Multi-form convertible sofa frame and sofa

Abstract

The sofa frame comprises a fixed frame, a left movable frame and a right movable frame, the fixed frame is provided with a main cushion part and a main backrest part, the left movable frame is provided with a left cushion part which is connected to the left side of the main cushion part in a left-right sliding mode, and the left cushion part is embedded in the main cushion part; the right movable frame is provided with a right cushion part which is connected to the right side of the main cushion part in a left-right sliding mode, and the right cushion part is embedded in the main cushion part; a movable backrest part is arranged at the rear end of the left cushion part or the right cushion part, is connected to the main backrest part in a left-right sliding manner, and is embedded in the main backrest part. The sofa frame provided by the utility model has four forms, namely a single seat, a double seat, a single seat and chaise longue, and a double seat and chaise longue, and can realize conversion of various forms.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household articles, in particular to a sofa frame of multiple form conversion and sofa. BACKGROUND

[0002] The conventional sofa frame is mostly wooden structure fixed frame, and the wooden structure fixed frame basically determines the width of the whole sofa, although some sofa frames on the market have movable hardware structure, the hardware structure can make the sofa expand in the direction of deepening the seat, increase the seat depth and change into a bed, and some sofa frames can extend horizontally, but only simple horizontal extension can be realized, and the combination mode is single. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a sofa frame of multiple form conversion and sofa to solve one or more technical problems in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical scheme adopted to solve the above technical problems is as follows:

[0005] The utility model provides a sofa frame of multiple form conversion, which comprises:

[0006] A fixed frame is provided with a main seat cushion part and a main backrest part, and the main backrest part is connected to the rear end of the main seat cushion part;

[0007] A left movable frame is provided with a left seat cushion part which is left-slidably connected to the left side of the main seat cushion part, and the left seat cushion part is nested in the main seat cushion part;

[0008] A right movable frame is provided with a right seat cushion part which is right-slidably connected to the right side of the main seat cushion part, and the right seat cushion part is nested in the main seat cushion part;

[0009] The rear end of the left seat cushion part or the right seat cushion part is provided with a movable backrest part which is left-slidably or right-slidably connected to the main backrest part, and the movable backrest part is nested in the main backrest part.

[0010] The sofa frame has the following beneficial effects:

[0011] In use, the sofa frame has four forms: the first is single-person position, the right movable frame and the left movable frame are slid to the direction of the fixed frame, the left seat cushion part is nested in the main seat cushion part, the right seat cushion part is nested in the main seat cushion part, and the movable backrest part is nested in the main backrest part; the second is double-person position, the right movable frame or the left movable frame with the movable backrest part is slid to the outside of the fixed frame, so that the movable backrest part is expanded to the right side or the left side of the main backrest part, and the corresponding right seat cushion part or left seat cushion part is expanded to the right side or the left side of the main seat cushion part; the third is single-person position + concubine position, the right movable frame or the left movable frame without the movable backrest part is slid to the outside of the fixed frame, so that the right seat cushion part or the left seat cushion part is expanded to the right side or the left side of the main seat cushion part; and the fourth is double-person position + concubine position, the right movable frame and the left movable frame are both slid to the outside of the fixed frame, so that the movable backrest part is expanded to the right side or the left side of the main backrest part, and the right seat cushion part and the left seat cushion part are respectively expanded to the right side and the left side of the main seat cushion part, to realize the change of multiple forms.

[0012] As a further improvement of the above technical solution, the fixed frame comprises a left main side plate, a right main side plate, a bottom frame and a plurality of main cross beams, the left main side plate and the right main side plate are arranged in a left-right interval, the left main side plate comprises a left main seat cushion plate part and a left main backrest plate part connected at an angle, the right main side plate comprises a right main seat cushion plate part and a right main backrest plate part connected at an angle, the bottom frame is connected to the bottom between the left main seat cushion plate part and the right main seat cushion plate part, and a plurality of main cross beams are respectively connected to the upper part between the left main seat cushion plate part and the right main seat cushion plate part and the left main backrest plate part and the right main backrest plate part, to form the main seat cushion part and the main backrest part respectively.

