CN111481373A

CN111481373A - Nursing bed

Info

Publication number: CN111481373A
Application number: CN202010402942.8A
Authority: CN
Inventors: 于万胜; 陈宇; 龙观富; 刘进; 端帅亮; 夏振兴; 封锦华; 李舟健
Original assignee: Guangdong Bofang Zhongji Medical Technology Co ltd
Current assignee: Guangdong Bofang Zhongji Medical Technology Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-08-04

Abstract

The application provides a nursing bed, relates to medical appliances technical field. The nursing bed comprises a main bed frame and a back lifting mechanism, wherein the back lifting mechanism comprises a crank, a connecting rod, a rocker and a driving assembly. The crank, the connecting rod, the rocker and the main bed frame are sequentially hinged to form a four-bar mechanism, and the driving assembly is used for driving the four-bar mechanism to move. This nursing bed has adopted four connecting rods to play back of the body mechanism, plays the center of rotation constantly change of back of the body in-process connecting rod, and the simulation human body plays the back of the body naturally, and the back that has avoided when playing the back slides and extrudees, and the travelling comfort is better.

Description

Nursing bed

Technical Field

The application relates to the technical field of medical appliances, in particular to a nursing bed.

Background

The back lifting mechanism of the existing nursing bed adopts a rotating mode of a fixed hinge point, the back lifting mechanism and the rotating hinge point of the natural back lifting of a human body have deviation, the discomfort of back sliding and extrusion can be caused in the back lifting and falling processes, and the comfort level is lower in the using process.

Disclosure of Invention

An object of the embodiment of this application is to provide a nursing bed, it aims at improving among the relevant art back rise, can produce the problem that back slided, extrudeed in the whereabouts process.

The embodiment of the application provides a nursing bed, which comprises a main bed frame and a back lifting mechanism, wherein the back lifting mechanism comprises a crank, a connecting rod, a rocker and a driving assembly. The crank, the connecting rod, the rocker and the main bed frame are sequentially hinged to form a four-bar mechanism, and the driving assembly is used for driving the four-bar mechanism to move. This nursing bed has adopted four connecting rods to play back of the body mechanism, and wherein, the connecting rod is used for being connected with the backplate, plays the centre of rotation constantly change of back of the body in-process connecting rod, and the simulation human body plays the back of the body naturally, and the back when having avoided playing the back slides and extrudees, and the travelling comfort is better.

As an optional technical scheme of the embodiment of the application, the back lifting mechanism comprises two cranks, two connecting rods and two rocking rods. The two cranks are respectively connected to the left side and the right side of the main bed frame, and the cranks, the connecting rods and the rocking bars are in one-to-one correspondence. The two connecting rods are connected through a first connecting rod, and the two rockers are connected through a second connecting rod. The left side and the right side of the main body bedstead are respectively provided with the crank, the connecting rods and the rocking rods are in one-to-one correspondence, the backboard is jointly supported by the two connecting rods on the left side and the right side of the main body bedstead, and the stability is good. The first connecting rod is arranged to connect the two connecting rods, the second connecting rod is connected with the two rocking rods, the strength of the structure is enhanced, the two rocking rods and the two connecting rods can move synchronously, and stable back lifting is achieved.

As an alternative solution to the embodiment of the present application, the driving assembly includes a first electric push rod, a first crank arm, a first rotating shaft, and two first rotating arms. The first rotating shaft is rotatably connected to the main bed frame, and the first rotating arms correspond to the connecting rods one by one. One end of the first rotating arm is fixed on the first rotating shaft, and the other end of the first rotating arm is matched with the corresponding connecting rod in a sliding mode. One end of the first crank arm is fixed on the first rotating shaft, and the other end of the first crank arm is hinged to the first electric push rod. The first electric push rod drives the first crank arm to drive the first rotating shaft to rotate relative to the main body bedstead, and then the first rotating arm connected with the first rotating shaft is driven to rotate. When the first rotating arm rotates, the connecting rod is driven to act, and the back lifting is realized. The driving assembly is arranged to comprise the first crank arm, the first rotating shaft and the first rotating arm, so that the first electric push rod can be arranged under the main bed frame, and the required extension and shortening distance of the first electric push rod is reduced.

