Modular sofa base frame and soft sofa
By using modular design, the sofa base frame is broken down into a reusable base and interchangeable styling parts, which solves the problem of the traditional sofa base frame not being universal, realizes the universality of parts and the flexibility of styling, and reduces production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN AIMU BEDROOM SUPPLIES
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional sofa frames are made of a single piece, which makes it impossible to standardize the parts for irregularly shaped sofas, reducing production efficiency and increasing production costs.
The sofa adopts a modular design, which breaks down the sofa base into a reusable base and interchangeable decorative components, including interchangeable seating, armrests and backrest components, thus separating the design from the structural load-bearing capacity.
It improves the versatility of parts, reduces production costs, meets diverse styling needs, and enhances production efficiency and styling flexibility.
Smart Images
Figure CN224483478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of living furniture technology, and in particular to a modular sofa base frame and upholstered sofa. Background Technology
[0002] Sofas, as common furniture products, typically consist of a base frame and an upholstery (such as foam, fabric, or leather) covering the surface of the base frame. The base frame, as the supporting structure of the sofa, determines its overall shape and mechanical properties. Traditional sofas usually use a one-piece base frame structure, meaning the frame is processed into a fixed shape using wood, metal, or composite materials according to the sofa's shape requirements.
[0003] This design approach is convenient when manufacturing sofas with conventional rectangular or simple shapes, but when dealing with sofas with irregular structures (such as curved, polygonal, or irregularly shaped curves), the base frame often needs to be completely redesigned, with no parts that can be reused. In other words, the components of irregularly shaped sofas cannot be standardized, which not only reduces production efficiency but also greatly increases production costs.
[0004] Therefore, there is an urgent need to improve existing sofas to increase the versatility of parts and reduce production costs in order to meet diverse styling requirements.
[0005] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0006] One objective of this utility model is to provide a modular sofa base frame and upholstered sofa, which can effectively improve the versatility of parts and reduce production costs to meet diverse styling needs.
[0007] To achieve the above objectives, on the one hand, this utility model provides a modular sofa base frame, comprising:
[0008] Reusable base;
[0009] A ride-on interchangeable styling component, which is assembled to the front end of the reusable base, includes a ride panel located above the reusable base and used to provide ride support, and a front styling panel extending downward from the front end of the ride panel to the front of the reusable base.
[0010] The replaceable armrest is assembled on the side of the reusable base and includes a side panel for covering the side of the reusable base and a side armrest bracket for connecting the side panel to the reusable base.
[0011] A replaceable backrest is assembled on top of the rear end of the reusable base.
[0012] Optionally, the number of replaceable armrest components is two.
[0013] Optionally, the horizontal distance between the front-end design panel and the reusable base gradually decreases from top to bottom.
[0014] Optionally, the top corners of the reusable base are all rounded.
[0015] Optionally, the reusable base includes an annular base plate, a base top plate located directly above the annular base plate, and a plurality of vertical support plates connecting the annular base plate and the base top plate.
[0016] Optionally, the side panel is an outwardly arched arc-shaped plate.
[0017] Optionally, the side armrest bracket is connected to the upper part of the inner wall of the arc-shaped plate, and the lower part of the arc-shaped plate extends downward to the outside of the reusable base to cover the side of the reusable base.
[0018] Optionally, the number of the interchangeable seating components is two.
[0019] Optionally, the interchangeable backrest includes a backrest bottom frame assembled on the reusable base, and a plurality of backrest top frames located above the backrest bottom frame.
[0020] On the other hand, a padded sofa is provided, including any of the modular sofa base frames and a padded layer covering the surface of the modular sofa base frame.
[0021] The beneficial effects of this utility model are as follows: It provides a modular sofa base frame and upholstered sofa. Through modular design, it fundamentally reconstructs the production logic of the sofa base frame, decomposing the traditional one-piece structure into a reusable basic base (i.e., a reusable base) and freely combinable styling modules (i.e., interchangeable seat styling components, left armrest assembly, right armrest assembly, and interchangeable backrest styling components, etc.). Its innovation lies in retaining the reusable base, which bears the core support function, as a universal platform, while decoupling the key parts that determine the appearance—including the front outline (front styling panel), side styling (left and right styling panels), and backrest shape—into independently replaceable standard modules. This design achieves the separation of styling changes from structural load-bearing, transforming sofa manufacturing from "new molds for each model" to a flexible production mode of "platform + module."
[0022] Therefore, the modular sofa base frame and upholstered sofa provided by this utility model can effectively improve the versatility of parts and reduce production costs to meet diverse styling needs. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 A schematic diagram of the structure of the upholstered sofa provided in the embodiment;
[0025] Figure 2 A schematic diagram of the modular sofa base frame provided in the embodiment;
[0026] Figure 3 An exploded view of the modular sofa base frame provided in the embodiment.
