Large-angle zero-wall-leaning functional iron stand and sofa

Abstract

The utility model discloses a wide-angle zero-wall functional iron stand and a sofa, the wide-angle zero-wall functional iron stand comprises a fixing frame, a backrest mechanism, a linkage mechanism, a foot support mechanism and a driving part, the backrest mechanism comprises a backrest assembly and a backrest connecting piece, the linkage mechanism comprises a seat frame and a middle linkage part, 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 first connecting piece is in linkage with the middle linkage part through the second connecting piece, the first connecting piece is in linkage with the backrest assembly through the third connecting piece, and the functional iron frame can drive the backrest assembly to horizontally move and rotate through the second connecting piece, the third connecting piece and the middle linkage part. Large-angle rotation of the backrest assembly can be achieved only by small-angle swing of the first connecting piece, the backrest assembly cannot interfere with a wall, and the space utilization rate and comfort are improved.

Description

Technical Field

[0001] The present application relates to the technical field of household products, and particularly relates to a functional iron frame and a sofa with a large-angle zero-wall-adjacent feature. Background Art

[0002] Existing sofas generally include a fixed frame, a seat frame, a backrest, and a footrest. When a driving component drives the footrest and the seat frame to move, the backrest will be driven to rotate to adjust the posture of the sofa. In related technologies, the backrest is directly rotatably connected to the fixed frame through a connecting component. The fixed frame is fixed relative to the wall. The rotation angle and amplitude of the connecting component are closely related to the translation and rotation of the backrest. If the rotation angle of the connecting component is too large, the backrest is likely to rotate outside the sofa and collide with the wall; if the rotation angle of the connecting component is too small, the adjustment angle of the backrest is small, and the posture of the sofa cannot be fully adjusted, reducing the space utilization rate and user experience of the sofa. Summary of the Utility Model

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present application provides a functional iron frame with a large-angle zero-wall-adjacent feature that can achieve large-angle rotation of the backrest without interference with the wall.

[0004] The present application also provides a sofa using the above functional iron frame.

[0005] A functional iron frame with a large-angle zero-wall-adjacent feature according to an embodiment of the present application includes:

[0006] A fixed frame;

[0007] A backrest mechanism, the backrest mechanism includes a backrest component and a backrest connecting component;

[0008] A linkage mechanism, the linkage mechanism includes a seat frame and an intermediate linkage component, the intermediate linkage component is rotatably connected to the seat frame and the fixed frame;

[0009] A footrest mechanism, the footrest mechanism is rotatably installed on the seat frame;

[0010] A driving component, the driving component is arranged between the fixed frame and the footrest mechanism;

[0011] Wherein, the backrest connecting component includes a first connecting component, a second connecting component, and a third connecting component. The first connecting component is rotatably connected to the fixed frame. Two ends of the second connecting component are respectively rotatably connected to the first connecting component and the intermediate linkage component. One end of the third connecting component is rotatably connected to the second connecting component, and the other end of the third connecting component is rotatably connected to the backrest component.

[0012] A functional iron rack with a large angle and zero-wall contact according to an embodiment of the first aspect of the present application has at least the following beneficial effects: The functional iron rack with a large angle and zero-wall contact of the present application includes a fixed rack, a backrest mechanism, a linkage mechanism, a footrest mechanism, and a driving component. The backrest mechanism includes a backrest component and a backrest connecting piece. The linkage mechanism includes a seat frame and an intermediate linkage component. The backrest connecting piece includes a first connecting piece, a second connecting piece, and a third connecting piece. The first connecting piece is linked to the intermediate linkage component through the second connecting piece, and the first connecting piece is linked to the backrest component through the third connecting piece. The functional iron rack can drive the backrest component to translate and rotate through the second connecting piece, the third connecting piece, and the intermediate linkage component. The first connecting piece only needs to swing at a small angle to achieve a large angle rotation of the backrest component, and the backrest component will not interfere with the wall, improving the space utilization rate and comfort.

[0013] According to some embodiments of the present application, the fixed rack is provided with a first limiting member, and the first limiting member is used to limit the movement of the first connecting piece.

[0014] According to some embodiments of the present application, the backrest component includes a backrest fixing plate, a backrest intermediate rod, a backrest swing rod, and a backrest connecting rod. The middle part of the backrest intermediate rod is hinged to the backrest fixing plate, and both ends of the backrest intermediate rod are respectively rotationally connected to the third connecting piece and the backrest swing rod. Both ends of the backrest connecting rod are respectively rotationally connected to the backrest swing rod and the backrest fixing plate.

