A sofa backrest frame, a sofa backrest and a sofa

Abstract

This utility model belongs to the field of furniture technology and discloses a sofa backrest frame, a sofa backrest, and a sofa. The sofa backrest frame includes: a frame body, which is a rectangular frame structure; two connectors, spaced apart along the width direction of the frame body; a first end of each connector is detachably connected to the frame body, and a connecting plug is provided at the second end of each connector, which is configured to be inserted into the sofa body; the first end and the second end of each connector are offset along the width direction of the frame body. When transporting the sofa backrest frame, the connectors connected to the frame body are detached and placed in the hollow part of the frame body to reduce volume and space occupation, thereby increasing the number of sofas transported at one time, reducing the transportation cost of a single sofa, and improving versatility.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to a sofa backrest frame, a sofa backrest, and a sofa. Background Technology

[0002] As a core piece of furniture in modern homes, a sofa consists of a seat frame, backrest frame, armrest frame, filling material, and outer covering. When transporting sofas, they are usually disassembled and packed separately to reduce the difficulty of handling and minimize space usage.

[0003] In existing technologies, most sofa backrest frames adopt a one-piece or fixed connection structure, forming a fixed and incompressible volume after the backrest frame is manufactured. This rigid structure results in a large overall size and fixed shape of the backrest frame, requiring a large amount of transportation space, thus reducing the quantity transported per shipment and increasing the transportation cost per sofa. Furthermore, sofas also require a large amount of storage space, leading to high inventory costs and difficulties in space management. While some backrest frames using folding brackets can reduce the packing size to some extent, they can only fit specific sofa bodies, resulting in poor versatility. Utility Model Content

[0004] The purpose of this utility model is to provide a sofa back frame, a sofa back, and a sofa, which can reduce the storage space occupied during transportation, increase the quantity transported in a single trip, reduce the transportation cost of a single sofa, and improve versatility.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Firstly, a sofa backrest frame is provided, comprising:

[0007] The main skeleton is a rectangular frame structure;

[0008] Two connectors are spaced apart on the frame body along the width direction; the first end of each connector is detachably connected to the frame body, and the second end of each connector is provided with a connector plug, which is configured to be inserted into the sofa body.

[0009] Along the width direction of the main body of the skeleton, the first end of the connector and the second end of the connector are offset.

[0010] As an optional technical solution for the sofa backrest frame, the connector is set as a hollow square tube structure.

[0011] As an optional technical solution for the sofa backrest frame, the connector includes two connecting sections and a transition section. The two ends of the transition section are respectively connected to the two connecting sections. One of the two connecting sections is detachably connected to the frame body as the first end of the connector, and the other is connected to the connecting plug as the second end of the connector.

[0012] The two connecting segments are arranged in parallel, and the transition segment is arranged at an angle to both connecting segments.

[0013] As an optional technical solution for the sofa backrest frame, the transition section is bent away from the other connector at the first end of the connector, and the connecting plug is detachably connected to the inner side of the connector facing the other connector.

[0014] The transition section is bent toward the other connector relative to the first end of the connector, and the connector plug is detachably connected to the outer side of the connector opposite to the other connector.

[0015] As an optional technical solution for the sofa backrest frame, it also includes multiple first fasteners; the connecting segment has multiple connecting holes, and the frame body has multiple fastening holes. When the connecting segment is connected to the frame body as the first end of the connector, the first fastener passes through the connecting hole and is screwed and fixed in the fastening hole.

[0016] As an optional technical solution for the sofa backrest frame, it also includes a pad and a plurality of second fasteners, wherein the pad is sandwiched between the second end of the connector and the connector plug;

[0017] The connecting plug has multiple first through holes, and the pad has multiple second through holes. When the connecting segment is connected to the connecting plug as the second end of the connector, the second fastener passes through the first through holes, the second through holes, and the connecting holes, and is fixed to the connecting segment.

[0018] The first fastener and the second fastener adopt the same type and size fastening structure.

[0019] As an optional technical solution for the sofa backrest frame, the pad block is provided with multiple positioning parts, and the connecting section is provided with multiple positioning holes. When the connecting section is connected to the connecting plug as the second end of the connector, the multiple positioning parts are inserted into the multiple positioning holes one by one.

[0020] Secondly, a sofa backrest is provided, including an outer covering and the aforementioned sofa backrest frame, wherein the outer covering covers the sofa backrest frame.