[0013] As a further improvement of the above technical solution, the bottom frame comprises four corner plates distributed in a rectangular shape, four bottom cross beams connected between adjacent two corner plates, and reinforcing inclined beams connected between adjacent two bottom cross beams.

[0014] A left step plate part is arranged at the angle between the left main seat cushion plate part and the left main backrest plate part, and a right step plate part is arranged at the angle between the right main seat cushion plate part and the right main backrest plate part.

[0015] The inner side of the left main backrest plate part is provided with a left supporting vertical beam and a left supporting inclined beam, the left supporting vertical beam is located at the rear edge of the left main backrest plate part, the left supporting inclined beam is arranged at the front edge of the left main backrest plate part, and the lower end of the left supporting vertical beam is connected to the bottom frame.

[0016] The inner side of the right main backrest plate part is provided with a right support vertical beam and a right support inclined beam, the right support vertical beam is located at the rear edge of the right main backrest plate part, the right support inclined beam is arranged at the front edge of the right main backrest plate part, and the lower end of the right support vertical beam is connected with the bottom frame.

[0017] As a further improvement of the above technical solution, the left seat cushion part comprises a left movable side plate located at the left side of the main seat cushion part, a plurality of left sliding cross beams extending in the left-right direction, the plurality of left sliding cross beams are spaced apart in the front-rear direction, the left ends of the plurality of left sliding cross beams are connected with the left movable side plate, and the plurality of left sliding cross beams are in left-right sliding cooperation with the main seat cushion part.

[0018] The right seat cushion part comprises a right movable side plate located at the right side of the main seat cushion part, a plurality of right sliding cross beams extending in the left-right direction, the plurality of right sliding cross beams are spaced apart in the front-rear direction, the right ends of the plurality of right sliding cross beams are connected with the right movable side plate, and the plurality of right sliding cross beams are in left-right sliding cooperation with the main seat cushion part.

[0019] The movable backrest part comprises a backrest side plate located at the left side or the right side of the main backrest part and a plurality of backrest sliding cross beams, the backrest side plate is connected to the rear end of the left movable side plate or the right movable side plate, the plurality of backrest sliding cross beams are connected with the backrest side plate, and the plurality of backrest sliding cross beams are in left-right sliding cooperation with the main backrest part.

[0020] As a further improvement of the above technical solution, the plurality of left sliding cross beams and the plurality of right sliding cross beams are staggered in the front-rear direction on the top side of the main seat cushion part.

[0021] As a further improvement of the above technical solution, the fixed frame further comprises a guide frame located on the top side of the main seat cushion part, the guide frame is connected between the left main seat cushion plate part and the right main seat cushion plate part, the guide frame comprises a plurality of seat cushion guide rails spaced apart in the front-rear direction, and the left sliding cross beams and the right sliding cross beams are in one-to-one sliding connection on the front side or the rear side of the plurality of seat cushion guide rails.

[0022] As a further improvement of the above technical solution, the fixed frame further comprises a plurality of backrest guide rails distributed in the main backrest part, the plurality of backrest guide rails are connected between the left main backrest plate part and the right main backrest plate part, and the plurality of backrest sliding cross beams are in one-to-one sliding connection with the plurality of backrest guide rails.

[0023] As a further improvement of the above technical solution, the bottom frame is provided with a plurality of support feet, the bottom of the left movable side plate is provided with a plurality of left support pulleys, and the bottom of the right movable side plate is provided with a plurality of right support pulleys.

[0024] As a further improvement of the above technical solution, the left movable side plate is provided with a first left magnetic attraction element, and the left main side plate is provided with a second left magnetic attraction element magnetically connected with the first left magnetic attraction element.

