CN220938347U

CN220938347U - Electric nursing bed board

Info

Publication number: CN220938347U
Application number: CN202322403909.9U
Authority: CN
Inventors: 贺顺友
Original assignee: Hebei Eryou Medical Equipment Co ltd
Current assignee: Hebei Eryou Medical Equipment Co ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-05-14
Anticipated expiration: 2033-09-05

Abstract

The utility model discloses an electric nursing bed board, which sequentially comprises a back board and leg boards from the head to the foot, wherein the back board is provided with two back boards and is rotationally connected through a first hinge, the back board comprises a first back board and a second back board, the first back board is rotationally connected with the second back board through the first hinge, and the second back board is rotationally connected with the leg boards through the second hinge; the back lifting mechanism is arranged below the back plate; the side slip prevention mechanism comprises a first hinging seat, a second hinging seat and a first electric push rod, wherein the first hinging seat is fixed at the bottom of the second back plate, the second hinging seat is fixed at the bottom of the first back plate, the fixed end of the first electric push rod is hinged with the first hinging seat, and the telescopic end of the first electric push rod is hinged with the second hinging seat. The electric nursing bed board prevents patients from sideslip when the back board is rotated and lifted, effectively protects the patients and reduces the occurrence of safety accidents.

Description

Electric nursing bed board

Technical Field

The utility model relates to the technical field of nursing bed boards, in particular to an electric nursing bed board.

Background

The nursing bed board is also called a nursing mattress, can be placed on bed frames in different places, can realize the basic functions of the nursing bed board, can enable patients to turn over regularly in the process of caring bedridden patients, assist the patients to change postures, improve comfort, reduce complications such as pressure sores, falling-up pneumonia and the like, improve the blood circulation of pressed parts, promote early rehabilitation of the patients, enable the positions of the patients to be suitable for the treatment and nursing needs, and can also realize the nursing functions of lifting backs, bending legs and the like of the human body, so that the nursing bed not only saves space but also reduces cost compared with the nursing bed; however, due to the small space of the nursing mattress, multiple functions are difficult to be applied to one nursing mattress at the same time.

In the prior art, as disclosed in patent CN218607136U, a nursing mattress with the function of turning over and lifting back and bending legs is disclosed, the inside of the leg supporting main frame and the back main frame are all provided with transverse electric push rods, one side of each transverse electric push rod is hinged with a turning over hinge block, the top of each turning over hinge block is fixedly connected with a turning over shaft, one side of each turning over shaft is fixedly connected with a roller pushing frame, the front and the back of each turning over shaft are movably connected with a shaft seat, the front and the back of the back main frame and the inside of the leg main frame are fixedly connected with push rod supporting rods, the shaft seats are fixedly connected with the push rod supporting rods, and the use of the roller pushing frames is beneficial to supporting the back center frame and the thigh center frame for bending legs and lifting back.

However, the above patent only rotates the back main frame to rise in the process of lifting the back, and does not set up the sideslip prevention mechanism, and the nursing bed board pushes the patient to sit up in the rotating and rising process, if the patient does not have self-care ability, sideslip occurs easily in the sitting process, and even the patient falls down to the bed when serious, and certain injury is caused to the patient.

Therefore, there is a need to develop an electric care bed board against the above drawbacks.

Disclosure of utility model

The utility model aims to provide an electric nursing bed board, which can prevent patients from sideslip when the back board is rotated and lifted, effectively protect the patients and reduce safety accidents.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model discloses an electric nursing bed board which is horizontally arranged on the top surface of a bed frame and comprises a main body support, a bed board arranged above the main body support, a sideslip prevention mechanism and a back lifting mechanism, wherein the bed board sequentially comprises back boards and leg boards from the head to the foot, the back boards are symmetrically arranged left and right and are rotationally connected through first hinges, the back boards sequentially comprise a first back board and a second back board from the outer side of the bed to the inner side of the bed, the first back board is rotationally connected with the second back board through the first hinges, and the second back board is rotationally connected with the leg boards through the second hinges; the back lifting mechanism is arranged below the back plate and can drive the back plate to rotate and lift; the side-slip prevention mechanism is provided with two groups of side-slip prevention mechanisms and is arranged at the bottoms of the back plates in a bilateral symmetry mode, the side-slip prevention mechanism comprises a first hinging seat, a second hinging seat and a first electric push rod, the first hinging seat is fixed at the bottom of the second back plate, the second hinging seat is fixed at the bottom of the first back plate, and the fixed end of the first electric push rod is hinged with the first hinging seat, and the telescopic end of the first electric push rod is hinged with the second hinging seat.

