CN116138962B

CN116138962B - A device for assisting the elderly in turning over in bed

Info

Publication number: CN116138962B
Application number: CN202310131524.3A
Authority: CN
Inventors: 齐瑞文; 祝昆皓; 舒余安
Original assignee: Nanchang University
Current assignee: Nanchang University
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2025-03-21
Anticipated expiration: 2043-02-17
Also published as: CN116138962A

Abstract

The present invention relates to the technical field of elderly care equipment, and specifically to an auxiliary device for elderly people turning over in bed, comprising a bed board, on which a plurality of flaps are evenly and equidistantly laid, adjacent flaps are hingedly connected, and a belt transmission device is arranged along the outer side of the flap as a whole. The belt transmission device comprises a transmittable belt, and a plurality of mattresses are laid around the outer side of the belt corresponding to the flap as a whole, a chain transmission device is arranged on the side of the bed board corresponding to the belt transmission device, and traction and lifting devices are arranged at both ends of the flap corresponding to the bed board. The traction and lifting devices can lift two flaps close to the outer side of the bed board, so that the side of the flap as a whole is in an arc shape with the arc center facing upward, and the chain transmission device can drive the belt transmission of the belt transmission device, thereby driving the mattress as a whole to rotate around the flap as a whole; the device can effectively help the elderly to turn over, thereby facilitating the staff or family members to wash the elderly's body and change clothes.

Description

Old person stands up auxiliary device in bed

Technical Field

The invention relates to the technical field of nursing instruments for the elderly, in particular to a turning-over auxiliary device for the elderly in bed.

Background

The traditional Chinese is that 'the early-care is first' and the old is the traditional American of the Chinese family in terms of historic culture inheritance, the life of the old is gradually prolonged along with the continuous improvement of life quality, the aging of the society becomes a trend in the future, how to care the aged is an important link, when the aged can not normally move by oneself due to aging or diseases, the aged is difficult to turn over in bed, and the aged needs to be helped by a worker or family member to wash and protect the body of the aged and replace clothes by means of a turning-over auxiliary device to help the aged to finish the turning-over action on the bed;

The utility model discloses a nursing bed for the elderly to stand up is disclosed to publication number CN209091935U, this patent is including the fixed plate, first bed board, fan and second bed board, first bed board and second bed board pass through axis of rotation swing joint, the gasbag is all installed to the lower extreme of first bed board and second bed board, the hose is installed in the middle of the lower extreme of gasbag, the other end of hose is installed on the fan, start corresponding fan, realize adorning gas to the gasbag, simultaneously can support first bed board or second bed board and overturn, realize the effect of standing up, this patent may have some defects, lie in the position between first bed board and second bed board when the elderly, if want to help the elderly to stand up to one side, realize adorning gas to the gasbag, can support the upset with corresponding bed board, can exist certain contained angle between first bed board and the second bed board this moment, because old person's self gravity can make its card in this contained angle sunken department, can cause old person skin and meat or skeleton uncomfortable condition, then need be a pair of people and carry out the upset through the cooperation and carry out the device that stands up, the old person has a smooth and easy to make the invention, the device that stands up has a help the elderly to be had the health condition, can be had the help to turn up, the device for this invention has the health to be had, to help the device to turn up, for the elderly to be had the device that is suitable for the elderly to be had the health to be had.

Disclosure of Invention

In order to solve the problems that in the prior art, when the old people lie between the first bed board and the second bed board, if the old people want to help the old people to turn over to one side, a certain included angle is formed between the first bed board and the second bed board, and the old people possibly clamp the included angle at the included angle due to the gravity of the old people, so that the old people are possibly uncomfortable in skin, meat or bones, the invention provides the old people turning over auxiliary device for the bed.

The technical scheme of the invention is as follows:

The invention provides a turning-over auxiliary device for old people lying in bed, which comprises a bed plate, wherein supporting feet are correspondingly arranged below the bed plate, a plurality of turning plates are uniformly and equidistantly paved on the bed plate, adjacent turning plates are hinged and connected, a belt transmission device is arranged along the whole outer side of each turning plate, the belt transmission device comprises a belt capable of driving, a plurality of mattresses are paved around the whole outer side of each turning plate, a chain transmission device is arranged on the side part of the bed plate corresponding to the belt transmission device, traction lifting devices are arranged at two ends of each turning plate, which correspond to the bed plate, of the bed plate, the traction lifting devices can lift two turning plates close to the outer side of the bed plate, the whole side part of each turning plate is in an arc shape with an upward arc center, and the chain transmission device can drive the belt transmission of the belt transmission device, so that the mattresses are driven to integrally rotate around the turning plates.

