A high-strength inflatable sofa and production process

Abstract

The invention discloses a high-strength inflatable sofa and a production process. The inflatable sofa comprises a sofa body, an inflatable seat cushion, an inflatable back cushion, and a sofa leg; the inflatable seat cushion and the inflatable back cushion are both arranged on the upper part of the sofa body, and the sofa leg is arranged on the bottom of the sofa body; the sofa body, the inflatable seat cushion, and the inflatable back cushion are all made of an integrated brushed air cushion; the outer edge of the brushed air cushion is sealed by a mesh cloth; the production process of the inflatable sofa completes the production of the inflatable sofa through multiple steps. The inflatable sofa of the invention is suitable for outdoor furniture, exhibitions, and indoor use. It has a wide range of uses and superior performance. Compared with traditional furniture, it has the advantages of light weight, good air tightness, high comfort, and long service life. At the same time, it is very convenient to store, easy to pack, transport, and carry.

Description

Technical Field

[0001] The invention relates to a sofa and a process, in particular to a high-strength inflatable sofa and a production process. Background Art

[0002] As people's living standards continue to improve, people's demands for the comfort and functionality of sofas are getting higher and higher. Existing sofas have the disadvantages of being heavy, difficult to move and carry, and difficult to pack and transport. They are not suitable for outdoor environments, exhibitions, etc. In such environments, the arrangement of the sofa and the removal of the sofa after use are very inconvenient, time-consuming and laborious. In addition, the transportation of existing sofas is very inconvenient. The sofa is heavy, so the transportation process is very laborious. At the same time, because the sofa occupies a large transportation space, transportation equipment is generally required to complete the transportation of the sofa, and the sofa needs to be carefully packaged to avoid bumps and damage to the sofa during transportation. The entire sofa transportation process is cumbersome and laborious, and it is difficult for people to complete it alone. Summary of the invention

[0003] In order to solve the deficiencies existing in the above-mentioned technologies, the present invention provides a high-strength inflatable sofa and a production process.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-strength inflatable sofa, comprising a sofa body, an inflatable seat cushion, an inflatable back cushion, and sofa legs; the inflatable seat cushion and the inflatable back cushion are both arranged on the upper part of the sofa body, and the sofa legs are arranged on the bottom of the sofa body; the sofa body, the inflatable seat cushion, and the inflatable back cushion are all made of an integrated brushed air cushion; the outer edge of the brushed air cushion is sealed by a mesh cloth;

[0005] The sofa body comprises an armrest, a sofa back and a sofa bottom, and the armrest, the sofa back and the sofa bottom are connected as one; there are two armrests, and the two armrests are symmetrically arranged at the left end and the right end of the sofa back; the sofa bottom is arranged at the front end of the sofa back, and the interiors of the sofa back, the sofa bottom and the two armrests are connected to a No. 1 air chamber; the interiors of the inflatable seat cushion and the inflatable back cushion are independent No. 2 air chamber and No. 3 air chamber respectively, and the No. 1 air chamber, the No. 2 air chamber and the No. 3 air chamber are all connected with air nozzles;

[0006] The connection between the armrest, the sofa bottom and the sofa back is sewn with folding seams, and the armrest and the sofa bottom are folded along the folding seams to form the sofa body together with the sofa back;

[0007] The connection between the armrest and the sofa back is provided with a downwardly concave connection arc A, and the connection between the sofa bottom and the sofa back is symmetrically provided with an inwardly concave connection arc B. The setting of the connection arc A and the connection arc B is used to reduce the expansion of the connection between the armrest, the sofa bottom and the sofa back after inflation, so as to facilitate the folding of the armrest and the sofa bottom.

[0008] The sofa leg comprises a downwardly protruding arc plate and a foot base, the upper surface of the arc plate fits with the bottom of the armrest to increase the contact area between the sofa leg and the armrest; the foot base is fixedly arranged at the lower end of the arc plate, and a screw hole is arranged on the foot base to be able to install a metal sofa leg;

[0009] The sofa legs are bonded to the bottom of the armrest or the sofa legs are arranged at the bottom of the armrest through a fixing device;

[0010] The fixing device includes a bottom plate, a spring button, an arc-shaped baffle plate, and a limit block. The bottom plate is a flexible plate. The spring button, the arc-shaped baffle plate, and the limit block are all fixedly arranged on the lower surface of the bottom plate. The spring button is arranged in the middle of the front part of the bottom plate. There are two arc-shaped baffle plates, which are symmetrically arranged on the left side and the right side of the middle part of the bottom plate. There are two limit blocks, which are symmetrically arranged on the left side and the right side of the rear part of the bottom plate.

