Modular sofa seat frame

Abstract

The utility model discloses a modularized sofa seat frame which comprises a front plate, a rear plate and two side plates arranged on the left side and the right side between the front plate and the rear plate, and the front plate, the rear plate and the two side plates are all manufactured by adopting a blow molding / extrusion molding process. The left end and the right end of the rear plate are connected with the rear ends of the two side plates through corner connectors respectively, and the inner sides of the two side plates are provided with connecting iron frames used for being connected with handrail inserting pieces in an inserted mode and connected with seat frame hanging buckles in a buckled mode. According to the sofa seat frame, the production difficulty is reduced, the structural design of the sofa seat frame is widened, the design style is more diversified compared with wood, the sofa seat frame can be rapidly manufactured through a mold, the production efficiency is improved, and glue bonding is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of sofas, in particular to a modular sofa seat frame. Background Art

[0002] Sofa is an important part of people's daily life. It is not only an indoor decoration, but also a kind of furniture. Because the sofa is soft and elastic, people often feel very comfortable sitting on it, so many families have sofas. With the development of science and technology and the improvement of people's living standards, furniture companies have invested a lot of manpower and funds to develop sofas that can meet people's growing demand for furniture.

[0003] At present, the existing sofa seat frame is usually made of wood splicing, which leads to the following defects:

[0004] 1. Material limitations: As a natural material, the strength and stability of wood are greatly affected by factors such as environment, humidity and temperature, and it is prone to deformation, cracking and other problems;

[0005] 2. Complex splicing process: Wood splicing requires professional craftsmanship and skills to ensure that the seat frame structure is stable and not easy to loosen after splicing. Glue is needed for bonding during the splicing process, which not only increases the production cost, but also may cause the seat frame to loosen or crack due to aging of the glue after long-term use;

[0006] 3. Limited design diversity: Due to the physical properties and processing limitations of wood, its structural design is often traditional and conservative, which makes it difficult to meet the needs of modern home design for diversity and personalization;

[0007] 4. Low production efficiency: Wood processing requires multiple steps, such as cutting, grinding, splicing, etc. These steps are not only time-consuming and labor-intensive, but also difficult to automate, resulting in low production efficiency; and the use of glue for bonding also increases the production cycle, because it is necessary to wait for the glue to dry and solidify before proceeding to the next step. Utility Model Content

[0008] In order to overcome the problems of material limitation, complex splicing process, limited design diversity and low production efficiency of sofa seat frames in the prior art, the utility model provides a modular sofa seat frame.

[0009] The technical solution of the utility model is as follows:

[0010] A modular sofa seat frame comprises a front panel, a rear panel and two side panels arranged on the left and right sides between the front panel and the rear panel, wherein the front panel, the rear panel and the two side panels are all made by blow molding / extrusion molding process, the left and right ends of the rear panel are respectively connected to the rear ends of the two side panels by angle brackets, and the inner sides of the two side panels are provided with connecting iron frames for plugging with armrest inserts and buckling with seat frame hooks.

[0011] As a preferred solution of the utility model, the top left and right ends of the rear panel are respectively connected to the top rear ends of the two side panels through upper corner codes, and the bottom left and right ends of the rear panel are respectively connected to the bottom rear ends of the two side panels through lower corner codes.

[0012] As a preferred solution of the utility model, the back panel and the two side panels are provided with a plurality of first screw holes matching with the upper corner brackets and a plurality of second screw holes matching with the lower corner brackets, the two right-angled sides of the upper corner bracket are provided with a plurality of third screw holes matching with the first screw holes, and the two right-angled sides of the lower corner bracket are provided with a plurality of fourth screw holes matching with the second screw holes.

[0013] As a preferred solution of the utility model, embedded nuts are embedded in the positions of the rear plate and the two side plates corresponding to each of the first screw holes and the second screw holes.

[0014] As a preferred solution of the utility model, a sofa iron frame is also installed between the two side panels, and the front panel is fixed to the footrest of the sofa iron frame.

[0015] As a preferred solution of the utility model, the connecting iron frame includes a fixing plate for fixing to the side panel, a plurality of hanging parts arranged side by side on one side of the fixing plate for cooperating with the seat frame buckles, and a fixing frame arranged on one side of the fixing plate for fixing the sofa iron frame.

[0016] As a preferred solution of the utility model, the inner upper parts of the two side panels are provided with iron frame mounting slots, the connecting iron frame is fixed on the iron frame mounting slots, and the inner lower parts of the two side panels protrude inward to form a fixed support platform.

[0017] As a preferred solution of the utility model, a plurality of fifth screw holes are provided on the iron frame installation slot, and a plurality of sixth screw holes matching with the fifth screw holes are provided on the fixing plate.

