A chair assembly structure

Abstract

This utility model discloses a chair assembly structure, including a chair frame, a seat, and a backrest. The seat is fixedly connected to the chair frame, and the chair frame has upwardly extending connecting rods on both sides. The backrest is located between two connecting rods. The connecting rods are hollow inside and have an insertion interface facing the backrest. The backrest has connecting parts on both sides, which pass through the insertion interface and are inserted into the connecting rods. A limiting component is fixedly connected to the connecting part, and the limiting component is placed inside the connecting rod and fits against the inner wall of the connecting rod. This structure achieves a stable connection between the backrest and the chair frame through the insertion and engagement of the connecting parts and the connecting rods, combined with the fitting and limiting effect of the limiting component against the inner wall of the connecting rod. Compared with the traditional exposed screw connection method, this structure ensures connection strength while avoiding the problems of exposed screws affecting aesthetics and susceptibility to impacts, improving product safety and aesthetics, and offering convenient assembly and strong practicality.

Description

Technical Field

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

[0002] In daily life and work, chairs are indispensable seating furniture, and their structural design directly affects the user experience and aesthetic appearance. Currently, most chairs on the market typically consist of a seat, a backrest, and a connecting rod that supports and connects the two. Among these, the stability of the connection between the backrest and the seat connecting rod is crucial to ensuring the overall structural strength of the chair.

[0003] To ensure a stable fixation of the chair back, existing technologies commonly employ screw connections. This involves passing screws through pre-drilled mounting holes in the connecting rod and screwing them into the corresponding threaded holes in the chair back, thus securing the two tightly. This connection method is widely used in chair manufacturing due to its ease of operation and high connection strength.

[0004] However, the aforementioned structure using exposed screws for connection has obvious drawbacks: on the one hand, exposed screws disrupt the overall visual unity of the chair, especially in modern furniture that emphasizes design and aesthetics, where protruding screws can significantly affect the product's appearance and reduce the user's visual experience; on the other hand, exposed screw heads usually form a protruding structure, and during the use of the chair, body parts (such as the back, arms, etc.) may inadvertently collide or rub against the protruding screws, which can easily cause discomfort to the user and may even scratch clothing, posing a certain safety hazard.

[0005] Therefore, how to ensure the stability of the connection between the chair back and the seat connecting rod while avoiding the aesthetic problems and easy bumps caused by exposed screws has become a technical problem that urgently needs to be solved in the existing chair structure design. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a chair assembly structure.

[0007] A chair assembly structure designed for this purpose includes a chair frame, a seat, and a backrest;

[0008] The chair seat is fixedly connected to the chair frame;

[0009] The chair frame is provided with upward-extending connecting rods on the left and right sides, and the chair back is located between the two connecting rods.

[0010] The connecting rod is hollow inside and has an insertion interface facing the chair back; the chair back has connecting parts on the left and right sides, and the connecting parts pass through the insertion interface and are inserted into the connecting rod.

[0011] The connecting part is fixedly connected to a limiting member, which is disposed inside the connecting rod and fits against the inner wall of the connecting rod.

[0012] Preferably, the connecting rod is provided with an installation port, and the limiting member is inserted into the interior of the connecting rod through the installation port. The installation port is detachably connected with a decorative cover.

[0013] Preferably, the seat and the backrest are connected to each other.

[0014] Preferably, the seat and the backrest are an integral structure.

[0015] Preferably, the chair frame is provided with several mounting rods, and the chair seat is fixedly connected to the mounting rods.

[0016] Compared with the prior art, the chair assembly structure provided by this utility model has significant advantages:

[0017] In terms of aesthetics, this structure completely abandons the traditional exposed screw connection method. The connecting part and limiting part of the chair back are hidden in the hollow connecting rod inside, so that there are no protruding parts on the outside of the chair for fixing. This design makes the overall lines of the chair smoother and more unified, presenting a stronger sense of integrity and simplicity. It can perfectly match the pursuit of design aesthetics in modern furniture and greatly improve the appearance quality and market competitiveness of the product.

[0018] In terms of safety, since the connecting structure is completely concealed inside the connecting rod, it avoids the protruding structure formed by traditional exposed screws. This fundamentally eliminates the risk of collision or friction between the user's body parts (such as the back, arms, etc.) and protruding parts during use, effectively reducing the risk of physical discomfort and clothing snagging, and bringing users a safer and more comfortable user experience.

[0019] In summary, this chair assembly structure, while ensuring connection stability, specifically addresses the problems of poor aesthetics and susceptibility to damage associated with traditional screw connections. It significantly improves product aesthetics and safety, demonstrating outstanding technological advancement and application value. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is one of the exploded structural diagrams of this utility model;

[0022] Figure 3 This is the second exploded structural diagram of the present invention;

[0023] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle. Detailed Implementation

[0025] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0028] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0029] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0030] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0031] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0032] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0033] See Figures 1-5 A chair assembly structure includes a chair frame 10, a seat 20, and a backrest 30; the seat 20 is fixedly connected to the chair frame 10; the chair frame 10 has upwardly extending connecting rods 110 on its left and right sides, and the backrest 30 is disposed between the two connecting rods 110; the connecting rods 110 are hollow inside and have an insertion interface 120 facing the backrest 30; the backrest 30 has connecting portions 310 on its left and right sides, the connecting portions 310 passing through the insertion interface 120 and being inserted into the connecting rods 110; the connecting portions 310 are fixedly connected to limiting members 40, the limiting members 40 being disposed inside the connecting rods 110 and fitting against the inner wall of the connecting rods 110.

