CN218246480U - Bed - Google Patents

Abstract

The utility model discloses a bed, which comprises a lower bed frame, an upper bed frame and a driving component, wherein the lower bed frame comprises a supporting part which is used for contacting with a supporting surface; the upper bed frame is provided with a bed surface for a user to lie; the driving component is arranged on the lower bed frame and connected with the upper bed frame, and the driving component is used for driving the upper bed frame to vertically lift or vertically descend relative to the lower bed frame so as to lift or descend the bed surface relative to the lower bed frame. The utility model provides a bed can need not many people when adjusting the bed height and join in marriage power, and requires lowly to the installation space of bed.

Description

Bed

Technical Field

The application relates to the technical field of furniture articles, in particular to a bed.

Background

The bed comprises a bed body and bed legs arranged at the bottom of the bed body, and under normal conditions, the bed height (namely the sum of the heights of the bed body and the bed legs) is fixed, but some users have different requirements on the bed height. In order to meet the requirements of users on different bed heights, in the related art, the purpose of adjusting the bed height is realized by replacing a new bed leg with the height different from that of the original bed leg.

When a new bed foot is replaced, firstly, a plurality of persons are required to combine to turn the bed, so that the original bed foot leaves the ground, the original bed foot is convenient to detach from the bed body, the new bed foot is installed on the bed body, and finally, the bed is turned over to enable the new bed foot to support the bed body. Therefore, when the bed height is changed by replacing the bed legs, on one hand, the bed legs can be replaced by a plurality of persons in a resultant force manner, on the other hand, the installation space of the bed is not easy to be too small, otherwise, the bed cannot be turned over to replace the bed legs.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model provides a bed can need not many people when adjusting the bed height and join in marriage power, and requires lowerly to the installation space of bed.

In order to solve the technical problem, the utility model provides a bed, include:

a lower bed frame including a support portion for contacting a support surface;

an upper bed frame, which forms a bed surface for a user to lie; and

the driving assembly is arranged on the lower bed frame and connected with the upper bed frame, and the driving assembly is used for driving the upper bed frame to vertically lift or vertically descend relative to the lower bed frame so as to lift or descend the bed surface relative to the lower bed frame.

In one possible implementation, the upper frame is slidably disposed on the lower frame in a vertical direction.

In one possible implementation, the upper frame is slidably disposed on the lower frame in a vertical direction through a guide structure, the guide structure includes a shaft sleeve and a guide shaft slidably inserted in the shaft sleeve, one of the shaft sleeve and the guide shaft is disposed on the upper frame, and the other is disposed on the lower frame.

In one possible implementation, the guiding structure includes a plurality of guiding structures, and the plurality of guiding structures are uniformly distributed on the peripheral edge of the upper bed frame.

In a possible implementation manner, the driving assembly comprises a telescopic cylinder and an adjusting assembly, the adjusting assembly comprises a first connecting piece and a second connecting piece which are connected in a rotating mode, the first connecting piece is further connected with the upper bed frame in a rotating mode, the second connecting piece is further connected with the lower bed frame in a rotating mode, and the telescopic cylinder is used for driving the first connecting piece to deviate from or face the second connecting piece to rotate, so that the upper bed frame is vertically lifted or vertically lowered relative to the supporting portion.

In a possible implementation manner, the first connecting piece and the second connecting piece each include a first connecting rod, a second connecting rod and a third connecting rod which are connected in sequence, the first connecting rod and the third connecting rod are parallel to each other and are perpendicular to the second connecting rod, the first connecting rod in the first connecting piece and the first connecting rod in the second connecting piece are rotatably connected, the first connecting rod is further rotatably connected with the upper bed frame, the third connecting rod in the first connecting piece and the third connecting rod in the second connecting piece are rotatably connected, the third connecting rod is further rotatably connected with the lower bed frame, and the telescopic cylinder is connected with the second connecting rod in the first connecting piece or the second connecting rod in the second connecting piece.

In a possible implementation mode, the adjusting component comprises two sets of adjusting components arranged at intervals along the direction of the bed head pointing to the bed tail, and the fixed end of the telescopic cylinder is connected with the second connecting rod in the adjusting component, and the telescopic end of the telescopic cylinder is connected with the second connecting rod in the adjusting component.