[0015] According to some embodiments of the present application, the backrest connecting rod is provided with a second limiting member, and the second limiting member is used to limit the movement of the backrest swing rod.

[0016] 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 rack. The first linkage assembly includes a first connecting rod, a second connecting rod, and an intermediate connecting rod. Both ends of the first connecting rod are respectively rotationally connected to the fixed rack and the intermediate connecting rod. Both ends of the second connecting rod are respectively rotationally connected to the fixed rack and the second connecting rod. The second connecting piece is rotationally connected to the first connecting rod.

[0017] According to some embodiments of the present application, the intermediate linkage component further includes a second linkage assembly, and the second linkage assembly is used to link the first linkage component and the seat frame. The second linkage assembly includes a linkage plate, a first connection assembly, and a second connection assembly. Both ends of the first connection assembly are respectively rotationally connected to the linkage plate and the first linkage component. Both ends of the second connection assembly are respectively rotationally connected to the linkage plate and the seat frame.

[0018] According to some embodiments of the present application, the fixing frame is provided with a third limiting member, and the third limiting member is used to limit the movement of the first connecting rod.

[0019] According to some embodiments of the present application, the footrest mechanism includes a footrest support portion, a footrest swing assembly, and a top rod. The footrest swing assembly is used to connect the footrest support portion and the seat frame. The top rod is disposed on the footrest swing assembly, and the top rod is connected to the driving component.

[0020] According to some embodiments of the present application, a fourth limiting member is disposed on the second connecting member, and the fourth limiting member is used to limit the movement of the third connecting member.

[0021] The sofa according to the second aspect embodiment of the present application includes a functional iron frame with a large-angle zero-wall contact as described in the first aspect embodiment above.

[0022] The sofa according to the second aspect embodiment of the present application has at least the following beneficial effects: The sofa of the present application includes a functional iron frame with a large-angle zero-wall contact, including a fixing frame, a backrest mechanism, a linkage mechanism, a footrest mechanism, and a driving component. The backrest mechanism includes a backrest assembly and a backrest connecting member. The linkage mechanism includes a seat frame and an intermediate linkage member. The backrest connecting member includes a first connecting member, a second connecting member, and a third connecting member. The first connecting member is linked to the intermediate linkage member through the second connecting member. The functional iron frame can drive the backrest assembly to translate and rotate through the second connecting member, the third connecting member, and the intermediate linkage member. The first connecting member only needs to swing at a small angle to achieve a large-angle rotation of the backrest assembly, and the backrest assembly will not interfere with the wall, improving the space utilization rate and comfort.

[0023] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0025] Figure 1 is a schematic structural diagram of the backrest mechanism of a functional iron frame with a large-angle zero-wall contact in a sitting position according to an embodiment of the present application;

[0026] Figure 2 is Figure 1 a schematic structural diagram of another angle of a functional iron frame with a large-angle zero-wall contact shown;

[0027] Figure 3 is a schematic structural diagram of the backrest mechanism of a functional iron frame with a large-angle zero-wall contact switching postures according to an embodiment of the present application;

[0028] Figure 4 is Figure 3 A schematic structural view of another angle of a functional iron rack with a large angle and zero wall contact as shown;

[0029] Figure 5 is a schematic structural view of the backrest mechanism of a functional iron rack with a large angle and zero wall contact in a lying position according to an embodiment of the present application;

[0030] Figure 6 is Figure 5 A schematic structural view of another angle of a functional iron rack with a large angle and zero wall contact as shown.

[0031] Reference numerals:

[0032] The first connecting member 110, the first limiting member 111, the second connecting member 120, the fourth limiting member 121, and the third connecting member 130;

[0033] The backrest fixing plate 210, the backrest intermediate rod 220, the backrest swing rod 230, the leaning portion 231, the backrest connecting rod 240, the second limiting member 241;

[0034] The first connecting rod 310, the second connecting rod 320, the intermediate connecting rod 330, the third limiting member 311, the linkage plate 341, the first connecting assembly 342, the second connecting assembly 343, the driving member 350, the footrest support portion 351, the footrest swing assembly 352, the ejector rod 353;

[0035] The fixing frame 400, the side plate 410, the bottom rod 420;

[0036] The seat frame 500. Detailed implementation manners

[0037] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, inside, outside, etc., is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present application.