[0011] The spring button comprises a base, a button and a spring, wherein the spring is arranged inside the base; an opening is arranged at the lower end of the base, and the upper end of the button passes through the opening upwards and is connected with the spring.

[0012] There are two folding sutures, and the distance between the two folding sutures is 0.5 to 1.5 cm; an airtight strip is pasted on the outside of the folding suture to seal the position of the folding suture.

[0013] One end of the connecting arc B is connected to the upper end of the sofa bottom, and the other end extends outwards through the lower end of the sofa back and then extends to the lower end of the armrest.

[0014] The inflatable seat cushion and the inflatable backrest cushion are both arranged between the armrests at the left and right ends of the sofa back, and the inflatable backrest cushion is located at the rear side of the inflatable seat cushion; the edges of the inflatable seat cushion and the inflatable backrest cushion are both arc-shaped.

[0015] The sofa body, inflatable seat cushion and inflatable back cushion are all covered with outer covers made of PVC or polyester; the outer cover is provided with a flip-type inflation port corresponding to the position of the air nozzle, and the air can be directly inflated through the air nozzle by opening the flip-type inflation port; the outer cover of the sofa body is provided with a through hole corresponding to the position of the sofa leg.

[0016] The length of the inflatable seat cushion is greater than the length of the sofa bottom, and the length of the inflatable backrest cushion is greater than the length of the sofa bottom.

[0017] The air nozzle is a high-pressure airtight air nozzle.

[0018] The material of the brushed air cushion is TPU or PVC; the material of the mesh cloth is TPU or PVC; the material of the folded seam line is polyester; and the material of the bottom plate is PVC.

[0019] The production process of high-strength inflatable sofas includes:

[0020] 1) The air cushion material of the wire drawing air cushion is cut into the shapes of a sofa body, an inflatable seat cushion, and an inflatable back cushion according to the design drawings, and the wire drawing air cushion of the sofa body is in a T-shape; the mesh cloth material is cut according to the design drawings, and the width of the cut mesh cloth is consistent with the drawing height of the wire drawing air cushion;

[0021] 2) Sewing the folded position of the T-shaped brushed air cushion of the sofa body through a sewing process, and sewing the upper and lower surfaces of the brushed air cushion at the folded position together with a folding sewing line; pasting airtight strips on the folded position of the T-shaped brushed air cushion of the sofa body to seal; the T-shaped brushed air cushion of the sofa body is divided into armrests, a sofa back, and a sofa bottom through the folding sewing line;

[0022] 3) The outer edges of the brushed air cushions of the sofa body, the inflatable seat cushion, and the inflatable back cushion are respectively bonded to the mesh cloth to complete the sealing; an air nozzle is respectively installed on the sofa body, the inflatable seat cushion, and the inflatable back cushion;

[0023] 4) Fold the armrests on the left and right ends of the sofa back inwards, and fold the sofa bottom upwards to make the sofa body in a folded state, and use a mesh cloth to glue the bottom of the armrests to the bottom of the sofa bottom;

[0024] 5) Install the sofa feet on the bottom of the armrests.

[0025] The inflatable sofa of the present invention is suitable for outdoor furniture, exhibitions and indoor use, has a wide range of uses and superior performance, and compared with traditional furniture, has the advantages of light weight, good air tightness, high comfort, long service life, etc., and is very convenient to store, easy to pack, transport and carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the inflatable sofa of the present invention.

[0027] Figure 2 It is a structural diagram of the sofa body.

[0028] Figure 3 Schematic diagram of the T-shaped brushed air cushion of the sofa body.

[0029] Figure 4 A schematic diagram of an inflatable seat cushion.

[0030] Figure 5 A schematic diagram of an inflatable backrest cushion.

[0031] Figure 6 This is a schematic diagram of the structure of a sofa leg.

[0032] Figure 7 for Figure 6 Left view of .

[0033] Figure 8for Figure 6 Bottom view of .

