Self-assembling active sofa frame assembly

Abstract

This utility model discloses a self-assembly movable sofa frame assembly, including a left armrest, a right armrest, a backrest frame, a front rotation mechanism, and a rear rotation drive mechanism. The front rotation mechanism is installed at the front of the left and right armrests, and the rear rotation drive mechanism is located at the rear of the left and right armrests. The front and rear rotation drive mechanisms are connected by a connecting rod. The backrest frame is inserted into the rear rotation drive mechanism. There is a front tube between the two front rotation mechanisms and a rear tube between the left and right armrests. A telescopic rod is connected between the front and rear tubes. The telescopic rod is linked with the front and rear rotation drive mechanisms, causing the backrest frame to rotate and the connecting rod telescopic assembly to extend or retract. When the connecting rod telescopic assembly extends, the support plate is horizontal; when the connecting rod telescopic assembly retracts, the support plate is vertical. This frame assembly has a simplified structure and ingenious design. The scattered parts can be packaged and transported without assembly, reducing transportation costs. Users can assemble it themselves and experience the fun of self-assembly.

Description

Technical Field

[0001] This utility model relates to the field of furniture product technology, and more specifically to a self-assembly movable sofa frame assembly. Background Technology

[0002] Sofas are a traditional type of furniture, and with the improvement of people's living standards, movable sofas have also seen rapid development in recent years. Movable sofas have an internal frame assembled from multiple parts. Sofas or massage chairs, to enhance comfort, feature a rotating backrest that also provides leg support when the person is lying down.

[0003] However, the aforementioned movable sofas have complex and heavy frame structures, making them difficult to package and transport, and resulting in high freight costs, which makes them unsuitable for the new domestic and international trade environment.

[0004] Movable sofas consist of an internal frame and external upholstery. Some sofa manufacturers do not produce all components or processes in the same factory. For example, the internal frame might be produced in one factory but then transported to another for further production. Due to the complexity of the frame structure, direct assembly from individual components is difficult; the entire frame needs to be assembled before transportation. The assembled frame is bulky, resulting in high transportation costs, especially for international trade, which significantly increases costs and makes the product uncompetitive in the market.

[0005] Therefore, it is necessary to develop a simplified and easy-to-assemble movable sofa frame to facilitate subsequent assembly processes by users, thereby reducing transportation costs and increasing the product's market competitiveness. Summary of the Invention

[0006] To address the aforementioned issues, this invention provides a simplified self-assembly movable sofa frame assembly, which facilitates user self-assembly and significantly reduces transportation costs.

[0007] According to one aspect of the present invention, a self-assembly movable sofa frame assembly is provided, which includes a left armrest and a right armrest, the left armrest and the right armrest are symmetrically arranged, and a backrest frame is provided between the left armrest and the right armrest;

[0008] The front rotating mechanism has a pair of components arranged symmetrically on the left and right. The front rotating mechanism includes a fixed component, a rotating main board, a connecting rod telescopic assembly, and a support plate. The support plate is installed at the front end of the connecting rod telescopic assembly. The upper part of the fixed component is fixed to the left handrail / or right handrail. The rotating main board is triangular in shape. The two bottom corners of the rotating main board are respectively hinged to the fixed component to form hinge point one and hinged to one side of the rear end of the connecting rod telescopic assembly to form hinge point two. The other side of the rear end of the connecting rod telescopic assembly is hinged to the fixed component to form hinge point three. Hinge point three is located diagonally above hinge point one.

[0009] A rear rotation drive mechanism, the rear end of which is connected to the backrest frame, and the front end of which is hinged to the top corner of the rotating main board.

[0010] The extension or retraction of the linkage telescopic assembly and the rotation of the backrest frame are achieved by driving the rotating main board through the rear rotation drive mechanism. When the linkage telescopic assembly is extended, the support plate is horizontal, and when the linkage telescopic assembly is retracted, the support plate is vertical.

