CN111938939B

CN111938939B - Rotary nursing bed and working method

Info

Publication number: CN111938939B
Application number: CN202010712624.1A
Authority: CN
Inventors: 王宝斌
Original assignee: Shandong Keyihong Intelligent Technology Co ltd
Current assignee: Shandong Keyihong Intelligent Technology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-07-06
Anticipated expiration: 2040-07-22
Also published as: CN111938939A

Abstract

The invention discloses a rotary nursing bed and a working method thereof, wherein the rotary nursing bed comprises a bed surface and a bedstead, the bed surface consists of an upper body bed surface, a fixed bed surface, a thigh bed surface, a leg bending bed surface and a tail end bed surface which are sequentially connected, and the upper body bed surface, the fixed bed surface, the thigh bed surface, the leg bending bed surface and the tail end bed surface are all formed by hinging a central bed surface and side-turning bed surfaces at two sides; supporting wheels are arranged below the side-turning bed surfaces of the upper body bed surface, the thigh bed surface and the tail end bed surface; when the side-turning bed surface is horizontal, the supporting wheels below the side-turning bed surface fall on the bed frame. The guardrail is arranged on the left side and the right side of the bed surface in a hinged and parallel connecting rod mode, the guardrail moves along with the turnover of the bed surface during turnover and is restrained by the parallel connecting rod, and the guardrail on the turnover side can keep moving in a vertical up-and-down mode no matter the bed surface turns over at any angle. The turning bed can realize left and right turning, and has the functions of rotating the bed surface and assisting getting out of the bed.

Description

Rotary nursing bed and working method

Technical Field

The invention relates to the technical field of nursing beds, in particular to a rotary nursing bed.

Background

With the increasing aging in China, the demand for the nursing bed in China is also increasing, which causes the blowout development of the nursing bed product, and the nursing bed is only used in medical institutions before and gradually enters every family nowadays.

The nursing bed is generally used for patients who are inconvenient to move and lie in bed for a long time, and diet and rehabilitation training needs to be carried out every day by taking the patients out of the bed with the help of nursing staff. The patient is helped to get on or off the bed only by manpower, which not only is a great burden for nursing staff, but also may cause artificial injuries such as bump, strain and the like to the patient due to improper exertion. The nursing bed can better help nursing staff to nurse patients in life, such as moving a dining table, a dining table plate, having a sitting function and the like, can well help the nursing staff to look after the patients, and simultaneously greatly reduces the burden of the nursing staff.

At present, guardrails of nursing beds in the market are fastened by bolts or welded and fixed on bed frames and can only be folded or lifted up and down. The guardrail needs to be put down mostly when the user turns over the body, the user can feel the extrusion feeling when the user does not put down the guardrail and turns over the body, and the user can fall down the bed when putting down the guardrail and turning over the body.

In addition, the existing rotary nursing beds in the market do not have the functions of turning over and rotating the bed surface.

Disclosure of Invention

The invention aims to provide a rotary nursing bed and a working method.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a rotary nursing bed comprises a bed surface and a bedstead, wherein the bed surface consists of an upper body bed surface, a fixed bed surface, a thigh bed surface, a leg bending bed surface and a tail end bed surface which are sequentially connected, and the upper body bed surface, the fixed bed surface, the thigh bed surface, the leg bending bed surface and the tail end bed surface are all formed by hinging a central bed surface and side-turning bed surfaces at two sides;

supporting wheels are arranged below the side-turning bed surfaces of the upper body bed surface, the thigh bed surface and the tail end bed surface; when the side-turning bed surface is horizontal, the supporting wheels below the side-turning bed surface fall on the bed frame;

the left side and the right side of the upper body bed surface are both provided with upper body guardrails in a hinged mode through hinge shafts, at least one hinge shaft of the upper body guardrails on the left side and the right side is also hinged with a first connecting piece, the other end of each connecting piece is hinged with one end of a parallel connecting rod, the other end of each parallel connecting rod is hinged with a second connecting piece, and the second connecting pieces are hinged with the central bed surface of the upper body bed surface;

