CN113476240B - Turning-over nursing bed for bedridden patient - Google Patents

Abstract

The invention discloses a turning-over nursing bed for bedridden patients, which comprises a bed main body, fixing devices, knee bending devices and pushing devices, wherein the front end and the rear end of the bed main body are vertically provided with a bed head and a bed tail which extend upwards, a plurality of rows of air cushions capable of independently adjusting the inflation quantity are paved on the bed main body, the air cushions are paved on the bed surface of the whole bed main body, the fixing devices are arranged at intervals on the left and the right in the bed head, the knee bending devices are arranged at intervals on the left and the right in the bed tail, the four pushing devices are distributed below the bed main body in a rectangular shape, the pushing devices on the left and the right are symmetrically arranged, the pushing device on the front side is positioned below the shoulder and is used for pushing the side surface of the shoulder joint, and the pushing device on the rear side is positioned below the knee and is used for pushing the side surface of the knee joint after the knee bending. The knee on one leg of the patient lying in bed can be bent under the action of the fixing device and the knee bending device, and then the shoulder joint side and the knee joint side after knee bending of the patient lying in bed are respectively pushed by the pushing device, so that the patient lying in bed can turn over.

Description

A rollover nursing bed for bedridden patients

technical field

The invention relates to the technical field of medical equipment, in particular to a turning nursing bed for bedridden patients.

Background technique

In the prior art, the principle of turning over the nursing bed with the turning function is to separate the bed board from the middle, and then lift one side up to realize turning, but this turning method does not conform to the turning method commonly used by nursing staff, and for A bedridden patient with a large body weight requires a large amount of power when turning over, which is prone to failure of turning over.

SUMMARY OF THE INVENTION

The present invention proposes a turning-over nursing bed for bedridden patients, whose turning-over method conforms to the turning-over method of nursing staff and saves effort for turning over.

To this end, the technical solution adopted in the present invention is: a turning care bed for bedridden patients, comprising a bed body, a fixing device, a knee bending device and a pushing device, and the front and rear ends of the bed body are vertically provided with upwardly extending beds At the head and the end of the bed, there are multiple rows of air cushions that can independently adjust the inflation volume on the bed body, and the air cushions cover the entire bed surface of the bed body. Fixing devices on the shoulders on both sides, a knee bending device for pushing the bedridden patient to complete the knee bending action is arranged at the left and right intervals in the bed end, and four pushing devices are arranged in a rectangular distribution under the bed body, and the pushing devices on the left and right sides Symmetrically arranged, the pushing device on the front side is located under the shoulder to push the side of the shoulder joint, and the pushing device on the rear side is located under the knee to push the side of the knee joint after bending the knee, so as to complete the turning action.

As a preference of the above solution, the headboard and the foot of the bed have the same structure, the head of the bed and the foot of the bed both adopt a hollow box structure, and the left and right ends of the side of the head of the bed near the foot of the bed are respectively provided with vertical fixing plates, Two push-pull plates that can slide left and right are arranged between the two vertical fixing plates, a push-pull guide rail is arranged on the upper side or the lower side of the bed head, and the inner side of the vertical fixing plate is provided with a push-pull plate for pushing A push-pull cylinder with the push-pull plate sliding left and right along the push-pull guide rail can drive the two push-pull plates to slide in opposite directions when the push-pull cylinder works, thereby realizing the extension of the fixing device and the knee bending device.

Further preferably, the fixing device and the knee bending device have the same structure as including a telescopic cylinder arranged along the front-rear direction of the bed body, the telescopic end of the telescopic cylinder is hinged with a push rod, and the end of the push rod is provided with a buffer pad.

