Air column connecting structure

Abstract

The utility model discloses an air column connecting structure which comprises a main pipe body and an auxiliary pipe body, a main pipe opening is formed in the side wall of the main pipe body, a tensile reinforcing piece and a main pipe sealing piece are sequentially arranged on the inner side of the main pipe opening from inside to outside, and the periphery of the tensile reinforcing piece and the periphery of the main pipe sealing piece are both connected with the inner side wall of the main pipe body in a sealed mode. An auxiliary pipe joint is connected to the outer side of the hole of the main pipe, an annular reinforcing piece is arranged on the outer side of the joint of the auxiliary pipe joint and the main pipe body, a joint sealing piece is arranged on the inner side of the auxiliary pipe joint, and one end of the joint sealing piece is connected with the main pipe sealing piece in a sealed mode. The auxiliary pipe joint, the joint sealing sheet and the auxiliary pipe body are hermetically connected together at the insertion part; a first air hole is formed in the middle of the tensile reinforcing piece, and a second air hole aligned with the first air hole is formed in the middle of the main pipe sealing piece. The utility model has the advantages of high quality, easy manufacture and low cost.

Description

Technical Field

[0001] The utility model relates to the technical field of inflatable tents, in particular to an air column connection structure. Background Art

[0002] Inflatable tents currently on the market face numerous manufacturing challenges, particularly in the design and manufacturing of the air column connections. Traditional production processes often lead to problems such as distortion and air leakage at these connections, which not only affects the overall performance of the tent but also diminishes the user experience.

[0003] Existing production processes usually rely on experienced professionals to perform manual operations, resulting in instability in the production process, long production cycles, low production efficiency, inconsistent product quality, and a significant increase in the training costs of structural personnel.

[0004] In addition, existing inflatable tent production equipment usually requires huge investment, and for small and medium-sized enterprises, the overall production cost is too high and unaffordable.

[0005] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and the present invention is made based on this situation. Utility Model Content

[0006] The utility model aims to overcome the deficiencies of the prior art and provide a gas column connection structure which is high in quality, easy to manufacture and low in cost.

[0007] The utility model is achieved through the following technical solutions:

[0008] To solve the above technical problems, the present invention provides an air column connection structure, comprising a main pipe body and a secondary pipe body, wherein the side wall of the main pipe body is provided with a main pipe opening, and the inside of the main pipe opening is provided with an anti-tensile reinforcement sheet and a main pipe sealing sheet in order from the inside to the outside, and the periphery of the anti-tensile reinforcement sheet and the periphery of the main pipe sealing sheet are both sealed to the inner wall of the main pipe body;

[0009] The outer side of the main pipe opening is connected to a secondary pipe joint, the outer side of the connection between the secondary pipe joint and the main pipe body is provided with an annular reinforcement sheet, the inner side of the secondary pipe joint is provided with a joint sealing sheet, one end of the joint sealing sheet is sealed with the main pipe sealing sheet, the secondary pipe body is inserted into the other end of the secondary pipe joint, and the secondary pipe joint, the joint sealing sheet and the secondary pipe body are sealed together at the insertion point;

[0010] A first air hole is provided in the middle of the anti-tensile reinforcement sheet, and a second air hole aligned with the first air hole is provided in the middle of the main pipe sealing sheet.

[0011] In order to further solve the technical problems to be solved by the present invention, the present invention provides an air column connection structure, in which a vent plate through which gas can pass is provided on the inner side of the first air hole, and the periphery of the vent plate and the anti-tensile reinforcement plate and the main pipe sealing plate are hot-melt welded together.

[0012] In order to further solve the technical problem to be solved by the present invention, the present invention provides an air column connection structure, in which the main pipe opening is provided with a plurality of outward-turned first connecting petals, one end of the secondary pipe joint is provided with a second connecting petal that can be mutually connected with the first connecting petal, the annular reinforcement plate is sleeved on the outermost sides of the first connecting petal and the second connecting petal, and the first connecting petal, the second connecting petal and the annular reinforcement plate are hot-melt welded together to form an airtight structure.

