Single-face double-layer anti-explosion zipper with side elastic cloth belt

Abstract

The utility model relates to the technical field of zippers, in particular to a single-sided double-layer anti-explosion zipper with a side elastic cloth belt, which is characterized in that the tension resistance, fracture resistance and low elongation of the cloth belt are remarkably improved by optimizing the parameters of warp yarns and weft yarns of the elastic cloth belt (the yarn count of the warp yarns is 81dTex-87dTex, the warp density is 16 pieces per inch to 20 pieces per inch, and the weft yarns are high-elasticity monofilaments); and the zipper is endowed with higher impact resistance. Besides, the fixing strip is arranged between the upper chain rack and the lower chain rack, it is ensured that the distance between the chain teeth is stable, the problem that the chain teeth are staggered due to external force is effectively solved, the zipper is more stable and reliable, the overall anti-explosion performance and use smoothness are greatly improved, and the anti-explosion zipper is particularly suitable for application scenes needing high-strength protection.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, specifically a single-sided double-layer explosion-proof zipper with side elastic fabric tape. Background Technology

[0002] The market currently offers a wide variety of zippers, including single-layer and double-layer zippers. While traditional double-layer zippers offer improved tensile strength to some extent, they still suffer from poor waterproofing and a tendency to jam. This is especially true for business professionals and travelers who frequently carry important items, placing higher demands on the zipper's shockproof performance and durability. Existing zipper structures often fail to effectively address the misalignment of teeth under high stress conditions, which not only affects smooth zipper use but can also lead to overall zipper failure or damage.

[0003] Improving the burst resistance of zippers under high stress environments and preventing misalignment between zipper teeth are urgent problems that need to be solved. Utility Model Content

[0004] The purpose of this invention is to provide a single-sided double-layer explosion-proof zipper with side elastic fabric tape, which not only greatly improves the overall explosion-proof performance but also provides a smoother user experience. It is particularly suitable for application scenarios that require high-strength protection, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-sided double-layer explosion-proof zipper with side elastic fabric tape, comprising two elastic fabric tapes, each elastic fabric tape being connected to a toothed strip group, and a zipper head being provided on each of the two toothed strip groups. The warp yarns of the two elastic fabric tapes have a count of 81dTex-87dTex, a warp density of 16-20 threads / inch, and the warp yarns are multifilaments formed by bundles of 8-10 monofilaments, while the weft yarns are high-elastic monofilaments. The thickness of the two elastic fabric tapes is 1-1.25mm.

[0006] Preferably, the rack assembly includes a stacked upper rack and a lower rack, both of which are provided with chain teeth.

[0007] Preferably, a fixing strip is provided between the upper chain rack and the lower chain rack to fix the spacing between the chain teeth.

[0008] Preferably, the elastic fabric belt, lower chain rack, fixing strip, and upper chain rack are arranged sequentially from bottom to top.

[0009] Preferably, the fixing strip includes a grid body and fixing threads, and the fixing threads are sewn onto the grid body.

[0010] Preferably, the main body of the grid is stitched with multiple sets of fixed threads, which are arranged in parallel to each other.

[0011] Preferably, the fixing strip includes an intermediate sheet layer, and the two sides of the intermediate sheet layer are provided with multiple sets of evenly distributed limiting ridges.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention significantly improves the tensile strength, tear resistance, and low elongation of the elastic tape by optimizing the warp and weft yarn parameters (warp yarn count 81dTex-87dTex, warp density 16-20 threads / inch, weft yarn is high-elasticity monofilament), giving the zipper stronger impact resistance. Furthermore, by setting a fixing strip between the upper and lower chain teeth, the spacing between the chain teeth is ensured to be stable, effectively preventing misalignment of the chain teeth caused by external forces, making the zipper more stable and reliable. This greatly improves the overall explosion-proof performance and smoothness of use, making it particularly suitable for applications requiring high-strength protection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the elastic fabric tape of this utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the double-layer explosion-proof zipper of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the double-layer explosion-proof zipper of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the upper chain rack, lower chain rack, and fixing strip of this utility model;

[0018] Figure 5 This is a schematic diagram of the fixing strip in Embodiment 1 of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the fixing strip in Embodiment 2 of this utility model.

