Nylon woven double-layer tooth airtight zipper

Abstract

The utility model relates to the technical field of zippers, and particularly discloses a nylon woven double-layer tooth airtight zipper which comprises front zipper teeth, a first elastic body and a second elastic body are arranged at the bottom end of the front zipper teeth, and back zipper teeth are jointly arranged at the bottom end of the first elastic body and the bottom end of the second elastic body. The outer surfaces of one ends of the front zipper teeth and the back zipper teeth are jointly provided with a tail sealing seat, the outer surfaces of the other ends of the front zipper teeth and the back zipper teeth are jointly provided with a head sealing seat, the inner side of the head sealing seat is provided with a sealing layer, and the bottom end and the top end of the head sealing seat are fixedly connected with limiting strips; through the arrangement of the head sealing seat, the sealing layer, the limiting strip, the first elastic body, the second elastic body and the sealing convex strip, the watertight effect can be achieved when the device is used, the device has excellent waterproof and airtight performance when being bent by less than 90 degrees, and the waterproof and airtight effects are good when the device is applied to extreme weather conditions or high-pressure environments. And the performance can meet a higher sealing standard.

Description

Technical Field

[0001] The utility model belongs to the technical field of zippers, and particularly relates to a nylon woven double-layer tooth airtight zipper. Background Art

[0002] A zipper is a connecting piece that relies on continuously arranged teeth to join or separate items. It is now widely used in clothing, bags, tents, etc. A woven airtight zipper belongs to a type of zipper and is a zipper with special waterproof and airtight properties, which is widely used in occasions that require high tightness.

[0003] A conventional woven airtight zipper has single-sided teeth. A layer of TPU elastic plastic is made on the side without teeth. By squeezing the single-sided TPU when the zipper is closed, the function of waterproof and airtight is achieved. However, the resistance during the zipping process of the zipper head is relatively large, resulting in the user needing to apply additional force during operation, and the use experience is relatively laborious. To alleviate this problem, users often need to regularly apply lubricating oil on the surface of the TPU film to reduce friction, but this undoubtedly increases the complexity and cost of maintenance.

[0004] Secondly, since the waterproof and airtight functions only rely on the single-sided TPU protective layer, when the zipper is used in scenarios that require 90-degree bending, such as the corners of tents or clothing with complex curve designs, the TPU film may not fit completely, and thus water leakage or air leakage may occur, seriously affecting the overall waterproof and airtight effects.

[0005] Furthermore, although the design of single-sided teeth can provide good bite force under normal conditions to ensure the stability of the zipper, in the face of higher requirement protection scenarios, such as applications in extreme weather conditions or high-pressure environments, its performance is insufficient and it is difficult to meet higher sealing standards. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a nylon woven double-layer tooth airtight zipper to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A nylon woven double-layer tooth airtight zipper, comprising:

[0009] Front zipper teeth;

[0010] A first elastomer and a second elastomer are arranged at the bottom end of the front zipper teeth, and back zipper teeth are jointly arranged at the bottom ends of the first elastomer and the second elastomer;

[0011] A tail sealing seat is jointly arranged on the outer surfaces of one ends of the front zipper teeth and the back zipper teeth, and a head sealing seat is jointly arranged on the outer surfaces of the other ends of the front zipper teeth and the back zipper teeth;

[0012] A sealing layer is provided on the inner side of the head sealing seat, and limiting strips are fixedly connected to both the bottom end and the top end of the head sealing seat.

[0013] Preferably, a pull head is jointly installed between the front zipper teeth and the back zipper teeth.

[0014] Preferably, a sealing rib is provided at one end of the first elastomer.

[0015] Preferably, both the front zipper teeth and the back zipper teeth are composed of a woven material and a spiral zipper, and the width of the woven material part of the front zipper teeth is wider than the width of the woven material part of the back zipper teeth.

[0016] Preferably, the sealing rib is attached to one end of the second elastomer.

[0017] Preferably, both of the limiting strips are arranged in an arc structure.

[0018] Preferably, the first elastomer, the second elastomer and the sealing rib are all made of one of TPU, silica gel and rubber materials.

