CN2287472Y

CN2287472Y - Automatic hospital bed

Info

Publication number: CN2287472Y
Application number: CN 97201218
Authority: CN
Inventors: 韩瑞泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-02-05
Filing date: 1997-02-05
Publication date: 1998-08-12
Anticipated expiration: 2007-02-05

Abstract

The utility model relates to an automatic hospital bed, having a back raising function, a leg raising function, a turnover function, a height adjustment function for a bed table, etc. The structure of the automatic hospital bed is divided into an upper layer, a middle layer and a lower layer which comprise a four sliding block linkages which is driven by a motor and a non-segment inner screw and operated the same control panel through a control box, an automatic charge device which can also store electricity in power failure, a pair of liftable guard rails, a dining plate supported by the upper edges of the guard rails across, and a full braking bed wheel, wherein, the sliding block linkages comprise a back raising mechanism, a leg raising mechanism, a turnover mechanism and a lifting mechanism. The utility model is suitable for family care for long-term bedridden patients. Expenses for employing a special nursing person can be saved.

Description

Hospital bed

A kind of hospital bed belongs to the medical nursing weapon exercises.

Existing sick bed can be divided three classes, fixing, hand adjustment and electrodynamic type sick bed, and fixedly sick bed is the bed platform at a non-adjustable height and inclination angle, can only transfer a guardrails of both sides, simple in structure, body is little, and is light, conveniently moving; The hand adjustment sick bed can manually be adjusted head, foot inclination angle, and what also have can leave ground level under order, and fixed self-locking screw rod of the common section of having or not and segmentation be section type structure fixedly; Electric hospital bed with motor driving inner screw and ram pot, to lift the back of the body, act lower limb and a platform with row and just adjust, volume is big, heavy, easy to adjust, only uses at large hospital.These three kinds of sick beds to long-term bed particularly the paralytic take food, change one's clothes, clean and change the sheet etc. and all need employ the nursing staff to help, expensive price, family members are gone bankrupt or broke, need provide a kind of hospital bed for this reason, be in order to families of patients and nurse and sanatorium rehabilitation.

The purpose of this utility model provides the hospital bed that a kind of convenience is adjusted voluntarily, and helping patient to lift the back of the body, lift lower limb, to stand up and a bed platform is just adjusted, but family members' safety nursing is saved the spending of employing the nursing staff, shortening nursing staff's education and training.

