A combined sofa support

Abstract

The application discloses a combined sofa support and relates to the technical field of sofas; a plurality of detachably connected support units are included; the support unit comprises a support main body and a supporting leg arranged on the bottom surface of the support main body; the support unit comprises two support modules and a first connecting piece connecting the two support modules; the support module comprises a first rod body and a second rod body, the second rod body is provided with two second rod bodies and is connected with the two ends of the first rod body respectively to form a U-shaped structure, and a plurality of third rod bodies are connected between the two second rod bodies; the first connecting piece connects the second rod bodies of the two support modules; the technical scheme provided by the application is convenient to install, the number of units can be flexibly increased or reduced according to the size of a sofa, different specifications of sofas can be adapted, and the universality is extremely strong.

Description

Technical Field

[0001] This application relates to the field of sofa technology, and more particularly to a modular sofa frame. Background Technology

[0002] In the furniture manufacturing industry, the sofa base frame, as a load-bearing structure, directly impacts production efficiency, transportation costs, and stability. Traditional sofa base frames are mostly one-piece or simply spliced ​​structures. One-piece frames are bulky, taking up more space during transportation and increasing logistics costs; installation requires multiple people working together, and the connection process is complex and time-consuming. Simple spliced ​​structures suffer from insufficient connection strength and low splicing precision, easily leading to abnormal noises and deformation during sofa use. Furthermore, the lack of precise, adaptable disassembly and assembly designs makes it difficult to effectively reduce costs and time during transportation and installation. Utility Model Content

[0003] The purpose of this application is to provide a modular sofa support to solve at least one of the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this application provides a modular sofa frame, including several detachably connected frame units;

[0005] The support unit includes a support body and support legs disposed on the bottom surface of the support body;

[0006] The support unit includes two support modules and a first connector connecting the two support modules;

[0007] The support module includes a first rod and a second rod. There are two second rods, which are respectively connected to the two ends of the first rod to form a U-shaped structure. Several third rods are connected between the two second rods.

[0008] The first connector connects the second rods of the two bracket modules;

[0009] In the aforementioned implementation process, this solution constructs the core framework of a modular sofa frame. Through the design of "several detachable support units," it fundamentally solves the core pain points of traditional one-piece sofa base frames. First, the detachable structure significantly optimizes the transportation process. Traditional one-piece base frames have limited loading capacity due to their fixed volume. In contrast, the support unit in this solution consists of two support modules connected by a first connector. Each support module itself is composed of a first rod, a second rod, and a third rod, meaning the entire structure is composed of long, rod-like structures. This increases the utilization rate of transportation space by more than 30%, directly reducing logistics costs. Second, installation convenience is significantly improved. Traditional one-piece base frames require multiple people to move and install, and are difficult to adjust due to space constraints. In contrast, a single support unit is lightweight and small, allowing for operation by a single person. Furthermore, the number of units can be flexibly increased or decreased according to the sofa size to accommodate different sofa sizes (such as single-seat, three-seat, and L-shaped sofas), making it highly versatile.

[0010] Preferably, a first mounting hole is provided on the side wall of the first rod and / or the second rod, and a first locking member is also included;

[0011] The first locking member is adapted to pass through the first mounting hole on two adjacent bracket units to fix the two adjacent bracket units;

[0012] In the aforementioned implementation process, this solution further enhances the connection stability of adjacent support units through the design of "first mounting hole + first locking element," while also ensuring flexibility in assembly and disassembly. Traditional sofa frame splicing often uses welding or one-time snap-fit ​​structures. Welding cannot be disassembled, which is not conducive to transportation and maintenance; one-time snap-fits are prone to wear and failure after repeated assembly and disassembly, leading to loose connections. In this design, the first mounting hole is located on the side wall of the first rod and / or the second rod. The location of the hole can be selected according to the stress requirements (such as adding a mounting hole on the side wall of the first rod where the stress is concentrated), ensuring that the connection point accurately corresponds to the stress area and improving the load-bearing capacity.

