Air cushion with air column structure

Abstract

This utility model belongs to the field of inflatable mat technology, specifically relating to an inflatable mat with an air column structure, including an inflatable mat body and an air column structure; the inflatable mat body has an inflation chamber, and an inflation nozzle is provided on the side wall of the inflation chamber; a tie rod is provided inside the inflation chamber; several tie rods are independent of each other, with the upper end of the tie rod connected to the inner top wall of the inflation chamber and the lower end of the tie rod connected to the inner bottom wall of the inflation chamber; the air column structure includes an air column membrane and a pull line; the upper and lower edges of the air column membrane are connected to the inner sides of the four side walls of the inflation chamber, forming an air column cavity between the air column membrane and the inner side wall of the inflation chamber; the air column cavity is separated from the inflation chamber; the pull line inside the inflation chamber has its two ends connected to the opposite sides of the air column membrane. This solution can effectively control the degree of outward bulging of the sides of the inflatable mat; reduce the volume and weight of the inflatable mat after folding, making it convenient for storage and carrying; and improve the stability and comfort of the inflatable mat during use.

Description

Technical Field

[0001] This utility model belongs to the field of inflatable cushion technology, specifically relating to an inflatable cushion with an air column structure. Background Technology

[0002] Inflatable mattresses are common household products. When an inflatable mattress is thick, the edges often bulge, affecting its appearance. Current commercially available inflatable mattresses typically reduce this bulging by adding side walls or side panels. However, these added side walls or side panels are generally quite rigid, and bulging still occurs when the mattress is too tall. Furthermore, the mattress tends to wobble during use, resulting in poor stability. Additionally, the presence of side walls makes the mattress heavier, folds less effectively, and results in a larger folded size, making it inconvenient to store.

[0003] Therefore, it is necessary to design an inflatable cushion with an air column structure. Utility Model Content

[0004] To address the aforementioned problems in existing technologies, this solution provides an inflatable cushion with an air column structure.

[0005] The technical solution adopted in this utility model is as follows:

[0006] An inflatable pad with an air column structure includes an inflatable pad body and an air column structure;

[0007] The inflatable pad body has an inflation chamber inside, and an inflation nozzle is provided on the side wall of the inflation chamber; a tie rod is provided inside the inflation chamber; several tie rods are independent of each other, the upper end of the tie rod is connected to the inner top wall of the inflation chamber, and the lower end of the tie rod is connected to the inner bottom wall of the inflation chamber.

[0008] The air column structure includes an air column membrane and a pull wire; the upper and lower edges of the air column membrane are connected to the inner sides of the four sides of the inflation chamber, forming an air column cavity between the air column membrane and the inner side wall of the inflation chamber; the air column cavity is separated from the inflation chamber, and an air column nozzle is provided on the side wall of the air column cavity; the pull wire is set inside the inflation chamber, and the two ends of the pull wire are connected to the opposite sides of the air column membrane.

[0009] As an alternative or supplement to the above structure: the main body of the inflatable pad includes a top fabric, side wall fabrics and a bottom fabric; the top fabric is located above the bottom fabric, the side wall fabrics are connected between the edges of the top fabric and the bottom fabric, and the inflation cavity is located between the top fabric, side wall fabrics and bottom fabric.

[0010] As an alternative or supplement to the above structure: the upper end of the tie rod is fused to the top fabric, and the upper end of the tie rod is fused to the bottom fabric.

[0011] As an alternative or supplement to the above structure: the tie rods are O-shaped or I-shaped, and several tie rods are distributed in a rectangular array.

[0012] As an alternative or supplement to the above structure: the vertical sides of each tie rod are oriented in the same direction or perpendicular to each other.

[0013] As an alternative or supplement to the above structure: the air column cavity is C-shaped or square-ring-shaped, and the air column cavity passes around the two short sides and two long sides of the inflatable pad body.

[0014] As an alternative or supplement to the above structure: the pull wires include horizontal pull wires and vertical pull wires that are staggered and intersecting each other; the two ends of the horizontal pull wires are connected to the air column membranes on the two long sides of the inflatable cushion body; the two ends of the vertical pull wires are connected to the air column membranes on the two short sides of the inflatable cushion body.

