Sliding rail sofa bed folding disassembly and assembly structure

Abstract

The utility model discloses a slide rail sofa bed folding disassembly and assembly structure, which belongs to the technical field of sofa beds, and comprises a seat frame comprising a first framework and a second framework, the second framework is connected to the first framework in a sliding manner, and the top end surfaces of the second framework and the first framework are positioned on the same plane; the backrest is detachably arranged at the rear side end of the seat frame; the number of the armrests is two, and each armrest is movably connected to the backrest and turns over between a first position and a second position relative to the backrest; at the first position, the armrests are perpendicular to the backrest or tend to be perpendicular to the backrest; at the second position, the armrests and the backrest are distributed in parallel or tend to be parallel. Through the sliding design of the first framework and the second framework, the detachable design of the backrest and the foldable design of the armrests, all parts of the sofa bed can be separately carried, so that the overall weight is reduced, and the size is also reduced.

Description

Technical Field

[0001] This utility model relates to the field of sofa bed technology, and in particular to a folding and disassembling structure for a sliding rail sofa bed. Background Technology

[0002] In the furniture market, sofa beds, which combine the functions of a sofa and a bed, are very popular among consumers. They are especially suitable for living environments with limited space, such as small apartments, single dormitories, and guest rooms. They can be used as a sofa on a daily basis to meet people's needs for rest and entertainment, and can be unfolded into a bed to provide temporary sleeping space when guests stay overnight.

[0003] However, existing sofa bed products present numerous problems in actual use and transportation. Traditional sofa beds are typically one-piece structures, large in size and with a fixed structure, which poses significant difficulties for handling and transportation. During transport, the large size and weight of sofa beds require substantial manpower and resources, increasing transportation costs and making them susceptible to damage from collisions and compression during transport, affecting the product's appearance and performance. Furthermore, during transportation, the large size of sofa beds occupies a significant amount of space, reducing transportation efficiency and increasing costs.

[0004] Furthermore, for consumers, moving and installing a sofa bed after purchase is also a headache. The modular design makes it difficult to navigate narrow staircases, elevators, and doorways, causing inconvenience and significantly impacting the customer experience.

[0005] To address these issues, there is an urgent need in the market for a sofa bed structure that can be easily folded and disassembled to reduce the overall weight and size of the sofa bed, making it easier to move and transport, and improving the user experience. Utility Model Content

[0006] This utility model provides a folding and disassembling structure for a sliding rail sofa bed to solve the problems in the prior art.

[0007] This utility model embodiment adopts the following technical solution: a folding and disassembling structure for a sliding rail sofa bed, comprising: a seat frame, including a first frame and a second frame, the second frame being slidably connected to the first frame, and the top surfaces of the second frame and the first frame being located on the same plane; a backrest, detachably disposed on the rear end of the seat frame; and two sets of armrests, each armrest being movably connected to the backrest and rotating relative to the backrest between a first position and a second position; in the first position, the armrests are perpendicular to or nearly perpendicular to the backrest; in the second position, the armrests are parallel to or nearly parallel to the backrest. Through the sliding design of the first and second frames, the detachable design of the backrest, and the foldable design of the armrests, the various components of the sofa bed can be transported separately, which not only reduces the overall weight but also the volume.

[0008] Preferably, the first frame has several horizontally arranged first rows of ribs, with gaps between adjacent first rows of ribs; the second frame has several second rows of ribs, which are respectively inserted into the gaps; when the second rows of ribs are fully inserted into the gaps, the sofa bed is in its first form; when the second frame slides to its farthest distance relative to the first frame, the sofa bed is in its second form. In the first form, the second rows of ribs are fully inserted into the gaps, ensuring the compactness and stability of the structure; in the second form, the cooperation between the first and second rows of ribs also provides some support for the unfolded bed, improving the usability of the sofa bed.