[0027] In the picture:
[0028] 100. Soft cladding layer;
[0029] 1. Reusable base; 101. Circular base plate; 102. Base top plate; 103. Vertical support plate; 104. Rounded corner structure;
[0030] 2. Ride-mount interchangeable styling components; 201. Ride-mount panel; 202. Front styling panel;
[0031] 3a. Left armrest assembly; 3b. Right armrest assembly; 301. Side panel; 302. Side armrest support;
[0032] 4. Replaceable backrest components; 401. Backrest bottom frame; 402. Backrest top frame. Detailed Implementation
[0033] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0034] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.
[0035] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.
[0036] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.
[0037] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0038] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0039] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0040] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0041] This utility model provides a modular sofa base frame and upholstered sofa. Through a reasonable modular design, it can effectively improve the versatility of parts and reduce production costs to meet diverse styling needs.
[0042] See Figure 1 The upholstered sofa provided by this utility model includes a modular sofa base frame and an upholstered layer 100 covering the surface of the modular sofa base frame.
[0043] See Figure 2 and Figure 3 The modular sofa base frame includes:
[0044] Reusable base 1;
[0045] The interchangeable seating element 2 is assembled at the front end of the reusable base 1 and includes a seating panel 201 located above the reusable base 1 and used to provide seating support, and a front-end styling panel 202 extending downward from the front end of the seating panel 201 to the front of the reusable base 1.
[0046] The replaceable armrest is assembled on the side of the reusable base 1 and includes a side panel 301 for covering the side of the reusable base 1 and a side armrest bracket 302 connecting the side panel 301 to the reusable base 1.
[0047] The replaceable backrest component 4 is assembled on top of the rear end of the reusable base 1.
[0048] It should be noted that the assembly and fixing methods between each replaceable shape part and the reusable base 1 include at least one of snap-fit, bolt connection and nail fixing.
[0049] In this embodiment, the number of replaceable handrail components is two, denoted as:
[0050] Left armrest assembly 3a, which is assembled on the left side of the reusable base 1, includes a left styling panel located on the left side of the left side of the reusable base 1, and a left armrest bracket connecting the left styling panel to the reusable base 1.
[0051] The right armrest assembly 3b is assembled on the right side of the reusable base 1 and includes a right-shaped panel located on the right side of the right side face of the reusable base 1 and a right armrest bracket connecting the right-shaped panel to the reusable base 1.
[0052] Typically, the left armrest assembly 3a and the right armrest assembly 3b are symmetrical. In some other embodiments, the two interchangeable armrest components on the left and right sides can also be designed as asymmetrical structures according to the design requirements.
[0053] The reusable base 1 provides the most basic support and positioning functions, and can be reused for modular sofa base frames of various shapes.
[0054] The front panel 202 of the interchangeable seat styling component 2 serves as the front panel of the modular sofa base frame, determining the front face shape of the modular sofa base frame; the side panel 301 of the interchangeable armrest styling component serves as the side panel of the modular sofa base frame, determining the shape of the left and right sides of the sofa base frame; the front face of the interchangeable backrest styling component 4 serves as the backrest of the modular sofa base frame, determining the shape of the backrest of the modular sofa base frame.
[0055] When it is necessary to redesign the modular sofa base frame with different shapes, at least the reusable base 1, which accounts for the main material and labor time of the base frame, can be reused. As for the replaceable seat shape part 2, the left armrest assembly 3a, the right armrest assembly 3b, and the replaceable backrest shape part 4, they can be partially or completely replaced according to the shape design needs.
[0056] This invention fundamentally reconstructs the production logic of sofa base frames through modular design, decomposing the traditional one-piece structure into a reusable base (i.e., reusable base 1) and freely combinable styling modules (i.e., interchangeable seat styling component 2, left armrest assembly 3a, right armrest assembly 3b, and interchangeable backrest styling component 4, etc.). Its innovation lies in retaining the reusable base 1, which bears the core support function, as a universal platform, while decoupling the key parts that determine the appearance—including the front outline (front styling panel 202), side styling (left and right styling panels), and backrest shape—into independently replaceable standard modules. This design achieves the separation of styling variations from structural load-bearing, transforming sofa manufacturing from "every new mold" to a flexible production model of "platform + module."
[0057] Therefore, the modular sofa base frame and upholstered sofa provided by this utility model can effectively improve the versatility of parts and reduce production costs to meet diverse styling needs.
[0058] In this embodiment, the horizontal distance between the front-end design panel 202 and the reusable base 1 gradually decreases from top to bottom. That is, the front-end design panel 202 has an inclined structure that gradually approaches the reusable base 1 from top to bottom. This inclined structure design frees up space below the front end of the seating panel 201, making it easier for users to tuck their feet in when sitting on the upholstered sofa, thereby improving seating comfort and ergonomic adaptability; at the same time, it reduces the obstruction of the front panel to the legs, optimizing the user's experience of getting in and out of the sofa.
[0059] When the overall size of the modular sofa base frame is large, the area of the seating surface is also large. A single interchangeable seating element 2 is too large, resulting in high transportation and storage costs. Therefore, the number of interchangeable seating elements 2 can be set to two.
[0060] Of course, in some other embodiments, the number of the interchangeable riding parts 2 may be one, three, four or even more, and this utility model does not limit this.