The purpose of this utility model can realize by following measure, and a superstructure is on the upper strata of hospital bed, by bed board with stand up the height of a house and form, bed board is in the superiors of superstructure, parallel with bed surface, left and right sides symmetry, about each four blocks of plate, between the plate of homonymy with pivotally connected; Stand up height of a house left and right sides lateral symmetry under bed board and be arranged in parallel, the nearly bedside of two symmetrical members is a vertical pole along bedside, the two vertical pole stage casings framework that extended internally, and two frameworks are with pivotally connected; One middle level structure is in the middle level of bed, under standing up the height of a house on the upper strata, comprise a bedstead, main frame for sick bed, head of a bed beam, the left beam of bed, tailstock beam and right beam four side bars of bed are arranged, first, second, third and fourth mid-crossbeam places a side girder and longitudinal tubule (L tubule) between second and third crossbeam, and vertical symmetry is located at four lifting poles and several beads of setting up of being located at the member upper and lower respectively of left beam of bed and the right beam of bed below respectively; At one stroke carry on the back mechanism below the leading portion of bedstead, bed board leading portion that can the lifting superstructure; The bed board back segment that leg mechanism can the lifting superstructure below the bedstead back segment at one stroke; Stand up structure below the stage casing of bedstead, stand up frame, be convenient to the bed board left and right sides and turn up with lifting; Understructure is at the bottom of hospital bed, under the structure of middle level, comprise that the bottom frame is the bottom framework of hospital bed, right beam four side bars in end front-axle beam, the end back rest, Di Zuoliang and the end are arranged, a cross member, a bottom girder and several are located at the bead of setting up of member top and below respectively; One lifting mechanism is a quadric chain one of in the bedstead, is connected with the lifting pole of middle level structure with pivot, with lifting middle level structure.The purpose of this utility model can realize that also lifting back of the body frame is the head of a bed beam of the head of a bed and the hurdle frame between first crossbeam by following measure, and an end cross bar is extended with two of two beads and first crossbeam and sets up bead with pivotally connected; Act back of the body frame stage casing is extended with downwards carries on the back at one stroke pole; Lifting back of the body driver element is the combination of a CD-ROM drive motor and a stepless inner screw, and the bead of setting up that an end extends with the side girder bottom surface of pivot and bedstead is connected, and the other end is connected stepless inner screw end with pivot with act back of the body pole tail end.The act leg mechanism comprises that lower limb fork bar, one action lower limb frame, two are lifted leg connecting rods and one action lower limb driver element at one stroke, lifting lower limb fork bar is a round bar, interlude has the act lower limb fork bar A bar of vertical act lower limb fork bar main body round bar pole face, one symmetry is respectively arranged in A bar both sides, vertically lift lower limb fork bar main body round bar pole face, and lift lower limb fork bar B bar with A bar " L " shape at angle; Act lower limb fork bar two ends are passed two symmetries of bedstead the 3rd crossbeam below respectively and are set up bead; At one stroke lower limb is set up in the hurdle frame on third and fourth crossbeam of bedstead, is become by three cross bars and two vertical pole cross coupled; Two act lower limb fork bar B bar ends are that pivot is connected with act lower limb frame to lift lower limb frame middle transverse rod; The lower limb driver element is the combination of a motor and a stepless inner screw at one stroke, and the bead of setting up that the one end extends with the tailstock soffit of pivot and bedstead is connected, and the other end is connected stepless inner screw end with pivot with act lower limb fork bar A bar tail end.Standing up divergent bar in the turning over mechanism is that a round bar is loaded in the middle longitudinal tubule (L tubule) of bedstead, and longitudinal tubule (L tubule) two ends second and third crossbeam of bedstead in being piercing in, to establish to stand up divergent bar be the center in standing up a end that divergent bar passes second crossbeam, be parallel to second crossbeam, and perpendicular to standing up divergent bar A bar, and be extended with one and vertically stand up the divergent bar B bar of standing up of divergent bar body round bar and the 3rd crossbeam in standing up a end that divergent bar passes the 3rd crossbeam; Stand up the combination that driver element is a motor and a stepless inner screw, the bead of setting up that an end that stands up driver element extends with the left soffit of bed of pivot and bedstead is connected, the other end with pivot with stepless inner screw end with stand up divergent bar B bar tail end and be connected.Lifting mechanism comprises two liftings fork bar, lifting connecting rod and a lifting driver element, wherein the stage casing of lifting fork bar main body round bar is provided with a pair of perpendicular to main body round bar pole face, and the lifting fork bar A bar of interval one distance, respectively there is symmetrical, vertical lifting fork bar main body round bar pole face these A bar both sides, and with this lifting fork bar A bar lifting fork bar B bar at angle; And two liftings forks bar is setting up on the bead on parallel cross member that places a underframe respectively of pivot and the end front-axle beam with its main body round bar, and the B bar then is connected with lifting pole with pivot respectively; The lifting connecting rod is " worker " word bar, and two ends are run through with pivot respectively, and the end of the two pairs of liftings of horizontal connection fork bar A bar, and is provided with one in bottom surface, lifting connecting rod stage casing and sets up bead; The lifting driver element is a CD-ROM drive motor and stepless inner screw combination, the one end is connected with the bead of setting up that pivot and cross member and bottom girder bottom surface extends, and the other end is connected stepless inner screw end with pivot with the bead of setting up of bottom surface, lifting connecting rod stage casing.The left beam of bed of bedstead and the right beam of bed are respectively equipped with a guardrail, are one can fall to the guardrail of bed left side beam and the right beam upper limb of bed, and control key is located at the cross tube lower edge of guardrail.The head of a bed beam and the tailstock beam outside are respectively equipped with a backplate, and this two backplates lower edge is connected to respectively on the edge in the head of a bed beam and the tailstock beam outside.A meal plate upper limb is established two hooks and is cooperated with the backplate upper limb, and meal plate dual-side lower edge is provided with two shallow trenchs, and the time spent will be eaten grillage at left and right sides guardrail upper limb.Wheel is respectively moved in four jiaos of belows of bottom frame, moves wheel and is complete very property bed wheel.

The utility model has the advantages that this hospital bed can supply to help patient to lift the back of the body, lifts lower limb, stand up and the height adjustment, easy to operate, the use of can being in, without Special Training, common people can nurse, and reduce household's economy and pay wages.

