Foldable sofa bed
By designing a foldable inflatable sofa bed, utilizing wave-shaped docking sides and rotating connecting components, the problem of large footprint after sofa bed conversion is solved, achieving stability and flexible use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-31
AI Technical Summary
Existing sofa beds take up a lot of space and are inconvenient to use after being converted into sofas.
The first and second bed frames are designed as inflatable structures with internal air bladders. Through the interlocking of the wavy mating sides and the combination of rotating connecting components, the first and second bed frames can be spliced together to form a cuboid structure, providing seat and back cushion functions in sofa mode, thus reducing the floor space occupied.
It improves the stability and performance of bed frame assembly, enables flexible conversion between bed and sofa, reduces the floor space occupied by sofa, and enhances comfort and safety.
Smart Images
Figure CN224055642U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of inflatable sofa bed technology, and more particularly to a foldable sofa bed. Background Technology
[0002] As people's living spaces become increasingly compact, higher demands are being placed on the multifunctionality and space utilization of furniture. Sofa beds, as a type of furniture that combines the functions of a sofa and a bed, have received widespread attention. However, existing sofa beds, after being converted from beds to sofas, occupy a large area and are inconvenient to use. Utility Model Content
[0003] To address the issue of large floor space occupied by traditional sofa beds when converted into sofas, this utility model provides a foldable sofa bed, comprising: a first bed frame, a second bed frame, and a connecting assembly;
[0004] Both the first bed and the second bed are inflatable structures with internal airbags;
[0005] The first bed body is a square structure with a first docking side protruding on one side along its length. The first docking side is wavy along the length of the first bed body. The second bed body is a square structure with a second docking side recessed on one side along its length. The second docking side is wavy along the length of the second bed body. The second docking side matches the first docking side. The first bed body and the second bed body are spliced together to form a cuboid structure.
[0006] The connecting components are connected to the first bed body and the second bed body respectively. The second bed body overlaps the first bed body. The corners of the first bed body are aligned with the corners of the second bed body. There is a space between the first docking side and the second docking side.
[0007] In one possible implementation, the first docking side protrudes relative to the first bed body and includes two or more arc-shaped structures;
[0008] The protruding direction of the first opposite side is perpendicular to the length direction of the first bed body.
[0009] In one possible implementation, the second docking side is recessed relative to the second bed body, including two or more arc-shaped structures, and the number of recesses on the second docking side corresponds one-to-one with the number of protrusions on the first docking side.
[0010] The direction of the second docking side recess is perpendicular to the length direction of the second bed body.
[0011] In one possible implementation, there are two connecting components, located at opposite ends of the length of the first bed and the second bed, respectively.
[0012] In one possible implementation, both ends of the first bed and the second bed are provided with fasteners along their length.
[0013] The connecting component is long and narrow, with rotating parts at both ends that match the buckle;
[0014] The rotating part is fixed to and rotatably connected to the buckle.
[0015] In one possible implementation, the position of the buckle on the second bed body in the thickness direction is lower than the position of the buckle on the first bed body in the thickness direction.
[0016] In one possible implementation, the fastener is adjacent to the first mating side of the first bed body and the second mating side of the second bed body, respectively.
[0017] In one possible implementation, the length of the second bed body is equal to the length of the first bed body, the width of the second bed body is equal to the width of the first bed body, and the thickness of the second bed body is equal to the thickness of the first bed body.
[0018] In one possible implementation, the first docking side is located at the middle position along the length of the first bed.
[0019] In one possible implementation, the exterior of the first bed and the second bed is covered with a cloth cover.
[0020] The beneficial effects of the foldable sofa bed according to this application embodiment are as follows: The wave-shaped mating design of the first and second bed frames improves the stability after assembly through concave-convex interlocking, preventing relative displacement of the bed frames during use. Furthermore, by rotating the connecting assembly, the second bed frame is placed on top of the first bed frame, aligning the corners of the second and first bed frames. This creates space between the top of the first mating side and the second mating side, allowing it to be used as a sofa. Therefore, the first mating side of the first bed frame serves as the seat cushion, and the second mating side of the second bed frame serves as the backrest cushion, enabling conversion between bed and sofa use and greatly improving usability. In this way, by overlapping the first and second bed frames, the floor space occupied by the sofa is significantly reduced.
