CN102038588A - Multifunction nursing bed with integrated bed and chair - Google Patents

Abstract

The invention discloses a multifunctional nursing bed with integrated bed and chair, which belongs to the field of health care and includes a bed and chair conversion mechanism and a bed body; a bed and chair conversion mechanism is placed inside the bed; the bed and chair conversion mechanism consists of a front frame, a middle Composed of frame, rear frame, turning mechanism, bent leg mechanism, and hand-held mechanism, the bent-leg mechanism and hand-held mechanism are driven by the rotary driver to lift or lower, and the bed-chair conversion and turn-over mechanism of the bed-chair conversion mechanism are realized by electric push rods turning action. The invention realizes the work of turning over and bed-chair conversion on one bed-chair conversion mechanism; it is easy to operate, and the operation of the electric push rod and the rotary driver can be controlled by the controller, which reduces the burden on the nursing staff and is designed with multiple protection measures to ensure safe use.

Description

Multifunctional nursing bed integrated with bed and chair

technical field

The invention relates to the field of health care equipment, in particular to a multifunctional nursing bed which has both the function of turning over and the function of converting a bed and chair.

Background technique

Existing nursing beds are mostly provided with movable bed boards on the bed body to help patients sit up or change their lying positions, but their functions are relatively simple. Some products combine the functions of nursing beds and wheelchairs to improve the mobility of users, but most of them are less intelligent and their use is also subject to certain restrictions. There are also products that realize a simple auxiliary turning function to reduce the occurrence of bedsores, improve the breathing conditions of users during sleep, and reduce the work intensity of nursing staff. However, due to structural limitations, the range of motion of the turning bed board is very small, and the turning axis Located in the center of the bed surface, the turning function is not perfect, and the patient's sleeping position cannot be really changed. And there is no product combining the above two functions at present. Therefore, the elderly and disabled people who have been bedridden for a long time need a multi-degree-of-freedom, modular robot that can realize the function of a conventional nursing bed, combined with the bed and chair conversion function and the turning function, and has a high level of automation and intelligence. Nursing bed system.

Contents of the invention

The invention provides a multifunctional nursing bed with integrated bed and chair, which can realize the conversion, separation and combination between the bed and chair, and has relatively perfect auxiliary turning function.

The multifunctional nursing bed of the present invention includes a bed and chair conversion mechanism and a bed body; the bed body is a rectangular cylindrical structure with a closed bottom surface; a bed and chair conversion mechanism is placed inside the bed body; the left or right side of the bed body Designed as a movable door structure that can be opened or closed.

The bed and chair conversion mechanism includes a front frame, a middle frame, a rear frame, a turning mechanism, a hand-holding mechanism, a curved leg mechanism and an all-round mobile base; among them, the middle frame adopts an upper and lower two-layer "H" frame structure, and the upper layer "H" The width of the "type frame is smaller than the width of the lower "H" frame; The upper connecting rod is fixedly connected with the lower "H" frame through the bracket; the length of the upper connecting rod is equal to the length of the lower connecting rod; the left and right sides of the upper "H" frame are respectively fixed with hand-held mechanisms, and the upper A curved leg mechanism is installed in front of the transverse edge of the "H" frame.

The walking mechanism is a rectangular frame structure with an opening on one side, and one side of the opening of the walking mechanism is hinged to the left side or the right side of the upper "H" frame; A reinforcing bar A, one end of the reinforcing bar A is fixedly connected with the left side or the right side of the hand-held mechanism, and the other end is hingedly connected with the left side or the right side of the upper "H" frame.

The bent leg mechanism is also a rectangular frame structure with an opening on one side, and the opening side of the bent leg mechanism is hinged to the horizontal side in the upper "H" frame; at least one reinforcing rod is arranged between the left and right sides of the bent leg mechanism B, one end of the reinforcing rod B is fixedly connected with the front side of the bent leg mechanism, and the other end is connected with the horizontal edge hinge in the upper "H" frame.

