CN104644349B - A kind of foldable multifunctional bed transport - Google Patents

Abstract

The invention relates to a multifunctional folding transfer bed, which comprises a back bed board assembly, a leg bed board assembly and a middle bed board. The back board assembly comprises a back board one, a back board two, a back board bracket and a back lifting device for lifting the back board one and the back board two. The leg board assembly comprises a leg board one, a leg board two, a leg board bracket and a leg lifting device for lifting the leg board one and the leg board two. A short pin is respectively provided on the inner tops of the two back bed legs, and a short pin is respectively provided on the inner tops of the two legs of the bed legs. The back bed board assembly and the leg bed board assembly are respectively hinged on both sides of the middle bed board. Beneficial effects of the present invention: 1. Multiple functions and high utilization rate; 2. Various bed lengths can be selected; 3. After folding, the volume is small and convenient for transfer and storage; 4. When folding, there are few moving parts, which is very simple and labor-saving; 4. , when the bed is in use, the force direction is perpendicular to the folding direction, which is more firm and reliable.

Description

A multifunctional folding transfer bed

technical field

The invention relates to the field of medical equipment, in particular to a multifunctional folding transfer bed.

Background technique

The transfer bed is widely used in various hospitals for transferring patients. Such as transporting the patient from the ward to the operating room or transporting the patient who has just completed the operation to the ward. At present, the clinically used transfer bed is mainly composed of a bed board and long legs, and the bed board and the bed legs are fixedly connected. The above-mentioned transfer bed has the following disadvantages: first, it cannot be folded and made smaller, and it takes up a lot of space when stored, and it is difficult to enter a hospital elevator with a large flow of people when it is used; second, it has a single function and a low utilization rate.

Aiming at the problem that the transfer bed cannot be folded and made smaller, Chinese patent application No. 201310744630.5 discloses a folding transfer medical bed. The back support legs are located on both sides of the middle part of the back bed frame, the leg support legs are located on both sides of the middle part of the leg bed frame, and the ends of the joints of the back bed frame and the leg bed frame are in contact with each other. Abut to form a frictional support surface; a first support link is hinged between the back support leg on each side and the leg bed frame on this side, and a first support link is hinged between the leg support leg on each side and the back bed frame on this side Both are hinged with a second support link, and the first support link and the second support link on each side are hinged to the support hinge shaft directly below the friction support surface of the side; the back bed frame and the leg bed frame A locking device is provided between the back bed frame and the leg bed frame at the joint to prevent upward tilting; opening the locking device can make the back bed frame and the leg bed frame fold in a vertical position, and then lock An upper locking device keeps both in the vertical folded position.

Although the above-mentioned patient transfer bed solves the problem that the transfer bed cannot be folded and made smaller, the bed and the legs of the bed are hinged together, which makes it impossible to make the bed too high, and the medical staff have to lean over to push it, which increases the work of the medical staff strength. If the bed is made higher, it is estimated that the height after folding will exceed 1.2 meters, which still takes up a lot of space, and because the center of gravity is high after folding, it is unstable to push. Finally, this transfer bed also has the problems of single function and low utilization rate.

Contents of the invention

Above-mentioned technical problem of the present invention is mainly solved by following technical scheme:

A multifunctional folding transfer bed, characterized in that it includes a back bed board assembly, a leg bed board assembly and a middle bed board; Elevated back lifting device; the back bed board 1 and back bed board 2 are connected by a hinge, the back bed board 2 and the back bed board bracket are hinged, one end of the lifting device is hinged at the end of the back bed board bracket near the head of the bed, and the other end is Hinged under the back deck two; the leg deck assembly includes the leg deck one, the leg deck two, the leg deck bracket and the leg lifting device for lifting the leg deck one and the leg deck two; the leg deck The first and the second leg bed boards are connected by hinges, the second leg bed board and the leg bed board bracket are hinged, one section of the lifting device is hinged at one end of the leg bed board bracket close to the bed, and the other end is hinged at the bottom of the second leg bed board Two vertical support rods are respectively fixed on the two sides below the middle bed board, and a horizontal support rod is arranged between the left and right vertical support rods. The vertical support rods are respectively hinged with bendable connectors, and the other end of the connectors is hinged with belts. The bed legs of the casters, the two bed legs under the back bed board are fixedly connected by several back bed leg cross bars, one of the back bed leg cross bars is at the same height as the cross bar between the vertical support bars, and the two bed legs at the same height There are also bendable connectors hinged between the crossbars; the structure and connection method of the leg bed legs are the same as the back bed legs; a short pin is provided on the inner top of the two back bed legs, and the inner top of the two leg bed legs A short pin is respectively provided; the back bed board assembly and the leg bed board assembly are respectively hinged on both sides of the middle bed board.

