is provided in the middle of the upper part of the front connecting plate.

[0009] Optionally, an inflation mechanism is also included, which includes a second mounting block, an air pump, a pipe and an airbag. Second mounting blocks are provided on the left and right sides of the lower part of the curved bed board, and air pumps are provided on the two second mounting blocks. Airbags are provided on the left and right sides of the curved bed board, and pipes are connected between the two air pumps and the airbags on the same side.

[0010] Optionally, a toilet mechanism is also included, which includes a second mounting ring, a third electric push rod, a pushing frame, a second telescopic rod, a first movable plate, a slide and a sliding rod. A second mounting ring is provided on the rear side of the lower part of the curved bed board, a third electric push rod is installed on the second mounting ring, the third electric push rod telescopic rod is connected to the pushing frame, second telescopic rods are provided on both sides of the front of the pushing frame, a first movable plate is connected between the front parts of the two second telescopic rods, slides are provided on both sides of the lower part of the curved bed board, and a sliding rod slidably connected to the slide is provided on the lower side of the first movable plate.

[0011] Optionally, a flushing mechanism is also included, which includes a water pipe, a solenoid valve, a sewage pool, a third mounting block, a fourth electric push rod, a baffle, a second movable plate, a third telescopic rod, a spring and a third distance sensor. A sewage pool is provided between the two slide grooves, a water pipe is connected between the right part of the sewage pool and the base frame, a solenoid valve is provided on the left side of the water pipe, a third mounting block is provided on the front side of the left part of the sewage pool, a fourth electric push rod is installed on the third mounting block, a baffle slidably connected to the sewage pool is connected to the telescopic rod of the fourth electric push rod, third telescopic rods are provided on both sides of the sewage pool, a second movable plate is connected between the upper sides of the two third telescopic rods, springs are connected between the left and right sides of the lower part of the second movable plate and the sewage pool, the springs are wound around the third telescopic rod, and a third distance sensor is provided on the rear side of the sewage pool.

[0012] Optionally, a switching power supply, a power module and a control module are installed in the control box. The switching power supply supplies power for the auxiliary turning nursing bed for bedridden patients in the nursing department. The output end of the switching power supply is electrically connected to the control module. The power module is connected to a main power switch through a line. The control module is connected to a DS1302 clock circuit and a 24C02 circuit. The first distance sensor, the second distance sensor, the third distance sensor, the first contact switch and the second contact switch are all electrically connected to the control module. The first electric push rod, the second electric push rod, the third electric push rod, the fourth electric push rod, the solenoid valve and the air pump are all connected to the control module through a relay control module. The reduction motor is connected to the control module through a DC motor forward and reverse module.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention drives the second rotating shaft to rotate by rotating the output shaft of the reduction motor, thereby rotating the belt and the first rotating shaft, rotating the swing frame and the arc-shaped bed board, thereby achieving the effect of assisting turning over and saving manpower;

[0014] 2. The patient's excrement falls into the sewage pool. When the third distance sensor senses that the distance between the third distance sensor and the second movable plate reaches a preset value, the control module controls the solenoid valve to start, so that the water flowing out of the water pipe cleans the sewage pool and the second movable plate, achieving an automatic cleaning effect;

[0015] 3. When the first distance sensor senses that the distance between the base frame and the first distance sensor reaches a first preset value, the second electric push rod telescopic rod drives the guardrail to move upward, thereby achieving an anti-fall effect and preventing the patient from falling from the curved bed board when turning the patient over. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure from a third viewing angle of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the turning mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the turning mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the first part of the anti-fall mechanism of the present invention.

[0023] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the first part of the anti-fall mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second part of the anti-fall mechanism of the present invention.

[0025] Fig.10 It is a schematic cross-sectional three-dimensional structural diagram of the second part of the anti-fall mechanism of the present invention.

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure of the first part of the inflation mechanism of the present invention.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the second part of the inflation mechanism of the present invention.

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the first part of the toilet mechanism of the present invention.

[0029] Fig.14 It is a schematic diagram of the three-dimensional structure of the second part of the toilet mechanism of the present invention.

[0030] Fig.15 It is a schematic diagram of the three-dimensional structure of the flushing mechanism of the present invention.

[0031] Fig.16 It is a schematic diagram of the cross-sectional three-dimensional structure of the flushing mechanism of the present invention.