A rotary driver A, a rotary driver B and a rotary driver C are arranged between the upper "H" frame and the lower "H" frame in the middle frame; among them, the rotary driver A, the rotary driver B and the rotary driver C pass through the belt seat respectively. The bearings are fixed on the left side, right side and transverse side of the upper "H" frame; the output shafts of the rotary drive A, rotary drive B and rotary drive C are respectively connected to the fixed rods in the left hand-held mechanism through the connecting parts A. The fixed rod A in the hand-held mechanism on the right side is connected with the fixed rod B in the curved leg mechanism; the bottom surface of the middle frame is connected with the omnidirectional mobile base through fixed bolts. Both the front frame and the rear frame are rectangular frames, wherein the side at the rear of the front frame is hingedly connected to the upper connecting rod in front of the upper "H" frame in the middle frame, and the upper "H" frame rear upper The connecting rod is hingedly connected to the front side of the rear frame; two turning mechanism installation rods are arranged between the front and rear sides of the rear frame, and the turning mechanism installation rods are perpendicular to the front and rear sides of the rear frame; the two turning mechanisms are installed The bar is symmetrical with respect to the central axis of the rear frame; a stand-up mechanism support plate is also arranged between the two turn-over mechanism mounting bars, and the two ends of the turn-over mechanism support plate are fixedly connected with the front and rear sides of the rear frame.

The turning mechanism includes a left side turning board, a right side turning board, an electric push rod A and an electric push rod B; wherein, the left side turning board and the right side turning board are composed of n parallel crossbeams on the same side of one end and a A structure formed by connecting longitudinal beams, where n≥2; the crossbeams in the left turning board and the crossbeams in the right turning board are arranged alternately; the free ends of the middle beams in the left turning board and the middle beams in the right turning board are respectively The hinge is connected to the turning mechanism installation rod on the right side and the turning mechanism installation lever on the left side; a band magnet is installed on a crossbeam in the left side turning board and the right side turning board.

The body ends of the electric push rods A and B are fixed on the bottom surface of the bed, located at the rear of the bed; the electric push rods A and B are arranged alternately in an "X" shape. The telescopic ends of the electric push rod A and the electric push rod B are connected with steel rollers, and are respectively in contact with the strip magnets on the crossbeams in the left turn board and the right turn board, through magnetic attraction; the front At least two leg support rods are arranged between the left and right sides of the frame, and the two ends of the leg support rods are fixedly connected with the left and right sides of the front frame.

On the lower connecting rod connected to the rear end of the lower "H" frame in the middle frame, the hinge is connected to the body end of the electric push rod C, and the telescopic end of the electric push rod C is hinged to the support plate of the turning mechanism in the rear frame; The body end of the electric push rod D is hinged to the upper side of the lower "H" frame in the middle frame, and the telescopic end of the electric push rod D is hinged to the rear side in the front frame.

Mattresses are respectively fixedly installed on the corresponding front frame, middle frame, hand holding mechanism, bent leg mechanism and turning mechanism in the bed chair conversion mechanism.

The advantages of the present invention are:

(1) The bed-chair conversion mechanism in the present invention can realize the work of turning over and bed-chair conversion, and the turning boards on the left and right sides are arranged alternately, and the rotation axes of the turning boards on the left and right sides are respectively located in the center of the bed surface. Both sides of the shoulders of the patient reduce the distance of body movement before turning over and the risk of being pinched; the maximum rotation angle of the turning board can exceed 90 degrees, which improves the comfort of turning over and enhances the effect of changing the lying position. Compared with ordinary Turning bed, greatly improved in ease of use, comfort and safety;

(2) The present invention adopts a separate bed and chair combination design, the movable bed and chair part can be automatically separated and combined with the bed body, which greatly enhances the user's mobility, and at the same time takes into account the relatively high requirements of the separable bed and chair part. Narrow to ensure flexibility and a wide bed to ensure safety and comfort are two contradictory requirements, so that long-term bedridden users can also walk around freely, which is conducive to the physical and mental rehabilitation of users; the push rod driving the turning board is fixed On the bed frame, it is separated from the movable bed and chair part after reset;

(3) When the present invention converts the bed and chair and separates the bed and chair, all actions are automated and intelligent, and the operation can be completed with one key, and the user can operate independently, which enhances the user's self-confidence and reduces the burden of nursing staff. At the same time, it is designed with a variety of protection measures to ensure the safety of use;

(4) The present invention adopts an omnidirectional mobile base, which reduces the requirements for the mobile base and reduces the volume of the mobile base, and the omnidirectional mobile base can make the bed and chair conversion mechanism turn more flexibly and use more conveniently.