[0009] Preferably, the lower end of the first frame is configured as a first connecting portion connecting to a plurality of first ribs, and the lower end of the second frame is configured as a second connecting portion connecting to a plurality of second ribs. When the sofa bed transitions from a first form to a second form, the second connecting portion gradually moves closer to the first connecting portion, and in the second form, the second connecting portion abuts against the first connecting portion. The first connecting portion increases the stability between the first ribs. The limiting effect between the first and second connecting portions ensures that the second frame slides to the accurate position when the sofa bed transitions from the first form to the second form.

[0010] Preferably, the lower end of the second frame is equipped with a plurality of first legs for supporting the second frame.

[0011] Preferably, the backrest includes: a back panel; two support rods, each with a first slot at its top, the left and right ends of the back panel being respectively inserted into the first slots of the two support rods; and connectors, at least one of the connectors being connected to each support rod, the plugs on the connectors being inserted into the second slots on the corresponding support rods. The back panel is connected to the support rods via slots, and the connectors are connected to the support rods via plugs. This insertion method makes the assembly and disassembly of the backrest simple and convenient.

[0012] Preferably, the backrest or armrests are connected to the first frame by hand-tightening screws to improve the convenience of disassembling or assembling the overall sofa bed structure and achieve tool-free disassembly and assembly.

[0013] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0014] The sofa bed's sliding design between the first and second frames allows it to be transformed from a seat to a bed. The detachable backrest and foldable armrests enable the individual components to be moved separately. This not only reduces the overall weight and size, making it easier for movers to handle and facilitating storage and transport. For users, when not in use, the sofa bed can be folded into a smaller size to minimize space usage; when needed, it can be quickly unfolded into a seat or bed, maximizing space utilization and improving space efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the seat configuration of this utility model. Figure 1 ;

[0017] Figure 2 This is a three-dimensional structural diagram of the seat configuration of this utility model. Figure 2 ;

[0018] Figure 3 This is a three-dimensional structural diagram of the bed in the present invention. Figure 1 ;

[0019] Figure 4 This is a three-dimensional structural diagram of the bed in the present invention. Figure 2 ;

[0020] Figure 5 This is a three-dimensional structural diagram of the backrest and armrests of this utility model;

[0021] Figure 6 This is a schematic diagram of the assembly of the backrest of this utility model.

[0022] Figure Labels

[0023] 1-Seat frame; 11-First skeleton; 111-First rib; 112-Gap; 113-Slide rail; 114-First connecting part; 12-Second skeleton; 121-Second rib; 122-Second connecting part; 13-First support leg; 2-Backrest; 21-Back panel; 22-Support rod; 221-First slot; 222-Second slot; 23-Connector; 231-Insertion block; 3-Armrest; 4-Hand-tightening screw. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0026] Reference Figures 1 to 6 As shown in the figure, this utility model embodiment provides a folding and disassembling structure for a sliding rail sofa bed, which mainly includes a seat frame 1, a backrest 2, and armrests 3.

[0027] The seat frame 1 includes a first frame 11 and a second frame 12, the second frame 12 being slidably connected to the first frame 11, and the top surfaces of the second frame 12 and the first frame 11 being on the same plane; the backrest 2 is detachably disposed on the rear end of the seat frame 1; two sets of armrests 3 are configured, each armrest 3 being movably connected to the backrest 2 and rotating relative to the backrest 2 between a first position and a second position (generally, the armrest 3 is rotatably connected to the backrest 2 via a hinge); in the first position, the armrests 3 are perpendicular to or tend to be perpendicular to the backrest 2 (see reference). Figure 5 The right armrest); in the second position, the armrest 3 is parallel or nearly parallel to the backrest 2 (see reference). Figure 5 (The left armrest). When the armrest 3 is in the first position and the backrest 2 and both armrests 3 are installed on the first frame 11, the sofa bed is formed.

[0028] In this embodiment, the first frame 11 and the second frame 12 are slidably connected to each other, and the sofa bed can be transformed from a seat state to a bed state by their relative sliding. When it is necessary to change the sofa bed from a seat state to a bed state, the second frame 12 is pushed to slide on the first frame 11 until it unfolds into a suitable bed shape; conversely, the second frame 12 is slid back to its initial position, and the sofa bed returns to the seat state.