[0011] Therefore, the structure of the self-assembly movable sofa frame is simplified, consisting of five parts: left armrest, right armrest, backrest frame, front rotation mechanism, and rear rotation drive mechanism. Even the individual components of the front and rear rotation drive mechanisms can be packaged as individual parts for transportation, eliminating the need to assemble the frame before shipping and greatly reducing the transportation volume of a single product. After receiving the components, users can first assemble the front and rear rotation drive mechanisms, then install the front rotation mechanism onto the left or right armrest, connect the rear rotation drive mechanism to the front rotation mechanism, install the left and right armrests symmetrically, and finally connect the backrest frame to the rear rotation drive mechanism. The assembly steps are simple, allowing users to experience the fun of self-assembly. Depending on user needs, if the front and rear rotation drive mechanisms are pre-assembled before shipment, since these two parts are sheet-like structures after assembly, they occupy little space and will not increase transportation space significantly.

[0012] In some embodiments, the rear rotation drive mechanism includes a fixed plate, a plate support, an inner rotating component, an outer rotating component, and a connecting rod;

[0013] The fixing plate is installed on the left handrail / or right handrail. The fixing plate has an arc track and a structure that is higher at the back and lower at the front.

[0014] The upper part of the insert support is connected to the backrest frame, the lower front end of the insert support is hinged to the fixed plate to form hinge point four, the lower rear end of the insert support is hinged to one end of the inner rotating part to form hinge point five, and hinge point five can be slidably embedded in the arc-shaped track.

[0015] The other end of the inner rotating part is hinged to one end of the outer rotating part and the rear end of the connecting rod to form hinge point six. The other end of the outer rotating part is hinged to the fixed plate to form hinge point seven. The fixed plate and the outer rotating part are located on both sides of the insert support. The lower part of the insert support is provided with a V-groove, and hinge point seven is located in the V-groove.

[0016] The front end of the connecting rod is hinged to the top corner of the rotating main plate to form hinge point eight.

[0017] Therefore, rotating the backrest frame backward causes the lower part of the insert support to rotate forward along the arc track. When the insert support rotates, it rotates around the hinge point seven through its V-groove. The inner and outer rotating parts rotate, and the inner rotating part moves forward along the arc track. The inner rotating part pushes the connecting rod forward, causing the top corner of the rotating main board to rotate downward. The connecting rod telescopic assembly is pushed out and unfolded, causing the tray to gradually rotate from a vertical state to a horizontal state. This rear rotation drive mechanism has few components and is easy to assemble.

[0018] In some embodiments, the connecting rod includes a front rod portion and a rear rod portion, with the front rod portion being higher than the rear rod portion. The inner rotating member is arc-shaped, and when the connecting rod telescopic assembly retracts, the arc-shaped opening of the inner rotating member faces the side where the backrest frame is located.

[0019] In some embodiments, snap-fit ​​connectors are provided on both sides of the backrest frame, which are inserted into the upper part of the insert support. Thus, after the rear-rotating backrest frame is installed on the left or right armrest, the rear rotation drive mechanism and the front rotation mechanism are connected by a connecting rod, and the backrest frame is inserted into the insert support using the snap-fit ​​connectors, making assembly simple.

[0020] In some embodiments, the linkage telescopic assembly includes linkage 1, linkage 2, linkage 3, linkage 4, and linkage 5. The upper end of linkage 1 is hinged to the fixing member to form hinge point 3. The lower end of linkage 1 is hinged to the lower end of linkage 2. The upper end of linkage 2 is hinged to one end of the support plate. Links 3, 4, and 5 are hinged sequentially. The lower end of linkage 3 is hinged to the bottom corner of the rotating main plate to form hinge point 2. The upper end of linkage 5 is hinged to the other end of the support plate. The body of linkage 1 is hinged to the body of linkage 3 to form hinge point 9. The body of linkage 2 is hinged to the body of linkage 4 to form hinge point 10. Thus, as the top corner of the rotating main plate rotates downward, one bottom corner of the rotating main plate (i.e., hinge point 2) gradually extends forward, acting sequentially on hinge points 9 and 10, causing the support plate to flip.

[0021] In some embodiments, a front tube is provided between the rotating main plates of the two front rotating mechanisms, and a rear tube is provided between the left and right armrests. A telescopic rod is provided between the front and rear tubes. Thus, the synchronous movement of the two side plates can be achieved through the telescopic rod. When the telescopic rod extends, it pushes the rotating main plate to rotate, thereby driving the inner rotating component through the connecting rod, and indirectly driving the rotation of the insert support and the backrest frame.