Description of drawings

Fig. 1 is the overall structural representation of multifunctional nursing bed of the present invention;

Fig. 2 is a schematic diagram of the overall structure of the bed and chair conversion mechanism in the present invention;

Fig. 3 is a schematic diagram of the middle frame structure;

Fig. 4 is a schematic diagram of the connection between the rotary drive C and the bent leg mechanism;

Fig. 5 is a schematic diagram of the connection between the rotary driver A and the rotary driver B and the hand-held mechanism;

Fig. 6 is a schematic diagram of the installation mechanism of the left and right turn boards on the rear frame;

Fig. 7 is a schematic diagram of disconnecting the connection between the electric push rod A, the electric push rod B and the turning mechanism;

Fig. 8 is a schematic structural diagram of a turning board according to an embodiment of the present invention;

Fig. 9 is a schematic diagram of the working state of the turning board mechanism of the embodiment of the present invention;

Fig. 10 is a left sectional view of the conversion mechanism of the bed and chair according to the embodiment of the present invention.

In the picture:

1-bed and chair conversion mechanism 2-bed body 3-guardrail 4-omnidirectional mobile base

5- Rotary Driver A 6- Rotary Driver B 7- Rotary Driver C 8- "L" Shaped Corner

9-Connecting clamp bar 10-Connecting rod 11-Electric push rod A 12-Electric push rod B

13-Electric push rod C 14-Electric push rod D 101-Front frame 102-Middle frame

103-Rear frame 104-Turn over mechanism 105-Hand holding mechanism 106-Curved leg mechanism

201-Active door 1011-Upper connecting rod 1012-Lower connecting rod 1013-Bracket

1014-Reinforcing rod A 1015-Reinforcing rod B 1016-Leg support rod 1021-Standing mechanism installation

rod

1022-Turn over mechanism support plate 1023-Left turn over board 1024-Right side turn over board 1025-Beam

1026-longitudinal 1027-ribbon magnet 1028-steel roller

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

The present invention provides a multifunctional nursing bed with integrated bed and chair. As shown in FIG. 1 , it is composed of a bed and chair conversion mechanism 1 and a bed body 2 . The bed body 2 is a rectangular cylindrical structure with a closed bottom. The inside of the bed body 2 is used to place the bed chair conversion mechanism 1 . The left or right side of the bed body 2 is designed as a movable door 201 structure that can be opened or closed, and the bed chair conversion mechanism 1 inside the bed body 2 can be freely moved out or moved in from the bed body 2 through the movable door 201 . Guardrails 3 can be installed around the bed body 2 as required.

Let one end of the legs and feet of the bed body be the front end of the bed, and one end of the head be the rear end of the bed body. Thus, the bed chair conversion mechanism 1 includes a front frame 101, a middle frame 102, a rear frame 103, a turning mechanism 104, and a hand-held mechanism. 105, the bending leg mechanism 106 and the omnidirectional mobile base 4, as shown in FIG. 2 . Among them, the middle frame 102 is used to install the hand-held mechanism 105 and the curved leg mechanism 106. As shown in Figure 3, the middle frame 102 is used as the main support frame of the human body, and adopts an upper and lower two-layer horizontal "H" frame structure, and the upper layer "H" "The width of the frame is less than the width of the lower "H" frame. The front and rear ends of the upper "H" frame are connected by upper connecting rods 1011, the rear ends of the lower "H" frame are connected by lower connecting rods 1012, and the two upper connecting rods 1011 are connected to the lower "H" type frame through brackets 1013. The structure is fixed. The length of the upper connecting rod 1011 is equal to the length of the lower connecting rod 1012 . On the left and right sides of upper strata " H " type frame, hand holding mechanism 105 is fixedly installed respectively, and the place ahead of upper strata " H " type frame transverse limit is equipped with curved leg mechanism 106 .

The hand-held mechanism 105 is a rectangular frame structure with an opening on one side, and one side of the hand-held mechanism 105 is hinged to the left or right side of the upper "H"-shaped frame. In order to strengthen the structure of the hand-held mechanism 105, at least one reinforcement rod A1014 is arranged between the two sides of the hand-held mechanism 105 in the front and rear direction. Type frame hinge connection.

