A sofa having a resilient support structure

Abstract

The utility model discloses a sofa with elastic support structure, including seat subassembly, set up in the side department of seat subassembly armrest subassembly and set up in the back of seat subassembly backrest subassembly, seat subassembly includes elastic support structure, and elastic support structure includes frame, breathable mesh cloth layer and a plurality of elastic connecting pieces, breathable mesh cloth layer and frame are interval arrangement of inside and outside, a plurality of elastic connecting pieces are along the interval distribution of breathable mesh cloth layer periphery, and are connected with breathable mesh cloth layer and frame respectively to be suspended and tensioned on the frame with breathable mesh cloth layer, the sofa with elastic support structure provided by the utility model, through the breathable mesh cloth layer is suspended and tensioned on the frame through a plurality of along the peripheral interval distribution elastic connecting piece, has realized the even steady support performance, has effectively avoided the uneven problem of partial collapse of traditional spring structure in long -term pressure.

Description

Technical Field

[0001] This utility model relates to the field of furniture manufacturing technology, and in particular to a sofa with an elastic support structure. Background Technology

[0002] In sofa design and manufacturing, the internal support structure of the seat cushion is a key technological component that determines the overall comfort, support performance, and lifespan of the sofa. Currently, the common sofa seat cushion support structures mainly include the following: The first type is the traditional spring support structure, which usually uses serpentine springs or individual pocket springs. This type of structure reveals several problems during use: First, after long-term pressure, the surface of the seat cushion may partially collapse, affecting the overall flatness and evenness of support of the sofa; second, during the user's sitting or lying down, adjacent springs may generate friction noise due to mutual compression, affecting the quietness of the user experience.

[0003] The second type is the wooden board support structure, often found in sofas of certain styles. This structure is based on wood panels and has good stability. However, its main drawback is that the overall structure is relatively rigid and lacks effective elastic cushioning, resulting in a stiff feel and poor comfort. In addition, this structure has poor breathability, which easily causes moisture and heat to accumulate inside the seat cushion.

[0004] Therefore, there is an urgent need in this field for a new type of sofa that can solve the above problems. Utility Model Content

[0005] The main purpose of this invention is to provide a sofa with an elastic support structure to solve the above-mentioned technical problems.

[0006] In a first aspect, this utility model provides a sofa with an elastic support structure, including a seat assembly, an armrest assembly disposed on the side of the seat assembly, and a backrest assembly disposed at the rear of the seat assembly; the seat assembly includes an elastic support structure, which includes a frame, a breathable mesh layer, and a plurality of elastic connectors; the breathable mesh layer and the frame are arranged at intervals; the plurality of elastic connectors are distributed at intervals along the periphery of the breathable mesh layer and are respectively connected to the breathable mesh layer and the frame to suspend and tension the breathable mesh layer on the frame.

[0007] The breathable mesh layer is a PVC-coated polyester fiber woven mesh.

[0008] The shape of the breathable mesh layer is adapted to the inner contour of the frame.

[0009] The breathable mesh layer is circular or polygonal in shape.

[0010] The elastic connector is a tension spring.

[0011] The breathable mesh layer has multiple spaced connecting parts fixedly arranged along its periphery. One end of the elastic connector is detachably connected to the corresponding connecting part, and the other end is detachably connected to the frame.

[0012] The connecting part is a ring.

[0013] The frame has multiple spaced-apart hooks fixedly arranged along its perimeter, and the other end of the elastic connector is detachably connected to the corresponding hook.

[0014] The hook-and-hold part is a limiting hole that passes through the bottom surface of the frame. The elastic connector has hook-shaped parts at both ends. The hook-shaped part at one end is hooked into the through hole of the ring buckle, and the hook-shaped part at the other end is hooked into the limiting hole.

[0015] The plurality of hooks are formed on the frame in at least two rings, inner and outer.

