CN110772381A - A bed for helping the elderly and the disabled - Google Patents

Abstract

The invention discloses a bed for helping the elderly and the disabled, comprising a bed frame, a bed board, a head-up and bending-leg linkage mechanism and a left and right turning mechanism; It is used to support the sub-boards on the same horizontal plane, and baffles are respectively provided on the bed frames corresponding to the edges of each sub-board to prevent the horizontal displacement of each sub-board. The support and positioning structure of each sub-board; the front end of the corresponding board of the leg is hinged with the bed frame; the head-up bending leg linkage mechanism includes the upper body front end corresponding to the square board lifting device, the leg corresponding board lifting device, the synchronous transmission structure and the linkage mechanism drive motor; left and right The turning mechanism includes the turning mechanism lead screw, the turning mechanism sliding block, the turning mechanism shaft drive hinge rod, the turning mechanism shaft, the left lifting structure, the right lifting structure and the turning mechanism driving motor; it has the advantages of convenient operation, reliable work, safe use, etc. Features.

Description

A bed for helping the elderly and the disabled

technical field

The invention relates to a bed for helping the elderly and the disabled.

Background technique

The general patient's requirements for a turning bed are not only the two functions of raising the head and bending the legs, but also a turning bed that can simultaneously turn the head and bend the legs. For the patient, it is very comfortable to lift the head and bend the legs at the same time. For the nursing staff, the work of turning the patient over, applying medicine, changing the bedding, etc. is quite heavy every day. There is an urgent need for a rollover bed with complete functions, which is convenient for patients to raise their heads and bend their legs at the same time, and to turn left and right.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a bed for helping the elderly and disabled, which has the characteristics of convenient operation, reliable operation, low production cost, safe use and the like.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the present invention is:

A bed for helping the elderly and the disabled, comprising a bed frame, a bed board, a head-up and bending-leg linkage mechanism and a left-right turning mechanism;

The bed board is a spliced structure, including the upper body corresponding board and the leg corresponding board. The upper body corresponding board is located in front of the leg corresponding board. The upper body corresponding board is composed of six sub-boards. The middle plate, the right side plate at the front end of the upper body, the left side plate at the rear end of the upper body, the middle plate at the rear end of the upper body and the right side plate at the rear end of the upper body; the positional relationship of each sub-plate is: the left side plate at the front end of the upper body, the middle plate at the front end of the upper body and the front end of the upper body The right side plate is spliced from left to right to form a square plate corresponding to the front end of the upper body, the left side plate at the rear end of the upper body, the middle plate at the rear end of the upper body and the right side plate at the rear end of the upper body are sequentially spliced from left to right to form a square plate corresponding to the rear end of the upper body, and the upper body rear end corresponds to a square plate. The front end corresponding plate is located at the front end of the upper body rear end corresponding plate, the upper body front left plate and the upper back rear left plate are spliced to form the upper body left strip plate, the upper body front middle plate and the upper body rear middle plate are spliced to form the upper body middle strip The right side plate at the front end of the upper body and the right side plate at the rear end of the upper body are spliced together to form the right side strip plate of the upper body; the bed frame corresponding to the bottom of each sub-board is provided with a support table, which is used to support each sub-board in the same On the horizontal plane, baffles are respectively provided on the bed frame corresponding to the edge of each sub-board to prevent the horizontal displacement of each sub-board. Each sub-board is limited to its own position; the front end of the corresponding board of the leg is hinged with the bed frame;