the left side and the right side of the thigh bed surface are both provided with lower body guardrails in a hinged mode, at least one hinged shaft of the lower body guardrails on the left side and the right side is hinged with a third connecting piece, the other end of each connecting piece is hinged with one end of a parallel connecting rod, the other end of each parallel connecting rod is hinged with a fourth connecting piece, and the fourth connecting pieces are hinged with the central bed surface of the thigh bed surface;

the bed comprises a bed frame and is characterized in that the front end, the middle part and the tail end of the bed frame are fixedly connected with cross beams, the middle parts of the cross beams are fixedly provided with supports, and the supports are hinged with a central bed surface at corresponding positions.

The rotary nursing bed comprises an upper body bed surface, a lower body bed surface, a middle bed surface and a lower bed surface, wherein the middle bed surface is fixedly connected with the upper body bed surface, the middle bed surface is fixedly connected with the lower part of the middle bed surface, the lower part of the middle bed surface is fixedly connected with the lower part of the middle bed surface, the lower part of the middle.

The rotary nursing bed is characterized in that a leg bending motor is hinged to the lower portion of the center of the front portion of the thigh bed surface, a screw of the leg bending motor is hinged to one end of a leg bending bed surface connecting piece, and the leg bending bed surface connecting piece is connected with the center bed surface of the leg bending bed surface;

the rotary nursing bed comprises a bed body, a leg bending bed surface, a locking support, a locking piece, a frame, a cross beam, a sliding track, a locking support, a locking piece, a locking hole, a locking support, a sliding track, a locking support, a locking piece, a locking support and a vertical column, wherein the sliding track is arranged on each of two sides of the bottom of the central bed surface of the leg bending bed surface, the middle of the locking support is hinged to each of two sides of the lower portion of the front end of the central bed surface of the end bed surface, the sliding track can slide along the sliding track, the other end of the locking support is fixedly connected with the weighting rod, the locking piece is arranged in the center of the weighting rod.

Or the locking piece is replaced by an electromagnet, when the leg bending bed surface rises, the electromagnet is electrified and adsorbed on the locking support, and when the leg bending bed surface falls, the electromagnet is powered off;

or, the locking piece is replaced by a bolt, a control motor is arranged below the end bed surface and used for controlling the bolt to stretch, and when the leg bending bed surface rises, the bolt extends out and is inserted into the locking hole; when the leg bending bed surface falls down, the bolt retracts.

The rotary nursing bed comprises an inner bed frame, a rotary frame connecting piece and a rotary frame, wherein a rotary motor is hinged to one corner of the front end of the inner bed frame, a screw of the rotary motor is hinged to the rotary motor connecting piece, the rotary motor connecting piece is connected with the rotary frame connecting piece and the rotary frame connecting piece, the upper end of the rotary frame connecting piece is fixedly connected with the bottom of the rear end of a central bed surface of a fixed bed surface, the upper end of the rotary frame connecting piece is fixedly connected with the bottom of the front end of the central bed surface of the fixed bed surface, and the; the center of the rotating frame is provided with a rotating shaft, and the bottom surface of the rotating frame is provided with a turntable; the bottom of the inner bed frame is fixed with a plurality of U-shaped frames, and the rotating shaft penetrates through the middle of one of the U-shaped frames.

The rotary nursing bed is characterized in that an upper body bed surface overturning motor is hinged to the rear part of the rotary frame, a screw of the upper body bed surface overturning motor is hinged to the middle parts of two parallel first hinged pieces, the lower ends of the two first hinged pieces are hinged to the rotary frame, the upper ends of the two first hinged pieces are hinged to one ends of two second hinged pieces respectively, and the other ends of the two second hinged pieces are hinged to one ends of two third hinged pieces respectively; the upper surfaces of the two third hinge pieces are connected with the upper body bed surface beam and the tail end of the central bed surface of the upper body bed surface.