In a possible implementation, go up the bedstead and include that first bearing frame and a plurality of being located bed board on the first bearing frame is a plurality of the bed board is arranged in proper order along the direction of the directional tailstock of head of a bed, and is a plurality of the bed board forms the bed surface, is close to the head of a bed board and/or be close to the tailstock the bed board with first bearing frame rotates to be connected.

In a possible implementation manner, still be provided with the swing driving piece on the first bearing frame, the swing driving piece is used for driving and is close to the head of a bed the bed board and/or be close to the tailstock the bed board revolutes the axis of rotation upwards or swing down, the axis of rotation perpendicular to the head of a bed is directional the direction of tailstock, and with the bed board is parallel.

In a possible implementation manner, the lower frame includes two layers of second bearing frames stacked in a vertical direction, a support column disposed between the two layers of second bearing frames, and a bed foot disposed on the second bearing frame away from the upper frame, the bed foot being the support portion.

Compared with the prior art, the application has at least the following beneficial effects:

in this application, because drive assembly sets up on lower bedstead, and drive assembly is connected with last bedstead, drive assembly is used for driving the vertical lifting of bedstead for lower bedstead or vertical decline, consequently, it sets up on lower bedstead through drive assembly to go up the bedstead, when drive assembly drove the bedstead and for lower bedstead vertical rising, the height of bed surface will rise thereupon, thereby make this bed be applicable to the higher user's use of bed height requirement, when drive assembly drove the bedstead and for lower bedstead vertical decline, the height of bed surface will reduce thereupon, thereby make this bed be applicable to the lower user's use of bed height requirement, in addition, when changing the bed height, need not many people to combine together and overturn the bed, only need to start drive assembly and can change the bed height, from this, when the bed is installed in less installation space, also can realize changing the purpose of bed height, it can see, the bed can be applicable to installation in the great installation space, can be applicable to installation in the less installation space again.

Drawings

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

Fig. 1 is a schematic structural view of a bed in a bed frame descending state according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a bed according to an embodiment of the present invention in a lifting state;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

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

fig. 5 is a schematic structural diagram of an adjusting assembly of a bed provided by an embodiment of the present invention;

fig. 6 is an exploded view of a bed according to an embodiment of the present invention.

Description of reference numerals:

100-bed; 110-lower bed frame; 111-a support; 112-a second carrying frame; 113-a support column; 120-upper bed frame; 121-bed surface; 122-a first carrying frame; 123-bed board; 124-rotating shaft; 130-a drive assembly; 131-a telescopic cylinder; 132-an adjustment assembly; 1321-a first connector; 1322-a second connector; 132 a-first connecting rod; 132 b-a second connecting rod; 132 c-a third connecting rod; 140-a guide structure; 141-shaft sleeve; 142-a guide shaft; 150-oscillating drive.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The bed comprises a bed body and bed legs arranged at the bottom of the bed body, and under the normal condition, the bed height (namely the sum of the height of the bed body and the height of the bed legs) is fixed, but the requirements of some users on the bed height are different. In order to meet the requirements of users on different bed heights, in the related art, the purpose of adjusting the bed height is realized by replacing a new bed leg with the height different from that of the original bed leg.

When a new bed foot is replaced, firstly, a plurality of persons are required to combine to turn the bed, so that the original bed foot leaves the ground, the original bed foot is convenient to detach from the bed body, the new bed foot is installed on the bed body, and finally, the bed is turned over to enable the new bed foot to support the bed body. Therefore, when the bed height is changed by replacing the bed legs, on one hand, the bed legs can be replaced by a plurality of persons in a resultant force manner, on the other hand, the installation space of the bed is not easy to be too small, otherwise, the bed cannot be turned over to replace the bed legs.

In view of this point, the embodiment of the utility model provides a bed can need not many people to make a concerted effort when adjusting the bed height, and does not have the requirement to the installation space of bed.

