A sofa base structure

Abstract

This utility model discloses a sofa base structure, relating to the field of furniture manufacturing technology. The utility model includes a base body, a support frame, several support components, and several snap-fit ​​components. The support frame is fixedly connected to the base body and includes two horizontal beams and two vertical beams. Each support component includes an inclined plate, which is trapezoidal, with side plates fixedly connected to both ends. Each snap-fit ​​component includes an elastic telescopic rod, the fixed end of which is fixedly connected to the side plate, and the telescopic end of which is movably inserted into the side plate. Both the horizontal and vertical beams have slots corresponding to the telescopic ends of the elastic telescopic rods. This utility model, through its support components and snap-fit ​​components, solves the problems of poor installation convenience, low strength, easy deformation, and reduced service life of existing wooden support structures for sofa bases.

Description

Technical Field

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

[0002] Sofas are common furniture in modern homes and offices. The sofa base structure mainly involves the supporting frame of the sofa and the part that contacts the ground. Its design and construction are crucial to the stability and durability of the sofa. Sofa bases are usually made of materials such as wood, steel, engineered wood, or medium-density fiberboard. These materials not only meet the design requirements, but must also have sufficient strength to support the weight of the user.

[0003] Patent publication number CN223025709U discloses a novel sofa base structure, including multiple support frames and multiple support mechanisms. Each support frame has a rectangular groove at its lower corner, with blind holes on the inner wall of the bottom of the rectangular groove. Each support mechanism includes a rod, with a plug at the upper end of the rod that mates with the rectangular groove. A through hole is provided between the plug and the rod, and a connecting rod is rotatably mounted within the through hole. A second plug at the upper end of the connecting rod mates with the blind hole, and a disc is connected to the lower end of the connecting rod. The support frames have opposing slots on the top, with limiting blocks inserted into two mating slots. The advantages of this invention compared to existing technologies are its adjustable structure and wide applicability.

[0004] However, existing sofa bases are usually made of wooden blocks, which makes them difficult to install. Sofa bases are typically composed of multiple wooden strips, connectors, and auxiliary fixing parts. During assembly, each wooden component needs to be precisely positioned and aligned, and assembly is achieved by mortise and tenon joints or bolt tightening, which requires a high level of skill from the installers. The support frame made of wooden blocks mainly provides a support surface, and its shear and torsional resistance is poor. Furthermore, after long-term use, the central area is prone to sinking due to stress, which can cause the cushion to deform and affect the lifespan of the sofa. Summary of the Invention

[0005] The purpose of this utility model is to provide a sofa base structure that solves the problems of poor installation convenience, low strength, easy deformation, and reduced service life of existing wooden support structures for sofa bases through support components and snap-fit ​​components.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a sofa base structure, including a base body, a support frame, several support components, and several snap-fit ​​components. The support frame is fixedly connected to the base body and includes two horizontal beams and two vertical beams. Each support component includes an inclined plate, which is trapezoidal in shape, and side plates are fixedly connected to both ends of the inclined plate. Each snap-fit ​​component includes an elastic telescopic rod, the fixed end of which is fixedly connected to the side plate, and the telescopic end of which is movably inserted into the side plate. Both the horizontal beams and the vertical beams have slots, which correspond to the telescopic ends of the elastic telescopic rods.

[0008] As a preferred embodiment of this utility model, a pull rod is fixedly connected to the inner wall of the telescopic end of the elastic telescopic rod, and the end of the pull rod away from the telescopic end of the elastic telescopic rod passes through the elastic telescopic rod and is fixedly connected to a handle.

[0009] As a preferred technical solution of this utility model, the side surface of the telescopic end of the elastic telescopic rod and the end face of the telescopic end of the elastic telescopic rod form a guide surface.

[0010] As a preferred embodiment of this utility model, the side plate is threaded with bolts, and several bolts are threadedly connected to the crossbeam and the longitudinal beam respectively.

[0011] As a preferred embodiment of this utility model, the plurality of support components are arranged in a rectangular array on the inner wall of the support frame.

[0012] As a preferred technical solution of this utility model, the base body includes a longitudinal connecting plate and a plurality of transverse connecting plates. The two ends of the longitudinal connecting plate are respectively fixedly connected to two crossbeams, and the plurality of transverse connecting plates are fixedly connected to two longitudinal beams.

[0013] This utility model has the following beneficial effects:

[0014] (I) This utility model adopts an integrated rigid support component composed of trapezoidal inclined plate and side plate, and combined with the support frame to form a multi-point, uniformly stressed support structure; this structure can disperse the pressure on the sofa and avoid local stress concentration, thereby improving the overall structural strength and deformation resistance of the base.