[0016] Secondly, this utility model also provides a sofa with an elastic support structure, including a seat assembly, an armrest assembly disposed on the side of the seat assembly, and a backrest assembly disposed at the rear of the seat assembly; the backrest assembly includes an elastic support structure, which includes a frame, a breathable mesh layer, and a plurality of elastic connectors; the breathable mesh layer and the frame are arranged at intervals; the plurality of elastic connectors are distributed at intervals along the periphery of the breathable mesh layer and are respectively connected to the breathable mesh layer and the frame to suspend and tension the breathable mesh layer on the frame.

[0017] The breathable mesh layer has multiple spaced connecting parts fixedly arranged along its periphery; the frame has multiple spaced hanging parts fixedly arranged along its periphery; one end of the elastic connector is detachably connected to the corresponding connecting part, and the other end is detachably connected to the corresponding hanging part.

[0018] The beneficial technical effects of this utility model are as follows: The sofa with an elastic support structure provided by this utility model achieves uniform and stable support performance by suspending and tensioning the breathable mesh layer to the frame through multiple elastic connectors spaced apart along the perimeter. This effectively avoids the problem of uneven support caused by local collapse due to long-term pressure in traditional spring structures. Simultaneously, because the elastic connectors are spatially separated and do not contact each other, friction noise between adjacent components is avoided, improving the quietness and user experience. Furthermore, this structure provides excellent elastic cushioning and rebound performance, overcoming the rigidity and harshness defects of wooden board support structures. The breathable mesh layer itself is breathable, preventing moisture and heat accumulation and improving comfort. In summary, this utility model has a simple structure and solves multiple problems of existing sofa support structures in terms of support uniformity, comfort, quietness, and breathability, improving the overall performance of the product and the user experience. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A top view of a sofa provided for an embodiment of this utility model; Figure 2 A three-dimensional schematic diagram of the elastic support structure in a sofa provided in an embodiment of this utility model; Figure 3 A bottom view of the elastic support structure in the sofa provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of another shape of the elastic support structure in the sofa provided in an embodiment of the present utility model; Figure 5 This is another front view schematic diagram of a sofa provided for an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures: In the diagram: 10-elastic support structure, 20-frame, 30-breathable mesh layer, 40-elastic connector, 41-hook-shaped part, 32-ring buckle, 33-through hole, 22-limiting hole, 60-seat assembly, 70-armrest assembly, 80-backrest assembly. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] Please also refer to Figures 1-4 This utility model provides a sofa with an elastic support structure, aiming to solve the problems of existing sofas, such as difficulty in balancing support and comfort, easy local sagging after long-term use, and poor breathability. The sofa includes a seat assembly 60, armrest assemblies 70 disposed on the sides of the seat assembly 60, and a backrest assembly 80 disposed at the rear of the seat assembly 60. The seat assembly 60 includes an elastic support structure 10, which includes a frame 20, a breathable mesh layer 30, and multiple elastic connectors 40. The breathable mesh layer 30 and the frame 20 are spaced apart. The multiple elastic connectors 40 are distributed at intervals along the periphery of the breathable mesh layer 30 and are respectively connected to the breathable mesh layer 30 and the frame 20 to suspend and tension the breathable mesh layer 30 on the frame 20.

[0027] In this embodiment, the armrest assembly 70 provides arm support for the user, and the backrest assembly 80 provides back support. The improvement in this embodiment lies in the internal structure of the seat assembly 60.

[0028] The seat assembly 60 includes an elastic support structure 10 inside. Specifically, the elastic support structure 10 serves as the load-bearing skeleton of the seat assembly 60, and its frame 20 can be directly used as the overall frame of the seat assembly 60, or fixed inside the seat assembly 60 by means of screws, welding, etc.

[0029] The elastic support structure 10 includes a frame 20, a breathable mesh layer 30, and multiple elastic connectors 40.

[0030] The frame 20 is the basic skeleton of the entire elastic support structure 10, providing a foundation for the installation and support of other components. The frame 20 defines the overall outline and dimensions of the elastic support structure, and its material can be selected from materials with sufficient strength and rigidity, such as metals (e.g., carbon steel, aluminum alloys), to ensure resistance to deformation during long-term use and provide a stable and reliable boundary for the entire elastic support structure. In this embodiment, the frame 20 can be an integral, closed structure.

