Modularized assembled sofa with environmental protection function

Abstract

The utility model relates to the technical field of sofas, and discloses an environment-friendly modularized assembled sofa which comprises an outer frame, an inner frame and a seat cushion, the inner frame is fixedly mounted in the outer frame, the seat cushion is adhered to the upper end of the inner frame, the seat cushion comprises a fabric layer, first filler and a first air bag, and the first air bag is arranged in the inner frame. The lower end of the fabric layer adheres to the upper end face of the outer frame, and a first filler is arranged in the fabric layer. The first air bag extrudes the first filler to abut against the inner wall of the fabric layer, so that the sponge is fixed, a user does not feel uncomfortable when sitting on the fabric layer due to the fact that the first air bag is high in plasticity, and the first filler is fixed through cooperation of the first air bag and the fabric layer, so that the user feels comfortable when sitting on the fabric layer. The filler is not fixed through glue, the overall environment-friendly performance is improved, psychological worries of consumers are eliminated, and the buying desire of the consumers is improved.

Description

Technical Field

[0001] This utility model relates to the field of sofa technology, specifically to an environmentally friendly modular assembly sofa. Background Technology

[0002] A sofa is a multi-seat chair with cushions, a backrest with springs or thick foam, and armrests on both sides. It is a type of soft furnishing furniture. Sofas can be classified according to function into functional sofas, fixed-back sofas, infinitely adjustable sofas, pneumatic sofas, electric sofas, and sofas with built-in TVs.

[0003] Existing sofa fillings generally use sponge. To further improve seating comfort, multiple sponge pieces are often combined. Because individual sponges are relatively thin, multiple sponges can misalign during use. Although environmentally friendly plant-based hot melt adhesives are used to bond them together, consumers are still concerned about safety hazards associated with adhesive bonding. Furthermore, over time, sponges oxidize and weather, causing the adhesive bonding between the sponges to lose its bonding strength, resulting in misalignment of the sponges during use and affecting usability. Utility Model Content

[0004] This utility model provides an environmentally friendly modular assembly sofa, which has the beneficial effects of being environmentally friendly and having a good assembly and fixing effect. It solves the problem mentioned in the background art that consumers are still worried about safety hazards when using adhesive bonding. Secondly, due to long-term use, the sponge will oxidize and weather, which will cause the adhesive connecting the sponges to lose its adhesiveness as the sponge oxidizes and weathers, thus causing the sponges to misalign during use and affecting the use.

[0005] This utility model provides the following technical solution: an environmentally friendly modular assembly sofa, comprising:

[0006] outer frame;

[0007] The inner frame is fixedly installed inside the outer frame;

[0008] A seat cushion, which is adhered to the upper end of the inner frame;

[0009] The seat cushion includes a fabric layer, a first filling material, and a first airbag. The lower end of the fabric layer is adhered to the upper end face of the outer frame. The first filling material is disposed inside the fabric layer. The first airbag is sewn to the inner wall of the fabric layer. The first airbag is used to squeeze the first filling material against the fabric layer.

[0010] As an optional solution for the environmentally friendly modular assembly sofa described in this utility model, the seat cushion further includes a second filling material, a third filling material, and a groove;

[0011] The second filler, the third filler, and the first filler are stacked sequentially inside the fabric layer;

[0012] The second filler, the third filler and the first filler are all provided with grooves at both ends. One end of the first airbag is snapped inside the groove. The second filler, the third filler and the first filler are squeezed by the expansion of the first airbag.

[0013] As an optional solution for the environmentally friendly modular assembly sofa described in this utility model, the seat cushion further includes Velcro straps, which are installed at the lower end of the fabric layer.

[0014] The inner frame includes a wooden frame and a second airbag;

[0015] The wooden frame is fixedly installed inside the outer frame. The second airbag is located at the upper end of the wooden frame. The upper end of the wooden frame is sewn with Velcro. The fabric layer is fixedly installed at the upper end of the second airbag by the Velcro and Velcro fasteners adhering to each other.

[0016] As an optional solution for the environmentally friendly modular assembly sofa described in this utility model, the inner frame further includes channels and ventilation holes;

[0017] The channel is located inside the wooden frame, and one end of the channel is connected to the interior of the second airbag;

[0018] The ventilation hole is located at the upper end of the wooden frame, and the other end of the channel is connected to the interior of the ventilation hole;

[0019] The lower end of the first airbag is equipped with a cannula that penetrates the fabric layer and extends to the lower end face of the fabric layer. The cannula is used to insert into the interior of the ventilation hole.

