Zero-wall functional iron stand and sofa

Abstract

The zero-wall functional iron stand comprises a fixing frame, a backrest mechanism, a linkage mechanism, a foot support mechanism and a driving component, the backrest mechanism comprises a backrest assembly and a backrest connecting piece, the linkage mechanism comprises a seat frame and a middle linkage component, the backrest connecting piece comprises a first connecting piece, a second connecting piece and a third connecting piece, and the first connecting piece, the second connecting piece and the third connecting piece are arranged on the fixing frame. The backrest assembly comprises a backrest leaning plate, a backrest fixing plate, a backrest middle rod, a backrest first connecting rod, a backrest connecting rod assembly and a backrest connecting assembly, and a middle linkage part drives a first connecting piece, a second connecting piece and a third connecting piece to move and can drive the backrest assembly to move relative to a wall; the backrest connecting assembly can control the relative distance between the backrest middle rod and the backrest connecting rod assembly, the backrest first connecting rod can drive the backrest leaning plate to rotate greatly, large-amplitude rotation of the backrest leaning plate can be achieved after the backrest leaning plate is horizontally moved to be away from the wall, large-angle rotation of the backrest assembly can be achieved, interference with the wall is avoided, and the backrest connecting rod assembly is convenient to use. And the space utilization rate and comfort are improved.

Description

Technical Field

[0001] The present application relates to the field of home furnishing technology, and in particular to a zero-wall functional iron frame and a sofa. Background Art

[0002] Existing zero-wall sofas generally include a fixed frame, a seat frame, a backrest and a footrest. When the driving component drives the footrest and the seat frame to move, the backrest will rotate to adjust the posture of the sofa. The backrest will not interfere with the wall during the adjustment process from the original state to the maximum change angle. In the related technology, the inclination angle of the backrest mechanism of the functional iron frame is small. When the inclination angle of the backrest mechanism increases, it may interfere with the wall; the height of the wooden frame set on the backrest mechanism is also limited by the inclination angle. If the height of the wooden frame is too high, it may also interfere with the wall, and zero wall leaning cannot be achieved, which reduces the space utilization rate and user experience of the sofa. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a zero-wall-supporting iron frame that can realize large-angle rotation of the backrest and does not interfere with the wall.

[0004] The application also proposes a sofa using the functional iron frame.

[0005] The zero-wall function iron frame of the embodiment of the present application includes:

[0006] Fixed frame;

[0007] A backrest mechanism, the backrest mechanism comprising a backrest assembly and a backrest connecting member, the backrest assembly being rotatably connected to the fixing frame via the backrest connecting member;

[0008] A linkage mechanism, the linkage mechanism comprising a seat frame and an intermediate linkage component, the intermediate linkage component being rotatably connected to the seat frame and the fixing frame;

[0009] A foot support mechanism, the foot support mechanism being rotatably mounted on the seat frame;

[0010] A driving component, the driving component is arranged between the fixing frame and the foot support mechanism;

[0011] Wherein, the backrest connecting member includes a first connecting member, a second connecting member and a third connecting member, and the backrest assembly includes a backrest leaning plate, a backrest fixing plate, a backrest intermediate rod, a backrest first connecting rod, a backrest connecting rod assembly and a backrest connecting assembly;

[0012] The first connecting member is rotatably connected to the fixing frame, two ends of the second connecting member are rotatably connected to the first connecting member and the intermediate linkage member respectively, one end of the third connecting member is rotatably connected to the second connecting member, and the other end of the third connecting member is rotatably connected to the back-supporting intermediate rod;

[0013] The middle part of the backrest intermediate rod is hinged on the backrest fixed plate, and the two ends of the backrest intermediate rod are rotatably connected to the third connecting member and the backrest first connecting rod respectively; the two ends of the backrest first connecting rod are rotatably connected to the backrest intermediate rod and the backrest leaning plate respectively; the two ends of the backrest connecting rod assembly are rotatably connected to the backrest leaning plate and the backrest fixed plate respectively; the two ends of the backrest connecting rod assembly are rotatably connected to the backrest intermediate rod and the backrest connecting rod assembly respectively.