[0029] The backrest 2 is detachably mounted on the rear end of the seat frame 1. When the sofa bed is in use, the backrest 2 is installed on the seat frame 1; when it needs to be moved or transported, the backrest 2 can be detached from the seat frame 1. Two sets of armrests 3 are movably connected to the backrest 2 and can be flipped between a first position and a second position relative to the backrest 2. When the sofa bed is in normal use, the armrests 3 are flipped to the first position, where the armrests 3 are perpendicular or nearly perpendicular to the backrest 2, providing support for the user; when moving or transporting, the armrests 3 are flipped to the second position, where the armrests 3 are parallel or nearly parallel to the backrest 2, reducing space occupation.

[0030] The large size of sofa beds has always been a challenge for handling and transportation. This structure, through the sliding design of the first frame 11 and the second frame 12, allows the sofa bed to be transformed from a seat to a bed. The detachable backrest 2 and the foldable armrests 3 allow the various components of the sofa bed to be transported separately. This not only reduces the overall weight but also the volume, making it easier for movers to handle and facilitating storage and transportation. Moreover, for users, when not in use, the sofa bed can be folded into a smaller size to reduce space occupation; when needed, it can be quickly unfolded into a seat or bed, making full use of space and improving space utilization efficiency.

[0031] In some practical applications, refer to Figures 1 to 4 As shown, the first frame 11 has several horizontally arranged first row ribs 111, and there is a gap 112 between adjacent first row ribs 111; the second frame 12 has several second row ribs 121, which are respectively inserted into the gaps 112; when the second row ribs 121 are fully inserted into the gaps 112, the sofa bed is in its first form; when the second frame 12 slides to its farthest distance relative to the first frame 11, the sofa bed is in its second form. Specifically, at least two parallel sliding rails 113 are installed on the first frame 11, and the actuating ends of the two sliding rails 113 are fixedly connected to the second frame 12, thereby realizing the relative sliding between the first frame 11 and the second frame 12. It should be noted that the sliding rails 113 are a conventional design. In this embodiment, sliding rails 113 with better sliding performance should be used to ensure that the second frame 12 is pulled out smoothly without abnormal noise.

[0032] When the sofa bed is in its first form (e.g., seat position), several second-row ribs 121 are fully inserted into several gaps 112, at which point the first frame 11 and the second frame 12 are tightly connected, and the overall structure is relatively regular. When it needs to be transformed into its second form (e.g., bed position), the second frame 12 is pushed to slide relative to the first frame 11 (the sliding direction of the second frame 12 relative to the first frame 11 is the front-to-back direction of the sofa bed). As the second frame 12 slides, the second-row ribs 121 gradually slide out of the gaps 112 until the second frame 12 slides to its farthest distance relative to the first frame 11, and the sofa bed unfolds into a bed position. The interlocking design of the first-row ribs 111 and the second-row ribs 121 makes the sofa bed more stable during form transformation. In the first form, the second-row ribs 121 are fully inserted into the gaps 112, ensuring the compactness and stability of the structure; in the second form, the cooperation between the first-row ribs 111 and the second-row ribs 121 also provides some support for the unfolded bed, improving the usability of the sofa bed.

[0033] In some practical applications, based on the design of the first skeleton 11 and the second skeleton 12 described above: (Refer to...) Figure 2 and Figure 4 As shown, the lower end of the first frame 11 is configured as a first connecting part 114 connected to a plurality of first rib strips 111, and the lower end of the second frame 12 is configured as a second connecting part 122 connected to a plurality of second rib strips 121.