[0015] As an alternative or supplement to the above structure: a connecting buckle is welded onto the air column membrane, and the pull wire is connected to the connecting buckle.

[0016] As an alternative or supplement to the above structure: the manufacturing process of an air cushion with a ring-shaped air column cavity includes the following steps:

[0017] S1. Cut a long strip of air column membrane, weld several connecting buckles to the air column membrane, and then connect the horizontal and vertical pull lines to the connecting buckles on the air column membrane, so that the horizontal and vertical pull lines form a cross relationship.

[0018] S2. Connect the air column membrane end to end to form a closed loop, and make the perimeter of the air column membrane the same as the perimeter of the side wall fabric. The side of the air column membrane connected to the horizontal and vertical tension lines should face inward.

[0019] S3. Place the annular air column membrane inside the annular side wall cloth, with the outward side of the air column membrane attached to the inner side of the side wall cloth. Weld the upper and lower sides of the air column membrane to the side wall cloth respectively, so that a sealed air column cavity is formed between the air column membrane and the middle part of the side wall cloth. The airflow enters and exits the air column cavity only through the air column nozzle.

[0020] S4. The tie rods are made of a single-layer fabric structure or a ring structure with the ends connected. The lower ends of several tie rods are welded to the bottom fabric. The side wall fabric after the air column membrane is welded is placed on the bottom fabric. The air column cavity is inflated and shaped. The upper ends of each tie rod are welded to the top fabric over the horizontal and vertical tie lines.

[0021] S5. Weld the lower edge of the side wall fabric to the four edges of the bottom fabric; weld the upper edge of the side wall fabric to the four edges of the top fabric, thereby forming a sealed air chamber between the top fabric, side wall fabric and bottom fabric, and the airflow enters and exits the air chamber only through the air nozzle.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. In this solution, by setting air columns on the inner side of the sidewall fabric around the inflation chamber and pulling them with a string, the degree of outward bulging of the side of the air pad can be effectively controlled without increasing the thickness of the sidewall fabric or adding extra structures, thus improving the aesthetics of the air pad.

[0024] 2. The side wall coverings in this solution can be made of thin film, without the need to thicken or replace them with thicker materials, thus reducing the volume and weight of the inflatable pad after folding, making it easier to store and carry.

[0025] 3. The air column structure effectively reduces the shaking of the inflatable mat and can effectively stabilize the inflatable mat even when it is at a large height, thus improving the comfort of using the inflatable mat. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0027] Figure 1 This is an exploded view of the inflatable cushion in this design.

[0028] Figure 2 This is a schematic diagram of the structure of the inflatable cushion in this solution;

[0029] Figure 3 This is a cross-sectional structural diagram of the inflatable cushion in this design.

[0030] In the diagram: 1-Top fabric; 2-Side wall fabric; 3-Stretcher; 4-Bottom fabric; 5-Air column nozzle; 6-Inflation nozzle; 7-Air column membrane; 8-Horizontal tension line; 9-Vertical tension line. Detailed Implementation

[0031] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0032] like Figures 1 to 3 As shown in the figure, this embodiment designs an inflatable cushion with an air column structure, including an inflatable cushion body and an air column structure.

[0033] The inflatable pad body includes a top fabric 1, side wall fabrics 2, and a bottom fabric 4. The top fabric 1 is located above the bottom fabric 4, and the side wall fabrics 2 connect the edges of the top fabric 1 and the bottom fabric 4. The top fabric 1, side wall fabrics 2, and bottom fabric 4 together form an inflation cavity, which is located inside the inflatable pad body. An inflation nozzle 6 with a one-way valve is installed on the side wall fabric 2, allowing inflation and deflating of the inflation cavity. The top fabric 1, side wall fabrics 2, and bottom fabric 4 can be made of fabric with a coating (TPU coating or PVC coating) on ​​one side. The coating is located on the inside of the fabric, ensuring that the coating is on the inner wall of the inflation cavity after the inflatable pad body is manufactured.

