Quick-assembly connecting assembly and detachable sofa
By designing quick-connect components, the sofa can be quickly assembled using movable inserts and tilting springs on the fixed base, solving the installation difficulties of traditional bolt fastening methods and improving installation efficiency and connection stability.
Patent Information
- Application Number
- CN202520059845.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The current installation method for detachable sofas mainly relies on bolt fastening, which makes it difficult to operate in narrow spaces and results in low installation efficiency.
It adopts a quick-connect assembly, including a movable insert and a fixed base. The insertion and positioning are achieved by using the elastic contact of the tilting spring, eliminating cumbersome fastening steps and completing the assembly through a simple insertion operation.
It simplifies the sofa installation process, reduces installation difficulty, improves production efficiency, and enhances the stability and flexibility of the connection.
Smart Images

Figure CN223614469U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of living furniture technology, and in particular to a quick-connect component and a detachable sofa. Background Technology
[0002] With the rapid development of the home decoration industry, the types and styles of sofas are becoming increasingly diverse, and consumers have higher and higher requirements for the functionality, aesthetics, and convenience of sofas. However, in the design and manufacturing process of sofas, there are still certain limitations in the assembly methods of various components.
[0003] Currently, most detachable sofas on the market use bolts to fasten the backrests and armrests to the seating area. While bolt-fastening provides structural stability, it increases installation difficulty and reduces efficiency in confined installation environments with limited space.
[0004] Therefore, this utility model is dedicated to developing a quick-connect component, aiming to reduce the installation difficulty of detachable sofas and thus improve production efficiency.
[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 invention is to provide a quick-connect component and a detachable sofa, which can effectively reduce the installation difficulty of detachable sofas and thus improve production efficiency.
[0007] To achieve the above objectives, this utility model provides a quick-connect assembly, comprising:
[0008] Movable insert;
[0009] A fixed base, the fixed base including a base body and a limiting member located on the side of the base body facing away from the movable insertion rod;
[0010] The base body is provided with a plug hole for inserting the movable plug rod, and the limiting member is provided with two spaced inclined spring pieces corresponding to the position of the plug hole; the two inclined spring pieces are used to elastically abut against the movable plug rod to prevent the movable plug rod from being pulled out of the plug hole.
[0011] Optionally, the distance between the two inclined springs gradually decreases in the direction away from the base body.
[0012] Optionally, the insertion hole is an elongated hole, and the length of the insertion hole is greater than the length of the inclined spring piece, so that:
[0013] The movable insert has a clamped state at one end of the insert hole and elastically abutting against the two inclined spring pieces, and a loosened state at the other end of the insert hole and disengaged from the two inclined spring pieces.
[0014] Optionally, the base body is provided with two spaced-apart arc-shaped positioning plates, and the limiting member is located between the two arc-shaped positioning plates.
[0015] Optionally, the base body is provided with a plurality of positioning protrusions, and the limiting member is provided with a plurality of positioning holes corresponding one-to-one with each of the positioning protrusions.
[0016] Optionally, both the base body and the limiting member are provided with fastening holes.
[0017] Optionally, one end of the movable insert rod that is inserted into the fixed base has a conical tip, and the other end has a screw.
[0018] Optionally, the movable insert has a flange boss at the middle position to restrict the screw portion from passing through the insert hole.
[0019] On the other hand, a detachable sofa is provided, including a seating section and several auxiliary components, wherein at least one of the auxiliary components and the seating section are detachably connected by any of the quick-release connecting components described in any one of the claims.
[0020] Optionally, the auxiliary component is a backrest or an armrest.
[0021] The beneficial effects of this utility model are as follows: It provides a quick-connection component and a detachable sofa, which fixes the upper end of the movable plug rod to the auxiliary component and fixes the fixed base to the seating part. When the auxiliary component needs to be installed on the seating part, the movable plug rod is inserted into the plug rod hole. The inclined spring piece will elastically abut against the circumferential surface of the movable plug rod from both sides. The relative positioning between the movable plug rod and the fixed base is achieved by relying on the frictional resistance between the inclined spring piece and the movable plug rod, thereby completing the assembly operation between the auxiliary component and the seating part.
[0022] The design of the "movable insert" and "fixed base" allows for easy sofa assembly via simple insertion and is secured using the elastic resistance of the tilting tabs, eliminating the cumbersome tightening steps of traditional installation methods. Compared to traditional bolt fastening, it eliminates the need for complex bolt and nut alignment in confined spaces, greatly simplifying the installation process, reducing installation difficulty, and thus improving installation efficiency.
[0023] Therefore, the quick-connect component and detachable sofa provided by this utility model can effectively reduce the installation difficulty of detachable sofas, thereby improving production efficiency. Attached Figure Description
[0024] 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.
[0025] Figure 1 A structural schematic diagram of the detachable sofa provided in the embodiment;
[0026] Figure 2 An exploded view of the quick-connect assembly provided in the embodiment;
[0027] Figure 3 This is a schematic diagram showing the installation position of the movable insertion rod provided in the embodiment; wherein, Figure 3 (a) is in the clamped state. Figure 3 (b) is in the loosened state;
[0028] Figure 4 This is a schematic diagram of the bottom surface of the base body provided in the embodiment.