As an optional technical solution of the embodiment of the present application, one end of the first rotating arm away from the first rotating shaft is detachably connected to the connecting rod. The first rotating arm is detachably connected with the connecting rod, so that clamping injury can be avoided. For example, when the backboard is clamped to a user when the backboard is lowered, the first rotating arm continues to be lowered under the action of the first electric push rod, the first rotating arm is separated from the connecting rod, the connecting rod cannot be driven to be lowered continuously, and the user is prevented from being injured by clamping.

As an optional technical scheme of this application embodiment, the one end that first pivot was kept away from to first pivot is provided with first gyro wheel, is equipped with the spout that extends along its length direction on the connecting rod, first gyro wheel and spout cooperation. When the back of the body rises, the first electric push rod drives the first crank arm to rotate, the first crank arm drives the first rotating shaft to rotate, and then the first rotating arm is driven to rotate, so that the first roller slides in the sliding groove to jack the connecting rod. When the backboard is lowered, if the backboard clamps a user, the first roller can be separated from the chute, and the connecting rod is not driven to descend continuously, so that clamping injury is avoided.

As an optional technical scheme of the embodiment of the application, the nursing bed comprises a bed panel assembly, and the bed panel assembly comprises a back panel, a flexible hinge plate and a hip plate. The backboard is fixed on the connecting rod, and the hip board is fixed on the main body bedstead. The upper end of the flexible hinge plate can be connected to the back plate in a vertically sliding mode, and the lower end of the flexible hinge plate is hinged to the hip plate. The back plate of the bed panel component is connected with the connecting rod and is driven by the connecting rod to lift the back. In the back lifting process, the flexible hinge plate can be self-adaptively fitted to surround the buttocks of a human body. Meanwhile, the flexible hinge plate and the back plate can slide relatively to adapt to the extending action of the human body in the natural back lifting process, and the relative sliding between the human body back and the mattress is compensated.

As an optional technical scheme of the embodiment of the application, the bed panel assembly further comprises a thigh panel and a shank panel, the upper end of the thigh panel is hinged to the main bed frame, and the lower end of the thigh panel is hinged to the shank panel. The upper end of the thigh plate is hinged with the main body bedstead, and the lower end of the thigh plate is hinged with the shank plate, so that the angle among the thigh plate, the shank plate and the main body bedstead can be conveniently adjusted, and the requirements of different patients can be met.

As an optional technical scheme of the embodiment of the application, the nursing bed further comprises a leg lifting mechanism, the leg lifting mechanism is connected to the main bed frame, and the leg lifting mechanism is used for driving the thigh plate to lift relative to the main bed frame. Through setting up the leg lifting mechanism, be convenient for change the angle between big leg board and the main part bedstead.

As an optional technical solution of the embodiment of the present application, the leg lifting mechanism includes a second electric push rod, a second crank arm, a second rotating shaft, and two second rotating arms. The second rotating shaft is rotatably connected to the main bedstead. One end of the second rotating arm is fixed on the second rotating shaft, and the other end of the second rotating arm is provided with a second roller which is used for being abutted against the thigh plate. One end of the second crank arm is fixed on the second rotating shaft, and the other end of the second crank arm is hinged to the second electric push rod. The second electric push rod drives the second crank arm to drive the second rotating shaft to rotate relative to the main body bedstead, and then drives the second rotating arm connected with the second rotating shaft to rotate. When the second rotating arm rotates, the thigh plate is driven to act, and the leg is lifted. The leg lifting mechanism is arranged to comprise a second crank arm, a second rotating shaft and a second rotating arm, so that the second electric push rod can be arranged below the main body bedstead, and the required extension and shortening distance of the second electric push rod is reduced.