[0014] The zero-wall-leaning functional iron frame according to the first aspect embodiment of the present application has at least the following beneficial effects: the zero-wall-leaning functional iron frame of the present application comprises a fixed frame, a backrest mechanism, a linkage mechanism, a footrest mechanism and a driving component, the backrest mechanism comprises a backrest assembly and a backrest connecting member, the linkage mechanism comprises a seat frame and an intermediate linkage component, the backrest connecting member comprises a first connecting member, a second connecting member and a third connecting member, the backrest assembly comprises a backrest plate, a backrest fixing plate, a backrest intermediate rod, a backrest first connecting rod, a backrest connecting rod assembly and a backrest connecting assembly. The two ends of the second connecting member are rotatably connected with the first connecting member and the intermediate linkage member respectively, and the intermediate linkage member drives the first connecting member, the second connecting member and the third connecting member to move, which can drive the backrest assembly to move relative to the wall; when the third connecting member rotates to the extreme position, the back middle rod and the back first connecting rod continue to move with the intermediate linkage member. At this time, the back connection assembly can control the relative distance between the back middle rod and the back connecting rod assembly, and the back first connecting rod can drive the backrest plate to rotate significantly, and can realize the significant rotation of the backrest plate after being translated away from the wall, which can not only realize the large-angle rotation of the backrest assembly, but also will not interfere with the wall, thereby improving space utilization and comfort.

[0015] According to some embodiments of the present application, the backrest connecting rod assembly includes a backrest second connecting rod and a backrest third connecting rod, and the two ends of the backrest second connecting rod are respectively rotatably connected to the backrest leaning plate and the backrest third connecting rod, and the two ends of the backrest third connecting rod are respectively rotatably connected to the backrest fixing plate and the backrest second connecting rod.

[0016] According to some embodiments of the present application, the backrest connection assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are respectively arranged on both sides of the backrest middle rod, the two ends of the first connecting rod are respectively rotatably connected to the backrest middle rod and the backrest third connecting rod, one end of the second connecting rod is rotatably connected to the backrest middle rod, and the other end of the second connecting rod is rotatably connected to the backrest second connecting rod and the backrest third connecting rod.

[0017] According to some embodiments of the present application, a avoidance portion protruding outward is provided in the middle portion of the first connecting rod, and the avoidance portion is used to avoid the movement of the back against the first connecting rod.

[0018] According to some embodiments of the present application, an accommodating portion is provided at the upper end of the back-rest fixing plate, the accommodating portion is recessed downward, and the accommodating portion is used to avoid the second connecting rod.

[0019] According to some embodiments of the present application, a limiting component is further included, and the limiting component includes a first limiting component, a second limiting component and a third limiting assembly, the first limiting component is arranged on the fixed frame, and the first limiting component is used to limit the movement of the first connecting rod; the second limiting component is arranged on the second connecting member, and the second limiting component is used to limit the movement of the third connecting member; the third limiting assembly is arranged on the fixed frame, and the third limiting assembly is used to limit the movement of the intermediate linkage component.

[0020] According to some embodiments of the present application, the intermediate linkage component includes a first linkage component for linking the backrest mechanism and the fixed frame, the first linkage component includes a first linkage rod, a second linkage rod and an intermediate linkage rod, the two ends of the first linkage rod are respectively rotatably connected to the fixed frame and the intermediate linkage rod, the two ends of the second linkage rod are respectively rotatably connected to the fixed frame and the intermediate linkage rod, and the second connecting member is rotatably connected to the first linkage rod.

[0021] According to some embodiments of the present application, the intermediate linkage component also includes a second linkage component, which is used to link the first linkage component and the seat frame, and the second linkage component includes a linkage plate, a first connecting component and a second connecting component, the two ends of the first connecting component are respectively rotatably connected to the linkage plate and the first linkage component, and the two ends of the second connecting component are respectively rotatably connected to the linkage plate and the seat frame.

[0022] According to some embodiments of the present application, the footrest mechanism includes a footrest supporting portion, a footrest swing assembly and a push rod, the footrest swing assembly is used to connect the footrest supporting portion and the seat frame, the push rod is arranged on the footrest swing assembly, and the push rod is connected to the driving component.

[0023] The sofa of the second embodiment of the present application includes the zero-wall-supporting functional iron frame of the first embodiment mentioned above.