[0031] The breathable mesh layer 30 is disposed within the space enclosed by the frame 20 to form an elastic support surface capable of supporting the weight of a person. Specifically, in its natural state, the outer contour of the breathable mesh layer 30 is smaller than the inner contour of the frame 20, resulting in a certain gap between the breathable mesh layer 30 and the inner wall of the frame 20, creating an overall layout with an inner and outer separation. This layout provides the necessary space for subsequent suspension and tensioning via the elastic connector 40. The breathable mesh layer 30 itself has excellent breathability, effectively preventing the accumulation of moisture and heat, and improving user comfort.

[0032] The plurality of elastic connectors 40 are components that achieve an elastic connection between the breathable mesh layer 30 and the frame 20. These elastic connectors 40 are spaced apart along the periphery (i.e., edge region) of the breathable mesh layer 30, ensuring that the tensile force acting on the breathable mesh layer 30 is evenly distributed across its entire periphery. One end of each elastic connector 40 is connected to the periphery region of the breathable mesh layer 30, and the other end is connected to the inner side of the frame 20. Specifically, the plurality of elastic connectors 40 are distributed in a radiating or radial pattern along the periphery of the breathable mesh layer 30. Each elastic connector 40 independently connects a point on the edge of the mesh to a corresponding point on the frame 20. This "edge-suspended" layout ensures that the individual elastic connectors 40 are spatially separated and do not contact each other, with a noticeable physical gap between them.

[0033] Through the aforementioned structural design, multiple elastic connectors 40 work together to suspend and tension the breathable mesh layer 30 as a whole onto the frame 20. After assembly, the elastic connectors 40 are in a certain pre-stretched state, applying a continuous and uniform radial tension to the breathable mesh layer 30, causing the breathable mesh layer 30 to form a flat, taut, and elastic support surface. This support surface directly constitutes the elastic base of the sofa cushion. On this basis, the seat assembly 60 can be further covered with filling materials such as sponge and an outer fabric to form a complete sofa cushion.

[0034] The working principle of this sofa embodiment is as follows: When a user sits on the sofa, their body weight first acts on the seat assembly 60. This pressure causes the breathable mesh layer 30, which serves as the elastic base, to undergo downward elastic deformation, thereby effectively buffering the impact force. During this process, multiple elastic connectors 40 connected to it are further stretched along their respective length directions, storing elastic potential energy. Since each elastic connector 40 is spatially independent and spaced apart, they will not collide or rub against each other even within the maximum deformation range. When the user leaves, the external pressure is removed, and the elastic connectors 40 quickly contract under their own rebound force, causing the breathable mesh layer 30 to return to its initial flat and taut state. This edge-suspended structure achieves excellent elasticity and support performance through the synergistic effect of the breathable mesh layer 30 and the elastic connectors 40. Compared with traditional wooden board structures, its comfort is significantly improved; compared with traditional spring structures, it is less prone to local collapse and friction noise.

[0035] In one embodiment, the breathable mesh layer is a PVC-coated polyester fiber woven mesh.

[0036] In this embodiment, the breathable mesh layer 30 is made of PVC-coated polyester fiber woven mesh. Specifically, the mesh uses polyester fiber as the base material, forms a uniform mesh structure through a weaving process, and applies a PVC coating to its surface to enhance the overall performance of the material. Polyester fiber, as the main weaving material, provides good tensile strength and flexibility, ensuring that the mesh is not easily broken or deformed when subjected to repeated stretching and pressure. The PVC coating further improves the mesh's aging resistance, abrasion resistance, and waterproof performance, while maintaining the breathability of the mesh structure, allowing air and moisture to circulate freely and preventing the accumulation of heat or moisture inside.