[0019] Preferably, the radian at one end of the pull head is consistent with the radian on the inner side of the limiting strip.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] (1) By providing the front zipper teeth, the back zipper teeth, the first elastomer and the second elastomer, glue is roll-coated on the front and back cloth tapes of the front zipper teeth and the back zipper teeth, and the glue is dried in an oven. The high-temperature fluid of the elastic material is coated on the toothless side of the front zipper teeth through a mold. Before the elastic material fluid cools and solidifies, the toothless surface of the back zipper teeth is accurately attached to the central position of the front zipper teeth and cooled and solidified, thus forming a double-layer tooth woven zipper. The woven airtight zipper can be zipped without applying oil during use, which is labor-saving.

[0022] (2) By setting the head sealing seat, sealing layer, limiting strip, first elastic body, second elastic body and sealing rib, head sealing seats and tail sealing seats are respectively arranged at both ends of the front zipper teeth and the back zipper teeth, and a sealing layer is arranged in the head sealing seat to form the sealing at the head and tail of the device. When pulling the slider, the other half of the front zipper teeth and the back zipper teeth are zipped together with the front zipper teeth and the back zipper teeth with sealing ribs. The sealing ribs are fully squeezed by the restraint of the double-layer teeth and are protected in the middle. The slider is inserted into the head sealing seat and fits with the sealing layer and the limiting strip, so as to achieve a more reliable waterproof gas function. When in use, it can achieve the effect of no leakage, and has excellent waterproof and airtight performance when the device is bent less than 90 degrees, improving the sealing performance. Moreover, during the use process, it can meet the sealing standards under extreme weather or high-pressure environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is one of the three-dimensional views of the present utility model;

[0024] Figure 2 is Figure 1 the sectional view of;

[0025] Figure 3 is the second three-dimensional view of the present utility model;

[0026] Figure 4 is the right-side view sectional connection plan view of the connection of the front zipper teeth, back zipper teeth, first elastic body and second elastic body of the present utility model;

[0027] Figure 5 is the right-side view connection plan view of the connection of the front zipper teeth, back zipper teeth, first elastic body and second elastic body of the present utility model;

[0028] In the figure: 1. Front zipper teeth; 2. Tail sealing seat; 3. Head sealing seat; 4. Sealing layer; 5. Limiting strip; 6. Slider; 7. Back zipper teeth; 8. First elastic body; 9. Second elastic body; 10. Sealing rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment 1:

[0031] Please refer to Figure 1 - Figure 5As shown, a nylon - woven double - toothed airtight zipper includes:

[0032] Front zipper teeth 1;

[0033] At the bottom end of the front zipper teeth 1, a first elastomer 8 and a second elastomer 9 are provided. At the bottom ends of the first elastomer 8 and the second elastomer 9, back zipper teeth 7 are jointly provided.

[0034] On the outer surface of one end of the front zipper teeth 1 and the back zipper teeth 7, a tail sealing seat 2 is jointly provided. On the outer surface of the other end of the front zipper teeth 1 and the back zipper teeth 7, a head sealing seat 3 is jointly provided.

[0035] Inside the head sealing seat 3, a sealing layer 4 is provided. At the bottom end and the top end of the head sealing seat 3, limiting strips 5 are fixedly connected.

[0036] From Figure 1 and Figure 2 it can be seen that a slider 6 is jointly installed between the front zipper teeth 1 and the back zipper teeth 7;

[0037] Both the front zipper teeth 1 and the back zipper teeth 7 are composed of a combination of a woven material and a spiral zipper. The width of the woven - material part of the front zipper teeth 1 is wider than the width of the woven - material part of the back zipper teeth 7.