The head-up and bending-leg linkage mechanism includes the upper body front end corresponding to the square plate lifting device, the leg corresponding plate lifting device, the synchronous transmission structure and the linkage mechanism drive motor, the upper body front end corresponding to the square plate lifting device and the leg corresponding plate lifting device have the same structure: including the linkage mechanism The lead screw, the sliding block of the linkage mechanism, the hinged rod driven by the hinged mechanism of the linkage mechanism, at least one hinged rod of the bedplate lift of the linkage mechanism, the lifting beam of the linkage mechanism bedplate and the hinged shaft of the linkage mechanism, the hinged rod driven by the hinged mechanism of the linkage mechanism and the hinged rod of the bedplate lift of the linkage mechanism have the same structure. It consists of two connecting rods hinged together at one end; the front end of the upper body corresponding to the square plate lifting device is arranged in front of the bed frame, the leg corresponding plate lifting device is arranged behind the bed frame, and the lead screw of the linkage mechanism is arranged along the length direction of the bed frame, and It is rotatably connected with the bed frame, the sliding block of the linkage mechanism is threadedly connected with the lead screw of the linkage mechanism, the rotating shaft of the linkage mechanism is located between the lead screw of the linkage mechanism and the bed board, is arranged along the width direction of the bed frame, and is rotatably connected with the bed frame, and the rotating shaft of the linkage mechanism is driven and hinged One end of the rod is hinged with the sliding block of the linkage mechanism, and the other end is fixedly connected with the rotating shaft of the linkage mechanism. The linkage mechanism of the board lifting device is set along the width direction of the bed frame, and is rotatably connected with the bottom of the corresponding square board at the front end of the upper body, and the leg corresponds to the linkage mechanism of the board lifting device. The lower part of the corresponding plate is rotated and connected; the linkage mechanism drives the motor to drive the synchronous transmission structure to rotate the two lead screws, so as to move the two linkage mechanism sliders respectively, and the two linkage mechanism sliders respectively drive the hinge rods through their respective linkage mechanism shafts to make the linkage The linear displacement of the mechanism slider is converted into the angular displacement of the linkage mechanism shaft in the respective devices, and the front end of the upper body corresponds to the linkage mechanism rotation shaft in the square plate lifting device. Ascending/descending, the shaft of the linkage mechanism in the corresponding board lifting device of the leg converts the angular displacement of the rotating shaft of the linkage mechanism into the descending/rising of the lifting beam of the linkage mechanism through the lifting hinge rod of the linkage mechanism bedplate, so that the front end of the upper body corresponding to the square plate rises/descends. Down, the legs correspond to the board down/up;

The left and right turning mechanism includes the turning mechanism lead screw, the turning mechanism sliding block, the turning mechanism rotating shaft driving the hinge rod, the turning mechanism rotating shaft, the left lifting structure, the right lifting structure and the turning mechanism driving motor; One end of the rod is hinged together to form, the left lifting structure is the same as the right lifting structure, including the bed lift beam of the turning mechanism and the lifting arm of the turning mechanism, and one end of the lifting arm of the turning mechanism is vertically fixed on the lifting beam of the bed of the turning mechanism , the lead screw of the turning mechanism is arranged along the width direction of the bed frame and is rotatably connected with the bed frame, the sliding block of the turning mechanism is threadedly connected with the lead screw of the turning mechanism, and the rotating shaft of the turning mechanism is located between the screw of the turning mechanism and the bed board, and is arranged along the length direction of the bed frame , and is rotatably connected with the bed frame, one end of the hinge rod driven by the turning shaft of the turning mechanism is hinged with the sliding block of the turning mechanism, and the other end is fixedly connected with the turning shaft of the turning mechanism. The other end is fixed on the rotating shaft of the turning mechanism. The lift arms of the left lifting structure and the right lifting structure are arranged symmetrically on the left and right sides of the rotating shaft of the turning mechanism in a V-shape. The left lifting structure and the right lifting structure are turned over. The mechanism bed plate lifting beams are respectively supported on the left and right sides of the bottom of the middle strip plate of the upper body along the length direction of the bed frame; the turning mechanism drive motor drives the turning mechanism lead screw to rotate, so that the turning mechanism slider moves, and the turning mechanism slider passes the turning The rotating shaft of the mechanism drives the hinge rod to convert the linear displacement of the slider of the turning mechanism into the angular displacement of the rotating shaft of the turning mechanism. The lifting movement of the bed plate lifting beam of the turning mechanism forming the left lifting structure and the right lifting structure is used to raise the left or right side of the middle strip plate of the upper body.

The further improvement of the present invention is:

The synchronous transmission structure of the head-up and bending-leg linkage mechanism is that one end of the lead screw of the linkage mechanism of the front end of the upper body corresponding to the square plate lifting device and the leg corresponding to the plate lifting device is fixedly connected together.

The synchronous transmission structure of the head-up and bending-leg linkage mechanism is that the adjacent ends of the linkage mechanism screw corresponding to the square plate lifting device and the leg corresponding plate lifting device are respectively provided with driven bevel gears at the front end of the upper body, and the linkage mechanism drives the motor shaft to be fixedly installed. The driving bevel gear is meshed and connected with the two moving bevel gears, so that the linkage mechanism driving motor drives the two linkage mechanism lead screws to rotate synchronously.