[0034] Fig. 9 A schematic diagram of the structure of the fixing device.

[0035] Fig.10 for Fig. 9 Bottom view of .

[0036] Fig.11 for Fig. 9 AA cross-section diagram.

[0037] Fig.12 It is a schematic diagram of the connection relationship between the sofa legs and the fixing device.

[0038] Fig.13 It is a structural diagram of a spring button.

[0039] Fig.14 for Fig.13 Bottom view of .

[0040] In the figure: 1. sofa body; 2. inflatable seat cushion; 3. inflatable back cushion; 4. sofa legs; 5. armrests; 6. sofa back; 7. sofa bottom; 8. folding seam line; 9. connecting arc A; 10. connecting arc B; 11. air nozzle; 12. arc plate; 13. foot seat; 14. screw hole; 15. bottom plate; 16. spring button; 17. arc baffle; 18. limit block; 19. base; 20. button; 21. spring; 22. mesh cloth. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] like Figure 1 As shown, a high-strength inflatable sofa comprises a sofa body 1, an inflatable seat cushion 2, an inflatable back cushion 3, and sofa legs 4; the sofa body 1 is formed by folding, the inflatable seat cushion 2 and the inflatable back cushion 3 are both arranged on the upper part of the sofa body 1, and the sofa legs 4 are arranged on the bottom of the sofa body 1.

[0043] The sofa body 1, the inflatable seat cushion 2 and the inflatable backrest cushion 3 are all made of an integrated brushed air cushion; the outer edge of the brushed air cushion is sealed by a mesh cloth 22; the material of the brushed air cushion is TPU or PVC; the material of the mesh cloth 22 is TPU or PVC.

[0044] The brushed air cushion is composed of the upper surface of the air cushion, the lower surface of the air cushion and the brushed parts between the upper and lower surfaces. The sofa body 1, the inflatable seat cushion 2 and the inflatable back cushion 3 made of the brushed air cushion will flatten the upper and lower surfaces of the air cushion to form a flat effect due to the internal brushing after inflation.

[0045] like Figure 2 ,3 As shown, the sofa body 1 includes armrests 5, a sofa back 6, and a sofa bottom 7. The armrests 5, the sofa back 6, and the sofa bottom 7 are connected as a whole. After the armrests 5 and the sofa bottom 7 are folded, they cooperate with the sofa back 6 to form the sofa body 1.

[0046] There are two armrests 5, which are symmetrically arranged at the left and right ends of the sofa back 6; the sofa bottom 7 is arranged at the front end of the sofa back 6; the inflatable seat cushion 2 and the inflatable back cushion 3 are both arranged between the armrests at the left and right ends of the sofa back 6, and the inflatable back cushion 3 is located at the rear side of the inflatable seat cushion 2; the inflatable seat cushion 2 and the inflatable back cushion 3 are both detachable.

[0047] The edges of the inflatable seat cushion 2 and the inflatable back cushion 3 are both curved, so they can be naturally placed in the sofa body 1 under low pressure; and the lengths of the inflatable seat cushion 2 and the inflatable back cushion 3 are both greater than the length of the sofa bottom 7, so that the inflatable seat cushion 2 and the inflatable back cushion 3 are very stably fixed in the sofa body 1 without sliding. The inflatable back cushion 3 can be manually adjusted to its tilt angle, thereby ensuring maximum comfort.

[0048] The interior of the sofa back 6, the sofa bottom 7 and the two armrests is a connected air chamber No. 1; the interiors of the inflatable seat cushion 2 and the inflatable back cushion 3 are independent air chambers No. 2 and No. 3 respectively, and the air chambers No. 1, No. 2 and No. 3 are all connected with an air nozzle 11, which is a high-pressure airtight air nozzle with a large diameter for convenient deflation and inflation; when the sofa body 1, the inflatable seat cushion 2 and the inflatable back cushion 3 need to be inflated, the air nozzle 11 is connected to an external inflation device for inflation.

[0049] The sofa body 1 is inflated separately through a gas nozzle, and its maximum inflation pressure can reach 15psi. The strength after inflation is very high, and it can still maintain a good appearance when loaded with up to 20 ordinary adults. The inflatable seat cushion 2 and the inflatable back cushion 3 are inflated separately through their own gas nozzles, and their inflation pressure is different from that of the sofa body 1. It can be adjusted according to the user's preference and can be lowered by 1 to 3psi, which greatly improves the softness and comfort of the inflatable sofa.