[0020] In the diagram: 1. Elastic fabric tape; 2. Toothed strip assembly; 3. Zipper head; 4. Chain teeth; 201. Upper chain toothed strip; 202. Lower chain toothed strip; 203. Fixing strip; 204. Grille body; 205. Fixing thread; 206. Middle layer; 207. Limiting ridge. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-5 This utility model provides a technical solution: a single-sided double-layer explosion-proof zipper with side elastic fabric tape, including two elastic fabric tapes 1, each of the two elastic fabric tapes 1 is connected to a toothed strip group 2, and the two toothed strip groups 2 are provided with zipper heads 3, which can make the two toothed strip groups 2 engage or disengage through the zipper heads 3.

[0024] The two elastic fabric tapes are the main components of this explosion-proof zipper. Each elastic tape has a warp yarn count of 81dTex-87dTex, a warp density of 16-20 threads / inch, and a weft yarn of high-elasticity monofilament with a thickness controlled between 1-1.25mm. Furthermore, when weaving the tape, the warp and weft yarns are interwoven one by one, resulting in a plain weave tape with a width of 16-17.78mm. This design gives the tape high tensile strength, tear resistance, low elongation, and good abrasion resistance.

[0025] In this zipper tape, by setting the warp yarn count, warp density, weft yarn count, and weft density of the yarns constituting the tape, it is possible to achieve a lighter tape while effectively improving the tape's own strength, especially the lateral tensile strength along its width. This greatly enhances the tape's durability, giving it high tensile strength, tear resistance, and low elongation. It also imparts a certain degree of elasticity to the zipper, allowing it to better adapt to objects of different shapes and sizes. The elasticity of the tape also provides some cushioning when the zipper is under stress, reducing damage caused by external impacts.

[0026] The single-sided double-layer explosion-proof zipper with side elastic fabric tape not only significantly improves the tensile strength, tear resistance, and low elongation of the tape, but also effectively solves problems such as easy jamming and misalignment of chain teeth in traditional zippers, providing a smoother and more reliable user experience. It is especially suitable for applications requiring high-strength protection, such as business travel and outdoor adventures.

[0027] Furthermore, the toothed assembly 2 includes stacked upper chain tooth 201 and lower chain tooth 202, both of which are provided with chain teeth 4. The chain teeth of the upper and lower chain tooth 201 are all formed by spiral winding and hot pressing of nylon yarn. This structure is simple to manufacture, low in cost, and widely used in the zipper industry.

[0028] A fixing strip 203 for fixing the tooth spacing is provided between the upper chain rack 201 and the lower chain rack 202. The elastic fabric belt 1, the lower chain rack 202, the fixing strip 203 and the upper chain rack 201 are arranged in sequence from bottom to top.

[0029] The fixing strip prevents the chain teeth from expanding unnecessarily, resulting in a more stable structure. This increases the meshing strength between the chain teeth, enhancing the overall explosion-proof performance of the zipper. Furthermore, the fixed teeth of the upper and lower chain racks effectively reduce misalignment, making operation smoother. The fabric tape, lower chain rack, fixing strip, and upper chain rack are arranged in layers and sewn together with thread. This structure integrates the fabric tape, lower chain rack, fixing strip, and upper chain rack into a single unit, creating a tighter connection between the upper and lower chain racks. This shared chain rack group effectively improves the zipper's overall integrity and stability, distributing force evenly across the entire zipper and further enhancing the meshing strength between the chain teeth, thus significantly improving the zipper's explosion-proof performance. The aligned teeth of the upper and lower chain racks within the same chain rack group reduce misalignment and ensure smoother operation.