[0037] When pressure is applied by the user, the mesh layer can evenly distribute the stress, providing a gentle elastic feedback; after the pressure is released, it quickly returns to a flat state. This material choice makes the elastic support structure 10 suitable for long-term, high-frequency use scenarios, such as sofa cushion support, without the rapid aging or support failure problems common in traditional materials.

[0038] In one embodiment, the shape of the breathable mesh layer 30 is adapted to the inner contour of the frame 20.

[0039] In this embodiment, the overall shape of the breathable mesh layer 30 is adapted to the inner contour of the frame 20. "Adapted" means that the outer edge contour of the breathable mesh layer 30 and the inner edge contour of the frame 20 are consistent in shape or highly similar. For example, when the inner contour of the frame 20 is rectangular, the breathable mesh layer 30 is also designed as rectangular; when the inner contour of the frame 20 is circular, the breathable mesh layer 30 is also designed as circular.

[0040] This shape-adaptive design ensures that the distance from any point on the periphery of the breathable mesh layer 30 to the inner wall of the frame 20 is relatively uniform or varies regularly. This allows the multiple elastic connectors 40 distributed along the periphery to withstand similar tensile forces after installation, thereby applying tension evenly to the entire edge of the breathable mesh layer 30. This effectively avoids problems such as mesh wrinkles and uneven support caused by excessive or insufficient local stress. This design also enhances the versatility of the elastic support structure 10 for furniture with different shapes.

[0041] In one embodiment, the breathable mesh layer 30 is circular or polygonal in shape.

[0042] In a specific application scenario, the inner contour of the frame 20 can be designed as circular, for example, in a circular sofa stool or sofa. Correspondingly, the breathable mesh layer 30 is also circular in shape, with a diameter smaller than the inner diameter of the frame 20. Multiple elastic connectors 40 are radially and evenly distributed along the periphery of the circular mesh, suspending the mesh in the central area of ​​the circular frame 20.

[0043] In another specific application scenario, the inner contour of the frame 20 can be designed as a polygon, most commonly a rectangle, used in the cushions of most standard sofas. In this case, the breathable mesh layer 30 is also correspondingly made as a rectangle. Alternatively, the polygon can be hexagonal, trapezoidal, or other irregular polygons to accommodate the unique designs of various customized or irregularly shaped sofas. As long as the shape of the breathable mesh layer 30 remains consistent with the inner contour of the frame 20, a stable and uniform suspension support effect can be achieved through the elastic connector 40, meeting the design requirements of different products.

[0044] In one embodiment, the elastic connector 40 is a tension spring.

[0045] In this embodiment, the plurality of elastic connectors 40 are specifically in the form of tension springs. The tension spring is a typical helical elastic element. This type of spring has a certain initial length when unloaded, and when subjected to axial tension, it can undergo controllable elongation deformation along its length direction and store elastic potential energy; after the tension is released, it quickly retracts to its initial state.

[0046] In the elastic support structure 10, one end of each tension spring is connected to the periphery of the breathable mesh layer 30, and the other end is connected to the frame 20. Through a preset installation tension, these tension springs evenly suspend the breathable mesh layer 30 above the frame 20. When the breathable mesh layer 30 is subjected to external pressure (such as when a person sits down) and deforms downwards, the tension springs further extend, providing a gentle cushioning effect; after the pressure is removed, the rebound force of the tension springs causes the breathable mesh layer 30 to quickly return to its original position. This design ensures a uniform and stable elastic response throughout the structure, avoiding the localized collapse or noise problems common in traditional support structures, while also improving durability.

[0047] In one embodiment, a plurality of spaced connecting portions are fixedly provided on the breathable mesh layer 30 along its periphery, and one end of the elastic connector 40 is detachably connected to the corresponding connecting portion, and the other end is detachably connected to the frame 20.