[0015] (ii) This utility model achieves quick installation and disassembly of the support components through the snap-fit ​​between the elastic telescopic rod and the socket, without the need for complicated tools and fasteners, which improves assembly efficiency and reduces subsequent maintenance costs; the design of the pull rod and handle makes the operation more precise and labor-saving.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of a sofa base structure according to the present invention;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the support component of this utility model;

[0021] Figure 4 This is a schematic diagram of the snap-fit ​​assembly of this utility model;

[0022] Figure 5 For the present utility model Figure 2 Enlarged view of section A.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base body; 2. Support frame; 3. Support assembly; 4. Snap-fit ​​assembly; 11. Longitudinal connecting plate; 12. Transverse connecting plate; 21. Crossbeam; 22. Longitudinal beam; 31. Inclined plate; 32. Side plate; 33. Bolt; 41. Elastic telescopic rod; 42. Socket; 43. Pull rod; 44. Handle; 45. Guide surface. Detailed Implementation

[0025] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Example 1:

[0028] Please see Figures 1-5 As shown, this utility model is a sofa base structure, including a base body 1, a support frame 2, several support components 3, and several snap-fit ​​components 4. The support frame 2 is fixedly connected to the base body 1, and the support frame 2 includes two horizontal beams 21 and two vertical beams 22. The support component 3 includes an inclined plate 31, which is trapezoidal, and side plates 32 are fixedly connected to both ends of the inclined plate 31. The snap-fit ​​components 4 include an elastic telescopic rod 41, the fixed end of which is fixedly connected to the side plate 32, and the telescopic end of the elastic telescopic rod 41 is connected to the side plate 32. The crossbeams 21 and 22 are connected in an interlocking manner, with slots 42 provided on both. These slots 42 correspond to the telescopic ends of the elastic telescopic rods 41. During assembly, the support frame 2 is first securely connected to the base body 1 using bolts 33. The support frame 2, formed by two crossbeams 21 and two longitudinal beams 22, provides the basic installation framework for the overall structure. Subsequently, the various support components 3 are assembled. The inclined plate 31 of each support component 3 is designed as a trapezoidal structure, with its two ends pre-fixed to the side plates 32. During assembly, the support is achieved through snap-fit ​​components 4. The quick positioning and installation of the support component 3 and the support frame 2 are achieved by rigidly fixing the fixed end of the elastic telescopic rod 41 of the snap-fit ​​component 4 to the side plate 32, while allowing its telescopic end to move axially along the side plate 32. When the support component 3 is placed in the preset installation position of the support frame 2, the telescopic end of the elastic telescopic rod 41 automatically pops out under elastic force and inserts into the corresponding slots 42 on the crossbeam 21 and the longitudinal beam 22, completing the snap-fit ​​fixing of the support component 3 and the support frame 2. Through the even distribution of several support components 3 within the support frame 2, a multi-point, high-strength structure is formed. The support system provides strength; its function is twofold: firstly, the quick assembly and disassembly of the support component 3 can be achieved without complex fasteners through the snap-fit ​​connection between the elastic telescopic rod 41 and the socket 42, improving installation convenience and reducing assembly and maintenance costs; secondly, the support component 3, composed of the trapezoidal inclined plate 31 and the side plate 32, is an integrated rigid structure, which improves structural strength compared to traditional wooden supports, and the multi-directional force system formed by the support frame 2 and the support component 3 can distribute the pressure on the sofa and avoid deformation caused by local stress concentration.

[0029] Please see Figures 4-5As shown, a pull rod 43 is fixedly connected to the inner wall of the telescopic end of the elastic telescopic rod 41. The end of the pull rod 43 away from the telescopic end of the elastic telescopic rod 41 passes through the elastic telescopic rod 41 and is fixedly connected to a handle 44. During assembly, the handle 44 is pulled towards the side plate 32, and the pull rod 43 causes the telescopic end to compress the internal elastic element and retract to the inside of the side plate 32. At this time, the support assembly 3 can be quickly positioned to the preset position of the support frame 2, so that the telescopic end is precisely aligned with the insertion port 42 of the crossbeam 21 or the longitudinal beam 22. After releasing the handle 44, the elastic element resets and pushes the telescopic end out. Insert the plug into the socket 42 to complete the snap-fit ​​fixation between the support component 3 and the support frame 2; when disassembling or adjusting, pull the handle 44 again to disengage the telescopic end from the socket 42, and the support component 3 can be easily removed; the core function of this structure is to realize the active control of the telescopic end of the elastic telescopic rod 41 through the linkage design of the pull rod 43 and the handle 44, which not only ensures the reliability of the snap-fit ​​fixation, but also solves the problem of the difficulty in accurately controlling the telescopic end when disassembling and assembling a purely elastic structure, further improving the convenience of disassembling and assembling the support component 3, while not affecting the overall stress stability of the support structure.

[0030] Please see Figures 4-5 As shown, the side of the telescopic end of the elastic telescopic rod 41 and the end face of the telescopic end of the elastic telescopic rod 41 form a guide surface 45. During assembly, when the telescopic end of the elastic telescopic rod 41 moves to the edge of the socket 42, the telescopic end of the elastic telescopic rod 41 will cause the guide surface 45 to contact the edge of the socket 42 under the action of elastic force, causing part of the telescopic end of the elastic telescopic rod 41 to move into the socket. This will cause the handle 44 to shift. Pushing the shifted handle 44 towards the socket will cause the edge of the socket 42 to exert oblique pressure on the guide surface 45 under the continuous installation pressure, forcing part of the telescopic end to slide into the socket 42. At this time, the telescopic end moves smoothly and is completely inserted into the socket 42 under the combined action of the push of the handle 44 and the guidance of the guide surface 45, thereby realizing the blind installation of the support component 3. This design retains the convenience of quick snap-fit ​​while eliminating the step of pre-pulling the handle 44 for alignment, further simplifying the installation process.

