Flame-retardant zipper

Abstract

The utility model discloses a flame-retardant zipper, belongs to the technical field of zippers, and solves the problem that zipper teeth and a puller in the zipper are exposed outside and are easy to deform in a high-temperature environment. Comprising a first connecting piece and a second connecting piece, a chain belt is fixedly connected to the first connecting piece, a loop ring is fixedly connected to the second connecting piece, the chain belt penetrates through the position between the loop ring and the second connecting piece, the chain belt is curled to be in a C shape, a pull head is arranged between the two tail ends of the chain belt, the pull head is located between the first connecting piece and the second connecting piece, and the chain belt is made of flame-retardant materials. The zipper teeth and the puller are all wrapped inside by the zipper belt, the puller and the zipper teeth are prevented from making direct contact with open fire, the heat exchange rate between the puller and the zipper teeth and the outside is reduced, the puller and the zipper teeth are prevented from being damaged, the service life of the zipper is guaranteed, the zipper belt forms a plain weave, and the strength of the zipper belt is improved.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, and in particular to a flame-retardant zipper. Background Technology

[0002] Zippers are a common type of connection on clothing. For clothing used in specific scenarios, there are different requirements for zippers. For special clothing that needs to be exposed to high temperatures, such as clothing used in kitchens or specific high-temperature workshops, there is usually a requirement for flame retardancy at the top of the garment. In existing zippers, the teeth and the pull tab are exposed, which makes them prone to deformation in high-temperature environments and reduces their lifespan.

[0003] Therefore, a flame-retardant zipper is proposed to solve or alleviate the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flame-retardant zipper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flame-retardant zipper includes a first connecting piece and a second connecting piece. A chain is fixedly connected to the first connecting piece, and a loop is fixedly connected to the second connecting piece. The chain passes between the loop and the second connecting piece. The chain is curled into a C-shape. A pull tab is provided between the two ends of the chain. The pull tab is located between the first connecting piece and the second connecting piece. The chain is made of flame-retardant material.

[0007] Preferably, both ends of the pull head are provided with pull ropes, and the length of the pull ropes is greater than the length of the chain belt.

[0008] Preferably, a rope reel for securing the pull rope is fixedly connected to the side of the second connecting piece near the chain belt.

[0009] Preferably, a guide buckle is fixedly connected to the top of the inner side of the chain, and the pull rope located at the top of the pull head passes through the guide buckle.

[0010] Preferably, the chain is woven from flame-retardant yarn in a plain weave.

[0011] Preferably, the flame-retardant yarn is made of twisted polyester modified fiber filaments.

[0012] This utility model has the following beneficial effects:

[0013] In this invention, the zipper belt completely covers the zipper teeth and the zipper pull on the inside, preventing the zipper pull and zipper teeth from directly contacting open flames and reducing the heat exchange rate between the two and the outside world. This prevents damage to the zipper pull and zipper teeth, ensuring the service life of the zipper. The zipper belt has a plain weave structure, which improves the strength of the zipper belt. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the structure of the pull rope and pull head of this utility model.

[0016] 1. First connecting piece; 2. Second connecting piece; 3. Chain belt; 4. Pull head; 5. Loop; 6. Pull rope; 7. Rope coil; 8. Guide buckle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] A flame-retardant zipper, such as Figure 1 , Figure 2 As shown, it includes a first connecting piece 1 and a second connecting piece 2. A chain 3 is fixedly connected to the first connecting piece 1, and a loop 5 is fixedly connected to the second connecting piece 2. The chain 3 passes between the loop 5 and the second connecting piece 2. The chain 3 is curled into a C-shape. A pull head 4 is provided between the two ends of the chain 3. The pull head 4 is located between the first connecting piece 1 and the second connecting piece 2. The chain 3 is made of flame-retardant material. The chain 3 is woven into a plain weave by flame-retardant yarn. The flame-retardant yarn is made of twisted polyester modified fiber filaments.