[0013] In order to further solve the technical problems to be solved by the present invention, the present invention provides an air column connection structure, in which the periphery of the anti-tensile reinforcement plate, the periphery of the main pipe sealing plate and the inner wall of the main pipe body are welded together by hot melt to form an airtight structure; at the joint between the auxiliary pipe joint and the auxiliary pipe body, the auxiliary pipe joint, the joint sealing plate and the auxiliary pipe body are also welded together by hot melt to form an airtight structure.

[0014] In order to further solve the technical problem to be solved by the present invention, in an air column connection structure provided by the present invention, at the joint between the auxiliary pipe joint and the auxiliary pipe body, the joint sealing sheet is clamped between the inner wall of the auxiliary pipe joint and the outer wall of the auxiliary pipe body.

[0015] In order to further solve the technical problem to be solved by the present invention, the present invention provides an air column connection structure, in which the inner side wall of the auxiliary tube body is provided with an auxiliary tube sealing plate, and the auxiliary tube sealing plate, the auxiliary tube body and the joint sealing plate are hot-melt welded together to form an airtight structure.

[0016] In order to further solve the technical problem to be solved by the present invention, in an air column connection structure provided by the present invention, at the joint between the auxiliary pipe joint and the auxiliary pipe body, one end of the joint sealing piece extends to the inner wall of the auxiliary pipe body and is hot-melt welded thereto.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The air column connection structure of the present invention connects the auxiliary pipe joint to the main pipe body so as to connect to the auxiliary pipe body. In addition, an anti-tensile reinforcement sheet and a main pipe sealing sheet are added on the inner side of the connection between the main pipe body and the auxiliary pipe joint, which are used to increase the tensile resistance and airtightness respectively. An annular reinforcement sheet is added on the outer side of the connection between the main pipe body and the auxiliary pipe joint to further increase the tensile resistance of the connection. A joint sealing sheet is added inside the auxiliary pipe joint, one end of the joint sealing sheet is connected to the main pipe sealing sheet, and the other end is connected to the auxiliary pipe body, thereby forming a coherent sealing layer between the auxiliary pipe body and the main pipe body, greatly reducing the risk of gas leakage and ensuring the stability and safety of the tent after inflation.

[0019] 2. This utility model's gas column connection method improves connection efficiency and accuracy, enhances airtightness and structural stability, and reduces the complexity of manual operation, ensuring product quality and reliability. Furthermore, this gas column connection method utilizes a mold-assisted welding design. Through the combination of a lower mold and an upper mold, this simplifies the assembly process of the connecting components and ensures precise docking and welding of each component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0022] Figure 2 It is an exploded schematic diagram of the utility model;

[0023] Figure 3 yes Figure 2 Middle A-direction view;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the upper mold and the lower mold;

[0025] Figure 5 is a cross-sectional schematic diagram of embodiment 1;

[0026] Figure 6 is a cross-sectional schematic diagram of embodiment 2;

[0027] Figure 7 is a schematic cross-sectional view of embodiment 3;

[0028] Figure 8 It is a cross-sectional schematic diagram of embodiment 4. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] like Figures 1 to 8 The air column connection structure shown is designed to enhance the air tightness and tensile strength of the inflatable tent by optimizing the connection design, effectively solving the problem of air leakage and tearing at the air column connection of existing inflatable tents, and simplifying the manufacturing process.

[0031] The structure includes a main body 1 and a secondary body 2. The side wall of the main body 1 is provided with a main opening 11. The inside of the main opening 11 is provided with an anti-tensile reinforcement sheet 3 and a main sealing sheet 4 from the inside to the outside. The periphery of the anti-tensile reinforcement sheet 3 and the periphery of the main sealing sheet 4 are sealed to the inner wall of the main body 1.