The leg lifting device includes a screw rod and two screw sleeves. One end of the screw rod has a right-handed thread and the other end has a left-handed thread. One screw sleeve is right-handed and the other is left-handed. The screw sleeve can only move from one end of the screw to the end position. . One end of the diagonal strut is hinged on the screw sleeve, and the other end is on the short axis of the rotating shaft connected by a universal part (such as a joint bearing). There is a hand crank at one end of the guide rail

The back lifting device includes a screw rod and two sliders, which are slider one and slider two respectively; left-handed threads and right-handed threads are arranged alternately on the outer wall of the screw rod; Arc-shaped groove, the inner wall of the arc-shaped groove of the slider 1 is provided with a thread that matches the left-handed thread, and the inner wall of the arc-shaped groove of the slider 2 is provided with a thread that matches the right-handed thread; both ends are optical axes, and the optical axis is provided with A seat that can rotate freely on the optical axis; the screw rod is provided with two directional guide rails, and the slider 1 and the slider 2 can perform relative reciprocating motion along the two directional guide rails respectively; there are two directional guide rails, It consists of two upper and lower pieces, and the two seats are fixed together with the two ends of the directional guide rail respectively. The protrusions, the protrusions of the first slide block and the second slide block are respectively stuck in the grooves of the two orientation guide rails and can slide along the orientation guide rails.

In the above-mentioned multifunctional folding transfer bed, the hinge connecting the back bed board one and the back bed leg two includes a part with a hole, a guide rod and a spring; the part with a hole is fixed on the back bed board two, Guide bar passes hole, and spring is enclosed within on guide bar and adds retaining ring to press down spring, and back bed board one is hinged on the opposite end of guide bar and spring; Back bed board one and back bed board two are directly equipped with two such hinges.

In the above-mentioned multifunctional folding transfer bed, two short rods are fixed on the end of the back bed board 1 close to the back bed board 2 to limit the rotation angle of the back bed board 1 .

In the above-mentioned multifunctional folding transfer bed, the width of the back bed board bracket is slightly smaller than the distance between the two back bed legs, and the bracket is mainly composed of two left and right 5-shaped parts and a rotating shaft. A horizontal groove is provided, and the rotating shaft is arranged under the 5-shaped part close to the end of the bed; on the inner side of the 5-shaped part on both ends of the rotating shaft, a short shaft is respectively arranged, and the short shaft is perpendicular to the axis of the rotating shaft, and the two short shafts are centrally symmetrical. The center is the midpoint of the shaft centerline.

In the above-mentioned multi-functional folding transfer bed, the first leg bed board and the second leg bed board are connected together through the above two hinges, and the structure of the leg bed board bracket is basically the same as that of the back bed board bracket, the difference is that the shaft There is a groove on the top not necessarily directly above; a rectangular support structure is hinged at about the middle of the bottom of the leg bed, and the other end of the rectangular support structure can be inserted into the groove of the leg bed bracket; the leg bed lifting device includes two-way synchronous half-stroke The guide rail and two diagonal struts; the two-way synchronous half-stroke guide rail includes a screw rod and two screw sleeves. One end of the screw rod is provided with a right-handed thread and the other end is provided with a left-handed thread. It can move from one end of the screw rod to the end position; one end of the diagonal strut is hinged on the screw sleeve, and the other end is connected to the short axis of the rotating shaft through a universal part; one end of the guide rail is provided with a hand handle.

In the above-mentioned multifunctional folding transfer bed, the connecting piece is composed of two trapezoidal parts, the two trapezoidal parts are hinged together by the shorter side of the parallel sides, and the longer sides are respectively hinged on the vertical support bar and the bed legs. In addition, the cross braces between the bed leg cross braces and the vertical support rods are also connected by such bendable connectors.

In the above-mentioned multifunctional folding transfer bed, the four parts of the back bed leg assembly, the leg bed board assembly, the back bed leg and the leg bed leg move independently.

In the above-mentioned multifunctional folding transfer bed, the two sides of the back bed board two and the leg bed board two are respectively provided with rotatable guardrails.