[0018] As a preferred solution of the utility model, the bottom surface of the fixing frame contacts the top surface of the fixed support platform, the side surface of the fixing frame is flush with the side surface of the fixed support platform, the side surface of the fixing frame is provided with a plurality of seventh screw holes matching with the sofa iron frame, and the front and rear ends of the side surface of the fixed support platform are provided with eighth screw holes matching with the sofa iron frame.

[0019] As a preferred solution of the present utility model, a pre-embedded nut is pre-embedded at a position corresponding to each of the fifth screw hole and the eighth screw hole on the side plate.

[0020] As a preferred solution of the utility model, a switch fixing piece for fixing the switch device is provided at the front end of the inner upper part of one of the side plates.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The front panel, back panel and two side panels are all made of blow molding / extrusion technology, which reduces the difficulty of production and expands the structural design of the sofa seat frame. The design style is more diverse than that of wood, and can be quickly made through molds, which increases production efficiency. The seat frame can be quickly spliced ​​through corner codes without glue bonding;

[0023] 2. By means of the connecting iron frames arranged on the two side panels, the seat frame and the armrest or the two seat frames can be quickly spliced ​​together, so that the sofa using the modular sofa seat frame has the function of free combination, and consumers can freely combine and arrange the sofa according to the internal space structure of the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a structural schematic diagram of a modular sofa seat frame after removing the sofa iron frame in one embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of a modular sofa seat frame after the sofa iron frame is installed in one embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of a modular sofa seat frame in an embodiment of the utility model in which the sofa iron frame is extended out of the footrest state;

[0028] Figure 4This is a schematic diagram of the structure of the upper angle code in one embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the lower angle code in one embodiment of the utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the side panel in one embodiment of the utility model;

[0031] Figure 7 It is a structural schematic diagram of a connecting iron frame in one embodiment of the utility model.

[0032] In the figure,

[0033] 1. Front panel; 2. Back panel; 201. First screw hole; 202. Second screw hole; 3. Side panel; 301. Iron frame installation slot; 3011. Fifth screw hole; 302. Fixed support platform; 3021. Eighth screw hole; 4. Connecting iron frame; 401. Fixed plate; 4011. Sixth screw hole; 402. Hanging piece; 403. Plug-in slot; 404. Fixed frame; 4041. Seventh screw hole; 5. Upper angle bracket; 501. Third screw hole; 6. Lower angle bracket; 601. Fourth screw hole; 7. Switch fixing piece; 8. Sofa iron frame. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, it is stated that the embodiments described below are only used to explain the utility model and are not used to limit the utility model.

[0035] It should be noted that the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship in which the application product is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does 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 cannot be understood as a limitation on the present application.

[0036] See also Figures 1 to 3 The present embodiment provides a modular sofa seat frame, comprising a front plate 1, a rear plate 2, two side plates 3 arranged on the left and right sides between the front plate 1 and the rear plate 2, and a sofa iron frame 8 installed between the two side plates 3. The front plate 1, the rear plate 2 and the two side plates 3 are all made by blow molding / extrusion molding process. The front plate 1 is fixed to the footrest of the sofa iron frame 8 by screws, and the left and right ends of the rear plate 2 are respectively connected to the rear ends of the two side plates 3 by angle codes. The inner sides of the two side plates 3 are provided with connecting iron frames 4 for plugging with the armrest insert and buckling with the seat frame hook. When it is necessary to splice the armrest on one side of the modular sofa seat frame, the armrest insert fixed on the armrest is plugged into the connecting iron frame 4 on the side, and the modular sofa seat frame and the armrest can be quickly spliced ​​together. When two modular sofa seat frames need to be spliced ​​together, the modular sofa seat frames are first placed side by side and close together, and then the two adjacent connecting iron frames 4 of the two modular sofa seat frames are buckled together by a seat frame hook, so that the two modular sofa seat frames can be quickly spliced ​​together. It should be noted that, since the footrest of the sofa iron frame 8 can be extended and retracted, the front plate 1 is only fixed to the footrest of the sofa iron frame 8, so that when the footrest of the sofa iron frame 8 is extended, the front plate 1 can be driven to extend synchronously.

[0037] The modular sofa seat frame provided by the utility model is made of a front panel 1, a rear panel 2 and two side panels 3 by a blow molding / extrusion process, which reduces the difficulty of production and broadens the structural design of the sofa seat frame. The design style is more diverse than that of wood and can be quickly made by a mold, which increases production efficiency. The seat frame can be quickly spliced ​​together by corner codes without the need for glue. At the same time, the seat frame and the armrest or two seat frames can be quickly spliced ​​together by a connecting iron frame 4 arranged on the two side panels 3, so that the sofa using the modular sofa seat frame has a free combination function, and consumers can freely combine and arrange the sofa according to the internal space structure of the house.

