A deformable sofa bed

Abstract

A deformable sofa bed comprises a main body and armrests arranged at both ends of the main body, a backrest plate is arranged between the two armrests, and the main body, the armrests and the backrest plate are detachably arranged. The main body comprises a backrest, a first seat cushion and a second seat cushion which are foldable and connected. The first seat cushion and the second seat cushion are folded to form a sofa seat cushion, and the backrest abuts against the backrest plate. The backrest, the first seat cushion and the second seat cushion are unfolded to form a mattress. The backrest, the first seat cushion and the second seat cushion are all spring packs. Compared with the prior art, when the sofa is to be changed into a bed, only the backrest needs to be pulled to unfold the backrest, the first seat cushion and the second seat cushion to form the state of the bed, so that the deformation is convenient and fast, and complicated operation is not needed. Meanwhile, since the backrest, the first seat cushion and the second seat cushion are all spring packs, the spring packs can be compressed during transportation, thereby facilitating the transportation of the sofa bed and improving the transportation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sofa technology, specifically to a deformable sofa bed. Background Technology

[0002] Sofas have become a very common type of furniture in people's daily lives. Compared to wooden chairs, sofas offer more comfort. Among existing sofas, the most widely used ones generally consist of a seat cushion, backrest, armrests, and frame. The seat cushion and backrest are fixed to the frame, limiting their use to only one position and greatly restricting their application. Therefore, using them as a bed would be extremely inconvenient.

[0003] To address the aforementioned issues, Chinese Patent Application No. 201510453307.1 discloses a deformable sofa bed. This deformable sofa bed includes a base frame, a seat cushion, a backrest, a first connecting rod, a second connecting rod, a fixed support, and a sliding support. Multiple guide rails are installed parallel to each other on the fixed support, and multiple sliders that cooperate with the guide rails are installed on the sliding support. The fixed support is fixedly installed at the top of the base frame, and the sliding support is fixedly installed at the bottom of the seat cushion. The first connecting rod is fixedly installed on the backrest via a pin, and is movably connected to the sliding support via a first pin. The second connecting rod is fixedly installed on the fixed support via a second pin, and the first and second connecting rods are movably connected via a third pin. Chinese Patent Application No. 201210136185.X discloses a deformable sofa bed. The deformable sofa bed disclosed above includes a sofa body, a cushion, a bottom support, movable round rods, movable pads, and an inclined support. The sofa body has a side sofa on one side, and a cushion is placed on the sofa body. A side panel is placed on the side sofa. The bottom side of the sofa body has a cavity. The bottom support is installed on the bottom side of the sofa body. At least two movable round rods are installed side by side in the cavity below the sofa body. One end of the bottom support rests on the movable round rods, and the other end of the bottom support has a support plate. Rollers are installed at the bottom of the bottom support. The movable pads are installed on the bottom support through the inclined support.

[0004] The aforementioned existing technologies have complex structures. In the process of converting a sofa into a bed, it is necessary to use the cooperation of structures such as a first link, a second link, a fixed bracket, a sliding bracket, a guide rail, and a slider. This makes the installation of the sofa bed more complicated and cumbersome, and also makes it difficult to transport the sofa bed. Utility Model Content

[0005] The present invention aims to overcome the defects in the prior art and provide a deformable sofa bed with a simple structure that can be quickly transformed from a sofa into a bed and is easy to transport.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a deformable sofa bed, comprising a main body and armrests disposed at both ends of the main body, with a backrest panel between the two armrests. The main body, armrests, and backrest panel are detachable. The main body includes a foldable and connected backrest, a first seat cushion, and a second seat cushion. The first and second seat cushions are folded to form a sofa cushion, and the backrest abuts against the backrest panel. The backrest, the first seat cushion, and the second seat cushion are unfolded to form a mattress. Spring packs are disposed inside the backrest, the first seat cushion, and the second seat cushion.