[0039] In the description of the present application, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceeding", etc. are understood not to include the present number, and "above", "below", "within", etc. are understood to include the present number. If the first and second are described only for the purpose of distinguishing technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0040] In the description of the present application, unless otherwise clearly defined, words such as "set", "installed", "connected", "assembled", "fitted", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present application in combination with the specific content of the technical solution.

[0041] The following refers to Figures 1 to 6 Describe a functional iron rack with a large angle and zero wall contact according to an embodiment of the present application.

[0042] A functional iron rack with a large angle and zero wall contact according to an embodiment of the present application, referring to Figures 1 to 6 , including a fixed frame 400, a backrest mechanism, a linkage mechanism, a footrest mechanism, and a driving component 350. The backrest mechanism includes a backrest assembly and a backrest connecting member. The linkage mechanism includes a seat frame 500 and an intermediate linkage member. The intermediate linkage member is rotatably connected to the seat frame 500 and the fixed frame 400. The footrest mechanism is rotatably installed on the seat frame 500. The driving component 350 is arranged between the fixed frame 400 and the footrest mechanism. The driving component 350 drives the footrest mechanism to move relative to the fixed frame 400. The footrest mechanism drives the seat frame 500 and the intermediate linkage member to move, and the intermediate linkage member drives the backrest mechanism to move, realizing the adjustment of the overall posture of the functional iron rack. Specifically, the backrest mechanism includes a backrest assembly and a backrest connecting member. The backrest connecting member includes a first connecting member 110, a second connecting member 120, and a third connecting member 130. The first connecting member 110 is rotatably connected to the fixed frame 400. The two ends of the second connecting member 120 are respectively rotatably connected to the first connecting member 110 and the intermediate linkage member. One end of the third connecting member 130 is rotatably connected to the second connecting member 120, and the other end of the third connecting member 130 is rotatably connected to the backrest assembly. The first connecting member 110 is linked to the intermediate linkage member through the second connecting member 120. The first connecting member 110 is linked to the third connecting member 130 through the second connecting member 120. The second connecting member 120 is linked to the backrest assembly through the third connecting member 130. The functional iron rack can drive the backrest assembly to translate and rotate through the second connecting member 120, the third connecting member 130, and the intermediate linkage member. The first connecting member 110 only needs to swing at a small angle to realize the large-angle rotation of the backrest assembly, and the backrest assembly will not interfere with the wall, improving the space utilization rate and comfort. Specifically, referring to Figure 1 , Figure 3 and Figure 5 , Figure 1It is a schematic structural view of the backrest assembly of the functional iron frame in a sitting position. Figure 3 It is a schematic structural view of the functional iron frame when switching from a sitting position to a lying position. Figure 5 It is a schematic structural view of the backrest assembly of the functional iron frame in a lying position. When the backrest assembly of the functional iron frame switches from a sitting position to a lying position, refer to Figures 1 to 6 , both ends of the second connecting member 120 are respectively rotationally connected to the first connecting member 110 and the intermediate linkage member. The intermediate linkage member drives the second connecting member 120 to move. The second connecting member 120 drives the first connecting member 110 and the third connecting member 130 to move. One end of the third connecting member 130 is rotationally connected to the second connecting member 120, and the other end of the third connecting member 130 is rotationally connected to the backrest assembly. The backrest assembly is translated and rotated toward the side where the footrest mechanism is located under the traction of the third connecting member 130. Without increasing the rotation angle of the first connecting member 110, through the settings of the second connecting member 120 and the third connecting member 130, the rotation angle of the backrest assembly under traction can be increased. The first connecting member 110 only needs to swing at a small angle to achieve a large-angle rotation of the backrest assembly, improving the space utilization rate and comfort. When the backrest assembly of the functional iron frame switches from a lying position to a sitting position, the first connecting member 110 is arranged on the side of the fixed frame 400 close to the wall. Since the large-angle rotation of the backrest assembly does not need to be adjusted by a large-angle rotation of the first connecting member 110, the backrest assembly can complete a large-angle rotation without interfering with the wall, thus ensuring the space utilization rate of the functional iron frame.