Further, all the turning plates are paved along the length direction of the bed board, the hinge joint between every two adjacent turning plates is provided with an angle limit, and when the turning plates rotate around the corresponding hinge points, the angle between the turning plates and the adjacent turning plates can be turned from 180 degrees to 150 degrees at most.

Further, the belt transmission device comprises a plurality of belt pulley mounting grooves which are equidistantly arranged on the outer side walls of the two turning plates close to the outer side of the bed plate, belt pulleys are arranged in the belt pulley mounting grooves, shaft holes are correspondingly formed in the side walls of the belt pulley mounting grooves, the shaft holes continuously penetrate through all belt pulley mounting grooves on the same side to the end parts of the turning plates, correspondingly positioned in the shaft holes on the same side, the belt pulley transmission shafts are rotatably arranged and matched with the belt pulley transmission shafts, the belt pulley transmission shafts penetrate through the axes of the corresponding belt pulleys and are fixedly connected, and the belt is arranged on the outer sides of the whole belt pulleys corresponding to the two turning plates on the outer side of the bed plate.

Further, the chain transmission device comprises first chain wheels, one of the belt pulley transmission shafts stretches out of the corresponding shaft hole to the outer end of the turning plate, the first chain wheels are fixedly mounted on the end portions of the belt pulley transmission shafts in the coaxial center direction, chain grooves are formed in the end portions of the bed plates, corresponding to the bottoms of the outer ends of the belt pulley transmission shafts, fixing plates are fixedly mounted on the outer sides of the fixing plates, corresponding to the belt pulley transmission shafts, of first rotating shafts, first rotating shafts are fixedly mounted on second chain wheels, corresponding to the first chain wheels, the outer ends of the first rotating shafts are fixedly mounted with rocking handles, corresponding to the second chain wheels, third chain wheels are arranged below the bed plates, spring shrinkage tensioning devices are arranged corresponding to the third chain wheels, third chain wheels are connected with tensioning ends of the spring shrinkage tensioning devices, fourth chain wheels are rotatably mounted in positions between the corresponding to the second chain wheels and the third chain wheels, and chains which are integrally and externally adapted to the fourth chain wheels are clamped outside the chain rings.

Further, the spring shrinkage overspeed device tensioner includes fixed mounting in the bed board below and the deflector that corresponds with the second sprocket, the deflector corresponds the both sides of second sprocket and all sets up the direction through-hole in same horizontal direction, the movable rod of movable mounting adaptation in the direction through-hole, a pair of movable rod between correspond first pivot fixed mounting second pivot, the third sprocket rotates and installs in the second pivot lateral wall, the guide slot is seted up along the movable rod lateral wall in the direction through-hole, the movable rod lateral wall corresponds the guide post of one side fixed mounting slip adaptation that the third sprocket was kept away from to the guide slot, through setting up the spring fixed connection of adaptation between guide post and the guide slot opposite side lateral wall, the spring keeps compressed state.

Further, pull and lift up the device and set up in the U type support pole at bed board both ends including the adaptation, the both ends tip that the bed board both sides correspond U type support pole rotates and installs the third pivot, the both ends tip and the third pivot lateral wall fixed connection that corresponds of U type support pole, the bed board bottom corresponds the third pivot that is located same one side and sets up power device and drive, all U type support pole correspond two equal fixed mounting winding wheels that turn over the board that are close to the bed board outside, the receipts winding rope of winding wheel and the tip fixed connection that corresponds the board.

Further, the power device comprises a power module fixedly arranged at the bottom of the bed board, the power module is provided with output shafts corresponding to the two third rotating shafts on the same side, and an adaptive transmission belt is sleeved between the output shafts and the corresponding third rotating shafts.

Further, the front section of the winding rope is kept loose, the rear section of the winding rope is kept tight, and when the U-shaped support rod is lifted to a certain acute angle along the third rotating shaft, the winding rope starts to straighten and keep tight.

Further, the outer diameter value of the belt pulley is larger than the thickness value of the belt pulley mounting groove.

Further, the back of the mattress is connected with the corresponding belt through the sticking of the magic tape, and the adjacent mattresses are mutually adjacent.

