Velcro connection structure for tent air pipe, tent air pipe and tent

Abstract

The utility model relates to a magic tape connecting structure for tent inflatable pipe, tent inflatable pipe and tent, magic tape connecting structure includes TPU inflatable branch pipe, TPU round sheet, pad cloth, magic tape, sewing trace, the periphery of TPU round sheet is fused and the end surface of TPU inflatable branch pipe forms integral type connection through hot pressing, pad cloth covers and set up on the one side surface of TPU round sheet back to TPU inflatable branch pipe, magic tape covers on the one side surface of pad cloth back to TPU round sheet, sewing trace passes magic tape and pad cloth in proper order, thereby magic tape and pad cloth fixed connection as a whole. The utility model provides a magic tape connecting structure for tent inflatable pipe, tent inflatable pipe and tent, by introducing pad cloth this key component, effectively solved the technical problems such as skidding, line jumping and uneven line when directly sewing operation is carried out on smooth TPU surface.

Description

Technical Field

[0001] This utility model relates to the technical field of outdoor products and inflatable products, specifically to a Velcro connection structure for a tent inflation tube, a tent inflation tube, and a tent. Background Technology

[0002] In the design and manufacturing of inflatable tents, a reliable connection between the TPU inflatable tubes and the tent cover is a crucial element in realizing the product's functionality. This connection not only needs sufficient structural strength to withstand the internal pressure and external load after inflation, but also must consider production feasibility and convenience. Currently, various connection methods have been widely tried and applied. One common solution is to use elastic bands for binding and fixing. While this method is simple, its long-term stability and reliability may have room for improvement in applications requiring high connection strength and airtightness. Another approach is to directly fix the Velcro assembly to the TPU inflatable tubes to achieve an adhesive connection with the cover. However, the smooth surface and certain elasticity and thickness of TPU material make it prone to sewing problems such as needle slippage, skipped stitches, or skewed stitches. This not only reduces production efficiency and increases the defect rate but also limits the large-scale reliable application of Velcro connections in this type of product. Therefore, there is a demand in the industry for a new structure that can balance connection performance and production convenience. Utility Model Content

[0003] In view of this, the present invention provides a Velcro connection structure for tent inflation tubes, which can improve the smoothness of sewing operations and provide a robust and reliable branch tube connection solution.

[0004] The objective of this utility model is achieved through the following technical solution: A Velcro connection structure for tent inflation hoses includes: TPU inflatable branch tube; The TPU disc is integrally connected to the end surface of the TPU inflation tube by hot pressing and fusion. A padding cloth is placed on the surface of the TPU disc facing away from the TPU inflation tube. Velcro, which covers the side surface of the pad that faces away from the TPU disc; The stitches pass through the Velcro and the padding fabric in sequence, thereby fixing the Velcro and the padding fabric together as a whole.

[0005] By introducing a key component—a padding fabric—the technical challenges of slippage, skipped stitches, and uneven stitching encountered when sewing directly on a smooth TPU surface are effectively solved. The padding fabric, covering the TPU disc, significantly increases the coefficient of friction in the sewing area, allowing the sewing needle to move smoothly and greatly improving the production efficiency and first-pass yield of the hook and loop fastener process. The TPU disc and the TPU inflatable tube are connected using a thermoforming process. This method achieves material fusion at the molecular level, forming a permanent, airtight, and mechanically strong seal. Its reliability and durability far surpass traditional methods relying solely on stitches or elastic bands for fixation. The stitches sequentially penetrate the hook and loop fastener and the padding fabric, tightly bonding them into a unified prefabricated component. This component, covered and attached to the TPU disc by the padding fabric, ensures that the layers do not misalign during subsequent thermoforming and provides uniform and strong adhesion to the hook and loop fastener. The entire structure is ingeniously conceived with clear interlayer relationships, making it highly suitable for large-scale mass production. This claim establishes the most fundamental and broadest scope of protection for the entire patent, with its core being the innovative structural combination of "pad fabric + sewing," providing a simple and effective implementation path for solving common technical problems in the industry.

[0006] Preferably, the TPU disc is circular.