[0029] In the picture:
[0030] 1. Seating area;
[0031] 2. Auxiliary components;
[0032] 3. Movable insert; 301. Tapered tip; 302. Threaded rod section; 303. Flange boss;
[0033] 4. Fixed base; 401. Base body; 4011. Insertion hole; 4012. Arc-shaped positioning plate; 4013. Positioning protrusion; 402. Limiting component; 4021. Inclined spring; 4022. Positioning hole; 403. Fastening hole. Detailed Implementation
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] This utility model provides a quick-assembly connection component and a detachable sofa, which is suitable for scenarios that require quick assembly and disassembly of sofas. It can effectively reduce the installation difficulty of detachable sofas and thus improve production efficiency.
[0043] See Figure 1 The detachable sofa provided in this embodiment includes a seating part 1 and several auxiliary parts 2, wherein at least one of the auxiliary parts 2 and the seating part 1 are detachably connected by a quick-connect assembly.
[0044] Optionally, the auxiliary component 2 can be a backrest or armrest, etc., and this utility model does not limit it.
[0045] In this embodiment, the quick-connect assembly includes a movable insert 3 and a fixed base 4.
[0046] See Figure 2 The fixed base 4 includes a base body 401 and a limiting member 402 located on the side of the base body 401 facing away from the movable insertion rod 3. The base body 401 has an insertion hole 4011 for inserting the movable insertion rod 3. The limiting member 402 has two spaced-apart inclined spring pieces 4021 corresponding to the insertion hole 4011. The two inclined spring pieces 4021 elastically abut against the movable insertion rod 3 to prevent the movable insertion rod 3 from being pulled out of the insertion hole 4011.
[0047] The quick-connect assembly and detachable sofa provided in this embodiment fix the upper end of the movable insert rod 3 to the auxiliary component 2 and fix the fixed base 4 to the seating part 1. When the auxiliary component 2 needs to be installed on the seating part 1, the movable insert rod 3 is inserted into the insert rod hole 4011. The inclined spring piece 4021 will elastically abut against the circumferential surface of the movable insert rod 3 from both sides. The relative positioning between the movable insert rod 3 and the fixed base 4 is achieved by relying on the frictional resistance between the inclined spring piece 4021 and the movable insert rod 3, thereby completing the assembly operation between the auxiliary component 2 and the seating part 1.
[0048] The design of the "movable insert 3" and "fixed base 4" allows for easy assembly of the sofa through a simple insertion operation, and is secured using the elastic resistance of the tilting spring 4021, eliminating the cumbersome tightening steps of traditional installation methods. Compared to traditional bolt fastening methods, it eliminates the need for complex bolt and nut alignment operations in confined spaces, greatly simplifying the installation process and reducing installation difficulty, thereby improving installation efficiency.
[0049] Therefore, the quick-connect component and detachable sofa provided by this utility model can effectively reduce the installation difficulty of detachable sofas, thereby improving production efficiency.
[0050] In this embodiment, the distance between the two inclined spring pieces 4021 gradually decreases in the direction away from the base body 401. This structural design facilitates the insertion of the movable rod 3 between the two inclined spring pieces 4021 and increases the resistance encountered when the sliding rod is pulled directly upward, thereby preventing accidental removal of the movable rod 3.
[0051] The movable insert 3 has a tapered tip 301 at one end that inserts into the fixed base 4, and a threaded portion 302 at the other end. A flange boss 303 at the middle position of the movable insert 3 restricts the threaded portion 302 from passing through the insert hole 4011. The tapered tip 301 of the movable insert 3 facilitates insertion into the fixed base 4, while the threaded portion 302 can be used to connect with the auxiliary component 2, providing a flexible assembly method and enhancing the versatility of the connecting components. The flange boss 303 restricts the threaded portion 302 from passing through the insert hole 4011, preventing damage caused by over-insertion of the movable insert 3, while also increasing the stability of the connection and ensuring long-term reliability.
[0052] In this embodiment, both the base body 401 and the limiting member 402 are provided with fastening holes 403. The fixed base 4 can be installed and fixed to the seating part 1 by using fasteners such as bolts or screws through the fastening holes 403.
[0053] Optionally, the insertion hole 4011 is an elongated hole, and the length of the insertion hole 4011 is greater than the length of the inclined spring piece 4021, so that:
[0054] The movable insert 3 has a clamped state located at one end of the insert hole 4011 and elastically abutting against the two inclined spring pieces 4021 (e.g., Figure 3 (a) shown), and a released state having the other end located in the insertion hole 4011 and disengaged from the two inclined springs 4021 (as shown). Figure 3 (b) shown).