[0043] According to some embodiments of the present application, the fixed frame 400 is provided with a first limiting member 111, and the first limiting member 111 is used to limit the movement of the first connecting member 110. The backrest connecting member includes a first connecting member 110, a second connecting member 120, and a third connecting member 130. The first connecting member 110 is rotationally connected to the fixed frame 400. A first limiting member 111 is arranged on the side of the fixed frame 400 away from the footrest mechanism. The first limiting member 111 limits the rotation of the first connecting member 110. The rotation of the first connecting member 110 is restricted, and it can simultaneously limit the linkage mechanisms and components such as the third connecting member 130, the backrest assembly, the second connecting member 120, and the intermediate linkage member connected to the first connecting member 110, realizing the limitation of the overall posture of the functional iron frame. It should be noted that, in some embodiments, the first limiting member 111 is set as a limiting post protruding from the inner side of the fixed frame 400, and the first connecting member 110 is limited by abutting the limiting post. It can be understood that, in some embodiments, by controlling the stroke of the driving member 350, the stroke of the first connecting member 110 can also be limited. At this time, the first limiting member 111 is set to limit the rotation of the first connecting member 110, and in cooperation with the stroke control of the driving member 350, the limiting effect on the first connecting member 110 is strengthened through double limiting.

[0044] According to some embodiments of the present application, the backrest assembly includes a backrest fixing plate 210, a backrest intermediate rod 220, a backrest swing rod 230, and a backrest connecting rod 240. The middle part of the backrest intermediate rod 220 is hinged to the backrest fixing plate 210. The two ends of the backrest intermediate rod 220 are respectively rotatably connected to the third connecting member 130 and the backrest swing rod 230. The two ends of the backrest connecting rod 240 are respectively rotatably connected to the backrest swing rod 230 and the backrest fixing plate 210. The first connecting member 110 is linked to the backrest assembly through the third connecting member 130. The backrest assembly includes a backrest fixing plate 210, a backrest intermediate rod 220, a backrest swing rod 230, and a backrest connecting rod 240. In some embodiments, the backrest intermediate rod 220 is arranged in an L shape. The middle part of the backrest intermediate rod 220 is hinged to the backrest fixing plate 210. The two ends of the backrest intermediate rod 220 are respectively rotatably connected to the third connecting member 130 and the backrest swing rod 230. The backrest swing rod 230 is provided with a leaning portion 231 suitable for a human body to lean on. Refer to Figure 1 and Figure 2 , when the backrest assembly of the functional iron frame is set to a sitting position, the leaning portion 231 of the backrest swing rod 230 is arranged vertically; refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 , when the driving component 350 drives the functional iron frame to switch to a lying position, at this time the intermediate linkage component drives the second connecting member 120 to move. The second connecting member 120 drives the first connecting member 110 and the third connecting member 130 to move. The third connecting member 130 drives the backrest intermediate rod 220 to rotate around the backrest fixing plate 210. One end of the backrest intermediate rod 220 connected to the backrest swing rod 230 drives the backrest swing rod 230 to rotate downward, so that the leaning portion 231 of the backrest swing rod 230 rotates from a vertical setting to a horizontal setting, and the backrest assembly is switched from a sitting position to a lying position.

[0045] According to some embodiments of the present application, a second limiting member 241 is provided on the backrest connecting rod 240, and the second limiting member 241 is used to limit the movement of the backrest swing rod 230. The two ends of the backrest connecting rod 240 are respectively rotatably connected to the backrest swing rod 230 and the backrest fixing plate 210. When the driving member 350 drives the functional iron frame to switch to the lying position, the third connecting member 130 drives the backrest intermediate rod 220 to rotate around the backrest fixing plate 210. One end of the backrest intermediate rod 220 connected to the backrest swing rod 230 drives the backrest swing rod 230 to rotate downward. The second limiting member 241 of the backrest connecting rod 240 limits the downward rotation of the backrest swing rod 230, so that the backrest assembly stops rotating after switching from the sitting position to the lying position. It should be noted that, in some embodiments, the second limiting member 241 is set as a limiting post protruding from the backrest connecting rod 240, and the limiting effect is achieved by the limiting post abutting against the backrest swing rod 230. It can be understood that, in some embodiments, by controlling the stroke of the driving member 350, the stroke of the backrest swing rod 230 can also be limited. At this time, the second limiting member 241 is provided to limit the rotation of the backrest swing rod 230, and in cooperation with the stroke control of the driving member 350, the limiting effect on the backrest swing rod 230 is strengthened through double limiting.