The bent leg mechanism 106 is also a rectangular frame structure with one side opening, and one side of the bent leg mechanism 106 opening is hingedly connected with the horizontal side in the upper "H" shaped frame. In order to strengthen the structure of the bent leg mechanism 106, at least one reinforcing bar B1015 is provided on the bent leg mechanism 106. One end of the reinforcing bar B1015 is fixedly connected to the front side of the bent leg mechanism 106, and the other end is connected to the upper "H" frame Horizontal side hinge connection in.

A rotary driver A5 , a rotary driver B6 , and a rotary driver C7 are arranged between the upper "H" frame and the lower "H" frame in the middle frame 102 . Wherein, the rotary driver A5, the rotary driver B6 and the rotary driver C7 are respectively fixed on the left side, the right side and the lateral side of the upper "H"-shaped frame through bearings with seats. The rotary driver A5, the rotary driver B6, and the rotary driver C7 are respectively connected with the fixed rod A1014 in the hand-held mechanism 105 on the left side and the hand-held mechanism 105 on the right side through the "L" shaped corner piece 8, the connecting clamp rod 9 and the connecting rod 10. The middle fixed rod A1014 is connected with the fixed rod B1015 in the bent leg mechanism 106. The specific connection method is: as shown in Figure 4 and Figure 5, the output shafts of the rotary driver A5, the rotary driver B6, and the rotary driver C7 are respectively movably socketed with "L"-shaped corner pieces 8, and are also fixedly socketed with Connect clamping rod 9, the free end of each connecting clamping rod 9 is movably connected with connecting rod 10 respectively, and the connecting rod 10 free end that links to each other with rotary driver A5, rotary driver B6 is respectively connected with the left or right hand-held mechanism 105. The reinforcement rod A1014 is hinged, as shown in Figure 4. The free end of the connecting rod 10 connected to the rotary driver C7 is hinged with the reinforcement bar B1015 in the bent leg mechanism, as shown in Figure 5 . When the output shafts of the rotary driver A5, the rotary driver B6, and the rotary driver C7 rotate counterclockwise or clockwise, respectively drive the connecting clamp lever 9 connected to the rotary driver A5, the rotary driver B6, and the rotary driver C7 to rotate counterclockwise or clockwise, Thereby, the connecting rods 10 connected to each connecting clamp rod 9 rotate counterclockwise or clockwise, and finally each connecting rod 10 drives the left hand-held mechanism 105, the right hand-held mechanism 105 and the bent leg mechanism 106 respectively. Lift or lower.

When the rotary driver A5, the rotary driver B6 and the rotary driver C7 were in the initial state, each connecting clamp bar 9 was all parallel to the ground, and now the hand-held mechanism 105 and the curved leg mechanism 106 on the left and right sides were just in a flat state. The torque provided by the rotary driver A5, the rotary driver B6 and the rotary driver C7 is 280 N·m.

The bottom surface of the middle frame 102 is fixedly connected with an omnidirectional mobile base 4, which has a relatively large load capacity and can move in all directions.

As shown in Figure 2, the front frame 101 and the rear frame 103 are all rectangular frames, wherein the side at the rear of the front frame 101 is hinged to the upper connecting rod 1011 in front of the upper "H" frame in the middle frame 102 To connect, the upper connecting rod 1011 at the rear of the upper "H" frame is connected with the side hinges at the front of the rear frame 103. Wherein, the side at the rear of the front frame 101 is the same as the upper connecting rod 1011 at the front of the upper "H" frame in the middle frame 102, and the side at the front of the rear frame 103 has the same length.

Between the front and rear sides of the rear frame 103 are provided with two stand-up mechanism installation bars 1021 , and the turn-over mechanism installation bars 1021 are perpendicular to the front and rear sides of the rear frame 103 and are used for installing the turn-over mechanism 104 . The two turning mechanism installation rods 1021 are symmetrical with respect to the central axis of the rear frame, and the vertical distance between the two turning mechanism installation rods 1021 and the central axis of the rear frame 103 is just slightly larger than the shoulder width of a general user, thus making the turning mechanism 104 The axis of rotation is on the outside of the shoulders of a typical user. A stand-up mechanism support plate 1022 is also arranged between the two stand-up mechanism mounting rods 1021, and the two ends of the stand-up mechanism support plate 1022 are vertically fixedly connected with the front and rear sides of the rear frame 103.