[0021] Thirdly, a sofa is provided, including a sofa body and the aforementioned sofa backrest.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a sofa backrest frame, a sofa backrest, and a sofa. Two connectors of the sofa backrest frame are detachable from the frame body. During transportation or storage, the connectors attached to the frame body can be removed and placed into the hollow space of the frame body, thereby reducing volume and space occupation, increasing the quantity transported at one time, and reducing the transportation cost per sofa. Furthermore, depending on the insertion interface spacing of different sofa body models, connectors with different degrees of misalignment at both ends can be replaced, allowing the frame body to adapt to various sofa body models, thus improving versatility. Attached Figure Description

[0024] Figure 1 It is the existing sofa backrest frame;

[0025] Figure 2 This is a schematic diagram of the structure of the sofa back frame when the pad is set inside the connector according to a specific embodiment of the present utility model;

[0026] Figure 3 This is an exploded view of the sofa back frame provided in a specific embodiment of this utility model;

[0027] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0028] Figure 5 This is a schematic diagram of the sofa back frame structure when the pad is provided on the outside of the connector according to a specific embodiment of this utility model;

[0029] Figure 6 This is a comparative diagram of the dimensions of the sofa back frame provided by the prior art and the specific embodiments of this utility model;

[0030] Figure 7 This is a schematic diagram showing the dimensions of the sofa backrest frame during packaging and transportation, provided by the prior art and specific embodiments of this utility model.

[0031] In the picture:

[0032] 1. Main frame; 11. Fastening holes;

[0033] 2. Connecting component; 21. Connecting section; 22. Transition section; 23. Connecting hole; 24. Positioning hole;

[0034] 3. Connecting plug; 31. First through hole;

[0035] 4. First fastener;

[0036] 5. Pad; 51. Positioning part; 52. Second through hole;

[0037] 6. Second fastener. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] Reference Figure 1This is a commonly used sofa backrest frame in existing technology. The sofa backrest frame is an integrated fixed connection structure with a fixed volume. It cannot be disassembled during transportation and occupies a large space.

[0044] like Figures 2 to 5 As shown, this embodiment provides a sofa backrest frame, including a frame body 1 and two connectors 2. The frame body 1 is a rectangular frame structure, and the two connectors 2 are spaced apart along the width direction of the frame body 1. The first end of the connector 2 is detachably connected to the frame body 1, and the second end of the connector 2 is provided with a connecting plug 3. The connecting plug 3 is configured to be inserted into the sofa body to install the sofa backrest onto the sofa body. When transporting the sofa backrest frame, the connectors 2 connected to the frame body 1 are detached and placed in the hollow part of the frame body 1 to achieve the effect of reducing volume and space occupation, thereby increasing the quantity transported at one time and reducing the transportation cost of a single sofa.

[0045] Specifically, the main body of the sofa includes a seat cushion frame and an outer covering fitted onto the seat cushion frame. The seat cushion frame is provided with a plug-in structure that cooperates with the connecting plug 3. The connecting plug 3 is an existing conventional structure, and its specific structure and principle refer to existing technology, which will not be elaborated here.

[0046] Furthermore, such as Figures 2 to 5 As shown, along the width direction of the frame body 1, the first end of the connector 2 and the second end of the connector 2 are offset. Specifically, the position of the backrest insertion interface on different models of sofa bodies is different, and the spacing between adjacent insertion interfaces is also different. According to the insertion interface spacing of different models of sofa bodies, the connector 2 with different degrees of offset at both ends can be replaced accordingly, so that the frame body 1 can be adapted to multiple models of sofa bodies, thereby improving versatility.

[0047] like Figures 2 to 5 As shown, connector 2 is a hollow square tube structure, which greatly reduces the weight of connector 2 itself. In addition, the rectangular cross-section of the square tube can evenly distribute external forces and ensure the stability of the connection.

[0048] Furthermore, the connector 2 includes two connecting segments 21 and a transition segment 22. The two ends of the transition segment 22 are respectively connected to the two connecting segments 21. One of the two connecting segments 21 is detachably connected to the frame body 1 as the first end of the connector 2, and the other is connected to the connecting plug 3 as the second end of the connector 2. The two connecting segments 21 are arranged in parallel, and the transition segment 22 is set at an angle to both connecting segments 21. In this embodiment, the transition segment is set at an obtuse angle to both connecting segments 21. With this arrangement, the two connectors 2, spaced apart on the frame body 1, can be shared. That is, the connector 2 can be used on both the left and right sides of the frame body 1, and both ends of the connector 2 are also universal. During assembly, workers do not need to deliberately distinguish the connectors 2, making it more convenient and efficient, and preventing incorrect or reversed installation.

