Flame-retardant nylon zipper

Abstract

The utility model discloses a flame-retardant nylon zipper which comprises two symmetrically-distributed zipper belts (1), zipper teeth (2) are arranged on the chaining side of each zipper belt (1), the flame-retardant nylon zipper further comprises a zipper head (3) used for zipping up the zipper teeth (2), and the flame-retardant nylon zipper is characterized in that flame-retardant wear-resistant layers (4) located on the side faces of the zipper teeth (2) are arranged on the inner sides and the outer sides of the zipper belts (1); the inner side of each zipper belt (1) is further provided with an L-shaped sealing baffle (5) which is matched with the zipper head (3) and made of flame retardant materials, the end face of one L-shaped sealing baffle (5) is provided with a sealing plug connector (6) with the cross section of a C-shaped structure, and the sealing plug connector (6) is matched with the end face of the other L-shaped sealing baffle (5). The flame-retardant fireproof cable has the characteristic that the flame-retardant fireproof effect can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a nylon zipper, in particular to a flame-retardant nylon zipper. Background Art

[0002] Nylon zippers are a type of zipper, primarily consisting of a zipper belt, chain elements, and a zipper pull. The chain elements are made of nylon monofilament wrapped around a central cord through a heated die. The belt is woven from cotton yarn into a cloth tape, and the chain elements are secured to the side of the belt with a fixed thread. Nylon zippers are widely used in clothing, luggage, and other fields. In certain clothing applications, such as firefighter uniforms, excellent fire retardancy is required to enhance safety. Due to the physical properties of nylon, nylon zippers can ignite at high temperatures. To expand the application range of nylon zippers, a common method is to spray flame retardants on the surface of the nylon zipper elements. However, the zipper pull's frequent movement causes friction with the nylon zipper's chain elements. This prolonged movement can wear away the flame retardant coating, compromising the overall flame retardancy of the nylon zipper. Furthermore, when the two cooperating chain elements are linked, a gap exists between them, allowing flames from the outside to penetrate the garment, resulting in poor flame retardancy. Therefore, the existing technology has the problem of poor flame retardant and fireproof effect. Utility Model Content

[0003] The purpose of the utility model is to provide a flame-retardant nylon zipper, which has the characteristic of effectively improving the flame-retardant and fire-proof effect.

[0004] The technical solution of the present utility model is: a flame-retardant nylon zipper, comprising two symmetrically distributed chain belts, each chain belt having chain teeth on its linking side, and also comprising a zipper head for pulling and closing the chain teeth, wherein chain teeth are provided on both the inner and outer sides of the chain belt; the inner side of each chain belt is also provided with an L-shaped sealing baffle made of flame-retardant material that matches the zipper head, wherein the end face of one of the L-shaped sealing baffles is provided with a sealing connector with a C-shaped cross-section, and the sealing connector matches the end face of the other L-shaped sealing baffle.

[0005] In the aforementioned flame-retardant nylon zipper, a plurality of magnet columns are embedded in the inner bottom surface of the sealing connector, and a plurality of magnet pieces matching the magnet columns are embedded in the end surface of the other L-shaped sealing baffle.

[0006] In the aforementioned flame-retardant nylon zipper, the inner and outer wall surfaces of the other L-shaped sealing baffle are also provided with an intumescent fire-retardant coating.

[0007] In the aforementioned flame-retardant nylon zipper, the surface of the chain elements is provided with a fire-retardant coating and a wear-resistant coating in sequence from the inside to the outside.

[0008] Compared with the prior art, the utility model has the following advantages:

[0009] 1) By arranging flame retardant and wear-resistant layers on both the inner and outer sides of the chain belt, the fire retardant performance of the chain belt can be improved; by arranging fire retardant and wear-resistant laminated coatings on the surface of the chain teeth from the inside to the outside, the wear resistance and fire resistance can be effectively improved, and the fire retardant performance of the nylon chain teeth can be maintained for a longer time.

[0010] 2) An L-shaped sealing baffle made of flame-retardant material is provided on the inner side of each chain belt to match the zipper head. A sealing connector is provided on the side end face of one of the L-shaped sealing baffles to form a sealed cavity together with the other L-shaped sealing baffle, thereby forming a second layer of sealed flame-retardant protection on the inner side of the nylon zipper chain belt, effectively improving the fire-retardant performance of the nylon zipper.

[0011] In summary, the utility model has the characteristic of being able to effectively improve the flame retardant and fireproof effects.

[0012] In addition, the utility model also embeds a magnetic attraction column on the inner bottom surface of the sealing connector and arranges a matching magnetic sheet on the end face of another L-shaped sealing baffle. The two cooperate with each other to ensure a stable connection and good sealing performance of the two L-shaped sealing baffles. In addition, an intumescent fire-retardant coating is arranged on the inner and outer wall surfaces of the L-shaped sealing baffle, which can expand and flame-retardant when encountering fire, thereby further improving the sealing performance between the L-shaped sealing baffle and the sealing connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a side view of the present utility model.