The present application is illustrated in detail below by specific examples:

referring to fig. 1 and 2, the present embodiment provides a bed 100, the bed 100 including a lower frame 110, an upper frame 120, and a driving assembly 130, wherein the lower frame 110 includes a support portion 111 for contacting a support surface; the upper frame 120 is formed with a bed surface 121 on which a user lies; the driving assembly 130 is disposed on the lower frame 110 and connected to the upper frame 120, and the driving assembly 130 is used for driving the upper frame 120 to vertically lift or vertically lower relative to the lower frame 110, so that the bed surface 121 lifts or lowers relative to the lower frame 110.

The support surface is a ground surface. The vertical direction refers to the scoring direction indicated by the Y arrow in fig. 1.

In this embodiment, since the driving assembly 130 is disposed on the lower frame 110, the driving assembly 130 is connected to the upper frame 120, and the driving assembly 130 is used for driving the upper frame 120 to vertically lift or vertically lower relative to the supporting portion 111, the upper frame 120 is disposed on the lower frame 110 through the driving assembly 130, the lower frame 110 is disposed on the ground through the supporting portion 111, when the driving assembly 130 drives the upper frame 120 to vertically lift relative to the lower frame 110, the height of the bed surface 121 will be raised accordingly, so that the bed 100 is suitable for users with lower requirements on the bed 100, and when the driving assembly 130 drives the upper frame 120 to vertically lower relative to the lower frame 110, the height of the bed surface 121 will be lowered accordingly, so that the bed 100 is suitable for users with lower requirements on the bed 100, and in addition, when the height of the bed 100 is changed, the bed 100 does not need to be overturned by a resultant force of multiple persons, the height of the bed 100 can be changed by only starting the driving assembly 130, and therefore, when the bed 100 is installed in a smaller installation space, the purpose of changing the height of the bed 100 can be also achieved.

The bed 100 in the present embodiment may be an electric bed or a manual bed.

In some possible embodiments, referring to fig. 1 and 2, the upper frame 120 is slidably disposed on the lower frame 110 in a vertical direction.

Through the slidable setting of the upper bed frame 120 on the lower bed frame 110, the upper bed frame 120 can be prevented from being dislocated compared with the lower bed frame 110 when vertically ascending or vertically descending, thereby ensuring the consistency of the vertical ascending or vertical descending sliding of the upper bed frame 120.

In some possible embodiments, referring to fig. 2 and 3, the upper frame 120 is slidably disposed on the lower frame 110 in a vertical direction by a guide structure 140, the guide structure 140 includes a shaft sleeve 141 and a guide shaft 142 slidably inserted in the shaft sleeve 141, one of the shaft sleeve 141 and the guide shaft 142 is disposed on the upper frame 120, and the other is disposed on the lower frame 110.

By providing the guide mechanism, the sliding path of the upper frame 120 can be guided in the vertical direction, so that the upper frame 120 is prevented from being deviated from the sliding path of the upper frame 120 when vertically ascending or vertically descending, thereby ensuring the stability of the bed 100.

In addition, since the installation process of the guide structure 140 formed by the shaft housing 141 and the guide shaft 142 is simple, the installation process of the bed 100 is simplified.

It should be noted that, when the shaft sleeve 141 is disposed on the lower frame 110, the shaft sleeve 141 and the lower frame 110 may be integrally formed, or may be in a separate structure, for example, when the shaft sleeve 141 and the lower frame 110 are integrally formed, optionally, a sliding through hole is formed on the lower frame 110, the sliding through hole is the shaft sleeve 141, and an inner diameter of the shaft sleeve 141 is slightly smaller than an outer diameter of the guide shaft 142, so that the guide shaft 142 smoothly slides in the shaft sleeve 141, and in order to reduce a friction force between the shaft sleeve 141 and the guide shaft 142, optionally, a lubricating material layer, such as lubricating oil, is accommodated between the shaft sleeve 141 and the guide shaft 142. When the sleeve 141 is disposed on the upper frame 120, the sleeve 141 is disposed on the lower frame 110 together with the sleeve 141, which will not be described again.

In some possible embodiments, referring to fig. 2, the guide structure 140 includes a plurality of guide structures 140 uniformly distributed on the peripheral edge of the upper frame 120.