[0024] The sofa according to the embodiment of the second aspect of the present application has at least the following beneficial effects: the sofa of the present application comprises an iron frame with zero-wall-leaning function, the iron frame with zero-wall-leaning function comprises a fixing frame, a backrest mechanism, a linkage mechanism, a footrest mechanism and a driving component, the backrest mechanism comprises a backrest assembly and a backrest connecting member, the linkage mechanism comprises a seat frame and an intermediate linkage component, the backrest connecting member comprises a first connecting member, a second connecting member and a third connecting member, the backrest assembly comprises a backrest plate, a backrest fixing plate, a backrest intermediate rod, a backrest first connecting rod, a backrest connecting rod assembly and a backrest connecting assembly. The two ends of the second connecting member are rotatably connected with the first connecting member and the intermediate linkage member respectively, and the intermediate linkage member drives the first connecting member, the second connecting member and the third connecting member to move, which can drive the backrest assembly to move relative to the wall; when the third connecting member rotates to the extreme position, the back middle rod and the back first connecting rod continue to move with the intermediate linkage member. At this time, the back connection assembly can control the relative distance between the back middle rod and the back connecting rod assembly, and the back first connecting rod can drive the backrest plate to rotate significantly, and can realize the significant rotation of the backrest plate after being translated away from the wall, which can not only realize the large-angle rotation of the backrest assembly, but also will not interfere with the wall, thereby improving space utilization and comfort.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 This is a structural schematic diagram of a backrest mechanism of a zero-wall-leaning iron frame according to an embodiment of the present application when the backrest mechanism is in a sitting position;

[0028] Figure 2 yes Figure 1 A schematic structural diagram of the zero-wall functional iron frame from another angle shown;

[0029] Figure 3 This is a schematic structural diagram of a backrest connecting member driving a backrest assembly to translate according to an embodiment of the present application;

[0030] Figure 4 yes Figure 3 A schematic structural diagram of the zero-wall functional iron frame from another angle shown;

[0031] Figure 5This is a schematic structural diagram of a backrest connecting member driving a backrest assembly to rotate according to an embodiment of the present application;

[0032] Figure 6 yes Figure 5 A schematic structural diagram of the zero-wall functional iron frame from another angle shown;

[0033] Figure 7 This is a structural schematic diagram of a backrest mechanism of a zero-wall-leaning iron frame according to an embodiment of the present application when the backrest mechanism is in a lying position;

[0034] Figure 8 yes Figure 7 A schematic structural diagram of the zero-wall functional iron frame from another angle shown;

[0035] Fig. 9 yes Figure 4 An enlarged schematic diagram of point A is shown.

[0036] Reference numerals:

[0037] Fixed frame 100, side plate 110, bottom bar 120;

[0038] A first connecting member 211, a second connecting member 212, and a third connecting member 213;

[0039] A backrest plate 310, a backrest fixing plate 320, a receiving portion 321, a backrest first connecting rod 331, a backrest second connecting rod 332, a backrest third connecting rod 333, a first connecting rod 341, a second connecting rod 342, and an avoidance portion 343;

[0040] A first limiting member 411, a second limiting member 412, and a third limiting assembly 413;

[0041] The seat frame 510, the first linkage rod 521, the second linkage rod 522, the intermediate linkage rod 523, the linkage plate 531, the first connecting assembly 532, and the second connecting assembly 533;

[0042] The footrest support part 610 , the footrest swing assembly 620 , the top rod 630 , and the driving component 640 . DETAILED DESCRIPTION

[0043] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0045] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, assembling, and matching should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0047] Refer to the following Figures 1 to 9 The invention describes a zero-wall-supported iron frame according to an embodiment of the present application.