Further, the main body support comprises an outer frame, a first support rod, a second support rod and third support rods, wherein the first support rod and the second support rod are both fixed in the outer frame and are arranged along the width direction of the outer frame, the first support rod is arranged below the back plate, the second support rod is arranged below the second hinge, the two third support rods are symmetrically fixed on the side wall of the second support rod, and the cantilever ends face to the first support rod; the back lifting mechanism comprises a rotating rod, a connecting rod, a first rotating roller, a third hinging seat, a fourth hinging seat and a second electric push rod, wherein the rotating rod is rotationally connected between the two third supporting rods, the left end of the rotating rod passes through the left side of the third supporting rods and then is fixedly connected with the fourth hinging seat, the third hinging seat is fixed on the side wall of the first supporting rod, the fixed end of the second electric push rod is hinged with the third hinging seat, the telescopic end of the second electric push rod is hinged with the fourth hinging seat, the two connecting rods are symmetrically arranged between the two third supporting rods, one end of each connecting rod is fixed on the rotating rod, the other end of each connecting rod is arranged in a cantilever manner, and the first rotating roller is rotationally connected between the two connecting rods and is positioned at the cantilever end of each connecting rod.

Further, the turnover device comprises a turnover mechanism, wherein the leg plate sequentially comprises a hip plate, an adapter plate, a thigh plate and a shank plate from the hip to the foot, the hip plate is symmetrically arranged left and right and is rotationally connected through a third hinge, the second back plate is rotationally connected with the hip plate through the second hinge, a fourth supporting rod is arranged below the third hinge, the fourth supporting rod is horizontally fixed on the side wall of the second supporting rod, and the adapter plate is fixed on the main body support; the turnover mechanism is provided with two groups of turnover mechanisms which are symmetrically arranged below the hip plates respectively and comprises a fifth hinging seat, a third electric push rod and a sixth hinging seat, wherein the fifth hinging seat is fixed on the side wall of the fourth supporting rod, the sixth hinging seat is fixed at the bottom of the hip plates, and the fixed end of the third electric push rod is hinged with the fifth hinging seat, and the telescopic end of the third electric push rod is hinged with the sixth hinging seat.

Further, the leg bending mechanism is arranged below the thigh plate and the shank plate, the thigh plate is rotationally connected with the adapter plate through a fourth hinge, a fifth supporting rod is arranged below the adapter plate, the fifth supporting rod is fixed in the outer frame, and the thigh plate is rotationally connected with the shank plate through a fifth hinge; the leg bending mechanism comprises a seventh hinging seat, a fourth electric push rod and an eighth hinging seat, wherein the seventh hinging seat is fixed at the middle part of the side wall of the fifth supporting rod, which faces to the foot, the eighth hinging seat is fixed at the bottom of the lower leg plate, and the fixed end of the fourth electric push rod is hinged with the seventh hinging seat, and the telescopic end of the fourth electric push rod is hinged with the eighth hinging seat.

Further, fixed plates are respectively fixed at the front positions of the left and right side walls of the lower leg plate, a second rotating roller is rotatably connected between the two fixed plates, and the bottom of the second rotating roller and the bottom of the lower leg plate are on the same plane in a lying state.

Further, the top surfaces of the first support rod, the second support rod, the fourth support rod and the fifth support rod are on the same plane with the top surface of the outer frame, the width of the second support rod is larger than that of the second hinge, the width of the fourth support rod is larger than that of the third hinge, and the width of the fifth support rod is larger than the distance from the front end of the hip plate to the rear end of the thigh plate.

Compared with the prior art, the utility model has the beneficial technical effects that:

According to the electric nursing bed board, the back lifting mechanism is arranged, so that a patient is converted into a sitting posture from a lying posture, and the electric nursing bed board can be combined with the sideslip prevention mechanism to drive the first hinge between the first back board and the second back board to rotate upwards for lifting through the first electric push rod in the rotating lifting process of the back boards, so that the sideslip prevention effect is achieved, the patient is effectively protected, and the occurrence of safety accidents is reduced.