[0015] The markings in the attached drawings are: 1-chain belt, 2-chain teeth, 3-zipper head, 4-flame retardant and wear-resistant layer, 5-L-shaped sealing baffle, 6-sealing connector, 7-magnetic column, 8-magnet sheet, 9-expanding fire retardant coating. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0017] Embodiment. A flame retardant nylon zipper, comprising: Figure 1-2As shown, it includes two symmetrically distributed chain belts 1, each chain belt 1 is provided with a chain tooth 2 on the linking side, and also includes a zipper head 3 for pulling and closing the chain tooth 2, and the inner and outer sides of the chain belt 1 are provided with a flame retardant and wear-resistant layer 4 located on the side of the chain tooth 2); the inner side of each chain belt 1 is also provided with an L-shaped sealing baffle 5 of a flame retardant material matching the zipper head 3, and the end face of one of the L-shaped sealing baffles 5 is provided with a sealing connector 6 with a C-shaped cross-section, and the sealing connector 6 is matched with the end face of the other L-shaped sealing baffle 5.

[0018] A plurality of magnet columns 7 are embedded in the inner bottom surface of the sealing plug-in component 6 , and a plurality of magnet pieces 8 matching with the magnet columns 7 are embedded in the end surface of the other L-shaped sealing baffle 5 .

[0019] The inner and outer wall surfaces of the other L-shaped sealing baffle 5 are also provided with an intumescent fire retardant coating 9 .

[0020] The surface of the chain teeth 2 is provided with a fire retardant coating and a wear-resistant coating in sequence from the inside to the outside.

[0021] The flame retardant and wear-resistant layer can be made of conventional materials on the market.

[0022] The intumescent fire retardant coating is located on the inner and outer wall surfaces of the L-shaped sealing baffle parallel to the chain belt or chain teeth.

[0023] The two L-shaped sealing baffles cooperate with each other, and the sealing connector cooperates with the side end surface of the other L-shaped sealing baffle to form a cavity for the inner side of the zipper head to move.

[0024] The zipper closing and closing process of this utility model is as follows: in the initial state, the chain elements on the two chain belts are separated, and the zipper head is located on the side of the chain belt with the sealing plug-in. When the zipper needs to be closed, the bottom of the chain element on the other chain belt is inserted into the zipper strip and matched with the chain element connector at the bottom of the chain belt. Then, the nylon zipper is straightened and the zipper head is pulled upward to connect the two chain elements. During this process, the end face of the L-shaped sealing baffle located on the inner side of one chain belt will be inserted into the corresponding sealing plug-in during the closing process. The two are attracted and attached to each other under the cooperation of the magnet column and the magnet sheet, forming a multiple seal.

[0025] When exposed to fire, the intumescent fire retardant coating will expand due to the heat, filling the C-shaped inner cavity of the sealing connector and improving the sealing performance.

[0026] Preferably, a guide strip can be provided on the outer wall surface of the L-shaped sealing baffle (the wall surface that matches the zipper head), and two matching sliding grooves can be provided on the inner wall surface of the zipper head, so that the zipper head can move and drive the two L-shaped sealing baffles to move toward the middle, thereby making the two L-shaped sealing baffles engage and adsorb.

Claims

1. A flame retardant nylon zipper, characterized in that: The invention comprises two symmetrically distributed chain belts (1), each of which is provided with chain teeth (2) on its linking side, and also comprises a zipper head (3) for closing and pulling the chain teeth (2), and is characterized in that: both inner and outer sides of the chain belt (1) are provided with a flame retardant and wear-resistant layer (4) located on the side of the chain teeth (2); the inner side of each chain belt (1) is also provided with an L-shaped sealing baffle (5) made of a flame retardant material matching with the zipper head (3), wherein the end face of one of the L-shaped sealing baffles (5) is provided with a sealing connector (6) with a C-shaped cross section, and the sealing connector (6) matches with the end face of the other L-shaped sealing baffle (5).

2. The flame retardant nylon zipper according to claim 1, characterized in that: A plurality of magnet columns (7) are embedded in the inner bottom surface of the sealing plug-in component (6), and a plurality of magnet sheets (8) matching with the magnet columns (7) are embedded in the end surface of another L-shaped sealing baffle (5).

3. The flame retardant nylon zipper according to claim 2, characterized in that: The inner and outer wall surfaces of the other L-shaped sealing baffle (5) are also provided with an intumescent fire retardant coating (9).

4. The flame retardant nylon zipper according to claim 1, characterized in that: The surface of the chain teeth (2) is provided with a fire-retardant coating and a wear-resistant coating in sequence from the inside to the outside.

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