[0025] The right movable side plate is provided with a first right magnetic attraction element, and the right main side plate is provided with a second right magnetic attraction element magnetically connected with the first right magnetic attraction element.

[0026] In addition, the utility model provides a sofa, including the sofa frame.

[0027] Other features and advantages of the present application will be described in the following description and become apparent from the description, or can be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be further described below in combination with the drawings and examples, wherein:

[0029] The utility model will be further described below in combination with the drawings and examples;

[0030] Figure 1 is a fixed frame provided by the utility model, and a structural schematic diagram of an embodiment thereof;

[0031] Figure 2 is a sofa frame provided by the utility model, and a structural schematic diagram of an embodiment thereof in a double seat + concubine position form Figure 1 ;

[0032] Figure 3 is a sofa frame provided by the utility model, and a structural schematic diagram of an embodiment thereof in a double seat + concubine position form Figure 2 ;

[0033] Figure 4 is a sofa frame provided by the utility model, and a structural schematic diagram of an embodiment thereof in a single seat form;

[0034] Figure 5 is a sofa frame provided by the utility model, and a structural schematic diagram of an embodiment thereof in a double seat form;

[0035] Figure 6 is a sofa frame provided by the utility model, and a structural schematic diagram of an embodiment thereof in a single seat + concubine position form;

[0036] REFERENCE NUMERALS:

[0037] Fixed frame 100; main seat cushion part 110; main backrest part 120; left main side plate 130; left main seat cushion plate part 131; left main backrest plate part 132; left support vertical beam 1321; left support inclined beam 1322; left step plate part 133; second left magnetic attraction piece 134; right main side plate 140; right main seat cushion plate part 141; right main backrest plate part 142; right support vertical beam 1421; right support inclined beam 1422; right step plate part 143; bottom frame 150; corner plate 151; bottom horizontal beam 152; reinforcing inclined beam 153; support leg 154; main horizontal beam 160; guide frame 170; seat cushion guide rail 171; guide rail groove 1711; backrest guide rail 180;

[0038] Left movable frame 200; left seat cushion part 210; left movable side plate 211; left sliding horizontal beam 212; left support pulley 213; first left magnetic attraction piece 214; movable backrest part 220; backrest side plate 221; backrest sliding horizontal beam 222;

[0039] Right movable frame 300; right seat cushion part 310; right movable side plate 311; right sliding horizontal beam 312; right support pulley 313; first right magnetic attraction piece 314. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0041] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0042] In the description of the present application, the plural means more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implying indicating the number of indicated technical features or implying indicating the sequence of indicated technical features.

[0043] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0044] The technical scheme of the utility model will be described clearly and completely in connection with the drawings below, obviously, the following described embodiments are part of the embodiments of the utility model, not all embodiments.

[0045] Now some sofas expand in the direction of extending the seat depth, reach the effect of increasing the seat depth, transform into a bed, also some sofa frames can extend horizontally, but only can simply realize the horizontal extension, the combination mode is single, the utility model provides a sofa frame of multiple form conversion.

[0046] As shown in Figure 2 The sofa frame of the utility model comprises a fixed frame 100, a left movable frame 200 and a right movable frame 300.

[0047] As shown in Figure 1 The fixed frame 100 is provided with a main seat cushion part 110 and a main backrest part 120, and the lower end of the main backrest part 120 is connected to the rear end of the main seat cushion part 110 at an included angle.

[0048] As shown in Figure 2 The left movable frame 200 is provided with a left seat cushion part 210, which is slidably connected to the left side of the main seat cushion part 110, and the left seat cushion part 210 can be nested in the main seat cushion part 110 and can be expanded to the left side of the main seat cushion part 110 by sliding to the left side.

[0049] As shown in Figure 2 The right movable frame 300 is provided with a right seat cushion part 310, which is slidably connected to the right side of the main seat cushion part 110, and the right seat cushion part 310 can be nested in the main seat cushion part 110 and can be expanded to the right side of the main seat cushion part 110 by sliding to the right side.