[0048] The zero-wall function iron frame of the embodiment of the present application refers to Figures 1 to 9, including a fixing frame 100, a backrest mechanism, a linkage mechanism, a footrest mechanism and a driving component 640, the backrest mechanism includes a backrest assembly and a backrest connecting member, the backrest assembly is rotatably connected to the fixing frame 100 through the backrest connecting member, the linkage mechanism includes a seat frame 510 and an intermediate linkage member, the intermediate linkage member is rotatably connected to the seat frame 510 and the fixing frame 100, the footrest mechanism can be rotatably installed on the seat frame 510, the driving component 640 is arranged between the fixing frame 100 and the footrest mechanism, the driving component 640 drives the footrest mechanism to extend outward, the footrest mechanism drives the seat frame 510 to move, the seat frame 510 drives the intermediate linkage member to move, the intermediate linkage member drives the backrest assembly to move through the backrest connecting member, so as to realize a large-angle rotation of the backrest assembly, and the seat posture can be adjusted by coordinating the movement of the seat frame 510 and the footrest mechanism. Specifically, the backrest connecting member includes a first connecting member 211, a second connecting member 212 and a third connecting member 213, and the backrest assembly includes a backrest leaning plate 310, a backrest fixing plate 320, a backrest intermediate rod 350, a backrest first connecting rod 331, a backrest connecting rod assembly and a backrest connecting assembly. The first connecting member 211 is rotatably connected to the fixing frame 100, and the two ends of the second connecting member 212 are respectively rotatably connected to the first connecting member 211 and the intermediate linkage component. One end of the third connecting member 213 is rotatably connected to the second connecting member 212, and the third connecting member 21 The other end of 3 is rotatably connected to the back intermediate rod 350, the middle part of the back intermediate rod 350 is hinged on the back fixing plate 320, and the two ends of the back intermediate rod 350 are respectively rotatably connected to the third connecting member 213 and the back first connecting rod 331; the two ends of the back first connecting rod 331 are respectively rotatably connected to the back intermediate rod 350 and the back leaning plate 310, the two ends of the back connecting rod assembly are respectively rotatably connected to the back leaning plate 310 and the back fixing plate 320, and the two ends of the back connecting assembly are respectively rotatably connected to the back intermediate rod 350 and the back connecting rod assembly. The two ends of the second connecting member 212 are rotatably connected to the first connecting member 211 and the intermediate linkage member respectively. The intermediate linkage member drives the first connecting member 211, the second connecting member 212 and the third connecting member 213 to move, and can drive the backrest assembly to move relative to the wall; when the third connecting member 213 rotates to the extreme position, the backrest intermediate rod 350 and the backrest first connecting rod 331 continue to move with the intermediate linkage member. At this time, the backrest connection assembly can control the relative distance between the backrest intermediate rod 350 and the backrest connecting rod assembly, and the backrest first connecting rod 331 can drive the backrest plate 310 to rotate significantly, and can realize the significant rotation of the backrest plate 310 after translating away from the wall, which can realize the large-angle rotation of the backrest assembly without interfering with the wall, thereby improving space utilization and comfort.

[0049] The following is a specific example to introduce the overall posture adjustment process of the zero-wall function iron frame of the present application:

[0050] When the zero-wall function iron frame is in a sitting position, Figure 1 and Figure 2 As shown, at this time, the backrest plate 310 of the backrest assembly is in a vertical placement state, supporting the back of the human body in the vertical direction. When the zero-wall-supporting functional iron frame switches from a sitting state to a lying state, the driving component 640 drives the footrest mechanism to extend outward, the footrest mechanism drives the seat frame 510 to move, the seat frame 510 drives the intermediate linkage component to move, the intermediate linkage component drives the backrest fixing plate 320 and the second connecting member 212 to move toward the side away from the wall, at this time, the third connecting member 213 drives the backrest intermediate rod 350 to rotate, the backrest intermediate rod 350 rotates relative to the backrest fixing plate 320, and can push the backrest connecting rod assembly and the backrest plate 310 to move a certain distance toward the side away from the wall through the backrest connecting assembly, as shown in FIG. Figure 3 and Figure 4 When the third connecting member 213 rotates downward to the limit stroke, the third connecting member 213 stops rotating downward, and the backrest intermediate rod 350 rotates relative to the third connecting member 213 and the backrest fixing plate 320. The end of the backrest intermediate rod 350 connected to the backrest first connecting rod 331 drives the backrest first connecting rod 331 to move. Due to the action of the backrest connecting assembly, the backrest plate 310 will rotate at a large angle under the action of the backrest first connecting rod 331, as shown in FIG. Figure 5 and Figure 6 Finally, the backrest board 310 is rotated to a horizontal position to support the back of the human body in the horizontal direction, completing the posture adjustment of the zero-wall-supporting iron frame, so that the zero-wall-supporting iron frame is converted into a lying position, as shown in FIG. Figure 7 and Figure 8 shown.