[0055] The elongated hole design allows the movable insert 3 to slide to the other end of the hole when disassembly is required, freeing it from the clamping of the inclined spring 4021. This simplifies and speeds up the disassembly process while maintaining stability during installation, thus optimizing the user experience. Specifically, the movable insert 3 is generally clamped, with the two inclined springs 4021 elastically abutting against it to prevent the auxiliary component 2 from detaching from the seating part 1. When the auxiliary component 2 needs to be removed, it must first be pushed so that the auxiliary component 2 drives the movable insert 3 to slide along the insert hole 4011 to the other end. At this point, the movable insert 3 slides to the outside of the two inclined springs 4021 and is in a released state. Once the clamping effect of the two inclined springs 4021 is lost, the sliding insert can be easily pulled upwards out of the insert hole 4011.
[0056] See Figure 4 In this embodiment, the base body 401 is provided with two spaced-apart arc-shaped positioning plates 4012, and the limiting member 402 is located between the two arc-shaped positioning plates 4012. Further, the base body 401 is provided with a plurality of positioning protrusions 4013, and the limiting member 402 is provided with a plurality of positioning holes 4022 corresponding one-to-one with each of the positioning protrusions 4013.
[0057] The arc-shaped positioning plate 4012, the positioning protrusion 4013, and the positioning hole 4022 work together to complete the positioning and alignment between the base body 401 and the limiting part 402, preventing the parts from shifting due to vibration during transportation or use and ensuring the firmness of the connection.
[0058] Optionally, the limiting member 402 and the movable insert 3 are metal parts, while the base body 401 is a plastic part. Both the limiting member 402 and the movable insert 3 require sliding friction; making them metal parts improves durability and extends the product's lifespan. Making the base body 401 a plastic part reduces production costs.
[0059] In summary, the quick-connect assembly and detachable sofa provided in this embodiment have the following advantages:
[0060] ① The sofa can be assembled simply by inserting it, eliminating the need for complicated bolt and nut alignment in a narrow space. This saves on the tedious tightening steps of traditional installation methods, reducing installation difficulty and improving installation efficiency.
[0061] ② Improve connection stability: The design of the inclined spring 4021, the arc-shaped positioning plate 4012, the positioning protrusion 4013 and the positioning hole 4022 ensures the firmness of the connection and prevents the components from shifting during transportation or use;
[0062] ③ Anti-accidental removal design: The inverted octagonal tilt design of the tilting spring 4021 not only facilitates the insertion of the movable plug 3, but also increases the resistance when the movable plug 3 is accidentally removed, thus avoiding accidental disassembly.
[0063] ④ Easy to disassemble: The design of the elongated hole allows the movable insert 3 to easily slide to the other end of the hole when disassembly is required, thus escaping the clamping of the inclined spring 4021 and simplifying the disassembly process.
[0064] ⑤ High flexibility: Applying quick-installation connection components to auxiliary parts such as backrests or armrests allows these parts to be quickly installed and disassembled, which not only improves the functionality of the sofa but also enhances its design flexibility, meeting the personalized needs of different consumers.
[0065] 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 quick-connect assembly, characterized in that, include: Movable plug (3); The fixed base (4) includes a base body (401) and a limiting member (402) located on the side of the base body (401) facing away from the movable plug (3). The base body (401) is provided with a rod hole (4011) for the insertion of the movable rod (3), and the limiting member (402) is provided with two spaced inclined spring pieces (4021) corresponding to the position of the rod hole (4011); the two inclined spring pieces (4021) are used to elastically abut against the movable rod (3) to restrict the movable rod (3) from being pulled out of the rod hole (4011).
2. The quick-connect assembly according to claim 1, characterized in that, The distance between the two inclined springs (4021) gradually decreases in the direction away from the base body (401).
3. The quick-connect assembly according to claim 1, characterized in that, The insertion hole (4011) is an elongated hole, and the length of the insertion hole (4011) is greater than the length of the inclined spring piece (4021), so that: The movable insert (3) has a clamped state in which one end is located in the insert hole (4011) and elastically abuts against the two inclined springs (4021), and a loosened state in which the other end is located in the insert hole (4011) and disengages from the two inclined springs (4021).
4. The quick-connect assembly according to claim 1, characterized in that, The base body (401) is provided with two spaced arc-shaped positioning plates (4012), and the limiting member (402) is located between the two arc-shaped positioning plates (4012).
5. The quick-connect assembly according to claim 1, characterized in that, The base body (401) is provided with a plurality of positioning protrusions (4013), and the limiting member (402) is provided with a plurality of positioning holes (4022) corresponding to each of the positioning protrusions (4013).
6. The quick-connect assembly according to claim 1, characterized in that, Both the base body (401) and the limiting member (402) are provided with fastening holes (403).
7. The quick-connect assembly according to claim 1, characterized in that, The movable insert (3) is inserted into the fixed base (4) at one end with a conical tip (301) and at the other end with a screw (302).
8. The quick-connect assembly according to claim 7, characterized in that, The movable insert (3) has a flange boss (303) at the middle position to restrict the screw part (302) from passing through the insert hole (4011).
9. A detachable sofa, characterized in that, It includes a seating section (1) and several auxiliary parts (2), wherein at least one of the auxiliary parts (2) and the seating section (1) are detachably connected by a quick-connect assembly as described in any one of claims 1-8.
10. The detachable sofa according to claim 9, characterized in that, The auxiliary component (2) is a backrest or armrest.