Windproof zipper

Abstract

The utility model discloses a windproof zipper, belongs to the technical field of zippers, and solves the problem that air inside and outside clothes circulates in gaps on the zipper. Comprising a first puller, a second puller and two zipper belts, the zipper belts are bent to be in a C shape, the two sides of the first puller are connected with one sides of the two zipper belts respectively, and the two sides of the second puller are connected with the other sides of the two zipper belts respectively. According to the windproof zipper, the cavity is formed between the two zipper belts, the air flowing speed near the splicing line corresponding to the second zipper head is slowed down, meanwhile, due to the fact that the splicing line corresponding to the first zipper head and the splicing line corresponding to the second zipper head are arranged in a staggered mode, the difficulty that airflow penetrates through the two splicing lines is increased, and the windproof effect of the zipper is further improved; the zipper belt is woven into the plain weave through the chinlon yarn, so that the woven structure of the zipper belt is compact, the breathability of the zipper is reduced in cooperation with the double-layer structure formed after the zipper belt is folded, the chinlon yarn has high abrasion resistance and toughness, and the service life of the zipper belt is prolonged.

Description

Technical Field

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

[0002] Zippers are a common structure on clothing, generally used to connect two pieces of fabric together to seal them. In existing zippers, due to limitations in manufacturing precision, there are still some gaps after the zipper teeth interlock. In some clothing that needs to be kept warm, this gap can cause air to circulate between the inside and outside of the clothing, leading to a drop in temperature on the inside of the clothing.

[0003] Therefore, a windproof 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 windproof zipper.

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

[0006] A windproof zipper includes a first zipper head, a second zipper head, and two chain straps. The chain straps are bent into a C-shape. The two sides of the first zipper head are connected to one side of each of the two chain straps, and the two sides of the second zipper head are connected to the other side of each of the two chain straps. The first zipper head and the second zipper head are staggered.

[0007] Preferably, the chain includes an outer portion connected to a first zipper pull, an inner portion connected to a second zipper pull, and a connecting portion connecting the outer portion and the inner portion, wherein the connecting portion is folded and sewn together.

[0008] Preferably, a barrier piece is fixedly connected to the outer side of one chain near the inner side, and the end of the barrier piece is attached to the inner side of another chain.

[0009] Preferably, the number of the barrier sheets is at least three, and the barrier sheets are arranged in a linear array along the width direction of the outer portion.

[0010] Preferably, the barrier sheet is made of cotton yarn woven into a double rib structure.

[0011] Preferably, the chain is woven from nylon yarn in a plain weave.

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

[0013] In this invention, a cavity is formed between the two chain straps, which slows down the airflow speed near the splice seam corresponding to the second zipper. At the same time, because the splice seams corresponding to the first and second zipper are misaligned, it increases the difficulty for airflow to pass through the two splice seams, thereby improving the windproof effect of the zipper. The chain straps are woven into a plain weave using nylon yarn, making the weave structure of the chain straps relatively dense. Combined with the double-layer structure after the chain straps are folded, this reduces the air permeability of the zipper. Attached Figure Description

[0014] Figure 1 This is a partial cross-sectional view of the present invention;

[0015] Figure 2 This is a diagram showing the microstructure of the barrier sheet in this utility model;

[0016] Figure 3 This is a diagram showing the organizational structure of the chain belt in this utility model.

[0017] 1. First zipper pull; 2. Second zipper pull; 3. Outer side; 4. Inner side; 5. Connecting part; 6. Barrier plate. Detailed Implementation

[0018] 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.

[0019] A type of windproof zipper, such as Figure 1 , Figure 3 As shown, it includes a first zipper head 1, a second zipper head 2, and two chain belts. The chain belts are bent into a C-shape. The two sides of the first zipper head 1 are connected to one side of the two chain belts, and the two sides of the second zipper head 2 are connected to the other side of the two chain belts. The first zipper head 1 and the second zipper head 2 are staggered. The chain belts include an outer part 3 connected to the first zipper head 1, an inner part 4 connected to the second zipper head 2, and a connecting part 5 connecting the outer part 3 and the inner part 4. The connecting part 5 is folded and sewn. The chain belts are woven from nylon yarn into a plain weave. Nylon yarn has high abrasion resistance and toughness, which improves the service life of the chain belts.