[0038] See also Figure 1 , Figures 4 to 6 In one embodiment, the tops of the left and right ends of the rear panel 2 are respectively connected to the tops of the rear ends of the two side panels 3 through upper corner brackets 5, and the bottoms of the left and right ends of the rear panel 2 are respectively connected to the bottoms of the rear ends of the two side panels 3 through lower corner brackets 6. The arrangement of the upper corner brackets 5 and the lower corner brackets 6 can form a more uniform force structure, reduce stress concentration at the connection, make the connection between the rear panel 2 and the side panels 3 more stable, and thus improve the stability of the overall structure.

[0039] Specifically, the back plate 2 and the two side plates 3 are provided with a plurality of first screw holes 201 that match the upper angle bracket 5 and a plurality of second screw holes 202 that match the lower angle bracket 6, the two right-angled sides of the upper angle bracket 5 are provided with a plurality of third screw holes 501 that match the first screw holes 201, and the two right-angled sides of the lower angle bracket 6 are provided with a plurality of fourth screw holes 601 that match the second screw holes 202. The third screw holes 501 on the upper angle bracket 5 are provided with screws in conjunction with the first screw holes 201 on the back plate 2 and the two side plates 3, so that the upper angle bracket 5 can be quickly fixed to the back plate 2 and the two side plates 3; the fourth screw holes 601 on the lower angle bracket 6 are provided with screws in conjunction with the second screw holes 202 on the back plate 2 and the two side plates 3, so that the lower angle bracket 6 can be quickly fixed to the back plate 2 and the two side plates 3.

[0040] In one embodiment, embedded nuts are pre-embedded at the positions corresponding to each of the first screw holes 201 and the second screw holes 202 on the back panel 2 and the two side panels 3. The screws pass through the first screw holes 201 and the second screw holes 202 and are connected to the embedded nuts inside, thereby fixing the upper angle code 5 and the lower angle code 6. The embedded nuts can provide more stable connection points, especially in applications that need to withstand greater force or vibration. The threaded cooperation between the embedded nuts and the screws can provide stronger pulling and shearing forces.

[0041] See also Figure 7 In one embodiment, the connecting iron frame 4 includes a fixing plate 401 for fixing with the side plate 3 and a plurality of hooking pieces 402 arranged side by side on one side of the fixing plate 401 for cooperating with the seat frame hook, and the hooking pieces 402 and the fixing plate 401 form a plug-in slot 403 for inserting the armrest insert. The connecting iron frame 4 makes the connection between the armrest and the seat frame simple and quick by setting the fixing plate 401, the hooking piece 402 and the plug-in slot 403; the seat frame and the armrest can be spliced ​​together by inserting the armrest insert on the armrest into the plug-in slot 403, and the two seat frames can be spliced ​​together by connecting the adjacent hooking pieces 402 of the two seat frames through the seat frame hook. It is also convenient to disassemble, which improves the flexibility and reusability of the furniture.

[0042] See also Figure 6 In one embodiment, the upper inner portions of the two side panels 3 are provided with iron frame installation slots 301, the connecting iron frame 4 is fixed on the iron frame installation slots 301, and the lower inner portions of the two side panels 3 protrude inward to form a fixed support platform 302, which is used to support and install the internal structure of the sofa, such as spring pads, fillers, etc. The setting of the iron frame installation slots 301 makes the installation process of the connecting iron frame 4 simpler and faster. Workers only need to put the connecting iron frame 4 into the slots and fix it to complete the assembly. The setting of the fixed support platform 302 provides an additional support area for the seat frame, so that the weight of the sofa is more evenly distributed when it is under load, thereby extending the service life of the sofa.

[0043] See also Figure 6 , Figure 7 In one embodiment, a plurality of fifth screw holes 3011 are provided on the iron frame mounting slot 301, and a plurality of sixth screw holes 4011 matching with the fifth screw holes 3011 are provided on the fixing plate 401. The third screw holes 501 on the iron frame mounting slot 301 and the sixth screw holes 4011 on the fixing plate 401 are matched with screws to quickly fix the connecting iron frame 4 on the iron frame mounting slot 301.