[0022] In some implementations, the telescopic rod is an electric actuator or a pneumatic rod. Thus, if an electric actuator is used, the telescopic rod can be automatically extended or retracted via electric control or remote control to drive the backrest frame and tray to unfold; if a pneumatic rod is used, the backrest frame and tray can be manually unfolded by actively moving the backrest frame.

[0023] In some implementations, backrest extension frames are provided on both the left and right sides of the backrest frame. This satisfies the need for a wider backrest and improves product comfort.

[0024] In some implementations, the rotating mainboard is provided with weight-reduction holes. This reduces the weight of the rotating mainboard, saving on transportation and production costs.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This utility model features an ingenious structural design, employing an assembly-type structure divided into five parts: left armrest, right armrest, backrest frame, front rotating mechanism, and rear rotating drive mechanism, simplifying the structure of the movable sofa frame. This movable sofa frame allows for the transport of individual components without assembly, reducing transport volume and significantly lowering transportation costs compared to traditional integrated frame transport.

[0027] Both the front rotating mechanism and the rear rotating drive mechanism are assembled from multiple parts. The parts can be provided directly to the user for self-assembly, or the front rotating mechanism and the rear rotating drive mechanism can be pre-assembled before shipment according to the user's needs. Since these two parts are assembled into a sheet structure, they occupy a small area and will not increase the transportation space too much.

[0028] Assembling this sofa frame is straightforward. First, install the front swivel mechanism onto the left and right armrests, then install the rear swivel drive mechanism onto the left and right armrests. Connect the front and rear swivel drive mechanisms using connecting rods. Connect the left and right armrests symmetrically. Insert the backrest frame into the rear swivel drive mechanism, and finally install the telescopic rod. Users can assemble it themselves and experience the fun of self-assembly. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the external appearance of one embodiment of a self-assembly movable sofa frame assembly according to the present invention;

[0030] Figure 2 This is a schematic diagram of the self-assembly movable sofa frame assembly of this utility model in its unfolded state;

[0031] Figure 3 This is a schematic diagram of the unfolded state of the self-assembly movable sofa frame assembly of this utility model;

[0032] Figure 4 This is an exploded view of the rear rotary drive mechanism. Detailed Implementation

[0033] The present invention will be further described below with reference to specific embodiments.

[0034] like Figure 1As shown, a self-assembly movable sofa frame assembly according to one embodiment of the present invention includes a left armrest 1 and a right armrest 2 arranged symmetrically, a backrest frame 3 located between the left armrest 1 and the right armrest 2, a pair of front rotation mechanisms located in front of the left and right armrests (1, 2), and a pair of rear rotation drive mechanisms located behind the left and right armrests (1, 2).

[0035] like Figure 1 and 2 As shown, the front rotating mechanism includes a fixing member 41, a rotating main plate 42, a connecting rod telescopic assembly 43, and a support plate 44. The support plate 44 is installed at the front end of the connecting rod telescopic assembly 43. The main body of the fixing member 41 is a triangular structure, and the upper part of the fixing member 41 is fixed to the left armrest 1 or the right armrest 2 by screws. The rotating main plate 42 is triangular in shape. One bottom corner of the rotating main plate 42 is hinged to the fixing member 41 to form hinge point one 101. The other bottom corner of the rotating main plate 42 is hinged to one side of the rear end of the connecting rod telescopic assembly 43 to form hinge point two 102. The other side of the rear end of the connecting rod telescopic assembly 43 is hinged to the fixing member 41 to form hinge point three 103. Hinge point three 103 is located diagonally above hinge point one 101.

[0036] The linkage telescopic assembly 43 specifically includes linkage 1 431, linkage 2 432, linkage 3 433, linkage 434, and linkage 5 435. The upper end of linkage 1 431 is hinged to the fixing member 41, forming hinge point 3 103. The lower end of linkage 1 431 is hinged to the lower end of linkage 2 432, and the upper end of linkage 2 432 is hinged to one end of the support plate 44. Links 3 433, 434, and 5 435 are hinged sequentially. The lower end of linkage 3 433 is hinged to the bottom corner of the rotating main plate 42, forming hinge point 2 102, and the upper end of linkage 5 435 is hinged to the other end of the support plate 44. The shaft of linkage 1 431 is hinged to the shaft of linkage 3 433, forming hinge point 9 109. The shaft of linkage 2 432 is hinged to the shaft of linkage 4, forming hinge point 10 110.