[0048] In this embodiment, a plurality of spaced-apart connecting portions are fixedly provided on the breathable mesh layer 30 along its periphery. These connecting portions are evenly distributed in the edge area of ​​the breathable mesh layer 30 and are firmly bonded to the mesh body, for example by sewing or other fixing methods, to ensure that they will not loosen or shift during long-term use. Each connecting portion is designed to form a stable connection with external components to withstand the tensile force from the elastic connector 40.

[0049] One end of the elastic connector 40 is detachably connected to the corresponding connecting part, for example, through hooks, snaps, or other quick-connect mechanisms. This detachable design allows the user to separate the elastic connector 40 from the breathable mesh layer 30 when needed, facilitating cleaning, maintenance, or component replacement. The other end of the elastic connector 40 is detachably connected to the frame 20, also employing an easy-to-operate connection method, making the assembly and disassembly process of the entire elastic support structure 10 simple and efficient.

[0050] With the above-described connection configuration, once the multiple elastic connectors 40 are installed, they evenly suspend and tension the breathable mesh layer 30 onto the frame 20 through the connecting parts. This design not only maintains the overall elasticity and stability of the structure but also improves practicality. For example, during sofa manufacturing or maintenance, components can be quickly adjusted or replaced without affecting the support performance.

[0051] In one embodiment, the connecting part is a ring 32.

[0052] In this embodiment, the buckle 32 includes a fixing part fixedly connected to the breathable mesh layer 30 and an annular part fixedly connected to the elastic connector 40. The fixing part of each buckle 32 is installed on the periphery of the breathable mesh layer 30 by sewing or other fixing methods. For example, the edge of the mesh can be thickened or bound, and then the fixing part of the buckle 32 is sewn into the thickened area to distribute tension and prevent the mesh from tearing. The annular part of the buckle 32 has a through hole 33, and one end of the elastic connector 40 (such as a tension spring) is designed with a corresponding hook 41, which can easily pass through and hook into the through hole 33 of the annular part. This design ensures the stability of the connection and quick assembly / disassembly.

[0053] In one embodiment, a plurality of spaced-apart hooks are fixedly provided on the frame 20 along its periphery, and the other end of the elastic connector 40 is detachably connected to the corresponding hook.

[0054] In this embodiment, these hooks and multiple connecting parts on the breathable mesh layer 30 are roughly corresponding in position to ensure that the elastic connector 40 can form a reasonable stretching direction after installation.

[0055] The hooking part is a structure on the frame 20 specifically designed for hooking the elastic connector 40. It can be a structure integrally formed with the frame 20, such as a lug or hole punched on the bottom surface of the frame 20, or it can be a component manufactured separately and fixed to the bottom surface of the frame 20, such as a hook or pin welded or screwed onto the frame 20.

[0056] Specifically, the other end of the elastic connector 40 (i.e., the end furthest from the breathable mesh layer 30) is detachably connected to the corresponding hooking part. For example, if the elastic connector 40 is a tension spring with hooks at both ends, the hook-shaped part 41 at one end is hooked onto the ring 32 of the breathable mesh layer 30, and the hook-shaped part 41 at the other end is directly hooked onto the hooking part on the frame 20. In this way, the entire breathable mesh layer 30 suspension system can be quickly and securely installed onto the frame 20, while also providing convenience for subsequent adjustment or disassembly.

[0057] In one embodiment, the hooking part is a limiting hole 22 passing through the bottom surface of the frame 20, and the elastic connector 40 has hook-shaped parts 41 at both ends, wherein the hook-shaped part 41 at one end is hooked into the through hole 33 of the ring buckle 32, and the hook-shaped part 41 at the other end is hooked into the limiting hole 22.

[0058] In this embodiment, the hook-on portion provided on the frame 20 is specifically a limiting hole 22 passing through the bottom surface of the frame 20. These limiting holes 22 can be formed by drilling or stamping on the bottom surface of the frame 20.

[0059] Accordingly, the elastic connector 40 has hook-shaped portions 41 integrally formed at both opposite ends. These two hook-shaped portions 41 are oriented in opposite directions or set at a specific angle according to installation requirements, so as to facilitate hooking.