[0050] The rear end of the left seat cushion part 210 or the right seat cushion part 310 of the utility model is provided with a movable backrest part 220, which is slidably connected to the main backrest part 120, and the movable backrest part 220 can be nested in the main backrest part 120 and can be expanded to the left side or the right side of the main seat cushion part 110 by sliding to the left side or the right side.

[0051] As shown in Figure 2 In this embodiment, the movable backrest part 220 is arranged on the left seat cushion part 210, and the left movable frame 200 is arranged side by side with the fixed frame 100 as a double seat after expansion, and the right seat cushion part 310 is arranged as a concubine seat after expansion.

[0052] In use, the sofa frame of this utility model has four forms: the first is a single seat, such as... Figure 4 As shown, both the right movable frame 300 and the left movable frame 200 slide towards the fixed frame 100 until the left seat cushion 210 is nested within the main seat cushion 110, the right seat cushion 310 is nested within the main seat cushion 110, and the movable backrest 220 is nested within the main backrest 120; the second type is a two-seater, as shown... Figure 5 As shown, the right movable frame 300 or the left movable frame 200 with the movable backrest 220 is slid outward toward the outside of the fixed frame 100, so that the movable backrest 220 extends outward to the right or left side of the main backrest 120, and the corresponding right seat cushion 310 or left seat cushion 210 extends outward to the right or left side of the main seat cushion 110; as Figure 6 As shown, the third type is a single seat + chaise lounge, where the right movable frame 300 or left movable frame 200 without the movable backrest 220 slides outward toward the fixed frame 100, causing the right seat cushion 310 or left seat cushion 210 to extend outward to the right or left side of the main seat cushion 110; the fourth type is a double seat + chaise lounge, as shown... Figure 2 and Figure 3 As shown, the right movable frame 300 and the left movable frame 200 are slid outward toward the fixed frame 100, so that the movable backrest 220 extends outward to the right or left side of the main backrest 120, and the right seat cushion 310 and the left seat cushion 210 extend to the right and left sides of the main seat cushion 110 respectively, so as to achieve multiple form changes.

[0053] Furthermore, such as Figure 1 and Figure 3 As shown, the fixed frame 100 of this embodiment includes a left main side panel 130, a right main side panel 140, a bottom frame 150, and several main crossbeams 160. The left main side panel 130 and the right main side panel 140 are arranged opposite each other with a left-right interval. The left main side panel 130 includes a left main seat cushion panel 131 and a left main backrest panel 132 connected at an angle, while the right main side panel 140 includes a right main seat cushion panel 141 and a right main backrest panel 142 connected at an angle. Different angles can be set according to the model of the sofa.

[0054] In this embodiment, the bottom frame 150 is connected to the bottom between the left main seat cushion plate 131 and the right main seat cushion plate 141. Several main crossbeams 160 are connected to the upper part between the left main seat cushion plate 131 and the right main seat cushion plate 141 to form the main seat cushion 110. Several main crossbeams 160 are also connected between the left main backrest plate 132 and the right main backrest plate 142 to form the main backrest 120. In this embodiment, the left main side plate 130 and the right main side plate 140 are connected together by the bottom frame 150 and the main crossbeams 160 to form a fixed frame 100.

[0055] For a 150mm base frame structure, such asFigure 1 and Figure 3 As shown, the bottom frame 150 in this embodiment is a rectangular frame. The bottom frame 150 includes four corner plates 151 arranged in a rectangular shape, four bottom crossbeams 152 connected between two adjacent corner plates 151, and reinforcing diagonal beams 153 connected between two adjacent bottom crossbeams 152. The reinforcing diagonal beams 153 reinforce the four corners of the bottom frame 150 to improve the stability of the structure.