[0051] According to some embodiments of the present application, the backrest link assembly includes a backrest second link 332 and a backrest third link 333, and the two ends of the backrest second link 332 are rotatably connected to the backrest plate 310 and the backrest third link 333, respectively, and the two ends of the backrest third link 333 are rotatably connected to the backrest fixed plate 320 and the backrest second link 332. The backrest link assembly is used to connect the backrest plate 310 and the backrest fixed plate 320, and the backrest link assembly includes a backrest second link 332 and a backrest third link 333, and the two ends of the backrest second link 332 are rotatably connected to the backrest plate 310 and the backrest fixed plate 320, respectively. The backrest plate 310 and the backrest fixed plate 320 are connected by two rotatably connected backrest second links 332 and backrest third links 333, so that the rotation angle of the backrest plate 310 relative to the backrest fixed plate 320 can be larger.

[0052] According to some embodiments of the present application, the back-rest connection assembly includes a first connecting rod 341 and a second connecting rod 342, and the first connecting rod 341 and the second connecting rod 342 are respectively arranged on both sides of the back-rest middle rod 350, and the two ends of the first connecting rod 341 are respectively rotatably connected to the back-rest middle rod 350 and the back-rest third connecting rod 333, one end of the second connecting rod 342 is rotatably connected to the back-rest middle rod 350, and the other end of the second connecting rod 342 is rotatably connected to the back-rest second connecting rod 332 and the back-rest third connecting rod 333. The backrest connection assembly includes a first connecting rod 341 and a second connecting rod 342. The backrest connection assembly is used to connect the backrest intermediate rod 350 and the backrest connecting rod assembly. Specifically, the first connecting rod 341 is used to connect the backrest intermediate rod 350 and the backrest third connecting rod 333. One end of the second connecting rod 342 is rotatably connected to the backrest intermediate rod 350, and the other end of the second connecting rod 342 is arranged at the rotation connection between the backrest second connecting rod 332 and the backrest third connecting rod 333. The backrest second connecting rod 332 and the backrest third connecting rod 333 are rotatably connected to the second connecting rod 342. When the second connecting rod 342 drives the backrest connecting rod assembly to move, the second connecting rod 342 can also drive the backrest second connecting rod 332 to move relative to the backrest third connecting rod 333. Through the relative movement of the backrest second connecting rod 332 and the backrest third connecting rod 333, the backrest plate 310 can have a larger rotation adjustment range to ensure the posture adjustment effect.

[0053] like Fig. 9 As shown, according to some embodiments of the present application, the middle part of the first connecting rod 341 is provided with an outwardly protruding avoidance portion 343, and the avoidance portion 343 is used to avoid the movement of the back-to-back first connecting rod 331. The first connecting rod 341 and the second connecting rod 342 are respectively arranged on both sides of the back-to-back middle rod 350, and the middle part of the first connecting rod 341 is provided with an avoidance portion 343, and the avoidance portion 343 is protruding outward. When the posture state is adjusted, the avoidance portion 343 can avoid the movement of the back-to-back first connecting rod 331, and the back-to-back first connecting rod 331 can pass through the middle part of the first connecting rod 341, avoiding the interference between the back-to-back first connecting rod 331 and the first connecting rod 341, thereby ensuring the smoothness of the posture adjustment process.

[0054] like Fig. 9As shown, according to some embodiments of the present application, a receiving portion 321 is provided at the upper end of the backrest fixing plate 320, and the receiving portion 321 is recessed downward, and the receiving portion 321 is used to avoid the second connecting rod 342. The backrest fixing plate 320 is provided with a receiving portion 321, and the first connecting rod 341 and the second connecting rod 342 are respectively arranged on both sides of the backrest middle rod 350. Specifically, the second connecting rod 342 is arranged on the inner side of the backrest middle rod 350. When the zero-wall functional iron frame switches from a sitting state to a lying state, the second connecting rod 342 moves under the drive of the backrest middle rod 350, and the second connecting rod 342 rotates to the top of the backrest fixing plate 320. The receiving portion 321 of the backrest fixing plate 320 is recessed downward, which can accommodate the second connecting rod 342 and avoid interference with the second connecting rod 342.