[0032] Fig.17 It is a circuit block diagram of the present invention.

[0033] Fig.18 It is a circuit schematic diagram of the present invention.

[0034] Description of the accompanying drawings: 1_base frame, 2_control box, 31_first contact switch, 32_second contact switch, 4_slide, 5_first telescopic rod, 6_arc bed board, 7_lifting mechanism, 71_first electric push rod, 72_first mounting block, 73_fixing ring, 8_turning mechanism, 81_first rotating shaft, 82_swing frame, 83_belt, 84_first mounting ring, 85_reduction motor, 86_second rotating shaft, 9_anti-fall mechanism, 91_second electric push rod, 92_connecting plate, 93_guardrail, 94_first distance sensor, 95_second distance sensor, 10_inflator Structure, 101_second mounting block, 102_air pump, 103_pipeline, 104_air bag, 11_toilet mechanism, 111_second mounting ring, 112_third electric push rod, 113_pushing frame, 114_second telescopic rod, 115_first movable plate, 116_slide, 117_slide rod, 12_flushing mechanism, 121_water pipe, 122_solenoid valve, 123_waste pool, 124_third mounting block, 125_fourth electric push rod, 126_baffle, 127_second movable plate, 128_third telescopic rod, 129_spring, 1210_third distance sensor. DETAILED DESCRIPTION

[0035] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0036] Example 1

[0037] A nursing bed for assisting bedridden patients to turn over, such as Figure 1-Figure 6 As shown, it includes a base frame 1, a control box 2, a first contact switch 31, a second contact switch 32, a slide 4, a first telescopic rod 5, a curved bed board 6, a lifting mechanism 7 and a turning mechanism 8. The control box 2 is installed on the right side of the upper front part of the base frame 1, and the lifting mechanism 7 is provided on the rear side of the upper part of the base frame 1. The first contact switch 31 is provided on the upper front side of the control box 2, and the second contact switch 32 is provided on the lower front side of the control box 2. Slides 4 are provided on both the front and rear sides of the base frame 1, and first telescopic rods 5 are slidably provided on the two slides 4. An curved bed board 6 is connected between the upper parts of the two first telescopic rods 5, and a square hole is opened in the middle of the curved bed board 6. A turning mechanism 8 is connected between the curved bed board 6, the lifting mechanism 7 and the base frame 1.

[0038] The lifting mechanism 7 includes a first electric push rod 71, a first mounting block 72 and a fixing ring 73. The first mounting block 72 is provided on the upper rear side of the base frame 1, the first electric push rod 71 is installed on the first mounting block 72, and the fixing ring 73 is connected to the telescopic rod of the first electric push rod 71.

[0039] The turning mechanism 8 includes a first rotating shaft 81, a swing frame 82, a belt 83, a first mounting ring 84, a reduction motor 85 and a second rotating shaft 86. The reduction motor 85 is installed on the rear side of the base frame 1. The first rotating shaft 81 is rotatably provided on the fixed ring 73. The swing frame 82 is welded on the front side of the first rotating shaft 81. The swing frame 82 is connected to the arc-shaped bed board 6. The first mounting ring 84 is welded on the rear side of the base frame 1. The second rotating shaft 86 is connected to the output shaft of the reduction motor 85. The second rotating shaft 86 is rotatably connected to the first mounting ring 84. A belt 83 is wound around the second rotating shaft 86 and the first rotating shaft 81 through a transmission wheel.

