Sofa hinge convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of sofa hinges, and particularly relates to a sofa hinge convenient to disassemble and assemble, which comprises a first connecting part, the first connecting part is riveted with a second connecting part, the tail end of the second connecting part is movably connected with a detachable buckle, a clamping part is fixedly connected with a clamping piece, the clamping piece is provided with a clamping plate, and the clamping plate is fixedly connected with the first connecting part. The clamping plate is clamped and fixed to a clamping hole formed in the tail end of the second connecting part, and non-destructive quick disassembly of the hinge assembly is achieved through an elastic meshing structure of the clamping piece and the clamping hole in cooperation with double positioning constraint of the first limiting block and the second limiting block. According to the design, the base and the backrest of the sofa bed can be separated into independent modules, the transportation size is smaller than that of a traditional integrated structure, the transportation cost is reduced, and the sofa bed is particularly suitable for standardized packaging requirements of logistics of power distributors and the transportation cost of export containers.

Description

Technical Field

[0001] This utility model belongs to the field of sofa hinge technology, specifically relating to a sofa hinge that is easy to assemble and disassemble. Background Technology

[0002] With the diversification of modern home design, sofa beds have become increasingly popular due to their multifunctionality (combining sitting and reclining functions). As a core connecting component of sofa beds, the structure of the sofa hinge directly affects the product's adjustability, stability, and ease of transport. In transportation and warehousing, traditional one-piece sofa beds often face high logistics costs and low space utilization due to their large size, especially for e-commerce sales models. However, current sofa hinge technology mostly uses welding or bolt-fixed connections, resulting in the base and backrest being inseparable. This leads to a large space requirement during transport, increased susceptibility to hinge deformation or surface damage due to impacts, and a significant increase in logistics costs with increasing size. Utility Model Content

[0003] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a sofa hinge that is easy to assemble and disassemble, so as to solve the problems in the background technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a sofa hinge that is easy to assemble and disassemble, including a first connecting part, the first connecting part being hinged to a second connecting part through a hinged part, a snap-fit ​​part being movably connected to the end of the second connecting part, a snap-fit ​​member being fixedly connected to the snap-fit ​​part, the snap-fit ​​member being provided with a snap-fit ​​plate, and the snap-fit ​​plate being snap-fitted and fixed with a snap-fit ​​hole provided at the end of the second connecting part.

[0005] Preferably, the snap-fit ​​portion is fixedly connected to an auxiliary positioning component, and the auxiliary positioning component is provided with a second limiting block.

[0006] Preferably, the snap-fit ​​part is provided with a snap-fit ​​block, and the snap-fit ​​block snaps into the snap-fit ​​hole.

[0007] Preferably, mounting members are provided on both sides of the snap-fit ​​portion, and mounting holes are provided on the mounting members.

[0008] Preferably, the snap-fit ​​component has first limiting blocks on both sides.

[0009] Compared with the prior art, this utility model has the following advantages:

[0010] The hinge assembly can be disassembled quickly and non-destructively using a snap-fit ​​structure between the snap-fit ​​parts and snap-fit ​​holes, along with dual positioning constraints from the first and second limiting blocks. This design allows the sofa bed base and backrest to be separated into independent modules, resulting in a smaller transport volume compared to traditional one-piece structures. This reduces transportation costs and is particularly suitable for the standardized packaging requirements of e-commerce logistics and the cost of export container shipping. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the present invention (first-person perspective);

[0012] Figure 2 This is a structural schematic diagram of the present invention (second perspective);

[0013] Figure 3 This is a structural schematic diagram of the present invention (third-person perspective);

[0014] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0015] The reference numerals in the accompanying drawings include:

[0016] 1-First connecting part, 11-Hinged part, 2-Second connecting part, 21-Connecting hole, 3-Snap-fit ​​part, 31-Snap-fit ​​component, 311-Snap-fit ​​plate, 312-First limiting block, 32-Auxiliary positioning component, 321-Second limiting block, 33-Mounting component, 34-Snap-fit ​​block. Detailed Implementation

[0017] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0019] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-4 As shown, this utility model provides a sofa hinge that is easy to assemble and disassemble, including a first connecting part 1. The first connecting part 1 is hinged to a second connecting part 2 through a hinge part 11. A snap-fit ​​part 3 is movably connected to the end of the second connecting part 2. A snap-fit ​​member 31 is fixedly connected to the snap-fit ​​part 3. The snap-fit ​​member 31 is provided with a snap-fit ​​plate 311. The snap-fit ​​plate 311 is snapped and fixed with a snap-fit ​​hole 21 provided at the end of the second connecting part 2.