[0050] In order to facilitate the folding of the sofa body 1, folding seams 8 are sewn at the connection between the armrests 5, the sofa bottom 7 and the sofa back 6. The arrangement of the folding seams facilitates the armrests 5 and the sofa bottom 7 to be turned over and folded along the folding seams.

[0051] The folding seam line 8 is made of high-strength silk thread, and its material is polyester; there are two folding seam lines 8, and the distance between the two folding seam lines is 0.5 to 1.5 cm, so as to avoid the phenomenon that the silk thread breaks due to excessive air pressure at the seam position in the No. 1 air chamber during inflation. There will be slight air leakage at the position of the folding seam line 8, so an airtight strip is attached to the outside of the folding seam line 8 to seal the position of the folding seam line 8 to ensure the airtightness of the No. 1 air chamber of the sofa body 1.

[0052] When the inflated sofa body 1 is folded, the folded position tends to bulge outward, making the appearance of the sofa body 1 uneven and unsightly. Therefore, a downwardly concave connecting arc A9 is provided at the connection between the armrest 5 and the sofa back 6, and an inwardly concave connecting arc B10 is symmetrically provided at the connection between the sofa bottom 7 and the sofa back 6. The setting of the connecting arc A and the connecting arc B is used to reduce the expansion of the connection between the armrest, the sofa bottom and the sofa back after inflation, so as to facilitate the folding of the armrest and the sofa bottom, and the folded position will not bulge outward after folding, and the folded sofa body 1 is more flat and beautiful.

[0053] One end of the inwardly recessed connecting arc B10 is connected to the upper end of the sofa bottom 7, and the other end extends outward through the lower end of the sofa back 6 and then extends to the lower end of the armrest. The connecting arc B10 configured in this way involves the sofa bottom 7, the sofa back 6, and the armrest. It can reserve more space for the expansion of the bottom of the sofa back 6 connected to the armrest and the sofa bottom 7 respectively, so that the bottom of the sofa back 6 will not bulge outward when the sofa body 1 is folded after inflation, thereby ensuring the flatness of the bottom of the sofa back 6.

[0054] like Figures 6 to 8 As shown, the inflatable sofa is easy to produce bacteria and is not easy to clean after it comes into contact with the ground without ventilation, so sofa feet 4 are set at the bottom of the two armrests of the sofa body 1. The sofa feet 4 are used to improve the stability of the inflatable sofa. They can also increase stability on uneven ground outdoors and have a ventilation effect.

[0055] The sofa leg 4 includes a downwardly protruding curved plate 12 and a foot seat 13. The curvature of the upper surface of the curved plate 12 is the same as the curvature of the bottom of the armrest, so that the curved plate 12 can better fit the bottom of the armrest. Since the inflatable sofa is an inflatable product, when the air pressure inside the inflatable sofa is low during use, if the contact area between the bottom of the armrest and the sofa leg is small, it is easy to be concave when under pressure, thereby causing the inflatable sofa to be unstable. Therefore, the curvature design of the curved plate 12 fitting the bottom of the armrest can increase the contact area between the sofa leg 4 and the armrest, and the sofa leg 4 can better support the inflatable sofa, thereby increasing the stability of the inflatable sofa.

[0056] The foot 13 is fixedly arranged at the lower end of the arc-shaped plate 12. The foot 13 has a smaller contact area with the ground, and can provide more support for the inflatable sofa on a relatively uneven bottom surface. The square contact surface of the foot 13 is provided with a screw hole 14, and a metal sofa foot can be installed to increase the overall weight of the inflatable sofa. The inflatable sofa itself is light in weight, and if placed outdoors for a long time, it may be affected by strong winds and move. The purpose of installing the metal sofa foot is to increase the stability of the inflatable sofa by increasing its weight.

[0057] The sofa legs 4 are bonded to the bottom of the armrests 5 or are arranged at the bottom of the armrests 5 through a fixing device. In the latter case, the sofa legs 4 are installed in the fixing device when the inflatable sofa is in use. When the inflatable sofa is not in use, the sofa legs 4 are taken out of the fixing device, which can reduce the storage volume of the inflatable sofa after deflation. The inflatable sofa is very convenient to store and is easier to pack, transport and carry.