As shown in FIG. 6 and FIG. 7 , the turning mechanism 104 includes a left turning board 1023 , a right turning board 1024 , an electric push rod A11 and an electric push rod B12 . Wherein, the left turning board 1023 and the right turning board 1024 are structures formed by connecting the same side ends of n parallel beams 1025 with a longitudinal beam 1026, wherein n≥2. The crossbeams 1025 in the left turning board 1023 and the crossbeams 1025 in the right turning board 1024 are arranged alternately, that is, the crossbeams 1025 in the left turning board 1023 are inserted into the gaps between the crossbeams 1025 in the right turning board 1024 . The free ends of the crossbeam 1025 in the left turning board 1023 and the middle crossbeam 1025 in the right turning board 1024 are respectively hinged on the right side and the left side turning mechanism mounting rod 1021. A strip magnet 1027 is installed on each beam 1025 in the left side turning board 1023 and the right side turning board 1024 , as shown in FIG. 8 .

As shown in FIG. 7 , the body ends of the electric push rod A11 and the electric push rod B12 are fixed on the upper bottom surface of the bed body 2 , at the rear of the bed body 2 , that is, just below the rear frame 103 . Electric push rods A11 and electric push rods B12 are alternately arranged in an "X" shape. The telescopic ends of the electric push rod A11 and the electric push rod B12 are connected with steel rollers 1028, and are respectively in contact with the strip magnets 1027 on the crossbeam 1025 in the left turning board 1023 and the right turning board 1024, and are magnetically attracted. Therefore, when the telescopic ends of the electric push rod A11 and the electric push rod B12 stretch out, the steel rollers 1028 at the telescopic ends of the electric push rod A11 and the electric push rod B12 can just fit with the left turning board 1023 and the right turning board 1024 The crossbeam 1025 in the center is in contact, and realizes the positioning function with the bed body 2 when the bed chair conversion mechanism 1 is pushed into the bed body 2, so that the telescopic ends of the electric push rod A11 and the electric push rod B12 will not be affected by the bed. The position of the chair conversion mechanism 1 is not accurate, and protrudes from the gap of the crossbeam 1025 in the left side turning board 1023 and the right side turning board 1024, hurting the user, as shown in Figure 9 .

When the telescopic ends of the electric push rod A11 and the electric push rod B12 are stretched out, the left side turning board 1023 and the right side turning board 1024 can be pushed to rotate counterclockwise and clockwise respectively, thus passing through the turning mechanism 104 Push the user's entire back to turn along the lateral axis of the shoulder to complete the turning action. When the telescopic ends of the electric push rod A11 and the electric push rod B12 were shortened, by the magnetic attraction force between the band magnet 1027 on the crossbeam 1027 in the left side turning board 1023 and the right side turning board 1024 and the steel roller 1028, Cooperate with the weight of the user and the gravity of the left side turning board 1023 and the right side turning board 1024, so that the left side turning board 1023 and the right side turning board 1024 are laid flat. After the left side turning board 1023 and the right side turning board 1024 are flattened, they can be supported by the turning mechanism support plate 1022 in the rear frame 103, and now continue to shorten the telescopic ends of the electric push rod A11 and the electric push rod B12, namely The steel roller 1028 at the telescopic end of the electric push rod A11 and the electric push rod B12 can be separated from the strip magnet 1027 on the crossbeam 1025 in the left side turning board 1023 and the right side turning board 1024, and the electric push rod A11, The connection between the electric push rod B12 and the turning mechanism 104 realizes the separation between the bed and chair conversion mechanism 1 and the bed body 2 .

At least two leg support rods 1016 are arranged between the left and right sides of the front frame 101, and the two ends of the leg support rods 1016 are fixedly connected to the left and right sides of the front frame 101 to support the legs of the human body. .