[0040] When people need to use a nursing bed that assists patients in turning over, people can use this nursing bed for assisting patients in bed turning over. First, people press the main power switch to power on the device, and then let the patient lie in the middle of the upper part of the curved bed board 6. When people need the patient to turn over, people manually press the first contact switch 31, so that the control module controls the first electric push rod 71 to extend the telescopic rod upward for three seconds and then close it. The telescopic rod of the first electric push rod 71 drives the fixed ring 73 to move upward, so that the first rotating shaft 81 moves upward, thereby causing the swing frame 82 to move upward, so that the curved bed board 6 moves upward, and then the first telescopic rod 5 is stretched. When the first electric push rod 71 After being shut down for 30 minutes, the control module controls the output shaft of the reduction motor 85 to rotate for 30 seconds, then stop for 30 minutes, then reversely rotate for 30 seconds and shut down. The output shaft of the reduction motor 85 drives the second rotating shaft 86 to rotate, thereby rotating the belt 83, rotating the first rotating shaft 81, and then rotating the swing frame 82, so that the arc bed board 6 rotates, and then the first telescopic rod 5 slides along the slide groove 4. At this time, people lie on the arc bed board 6 on their side, which is convenient for the caregiver to clean the patient. After 30 minutes, the output shaft of the reduction motor 85 rotates in the opposite direction to drive the second rotating shaft 86 to rotate in the opposite direction, thereby rotating the belt 83 in the opposite direction, rotating the first rotating shaft 81 in the opposite direction, and then rotating the swing frame 82 rotates in the opposite direction, causing the arc-shaped bed board 6 to rotate in the opposite direction, and then the first telescopic rod 5 slides in the opposite direction along the slide groove 4. After thirty minutes, the control module controls the output shaft of the reduction motor 85 to rotate in the opposite direction for thirty seconds and then stop for thirty minutes and then turn off after thirty seconds. The output shaft of the reduction motor 85 rotates in the opposite direction to drive the second rotating shaft 86 to rotate in the opposite direction, thereby causing the belt 83 to rotate in the opposite direction, causing the first rotating shaft 81 to rotate in the opposite direction, and then the swing frame 82 rotates in the opposite direction, causing the arc-shaped bed board 6 to rotate in the opposite direction, and then the first telescopic rod 5 slides in the opposite direction along the slide groove 4. At this time, people lie on the arc-shaped bed board 6 on their sides in the opposite direction. After thirty minutes, the output shaft of the reduction motor 85 drives the second rotating shaft 86 to rotate. , thereby causing the belt 83 to rotate, causing the first rotating shaft 81 to rotate, and then the swing frame 82 to rotate, causing the arc-shaped bed board 6 to rotate, and then the first telescopic rod 5 to slide along the slide groove 4. When people do not need the patient to turn over, after the reduction motor 85 is turned off, people long press the first contact switch 31, so that the control module controls the first electric push rod 71 to shorten the telescopic rod downward for three seconds and then turn off. The first electric push rod 71 telescopic rod drives the fixing ring 73 to move downward, thereby causing the first rotating shaft 81 to move downward, causing the swing frame 82 and the arc-shaped bed board 6 to move downward, causing the first telescopic rod 5 to be compressed, and then people manually press the main power switch again to power off the device.

[0041] Example 2

[0042] On the basis of Example 1, Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8, Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 and Fig.18 As shown, it also includes an anti-fall mechanism 9, which includes a second electric push rod 91, a connecting plate 92, a guardrail 93, a first distance sensor 94 and a second distance sensor 95. The first distance sensor 94 is provided on the lower side of the swing frame 82, and the second electric push rods 91 are installed on the front and rear sides of the arc bed board 6. The two second electric push rods 91 are connected to the telescopic rods with connecting plates 92, and the two connecting plates 92 are provided with guardrails 93. The guardrails 93 are slidably connected to the arc bed board 6, and a second distance sensor 95 is provided in the middle of the upper part of the front connecting plate 92.

[0043] It also includes an inflation mechanism 10, which includes a second mounting block 101, an air pump 102, a pipe 103 and an airbag 104. Second mounting blocks 101 are welded on the left and right sides of the lower part of the curved bed board 6, and airbags 104 are provided on the left and right sides of the curved bed board 6. Air pumps 102 are provided on the two second mounting blocks 101, and pipes 103 are connected between the two air pumps 102 and the airbags 104 on the same side.

[0044] It also includes a toilet mechanism 11, which includes a second mounting ring 111, a third electric push rod 112, a pushing frame 113, a second telescopic rod 114, a first movable plate 115, a slide 116 and a sliding rod 117. A second mounting ring 111 is provided on the rear side of the lower part of the curved bed board 6, and slides 116 are provided on both the left and right sides of the lower part of the curved bed board 6. The angle between the lower and upper parts of the rear side of the slide 116 is 120 degrees. A third electric push rod 112 is installed on the second mounting ring 111, and the pushing frame 113 is connected to the telescopic rod of the third electric push rod 112. Second telescopic rods 114 are provided on both the left and right sides of the front of the pushing frame 113, and a first movable plate 115 is connected between the front parts of the two second telescopic rods 114. A sliding rod 117 is provided on the lower side of the first movable plate 115, and the sliding rod 117 is slidably connected to the slide 116.

