CN218551882U - Electric bed - Google Patents

Abstract

The utility model discloses an electric bed, which comprises a base frame, at least two groups of push-pull components and a plurality of bed boards, wherein the base frame is of a foldable structure and is used for supporting the bed boards; the push-pull assembly comprises a telescopic driving piece and a supporting frame, the telescopic driving piece can relatively move in a telescopic mode, one end of the telescopic driving piece is rotatably connected with the base frame, the other end of the telescopic driving piece is rotatably connected with the supporting frame, and the supporting frame is fixedly connected with the bottom of the bed board; the support frames are transversely arranged, the width of each support frame is smaller than that of the base frame, and the width of each support frame is not more than two thirds of the width of the corresponding bed plate. The utility model arranges the support frame with simple structure at the bottom of the bed board, so that the telescopic driving rod can directly push the support frame to realize the driving of the bed board, the transmission path is simple, and the support stability is good; and the support frame width is little, saves space, is favorable to promoting the lightweight degree of beddo.

Description

Electric bed

Technical Field

The utility model relates to an intelligence house technical field especially relates to an electric bed.

Background

At present, the electric beds in the market have larger volume and larger occupied space, which causes the transportation to need larger packages and larger space, thereby causing the transportation cost to be greatly increased; and, in order to guarantee the stability of beddo structure, often set up extra linkage support among the current beddo and drive the bed board, the structure of these linkage supports is comparatively complicated, and the transmission route is also comparatively complicated, leads to beddo overall structure comparatively complicated, and the linkage support still occupies very big weight, and the assembly is inconvenient, wastes time and energy, also influences user experience.

Therefore, an electric bed is needed, a complex linkage support is not needed, the bed board can be directly pushed to move, the structure is simple, the space is saved, meanwhile, the support stability is good, and the light weight degree is also high.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the above-mentioned prior art, the utility model provides an electric bed need not complicated linkage support, just can directly promote the bed board and remove, and simple structure saves space, and simultaneously, support stability is good, and lightweight degree is also high.

The utility model provides an electric bed, which comprises a base frame, at least two groups of push-pull assemblies and a plurality of bed boards, wherein the base frame is of a foldable structure and is used for supporting the bed boards, and the push-pull assemblies are used for pushing the bed boards to rotate relative to the base frame;

the base frame comprises a first frame and a second frame, the first frame and the second frame are arranged along the longitudinal direction of the electric bed, and the first frame and the second frame are rotatably arranged;

the push-pull assembly comprises a telescopic driving piece and a supporting frame, the telescopic driving piece can relatively move in a telescopic mode, one end of the telescopic driving piece is rotatably connected with the base frame, the other end of the telescopic driving piece is rotatably connected with the supporting frame, and the supporting frame is fixedly connected with the bottom of the bed board; the support frame is followed the transverse direction setting of beddo, the width of support frame is less than the width of basement frame, just the width of support frame is no longer than corresponding two-thirds of bed board width.

Furthermore, at least one reinforced connecting part is further arranged on the supporting frame and is longitudinally arranged, the reinforced connecting part is fixedly connected with the bottom of the bed board, and the reinforced connecting part is abutted against one end of the supporting frame.

Further, the width of the supporting frame is not more than half of the width of the bed board.

Furthermore, the push-pull assembly further comprises a driving motor, and the driving motor and one end of the telescopic driving piece are fixedly arranged and used for providing power for the reciprocating movement of the telescopic driving piece.

Furthermore, one side of the driving motor, which is far away from the telescopic driving piece, is rotatably connected with the supporting frame or the base frame.

Furthermore, the first frame and the second frame both comprise two transverse frames and two longitudinal frames, and the transverse frames and the longitudinal frames are connected in a head manner to form a square structure.

Furthermore, the first frame is further provided with a cross beam, the cross beam is positioned between the two transverse frames, and the telescopic driving piece is connected with the base frame through the cross beam and/or the transverse frames.

Furthermore, the first frame is further provided with longitudinal beams positioned between the two longitudinal frames, and two ends of each longitudinal beam are fixedly connected with the transverse frames respectively.