As shown in Figure 10, on the lower connecting rod 1012 connected to the rear end of the lower "H" frame in the middle frame 102, the body end of the electric push rod C13 is hinged, and the telescopic end of the electric push rod C13 is connected to the rear frame 1013. The stand-up mechanism support plate 1022 in is hinged. The body end of the electric push rod D14 is hinged on the lower "H" frame lateral edge of the middle frame 102, and the telescopic end of the electric push rod D14 is hinged with the rear side in the front frame 101. When the telescoping end of the electric push rod D14 was extended, the rear frame 103 was driven to rotate upwards, and now the electric push rod A11, the electric push rod B12 and the turning mechanism 104 were disconnected. Form the backrest thus, since the turning mechanism 104 is installed on the rear frame 103, the backrest is more stable and the back of the human body is better supported. When the electric push rod C13 is shortened to the shortest, the rear frame 103 is just in a flat state, and when the telescopic end of the electric push rod C13 is stretched to the longest, the angle between the rear frame 103 and the horizontal plane is 85°. When the telescopic end of the electric push rod D14 is shortened, it drives the front frame 101 to rotate downwards to form a leg plate for supporting human legs. When the telescopic end of the electric push rod D14 was extended to the longest, the front frame 101 was just in a flat state, and when the electric push rod D14 was shortened to the shortest, the angle between the front frame 101 and the horizontal plane was 85°. Electric push rod C13 and electric push rod D14 can provide a thrust of 6000N.

A mattress made of a certain thickness of soft sponge and cloth is fixed on the surface of the bed-chair conversion mechanism 1 and the bed body 2 to improve the user's comfort. The fabric on the surface of the mattress has an appropriate coefficient of friction to reduce unwanted sliding between the user's body and the mattress during turning over. The mattress is divided into several independent modules, corresponding to the front frame 101, the middle frame 102, the hand-supporting mechanism 105, the bent-leg mechanism 106 and the entire turning mechanism, without affecting the movement of each mechanism and the separation of the bed board. The mattress corresponding to the rear frame 103 is a whole, and is positioned on the surface of the left side turning board 1023 and the right side turning board 1024. Even, do not link to each other with the cross beam 1025 in the left side turning board 1023, the right side turning board 1024, thus the mattress can move with the left side turning board 1023, the right side turning board 1024 without affecting the left side turning board 1023, the right side The cross bars 1023 crossed between the side turning body boards 1024 move. When each mechanism moves, the mattress at the joint between each mechanism maintains a certain integrity in appearance through its own deformation.

A multifunctional nursing bed with bed and chair integration of the present invention includes the following three functions:

A. Bed function;

When in the bed state, the bed-chair conversion mechanism 1 is located inside the bed body 2, the electric push rod C13 on the bottom surface of the bed body 2 and the steel roller 1028 on the telescopic end of the electric push rod D14 and the left side turning board 1023 and the right side turning board The strip magnet 1027 on the crossbeam 1025 in 1024 is attracted and, thus the bed body 2 and the bed chair conversion mechanism 1 are relatively fixed.

The stand-up mechanism 104 on the rear frame 103, the hand-held mechanism 105 in the middle frame 102 and the bent leg mechanism 106 and the front frame 101 are all in a flat state. This state can realize all functions as a bed.

b. Wheelchair function;

The stand-up mechanism 104 on the rear frame 103, the hand-held mechanism 105 in the middle frame 102 and the bent leg mechanism 106 and the front frame 101 are all in a flat state. The rotary driver A5 and the rotary driver B6 operate to lift the hand-held mechanisms 105 on the left and right sides of the bed and chair conversion mechanism 1 to a state perpendicular to the horizontal plane, and the telescopic end of the electric push rod A11 is extended to make the rear frame 103 turn upwards. According to the extended length of the telescopic end of the electric push rod A11, the angle at which the rear frame 103 turns upward is controlled. The telescopic end of the electric push rod B12 is shortened, so that the front frame 101 is turned downwards, and the angle of the front frame 101 reversed downward is controlled according to the shortening of the telescopic end of the electric push rod B12, thereby forming a wheelchair state. When the user needs to lift both legs, the leg bending mechanism 106 can be controlled to turn upwards through the operation of the rotary driver C7. After opening the dodge door 201 on the left or right side of the bed body 2, the bed-chair conversion mechanism 1 in the wheelchair state can be pulled out through the omnidirectional chassis mechanism 4, thereby completing the bed-chair separation action.