Further preferably, it also includes an adjustment device, each of the fixing device and the knee bending device is correspondingly provided with an adjustment device, the adjustment device is arranged in the head of the bed or the end of the bed, and the adjustment device includes an up-down adjustment device and a left-right adjustment device, which can drive the fixing device. The device and the knee bending device can move left and right and up and down in the corresponding bed head or bed end;

The up-down adjusting device includes an up-down adjusting guide rail fixedly arranged on the inner wall of the bed head, the up-down adjusting rail is provided with an up and down adjusting seat through an up and down adjusting slider, and an up and down adjusting screw seat is arranged on the up and down adjusting seat, and the bed head is provided with an up and down adjusting thread seat. The upper and lower adjustment motors are fixed on the inner wall, and the output ends of the upper and lower adjustment motors are provided with up and down adjustment screws. The upper and lower adjustment screws are connected with the upper and lower adjustment screw bases. The cooperation with the upper and lower adjusting thread seat can drive the upper and lower adjusting seat to move up and down on the upper and lower adjusting guide rails;

The left-right adjusting device comprises a left-right adjusting guide rail fixedly arranged on the up-down adjusting seat, the left-right adjusting guide rail is provided with a left-right adjusting seat through a left-right adjusting slider, and a left-right adjusting screw seat is arranged on the left-right adjusting seat, and the up-down adjusting The left and right adjustment motors are fixedly arranged on the adjustment seat, and the output ends of the left and right adjustment motors are provided with left and right adjustment screws. At the position of the lower end, when the left and right adjusting motor works, it can drive the left and right adjusting seat and the telescopic cylinder to move left and right on the left and right adjusting guide rails.

Further preferably, it also includes a folding device, each of the fixing device and the knee bending device is provided with a corresponding folding device, the folding device is used to fold the top rod, the folding device includes a winding gear with internal teeth, the roll The wire gear is fixedly arranged on the upper end of the left and right adjustment seats, and a driving gear meshing with it is arranged in the wire winding gear. The driving gear is driven to rotate by a wire winding motor, and the wire winding motor is fixed on the left and right adjustment seats. .

Further preferably, the pushing device comprises a pushing rod, an up-down moving device, a left-right moving device and a front-rear moving device, the pushing rod is fixedly arranged on the front-rear moving device by a pushing cylinder, and the front-rear moving device can drive the pushing rod to move back and forth, The front and rear moving device is fixed on the up and down moving device, the up and down moving device can drive the front and rear moving device to move up and down, the up and down moving device is arranged on the left and right moving device, and the left and right moving device can drive the up and down moving device to move left and right , the left and right moving device is fixedly arranged under the bed body;

The left and right moving device includes a push seat fixedly arranged under the bed body, a left and right moving slider and a left and right moving thread seat are fixedly arranged under the push seat, and a left and right moving guide rail is slidably arranged on the left and right moving slider. The left and right moving guide rails are fixedly provided with a left and right moving seat, one end of the left and right moving seat is fixed with a left and right moving motor, the output end of the left and right moving motor is provided with a left and right moving screw rod, and the left and right moving screw rod and the left and right moving thread seat are fixed. Thread connection is adopted between them. When the left and right moving motor works, the left and right moving base can be driven to move left and right through the thread cooperation between the left and right moving screw and the left and right moving thread seat;

The up-down moving device includes a first up-down moving slider fixedly arranged on the side of the left-right moving base, the first up-down moving slider is slidably provided with an up-down moving guide rail, and the left-right moving seat is fixedly provided with a first up-down moving block. motor, the output end of the first up-down movement motor is fixedly provided with a first up-down movement screw rod, the lower end of the up-down movement guide rail is provided with a first up-down movement screw seat, the first up-down movement screw rod and the first up-down movement screw thread The bases are connected by threads. When the first up-down moving motor works, the up-and-down moving guide rail can be driven to move up and down through the thread cooperation between the first up-down moving screw rod and the first up-down moving screw base;