[0013] Preferably, a first limiting hole is formed on the second rod, and the third rod is adapted to be inserted into the first limiting hole;

[0014] In the above implementation process, in traditional structures, the connection between the third rod and the second rod often involves welding or drilling holes and then fixing with screws. Welding results in irremovable parts and large assembly errors, while screw fixing requires aligning the holes before installation, which is cumbersome and prone to low assembly efficiency due to hole misalignment. In this solution, the first limiting hole on the second rod provides a precise positioning reference for the third rod. The third rod can be directly inserted into the limiting hole without additional alignment adjustments, allowing for assembly by a single person and effectively improving assembly efficiency. After the third rod is inserted into the limiting hole, it forms a perpendicular force-bearing structure with the second rod. When the support module is subjected to torsional force (such as torsion caused by excessive force on one side of a sofa), the third rod can transmit the force through the limiting hole, preventing the second rod from deforming under independent force, thus ensuring the structural integrity of the entire support module. From a maintenance perspective, if the third rod is damaged, it can be replaced simply by pulling out the old rod and inserting the new one, without disassembling the entire module, significantly improving maintenance convenience.

[0015] Preferably, a second limiting hole is formed at the end of the second rod, and a first connecting piece is provided on the side of the first rod near the end and facing the second rod, the first connecting piece being adapted to be inserted into the second limiting hole;

[0016] A second mounting hole communicating with the second limiting hole is provided on the side wall of the second rod, and a third mounting hole is formed through the first connecting piece along its thickness direction;

[0017] When the first connecting piece is inserted into the second limiting hole, the second mounting hole is aligned with the third mounting hole; it also includes a second locking member adapted to pass through the second mounting hole and the third mounting hole, the second locking member being adapted to fix the first connecting piece to the second rod body;

[0018] In the above implementation process, in this solution, the first connecting piece is located near the end of the first rod and facing the second rod. It can be directly inserted into the second limiting hole at the end of the second rod. This structure first achieves precise positioning: the shape of the limiting hole matches the connecting piece, ensuring that the first rod and the second rod maintain a preset angle (such as 90° perpendicular) when connected, avoiding deformation of the U-shaped structure caused by assembly deviation, and thus ensuring the flatness of the sofa seat. Secondly, the second mounting hole (opened on the side wall of the second rod and connected to the second limiting hole) and the third mounting hole (penetrating through the thickness direction of the first connecting piece) automatically align after the connecting piece is inserted. The second locking member passes through the two holes for fixation, forming a double fixing structure of "insertion positioning + screw locking". Compared with the traditional single connection method, the connection strength is significantly improved. Furthermore, compared with the connection method using angle iron, this solution allows for quick visual initial positioning, making assembly more convenient and faster.

[0019] Preferably, the first rod has a first inclined portion formed at both ends; the second rod has a second inclined portion adapted to the first inclined portion at one end near the first rod, and a flat portion at the other end;

[0020] It also includes an L-shaped connector and several third locking components. The two sides of the L-shaped connector are respectively connected to the first rod and the second rod, and the third locking components lock the L-shaped connector to the first rod and the second rod.

[0021] In the above implementation process, the first and second inclined surfaces of the first and second rods in this solution fit together, and are further locked and fixed by an L-shaped connector and a third locking component, transforming the corners into rigid connections, distributing the force, and ensuring the stability of the frame. In the later maintenance process, if the first or second rod needs to be replaced or repaired, the staff only needs to loosen the third locking component to separate the L-shaped connector from the rod and perform the corresponding maintenance operation. The operation is convenient and efficient, without the need to disassemble the entire frame, reducing maintenance costs and difficulty, and improving the maintainability of the sofa frame.

[0022] Preferably, the first connector includes a rod body and second connecting pieces disposed at both ends of the rod body. The connecting pieces form two fourth mounting holes, which are distributed on both sides of the connection between the second connecting piece and the second rod body.

[0023] A fifth mounting hole is formed on the second rod;

[0024] It also includes a fourth locking member suitable for passing through the fourth mounting hole and the fifth mounting hole;

[0025] The fourth locking element is adapted to lock the second connecting piece and the second rod body;

[0026] In the above implementation process, the first connector in this solution has two fourth mounting holes on its connecting plate distributed on both sides of the connection between the connecting plate and the second rod. This double-hole design forms a two-point fixed connection between the connecting plate and the second rod. When the two frame units are connected through the first connector, the force can be evenly transmitted to the connecting plate and the second rod through the two fourth mounting holes, significantly increasing the force-bearing area of ​​the connection and avoiding stress concentration. At the same time, the fourth locking member passes through the fourth and fifth mounting holes to firmly lock the first connector and the second rod, forming a rigid connection structure. This structure can effectively resist various external forces such as tension, compression, and torsion generated during sofa use, ensuring the firmness and stability of the connection between the two frame units, significantly improving the structural strength and deformation resistance of the entire sofa frame, and extending the service life of the sofa. In addition, the structural design of the first connector also simplifies the installation process. The close-fitting connection between the connecting plate and the second rod, as well as the alignment of the fourth and fifth mounting holes, are simple and intuitive. Workers can quickly complete the connection and fixation of the first connector and the second rod without performing complex measurement and positioning operations. Compared to traditional methods that require complex welding or multi-step bolt connections, the connection method described in this claim is more convenient and efficient, and can be installed by a single person, significantly shortening the assembly time of the sofa frame, improving the overall efficiency of sofa production, and reducing production labor costs.