[0034] In this embodiment, when the sofa bed is to be transformed from a first form (such as a seat) to a second form (such as a bed), the second frame 12 is pushed to slide relative to the first frame 11. During this process, the second connecting portion 122 connected to the second rib 121 gradually moves closer to the first connecting portion 114 connected to the first rib 111. As the second frame 12 slides, the second rib 121 gradually slides out of the gap 112 until the second frame 12 slides to its farthest distance relative to the first frame 11. At this point, the second connecting portion 122 abuts against the first connecting portion 114, and the sofa bed unfolds into a bed state.

[0035] The first connecting part 114 increases the stability between the first ribs 111, and the second connecting part 122 increases the stability between the second ribs 121. This makes the rib structure more stable during the transformation of the sofa bed, better able to withstand external forces, and less prone to deformation. The limiting function between the first connecting part 114 and the second connecting part 122 ensures that the second frame 12 slides to the accurate position when the sofa bed transforms from the first to the second form, avoiding excessive or insufficient sliding, thus ensuring the accuracy and reliability of the transformation.

[0036] In some practical applications, refer to Figure 4 As shown, the lower end of the second frame 12 is equipped with a plurality of first legs 13 for supporting the second frame 12.

[0037] In some practical applications, refer to Figure 1 and Figure 6 As shown, the backrest 2 includes a back panel 21, support rods 22, and connectors 23. Two support rods 22 are provided, and each support rod 22 has a first slot 221 at its top. The left and right ends of the back panel 21 are respectively inserted into the first slots 221 of the two support rods 22. At least one connector 23 is connected to each support rod 22, and the insert 231 on the connector 23 is inserted into the second slot 222 on the corresponding support rod 22 (the armrest 3 is hinged to this connector 23).

[0038] In this embodiment, the tops of the two support rods 22 of the backrest 2 are provided with first slots 221. The left and right ends of the back panel 21 are respectively inserted into these two first slots 221 to connect the back panel 21 to the support rods 22. When the backrest 2 needs to be installed, the back panel 21 is accurately inserted into the slot; when disassembling, the back panel 21 is pulled out of the slot. Each support rod 22 is connected to at least one connector 23, and the insert 231 on the connector 23 is inserted into the second slot 222 on the corresponding support rod 22. During installation, the insert 231 is inserted into the slot; during disassembly, the insert 231 is pulled out.

[0039] Therefore, the back panel 21 is connected to the support rod 22 via a slot, and the connector 23 is connected to the support rod 22 via a plug 231. This plug-in connection method makes the assembly and disassembly of the backrest 2 simple and convenient, requiring no complicated tools or operations, thus improving installation and transportation efficiency. The backrest 2 can be disassembled into the back panel 21, support rod 22, and connector 23. Combined with the design of the detachable first frame 11 and second frame 12 and the foldable armrest 3, the overall weight and volume of the sofa bed are greatly reduced, making it easier for movers to operate and for storage and transportation in transport vehicles.

[0040] In some practical applications, refer to Figure 4 As shown, the backrest 2 or armrest 3 is connected to the first frame 11 by a hand-tightening screw 4 to improve the convenience of disassembling or assembling the overall sofa bed structure and achieve tool-free disassembly and assembly.

[0041] In summary, the sofa bed's folding and disassembly structure supports multiple driving methods to achieve relative sliding between the first and second frames, such as manual pull rods and electric push rods, which can be flexibly selected according to user needs, further enhancing the product's applicability and convenience.

[0042] This sofa bed's folding and disassembly structure can be widely used in the following fields:

[0043] Home Environment: In a home environment, sofa beds typically need to meet multiple functional needs, such as daily rest, entertaining guests, and temporary sleeping. The sofa bed folding and disassembly structure of this invention can easily achieve these functional conversions, and is simple to operate and has stable performance.

[0044] Hotel Industry: In the hotel industry, space utilization efficiency and customer experience are paramount. The sofa bed folding and disassembly structure of this invention efficiently utilizes space while providing a comfortable resting environment, meeting the diverse needs of hotel customers.