As an optional technical scheme of the embodiment of the application, the nursing bed further comprises a bottom moving assembly and a lifting mechanism, wherein the lifting mechanism is arranged between the bottom moving assembly and the main body bedstead and is used for realizing the lifting and the inclining of the main body bedstead. Through setting up the bottom and moving the subassembly, be convenient for remove the nursing bed, set up elevating system, the main part bedstead of being convenient for goes up and down and the slope.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a nursing bed (without a bed panel assembly) provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a connecting rod according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a rocker according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a driving assembly according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a nursing bed (including a bed panel assembly) provided in an embodiment of the present application;

fig. 6 is a schematic structural view of a deck assembly according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a back plate according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural view of a nursing bed in an uppermost position according to an embodiment of the present application from a first perspective;

FIG. 9 is a schematic view of the nursing bed in the lowest position according to the present application from a first perspective;

FIG. 10 is a schematic structural diagram of a Y-shaped structure provided in an embodiment of the present application;

FIG. 11 is a schematic structural view of a guardrail assembly provided by an embodiment of the present application;

fig. 12 is a schematic view of the connection of the bed end plate provided in the embodiment of the present application.

Icon: 10-a nursing bed; 100-a main body bed frame; 110-a fixed slot; 111-locking grooves; 200-back lifting mechanism; 210-a crank; 220-a connecting rod; 221-a chute; 222-a first connecting rod; 230-a rocker; 231-a second connecting rod; 240-a drive assembly; 241-a first rotating arm; 242 — a first shaft; 243-first crank arm; 244-a first roller; 300-a bed panel assembly; 310-a back plate; 311-an accommodating groove; 3111-elongate wells; 320-a flexible hinge plate; 321-end flap; 322-intermediate hinge plate; 330-hip plate; 340-thigh panels; 350-a lower leg plate; 400-leg lifting mechanism; 410-a second swivel arm; 411-a second roller; 420-a second rotating shaft; 500-a bottom moving assembly; 510-a support frame; 520-universal wheels; 600-a lifting mechanism; a 610-Y type structure; 611-a sliding bar; 612-support rods; 613-third connecting rod; 6131-push rod hinge; 614-fourth connecting rod; 620-I type structure; 630-a third electric putter; 640-a fourth electric putter; 700-a guardrail assembly; 710-a telescoping tube assembly; 711-a first tube; 712-a second tubular body; 720-connecting plate; 730-connecting the cross beam; 731-control switch; 740-a locking mechanism; 800-a bed tail plate; 810-a movable tongue; 820-locking buckle; 900-headboard.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

Referring to fig. 1, the present embodiment provides a nursing bed 10, the nursing bed 10 includes a main bed frame 100 and a back lifting mechanism 200, the back lifting mechanism 200 includes a crank 210, a connecting rod 220, a rocker 230 and a driving assembly 240. The crank 210, the link 220, the rocker 230 and the main frame 100 are hinged in sequence to form a four-bar linkage. In other words, in the present embodiment, one end of the crank 210 is rotatably connected to the main frame 100, and the other end of the crank 210 is rotatably connected to the connecting rod 220. One end of the rocker 230 is rotatably connected to the main frame 100, and the other end of the rocker 230 is rotatably connected to the link 220. The driving assembly 240 is used for driving the four-bar linkage to move.

This nursing bed 10 has adopted four connecting rods to play back mechanism, and wherein, connecting rod 220 is used for being connected with backplate 310, plays back the constantly change of centre of rotation of in-process connecting rod 220, and the simulation human body plays the back naturally, and the back that has avoided when playing the back slides and extrudees, and the travelling comfort is better.

Referring to fig. 1, with reference to fig. 2 and 3, in the present embodiment, the back lifting mechanism 200 includes two cranks 210, two connecting rods 220 and two rockers 230. Two cranks 210 are respectively connected to the left and right sides of the main frame 100, and the cranks 210, the connecting rods 220 and the rocking bars 230 correspond one to one. The two links 220 are connected by a first connecting rod 222, and the two rockers 230 are connected by a second connecting rod 231. The left and right sides of the main bed frame 100 are respectively provided with a crank 210, the cranks 210, the connecting rods 220 and the rockers 230 are in one-to-one correspondence, and the two connecting rods 220 support the back plate 310 on the left and right sides of the main bed frame 100 together, so that the stability is good. The first connecting rod 222 is arranged to connect the two connecting rods 220, and the second connecting rod 231 is arranged to connect the two rockers 230, so that the structural strength is enhanced, the two rockers 230 and the two connecting rods 220 can move synchronously, and the stable back lifting is realized.