The rotary nursing bed is characterized in that the front part of the rotary frame is hinged with a thigh bed surface overturning motor, a screw of the thigh bed surface overturning motor is hinged with one end of a thigh bed surface connecting sheet, and the other end of the thigh bed surface connecting sheet is fixedly connected with the lower part of the front end of the central bed surface of the thigh bed surface.

The rotary nursing bed comprises an upper body bed surface, a fixed bed surface, a thigh bed surface and a leg bending bed surface which are sequentially hinged together.

The rotary nursing bed comprises a bed frame, bed legs, a main universal wheel, a U-shaped bed leg, a tail end universal wheel and a tail end universal wheel, wherein the bed legs are arranged on two sides of the front end and two sides of the middle part of the bed frame; the front end of the bedstead is provided with a headboard; bed surface net racks are arranged in all the central bed surface and the side-turning bed surface.

The working method of the rotary nursing bed comprises the following steps: when the patient turns over to one side, the bed surface is laid flat, the pulley at the front end of the locking support is connected with the slide way on the bottom surface of the leg bending bed surface, the locking card is separated from the locking hole of the locking support, the screw of the side turning motor contracts or extends to drive the inner bed frame on one side of the patient to rotate downwards, and further drive all the central bed surfaces to rotate around the hinge shaft at the support, so that the side turning bed surface on the other side is driven to rotate upwards, the side turning bed surface on one side of the patient rotates upwards by taking the supporting wheel as a fulcrum, and the guardrails on the same side are restrained by the.

When the bed surface is turned over, a screw of the thigh bed surface turning motor extends to drive the thigh bed surface to be turned upwards, the screw of the leg bending motor contracts, the pulley is separated from the slide way, the tail end of the locking support sags under the action of gravity, the locking piece is inserted into the locking hole of the locking support and is restrained by the locking piece, and the tail end bed surface is clamped and cannot be turned over; meanwhile, a screw of the upper body bed surface turning motor extends to sequentially drive the first hinge piece, the second hinge piece and the third hinge piece to be unfolded from a folded state, so that the upper body bed surface is pushed to be turned upwards;

when the bed surface needs to continue rotating, the rotating motor contracts and pulls the connecting piece of the rotating motor, so as to drive the rotating frame and the turntable to rotate around the rotating shaft, thereby driving the upper body bed surface, the fixed bed surface, the thigh bed surface and the leg bending bed surface to integrally rotate;

when the user needs to go out of the bed continuously, the screw rod of the thigh bed surface overturning motor contracts to further drive the thigh bed surface to fall down, the screw rod of the leg bending motor extends, and the thigh bed surface and the leg bending bed surface are laid flat.

Compared with the prior art, the invention has the outstanding effects that:

(1) the guardrails are installed on the left side and the right side of the bed surface in a mode of hinging and adding the parallel connecting rods, the guardrails move along with the turnover of the bed surface when the patient turns over and are restrained by the parallel connecting rods, and the guardrails on the turnover side can keep moving in a vertical up-and-down mode no matter the patient turns over at any angle.

(2) When the bed surface rotates, the leg bed surface is lifted upwards, the pulley is separated from the leg bending bed surface, the tail end of the locking bracket is drooped by the gravity of the weighting rod, the locking piece is inserted into the locking hole and is restrained by the locking piece, and the tail end bed surface is clamped and cannot be turned left and right; when the bed surface is flat, the pulley at the front end of the locking bracket is jointed with the slide way on the bottom surface of the leg bending bed surface, the locking card can be separated from the locking hole after the joint, at the moment, the turning-over function is operated, and the bed surface at the tail end can turn over along with the leg bending bed surface.

(3) Before rotation, the back and the legs are lifted, obstacles between relevant parts and bed legs when the bed surface rotates are avoided, the rotating motor is contracted, and the rotating frame is pulled to rotate around the rotating shaft. After the rotation, the thigh bed surface is descended, and the user can be assisted to get out of the bed.