[0022] Specifically, refer to Figure 4The snap-fit ​​plate 311 and the snap-fit ​​component 31 are integrally formed. The angle at the connection between the snap-fit ​​plate 311 and the snap-fit ​​component 31 is greater than 90°. The snap-fit ​​plate 311 can be moved up and down at a certain angle. A downward protrusion is provided at the end of the snap-fit ​​plate 311. When the snap-fit ​​part 3 and the second connecting part 2 are snapped together, this downward protrusion will be locked in the snap-fit ​​hole 21. Several through holes for installation connection are equidistantly opened on the two adjacent side walls of the first connecting part 1. During installation, the first connecting part 1 is connected to the fixed part of the sofa bed, and the second connecting part 2 is movably connected to... The snap-fit ​​part 3 is connected to the part of the sofa bed that needs to be disassembled. By hinged the first connecting part 1 and the second connecting part 2, and designing a movable snap-fit ​​part 3 and an elastic snap-fit ​​part 31 at the end of the second connecting part 2, the non-destructive quick disassembly and assembly of the hinge assembly is realized. The elastic interlocking structure of the snap-fit ​​plate and the snap-fit ​​hole simplifies the operation steps, and separation can be completed without tools, which significantly reduces the volume of the sofa bed during transportation. It is especially suitable for the standardized packaging requirements of e-commerce logistics, while avoiding the disassembly difficulties caused by traditional welding or bolt fixing.

[0023] Furthermore, the snap-fit ​​part 3 is fixedly connected to an auxiliary positioning member 32, and a second limiting block 321 is provided on the auxiliary positioning member 32.

[0024] Specifically, refer to Figure 4 The auxiliary positioning component 32 is fixedly connected to the snap-fit ​​part 3. It is mainly used to prevent the snap-fit ​​part 3 from swinging left and right after installation. The second limiting blocks 321 set on both sides of the auxiliary positioning component 32 are inverted L-shaped. Their hooks are not tightly fitted with the second connecting part 2 so that the second connecting part 2 can slide in smoothly. The connection stability between the snap-fit ​​part 3 and the second connecting part 2 is improved. The second limiting blocks 321 can limit the positional deviation of the snap-fit ​​part 3 and further simplify the user's alignment and installation process.

[0025] Furthermore, a snap-fit ​​block 34 is provided on the snap-fit ​​part 3, and the snap-fit ​​block 34 snaps into the snap-fit ​​hole 21.

[0026] Specifically, the snap-fit ​​block 34 is designed at an angle on the side of the snap-fit ​​part 3 that is in contact with the second connecting part 2. When installing the snap-fit ​​part 3, the snap-fit ​​block 34 must be pressed first and then inserted into the second connecting part 2. When the second connecting part 2 is inserted to a certain distance, the snap-fit ​​block 34 will pop out from the snap-fit ​​hole 21 to complete the snap-fit. The snap-fit ​​hole 21 is a rectangular through hole. The snap-fit ​​block 34 can improve the stability after the snap-fit ​​is completed.

[0027] Furthermore, mounting parts 33 are provided on both sides of the snap-fit ​​part 3, and mounting holes are provided on the mounting parts 33.

[0028] Specifically, the mounting part 33 is integrally formed with the snap-fit ​​part 3. The mounting part 33 is located between the mounting snap-fit ​​part 31 and the auxiliary positioning part 32. The mounting part 33 has mounting holes, which can be connected to the parts of the sofa bed that need to be disassembled through the connector. The mounting holes support standardized screws or pins for fixing, which facilitates rapid assembly on the production line and provides convenience for subsequent maintenance and replacement, thereby enhancing the versatility and expandability of the product.

[0029] Furthermore, the card connector 31 is provided with first limiting blocks 312 on both sides.

[0030] Specifically, the first limiting blocks 312 are provided on both sides of the snap-fit ​​component 31, which can physically limit the snap-fit ​​plate 311 to prevent it from shifting excessively or coming out of the snap-fit ​​hole 21 during elastic deformation, thus ensuring accurate alignment of the snap-fit ​​action.

[0031] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software or methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A sofa hinge that is easy to assemble and disassemble, comprising a first connecting part (1), characterized in that: The first connecting part (1) is hinged to the second connecting part (2) through the hinge part (11). The end of the second connecting part (2) is movably connected to the snap-fit ​​part (3). The snap-fit ​​part (3) is fixedly connected to the snap-fit ​​member (31). The snap-fit ​​member (31) is provided with a snap-fit ​​plate (311). The snap-fit ​​plate (311) is snapped and fixed with the snap-fit ​​hole (21) provided at the end of the second connecting part (2).

2. The sofa hinge that is easy to assemble and disassemble as described in claim 1, characterized in that: The snap-fit ​​part (3) is fixedly connected to an auxiliary positioning component (32), and a second limiting block (321) is provided on the auxiliary positioning component (32).

3. The sofa hinge that is easy to assemble and disassemble as described in claim 1, characterized in that: The snap-fit ​​part (3) is provided with a snap-fit ​​block (34), which snaps into the snap-fit ​​hole (21).

4. A sofa hinge that is easy to assemble and disassemble as described in claim 1, characterized in that: The snap-fit ​​part (3) is provided with mounting parts (33) on both sides, and mounting holes are provided on the mounting parts (33).

5. A sofa hinge that is easy to assemble and disassemble as described in claim 1, characterized in that: The snap-fit ​​component (31) has first limiting blocks (312) on both sides.

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