In this embodiment, the back lifting mechanism 200 includes two cranks 210, two connecting rods 220 and two rocking bars 230, the two cranks 210 are respectively connected to the left and right sides of the main frame 100, and the cranks 210, the connecting rods 220 and the rocking bars 230 correspond to each other one by one. In an alternative embodiment, the back lifting mechanism 200 includes three cranks 210, three connecting rods 220, and three rocking bars 230, the three cranks 210 are respectively disposed at intervals in the width direction of the main frame 100, and the cranks 210, the connecting rods 220, and the rocking bars 230 correspond one to one. Alternatively, in other embodiments, the number of the cranks 210, the connecting rods 220 and the rockers 230 may be three or more.

Referring to fig. 2, referring to fig. 1, in the present embodiment, a sliding slot 221 is disposed on a side of the connecting rod 220 close to the driving assembly 240, and the sliding slot 221 is opened along a length direction of the connecting rod 220. The runner 221 is adapted to cooperate with the drive assembly 240. In the present embodiment, the connecting rod 220 has a U-shaped structure, and the opening thereof faces the driving assembly 240. The two connecting rods 220 are connected by two first connecting rods 222. In the present embodiment, the two first connecting rods 222 are parallel to each other. Referring to fig. 3, in the present embodiment, two rockers 230 are connected by three second connecting rods 231. The three second connection bars 231 are parallel to each other.

Referring to fig. 4, in the present embodiment, the driving assembly 240 includes a first electric pushing rod, a first crank arm 243, a first rotating shaft 242, and two first rotating arms 241. The first rotating shaft 242 is rotatably connected to the main frame 100, and the first rotating arms 241 correspond to the connecting rods 220 one by one. One end of the first rotating arm 241 is fixed to the first rotating shaft 242, and the other end is slidably coupled to the corresponding link 220. One end of the first crank arm 243 is fixed to the first rotating shaft 242, and the other end of the first crank arm 243 is hinged to the first electric push rod. The first electric pushing rod drives the first crank 243 to rotate the first rotating shaft 242 relative to the main bed frame 100, and further drives the first rotating arm 241 connected to the first rotating shaft 242 to rotate. When the first rotating arm 241 rotates, the connecting rod 220 is driven to move, so as to lift the back. The driving assembly 240 is provided to include the first crank arm 243, the first rotating shaft 242, and the first rotating arm 241 so that the first electric push bar can be disposed under the main body frame 100, and also the distance required for the first electric push bar to be lengthened and shortened is reduced.

Referring to fig. 4, in the present embodiment, the first rotating arm 241 and the first crank arm 243 are disposed at an included angle, the first rotating arm 241 is disposed obliquely upward, and the first crank arm 243 is disposed obliquely downward. Thus, when the first electric push rod is disposed under the main frame 100, the first crank arm 243 can be pushed approximately in the horizontal direction, and the back lift can be achieved. Referring to fig. 4, in the present embodiment, the length of the first crank arm 243 is smaller than the length of the first rotating arm 241. Therefore, the first electric push rod only needs to push the first crank arm 243 in a small range, so that the position of the first crank arm 241 can be greatly changed, and the quick back rising is realized.

In the present embodiment, the driving assembly 240 includes a first electric push rod, a first crank arm 243, a first rotating shaft 242, and two first rotating arms 241. In an alternative embodiment, the driving assembly 240 includes a first electric push rod having one end connected to the main body frame 100 and the other end connected to the connection rod 220. When the first electric push rod is contracted, the back plate 310 is lowered, and when the first electric push rod is extended, the back plate 310 is raised.