[0056] To further improve the structural strength of the fixed frame 100, such as Figure 1 As shown, in this embodiment, a left step plate 133 is provided at the angle between the left main seat cushion plate 131 and the left main backrest plate 132, and a right step plate 143 is provided at the angle between the right main seat cushion plate 141 and the right main backrest plate 142. The structural rigidity of the left main side plate 130 and the right main side plate 140 is improved by the left step plate 133 and the right step plate 143, respectively.

[0057] The main crossbeam 160 extends to the left and right, and its left and right ends are connected to the left main side plate 130 and the right main side plate 140, respectively. The number and distribution of the main crossbeams 160 can be determined according to the requirements. In this embodiment, there are six main crossbeams 160. The six main crossbeams 160 are respectively located on the front side between the left main seat cushion plate 131 and the right main seat cushion plate 141, between the left step plate 133 and the right step plate 143, on the lower, middle and top of the back of the left main backrest plate 132 and the right main backrest plate 142, and on the lower front of the left main backrest plate 132 and the right main backrest plate 142.

[0058] In this embodiment, the front edges of the left main backrest panel 132 and the right main backrest panel 142 are inclined forward and downward, while the rear edges of the left main backrest panel 132 and the right main backrest panel 142 are vertically arranged. To enhance the support capacity between the left main backrest panel 132 and the right main backrest panel 142, as follows... Figure 1 As shown, the left main backrest panel 132 has a left support vertical beam 1321 and a left support diagonal beam 1322 on its inner side. The left support vertical beam 1321 is vertically arranged at the rear edge of the left main backrest panel 132, and the left support diagonal beam 1322 is arranged at the front edge of the left main backrest panel 132. The lower end of the left support vertical beam 1321 is connected to the bottom frame 150, and the lower end of the left support diagonal beam 1322 is connected to the main crossbeam 160 between the left step panel 133 and the right step panel 143. The left support vertical beam 1321 is also connected to the main crossbeam 160 on the back side between the left main backrest panel 132 and the right main backrest panel 142.

[0059] Correspondingly, such as Figure 1As shown, the inner side of the right main backrest plate part 142 of the embodiment is provided with a right support vertical beam 1421 located at the rear edge of the right main backrest plate part 142 and a right support inclined beam 1422 provided at the front edge of the right main backrest plate part 142. The lower end of the right support vertical beam 1421 is connected with the bottom frame 150, and the lower end of the right support inclined beam 1422 is connected with the main horizontal beam 160 between the left step plate part 133 and the right step plate part 143, and the right support vertical beam 1421 is also connected with the main horizontal beam 160 at the back between the left main backrest plate part 132 and the right main backrest plate part 142.

[0060] As shown, the left seat cushion part 210 of the embodiment comprises a left movable side plate 211 located at the left side of the main seat cushion part 110 and a plurality of left sliding horizontal beams 212 extending in the left-right direction. The left ends of the plurality of left sliding horizontal beams 212 are connected with the left movable side plate 211, and the plurality of left sliding horizontal beams 212 are in left-right sliding cooperation with the main seat cushion part 110. The plurality of left sliding horizontal beams 212 are spaced apart in the front-rear direction, and the plurality of left sliding horizontal beams 212 realize the effect of left-right sliding and also serve as the support of the left seat cushion part 210. Figure 2 As shown, the right seat cushion part 310 of the embodiment comprises a right movable side plate 311 located at the right side of the main seat cushion part 110 and a plurality of right sliding horizontal beams 312 extending in the left-right direction. The right ends of the plurality of right sliding horizontal beams 312 are connected with the right movable side plate 311, and the plurality of right sliding horizontal beams 312 are in left-right sliding cooperation with the main seat cushion part 110. The plurality of right sliding horizontal beams 312 are spaced apart in the front-rear direction.