[0030] Specifically, the fixing strip 203 includes a grid body 204 and fixing threads 205. The fixing threads 205 are sewn onto the grid body 204. This structure is simple to manufacture and has a good fit with the upper and lower chain racks, making it easy to produce. Multiple sets of fixing threads 205 are sewn onto the grid body 204. These sets of fixing threads 205 are arranged parallel to each other and are respectively located on both sides and the center of the grid body. This mechanism is stable, ensuring that the grid body is subjected to balanced and stable forces.

[0031] Example 2

[0032] like Figure 6 As shown, in this embodiment, the difference from the previous one is that the fixing strip 203 includes an intermediate sheet 206. The two sides of the intermediate sheet 206 are provided with multiple sets of evenly distributed limiting protrusions 207. When the upper chain rack and the lower chain rack are attached and fixed to the fixing strip, the chain teeth are restricted between two adjacent limiting protrusions, thus making the position of the chain teeth stable and preventing the chain teeth from shifting and loosening when subjected to force after meshing, thereby preventing the chain from bursting.

[0033] In summary, the zipper proposed in this embodiment significantly improves the zipper's tensile strength and explosion-proof capability, enabling it to withstand greater tensile and impact forces. It solves the problem of traditional zippers easily getting stuck, providing a smooth user experience. Featuring a double-layer tooth structure, with both layers of teeth typically on the same side, it enhances the zipper's strength and protective capabilities. Due to its double-layer structure, it greatly increases the difficulty of breaking the zipper. For example, when faced with punctures from sharp objects or forceful pulling, the double-layer zipper provides better protection, making it difficult for thieves to open, thereby improving security.

[0034] Made of tough material with tightly packed and sturdy teeth, this double-layer zipper is wear-resistant and waterproof, making it more reliable and durable than ordinary zippers. Under frequent use and heavy pressure, the double-layer zipper better maintains its shape and function, reducing deformation, damage, or loose zipper teeth.

[0035] 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 side elastic tape one-side double-layer anti-explosion zipper, comprising two elastic tapes (1), each of the two elastic tapes (1) is connected with a set of interlocking teeth (2), and zipper heads (3) are arranged on the two sets of interlocking teeth (2), characterized in that: The warp yarn of the two elastic cloth belts (1) has a yarn count of 81 dTex-87 dTex, a warp density of 16-20 per inch, and the warp yarn is a multifilament formed by 8-10 monofilaments, and the weft yarn is a high-elastic monofilament; The thickness of the two elastic cloth belts (1) is 1-1.25 mm.

2. The side elastic tape single-sided double-layer anti-explosion zipper according to claim 1, characterized in that: The gear rack group (2) comprises a laminated upper chain rack (201) and a lower chain rack (202), and the upper chain rack (201) and the lower chain rack (202) are both provided with sprocket teeth (4).

3. The side elastic tape single-sided double-layer anti-explosion zipper according to claim 2, characterized in that: A fixing strip (203) is arranged between the upper chain rack (201) and the lower chain rack (202) to fix the distance between the sprocket teeth.

4. The side elastic tape single-sided double-layer anti-explosion zipper according to claim 3, characterized in that: The elastic cloth belt (1), the lower chain rack (202), the fixing strip (203) and the upper chain rack (201) are sequentially arranged from bottom to top.

5. The side elastic tape single-sided double-layer anti-explosion zipper according to claim 3, characterized in that: The fixing strip (203) comprises a grid main body (204) and a fixing thread (205), and the fixing thread (205) is sewn to the grid main body (204).

6. The side elastic tape single-sided double-layer anti-explosion zipper according to claim 5, characterized in that: The grid main body (204) is sewn with multiple groups of fixing threads (205), and the multiple groups of fixing threads (205) are arranged in parallel with each other.

7. The side elastic tape single-sided double-layered anti-explosion zipper according to claim 3, characterized in that: The fixing strip (203) comprises an intermediate sheet layer (206), and the two surfaces of the intermediate sheet layer (206) are provided with multiple groups of limiting convex patterns (207) uniformly distributed.

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