CN111150583A

CN111150583A - Inclination angle regulator of strut type sickbed

Info

Publication number: CN111150583A
Application number: CN202010128274.4A
Authority: CN
Inventors: 何战战; 杨帆
Original assignee: Individual
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-05-15
Anticipated expiration: 2040-02-28
Also published as: CN111150583B

Abstract

The invention discloses a column type inclination angle adjuster of a sickbed, and relates to the technical field of medical instruments. The invention comprises a sickbed, a bed board is fixedly connected in the sickbed, an inclination angle adjusting device is fixedly connected with the bed board close to the side wall of the sickbed head, a driving device is fixedly connected with the bottom of the sickbed tail, a controller is fixedly connected with the side wall of the sickbed head, the inclination angle adjusting device comprises a first rotating plate, the bed board close to the side wall of the sickbed head is rotatably connected with the first rotating plate through a hinge, the first rotating plate far away from the side wall of the bed board is rotatably connected with a second rotating plate through a hinge, and the second rotating plate far away from the side wall of the first rotating plate is rotatably connected with a third rotating plate through a hinge.

Description

Inclination angle regulator of strut type sickbed

Technical Field

The invention relates to the technical field of medical instruments, in particular to a column type inclination angle regulator of a sickbed.

Background

The sickbed generally refers to a nursing bed, is designed according to the treatment needs of patients and the life habits of lying in bed, can be accompanied by family members, has a plurality of nursing functions and operating buttons, and has the functions of insulating and safe beds, such as weight monitoring, back-taking and dining, intelligent turning-over, bedsore prevention, negative pressure urine receiving and bed alarming monitoring, moving transportation, rest, rehabilitation, drug administration and transfusion and the like, and the rehabilitation sickbed can be used independently and can also be matched with treatment or rehabilitation equipment for use; the inclination angle adjuster is mainly used for lifting up the bed head of a sickbed to help a patient sit up on the sickbed, and the column type sickbed adopts a column to support the lifted bed head, so that the bed head is ensured to be stable after being lifted up.

The existing sickbed inclination angle regulator only can lift a single headboard, the edge folding can be caused when the inclination angle of the bending part is too large, the lifted headboard cannot be attached to the back of a patient, the comfort level of a sickbed is reduced, meanwhile, the existing headboard is in an inclined plane state after being lifted, the patient with inconvenient action can easily incline to the bedside after sitting up, the discomfort is caused, and therefore how to enable the headboard to be attached to the back of the patient and prevent the patient from inclining to the bedside is a technical problem which needs to be solved by technical personnel in the field.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a column type inclination angle regulator of a sickbed, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a column type inclination angle adjuster of a sickbed comprises the sickbed, wherein a bed board is fixedly connected inside the sickbed, an inclination angle adjusting device is fixedly connected to the side wall of the bed head of the sickbed, which is close to the bed tail of the sickbed, a driving device is fixedly connected to the bottom of the bed tail of the sickbed, and a controller is fixedly connected to the side wall of the bed head of the sickbed;

the inclination angle adjusting device comprises a first rotating plate, the bed plate is connected with a first rotating plate through hinge rotation near the side wall of the bed head of the sickbed, the first rotating plate is connected with a second rotating plate through hinge rotation far away from the side wall of the bed plate, the second rotating plate is connected with a third rotating plate through hinge rotation far away from the side wall of the first rotating plate, the two sides of the first rotating plate are connected with a first side wing plate through hinge rotation, the two sides of the second rotating plate are connected with a second side wing plate through hinge rotation, and the two sides of the third rotating plate are connected with a third side wing plate through hinge rotation.

Further, drive arrangement is including being fixed in the first fixed plate of sick bed head of a bed bottom and tailstock bottom, two it is connected with first lead screw to rotate through the bearing between the relative lateral wall of first fixed plate, first fixed plate and fixedly connected with crank are run through to first lead screw one end.

Further, first lead screw week side fixedly connected with first drive gear, two rotate respectively through the bearing between the first fixed plate and be connected with second lead screw and third lead screw, first drive gear week side transmission is connected with first reduction gear, first reduction gear axle center is in second lead screw fixed connection, sick bed head of a bed bottom and the equal fixedly connected with second fixed plate in tailstock bottom.