The plurality of guide structures 140 are uniformly distributed on the peripheral edge of the upper bed frame 120, so that the uniformity of the guide force of the plurality of guide structures 140 on the upper bed frame 120 can be ensured, the situation that the guide structures 140 are blocked due to the fact that the upper bed frame 120 inclines in the vertical ascending or vertical descending process is avoided, and the stability of the upper bed frame 120 in the vertical ascending or vertical descending process is ensured.

The plurality of guide structures 140 refer to two or more guide structures 140, for example, when the upper frame 120 is a rectangular frame and the number of the guide structures 140 is 4, the 4 guide structures 140 are distributed at four corners of the upper frame 120.

In some possible embodiments, referring to fig. 2 and 4, the driving assembly 130 includes a telescopic cylinder 131 and an adjusting assembly 132, the adjusting assembly 132 includes a first connecting member 1321 and a second connecting member 1322 which are rotatably connected to each other, the first connecting member 1321 is further rotatably connected to the upper frame 120, the second connecting member 1322 is further rotatably connected to the lower frame 110, and the telescopic cylinder 131 is used for driving the first connecting member 1321 to rotate away from or towards the second connecting member 1322, so as to vertically raise or vertically lower the upper frame 120 relative to the supporting portion 111.

Because the first connecting element 1321 and the second connecting element 1322 are rotatably connected, the first connecting element 1321 is connected to the upper frame 120, the second connecting element 1322 is connected to the lower frame 110, and the telescopic cylinder 131 can drive the first connecting element 1321 or the second connecting element 1322 to rotate, when the telescopic cylinder 131 drives the first connecting element 1321 or the second connecting element 1322 to rotate, the first connecting element 1321 and the second connecting element 1322 can be mutually opened or closed, so that the upper frame 120 is vertically lifted or lowered relative to the lower frame 110.

The first connecting member 1321 and the second connecting member 1322 are not limited in structure, for example, the first connecting member 1321 and the second connecting member 1322 are both square connecting plates, an included angle is formed between the two connecting plates, one side of the two connecting plates is rotatably connected, and the other side of the two connecting plates is rotatably connected with the upper frame 120 and the lower frame 110, respectively, so that the height of the upper frame 120 relative to the lower frame 110 can be adjusted by adjusting the included angle between the two connecting plates.

For another example, referring to fig. 4 and 5, the first connecting member 1321 and the second connecting member 1322 each include a first connecting rod 132a, a second connecting rod 132b, and a third connecting rod 132c connected in sequence, the first connecting rod 132a and the third connecting rod 132c are parallel to each other and are perpendicular to the second connecting rod 132b, the first connecting rod 132a of the first connecting member 1321 and the first connecting rod 132a of the second connecting member 1322 are rotatably connected, the first connecting rod 132a is further rotatably connected to the upper frame 120, the third connecting rod 132c of the first connecting member 1321 and the third connecting rod 132c of the second connecting member 1322 are rotatably connected, the third connecting rod 132c is further rotatably connected to the lower frame 110, and the telescopic cylinder 131 is connected to the second connecting rod 132b of the first connecting member 1321 or the second connecting rod 132b of the second connecting member 1322.

Since the first and second connecting members 1321 and 1322 are each formed of the first, second, and third connecting rods 132a, 132b, and 132c, which are connected in sequence, that is, the first and second connecting members 1321 and 1322 are frame structures, the first and second connecting members 1321 and 1322 have a light weight.

In addition, the first connecting rod 132a and the third connecting rod 132c are parallel to each other and perpendicular to the second connecting rod 132b, so that the connecting process between the first connecting rod 132a and the second connecting rod 132b and between the third connecting rod 132c and the second connecting rod 132b can be simplified.

In addition, in order to ensure the rotational connection of the first and second connection members 1321 and 1322, optionally, when the second connection rod 132b of the first connection member 1321 is connected to the ends of the first and third connection rods 132a and 132c, respectively, the second connection rod 132b of the second connection member 1322 is connected to the positions of the first and third connection rods 132a and 132c near the ends, respectively, so as to prevent the second connection rod 132b of the first connection member 1321 and the connection rod of the second connection member 1322 from interfering when the first and second connection members 1321 and 1322 rotate.