The explanation of accompanying drawing drawing:

Fig. 1 is an axonometric chart of the present utility model

Fig. 2 is the three-dimensional exploded view of this utility model superstructure

Fig. 3 is the three-dimensional exploded view of this utility model middle level structure

Fig. 4 A is the three-dimensional combination figure that this utility model is lifted back of the body mechanism

Fig. 4 B is the action diagrammatic elevation view () that this utility model is lifted back of the body mechanism

Fig. 4 C is the action diagrammatic elevation view (two) that this utility model is lifted back of the body mechanism

Fig. 5 A is the three-dimensional combination figure that this utility model is lifted leg mechanism

Fig. 5 B is the action diagrammatic elevation view () that this utility model is lifted leg mechanism

Fig. 5 C is the action diagrammatic elevation view (two) that this utility model is lifted leg mechanism

Fig. 6 A is the three-dimensional combination figure of this utility model turning over mechanism

Fig. 6 B is the action diagrammatic elevation view () of this utility model turning over mechanism

Fig. 6 C is the action diagrammatic elevation view (two) of this utility model turning over mechanism

Fig. 7 is the three-dimensional exploded view of this utility model understructure

Fig. 8 A is the action diagrammatic elevation view () of this utility model lifting mechanism

Fig. 8 B is the action diagrammatic elevation view (two) of this utility model lifting mechanism

Now contrasting accompanying drawing is described in detail as follows this utility model:

This utility model is to lift the back of the body, lift lower limb, stand up and heighten low four function hospital beds a kind of comprising, paliform guardrail 5 is established in both sides at sick bed 1 (Fig. 1), guardrail 5 can be reduced to an edge, control key is located at guardrail 5 cross tube lower edges, two sides are all established backplate 6 before and after sick bed, hang a meal plate 3 on the preceding side guard plate 6, meal plate 3 upper limbs have two hooks, cooperate with backplate 6, meal plate 3 both sides lower edges have two shallow trenchs, and meal plate 3 crossbearers are in left and right sides guardrail 5 upper limbs, and sick bed 1 tetrapod is established full evil spirit's property bed wheel 7, there is a control chamber 2 sick bed 1 front bedstead below, and control chamber 2 has a control panel 4; Sick bed 1 is established a charging automatically, power transformation (AC110,220V--DC24V) device, the bearing structure of sick bed 1 has upper, middle and lower layer structure, superstructure comprises a bed board and stands up the bed mesa structure layer of the height of a house, the middle level structure comprises bedstead, lifts the layer that sets up of back of the body mechanism, act leg mechanism and turning over mechanism, and understructure comprises bottom frame and lifting mechanism; The bed board 8 and the parallel height of a house 9 that stands up in the superstructure (Fig. 2), the bed board 8 of the superiors is parallel with bed surface, each four blocks of plate of left-right symmetric, each plate of homonymy is with pivotally connected, stand up the height of a house 9 and be the left-right symmetric member, nearly bed edge side is along bed edge vertical pole, a framework is inwardly respectively extended in two vertical pole stage casings, and two frameworks are with pivotally connected, make it with the center line be axle can about turn up; The middle level structure is located under the superstructure, is bedstead 10 and the back of the body of the act on the bedstead 10, act lower limb and the turning over mechanism that sets up base station; Bedstead 10 has four side bars (head of a bed beam 17, the left beam 19 of bed, the right beam 20 of bed and tailstock beam 18), four mid-crossbeams (first crossbeam 11, second crossbeam 12, the 3rd crossbeam 13 and the 4th crossbeam 14), in a side girder 15 and of 13 on second crossbeam 12 and the 3rd crossbeam longitudinal tubule (L tubule) 16, all the lifting pole 33 of vertical symmetry, symmetry identical in four shapes of bed left side beam 19 and the right beam of bed 20 belows and vertical frame is established several at bedstead 10 each member upper and lower and is set up bead; Lift back of the body mechanism (Fig. 4) below the leading portion of bedstead 10,, comprise and lift back of the body frame 32 and lift back of the body driver element 31 with lifting bed board 8 leading portions; Lift back of the body frame 32 and be the hurdle frame of head of a