The upper end of the up-down moving guide rail is slidably provided with a second up-down moving slider, the side of the second up-down moving slider is provided with an up-down moving seat, and a second up-down moving motor is fixed on the left-right moving seat. The output end of the second up-down movement motor is provided with a second up-down movement screw, the up-down movement base is provided with a second up-down movement screw base, and the second up-down movement screw and the second up-down movement screw base are connected by screw threads , when the second up-down movement motor works, the up-down movement base can be driven to move up and down through the threaded connection between the second up-down movement screw and the second up-down movement screw base;

The front and rear moving device includes a front and rear moving guide rail that is fixedly arranged on the up and down moving seat, a front and rear moving slider is slidably arranged on the front and rear moving guide rail, and a front and rear moving seat is fixed on the front and rear moving slider, and the front and rear moving The seat is fixedly provided with a front and rear moving thread seat, the up and down moving seat is provided with a front and rear moving motor, and the output end of the front and rear moving motor is fixedly provided with a front and rear moving screw rod. Threaded connection, a push cylinder is fixed on the front and rear moving seat, and a push rod is fixed on the telescopic end of the pushing cylinder. When the front and rear moving motor works, the front and rear moving screw is connected with the front and rear moving thread seat through the thread connection, It can drive the front and rear moving seat to move back and forth.

Further preferably, each of the air cushions is individually provided with a regulating valve for adjusting the inflation amount, and all the air cushions are supplied with air through an air supply device.

Further preferably, at least four universal wheels with brakes are arranged in a rectangular distribution under the bed body, and safety guardrails are hinged on the left and right sides of the bed body.

Further preferably, the bed body includes a front board, a middle board, a back board and a bed frame, the rear end of the front board is hinged on the front end of the middle board, the rear end of the middle board is hinged on the front end of the rear board, The middle plate is fixedly arranged on the bed frame, a back lifting device is arranged under the front plate, a leg bending device is arranged under the rear plate, a toilet seat hole is arranged in the middle of the middle plate, and the toilet seat hole is arranged There is a toilet device on it.

The beneficial effects of the present invention are as follows: through the action of the fixing device and the knee bending device, the knee of the bedridden patient can be bent, and then the pusher device can push the side of the shoulder joint of the bedridden patient and the side of the knee joint after bending the knee, so that the bedridden patient can be realized. This way of turning over is in line with the way of turning over by the nursing staff. This way of turning over is labor-saving, and because the knees are in a bent state, it is not easy to turn the patient into a tummy state; an air cushion is provided on the main body of the bed, and the air cushion is adjusted when turning over to make the patient The air cushion on the side facing over is higher than the opposite side, which can prevent direct impact on the bed after turning over, with buffering effect and will not cause secondary damage; multiple air cushions are provided to adjust the air cushions for the hands and feet The amount of inflation can achieve arm and leg movement.

Description of drawings

FIG. 1 is a top view of the present invention.

FIG. 2 is a schematic diagram of the pushing device in the present invention.

Figure 3 is a schematic diagram of the head or foot of the bed in the present invention.

FIG. 4 is a schematic diagram of a push-pull plate in the head or foot of the bed in the present invention.

FIG. 5 is a schematic diagram of the folding device in the present invention.

Detailed ways

Below by embodiment and in conjunction with accompanying drawing, the present invention is further described:

As shown in Fig. 1-Fig. 5, a turning care bed for bedridden patients is mainly composed of a bed body 1, a fixing device, a knee bending device, a pushing device, an adjusting device and a folding device. At the front and rear ends of the bed main body 1 are vertically arranged a bed head 3 and a bed foot 4 extending upward. In order to facilitate the movement and fixation of the entire nursing bed, at least four universal pans with brakes are arranged in a rectangular distribution under the bed main body 1 Wheels, in order to improve the installability of the nursing bed, safety guardrails 48 are hinged on the left and right sides of the bed body 1, wherein the universal wheel with brakes and the safety guardrail 48 are the prior art of the nursing bed, and will not be repeated here. .