[0020] As an optional solution for the environmentally friendly modular assembly sofa described in this utility model, wherein: the inside of the insertion tube is equipped with a ventilation component for controlling gas flow;

[0021] The ventilation component includes a return spring, a first chamber, a second chamber, and a piston;

[0022] The first cavity and the second cavity are sequentially arranged inside the cannula, and the first cavity and the second cavity are connected. The inner diameter of the first cavity is smaller than the inner diameter of the second cavity.

[0023] The piston is slidably connected inside the first cavity, and the diameter of the piston is adapted to the inner diameter of the first cavity. One end of the return spring is installed on the inner wall of the insertion tube, and the other end of the return spring is connected to one end of the piston. The return spring is used to push the piston to slide.

[0024] As an optional solution for the environmentally friendly modular assembly sofa described in this utility model, the ventilation component further includes a limiting rod and a through hole, the through hole being located at the axis of the piston and penetrating the piston;

[0025] The limiting rod is installed inside the insertion tube, and the limiting rod passes through the through hole. The diameter of the limiting rod is smaller than the inner diameter of the through hole.

[0026] As an optional solution for the environmentally friendly modular assembly sofa described in this utility model, the first filling material is memory foam;

[0027] The second filling material is violet sponge;

[0028] The third filler is made of 45D sponge.

[0029] This utility model has the following beneficial effects:

[0030] 1. This environmentally friendly modular assembly sofa uses an inflatable first airbag to press against the first filling material. The inflated airbag then presses against the inner wall of the fabric layer, thus securing the foam. Because the first airbag is highly malleable, users will not feel uncomfortable when sitting on the fabric layer. The first airbag and the fabric layer work together to secure the first filling material, eliminating the need for glue. This improves the overall environmental performance, eliminates consumer concerns, and increases consumer purchasing desire.

[0031] 2. This environmentally friendly modular sofa features Velcro closures sewn onto the lower end of the fabric layer and Velcro closures sewn onto the upper end of the second airbag. When assembling the sofa, the inner frame is fixed to the inner wall of the outer frame with screws, and then the Velcro closures are aligned with the Velcro closures to adhere to each other, allowing the seat cushions to be quickly installed on the inner frame. When the user needs to adjust the seating comfort, a seat cushion of different firmness is attached to the second airbag, thus achieving modular assembly. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0033] Figure 2 This is a schematic diagram of the structure of the seat cushion of this utility model.

[0034] Figure 3 This is a schematic diagram of the structure of the seat cushion and inner frame of this utility model.

[0035] Figure 4 This is a schematic diagram of the seat cushion structure from below.

[0036] Figure 5 This is a schematic diagram of the ventilation component of this utility model.

[0037] In the diagram: 1. Outer frame; 2. Seat cushion; 3. Inner frame; 4. Ventilation component; 21. Fabric layer; 22. First filling material; 23. Second filling material; 24. Third filling material; 25. Groove; 26. First airbag; 27. Insertion tube; 28. Velcro; 31. Wooden frame; 32. Second airbag; 33. Vent hole; 41. Return spring; 42. Through hole; 43. First cavity; 44. Second cavity; 45. Limiting rod; 46. Piston. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Example 1

[0040] Please see Figures 1-2 One type of environmentally friendly modular sofa includes:

[0041] Outer frame 1;

[0042] Inner frame 3 is fixedly installed inside outer frame 1;

[0043] Seat cushion 2 is attached to the upper end of the inner frame 3;

[0044] The seat cushion 2 includes a fabric layer 21, a first filling material 22, and a first airbag 26. The lower end of the fabric layer 21 is attached to the upper end face of the outer frame 1. The first filling material 22 is disposed inside the fabric layer 21. The first airbag 26 is sewn to the inner wall of the fabric layer 21. The first airbag 26 is used to squeeze the first filling material 22 against the fabric layer 21.

[0045] Existing sofa fillings generally use sponge. To further improve the seating comfort, multiple sponge pieces are combined. Because individual sponges are relatively thin, multiple sponges may misalign during use. Although environmentally friendly plant-based hot melt adhesives are used to bond them together, consumers are still concerned about safety hazards due to the use of adhesives. Secondly, as the sponge is used for a long time, it will oxidize and weather, causing the adhesive connecting the sponges to lose its adhesiveness as the sponge oxidizes and weathers, resulting in the sponges misaligning during use and affecting the use of the sofa.

