Explosion-proof nylon zipper with multiple layers of zipper teeth

Abstract

The utility model relates to an explosion-proof nylon zipper with multiple layers of zipper teeth, which comprises two cloth belts arranged oppositely, zipper tooth groups are arranged on the sides, close to each other, of the two cloth belts, a puller is arranged between the two zipper tooth groups, and the puller is used for controlling the two zipper tooth groups to be meshed or separated. The zipper tooth set comprises at least three zipper teeth, at least two zipper teeth are located on one side face of the cloth belt, at least one zipper tooth is located on the other side face of the cloth belt, and the multiple zipper teeth located on the same side of the cloth belt are arranged in a stacked mode. And the capability of resisting external force is also improved, so that accidental opening is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to zip fastener technical field, especially a kind of anti-explosion nylon zip fastener with multiple chain teeth. BACKGROUND

[0002] With the development of textile and material science, as a commonly used connector, zip fastener has been widely used in clothing, luggage, footwear and other daily necessities. The traditional nylon zip fastener is mainly composed of two cloth tapes and a single row of chain teeth arranged on them. By operating the puller, the chain teeth can be engaged or separated, realizing the opening and closing function. However, in some special application scenarios, such as needing to withstand large external forces, preventing accidental opening or improving safety performance, the traditional design of zip fastener often cannot meet the requirements.

[0003] In particular, in some specific industries, such as anti-explosion clothing and luggage or high-pressure protective equipment, higher requirements are placed on the safety and stability of zip fasteners. Products in these fields require that the zip fastener should not accidentally open or be damaged when subjected to impact, pressure changes or severe friction, thereby ensuring the safety of the user.

[0004] Although the improved zip fastener in the prior art has enhanced strength and durability to some extent, such as using stronger materials, increasing the thickness of the zip fastener or changing the shape of the chain teeth, there are still certain limitations. In particular, when it comes to high-level safety standards such as explosion-proof and pressure resistance, the traditional single-row chain tooth structure cannot provide sufficient protection. Therefore, to address the above technical problems, the present application proposes an anti-explosion nylon zip fastener with multiple chain teeth, aiming to improve the explosion-proof performance of nylon zip fasteners. SUMMARY

[0005] The utility model proposes an anti-explosion nylon zip fastener with multiple chain teeth, which solves the above-mentioned problems existing in the use of the prior art.

[0006] The technical solution of the utility model is as follows: an anti-explosion nylon zip fastener with multiple chain teeth, comprising two cloth tapes arranged oppositely, each cloth tape is provided with a chain tooth group on one side close to the other cloth tape, a puller is arranged between the two chain tooth groups, the puller is used to control the two chain tooth groups to engage or separate, each chain tooth group comprises at least three chain teeth, at least two chain teeth are located on one side of the cloth tape, and at least one chain tooth is located on the other side of the cloth tape, and the multiple chain teeth located on the same side of the cloth tape are arranged in a stacked manner.

[0007] Preferably, the chain tooth comprises a spiral nylon wire tooth and a chain tooth core wire located inside the spiral nylon wire tooth.

[0008] Preferably, the cloth tape is provided with sewing threads for sewing all the spiral nylon teeth and the chain tooth core wires on both sides on the cloth tape.

[0009] Preferably, the puller is integrally formed with a fixing ring, and the puller is movably provided with a pull tab on the fixing ring.

[0010] Preferably, the pull tab is integrally formed with a resisting block towards the chain tooth group at one end away from the fixing ring.

[0011] Preferably, the puller is provided with a fastening notch at one side of the puller below the pull tab, the pull tab is provided with a clamping block for clamping into the fastening notch, and the puller is integrally formed with an arc-shaped stopper at a position of the fastening notch close to the opening.

[0012] Preferably, the resisting block is provided with a plurality of anti-skid clamping teeth towards the chain tooth group.

