Functional iron stand and sofa

Abstract

The functional iron stand comprises a fixing frame, a linkage mechanism, a foot support mechanism and a driving component, the linkage mechanism comprises a seat frame and a middle linkage component, the middle linkage component is rotatably connected with the seat frame and the fixing frame, the foot support mechanism is rotatably installed on the seat frame, and the driving component is arranged between the fixing frame and the foot support mechanism. The driving part drives the foot support mechanism to move relative to the seat frame, so that the foot support mechanism can extend and retract; an arc-shaped groove and a sliding part are arranged on the seat frame, the foot support mechanism is rotatably mounted on the seat frame and connected with the sliding part, the driving part drives the foot support mechanism to move, and the arc-shaped groove and the sliding part are matched to limit the movement of the foot support mechanism; the middle linkage component is connected with the sliding piece, and the sliding piece moves in the arc-shaped groove and can limit the movement of the middle linkage component. And the functional iron stand limits the motion angle through the arc-shaped groove, so that shaking during posture conversion can be reduced, and the comfort of the functional iron stand is improved.

Description

Technical Field

[0001] The present application relates to the field of home furnishing technology, and in particular to a 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. The driving component drives the footrest and the seat frame to move to adjust the posture of the sofa, and can achieve the contraction and extension of the footrest. In the functional iron frame described in the related art, a connecting rod mechanism is usually used to achieve swinging. The swing of the connecting rod is limited by the resistance of the limit column. The angle is easily exceeded by limiting the angle in a two-point contact manner, and even causes the functional iron frame to shake during operation, affecting the overall stability of the functional iron frame and the comfort of sitting. 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 functional iron frame that can limit the movement angle, reduce shaking, and improve comfort.

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

[0005] The functional iron frame described in the embodiment of the present application includes:

[0006] Fixed frame;

[0007] 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;

[0008] A foot support mechanism, the foot support mechanism being rotatably mounted on the seat frame;

[0009] A driving component, the driving component is arranged between the fixing frame and the foot support mechanism;

[0010] The seat frame is provided with an arc groove and a sliding member movable in the arc groove, the intermediate linkage member is connected to the sliding member, the foot support mechanism is connected to the sliding member, and the foot support mechanism is rotatably mounted on the seat frame.

[0011] The functional iron frame according to the first aspect of the embodiment of the present application has at least the following beneficial effects: the functional iron frame of the present application comprises a fixed frame, a linkage mechanism, a footrest mechanism and a driving component, the linkage mechanism comprises a seat frame and an intermediate linkage component, the intermediate linkage component is rotatably connected with the seat frame and the fixed frame, the footrest mechanism can be rotatably mounted on the seat frame, the driving component is arranged between the fixed frame and the footrest mechanism, the driving component drives the footrest mechanism to move relative to the seat frame, and can realize the extension and contraction of the footrest mechanism; the seat frame is provided with an arc groove and a sliding member that can move in the arc groove, the footrest mechanism can be rotatably mounted on the seat frame, the footrest mechanism is connected to the sliding member, the driving member drives the footrest mechanism to move relative to the seat frame, and the arc groove and the sliding member cooperate to limit the movement of the footrest mechanism; the intermediate linkage component is connected to the sliding member, the sliding member moves in the arc groove, and can also limit the movement of the intermediate linkage component. The functional iron frame of the present application limits the movement angle through the arc groove, which can reduce the shaking during posture conversion and improve the comfort of the functional iron frame.

[0012] 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.

[0013] According to some embodiments of the present application, the footrest swing assembly includes a first footrest connecting rod, a second footrest connecting rod, a first footrest swing rod and a second footrest swing rod, the first footrest connecting rod and the second footrest connecting rod can be rotatably installed on the seat frame, one end of the first footrest connecting rod is fixedly connected to the sliding member, the other end of the first footrest connecting rod is rotatably connected to the first footrest swing rod, the two ends of the second footrest connecting rod are respectively rotatably connected to the seat frame and the second footrest swing rod, the two ends of the first footrest swing rod are respectively rotatably connected to the first footrest connecting rod and the footrest supporting part, the two ends of the second footrest swing rod are respectively rotatably connected to the second footrest connecting rod and the footrest supporting part, and the middle part of the first footrest swing rod is rotatably connected to the middle part of the second footrest connecting rod.