[0060] During assembly, the specific connection method is as follows: the hook-shaped part 41 at one end of the elastic connector 40 is passed through and hooked into the through hole 33 of the ring 32 fixed on the periphery of the breathable mesh layer 30; then, the hook-shaped part 41 at the other end of the elastic connector 40 is directly hooked into the corresponding limiting hole 22 on the frame 20. This "hook-ring" and "hook-hole" connection method has a simple structure, reliable connection, simplifies the installation and disassembly process, and can be completed by hand without any professional tools.

[0061] In one embodiment, the plurality of hooks are formed on the frame 20 with at least two rings, inner and outer.

[0062] In this embodiment, the plurality of hooks are not arranged in a single ring on the frame 20, but rather in at least two parallel rings, inner and outer. For example, two parallel positioning holes 22 are machined on the bottom surface of the frame 20 along its width direction, one ring being relatively close to the breathable mesh layer 30 (referred to as the inner ring), and the other ring being relatively far away from the breathable mesh layer 30 (referred to as the outer ring).

[0063] One end of each elastic connector 40 is attached to the inner ring's attachment point. Because the inner ring's attachment point is close to the edge of the breathable mesh layer 30, the initial tension of the elastic connector 40 is small, and the preload applied to the mesh is also correspondingly small, making the entire support surface more flexible and providing a softer and more comfortable seating experience.

[0064] One end of each elastic connector 40 is attached to the hook-up part of the outer ring. Since the hook-up point of the outer ring is far from the edge of the breathable mesh layer 30, the initial tension of the elastic connector 40 is large, and the preload applied to the mesh is also greater, which makes the entire support surface tighter and provides a more supportive sitting experience.

[0065] By selectively attaching the elastic connector 40 to the attachment points of different rings, users or manufacturers can easily adjust the stiffness of the elastic support structure 10 according to specific needs, so as to meet the personalized preferences of different users and enhance the applicability and market competitiveness of the product.

[0066] like Figure 5As shown, this utility model embodiment also provides a sofa with an elastic support structure, designed to improve the comfort and support of the sofa backrest. The sofa includes a seat assembly 60, an armrest assembly 70 disposed on the side of the seat assembly 60, and a backrest assembly 80 disposed at the rear of the seat assembly 60. The backrest assembly 80 includes an elastic support structure 10, which includes a frame 20, a breathable mesh layer 30, and a plurality of elastic connectors 40. The breathable mesh layer 30 and the frame 20 are spaced apart. The plurality of elastic connectors 40 are spaced apart along the periphery of the breathable mesh layer 30 and are respectively connected to the breathable mesh layer 30 and the frame 20 to suspend and tension the breathable mesh layer 30 on the frame 20.

[0067] In this embodiment, the elastic support structure 10 serves as the internal support skeleton of the backrest assembly 80. Its frame 20 is integrated or fixedly connected to the overall frame of the sofa backrest, for example, by screws, welding, or other fixing methods. The breathable mesh layer 30 is suspended and tensioned on the frame 20 by multiple elastic connectors 40, forming the elastic support surface of the backrest assembly 80. Based on this, the backrest assembly 80 can be further covered with filling material (such as sponge) and an outer fabric to form a complete cushion.

[0068] Through this integration, when a user leans against the sofa, the elastic support structure 10 in the backrest assembly 80 provides soft elastic support and resilience while maintaining good breathability, avoiding stuffiness during prolonged use. This design solves the common problems of uneven support, deformation, and poor breathability of traditional sofa backrests (such as those supported by foam or wood panels), improving the overall comfort and durability of the sofa.

[0069] In one embodiment, a plurality of spaced-apart connecting portions are fixedly provided on the breathable mesh layer 30 along its periphery; a plurality of spaced-apart hanging portions are fixedly provided on the frame 20 along its periphery; one end of the elastic connector 40 is detachably connected to the corresponding connecting portion, and the other end is detachably connected to the corresponding hanging portion.

