A sofa adjusting frame and a sofa

Abstract

The utility model relates to the field of sofa, disclose a sofa adjusting frame and sofa for the adjustment between sofa body and sofa backrest, its characterized in that, including frame body, be equipped with backrest adjusting module and / or headrest adjusting module on the frame body, the frame body bottom is equipped with mounting piece, the mounting seat is equipped with on sofa body, and the mounting piece and mounting seat plug -in connection are connected. The mounting seat is fixed in the sofa backrest inside or is fixed in the sofa body inside through bolt, and the plug -in connection mode of mounting piece and mounting seat simplifies the installation process, can quickly complete the assembly without using the tool, improves production efficiency, and reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of sofa technology, specifically to a sofa adjustment frame and a sofa. Background Technology

[0002] Sofas are a common type of home furniture. As user needs have increased, sofa backrests have gradually been designed with adjustable features. Specifically, an adjustable frame allows for backrest adjustment (forward / backward position and headrest flex). However, current sofa adjustable frames are relatively complex to install, typically using bolts. Furthermore, the adjustable frame is located inside the sofa, where space is limited, making assembly difficult and inefficient. Utility Model Content

[0003] To address at least one of the aforementioned problems, this utility model first provides a sofa adjustment frame for adjusting the sofa body and the sofa backrest. The frame includes a frame body, on which a backrest adjustment module and / or a headrest adjustment module are provided. A mounting component is provided at the bottom of the frame body, and a mounting seat is provided on the sofa body. The mounting component and the mounting seat are plugged into each other.

[0004] Optionally, the mounting component is provided with a plug-in part, the plug-in part is provided with a limiting groove, and the mounting base is provided with a plug-in cavity and an elastic limiting block. After the plug-in part is inserted into the plug-in cavity, the limiting block and the limiting groove are engaged.

[0005] Optionally, the mounting base includes a first housing and a second housing, and the insertion cavity is formed by the first housing and the second housing covering each other. The first housing is provided with a buckle, and the second housing is provided with a slot. The buckle and the slot engage with each other.

[0006] Optionally, the first housing has a protruding connecting post, and the second housing has a connecting hole, wherein the connecting post and the connecting hole are inserted into each other.

[0007] Optionally, the frame is provided with a connecting frame, the two ends of which are respectively connected to the backrest adjustment module and the headrest adjustment module. The backrest adjustment module includes a linkage assembly, the two ends of which are respectively rotatably connected to the connecting frame and the mounting component.

[0008] Optionally, the linkage assembly includes a first linkage and a second linkage, the first linkage being disposed at the rear end of the second linkage and adapted to abut against the second linkage, the first linkage being arc-shaped and the second linkage being wavy.

[0009] Optionally, the first connecting rod includes an inner arc portion and an outer arc portion, the inner arc portion being adapted to abut against the second connecting rod, the outer arc portion being located on the side of the first connecting rod away from the second connecting rod, and the second connecting rod including a recess portion being located at the end of the second connecting rod opposite to the first connecting rod, the recess portion being adapted to abut against the sofa body.

[0010] Optionally, the headrest adjustment module includes a connecting rod, a rotating component, a fixing component, and a tension spring. The two ends of the connecting rod are respectively fixedly connected to the two rotating components, the rotating components and the fixing components are fixedly connected, and the two ends of the tension spring are simultaneously hooked to the rotating components and the fixing components.

[0011] Optionally, the rotating component has a first limiting part and a second limiting part at one end near the fixing part, and the fixing part has a limiting post, which is adapted to abut against the first limiting part and the second limiting part; when the first limiting part and the limiting post abut against each other, the sofa headrest is in an upright state; when the second limiting part and the limiting post abut against each other, the sofa headrest is in a bent state.

[0012] Compared to existing technologies, the sofa adjustment frame of this utility model uses a mounting base that is fixed inside the sofa backrest or inside the sofa body with bolts. The installation process is simplified by using a plug-in connection between the mounting component and the mounting base. Assembly can be completed quickly without the use of tools, which improves production efficiency and reduces production costs.

[0013] In addition, this utility model provides a sofa, including the sofa adjustment frame as described above.