[0055] According to some embodiments of the present application, a limiting component is further included, and the limiting component includes a first limiting component 411, a second limiting component 412, and a third limiting component 413. The first limiting component 411 is set on the fixing frame 100, and the first limiting component 411 is used to limit the movement of the first connecting rod; the second limiting component 412 is set on the second connecting member 212, and the second limiting component 412 is used to limit the movement of the third connecting member 213; the third limiting component 413 is set on the fixing frame 100, and the third limiting component 413 is used to limit the movement of the intermediate linkage component. The limiting component is used to control the movement stroke of each rod, and specifically, the limiting component includes a first limiting component 411, a second limiting component 412, and a third limiting component 413.

[0056] A first limiting member 411 is provided on the side of the fixing frame 100 away from the foot support mechanism. The first connecting member 211 is rotatably connected to the fixing frame 100. The first limiting member 411 limits the rotation of the first connecting member 211. The rotation of the first connecting member 211 is limited, and the third connecting member 213, the backrest assembly, the second connecting member 212, the intermediate linkage member and other linkage mechanisms and components connected to the first connecting member 211 can be limited at the same time, thereby realizing the limitation of the overall posture of the functional iron frame.

[0057] The second limit member 412 is arranged on the second connecting rod 342, one end of the third connecting member 213 is rotatably connected to the second connecting member 212, and the other end of the third connecting member 213 is rotatably connected to the backrest assembly. Specifically, the third connecting member 213 is hingedly mounted on the second connecting member 212. When the driving component 640 drives the functional iron frame to switch to the lying position, the third connecting member 213 is pulled to rotate downward, and the backrest assembly is pulled and rotated toward the side where the footrest mechanism is located. The second limit member 412 arranged on the second connecting member 212 can limit the continued rotation of the third connecting member 213 to the downward side, so that the backrest assembly stops rotating after switching from the sitting position to the lying position.

[0058] The third limiting component 413 is arranged on the fixed frame 100, and the third limiting component 413 is used to limit the movement of the intermediate linkage component. Specifically, the intermediate linkage component has a plurality of linkage rods, and the third limiting component 413 includes a plurality of limiting columns. The intermediate linkage component drives the backrest component to move through the backrest connector. The third limiting component 413 limits the intermediate linkage component and controls the movement stroke of the intermediate linkage component, thereby realizing the limitation of the overall posture of the functional iron frame.

[0059] It should be noted that, in some embodiments, the first limiting member 411, the second limiting member 412 and the third limiting assembly 413 are configured as limiting columns protruding from the inner side of the fixing frame 100, and the limiting columns abut against the first connecting member 211 to achieve the limitation of the first connecting member 211.

[0060] It can be understood that, in some embodiments, by controlling the stroke of the driving component 640, the stroke of the first connecting member 211, the third connecting member 213 and the intermediate linkage component can also be limited. At this time, the first limiting member 411 is set to limit the rotation of the first connecting member 211, the third connecting member 213 and the intermediate linkage component, and the stroke control of the driving component 640 is coordinated to enhance the limiting effect of the first connecting member 211, the third connecting member 213 and the intermediate linkage component through double limiting.

[0061] According to some embodiments of the present application, the intermediate linkage component includes a first linkage assembly for linking the backrest mechanism and the fixed frame 100, the first linkage assembly includes a first linkage rod 521, a second linkage rod 522 and an intermediate linkage rod 523, the two ends of the first linkage rod 521 are respectively rotatably connected to the fixed frame 100 and the intermediate linkage rod 523, the two ends of the second linkage rod 522 are respectively rotatably connected to the fixed frame 100 and the intermediate linkage rod 523, and the second connecting member 212 is rotatably connected to the first linkage rod 521. The driving component 640 drives the seat frame 510 to move, the seat frame 510 drives the intermediate linkage component to move, and the intermediate linkage component drives the backrest mechanism to move through the first linkage assembly. Specifically, the second connecting member 212 is rotatably connected to the first linkage rod 521, the intermediate linkage component drives the second connecting member 212 to move, the second connecting member 212 drives the first connecting member 211 and the third connecting member 213 to move, and the backrest assembly is pulled by the third connecting member 213 to translate and rotate toward the side where the footrest mechanism is located.