[0007] As a preferred embodiment of this utility model, a connecting structure for connecting the backrest and the first seat cushion is provided between the backrest and the first seat cushion, and the connecting structure is arranged along the length direction of the backrest.

[0008] In a preferred embodiment of this utility model, the width of the connecting structure is greater than the thickness of the first seat cushion.

[0009] As a preferred embodiment of the present invention, the connection structure includes a first connector disposed on the backrest and a second connector disposed on the first seat cushion, and a connecting member for connecting the first connector and the second connector is provided between the first connector and the second connector, and the first connector and the second connector are respectively disposed at the same height of the backrest and the first seat cushion.

[0010] As a preferred embodiment of the present invention, a third connector is provided between the first seat cushion and the second seat cushion for connecting the first seat cushion and the second seat cushion. The third connector is arranged along the length direction of the second seat cushion and is located at the same height as the first seat cushion and the second seat cushion.

[0011] As a preferred embodiment of this utility model, the width of the third connector is set such that when the first cushion and the second cushion are unfolded to form a mattress, the first cushion and the second cushion abut against each other.

[0012] As a preferred embodiment of the present invention, the spring pack includes a plurality of springs arranged in an array, each spring being covered with a spring sleeve, and adjacent spring sleeves being fixedly connected.

[0013] As a preferred embodiment of this utility model, the bottom of the main body is provided with a fastening structure for connecting the two handrails, and the bottom end of the handrail is provided with a mounting hole for installing the fastening structure.

[0014] As a preferred embodiment of the present invention, the bottom of the second cushion is provided with a fixing part for covering and fastening the structure, and the bottom of the second cushion is provided with a fastener that cooperates with the fixing part.

[0015] As a preferred embodiment of this utility model, the armrest is provided with a mounting component for mounting a backrest panel, and the end of the backrest panel is provided with a plug-in component that cooperates with the mounting component.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The backrest, first seat cushion, and second seat cushion are interconnected. When the first seat cushion and second seat cushion are folded together and the backrest is pressed against the backrest board, a sofa cushion is formed, thus forming a sofa structure. When the sofa is to be converted into a bed, simply pull the backrest to unfold the backrest, first seat cushion, and second seat cushion to form a bed. The transformation is convenient and quick, without complicated operations. At the same time, since the backrest, first seat cushion, and second seat cushion all contain spring packs, the spring packs can be compressed during transportation, which facilitates the transportation of the sofa bed and improves transportation efficiency.

[0018] 2. Furthermore, by cooperating with the mounting holes at the lower end of the armrest through the fastening structure, the armrest can be installed and fixed. At the same time, the fixing part at the bottom of the second seat cushion is covered by the fastening structure and connected to the fastener, thereby realizing the assembly and fixing of the sofa body. In addition, by inserting the connector on the backrest into the mounting part of the armrest, the backrest can be quickly installed, making the sofa bed assembly convenient and quick, solving the problem of sofa bed assembly time, and improving assembly efficiency. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the sofa configuration of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the mattress of this utility model;

[0021] Figure 3 This is a structural diagram of the connection structure;

[0022] Figure 4 This is a structural diagram of the mounting components;

[0023] Figure 5 This is a structural diagram of the connector;

[0024] Figure 6 This is a schematic diagram of the connection between the second seat cushion and the fastening structure;

[0025] Figure 7 This is a structural diagram of the fastening structure;

[0026] Figure 8 This is a schematic diagram of the spring pack;

[0027] Figure 9 This is a cross-sectional view of the spring pack.