[0037] The rotating motherboard 42 has a weight-reduction hole 421, which can reduce the weight of the rotating motherboard 42 and save transportation and production costs.

[0038] The rear end of the rear rotation drive mechanism is connected to the backrest frame 3, and the front end of the rear rotation drive mechanism is hinged to the top corner of the rotating main board 42.

[0039] Specifically, such as Figure 1 and 4As shown, the rear rotation drive mechanism includes a fixed plate 51, a insert support 52, an inner rotating component 53, an outer rotating component 54, and a connecting rod 55. The fixed plate 51 is fixedly installed on the left armrest 1 or the right armrest 2 by screws. An arc-shaped track 511 is provided on the fixed plate 51, and the arc-shaped track 511 has a structure that is higher at the back and lower at the front. The two sides of the backrest frame 3 are fixedly connected to the snap-fit ​​components 31 by screws. The snap-fit ​​components 31 have a plug-in interface (not shown in the figure). The upper part of the insert support 52 can be adapted to the plug-in interface of the snap-fit ​​component 31. The lower front end of the insert support 52 is hinged to the fixed plate 51 to form a hinge point four 104. The lower rear end of the insert support 52 is hinged to one end of the inner rotating component 53 to form a hinge point five 105. The hinge point five 105 can be slidably embedded in the arc-shaped track 511. The other end of the inner rotating component 53 is hinged to one end of the outer rotating component 54 and the rear end of the connecting rod 55 to form a hinge point six 106. The other end of the outer rotating component 54 is hinged to the fixed plate 51 to form hinge point seven 107. The position of hinge point seven 107 is located behind the position of hinge point four 104. The fixed plate 51 and the outer rotating component 54 are located on both sides of the insert support 52. The lower part of the insert support 52 has a V-groove 521, and hinge point seven 107 is located in the V-groove 521. The front end of the connecting rod 55 is hinged to the top corner of the rotating main plate 42 to form hinge point eight 108.

[0040] like Figure 2 As shown, the connecting rod 55 includes a front rod portion 551 and a rear rod portion 552, with the front rod portion 551 being higher than the rear rod portion 552. The front end of the front rod portion 551 is hinged to the top corner of the rotating main plate 42 to form a hinge point 8108, and the rear end of the rear rod portion 552 is hinged to the inner rotating member 53 and the outer rotating member 54 to form a hinge point 6106.

[0041] The inner rotating part 53 is arc-shaped. When the connecting rod telescopic assembly 43 retracts, the arc-shaped opening 531 of the inner rotating part 53 faces the side where the backrest frame 3 is located.

[0042] A front tube 6 is connected to the rotating main plate 42 of the two front rotating mechanisms by screws. A rear tube 7 is connected to the left armrest 1 and the right armrest 2 by screws. A telescopic rod 8 is installed between the front tube 6 and the rear tube 7.

[0043] The telescopic rod 8 enables the synchronous movement of the two side plates 44. When the telescopic rod 8 extends, it pushes the rotating main plate 42 to rotate, thereby driving the inner rotating part 53 through the connecting rod 55, and indirectly driving the rotation of the insert support 52 and the backrest frame 3.

[0044] The telescopic rod 8 can be an electric actuator or a pneumatic rod. Preferably, the telescopic rod 8 is an electric actuator, which can be controlled electrically or remotely to extend and retract autonomously, thereby driving the backrest frame 3 and the support plate 44 to unfold. Alternatively, a pneumatic rod can be used, allowing manual unfolding of the backrest frame 3 and the support plate 44 by actively moving the backrest frame 3.

[0045] Backrest extension frames are installed on the left and right sides of the backrest frame 3 with screws to meet the need for a wider backrest and improve product comfort.