bed beam

17 and 11 on first crossbeam, the bottom cross bar is extended with two of two beads and these first crossbeam, 10 tops and sets up bead with pivotally connected, also vertically is extended with the act of " L " shape under one of the back of the body frame interlude railing and carries on the back pole 33 lifting; Act back of the body driver element 31 comprises motor and stepless inner screw, is provided with control chamber 2, the action of control stepless inner screw, and the one end is connected stepless inner screw end with pivot with act back braces 33 afterbodys; Lifting back of the body mechanism is that its action of a slide block mechanism is (Fig. 4 B, Fig. 4 C), and Fig. 4 B is static shape, and it is parallel with bedstead 10 to lift back of the body frame 32, when driving the stepless inner screw, also promote to lift back of the body pole, and frame 32 (Fig. 4 C) is carried on the back in the act that to lift with its bottom cross bar be pivot; Lift leg mechanism and be located at bedstead 10 back lower places,, comprise lifting lower limb fork bar 35, act lower limb frame 38, two act leg connecting rods 41 and lifting lower limb driving single 34 in order to lifting bed board 8 back segments; Lifting lower limb fork bar 35 is a round bar, and the stage casing has at one stroke lower limb fork bar 35 both sides respectively establish a symmetry, vertically lift lower limb fork bar 35 main body round bar pole faces, and with A bar 36 " L " shape B bar 37 at angle; The two ends of act lower limb fork bar 35 are passed the 3rd crossbeam 13 belows two symmetries respectively and are set up bead, are that pivot is a rotatable state to lift lower limb fork bar 35 main body round bars; Act lower limb frame 38 is the hurdle frame on the 3rd crossbeam 13, the 4th crossbeam 14, is intersected by three cross bars, two vertical poles and forms, and two act lower limbs fork bar B bars, 37 ends are that pivot is connected with act lower limb beam 38 to lift lower limb frame 38 middle transverse rods (A bar 39) promptly; Two lift leg connecting rod 41 is connected for identical quarter butt two act leg connecting rods 41 1 ends set up bead with pivot and the 4th crossbeam 14 tops two symmetries respectively, and the other end is that pivot is connected with act lower limb frame 38 to lift lower limb frame 38 terminal cross bars (B bar 40); Lift lower limb driver element one end and be connected with the bead of setting up of pivot with the 18 bottom surface extensions of tailstock beam, the other end is connected stepless inner screw end with pivot with act lower limb fork bar A bar 36 tail ends.Lifting leg mechanism (Fig. 5 B, Fig. 5 C) is a slide block quadric chain, and Fig. 5 B is a resting state, and is parallel with bedstead 10, and when driver element 34 retracted the stepless inner screw, 35 rotations of lower limb fork bar were lifted in pulling, is that pivot will be lifted and carry on the back frame 38 and lift with the middle-end cross bar.

Turning over mechanism (Fig. 6 A) is located at below, bedstead 10 stage casings, stands up the height of a house 9 with lifting, turns up bed board 8 left and right sides, comprises and stands up divergent bar 43 and stand up driver element 42; Standing up divergent bar 43 is a round bar, places the longitudinal tubule (L tubule) 16 of bedstead 10, and the main body round bar passes second crossbeam 12 and the 3rd crossbeam 13; In standing up the end that divergent bar 43 passes second crossbeam 12 is the center to stand up divergent bar 43 then, be parallel to second crossbeam 12, and, stand up a end that divergent bar 43 passes the 3rd crossbeam 13 and be extended with a divergent bar B bar 45 that stands up that vertically stands up divergent bar 43 body round bars and the 3rd crossbeam 13 perpendicular to standing up divergent bar A bar 44; Stand up the combination that driver element 42 is a CD-ROM drive motor and a stepless inner screw, CD-ROM drive motor is connected to control chamber 2 control stepless inner screw push pull maneuver, and an end that stands up driver element 42 is connected with a pivot and a bead of setting up that extend left beam 19 bottom surfaces; In addition end with pivot with the stepless inner screw terminal with stand up divergent bar B bar 45 tail ends and be connected; Turning over mechanism (Fig. 6 B, Fig. 6 C) is a simple space sliding-block linkage, and Fig. 6 B is a resting state, its A bar 44 and stand up divergent bar A bar 44 to stand up the height of a house 9 parallel with bedstead 10, when standing up driver element 42 release stepless inner screws, promote B bar 45, to rotate divergent bar 43 and to hold A bar 44 in addition, since A bar 44 rotation promote the height of a house 9 right half of be to turn up on axial with the centrally-pivoted axle, as Fig. 4 C shape, stand up the height of a house 9 rotations bed board 8 right one side of something are turned up, help patient to stand up, otherwise, bed board 8 left one side of something are turned up.