Further, second lead screw week side fixedly connected with second drive gear, second drive gear week side transmission is connected with second reduction gear, second reduction gear axle center department and third lead screw fixed connection, first lead screw week side threaded connection has first drive block, second lead screw week side threaded connection has the second drive block, third lead screw week side threaded connection has the third drive block, two before the relative lateral wall of second fixed plate respectively fixedly connected with three slide bar.

Furthermore, a first connecting rod is fixedly connected to the side wall of the first driving block, a second connecting rod is fixedly connected to the side wall of the second driving block, a third connecting rod is fixedly connected to the side wall of the third driving block, three sliding rods are slidably connected to the peripheral side faces of the sliding rods respectively, and one ends of the first connecting rod, the second connecting rod and the third connecting rod are fixedly connected to the side wall of the sliding blocks respectively.

Further, first connecting rod week side rotates and is connected with first curved bar, second connecting rod week side rotates and is connected with the second curved bar, third connecting rod week side rotates and is connected with the third curved bar, the equal fixedly connected with rotary rod in first curved bar, second curved bar and third curved bar top, rotary rod one end fixedly connected with cam.

Further, the back surfaces of the first rotating plate, the second rotating plate and the third rotating plate are fixedly connected with two fixing blocks, the back surfaces of the first side wing plate, the second side wing plate and the third side wing plate are fixedly connected with two connecting lugs, the back surfaces of the first rotating plate, the second rotating plate and the third rotating plate are fixedly connected with driving motors, the output end of the controller is electrically connected with the input ends of the three driving motors through electric wires, and the back surfaces of the first rotating plate, the second rotating plate and the third rotating plate are fixedly connected with trigger switches.

Furthermore, one end of an output shaft of the driving motor is fixedly connected with a second connecting rod, the back surfaces of the first rotating plate, the second rotating plate and the third rotating plate are fixedly connected with two limiting blocks, the inner surfaces of the limiting blocks are slidably connected with square tubes, and two opposite side walls of the connecting lugs are rotatably connected with side-shifting bent rods through rotating shafts.

Further, two the equal threaded connection of the relative one end internal surface in side of pipe has two screw threads lead screw, the transmission of drive gear week side is connected with rotary gear, rotary gear axle center department and two screw threads lead screw fixed connection, the side is moved bent lever one end and is passed through the pivot and is connected with square pipe rotation, two screw threads lead screw both ends week side opposite direction.

Further, first side pterygoid lamina is close to second side pterygoid lamina lateral wall and is the scarf, third side pterygoid lamina is close to second side pterygoid lamina lateral wall and is the scarf, second side pterygoid lamina top surface and bottom surface are the scarf.

The invention has the following beneficial effects:

1. this inclination regulator of strut-type sick bed lifts the cambered surface of formation through inclination adjusting device, avoids the dog-ear too big seem obtrusive, and the patient back can be laminated to the cambered surface that a plurality of rotor plates are constituteed, improves the comfort level, and a plurality of rotor plates rotate jointly simultaneously, and inclination superposes the overall height that can improve the head of a bed and lift up, compares single headboard that lifts up, can let the patient sit highly higher straighter, satisfies the patient demand of lying in bed.

2. This column type sick bed's inclination regulator through set up the side wing board that draws close each other on inclination adjusting device both sides, can prevent to the inconvenient patient of action that it from to the bedside slope, compares with prior art, can improve the stability of patient when sitting up.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a tilt angle adjuster for a strut-type hospital bed according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 when laid flat;

FIG. 3 is a schematic view of the opposite side of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is an enlarged view of a portion of FIG. 3 at B;

FIG. 6 is a schematic structural view of the reclining device;

fig. 7 is a partial enlarged view at C in fig. 6.