[0028] Reference numerals: Main body 1, backrest 101, handle 1011, first seat cushion 102, second seat cushion 103, third connector 1031, fixing part 1032, fastener 1033, connecting structure 104, first connector 1041, second connector 1042, joining part 1043, armrest 2, mounting hole 201, mounting part 202, foot pad 203, backrest panel 3, plug-in part 301, sofa cushion 4, mattress 5, spring pack 6, spring sleeve 601, spring 6011, sponge layer 602, fastening structure 7, first connecting pipe 701, second connecting pipe 702, plug-in pipe 703. Detailed Implementation

[0029] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] like Figures 1-9 As shown, a deformable sofa bed includes a main body 1 and armrests 2 disposed at both ends of the main body 1. A backrest 3 is provided between the two armrests 2. The main body 1, armrests 2 and backrest 3 are detachable. The main body 1 includes a foldable and connected backrest 101, a first cushion 102 and a second cushion 103. The first cushion 102 and the second cushion 103 are folded to form a sofa cushion 4. The backrest 101 abuts against the backrest 3. The backrest 101, the first cushion 102 and the second cushion 103 are unfolded to form a mattress 5. Springs 6 are provided inside the backrest 101, the first cushion 102 and the second cushion 103.

[0031] Furthermore, the main body 1 is positioned between the two armrests 2. The main body 1 consists of a backrest 101, a first seat cushion 102, and a second seat cushion 103, which are sequentially connected. The main body 1 forms a sofa cushion 4 by folding the backrest 101, the first seat cushion 102, and the second seat cushion 103. At this time, the first seat cushion 102 and the second seat cushion 103 are folded together, with the first seat cushion 102 located above the second seat cushion 103. The backrest 101 is located above the first seat cushion 102 and is in a vertical position between the two armrests 2. A backrest panel 3 is also provided, and the backrest 101 abuts against the backrest panel 3, which supports the backrest 101 of the main body 1. When it is to be converted into a bed, the backrest 101 is pulled to unfold the backrest 101, the first cushion 102 and the second cushion 103 and lay them flat on the ground to form a mattress 5. At this time, the backrest 101, the first cushion 102 and the second cushion 103 abut against each other in sequence, and the backrest 101, the first cushion 102 and the second cushion 103 are at the same height, and the upper surfaces of the backrest 101, the first cushion 102 and the second cushion 103 are on the same plane.

[0032] The backrest 101, the first cushion 102, and the second cushion 103 are interconnected. When the first cushion 102 and the second cushion 103 are folded together and the backrest 101 abuts against the backrest panel 3, a sofa cushion 4 is formed, thus forming a sofa structure. When the sofa is to be turned into a bed, simply pull the backrest 101 to unfold the backrest 101, the first cushion 102, and the second cushion 103 to form a bed. The transformation is convenient and quick, without complicated operations.

[0033] In addition, the backrest 101, the first seat cushion 102, and the second seat cushion 103 are all equipped with spring packs 6. The surface and sides of the spring packs 6 are covered with sponge layers 602, and the sponge layers 602 are covered with cloth covers. The cloth covers are connected to each other to form a detachable integrated structure. The spring packs 6 can be compressed during transportation, which facilitates the transportation of the sofa bed and improves transportation efficiency.

[0034] A connecting structure 104 is provided between the backrest 101 and the first seat cushion 102 to connect the backrest 101 and the first seat cushion 102. The connecting structure 104 is provided along the length direction of the backrest 101. Furthermore, the connecting structure 104 is provided on the adjacent side of the backrest 101 and the first seat cushion 102. The backrest 101 and the first seat cushion 102 are connected by the connecting structure 104. At the same time, the width of the connecting structure 104 is greater than the thickness of the first seat cushion 102. When the sofa cushion 4 is in the state, since the backrest 101 is located above the first seat cushion 102 and the backrest 101 abuts against the backrest panel 3, a certain gap needs to be left between the backrest 101 and the first seat cushion 102 so that the backrest 101 can be folded over the first seat cushion 102.

[0035] Preferably, the width of the connecting structure 104 is the same as the thickness of the first seat cushion 102. When the backrest 101 is folded over the first seat cushion 102, the bottom of the backrest 101 just abuts against the upper surface of the first seat cushion 102, so that the backrest 101 will not move on the first seat cushion 102, thus improving the comfort of sitting.