(4) The turning bed can realize left and right turning, and has the functions of rotating the bed surface and assisting getting out of the bed.

The rotary nursing bed and the working method of the invention are further explained in the following with the description of the figures and the specific embodiments.

Drawings

FIG. 1 is a perspective view of a rotating care bed;

FIG. 2 is a top view of the rotating care bed;

FIG. 3 is a right side view of the rotating nursing bed;

FIG. 4 is a schematic diagram of the rotating nursing bed after being turned to the left (the universal wheels and other components are not shown in the figure);

FIG. 5 is a schematic view of the rotary nursing bed with the upper body bed, thigh bed and leg bending bed turned over (the universal wheels are not shown);

FIG. 6 is a schematic view of the connection relationship at the leg bending motor;

FIG. 7 is a schematic view of the connection of the locking pieces;

fig. 8 is a schematic view of components below the upper body bed surface (components such as a net rack and a guardrail in the bed surface are not shown in the figure);

FIG. 9 is another view of the components under the upper body deck;

FIG. 10 is a schematic view of the connection at the turntable;

FIG. 11 is a schematic view of the connection relationship between the upper body bed surface turning motors;

FIG. 12 is another schematic view of the connection relationship between the upper body bed surface turning motors;

FIG. 13 is a schematic view of the connection relationship between the thigh bed surface turning motors;

FIG. 14 is another schematic view of the connection relationship between the thigh bed surface turning motors;

fig. 15 is a schematic view of the upper body bed surface, the thigh bed surface, and the leg bending bed surface rotated by 90 ° after being turned up (the universal wheels and the like are not shown in the figure).

Wherein, 1-bed surface, 2-bed frame, 3-bed leg, 4-U-shaped bed leg, 5-main universal wheel, 6-tail end universal wheel, 7-headboard, 8-upper body guardrail, 9-lower body guardrail and 100-tail end upright post;

11-upper body bed surface, 12-fixed bed surface, 13-thigh bed surface, 14-leg bending bed surface and 15-tail end bed surface;

101-a central bed surface, 102-a side-turning bed surface, 103-supporting wheels, 104-parallel connecting rods and 105-an inner bed frame connecting frame;

110-upper body bed surface beam, 111-rotating motor, 112-side turning motor, 113-rotating disc, 114-rotating frame first connecting frame, 115-rotating shaft, 116-rotating motor connecting sheet, 117-rotating frame, 118-upper body bed surface turning motor, 119-first hinging sheet, 120-second hinging sheet, 121-rotating frame second connecting frame and 122-third hinging sheet;

131-a thigh bed surface overturning motor and 132-a thigh bed surface connecting sheet;

141-a slide way, 142-a leg bending motor and 143-a leg bending bed surface connecting sheet;

151-pulley, 152-locking bracket, 153-locking piece, 154-weighting rod,

201-beam, 202-support, 203-inner bed frame, 204-U-shaped frame, 205-locking support and 206-fixing frame.

Detailed Description

As shown in fig. 1-3, a rotary nursing bed comprises a bed surface 1 and a bed frame 2, wherein the bed surface 1 is composed of an upper body bed surface 11, a fixed bed surface 12, a thigh bed surface 13, a leg bending bed surface 14 and a tail end bed surface 15 which are connected in sequence, and the upper body bed surface 11, the fixed bed surface 12, the thigh bed surface 13, the leg bending bed surface 14 and the tail end bed surface 15 are all formed by hinging a central bed surface 101 and side-turning bed surfaces 102 at two sides;

supporting wheels 103 are arranged below the side-turning bed surface 102 of the upper body bed surface 11, the thigh bed surface 13 and the tail end bed surface 15; when the side turn bed surface 102 is horizontal, the supporting wheels 103 below the side turn bed surface fall on the bedstead 2;