[0014] According to some embodiments of the present application, the second connecting rod of the foot rest is provided with a mounting portion, and the top rod is arranged on the mounting portion.

[0015] According to some embodiments of the present application, the footrest mechanism includes an extension portion, which includes an end plate and an extension rod, the end of the extension rod is rotatably connected to the second swing arm of the footrest, and the middle portion of the extension rod is rotatably connected to the footrest supporting portion.

[0016] According to some embodiments of the present application, the intermediate linkage component includes a first connecting member, a linkage rocker arm and a linkage connecting rod, the middle part of the first connecting member is rotatably mounted on the seat frame, the two ends of the first connecting member are respectively rotatably connected to the fixed frame and the linkage rocker arm, one end of the linkage rocker arm is rotatably connected to the first connecting member, the other end of the linkage rocker arm is fixedly connected to the sliding member, and the two ends of the linkage connecting rod are respectively rotatably connected to the fixed frame and the seat frame.

[0017] According to some embodiments of the present application, the intermediate linkage component further includes a linkage assembly, the linkage assembly is mounted on the fixed frame, and the first connecting member, the linkage rocker arm and the linkage connecting rod are rotatably mounted on the linkage assembly.

[0018] According to some embodiments of the present application, a backrest mechanism is further included, wherein the backrest mechanism is rotatably connected to the fixing frame, and the backrest mechanism is rotatably connected to the seat frame.

[0019] According to some embodiments of the present application, the fixing frame includes a bottom plate and two side plates arranged on both sides of the bottom plate, and the driving component is arranged on the bottom plate.

[0020] The sofa of the second embodiment of the present application includes the functional iron frame described in the first embodiment.

[0021] According to the sofa of the second embodiment of the present application, there are at least the following beneficial effects: the sofa of the present application comprises a functional iron frame, the functional iron frame comprises a fixed frame, a linkage mechanism, a footrest mechanism and a driving component, the linkage mechanism comprises a seat frame and an intermediate linkage component, the intermediate linkage component is rotatably connected with the seat frame and the fixed frame, the footrest mechanism can be rotatably mounted on the seat frame, the driving component is arranged between the fixed frame and the footrest mechanism, the driving component drives the footrest mechanism to move relative to the seat frame, and can realize the extension and contraction of the footrest mechanism; the seat frame is provided with an arc groove and a sliding member that can move in the arc groove, the footrest mechanism can be rotatably mounted on the seat frame, the footrest mechanism is connected to the sliding member, the driving member drives the footrest mechanism to move relative to the seat frame, and the arc groove and the sliding member cooperate to limit the movement of the footrest mechanism; the intermediate linkage component is connected to the sliding member, the sliding member moves in the arc groove, and can also limit the movement of the intermediate linkage component. The functional iron frame of the present application limits the movement angle through the arc groove, which can reduce the shaking during posture conversion and improve the comfort of the functional iron frame.

[0022] 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

[0023] 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:

[0024] Figure 1 is a structural schematic diagram of a functional iron frame according to an embodiment of the present application when in a sitting position;

[0025] Figure 2 yes Figure 1 A schematic structural diagram of the functional iron frame from another angle is shown;

[0026] Figure 3 is a structural schematic diagram of a functional iron frame according to an embodiment of the present application when it is in a TV posture;

[0027] Figure 4 yes Figure 3 A schematic structural diagram of the functional iron frame from another angle is shown;

[0028] Figure 5 is a structural schematic diagram of a functional iron frame according to an embodiment of the present application when in a lying position;

[0029] Figure 6 yes Figure 5 A structural schematic diagram of the functional iron frame from another angle is shown.

[0030] Reference numerals:

[0031] Fixed frame 100, bottom plate 110, side plate 120;

[0032] The seat frame 210, the arc groove 211, the sliding member 212, the intermediate linkage member 220, the first connecting member 221, the linkage swing rod 222, and the linkage connecting rod 223;

[0033] The footrest mechanism 300, the footrest supporting part 310, the footrest first connecting rod 321, the footrest second connecting rod 322, the footrest first swing rod 323, the footrest second swing rod 324, the extension rod 325, and the top rod 330;

[0034] Backrest mechanism 400. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Refer to the following Figures 1 to 6 Describe the functional iron frame of the embodiment of the present application.