In this embodiment, an end of the first rotating arm 241 remote from the first rotating shaft 242 is detachably connected to the link 220. The first rotating arm 241 is detachably connected to the connecting rod 220, so that a clamping injury can be avoided. For example, when the back plate 310 is lowered, if the back plate 310 clamps the user, at this time, the first rotating arm 241 continues to be lowered under the action of the first electric pushing rod, the first rotating arm 241 is separated from the connecting rod 220, the connecting rod 220 cannot be continuously driven to be lowered, and the user is prevented from being injured by clamping. Referring to fig. 4, a first roller 244 is disposed at an end of the first rotating arm 241 away from the first rotating shaft 242, and the first roller 244 is engaged with the sliding slot 221 formed on the connecting rod 220. When the user backs up, the first electric push rod drives the first crank arm 243 to rotate, the first crank arm 243 drives the first rotating shaft 242 to rotate, and then the first rotating arm 241 is driven to rotate, so that the first roller 244 slides in the sliding groove 221 to lift up the connecting rod 220. When the back plate 310 is lowered, if the back plate 310 is clamped to the user, the first roller 244 can be separated from the sliding slot 221, and the connecting rod 220 is no longer driven to be lowered, thereby avoiding clamping injury.

In the present embodiment, the first rotating arm 241 is detachably and slidably connected to the connecting rod 220 by providing the first roller 244 at an end of the first rotating arm 241 remote from the first rotating shaft 242. In an alternative embodiment, a sliding block and a sliding rail are disposed on the connecting rod 220, wherein a clamping groove is disposed on a side of the sliding block close to the driving assembly 240, and a clamping protrusion is also disposed on an end of the first rotating arm 241 away from the first rotating shaft 242, and the clamping protrusion is clamped with the clamping groove. When the back is lifted, the first electric push rod drives the first crank arm 243 to rotate, the first crank arm 243 drives the first rotating shaft 242 to rotate, and then the first crank arm 243 is driven to rotate, so that the sliding block slides on the sliding rail to lift the connecting rod 220. When the back plate 310 is lowered, if the back plate 310 clamps the user, the clamping protrusion is separated from the clamping groove, the connecting rod 220 is no longer continuously driven to descend, and clamping injury is avoided.

Referring to fig. 5 in conjunction with fig. 6, in the present embodiment, the nursing bed 10 includes a deck assembly 300, and the deck assembly 300 includes a back plate 310, a flexible hinge plate 320 and a hip plate 330. The back plate 310 is fixed to the connecting rods 220, and the hip plate 330 is fixed to the main frame 100. The upper end of the flexible hinge plate 320 is slidably connected to the back plate 310 up and down, and the lower end of the flexible hinge plate 320 is hinged to the hip plate 330. The above-mentioned "vertical sliding" means that the flexible hinge plate 320 can slide along the longitudinal direction of the back plate 310. The back plate 310 of the deck plate assembly 300 is connected with the connecting rod 220 and is driven by the connecting rod 220 to rise. In the back lifting process, the flexible hinge plate 320 can be self-adaptively fitted to surround the outside of the buttocks of a human body. Meanwhile, the flexible hinge plate 320 and the back plate 310 can slide relatively to adapt to the extending action of the human body in the process of naturally lifting the back, and the relative sliding between the human body back and the mattress is compensated.

Referring to fig. 6, in the present embodiment, the flexible hinge plate 320 includes an end hinge plate 321 and a middle hinge plate 322, and the end hinge plate 321 is hinged to the middle hinge plate 322. The end hinge panels 321 are slidably connected to the backboard 310 and a middle hinge panel 322 adjacent to the hip panel 330 is hingedly connected to the hip panel 330. Referring to fig. 7, in the present embodiment, a receiving groove 311 is formed on the back plate 310, and the flexible hinge plate 320 is partially received in the receiving groove 311. The bottom wall of the accommodating groove 311 is provided with a long hole 3111, the pin shaft penetrates through the long hole 3111, and the end hinge plate 321 is limited in the accommodating groove 311. The pin can slide in the elongated hole 3111, and the flexible hinge plate 320 can slide in the accommodating groove 311. In the present embodiment, the upper end of the flexible hinge plate 320 is connected to the back plate 310 in a vertically slidable manner, and it can also be interpreted that the flexible hinge plate 320 is slidable relative to the back plate 310 along the length direction of the elongated hole 3111. In an alternative embodiment, a sliding groove is formed on a side wall of the receiving groove 311, and the flexible hinge plate 320 is slidably engaged with the sliding groove.