[0049] Furthermore, the transition section 22 is bent away from the other connector 2 at its first end relative to the connector 2, and the connecting plug 3 is detachably connected to the inner side of the connector 2 facing the other connector 2, i.e. Figures 2-4 In the shown insert structure, the connecting plug 3 is located inside the connector 2. Alternatively, the transition section 22 is bent relative to the first end of the connector 2 towards the other connector 2, and the connecting plug 3 is detachably connected to the outer side of the connector 2 facing away from the other connector 2. Figure 5 The external insertion structure is shown. This design allows the sofa backrest frame to be adapted to sofa bodies of different sizes, providing excellent versatility.

[0050] Alternatively, please refer to Figure 4 The sofa backrest frame also includes multiple first fasteners 4. The connecting section 21 has multiple connecting holes 23, and the frame body 1 has multiple fastening holes 11. When the connecting section 21 is connected to the frame body 1 as the first end of the connector 2, the first fastener 4 passes through the connecting hole 23 and is screwed into the fastening hole 11 to achieve a detachable connection between the connector 2 and the frame body 1. The operation is simple and convenient, and the materials are readily available, making it economical.

[0051] For example, in this embodiment, please refer to Figure 4 The first fastener 4 and the fastening hole 11 are provided in twos. Each connecting segment 21 is provided with two connecting holes 23. The first fastener 4 is a bolt, the connecting hole 23 is a through hole, and the fastening hole 11 is a threaded hole. In other embodiments, the number of the first fastener 4, the connecting hole 23 and the fastening hole 11 can be set as needed, and no specific limitation is made here.

[0052] Alternatively, please refer to Figures 2-5The sofa backrest frame also includes a pad 5 and multiple second fasteners 6. The pad 5 is sandwiched between the second end of the connector 2 and the connector plug 3. The connector plug 3 has multiple first through holes 31, and the pad 5 has multiple second through holes 52. When the connecting segment 21 is connected to the connector plug 3 as the second end of the connector 2, the second fasteners 6 pass through the first through holes 31, the second through holes 52, and the connecting hole 23, and are fixed to the connecting segment 21, so as to realize the detachable connection between the connector plug 3 and the connector 2. The operation is simple and convenient, and the materials are readily available and economical.

[0053] For example, the first fastener 4 and the second fastener 6 adopt the same type and model of fastening structure. Specifically, the first fastener 4 and the second fastener 6 are bolts with the same length and diameter. The first fastener 4 and the second fastener 6 can be shared, which makes the production and assembly more efficient.

[0054] In this embodiment, there are two of each of the second fastener 6, the first through hole 31, and the second through hole 52. One end of the second fastener 6 that passes through the connecting hole 23 is locked to the connector 2 by a nut. In other embodiments, the number of the second fastener 6, the first through hole 31, and the second through hole 52 can be set as needed, and no specific limitation is made here.

[0055] Further, please refer to Figure 4 The pad 5 is provided with multiple positioning parts 51, and the connecting section 21 has multiple positioning holes 24. The multiple positioning parts 51 are inserted into the multiple positioning holes 24 one by one. The above configuration can achieve the initial positioning of the pad 5 when installing it, which facilitates the subsequent screwing and fixing of the connecting plug 3.

[0056] For example, please refer to Figure 4 In this embodiment, two positioning holes 24 and two positioning parts 51 are provided; in other embodiments, the number of positioning holes 24 and two positioning parts 51 can be set as needed, and no specific limitation is made here.

[0057] In addition, this embodiment also provides a sofa backrest, including an outer covering and the aforementioned sofa backrest frame, with the outer covering covering the sofa backrest frame. This sofa backrest possesses all the beneficial effects of the aforementioned sofa backrest frame, which will not be elaborated here.

[0058] Specifically, during transportation, the outer covering is folded and placed into the hollow space of the main frame 1 to save space. For example, the outer covering is made of existing flexible materials, and its specific materials and composition are described in accordance with existing technology and will not be repeated here.

[0059] In addition, this embodiment also provides a sofa, including a sofa body and the aforementioned sofa backrest, which has all the beneficial effects of the aforementioned sofa backrest, and will not be described in detail here.