[0058] like Figures 9-11 As shown, the fixing device is fixedly arranged at the bottom of the armrest; the fixing device includes a bottom plate 15, a spring button 16, an arc-shaped baffle 17, and a limit block 18. The bottom plate 15 is a flexible plate, and the flexible bottom plate 15 can fit the bottom curvature of the armrest 5. The material of the bottom plate 15 is PVC.

[0059] The spring button 16, the arc baffle 17, and the limit block 18 are all fixedly arranged on the lower surface of the bottom plate 15; the spring button 16 is arranged in the middle of the front part of the bottom plate 15; there are two arc baffles 17, and the two arc baffles are symmetrically arranged on the left side and the right side of the middle part of the bottom plate 15; there are two limit blocks 18, and the two limit blocks are symmetrically arranged on the left side and the right side of the rear part of the bottom plate 15;

[0060] like Fig.13 , 14 As shown, the spring button 16 includes a base 19, a button 20, and a spring 21. The spring 21 is arranged inside the base 19. An opening is opened at the lower end of the base 19, and the upper end of the button 20 passes through the opening upward and connects with the spring 21. When the button 20 is subjected to an upward force, it will move upward to compress the spring 21.

[0061] like Fig.12 As shown, when the sofa leg 4 is inserted into the fixing device from front to back, the arc plate 12 of the sofa leg 4 presses the button 20 of the spring button 16 upward, and the button 20 moves upward to compress the spring 21. The reaction force of the spring 21 acts on the button 20 so that the button 20 moves downward to support the arc plate 12; the arc baffle 17 plays a role in limiting the up and down displacement of the arc plate 12; the sofa leg 4 is continued to be pushed forward until the arc plate 12 contacts the limit block 18, and the installation of the sofa leg 4 is completed. The limit block 18 plays a role in limiting the forward and backward displacement of the arc plate 12.

[0062] When the sofa leg 4 is to be taken out from the fixing device, the arc plate 12 is first moved upward to press the button 20 to squeeze the spring 21. At this time, the lower surface of the arc plate 12 leaves the arc baffle 17, and the sofa leg 4 is moved forward to complete the removal of the sofa leg 4.

[0063] The sofa body 1, the inflatable seat cushion 2 and the inflatable back cushion 3 are all covered with outer covers. The outer cover material is PVC or polyester, and adopts slightly elastic fabric. It is cut and sewn according to the size of the inflatable sofa to achieve a fitting effect, and can be tightly attached to the inflatable sofa. The outer cover has the advantages of anti-aging and wear resistance, and can protect the inflatable sofa. It can play the role of waterproof, anti-ultraviolet, antibacterial, etc., so that the service life of the inflatable sofa is longer; the outer cover is detachable and washable, and adopts a concealed zipper.

[0064] The outer cover is provided with a flip-top inflation port corresponding to the position of the air nozzle 11. When inflating, the inflation device can be directly connected to the air nozzle by directly opening the flip-top inflation port, and there is no need to open the outer cover, so inflation is very convenient; the outer cover of the sofa body 1 is provided with a through hole corresponding to the position of the sofa foot 4, and the sofa foot 4 can pass through the through hole and be exposed outside the outer cover, and the outer cover will not affect the contact between the sofa foot 4 and the ground or the installation of metal sofa feet.

[0065] The inflatable sofa of the present invention is suitable for outdoor furniture, exhibitions and indoor use, has a wide range of uses and superior performance, and compared with traditional furniture, has the advantages of light weight, good air tightness, high comfort, long service life, etc., and is very convenient to store, easy to pack, transport and carry.

[0066] The production process of high-strength inflatable sofas includes:

[0067] 1) The air cushion material of the wire drawing air cushion is cut into the shapes of a sofa body 1, an inflatable seat cushion 2, and an inflatable back cushion 3 according to the design drawings, and the wire drawing air cushion of the sofa body 1 is in a T-shape; the mesh cloth material is cut according to the design drawings, and the width of the cut mesh cloth is consistent with the drawing height of the wire drawing air cushion;

[0068] 2) The folded position of the T-shaped brushed air cushion of the sofa body 1 is sewn through a sewing process, and the upper and lower surfaces of the brushed air cushion at the folded position are sewn together with a folding stitching line 8, so that the T-shaped brushed air cushion of the sofa body 1 can be flipped and folded at an ideal angle along the folding stitching line 8; and there is a gap between the upper and lower surfaces of the brushed air cushion at the sewing position, which does not block the circulation of air in the No. 1 air chamber, and the sofa body 1 can be inflated through an air nozzle.