[0040] The functional iron frame of the embodiment of the present application refers to Figures 1 to 6, including a fixing frame 100, a linkage mechanism, a foot support mechanism 300 and a driving component, wherein the linkage mechanism includes a seat frame 210 and an intermediate linkage component 220, wherein the intermediate linkage component 220 is rotatably connected to the seat frame 210 and the fixing frame 100, and the intermediate linkage component 220 can drive the seat frame 210 to move relative to the fixing frame 100, and adjust the posture of the seat frame 210. The foot support mechanism 300 can be rotatably mounted on the seat frame 210, and the driving component is arranged between the fixing frame 100 and the foot support mechanism 300, and the driving component drives the foot support mechanism 300 to move relative to the seat frame 210, and can realize the extension and retraction of the foot support mechanism 300. The seat frame 210 is provided with an arc groove 211 and a sliding member 212 that can move in the arc groove 211, the intermediate linkage component 220 is connected to the sliding member 212, the foot support mechanism 300 is connected to the sliding member 212, the sliding member 212 can drive the foot support mechanism 300 and the intermediate linkage component 220 to move, the sliding member 212 moves in the arc groove 211, the arc groove 211 can limit the movement of the sliding member 212, thereby limiting the movement of the foot support mechanism 300 and the intermediate linkage component 220, and completing the adjustment and fixation of the posture of the functional iron frame. The functional iron frame of the present application limits the movement angle through the arc groove 211, which can reduce the jitter during posture conversion and improve the comfort of the functional iron frame. Specifically, the posture adjustment process of the functional iron frame in the present application in actual use is introduced with a specific embodiment below. Figure 1 As shown in FIG. 1 , when the functional iron frame is in a sitting position, the sliding member 212 is located at one end of the arc groove 211, and the footrest mechanism 300 is retracted at the bottom of the seat frame 210 driven by the sliding member 212 and the driving component. When the functional iron frame switches from a sitting position to a TV position or a lying position with the footrest mechanism 300 extended, as shown in FIG. Figure 3 and Figure 5 As shown, the driving component drives the footrest mechanism 300 to move. The footrest mechanism 300 can be rotatably installed on the seat frame 210. The footrest mechanism 300 is connected to the sliding member 212. The footrest mechanism 300 drives the sliding member 212 to move in the arc groove 211. The arc groove 211 can limit the movement of the sliding member 212, thereby limiting the movement of the footrest mechanism 300. When the sliding member 212 slides to the other end of the arc groove 211, the footrest mechanism 300 stretches outward under the action of the driving component. The arc groove 211 limits the angle change of the sliding member 212 and the footrest mechanism 300, which can complete the adjustment and fixation of the functional iron frame posture. Figure 1 , Figure 3 and Figure 5As shown, the intermediate linkage component 220 is connected to the sliding member 212, and when the footrest mechanism 300 drives the sliding member 212 to move in the arc groove 211, the arc groove 211 can drive the intermediate linkage component 220 to move. During the process that the footrest mechanism 300 extends outward under the action of the driving component, the sliding member 212 can drive the intermediate linkage mechanism and the seat frame 210 to move downward in the arc groove 211, thereby completing the adjustment and fixation of the posture of the functional iron frame. The functional iron frame of the present application limits the movement angle through the cooperation of the arc groove 211 and the sliding member 212. Since the sliding member 212 is accommodated in the arc groove 211, after the sliding member 212 reaches the travel limit, there will be no relative movement between the sliding member 212 and the arc groove 211, thereby reducing the shaking during the posture conversion and improving the comfort of the functional iron frame.