The invention has the following advantages:

According to the invention, the U-shaped support rods are driven by the pair of output shafts of the power module to lift at a constant speed, so that the whole lateral part of the turning plate is in an arc shape with an upward arc center and is separated from contact with the bed board, and then the rocking handle is rocked in the direction corresponding to the turning over of the old people, so that the belt is driven to rotate, the whole mattress rotates around the whole turning plate in the direction opposite to the turning over of the old people, the old people are assisted to turn over by the sliding friction force between the rotating mattress and the old people, meanwhile, the uncomfortable condition of the old people can be effectively relieved due to the smooth transition between the adjacent turning plates, and the mattress which passes over the body of the old people can be detached for washing and protecting in the turning over process, and is adhered with a clean mattress through magic tape.

Because the gravity center born by the whole turning plate is deviated when the old people turn over, the turning plate corresponding to one side turned over by the old people gradually approaches to the horizontal through the pulling action of the winding rope, and the inclination angle of the turning plate corresponding to the opposite side turned over by the old people is increased, so that the state of the sideways can be stably maintained by means of the wrapped support of the turning plate after the old people turn over.

After the old person turns over, staff or family members can wash and protect the old person's health and change clothes, and then reverse through starting power module, can make U type support pole at uniform velocity drop to normal position while turning over the board whole and continue to rest on the bed board, through the elasticity recovery effect of spring for the chain can continue to maintain tight, thereby the use of being convenient for next time.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a right side view of fig. 1.

Fig. 4 is an enlarged view of the partial structure of I of fig. 1.

Fig. 5 is an enlarged view of the partial structure II of fig. 3.

Fig. 6 is an enlarged view of a partial structure III of fig. 3.

Fig. 7 is an enlarged view of the IV partial structure of fig. 3.

Fig. 8 is a working state diagram of the present invention.

Detailed Description

In order to facilitate understanding of the invention by those skilled in the art, a specific embodiment of the invention is described below with reference to the accompanying drawings.

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

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying 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 application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It will be understood that when an element is referred to as being "mounted" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the invention provides a turning-over auxiliary device for an old person lying in bed, which comprises a bed plate 1, wherein supporting feet 11 are correspondingly arranged below the bed plate 1, as shown in fig. 2 and 3, a plurality of turning plates 2 are correspondingly and uniformly paved on the bed plate 1 at equal intervals along the length direction of the bed plate, the adjacent turning plates 2 are hinged and are provided with angle limiting parts, and when the turning plates 2 rotate around corresponding hinge points, the angle between the turning plates 2 and the adjacent turning plates 2 can be turned over from 180 degrees to 150 degrees at most.

As shown in fig. 1 and 2, a plurality of pulley mounting grooves 21 are formed in the outer side walls of two turning plates 2 close to the outer side of the bed plate 1 at equal intervals, as shown in fig. 4, a pulley 3 is arranged in each pulley mounting groove 21, the outer diameter value of each pulley 3 is larger than the thickness value of each pulley mounting groove 21, shaft holes 22 are correspondingly formed in the side walls of the pulley mounting grooves 21, the shaft holes 22 continuously penetrate through all the pulley mounting grooves 21 on the same side to the end parts of the turning plates 2, and correspondingly positioned shaft holes 22 on the same side are rotatably provided with adapted pulley transmission shafts 31, and the pulley transmission shafts 31 penetrate through the axes of the corresponding pulleys 3 and are fixedly connected.

The belt 32 is installed on the whole outer sides of a pair of belt pulleys 3 of two turning plates 2 corresponding to the outer sides of the bed plate 1, a plurality of mattresses 4 are laid around the corresponding turning plates on the whole outer sides of all the belt 32, the adjacent mattresses 4 are mutually adjacent, and the back surfaces of the mattresses 4 are in adhesive connection with the corresponding belt 32 through the magic tape 41.

As shown in fig. 2 and 5, one of the pulley transmission shafts 31 extends out of the corresponding shaft hole 22 to the outer end of the turning plate 2, the end part of the pulley transmission shaft 31 is fixedly provided with a first sprocket wheel 5 with coaxial center, as shown in fig. 6, the end part of the bed plate 1 is provided with a chain groove 12 corresponding to the outer end of the pulley transmission shaft 31, the bottom of the bed plate 1 corresponding to the outer end of the pulley transmission shaft 31 is fixedly provided with a fixing plate 51, the outer side of the fixing plate 51 corresponds to the pulley transmission shaft 31 and is rotatably provided with a first rotating shaft 52 parallel to the pulley transmission shaft 31, the side wall of the first rotating shaft 52 corresponds to the first sprocket wheel 5 and is fixedly provided with a second sprocket wheel 53, and the outer end of the first rotating shaft 52 corresponds to a fixed installation rocking handle 54.