[0013] In summary, the utility model has the advantages of:

[0014] 1. The utility model discloses a design of at least three layers of chain teeth, at least two of which are located on one side of the cloth tape and at least one of which is located on the other side of the cloth tape, and are arranged in a stacked manner, which significantly improves the explosion-proof performance of the zipper.

[0015] 2. The spiral nylon teeth contain chain tooth core wires, which are firmly sewn on both sides of the cloth tape by sewing threads, effectively ensuring the structural stability and strength of the spiral nylon teeth.

[0016] 3. The pull tab is integrally formed with a resisting block towards the chain tooth group at one end away from the fixing ring, which maintains a proper gap between the pull tab and the chain teeth, facilitates the user to pinch the pull tab for operation, and lays a foundation for the subsequent safety locking mechanism.

[0017] 4. The fastening notch on one side of the puller and the clamping block on the pull tab cooperate with the arc-shaped stopper, which provides a simple and effective locking mechanism to prevent the puller from moving accidentally due to non-human factors (such as too many items in the bag), improves the safety of use, and the plurality of anti-skid clamping teeth on the resisting block can better resist the chain tooth group after the pull tab is pressed and locked, increase the friction, further prevent the puller from accidentally sliding, and ensure the stability and safety during use. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 It is a schematic diagram of the structure of the present application without one side cloth tape and chain tooth group.

[0021] Figure 3 It is Figure 1 It is a schematic diagram of the structure when observed from the underside.

[0022] Figure 4 It is a schematic diagram of the cooperation structure of the spiral nylon wire teeth and the chain tooth core wire in the present application.

[0023] Figure 5 It is a schematic diagram of the local structure of one side cloth tape of the present application.

[0024] Figure 6 It is a schematic diagram of the cooperation structure of the puller and the puller in the present application.

[0025] Figure 7 It is a schematic diagram of the structure of the puller in the present application.

[0026] Figure 8 It is a schematic diagram of the structure of the puller in the present application.

[0027] In the figure: 1, cloth tape; 2, chain tooth; 21, spiral nylon wire tooth; 22, chain tooth core wire; 3, suture; 4, puller; 41, fixed ring; 42, fastening notch; 43, arc-shaped stop block; 5, puller; 51, abutting block; 52, clamping block; 53, anti-skid clamping tooth. DETAILED DESCRIPTION

[0028] The drawings needed to be used in the description of the embodiments of the present application will be briefly introduced as follows. Figures 1-8 The technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, and are not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] EMBODIMENT:

[0030] For example Figures 1 to 8The utility model discloses a kind of anti-explosion nylon zippers with multi-layer chain teeth, including two cloth tapes 1 of opposite arrangement, two The cloth tape 1 is equipped with chain tooth group on one side close to, zipper puller 4 is arranged between two chain tooth groups, zipper puller 4 is used to control two chain tooth groups to bite or separate, wherein each chain tooth group includes at least three chain teeth 2, and at least two chain teeth 2 of each chain tooth group are located on the side surface of cloth tape 1 and at least one chain tooth 2 is located on the other side surface of cloth tape 1, multiple chain teeth 2 on the same side of cloth tape 1 are arranged in a stack, and the structure is designed to enhance the impact resistance and explosion-proof performance of zipper by multiple chain teeth 2. Specifically, chain tooth group is composed of at least three chain teeth, these chain teeth 2 are distributed on the two sides of cloth tape 1, arranged in a stack, greatly enhance the resistance when facing external pressure of zipper, to prevent accidental opening.

[0031] In the embodiment, specifically, one side of each cloth tape 1 has two chain teeth 2, and the other side of each cloth tape 1 has one chain tooth 2. Of course, two chain teeth 2 can also be provided on both side surfaces of the cloth tape 1.

[0032] Further, the chain tooth 2 includes helical nylon wire teeth 21 and chain tooth core wire 22 located in the helical nylon wire teeth 21, and the cloth tape 1 is provided with a suture 3 for suturing all helical nylon wire teeth 21 and chain tooth core wire 22 on both sides on the cloth tape 1, and the structure stability and structural strength of the helical nylon wire teeth 21 can be effectively ensured by the setting of the chain tooth core wire 22 and the fixation of the suture 3.