In addition, by arranging the first rotating roller, the friction force between the back plate and the back lifting mechanism in the process of rotating and lifting the back plate is reduced, the abrasion of the back plate caused by overlarge friction force is reduced, and a certain protection effect is achieved on the back plate; by arranging the left turning mechanism and the right turning mechanism, the nursing bed has the function of turning left and right at the same time, so that the comfort level of a patient lying in bed is improved; by arranging the leg bending mechanism, the legs of the patient are converted into leg bending postures, so that the comfort level of the patient is improved, and nursing staff can conveniently care the leg bending state of the patient; by arranging the second rotating roller, the sliding friction between the lower leg plate and the main body bracket is converted into rotating friction when the lower leg plate is converted into a curved leg posture, so that the damage of friction to the nursing bed board is reduced, and a certain protection effect is achieved on the nursing bed board; through reasonable width and the height that set up first bracing piece, second bracing piece, fourth bracing piece and fifth bracing piece for first bracing piece, second bracing piece, fourth bracing piece and fifth bracing piece play certain supporting role to the bed board, have guaranteed the stability of bed board.

Drawings

The utility model is further described with reference to the following description of the drawings.

Fig. 1 is a schematic perspective view of an electric nursing bed board of the utility model;

fig. 2 is a schematic top view of a main body bracket of the electric nursing bed board of the present utility model;

Fig. 3 is a left side view structure schematic diagram of the electric nursing bed board in the sitting and standing curved leg posture;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is an enlarged schematic view of the structure shown at A in FIG. 4;

Fig. 6 is a schematic top view of the electric nursing bed plate of the utility model in a sitting and standing curved leg posture;

fig. 7 is a left-side view schematic diagram of the electric nursing bed plate in the rightward turning;

Fig. 8 is a schematic diagram of a structure of the electric nursing bed plate for turning left and right.

Reference numerals illustrate: 1. a main body bracket; 101. an outer frame; 102. a first support bar; 103. a second support bar; 104. a third support bar; 105. a fourth support bar; 106. a fifth support bar; 2. a bed board; 201. a back plate; 201a, a first back plate; 201b, a second back plate; 202. a hip plate; 203. an adapter plate; 204. thigh plate; 205. a lower leg plate; 3. a sideslip prevention mechanism; 301. a first hinge base; 302. the second hinge seat; 303. a first electric push rod; 4. a back lifting mechanism; 401. a rotating lever; 402. a connecting rod; 403. a first rotating roller; 404. a third hinge base; 405. a fourth hinge base; 406. a second electric push rod; 5. a first hinge; 6. a second hinge; 7. a third hinge; 8. a fourth hinge; 9. a fifth hinge; 10. a turning-over mechanism; 1001. a fifth hinge base; 1002. a third electric push rod; 1003. a sixth hinge base; 11. a leg bending mechanism; 1101. a seventh hinge base; 1102. a fourth electric push rod; 1103. an eighth hinge base; 12. a fixing plate; 13. and a second rotating roller.

Detailed Description

The following description of the embodiments of the present utility model will be made in detail with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to the drawings, fig. 1 is a schematic perspective view of an electric nursing bed board of the present utility model; fig. 2 is a schematic top view of a main body bracket of the electric nursing bed board of the present utility model; fig. 3 is a left side view structure schematic diagram of the electric nursing bed board in the sitting and standing curved leg posture; FIG. 4 is a schematic cross-sectional view of FIG. 3; FIG. 5 is an enlarged schematic view of the structure shown at A in FIG. 4; fig. 6 is a schematic top view of the electric nursing bed plate of the utility model in a sitting and standing curved leg posture; fig. 7 is a left-side view schematic diagram of the electric nursing bed plate in the rightward turning; fig. 8 is a schematic diagram of a structure of the electric nursing bed plate for turning left and right.