In the drawings, the components represented by the respective reference numerals are listed below:

in the figure: 1-a sickbed, 2-a bed board, 3-a first rotating board, 4-a first flank board, 5-a second rotating board, 6-a second flank board, 7-a third rotating board, 8-a third flank board, 9-a first fixing board, 10-a crank, 11-a first screw rod, 12-a first transmission gear, 13-a first reduction gear, 14-a second screw rod, 15-a second transmission gear, 16-a second reduction gear, 17-a third screw rod, 18-a second fixing board, 19-a slide rod, 20-a first driving block, 21-a second driving block, 22-a third driving block, 23-a first connecting rod, 24-a second connecting rod, 25-a third connecting rod, 26-a first curved rod, 27-a second curved rod, 28-a third curved rod, 29-rotating rod, 30-fixed block, 31-cam, 32-trigger switch, 33-driving motor, 34-driving gear, 35-double-thread screw rod, 36-rotating gear, 37-square tube, 38-limiting block, 39-side wing curved rod, 40-connecting lug, 41-controller and 42-sliding block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a column type sickbed inclination angle adjuster comprises a sickbed 1, wherein a bed plate 2 is fixedly connected inside the sickbed 1, an inclination angle adjusting device is fixedly connected on the side wall of the bed plate 2 close to the bedside of the sickbed 1, a driving device is fixedly connected at the bottom of the tail of the sickbed 1, and a controller 41 with the model of 6ED1052-1HB08-0BA0 is fixedly connected on the side wall of the bedside of the sickbed 1; the controller 41 is connected with the mains supply, and the controller 41 is used for controlling the positive and negative rotation of the output shafts of the three driving motors 33;

the inclination angle adjusting device comprises a first rotating plate 3, a first rotating plate 3 is rotatably connected to the side wall of the bed plate 2 close to the bed head of the sickbed 1 through a hinge, a second rotating plate 5 is rotatably connected to the side wall of the first rotating plate 3 far away from the first rotating plate 5 through a hinge, the inclination angle adjusting device lifts up a formed arc surface to avoid an overlarge folding angle and a sudden appearance, the arc surface can be attached to the back of a patient to improve the comfort level, the lifting height of the bed head can be improved through the combined action of a plurality of rotating plates, the two sides of the first rotating plate 3 are rotatably connected with a first lateral wing plate 4 through hinges, the two sides of the second rotating plate 5 are rotatably connected with a second lateral wing plate 6 through hinges, the two sides of the third rotating plate 7 are rotatably connected with third lateral wing plates 8 through hinges, the lateral wing plates on the two sides are close to each other, improving the stability of the patient when sitting up.

As shown in fig. 3-5, the driving device includes first fixing plates 9 fixed at the bottom of the head and the tail of the sickbed 1, first lead screws 11 are rotatably connected between the opposite side walls of the two first fixing plates 9 through bearings, and one end of each first lead screw 11 penetrates through the first fixing plate 9 and is fixedly connected with a crank 10; the peripheral side of the first screw rod 11 is fixedly connected with a first transmission gear 12, a second screw rod 14 and a third screw rod 17 are respectively and rotatably connected between the two first fixing plates 9 through bearings, the peripheral side of the first transmission gear 12 is in transmission connection with a first reduction gear 13, the axis of the first reduction gear 13 is fixedly connected with the second screw rod 14, and the bottom of the head of the sickbed 1 and the bottom of the tail of the sickbed are both fixedly connected with a second fixing plate 18; the first screw rod 11 is decelerated through a first deceleration gear 13 so that the number of the rotating circumferences of a second screw rod 14 is reduced, the distance pushed by a second driving block 21 is shortened, the circumferential side surface of the second screw rod 14 is fixedly connected with a second transmission gear 15, the circumferential side surface of the second transmission gear 15 is in transmission connection with a second deceleration gear 16, the axis of the second deceleration gear 16 is fixedly connected with a third screw rod 17, the second screw rod 14 is decelerated through the second deceleration gear 16 so that the number of the rotating circumferences of the third screw rod 17 is reduced, the distance pushed by a third driving block 22 is further shortened so as to adapt to the smaller rotating amplitudes of a first rotating plate 3 and a second rotating plate 5, the circumferential side surface of the first screw rod 11 is in threaded connection with a first driving block 20, the circumferential side surface of the second screw rod 14 is in threaded connection with a second driving block 21, the circumferential side surface of the third screw rod 17 is in threaded connection with a third driving block 22, and three; the side wall of the first driving block 20 is fixedly connected with a first connecting rod 23, the side wall of the second driving block 21 is fixedly connected with a second connecting rod 24, the side wall of the third driving block 22 is fixedly connected with a third connecting rod 25, the peripheral sides of the three slide bars 19 are respectively and slidably connected with a slide block 42, the slide bars 19 and the slide blocks 42 are used for limiting the movement stroke of the first driving block 20, the second driving block 21 and the third driving block 22, and one end of each of the first connecting rod 23, the second connecting rod 24 and the third connecting rod 25 is respectively and fixedly connected with the side wall of the slide block 42; the peripheral side of the first connecting rod 23 is rotatably connected with a first curved rod 26, the peripheral side of the second connecting rod 24 is rotatably connected with a second curved rod 27, the peripheral side of the third connecting rod 25 is rotatably connected with a third curved rod 28, the top ends of the first curved rod 26, the second curved rod 27 and the third curved rod 28 are fixedly connected with a rotating rod 29, and one end of the rotating rod 29 is fixedly connected with a cam 31.