Further, at least one pre-assembly bed foot is arranged at the joint of the first frame and the second frame and used for synchronously rotating when the base frame is unfolded and folded.

Furthermore, the bed board comprises a back bed board, a fixing board and a leg bed board, the fixing board is fixedly arranged opposite to the base frame, and two sides of the fixing board are respectively rotatably connected with the back bed board and the leg bed board; the back bed board is connected with the base frame through at least one group of push-pull assemblies; the leg bed board is connected with the base frame through the push-pull assembly.

Furthermore, the back bed board comprises two split plates which are arranged in parallel, and each split plate is pushed by a corresponding group of push-pull assemblies.

Furthermore, the leg bed board comprises a first leg board and a second leg board, one side of the first leg board is rotatably connected with the fixed board, and the first leg board is connected with the base frame through a push-pull assembly; the other side of the first leg plate is rotatably connected with the second leg plate and is used for driving the second leg plate to move relative to the base frame through the first leg plate.

Furthermore, the electric bed is further provided with a plurality of side connecting rods, one ends of the side connecting rods are rotatably connected with the base frame, and the other ends of the side connecting rods are rotatably connected with the second leg plates.

Furthermore, the electric bed also comprises at least one reinforcing rib, and the reinforcing rib is fixedly arranged at the bottom of the bed board.

Implement the utility model discloses, following beneficial effect has:

1. the drive of bed board is realized through the support frame that promotes to be fixed in the bed board bottom to flexible actuating lever, and this support frame simple structure can save space, and weight is also little, also can satisfy the lightweight requirement of beddo for this beddo need not complicated linkage support when production, just can directly promote the bed board and remove, and the transmission route is simple direct, and simultaneously, support stability is good.

2. The utility model discloses set up multiple additional strengthening, including reinforced connection portion, longeron and strengthening rib, can show the intensity that promotes the beddo structure, good reliability also is favorable to promoting the support intensity of push-and-pull subassembly to the bed board.

3. The base frame of the utility model is of a folding structure, so that the whole electric bed can be folded after production, the occupied volume is small, the electric bed is convenient to package and transport, and the transport cost is greatly saved; in addition, the bottom of the electric bed is provided with the preassembled bed legs which can be folded along with the folding of the electric bed, the electric bed does not need to be installed by a user, the use is convenient and fast, and the experience of the user is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described, wherein the same components are denoted by the same reference numerals. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural view of an electric bed having two sets of push-pull assemblies according to a possible embodiment of the present invention;

FIG. 2 is a schematic structural view of the first frame of FIG. 1;

FIG. 3 is a schematic structural view of the second frame of FIG. 1;

fig. 4 is a schematic structural view of an electric bed with three sets of push-pull assemblies according to another possible embodiment of the present invention;

fig. 5 is a schematic structural diagram of the first frame in fig. 4.

Wherein the reference numerals in the figures correspond to: 1-base frame, 11-first frame, 12-second frame, 110-transverse frame, 111-longitudinal frame, 112-cross beam, 113-longitudinal beam, 2-push-pull assembly, 21-support frame, 22-reinforced connection part, 23-telescopic driving part, 24-driving motor, 3-bed plate, 31-back bed plate, 310-split plate, 32-fixed plate, 320-back fixed plate, 321-leg fixed plate, 33-leg bed plate, 330-first leg plate, 331-second leg plate, 4-side connecting rod, 5-reinforcing rib, 6-preassembled connecting seat, and 7-preassembled connecting part.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the indicated device or structure must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be construed as limiting the present invention; also, the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