[0036] Specifically, the connecting structure 104 includes a first connector 1041 disposed on the backrest 101 and a second connector 1042 disposed on the first seat cushion 102. A connecting member 1043 for connecting the first connector 1041 and the second connector 1042 is provided between the first connector 1041 and the second connector 1042. The first connector 1041 and the second connector 1042 are respectively disposed at the same height on the backrest 101 and the first seat cushion 102. Further, the first connector 1041 is disposed along the length direction of the backrest 101, and the first connector 1041 is a long strip of fabric sewn onto the side of the backrest 101. The first connecting piece 1042 is arranged along the length of the first cushion 102. The second connecting piece 1042 is a long strip of fabric and is sewn onto the side of the first cushion 102. The connection point between the first connecting piece 1041 and the backrest 101 and the connection point between the second connecting piece 1042 and the first cushion 102 are at the same height. That is, when the backrest 101 and the first cushion 102 are unfolded to form the mattress 5, both connection points are located on the upper surface of the backrest 101 and the first cushion 102. At the same time, the first connecting piece 1041 and the second connecting piece 1042 are connected by a connecting piece 1043, thereby realizing the detachability between the first connecting piece 1041 and the second connecting piece 1042.

[0037] The connector 1043 can be a zipper, button or Velcro, preferably a zipper, which makes the connection between the first connector 1041 and the second connector 1042 stronger.

[0038] When the backrest 101 and the first seat cushion 102 are unfolded to form the mattress 5, the connecting structure 104 creates a gap between the backrest 101 and the first seat cushion 102. Therefore, after the backrest 101 and the first seat cushion 102 are unfolded, the backrest 101 is pushed to the first seat cushion 102, so that the backrest 101 and the first seat cushion 102 come into contact. At the same time, when a person lies on the mattress 5, since the legs are placed at the connection between the backrest 101 and the first seat cushion 102, the gap will not affect the user's comfort.

[0039] A third connector 1031 is provided between the first cushion 102 and the second cushion 103 to connect the first cushion 102 and the second cushion 103. The third connector 1031 is arranged along the length direction of the second cushion 103 and is located at the same height as the first cushion 102 and the second cushion 103. Further, the third connector 1031 is a strip of fabric connecting the first cushion 102 and the second cushion 103. The two sides of the strip of fabric are respectively sewn onto the first cushion 102 and the second cushion 103. The connection point of the third connector 1031 with the first cushion 102 and the connection point with the second cushion 103 are at the same height. That is, when the first cushion 102 and the second cushion 103 are unfolded to form the mattress 5, both connection points are located on the upper surface of the first cushion 102 and the second cushion 103. The width of the third connector 1031 is reduced, thereby reducing the gap between the first cushion 102 and the second cushion 103.

[0040] Specifically, the width of the third connector 1031 is set such that when the first cushion 102 and the second cushion 103 are unfolded to form the mattress 5, the first cushion 102 and the second cushion 103 abut against each other. When in the state of sofa cushion 4, the first cushion 102 is located above the second cushion 103, and the connection between the first cushion 102 and the third connector 1031 is at the same point as the connection between the second cushion 103 and the third connector 1031. When the first cushion 102 and the second cushion 103 are unfolded, the first cushion 102 abuts against the side of the second cushion 103. At this time, the appropriate width of the third connector 1031 ensures that there are no gaps between the first cushion 102 and the second cushion 103. Since both the first cushion 102 and the second cushion 103 are covered with fabric covers, when the first cushion 102 and the second cushion 103 are unfolded, the sides of the first cushion 102 and the second cushion 103 abut against each other. However, there will still be a gap at the upper part of the joint between the first cushion 102 and the second cushion 103. This gap is filled by the third connector 1031. This gap is generally located in the area below the user's shoulders and above the buttocks. The third connector 1031 not only connects the first cushion 102 and the second cushion 103, but also fills the gap at the joint between the first cushion 102 and the second cushion 103, thereby improving the user's comfort.

[0041] In addition, a handle 1011 is provided on the side of the backrest 101, which facilitates the folding and unfolding of the backrest 101, the first seat cushion 102 and the second seat cushion 103.