[0045] The flushing mechanism 12 includes a water pipe 121, a solenoid valve 122, a sewage pool 123, a third mounting block 124, a fourth electric push rod 125, a baffle 126, a second movable plate 127, a third telescopic rod 128, a spring 129 and a third distance sensor 1210. A sewage pool 123 is provided between the two chutes 4. A round hole is provided on the right part of the sewage pool 123. A water pipe 121 is connected between the right part of the sewage pool 123 and the bottom frame 1. A solenoid valve 122 is provided on the left side of the water pipe 121. A third mounting block is welded on the front side of the left part of the sewage pool 123. 124, a fourth electric push rod 125 is installed on the third mounting block 124, a baffle 126 is connected to the telescopic rod of the fourth electric push rod 125, the baffle 126 is slidably connected to the sewage pool 123, third telescopic rods 128 are provided on both sides of the sewage pool 123, a second movable plate 127 is connected between the upper sides of the two third telescopic rods 128, a spring 129 is connected between the left and right sides of the lower part of the second movable plate 127 and the sewage pool 123, the spring 129 is wound around the third telescopic rod 128, and a third distance sensor 1210 is provided on the rear side of the sewage pool 123.

[0046] A switching power supply, a power module and a control module are installed in the control box 2. The switching power supply supplies power for the auxiliary turning nursing bed for bedridden patients in this nursing department. The output end of the switching power supply is electrically connected to the control module. The power module is connected to a main power switch through a line. The control module is connected to a DS1302 clock circuit and a 24C02 circuit. The first distance sensor 94, the second distance sensor 95, the third distance sensor 1210, the first contact switch 31 and the second contact switch 32 are all electrically connected to the control module. The first electric push rod 71, the second electric push rod 91, the third electric push rod 112, the fourth electric push rod 125, the solenoid valve 122 and the air pump 102 are all connected to the control module through a relay control module, and the reduction motor 85 is connected to the control module through a DC motor forward and reverse module.

[0047] The swing frame 82 moves upward and drives the first distance sensor 94 to move upward. The first distance sensor 94 is provided with a first preset value and a second preset value, and the first preset value is larger than the second preset value. When the first distance sensor 94 senses that the distance between the first distance sensor 94 and the bottom frame 1 reaches the first preset value, the control module controls the second electric push rod 91 to shorten the telescopic rod upward, and the second electric push rod 91 telescopic rod drives the connecting plate 92 to move upward, so that the guardrail 93 moves upward. The preset value of the second distance sensor 95 is provided with a first preset value and a second preset value, and the first preset value is smaller than the second preset value. When the second distance sensor 95 senses the distance between the second distance sensor 95 and the curved bed board 6, the first preset value is smaller than the second preset value. When the distance reaches the first preset value, the control module controls the second electric push rod 91 to close, preventing the patient from falling out of the curved bed board 6 when the patient is assisted in turning over. The swing frame 82 moves downward, driving the first distance sensor 94 to move downward. When the first distance sensor 94 senses that the distance between the base frame 1 reaches the second preset value, the control module controls the second electric push rod 91 to extend the telescopic rod downward, and the telescopic rod of the second electric push rod 91 drives the connecting plate 92 to move downward, thereby causing the guardrail 93 to move downward. When the second distance sensor 95 senses that the distance between the curved bed board 6 reaches the second preset value, the control module controls the second electric push rod 91 to close.

[0048] When people press the first contact switch 31, the control module controls the air pump 102 to start and then shut down after thirty seconds. The air pump 102 starts to introduce air into the airbag 104 through the pipe 103, thereby making the airbag 104 larger, providing an obstacle for the patient to turn over, thereby preventing the patient from turning over at too large an angle and blocking the mouth and nose.