[0027] Preferably, a sixth mounting hole is formed longitudinally on the first rod and the second rod;

[0028] A seventh mounting hole is formed on the support foot; it also includes a fifth locking member adapted to pass through the sixth mounting hole and the seventh mounting hole, the fifth locking member being adapted to fix the support foot to the first rod and / or the second rod;

[0029] In the above implementation process, by setting mounting holes on the first rod, the second rod, and the support leg respectively, and cooperating with the fifth locking component to achieve a fixed connection between the support leg and the rod, significant technical improvements have been made in terms of connection reliability and structural stability of the support leg installation. The fifth locking component passes through the sixth and seventh mounting holes to fix the support leg to the first or second rod. This rigid connection method can ensure the firmness of the connection between the support leg and the rod. During long-term use of the sofa, even if it is subjected to frequent external impacts (such as the impact force when the user gets up or sits down), the support leg can maintain a stable connection with the rod, and there will be no situation such as the sofa shaking or tilting due to the loosening of the support leg, which provides a reliable guarantee for the stable use of the sofa. In addition, the detachable connection between the support leg and the rod also brings convenience to the transportation and maintenance of the sofa frame. During transportation, the support legs can be detached from the frame and transported separately, further reducing space occupation and lowering transportation costs. In later maintenance, if a support leg is damaged, it can be replaced simply by loosening the fifth locking component, without needing to replace the entire frame, thus reducing maintenance costs and complexity. Furthermore, this connection method facilitates the replacement of support legs of different materials, heights, or styles to meet varying usage needs, enabling personalized design and functional upgrades for sofa products and enhancing their market competitiveness.

[0030] Preferably, the support foot is made of wood and has an anti-slip pad at the bottom;

[0031] In the aforementioned process, regarding user experience, wood possesses natural toughness and a certain degree of elasticity. Compared to traditional metal support legs, wooden support legs can better absorb and cushion external impacts during sofa use. When users get up, sit down, or engage in slight activities on the sofa, the wooden support legs can convert some of the impact force into minor deformation, which is then recovered through their elasticity, effectively reducing the impact on the sofa frame and the ground. On the one hand, this reduces the risk of the sofa frame structure loosening and making abnormal noises due to excessive impact, extending the service life of the sofa frame; on the other hand, it also avoids the harsh noise generated when metal support legs collide with the ground, creating a quieter and more comfortable user environment. In terms of environmental performance, high-quality wood materials are mostly derived from renewable forestry resources, and compared to the smelting of metal materials and the synthesis of plastic materials, it generates relatively less energy consumption and environmental pollution during processing. Anti-slip pads are usually made of materials with high friction coefficients, such as rubber and silicone, and their surfaces have good anti-slip properties. When anti-slip pads are installed on the bottom of the support legs, they can significantly increase the friction between the support legs and the ground, effectively limiting the horizontal displacement of the sofa. Even when the user makes significant movements or the floor experiences slight vibrations, the sofa maintains a stable position without slipping or shifting, significantly improving its stability and safety, and providing a more reliable and comfortable user experience. Furthermore, the anti-slip pads are soft and smooth (relative to the support legs themselves), forming a buffer barrier between the support legs and the floor. When the sofa is placed on the floor, the anti-slip pads prevent direct contact between the support legs and the floor, preventing scratches, indentations, and other damage.

[0032] Preferably, the top surface of the support unit is provided with Velcro;

[0033] Preferably, a plurality of eighth mounting holes are provided at intervals along the length direction on the top surface of the first rod and / or the second rod;

[0034] It also includes a sixth locking member adapted to pass through the hook and loop fastener and the eighth mounting hole, the sixth locking member being adapted to fix the hook and loop fastener to the bracket unit.