Referring to fig. 6 again, in the present embodiment, the deck assembly 300 further includes a thigh plate 340 and a shank plate 350, wherein the upper end of the thigh plate 340 is hinged to the main frame 100, and the lower end of the thigh plate 340 is hinged to the shank plate 350. The upper end of the thigh plate 340 is hinged to the main bedstead 100, and the lower end of the thigh plate 340 is hinged to the shank plate 350, so that the angles between the thigh plate 340, the shank plate 350 and the main bedstead 100 can be adjusted conveniently, and the requirements of different patients can be met.

Referring to fig. 1 again, in the present embodiment, the nursing bed 10 further includes a leg raising mechanism 400, the leg raising mechanism 400 is connected to the main bed frame 100, and the leg raising mechanism 400 is used for driving the thigh plate 340 to raise relative to the main bed frame 100. By providing the leg raising mechanism 400, it is convenient to change the angle between the thigh plate 340 and the main bed frame 100. The leg lifting mechanism 400 includes a second electric push rod, a second crank arm, a second rotating shaft 420, and two second rotating arms 410. The second shaft 420 is rotatably coupled to the main frame 100. One end of the second rotating arm 410 is fixed to the second rotating shaft 420, and the other end is provided with a second roller 411 for abutting against the thigh plate 340. One end of the second crank arm is fixed to the second rotating shaft 420, and the other end of the second crank arm is hinged to the second electric push rod. The second electrical push rod drives the second crank arm to drive the second rotating shaft 420 to rotate relative to the main bed frame 100, and further drives the second rotating arm 410 connected with the second rotating shaft 420 to rotate. When the second rotating arm 410 rotates, the thigh plate 340 is driven to move, so as to lift the legs. The leg lifting mechanism 400 is configured to include a second crank arm, a second rotating shaft 420, and a second rotating arm 410, so that a second electric push rod can be disposed under the main body frame 100, and the required extension and shortening distance of the second electric push rod is also reduced.

In this embodiment, the leg raising mechanism 400 includes a second electric push rod, a second crank arm, a second rotating shaft 420 and two second rotating arms 410, wherein the second rotating shaft 420 is rotatably connected to the main frame 100. In an alternative embodiment, the leg-raising mechanism 400 includes a second electric push rod, a second rotating shaft 420 and two second rotating arms 410, the two second rotating arms 410 are rotatably connected to the left and right sides of the main bedstead 100, the second rotating shaft 420 is connected to the two second rotating arms 410, and the second electric push rod raises the legs by pushing the second rotating shaft 420 to rotate the two second rotating arms 410.

Referring to fig. 1, with reference to fig. 8 and 9, in the present embodiment, the nursing bed 10 further includes a bottom moving assembly 500 and a lifting mechanism 600, wherein the lifting mechanism 600 is disposed between the bottom moving assembly 500 and the main bed frame 100 for lifting and tilting the main bed frame 100. The movement of the nursing bed 10 is facilitated by the provision of the bottom moving assembly 500, and the elevation mechanism 600 is provided to facilitate the elevation and the inclination of the main body frame 100.