[0062] According to some embodiments of the present application, the intermediate linkage component further includes a second linkage component, the second linkage component is used to link the first linkage component and the seat frame 510, the second linkage component includes a linkage plate 531, a first connection component 532 and a second connection component 533, the two ends of the first connection component 532 are respectively rotatably connected to the linkage plate 531 and the first linkage component, and the two ends of the second connection component 533 are respectively rotatably connected to the linkage plate 531 and the seat frame 510. The driving component 640 drives the seat frame 510 to move, and the seat frame 510 drives the intermediate linkage component to move, the intermediate linkage component links the first linkage component and the seat frame 510 through the second linkage component, and drives the backrest mechanism to move through the first linkage component. Specifically, the second linkage component includes a linkage plate 531, a first connection component 532 and a second connection component 533, the two ends of the first connection component 532 are respectively rotatably connected to the linkage plate 531 and the first linkage component, and the two ends of the second connection component 533 are respectively rotatably connected to the linkage plate 531 and the seat frame 510.

[0063] According to some embodiments of the present application, the footrest mechanism includes a footrest support portion 610, a footrest swing assembly 620 and a push rod 630. The footrest swing assembly 620 is used to connect the footrest support portion 610 and the seat frame 510. The push rod 630 is arranged on the footrest swing assembly 620, and the push rod 630 is connected to the driving component 640. The footrest mechanism includes the footrest support portion 610, the footrest swing assembly 620 and the push rod 630. The footrest swing assembly 620 can drive the footrest support portion 610 to flip, and flip the footrest support portion 610 from the bottom of the seat frame 510 to the outside of the seat frame 510. The push rod 630 is arranged on the footrest swing assembly 620, and the push rod 630 is connected to the driving component 640. The other end of the driving component 640 is arranged on the fixing frame 100. The driving component 640 drives the footrest mechanism to move relative to the fixing frame 100 to realize the flipping of the footrest mechanism.

[0064] According to some embodiments of the present application, the fixing frame 100 includes two side panels 110 and a bottom rod 120 disposed between the two side panels 110, and the bottom rod 120 is connected to the driving component 640. The fixing frame 100 is used to support the functional iron frame, and the fixing frame 100 includes the side panels 110 and the bottom rod 120, and the side panels 110 are disposed on both sides of the bottom rod 120. One end of the driving component 640 is disposed on the bottom rod 120 of the fixing frame 100, and the other end of the driving component 640 is connected to the foot support mechanism, and the foot support mechanism is driven to move relative to the fixing frame 100.

[0065] The sofa of the embodiment of the present application includes a zero-wall-leaning functional iron frame, which includes a fixed frame 100, a backrest mechanism, a linkage mechanism, a footrest mechanism and a driving component 640. The backrest mechanism includes a backrest assembly and a backrest connecting member. The linkage mechanism includes a seat frame 510 and an intermediate linkage component. The backrest connecting member includes a first connecting member 211, a second connecting member 212 and a third connecting member 213. The backrest assembly includes a backrest plate 310, a backrest fixing plate 320, a backrest intermediate rod 350, a backrest first connecting rod 331, a backrest connecting rod assembly and a backrest connecting assembly. The two ends of the second connecting member 212 are rotatably connected to the first connecting member 211 and the intermediate linkage member respectively. The intermediate linkage member drives the first connecting member 211, the second connecting member 212 and the third connecting member 213 to move, and can drive the backrest assembly to move relative to the wall; when the third connecting member 213 rotates to the extreme position, the backrest intermediate rod 350 and the backrest first connecting rod 331 continue to move with the intermediate linkage member. At this time, the backrest connection assembly can control the relative distance between the backrest intermediate rod 350 and the backrest connecting rod assembly, and the backrest first connecting rod 331 can drive the backrest plate 310 to rotate significantly, and can realize the significant rotation of the backrest plate 310 after translating away from the wall, which can realize the large-angle rotation of the backrest assembly without interfering with the wall, thereby improving space utilization and comfort.

[0066] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present application.