In the above-mentioned multifunctional folding transfer bed, storage baskets are provided at the bottom of the legs of the bed.

Therefore, the present invention has the following advantages: 1. Multiple functions and high utilization rate; 2. There are various bed lengths to choose from; 3. After folding, the volume is small and convenient for transfer and storage; 4. When folding, there are few moving parts, which is very simple and labor-saving ; 5. The force direction of the bed during use is perpendicular to the folding direction, which is more firm and reliable.

Description of drawings

Fig. 1 is the perspective view of flat bed state of the present invention;

Fig. 2 is a perspective view of the present invention reduced to a minimum volume state;

Fig. 3 is a perspective view of the present invention folded into a stroller state;

Figure 4 is a perspective view of the present invention in a reclining state;

Fig. 5 is a perspective view of the hinge mechanism in the present invention;

Fig. 6 is a perspective view of the present invention in a short bed state;

Figure 7 is a perspective view of the present invention in the state of a truck;

Fig. 8 is a side view among the present invention;

Fig. 9 is a structural diagram of trapezoidal parts in the present invention;

Figure 10 is a bottom view of the present invention;

Fig. 11 is a schematic diagram of the two-way synchronous half-stroke guide rail adopted by the back lifting device in the present invention.

Fig. 12 is a two-way synchronous half-stroke guide rail adopted by the leg lifting device in the present invention.

detailed description

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the figure, back bed board assembly 1, back bed board one 101, back bed board two 102, two-way synchronous full-range guide rail 103, long diagonal strut 104, short shaft 105, rotating shaft 106, hand crank 107, 5-shaped part 108, and long slot 109 , short rod 110, holed parts 111, guide rod 112, spring 113, retaining ring 114, leg bed assembly 2, leg bed one 201, leg bed two 202, short diagonal brace 203, groove 204, short shape Support member 205, screw rod 206, right helical sleeve 207, left helical sleeve 208, middle bed board 3, back bed leg 4, leg bed leg 5, upright column 6, cross bar 7, guardrail 8, trapezoidal part 9, storage basket 10 , Short pin 11, screw mandrel 12, slide block one 13, slide block two 14, orientation guide rail 15, seat 16.

Example:

At first introduce the mechanical structure of the present invention:

The invention includes a back deck assembly, a leg deck assembly and a middle deck; the back deck assembly includes a back deck one, a back deck two, a back deck bracket and a back lifting device for lifting the back deck one and the back deck two; the back deck One and the back bed board two are connected by a hinge, the back bed board two and the back bed board bracket are hinged, one end of the back lifting device is hinged at the end of the back bed board bracket near the head of the bed, and the other end is hinged at the bottom of the back bed board two; the leg bed board assembly It includes the first leg bed board, the second leg bed board, the leg bed board bracket and the leg lifting device for lifting the leg bed board 1 and the leg bed board 2; the leg bed board 1 and the leg bed board 2 are connected by a hinge, and the The second leg bed board and the leg bed board bracket are hinged, and one section of the leg lifting device is hinged at one end of the leg bed board bracket close to the bed, and the other end is hinged at the bottom of the second leg bed board; two vertical supports are respectively fixed on both sides of the middle bed board There are horizontal braces between the left and right vertical support rods, and the vertical support rods are respectively hinged with bendable connectors. The other end of the connectors is hinged with bed legs with casters, and the two bed legs under the back bed board Fixedly connected by a number of back bed leg cross bars, one of the back bed leg cross bars and the cross bar between the vertical support bars are at the same height, and there are also bendable connectors hinged between the two cross bars at the same height; the legs The structure and connection method of the upper bed legs are the same as the back bed legs; there is a short pin on the inner top of the two back bed legs, and a short pin on the inner top of the two legs; the back bed board assembly and the legs The bed board assembly is respectively hinged on both sides of the middle bed board.

The hinge connecting the back bed board one and the back bed leg two comprises a part with a hole, a guide rod and a spring; the part with a hole is fixed on the back bed board two, the guide rod passes through the hole, the spring is sleeved on the guide rod Add a retaining ring to press the spring, and the back bed board one is hinged on the end of the guide rod opposite to the spring; the back bed board one and the back bed board two are directly equipped with two such hinges; the back bed board one end close to the back bed board two is fixed with two hinges. The short rod is used to limit the rotation angle of the back bed board one.