[0061] Figure 2 As shown, the movable backrest part 220 of the embodiment comprises a backrest side plate 221 and a plurality of backrest sliding horizontal beams 222. Since the movable backrest part 220 of the embodiment is located at the left seat cushion part 210, the backrest side plate 221 is located at the left side of the main backrest part 120 and is connected to the rear end of the left movable side plate 211. The backrest side plate 221 of the embodiment is in one-piece structure with the left movable side plate 211. The left ends of the plurality of backrest sliding horizontal beams 222 are connected with the backrest side plate 221, and the plurality of backrest sliding horizontal beams 222 are in left-right sliding cooperation with the main backrest part 120. The plurality of backrest sliding horizontal beams 222 realize the effect of left-right sliding and also serve as the support of the movable backrest part 220.

[0062] Further, as shown, the plurality of left sliding horizontal beams 212 and the plurality of right sliding horizontal beams 312 of the embodiment are staggered and distributed in the top side of the main seat cushion part 110 in the front-rear direction. Figure 2 Further, as shown, the plurality of left sliding horizontal beams 212 and the plurality of right sliding horizontal beams 312 of the embodiment are staggered and distributed in the top side of the main seat cushion part 110 in the front-rear direction.

[0063] Figure 2 Further, as shown, the plurality of left sliding horizontal beams 212 and the plurality of right sliding horizontal beams 312 of the embodiment are staggered and distributed in the top side of the main seat cushion part 110 in the front-rear direction. Figure 4 ​​As shown, when in single-person position, both the left sliding crossbeam 212 and the right sliding crossbeam 312 can serve as support of the main seat cushion part 110, and the front-and-back staggered distribution of the left sliding crossbeam 212 and the right sliding crossbeam 312 can make the structure of the sofa frame in the front-and-back direction more compact.

[0064] As shown in Figure 1 and Figure 2 , the fixed frame 100 of the embodiment further comprises a guide frame 170 located at the top side of the main seat cushion part 110, the guide frame 170 being connected between the left main seat cushion plate part 131 and the right main seat cushion plate part 141, and the guide frame 170 comprising a plurality of seat cushion guide rails 171 distributed in front-and-back intervals, the left sliding crossbeam 212 and the right sliding crossbeam 312 being slidingly connected to the front side or the rear side of the plurality of seat cushion guide rails 171.

[0065] Specifically, as shown in Figure 1 , the seat cushion guide rail 171 of the embodiment is provided with a guide rail groove 1711 opening to the rear or rearward, and the left sliding crossbeam 212 and the right sliding crossbeam 312 are both provided with pulleys slidingly arranged in the guide rail groove 1711 to realize the left-and-right sliding and fixing of the left sliding crossbeam 212 and the right sliding crossbeam 312.

[0066] As shown in Figure 1 and Figure 2 , the fixed frame 100 of the embodiment further comprises a plurality of backrest guide rails 180 distributed in the main backrest part 120, the plurality of backrest guide rails 180 being connected between the left main backrest plate part 132 and the right main backrest plate part 142, and a plurality of backrest sliding crossbeams 222 being slidingly connected to the plurality of backrest guide rails 180, the connection form between the backrest guide rail 180 and the backrest sliding crossbeam 222 being the same as that of the above-mentioned seat cushion guide rail 171.

[0067] The embodiment is provided with a through opening corresponding to the plurality of backrest sliding crossbeams 222 on the left main backrest plate part 132, and the backrest sliding crossbeams 222 slidingly cooperate with the backrest guide rails 180 after passing through the through opening.

[0068] Furthermore, the bottom frame 150 of the embodiment is provided with a plurality of support feet 154 at the bottom, specifically, the bottom of each of the four corner plates 151 is provided with a support foot 154, the bottom of the left movable side plate 211 is provided with a plurality of left support pulleys 213 for supporting the left movable frame 200, and the bottom of the right movable side plate 311 is provided with a plurality of right support pulleys 313 for supporting the right movable frame 300, so that the right movable frame 300 and the left movable frame 200 are more stable in extension.