the left side and the right side of the upper body bed surface 11 are both provided with an upper body guardrail 8 through two hinge shafts in a hinged manner, the hinge shafts at the rear parts of the upper body guardrails 8 at the left side and the right side are also hinged with a first connecting piece, the other end of the connecting piece is hinged with one end of a parallel connecting rod 104, the other end of the parallel connecting rod 104 is hinged with a second connecting piece, and the second connecting piece is hinged with a central bed surface 101 of the upper body bed surface 11;

the left side and the right side of the thigh bed surface 13 are both provided with lower body guardrails 9 through two hinged shafts in a hinged manner, the front hinged shafts of the lower body guardrails 9 on the left side and the right side are also hinged with a third connecting piece, the other end of the connecting piece is hinged with one end of a parallel connecting rod 104, the other end of the parallel connecting rod 104 is hinged with a fourth connecting piece, and the fourth connecting piece is hinged with the central bed surface 101 of the thigh bed surface 13;

the front end, the middle part and the tail end of the bedstead 2 are all fixedly connected with a cross beam 201, the middle part of the cross beam 201 is all fixed with a support 202, and the support 202 is all hinged with the center of the central bed surface 101 at the corresponding position. The bottom of the rear center of the end bed surface 15 is hinged with the support 202 through the end upright 100. When the bed surface is turned left and right, the central bed surface can rotate along the hinge shafts at the hinged parts.

As shown in fig. 4 and 9, the bottom surfaces of the central deck 101 of the upper body deck 11 and the central deck 101 of the thigh deck 13 are fixedly connected to an inner frame 203 via an inner frame connecting frame 105, a side-turning motor 112 is mounted under one corner of the front end of the inner frame 203 in an articulated manner, a fixed frame 206 is fixedly connected to the center of a cross beam 201 of the front end of the frame 2, and a screw of the side-turning motor 112 is connected to the fixed frame 206 in an articulated manner.

A leg bending motor 142 is hinged below the front center of the thigh bed surface 13, a screw of the leg bending motor 142 is hinged with one end of a leg bending bed surface connecting piece 143, and the leg bending bed surface connecting piece 143 is connected with the central bed surface 101 of the leg bending bed surface 14;

as shown in fig. 5-7, two sides of the bottom of the central bed surface 101 of the leg bending bed surface 14 are respectively provided with a slide 141, two sides of the lower part of the front end of the central bed surface 101 of the end bed surface 15 are respectively hinged with the middle part of a locking bracket 152, one end of the locking bracket 152 is provided with a pulley 151, the pulley 151 can slide along the slide 141, two side surfaces of the slide 141 are provided with backward bayonets, and when the pulley 151 slides inwards along the slide 141, the rolling shaft of the pulley 151 can be inserted into the bayonets. The other end of the locking bracket 152 is fixedly connected with a weighting rod 154, a locking sheet 153 is arranged in the center of the weighting rod 154, the front end of the locking sheet 153 is rightly opposite to a locking hole of the locking support 205, the lower part of the locking support 205 is fixedly connected with a cross beam on the bedstead 2, and the upper part of the locking support 205 is hinged with an upright post at the bottom of the front end of the central bed surface 101 of the tail bed surface 15. When the slide links to each other with the pulley, the locking piece breaks away from the locking hole, and when the slide breaks away from each other with the pulley, the locking piece receives the action of gravity of weighting pole, inserts in the locking hole, and at this moment, terminal bed surface can't control the upset.

In other beneficial embodiments, the locking piece 153 can be replaced by an electromagnet, when the leg bending bed surface rises, the electromagnet is electrified and adsorbed on the locking support 205, so as to ensure that the tail end bed surface cannot turn left and right; when the leg bending bed surface falls down, the electromagnet is powered off, and the tail end bed surface and the leg bending bed surface are connected together through the pulleys and the slide way.