[0044] See also Figure 6 , Figure 7 In one embodiment, the connecting iron frame 4 further includes a fixing frame 404 disposed on one side of the fixing plate 401 for fixing the sofa iron frame 8, the bottom surface of the fixing frame 404 contacts the top surface of the fixing support platform 302, the side surface of the fixing frame 404 is flush with the side surface of the fixing support platform 302, a plurality of seventh screw holes 4041 are provided on the side surface of the fixing frame 404, and the eighth screw holes 3021 are provided on both the front and rear ends of the side surface of the fixing support platform 302, and the seventh screw holes 4041 and the eighth screw holes 3021 are both used to fix the sofa iron frame 8 with screws. Since the eighth screw holes 3021 on the fixing support platform 302 are relatively far apart, the fixing frame 404 can be added to the fixing plate 401 to provide additional support and fixation for the sofa iron frame 8, making the sofa iron frame 8 more stable and firm, reducing quality problems caused by structural looseness or deformation, and improving the overall quality and service life of the sofa.

[0045] In one embodiment, a pre-embedded nut is pre-embedded at each position corresponding to the fifth screw hole 3011 and the eighth screw hole 3021 on the side panel 3. After the screw passes through the fifth screw hole 3011 and the eighth screw hole 3021, it is connected with the internal pre-embedded nut, thereby fixing the iron frame 4 and the internal structure of the sofa. The pre-embedded nut can provide a more stable connection point, especially in applications that need to withstand greater force or vibration, the thread cooperation between the pre-embedded nut and the screw can provide stronger pulling force and shearing force.

[0046] See also Figure 1 In one embodiment, a switch fixing member 7 for fixing a switch device is disposed at the front end of the inner upper portion of one of the side panels 3. The switch fixing member 7 is disposed at the front end of the inner upper portion of the side panel 3, so that the switch device can be hidden, making it more neat and beautiful, and convenient for users to operate the switch.

[0047] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0048] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A modular sofa seat frame, comprising a front plate, a rear plate, and two side plates arranged on the left and right sides between the front plate and the rear plate, characterized in that: The front panel, the rear panel and the two side panels are all made by blow molding / extrusion technology. The left and right ends of the rear panel are respectively connected to the rear ends of the two side panels through angle codes. The inner sides of the two side panels are provided with connecting iron frames for plugging with the armrest inserts and buckling with the seat frame buckles.

2. The modular sofa seat frame according to claim 1, characterized in that: The tops of the left and right ends of the rear panel are respectively connected to the tops of the rear ends of the two side panels through upper corner brackets, and the bottoms of the left and right ends of the rear panel are respectively connected to the bottoms of the rear ends of the two side panels through lower corner brackets.

3. The modular sofa seat frame according to claim 2, characterized in that: The back panel and the two side panels are each provided with a plurality of first screw holes matching with the upper angle bracket and a plurality of second screw holes matching with the lower angle bracket, the two right-angled sides of the upper angle bracket are each provided with a plurality of third screw holes matching with the first screw holes, and the two right-angled sides of the lower angle bracket are each provided with a plurality of fourth screw holes matching with the second screw holes.

4. The modular sofa seat frame according to claim 3, characterized in that: Embedded nuts are pre-embedded at positions corresponding to each of the first screw holes and the second screw holes on the rear plate and the two side plates.

5. The modular sofa seat frame according to claim 1, characterized in that: A sofa iron frame is also installed between the two side panels, and the front panel is fixed to the footrest of the sofa iron frame.

6. The modular sofa seat frame according to claim 5, characterized in that: The connecting iron frame includes a fixing plate for fixing with the side panel, a plurality of hanging parts arranged side by side on one side of the fixing plate for cooperating with the seat frame hooks, and a fixing frame arranged on one side of the fixing plate for fixing the sofa iron frame, and the hanging parts and the fixing plate form a plug-in groove for inserting the armrest plug-in.

7. The modular sofa seat frame according to claim 6, characterized in that: The inner upper parts of the two side panels are both provided with iron frame installation slots, the connecting iron frame is fixed on the iron frame installation slots, and the inner lower parts of the two side panels protrude inwards to form a fixed support platform.

8. The modular sofa seat frame according to claim 7, characterized in that: A plurality of fifth screw holes are provided on the iron frame installation slot, and a plurality of sixth screw holes matching with the fifth screw holes are provided on the fixing plate.

9. The modular sofa seat frame according to claim 7, characterized in that: The bottom surface of the fixing frame contacts the top surface of the fixing support platform, the side surface of the fixing frame is flush with the side surface of the fixing support platform, the side surface of the fixing frame is provided with a plurality of seventh screw holes matching with the sofa iron frame, and the front and rear ends of the side surface of the fixing support platform are provided with eighth screw holes matching with the sofa iron frame.

10. The modular sofa seat frame according to claim 1, characterized in that: A switch fixing piece for fixing a switch device is arranged at the front end of the inner upper part of one of the side plates.

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