[0033] In addition, it also needs to be explained here that the color of the helical nylon wire teeth 21, the suture 3 and the cloth tape 1 can be arbitrarily selected and changed, and the same color can be selected, or the color can be selected, so as to increase the diversity and aesthetic degree of the whole.

[0034] In the utility model, the fixed ring 41 is integrally formed on the zipper puller 4, and the pull tab 5 is movably arranged on the fixed ring 41, and the pull tab 5 is used to drive the zipper puller 4 to move.

[0035] Further, the pull tab 5 is integrally formed with a resisting block 51 towards the chain tooth group at one end away from the fixed ring 41, and the existence of the resisting block 51 makes the pull tab 5 and the chain tooth 2 maintain appropriate gap, which is convenient for the user to pinch the pull tab 5 to operate, and also lays a foundation for the subsequent safety locking mechanism.

[0036] Further, the fastening notch 42 is formed on one side of the puller 4 below the pull tab 5, the pull tab 5 is provided with a clamping block 52 for clamping into the fastening notch 42, and the puller 4 is integrally formed with an arc-shaped stop block 43 at the position of the fastening notch 42 close to the opening, the clamping block 52 needs a certain force to completely enter the fastening notch 42 by overcoming the arc-shaped stop block 43, and the abutting block 51 is provided with a plurality of anti-skid clamping teeth 53 facing the chain tooth group.

[0037] When the zipper needs to be opened and closed, the pull tab 5 is pulled to drive the puller 4 to move along the chain tooth group, so as to realize the engagement or separation of the chain teeth 2. In the closed state of the zipper, the pull tab 5 can be pressed down and enter the fastening notch 42 of the puller 4 through the clamping block 52, at this time the anti-skid clamping teeth 53 on the abutting block 51 will closely fit the chain tooth group, forming a physical locking mechanism, effectively preventing the puller 4 from accidentally sliding due to the pressure of the internal items, thereby further improving the explosion-proof performance of the nylon zipper.

[0038] It should be pointed out that the terms such as "front", "rear", "vertical", "horizontal" and the like indicated by the utility model indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the protection scope of the utility model.

[0039] The above is only a preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-layered explosion-proof nylon zipper, comprising two fabric strips arranged opposite each other, each of the two fabric strips having a tooth group on its adjacent side, and a pull head provided between the two tooth groups, the pull head being used to control the two tooth groups to engage or disengage, characterized in that: The chain tooth assembly includes at least three chain teeth, with at least two of the chain teeth located on one side of the fabric belt and at least one of the chain teeth located on the other side of the fabric belt, and the multiple chain teeth located on the same side of the fabric belt are stacked.

2. The explosion-proof nylon zipper with multi-layered teeth according to claim 1, characterized in that: The chain teeth include helical nylon filament teeth and chain tooth cores located within the helical nylon filament teeth.

3. The explosion-proof nylon zipper with multi-layered teeth according to claim 2, characterized in that: The fabric tape is provided with stitching for sewing all the spiral nylon filament teeth and chain core threads on both sides onto the fabric tape.

4. The explosion-proof nylon zipper with multi-layered teeth according to claim 1, characterized in that: The pull head has an integrally formed fixing ring, and a pull tab is movably disposed on the fixing ring.

5. The explosion-proof nylon zipper with multi-layered teeth according to claim 4, characterized in that: The end of the pull tab away from the fixed ring is integrally formed with a retaining block facing the chain tooth assembly.

6. The explosion-proof nylon zipper with multi-layered teeth according to claim 5, characterized in that: The pull head has a fastening notch on one side, located below the pull tab. The pull tab has a locking block for engaging the fastening notch. The pull head has an integrally formed arc-shaped stop block near the opening of the fastening notch.

7. The explosion-proof nylon zipper with multi-layered teeth according to claim 6, characterized in that: The abutment block has several anti-slip teeth facing the chain tooth assembly.

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