[0069] Since there is slight air leakage at the stitching position, the airtight strips are respectively pasted on the folded position of the T-shaped brushed air cushion of the sofa body 1 to seal it, so as to ensure the airtightness of the No. 1 air chamber;

[0070] The T-shaped brushed air cushion of the sofa body 1 is divided into an armrest 5, a sofa back 6, and a sofa bottom 7 by a folded seam line 8;

[0071] 3) The outer edges of the brushed air cushions of the sofa body 1, the inflatable seat cushion 2, and the inflatable back cushion 3 are respectively bonded to the mesh cloth to complete the sealing; an air nozzle 11 is respectively installed on the sofa body 1, the inflatable seat cushion 2, and the inflatable back cushion 3;

[0072] 4) Fold the armrests at the left and right ends of the sofa back 6 inward, and fold the sofa bottom 7 upward to put the sofa body 1 in a folded state, and use a mesh cloth to bond the bottom of the armrest 5 to the bottom of the sofa bottom 7, which can greatly improve the bonding firmness of the sofa body 1 after folding;

[0073] 5) Install the sofa legs 4 at the bottom of the armrests 5.

[0074] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the scope of the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A high-strength inflatable sofa, characterized by: The sofa comprises a sofa body (1), an inflatable seat cushion (2), an inflatable back cushion (3), and sofa legs (4); the inflatable seat cushion (2) and the inflatable back cushion (3) are both arranged on the upper part of the sofa body (1), and the sofa legs (4) are arranged on the bottom of the sofa body (1); the sofa body (1), the inflatable seat cushion (2), and the inflatable back cushion (3) are all made of an integrated brushed air cushion; the outer edge of the brushed air cushion is sealed by a mesh cloth (22); The sofa body (1) comprises an armrest (5), a sofa back (6) and a sofa bottom (7), wherein the armrest (5), the sofa back (6) and the sofa bottom (7) are connected as a whole; the armrest (5) is two, and the two armrests are symmetrically arranged at the left end and the right end of the sofa back (6); the sofa bottom (7) is arranged at the front end of the sofa back (6), and the interiors of the sofa back (6), the sofa bottom (7) and the two armrests are connected to a No. 1 air chamber; the interiors of the inflatable seat cushion (2) and the inflatable back cushion (3) are independent No. 2 air chambers and No. 3 air chambers, respectively, and the No. 1 air chamber, the No. 2 air chamber and the No. 3 air chamber are all connected to an air nozzle (11); the inflatable seat cushion (2) and the inflatable back cushion (3) are both arranged between the armrests at the left end and the right end of the sofa back (6), and the inflatable back cushion (3) is located at the rear side of the inflatable seat cushion (2); the edges of the inflatable seat cushion (2) and the inflatable back cushion (3) are both arc-shaped; The connection points of the armrest (5), the sofa bottom (7) and the sofa back (6) are all sewn with folding seam lines (8); the armrest (5) and the sofa bottom (7) are folded along the folding seam lines to form a sofa body (1) together with the sofa back (6); The connection between the armrest (5) and the sofa back (6) is provided with a downwardly concave connection arc A (9), and the connection between the sofa bottom (7) and the sofa back (6) is symmetrically provided with an inwardly concave connection arc B (10), and the connection arc A and the connection arc B are provided to reduce the expansion of the connection between the armrest, the sofa bottom and the sofa back after inflation, so as to facilitate the folding of the armrest and the sofa bottom; The sofa leg (4) comprises a downwardly protruding arc plate (12) and a foot seat (13); the upper surface of the arc plate (12) fits with the bottom of the armrest, thereby increasing the contact area between the sofa leg (4) and the armrest; the foot seat (13) is fixedly arranged at the lower end of the arc plate (12); a screw hole (14) is arranged on the foot seat (13), and a metal sofa leg can be installed; The sofa legs (4) are bonded to the bottom of the armrest (5) or the sofa legs (4) are arranged on the bottom of the armrest (5) via a fixing device; The fixing device comprises a bottom plate (15), a spring button (16), an arc-shaped baffle (17), and a limit block (18); the bottom plate (15) is a flexible plate; the spring button (16), the arc-shaped baffle (17), and the limit block (18) are all fixedly arranged on the lower surface of the bottom plate (15); the spring button (16) is arranged in the middle of the front part of the bottom plate (15); there are two arc-shaped baffles (17), which are symmetrically arranged on the left side and the right side of the middle part of the bottom plate (15); there are two limit blocks (18), which are symmetrically arranged on the left side and the right side of the rear part of the bottom plate (15); The spring button (16) comprises a base (19), a button (20), and a spring (21), wherein the spring (21) is arranged inside the base (19); an opening is provided at the lower end of the base (19), and the upper end of the button (20) passes through the opening upwards and is connected to the spring (21).