[0032] The outer side of the main pipe opening 11 is connected to a secondary pipe joint 5, and an annular reinforcement plate 6 is provided on the outer side of the connection between the secondary pipe joint 5 and the main body 1. A joint sealing plate 7 is provided on the inner side of the secondary pipe joint 5, and one end of the joint sealing plate 7 is sealed with the main pipe sealing plate 4. The secondary pipe body 2 is inserted into the other end of the secondary pipe joint 5, and the secondary pipe joint 5, the joint sealing plate 7 and the secondary pipe body 2 are sealed together at the insertion point.

[0033] The utility model connects a sub-tube joint 5 to the main body 1 so as to connect it to the sub-tube body 2. Furthermore, an anti-tensile reinforcement sheet 3 and a main sealing sheet 4 are added to the inner side of the connection between the main body 1 and the sub-tube joint 5, which are used to increase the tensile strength and airtightness, respectively. An annular reinforcement sheet 6 is added to the outer side of the connection between the main body 1 and the sub-tube joint 5 to further increase the tensile strength of the connection. A joint sealing sheet 7 is added to the sub-tube joint 5, one end of which is connected to the main sealing sheet 4 and the other end is connected to the sub-tube body 2, thereby forming a continuous sealing layer between the sub-tube body 2 and the main body 1, greatly reducing the risk of gas leakage and ensuring the stability and safety of the tent after inflation.

[0034] This new product solves the current difficulties in tent production and the inconsistent and substandard quality issues. It eliminates the need for manual labor from experienced professionals and can be mass-produced using molds and equipment. Ordinary employees can use the equipment with minimal training. This improves production efficiency and quality yield, while reducing production costs. The modularized components allow for standardized production, and this structure significantly reduces product distortion and air leakage.

[0035] In terms of material selection, the tensile reinforcement sheet 3 and the annular reinforcement sheet 6 are preferably made of high-strength materials such as nylon woven PVC double-sided coated cloth and mesh. The main pipe body 1, the auxiliary pipe joint 5, and the auxiliary pipe body 2 are also preferably made of such materials. These materials not only have excellent tensile properties but also effectively prevent puncture and tearing. The main pipe sealing sheet 4 and the joint sealing sheet 7 are mainly made of soft film materials, including but not limited to PVC and TPU. The flexibility of these materials ensures that they can maintain good sealing performance during compression and stretching. In addition, the innermost and outermost layers of these materials are preferably connected by hot melt welding, which further enhances the overall structural strength and airtightness and facilitates manufacturing.

[0036] Of course, the anti-stretching reinforcement sheet 3 has a first air hole 31 in the center, and the main pipe sealing sheet 4 has a second air hole 41 in the center, aligned with the first air hole 31. Furthermore, a vent sheet 8 is provided inside the first air hole 31, through which air can pass. The perimeter of the vent sheet 8 is heat-welded to the anti-stretching reinforcement sheet 3 and the main pipe sealing sheet 4. Both the first air hole 31 and the second air hole 41 are for ventilation; the vent sheet 8 is designed to provide a good airflow path while preventing the intrusion of external impurities.

[0037] Furthermore, the main pipe opening 11 is designed with a plurality of outward-turned first connecting flaps 12. These connecting flaps not only enhance the stability of the connection but also provide more contact surface for the installation of the auxiliary pipe joint 5. Specifically, one end of the auxiliary pipe joint 5 is designed with a second connecting flap 51 that interlocks with the first connecting flap 12. This structure enables the auxiliary pipe joint 5 to be firmly embedded in the main pipe body 1 and ensures a tight connection between the two.

[0038] To further enhance the overall strength and airtightness of the connection, an annular reinforcement sheet 6 is placed on the outermost sides of the first and second connecting flaps 12, 51. This sheet's primary function is to increase structural strength and tensile strength, dissipate pressure at the connection, and prevent tearing or deformation caused by external forces. This design not only provides additional support for the connection but also effectively prevents gas leakage.