The whole bed body 1 includes a front board, a middle board, a back board and a bed frame. On the top, a back lifting device is arranged under the front plate, and a leg bending device is arranged under the rear plate, and the nursing bed can be folded in three through the back lifting device and the bending leg device. A toilet seat hole is arranged in the middle part of the middle plate, and a toilet seat device is arranged on the toilet seat hole to facilitate the defecation of bedridden patients. The back-lifting device, the leg-bending device and the toilet sitting device are all existing technologies of nursing beds, and will not be repeated here.

A plurality of rows of air cushions 2 that can independently adjust the inflation amount are laid on the bed body 1, and the air cushions 2 cover the entire top surface of the bed body 1. Each air cushion 2 is independently provided with a regulating valve for adjusting the inflation amount. The air volume of the air cushion of the head and feet can realize the movement of arms and legs. All air cushions are supplied with an air supply unit.

Two fixing devices are arranged at left and right intervals in the bed head 3, and two knee bending devices are arranged at left and right intervals in the bed end 4. Through the interaction between the fixing device and the knee bending device, the fixing device is pressed against the shoulder of the bedridden patient, and the knee bending device Pushing the soles of the patient's feet can lift the knee joint of the bedridden patient to achieve knee flexion. Four pushing devices are arranged in a rectangular distribution under the bed body 1, and the pushing devices on the left and right sides are symmetrically arranged. Used to push the side of the knee joint after flexing the knee.

The head of the bed 3 and the foot of the bed 4 have the same structure, and both the head of the bed 3 and the foot of the bed 4 are hollow boxes. Vertical fixing plates 5 are respectively arranged at the left and right ends of the bed head 3 on the side of the bed end 4 , and two push-pull plates 6 that can slide left and right are arranged between the two vertical fixing plates 5 . The side or the lower side is provided with a push-pull guide rail, and the inner side of the vertical fixing plate 5 is provided with a push-pull cylinder 7 for pushing the push-pull plate 6 to slide left and right along the push-pull guide rail. When the push-pull cylinder 7 works, it can drive two push-pull plates 6 Sliding in the opposite direction allows extension of the fixation device and the knee flexion device. When the fixing device and the knee bending device are inactive, the bed head 3 and the bed end 4 can be closed to prevent dust from entering.

The fixing device has the same structure as the knee bending device and includes a telescopic cylinder 8 arranged along the front and rear directions of the bed body 1 .

Each of the fixing device and the knee bending device is correspondingly provided with an adjusting device, and the adjusting device is arranged in the head of the bed 3 or the foot of the bed 4 . Or move left and right and up and down within the bed end 4.

The specific structure of the up-down adjusting device includes an up-down adjusting guide rail 11 fixedly arranged on the inner wall of the bed head, the up-down adjusting rail 11 is provided with an up and down adjusting seat 13 through the up and down adjusting slider 12, and an up and down adjusting screw seat is provided on the up and down adjusting seat 13, and the bed head is provided with an up and down adjusting screw seat. 3 or the inner wall of the bed end 4 is fixedly provided with an up and down adjusting motor 14, the output end of the up and down adjusting motor 14 is provided with an up and down adjusting screw 15, and the up and down adjusting screw 15 and the up and down adjusting thread seat are connected by a thread, when the up and down adjusting motor 14 is working , Through the cooperation between the up and down adjusting screw 15 and the up and down adjusting thread seat, the up and down adjusting seat 13 can be driven to move up and down on the up and down adjusting guide rail 11 .

The specific structure of the left and right adjustment device includes a left and right adjustment guide rail 16 fixedly arranged on the upper and lower adjustment seat 13, the left and right adjustment guide rail 16 is provided with a left and right adjustment seat 18 through a left and right adjustment slider 17, and a left and right adjustment screw seat 19 is arranged on the left and right adjustment seat 18. The left and right adjustment motors 20 are fixedly arranged on the upper and lower adjustment bases 13, and the left and right adjustment screws 21 are arranged at the output ends of the left and right adjustment motors. The adjustment seat 18 is located near the lower end. When the left and right adjusting motor 20 works, it can drive the left and right adjusting seat 18 and the telescopic cylinder 8 to move left and right on the left and right adjusting guide rails 16 .