[0060] For example, refer to Figure 6 In the same model of sofa, the height H0 of the one-piece sofa back frame in the prior art is 653.5mm, while the height H1 of the sofa back frame provided in this embodiment is 480.5mm.

[0061] During actual transportation or warehousing, the two sofa backrest frames are packed together in one packing box. For example... Figure 7 As shown, the specific dimensions of the existing one-piece sofa backrest frame when packaged in two boxes are: length X0 = 585.0 mm, width Y0 = 200.0 mm, height H0 = 670.0 mm, and volume approximately 0.078 m³. 3 The sofa backrest frame provided in this embodiment has the following dimensions when packaged in two boxes: length X1 = 585.0 mm, width Y1 = 170.0 mm, height H1 = 500.0 mm, and a volume of approximately 0.05 m³. 3 .

[0062] If a 40-foot high cube cabinet (76m³) is used 3 The existing integrated sofa backrest frame can hold approximately 877 boxes (76 / 0.078*90%), while the sofa backrest frame provided in this embodiment can hold approximately 1368 boxes (76 / 0.05*90%). It can be seen that the sofa backrest frame provided in this embodiment significantly increases the quantity of sofas transported per trip and significantly reduces transportation costs.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sofa backrest frame, characterized in that, include: The main skeleton (1) is a rectangular frame structure; Two connectors (2) are spaced apart on the frame body (1) along the width direction of the frame body (1); the first end of the connector (2) is detachably connected to the frame body (1), and the second end of the connector (2) is provided with a connector plug (3), which is configured to be inserted into the sofa body; Along the width direction of the main body of the skeleton (1), the first end of the connector (2) is offset from the second end of the connector (2).

2. The sofa backrest frame according to claim 1, characterized in that, The connector (2) is configured as a hollow square tube structure.

3. The sofa backrest frame according to claim 1, characterized in that, The connector (2) includes two connecting sections (21) and a transition section (22). The two ends of the transition section (22) are respectively connected to the two connecting sections (21). One of the two connecting sections (21) is detachably connected to the skeleton body (1) as the first end of the connector (2), and the other is connected to the connector plug (3) as the second end of the connector (2). The two connecting segments (21) are arranged in parallel, and the transition segment (22) is arranged at an angle to both connecting segments (21).

4. The sofa backrest frame according to claim 3, characterized in that, The transition section (22) is bent away from the other connector (2) from the first end of the connector (2), and the connecting plug (3) is detachably connected to the inner side of the connector (2) facing the other connector (2).

5. The sofa back frame according to claim 3, wherein the transition section (22) is bent toward the other connector (2) at the first end relative to the connector (2), and the connecting plug (3) is detachably connected to the outer side of the connector (2) away from the other connector (2).

6. The sofa backrest frame according to claim 3, characterized in that, It also includes multiple first fasteners (4); the connecting segment (21) has multiple connecting holes (23), and the skeleton body (1) has multiple fastening holes (11). When the connecting segment (21) is connected to the skeleton body (1) as the first end of the connector (2), the first fastener (4) passes through the connecting hole (23) and is screwed and fixed in the fastening hole (11).

7. The sofa backrest frame according to claim 6, characterized in that, It also includes a pad (5) and a plurality of second fasteners (6), the pad (5) being sandwiched between the second end of the connector (2) and the connector plug (3); The connector (3) has multiple first through holes (31), and the pad (5) has multiple second through holes (52). When the connecting segment (21) is connected to the connector (3) as the second end of the connector (2), the second fastener (6) passes through the first through hole (31), the second through hole (52) and the connecting hole (23), and is fixed to the connecting segment (21). The first fastener (4) and the second fastener (6) adopt the same type and size fastening structure.

8. The sofa backrest frame according to claim 7, characterized in that, The pad (5) is provided with multiple positioning parts (51), and the connecting section (21) is provided with multiple positioning holes (24). When the connecting section (21) is connected to the connecting plug (3) as the second end of the connector (2), the multiple positioning parts (51) are inserted into the multiple positioning holes (24) one by one.

9. A sofa backrest, characterized in that, It includes an outer covering and a sofa back frame as described in any one of claims 1-8, wherein the outer covering covers the sofa back frame.

10. A sofa, characterized in that, Includes the sofa body and the sofa back as described in claim 9.

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