There are various connection structures of the telescopic cylinder 131, for example, a telescopic end of the telescopic cylinder 131 is connected to the second connection rod 132b of the first connection member 1321 or the second connection member 1322, and a fixed end is fixedly connected to the lower frame 110.

Still alternatively, in some possible embodiments, referring to fig. 2 and 4 in combination, the adjusting assemblies 132 include two sets, two sets of adjusting assemblies 132 are spaced apart from each other along the direction from the head of the bed 100 to the tail of the bed 100, and the fixed end of the telescopic cylinder 131 is connected to the second connecting rod 132b of one set of adjusting assemblies 132, and the telescopic end is connected to the second connecting rod 132b of the other set of adjusting assemblies 132.

Through setting up two sets of adjusting part 132, can guarantee the equilibrium of upper bedstead 120 in vertical rising or vertical decline in-process, avoid the slope of bed surface 121. In addition, the fixed end of the telescopic cylinder 131 is connected with the second connecting rod 132b in one group of adjusting components 132, and the telescopic end is connected with the second connecting rod 132b in the other group of adjusting components 132, so that the number of the telescopic cylinder 131 can be reduced, and the production cost of the bed 100 is reduced.

In some possible embodiments, referring to fig. 6, the upper frame 120 comprises a first bearing frame 122 and a plurality of bed plates 123 arranged on the first bearing frame 122, the plurality of bed plates 123 are arranged in sequence along the direction from the head of the bed 100 to the tail of the bed 100, the plurality of bed plates 123 form a bed surface 121, and the bed plate 123 near the head of the bed 100 and/or the bed plate 123 near the tail of the bed 100 are rotatably connected with the first bearing frame 122.

It should be noted that the direction in which the head of the bed 100 points toward the tail of the bed 100 is the direction indicated by the arrow X in fig. 6. The plurality of bed plates 123 means two or more bed plates 123.

Because the bed board 123 close to the head of the bed 100 and/or the bed board 123 close to the tail of the bed 100 is rotatably connected with the first bearing frame 122, the bed board 123 close to the head of the bed 100 can rotate relative to the first bearing frame 122, or the bed board 123 close to the tail of the bed 100 can rotate relative to the first bearing frame 122, so that a user can lie on the bed surface 121 in half, and the use experience of the user is improved.

In addition, the bed board 123 near the head of the bed 100 can rotate in the direction toward the tail of the bed 100 or away from the tail of the bed 100, so that the user can lie flat or half lie on the bed surface 121, and similarly, the bed board 123 near the tail of the bed 100 can rotate in the direction toward the head of the bed 100 or away from the head of the bed 100, so that the feet can be laid flat or lifted on the bed surface 121.

In some possible embodiments, referring to fig. 6, the first supporting frame 122 is further provided with a swing driving member 150, the swing driving member 150 is used for driving the bed plate 123 near the head of the bed 100 and/or the bed plate 123 near the tail of the bed 100 to swing upwards or downwards around a rotating shaft 124, and the rotating shaft 124 is perpendicular to the direction of the head of the bed 100 pointing to the tail of the bed 100 and is parallel to the bed plate 123.

Specifically, a bed plate 123 near the head of the bed 100 and a bed plate 123 near the tail of the bed 100 are both disposed on the first bearing frame 122 through the rotating shaft 124. Because the rotating shaft 124 is parallel to the bed board 123 and perpendicular to the direction of the head of the bed 100 pointing to the tail of the bed 100, the bed board 123 close to the head of the bed 100 can rotate in the direction facing or departing from the tail of the bed 100, or the bed board 123 close to the tail of the bed 100 rotates in the direction facing or departing from the head of the bed 100, so that a user can rest on the bed surface 121 in different postures, and the use experience of the user is improved.

In addition, by providing the swing driving member 150 (such as a cylinder, a motor, a screw structure, etc.), the bed plate 123 can be driven to rotate around the rotating shaft 124 when the swing driving member 150 is started, so as to change the setting state of the bed plate 123.