In a specific embodiment, as shown in fig. 1 to 6, an electric nursing bed board is horizontally placed on the top surface of a bed frame, and comprises a main body bracket 1, a bed board 2, an sideslip prevention mechanism 3 and a back lifting mechanism 4, wherein the bed board 2 sequentially comprises a back board 201 and leg boards from head to foot, the back board 201 is symmetrically arranged left and right and is rotationally connected through a first hinge 5, the back board 201 sequentially comprises a first back board 201a and a second back board 201b from outside to inside of the bed, the first back board 201a is rotationally connected with the second back board 201b through the first hinge 5, and the second back board 201b is rotationally connected with the leg boards through a second hinge 6; the back lifting mechanism 4 is arranged below the back plate 201 and can drive the back plate 201 to rotate and lift; the sideslip prevention mechanism 3 is provided with two groups of bottoms of two back plates 201 and symmetrically arranged left and right, the sideslip prevention mechanism 3 comprises a first hinging seat 301, a second hinging seat 302 and a first electric push rod 303, the first hinging seat 301 is fixed at the bottom of the second back plate 201b, the second hinging seat 302 is fixed at the bottom of the first back plate 201a, and the fixed end of the first electric push rod 303 is hinged with the first hinging seat 301, and the telescopic end is hinged with the second hinging seat 302.

Through setting up the mechanism 4 of playing the back for patient changes to sitting posture by lying down the gesture, combines and prevents sideslip mechanism 3 can also be at back board 201 rotatory in-process of rising, and the first hinge 5 between first back board 201a and the second back board 201b that drive first back board 201a through first electric putter 303 is the pivot and upwards rotates to rise, plays and prevents sideslip effect, effectually protected patient, reduces the emergence of incident.

In one embodiment of the present utility model, as shown in fig. 2 to 4, the main body support 1 includes an outer frame 101, a first support bar 102, a second support bar 103 and a third support bar 104, the first support bar 102 and the second support bar 103 are both fixed inside the outer frame 101 and arranged along the width direction of the outer frame 101, the first support bar 102 is arranged below the back plate 201, the second support bar 103 is arranged below the second hinge 6, and two third support bars 104 are symmetrically fixed on the side walls of the second support bar 103 with cantilever ends facing the first support bar 102; the back lifting mechanism 4 comprises a rotating rod 401, a connecting rod 402, a first rotating roller 403, a third hinging seat 404, a fourth hinging seat 405 and a second electric push rod 406, wherein the rotating rod 401 is rotationally connected between the two third supporting rods 104, the left end of the rotating rod passes through the left third supporting rod 104 and is fixedly connected with the fourth hinging seat 405, the third hinging seat 404 is fixed on the side wall of the first supporting rod 102, the fixed end of the second electric push rod 406 is hinged with the third hinging seat 404, the telescopic end of the second electric push rod is hinged with the fourth hinging seat 405, the two connecting rods 402 are symmetrically arranged between the two third supporting rods 104, one end of each connecting rod 402 is fixed on the rotating rod 401, the other end of each connecting rod is in cantilever arrangement, and the first rotating roller 403 is rotationally connected between the two connecting rods 402 and is positioned at the cantilever end of each connecting rod 402.

By providing the first rotating roller 403, friction force between the back plate 201 and the back lifting mechanism 4 in the process of rotating and lifting the back plate 201 is reduced, abrasion of the back plate 201 caused by overlarge friction force is reduced, and a certain protection effect is achieved on the back plate 201.

In a specific embodiment of the present utility model, as shown in fig. 1, 2, 4, 5, 7 and 8, the turnover device further comprises a turnover mechanism 10, wherein the leg plate sequentially comprises a hip plate 202, an adapter plate 203, a thigh plate 204 and a shank plate 205 from the hip to the foot, two hip plates 202 are symmetrically arranged left and right and are rotationally connected through a third hinge 7, a second back plate 201b is rotationally connected with the hip plate 202 through a second hinge 6, a fourth supporting rod 105 is arranged below the third hinge 7, the fourth supporting rod 105 is horizontally fixed on the side wall of the second supporting rod 103, and the adapter plate 203 is fixed on the main body bracket 1; the turning mechanism 10 is provided with two groups of turning mechanisms and is symmetrically arranged below the two hip plates 202 respectively, the turning mechanism 10 comprises a fifth hinging seat 1001, a third electric push rod 1002 and a sixth hinging seat 1003, the fifth hinging seat 1001 is fixed on the side wall of the fourth supporting rod 105, the sixth hinging seat 1003 is fixed at the bottom of the hip plates 202, the fixed end of the third electric push rod 1002 is hinged with the fifth hinging seat 1001, and the telescopic end is hinged with the sixth hinging seat 1003.