The supporting and positioning structure of each sub-plate is a frame formed by welding angle irons. The inner corners of each angle iron face the inside of the frame, and the inner edge of one edge ring frame of each angle iron is set on the same horizontal plane to form a support table. A side ring frame is arranged vertically to form a baffle.

The beneficial effects produced by the above technical solutions are:

The bed board of the present invention is a spliced structure, including an upper body corresponding board and a leg corresponding board, the upper body corresponding board is located in front of the leg corresponding board, the upper body corresponding board is composed of six sub-boards, and the corresponding sub-boards are controlled by the head-up and leg-bending linkage mechanism. The function of lifting up and bending legs can be completed by taking off and landing, and the function of turning left and right is completed through the left and right turning mechanism. The support platform and baffle corresponding to each sub-board form the supporting and positioning structure of each sub-board, so that each sub-board is limited to its own position. , the front end of the corresponding board of the leg is hinged with the bed frame to ensure that each sub-board will not fall apart during movement.

The invention has the characteristics of convenient operation, reliable work, low production cost, safe use and the like.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the bottom view of Fig. 1;

Fig. 3 is the structural representation of the lift-up and flexion-leg linkage mechanism in Fig. 1;

Fig. 4 is the structural representation of the left and right turning mechanism in Fig. 1;

FIG. 5 is a schematic structural diagram of the head-up and bending-leg linkage mechanism, the left-right turning mechanism and the bed board in FIG. 1 .

In the drawings: 1. Bed frame; 2. Leg corresponding plate; 3. Left side plate at front end of upper body; 4. Middle plate at front end of upper body; 5. Right side plate at front end of upper body; 6. Left side plate at rear end of upper body; 7 .The middle plate at the rear end of the upper body; 8. The right side plate at the rear end of the upper body; 9. The drive motor of the linkage mechanism; 10. The screw of the linkage mechanism; 11. The slider of the linkage mechanism; Bed lift hinge rod; 14. Linkage mechanism bed lift beam; 15. Linkage mechanism shaft; 16. Turning mechanism lead screw; 17. Turning mechanism slider; 18. Turning mechanism shaft drive hinge rod; 19. Turning mechanism shaft; 20. The driving motor of the turning mechanism; 21. The lifting beam of the bed plate of the turning mechanism; 22. The lifting arm of the bed plate of the turning mechanism.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

The standard parts used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description in the description and the drawings, and the specific connection methods of each part are all mature bolts, rivets, welding in the prior art. , pasting and other conventional means will not be described in detail here.

It can be known from the embodiments shown in Figs. 1-5 that this embodiment includes a bed frame 1, a bed board, a head-up and bending-leg linkage mechanism and a left-right turning mechanism;

The bed board is a spliced structure, including the upper body corresponding board and the leg corresponding board 2, the upper body corresponding board is located in front of the leg corresponding board 2, the upper body corresponding board is composed of six sub-boards, and the six sub-boards are respectively the upper body front left side board 3 , the upper body front middle plate 4, the upper body front right side plate 5, the upper body rear left side plate 6, the upper body rear middle plate 7 and the upper body rear right side plate 8; the positional relationship of each sub-board is: the upper body front left side plate 3. The upper body front middle plate 4 and the upper body front right side plate 5 are spliced from left to right to form the corresponding square plate at the front end of the upper body, the left side plate 6 at the rear end of the upper body, the middle plate 7 at the rear end of the upper body and the right side plate 8 at the rear end of the upper body. Splicing from left to right in turn forms a square plate corresponding to the rear end of the upper body, the front end of the upper body corresponds to the front end of the rear end of the upper body where the plate is located, and the left plate 3 at the front end of the upper body and the left plate 6 at the rear end of the upper body are spliced to form a strip plate on the left side of the upper body. The upper body front middle plate 4 and the upper body rear middle plate 7 are spliced to form the upper body middle strip plate, and the upper body front right side plate 5 and the upper body rear right side plate 8 are spliced to form the upper body right side strip plate; The corresponding bed frame 1 is respectively provided with a support table for supporting each sub-board on the same horizontal plane, and baffles are respectively provided on the bed frame 1 corresponding to the edge of each sub-board to prevent the horizontal displacement of each sub-board. , The support table and baffle corresponding to each sub-board form the support and positioning structure of each sub-board, so that each sub-board is limited to its own position, so as to prevent each sub-board from being under the action of the head-up and bending-leg linkage mechanism and the left and right turning mechanism. Disperse when moving; the front end of the leg corresponding plate 2 is hinged with the bed frame 1;