[0035] In the aforementioned implementation process, this solution adds Velcro to the top surface of the support unit, optimizing the user experience from the "soft connection" stage of sofa assembly. This solves the problems of "poor fixation between seat cushions / backrests and the bottom frame, and easy displacement" in traditional sofas, while also improving the convenience of assembly and maintenance. The "sticking-separating" operation of the Velcro requires no tools; users simply align and stick the corresponding Velcro on the seat cushion / backrest with the Velcro on the top surface of the support unit. A single person can complete the fixation of a single seat cushion within 10 seconds, resulting in high installation efficiency.

[0036] Compared with existing technologies, the beneficial effects of this application are as follows: This solution constructs the core framework of a modular sofa frame, fundamentally solving the core pain points of traditional integrated sofa base frames through the design of "several detachable support units". First, the detachable structure significantly optimizes the transportation process. Traditional integrated base frames have a fixed volume, limiting the loading capacity for a single transport. In this solution, the support unit is composed of two support modules connected by a first connector, and the support module itself is composed of a first rod, a second rod, and a third rod. That is, the overall structure consists of long, rod-like structures, which can increase the utilization rate of transportation space by more than 30%, directly reducing logistics costs. Second, the ease of installation is significantly improved. Traditional integrated base frames require multiple people to move and install, and are difficult to adjust due to space constraints. In contrast, a single support unit is lightweight and small in size, allowing for operation by a single person. At the same time, the number of units can be flexibly increased or decreased according to the sofa size to adapt to different sofa sizes (such as single-seat, three-seat, and L-shaped sofas), making it highly versatile. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application;

[0039] Figure 2 yes Figure 1 Enlarged structural diagram of section A;

[0040] Figure 3 This is a schematic diagram of the structure of a support unit according to one embodiment of this application;

[0041] Figure 4 This is an exploded structural diagram of one embodiment of this application;

[0042] Figure 5 yes Figure 4 Enlarged structural diagram of section B;

[0043] Figure 6 This is a partial structural schematic diagram of one embodiment of this application;

[0044] Figure 7 yes Figure 6 Enlarged structural diagram of section C;

[0045] Figure 8 This is a schematic diagram of the structure of a connector according to one embodiment of this application;

[0046] Figure 9 This is a schematic diagram of the structure of the second rod in one embodiment of this application;

[0047] The components are as follows: 10. Bracket unit; 11. Bracket body; 12. Support foot; 121. Anti-slip pad; 13. First mounting hole; 14. First locking element; 15. First limiting hole; 16. Sixth mounting hole; 17. Seventh mounting hole; 18. Fifth locking element; 20. Bracket module; 21. First rod; 211. First connecting piece; 2111. Third mounting hole; 212. First inclined part; 22. Second rod; 221. Second limiting hole; 222. Second mounting hole; 223. Second locking element; 224. Second inclined part; 225. Flat part; 226. L-shaped connector; 227. Third locking element; 23. Third rod; 30. First connector; 31. Rod part; 32. Second connecting piece; 40. Velcro; 41. Eighth mounting hole; 42. Sixth locking element;

[0048] C1, first direction; C2, second direction. Detailed Implementation

[0049] The following drawings disclose several embodiments of this application. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this application. That is, in some embodiments of this application, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0050] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0051] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit this application. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0052] To further understand the utility model content, features, and effects of this application, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0053] Example

[0054] In the furniture manufacturing industry, the sofa base frame, as a load-bearing structure, directly affects the sofa's production efficiency, transportation costs, and stability. Traditional sofa base frames are mostly one-piece or simply spliced ​​structures. One-piece frames are bulky, occupying more space during transportation and increasing logistics costs; installation requires multiple people and involves complex and time-consuming connection processes. Simple spliced ​​structures suffer from insufficient connection strength and low splicing precision, easily leading to abnormal noises and deformation during sofa use. Furthermore, the lack of precise and adaptable disassembly and assembly designs makes it difficult to effectively reduce costs and time during transportation and installation. To solve the above technical problems, this embodiment provides the following technical solution:

[0055] For details, please see Figure 1-9 This embodiment provides a modular sofa support, including several detachably connected support units 10;

[0056] Specifically, the support unit 10 includes a support body 11 and support feet 12 disposed on the bottom surface of the support body 11;

[0057] Specifically, the support unit 10 includes two support modules 20 and a first connector 30 connecting the two support modules 20;

[0058] Furthermore, the support module 20 includes a first rod 21 and a second rod 22. Two second rods 22 are provided and are respectively connected to the two ends of the first rod 21 to form a U-shaped structure. Several third rods 23 are connected between the two second rods 22.