[0014] Compared with the prior art, the sofa described in this utility model has the same advantages as the sofa adjustment frame mentioned above, which will not be repeated here. Attached Figure Description

[0015] Figure 1 The structure of the sofa adjustment frame in this embodiment of the utility model Figure 1 ;

[0016] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0017] Figure 3 This is an exploded view of the mounting base according to an embodiment of the present utility model;

[0018] Figure 4 for Figure 1 Enlarged view of section B;

[0019] Figure 5 for Figure 1 Enlarged view of section C;

[0020] Figure 6 The structure of the sofa adjustment frame in this embodiment of the utility model Figure 2 ;

[0021] Figure 7 for Figure 6 Enlarged view of section D in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Mounting component; 11. Insertion part; 12. Limiting groove; 2. Mounting base; 21. Insertion cavity; 22. First housing; 221. Limiting block; 222. Buckle; 223. Connecting post; 23. Second housing; 231. Slot; 232. Connecting hole; 3. Connecting frame; 4. First connecting rod; 41. Inner arc part; 42. Outer arc part; 5. Second connecting rod; 51. Recess; 6. Connecting rod; 7. Rotating component; 71. First limiting part; 72. Second limiting part; 8. Fixing component; 81. Limiting post; 9. Tension spring. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] The accompanying drawings of the embodiments of this utility model provide a coordinate system XYZ, where the positive direction of the X-axis represents the left and the negative direction of the X-axis represents the right, the positive direction of the Y-axis represents the front and the negative direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top and the negative direction of the Z-axis represents the bottom.

[0026] This utility model embodiment provides a sofa adjustment frame, combined with Figures 1 to 7 As shown, the adjustment between the sofa body and the sofa backrest includes a frame, on which a backrest adjustment module and / or a headrest adjustment module are provided. A mounting component 1 is provided at the bottom of the frame, and a mounting seat 2 is provided on the sofa body. The mounting component 1 and the mounting seat 2 are plugged into each other.

[0027] like Figure 1 As shown, in this embodiment, both the backrest adjustment module and the headrest adjustment module are housed inside the sofa backrest. The backrest adjustment module adjusts the front and back position of the backrest to accommodate the user's needs for sitting forward or backward, while the headrest adjustment module adjusts the bending angle of the headrest to make the user's leaning experience more comfortable. The headrest can be changed at multiple angles to conform to the human body.

[0028] Mounting base 2 is fixed inside the sofa backrest or inside the sofa body with bolts. The installation process is simplified by the plug-in connection between mounting part 1 and mounting base 2. Assembly can be completed quickly without the use of tools, which improves production efficiency and reduces production costs.

[0029] like Figure 2As shown, optionally, the mounting component 1 is provided with a plug-in part 11, the plug-in part 11 is provided with a limiting groove 12, and the mounting base 2 is provided with a plug-in cavity 21 and an elastic limiting block 221. After the plug-in part 11 is inserted into the plug-in cavity 21, the limiting block 221 and the limiting groove 12 are engaged.

[0030] In this embodiment, four limiting blocks 221 are distributed on a mounting base 2, arranged in pairs, one above the other, on the left and right sides inside the mounting base 2. The cooperation between the insertion part 11 and the insertion cavity 21, combined with the snap-fit ​​design of the elastic limiting blocks 221 and the limiting groove 12, ensures a firm connection between the mounting part 1 and the mounting base 2, effectively preventing loosening or falling off during use, improving the installation stability and safety of the adjustment frame. At the same time, the design of the elastic limiting blocks 221 allows for a certain tolerance compensation to accommodate manufacturing differences of different insertion parts 11.

[0031] like Figure 3 As shown, optionally, the mounting base 2 includes a first housing 22 and a second housing 23, and the insertion cavity 21 is formed by the first housing 22 and the second housing 23 covering each other. The first housing 22 is provided with a buckle 222, and the second housing 23 is provided with a slot 231. The buckle 222 and the slot 231 are engaged with each other.

[0032] In this embodiment, the limiting block 221 is disposed on the first housing 22. The split design of the first housing 22 and the second housing 23, through the snap-fit ​​method of the buckle 222 and the slot 231, realizes the quick assembly and disassembly of the mounting base 2, further simplifying the production and assembly process of the mounting base 2 and improving production efficiency.

[0033] like Figure 3 As shown, optionally, the first housing 22 is provided with a connecting post 223, and the second housing 23 is provided with a connecting hole 232, wherein the connecting post 223 and the connecting hole 232 are inserted into each other.

[0034] In this embodiment, the connecting posts 223 are distributed at the four corners of the insertion cavity 21. The insertion design of the connecting posts 223 and the connecting holes 232 provides additional positioning and fixing points for the first housing 22 and the second housing 23, ensuring precise alignment of the two housings during assembly. This enhances the overall structural strength of the mounting base 2, preventing the housings from shifting or deforming under stress, thereby improving the reliability and durability of the adjustment frame.