Or, the locking piece 153 is replaced by a bolt, a control motor is arranged below the end bed surface, the bolt is controlled to stretch through a turntable or a gear, when the leg bending bed surface rises, the bolt extends out and is inserted into the locking hole, and the end bed surface cannot turn left and right; when the leg bending bed surface falls down, the bolt retracts, and the tail end bed surface and the leg bending bed surface are connected together through the pulley and the slideway.

As shown in fig. 8-10, a rotating motor 111 is hinged to one corner of the front end of the inner bed 203, a screw of the rotating motor 111 is hinged to a rotating motor connecting piece 116, the rotating motor connecting piece 116 is connected to a rotating frame first connecting frame 114 and a rotating frame second connecting frame 121, the upper end of the rotating frame first connecting frame 114 is fixedly connected to the bottom of the rear end of the central bed 101 of the fixed bed 12, the upper end of the rotating frame second connecting frame 121 is fixedly connected to the bottom of the front end of the central bed 101 of the fixed bed 12, and the lower end of the rotating frame first connecting frame 114 and the lower end of the rotating frame second connecting frame 121 are fixedly connected to the rotating frame 117; the center of the rotating frame 117 is provided with a rotating shaft 115, and the bottom surface of the rotating frame 117 is provided with a turntable 113; the bottom of the inner bed frame 203 is fixed with 3U-shaped frames 204, and the rotating shaft 115 passes through the middle part of the middle U-shaped frame 204. The 3U-shaped frames 204 are fixed together.

As shown in fig. 11 to 12, an upper body bed surface turning motor 118 is hinged to the rear portion of the rotating frame 117, a screw of the upper body bed surface turning motor 118 is hinged to the middle portions of two first hinge pieces 119 which are parallel to each other, the lower ends of the two first hinge pieces 119 are hinged to the rotating frame 117, the upper ends of the two first hinge pieces 119 are hinged to one ends of two second hinge pieces 120, and the other ends of the two second hinge pieces 120 are hinged to one ends of two third hinge pieces 122; the upper surfaces of the two third hinge pieces 122 are connected to the upper body deck cross member 110 and the end of the center deck 101 of the upper body deck 11. When the bed surface is flat, the first hinge piece, the second hinge piece and the third hinge piece are folded, and when the bed surface is turned upwards, the first hinge piece, the second hinge piece and the third hinge piece are gradually unfolded.

As shown in fig. 13-14, the front portion of the rotating frame 117 is hinged to a thigh deck turnover motor 131, a screw of the thigh deck turnover motor 131 is hinged to one end of a thigh deck connecting piece 132, and the other end of the thigh deck connecting piece 132 is fixedly connected to the lower portion of the front end of the central deck 101 of the thigh deck 13.

As shown in fig. 2, the upper body bed surface 11, the fixed bed surface 12, the thigh bed surface 13 and the leg bending bed surface 14 are hinged together in sequence.

As shown in fig. 1, the bed legs 3 are installed on both sides of the front end and both sides of the middle portion of the bed frame 2, the left and right ends of the cross member 201 at the front end of the bed frame 2 are fixed to the bed legs 3, and the left and right ends of the cross member 201 at the middle portion of the bed frame 2 (located right below the rear end of the thigh bed surface) are fixed to the bed legs 3.

The bottom of the bed leg 3 is provided with a main universal wheel 5, the lower part of the tail end of the bed frame 2 is provided with a U-shaped bed leg 4, and the bottom of the U-shaped bed leg 4 is provided with a tail end universal wheel 6; the front end of the bedstead 2 is provided with a headboard 7; all the central bed 101 and side-turn beds 102 are provided with bed net racks.

when the bed surface needs to continue rotating, the rotating motor contracts, pulls the connecting piece of the rotating motor, and further drives the rotating frame and the rotating disc to rotate around the rotating shaft, so that the upper body bed surface, the fixed bed surface, the thigh bed surface and the leg bending bed surface are driven to integrally rotate by 90 degrees, as shown in fig. 15;