By arranging the left turning mechanism 10 and the right turning mechanism 10, the nursing bed has the function of turning left and right at the same time, and the comfort level of the patient lying in bed is improved.

In an embodiment of the present utility model, as shown in fig. 1 to 4, the leg bending mechanism 11 is further included, the leg bending mechanism 11 is disposed below the thigh plate 204 and the shank plate 205, the thigh plate 204 is rotationally connected with the adapter plate 203 through the fourth hinge 8, the fifth supporting rod 106 is disposed below the adapter plate 203, the fifth supporting rod 106 is fixed in the outer frame 101, and the thigh plate 204 is rotationally connected with the shank plate 205 through the fifth hinge 9; the leg bending mechanism 11 includes a seventh hinge seat 1101, a fourth electric push rod 1102 and an eighth hinge seat 1103, the seventh hinge seat 1101 is fixed in the middle of the side wall of the fifth support rod 106 facing the foot, the eighth hinge seat 1103 is fixed at the bottom of the lower leg plate 205, the fixed end of the fourth electric push rod 1102 is hinged with the seventh hinge seat 1101, and the telescopic end is hinged with the eighth hinge seat 1103.

By arranging the leg bending mechanism 11, the legs of the patient are converted into leg bending postures, so that the comfort of the patient is improved, and nursing staff can conveniently care the leg bending state of the patient.

In an embodiment of the present utility model, as shown in fig. 1, the front portions of the left and right side walls of the lower leg plate 205 are respectively fixed with a fixed plate 12, and a second rotating roller 13 is rotatably connected between the two fixed plates 12, and the bottom of the second rotating roller 13 and the bottom of the lower leg plate 205 are on the same plane in the lying state.

By arranging the second rotating roller 13, the sliding friction between the lower leg plate 205 and the main body bracket 1 is converted into rotating friction when the lower leg plate is converted into the curved leg posture, so that the damage of friction to the nursing bed board is reduced, and a certain protection effect is achieved on the nursing bed board.

In an embodiment of the present utility model, as shown in fig. 4, the top surfaces of the first support bar 102, the second support bar 103, the fourth support bar 105 and the fifth support bar 106 are on the same plane with the top surface of the outer frame 101, the width of the second support bar 103 is larger than the width of the second hinge 6, the width of the fourth support bar 105 is larger than the width of the third hinge 7, and the width of the fifth support bar 106 is larger than the distance from the front end of the hip plate 202 to the rear end of the thigh plate 204.

Through the width and the height of reasonable setting first bracing piece 102, second bracing piece 103, fourth bracing piece 105 and fifth bracing piece 106 for first bracing piece 102, second bracing piece 103, fourth bracing piece 105 and fifth bracing piece 106 play certain supporting role to bed board 2, have guaranteed the stability of bed board 2.

When a patient needs to be converted from a lying posture to a sitting posture, the electric nursing bed board of the utility model starts the left and right first electric push rods 303, so that the telescopic ends of the first electric push rods 303 extend outwards, the left and right first electric push rods 303 respectively drive the first back plates 201a on the left and right sides to rotate upwards by taking the first hinge 5 between the first back plates 201a and the second back plates 201b as a rotating shaft until the first back plates 201a rotate to a proper position, then starts the second electric push rods 406, so that the telescopic ends of the second electric push rods 406 extend outwards to drive the fourth hinging seats 405 to rotate, the rotating fourth hinging seats 405 drive the rotating rods 401 to rotate, and the rotating rods 401 drive the first rotating rollers 403 between the two connecting rods 402 to rotate upwards, at the moment, the first rotating rollers 403 are in rotary contact with the back plates 201 and push the back plates 201 to rotate upwards by taking the second hinge 6 as the rotating shaft until the proper position, and in the process, the left and right side sliding plates 201a play a role in preventing; when the legs of the patient need to be converted into the leg bending postures, the fourth electric push rod 1102 is started, so that the telescopic end of the fourth electric push rod 1102 extends outwards, the lower leg plate 205 is driven to rotate upwards by taking the fifth hinge 9 as a rotating shaft, and when the lower leg plate 205 rotates upwards, an upward force is given to the thigh plate 204 to drive the thigh plate 204 to rotate upwards by taking the fourth hinge 8 as a rotating shaft, so that the leg bending state is realized; when the lying posture is required to be changed into the turning posture, the left or right turning is started according to the requirement, the third electric push rod 1002 on the left side or the right side is started, the telescopic end of the third electric push rod 1002 stretches out outwards, at the moment, the telescopic end of the third electric push rod 1002 pushes the corresponding hip plate 202 to rotate upwards by taking the third hinge 7 as a rotating shaft, and the hip plate 202 which rotates upwards drives the first back plate 201a and the second back plate 201b on the same side to rotate upwards, so that the turning function to the left or right is realized.