Each of the fixing device and the knee bending device is provided with a corresponding folding device. The folding device is used to fold the top rod 9. The specific structure of the folding device includes a winding gear 22 with internal teeth. The winding gear 22 is fixedly arranged on the left and right adjustment seats. At the upper end of 18, a driving gear 23 meshing with it is arranged in the winding gear 22. The driving gear 23 is driven to rotate by the winding motor 24, and the winding motor 24 is fixedly arranged on the left and right adjustment seats 18.

The specific structure of the push device includes a push rod 25, an up and down moving device, a left and right moving device, and a front and rear moving device. The push rod 25 is fixed on the front and rear moving device by pushing the cylinder 26, and the front and rear moving device can drive the push rod 25 to move back and forth. The device is fixed on the up and down moving device, the up and down moving device can drive the front and rear moving device to move up and down, the up and down moving device is arranged on the left and right moving device, the left and right moving device can drive the up and down moving device to move left and right, and the left and right moving device is fixed on the bed body 1 below.

The specific structure of the left and right moving device includes a push seat 27 fixedly arranged under the bed main body 1, a left and right moving slider 28 and a left and right moving thread seat are fixedly arranged under the pushing seat 27, and a left and right moving guide rail 29 is slidably arranged on the left and right moving slider 28. The left and right moving guide rail 29 is fixedly provided with a left and right moving seat 30, one end of the left and right moving seat 30 is fixedly provided with a left and right moving motor 31, the output end of the left and right moving motor 31 is provided with a left and right moving screw 32, and the left and right moving screw 32 and the left and right moving thread The bases are connected by threads. When the left-right moving motor 31 works, the left-right moving screw 32 can be driven to move left and right by the thread fit between the left-right moving screw 32 and the left-right moving thread seat.

The specific structure of the up and down moving device includes a first up and down moving slider 33 fixedly arranged on the side of the left and right moving base 30, the first up and down moving slider 33 is slidably provided with an up and down moving guide rail 34, and the left and right moving seat 30 is fixedly provided with a first up and down moving block 33. The motor 35 is moved up and down, the output end of the first up and down motor 35 is fixedly provided with a first up and down movement screw 36, the lower end of the up and down movement guide rail 34 is provided with a first up and down movement screw seat 37, and the first up and down movement screw 36 is connected with the first up and down movement screw 36. The moving screw seats 37 are connected by screw threads. When the first vertical moving motor 35 works, the first vertical moving screw 36 and the first vertical moving screw seat 37 can drive the vertical moving guide rail 34 to move up and down.

The upper end of the up-and-down guide rail 34 is slidably provided with a second up-and-down moving slider 38 , a side of the second up-down moving slider 38 is provided with an up-down moving seat 39 , and a second up-down moving motor 40 is fixed on the left-right moving seat 30 . The output end of the up and down movement motor 40 is provided with a second up and down movement screw 41, the up and down movement seat 39 is provided with a second up and down movement thread seat, and the second up and down movement screw 41 and the second up and down movement screw seat are connected by screw threads. When the second up-down movement motor 40 is working, the up-down movement base 39 can be driven to move up and down through the screw connection between the second up-down movement screw 41 and the second up-down movement screw base.

The specific structure of the front and rear moving device includes a front and rear moving guide rail 43 fixed on the up and down moving seat 39, a front and rear moving block 44 is slidably arranged on the front and rear moving guide rail 43, and a front and rear moving seat 45 is fixed on the front and rear moving block 44. The moving seat 45 is fixedly provided with a front and rear moving thread seat 42, the up and down moving seat 39 is provided with a front and rear moving motor 46, the output end of the front and rear moving motor 46 is fixedly provided with a front and rear moving screw 47, the front and rear moving screw 47 and the front and rear moving screw seat 42 A threaded connection is adopted between them, a push cylinder 26 is fixed on the front and rear moving base 45, a push rod 25 is fixed at the telescopic end of the push cylinder 26, and a rubber pad is provided at the other end of the push rod 25. When the front and rear moving motor 46 is working , Through the thread connection between the front and rear moving screw 47 and the front and rear moving thread seat 42, the front and rear moving seat 45 can be driven to move back and forth.