[0041] According to some embodiments of the present application, the footrest mechanism 300 includes a footrest support portion 310, a footrest swing assembly and a top rod 330. The footrest swing assembly is used to connect the footrest support portion 310 and the seat frame 210. The top rod 330 is arranged on the footrest swing assembly, and the top rod 330 is connected to the driving component. The footrest mechanism 300 includes a footrest support portion 310, a footrest swing assembly and a top rod 330. The footrest support portion 310 can be rotatably mounted on the footrest swing assembly to support the human foot in a TV posture or a lying posture, such as Figure 3 , Figure 4 , Figure 5 and Figure 6 The driving component is connected to the top rod 330, and the driving component drives the footrest swing assembly to move relative to the seat frame 210 through the top rod 330. The footrest swing assembly flips relative to the seat frame 210, which can realize the extension and contraction of the footrest mechanism 300 and the posture conversion of the footrest mechanism 300.

[0042] According to some embodiments of the present application, the footrest swing assembly includes a first footrest link 321, a second footrest link 322, a first footrest swing rod 323 and a second footrest swing rod 324. The first footrest link 321 and the second footrest link 322 can be rotatably mounted on the seat frame 210. One end of the first footrest link 321 is fixedly connected to the sliding member 212, and the other end of the first footrest link 321 is rotatably connected to the first footrest swing rod 323. Both ends of the second footrest link 322 are rotatably connected to the seat frame 210 and the second footrest swing rod 324, respectively. Both ends of the first footrest swing rod 323 are rotatably connected to the first footrest link 321 and the footrest support portion 310, respectively. Both ends of the second footrest swing rod 324 are rotatably connected to the second footrest link 322 and the footrest support portion 310, respectively. The middle portion of the first footrest swing rod 323 is rotatably connected to the middle portion of the second footrest link 322. Figure 1As shown, when the functional iron frame is in a sitting position, the sliding member 212 is located at one end of the arc groove 211, and the first footrest link 321, the second footrest link 322, the first footrest swing rod 323 and the second footrest swing rod 324 of the footrest mechanism 300 are retracted at the bottom of the seat frame 210. When the functional iron frame switches from a sitting position to a TV position or a lying position, as shown in FIG. Figure 3 and Figure 5 As shown, the driving component drives the top rod 330 to move, and the first connecting rod 321 and the second connecting rod 322 of the footrest mechanism 300 can be rotatably installed on the seat frame 210. The first connecting rod 321 and the second connecting rod 322 of the footrest drive the first swing rod 323 and the second swing rod 324 of the footrest to extend outward, and the footrest support part 310 is flipped to the upper side under the action of the first swing rod 323 and the second swing rod 324 of the footrest to support the human foot. The first connecting rod 321 of the footrest is connected to the sliding member 212, and the first connecting rod 321 of the footrest drives the sliding member 212 to move in the arc groove 211. The arc groove 211 can limit the movement of the sliding member 212, thereby limiting the movement of the footrest mechanism 300. When the sliding member 212 slides to the other end of the arc groove 211, the footrest mechanism 300 is extended outward and then fixed. The arc groove 211 limits the angle change of the footrest mechanism 300, thereby completing the adjustment and fixation of the posture of the functional iron frame.

[0043] According to some embodiments of the present application, the foot support second link 322 is provided with a mounting portion, and the top rod 330 is provided on the mounting portion. The driving component drives the top rod 330 to move, and the inner side of the foot support second link 322 is provided with a mounting portion, and the top rod 330 is provided on the mounting portion. The driving component is connected to the top rod 330, and the driving component drives the foot support second link 322 and the foot support first link 321 to move relative to the seat frame 210 through the top rod 330, so as to realize the extension and contraction of the foot support mechanism 300 and realize the posture conversion of the foot support mechanism 300.

[0044] According to some embodiments of the present application, the footrest mechanism 300 includes an extension portion, which includes an end plate and an extension rod 325, the end of the extension rod 325 is rotatably connected to the footrest second swing rod 324, and the middle of the extension rod 325 is rotatably connected to the footrest support portion 310. The extension portion extends outward, which can increase the length of the footrest mechanism 300 extending outward, thereby improving comfort. Specifically, the extension portion includes an end plate and an extension rod 325, the end of the extension rod 325 is rotatably connected to the footrest second swing rod 324, the middle of the extension rod 325 is rotatably connected to the footrest support portion 310, the footrest second swing rod 324 rotates to drive the footrest support portion 310 to rotate, the footrest second swing rod 324 and the footrest support portion 310 cooperate to drive the extension rod 325 to rotate, so that the extension rod 325 can be flipped to the outside of the footrest support portion 310, thereby increasing the length of the footrest mechanism 300 extending outward, thereby improving comfort.