[0046] Combination Figure 2 and Figure 3 The working process of the movable sofa frame components is explained as follows:

[0047] The working process of the movable sofa frame assembly using electric actuators: The telescopic rod 8 extends, pushing the rotating main plate 42 to rotate around hinge point 101, causing the top corner of the rotating main plate 42 to rotate downwards. Hinge point 2 102 on the rotating main plate 42 gradually extends forward. Connecting rod 1 431 and connecting rod 3 433 rotate around hinge point 3 103 and hinge point 2 102 respectively, acting on hinge point 9 109 and hinge point 10 110 in sequence, causing the support plate 44 to flip from a vertical state to a horizontal state. At the same time, through the connecting rod 55, the outer rotating part 54 and the inner rotating part 53 are pulled, causing the lower part of the insert support 52 to rotate forward along the arc track 511. When the insert support 52 rotates, it rotates around hinge point 7 107 through its V-groove 521. The upper part of the insert support 52 rotates backwards, causing the backrest frame 3 to rotate backwards.

[0048] The working process of the movable sofa frame assembly using a gas spring is as follows: When the backrest frame 3 is rotated backward, the upper part of the insert support 52 rotates backward, and the lower part of the insert support 52 rotates forward along the arc track 511. When the insert support 52 rotates, it rotates around the hinge point 7 107 through its V-groove 521. The inner rotating part 53 and the outer rotating part 54 rotate, and the inner rotating part 53 moves forward along the arc track 511. The inner rotating part 53 pushes the connecting rod 55 forward, causing the top corner of the rotating main plate 42 to rotate downward. The hinge point 2 102 on the rotating main plate 42 gradually extends forward. The connecting rod 1 431 and the connecting rod 3 433 rotate around the hinge point 3 103 and the hinge point 2 102, respectively, and act on the hinge point 9 109 and the hinge point 110 in sequence, so that the support plate 44 can be flipped, and the support plate 44 gradually rotates from the vertical state to the horizontal state.

[0049] This utility model provides a simplified self-assembly movable sofa frame component with an assembly-type structure, consisting of five parts: left armrest 1, right armrest 2, backrest frame 3, front rotation mechanism, and rear rotation drive mechanism. The movable sofa frame can be transported unassembled, with the individual components packaged together. The front rotation mechanism and rear rotation drive mechanism can be provided to the user for self-assembly, or they can be pre-assembled before shipment according to user needs. Since these two parts form a sheet-like structure after assembly, they occupy a small area and do not significantly increase transportation space. Compared to traditional integral frames, this new frame structure eliminates the need for assembly before transportation, reducing transportation volume and significantly lowering shipping costs.

[0050] After receiving the parts, users can first assemble the front rotating mechanism and the rear rotating drive mechanism, then install the front rotating mechanism and the rear rotating drive mechanism onto the left and right armrests (1, 2), and connect the rear rotating drive mechanism to the front rotating mechanism with the connecting rod 55. Install the front tube 6 between the rotating main plate 42 and the rear tube 7 between the left and right armrests (1, 2), insert the snap-fit ​​part 31 of the backrest frame 3 into the insert support 52, and finally install the telescopic rod 8. The assembly steps of this movable sofa frame component are simple, and users can experience the fun of self-assembly.

[0051] The above descriptions are merely some embodiments of this utility model. It should be noted that those skilled in the art can make other modifications and improvements without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A self-assembling movable sofa frame assembly, characterized in that, include: Left armrest (1) and right armrest (2), the left armrest (1) and right armrest (2) are arranged symmetrically, and a backrest frame (3) is provided between the left armrest (1) and right armrest (2). The front rotating mechanism has a pair and is arranged symmetrically on the left and right. The front rotating mechanism includes a fixing member (41), a rotating main plate (42), a connecting rod telescopic assembly (43) and a support plate (44). The support plate (44) is installed at the front end of the connecting rod telescopic assembly (43). The upper part of the fixing member (41) is fixed to the left handrail (1) / or the right handrail (2). The rotating main plate (42) is triangular in shape. The two bottom corners of the rotating main plate (42) are respectively hinged to the fixing member (41) to form hinge point one (101) and hinged to one side of the rear end of the connecting rod telescopic assembly (43) to form hinge point two (102). The other side of the rear end of the connecting rod telescopic assembly (43) is hinged to the fixing member (41) to form hinge point three (103). The hinge point three (103) is located diagonally above the hinge point one (101). The rear rotation drive mechanism is connected to the backrest frame (3) at its rear end and hinged to the top corner of the rotating main board (42) at its front end. The extension and retraction of the linkage telescopic assembly (43) and the rotation of the backrest frame (3) are achieved by driving the rotating main board (42) to rotate through the rear rotation drive mechanism. When the linkage telescopic assembly (43) extends, the support plate (44) is horizontal, and when the linkage telescopic assembly (43) retracts, the support plate (44) is vertical.