The width of the back bed bracket is slightly smaller than the distance between the two back bed legs. The bracket is mainly composed of two left and right 5-shaped parts and a rotating shaft. There is a horizontal groove under each 5-shaped part, and the rotating shaft is set on the 5-shaped part. The bottom is close to one end of the head of the bed; the inner side of the 5-shaped part on the two ends of the rotating shaft is respectively provided with a short shaft, the short shaft is perpendicular to the axis of the rotating shaft, and the two short shafts are centrally symmetrical, and this center is the midpoint of the center line of the rotating shaft.

The first leg bed board and the second leg bed board are connected together through the above two hinges. The structure of the leg bed board bracket is basically the same as that of the back bed board bracket. The difference is that a groove is not necessarily directly above the rotating shaft; There is a rectangular support structure hinged at about the middle of the lower part of the bed board, and the other end of the rectangular support structure can be stuck into the groove of the leg bed board bracket; the leg bed board lifting device includes a two-way synchronous half-stroke guide rail and two diagonal struts; a two-way synchronous half-stroke The stroke guide rail includes a screw rod and two screw sleeves. One end of the screw rod is provided with a right-handed thread and the other end is provided with a left-handed thread. One of the screw sleeves is right-handed and the other is left-handed. One end of the strut is hinged on the screw sleeve, and the other end is connected to the short shaft of the rotating shaft through a universal part; one end of the guide rail is provided with a hand crank.

The connector consists of two trapezoidal parts, the two trapezoids are hinged together by the shorter side of the parallel sides, and the longer sides are connected to the vertical support bar and the bed leg respectively; in addition, the bed leg cross bar and the vertical support bar The cross braces between are also connected by such bendable connectors.

The four parts of the back bed leg assembly, the leg bed board assembly, the back bed leg and the leg bed leg move independently; the two sides of the back bed board 2 and the leg bed board 2 are respectively provided with rotatable guardrails; the bottom of the leg bed leg is provided with storage basket

In the present invention, the back lifting device includes a screw rod and two sliders, which are respectively slider one and slider two; the outer wall of the screw rod is alternately provided with left-handed threads and right-handed threads; slider one and slider The two are respectively provided with arc grooves, the inner wall of the arc groove of the slider 1 is provided with a thread matched with the left-handed thread, and the inner wall of the arc-shaped groove of the slider 2 is provided with a thread matched with the right-handed thread; both ends are optical axes, The optical axis is provided with a seat that can rotate freely on the optical axis; the screw rod is provided with two directional guide rails, and the slider 1 and the slider 2 can perform relative reciprocating motion along the two directional guide rails; the orientation There are two guide rails, which are upper and lower pieces. The two seats are respectively fixed with the two ends of the directional guide rail. The cross section of each directional guide rail is concave. Each end face is provided with a protrusion, and the protrusions of the first slider and the second slider are respectively stuck in the grooves of the two orientation guide rails and can slide along the orientation guide rails.

The leg lifting device includes a screw rod and two sliders, which are slider one and slider two respectively; left-handed threads and right-handed threads are arranged alternately on the outer wall of the screw rod; There are arc-shaped grooves, the inner wall of the arc-shaped groove of the slider 1 is provided with a thread that matches the left-handed thread, and the inner wall of the arc-shaped groove of the slider 2 is provided with a thread that matches the right-handed thread; the two ends are optical axes, and the optical axis is set There is a seat that can rotate freely on the optical axis; there are several directional guide rails on the screw rod, and the slider 1 and the slider 2 can carry out relative reciprocating motion along the two directional guide rails respectively. The parallel parallel shaft is arranged between two seats, the two ends of the shaft are respectively fixed on the two seats, and holes are arranged on the two sliders, and the axis of the hole is parallel to the axis of the parallel shaft; the two sliders The holes of the block are respectively sleeved on different parallel axes.

Two, below in conjunction with wherein 6 kinds of functions and accompanying drawing, the present invention is described further. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

1. The working principle of the tablet state.

At this time, the bendable connectors between the back bed legs and the vertical support rods are in the most extended state, and the bendable connectors between the leg bed legs and the vertical support rods are also in the most extended state, and the short pins on the top of the legs are locked. Enter the long groove of the 5-shaped part, the rectangular support is stuck in the small groove, the two lifting devices are at the lowest position, the hinge spring reaches the longest state, and the five bed boards are parallel to each other. The guardrail can be erected or lowered.