[0046] according to Figure 1 and Figure 2 As shown, the first airbag 26 is sewn to the inner wall of the fabric layer 21. Then, the first filling material 22 is stuffed into the interior of the fabric layer 21. By inflating the first airbag 26, the inflated first airbag 26 presses against the first filling material 22, thereby squeezing the first filling material 22 against the inner wall of the fabric layer 21. This fixes the sponge in place. Because the first airbag 26 is highly malleable, the user will not feel uncomfortable when sitting on the fabric layer 21. Thus, the first filling material 22 is fixed by the cooperation between the first airbag 26 and the fabric layer 21, achieving the goal of fixing the filling material without using glue, improving the overall environmental performance, eliminating consumers' psychological concerns, and increasing consumers' desire to buy.

[0047] Example 2

[0048] This embodiment is an improvement upon Embodiment 1. For details, please refer to [link / reference]. Figures 1-3 The seat cushion 2 also includes a second filling material 23, a third filling material 24, and a groove 25;

[0049] The second filler 23, the third filler 24 and the first filler 22 are stacked sequentially inside the fabric layer 21;

[0050] The second filler 23, the third filler 24 and the first filler 22 are all provided with grooves 25 at both ends. One end of the first airbag 26 is snapped inside the groove 25. The first airbag 26 expands and squeezes the second filler 23, the third filler 24 and the first filler 22.

[0051] according to Figure 2 As shown, in order to further improve the sitting comfort of the seat cushion 2, a second filling material 23, a third filling material 24 and a groove 25 are filled inside the fabric layer 21;

[0052] The first filling material 22 is memory foam;

[0053] The material of the second filling material 23 is violet sponge;

[0054] The third filling material 24 is 45D sponge;

[0055] like Figure 3 As shown, several grooves 25 are provided at both ends of the first filler 22, the second filler 23 and the third filler 24, and each groove 25 corresponds to a first airbag 26. Therefore, the first filler 22, the second filler 23 and the third filler 24 are squeezed against each other by the inflated first airbag 26, thereby fixing the first filler 22, the second filler 23 and the third filler 24.

[0056] Example 3

[0057] This embodiment is an improvement upon embodiment 2. For details, please refer to [link / reference]. Figures 1-4 The seat cushion 2 also includes Velcro 28, which is installed on the lower end of the fabric layer 21;

[0058] The inner frame 3 includes a wooden frame 31 and a second airbag 32;

[0059] The wooden frame 31 is fixedly installed inside the outer frame 1. The second airbag 32 is located at the upper end of the wooden frame 31. The upper end of the wooden frame 31 is sewn with a Velcro closure. The fabric layer 21 is fixedly installed at the upper end of the second airbag 32 by the Velcro closure 28 and the Velcro closure being bonded to each other.

[0060] according to Figure 4 As shown, by sewing the Velcro 28 to the lower end of the fabric layer 21 and sewing the Velcro nut to the upper end of the second airbag 32, when the sofa needs to be assembled, the inner frame 3 is fixed to the inner wall of the outer frame 1 with screws, and then the Velcro 28 is aligned with the Velcro nut so that the Velcro 28 and the Velcro nut stick together, thereby enabling the seat cushion 2 to be quickly installed on the inner frame 3.

[0061] It should be noted that when the user needs to adjust the seating comfort, a seat cushion 2 of different hardness is attached to the second airbag 32 to achieve modular assembly.

[0062] Example 4

[0063] This embodiment is an improvement upon embodiment 3. For details, please refer to [link / reference]. Figures 1-5 The inner frame 3 also includes channels and vents 33;

[0064] The passage is located inside the wooden frame 31, and one end of the passage is connected to the interior of the second airbag 32.

[0065] Ventilation hole 33 is located at the upper end of the wooden frame 31, and the other end of the channel is connected to the interior of ventilation hole 33;

[0066] The lower end of the first airbag 26 is equipped with a cannula 27, which penetrates the fabric layer 21 and extends to the lower end face of the fabric layer 21. The cannula 27 is used to insert into the interior of the vent 33.

[0067] according to Figure 3 and Figure 4 As shown, in order to improve the fixing effect between the seat cushion 2 and the inner frame 3, an insertion tube 27 is provided at the lower end of the fabric layer 21 and a ventilation hole 33 is provided at the upper end of the wooden frame 31. When the Velcro 28 is attached to the Velcro nut, the insertion tube 27 is inserted into the ventilation hole 33 to limit the left, right and front and back positions of the fabric layer 21 on the inner frame 3, thereby further improving the adhesion strength of the fabric layer 21 on the wooden frame 31.