The nursing bed is provided with visual identification devices on the head and tail of the bed, which are used to determine the body shape and lying position of the bedridden patient, so that the fixing device, the knee bending device and the pushing device can be pushed accurately.

The steps for turning over the nursing bed are as follows:

1. Bend the knees, (1) The push-pull cylinder 7 works, so that the two push-pull plates 6 at the head or the end of the bed move in opposite directions, leaving the position where the fixing device and the knee-bending device are extended, the push-pull cylinder 7 stops working; (2) Adjustment device Turn on the motor to work, adjust the two telescopic cylinders 8 on the head of the bed 3 to the position corresponding to the shoulder of the bedridden patient, adjust the telescopic cylinder 8 on the end of the bed 3 to the position corresponding to the sole of the bedridden patient, and adjust the device The upper motor stops working; (3) the folding device works, so that the two ejector rods 9 on the bed head 3 and one ejector rod 9 at the end of the bed are parallel to the telescopic cylinder 8; The rod 9 and a top rod 9 at the end of the bed can bend the knee; (5) the telescopic cylinder 8 works in reverse, retracts the top rod 9, and then the folding device works in reverse to fold the top rod 9; (6) the push-pull cylinder 7 works in reverse, Move the two push-pull plates 6 at the head or end of the bed toward each other until the two push-pull plates 6 contact, and the push-pull cylinder 7 stops working;

2. Turn over, (1) The motor on the push device on the same side as the knee bender works, and the front push rod 25 is adjusted to be opposite to the side of the shoulder joint, and the back side is opposite to the side of the knee joint where the knee is bent, and the motor on the push device stops working; (2) Push the cylinder 26 to work, so that the push rod 25 is in contact with the patient first, and then push it at the same time to turn over and push the cylinder 26 to stop working; (3) Push the cylinder 26 and the motor on the push device to work in reverse, and push the rod 25 back bit.

When bending the knee and turning over, the adjusting device and the pushing device are adjusted in real time as needed to ensure the real-time contact between the top rod 9 and the pushing rod 25 and the patient, and when turning over, the air cushion on the other side of the bent knee is increased.

Claims (8)