The head-up bending leg linkage mechanism includes the upper body front end corresponding to the square plate lifting device, the leg corresponding plate lifting device, the synchronous transmission structure and the linkage mechanism drive motor 9, the upper body front end corresponding to the square plate lifting device and the leg corresponding plate lifting device have the same structure: including linkage Mechanism lead screw 10, linkage mechanism slider 11, linkage mechanism rotating shaft driving hinge rod 12, at least one linkage mechanism bed plate lifting hinge rod 13, linkage mechanism bed plate lifting beam 14 and linkage mechanism rotating shaft 15, linkage mechanism rotating shaft driving hinge rod 12 and linkage mechanism Mechanism The bed plate lifting hinge rod 13 has the same structure, which is composed of two connecting rods hinged together at one end; the front end of the upper body corresponding to the square plate lifting device is arranged in front of the bed frame 1, and the leg corresponding plate lifting device is arranged behind the bed frame 1. The mechanism lead screw 10 is arranged along the length direction of the bed frame 1 and is rotatably connected with the bed frame 1. The linkage mechanism slider 11 is threadedly connected with the linkage mechanism lead screw 10, and the linkage mechanism shaft 15 is located between the linkage mechanism lead screw 10 and the bed board, along the The bed frame 1 is arranged in the width direction and is rotatably connected with the bed frame 1. One end of the hinge rod 12 driven by the linkage mechanism is hinged with the linkage mechanism slider 11, and the other end is fixedly connected with the linkage mechanism shaft 15. The linkage mechanism bed plate lift hinge rod 13 One end is fixedly connected with the linkage mechanism rotating shaft 15, and the other end is connected with the linkage mechanism bed plate lifting beam 14. The upper body front end corresponds to the linkage mechanism bed plate lifting beam 14 of the square plate lifting device. The bottom of the board is rotatably connected, and the legs correspond to the linkage mechanism of the board lifting device. The lever rotates to move the two linkage mechanism sliders 11 respectively. The two linkage mechanism sliders 11 respectively drive the hinge rod 12 through their respective linkage mechanism rotating shafts to convert the linear displacement of the linkage mechanism sliders 11 into the linkage mechanism rotating shafts in their respective devices. The angular displacement of 15, the front end of the upper body corresponds to the linkage mechanism rotating shaft 15 in the square plate lifting device, and the angular displacement of the linkage mechanism rotating shaft 15 is converted into the rise/fall of the linkage mechanism bed plate lifting beam 14 through the linkage mechanism bed plate lifting hinge rod 13, and the legs correspond to the plate In the lifting device, the linkage mechanism rotating shaft 15 converts the angular displacement of the linkage mechanism rotating shaft 15 into the lowering/rising of the linkage mechanism bed plate lifting beam 14 through the linkage mechanism bed plate lifting hinge rod 13, so that the front end of the upper body corresponding to the square plate rises/rises in the support positioning structure. Descending, the leg corresponding plate 2 is lowered/raised in the support positioning structure; in order to realize the opposite movement of the linkage mechanism bed plate lifting beam 14 in the upper body front end corresponding to the square plate lifting device and the leg corresponding plate lifting device, attention should be paid to the lead screw in the two 10. The direction of the thread rotation, the direction of the hinge angle of the hinge rod 12 driven by the rotating shaft of the linkage mechanism, is the common knowledge of those skilled in the art, and will not be repeated here.