[0007] Limiting the TPU disc to a circular structure offers several practical benefits. The absence of sharp corners in the circular design allows for a more uniform stress distribution during hot-pressing and fusion, effectively reducing the risk of edge lifting or incomplete fusion due to stress concentration. This improves the sealing reliability and aesthetics of the connection interface. The circular shape naturally aligns with the path of stitching, resulting in smoother and more natural stitching, whether single or multi-turn, ensuring consistent and uniform sewing quality. Furthermore, the circle is the most symmetrical geometric shape, eliminating the need for a specific orientation when installing it at the end of the TPU inflation tube. This simplifies the assembly process, reduces production difficulty and the skill requirements for workers, further improving assembly efficiency and reducing scrap rates due to incorrect orientation.

[0008] Preferably, the area of ​​the padding is greater than or equal to the area of ​​the TPU disc.

[0009] The feature that the area of ​​the backing cloth is greater than or equal to the area of ​​the TPU disc ensures that the backing cloth completely covers the underlying TPU disc, providing fundamental protection for the core sewing process. Full coverage means that throughout the entire working area of ​​sewing the Velcro, the sewing needle always pierces the surface material of the backing cloth, completely avoiding direct contact between the needle and the smooth TPU surface. This fundamentally eliminates quality problems such as skipped stitches, broken threads, or crooked stitches caused by the slippery TPU material. The sufficiently large backing cloth area provides a more ample safety margin for the sewing operation. Even with minor alignment deviations, it ensures that the sewing area remains within the effective range of the backing cloth, enhancing the tolerance and stability of the production process and laying a solid foundation for ensuring the uniformity and consistency of the final product's connection strength.

[0010] Preferably, the fusion area between the TPU disc and the TPU inflation tube is annular.

[0011] The fusion zone between the TPU disc and the TPU inflatable branch tube is specifically defined as an annular structure, offering significant mechanical and sealing advantages. This annular fusion zone forms a closed, continuous sealing ring. This structure can evenly withstand radial stress from the inside of the TPU inflatable branch tube, distributing pressure evenly across the entire connection surface. This greatly enhances the compressive strength and peel resistance of the interface, effectively preventing delamination and air leakage at the joint under inflation pressure or external tension. The continuous annular sealing interface provides optimal airtightness, ensuring long-term retention of gas inside the TPU inflatable branch tube, thus improving the overall performance and service life of the product. From a manufacturing perspective, the annular hot-press mold design is simple and reliable, with uniform heating and pressure application, facilitating process control and quality stability, ensuring that every product achieves the same high sealing standard.

[0012] Preferably, the pad is made of non-woven fabric.

[0013] The choice of non-woven fabric as the material for the padding is based on its unique material properties and comprehensive performance advantages. The surface roughness of non-woven fabric provides excellent frictional resistance, preventing relative slippage between the fabric and Velcro during sewing and ensuring even and smooth stitches—key to high-quality sewing. Simultaneously, non-woven fabric has good puncture resistance, allowing sewing machine needles to penetrate easily without excessive pressure. This reduces needle wear and the risk of thread breakage due to excessive puncture resistance. Furthermore, non-woven fabric is economical, easy to cut and process, and ideal for large-scale, one-off applications. Its material typically possesses a degree of flexibility, preventing the introduction of additional rigid points in the layered structure and ensuring the softness and overall comfort of the final connection.

[0014] Preferably, the pad is made of a fabric material.

[0015] By limiting the padding material to woven fabric, the reliable performance and wide applicability of traditional textiles are fully utilized. Fabrics are typically woven from warp and weft yarns, and their surface structure naturally provides excellent adhesion, forming a secure bond with the back of the Velcro and the seams, effectively suppressing displacement during sewing. A wide variety of fabric materials are available, with a broad range of strength, thickness, and coefficient of friction to choose from, allowing for flexible selection of the most suitable padding material based on different TPU tube specifications and strength requirements, achieving a high degree of design flexibility. Mature textile manufacturing processes ensure the quality stability and reliable supply of the woven padding, and its robust and durable characteristics ensure that it is not easily damaged during sewing and subsequent use, enabling it to function stably and sustainably as a functional layer for a long time.

[0016] Preferably, the hook and loop fastener is a hook-and-loop fastener or a loop fastener.

[0017] This feature clarifies the specific interaction method of the connection structure described in this utility model, defining two basic forms of hook and loop fasteners: hook-and-loop fasteners or loop fasteners. This definition indicates that the connection structure is not designed to work with a specific, single hook and loop fastener side, but rather possesses versatility and flexibility. It means that, depending on the type of hook and loop fastener (hook and loop or loop fastener) pre-set on the tent cover, this structure can accordingly select and equip itself with a complementary side (loop or hook and loop fastener) to achieve a secure bond. This design gives product designers and manufacturers greater choice, allowing them to freely decide which hook and loop fastener side to use on this structure based on overall design requirements, cost considerations, or ease of procurement, thus enhancing the applicability and market adaptability of the technical solution.