[0059] Specifically, the first connector 30 connects the second rods 22 of the two support modules 20;

[0060] In the above solution, the core framework of the modular sofa frame is constructed. Through the design of "several detachable support units 10," the core pain points of traditional integrated sofa base frames are fundamentally solved. Firstly, the detachable structure significantly optimizes the transportation process. Traditional integrated base frames have a fixed volume, limiting the load capacity for a single transport. In this solution, support unit 10 is composed of two support modules 20 connected by a first connector 30. Each support module 20 itself is composed of a first rod 21, a second rod 22, and a third rod 23, meaning the entire structure consists of long, rod-like structures. This increases the utilization rate of transportation space by more than 30%, directly reducing logistics costs. Secondly, installation convenience is significantly improved. Traditional integrated base frames require multiple people to move and install, and are difficult to adjust due to space constraints. In contrast, a single support unit 10 is lightweight and small, allowing for operation by a single person. Furthermore, the number of units can be flexibly increased or decreased according to the sofa size, adapting to different sofa sizes (such as single-seat, three-seat, and L-shaped sofas), making it highly versatile.

[0061] For details, please see Figure 1-2 A first mounting hole 13 is provided on the side wall of the first rod 21 and / or the second rod 22, and a first locking member 14 is also included;

[0062] Furthermore, the first locking member 14 is adapted to pass through the first mounting hole 13 on the two adjacent support units 10 to fix the two adjacent support units 10.

[0063] In the above-mentioned solution, the design of "first mounting hole 13 + first locking element 14" further enhances the connection stability of adjacent support units 10, while also ensuring flexibility in assembly and disassembly. Traditional sofa frame splicing often uses welding or one-time snap-fit ​​structures. Welding cannot be disassembled, which is not conducive to transportation and maintenance; one-time snap-fits are prone to wear and failure after repeated assembly and disassembly, resulting in loose connections. In this design, the first mounting hole 13 is opened on the side wall of the first rod 21 and / or the second rod 22. The opening position can be selected according to the stress requirements (such as adding a mounting hole on the side wall of the first rod 21 where the stress is concentrated), ensuring that the connection point accurately corresponds to the stress area and improving the load-bearing capacity.

[0064] Specifically, a first limiting hole 15 is formed on the second rod 22, and the third rod 23 is adapted to be inserted into the first limiting hole 15;

[0065] In the above solution, the traditional structure often connects the third rod 23 and the second rod 22 by welding or drilling holes and then fixing with screws. Welding is not removable and has large assembly errors, while screw fixing requires aligning the holes before installation, which is cumbersome and prone to low assembly efficiency due to hole misalignment. In this solution, the first limiting hole 15 on the second rod 22 provides a precise positioning reference for the third rod 23. The third rod 23 can be directly inserted into the limiting hole without additional alignment adjustments, and assembly can be completed by a single person, effectively improving assembly efficiency. After the third rod 23 is inserted into the limiting hole, it forms a perpendicular force-bearing structure with the second rod 22. When the support module 20 is subjected to torsional force (such as torsion caused by excessive force on one side of the sofa), the third rod 23 can transmit the force through the limiting hole, preventing the second rod 22 from deforming under independent force, thereby ensuring the structural integrity of the entire support module 20. From a maintenance perspective, if the third rod 23 is damaged, it can be replaced simply by pulling out the old rod and inserting the new rod, without disassembling the entire module, significantly improving maintenance convenience.

[0066] In one embodiment, the third rod 23 is a round rod, the first limiting hole 15 is a round hole, and the diameter of the first limiting hole 15 is slightly larger than that of the third rod 23.

[0067] Furthermore, in one embodiment, see... Figure 9 Hook structures are formed at both ends of the third rod 23, and slots adapted to the hook structures are formed on the second rod 22. The third rod 23 can be inserted into the slots through the hook structures.

[0068] For details, please see Figure 6-7 A second limiting hole 221 is formed at the end of the second rod 22, and a first connecting piece 211 is provided on the side of the first rod 21 near the end and facing the second rod 22. The first connecting piece 211 is adapted to be inserted into the second limiting hole 221.

[0069] Furthermore, a second mounting hole 222 communicating with the second limiting hole 221 is provided on the side wall of the second rod body 22, and a third mounting hole 2111 is formed through the first connecting piece 211 along its thickness direction.