[0045] Apartments and small residences: For apartments and small residences, space is limited and various living needs need to be met. The sofa bed folding and disassembly structure of this invention solves this problem perfectly, allowing it to be used as a sofa for daily rest and easily converted into a bed when needed.

[0046] The sofa bed folding and disassembly structure of this invention is also applicable to other places that require flexible space conversion, such as office rest areas and library rest areas.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A sliding rail sofa bed folding disassembling structure, characterized in that, The utility model relates to a sofa bed, which comprises a seat frame (1) and a backrest (2) and two armrests (3). The seat frame (1) comprises a first skeleton (11) and a second skeleton (12), the second skeleton (12) is slidably connected to the first skeleton (11), and the top end surfaces of the second skeleton (12) and the first skeleton (11) are located in the same plane. The backrest (2) is detachably arranged at the rear end of the seat frame (1). Each armrest (3) is movably connected to the backrest (2) and is capable of being flipped between a first position and a second position relative to the backrest (2). When in the first position, the armrest (3) is perpendicular or tends to be perpendicular to the backrest (2); when in the second position, the armrest (3) is parallel or tends to be parallel to the backrest (2).

2. The folding disassembling structure of slide rail sofa bed according to claim 1, characterized in that, The first skeleton (11) has a plurality of first rows of skeleton strips (111) arranged transversely, and each adjacent first row of skeleton strips (111) has a gap (112) therebetween.

3. The folding disassembling structure of slide rail sofa bed according to claim 2, characterized in that, The second skeleton (12) has a plurality of second rows of skeleton strips (121), and each second row of skeleton strips (121) is inserted into a corresponding gap (112).

4. The folding disassembling structure of slide rail sofa bed according to claim 2, characterized in that, When the second skeleton (12) is slid to the farthest distance relative to the first skeleton (11), the sofa bed is in a second form.

5. The folding disassembling structure of slide rail sofa bed according to claim 2, characterized in that, The sliding direction of the second skeleton (12) relative to the first skeleton (11) is the front-to-back direction of the sofa bed. The first skeleton (11) is provided with at least two parallel sliding rail members (113), and the execution ends of the two sliding rail members (113) are fixedly connected to the second skeleton (12).

6. The folding disassembling structure of slide rail sofa bed according to claim 1, characterized in that, The lower end of the first skeleton (11) is provided with a first connecting portion (114) connected to the plurality of first rows of skeleton strips (111), and the lower end of the second skeleton (12) is provided with a second connecting portion (122) connected to the plurality of second rows of skeleton strips (121).

7. The folding disassembling structure of slide rail sofa bed according to claim 1, characterized in that, When the sofa bed is converted from the first form to the second form, the second connecting portion (122) gradually approaches the first connecting portion (114), and in the second form, the second connecting portion (122) abuts against the first connecting portion (114).

8. The folding disassembling structure of slide rail sofa bed according to claim 1, characterized in that, The lower end of the second skeleton (12) is provided with a plurality of first supporting legs (13) for supporting the second skeleton (12). The armrest (3) is rotatably connected to the backrest (2) by a hinge. The backrest (2) comprises a back plate (21) and two supporting rods (22). Each supporting rod (22) has a first insertion slot (221) at the top thereof, and the left and right sides of the back plate (21) are respectively inserted into the first insertion slots (221) of the two supporting rods (22).

9. The folding disassembling structure of slide rail sofa bed according to claim 8, characterized in that, Each supporting rod (22) is provided with at least one connecting member (23), and the insertion block (231) of the connecting member (23) is inserted into the second insertion slot (222) of the corresponding supporting rod (22).

10. The folding disassembling structure of slide rail sofa bed according to claim 1, characterized in that, The armrest (3) is hingedly connected to the connecting member (23). When the armrest (3) is in the first position and the backrest (2) and the two armrests (3) are both mounted on the first skeleton (11), the sofa bed is formed.

11. The folding disassembling structure of slide rail sofa bed according to claim 1, characterized in that, The backrest (2) or the armrest (3) is connected to the first frame (11) by a hand screw (4).

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