As shown in fig. 7, a guide plate 6 is fixedly installed below the bed plate 1 corresponding to the second sprocket 53, guide through holes 61 are formed in the same horizontal direction on two sides of the guide plate 6 corresponding to the second sprocket 53, an adapted movable rod 62 is movably installed in the guide through holes 61, as shown in fig. 6, a second rotating shaft 63 is fixedly installed between a pair of the movable rods 62 corresponding to the first rotating shaft 52, a third sprocket 55 is rotatably installed on the side wall of the second rotating shaft 63 corresponding to the second sprocket 53, a fourth sprocket 56 is rotatably installed in the chain groove 12 corresponding to the position between the second sprocket 53 and the third sprocket 56, and an adapted chain 57 is sleeved on the outer sides of the whole of the first sprocket 5, the second sprocket 53, the third sprocket 55 and the fourth sprocket 56, wherein the fourth sprocket 56 is clamped outside the chain 57.

As shown in fig. 6, a guiding groove 64 is formed in the guiding through hole 61 along the side wall of the movable rod 62, a guiding post 65 in sliding fit is fixedly mounted on the side of the side wall of the movable rod 62, which is far away from the third sprocket 55, corresponding to the guiding groove 64, the guiding post 65 is fixedly connected with the side wall of the other side of the guiding groove 64 through a spring 66 in fit, and the spring 66 is kept in a compressed state.

As shown in fig. 1 and 2, two ends of the end part of the bed board 1 corresponding to the turning plate 2 are provided with adaptive U-shaped support rods 7, two ends of the two sides of the bed board 1 corresponding to the two ends of the U-shaped support rods 7 are rotatably provided with third rotating shafts 71, and two ends of the U-shaped support rods 7 are fixedly connected with the corresponding side walls of the third rotating shafts 71.

As shown in fig. 3, the power module 8 is fixedly mounted on the bottom of the bed board 1 corresponding to the third rotating shafts 71 located on the same side, output shafts 81 are respectively provided on the power module 8 corresponding to the two third rotating shafts 71 on the same side, and an adapted transmission belt 82 is sleeved between the output shafts 81 and the corresponding third rotating shafts 71.

As shown in fig. 2, all the U-shaped bracket rods 7 are fixedly provided with winding wheels 9 corresponding to the two turning plates 2 near the outer side of the bed board 1, the winding ropes 91 of the winding wheels 9 are fixedly connected with the ends of the corresponding turning plates 2, the front sections of the winding ropes 91 are kept loose, the rear sections of the winding ropes are kept tight, and when the U-shaped bracket rods 7 are lifted to a certain acute angle along the third rotating shaft 71, the winding ropes 91 start to be straightened and kept tight.

When the bed mattress is used, an old person lies on the bed mattress 4, when the old person needs to turn over to wash the body or change clothes, the power module 8 is started to forward, a pair of output shafts 81 of the power module 8 drive corresponding third rotating shafts 71 to rotate at constant speed through the transmission belt 82, at the moment, the third rotating shafts 71 drive corresponding U-shaped support rods 7 to lift up at constant speed, after the U-shaped support rods 7 are lifted up to a certain acute angle along the third rotating shafts 71, the winding ropes 91 start to straighten and keep tight, the U-shaped support rods 7 continue to lift up at constant speed, at the moment, the winding ropes 91 pull two turning plates 2 close to the outer side of the bed board 1 to lift up, and because the hinged connection parts between the adjacent turning plates 2 are provided with angle limiting, the whole side parts of the turning plates 2 are arc-shaped with the arc centers upwards, namely, the adjacent turning plates 2 are in a smooth transition mode, uncomfortable conditions of the old person can be effectively relieved, when the U-shaped support rods 7 are lifted up to be perpendicular to the bed board 1, the third rotating shafts 71 stop driving the corresponding third rotating shafts 71, at the moment, the pair of U-shaped support rods 7 at the two ends of the U-shaped support rods 1 are separated from the whole turning plates 2 to be contacted with the bed board 1.