[0046] According to some embodiments of the present application, the intermediate linkage member includes a first linkage assembly for linking the backrest mechanism and the fixed frame 400. The first linkage assembly includes a first connecting rod 310, a second connecting rod 320, and an intermediate connecting rod 330. The two ends of the first connecting rod 310 are respectively rotatably connected to the fixed frame 400 and the intermediate connecting rod 330. The two ends of the second connecting rod 320 are respectively rotatably connected to the fixed frame 400 and the second connecting rod 320. The second connecting member 120 is rotatably connected to the first connecting rod 310. The driving member 350 drives the seat frame 500 to move, the seat frame 500 drives the intermediate linkage member to move, and the intermediate linkage member drives the backrest mechanism to move through the first linkage assembly. Specifically, the second connecting member 120 is rotatably connected to the first connecting rod 310. The intermediate linkage member drives the second connecting member 120 to move, the second connecting member 120 drives the first connecting member 110 and the third connecting member 130 to move, and the backrest assembly translates and rotates toward the side where the footrest mechanism is located under the traction of the third connecting member 130.

[0047] According to some embodiments of the present application, the intermediate linkage member further includes a second linkage assembly for linking the first linkage member and the seat frame 500. The second linkage assembly includes a linkage plate 341, a first connection assembly 342, and a second connection assembly 343. The two ends of the first connection assembly 342 are respectively rotatably connected to the linkage plate 341 and the first linkage member, and the two ends of the second connection assembly 343 are respectively rotatably connected to the linkage plate 341 and the seat frame 500. The driving member 350 drives the seat frame 500 to move, the seat frame 500 drives the intermediate linkage member to move, the intermediate linkage member links the first linkage member and the seat frame 500 through the second linkage assembly, and drives the backrest mechanism through the first linkage assembly. Specifically, the second linkage assembly includes a linkage plate 341, a first connection assembly 342, and a second connection assembly 343. The two ends of the first connection assembly 342 are respectively rotatably connected to the linkage plate 341 and the first linkage member, and the two ends of the second connection assembly 343 are respectively rotatably connected to the linkage plate 341 and the seat frame 500.

[0048] According to some embodiments of the present application, the fixing frame 400 is provided with a third limiting member 311 for limiting the movement of the first connecting rod 310. The first linkage assembly includes a first connecting rod 310, a second connecting rod 320, and an intermediate connecting rod 330. The second connecting member 120 is rotatably connected to the first connecting rod 310. The intermediate linkage member drives the second connecting member 120 to move through the first connecting rod 310, drives the first connecting member 110 and the third connecting member 130 to move through the second connecting member 120. The fixing frame 400 is provided with a third limiting member 311 for limiting the first connecting rod 310. The third limiting member 311 is arranged on the side of the first connecting rod 310 facing the footrest mechanism. When the first connecting rod 310 rotates on the side where the footrest mechanism is located, the first connecting rod 310 drives the second connecting member 120 to move, the second connecting member 120 drives the first connecting member 110 and the third connecting member 130 to move, and the third connecting member 130 drives the backrest assembly to switch from the sitting position to the lying position. The setting of the third limiting member 311 can limit the movement of the first connecting rod 310, so that the backrest assembly stops rotating after switching from the sitting position to the lying position, and locates the position of the backrest assembly.

[0049] According to some embodiments of the present application, the footrest mechanism includes a footrest support portion 351, a footrest swing assembly 352, and a push rod 353. The footrest swing assembly 352 is used to connect the footrest support portion 351 and the seat frame 500. The push rod 353 is disposed on the footrest swing assembly 352 and is connected to the driving member 350. The footrest mechanism includes a footrest support portion 351, a footrest swing assembly 352, and a push rod 353. The footrest swing assembly 352 can drive the footrest support portion 351 to flip, and flip the footrest support portion 351 from below the seat frame 500 to the outside of the seat frame 500. A push rod 353 is disposed on the footrest swing assembly 352, and the push rod 353 is connected to the driving member 350. The other end of the driving member 350 is disposed on the fixed frame 400, and the driving member 350 drives the footrest mechanism to move relative to the fixed frame 400 to achieve the flipping of the footrest mechanism.

[0050] According to some embodiments of the present application, a fourth limiting member 121 is disposed on the second connecting member 120, and the fourth limiting member 121 is used to limit the movement of the third connecting member 130. The fourth limiting member 121 is disposed on the second connecting member 120. One end of the third connecting member 130 is rotatably connected to the second connecting member 120, and the other end of the third connecting member 130 is rotatably connected to the backrest assembly. Specifically, the third connecting member 130 is hingedly installed on the second connecting member 120. When the driving member 350 drives the functional iron frame to switch to the lying position, the third connecting member 130 is pulled to rotate downward. The backrest assembly is translated and rotated toward the side where the footrest mechanism is located under the traction of the third connecting member 130. The fourth limiting member 121 disposed on the second connecting member 120 can limit the continued downward rotation of the third connecting member 130, so that the backrest assembly stops rotating after switching from the sitting position to the lying position. It should be noted that, in some embodiments, the fourth limiting member 121 is provided as a limiting post protruding from the second connecting member 120, and the limiting effect is achieved by the limiting post abutting against the second connecting member 120.