As shown in fig. 6-7, the backs of the first rotating plate 3, the second rotating plate 5 and the third rotating plate 7 are fixedly connected with two fixing blocks 30, the backs of the first side wing plate 4, the second side wing plate 6 and the third side wing plate 8 are fixedly connected with two connecting lugs 40, the backs of the first rotating plate 3, the second rotating plate 5 and the third rotating plate 7 are fixedly connected with a ZWMD038038-16 type driving motor 33, the output end of the controller 41 is electrically connected with the input ends of the three driving motors 33 through electric wires, and the backs of the first rotating plate 3, the second rotating plate 5 and the third rotating plate 7 are fixedly connected with an R13-507 type trigger switch 32; one end of an output shaft of the driving motor 33 is fixedly connected with a second connecting rod 24, the back surfaces of the first rotating plate 3, the second rotating plate 5 and the third rotating plate 7 are fixedly connected with two limiting blocks 38, the inner surfaces of the limiting blocks 38 are connected with square pipes 37 in a sliding mode, and side-shifting bent rods 39 are rotatably connected between opposite side walls of the two connecting lugs 40 through rotating shafts; the internal surface of the opposite end of the two square pipes 37 is connected with a double-thread screw 35 in a threaded manner, the peripheral side of the driving gear 34 is connected with a rotary gear 36 in a transmission manner, the axis of the rotary gear 36 is fixedly connected with the double-thread screw 35, one end of a lateral moving crank 39 is rotatably connected with the square pipes 37 through a rotating shaft, the peripheral side of the two ends of the double-thread screw 35 are opposite in thread direction, and the double-thread screw 35 can push the two square pipes 37 to be close to or away from each other.

As shown in fig. 2, the side wall of the first side wing plate 4 close to the second side wing plate 6 is a chamfered surface, the side wall of the third side wing plate 8 close to the second side wing plate 6 is a chamfered surface, and both the top surface and the bottom surface of the second side wing plate 6 are chamfered surfaces; the chamfered surfaces formed on the first side wing plate 4, the second side wing plate 6 and the third side wing plate 8 can avoid mutual extrusion when the side wing plates are gathered.

In summary, the cambered surface formed by the lifting of the inclination angle adjusting device is avoided from being too large and obtrusive, the cambered surface can be attached to the back of a patient, the comfort level is improved, the lifting height of the bed head can be improved under the combined action of the rotating plates, the side wing plates on the two sides are close to each other, the patient can be prevented from inclining to the bedside, and the stability of the patient when sitting up is improved.