According to the electric nursing bed board, the back lifting mechanism 4 is arranged, so that a patient is converted from a lying posture to a sitting posture, and in combination with the sideslip prevention mechanism 3, the first hinge 5 between the first back board 201a and the second back board 201b, which are used for driving the first back board 201a by the first electric push rod 303, can be driven to rotate upwards for lifting by taking a rotating shaft in the rotating lifting process of the back board 201, so that the sideslip prevention effect is achieved, the patient is effectively protected, and the occurrence of safety accidents is reduced; in addition, by arranging the first rotating roller 403, the friction force between the back plate 201 and the back lifting mechanism 4 in the process of rotating and lifting the back plate 201 is reduced, the abrasion of the back plate 201 caused by overlarge friction force is reduced, and a certain protection effect is achieved on the back plate 201; by arranging the left turning mechanism 10 and the right turning mechanism 10, the nursing bed has the function of turning left and right at the same time, so that the comfort level of a patient lying in bed is improved; by arranging the leg bending mechanism 11, the legs of the patient are converted into leg bending postures, so that the comfort of the patient is improved, and nursing staff can conveniently care the leg bending state of the patient; by arranging the second rotating roller 13, the sliding friction between the lower leg plate 205 and the main body bracket 1 is converted into rotating friction when the lower leg plate is converted into a curved leg posture, so that the damage of friction to the nursing bed board is reduced, and a certain protection effect is achieved on the nursing bed board; through the width and the height of reasonable setting first bracing piece 102, second bracing piece 103, fourth bracing piece 105 and fifth bracing piece 106 for first bracing piece 102, second bracing piece 103, fourth bracing piece 105 and fifth bracing piece 106 play certain supporting role to bed board 2, have guaranteed the stability of bed board 2.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. An electric nursing bed board is kept flat on the top surface of a bed frame, which is characterized in that: the side-slipping prevention type bed comprises a main body support (1), a bed plate (2), a side-slipping prevention mechanism (3) and a back lifting mechanism (4), wherein the bed plate (2) sequentially comprises a back plate (201) and leg plates from the head to the foot, the back plate (201) is symmetrically arranged left and right and is rotationally connected through first hinges (5), the back plate (201) sequentially comprises a first back plate (201 a), a second back plate (201 b) from the outer side of the bed to the inner side of the bed, the first back plate (201 a) is rotationally connected with the second back plate (201 b) through the first hinges (5), and the second back plate (201 b) is rotationally connected with the leg plates through second hinges (6); the back lifting mechanism (4) is arranged below the back plate (201) and can drive the back plate (201) to rotate and lift; the side slip prevention mechanism (3) is provided with two groups of side slip prevention mechanisms and is symmetrically arranged at the bottoms of the back plates (201), the side slip prevention mechanism (3) comprises a first hinging seat (301), a second hinging seat (302) and a first electric push rod (303), the first hinging seat (301) is fixed at the bottom of the second back plate (201 b), the second hinging seat (302) is fixed at the bottom of the first back plate (201 a), and the fixed end of the first electric push rod (303) is hinged with the first hinging seat (301), and the telescopic end of the first electric push rod is hinged with the second hinging seat (302).