[0018] Preferably, the structure is used for adhesive bonding with corresponding Velcro on the tent cover.

[0019] This claim clearly articulates the ultimate application purpose and connection object of this utility model, clarifying its functional positioning as a "connector." It specifies that the overall structure connects to the corresponding pre-set Velcro portion on the tent cover via the adhesive action of Velcro, thereby achieving a quick, reliable, and repeatedly detachable connection between the TPU inflation tube and the cover. Compared to traditional sewing or binding fixation, this method offers significant convenience, facilitating both rapid tent setup and takedown, and simplifying the replacement or repair of individual components (such as the TPU inflation tube or cover), reducing the product's total lifecycle maintenance costs. This feature ultimately focuses on enhancing the user experience and practical value of the end product.

[0020] Preferably, a tent inflation tube includes a fabric cover and a Velcro connection structure for the tent inflation tube as described above, wherein the fabric cover has a Velcro portion that mates with the Velcro.

[0021] This protects the overall product advantages brought about by the aforementioned innovative connection structure. Tents equipped with this connection structure make connecting the TPU inflation tubes to the fabric cover exceptionally simple and quick, requiring no complex tools or skills, significantly improving the user's setup and disassembly experience. The improved connection reliability and airtightness directly translate into enhanced overall tent structural stability, thermal insulation performance, and long-term reliability.

[0022] Preferably, an inflatable tent utilizes the Velcro connection structure for the tent inflation tubes as described above.

[0023] This paper emphasizes the application of this utility model in the specific and important field of inflatable tents, highlighting the practical value and industrial significance of the technical solution. Inflatable tents using this structure, thanks to the superior performance of their branch pipe connections, have gained a significant technical advantage in market competition, manifested in easier installation, a more stable structure, and a longer service life.

[0024] The advantages of this utility model compared to the prior art are: The technical solution provided by this utility model brings a series of beneficial technical effects through its specific layered composite structure.

[0025] Firstly, by introducing a padding fabric between the TPU disc and the outer Velcro layer, this structure provides a working base with a texture completely different from the TPU material for the sewing process. The frictional properties of the padding fabric surface make the sewing machine needle more stable during piercing and threading, effectively reducing fabric slippage, uneven stitches, and skipped stitches during sewing. This improves the smoothness and controllability of the sewing operation, laying the foundation for increased production efficiency and product appearance quality.

[0026] Secondly, the TPU disc and the TPU inflation tube are connected by thermoforming, which fuses the two homogeneous materials at the interface, forming a joint with high strength and good sealing performance. This integrated connection helps ensure the structural integrity of the TPU inflation tube when subjected to internal pressure, reducing the risk of air leakage or damage at the connection.

[0027] Furthermore, the stitching seams sew the Velcro and the backing fabric together into a prefabricated, integral component, which is then placed over the TPU disc by the backing fabric. This design provides the Velcro with a strong mechanical anchor point, enhancing its peel strength, and also ensures that the layers do not easily shift during subsequent operation and use, thus improving the overall durability of the product.

[0028] In summary, the design of this connection structure takes into account both the manufacturability of the manufacturing process and the functional reliability of the final product, providing an optional and practical solution for connecting TPU inflatable branch pipes and fabric sleeves. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a structural diagram of a hook and loop fastener connection structure according to an embodiment of the present invention.

[0031] Figure 2 This is a partial cross-sectional view of the tent inflation tube according to an embodiment of the present invention.

[0032] Figure 3 This is a structural diagram of a tent inflation tube according to an embodiment of the present invention.

[0033] Labeling explanation: 1-TPU inflatable branch tube, 2-TPU round piece, 3-pad cloth, 4-Hook and loop fastener, 6-cloth cover, 7-Hook and loop fastener part. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0038] The technical solutions in this application will now be described with reference to the accompanying drawings. Example 1

[0039] This embodiment provides a Velcro connection structure for tent inflation hoses, including: TPU inflatable branch tube 1; The TPU disc 2 is integrally connected to the end surface of the TPU inflation tube 1 by hot pressing and fusion. Pad 3, which covers the surface of the TPU disc 2 on the side facing away from the TPU inflation tube 1; Velcro 4 covers the surface of the pad 3 on the side facing away from the TPU disc 2; The stitches pass through the Velcro 4 and the padding 3 in sequence, thereby fixing the Velcro 4 and the padding 3 together as a whole.