[0034] A series of tie rods 3 are installed inside the inflation chamber. These tie rods 3 are independent of each other and arranged in a rectangular array. The upper end of each tie rod 3 is connected to the inner top wall of the inflation chamber, and the lower end is connected to the inner bottom wall. The upper end of each tie rod 3 is fused to the top fabric 1 and the bottom fabric 4. The tie rods 3 can be made of a film (TPU film or PVC film), or they can be made of a fabric or non-woven fabric with a coating (TPU coating or PVC coating) on ​​one side. The coating on the tie rod 3 faces the coating on the top fabric 1, the side wall fabric 2, and the bottom fabric 4, thus facilitating heat fusion welding.

[0035] The tensioner 3 can be O-shaped, such as... Figure 2 As shown, the tie rod 3 can also be I-shaped (not shown in the figure). When the tie rod 3 is O-shaped, the tread marks on the top fabric 1 and bottom fabric 4 are rectangular; while when the tie rod 3 is I-shaped, the tread marks on the top fabric 1 and bottom fabric 4 are long strips.

[0036] The vertical sides of each tie rod 3 face the same direction (e.g., Figure 3 As shown in the figure, the vertical sides of each tie rod 3 can also be perpendicular to each other (not shown in the figure).

[0037] The air column structure includes an air column membrane 7 and a pull wire; the upper and lower edges of the air column membrane 7 are connected to the inner side of the four sides of the inflation chamber, forming an air column cavity between the air column membrane 7 and the inner side wall of the inflation chamber; the air column cavity is separated from the inflation chamber, and an air column nozzle 5 is provided on the side wall of the air column cavity; the pull wire is provided in the inflation chamber, and the two ends of the pull wire are connected to the opposite sides of the air column membrane 7.

[0038] The air column cavity is square-ring-shaped (e.g.) Figure 2 (As shown) or C-shaped, the air column cavity passes around the two short sides and two long sides of the inflatable pad body.

[0039] The pull cords include horizontal pull cords 8 and vertical pull cords 9, which are staggered and intersecting each other. Multiple horizontal pull cords 8 can be installed and connected to different positions of the air column membrane 7, and multiple vertical pull cords 9 can also be installed and connected to different positions of the air column membrane 7. The two ends of the horizontal pull cords 8 are connected to the air column membranes 7 on the two long sides of the inflatable cushion body; the two ends of the vertical pull cords 9 are connected to the air column membranes 7 on the two short sides of the inflatable cushion body. Connecting buckles are fused onto the air column membranes 7, and the pull cords are connected to these connecting buckles, thereby achieving the connection between the pull cords and the air column membranes 7.

[0040] Example 2

[0041] Based on the structure of Example 1, when the shape of the air column cavity is annular, the manufacturing process of the inflatable cushion includes the following steps:

[0042] S1. Cut a strip of air column membrane 7 of appropriate length, weld several connecting buckles to the air column membrane 7, and then connect the transverse pull line 8 and the longitudinal pull line 9 to the connecting buckles on the air column membrane 7, so that the transverse pull line 8 and the longitudinal pull line 9 form a cross relationship; Since the materials involved in this step and step S2 are small in volume and occupy a small area, they can be prepared or prefabricated in advance, thereby improving production efficiency.

[0043] S2. Connect the air column membrane 7 end to end to form a closed loop, and make the perimeter of the air column membrane 7 the same as the perimeter of the side wall fabric 2. The side of the air column membrane 7 connected to the transverse tension line 8 and the longitudinal tension line 9 faces inward. The first and last ends of the air column membrane 7 can be cut obliquely so that the first and last ends are inclined to the length direction of the air column membrane 7, or the first and last ends of the air column membrane 7 can be cut into a sawtooth shape. This makes it less likely for the air column membrane 7 to tear at the connection between the first and last ends after inflation.

[0044] S3. Place the annular air column membrane 7 inside the annular sidewall fabric 2, with the outward-facing side of the air column membrane 7 adhering to the inner side of the sidewall fabric 2. Weld the upper and lower sides of the air column membrane 7 to the sidewall fabric 2 respectively, so that a sealed air column cavity is formed between the air column membrane 7 and the middle part of the sidewall fabric 2. The airflow enters and exits the air column cavity only through the air column nozzle 5. Since the materials involved in this step, the sidewall fabric 2 and the air column membrane 7, have a small volume and occupy a small area, they can be prepared or prefabricated in advance to improve production efficiency.