[0021] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description
[0022] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.
[0023] Figure 1 A side view of a foldable sofa bed according to an embodiment of this application is shown.
[0024] Figure 2 A top view of a foldable sofa bed according to an embodiment of this application is shown.
[0025] Figure 3 A top view of the bed frame of a foldable sofa bed according to an embodiment of this application is shown;
[0026] Figure 4 This is a side view of the foldable sofa bed according to an embodiment of this application. Detailed Implementation
[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0028] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0031] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.
[0032] like Figures 1-4 As shown, the foldable sofa bed of this application embodiment includes: a first bed body 100, a second bed body 200, and a connecting assembly 300. Both the first bed body 100 and the second bed body 200 are inflatable structures with internal airbags. The first bed body 100 has a square structure, with a first mating side 110 protruding on one side along its length direction. The first mating side 110 is wavy along the length direction of the first bed body 100. The second bed body 200 has a square structure, with a second mating side 210 recessed on one side along its length direction. 10 is wavy along the length of the second bed body 200. The second docking side 210 matches the first docking side 110. The first bed body 100 and the second bed body 200 are spliced together to form a cuboid structure. The connecting component 300 is connected to the first bed body 100 and the second bed body 200 respectively. The second bed body 200 overlaps the first bed body 100. The corners of the first bed body 100 are aligned with the corners of the second bed body 200. There is a space between the first docking side 110 and the second docking side 210.
[0033] In this specific embodiment, the wave-shaped mating side design of the first bed frame 100 and the second bed frame 200 improves the stability after splicing through a concave-convex fit, preventing relative displacement of the bed frames during use. Furthermore, by rotating the connecting assembly 300, the second bed frame 200 is placed on the first bed frame 100, aligning the corners of the second bed frame 200 with the first bed frame 100. This creates a space between the top of the first mating side 110 and the second mating side 210, which can be used as a sofa. Therefore, the first mating side 110 of the first bed frame 100 serves as the seat cushion, and the second mating side 210 of the second bed frame 200 serves as the backrest cushion, enabling conversion between bed and sofa use and greatly improving usability. Thus, by overlapping the first bed frame 100 and the second bed frame 200, the floor space occupied by the sofa is significantly reduced.
[0034] In one specific embodiment, the first mating side 110 protrudes relative to the first bed body 100 and includes two or more arc-shaped structures. The protruding direction of the first mating side is perpendicular to the length direction of the first bed body 100. The second mating side 210 is recessed relative to the second bed body 200 and includes two or more arc-shaped structures. The number of recesses on the second mating side 210 corresponds one-to-one with the number of protrusions on the first mating side 110. The recessing direction of the second mating side is perpendicular to the length direction of the second bed body 200. The arc-shaped structures enhance the tightness of the first bed body 100 and the second bed body 200 when they are joined, improve the stability and reliability of the joint, reduce gaps at the joint, and enhance the comfort of use. Furthermore, the protruding first mating side 110 provides the seat cushion position of the sofa, and the recessed second mating side 210 provides the backrest position. Through the cooperation of the first mating side 110 and the second mating side 210, the basic functions of the sofa are realized.
[0035] Furthermore, in this specific embodiment, the first mating side 110 is located at the middle position along the length of the first bed body 100, while the two ends along the length of the first bed body 100 and the second bed body 200 provide armrest functions for the sofa. In addition, since the first mating side 110 and the second mating side 210 are matched and both are wavy, the sofa is spaced at a preset distance, dividing the sofa into more than two seat cushion positions.
[0036] In one specific embodiment, there are two connecting components 300, located at opposite ends of the length of the first bed frame 100 and the second bed frame 200, respectively. The two connecting components 300 provide a reliable connection method, enhancing the overall stability of the sofa bed after assembly and ensuring its safety during use.
[0037] Furthermore, in this specific embodiment, the connecting component 300 is used not only to fix the first bed frame 100 and the second bed frame 200 when they are assembled into a bed, but also to fix them when they are assembled into a sofa. Specifically, the connection positions of the connecting component 300 with the first bed frame 100 and the second bed frame 200 are close to the first docking side 110 and the second docking side 210, respectively. This allows the connecting component 300 to pull the second bed frame 200 relative to the first bed frame 100 toward the first docking side 110 when the user sits on the first docking side 110 of the first bed frame 100 and leans against the second docking side 210 of the second bed frame 200, thus achieving stability when the first bed frame 100 and the second bed frame 200 are assembled into a sofa.