2. The motorized nursing bed board of claim 1, wherein: the main body support (1) comprises an outer frame (101), a first support rod (102), a second support rod (103) and a third support rod (104), wherein the first support rod (102) and the second support rod (103) are both fixed in the outer frame (101) and are arranged along the width direction of the outer frame (101), the first support rod (102) is arranged below the back plate (201), the second support rod (103) is arranged below the second hinge (6), and the two third support rods (104) are symmetrically fixed on the side wall of the second support rod (103) and the cantilever ends face the first support rod (102); the back lifting mechanism (4) comprises a rotating rod (401), a connecting rod (402), a first rotating roller (403), a third hinging seat (404), a fourth hinging seat (405) and a second electric push rod (406), wherein the rotating rod (401) is rotationally connected between the two third supporting rods (104) and the left end of the rotating rod passes through the left side of the third supporting rod (104) and then is fixedly connected with the fourth hinging seat (405), the third hinging seat (404) is fixed on the side wall of the first supporting rod (102), the fixed end of the second electric push rod (406) is hinged with the third hinging seat (404), the telescopic end of the second electric push rod is hinged with the fourth hinging seat (405), the two connecting rods (402) are symmetrically arranged between the two third supporting rods (104), one ends of the connecting rods (402) are fixed on the rotating rod (401) and the other ends of the connecting rods are cantilever-arranged, and the first rotating roller (403) is rotationally connected between the two connecting rods (402) and is positioned at the cantilever ends of the connecting rods (402).

3. The motorized nursing bed board of claim 2, wherein: the turnover device comprises a body support (1) and a turnover mechanism (10), wherein the turnover mechanism comprises a hip plate (202), an adapter plate (203), a thigh plate (204) and a shank plate (205) from the hip to the foot, the hip plate (202) is symmetrically arranged left and right and is rotationally connected through a third hinge (7), a second back plate (201 b) is rotationally connected with the hip plate (202) through a second hinge (6), a fourth supporting rod (105) is arranged below the third hinge (7), the fourth supporting rod (105) is horizontally fixed on the side wall of the second supporting rod (103), and the adapter plate (203) is fixed on the body support (1); the turnover mechanism (10) is provided with two groups of turnover mechanisms and is symmetrically arranged below the hip plates (202), the turnover mechanism (10) comprises a fifth hinging seat (1001), a third electric push rod (1002) and a sixth hinging seat (1003), the fifth hinging seat (1001) is fixed on the side wall of the fourth supporting rod (105), the sixth hinging seat (1003) is fixed at the bottom of the hip plates (202), and the fixed end of the third electric push rod (1002) is hinged with the fifth hinging seat (1001) and the telescopic end of the third electric push rod is hinged with the sixth hinging seat (1003).

4. The motorized nursing bed plate of claim 3, wherein: the leg bending mechanism (11) is arranged below the thigh plate (204) and the shank plate (205), the thigh plate (204) is rotationally connected with the adapter plate (203) through a fourth hinge (8), a fifth supporting rod (106) is arranged below the adapter plate (203), the fifth supporting rod (106) is fixed in the outer frame (101), and the thigh plate (204) is rotationally connected with the shank plate (205) through a fifth hinge (9); the leg bending mechanism (11) comprises a seventh hinging seat (1101), a fourth electric push rod (1102) and an eighth hinging seat (1103), wherein the seventh hinging seat (1101) is fixed at the middle part of the side wall of the fifth supporting rod (106) facing the foot, the eighth hinging seat (1103) is fixed at the bottom of the lower leg plate (205), the fixed end of the fourth electric push rod (1102) is hinged with the seventh hinging seat (1101), and the telescopic end of the fourth electric push rod is hinged with the eighth hinging seat (1103).

5. The motorized nursing bed board of claim 4, wherein: the front positions of the left side wall and the right side wall of the lower leg plate (205) are respectively fixed with a fixed plate (12), a second rotating roller (13) is rotatably connected between the two fixed plates (12), and the bottom of the second rotating roller (13) and the bottom of the lower leg plate (205) are on the same plane in a lying state.

6. The motorized nursing bed board of claim 5, wherein: the first support rod (102), the second support rod (103), the fourth support rod (105), the top surface of the fifth support rod (106) and the top surface of the outer frame (101) are on the same plane, the width of the second support rod (103) is larger than the width of the second hinge (6), the width of the fourth support rod (105) is larger than the width of the third hinge (7), and the width of the fifth support rod (106) is larger than the distance from the front end of the hip plate (202) to the rear end of the thigh plate (204).