[0034] The assembly principle of this chair assembly structure is based on the deformation characteristics of the connecting rod and the interlocking fit between components. The specific process is as follows:

[0035] During assembly, the deformable characteristics of the connecting rod 110 (which is a tubular component with a certain deformation capacity) are first utilized. By using external force to bend the two connecting rods 110 on the left and right sides, the two connecting rods 110 are deformed in a direction away from the chair back 30, thereby increasing the distance between the two connecting rods 110. This ensures that the connecting parts 310 on the left and right sides of the chair back 30 can be smoothly aligned and pass through the insertion interface 120 on the side of the connecting rod 110 facing the chair back 30, thus completing the insertion of the connecting part 310 into the connecting rod 110.

[0036] After the connecting part 310 is inserted into the connecting rod 110, the external force on the connecting rod 110 is released, allowing it to reset under its own elastic restoring force. At this time, the connecting part 310 and the insertion interface 120 form a preliminary positioning fit (i.e., the left and right side walls of the chair back 30 are in contact with the outer wall of the connecting rod 110). Subsequently, the limiting member 40 is inserted into the connecting rod 110 from its end or a pre-set installation port, and the limiting member 40 is fixedly connected to the connecting part 310 (such as a snap-fit ​​connection, threaded connection, etc.). Since the limiting member 40 is in contact with the inner wall of the connecting rod 110, the displacement of the connecting part 310 within the connecting rod 110 is restricted under their combined action, thereby achieving a stable assembly between the chair back 30 and the chair frame 10.

[0037] See Figure 3 and Figure 5 The connecting rod 110 is provided with an installation port 111. The limiting member 40 is inserted into the connecting rod 110 through the installation port 111. A decorative cover 50 is detachably connected to the installation port 111. The installation port 111 of the connecting rod 110 provides a channel for the limiting member 40 to be inserted into the connecting rod, forming the basis of the concealed fixing structure. After the limiting member 40 is inserted through the installation port 111, it is fixed to the backrest connection part 310 and fits against the inner wall of the connecting rod, limiting the displacement of the connection part and ensuring a stable connection between the backrest and the chair frame. The decorative cover 50 is detachably connected to the installation port 111, concealing the internal structure to improve the appearance and reducing dust ingress.

[0038] The decorative cover 50 can be detachably connected to the mounting port 111, and the two can be connected using existing detachable connection structures such as snap-fit ​​or threaded connection.

[0039] Specifically, the mounting port 111 is located at the upper end of the connecting rod 110.

[0040] In this utility model, the limiting member 40 is fastened to the connecting part 310 by screws 60.

[0041] In this invention, the seat 20 and the backrest 30 are connected to each other.

[0042] In this utility model, the seat 20 and the backrest 30 are an integral structure.

[0043] In this utility model, the chair frame 10 is provided with a plurality of mounting rods 130, and the chair seat 20 is fixedly connected to the mounting rods 130.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A chair assembly structure characterized by: Chair frame (10), chair seat (20) and chair back (30) are included. The chair seat (20) is fixedly connected with the chair frame (10). The chair frame (10) is provided with upwardly extending connecting rods (110) on the left and right sides, and the chair back (30) is arranged between the two connecting rods (110). The connecting rod (110) is hollow inside and is provided with a plug-in interface (120) on the side facing the chair back (30); the chair back (30) is provided with connecting parts (310) on the left and right sides, and the connecting parts (310) are plugged into the connecting rod (110) through the plug-in interface (120); The connecting part (310) is fixedly connected with a limiting piece (40), and the limiting piece (40) is arranged in the connecting rod (110) and is attached to the inner wall of the connecting rod (110).

2. The chair assembly structure according to claim 1, wherein: The connecting rod (110) is provided with a mounting port (111), and the limiting piece (40) is plugged into the connecting rod (110) from the mounting port (111), and the mounting port (111) is detachably connected with a decorative cover (50).

3. The chair assembly structure according to claim 1, wherein: The left and right side walls of the chair back (30) are attached to the outer wall of the connecting rod (110).

4. The chair assembly structure according to claim 1, wherein: The chair seat (20) and the chair back (30) are connected with each other.

5. The chair assembly structure according to claim 4, wherein: The chair seat (20) and the chair back (30) are of an integrated structure.

6. The chair assembly structure according to claim 1, wherein: The chair frame (10) is provided with a plurality of mounting rods (130), and the chair seat (20) is fixedly connected with the mounting rod (130).

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