2. The working principle of reclining state.

On the basis of the flatbed car, turn the hand crank on the back, and the guide rail will drive the two diagonal struts and the universal parts to rotate around the short axis at the same time. Turn the hand handle of the legs, the second leg bed board is lifted in the same way, and the second leg bed board bends relative to the second leg bed board under the pulling of the rectangular support rod. Reach the reclining position.

3. The working principle of the short bed state.

On the basis of the flat bed, turn the leg bed board upwards by 90° and fix it. At this point the rectangular support is pulled out of the slot. Push the bed leg of the leg to drive the bendable connector to bend, the short pin slides in the long slot, and pushes to the proper position to fix the bed leg. A short bed state is achieved.

4. The working principle of the stroller state.

On the basis of the short bed, turn the back bed board by 90° and fix it, push the back bed leg, drive the bendable connector to bend, the short pin slides in the long slot, and push it to the appropriate position to fix the bed leg. Reach the state of children's car.

5. The working principle of the truck status.

On the basis of the children's car, continue to turn the leg bed board 90° in the original direction and fix it. During the rotation process, the leg bed board pulls up the guide rod and the spring pressing block, the spring is compressed, and the leg bed board is pressed against the leg bed board. On the second. Hold up the leg bed assembly with your hands, push the leg bed legs under the middle bed board, put down the leg bed assembly, and lean against the outside of the leg bed legs, the leg guardrail can be stowed or not. Reach the cargo truck status.

6. The working principle of the minimum volume state.

On the basis of the cargo vehicle, continue to rotate the back bed board 90° along the original direction and fix it. During the rotation process, the back bed board 1 pulls the guide bar and the spring pressing block upwards, the spring is compressed, and the back bed board 1 presses on the back bed board 2. Hold the back deck assembly with your hands, push the back bed legs under the middle deck, put down the leg deck assembly, lean against the outside of the back bed legs, and put away all the guardrails. The state of minimum volume state is reached.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although this paper has used the back bed board assembly 1, the back bed board one 101, the back bed board two 102, the two-way synchronous full-range guide rail 103, the long diagonal strut 104, the short shaft 105, the rotating shaft 106, the hand crank 107, and the 5-shaped part 108 more often. , long slot 109, short rod 110, holed part 111, guide rod 112, spring 113, retaining ring 114, leg bed assembly 2, leg bed one 201, leg bed two 202, short diagonal brace 203, groove 204, short support member 205, screw rod 206, right helical sleeve 207, left helical sleeve 208, middle bed board 3, back bed leg 4, leg bed leg 5, upright column 6, cross bar 7, guardrail 8, trapezoidal part 9, Terms such as storage basket 10, short pin 11, screw mandrel 12, slide block one 13, slide block two 14, orientation guide rail 15, seat 16, but do not get rid of the possibility of using other terms. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (9)

1. a kind of foldable multifunctional bed transport is it is characterised in that include back chair assembly, leg chair assembly and middle bed board； Back chair assembly includes back bed board one, back bed board two, back bed board bracket and allows back bed board one and back bed board The back lowering or hoisting gear of two liftings；Described back bed board one and back bed board two pass through gemel connection, described back bed board two He Back bed board bracket is hinged, and described back lowering or hoisting gear one end is hinged on back bed board bracket near head of a bed one end, and the other end cuts with scissors It is connected on below back bed board two；Leg chair assembly includes leg bed board one, leg bed board two, leg bed board bracket and allows lower limb Portion's bed board one and the leg lowering or hoisting gear of leg bed board two lifting；Described leg bed board one and leg bed board two are by hinge even Connect, described leg bed board two and leg bed board bracket are hinged, and one section of described leg lowering or hoisting gear is hinged on leg bed board bracket and leans on Nearly bed one end, the other end is hinged on below leg bed board two；Below middle bed board, both sides fix two vertical support bars respectively, left Be provided with singletree between right vertically support bar, vertical support bar be respectively articulated with the connector that can bend, connector another One end is hinged with the footpost of foot wheel, and two under the bed board of back footpost is fixedly connected by some backs footpost cross bar, wherein Cross bar between a piece back footpost cross bar and vertical strut is in sustained height, is in also hinged between two cross bars of sustained height There is the connector that can bend；The structure of leg footpost is identical with back footpost with connected mode；Article two, back footpost medial roof Portion is respectively equipped with a short pin, and two legs portion footpost inside top is respectively equipped with a short pin；Back chair assembly and leg bed Board component is respectively hinged at the both sides of middle bed board；