The specific application of this embodiment is: the crank handle 10 at the tail of the sickbed 1 is manually rotated, the crank handle 10 drives a first screw rod 11 to rotate, the first screw rod 11 drives a first transmission gear 12 to rotate, the first transmission gear 12 drives a first reduction gear 13 to rotate through teeth, the first reduction gear 13 drives a second screw rod 14 to rotate, the second screw rod 14 drives a second transmission gear 15 to rotate, the second transmission gear 15 drives a second reduction gear 16 to rotate through the teeth, the second reduction gear 16 drives a third screw rod 17 to rotate, the first screw rod 11 drives a first driving block 20 to move towards the direction of the bed head, the second screw rod 14 drives a second driving block 21 to move towards the direction of the bed head, the third screw rod 17 drives a third driving block 22 to move towards the direction of the bed head, the first driving block 20 drives a first crank rod 26 to move towards the direction of the bed head through a first connecting rod 23, and the first crank rod 26 and the first connecting rod 23 rotate relatively, the second driving block 21 pushes the second curved bar 27 to move towards the direction of the head of the bed through the second connecting rod 24, the second curved bar 27 and the second connecting rod 24 rotate relatively, the third driving block 22 pushes the third curved bar 28 to move towards the direction of the head of the bed through the third connecting rod 25, the third curved bar 28 and the third connecting rod 25 rotate relatively, the three sliders 42 and the sliding rod 19 slide relatively, the third curved bar 28, the second curved bar 27 and the first curved bar 26 respectively push the first rotating plate 3, the second rotating plate 5 and the third rotating plate 7 to rotate upwards through the rotating rod 29, the rotating rod 29 and the fixed block 30 rotate relatively, the rotating rod 29 drives the cam 31 to rotate, the protruding side of the cam 31 presses the trigger switch 32, the trigger switch 32 sends a signal to the controller 41, the controller 41 respectively controls the three driving motors 33 to start, the output shafts of the driving motors 33 rotate to drive the driving gears 34 to rotate, the driving gear 34 drives the rotating gear 36 to rotate, the rotating gear 36 drives the double-thread screw rod 35 to rotate, the double-thread screw rod 35 drives the two square pipes 37 to be away from each other through threads at two ends in different directions, the square pipes 37 and the limiting block 38 slide relatively, one end of each square pipe 37 pushes the side-shifting curved rod 39 through a rotating shaft, one end of each side-shifting curved rod 39 pushes the connecting lug 40 through the rotating shaft, and the three connecting lugs 40 respectively push the corresponding first side wing plate 4, the corresponding second side wing plate 6 and the corresponding third side wing plate 8 to rotate, so that the lifting of the bed head is completed as shown in fig.; when the inclination angle adjusting device needs to be leveled in the year, the crank 10, the first rotating plate 3, the second rotating plate 5 and the third rotating plate 7 are rotated reversely to return to the original positions, the protruding side of the cam 31 is separated from the trigger switch 32, the trigger switch 32 transmits signals to the controller 41 again, and the controller 41 controls the output shafts of the three driving motors 33 to rotate reversely, so that the first side wing plate 4, the second side wing plate 6 and the third side wing plate 8 rotate reversely to return to the original positions, as shown in fig. 2.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a column type sick bed's inclination regulator, includes sick bed (1), sick bed (1) inside fixedly connected with bed board (2), its characterized in that: the bed board (2) is fixedly connected with an inclination angle adjusting device close to the side wall of the bed head of the sickbed (1), the bottom of the bed tail of the sickbed (1) is fixedly connected with a driving device, and the side wall of the bed head of the sickbed (1) is fixedly connected with a controller (41);

inclination adjusting device includes first rotor plate (3), bed board (2) are close to sick bed (1) head of a bed lateral wall and rotate through the hinge and are connected with first rotor plate (3), bed board (2) lateral wall is kept away from in first rotor plate (3) rotates through the hinge and is connected with second rotor plate (5), first rotor plate (3) lateral wall is kept away from in second rotor plate (5) and rotates through the hinge and be connected with third rotor plate (7), first rotor plate (3) both sides all rotate through the hinge and are connected with first side wing board (4), second rotor plate (5) both sides all rotate through the hinge and are connected with second side wing board (6), third rotor plate (7) both sides all rotate through the hinge and are connected with third side wing board (8).

2. A column-type hospital bed recliner as claimed in claim 1, wherein said driving means comprises a first fixing plate (9) fixed to the bottom of the head and the bottom of the tail of the hospital bed (1), a first screw (11) is rotatably connected between two opposite side walls of said first fixing plate (9) through a bearing, one end of said first screw (11) penetrates through the first fixing plate (9) and is fixedly connected with a crank (10).