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims

1. A rotary care bed, characterized in that: the bed comprises a bed surface (1) and a bed frame (2), wherein the bed surface (1) consists of an upper body bed surface (11), a fixed bed surface (12), a thigh bed surface (13), a leg bending bed surface (14) and a tail end bed surface (15) which are sequentially connected, and the upper body bed surface (11), the fixed bed surface (12), the thigh bed surface (13), the leg bending bed surface (14) and the tail end bed surface (15) are formed by hinging a central bed surface (101) and side-turning bed surfaces (102) on two sides;

supporting wheels (103) are arranged below the side-turning bed surfaces (102) of the upper body bed surface (11), the thigh bed surface (13) and the tail end bed surface (15); when the side-turn bed surface (102) is horizontal, the supporting wheels (103) below the side-turn bed surface fall on the bed frame (2);

the left side and the right side of the upper body bed surface (11) are both provided with an upper body guardrail (8) in a hinged mode through hinge shafts, at least one hinge shaft of the upper body guardrail (8) on the left side and the right side is also hinged with a first connecting piece, the other end of each connecting piece is hinged with one end of a parallel connecting rod (104), the other end of each parallel connecting rod (104) is hinged with a second connecting piece, and the second connecting pieces are hinged with a central bed surface (101) of the upper body bed surface (11);

the left side and the right side of the thigh bed surface (13) are both provided with lower body guardrails (9) in a hinged mode, at least one hinged shaft of the lower body guardrails (9) on the left side and the right side is hinged with a third connecting piece, the other end of each connecting piece is hinged with one end of a parallel connecting rod (104), the other end of each parallel connecting rod (104) is hinged with a fourth connecting piece, and the fourth connecting pieces are hinged with a central bed surface (101) of the thigh bed surface (13);

the front end, the middle part and the tail end of the bedstead (2) are fixedly connected with cross beams (201), the middle parts of the cross beams (201) are respectively fixed with a support (202), and the supports (202) are respectively hinged with a central bed surface (101) at the corresponding position.

2. The rotary care bed according to claim 1, wherein: the bottom surfaces of the central bed surface (101) of the upper body bed surface (11) and the central bed surface (101) of the thigh bed surface (13) are fixedly connected with an inner bed frame (203) through an inner bed frame connecting frame (105), a side-turning motor (112) is hinged below one corner of the front end of the inner bed frame (203), a fixing frame (206) is fixedly connected to the center of a cross beam (201) at the front end of the bed frame (2), and a screw rod of the side-turning motor (112) is hinged with the fixing frame (206).

3. The rotary care bed according to claim 2, wherein: a leg bending motor (142) is hinged to the lower portion of the center of the front portion of the thigh bed surface (13), a screw of the leg bending motor (142) is hinged to one end of a leg bending bed surface connecting piece (143), and the leg bending bed surface connecting piece (143) is connected with a center bed surface (101) of the leg bending bed surface (14).

4. A rotary care bed according to claim 3, wherein: the two sides of the bottom of the central bed surface (101) of the leg bending bed surface (14) are respectively provided with a slide rail (141), the two sides of the lower part of the front end of the central bed surface (101) of the tail end bed surface (15) are respectively hinged with the middle part of a locking support (152), one end of the locking support (152) is provided with a pulley (151), the pulley (151) can slide along the slide rail (141), the other end of the locking support (152) is fixedly connected with a weighting rod (154), the center of the weighting rod (154) is provided with a locking sheet (153), the front end of the locking sheet (153) is rightly opposite to a locking hole of a locking support (205), the lower part of the locking support (205) is fixedly connected with a cross beam on the bed frame (2), and the upper part of the locking support (205) is hinged with an upright column at the bottom of the front end of the central bed surface (101) of the tail end bed surface (;

or, the locking piece (153) is replaced by an electromagnet, when the leg bending bed surface rises, the electromagnet is electrified and adsorbed on the locking support (205), and when the leg bending bed surface falls, the electromagnet is powered off;

or, the locking piece (153) is replaced by a bolt, a control motor is arranged below the end bed surface and used for controlling the bolt to stretch, and when the leg bending bed surface rises, the bolt stretches out and is inserted into the locking hole; when the leg bending bed surface falls down, the bolt retracts.