The present embodiment provides an electric bed, as shown in fig. 1 to 5 of the specification, the electric bed includes a base frame 1, two sets of push-pull assemblies 2 and a plurality of bed boards 3, wherein the push-pull assemblies 2 are used for pushing the bed boards 3 to rotate relative to the base frame 1; as shown in fig. 1, the push-pull assembly 2 includes a telescopic driving member 23 and a supporting frame 21, one end of the telescopic driving member 23 is rotatably connected to the base frame 1, and the telescopic driving member 23 itself can relatively move telescopically, and the other end of the telescopic driving member 23 is rotatably connected to the supporting frame 21, so that when the telescopic driving member 23 is telescopic, the supporting frame 21 connected to the telescopic driving member 23 can be pushed to move, and the supporting frame 21 is fixedly disposed at the bottom of the bed plate 3, so that when the supporting frame 21 moves, the corresponding bed plate 3 can be driven to synchronously move, and with respect to the base frame 1, it is represented that the bed plate 3 rotates along the transverse direction of the base frame 1 as an axis, when the bed plate 3 rotates upward, the bed plate 3 is in a lifting state, and when the bed plate 3 rotates downward, the bed plate 3 can reach a horizontal state, thereby driving the bed plate 3; in this specification, the lateral direction and the longitudinal direction are defined as directions in a horizontal plane, the lateral direction represents the left-right direction of the bed plate 3, that is, the width direction of the electric bed, and the longitudinal direction represents the front-back direction of the bed plate 3, that is, the length direction of the electric bed.

In addition, the support frame 21 is transversely arranged, so that the bed plate 3 can be supported to play a role in improving the structural support strength of the bed plate 3, and the support frame is also conveniently connected with the telescopic driving piece 23 in a rotating manner to enhance the connection reliability; in one possible embodiment of the present specification, the width of the supporting frame 21 in the transverse direction is smaller than the width of the base frame 1 and does not exceed two thirds of the width of the corresponding bed plate 3, the structure is simple, the material processing is simple and convenient, the volume and the weight are small, the transmission efficiency can be improved while the structural strength and the stability are ensured, a large amount of material and material cost are saved, and the degree of light weight is improved; in addition, compare with the direct mode of being connected with bed board 3 of traditional driving piece, set up simple and easy support frame 21 and can avoid slotting or opening at the structure of bed board 3, and then avoid the reduction of structural strength and the reduction of use comfort that leads to because of the slotting, guarantee that the user can obtain more comfortable experience.

Specifically, as shown in fig. 1 of the specification, the supporting frame 21 is further provided with two reinforcing connecting portions 22, and the reinforcing connecting portions 22 are longitudinally arranged, so that one surface of each reinforcing connecting member 22 is fixedly connected with the bottom of the bed plate 3, and the other surface of each reinforcing connecting member is abutted against and fixed to one end of the supporting frame 21; in this embodiment, the cross section of the reinforcing connecting member 22 is L-shaped, so that the reinforcing connecting member 22 has a larger contact area with both the support frame 21 and the bed plate 3, and the stability and reliability of connection and fixation are improved.

Preferably, in a possible embodiment of the present description, the width of the support frame 21 can be chosen not to exceed half the width of the bed plate 3, saving more material and its costs.

Specifically, as shown in fig. 1, the push-pull assembly 2 further includes a driving motor 24, and the driving motor 24 is fixedly connected to one end of the telescopic driving member 23, and is used for providing power for the reciprocating movement of the telescopic driving member 23, so that the driving mode is simple, and the transmission efficiency is high.

Specifically, the position of the driving motor 24 may be selected as one end of the telescopic driving member 23 close to the supporting frame 21, that is, the driving motor 24 is located between the supporting frame 21 and the telescopic driving member 23, the driving motor 24 is rotatably connected to the supporting frame 21, and the driving motor 24 is drivingly connected to the telescopic driving member 23, and with reference to the direction shown in fig. 1, the driving motor 24 is located in the group of push-pull assemblies 2 on the left side in the drawing, the direction of the power output by the driving motor 24 is along the bottom of the telescopic driving member 23 in an inclined manner, and because the other end of the telescopic driving member 23 is rotatably connected to the stationary base frame 1, the power output by the driving motor 24 is acted on the base frame 1 and then receives a reaction force, so as to reversely drive the supporting frame 21 to lift upward; similarly, the setting position of the driving motor 24 can also be selected as the end of the telescopic driving member 23 connected to the base frame 1, taking the group of push-pull assemblies 2 on the right side in fig. 1 as an example, the driving motor 24 outputs power, so that the end of the telescopic driving member 23 away from the driving motor 24 can drive the supporting frame 21 and the bed plate 3 to move upwards, thereby realizing lifting, being convenient to use, and having low energy consumption of the driving motor 24; in a possible embodiment of the present specification, the driving motors 24 in the multiple sets of push-pull assemblies 2 can be selected from different combinations of setting positions, so as to meet the requirements of different electric beds and expand the application range.