[0040] By introducing the key component, padding fabric 3, the technical challenges of slippage, skipped stitches, and uneven stitching encountered when sewing directly on a smooth TPU surface are effectively solved. Padding fabric 3 covers the TPU disc 2, significantly increasing the coefficient of friction in the sewing area, allowing the sewing needle to move smoothly and improving the production efficiency and first-pass yield of the hook and loop fastener 4 sewing process. The TPU disc 2 and the TPU inflatable branch tube 1 are connected using a hot-pressing fusion process, forming a sealed interface with good airtightness and high mechanical strength. The sewing stitches sequentially penetrate the hook and loop fastener 4 and padding fabric 3, tightly combining them into a unified prefabricated component. This component is covered and attached to the TPU disc 2 by the padding fabric 3, ensuring that misalignment between layers does not easily occur during subsequent hot-pressing and allowing the hook and loop fastener 4 to achieve uniform and firm adhesion. The entire structure has a clear interlayer relationship, suitable for large-scale mass production, and its core lies in the innovative structural combination of "padding fabric 3 + sewing".

[0041] In this embodiment, the TPU disc 2 is circular.

[0042] The circular design, devoid of sharp corners, allows for a more uniform stress distribution during hot-pressing and fusion, reducing the risk of edge lifting or incomplete fusion due to stress concentration. This improves the sealing reliability and aesthetics of the connection interface. The circular shape naturally aligns with the stitch path, resulting in smoother and more natural threading, which helps ensure consistent and uniform sewing quality. Furthermore, the circular shape's good symmetry eliminates the need for a specific orientation when installing it at the end of the TPU inflation tube 1, simplifying the assembly process and reducing production complexity.

[0043] In this embodiment, the area of ​​the pad 3 is greater than or equal to the area of ​​the TPU disc 2.

[0044] This feature ensures that the pad 3 completely covers the underlying TPU disc 2, providing a guarantee for the core sewing process. Full coverage means that throughout the entire working area of ​​sewing the Velcro 4, the sewing needle always pierces the surface material of the pad 3, avoiding direct contact between the needle and the smooth TPU surface. This reduces quality problems such as skipped stitches, broken threads, or skewing caused by the slippery TPU material. The sufficiently large area of ​​the pad 3 provides a more ample safety margin for the sewing operation. Even with minor alignment deviations, it ensures that the sewing area remains within the effective range of the pad 3, enhancing the tolerance and stability of the production process. Example 2

[0045] This embodiment further defines and optimizes the detailed features of the connection structure based on embodiment 1.

[0046] In this embodiment, the fusion area between the TPU disc 2 and the TPU inflation tube 1 is annular.

[0047] The design of defining the fusion zone as an annular shape offers significant mechanical and sealing advantages. The annular fusion zone forms a closed, continuous sealing ring. This structure can evenly withstand radial stress from the inside of the TPU inflation tube 1, distributing pressure uniformly across the entire joint surface. This enhances the compressive strength and peel resistance of the interface, helping to prevent delamination and air leakage at the joint under inflation pressure or external tension. The continuous annular sealing interface provides excellent airtightness, ensuring the retention of gas inside the TPU inflation tube 1. From a manufacturing perspective, the annular hot-press mold design is simple and reliable, ensuring uniform heating and pressure application, which is beneficial for process control and quality stability.

[0048] In this embodiment, the pad 3 is made of non-woven fabric.

[0049] The choice of non-woven fabric as the material for padding 3 is based on its unique material properties and comprehensive performance advantages. The non-woven fabric surface has just the right level of roughness, providing excellent frictional resistance, which helps prevent relative slippage between the non-woven fabric and the Velcro 4 during sewing, ensuring smooth and even stitches. Simultaneously, non-woven fabric itself has good puncture resistance, allowing sewing machine needles to easily penetrate without excessive pressure. This reduces needle wear and lowers the risk of thread breakage due to excessive puncture resistance. Furthermore, non-woven fabric is economical, easy to cut and process, and suitable for large-scale applications. Its material typically possesses a certain degree of flexibility, preventing the introduction of additional rigid points in the layered structure and ensuring the softness of the final connection.

[0050] In this embodiment, the pad 3 is made of fabric material.