The left and right turning mechanism includes the turning mechanism lead screw 16, the turning mechanism sliding block 17, the turning mechanism rotating shaft drive hinge rod 18, the turning mechanism rotating shaft 19, the left lifting structure, the right lifting structure and the turning mechanism drive motor 20; The rod 18 is composed of two connecting rods hinged together at one end. The left lifting structure is the same as the right lifting structure, including the bed lifting beam 21 of the turning mechanism and the lifting arm 22 of the turning mechanism. One end of the lifting arm 22 of the turning mechanism It is vertically fixed on the lifting beam 21 of the bed plate of the turning mechanism, the lead screw 16 of the turning mechanism is arranged along the width direction of the bed frame 1, and is rotatably connected with the bed frame 1, the sliding block 17 of the turning mechanism is threadedly connected with the screw 16 of the turning mechanism, and the rotating shaft 19 of the turning mechanism is threaded. It is located between the lead screw 16 of the turning mechanism and the bed board, is arranged along the length direction of the bed frame 1, and is rotatably connected to the bed frame 1. One end of the hinge rod 18 driven by the rotating shaft of the turning mechanism is hinged with the sliding block 17 of the turning mechanism, and the other end is connected to the turning mechanism. The rotating shaft 19 is fixedly connected, the other ends of the bed lift arms 22 of the turning mechanism of the left lifting structure and the right lifting structure are fixed on the turning shaft 19 of the turning mechanism, and the turning mechanism bed lift arms 22 of the left lifting structure and the right lifting structure are Symmetrically arranged in a V shape on the left and right sides of the turning mechanism shaft 19, the turning mechanism bed lifting beams 21 of the left lifting structure and the right lifting structure are respectively supported along the length direction of the bed frame 1 on the left and the bottom of the middle strip plate of the upper body. Right side (the bed lift beam 21 of the turning mechanism cannot be fixed on the bottom of the upper body middle strip plate, otherwise when one of the lift beams 21 supports the upper body middle strip plate side to rise, the other lift beam 21 will lift the upper body middle strip plate. The other side is pulled downward, which will produce a destructive force on the support and positioning structure); the turning mechanism driving motor 20 drives the turning mechanism lead screw 16 to rotate, so that the turning mechanism slider 17 moves, and the turning mechanism sliding block 17 is driven by the turning mechanism rotating shaft The hinge rod 18 converts the linear displacement of the turning mechanism slider 17 into the angular displacement of the turning mechanism rotating shaft 19. The turning mechanism rotating shaft 19 makes the turning mechanism rotating shaft 19 move through the turning mechanism bed lift arms 22 of the left lifting structure and the right lifting structure. The angular displacement is converted into the lifting motion of the bed plate lifting beam 21 of the turning mechanism of the left lifting structure and the right lifting structure, so that the left or right side of the middle strip plate of the upper body supports the baffle on the right or left side of the positioning structure Raised for pivot upward rotation.

The synchronous transmission structure of the head-up and bending-leg linkage mechanism is that one end of the lead screw 10 of the linkage mechanism of the front end of the upper body corresponding to the square plate lifting device and the leg corresponding to the plate lifting device is fixedly connected together.

The synchronous transmission structure of the head-up and bending-leg linkage mechanism is that the adjacent ends of the linkage mechanism screw 10 corresponding to the square plate lifting device and the leg corresponding plate lifting device are respectively provided with driven bevel gears at the front end of the upper body, and the linkage mechanism drives the motor 9 to rotate the shaft. The driving bevel gear is fixedly installed, and the driving bevel gear is meshed and connected with the two driving bevel gears, so that the linkage mechanism driving motor 9 drives the two linkage mechanism lead screws 10 to rotate synchronously (not shown in the figure).

The supporting and positioning structure of each sub-plate is a frame formed by welding angle irons. The inner corners of each angle iron face the inside of the frame, and the inner edge of one edge ring frame of each angle iron is set on the same horizontal plane to form a support table. A side ring frame is arranged vertically to form a baffle (not shown in the figure).

Claims (4)