[0045] S4, the tensioner 3 uses a single-layer fabric structure. The upper and lower ends of the tensioner 3 are bent to form a C-shaped structure. The tensioner 3 uses a ring structure with the ends connected, i.e., an O-shaped structure. Several tensioners 3 are welded to the bottom fabric 4 at their lower ends. The side wall fabric 2 after the air column membrane 7 is welded is placed on the bottom fabric 4. The air column cavity is inflated and shaped. The upper ends of each tensioner 3 are welded to the top fabric 1 over the horizontal tension line 8 and the vertical tension line 9. Since the top fabric 1 and the bottom fabric 4 have a large fabric area and occupy a large area, the pre-inflated air column cavity can speed up production efficiency, reduce the probability of spatial interference between the tensioner 3 and the horizontal tension line 8 and the vertical tension line 9, reduce rework rate and occupation of workstations, and help improve production efficiency.

[0046] S5. Weld the lower edge of the side wall fabric 2 to the four perimeter edges of the bottom fabric 4; weld the upper edge of the side wall fabric 2 to the four perimeter edges of the top fabric 1, thereby forming a sealed air chamber between the top fabric 1, the side wall fabric 2 and the bottom fabric 4, and the airflow enters and exits the air chamber only through the air nozzle 6.

[0047] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. An air-filled cushion having a column of air structure, characterized by: Includes the inflatable cushion body and the air column structure; An inflation chamber is provided inside the main body of the inflatable pad, and an inflation nozzle (6) is provided on the side wall of the inflation chamber; a tie rod (3) is provided inside the inflation chamber; several tie rods (3) are independent of each other, the upper end of the tie rod (3) is connected to the inner top wall of the inflation chamber, and the lower end of the tie rod (3) is connected to the inner bottom wall of the inflation chamber. The air column structure includes an air column membrane (7) and a pull wire; the upper and lower edges of the air column membrane (7) are connected to the inner side of the four sides of the inflation chamber, and an air column cavity is formed between the air column membrane (7) and the inner side wall of the inflation chamber; the air column cavity is separated from the inflation chamber, and an air column nozzle (5) is provided on the side wall of the air column cavity; the pull wire is set in the inflation chamber, and the two ends of the pull wire are connected to the opposite sides of the air column membrane (7).

2. An air pillow structured cushion according to claim 1, wherein: The main body of the inflatable pad includes a top fabric (1), side wall fabrics (2) and a bottom fabric (4); the top fabric (1) is located above the bottom fabric (4), the side wall fabrics (2) are connected between the edges of the top fabric (1) and the bottom fabric (4), and the inflation chamber is located between the top fabric (1), the side wall fabrics (2) and the bottom fabric (4).

3. An air pillow structured cushion according to claim 2, wherein: The upper end of the tie rod (3) is fused to the top fabric (1), and the upper end of the tie rod (3) is fused to the bottom fabric (4).

4. An air pillow structured cushion according to claim 3, wherein: The tie rod (3) is O-shaped or I-shaped, and several tie rods (3) are distributed in a rectangular array.

5. An air pillow structured cushion according to claim 4, wherein: The vertical sides of each tie rod (3) are aligned or perpendicular to each other.

6. An airbag cushion having a column of air structure according to any one of claims 1 to 5, wherein: The air column cavity is C-shaped or square-ring-shaped, and the air column cavity passes through the two short sides and two long sides of the main body of the inflatable pad.

7. The inflatable cushion with air column structure according to claim 6, characterized in that: The pull wires include intersecting horizontal pull wires (8) and vertical pull wires (9); the two ends of the horizontal pull wires (8) are connected to the air column membranes (7) on the two long sides of the air cushion body; the two ends of the vertical pull wires (9) are connected to the air column membranes (7) on the two short sides of the air cushion body.

8. The inflatable cushion with air column structure according to claim 7, characterized in that: A connecting buckle is welded onto the air column membrane (7), and the pull wire is connected to the connecting buckle.

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