[0045] According to some embodiments of the present application, the intermediate linkage component 220 includes a first connecting member 221, a linkage rocker rod 222 and a linkage connecting rod 223. The middle part of the first connecting member 221 is rotatably mounted on the seat frame 210. The two ends of the first connecting member 221 are respectively rotatably connected to the fixed frame 100 and the linkage rocker rod 222. One end of the linkage rocker rod 222 is rotatably connected to the first connecting member 221, and the other end of the linkage rocker rod 222 is fixedly connected to the sliding member 212. The two ends of the linkage connecting rod 223 are respectively rotatably connected to the fixed frame 100 and the seat frame 210. The intermediate linkage component 220 is used to link the seat frame 210 and the fixed frame 100. Specifically, the intermediate linkage component 220 includes a first connecting member 221, a linkage rocker rod 222 and a linkage connecting rod 223. The middle part of the first connecting member 221 is rotatably installed on the seat frame 210. The two ends of the first connecting member 221 are respectively rotatably connected to the fixed frame 100 and the linkage rocker rod 222. One end of the linkage rocker rod 222 is rotatably connected to the first connecting member 221, and the other end of the linkage rocker rod 222 is fixedly connected to the sliding member 212. When the foot support mechanism 300 drives the sliding member 212 to move in the arc groove 211, the arc groove 211 can drive the linkage rocker rod 222 to move, the linkage rocker rod 222 drives the first connecting member 221 to move, and the first connecting member 221 is pulled to drive the seat frame 210 to move, so as to complete the adjustment and fixation of the posture of the functional iron frame. It should be noted that, in some embodiments, the first connecting member 221 is configured to be L-shaped, the middle part of the first connecting member 221 is rotatably mounted on the seat frame 210, and the two ends of the first connecting member 221 are respectively rotatably connected to the fixed frame 100 and the linkage rocker arm 222, so that it can rotate relative to the seat frame 210 and cooperate with the fixed frame 100 and the linkage rocker arm 222 to pull the seat frame 210 to move.

[0046] According to some embodiments of the present application, the intermediate linkage component 220 further includes a linkage assembly, which is mounted on the fixed frame 100, and the first connecting member 221, the linkage swing rod 222, and the linkage connecting rod 223 are rotatably mounted on the linkage assembly. The linkage assembly is used to link the fixed frame 100 and the intermediate linkage component 220, which is mounted on the fixed frame 100, and the first connecting member 221, the linkage swing rod 222, and the linkage connecting rod 223 of the intermediate linkage component 220 are rotatably mounted on the linkage assembly.

[0047] According to some embodiments of the present application, a backrest mechanism 400 is further included, and the backrest mechanism 400 is rotatably connected to the fixing frame 100, and the backrest mechanism 400 is rotatably connected to the seat frame 210. The backrest mechanism 400 is used for leaning against the back of the human body, and the backrest mechanism 400 is rotatably connected to the fixing frame 100, and the backrest mechanism 400 is rotatably connected to the seat frame 210. The backrest mechanism 400 can rotate relative to the fixing frame 100 and the seat frame 210, and the backrest mechanism 400 can rotate relative to the fixing frame 100 and the seat frame 210. Figure 3 , Figure 4 , Figure 5 and Figure 6By adjusting the angle of the backrest mechanism 400, the seat can be switched between the TV position and the lying position to improve comfort.

[0048] According to some embodiments of the present application, the fixing frame 100 includes a bottom plate 110 and two side plates 120 arranged on both sides of the bottom plate 110, and the driving component is arranged on the bottom plate 110. The fixing frame 100 is used to support the functional iron frame. The fixing frame 100 includes a bottom plate 110 and two side plates 120. The two side plates 120 are arranged on both sides of the bottom plate 110. The side plates 120 are connected to the bottom plate 110 to support components such as the linkage mechanism, the foot support mechanism 300 and the driving component. One end of the driving component is arranged on the bottom plate 110, and the other end of the driving component is arranged on the foot support mechanism 300. The driving component drives the foot support mechanism 300 to move, so as to realize the extension and retraction of the foot support mechanism 300.