Leg lowering or hoisting gear includes a screw rod, two swivel nuts, and screw rod one end is provided with the right-handed thread other end and is provided with left hand thread, Swivel nut one is dextrorotation one is left-handed, and swivel nut can only move to final position from one end of screw rod；Hound one end is hinged on On one of swivel nut, the other end is connected in the short axle of rotating shaft by universal part, and bi-directional synchronization half trip guide rail one end sets There is wind；

Back lowering or hoisting gear includes a screw mandrel and two slide blocks, is slide block one and slide block two respectively；Described screw mandrel outer wall interlocks It is provided with left hand thread and right-handed thread；Arcuate groove is respectively equipped with slide block one and slide block two, the arcuate groove inwall of slide block one sets There is the screw thread with left hand thread engagement, the arcuate groove inwall of slide block two is provided with the screw thread with right-handed thread cooperation；Two ends are optical axises, Optical axis is provided with stand that can be freely rotatable on optical axis；Described screw mandrel is provided with two orientation guide rails, slide block one and slide block two Can be done relatively reciprocating motion along two orientation guide rails respectively；Described orientation guide rail is two, for upper and lower two pieces, two stands It is fixed together with orientation guide rail two ends respectively, each orientation guide rail section is concave shape, and slide block one upper and lower end face is respectively provided with one Individual projection；The upper and lower end face of slide block two is respectively provided with a projection, and the projection of slide block one and slide block two is stuck in two orientations and leads In the groove of rail and energy edge orientation slide.

2. a kind of foldable multifunctional bed transport according to claim 1 is it is characterised in that described connection back bed board one He The hinge of back footpost two includes a part with holes, a guide post and a spring；Pored component is fixed on back bed On plate two, guide post pass through hole, spring housing on the guide bar and plus back-up ring pressing spring, back bed board one be hinged on guide post and The relative one end of spring；Back bed board one and back bed board two are directly equipped with two such hinges.

3. a kind of foldable multifunctional bed transport according to claim 1 is it is characterised in that back bed board one is near back bed One end of plate two is fixed with two quarter butts, for limiting the rotational angle of back bed board one.

4. a kind of foldable multifunctional bed transport according to claim 2 is it is characterised in that the width of back bed board bracket omits Less than the spacing of two back footposts, bracket is mainly made up of left and right two 5 font parts and a rotating shaft, each 5 font zero It is designed with level trough, rotating shaft is located at below 5 font parts near head of a bed one end below part；5 font parts on described rotating shaft two ends Inner side is respectively equipped with a short axle, and short axle is vertical with shaft axis, and two short axles are centrosymmetric, and this center is exactly in rotating shaft The midpoint of heart line.

5. a kind of foldable multifunctional bed transport according to claim 2 is it is characterised in that leg bed board one and leg bed board Two are connected together by above-mentioned two hinge, and the structure of leg bed board bracket is essentially identical with back bed board bracket, except for the difference that It is provided with groove directly over being not necessarily above rotating shaft；About centre position is hinged with rectangular support structure to leg bed board one below, The rectangular support structure other end can stick in the groove of leg bed board bracket；Leg bed board lifting device includes bi-directional synchronization hemistich Journey guide rail and two hounds；Bi-directional synchronization half trip guide rail includes a screw rod, two swivel nuts, and screw rod one end is provided with dextrorotation spiral shell The stricture of vagina other end is provided with left hand thread, and swivel nut one is dextrorotation one is left-handed, and swivel nut can only move to terminal from one end of screw rod Position；Hound one end is hinged on swivel nut, in the short axle of the rotating shaft that the other end is connected by universal part；Bi-directional synchronization hemistich Journey guide rail one end is provided with wind.

6. a kind of foldable multifunctional bed transport according to claim 2 is it is characterised in that described connector is trapezoidal by two Part forms, and two trapezoidal hinged by shorter side in parallel edges, and long side is relatively connected on vertical support bar and bed respectively On lower limb；In addition the singletree between footpost singletree and vertical support bar connects also by such flexible connector.

7. a kind of foldable multifunctional bed transport according to claim 2 is it is characterised in that back footpost assembly, leg bed Board component, back footpost and leg footpost four partial independent movement.

8. a kind of foldable multifunctional bed transport according to claim 2 is it is characterised in that back bed board two and leg bed board Two are respectively provided on two sides with rotary guardrail.

9. a kind of foldable multifunctional bed transport according to claim 2 is it is characterised in that leg footpost bottom is provided with storing Basket.