1. a bed for helping the elderly and the disabled, characterized in that: comprising a bed frame (1), a bed board, a lift-up and bending-leg linkage mechanism and a left and right turning mechanism; The bed board is a splicing structure, including an upper body corresponding board and a leg corresponding board (2), the upper body corresponding board is located in front of the leg corresponding board (2), and the upper body corresponding board is composed of six sub-boards, and the six The sub-boards are respectively the left side plate (3) at the front end of the upper body, the middle plate (4) at the front end of the upper body, the right side plate (5) at the front end of the upper body, the left side plate (6) at the rear end of the upper body, and the middle plate (7) at the rear end of the upper body and the right side plate (8) at the rear end of the upper body; the positional relationship of each of the sub-plates is: the left side plate (3) at the front end of the upper body, the middle plate (4) at the front end of the upper body and the right side plate (5) at the front end of the upper body from the left The upper body front end corresponding square plate is formed by splicing to the right in sequence, the upper body rear left side plate (6), the upper body rear middle plate (7) and the upper body rear right plate (8) are sequentially spliced from left to right to form the upper body rear The end corresponds to a square plate, the front end corresponding plate of the upper body is located at the front end of the corresponding plate at the rear end of the upper body, and the left side plate (3) of the front end of the upper body and the left plate (6) of the rear end of the upper body are spliced to form the left side of the upper body Strip plate, the upper body front middle plate (4) and the upper body rear middle plate (7) are spliced to form an upper body middle strip plate, the upper body front right side plate (5) and the upper body rear right side The plates (8) are spliced together to form a strip plate on the right side of the upper body; a support table is respectively provided on the bed frame (1) corresponding to the bottom of each of the sub-boards to support each of the sub-boards in the same horizontal plane On the bed frame (1) corresponding to the edge of each of the sub-boards, baffles are respectively provided to prevent the horizontal displacement of each of the sub-boards. The baffles form a supporting and positioning structure for each of the sub-boards, so as to limit each of the sub-boards at their respective positions; the front ends of the corresponding boards (2) of the legs are hinged with the bed frame (1); The head-up and bending-leg linkage mechanism includes a lifting device corresponding to a square plate at the front end of the upper body, a lifting device corresponding to a plate for the legs, a synchronous transmission structure and a linkage mechanism drive motor (9), and the front end of the upper body corresponds to the lifting device for the square plate and the leg corresponds to the lifting device. The structure of the board lifting device is the same: it includes a linkage mechanism lead screw (10), a linkage mechanism slider (11), a linkage mechanism rotating shaft drive hinge rod (12), at least one linkage mechanism bed board lifting hinge rod (13), a linkage mechanism bed board lifting beam (14) and a linkage mechanism rotating shaft (15), the linkage mechanism rotating shaft driving hinge rod (12) and the linkage mechanism bed plate lifting hinge rod (13) have the same structure, which is composed of two connecting rods hinged together at one end; The front end of the upper body corresponding to the square plate lifting device is arranged in front of the bed frame (1), the leg corresponding plate lifting device is arranged behind the bed frame (1), and the linkage mechanism lead screw (10) is arranged along the The bed frame (1) is arranged in the length direction, and is rotatably connected with the bed frame (1), the linkage mechanism slider (11) is threadedly connected with the linkage mechanism lead screw (10), and the linkage mechanism rotating shaft ( 15) It is located between the lead screw (10) of the linkage mechanism and the bed board, is arranged along the width direction of the bed frame (1), and is rotatably connected to the bed frame (1), and the linkage shaft is driven to be hinged One end of the rod (12) is hinged with the sliding block (11) of the linkage mechanism, and the other end of the rod (12) is fixedly connected with the rotating shaft (15) of the linkage mechanism. The mechanism shaft (15) is fixedly connected, the other end of which is connected with the linkage mechanism bed plate lifting beam (14), and the front end of the upper body corresponds to the linkage mechanism bed plate lifting beam (14) of the square plate lifting device along the bed frame (14). 