When two turning plates 2 close to the outer side of the bed plate 1 are lifted upwards, the pulley transmission shaft 31 provided with the first chain wheel 5 pulls the third chain wheel 55 to the second chain wheel 53 along with the lifting of the turning plates 2 through the traction of the chain 57, at the moment, the third chain wheel 55, the second rotating shaft 63 and the movable rod 62 integrally move along the guide through holes 61, the corresponding springs 66 are compressed by the guide posts 65, and the chain 57 can be kept tight continuously through the reaction of the elastic force of the springs 66.

At this time, the rocking handle 54 is rocked in the direction corresponding to the direction that the old people want to turn over, the corresponding second chain wheel 53 is driven to rotate, the belt pulley transmission shaft 31 connected with the first chain wheel 5 is driven to rotate through the transmission of the chain 7, all belt pulleys 3 on the shaft of the rotating belt pulley transmission shaft 31 are driven to rotate, as the mattress 4 and the belt 32 are stuck and connected through the magic tape 41, the whole mattress 4 can rotate around the whole turning plate 2 in the opposite direction to the direction that the old people want to turn over, and the old people can be assisted to turn over by the sliding friction force between the rotating mattress 4 and the old people, and the mattress 4 can be detached and washed and protected after crossing the old people body due to the whole rotation of the mattress 4, and a clean mattress is stuck and installed through the magic tape 41.

The gravity center that turns over the whole born of board 2 takes place to skew when old person turns over, because two board 2 that turn over the board 2 and be close to the bed board 1 outside are all by corresponding rolling rope 91 to articulated connection between the adjacent board 2 for the board 2 that turns over one side that corresponds old person turned over gradually approaches in the level, and the board 2 inclination that turns over the opposite side that corresponds old person increases, makes the old person turn over the back through receiving the effect of rolling rope 91 and can stably maintain the state of sideways with the help of the parcel formula support of board 2 this moment, and old person turns over the back, staff or family members can wash and protect the health of old person and change clothes.

After helping the old person to wash the body and replace clothes, the power module 8 is started to rotate reversely, the power module 8 drives the corresponding U-shaped support rod 7 to move down to the original position at a constant speed through the output shaft 81 of the power module, at the moment, the whole turning plate 2 is continuously placed on the bed board 1, and in addition, the third chain wheel 55, the second rotating shaft 63 and the movable rod 62 are integrally moved to the original position along the guide through hole 61 through the elastic force recovery function of the spring 66, so that the chain 57 can be continuously kept tight, and the next use is facilitated.

The embodiments of the present invention described above do not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention as set forth in the appended claims.

Claims

1. The turning-over auxiliary device for the old people in bed is characterized by comprising a bed board (1), wherein supporting feet (11) are correspondingly arranged below the bed board (1), a plurality of turning-over boards (2) are uniformly and equidistantly paved on the bed board (1), adjacent turning-over boards (2) are hinged, a belt transmission device is arranged along the whole outer side of each turning-over board (2), the belt transmission device comprises a belt (32) capable of being driven, a plurality of mattresses (4) are paved around the corresponding turning-over boards along the whole outer side of each belt (32), chain transmission devices are arranged on the side parts of the bed board (1) corresponding to the belt transmission devices, traction lifting devices are arranged at two ends of the bed board (1) corresponding to the turning-over boards (2), and can lift two turning-over boards (2) close to the outer side of the bed board (1) upwards, so that the whole side parts of the turning-over boards (2) are arc-shaped with arc centers upwards, and the chain transmission devices can drive the belt (32) of the belt transmission devices to drive the mattresses (4) to integrally rotate around the turning-over boards (2);

The belt transmission device comprises a plurality of belt pulley mounting grooves (21) which are equidistantly formed in the outer side walls of two turning plates (2) close to the outer side of the bed plate (1), belt pulleys (3) are arranged in the belt pulley mounting grooves (21), shaft holes (22) are correspondingly formed in the side walls of the belt pulley mounting grooves (21), the shaft holes (22) continuously penetrate through all belt pulley mounting grooves (21) on the same side to the end parts of the turning plates (2), belt pulley transmission shafts (31) which are correspondingly positioned on the shaft holes (22) on the same side and are rotatably mounted and matched are fixedly connected, the belt pulley transmission shafts (31) penetrate through the axes of the corresponding belt pulleys (3), and the belt (32) is mounted on the whole outer sides of a pair of belt pulleys (3) corresponding to the two turning plates (2) on the outer side of the bed plate (1);