It should be noted that, when the bed 100 is the electric bed 100, the swing driving member 150 is an electric control driving member, and when the bed 100 is the manual bed 100, the swing driving member 150 is a manual driving member.

In some possible embodiments, referring to fig. 6, the lower frame 110 includes two layers of second carrying frames 112 stacked in a vertical direction, a support column 113 disposed between the two layers of second carrying frames 112, and a bed 100 foot disposed on the second carrying frame 112 facing away from the upper frame 120, the bed 100 foot being a support portion 111.

By arranging the two stacked second bearing frames 112, the supporting stability of the lower bed frame 110 can be improved, thereby ensuring the stability of the bed 100 and further improving the user experience.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A bed, comprising:

a lower frame including a support portion for contacting a support surface;

the bed comprises an upper bed frame, a lower bed frame and a middle bed frame, wherein the upper bed frame is provided with a bed surface for a user to lie; and

the driving assembly is arranged on the lower bed frame and connected with the upper bed frame, and the driving assembly is used for driving the upper bed frame to vertically lift or vertically descend relative to the lower bed frame so as to lift or descend the bed surface relative to the lower bed frame.

2. The bed of claim 1, wherein the upper frame is slidably disposed on the lower frame in a vertical direction.

3. The bed of claim 2, wherein the upper frame is slidably disposed on the lower frame in a vertical direction by a guide structure, the guide structure comprising a shaft sleeve and a guide shaft slidably inserted into the shaft sleeve, one of the shaft sleeve and the guide shaft being disposed on the upper frame and the other being disposed on the lower frame.

4. The bed of claim 3, wherein the guide structure comprises a plurality of guide structures evenly distributed around the perimeter edge of the upper frame.

5. The bed of any one of claims 1 to 4, wherein the driving assembly comprises a telescopic cylinder and an adjusting assembly, the adjusting assembly comprises a first connecting piece and a second connecting piece which are rotatably connected with each other, the first connecting piece is further rotatably connected with the upper bed frame, the second connecting piece is further rotatably connected with the lower bed frame, and the telescopic cylinder is used for driving the first connecting piece to rotate away from or towards the second connecting piece so as to vertically lift or vertically lower the upper bed frame relative to the supporting part.

6. The bed of claim 5, wherein the first and second connectors each comprise a first, second and third connecting rod connected in series, the first and third connecting rods being parallel to each other and perpendicular to the second connecting rod, the first of the first connecting rods and the first of the second connecting rods being pivotally connected, the first connecting rod further being pivotally connected to the upper frame, the third of the first connecting rods and the third of the second connecting rods being pivotally connected, the third connecting rod further being pivotally connected to the lower frame, and the telescopic cylinder being connected to either the second of the first connecting rods or the second of the second connecting rods.

7. The bed of claim 6, wherein the adjusting assemblies comprise two groups, the two groups of adjusting assemblies are arranged at intervals along the direction that the bed head points to the bed tail, the fixed end of the telescopic cylinder is connected with the second connecting rod in one group of adjusting assemblies, and the telescopic end is connected with the second connecting rod in the other group of adjusting assemblies.

8. A bed according to any one of claims 1-4, characterized in that said upper frame comprises a first carrying frame and a plurality of slats located on said first carrying frame, said slats being arranged in succession in a direction from the head of the bed towards the foot, said slats forming a deck, said slats being located close to said head of the bed and/or said slats being located close to said foot being rotatably connected to said first carrying frame.

9. The bed of claim 8, wherein the first supporting frame is further provided with a swing driving member for driving the bed board close to the bed head and/or the bed board close to the bed tail to swing upwards or downwards around a rotation shaft, and the rotation shaft is perpendicular to the direction of the bed head pointing to the bed tail and is parallel to the bed board.

10. The bed according to any one of claims 1-4, wherein the lower frame comprises two layers of second carrying frames stacked in a vertical direction, a support column disposed between the two layers of second carrying frames, and a foot disposed on the second carrying frame facing away from the upper frame, the foot being the support portion.

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