1. A rollover nursing bed for bedridden patients, comprising a bed body (1), characterized in that: the front and rear ends of the bed body (1) are vertically provided with a bed head (3) and a bed foot (4) extending upwards , and also includes a fixing device, a knee bending device and a pushing device, the bed body (1) is laid with multiple rows of air cushions (2) whose air volume can be adjusted independently, and the air cushions (2) cover the entire bed body (1). On the bed surface, the left and right spacers of the bed head (3) are provided with fixing devices for pressing the left and right shoulders of the bedridden patient respectively. Knee bending device, four pushing devices are arranged in a rectangular distribution under the bed body (1), and the pushing devices on the left and right sides are symmetrically arranged. The pushing device is located under the knee and is used to push the side of the knee joint after flexing the knee to complete the turn over; The pushing device includes a pushing rod (25), an up-down moving device, a left-right moving device, and a front-rear moving device. The pushing rod (25) is fixedly arranged on the front-rear moving device by pushing the cylinder (26). Drive the push rod (25) to move back and forth, the front and rear moving device is fixed on the up and down moving device, the up and down moving device can drive the front and rear moving device to move up and down, the up and down moving device is arranged on the left and right moving device, the left and right moving device The moving device can drive the up and down moving device to move left and right, and the left and right moving device is fixedly arranged under the bed body (1); The left-right moving device comprises a push seat (27) fixedly arranged under the bed main body (1), and a left-right moving slider (28) and a left-right moving thread seat are fixedly arranged under the pushing seat (27). A left and right moving guide rail (29) is slidably arranged on the slider (28), a left and right moving seat (30) is fixedly arranged on the left and right moving guide rail (29), and one end of the left and right moving seat (30) is fixedly provided with a left and right moving seat (30). A motor (31), the output end of the left-right moving motor (31) is provided with a left-right moving screw (32), and the left-right moving screw (32) is connected with the left-right moving thread seat by a screw thread. When the left-right moving motor (31) ) during operation, through the thread fit between the left and right moving screw (32) and the left and right moving thread seat, the left and right moving seat (30) can be driven to move left and right; The up-down moving device comprises a first up-down moving slider (33) fixedly arranged on the side surface of the left-right moving seat (30), and an up-down moving guide rail (34) is slidably arranged on the first up-down moving slider (33), so A first up-and-down movement motor (35) is fixedly arranged on the left-right movement seat (30), and a first up-down movement screw rod (36) is fixedly arranged at the output end of the first up-down movement motor (35). The lower end of (34) is provided with a first up and down moving screw seat (37), the first up and down moving screw (36) and the first up and down moving screw seat (37) are threadedly connected, when the first up and down moving motor ( 35) During operation, the up and down moving guide rail (34) can be driven to move up and down through the thread cooperation between the first up and down moving screw (36) and the first up and down moving thread seat (37); The upper end of the up-down moving guide rail (34) is slidably provided with a second up-down moving slider (38). (30) is fixedly provided with a second up-down movement motor (40), the output end of the second up-down movement motor (40) is provided with a second up-down movement screw (41), and the up-down movement seat (39) is provided with a second up-down movement screw (41). There is a second up-and-down moving screw seat, the second up-down moving screw (41) and the second up-down moving screw seat are connected by a screw thread, when the second up-down moving motor (40) works, the second up-down moving screw (41) 41) The threaded connection with the second up and down moving threaded seat can drive the up and down moving seat (39) to move up and down; The front and rear moving device comprises a front and rear moving guide rail (43) fixedly arranged on the up and down moving seat (39), and a front and rear moving slider (44) is slidably arranged on the front and rear moving guide rail (43), and the front and rear moving slider is slidably arranged. (44) A front and rear moving seat (45) is fixedly arranged on the front and rear moving seat (45), a front and rear moving thread seat (42) is fixed on the front and rear moving seat (45), and a front and rear moving motor (46) is arranged on the up and down moving seat (39). ), the output end of the front and rear movement motor (46) is fixedly provided with a front and rear movement screw rod (47), and the front and rear movement screw rod (47) is connected with the front and rear movement thread seat (42) by a screw thread. (45) is fixedly provided with a push cylinder (26), and the telescopic end of the push cylinder (26) is fixed with a push rod (25). The threaded connection between the front and rear moving threaded seats (42) can drive the front and rear moving seats (45) to move back and forth. 