Understructure (Fig. 7) is at the bottom of sick bed 1, comprise the lifting mechanism on a bottom frame 22 and the bottom frame 22, bottom frame 22 is the framework of sick bed 1, by the bead of setting up of four side bars (end front-axle beam 24, the end back rest, Di Zuoliang, Di Youliang), mid-cross member 23, one a mid-bottom girder 25 and several members top and below; Lifting mechanism is on the bottom frame, be connected with lifting pole 30 with pivot, with lifting middle level structure, by two liftings fork bar 26, one lifting connecting rod 29 and lifting driving element 21 are formed, there are a pair of vertical lifting fork bar 26 main body round bar pole faces in the main body round bar stage casing of lifting fork bar 26, every the lifting fork bar A of distance bar 27, two pairs of A bar 27 both sides one symmetry is arranged respectively, vertical lifting fork bar main body round bar pole face, with A bar 27 B bar 28 at angle, with two main body round bars is that parallel respectively cross member 23 and the end front-axle beam 24 of placing of pivot sets up on the bead, and two pairs of B bars 28 are connected with lifting pole 30 with pivot respectively; Lifting connecting rod 29 is " worker " font, and the end that level connects two pairs of A bars 27 is run through with pivot respectively in two ends, makes lifting fork bar 26 become lifting connecting rod 29 interlock states, and bottom surface, lifting connecting rod 29 stage casing is provided with one and sets up bead; Lifting driver element 21 is made up of a motor and a stepless inner screw, motor is connected to control chamber 2 and makes the action of stepless inner screw, the bead of setting up that lifting driver element 21 1 ends extend with pivot and cross member 23 and bottom girder 25 bottom surfaces is connected, end couples together the terminal bead of setting up with bottom surface, lifting connecting rod 29 stage casing of stepless inner screw with pivot in addition, lifting mechanism (Fig. 8 A, Fig. 8 B) is a slide block double-four link mechanism, when lifting driver element 21 retracts the stepless inner screw, draw high lifting connecting rod 29, with rotation and lifting connecting rod 29 pivots A bar 27 even, 26 rotations of lifting fork bar are related to connect four lifting poles 30 through B bar 28 interlocks and B bar 28 pivots, reach the purpose of bedstead 10 declines of Fig. 8 C, otherwise when lifting driver element 21 was released the stepless inner screw, bedstead 10 can rise.

Claims

1, a kind of hospital bed is characterized in that: this sick bed comprises: a superstructure is on the upper strata of hospital bed, by bed board with stand up the height of a house and form, bed board is in the superiors of superstructure, be arranged in parallel with bed surface, left and right sides symmetry, about each four blocks of plate, between the plate of homonymy with pivotally connected; Stand up height of a house left and right sides lateral symmetry under bed board and be arranged in parallel, two symmetrical members are one along the bedside vertical pole, the two vertical pole stage casings framework that extended internally, and two frameworks are with pivotally connected; One middle level structure is in the middle level of bed, under standing up the height of a house on the upper strata, comprise a bedstead, main frame for sick bed, head of a bed beam, the left beam of bed, tailstock beam and right beam four side bars of bed are arranged, first, second, third and fourth mid-crossbeam places a side girder and longitudinal tubule (L tubule) between second and third crossbeam, and vertical symmetry is located at four lifting poles and several beads of setting up of being located at the member upper and lower respectively of left beam of bed and the right beam of bed below respectively; At one stroke carry on the back mechanism below the leading portion of bedstead; Leg mechanism is below the bedstead back segment at one stroke; Stand up structure below the stage casing of bedstead; Understructure is at the bottom of hospital bed, under the structure of middle level, comprise that the bottom frame is the bottom framework of hospital bed, right beam four side bars in end front-axle beam, the end back rest, Di Zuoliang and the end are arranged, a cross member, a bottom girder and several are located at the bead of setting up of member top and below respectively; One lifting mechanism is a quadric chain one of in the bedstead, is connected with the lifting pole of middle level structure with pivot.

2, hospital bed according to claim 1 is characterized in that: lift back of the body mechanism and comprise that again lifting back of the body frame is the head of a bed beam of the head of a bed and the hurdle frame between first crossbeam, an end cross bar is extended with two of two beads and first crossbeam and sets up bead with pivotally connected; Act back of the body frame stage casing is extended with downwards carries on the back at one stroke pole; Lifting back of the body driver element is the combination of a CD-ROM drive motor and a stepless inner screw, and the bead of setting up that an end extends with the side girder bottom surface of pivot and bedstead is connected, and the other end is connected stepless inner screw end with pivot with act back of the body pole tail end.