When the bed and chair are combined, the bed and chair conversion mechanism 1 in the wheelchair state can be pushed into the bed body 2 by the movable door 201 on the left side or the right side of the bed body 2 through the omnidirectional chassis mechanism 4, and then the rotary driver A5 and Rotary driver B6 operates, and the hand-held mechanism 105 on both sides of the bed-chair conversion mechanism is turned down to the level, and the telescopic end of the electric push rod A11 is shortened, the rear frame 103 is turned down, and the rear frame 103 is turned to the level. The telescoping end of electric push rod B12 stretches, and front frame 101 is upturned to level, and bed-chair conversion mechanism 1 is converted into bed state by wheelchair state. At this moment, electric push rod C13, electric push rod D14 telescopic ends elongate, make the steel roller 1028 at the telescopic end place and the band dress magnet on the crossbeam 1025 of the left side turning over body plate 1023 and the right side turning over body plate 1024 in the turning over mechanism 104 1028 pulls in, closes dodge door 201 this moment, completes bed and chair combination thus.

c. Turn over function

When the user is lying on his back, sometimes it is necessary to turn the user over, which can be realized by the turning mechanism 104 . When turning over, the bed-chair conversion mechanism 1 should be in a horizontal state, and the user lies supine on the vertical central axis of the bed body 2 . The working process of the stand-up mechanism 104 is: when the user needs to turn over to the right side or the left side of the bed body 2, the leg bending mechanism 106 is first turned upward by the rotary driver C7 to bend the user's legs to facilitate turning over. Then control the telescopic end of the electric push rod C13 or the electric push rod D14 to elongate, so that the telescopic end of the electric push rod C13 or the electric push rod D14 pushes the right side turning board 1024 or the left side turning board 1023 to turn upwards, thereby pushing the user The whole back is turned over along its shoulder lateral axis, and the bent leg mechanism 106 is turned down to the level by the rotary driver C7 at the same time, so that the user turns over to the right side or the left side of the bed body 2, so that the user is in a side-lying state. In the process of turning over, the right or left hand-held mechanism 105 can be controlled to turn up at an appropriate angle through the rotary driver B6 or rotary driver A7, so as to avoid unnecessary sliding of the user's body on the mattress during the turning process . When reverting to the bed state, the telescopic end of the electric push rod C13 or electric push rod D14 shortens until the right side turning board 1024 or the left side turning board 1023 reaches the horizontal position, thus making the user in a supine state.

Claims (5)