[0068] The cannula 27 is equipped with a venting component 4 for controlling gas flow;

[0069] Ventilation component 4 includes a return spring 41, a first chamber 43, a second chamber 44, and a piston 46;

[0070] The first cavity 43 and the second cavity 44 are sequentially arranged inside the insertion tube 27, and the first cavity 43 and the second cavity 44 are connected. The inner diameter of the first cavity 43 is smaller than the inner diameter of the second cavity 44.

[0071] The piston 46 is slidably connected inside the first cavity 43. The diameter of the piston 46 is adapted to the inner diameter of the first cavity 43. One end of the return spring 41 is installed on the inner wall of the insertion tube 27, and the other end of the return spring 41 is connected to one end of the piston 46. The return spring 41 is used to push the piston 46 to slide.

[0072] The ventilation component 4 also includes a limiting rod 45 and a through hole 42. The through hole 42 is located at the axis of the piston 46 and passes through the piston 46.

[0073] The limiting rod 45 is installed inside the insertion tube 27. The limiting rod 45 passes through the through hole 42, and the diameter of the limiting rod 45 is smaller than the inner diameter of the through hole 42.

[0074] When the inflated first airbag 26 clamps the first filler 22, the second filler 23 and the third filler 24, the sponge will oxidize and weather after long-term use. Therefore, the weathered sponge may detach from the clamping of the first airbag 26, so the first airbag 26 needs to be adjusted continuously.

[0075] according to Figure 5 As shown, the second airbag 32 is filled with air. When a person sits on the fabric layer 21, the fabric layer 21 transmits gravity to the second airbag 32, thereby compressing the second airbag 32. This allows the air in the second airbag 32 to enter the first airbag 26 through the insertion tube 27. This enables the first airbag 26 to hold the first filler 22, the second filler 23, and the third filler 24 when the fabric layer 21 is in use. Furthermore, due to the plasticity of the first airbag 26, it can hold the first filler 22, the second filler 23, and the third filler 24 in different states.

[0076] Preferably, a contraction spring is installed inside the first airbag 26. When the fabric layer 21 is not in use, the contraction spring pulls the first airbag 26 to contract, thereby squeezing the internal air back to the second airbag 32 so that air can be transmitted again through the second airbag 32 next time.

[0077] Preferably, the first airbag 26 is made of rubber, which has elasticity. The elastic potential energy of the first airbag 26 pulls the first airbag 26 to contract and compress the internal air to return to its original position.

[0078] When the user sits up or jumps on the fabric layer 21 repeatedly, the first airbag 26 will contract and expand several times in a short period of time. When the contraction and expansion of the first airbag 26 is not at the same frequency as the user's continuous sitting up or jumping on the fabric layer 21, the first airbag 26 will not be able to limit and fix the first filling material 22, the second filling material 23 and the third filling material 24 when the seat cushion 2 is used. This may cause the first filling material 22, the second filling material 23 and the third filling material 24 to become misaligned, affecting subsequent use.

[0079] Therefore, a ventilation component 4 is installed inside the intubation tube 27, according to... Figure 5 As shown, one end of the first chamber 43 is connected to the vent 33, and one end of the second chamber 44 is connected to the first airbag 26. When the second airbag 32 is compressed, the second airbag 32 transmits air to the first chamber 43. Since the diameter of the vent 42 is small, the air in the first chamber 43 will push the piston 46 to slide to the second chamber 44. The sliding piston 46 will compress the return spring 41, so that a large amount of air flows into the second chamber 44 from the gap between the piston 46 and the insertion tube 27. The air is transmitted to the first airbag 26 through the second chamber 44, so that the first airbag 26 fixes the sponge. At this time, the return spring 41 releases elastic potential energy to push the piston 46 to return to the first chamber 43.

[0080] Subsequently, when the user sits up or jumps repeatedly on the seat cushion 2, affecting the air pressure at the first airbag 26, the air at the second cavity 44 can only flow to the first cavity 43 through the through hole 42. However, due to the small diameter of the through hole 42, the airflow is limited, allowing the first airbag 26 to compress the first filling material 22, the second filling material 23, and the third filling material 24 for a long time. This prevents the first airbag 26 from prematurely contracting and failing to compress the first filling material 22, the second filling material 23, and the third filling material 24. In this way, when the user sits up or jumps repeatedly on the fabric layer 21, the first airbag 26 can fix the first filling material 22, the second filling material 23, and the third filling material 24 so that they do not shift or become misaligned.