[0070] In this embodiment, these connecting parts and hook-ups are designed for easy assembly and adjustment. Specifically, the connecting part is a ring buckle 32, each ring buckle 32 including a fixing part fixedly connected to the breathable mesh layer 30 and an annular part with a through hole 33. The fixing part of the ring buckle 32 is installed on the periphery of the breathable mesh layer 30 by sewing or other fixing methods. For example, the edge of the mesh can be thickened or edge-bound, and then the fixing part of the ring buckle 32 is sewn into the thickened area to distribute the tension and prevent the mesh from tearing. The hook-up part is a limiting hole 22 passing through the bottom surface of the frame 20. These limiting holes 22 are formed by drilling or stamping and are distributed at intervals along the periphery of the frame 20. The elastic connector 40 is a tension spring, with hook-shaped parts 41 integrally formed at both opposite ends. The hook-shaped part 41 at one end passes through and hooks into the through hole 33 of the ring buckle 32, and the hook-shaped part 41 at the other end hooks directly into the limiting hole 22. This "hook-ring" and "hook-hole" connection method has a simple structure and reliable connection, which simplifies the installation and disassembly process. It can be completed by hand without professional tools, making it convenient for users to maintain or replace parts.

[0071] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A sofa with an elastic support structure, characterized in that, The device includes a seat assembly, an armrest assembly disposed on the side of the seat assembly, and a backrest assembly disposed at the rear of the seat assembly. The seat assembly includes an elastic support structure, which includes a frame, a breathable mesh layer, and multiple elastic connectors. The breathable mesh layer and the frame are spaced apart. The multiple elastic connectors are distributed at intervals along the periphery of the breathable mesh layer and are respectively connected to the breathable mesh layer and the frame to suspend and tension the breathable mesh layer on the frame.

2. The sofa according to claim 1, characterized in that, The breathable mesh layer is a PVC-coated polyester fiber woven mesh.

3. The sofa according to claim 1, characterized in that, The shape of the breathable mesh layer is adapted to the inner contour of the frame.

4. The sofa according to claim 3, characterized in that, The breathable mesh layer is circular or polygonal in shape.

5. The sofa according to claim 1, characterized in that, The elastic connector is a tension spring.

6. The sofa according to claim 1, characterized in that, Multiple spaced connecting parts are fixedly provided along the periphery of the breathable mesh layer. One end of the elastic connector is detachably connected to the corresponding connecting part, and the other end is detachably connected to the frame.

7. The sofa according to claim 6, characterized in that, The connecting part is a ring.

8. The sofa according to claim 7, characterized in that, The frame is fixedly provided with multiple spaced hanging parts along its perimeter, and the other end of the elastic connector is detachably connected to the corresponding hanging part.

9. The sofa according to claim 8, characterized in that, The hooking part is a limiting hole that passes through the bottom surface of the frame. The elastic connector has hook-shaped parts at both ends. One end of the hook-shaped part is hooked into the through hole of the ring buckle, and the other end of the hook-shaped part is hooked into the limiting hole.

10. The sofa according to claim 8, characterized in that, The plurality of mounting parts form at least two inner and outer rings on the frame.

11. A sofa with an elastic support structure, characterized in that, The device includes a seat assembly, an armrest assembly disposed on the side of the seat assembly, and a backrest assembly disposed at the rear of the seat assembly. The backrest assembly includes an elastic support structure, which includes a frame, a breathable mesh layer, and multiple elastic connectors. The breathable mesh layer and the frame are spaced apart. The multiple elastic connectors are distributed at intervals along the periphery of the breathable mesh layer and are respectively connected to the breathable mesh layer and the frame to suspend and tension the breathable mesh layer on the frame.

12. The sofa according to claim 11, characterized in that, Multiple spaced connecting parts are fixedly provided along the periphery of the breathable mesh layer; multiple spaced hanging parts are fixedly provided along the periphery of the frame; one end of the elastic connector is detachably connected to the corresponding connecting part, and the other end is detachably connected to the corresponding hanging part.

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