[0039] During the manufacturing process, the first connecting flap 12, the second connecting flap 51 and the annular reinforcing sheet 6 are tightly combined together by heat-melting welding to form a strong airtight structure.

[0040] Furthermore, the periphery of the tensile strength reinforcement sheet 3, the periphery of the main pipe sealing sheet 4 and the inner wall of the main pipe body 1 are preferably welded together by heat fusion to form an airtight structure, and can also be connected by gluing or other methods.

[0041] At the joint between the auxiliary pipe joint 5 and the auxiliary pipe body 2, the auxiliary pipe joint 5, the joint sealing sheet 7 and the auxiliary pipe body 2 are preferably welded together by heat fusion to form an airtight structure. The following are several examples of the joint between the auxiliary pipe joint 5 and the auxiliary pipe body 2:

[0042] Example 1: Figure 5 The first embodiment of the present invention is shown. In this embodiment, at the junction of the secondary pipe joint 5 and the secondary pipe body 2, the joint sealing sheet 7 is sandwiched between the inner wall of the secondary pipe joint 5 and the outer wall of the secondary pipe body 2. In other words, the secondary pipe body 2 is directly inserted into the joint sealing sheet 7, and the three are welded together by heat fusion. The number of weld circles is at least one, and two or more circles can also be welded.

[0043] Example 2: Figure 6 The second embodiment of the present invention is shown. This embodiment differs from the first embodiment described above in that a secondary tube sealing sheet 9 is provided on the inner sidewall of the secondary tube body 2. This secondary tube sealing sheet 9 is heat-melted together with the secondary tube body 2 and the joint sealing sheet 7 to form an airtight structure. The secondary tube sealing sheet 9 is also preferably made of a material such as PVC or TPU, further enhancing the sealing performance at the junction between the secondary tube joint 5 and the secondary tube body 2.

[0044] Example 3: Figure 7 What is shown is embodiment 3 of the present invention, which differs from the above-mentioned embodiment 2 in that, in this embodiment, one end of the auxiliary pipe sealing piece 9 extends toward the auxiliary pipe joint 5, and the extended end of the auxiliary pipe sealing piece 9 is hot-melt welded to the inner wall of the auxiliary pipe joint 5 to form an airtight structure. This airtight structure can completely seal the end of the auxiliary pipe body 2, further improving the sealing performance.

[0045] Example 4: Figure 8 The fourth embodiment of the present invention is shown. It differs from the first embodiment described above in that, at the junction of the secondary pipe joint 5 and the secondary pipe body 2, one end of the joint sealing sheet 7 extends to the inner sidewall of the secondary pipe body 2 and is heat-fused thereto. In other words, the secondary pipe body 2 is inserted between the secondary pipe joint 5 and the joint sealing sheet 7, or in other words, one end of the joint sealing sheet 7 extends toward the secondary pipe body 2, completely sealing the end of the secondary pipe body 2, also to enhance sealing performance.

[0046] Of course, in the above embodiments, the number of welding circles at the heat-melting welding position is at least one circle, and two or more circles can also be welded.

[0047] The gas column connection method of the utility model is simple and convenient, highly efficient and has high product quality, and includes the following specific steps:

[0048] S1. Fabricate a sealed liner assembly. Specifically, take the tensile reinforcement sheet 3, the main pipe sealing sheet 4, the joint sealing sheet 7, and the vent sheet 8. A first air hole 31 is formed in the center of the tensile reinforcement sheet 3, and a second air hole 41 is formed in the center of the main pipe sealing sheet 4. The joint sealing sheet 7 is processed into a cylindrical shape, and one end of the joint sealing sheet 7 is welded to the main pipe sealing sheet 4. The tensile reinforcement sheet 3 is placed inside the main pipe sealing sheet 4, and the first air hole 31 and the second air hole 41 are aligned. The vent sheet 8 is placed inside the first air hole 31, and the periphery of the vent sheet 8 is welded to the tensile reinforcement sheet 3 and the main pipe sealing sheet 4. Finally, the sealed liner assembly is fabricated.