[0081] It should be noted that when the user sits on the fabric layer 21, the first airbag 26 will be compressed. However, due to the limited airflow through the through hole 42, the first airbag 26 will still hold the first filling material 22, the second filling material 23 and the third filling material 24 for a long time. Furthermore, when the user sits on the fabric layer 21, the first filling material 22, the second filling material 23 and the third filling material 24 will not be displaced or misaligned.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0083] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An environmentally friendly modular assembly sofa, characterized in that, include: Outer frame (1); The inner frame (3) is fixedly installed inside the outer frame (1); Seat cushion (2), said seat cushion (2) is adhered to the upper end of the inner frame (3); The seat cushion (2) includes a fabric layer (21), a first filling material (22) and a first airbag (26), with the lower end of the fabric layer (21) adhered to the upper end surface of the outer frame (1); The fabric layer (21) is provided with a first filler (22) inside, and the first airbag (26) is sewn to the inner wall of the fabric layer (21). The first airbag (26) is used to squeeze the first filler (22) against the fabric layer (21).

2. The environmentally friendly modular assembly sofa according to claim 1, characterized in that: The seat cushion (2) also includes a second filling material (23), a third filling material (24), and a groove (25); The second filler (23), the third filler (24) and the first filler (22) are stacked sequentially inside the fabric layer (21); The second filler (23), the third filler (24) and the first filler (22) are provided with grooves (25) at both ends. One end of the first airbag (26) is snapped inside the groove (25). The second filler (23), the third filler (24) and the first filler (22) are squeezed by the expansion of the first airbag (26).

3. The environmentally friendly modular assembly sofa according to claim 1, characterized in that: The seat cushion (2) also includes Velcro (28), which is installed at the lower end of the fabric layer (21); The inner frame (3) includes a wooden frame (31) and a second airbag (32); The wooden frame (31) is fixedly installed inside the outer frame (1). The second airbag (32) is set at the upper end of the wooden frame (31). The upper end of the wooden frame (31) is sewn with a Velcro closure. The fabric layer (21) is fixedly installed at the upper end of the second airbag (32) by the Velcro closure (28) and the Velcro closure adhering to each other.

4. The environmentally friendly modular assembly sofa according to claim 3, characterized in that: The inner frame (3) also includes channels and ventilation holes (33); The channel is located inside the wooden frame (31), and one end of the channel is connected to the inside of the second airbag (32); The ventilation hole (33) is located at the upper end of the wooden frame (31), and the other end of the channel is connected to the interior of the ventilation hole (33); The lower end of the first airbag (26) is equipped with a cannula (27), which penetrates the fabric layer (21) and extends to the lower end face of the fabric layer (21). The cannula (27) is used to insert into the interior of the ventilation hole (33).

5. The environmentally friendly modular assembly sofa according to claim 4, characterized in that: The cannula (27) is equipped with a ventilation component (4) for controlling gas flow. The ventilation component (4) includes a return spring (41), a first chamber (43), a second chamber (44), and a piston (46). The first cavity (43) and the second cavity (44) are sequentially arranged inside the cannula (27), and the first cavity (43) and the second cavity (44) are connected. The inner diameter of the first cavity (43) is smaller than the inner diameter of the second cavity (44). The piston (46) is slidably connected inside the first cavity (43). The diameter of the piston (46) is adapted to the inner diameter of the first cavity (43). One end of the return spring (41) is installed on the inner wall of the insertion tube (27), and the other end of the return spring (41) is connected to one end of the piston (46). The return spring (41) is used to push the piston (46) to slide.

6. The environmentally friendly modular assembly sofa according to claim 5, characterized in that: The ventilation component (4) also includes a limiting rod (45) and a through hole (42), the through hole (42) being located at the axis of the piston (46) and penetrating the piston (46). The limiting rod (45) is installed inside the insertion tube (27), and the limiting rod (45) passes through the through hole (42). The diameter of the limiting rod (45) is smaller than the inner diameter of the through hole (42).

7. The environmentally friendly modular assembly sofa according to claim 2, characterized in that: The first filler (22) is made of memory foam; The material of the second filler (23) is violet sponge; The third filler (24) is made of 45D sponge.

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