The bottom moving assembly 500 includes a supporting frame 510 and four universal wheels 520, the supporting frame 510 encloses a square frame, and the four universal wheels 520 are respectively disposed at four nodes of the supporting frame 510. Referring to fig. 1 and fig. 8, the lifting mechanism 600 includes a Y-shaped structure 610, an I-shaped structure, a third electric push rod 630 and a fourth electric push rod 640. The third electric push rod 630 is connected to the Y-shaped structure 610 for driving the Y-shaped structure 610 to move. The fourth electric push rod 640 is connected to the I-shaped structure 620 for driving the I-shaped structure 620 to move. Referring to fig. 10, in the present embodiment, the Y-shaped structure 610 includes two sliding rods 611, two supporting rods 612, a third connecting rod 613 and a fourth connecting rod 614. The two sliding rods 611 are respectively disposed at the left and right sides of the main body frame 100, one end of the sliding rod 611 is hinged to the supporting frame 510, and the other end of the sliding rod 611 is slidably connected to the sliding groove of the main body frame 100 through a roller. The support rods 612 correspond to the slide rods 611 one to one. One end of the support rod 612 is hinged to the sliding rod 611 and the other end of the support rod 612 is hinged to the main frame 100. The two sliding rods 611 are connected through a third connecting rod 613, the third connecting rod 613 is provided with a push rod hinge 6131, and the third electric push rod 630 is hinged with the Y-shaped structure 610 through the push rod hinge 6131. The two support rods 612 are connected through a fourth connecting rod 614, so that the strength of the structure is enhanced, and the movement synchronization of the two support rods 612 is ensured. In this embodiment, the I-shaped structure 620 includes two sliding bars 611, and the two sliding bars 611 are connected by a fifth connecting bar. One end of the sliding bar 611 is hinged to the supporting frame 510, and the other end of the sliding bar 611 is slidably connected to the sliding groove of the main frame 100 via rollers. The fourth electric push rod 640 is hinged with the fifth connecting rod.

When the third electric push rod 630 is extended and the fourth electric push rod 640 is shortened, the nursing bed 10 is tilted forward. When the third electric push rod 630 is shortened and the fourth electric push rod 640 is extended, the nursing bed 10 is tilted backwards. When the third electric push rod 630 and the fourth electric push rod 640 are simultaneously extended, the nursing bed 10 is lifted. When the third electric putter 630 and the fourth electric putter 640 are shortened simultaneously, the nursing bed 10 is lowered. The lifting mechanism 600 can realize the vertical lifting of the whole bed, and avoids the problem of back and forth movement in the lifting process of the existing nursing bed; meanwhile, the lower sleeping position can be realized, and the falling and falling injury risk of the old people in the sleeping process is greatly reduced.

Referring to fig. 5, in the present embodiment, the nursing bed 10 further includes a guardrail assembly 700, a headboard 900 and a footboard 800. The barrier assemblies 700 are attached to both sides of the main body frame 100, the headboard 900 is detachably attached to the head of the nursing bed 10, and the footboard 800 is detachably attached to the foot of the footboard 800.

Referring to fig. 11, in the present embodiment, the guardrail assembly 700 includes a telescopic tube assembly 710, a connecting plate 720, a connecting beam 730 and a locking mechanism 740. The telescopic tube assembly 710 includes two first tubes 711 and two second tubes 712, the second tubes 712 are sleeved on the first tubes 711, and the first tubes 711 can be extended and retracted in the second tubes 712. The two first pipes 711 are connected to each other by a connecting beam 730, and the two second pipes 712 are connected to each other by a connecting plate 720. The locking mechanism 740 is provided between the first pipe 711 and the second pipe 712, and locks the relative positions of the first pipe 711 and the second pipe 712. The connecting beam 730 is provided with a control switch 731, the control switch 731 is connected with the locking mechanism 740, and the locking state of the locking mechanism 740 can be switched by toggling the control switch 731. When the control switch 731 is turned off, the locking mechanism 740 locks the relative positions of the first pipe body 711 and the second pipe body 712. When the control switch 731 is turned on, the lock mechanism 740 is unlocked. The guardrail assembly 700 adjacent the head of the bed provides support when a user gets off the bed when the guardrail assembly 700 adjacent the foot is retracted and the guardrail assembly 700 adjacent the head of the bed is raised.