[0042] The spring pack 6 includes several springs 6011 arranged in an array, each spring 6011 covered with a spring sleeve 601. Adjacent spring sleeves 601 are fixedly connected. Furthermore, the height and diameter of the springs 6011 are the same, and each spring 6011 is covered with a spring sleeve 601. Adjacent spring sleeves 601 are fixedly connected with glue to form a whole spring pack 6. Sponge layers 602 are fixedly attached to the upper and lower sides and side walls of the spring pack 6 with glue. A cloth cover is wrapped around the sponge layers 602, thereby improving the softness of the spring pack 6 and making the sofa bed more comfortable. In addition, the spring pack 6 can be compressed to the maximum compressible thickness of the springs 6011, which facilitates the packing of the sofa bed body 1 and the transportation of the entire sofa bed.

[0043] The bottom of the main body 1 is provided with a fastening structure 7 for connecting two armrests 2. The bottom end of the armrest 2 is provided with a mounting hole 201 for installing the fastening structure 7. Furthermore, the mounting hole 201 is located in the middle of the armrest 2, near the front. The fastening structure 7 is a rod-shaped structure that connects the two armrests 2. The two armrests 2 are connected by the fastening structure 7, which makes the assembly of the sofa bed more convenient and quick.

[0044] Specifically, the fastening structure 7 includes a first connecting pipe 701 and a second connecting pipe 702. The first connecting pipe 701 is partially inserted into the second connecting pipe 702. Both the first connecting pipe 701 and the second connecting pipe 702 have insertion tubes 703 at their ends, which are inserted into the mounting holes 201. The outer diameter of the first connecting pipe 701 is the same as the inner diameter of the second connecting pipe 702. The end portion of the first connecting pipe 701 is inserted into the second connecting pipe 702. The insertion tubes 703 are respectively perpendicular to the first connecting pipe 701 and the second connecting pipe 702, and the bottom end of the insertion tubes 703 is respectively connected to the ends of the first connecting pipe 701 and the second connecting pipe 702. The insertion tubes 703 are inserted into the mounting holes 201 of the handrail.

[0045] In addition, a foot pad 203 is provided at the bottom rear end of the armrest 2. The height of the foot pad 203 is the same as the diameter of the corresponding first connecting pipe 701 and second connecting pipe 702. The foot pad 203 is provided to prevent the sofa bed from shaking due to the imbalance at the bottom.

[0046] The bottom of the second cushion 103 is provided with a fixing part 1032 for covering and fastening structure 7, and the bottom of the second cushion 103 is provided with a fastener 1033 that cooperates with the fixing part 1032. Further, the fixing part 1032 is a piece of fabric sewn to the bottom of the second cushion 103. The fabric is arranged along the length direction of the second cushion 103, and the length of the fabric is the same as the length of the second cushion. By covering the fastening structure 7 with the fabric and fixing the fabric with the fastener 1033 at the bottom of the second cushion 103, the second cushion 103 is fixed.

[0047] Specifically, the fastener 1033 can be a zipper, button, or Velcro. Preferably, the fastener 1033 is Velcro. Since the second cushion 103 is located at the bottom, it remains fixed regardless of whether it is in the sofa cushion 4 state or the mattress 5 state. Furthermore, the bottom of the second cushion 103 is in contact with the ground. The Velcro has a large contact area and is more wear-resistant than zippers and buttons.

[0048] The armrest 2 is provided with a mounting part 202 for mounting the backrest 3. The end of the backrest 3 is provided with a plug 301 that cooperates with the mounting part 202. Furthermore, the upper end of the mounting part 202 is tilted at a certain angle towards the back of the sofa bed. When the plug 301 of the backrest 3 is plugged into the mounting part 202, the backrest 3 will tilt at a certain angle towards the back of the sofa bed. Therefore, when the backrest 101 abuts against the backrest 3, it will also tilt backward, so that the user is more comfortable when leaning against the backrest 101.