[0038] In one specific embodiment, both ends of the first bed frame 100 and the second bed frame 200 are provided with latches along their length. The connecting component 300 is elongated and has rotating parts at both ends that match the latches. The rotating parts are fixed to and rotatably connected to the latches. The connection method of the latches and rotating parts is convenient, quick, and easy to operate, improving the assembly and disassembly efficiency of the sofa bed. At the same time, this connection method can adapt to different states of the bed frame, ensuring the stability and reliability of the connection.
[0039] In one specific embodiment, the buckle on the second bed 200 is positioned lower in the thickness direction than the buckle on the first bed 100, and the distance between the buckle on the second bed 200 and the second mating side 210 is greater than the distance between the buckle on the first bed 100 and the first mating side 110. Since the second bed 200 needs to be rotated relative to the first bed 100 to be above the first bed 100, and the distance between the buckle on the second bed 200 and the second mating side 210 is greater than the distance between the buckle on the first bed 100 and the first mating side 110, the first bed 100 can apply a force diagonally downward toward the first mating side 110 relative to the second bed 200, further improving the connection stability between the second bed 200 and the first bed 100 in sofa mode.
[0040] The fasteners are located near the first docking side 110 of the first bed body 100 and the second docking side 210 of the second bed body 200.
[0041] In one specific embodiment, the length of the second bed body 200 is equal to the length of the first bed body 100, the width of the second bed body 200 is equal to the width of the first bed body 100, and the thickness of the second bed body 200 is equal to the thickness of the first bed body 100.
[0042] In one specific embodiment, the exterior of the first bed body 100 and the second bed body 200 are covered with cloth covers.
[0043] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A foldable sofa bed, characterized in that, The utility model relates to a long rectangular bed body, which comprises a first bed body, a second bed body and a connecting assembly. The first bed body and the second bed body are both inflatable structures with air bags inside. The first bed body is a square structure, and one side in the length direction has a first butt joint side which is wavy along the length direction of the first bed body. The second bed body is also a square structure, and one side in the length direction has a second butt joint side which is wavy along the length direction of the second bed body. The second butt joint side matches the first butt joint side.
2. The foldable sofa-bed according to claim 1, characterized in that, The connecting assembly is connected to the first bed body and the second bed body respectively. The second bed body is overlapped on the first bed body, and the corner positions of the first bed body and the second bed body are aligned.
3. The foldable sofa-bed according to claim 2, characterized in that, The first butt joint side has two or more arc structures. The protruding direction of the first butt joint side is perpendicular to the length direction of the first bed body.
4. The foldable sofa-bed according to claim 1, characterized in that, The second butt joint side has two or more arc structures, and the number of the concave structures of the second butt joint side corresponds to the number of the protruding structures of the first butt joint side.
5. The foldable sofa-bed according to claim 4, characterized in that, The concave direction of the second butt joint side is perpendicular to the length direction of the second bed body. The connecting assembly has two parts, which are located at the two ends of the length direction of the first bed body and the second bed body respectively. The first bed body and the second bed body are both provided with buckles at the two ends of the length direction.
6. The foldable sofa-bed according to claim 5, characterized in that, The connecting assembly is in the shape of a long strip, and both ends are provided with rotating parts which match the buckles.
7. The foldable sofa-bed according to claim 6, characterized in that, The rotating parts are fixed and rotatable with the buckles.
8. The foldable sofa-bed according to claim 1, characterized in that, The position of the buckle of the second bed body in the thickness direction is lower than that of the buckle of the first bed body.
9. The foldable sofa-bed according to claim 1, characterized in that, The buckle is adjacent to the first butt joint side of the first bed body and the second butt joint side of the second bed body respectively.
10. The foldable sofa-bed according to claim 1, characterized in that, The length of the second bed body is equal to that of the first bed body, the width of the second bed body is equal to that of the first bed body, and the thickness of the second bed body is equal to that of the first bed body. The first butt joint side is located at the middle position of the length direction of the first bed body. The first bed body and the second bed body are both covered with cloth covers.