3, hospital bed according to claim 1, it is characterized in that: the act leg mechanism comprises that lower limb fork bar, one action lower limb frame, two are lifted leg connecting rods and one action lower limb driver element at one stroke, lower limb fork bar is a round bar at one stroke, there is a vertical act lower limb fork bar A bar of lifting lower limb fork bar main body round bar pole face in the stage casing, the vertical lower limb fork bar main body round bar pole face of lifting of one symmetry is respectively arranged in A bar both sides, and lift lower limb fork bar B bar with A bar " L " shape at angle; Act lower limb fork bar two ends are passed two symmetries of bedstead the 3rd crossbeam below respectively and are set up bead; At one stroke lower limb is set up in the hurdle frame on third and fourth crossbeam of bedstead, is become by three cross bars and two vertical pole cross coupled; Two act lower limb fork bar B bar ends are that pivot is connected with act lower limb frame to lift lower limb frame middle transverse rod; The lower limb driver element is the combination of a motor and a stepless inner screw at one stroke, and the bead of setting up that the one end extends with the tailstock soffit of pivot and bedstead is connected, and the other end is connected stepless inner screw end with pivot with act lower limb fork bar A bar tail end.

4, hospital bed according to claim 1, it is characterized in that: standing up divergent bar in the turning over mechanism is that a round bar is loaded in the middle longitudinal tubule (L tubule) of bedstead, and longitudinal tubule (L tubule) two ends second and third crossbeam of bedstead in being piercing in, to establish to stand up divergent bar be the center in standing up a end that divergent bar passes second crossbeam, be parallel to second crossbeam, and perpendicular to standing up divergent bar A bar, and be extended with one and vertically stand up the divergent bar B bar of standing up of divergent bar body round bar and the 3rd crossbeam in standing up a end that divergent bar passes the 3rd crossbeam; Stand up the combination that driver element is a motor and a stepless inner screw, the bead of setting up that an end that stands up driver element extends with the left soffit of bed of pivot and bedstead is connected, the other end with pivot with stepless inner screw end with stand up divergent bar B bar tail end and be connected.

5, hospital bed according to claim 1, it is characterized in that: lifting mechanism comprises two liftings fork bar, a lifting connecting rod, a lifting driver element, wherein the stage casing of lifting fork bar main body round bar is provided with a pair of perpendicular in main body round bar pole face, and the lifting fork bar A bar of interval one distance, respectively there is symmetrical, vertical lifting fork bar main body round bar pole face these A bar both sides, and with this lifting fork bar A bar lifting fork bar B bar at angle; And two liftings forks bar is setting up on the bead on parallel cross member that places a underframe respectively of pivot and the end front-axle beam with its main body round bar, and the B bar then is connected with lifting pole with pivot respectively; The lifting connecting rod is " worker " word bar, and two ends are run through with pivot respectively, and the end of the two pairs of liftings of horizontal connection fork bar A bar, and is provided with one in bottom surface, lifting connecting rod stage casing and sets up bead; The lifting driver element is a CD-ROM drive motor and stepless inner screw combination, the one end is connected with the bead of setting up that pivot and cross member and bottom girder bottom surface extends, and the other end is connected stepless inner screw end with pivot with the bead of setting up of bottom surface, lifting connecting rod stage casing.

6, hospital bed according to claim 1 is characterized in that: bedstead the bed left beam and the bed a right beam be respectively equipped with a guardrail, be one can fall to this left beam and the bed right beam upper limb guardrail, control key is located at the cross tube lower edge of guardrail.

7, hospital bed according to claim 1 is characterized in that: the head of a bed beam and the tailstock beam outside are respectively equipped with a backplate, and this two backplates lower edge is connected to respectively on the edge in the head of a bed beam and the tailstock beam outside.

8, hospital bed according to claim 1 is characterized in that: a meal plate upper limb is provided with two hooks and cooperates with the backplate upper limb, and meal plate dual-side lower edge is provided with two shallow trenchs, and the time spent will be eaten grillage at left and right sides guardrail upper limb.

9, hospital bed according to claim 1 is characterized in that: wheel is respectively moved in four jiaos of belows of bottom frame, moves wheel and is complete very property bed wheel.