1) It is arranged in the width direction, and is rotatably connected to the bottom of the square plate corresponding to the front end of the upper body, and the bed plate lifting beam (14) of the leg corresponding plate lifting device is arranged along the width direction of the bed frame (1), and is rotatably connected to the lower part of the corresponding plate (2) of the leg; the linkage mechanism driving motor (9) drives the synchronous transmission structure to rotate the two lead screws, so as to make the two linkage mechanism sliders respectively (11) Move, the two linkage mechanism sliders (11) respectively drive the hinge rod (12) through the respective linkage mechanism rotating shafts, so that the linear displacement of the linkage mechanism slider (11) is converted into the corresponding position in the respective device. Angular displacement of the linkage mechanism rotating shaft (15), the front end of the upper body corresponds to the linkage mechanism rotating shaft (15) in the square plate lifting device through the linkage mechanism bed plate lifting hinge rod (13) to make the linkage mechanism rotating shaft (15) The angular displacement of the base plate is converted into the rise/fall of the bed plate lifting beam (14) of the linkage mechanism. The angular displacement of the rotating shaft (15) of the linkage mechanism is converted into the descending/rising of the bed plate lifting beam (14) of the linkage mechanism, so that the front end of the upper body corresponds to the rising/descending of the square plate, and the legs correspond to Plate (2) descends/rises; The left and right turning mechanism includes a turning mechanism lead screw (16), a turning mechanism sliding block (17), a turning mechanism rotating shaft drive hinge rod (18), a turning mechanism rotating shaft (19), a left lifting structure, a right lifting structure and a turning mechanism Mechanism drive motor (20); said turning mechanism rotating shaft drive hinge rod (18) is composed of two connecting rods hinged at one end at one end, and said left lifting structure is the same as said right lifting structure, including the lifting and lowering of the bed plate of the turning mechanism A beam (21) and a bed lift arm (22) of the turning mechanism, one end of the lift arm (22) of the turning mechanism is vertically fixed on the bed lifting beam (21) of the turning mechanism, and the turning mechanism lead screw ( 16) It is arranged along the width direction of the bed frame (1), and is rotatably connected to the bed frame (1), the sliding block (17) of the turning mechanism is threadedly connected with the lead screw (16) of the turning mechanism, and the The turning mechanism rotating shaft (19) is located between the turning mechanism lead screw (16) and the bed board, is arranged along the length direction of the bed frame (1), and is rotatably connected with the bed frame (1). One end of the hinge rod (18) driven by the mechanism rotating shaft is hinged with the sliding block (17) of the turning mechanism, and the other end thereof is fixedly connected with the rotating shaft (19) of the turning mechanism. The left lifting structure and the right lifting structure The other end of the lifting and lowering arm (22) of the bed of the turning mechanism is fixed on the rotating shaft (19) of the turning mechanism, and the lifting and lowering arms (22) of the turning mechanism of the left lifting structure and the right lifting structure are V-shaped The fonts are symmetrically arranged on the left and right sides of the rotating shaft (19) of the turning mechanism, and the bed lifting beams (21) of the turning mechanism of the left lifting structure and the right lifting structure are respectively along the length direction of the bed frame (1). are supported on the left and right sides of the bottom of the middle strip plate of the upper body; the turning mechanism driving motor (20) drives the turning mechanism lead screw (16) to rotate, so that the turning mechanism slider (17) moves The slider (17) of the turning mechanism drives the hinge rod (18) through the rotating shaft of the turning mechanism to convert the linear displacement of the sliding block (17) of the turning mechanism into the angular displacement of the rotating shaft (19) of the turning mechanism, so The turning mechanism rotating shaft (19) converts the angular displacement of the turning mechanism shaft (19) into the left lifting structure and The lifting movement of the bed plate lifting beam (21) of the turning mechanism of the right lifting structure makes the left or right side of the middle strip plate of the upper body rise. 2 . The bed for helping the elderly and the disabled according to claim 1 , wherein the synchronous transmission structure of the head-up and bending-leg linkage mechanism is that the front end of the upper body corresponds to a square plate lifting device and the leg corresponds to the plate lifting and lowering device. 3 . One end of the lead screw (10) of the linkage mechanism of the device is fixedly connected together. 3 . The bed for helping the elderly and the disabled according to claim 1 , wherein the synchronous transmission structure of the head-up and bending-leg linkage mechanism is that the front end of the upper body corresponds to a square plate lifting device and the corresponding plate for the legs. 4 . The adjacent ends of the lead screw (10) of the linkage mechanism of the lifting device are respectively provided with driven bevel gears, and the rotating shaft of the linkage mechanism drives the motor (9) to be fixedly installed with the drive bevel gear, the drive bevel gear and the two movable cones The gears are meshed and connected, so that the linkage mechanism driving motor (9) drives the two linkage mechanism lead screws (10) to rotate synchronously. 4. A bed for helping the elderly and disabled according to any one of claims 1-3, wherein the supporting and positioning structure of each of the sub-boards is a frame formed by welding angle irons, and each of the angle The inner corner of the iron faces the inside of the frame, one side ring of each angle iron is arranged on the inner edge of the bottom of the frame on the same horizontal plane to form the support platform, and the other side ring of each angle iron is vertically surrounded by the frame. The baffle is formed.

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