[0069] In order to avoid the right movable frame 300 and the left movable frame 200 from extending outward due to some unintentional actions, as shown in Figures 1 to 3As shown, in this embodiment, a first left magnetic clasp 214 is provided on the left movable side panel 211, and a second left magnetic clasp 134 is provided on the left main side panel 130, which is magnetically connected to the first left magnetic clasp 214. After the left movable side panel 211 is retracted, the left movable frame 200 is locked by the magnetic attraction between the first left magnetic clasp 214 and the second left magnetic clasp 134.

[0070] Correspondingly, the right movable side panel 311 is provided with a first right magnetic 314, and the right main side panel 140 is provided with a second right magnetic 314 that is magnetically connected to the first right magnetic 314.

[0071] When needed, the user applies force along the guide rail to overcome the magnetic force, allowing the right movable frame 300 and the left movable frame 200 to extend outward.

[0072] In this embodiment, the first left magnetic absorbing member 214 and the first right magnetic absorbing member 314 are metal components. If the left movable side plate 211 and the right movable side plate 311 are metal plates, then the left movable side plate 211 and the right movable side plate 311 themselves are the first left magnetic absorbing member 214 and the first right magnetic absorbing member 314. In this embodiment, the first left magnetic absorbing member 214 and the first right magnetic absorbing member 314 are iron bars. The left support pulley 213 and the right support pulley 313 are respectively fixed on the first left magnetic absorbing member 214 and the first right magnetic absorbing member 314, while the second left magnetic absorbing member 134 and the first right magnetic absorbing member 314 are long bar magnets.

[0073] In addition, this utility model also proposes a sofa, including the sofa frame mentioned above. When the sofa in this embodiment is in use, it is equipped with foldable seat cushions and backrest cushions. In order to further improve comfort, the left movable side panel 211, backrest side panel 221 and right movable side panel 311 are wrapped with cushions.

[0074] like Figure 4 As shown, when the right movable frame 300 and the left movable frame 200 are fully retracted, it can be used as a single-seat sofa, with a seat cushion soft pad placed on the main seat cushion 110 and a backrest soft pad placed on the main backrest 120.

[0075] like Figure 5 As shown, extending the left movable frame 200 to the left expands the single seat to a double seat. The seat cushion and backrest can be changed from a folded state to an unfolded state to completely cover the fixed frame 100 and the left movable frame 200.

[0076] like Figure 6 As shown, extending the right movable frame 300 to the right expands the single seat to a single seat plus a chaise lounge. The seat cushion can be folded or unfolded to completely cover the fixed frame 100 and the right movable frame 300.

[0077] like Figure 2As shown, the left movable frame 200 is stretched to the left and the right movable frame 300 is stretched to the right, i.e. from a single-person position to a double-person position + a concubine position, and the seat cushion soft package and the backrest soft package can be converted from a folded state to an unfolded state to completely cover the fixed frame 100, the left movable frame 200 and the right movable frame 300.

[0078] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the purpose of the present application.

Claims

1. A sofa frame with multiple transformation modes, characterized in that, The sofa frame comprises: a fixed frame provided with a main seat cushion part and a main backrest part, the main backrest part being connected to the rear end of the main seat cushion part; a left movable frame provided with a left seat cushion part slidably connected to the left side of the main seat cushion part, the left seat cushion part being nested in the main seat cushion part; a right movable frame provided with a right seat cushion part slidably connected to the right side of the main seat cushion part, the right seat cushion part being nested in the main seat cushion part; the rear end of the left seat cushion part or the right seat cushion part is provided with a movable backrest part, the movable backrest part being slidably connected to the main backrest part, and the movable backrest part being nested in the main backrest part.