[0019] Specifically, both ends of the chain belt 3 are fixedly connected with chain teeth. The first connecting piece 1 and the second connecting piece 2 are used to connect with the fabric on both sides. The first connecting piece 1 and the chain belt 3 are sewn together, and the loop 5 and the second connecting piece 2 are sewn together. When the zipper needs to be pulled, the end of the chain belt 3 is passed through the loop 5, so that the chain teeth at both ends of the chain belt 3 come into contact. Pulling the zipper head 4 makes the chain teeth interlock. At this time, the chain belt 3 tightens the first connecting piece 1 and the second connecting piece 2, and the chain belt 3 completely covers the chain teeth and the zipper head 4 on the inside, preventing the zipper head 4 and the chain teeth from directly contacting open flames and reducing the heat exchange rate between the two and the outside world, thus preventing damage to the zipper head 4 and the chain teeth and ensuring the service life of the zipper. The chain belt 3 forms a plain weave structure, which improves the strength of the chain belt 3. The polyester modified fiber is polyester fiber modified by blending, that is, flame retardant is added to the spinning melt or slurry during spinning to form polyester modified fiber with flame retardant effect, which improves the flame retardant effect of the zipper.

[0020] like Figure 1 , Figure 2 As shown, both ends of the pull head 4 are provided with pull ropes 6. The length of the pull ropes 6 is greater than the length of the chain belt 3. The second connecting piece 2 is fixedly connected to the side of the chain belt 3 with a rope disc 7 for fixing the pull ropes 6. The top of the inner side of the chain belt 3 is fixedly connected with a guide buckle 8. The pull rope 6 located at the top of the pull head 4 passes through the guide buckle 8.

[0021] Specifically, the pull cord 6, the first connecting piece 1, and the second connecting piece 2 are all made of the same material as the chain belt 3, ensuring the overall flame-retardant effect of the zipper. The pull cord 6 is used to pull the zipper head 4, improving the convenience of using the zipper. The cord coil 7 is made of metal and is riveted to the second connecting piece 2. Cord coils 7 are provided at the top and bottom of the second connecting piece 2. The pull cord 6 is coiled onto the cord coil 7 to avoid the pull cord 6 affecting the user's movement. The guide buckle 8 is located on the inner wall of the chain belt 3 facing the first connecting piece 1. When pulling the zipper head 4 upward, one hand holds the guide buckle 8, using the guide buckle 8 as a fixed pulley, and pulls the pull cord 6 that passes through the guide buckle 8 outward to pull the zipper head 4. This increases the angle at which the pull cord 6 is pulled, further improving the convenience of using the zipper.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flame-retardant zipper, characterized in that, It includes a first connecting piece (1) and a second connecting piece (2). A chain (3) is fixedly connected to the first connecting piece (1), and a loop (5) is fixedly connected to the second connecting piece (2). The chain (3) passes between the loop (5) and the second connecting piece (2). The chain (3) is curled into a C-shape. A pull head (4) is provided between the two ends of the chain (3). The pull head (4) is located between the first connecting piece (1) and the second connecting piece (2). The chain (3) is made of flame-retardant material.

2. The flame-retardant zipper according to claim 1, characterized in that, Both ends of the pull head (4) are provided with pull ropes (6), and the length of the pull ropes (6) is greater than the length of the chain (3).

3. A flame-retardant zipper according to claim 2, characterized in that, The second connecting piece (2) is fixedly connected to a rope disc (7) for fixing the pull rope (6) on the side near the chain belt (3).

4. A flame-retardant zipper according to claim 3, characterized in that, The top of the inner side of the chain (3) is fixedly connected to a guide buckle (8), and the pull rope (6) located at the top of the pull head (4) passes through the guide buckle (8).

5. A flame-retardant zipper according to claim 1, characterized in that, The chain (3) is woven from flame-retardant yarn in a plain weave.

6. A flame-retardant zipper according to claim 5, characterized in that, The flame-retardant yarn is made by twisting modified polyester fibers.

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