[0070] Specifically, when the first connecting piece 211 is inserted into the second limiting hole 221, the second mounting hole 222 is aligned with the third mounting hole 2111; it also includes a second locking member 223 adapted to pass through the second mounting hole 222 and the third mounting hole 2111, the second locking member 223 being adapted to fix the first connecting piece 211 to the second rod body 22;

[0071] In the above-mentioned solution, the first connecting piece 211 is located on the side of the first rod 21 near the end and facing the second rod 22. It can be directly inserted into the second limiting hole 221 at the end of the second rod 22. This structure firstly achieves precise positioning: the shape of the limiting hole matches the connecting piece, ensuring that the first rod 21 and the second rod 22 can maintain a preset angle (such as 90° perpendicular) when connected, avoiding deformation of the U-shaped structure caused by assembly deviation, thereby ensuring the flatness of the sofa seat surface. Secondly, the second mounting hole 222 (opened on the side wall of the second rod 22 and connected to the second limiting hole 221) and the third mounting hole 2111 (penetrating through the thickness direction of the first connecting piece 211) automatically align after the connecting piece is inserted. The second locking member 223 passes through the two holes for fixation, forming a double fixing structure of "insertion positioning + screw locking". Compared with the traditional single connection method, the connection strength is significantly improved. Furthermore, compared with the connection method using angle iron, this solution can quickly achieve preliminary positioning by sight, making assembly more convenient and faster.

[0072] Specifically, in another embodiment, the first rod 21 and the second rod 22 can adopt a different connection scheme, please refer to [link to relevant documentation]. Figure 4-5 The first rod 21 has a first inclined portion 212 formed at both ends; the second rod 22 has a second inclined portion 224 adapted to the first inclined portion 212 at one end near the first rod 21, and a flat portion 225 at the other end.

[0073] Furthermore, it also includes an L-shaped connector 226 and several third locking members 227. The two sides of the L-shaped connector 226 are respectively connected to the first rod 21 and the second rod 22, and the third locking members 227 lock the L-shaped connector 226 to the first rod 21 and the second rod 22. It can be understood that the L-shaped connector 226 can be understood as an angle iron, and both sides of the angle iron have mounting holes, and the first rod 21 and the second rod 22 also have corresponding mounting holes.

[0074] In the above solution, the first inclined surface 212 and the second inclined surface 224 between the first rod 21 and the second rod 22 fit together, and are further locked and fixed by the L-shaped connector 226 and the third locking piece 227, transforming the corner into a rigid connection, distributing the force, and ensuring the stability of the frame. In the later maintenance process, if the first rod 21 or the second rod 22 needs to be replaced or repaired, the staff only needs to loosen the third locking piece 227 to separate the L-shaped connector from the rod and perform the corresponding maintenance operation. The operation is convenient and efficient, without the need to disassemble the entire frame, reducing maintenance costs and difficulty, and improving the maintainability of the sofa frame.

[0075] For details, please see Figure 8The first connector 30 includes a rod body 31 and a second connecting piece 32 disposed at both ends of the rod body 31. The connecting piece forms two fourth mounting holes, which are distributed on both sides of the connection between the second connecting piece 32 and the second rod body 22.

[0076] Specifically, a fifth mounting hole is formed on the second rod 22;

[0077] Furthermore, it also includes a fourth locking member (not shown in the figure) suitable for passing through the fourth mounting hole and the fifth mounting hole.

[0078] Specifically, the fourth locking element is adapted to lock the second connecting piece 32 and the second rod 22;

[0079] In the above-mentioned solution, the first connector 30 has two fourth mounting holes on its connecting plate located on both sides of the connection between the connecting plate and the second rod 22. This double-hole design creates a two-point fixed connection between the connecting plate and the second rod 22. When the two frame units are connected through the first connector 30, the force can be evenly transmitted to the connecting plate and the second rod 22 through the two fourth mounting holes, significantly increasing the stress-bearing area of ​​the connection and avoiding stress concentration. At the same time, the fourth locking member passes through the fourth and fifth mounting holes to firmly lock the first connector 30 and the second rod 22, forming a rigid connection structure. This structure can effectively resist various external forces such as tension, compression, and torsion generated during sofa use, ensuring the firmness and stability of the connection between the two frame units. This significantly improves the structural strength and deformation resistance of the entire sofa frame and extends the service life of the sofa. In addition, the structural design of the first connector 30 also simplifies the installation process. The fitting connection between the connecting piece and the second rod 22, as well as the alignment of the fourth and fifth mounting holes, is simple and intuitive. Workers can quickly connect and fix the first connecting piece 30 to the second rod 22 without complex measurement and positioning operations. Compared to traditional methods requiring complex welding or multi-step bolt connections, the connection method in this claim is more convenient and efficient, allowing for installation by a single person. This significantly shortens the assembly time of the sofa frame, improves the overall efficiency of sofa production, and reduces production labor costs.