Specifically, as shown in fig. 1, the bed plate 3 includes a back bed plate 31, a fixing plate 32 and a leg bed plate 33, wherein the fixing plate 32 is fixedly disposed opposite to the base frame 1, and two sides of the fixing plate 32 are rotatably connected to the back bed plate 31 and the leg bed plate 33, respectively, that is, the fixing plate 32 is located between the back bed plate 31 and the leg bed plate 33 in the longitudinal direction; the back bed board is connected with the base frame 1 through a group of push-pull assemblies 2, so that the back bed board 31 is pushed to rotate around the fixing plate 32; the leg plate 33 includes a first leg plate 330 and a second leg plate 331, one side of the first leg plate 330 is rotatably connected to the fixed plate 32, and the bottom of the first leg plate 330 is also rotatably connected to the base frame 1 through a set of push-pull assemblies 2, so as to push the first leg plate 330 to rotate around the fixed plate 32; the other side of the first leg plate 330 is also connected to the second leg plate 331 in a rotatable manner, so that the second leg plate 331 can be driven to rotate relative to the base frame 1 when the first leg plate 330 rotates.

Specifically, as shown in fig. 1, the base frame 1 is a foldable structure, and includes a first frame 11 and a second frame 12 arranged along a longitudinal direction, and the first frame 11 and the second frame 12 are relatively rotatably arranged along a transverse direction, so that the first frame 11 and the second frame 12 can be folded together, and the overall volume after folding is small, which is convenient for taking, packaging and transporting; in this embodiment, as shown in fig. 1, two folding members may be selectively disposed at the joint of the first frame 11 and the second frame 12, so that the second frame 12 and the first frame 11 are rotatably connected, and are flexibly rotated during folding, not easily interfered with each other, flexibly folded, and conveniently folded and unfolded in a labor-saving manner.

Specifically, as shown in fig. 1 and fig. 4 of the specification, in one possible embodiment of the specification, a pair of pre-installed connecting pieces 7 is further disposed at a joint of the first frame 11 and the second frame 12, the pre-installed connecting pieces 7 are detachably disposed, one end of each pre-installed connecting piece is used for being fixedly connected with the first frame 11, and the other end of each pre-installed connecting piece is used for being fixedly connected with the second frame 12, so that load at the joint of the first frame 11 and the second frame 12 after being unfolded is relieved, durability and service life of the rotary joint between the first frame 11 and the second frame 12 are improved, and maintenance cost is reduced; in a possible embodiment of the present description, one end of the pre-connecting member 7 may also be disposed on the first frame 11 or the second frame 12, while the other end is a free end for fixedly connecting with the other half of the base frame 1 after unfolding, so that the user can assemble the pre-connecting member by himself, the assembly is simple, and the increase of the folding volume and the corresponding transportation cost can be avoided.

Specifically, as shown in fig. 1, in one possible embodiment of the present disclosure, two pre-assembled bed legs may be optionally disposed at the joint of the first frame 11 and the second frame 12, and the pre-assembled bed legs are connected to the base frame 1 through a pre-assembled connecting seat 6, so that the pre-assembled bed legs can be completely installed in the production and assembly process without manual installation by a user, which is more convenient to use and saves time and labor; in addition, in other embodiments, the pre-assembly bed leg can synchronously rotate along with the folding or unfolding of the base frame 1, so that additional space is not occupied, the packaging space is saved, the convenience of transportation is ensured, and the transportation cost is also saved.

And corresponding to the foldable structure of the base frame 1, the fixing plate 32 may be selectively provided as a back fixing plate 320 and a leg fixing plate 321, wherein the back fixing plate 320 is used for being rotatably connected with the back bed plate 31 and being folded synchronously with the back bed plate 31 when being folded; and leg fixed plate 321 is used for being connected with leg bed board 33 is rotated to fold with leg bed board 33 is synchronous when folding, make fixed plate 32 also can the adaptability fold and do not occupy extra space, be convenient for pack and transportation.