3. The tilt angle adjuster of a strut-type hospital bed according to claim 2, wherein a first transmission gear (12) is fixedly connected to the peripheral side of the first screw rod (11), a second screw rod (14) and a third screw rod (17) are respectively and rotatably connected between the two first fixing plates (9) through bearings, a first reduction gear (13) is connected to the peripheral side of the first transmission gear (12) in a transmission manner, the axis of the first reduction gear (13) is fixedly connected to the second screw rod (14), and a second fixing plate (18) is fixedly connected to the bottom of the head and the bottom of the tail of the hospital bed (1).

4. A column type sickbed's recliner as claimed in claim 3, wherein the second lead screw (14) is fixedly connected with a second transmission gear (15) on the peripheral side, the second transmission gear (15) is fixedly connected with a second reduction gear (16) on the peripheral side, the second reduction gear (16) is fixedly connected with a third lead screw (17) at the axis, the first lead screw (11) is connected with a first driving block (20) on the peripheral side by screw thread, the second lead screw (14) is connected with a second driving block (21) on the peripheral side by screw thread, the third lead screw (17) is connected with a third driving block (22) on the peripheral side by screw thread, and the two second fixing plates (18) are respectively and fixedly connected with three sliding rods (19) in front of the opposite side wall.

5. A column type sickbed angle adjuster according to claim 4, characterized in that the first connecting rod (23) is fixedly connected to the side wall of the first driving block (20), the second connecting rod (24) is fixedly connected to the side wall of the second driving block (21), the third connecting rod (25) is fixedly connected to the side wall of the third driving block (22), the three sliding rods (19) are respectively and slidably connected with a sliding block (42) on the peripheral side, and one end of the first connecting rod (23), one end of the second connecting rod (24) and one end of the third connecting rod (25) are respectively and fixedly connected with the side wall of the sliding block (42).

6. A column-type hospital bed recliner as claimed in claim 5, wherein the first connecting rod (23) is connected with a first curved rod (26) in a circumferential direction, the second connecting rod (24) is connected with a second curved rod (27) in a circumferential direction, the third connecting rod (25) is connected with a third curved rod (28) in a circumferential direction, the top ends of the first curved rod (26), the second curved rod (27) and the third curved rod (28) are fixedly connected with a rotating rod (29), and one end of the rotating rod (29) is fixedly connected with a cam (31).

7. The reclining device for a strut-type hospital bed according to claim 1, wherein two fixing blocks (30) are fixedly connected to the backs of the first rotating plate (3), the second rotating plate (5) and the third rotating plate (7), two connecting lugs (40) are fixedly connected to the backs of the first side wing plate (4), the second side wing plate (6) and the third side wing plate (8), driving motors (33) are fixedly connected to the backs of the first rotating plate (3), the second rotating plate (5) and the third rotating plate (7), the output end of the controller (41) is electrically connected to the input ends of the three driving motors (33) through electric wires, and the triggering switches (32) are fixedly connected to the backs of the first rotating plate (3), the second rotating plate (5) and the third rotating plate (7).

8. The reclining device for a strut-type hospital bed as claimed in claim 7, wherein one end of the output shaft of the driving motor (33) is fixedly connected with the second connecting rod (24), the back surfaces of the first rotating plate (3), the second rotating plate (5) and the third rotating plate (7) are fixedly connected with two limiting blocks (38), the inner surface of each limiting block (38) is slidably connected with a square tube (37), and a lateral shift curved rod (39) is rotatably connected between the opposite side walls of the two connecting lugs (40) through a rotating shaft.

9. The reclining device of a strut-type hospital bed according to claim 8, wherein the two square tubes (37) have a double-threaded screw rod (35) in threaded connection with the inner surface of the opposite end, the driving gear (34) has a rotary gear (36) in transmission connection with the circumferential side, the rotary gear (36) is fixedly connected with the double-threaded screw rod (35) at the axis, one end of the lateral shift crank (39) is rotatably connected with the square tube (37) through a rotating shaft, and the thread directions of the circumferential sides of the two ends of the double-threaded screw rod (35) are opposite.

10. A column hospital bed recliner as claimed in claim 7, wherein the side wall of the first side wing (4) close to the second side wing (6) is chamfered, the side wall of the third side wing (8) close to the second side wing (6) is chamfered, and the top and bottom surfaces of the second side wing (6) are chamfered.