[0049] When the patient needs to use the toilet, people manually press the second contact switch 32, so that the control module controls the third electric push rod 112 to extend downward for three seconds and then close, and the third electric push rod 112 drives the push frame 113 to move downward, so that the second telescopic rod 114 moves downward, so that the first moving plate 115 moves downward, and then the sliding rod 117 moves downward along the slide 116. When the sliding rod 117 moves to the convex part of the slide 116, the sliding rod 117 and the first moving plate 115 start to move backward, so that the second extension rod 114 moves downward, so that the first moving plate 115 moves downward, and then the sliding rod 117 moves downward along the slide 116. The retractable rod 114 is compressed. When the patient finishes using the toilet, people long press the second contact switch 32, so that the control module controls the third electric push rod 112 to shorten the telescopic rod upward for three seconds and then close. The telescopic rod of the third electric push rod 112 drives the pushing frame 113 to move upward, thereby making the second telescopic rod 114 move upward, and making the first movable plate 115 move upward. At this time, the sliding rod 117 moves forward along the slide 116. When the sliding rod 117 moves to the convex part of the slide 116 again, the sliding rod 117 and the first movable plate 115 start to move upward.

[0050] People connect the water pipe 121 to the faucet, and the excrement of the patient falls on the second movable plate 127, so that the second movable plate 127 moves downward, so that the third telescopic rod 128 is compressed, and then the spring 129 is compressed. When the third distance sensor 1210 senses that the distance between the third distance sensor 1210 and the second movable plate 127 reaches a preset value, the control module controls the solenoid valve 122 to start, so that the water flows into the sewage pool 123 through the water pipe 121. At the same time, the control module controls the fourth electric push rod 125 to extend backward for two seconds and then close. The telescopic rod of the fourth electric push rod 125 drives The baffle 126 moves backward, so that the water flow flushes the excrement out of the waste pool 123. When the excrement on the second movable plate 127 is cleaned up, the spring 129 resets and drives the second movable plate 127 to move upward and reset, so that the third telescopic rod 128 is stretched. When the third distance sensor 1210 senses that the distance between it and the second movable plate 127 is higher than the preset value, the control module controls the solenoid valve 122 to close. At the same time, the control module controls the fourth electric push rod 125 to shorten the telescopic rod forward for two seconds and then close. The telescopic rod of the fourth electric push rod 125 drives the baffle 126 to move forward.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nursing bed for assisting bedridden patients to turn over, comprising a base frame (1), a control box (2), a first contact switch (31), a second contact switch (32), a slide (4), a first telescopic rod (5) and an arc-shaped bed board (6), wherein the control box (2) is installed on the right side of the upper front portion of the base frame (1), the first contact switch (31) is arranged on the upper front side of the control box (2), the second contact switch (32) is arranged on the lower front side of the control box (2), slides (4) are arranged on both the front and rear sides of the base frame (1), first telescopic rods (5) are slidably arranged on the two slides (4), and an arc-shaped bed board (6) is connected between the upper parts of the two first telescopic rods (5), characterized in that: It also includes a lifting mechanism (7) and a turning mechanism (8); the lifting mechanism (7) for driving the curved bed board (6) to move up and down is provided on the upper rear side of the base frame (1); and the turning mechanism (8) for assisting the patient in turning his body is connected between the curved bed board (6), the lifting mechanism (7) and the base frame (1); The lifting mechanism (7) comprises a first electric push rod (71), a first mounting block (72) and a fixing ring (73); the first mounting block (72) is provided on the upper rear side of the base frame (1); the first electric push rod (71) is mounted on the first mounting block (72); and the fixing ring (73) is connected to the telescopic rod of the first electric push rod (71); The turning mechanism (8) comprises a first rotating shaft (81), a swing frame (82), a belt (83), a first mounting ring (84), a reduction motor (85) and a second rotating shaft (86); the first rotating shaft (81) is rotatably mounted on the fixed ring (73); a swing frame (82) connected to the arc-shaped bed plate (6) is disposed on the front side of the first rotating shaft (81); the swing frame (82) can guide the movement of the arc-shaped bed plate (6) when it moves; a reduction motor (85) is mounted on the rear side of the base frame (1); a first mounting ring (84) is disposed on the rear side of the base frame (1); a second rotating shaft (86) rotatably connected to the first mounting ring (84) is connected to the output shaft of the reduction motor (85); a belt (83) is wound around the second rotating shaft (86) and the first rotating shaft (81) via a transmission wheel; The device also includes an inflation mechanism (10) that provides a barrier when the patient turns over. The inflation mechanism (10) includes a second mounting block (101), an air pump (102), a pipe (103) and an air bag (104). The second mounting blocks (101) are provided on both left and right sides of the lower part of the curved bed board (6). The two second mounting blocks (101) are provided with air pumps (102). The air bags (104) are provided on both left and right sides of the curved bed board (6). The two air pumps (102) are connected to the air bags (104) on the same side by pipes (103).