[0080] For details, please see Figure 4-5 A sixth mounting hole 16 is formed longitudinally on the first rod 21 and the second rod 22;

[0081] Furthermore, a seventh mounting hole 17 is formed on the support foot 12; it also includes a fifth locking member 18 adapted to pass through the sixth mounting hole 16 and the seventh mounting hole 17, the fifth locking member 18 being adapted to fix the support foot 12 to the first rod 21 and / or the second rod 22;

[0082] In the above solution, mounting holes are provided on the first rod 21, the second rod 22, and the support leg 12, respectively, and the fifth locking member 18 is used to achieve a fixed connection between the support leg 12 and the rod. This brings significant technical improvements in terms of connection reliability and structural stability of the support leg 12. The fifth locking member 18 passes through the sixth mounting hole 16 and the seventh mounting hole 17 to fix the support leg 12 to the first rod 21 or the second rod 22. This rigid connection method can ensure the firmness of the connection between the support leg 12 and the rod. During long-term use of the sofa, even if it is subjected to frequent external impacts (such as the impact force when the user gets up or sits down), the support leg 12 can maintain a stable connection with the rod, and there will be no shaking or tilting of the sofa due to the loosening of the support leg 12, which provides a reliable guarantee for the stable use of the sofa. In addition, the detachable connection between the support leg 12 and the rod also brings convenience to the transportation and maintenance of the sofa frame. During transportation, the support leg 12 can be detached from the rod and transported separately from the frame body, further reducing transportation space occupation and lowering transportation costs. In later maintenance, if the support leg 12 is damaged, it can be replaced simply by loosening the fifth locking piece 18, without needing to replace the entire frame body, thus reducing maintenance costs and difficulty. At the same time, this connection method also facilitates the replacement of support legs 12 with different materials, heights, or styles according to different usage needs, providing possibilities for personalized design and functional upgrades of sofa products, and enhancing the market competitiveness of sofa products.

[0083] Specifically, in one embodiment, the support foot 12 is made of wood and has an anti-slip pad 121 at the bottom.

[0084] In the above solution, regarding user experience, wood has natural toughness and a certain degree of elasticity. Compared with traditional metal support legs 12, wooden support legs 12 can better absorb and buffer external impacts during sofa use. When the user gets up, sits down, or performs slight movements on the sofa, the wooden support legs 12 can convert some of the impact force into their own slight deformation, and then recover through their own elasticity, effectively reducing the impact force on the sofa frame and the ground. On the one hand, it reduces the risk of the sofa frame structure becoming loose and making abnormal noises due to excessive impact force, extending the service life of the sofa frame; on the other hand, it also avoids the harsh noise generated when the metal support legs 12 collide with the ground, creating a quieter and more comfortable user environment. In terms of environmental performance, high-quality wood materials mostly come from renewable forestry resources, and in the processing, compared with the smelting of metal materials and the synthesis of plastic materials, it generates relatively less energy consumption and environmental pollution. The anti-slip pads 121 are usually made of materials with high friction coefficients such as rubber and silicone, and their surfaces have good anti-slip properties. When the anti-slip pad 121 is installed at the bottom of the support leg 12, it significantly increases the friction between the support leg 12 and the ground, effectively limiting the sofa's horizontal displacement. Even when the user makes large movements or the ground experiences slight vibrations, the sofa maintains a stable position without slipping or shifting, significantly improving the stability and safety of the sofa and providing users with a more reliable and comfortable experience. Furthermore, the anti-slip pad 121 is soft and has a smooth surface (relative to the support leg 12 itself), forming a buffer barrier between the support leg 12 and the ground. When the sofa is placed on the ground, the anti-slip pad 121 prevents direct contact between the support leg 12 and the ground, preventing scratches, indentations, and other damage to the ground caused by the support leg 12.

[0085] The locking components mentioned in this solution can be understood as various types of locking screws, which are adjusted according to the actual application. They are relatively mature technologies in the existing technology, so this solution will not elaborate on or limit them further.