[0051] According to some embodiments of the present application, the fixed frame 400 includes two side plates 410 and a bottom rod 420 disposed between the two side plates 410, and the bottom rod 420 is connected to the driving member 350. The fixed frame 400 is used to support the functional iron frame. The fixed frame 400 includes side plates 410 and a bottom rod 420. The side plates 410 are disposed on both sides of the bottom rod 420. One end of the driving member 350 is disposed on the bottom rod 420 of the fixed frame 400, and the other end of the driving member 350 is connected to the footrest mechanism to drive the footrest mechanism to move relative to the fixed frame 400.

[0052] The sofa according to the embodiment of the present application includes a functional iron frame with a large-angle zero-wall contact as described in the above embodiment, including a fixed frame 400, a backrest mechanism, a linkage mechanism, a footrest mechanism, and a driving component 350. The backrest mechanism includes a backrest assembly and a backrest connecting component. The linkage mechanism includes a seat frame 500 and an intermediate linkage component. The backrest connecting component includes a first connecting piece 110, a second connecting piece 120, and a third connecting piece 130. The first connecting piece 110 is linked with the intermediate linkage component through the second connecting piece 120, and the first connecting piece 110 is linked with the backrest assembly through the third connecting piece 130. The functional iron frame can drive the backrest assembly to translate and rotate through the third connecting piece 130 and the intermediate linkage component, and can realize large-angle rotation of the backrest assembly through small-angle swing of the first connecting piece 110. The backrest assembly will not interfere with the wall, improving the space utilization rate and comfort.

[0053] The above has described the embodiments of the present application in detail with reference to the drawings. However, the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present application.

Claims

1. A functional iron frame with a large angle and zero wall support, characterized in that: include: Fixed frame; A backrest mechanism, the backrest mechanism comprising a backrest assembly and a 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, the first connecting member is rotatably connected to the fixed frame, the two ends of the second connecting member are respectively rotatably connected to the first connecting member and the intermediate linkage member, 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 backrest assembly.

2. The large-angle zero-wall functional iron frame according to claim 1 is characterized in that: The fixing frame is provided with a first limiting member, and the first limiting member is used to limit the movement of the first connecting member.

3. The large-angle zero-wall functional iron frame according to claim 1 is characterized in that: The backrest assembly includes a backrest fixing plate, a backrest intermediate rod, a backrest swing rod and a backrest connecting rod. The middle part of the backrest intermediate rod is hinged on the backrest fixing plate, the two ends of the backrest intermediate rod are respectively rotatably connected to the third connecting member and the backrest swing rod, and the two ends of the backrest connecting rod are respectively rotatably connected to the backrest swing rod and the backrest fixing plate.

4. The large-angle zero-wall functional iron frame according to claim 3 is characterized in that: The backrest connecting rod is provided with a second limiter, and the second limiter is used to limit the movement of the backrest swing arm.

5. The large-angle zero-wall functional iron frame according to claim 1 is 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 connecting rod, a second connecting rod and an intermediate connecting rod, the two ends of the first connecting rod are respectively rotatably connected to the fixed frame and the intermediate connecting rod, the two ends of the second connecting rod are respectively rotatably connected to the fixed frame and the second connecting rod, and the second connecting member is rotatably connected to the first connecting rod.

6. The large-angle zero-wall functional iron frame according to claim 5 is 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.

7. The large-angle zero-wall functional iron frame according to claim 5 is characterized in that: The fixing frame is provided with a third limiting member, and the third limiting member is used to limit the movement of the first connecting rod.

8. The large-angle zero-wall functional iron frame according to claim 1 is 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.

9. The large-angle zero-wall functional iron frame according to claim 1 is characterized in that: The second connecting member is provided with a fourth limiting member, and the fourth limiting member is used to limit the movement of the third connecting member.

10. A sofa, characterized in that It comprises a functional iron frame with a large angle and zero wall support as described in any one of claims 1 to 9.

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