2. The high-strength inflatable sofa according to claim 1, characterized in that: There are two folding suture lines (8), and the distance between the two folding suture lines is 0.5 to 1.5 centimeters. An airtight strip is pasted on the outside of the folding suture lines (8) to seal the position of the folding suture lines (8).

3. The high-strength inflatable sofa according to claim 1, characterized in that: One end of the connecting arc B (10) is connected to the upper end of the sofa bottom (7), and the other end extends outward through the lower end of the sofa back (6) and then extends to the lower end of the armrest.

4. The high-strength inflatable sofa according to claim 1, characterized in that: The sofa body (1), the inflatable seat cushion (2), and the inflatable backrest cushion (3) are all covered with an outer cover, and the material of the outer cover is PVC or polyester; the outer cover is provided with a flip-type inflation port corresponding to the position of the air nozzle (11), and inflation can be directly carried out through the air nozzle by opening the flip-type inflation port; and the outer cover of the sofa body (1) is provided with a through opening corresponding to the position of the sofa leg (4).

5. The high-strength inflatable sofa according to claim 1, characterized in that: The length of the inflatable seat cushion (2) is greater than the length of the sofa bottom (7), and the length of the inflatable backrest cushion (3) is greater than the length of the sofa bottom (7).

6. The high-strength inflatable sofa according to claim 1, characterized in that: The air nozzle (11) is a high-pressure airtight air nozzle.

7. The high-strength inflatable sofa according to claim 1, characterized in that: The material of the brushed air cushion is TPU or PVC; the material of the mesh cloth (22) is TPU or PVC; the material of the folded suture line (8) is polyester; and the material of the bottom plate (15) is PVC.

8. A production process of a high-strength inflatable sofa as claimed in claim 1, characterized in that: The steps of the process are: 1) The air cushion material of the wire drawing air cushion is cut into the shapes of a sofa body (1), an inflatable seat cushion (2), and an inflatable back cushion (3) according to the design drawings, wherein the wire drawing air cushion of the sofa body (1) is in a T-shape; the mesh cloth material is cut according to the design drawings, wherein the width of the cut mesh cloth is consistent with the drawing height of the wire drawing air cushion; 2) Sewing the folded position of the T-shaped brushed air cushion of the sofa body (1) by a sewing process, and sewing the upper and lower surfaces of the brushed air cushion at the folded position together by a folding sewing line (8); pasting airtight strips on the folded position of the T-shaped brushed air cushion of the sofa body (1) to seal; the T-shaped brushed air cushion of the sofa body (1) is divided into an armrest (5), a sofa back (6), and a sofa bottom (7) by the folding sewing line (8); 3) The outer edges of the brushed air cushions of the sofa body (1), the inflatable seat cushion (2), and the inflatable back cushion (3) are respectively bonded to the mesh cloth to complete the sealing; and an air nozzle (11) is respectively installed on the sofa body (1), the inflatable seat cushion (2), and the inflatable back cushion (3); 4) folding the armrests at the left and right ends of the sofa back (6) inwards, coordinating with the sofa bottom (7) to fold upwards so that the sofa body (1) is in a folded state, and gluing the bottom of the armrest (5) and the bottom of the sofa bottom (7) together with a mesh cloth; 5) Install the sofa legs (4) on the bottom of the armrests (5).

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