[0035] like Figure 1 As shown, optionally, the frame is provided with a connecting frame 3, and the two ends of the connecting frame 3 are respectively connected to the backrest adjustment module and the headrest adjustment module. The backrest adjustment module includes a linkage assembly, and the two ends of the linkage assembly are respectively rotatably connected to the connecting frame 3 and the mounting component 1.

[0036] In this embodiment, the connecting frame 3 serves as the core support structure, integrating the backrest and headrest adjustment modules together to achieve a linkage adjustment function.

[0037] like Figure 5 As shown, optionally, the linkage assembly includes a first linkage 4 and a second linkage 5. The first linkage 4 is disposed at the rear end of the second linkage 5. The first linkage 4 is adapted to abut against the second linkage 5. The first linkage 4 is arc-shaped, and the second linkage 5 is wavy.

[0038] In this embodiment, there are two first connecting rods 4 and two second connecting rods 5, respectively located at the left and right ends of the connecting frame 3. The cooperation of one first connecting rod 4 and one second connecting rod 5 can share the pressure, preventing breakage of either the first connecting rod 4 or the second connecting rod 5 during rotation. The arc shape of the first connecting rod 4 and the wave-shaped design of the second connecting rod 5 form a unique contact surface, enabling the connecting rod assembly to disperse stress and adapt to different angle changes during adjustment, improving the fatigue resistance of the connecting rod assembly and reducing the risk of breakage due to stress concentration.

[0039] like Figure 5 As shown, optionally, the first connecting rod 4 includes an inner arc portion 41 and an outer arc portion 42. The inner arc portion 41 is adapted to abut against the second connecting rod 5. The outer arc portion 42 is located on the side of the first connecting rod 4 away from the second connecting rod 5. The second connecting rod 5 includes a recess 51, which is located at the end of the second connecting rod 5 opposite to the first connecting rod 4. The recess 51 is adapted to abut against the sofa body.

[0040] In this embodiment, the linkage assembly has a forward movement state and a backward movement state, such as... Figure 1 The diagram shows the rearward position. In this state, the first railing abuts against the rear end of the second link 5, and the backrest is positioned further back. The second link 5 abuts against the first link 4, transferring the pressure to the arc-shaped first link 4 to buffer the pressure. When the linkage assembly is in the forward position, the recess 51 of the second link 5 abuts against the edge of the sofa body near the backrest, allowing for a closer fit to the curved edge of the sofa body and providing a stable support surface. The design of the inner arc portion 41 and the outer arc portion 42 optimizes the contact point between the first link 4 and the second link 5, enhancing the load-bearing capacity and stability of the adjustment frame.

[0041] like Figure 4 and Figure 7 As shown, optionally, the headrest adjustment module includes a connecting rod 6, a rotating component 7, a fixing component 8, and a tension spring 9. The two ends of the connecting rod 6 are respectively fixedly connected to the two rotating components 7, the rotating components 7 and the fixing components 8 are fixedly connected, and the two ends of the tension spring 9 are simultaneously hooked to the rotating components 7 and the fixing components 8.

[0042] In this embodiment, the multi-angle adjustment and effortless reset functions of the headrest are achieved through the cooperation of the connecting rod 6, the rotating component 7, and the tension spring 9. Both the headrest adjustment module and the backrest adjustment module are driven by electric push rods or other drive devices, which is existing technology and will not be described further. The tension of the tension spring 9, in conjunction with the rotation angle of the rotating component 7, converts the tension into a self-locking force, which balances the pushing force of the electric push rod and the leaning force of the user's head, thus maintaining the headrest position. Simultaneously, when the electric push rod pushes the connecting rod 6 to reset, the restoring force of the tension spring 9 provides auxiliary power for the reset. Furthermore, when the user leans against the headrest, the tension spring 9 acts as a buffer, reducing impact and extending the overall lifespan of the headrest adjustment module.

[0043] like Figure 4 and Figure 7 As shown, optionally, the rotating member 7 has a first limiting part 71 and a second limiting part 72 at one end near the fixing member 8, and the fixing member 8 has a limiting post 81, which is adapted to abut against the first limiting part 71 and the second limiting part 72; when the first limiting part 71 and the limiting post 81 abut against each other, the sofa headrest is in an upright state; when the second limiting part 72 and the limiting post 81 abut against each other, the sofa headrest is in a bent state.