5. The rotary care bed according to claim 4, wherein: a rotating motor (111) is hinged to one corner of the front end of the inner bed frame (203), a screw of the rotating motor (111) is hinged to a rotating motor connecting piece (116), the rotating motor connecting piece (116) is connected with a first rotating frame connecting frame (114) and a second rotating frame connecting frame (121), the upper end of the first rotating frame connecting frame (114) is fixedly connected with the bottom of the rear end of the central bed surface (101) of the fixed bed surface (12), the upper end of the second rotating frame connecting frame (121) is fixedly connected with the bottom of the front end of the central bed surface (101) of the fixed bed surface (12), and the lower end of the first rotating frame connecting frame (114) and the lower end of the second rotating frame connecting frame (121) are fixedly connected with a rotating frame (117); a rotating shaft (115) is arranged in the center of the rotating frame (117), and a rotating disc (113) is arranged on the bottom surface of the rotating frame (117); the bottom of the inner bed frame (203) is fixed with a plurality of U-shaped frames (204), and the rotating shaft (115) penetrates through the middle part of one U-shaped frame (204).

6. The rotary care bed of claim 5, wherein: an upper body bed surface turning motor (118) is hinged to the rear portion of the rotating frame (117), a screw of the upper body bed surface turning motor (118) is hinged to the middle portions of the two first hinged pieces (119) which are parallel to each other, the lower ends of the two first hinged pieces (119) are hinged to the rotating frame (117), the upper ends of the two first hinged pieces (119) are hinged to one ends of the two second hinged pieces (120) respectively, and the other ends of the two second hinged pieces (120) are hinged to one ends of the two third hinged pieces (122) respectively; the upper surfaces of the two third hinge pieces (122) are connected with the upper body bed surface beam (110) and the tail end of the central bed surface (101) of the upper body bed surface (11).

7. The rotary care bed according to claim 6, wherein: the front part of the rotating frame (117) is hinged with a thigh bed surface overturning motor (131), a screw of the thigh bed surface overturning motor (131) is hinged with one end of a thigh bed surface connecting sheet (132), and the other end of the thigh bed surface connecting sheet (132) is fixedly connected with the lower part of the front end of the central bed surface (101) of the thigh bed surface (13).

8. The rotary care bed of claim 7, wherein: the upper body bed surface (11), the fixed bed surface (12), the thigh bed surface (13) and the leg bending bed surface (14) are sequentially hinged together.

9. The method of operating a rotary care bed as claimed in claim 8, wherein: bed legs (3) are arranged on two sides of the front end and two sides of the middle part of the bed frame (2), main universal wheels (5) are arranged at the bottoms of the bed legs (3), U-shaped bed legs (4) are arranged below the tail ends of the bed frame (2), and tail-end universal wheels (6) are arranged at the bottoms of the U-shaped bed legs (4); a headboard (7) is arranged at the front end of the bedstead (2); bed surface net racks are arranged in all the central bed surface (101) and the side-turn bed surface (102).

10. A method of operating a rotary care bed as claimed in any one of claims 1 to 9, characterized by: when the patient turns over to one side, the bed surface is laid flat, the pulley at the front end of the locking bracket is connected with the slide way on the bottom surface of the leg bending bed surface, the locking card is separated from the locking hole of the locking support, the screw of the side turning motor contracts or extends to drive the inner bed frame on one side of the patient to rotate downwards, and further drive all the central bed surfaces to rotate around the hinge shaft at the support, so that the side turning bed surface on the other side is driven to rotate upwards, the side turning bed surface on one side of the patient rotates upwards by taking the supporting wheel as a fulcrum, and the guardrails on the same side are restrained by the;