[0051] By limiting the padding material 3 to a woven fabric, the reliable performance and wide applicability of traditional textiles are fully utilized. Fabrics are typically woven from warp and weft yarns, and their surface structure naturally provides excellent adhesion, forming a stable bond with the back of the Velcro 4 and the seams, effectively suppressing displacement during sewing. A wide variety of fabric materials are available, with a broad range of strength, thickness, and coefficient of friction to choose from. The most suitable padding material 3 can be flexibly selected according to different TPU branch tube 1 specifications and strength requirements, achieving design flexibility. Mature textile manufacturing processes ensure the quality stability and reliable supply of the woven padding 3, and its robust and durable characteristics ensure that it is not easily damaged during sewing and subsequent use.

[0052] In this embodiment, the hook and loop fastener 4 is a hook-and-loop fastener or a loop fastener.

[0053] This feature clarifies the specific interaction method of the connection structure, defining two basic forms of the Velcro 4. This limitation indicates that the connection structure does not mate with a specific single Velcro side, but rather possesses versatility and flexibility. It means that, depending on the type of Velcro pre-installed on the tent cover, this structure can be equipped with complementary sides to achieve a secure bond. This design gives product designers and manufacturers greater choice, allowing them to freely decide which Velcro 4 side to use on this structure based on overall design requirements, cost considerations, or sourcing convenience, enhancing the applicability of this technical solution. Example 3

[0054] This embodiment provides a specific product solution that applies the above-described connection structure.

[0055] A tent inflation tube includes a fabric cover 6 and a Velcro connection structure for the tent inflation tube as described in Embodiment 1 or 2, wherein the fabric cover 6 is provided with a Velcro portion 7 that mates with Velcro 4.

[0056] This tent integrates the aforementioned innovative connection structure, resulting in overall performance advantages. The connection between the TPU inflatable tube 1 and the fabric cover 6 is simplified and quick, requiring no complex tools or skills, thus improving the user's setup and disassembly experience. The improved connection reliability and airtightness translate into enhanced overall tent structural stability. This solution protects the overall product value derived from the core innovative structure. Example 4

[0057] An inflatable tent utilizes a Velcro connection structure for the tent inflation tubes as described in Embodiment 1 or 2.

[0058] This inflatable tent demonstrates the practical value and industrial significance of the described technical solution in specific applications. Inflatable tents using this structure, thanks to the performance of their branch pipe 1 connections, exhibit features such as easier installation, a more stable structure, and a longer service life. This embodiment emphasizes the successful implementation of this utility model in end products.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Velcro connection structure for a tent inflation hose, characterized in that, include: TPU inflation tube (1); The TPU disc (2) is integrally connected to the end surface of the TPU inflation tube (1) by hot pressing and fusion. A pad (3) is placed on the side surface of the TPU disc (2) facing away from the TPU inflation tube (1); Velcro (4) covers the side surface of the pad (3) facing away from the TPU disc (2); The stitches pass through the Velcro (4) and the padding (3) in sequence, thereby fixing the Velcro (4) and the padding (3) together as a whole.

2. The Velcro connection structure for a tent inflation tube according to claim 1, characterized in that, The TPU disc (2) is circular.

3. A Velcro connection structure for a tent inflation tube according to claim 1 or 2, characterized in that, The area of ​​the pad (3) is greater than or equal to the area of ​​the TPU disc (2).

4. The Velcro connection structure for a tent inflation tube according to claim 1, characterized in that, The fusion area between the TPU disc (2) and the TPU inflation tube (1) is annular.

5. The Velcro connection structure for a tent inflation tube according to claim 1, characterized in that, The pad (3) is made of non-woven fabric.

6. The Velcro connection structure for a tent inflation tube according to claim 1, characterized in that, The pad (3) is made of fabric material.

7. The Velcro connection structure for a tent inflation tube according to claim 1, characterized in that, The hook and loop fastener (4) is either hook-on hook and loop fastener or loop fastener with a loop side.

8. The Velcro connection structure for a tent inflation tube according to claim 1, characterized in that, The structure is used for adhesive bonding with corresponding Velcro straps on the tent cover.

9. A tent inflation tube, characterized in that, Includes a fabric cover and a Velcro connection structure for a tent inflation tube as described in any one of claims 1-8, wherein the fabric cover has a Velcro portion (7) that mates with the Velcro (4).

10. An inflatable tent, characterized in that, The Velcro connection structure for tent inflation tubes as described in any one of claims 1-8 is applied.

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