2. The self-assembly movable sofa frame assembly according to claim 1, characterized in that, The rear rotation drive mechanism includes a fixed plate (51), a plate support (52), an inner rotating component (53), an outer rotating component (54), and a connecting rod (55). The fixing plate (51) is installed on the left handrail (1) or the right handrail (2). The fixing plate (51) is provided with an arc-shaped track (511) and has a structure that is higher at the back and lower at the front. The upper part of the insert support (52) is connected to the backrest frame (3), the lower front end of the insert support (52) is hinged to the fixed plate (51) to form hinge point four (104), and the lower rear end of the insert support (52) is hinged to one end of the inner rotating part (53) to form hinge point five (105). Hinge point five (105) can be slidably embedded in the arc track (511). The other end of the inner rotating part (53) is hinged to one end of the outer rotating part (54) and the rear end of the connecting rod (55) to form hinge point six (106). The other end of the outer rotating part (54) is hinged to the fixed plate (51) to form hinge point seven (107). The fixed plate (51) and the outer rotating part (54) are located on both sides of the insert support (52). The lower part of the insert support (52) is provided with a V-groove (521). The hinge point seven (107) is located in the V-groove (521). The front end of the connecting rod (55) is hinged to the top corner of the rotating main plate (42) to form hinge point eight (108).

3. The self-assembly movable sofa frame assembly according to claim 2, characterized in that, The connecting rod (55) includes a front rod part (551) and a rear rod part (552). The front rod part (551) is higher than the rear rod part (552). The inner rotating part (53) is arc-shaped. When the connecting rod telescopic assembly (43) retracts, the arc-shaped opening (531) of the inner rotating part (53) faces the side where the backrest frame (3) is located.

4. The self-assembly movable sofa frame assembly according to claim 3, characterized in that, The backrest frame (3) is provided with snap-fit ​​pieces (31) on both sides, and the snap-fit ​​pieces (31) are inserted into the upper part of the insert support (52).

5. The self-assembly movable sofa frame assembly according to any one of claims 1 to 4, characterized in that, The linkage telescopic assembly (43) includes a first link (431), a second link (432), a third link (433), a fourth link (434), and a fifth link (435). The upper end of the first link (431) is hinged to the fixing member (41) to form a hinge point three (103). The lower end of the first link (431) is hinged to the lower end of the second link (432). The upper end of the second link (432) is hinged to one end of the support plate (44). The third link (433), the fourth link (435), and the fifth link (435) are hinged to the first link (431). (434) and (435) are hinged in sequence. The lower end of (433) is hinged to the bottom corner of (42) of (433) to form hinge point 2 (102). The upper end of (435) is hinged to the other end of (44) of (435). The body of (431) is hinged to the body of (433) to form hinge point 9 (109). The body of (432) is hinged to the body of (434) to form hinge point 10 (110).

6. The self-assembly movable sofa frame assembly according to claim 5, characterized in that, A front tube (6) is provided between the rotating main plates (42) of the two front rotating mechanisms, a rear tube (7) is provided between the left armrest (1) and the right armrest (2), and a telescopic rod (8) is provided between the front tube (6) and the rear tube (7).

7. The self-assembly movable sofa frame assembly according to claim 6, characterized in that, The telescopic rod (8) is an electric actuator or a pneumatic rod.

8. The self-assembly movable sofa frame assembly according to claim 1, characterized in that, The backrest frame (3) is provided with backrest extensions (32) on the left and right sides.

9. The self-assembly movable sofa frame assembly according to claim 1, characterized in that, The rotating main board (42) is provided with a weight reduction hole (421).

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