Specifically, as shown in fig. 2 and fig. 3 of the specification, the first frame 11 and the second frame 12 each include two transverse frames 110 and two longitudinal frames 111, and the transverse frames 110 and the longitudinal frames 111 alternate with each other and are connected end to form a square structure; in this embodiment, in order to facilitate connection and folding, a transverse frame 110 close to the second frame 12 in the first frame 11 is set as a connection frame, and similarly, a transverse frame 110 close to the first frame 11 in the second frame 12 can also be selected as a connection frame, and then the structure of the connection frame can be selected as a part with an L-shaped cross section, which is simpler in structure, and is beneficial to light weight, and meanwhile, the occupied space is smaller, and mutual obstruction which may occur in the folding and unfolding processes can be further avoided, so that the electric bed is ensured to be stable and smooth when being folded and unfolded, and the convenience in use of the user is good.

Specifically, as shown in fig. 2, a cross beam 112 is further disposed in the first frame 11, the cross beam 112 is disposed between two transverse frames 110 and parallel to the transverse frames 110, and one end of the telescopic driving member 23 connected to the base frame 1 is connected to the cross beam 112; in this embodiment, the length of back bed board 31 on longitudinal direction is longer, if flexible driving piece 23 is connected with horizontal frame 110, can lead to the stroke overlength, increase the support load to the beddo structure, and flexible driving piece 23 is connected with crossbeam 112 and can shortens the stroke greatly, obtain great turned angle with less stroke, be convenient for rotate more laborsavingly, reduce the pressure to basement frame 1, push-and-pull subassembly 2 structure, and then alleviate whole support load, also can save driving motor 24's electric energy loss.

In addition, in one possible embodiment of the present disclosure, as shown in fig. 1, the distance between the supporting frame 21 at the bottom of the first leg plate 330 and the transverse frame 110 is relatively short, and one end of the telescopic driving member 23 connected to the base frame 1 can be directly connected to the transverse frame 10, so that an additional cross beam 112 is not required to be added, and the light weight is good.

Specifically, as shown in fig. 1 and 4, the electric bed is further provided with a plurality of side connecting rods 4, the shape of the side connecting rods 4 is not particularly limited in this specification, and any side connecting rods 4 capable of performing the same function may be within the protection scope of this specification; in this embodiment, two side connecting rods 4 are provided, and the two side connecting rods 4 are symmetrically arranged on two sides of the second frame 12, so as to ensure the stability and the left-right balance of the support; one end of the side link 4 is rotatably connected to the second frame 12, and the other end is rotatably connected to the second leg plate 331, so that the side link 4 can play a role of enhancing the supporting rigidity of the second leg plate 331 on the one hand, and can rotate in an auxiliary manner along with the rotation of the second leg plate 331 on the other hand, i.e., the position and angle of the second leg plate 331 are limited while the rotation flexibility is not affected, the second leg plate 331 is prevented from falling downwards in a lifting state, and the use comfort and the use safety are improved.

In particular, in a possible embodiment of the present specification, the electric bed further includes at least one reinforcing rib 5 for enhancing the structural strength of the bed plate 3, so as to achieve better stability; in the present embodiment, as shown in fig. 1, the electric bed is provided with two reinforcing ribs 5, wherein one reinforcing rib 5 is provided at the bottom of the second leg plate 331, so that the structural strength of the second leg plate 331 can be enhanced; another strengthening rib 5 sets up in back bed board 31 bottom, can promote the support intensity to user's shoulder neck position greatly, prolongs the life of back bed board 31 to the life of whole beddo is prolonged, and the durability is good.

Specifically, to the utility model provides a rotation connected mode can select the hinge formula to connect, can select the bolt formula to connect, also can select the rotation type to connect, the utility model discloses do not specifically prescribe a limit to this, according to the actual demand of isostructure not, can select different rotation connected mode to make up, as long as can realize rotating the structure of connecting action and all can the utility model discloses a within the protection scope, it is high to rotate the flexibility ratio, and extensive applicability is general.