[0031] Please see Figures 2-5As shown, the side plate 32 is threaded with bolts 33, and several bolts 33 are threaded to the crossbeam 21 and the longitudinal beam 22 respectively. After the initial snap-fit ​​positioning of the support component 3 and the support frame 2 is completed, the bolts 33 are screwed into the side plate 32 to make them threaded to the corresponding crossbeam 21 or longitudinal beam 22 respectively. The core function of this operation step is to provide a redundant mechanical locking: the elastic telescopic rod 41 ensures the convenience of installation and initial stability, while the subsequently screwed-in bolts 33 form a solid rigid connection point, which can effectively resist the potential loosening caused by vibration, lateral force or long-term load during use. Thus, the quick snap-fit ​​structure is combined with reliable mechanical fastening, which improves the long-term load-bearing safety and durability of the entire sofa base structure while ensuring the convenience of disassembly and assembly.

[0032] Please see Figures 1-3 As shown, a rectangular array of several support components 3 are distributed on the inner wall of the support frame 2. During installation, the operator needs to install and fix the several support components 3 in a rectangular array to the inner wall of the support frame 2 in sequence. The purpose is to improve the support of the base. Through the regularly arranged support points, the load applied to the sofa seat can be evenly distributed to the entire support frame 2 and the base body 1, thereby reducing stress concentration and making the base structure less prone to twisting or deformation. At the same time, this orderly arrangement also simplifies the positioning work during the installation process, ensuring the stability of the overall structure and the optimization of load-bearing performance.

[0033] Example 2:

[0034] Please see Figure 1 As shown, the base body 1 includes a longitudinal connecting plate 11 and several transverse connecting plates 12. The two ends of the longitudinal connecting plate 11 are fixedly connected to two crossbeams 21, and the several transverse connecting plates 12 are fixedly connected to two longitudinal beams 22. After the support frame 2 is assembled, the two ends of the longitudinal connecting plate 11 in the base body 1 are fixedly connected to the two crossbeams 21, and the several transverse connecting plates 12 are fixedly connected to the two longitudinal beams 22. The purpose is to improve the stability of the frame: the longitudinal connecting plate 11, as the core load-bearing beam, is responsible for bearing the main load and ensuring the overall longitudinal rigidity; while the evenly distributed transverse connecting plates 12 effectively connect the two longitudinal beams 22, enhancing the transverse stability of the base, thereby distributing the load transmitted from the support component 3 more evenly, and improving the overall structural strength, torsional stiffness and long-term reliability of the sofa base.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sofa base structure, comprising a base body (1), characterized in that, Also includes: The support frame (2) is fixedly connected to the base body (1), and the support frame (2) includes two cross beams (21) and two longitudinal beams (22); A plurality of support components (3), the support components (3) including an inclined plate (31), the inclined plate (31) being trapezoidal, and side plates (32) being fixedly connected to both ends of the inclined plate (31); Several snap-fit ​​components (4) are provided, each including an elastic telescopic rod (41). The fixed end of the elastic telescopic rod (41) is fixedly connected to the side plate (32), and the telescopic end of the elastic telescopic rod (41) is movably inserted into the side plate (32). Both the crossbeam (21) and the longitudinal beam (22) are provided with slots (42), and the slots (42) correspond to the telescopic ends of the elastic telescopic rod (41).

2. The sofa base structure according to claim 1, characterized in that, A pull rod (43) is fixedly connected to the inner wall of the telescopic end of the elastic telescopic rod (41). The end of the pull rod (43) away from the telescopic end of the elastic telescopic rod (41) passes through the elastic telescopic rod (41) and is fixedly connected to a handle (44).

3. The sofa base structure according to claim 2, characterized in that, The side of the telescopic end of the elastic telescopic rod (41) and the end face of the telescopic end of the elastic telescopic rod (41) form a guide surface (45).

4. The sofa base structure of claim 1, wherein, The side plate (32) is threaded with bolts (33), and several of the bolts (33) are threaded to the crossbeam (21) and the longitudinal beam (22) respectively.

5. A sofa base structure according to claim 4, characterized in that, The rectangular array of the support components (3) is distributed on the inner wall of the support frame (2).

6. A sofa base structure according to claim 1, characterized in that, The base body (1) includes a longitudinal connecting plate (11) and several transverse connecting plates (12). The two ends of the longitudinal connecting plate (11) are fixedly connected to two crossbeams (21) respectively, and the several transverse connecting plates (12) are fixedly connected to two longitudinal beams (22).

Images