2. A nursing bed for assisting bedridden patients to turn over according to claim 1, characterized in that: The invention also comprises an anti-fall mechanism (9) for preventing a patient from falling from the curved bed board (6) when turning over. The anti-fall mechanism (9) comprises a second electric push rod (91), a connecting plate (92), a guardrail (93), a first distance sensor (94) and a second distance sensor (95). The second electric push rods (91) are installed on both the front and rear sides of the curved bed board (6). The connecting plates (92) are connected to the telescopic rods of the two second electric push rods (91). The guardrails (93) connected to the curved bed board (6) in a sliding manner are provided on the two connecting plates (92). The first distance sensor (94) is provided on the lower side of the swing frame (82), and the second distance sensor (95) is provided in the middle of the upper part of the connecting plate (92) on the front side.

3. A nursing bed for assisting bedridden patients to turn over according to claim 2, characterized in that: The invention also comprises a toilet mechanism (11), which comprises a second mounting ring (111), a third electric push rod (112), a pushing frame (113), a second telescopic rod (114), a first movable plate (115), a slideway (116) and a slide rod (117). A second mounting ring (111) is provided at the rear side of the lower part of the arc-shaped bed plate (6), a third electric push rod (112) is mounted on the second mounting ring (111), and the third electric push rod (112) is connected to the telescopic rod. A push frame (113) is connected, and second telescopic rods (114) are provided on both left and right sides of the front of the push frame (113), and a first movable plate (115) is connected between the front parts of the two second telescopic rods (114). Slideways (116) are provided on both left and right sides of the lower part of the arc-shaped bed plate (6), and the angle between the lower part and the upper part of the rear side surface of the slideway (116) forms an angle greater than 90 degrees. A slide rod (117) slidably connected to the slideway (116) is provided on the lower side of the first movable plate (115).

4. A nursing bed for assisting bedridden patients to turn over according to claim 3, characterized in that: The device also includes a flushing mechanism (12) for cleaning the patient's excrement. The flushing mechanism (12) includes a water pipe (121), a solenoid valve (122), a waste pool (123), a third mounting block (124), a fourth electric push rod (125), a baffle (126), a second movable plate (127), a third telescopic rod (128), a spring (129) and a third distance sensor (1210). A waste pool (123) for containing the patient's excrement is provided between the two chutes (4). A water pipe (121) is connected between the right part of the waste pool (123) and the bottom frame (1). A solenoid valve (122) is provided on the left side of the water pipe (121). The front left part of the waste pool (123) is provided with a water pipe (121). A third mounting block (124) is provided on the side, a fourth electric push rod (125) is mounted on the third mounting block (124), a baffle (126) slidably connected to the dirt pool (123) is connected to the telescopic rod of the fourth electric push rod (125), third telescopic rods (128) are provided on both left and right sides of the dirt pool (123), a second movable plate (127) is connected between the upper sides of the two third telescopic rods (128), springs (129) are connected between the left and right sides of the lower part of the second movable plate (127) and the dirt pool (123), the springs (129) are wound around the third telescopic rods (128), and a third distance sensor (1210) is provided on the rear side of the dirt pool (123).

5. A nursing bed for assisting bedridden patients to turn over according to claim 4, characterized in that: A switching power supply, a power module and a control module are installed in the control box (2). The switching power supply supplies power to the auxiliary turning nursing bed for bedridden patients in the nursing department. The output end of the switching power supply is electrically connected to the control module. The power module is connected to a main power switch through a line. The control module is connected to a DS1302 clock circuit and a 24C02 circuit. The first distance sensor (94), the second distance sensor (95), the third distance sensor (1210), the first contact switch (31) and the second contact switch (32) are all electrically connected to the control module. The first electric push rod (71), the second electric push rod (91), the third electric push rod (112), the fourth electric push rod (125), the solenoid valve (122) and the air pump (102) are all connected to the control module through a relay control module. The reduction motor (85) is connected to the control module through a DC motor forward and reverse module.

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