[0061] In this embodiment, the top corners of the reusable base 1 are all rounded corner structures 104. If the top corners of the reusable base 1 are outwardly protruding sharp corner structures, when the reusable base 1 is used with different interchangeable molded parts, it is easy to abut against the inner wall of the interchangeable molded parts and cause interference. The rounded corner structure 104 can effectively reduce the risk of interference with other interchangeable molded parts, thereby improving the versatility of the reusable base 1.
[0062] In this embodiment, the reusable base 1 includes an annular base plate 101, a base top plate 102 located directly above the annular base plate 101, and a plurality of vertical support plates 103 connecting the annular base plate 101 and the base top plate 102. This structure provides a stable and uniform support frame, enhancing the overall load-bearing capacity and structural strength of the base, ensuring that the sofa does not deform during long-term use; at the same time, the standardized design of the vertical support plates 103 facilitates the modular production and rapid assembly of the reusable base 1, reducing costs and improving manufacturing efficiency.
[0063] In this embodiment, the side panel 301 is an outwardly arched arc-shaped plate. Furthermore, the side armrest bracket 302 is connected to the upper part of the inner wall of the arc-shaped plate, and the lower part of the arc-shaped plate extends downward to the outer side of the reusable base 1 to cover the side of the reusable base 1.
[0064] The curved panel design enhances the visual appeal and streamlined shape of the sofa's sides, making the product more in line with modern aesthetic requirements; at the same time, the arched structure provides additional support space, improves the comfort and ergonomics of the armrest area, and enhances the user's experience when leaning against it.
[0065] In this embodiment, the interchangeable backrest component 4 includes a backrest bottom frame 401 assembled on the reusable base 1, and a plurality of backrest top frames 402 located above the backrest bottom frame 401. The layered design of the backrest bottom frame 401 and the backrest top frames 402 allows for modular adjustment of the backrest height and shape, making it easy to adapt to different sofa styles and user preferences.
[0066] In summary, the modular sofa base frame and upholstered sofa provided in this embodiment have the following advantages:
[0067] ① Modular design: By combining the reusable base 1 with interchangeable shaped parts, the versatility of parts is improved and production costs are reduced.
[0068] ② Multifunctional Reusable Base 1: As a universal support platform, it can be adapted to different shape modules, reducing the need for repeated mold making.
[0069] ③ Independently designed interchangeable styling components: The seating, armrests, and backrest components can be replaced individually to flexibly meet diverse styling needs.
[0070] ④ Inclined front panel 202: The inward tilting structure from top to bottom optimizes legroom, improving riding comfort and ease of entry and exit.
[0071] ⑤ Rounded corner base top corner: Avoids interference with replaceable shaped parts, and enhances the versatility and adaptability of the reusable base 1.
[0072] ⑥ Layered backrest structure: The backrest bottom frame 401 and top frame are combined in a design that supports modular adjustment of height and shape, making it easy to customize.
[0073] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A modular sofa base frame, characterized in that, The utility model relates to a modular sofa, comprising: a multipurpose base (1); a ride interchangeable shape piece (2) assembled at the front end of the multipurpose base (1), comprising a ride panel (201) above the multipurpose base (1) and used for providing ride support, and a front end shape panel (202) extending downward from the front end of the ride panel (201) to the front of the multipurpose base (1); an armrest interchangeable shape piece assembled at the side of the multipurpose base (1), comprising a side shape panel (301) used for covering the side of the multipurpose base (1), and a side armrest support (302) connecting the side shape panel (301) to the multipurpose base (1); a backrest interchangeable shape piece (4) assembled above the rear end of the multipurpose base (1).
2. The modular sofa base frame of claim 1, wherein, The number of the armrest interchangeable shape pieces is two.
3. The modular sofa base frame of claim 1, wherein, The horizontal distance dimension of the front end shape panel (202) to the multipurpose base (1) gradually decreases from top to bottom.
4. The modular sofa base frame of claim 1, wherein, The top corner positions of the multipurpose base (1) are all round corner structures (104).
5. The modular sofa base frame of claim 1, wherein, The multipurpose base (1) comprises a ring-shaped bottom plate (101), a base top plate (102) directly above the ring-shaped bottom plate (101), and a plurality of vertical support plates (103) connecting the ring-shaped bottom plate (101) and the base top plate (102).
6. The modular sofa base frame of claim 1, wherein, The side shape panel (301) is an outwardly convex arc-shaped plate.
7. The modular sofa base frame of claim 6, wherein, The side armrest support (302) is connected to the upper part of the inner wall of the arc-shaped plate, and the lower part of the arc-shaped plate extends downward to the outside of the multipurpose base (1) to cover the side of the multipurpose base (1).
8. The modular sofa base frame of claim 1, wherein, The number of the ride interchangeable shape pieces (2) is two.
9. The modular sofa base frame of claim 1, wherein, The backrest interchangeable shape piece (4) comprises a backrest bottom frame (401) assembled on the multipurpose base (1), and a plurality of backrest top frames (402) above the backrest bottom frame (401).
10. A sofa bed, characterized in that The modular sofa further comprises a soft bag layer (100) wrapped on the surface of the modular sofa bottom frame.