Furthermore, the utility model provides an beddo not only can be applied to field of furniture, can also be applied to the medical instrument field, including various medical beds, the suitability is high, and the comfort level is good.

According to the present embodiment, the utility model discloses following beneficial effect has:

1. the drive of bed board is realized through the support frame that promotes to be fixed in the bed board bottom to flexible actuating lever, and this support frame simple structure can save space, and weight is also little, also can satisfy the lightweight requirement of beddo for this beddo need not complicated linkage support when production, just can directly promote the bed board and remove, and the transmission route is simple direct, and simultaneously, support stability is good.

2. The utility model discloses set up multiple additional strengthening, including reinforced connection portion, longeron and strengthening rib, can show the intensity that promotes the beddo structure, good reliability also is favorable to promoting the support intensity of push-and-pull subassembly to the bed board.

3. The base frame of the utility model is of a folding structure, so that the whole electric bed can be folded after production, the occupied volume is small, the electric bed is convenient to package and transport, and the transport cost is greatly saved; in addition, beddo bottom sets up pre-installation bed foot, can fold along with beddo's folding, need not the user installation, and convenient to use is swift, promotes user experience impression.

4. The back bed board can select to adopt split type structure, can lift respectively or simultaneously and descend two components of a whole that can function independently frames according to actual demand, satisfies different users' demand, and the comfort level is high, can also save the electric energy.

Example 2

The difference between the present embodiment and embodiment 1 is that the electric bed includes three sets of push-pull assemblies 2, as shown in fig. 4 in the specification, the back bed plate 31 can be selectively set to include two split plates 310 arranged in parallel, and then a set of push-pull assemblies 2 is correspondingly arranged below each split plate 310, that is, each split plate 310 is driven by a corresponding set of push-pull assemblies 2, when in use, a user can control two driving motors 24 simultaneously according to actual requirements, so that the two split plates 310 are lifted or lowered simultaneously; two driving motors 24 below the back bed plate 31 can be controlled respectively, so that one split plate 310 is lifted while the other split plate 310 is not moved, the mode is diversified, and the applicability is good.

Specifically, the three sets of push-pull assemblies 2 include three support frames 21, wherein one support frame 21 is respectively disposed at the bottom of each split plate 310, and the width of each support frame 21 does not exceed two thirds of the width of the corresponding split plate 310; in other possible embodiments of the present disclosure, the width of the supporting frame 21 may also be less than half of the width of the corresponding split plate 310, so as to further reduce the volume and weight of the supporting frame 21, save more materials and cost, and achieve better light weight.

Specifically, as shown in fig. 5, a longitudinal beam 113 is further disposed in the first frame 11, the longitudinal beam 113 is located between two longitudinal side frames 111, and two ends of the longitudinal beam 113 are respectively fixedly connected to two transverse side frames 110, so that the structural strength of the first frame 11 can be further improved, and the supporting strength and the supporting stability of the cross beam 112 for the bed plate 3 can also be improved.

Specifically, as shown in fig. 4, only one reinforcing rib 5 can be selected to be arranged on the electric bed, so that the supporting strength is ensured, and meanwhile, the raw material cost is saved; the reinforcing rib 5 is positioned at the bottom of the second leg plate 331, which can enhance the structural strength of the second leg plate 331 and prolong the service life of the second leg plate 331; in other possible embodiments of the present description, the number of the reinforcing ribs 5 can be three, four or more, so as to meet different requirements of different electric beds on structural strength and service life, and the application range is wide.

While the invention has been described with respect to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the invention as defined in the claims.