[0086] For details, please see Figure 9 Velcro 40 is provided on the top surface of the support unit 10;

[0087] Furthermore, a plurality of eighth mounting holes 41 are provided at intervals along the length direction on the top surface of the first rod 21 and / or the second rod 22;

[0088] Specifically, it also includes a sixth locking member 42 adapted to pass through the Velcro 40 and the eighth mounting hole 41, the sixth locking member 42 being adapted to fix the Velcro 40 to the bracket unit 10.

[0089] In the above solution, a Velcro 40 is added to the top surface of the support unit 10, optimizing the user experience from the "soft connection" stage of sofa assembly. This solves the problem of "poor fixation between seat cushions / backrests and the bottom frame, and easy displacement" in traditional sofas, while also improving the convenience of assembly and maintenance. The "sticking-separating" operation of the Velcro 40 requires no tools. Users only need to align and stick the corresponding Velcro 40 on the seat cushion / backrest with the Velcro 40 on the top surface of the support unit 10. A single person can complete the fixation of a single seat cushion within 10 seconds, resulting in high installation efficiency.

[0090] In one embodiment, the axial directions of the first rod 21 and the third rod 23 are parallel to the first direction, the axial direction of the second rod 22 is parallel to the second direction, and the first direction and the second direction are perpendicular to each other.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application shall fall within the scope of the technical solution of this application.

Claims

1. A modular sofa frame, characterized in that: Includes several detachable support units; The support unit includes a support body and support legs disposed on the bottom surface of the support body; The support unit includes two support modules and a first connector connecting the two support modules; The support module includes a first rod and a second rod. There are two second rods, which are respectively connected to the two ends of the first rod to form a U-shaped structure. Several third rods are connected between the two second rods. The first connector connects the second rods of the two bracket modules.

2. The modular sofa frame according to claim 1, characterized in that: A first mounting hole is provided on the side wall of the first rod and / or the second rod, and a first locking member is also included; The first locking member is adapted to pass through a first mounting hole on two adjacent bracket units to fix the two adjacent bracket units.

3. The modular sofa frame according to claim 1, characterized in that: A first limiting hole is formed on the second rod, and the third rod is adapted to be inserted into the first limiting hole.

4. The modular sofa frame according to claim 1, characterized in that: A second limiting hole is formed at the end of the second rod, and a first connecting piece is provided on the side of the first rod near the end and facing the second rod. The first connecting piece is adapted to be inserted into the second limiting hole. A second mounting hole communicating with the second limiting hole is provided on the side wall of the second rod body, and a third mounting hole is formed through the first connecting piece along its thickness direction; When the first connecting piece is inserted into the second limiting hole, the second mounting hole is aligned with the third mounting hole; it also includes a second locking member adapted to pass through the second mounting hole and the third mounting hole, the second locking member being adapted to fix the first connecting piece to the second rod body.

5. The modular sofa frame according to claim 1, characterized in that: The first rod has a first inclined portion formed at both ends; the second rod has a second inclined portion adapted to the first inclined portion at one end near the first rod, and a flat portion at the other end; It also includes an L-shaped connector and several third locking components. The two sides of the L-shaped connector are respectively connected to the first rod and the second rod, and the third locking components lock the L-shaped connector to the first rod and the second rod.

6. The modular sofa frame according to claim 1, characterized in that: The first connector includes a rod body and second connecting pieces disposed at both ends of the rod body. The connecting pieces form two fourth mounting holes, which are distributed on both sides of the connection between the second connecting piece and the second rod body. A fifth mounting hole is formed on the second rod; It also includes a fourth locking member suitable for passing through the fourth mounting hole and the fifth mounting hole; The fourth locking element is adapted to lock the second connecting piece and the second rod.

7. The modular sofa frame according to claim 1, characterized in that: A sixth mounting hole is formed longitudinally on the first rod and the second rod; A seventh mounting hole is formed on the support foot; it also includes a fifth locking member adapted to pass through the sixth mounting hole and the seventh mounting hole, the fifth locking member being adapted to fix the support foot to the first rod and / or the second rod.

8. The modular sofa frame according to claim 7, characterized in that: The support feet are made of wood and have anti-slip pads at the bottom.

9. The modular sofa frame according to any one of claims 1-8, characterized in that: Velcro is provided on the top surface of the support unit.

10. The modular sofa frame according to claim 9, characterized in that: A plurality of eighth mounting holes are provided at intervals along the length direction on the top surface of the first rod and / or the second rod; It also includes a sixth locking member adapted to pass through the hook and loop fastener and the eighth mounting hole, the sixth locking member being adapted to fix the hook and loop fastener to the bracket unit.

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