2. The sofa frame according to claim 1, wherein: the fixed frame comprises a left main side plate, a right main side plate, a bottom frame and a plurality of main cross beams, the left main side plate and the right main side plate are oppositely arranged at intervals in the left-right direction, the left main side plate comprises a left main seat cushion plate part and a left main backrest plate part connected at an angle, the right main side plate comprises a right main seat cushion plate part and a right main backrest plate part connected at an angle, the bottom frame is connected to the bottom between the left main seat cushion plate part and the right main seat cushion plate part, and the plurality of main cross beams are respectively connected to the upper part between the left main seat cushion plate part and the right main seat cushion plate part and the part between the left main backrest plate part and the right main backrest plate part to form the main seat cushion part and the main backrest part respectively.

3. The sofa frame according to claim 2, wherein: the bottom frame comprises four corner plates distributed in a rectangular shape, four bottom cross beams connected between adjacent two corner plates, and reinforcing inclined beams connected between adjacent two bottom cross beams; a left step plate part is arranged at the angle between the left main seat cushion plate part and the left main backrest plate part, and a right step plate part is arranged at the angle between the right main seat cushion plate part and the right main backrest plate part; the inner side of the left main backrest plate part is provided with a left support vertical beam located at the rear edge of the left main backrest plate part and a left support inclined beam arranged at the front edge of the left main backrest plate part, and the lower end of the left support vertical beam is connected to the bottom frame; the inner side of the right main backrest plate part is provided with a right support vertical beam located at the rear edge of the right main backrest plate part and a right support inclined beam arranged at the front edge of the right main backrest plate part, and the lower end of the right support vertical beam is connected to the bottom frame.

4. The sofa frame according to any one of claims 2 or 3, wherein: the left seat cushion part comprises a left movable side plate located at the left side of the main seat cushion part and a plurality of left sliding cross beams extending in the left-right direction, the left ends of the plurality of left sliding cross beams being connected to the left movable side plate, and the plurality of left sliding cross beams being slidably matched with the main seat cushion part; the right seat cushion part comprises a right movable side plate located at the right side of the main seat cushion part and a plurality of right sliding cross beams extending in the left-right direction, the right ends of the plurality of right sliding cross beams being connected to the right movable side plate, and the plurality of right sliding cross beams being slidably matched with the main seat cushion part. The movable backrest part comprises a backrest side plate located on the left side or right side of the main backrest part and a plurality of backrest sliding beams, the backrest side plate is connected to the rear end of the left movable side plate or the right movable side plate, and the plurality of backrest sliding beams are connected to the backrest side plate and are in sliding fit with the main backrest part.

5. The sofa frame of claim 4, wherein: The plurality of left sliding beams and the plurality of right sliding beams are staggered in front and back on the top side of the main seat cushion part.

6. The sofa frame of claim 5, wherein: The fixed frame further comprises a guide frame located on the top side of the main seat cushion part, the guide frame is connected between the left main seat cushion plate part and the right main seat cushion plate part, and the guide frame comprises a plurality of seat cushion guide rails arranged in front and back, and the left sliding beam and the right sliding beam are in one-to-one sliding connection on the front side or the rear side of the plurality of seat cushion guide rails.

7. The sofa frame of claim 4, wherein: The fixed frame further comprises a plurality of backrest guide rails arranged in the main backrest part, the plurality of backrest guide rails are connected between the left main backrest plate part and the right main backrest plate part, and the plurality of backrest sliding beams are in one-to-one sliding connection with the plurality of backrest guide rails.

8. The sofa frame of claim 4, wherein: The bottom part of the bottom frame is provided with a plurality of supporting feet, the bottom of the left movable side plate is provided with a plurality of left supporting pulleys, and the bottom of the right movable side plate is provided with a plurality of right supporting pulleys.

9. The sofa frame of claim 4, wherein: The left movable side plate is provided with a first left magnetic attraction element, and the left main side plate is provided with a second left magnetic attraction element magnetically connected with the first left magnetic attraction element; The right movable side plate is provided with a first right magnetic attraction element, and the right main side plate is provided with a second right magnetic attraction element magnetically connected with the first right magnetic attraction element.

10. A sofa characterized in that: The sofa frame comprises the sofa frame according to any one of claims 1 to 9.

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