[0049] The fastening structure 7 enables quick assembly and fixation between the two armrests 2 and between the main body 1 and the armrests 2. At the same time, the installation parts 202 and the plug-in parts 301 enable quick installation of the backrest 3 and the armrests 2, making the assembly of the entire sofa bed simple and quick, without the need for complicated operations, thus improving assembly efficiency.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0051] Although this document uses numerous reference numerals from the accompanying drawings—including: main body 1, backrest 101, handle 1011, first seat cushion 102, second seat cushion 103, third connector 1031, fixing part 1032, fastener 1033, connecting structure 104, first connector 1041, second connector 1042, joining part 1043, armrest 2, mounting hole 201, mounting part 202, foot pad 203, backrest panel 3, plug-in part 301, sofa cushion 4, mattress 5, spring pack 6, spring sleeve 601, spring 6011, sponge layer 602, fastening structure 7, first connecting pipe 701, second connecting pipe 702, and plug-in pipe 703—the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A deformable sofa bed, comprising a main body (1) and armrests (2) disposed at both ends of the main body (1), a backrest (3) disposed between the two armrests (2), wherein the main body (1), armrests (2) and backrest (3) are detachable, characterized in that, The main body (1) includes a foldable and connected backrest (101), a first cushion (102) and a second cushion (103). The first cushion (102) and the second cushion (103) are folded to form a sofa cushion (4), and the backrest (101) abuts against the backrest panel (3). The backrest (101), the first cushion (102) and the second cushion (103) are unfolded to form a mattress (5). The backrest (101), the first cushion (102) and the second cushion (103) are all equipped with spring packs (6).

2. The deformable sofa bed according to claim 1, characterized in that, A connecting structure (104) for connecting the backrest (101) and the first seat cushion (102) is provided between the backrest (101) and the first seat cushion (102), and the connecting structure (104) is provided along the length direction of the backrest (101).

3. A deformable sofa bed according to claim 2, characterized in that, The width of the connecting structure (104) is greater than the thickness of the first cushion (102).

4. A deformable sofa bed according to claim 2 or 3, characterized in that, The connection structure (104) includes a first connector (1041) disposed on the backrest (101) and a second connector (1042) disposed on the first seat cushion (102). A connecting member (1043) for connecting the first connector (1041) and the second connector (1042) is provided between the first connector (1041) and the second connector (1042). The first connector (1041) and the second connector (1042) are respectively disposed at the same height of the backrest (101) and the first seat cushion (102).

5. A deformable sofa bed according to claim 1 or 2, characterized in that, A third connector (1031) for connecting the first cushion (102) and the second cushion (103) is provided between the first cushion (102) and the second cushion (103). The third connector (1031) is arranged along the length direction of the second cushion (103) and is located at the same height of the first cushion (102) and the second cushion (103).

6. A deformable sofa bed according to claim 5, characterized in that, The width of the third connector (1031) is set such that when the first cushion (102) and the second cushion (103) are unfolded to form a mattress (5), the first cushion (102) abuts against the second cushion (103).

7. A deformable sofa bed according to claim 1, characterized in that, The spring pack (6) includes a plurality of springs (6011) arranged in an array, each spring (6011) is covered with a spring sleeve (601), and adjacent spring sleeves (601) are fixedly connected.

8. A deformable sofa bed according to claim 1, characterized in that, The bottom of the main body (1) is provided with a fastening structure (7) for connecting two handrails (2), and the bottom end of the handrail (2) is provided with a mounting hole (201) for installing the fastening structure (7).

9. A deformable sofa bed according to claim 8, characterized in that, The bottom of the second cushion (103) is provided with a fixing part (1032) for covering and fastening structure (7), and the bottom of the second cushion (103) is provided with a fastener (1033) that cooperates with the fixing part (1032).

10. A deformable sofa bed according to claim 1, characterized in that, The armrest (2) is provided with a mounting part (202) for mounting the backrest (3), and the end of the backrest (3) is provided with a plug-in part (301) that cooperates with the mounting part (202).

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