1. A multifunctional nursing bed with bed and chair integration, characterized in that: it comprises a bed and chair conversion mechanism and a bed body; the bed body is a rectangular tubular structure with a closed bottom surface; a bed chair is placed inside the bed body Conversion mechanism; the left or right side of the bed is designed as a movable door structure that can be opened or closed; The bed and chair conversion mechanism includes a front frame, a middle frame, a rear frame, a turning mechanism, a hand-holding mechanism, a curved leg mechanism and an all-round mobile base; among them, the middle frame adopts an upper and lower two-layer "H" frame structure, and the upper layer "H" The width of the "type frame is smaller than the width of the lower "H" frame; The upper connecting rod is fixedly connected with the lower "H" frame through the bracket; the length of the upper connecting rod is equal to the length of the lower connecting rod; the left and right sides of the upper "H" frame are respectively fixed with hand-held mechanisms, and the upper A curved leg mechanism is installed in front of the transverse side of the "H" frame; The walking mechanism is a rectangular frame structure with an opening on one side, and one side of the opening of the walking mechanism is hinged to the left side or the right side of the upper "H" frame; A reinforcement rod A, one end of the reinforcement rod A is fixedly connected to the left or right side of the hand-held mechanism, and the other end is hinged to the left or right side of the upper "H" frame; The bent leg mechanism is also a rectangular frame structure with an opening on one side, and the opening side of the bent leg mechanism is hinged to the horizontal side in the upper "H" frame; at least one reinforcing rod is arranged between the left and right sides of the bent leg mechanism B, one end of the reinforcing rod B is fixedly connected to the front side of the bent leg mechanism, and the other end is connected to the horizontal hinge in the upper "H" frame; A rotary driver A, a rotary driver B and a rotary driver C are arranged between the upper "H" frame and the lower "H" frame in the middle frame; among them, the rotary driver A, the rotary driver B and the rotary driver C pass through the belt seat respectively. The bearings are fixed on the left side, right side and transverse side of the upper "H" frame; the output shafts of the rotary drive A, rotary drive B and rotary drive C are respectively connected to the fixed rods in the left hand-held mechanism through the connecting parts A. The fixed rod A in the hand-held mechanism on the right is connected with the fixed rod B in the curved leg mechanism; the bottom surface of the middle frame is connected with the omnidirectional mobile base through fixed bolts; Both the front frame and the rear frame are rectangular frames, wherein the side at the rear of the front frame is hingedly connected to the upper connecting rod in front of the upper "H" frame in the middle frame, and the upper "H" frame rear upper The connecting rod is hingedly connected to the front side of the rear frame; two turning mechanism installation rods are arranged between the front and rear sides of the rear frame, and the turning mechanism installation rods are perpendicular to the front and rear sides of the rear frame; the two turning mechanisms are installed The rod is symmetrical with respect to the central axis of the rear frame; a turn mechanism support plate is also provided between the two turn mechanism installation rods, and the two ends of the turn mechanism support plate are fixedly connected to the front and rear sides of the rear frame; The turning mechanism includes a left side turning board, a right side turning board, an electric push rod A and an electric push rod B; wherein, the left side turning board and the right side turning board are composed of n parallel crossbeams on the same side of one end and a A structure formed by connecting longitudinal beams, where n≥2; the crossbeams in the left turning board and the crossbeams in the right turning board are arranged alternately; the free ends of the middle beams in the left turning board and the middle beams in the right turning board are respectively The hinge is connected to the turning mechanism installation rod on the right side and the turning mechanism installation rod on the left side; a strip magnet is installed on a crossbeam in the turning board on the left side and the turning board on the right side; The body ends of electric push rod A and electric push rod B are fixed on the bottom surface of the bed, located at the rear of the bed; electric push rod A and electric push rod B are arranged alternately in an "X" shape; electric push rod A and electric push rod The telescopic ends of the push rod B are connected with steel rollers, and are respectively in contact with the strip magnets on the crossbeams of the left and right turning boards, through magnetic attraction; the left and right sides of the front frame At least two leg support rods are arranged between them, and the two ends of the leg support rods are fixedly connected with the left and right sides of the front frame; On the lower connecting rod connected to the rear end of the lower "H" frame in the middle frame, the hinge is connected to the body end of the electric push rod C, and the telescopic end of the electric push rod C is hinged to the support plate of the turning mechanism in the rear frame; The body end of the electric push rod D is hinged to the upper side of the lower "H" frame in the middle frame, and the telescopic end of the electric push rod D is hinged to the rear side of the front frame; Mattresses are respectively fixedly installed on the corresponding front frame, middle frame, hand holding mechanism, bent leg mechanism and turning mechanism in the bed chair conversion mechanism. 2. A multifunctional nursing bed with bed and chair integration as claimed in claim 1, characterized in that: guardrails are installed around the bed body. 3. A multifunctional nursing bed integrated with a bed and chair as claimed in claim 1, characterized in that: the connecting parts include an "L" shaped corner piece, a connecting clamp rod and a connecting rod; a rotary driver A and a rotary driver B The output shaft of the rotary drive C is respectively movably socketed with "L" shaped corner pieces, and the connecting clamping rods are fixedly socketed respectively, and the free ends of each connecting clamping rod are respectively movably connected with connecting rods; 1. The free end of the connecting rod connected to the rotary driver B is hinged with the reinforcing rod A in the left or right hand-held mechanism respectively; the free end of the connecting rod connected with the rotary driver C is hinged with the reinforcing rod B in the bent leg mechanism. 4. A multifunctional nursing bed with bed and chair integration as claimed in claim 1, characterized in that: the side at the rear of the front frame is connected to the upper connecting rod in front of the upper "H" frame in the middle frame , and the same length as the sides in front of the rear frame. 5. A multifunctional nursing bed with bed and chair integration as claimed in claim 1, characterized in that: the rear frame corresponds to an integral mattress, which is located on the surface of the left side turning board and the right side turning board, and the mattresses are respectively It is fixedly connected with both sides of the longitudinal beam of the left turn board and the right turn board.

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