2. The bedside nursing bed for bedridden patients according to claim 1, characterized in that: the bed head (3) and the bed end (4) have the same structure, and both the bed head (3) and the bed end (4) are made of The hollow box body structure, the left and right ends of the bed head (3) on the side of the bed end (4) are respectively provided with vertical fixing plates (5), and two vertical fixing plates (5) are arranged between the two vertical fixing plates (5). A push-pull plate (6) that can slide left and right, a push-pull guide rail is provided on the upper or lower side of the bed head (3), and a push-pull plate ( 6) The push-pull cylinder (7) sliding left and right along the push-pull guide rail, when the push-pull cylinder (7) works, can drive the two push-pull plates (6) to slide in opposite directions, thereby realizing the extension of the fixing device and the knee bending device. 3. The nursing bed for bedridden patients according to claim 2, characterized in that the fixing device and the knee bending device have the same structure and include a telescopic cylinder (8) arranged along the front and rear directions of the bed body (1), the The telescopic end of the telescopic cylinder (8) is hinged with a push rod (9), and the end of the push rod (9) is provided with a buffer pad (10). 4. The nursing bed for bedridden patients according to claim 3, characterized in that it further comprises an adjusting device, each of the fixing device and the knee bending device is correspondingly provided with an adjusting device, and the adjusting device is provided at the head of the bed (3) Or in the bed end (4), the adjusting device includes an up-down adjusting device and a left-right adjusting device, which can drive the fixing device and the knee bending device to move left and right and up and down in the corresponding bed head (3) or bed end (4); The up-down adjusting device comprises an up-down adjusting guide rail (11) fixedly arranged on the inner wall of the bed head (3) or the bed end (4), and the up-down adjusting rail (11) is provided with an up-down adjusting seat ( 13), the upper and lower adjustment seat (13) is provided with an upper and lower adjustment thread seat, and an upper and lower adjustment motor (14) is fixedly arranged on the inner wall of the bed head (3) or the bed end (4), and the upper and lower adjustment motor (14) ) output end is provided with an up and down adjusting screw (15), the up and down adjusting screw (15) and the up and down adjusting screw seat are connected by a thread, when the up and down adjusting motor (14) is working, the up and down adjusting screw (15) is connected with the up and down adjusting screw (15). The cooperation between the upper and lower adjusting screw bases can drive the upper and lower adjusting bases (13) to move up and down on the upper and lower adjusting guide rails (11); The left-right adjusting device comprises a left-right adjusting guide rail (16) fixedly arranged on the up-down adjusting seat (13), and the left-right adjusting guide rail (16) is provided with a left-right adjusting seat (18) through a left-right adjusting slider (17), so The left and right adjustment bases (18) are provided with left and right adjustment screw seats (19), the up and down adjustment bases (13) are fixedly provided with left and right adjustment motors (20), and the output ends of the left and right adjustment motors (20) are provided with The left and right adjustment screws (21) are threaded with the left and right adjustment screw seats (19), and the telescopic cylinder (8) is arranged at the position near the lower end of the left and right adjustment seats (18), When the left and right adjusting motor (20) works, it can drive the left and right adjusting seat (18) and the telescopic cylinder (8) to move left and right on the left and right adjusting guide rails (16). 5. The turning care bed for bedridden patients according to claim 4, characterized in that: it further comprises a folding device, and each fixing device and the knee bending device are correspondingly provided with a folding device, and the folding device is used for placing the ejector rod (9 ) folding, the folding device includes a winding gear (22) with internal teeth, the winding gear (22) is fixedly arranged on the upper end of the left and right adjustment seats (18), inside the winding gear (22) A driving gear (23) meshing with it is provided, the driving gear (23) is driven to rotate by a winding motor (24), and the winding motor (24) is fixedly arranged on the left and right adjustment seats (18). 6 . The bed-ridden patient turning care bed according to claim 1 , wherein each of the air cushions ( 2 ) is independently provided with a regulating valve for adjusting the air volume, and all the air cushions ( 2 ) are supplied with air through a single air supply. 7 . The device is supplied with air. 7. The nursing bed for bedridden patients according to claim 1, characterized in that: at least four universal wheels with brakes are arranged under the bed main body (1) in a rectangular distribution, and the bed main body (1) Safety guardrails (48) are hinged on the left and right sides of the fuselage. 8 . The turning care bed for bedridden patients according to claim 1 , wherein the bed body comprises a front board, a middle board, a rear board and a bed frame, and the rear end of the front board is hinged to the front end of the middle board. 9 . The rear end of the middle plate is hinged to the front end of the rear plate, the middle plate is fixedly arranged on the bed frame, a back lifting device is arranged under the front plate, and a leg bending device is arranged under the rear plate, A toilet seat hole is arranged in the middle part of the middle plate, and a toilet seat device is arranged on the toilet seat hole.

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