[0020] Specifically, both the ends of the outer side portion 3 and the inner side portion 4 are fixedly connected with chain teeth. The two outer side portions 3 are connected by the first zipper pull 1, and the two inner side portions 4 are connected by the second zipper pull 2. That is, the first zipper pull 1 is located outside the second zipper pull 2. On any chain, the width of the outer side portion 3 is different from the width of the inner side portion 4. Therefore, the first zipper pull 1 and the second zipper pull 2 ​​are staggered in the width direction of the outer side portion 3. The folded and sewn connecting part 5 is relatively flat and thick. Therefore, the connecting part 5 is used to connect with the fabric on both sides of the zipper. When it is necessary to zip up... When zipping, first pull up the first zipper pull 1, then pull up the second zipper pull 2. At this time, a cavity is formed between the two zipper pulls, which slows down the airflow speed near the seam corresponding to the second zipper pull 2. At the same time, because the seam corresponding to the first zipper pull 1 and the seam corresponding to the second zipper pull 2 ​​are misaligned, it increases the difficulty for airflow to pass through the two seams, thereby improving the windproof effect of the zipper. The zipper pulls are woven into a plain weave with nylon yarn, making the woven structure of the zipper pulls relatively dense. Combined with the double-layer structure after the zipper pulls are folded, the breathability of the zipper is reduced.

[0021] like Figure 1 , Figure 2 As shown, a barrier plate 6 is fixedly connected to the side of the outer part 3 of a chain belt near the inner part 4. The end of the barrier plate 6 is attached to the inner part 4 of another chain belt. There are at least three barrier plates 6. The barrier plates 6 are arranged in a linear array along the width direction of the outer part 3. The barrier plates 6 are woven from cotton yarn into a double rib structure.

[0022] Specifically, in this embodiment, there are three barrier sheets 6. The barrier sheets 6 are woven from cotton yarn using a circular knitting machine. With a dense double rib structure, they have good warmth retention. The barrier sheets 6 are sewn to the outer part 3 and are located between the first zipper pull 1 and the second zipper pull 2, further hindering the airflow between the first zipper pull 1 and the second zipper pull 2. When the second zipper pull 2 ​​is pulled, the two outer parts 3 are opened to the sides to prevent the barrier sheets 6 from being pinched by the second zipper pull 2.

[0023] 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 windproof zipper, characterized in that, It includes a first zipper (1), a second zipper (2) and two chains. The chains are bent into a C-shape. The two sides of the first zipper (1) are connected to one side of the two chains respectively. The two sides of the second zipper (2) are connected to the other side of the two chains respectively. The chains include an outer part (3) connected to the first zipper (1), an inner part (4) connected to the second zipper (2), and a connecting part (5) connecting the outer part (3) and the inner part (4). The connecting part (5) is folded and sewn. The first zipper (1) and the second zipper (2) are offset in the width direction of the outer part (3).

2. The windproof zipper according to claim 1, characterized in that, A barrier plate (6) is fixedly connected to the side of the outer part (3) of one chain belt near the inner part (4), and the end of the barrier plate (6) is attached to the inner part (4) of another chain belt.

3. A windproof zipper according to claim 2, characterized in that, The number of the barrier sheets (6) is at least three, and the barrier sheets (6) are arranged in a linear array along the width direction of the outer portion (3).

4. A windproof zipper according to claim 3, characterized in that, The barrier sheet (6) is made of cotton yarn woven into a double rib structure.

5. A windproof zipper according to claim 1, characterized in that, The chain is woven from nylon yarn in a plain weave.

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