[0049] The sofa of the embodiment of the present application comprises the functional iron frame of the above embodiment, the functional iron frame comprises a fixed frame 100, a linkage mechanism, a foot support mechanism 300 and a driving component, the linkage mechanism comprises a seat frame 210 and an intermediate linkage component 220, the intermediate linkage component 220 is rotatably connected with the seat frame 210 and the fixed frame 100, the foot support mechanism 300 can be rotatably installed on the seat frame 210, the driving component is arranged between the fixed frame 100 and the foot support mechanism 300, the driving component drives the foot support mechanism 300 to move relative to the seat frame 210, and can realize the extension and retraction of the foot support mechanism 300 The seat frame 210 is provided with an arc groove 211 and a sliding member 212 that can move in the arc groove 211. The foot support mechanism 300 can be rotatably mounted on the seat frame 210. The foot support mechanism 300 is connected to the sliding member 212. The driving member drives the foot support mechanism 300 to move relative to the seat frame 210. The arc groove 211 and the sliding member 212 cooperate to limit the movement of the foot support mechanism 300. The intermediate linkage member 220 is connected to the sliding member 212. The sliding member 212 moves in the arc groove 211 and can also limit the movement of the intermediate linkage member 220. The functional iron frame of the present application limits the movement angle through the arc groove 211, which can reduce the shaking during posture conversion and improve the comfort of the functional iron frame.

[0050] 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. Functional iron frame, characterized in that, include: Fixed frame; 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; The seat frame is provided with an arc groove and a sliding member movable in the arc groove, the intermediate linkage member is connected to the sliding member, the foot support mechanism is connected to the sliding member, and the foot support mechanism is rotatably mounted on the seat frame.

2. The 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.

3. The functional iron frame according to claim 2, characterized in that: The footrest swing assembly includes a first footrest connecting rod, a second footrest connecting rod, a first footrest swing rod and a second footrest swing rod. The first footrest connecting rod and the second footrest connecting rod can be rotatably installed on the seat frame. One end of the first footrest connecting rod is fixedly connected to the sliding member, and the other end of the first footrest connecting rod is rotatably connected to the first footrest swing rod. Both ends of the second footrest connecting rod are respectively rotatably connected to the seat frame and the second footrest swing rod. Both ends of the first footrest swing rod are respectively rotatably connected to the first footrest connecting rod and the footrest supporting part. Both ends of the second footrest swing rod are respectively rotatably connected to the second footrest connecting rod and the footrest supporting part. The middle part of the first footrest swing rod is rotatably connected to the middle part of the second footrest connecting rod.

4. The functional iron frame according to claim 3, characterized in that: The second connecting rod of the foot support is provided with a mounting portion, and the top rod is arranged on the mounting portion.

5. The functional iron frame according to claim 3, characterized in that: The footrest mechanism includes an extension portion, which includes an end plate and an extension rod. The end of the extension rod is rotatably connected to the second swing rod of the footrest, and the middle part of the extension rod is rotatably connected to the footrest supporting portion.

6. The functional iron frame according to claim 1, characterized in that: The intermediate linkage component includes a first connecting member, a linkage rocker arm and a linkage connecting rod. The middle part of the first connecting member is rotatably mounted on the seat frame. The two ends of the first connecting member are respectively rotatably connected to the fixed frame and the linkage rocker arm. One end of the linkage rocker arm is rotatably connected to the first connecting member, and the other end of the linkage rocker arm is fixedly connected to the sliding member. The two ends of the linkage connecting rod are respectively rotatably connected to the fixed frame and the seat frame.

7. The functional iron frame according to claim 6, characterized in that: The intermediate linkage component also includes a linkage assembly, which is mounted on the fixing frame, and the first connecting member, the linkage swing rod and the linkage connecting rod are rotatably mounted on the linkage assembly.

8. The functional iron frame according to claim 1, characterized in that: It also includes a backrest mechanism, which is rotatably connected to the fixing frame and rotatably connected to the seat frame.

9. The functional iron frame according to claim 1, characterized in that: The fixing frame comprises a bottom plate and two side plates arranged on both sides of the bottom plate, and the driving component is arranged on the bottom plate.

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

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