In this embodiment, the headboard 900 is identical in structure to the footboard 800. Referring to fig. 12, in the present embodiment, a fixing groove 110 is formed on a main body frame 100, and a movable tongue 810 is disposed on a bed end plate 800. The movable tongue 810 can be inserted into the fixing groove 110. The outer wall of the fixing groove 110 is further provided with a locking groove 111, the movable tongue 810 is hinged with a locking buckle 820, and the locking buckle 820 can be buckled into the locking groove 111 to limit the position between the footboard 800 and the main bedstead 100. When the bed tail plate 800 needs to be disassembled, the locking buckle 820 is manually opened firstly, and then the bed tail plate 800 is directly lifted upwards, so that the disassembly can be completed. When the bed tail plate 800 is installed, the movable tongue 810 is directly aligned with the fixing groove 110 and falls down, and then the locking buckle 820 is buckled into the locking groove 111.

The present embodiment provides a nursing bed 10, the nursing bed 10 includes a main bed frame 100 and a back lifting mechanism 200, the back lifting mechanism 200 includes a crank 210, a connecting rod 220, a rocker 230 and a driving assembly 240. The crank 210, the link 220, the rocker 230 and the main frame 100 are hinged in sequence to form a four-bar linkage. This nursing bed 10 has adopted four connecting rods to play back mechanism, and wherein, connecting rod 220 is used for being connected with backplate 310, plays back the constantly change of centre of rotation of in-process connecting rod 220, and the simulation human body plays the back naturally, and the back that has avoided when playing the back slides and extrudees, and the travelling comfort is better.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A care bed, comprising:

a main body bedstead;

the back lifting mechanism comprises a crank, a connecting rod, a rocker and a driving assembly, wherein the crank, the connecting rod, the rocker and the main bed frame are sequentially hinged to form a four-bar mechanism, and the driving assembly is used for driving the four-bar mechanism to move.

2. The nursing bed as claimed in claim 1, wherein the back lifting mechanism comprises two cranks, two connecting rods and two rocking bars, the two cranks are respectively connected to the left and right sides of the main bed frame, the cranks, the connecting rods and the rocking bars are in one-to-one correspondence, the two connecting rods are connected by a first connecting rod, and the two rocking bars are connected by a second connecting rod.

3. The nursing bed of claim 2, wherein the driving assembly comprises a first electric push rod, a first crank arm, a first rotating shaft and two first rotating arms, the first rotating shaft is rotatably connected to the main bed frame, the first rotating arms are in one-to-one correspondence with the connecting rods, one end of each first rotating arm is fixed to the first rotating shaft, the other end of each first rotating arm is slidably matched with the corresponding connecting rod, one end of each first crank arm is fixed to the first rotating shaft, and the other end of each first crank arm is hinged to the first electric push rod.

4. The care bed of claim 3, wherein an end of the first pivot arm remote from the first pivot shaft is detachably connected to the link.

5. The nursing bed of claim 4, wherein the end of the first rotating arm away from the first rotating shaft is provided with a first roller, the connecting rod is provided with a sliding groove extending along the length direction of the connecting rod, and the first roller is matched with the sliding groove.

6. The nursing bed as claimed in claim 1, wherein the nursing bed comprises a bed panel assembly including a back panel fixed to the connecting rod, a flexible hinge plate fixed to the main bed frame, and a hip plate having an upper end slidably connected to the back panel and a lower end hinged to the hip plate.

7. The nursing bed of claim 6, wherein the deck assembly further comprises a thigh plate and a shank plate, the upper end of the thigh plate being hinged to the main frame, and the lower end of the thigh plate being hinged to the shank plate.

8. The nursing bed of claim 7 further comprising a leg raising mechanism coupled to the main frame for driving the thigh panel to raise relative to the main frame.

9. The nursing bed of claim 8, wherein the leg-lifting mechanism comprises a second electric push rod, a second crank arm, a second rotating shaft and two second rotating arms, the second rotating shaft is rotatably connected to the main bed frame, one end of the second rotating arm is fixed to the second rotating shaft, the other end of the second rotating arm is provided with a second roller for abutting against the thigh plate, one end of the second crank arm is fixed to the rotating shaft, and the other end of the second crank arm is hinged to the second electric push rod.

10. The care bed of claim 1, further comprising a bottom moving assembly and a lifting mechanism disposed between the bottom moving assembly and the main body frame.