Claims

1. Zero-wall functional iron frame, characterized by: include: Fixed frame; A backrest mechanism, the backrest mechanism comprising a backrest assembly and a backrest connecting member, the backrest assembly being rotatably connected to the fixing frame via the backrest connecting member; A linkage mechanism, the linkage mechanism comprising a seat frame and an intermediate linkage component, the intermediate linkage component being rotatably connected to the seat frame and the fixing frame; A foot support mechanism, the foot support mechanism being rotatably mounted on the seat frame; A driving component, the driving component is arranged between the fixing frame and the foot support mechanism; Wherein, the backrest connecting member includes a first connecting member, a second connecting member and a third connecting member, and the backrest assembly includes a backrest leaning plate, a backrest fixing plate, a backrest intermediate rod, a backrest first connecting rod, a backrest connecting rod assembly and a backrest connecting assembly; The first connecting member is rotatably connected to the fixing frame, two ends of the second connecting member are rotatably connected to the first connecting member and the intermediate linkage member respectively, one end of the third connecting member is rotatably connected to the second connecting member, and the other end of the third connecting member is rotatably connected to the back-supporting intermediate rod; The middle part of the backrest intermediate rod is hinged on the backrest fixed plate, and the two ends of the backrest intermediate rod are rotatably connected to the third connecting member and the backrest first connecting rod respectively; the two ends of the backrest first connecting rod are rotatably connected to the backrest intermediate rod and the backrest leaning plate respectively; the two ends of the backrest connecting rod assembly are rotatably connected to the backrest leaning plate and the backrest fixed plate respectively; the two ends of the backrest connecting rod assembly are rotatably connected to the backrest intermediate rod and the backrest connecting rod assembly respectively.

2. The zero-wall functional iron frame according to claim 1, characterized in that: The backrest connecting rod assembly includes a backrest second connecting rod and a backrest third connecting rod, the two ends of the backrest second connecting rod are respectively rotatably connected to the backrest leaning plate and the backrest third connecting rod, and the two ends of the backrest third connecting rod are respectively rotatably connected to the backrest fixing plate and the backrest second connecting rod.

3. The zero-wall functional iron frame according to claim 2 is characterized in that: The backrest connection assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are respectively arranged on both sides of the backrest middle rod, the two ends of the first connecting rod are respectively rotatably connected to the backrest middle rod and the backrest third connecting rod, one end of the second connecting rod is rotatably connected to the backrest middle rod, and the other end of the second connecting rod is rotatably connected to the backrest second connecting rod and the backrest third connecting rod.

4. The zero-wall functional iron frame according to claim 3 is characterized in that: A avoiding portion protruding outward is provided in the middle of the first connecting rod, and the avoiding portion is used to avoid the movement of the back-supporting first connecting rod.

5. The zero-wall functional iron frame according to claim 3 is characterized in that: An accommodating portion is arranged at the upper end of the backrest fixing plate, and the accommodating portion is recessed downwards and is used to avoid the second connecting rod.

6. The zero-wall functional iron frame according to claim 1, characterized in that: It also includes a limiting component, which includes a first limiting component, a second limiting component and a third limiting assembly. The first limiting component is arranged on the fixed frame, and the first limiting component is used to limit the movement of the first connecting rod; the second limiting component is arranged on the second connecting member, and the second limiting component is used to limit the movement of the third connecting member; the third limiting assembly is arranged on the fixed frame, and the third limiting assembly is used to limit the movement of the intermediate linkage component.

7. The zero-wall functional iron frame according to claim 1, characterized in that: The intermediate linkage component includes a first linkage assembly for linking the backrest mechanism and the fixed frame, the first linkage assembly includes a first linkage rod, a second linkage rod and an intermediate linkage rod, the two ends of the first linkage rod are respectively rotatably connected to the fixed frame and the intermediate linkage rod, the two ends of the second linkage rod are respectively rotatably connected to the fixed frame and the intermediate linkage rod, and the second connecting member is rotatably connected to the first linkage rod.

8. The zero-wall functional iron frame according to claim 7, characterized in that: The intermediate linkage component also includes a second linkage component, which is used to link the first linkage component and the seat frame. The second linkage component includes a linkage plate, a first connecting component and a second connecting component. The two ends of the first connecting component are respectively rotatably connected to the linkage plate and the first linkage component, and the two ends of the second connecting component are respectively rotatably connected to the linkage plate and the seat frame.

9. The zero-wall functional iron frame according to claim 1, characterized in that: The footrest mechanism includes a footrest supporting portion, a footrest swinging assembly and a push rod. The footrest swinging assembly is used to connect the footrest supporting portion and the seat frame. The push rod is arranged on the footrest swinging assembly, and the push rod is connected to the driving component.

10. A sofa, characterized in that It comprises the zero-wall functional iron frame as described in any one of claims 1 to 9.

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