[0044] In this embodiment, the abutment design between the first limiting part 71 and the second limiting part 72 and the limiting post 81 provides a clear positioning point for the headrest adjustment, ensuring the adjustment limit position and stability in both upright and bent states.

[0045] Another embodiment of this utility model provides a sofa, including the sofa adjustment frame as described above.

[0046] Similarly, the components included in the "components," "mechanisms," and "devices" of this disclosure can also be flexibly combined. They can be modularly produced according to actual needs and assembled as an independent module; or they can be assembled separately to form a module in this device. The division of the above-mentioned components in this disclosure is only one embodiment for ease of reading and is not intended to limit the scope of protection of this disclosure. Any technical solution that includes the above-mentioned components and has the same function should be understood as an equivalent technical solution of this disclosure.

[0047] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "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 accompanying drawings. They are used only for the convenience of describing this disclosure 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 this disclosure.

[0048] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0050] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A sofa adjustment frame for adjusting the sofa body and the sofa backrest, characterized in that, The sofa includes a frame, on which a backrest adjustment module and / or a headrest adjustment module are provided. A mounting component (1) is provided at the bottom of the frame, and a mounting seat (2) is provided on the sofa body. The mounting component (1) and the mounting seat (2) are connected by insertion.

2. The sofa adjustment frame according to claim 1, characterized in that, The mounting component (1) is provided with a plug-in part (11), the plug-in part (11) is provided with a limiting groove (12), the mounting base (2) is provided with a plug-in cavity (21) and an elastic limiting block (221), after the plug-in part (11) is inserted into the plug-in cavity (21), the limiting block (221) and the limiting groove (12) are engaged.

3. The sofa adjustment frame according to claim 2, characterized in that, The mounting base (2) includes a first housing (22) and a second housing (23). The insertion cavity (21) is formed by the first housing (22) and the second housing (23) covering each other. The first housing (22) is provided with a buckle (222), and the second housing (23) is provided with a slot (231). The buckle (222) and the slot (231) are engaged.

4. The sofa adjustment frame according to claim 3, characterized in that, The first housing (22) has a protruding connecting post (223), and the second housing (23) has a connecting hole (232). The connecting post (223) and the connecting hole (232) are inserted into each other.

5. The sofa adjustment frame according to claim 1, characterized in that, The frame is provided with a connecting frame (3), and the two ends of the connecting frame (3) are respectively connected to the backrest adjustment module and the headrest adjustment module. The backrest adjustment module includes a linkage assembly, and the two ends of the linkage assembly are respectively rotatably connected to the connecting frame (3) and the mounting component (1).

6. The sofa adjustment frame according to claim 5, characterized in that, The linkage assembly includes a first link (4) and a second link (5). The first link (4) is disposed at the rear end of the second link (5). The first link (4) is adapted to abut against the second link (5). The first link (4) is arc-shaped, and the second link (5) is wavy.

7. The sofa adjustment frame according to claim 6, characterized in that, The first connecting rod (4) includes an inner arc portion (41) and an outer arc portion (42). The inner arc portion (41) is adapted to abut against the second connecting rod (5). The outer arc portion (42) is located on the side of the first connecting rod (4) away from the second connecting rod (5). The second connecting rod (5) includes a recess (51). The recess (51) is located at the end of the second connecting rod (5) away from the first connecting rod (4). The recess (51) is adapted to abut against the sofa body.

8. The sofa adjustment frame according to any one of claims 1-7, characterized in that, The headrest adjustment module includes a connecting rod (6), a rotating component (7), a fixing component (8), and a tension spring (9). The two ends of the connecting rod (6) are fixedly connected to the two rotating components (7) respectively. The rotating components (7) and the fixing component (8) are fixedly connected. The two ends of the tension spring (9) are simultaneously hooked to the rotating components (7) and the fixing component (8).

9. The sofa adjustment frame according to claim 8, characterized in that, The rotating part (7) has a first limiting part (71) and a second limiting part (72) at one end near the fixing part (8). The fixing part (8) has a limiting post (81) which is adapted to abut against the first limiting part (71) and the second limiting part (72). When the first limiting part (71) abuts against the limiting post (81), the sofa headrest is in an upright state. When the second limiting part (72) abuts against the limiting post (81), the sofa headrest is in a bent state.

10. A sofa, characterized in that, Including the sofa adjustment frame as described in any one of claims 1-9.

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