Claims (14)

1. An electric bed is characterized by comprising a base frame (1), at least two groups of push-pull assemblies (2) and a plurality of bed boards (3), wherein the base frame (1) is of a foldable structure and is used for supporting the bed boards (3), and the push-pull assemblies (2) are used for pushing the bed boards (3) to rotate relative to the base frame (1);

the base frame (1) comprises a first frame (11) and a second frame (12), the first frame (11) and the second frame (12) are arranged along the longitudinal direction of the electric bed, and the first frame (11) and the second frame (12) are rotatably arranged;

the push-pull assembly (2) comprises a telescopic driving part (23) and a supporting frame (21), the telescopic driving part (23) can relatively move in a telescopic mode, one end of the telescopic driving part (23) is rotatably connected with the base frame (1), the other end of the telescopic driving part (23) is rotatably connected with the supporting frame (21), and the supporting frame (21) is fixedly connected with the bottom of the bed board (3); the supporting frame (21) is arranged along the transverse direction of the electric bed, the width of the supporting frame (21) is smaller than that of the base frame (1), and the width of the supporting frame (21) is not more than two thirds of the width of the bed board (3).

2. An electric bed as claimed in claim 1, characterized in that the support frame (21) is further provided with at least one reinforcing connecting portion (22), the reinforcing connecting portion (22) is longitudinally arranged, the reinforcing connecting portion (22) is fixedly connected with the bottom of the bed board (3), and the reinforcing connecting portion (22) is further abutted against one end of the support frame (21).

3. An electric bed according to claim 1, characterized in that the width of the support frame (21) does not exceed half the width of the bed plate (3).

4. An electric bed according to claim 1, characterized in that the push-pull assembly (2) further comprises a drive motor (24), the drive motor (24) being fixedly arranged with one end of the telescopic driving member (23) for powering the reciprocating movement of the telescopic driving member (23).

5. A bed-ridden electric bed according to claim 4, characterised in that the side of the drive motor (24) remote from the telescopic drive member (23) is rotatably connected to the support frame (21) or the base frame (1).

6. An electric bed according to claim 1, characterized in that said first frame (11) and said second frame (12) each comprise two transverse side frames (110) and two longitudinal side frames (111), said transverse side frames (110) and said longitudinal side frames (111) being joined end to form a square-shaped structure.

7. An electric bed according to claim 6, characterized in that the first frame (11) is further provided with a cross beam (112), the cross beam (112) being located between the two lateral side frames (110), the telescopic drive (23) being connected to the base frame (1) via the cross beam (112) and/or the lateral side frames (110).

8. An electric bed as claimed in claim 6, characterized in that said first frame (11) is further provided with a longitudinal beam (113) between said two longitudinal side frames (111), said longitudinal beam (113) being fixedly connected at each of its two ends to said transverse side frame (110).

9. An electric bed according to claim 1, characterized in that at the connection of the first frame (11) and the second frame (12) there is provided at least one pre-assembled bed leg for simultaneous rotation when the base frame (1) is unfolded and folded.

10. An electric bed according to claim 1, characterized in that the bed board (3) comprises a back bed board (31), a fixing plate (32) and a leg bed board (33), the fixing plate (32) is fixedly arranged opposite to the base frame (1), and two sides of the fixing plate (32) are respectively rotatably connected with the back bed board (31) and the leg bed board (33); the back bed board (31) is connected with the base frame (1) through at least one group of push-pull assemblies (2); the leg bed plate (33) is connected with the base frame (1) through the push-pull assembly (2).

11. An electric bed as claimed in claim 10, characterised in that said back bed plate (31) comprises two juxtaposed separate plates (310), each of said separate plates (310) being pushed by a corresponding set of said push-pull assemblies (2).

12. An electric bed according to claim 10, characterized in that said leg plate (33) comprises a first leg plate (330) and a second leg plate (331), one side of said first leg plate (330) is rotatably connected to said fixed plate (32), said first leg plate (330) is connected to said base frame (1) by means of a push-pull assembly (2); the other side of the first leg plate (330) is rotatably connected with the second leg plate (331) and is used for driving the second leg plate (331) to move relative to the base frame (1) through the first leg plate (330).

13. A bed-within-bed according to claim 12, wherein a plurality of side links (4) are provided, one end of the side links (4) being pivotally connected to the base frame (1) and the other end of the side links (4) being pivotally connected to the second leg plate (331).

14. An electric bed according to claim 1, characterized in that said electric bed further comprises at least one reinforcing rib (5), said reinforcing rib (5) is fixedly arranged at the bottom of said bed plate (3).

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