[0049] S2. Fabricate the main pipe joint assembly. Take the main pipe body 1, the annular reinforcement sheet 6, and the auxiliary pipe joint 5. Punch out a main pipe opening 11 in the main pipe body 1. Turn the main pipe opening 11 outward to form a first connecting flap 12. Process the auxiliary pipe joint 5 from a sheet into a cylindrical shape. Turn the auxiliary pipe joint 5 outward to form a second connecting flap 51. Process the annular reinforcement sheet 6 from a sheet into a closed ring cone. Socket the first connecting flap 12 and the second connecting flap 51 together. Socket the annular reinforcement sheet 6 onto the outermost sides of the first connecting flap 12 and the second connecting flap 51. Weld the first connecting flap 12, the second connecting flap 51, and the annular reinforcement sheet 6 together to complete the main pipe joint assembly.

[0050] S3, connecting the sealing liner assembly and the main pipe joint assembly, that is, placing the sealing liner assembly into the main pipe joint assembly, and welding the periphery of the tensile reinforcement sheet 3, the periphery of the main pipe sealing sheet 4, and the corresponding positions of the side wall of the main pipe body 1 together to form a whole;

[0051] S4, connecting the main pipe body 1 and the auxiliary pipe body 2, that is, taking the auxiliary pipe body 2, inserting one end of the auxiliary pipe body 2 into the auxiliary pipe joint 5, and welding the auxiliary pipe body 2, the auxiliary pipe joint 5 and the joint sealing piece 7 together to form an airtight structure.

[0052] Furthermore, in order to further increase the convenience of the gas column connection process, in step S2, a mold, that is, a cylindrical lower mold 100 (such as Figure 4 As shown), and a columnar upper mold 200 (as shown) that can be sleeved in the lower mold 100 Figure 4 As shown in FIG, the upper end of the inner side wall of the lower mold 100 is provided with a first inclined surface 101, and the upper end of the outer side wall of the upper mold 200 is provided with a second inclined surface 201 that can cooperate with the first inclined surface 101; welding the annular reinforcement plate 6 specifically includes the following steps:

[0053] S2.1. Insert the secondary pipe joint 5 into the lower mold 100, pass the upper mold 200 from the inside out through the main pipe opening 11, and then put the annular reinforcement plate 6 onto the lower mold 100.

[0054] S2.2, insert the upper mold 200 into the lower mold 100, and make the first connecting petal 12 and the second connecting petal 51 overlap, and the annular reinforcement plate 6 is sleeved on the outside of the first connecting petal 12 and the second connecting petal 51, and the first inclined surface 101 and the second inclined surface 201 clamp the first connecting petal 12, the second connecting petal 51 and the annular reinforcement plate 6 between the two and perform hot melt welding.

[0055] In addition to the above-mentioned welding method, the main body 1 and the auxiliary pipe joint 5 can also be inserted into a rotatable mold core, the annular reinforcement plate 6 can be inserted into the junction of the main body 1 and the auxiliary pipe joint 5, and then the mold core can be rotated and welded in multiple times. That is, this processing operation is a rotary mold processing method.

[0056] Furthermore, the connection between the auxiliary pipe body 2 and the auxiliary pipe joint 5 in step S4 can adopt different embodiments. Figure 5 In the embodiment 1 shown, the auxiliary pipe body 2 is inserted between the inner wall of the auxiliary pipe joint 5 and the outer wall of the joint sealing piece 7. Figure 8 In the fourth embodiment shown, the auxiliary pipe body 2 is inserted into the joint sealing piece 7. Figure 6 The second embodiment shown and Figure 7 In the third embodiment shown, a secondary pipe sealing piece 9 is additionally provided inside the secondary pipe body 2 , and the secondary pipe sealing piece 9 , the secondary pipe body 2 , the secondary pipe joint 5 , and the joint sealing piece 7 are welded together to form an airtight structure.