The chain transmission device comprises first chain wheels (5), one belt wheel transmission shaft (31) stretches out of a corresponding shaft hole (22) to the outer end of a turning plate (2), the first chain wheels (5) fixedly install the end part of the belt wheel transmission shaft (31) along the coaxial center direction, a chain groove (12) is formed in the end part of the bed plate (1) corresponding to the outer end of the belt wheel transmission shaft (31), a fixed plate (51) is fixedly installed at the bottom of the end part of the bed plate (1) corresponding to the belt wheel transmission shaft (31), a first rotating shaft (52) parallel to the belt wheel transmission shaft (31) is rotatably installed on the outer side of the fixed plate (51), a second chain wheel (53) is fixedly installed on the side wall of the first rotating shaft (52), a rocking handle (54) is fixedly installed on the outer end of the first rotating shaft (52), a third chain wheel (55) is arranged below the bed plate (1) corresponding to the second chain wheel (53), a spring tensioning device is arranged below the third chain wheel (55), a spring tensioning device is arranged between the third chain wheel (55) and the spring tensioning device and the second chain wheel (53), the third chain wheel (55) is connected with the second chain wheel (53), and the second chain wheel (53) and the second chain wheel (55) rotates in the corresponding position The whole outer sides of the third chain wheel (55) and the fourth chain wheel (56) are sleeved with an adaptive chain (57), wherein the fourth chain wheel (56) is clamped outside the circle of the chain (57);

The spring shrinkage tensioning device comprises a guide plate (6) fixedly installed below a bed plate (1) and corresponding to a second sprocket (53), guide through holes (61) are formed in the two sides, corresponding to the second sprocket (53), of the guide plate (6) in the same horizontal direction, movable rods (62) are movably installed in the guide through holes (61) in a matched mode, a pair of movable rods (62) are fixedly installed with second rotating shafts (63) corresponding to first rotating shafts (52), the third sprocket (55) is rotatably installed on the side walls of the second rotating shafts (63), guide grooves (64) are formed in the guide through holes (61) along the side walls of the movable rods (62), guide columns (65) are fixedly installed on one sides, corresponding to the guide grooves (64), of the side walls, corresponding to the third sprocket (55), of the movable rods (62) in a matched mode, of sliding mode are fixedly connected with the side walls of the other sides of the guide columns (65) through springs (66), and the springs (66) are kept in a compressed state.

2. The device for assisting the turning over of the elderly in bed according to claim 1, wherein all the turning plates (2) are paved along the length direction of the bed plate (1), the hinged connection parts between the adjacent turning plates (2) are provided with angle limiting, and when the turning plates (2) rotate around the corresponding hinged points, the angle between the turning plates (2) and the adjacent turning plates (2) can be turned over from 180 degrees to 150 degrees at most.

3. The device for assisting in turning over the old people in bed according to claim 1, wherein the traction lifting device comprises U-shaped support rods (7) which are adaptively arranged at two ends of the bed plate (1), third rotating shafts (71) are rotatably arranged at two ends of the two sides of the bed plate (1) corresponding to the U-shaped support rods (7), the two ends of the U-shaped support rods (7) are fixedly connected with the side walls of the corresponding third rotating shafts (71), power devices are arranged at the bottoms of the bed plate (1) corresponding to the third rotating shafts (71) at the same side to drive, all the U-shaped support rods (7) are fixedly provided with winding wheels (9) corresponding to two turning plates (2) which are close to the outer side of the bed plate (1), and winding ropes (91) of the winding wheels (9) are fixedly connected with the ends of the corresponding turning plates (2).

4. The device for assisting the elderly to turn over in bed according to claim 3, wherein the power device comprises a power module (8) fixedly installed at the bottom of the bed board (1), the power module (8) is provided with output shafts (81) corresponding to two third rotating shafts (71) on the same side, and an adaptive transmission belt (82) is sleeved between the output shafts (81) and the corresponding third rotating shafts (71).

5. The device for assisting the elderly to turn over in bed according to claim 4, wherein the front section of the winding rope (91) is kept loose and the rear section is kept tight, and the winding rope (91) starts to straighten and keep tight after the U-shaped bracket rod (7) is lifted to a certain acute angle along the third rotating shaft (71) of the U-shaped bracket rod.

6. The device for assisting the elderly to turn over in bed according to claim 5, wherein the outer diameter of the belt pulley (3) is larger than the thickness of the belt pulley mounting groove (21).

7. The device for assisting the elderly to turn over in bed according to any one of claims 1 to 6, wherein the back of the mattress (4) is connected with the corresponding belt (32) by sticking a magic tape (41), and the adjacent mattresses (4) are mutually adjacent.