[0057] Through the above steps, the gas column connection method not only improves the efficiency and convenience of connection, but also effectively ensures the quality of the product, providing a solid foundation for subsequent use.

Claims

1. A gas column connection structure, characterized in that: The invention comprises a main pipe body (1) and a secondary pipe body (2), wherein the side wall of the main pipe body (1) is provided with a main pipe opening (11), and the inside of the main pipe opening (11) is provided with an anti-stretching reinforcement sheet (3) and a main pipe sealing sheet (4) in sequence from the inside to the outside, and the periphery of the anti-stretching reinforcement sheet (3) and the periphery of the main pipe sealing sheet (4) are both sealed and connected to the inner side wall of the main pipe body (1); The outer side of the main pipe opening (11) is connected to a secondary pipe joint (5); the outer side of the connection between the secondary pipe joint (5) and the main pipe body (1) is provided with an annular reinforcement sheet (6); the inner side of the secondary pipe joint (5) is provided with a joint sealing sheet (7); one end of the joint sealing sheet (7) is sealedly connected to the main pipe sealing sheet (4); the secondary pipe body (2) is inserted into the other end of the secondary pipe joint (5); and the secondary pipe joint (5), the joint sealing sheet (7) and the secondary pipe body (2) are sealed together at the insertion point; A first air hole (31) is provided in the middle of the anti-tensile reinforcement sheet (3), and a second air hole (41) aligned with the first air hole (31) is provided in the middle of the main pipe sealing sheet (4).

2. The air column connection structure according to claim 1, characterized in that: A vent sheet (8) through which gas can pass is provided inside the first air hole (31), and the periphery of the vent sheet (8) is heat-melted together with the anti-tensile reinforcement sheet (3) and the main pipe sealing sheet (4).

3. The air column connection structure according to claim 1, characterized in that: The main pipe opening (11) is provided with a plurality of outward-turned first connecting flaps (12); one end of the auxiliary pipe joint (5) is provided with a second connecting flap (51) that can be mutually connected with the first connecting flap (12); the annular reinforcement sheet (6) is sleeved on the outermost sides of the first connecting flap (12) and the second connecting flap (51); and the first connecting flap (12), the second connecting flap (51) and the annular reinforcement sheet (6) are heat-melted and welded together to form an airtight structure.

4. The air column connection structure according to claim 1, characterized in that: The periphery of the tensile strength reinforcing sheet (3), the periphery of the main pipe sealing sheet (4) and the inner wall of the main pipe body (1) are welded together by heat fusion to form an airtight structure; at the joint between the auxiliary pipe joint (5) and the auxiliary pipe body (2), the auxiliary pipe joint (5), the joint sealing sheet (7) and the auxiliary pipe body (2) are also welded together by heat fusion to form an airtight structure.

5. The air column connection structure according to claim 4, characterized in that: At the joint between the auxiliary pipe joint (5) and the auxiliary pipe body (2), the joint sealing sheet (7) is clamped between the inner side wall of the auxiliary pipe joint (5) and the outer side wall of the auxiliary pipe body (2).

6. The air column connection structure according to claim 5, characterized in that: The inner side wall of the auxiliary tube body (2) is provided with an auxiliary tube sealing sheet (9), and the auxiliary tube sealing sheet (9), the auxiliary tube body (2) and the joint sealing sheet (7) are heat-melted and welded together to form an airtight structure.

7. The air column connection structure according to claim 4, characterized in that: At the joint between the auxiliary pipe joint (5) and the auxiliary pipe body (2), one end of the joint sealing sheet (7) extends to the inner side wall of the auxiliary pipe body (2) and is heat-melted thereto.

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