[0038] As can be seen from the above, glue is roll - coated on the front and back fabric tapes of the 4 - cm - wide front zipper teeth 1, and the glue is dried through an oven. Then, glue is roll - coated on the front and back fabric tapes of the 1.2 - cm - to - 1.5 - cm - wide back zipper teeth 7, and the glue is dried through an oven. The elastic material is melted into a high - temperature fluid like toothpaste concentration through an extrusion machine. The high - temperature fluid of the elastic material is coated on the toothless side of the 4 - cm - wide front zipper teeth 1 through a mold. Before the elastic - material fluid cools and solidifies, the toothless surface of the 1.2 - cm - to - 1.5 - cm - wide back zipper teeth 7 is accurately attached to the center position of the 4 - cm - wide woven front zipper teeth 1 and cooled and solidified, thus forming a double - toothed woven zipper. After the elastic material cools, the first elastomer 8 and the second elastomer 9 are formed. The slider 6 is installed between the front zipper teeth 1 and the back zipper teeth 7, and a head sealing seat 3 and a tail sealing seat 2 are respectively provided at both ends of the front zipper teeth 1 and the back zipper teeth 7, and a sealing layer 4 is provided inside the head sealing seat 3 to form the sealing at the head and tail of the device. When the slider 6 is pulled, after the slider 6 moves to the head sealing seat 3, it will penetrate into the head sealing seat 3 and fit with the sealing layer 4 and the limiting strips 5, achieving a leak - proof effect during use.

[0039] Preferably, both of the two limiting strips 5 are arranged in an arc - shaped structure;

[0040] The radian at one end of the slider 6 is consistent with the radian inside the limiting strip 5.

[0041] As can be seen from the above, the radian at one end of the slider 6 is set to be the same as the radian on the inner side of the limiting strip 5. When the slider 6 is pulled up, one end of the slider 6 closely adheres to the inner side of the limiting strip 5, and the limiting strip 5 is used for limiting.

[0042] Embodiment 2:

[0043] Refer to Figure 3 、 Figure 4 and Figure 5 As shown, a sealing rib 10 is provided at one end of the first elastomer 8;

[0044] The sealing rib 10 is attached to one end of the second elastomer 9.

[0045] As can be seen from the above, after the double-layer tooth woven zipper is made, the double-layer woven zipper is opened by a special tool, so that the front zipper teeth 1 and the back zipper teeth 7 are separated into two parts. Then, the elastic material is melted into a high-temperature fluid such as toothpaste concentration by an extrusion machine, and the high-temperature fluid of the elastic material is coated through a mold into the gap between the front zipper teeth 1 and the back zipper teeth 7 of the opened single-sided zipper teeth. After cooling and solidifying, a sealing rib 10 is formed. When in use, by using the slider 6, the other half of the front zipper teeth 1 and the back zipper teeth 7 are zipped together with the front zipper teeth 1 and the back zipper teeth 7 with the sealing rib 10. After re-zipping, the added sealing rib 10 is fully squeezed by the restraint of the double-layer teeth, closely adheres to one end of the second elastomer 9, and is protected in the middle, so as to achieve a more reliable waterproof gas effect.

[0046] Preferably, the first elastomer 8, the second elastomer 9 and the sealing rib 10 are all made of one of TPU, silica gel and rubber materials.

[0047] As can be seen from the above, the first elastomer 8, the second elastomer 9 and the sealing rib 10 are all made of one of TPU, silica gel and rubber materials, thereby improving the sealing effect of the device.

[0048] Working principle: Glue is roll-coated on the front and back fabric tapes of the front zipper teeth 1 and the back zipper teeth 7. The glue is dried through an oven. The high-temperature fluid of the elastic material is coated on the toothless side of the front zipper teeth 1 through a mold. Before the elastic material fluid cools and solidifies, the toothless side of the back zipper teeth 7 is accurately attached to the center position of the front zipper teeth 1 and cooled and solidified, thus forming a double-tooth woven zipper. After the elastic material cools, the first elastic body 8 and the second elastic body 9 are formed. After the double-tooth woven zipper is made, the double-layer woven zipper is opened by a special tool, so that the front zipper teeth 1 and the back zipper teeth 7 are separated into two parts. Then, the high-temperature fluid of the elastic material is coated through a mold in the gap between the opened single-sided zipper teeth, namely the front zipper teeth 1 and the back zipper teeth 7. After cooling and solidifying, a sealing rib 10 is formed. The slider 6 is installed between the front zipper teeth 1 and the back zipper teeth 7, and a head sealing seat 3 and a tail sealing seat 2 are respectively arranged at both ends of the front zipper teeth 1 and the back zipper teeth 7. A sealing layer 4 is arranged in the head sealing seat 3 to form the sealing at the head and tail of the device. By pulling the slider 6, the other half of the front zipper teeth 1 and the back zipper teeth 7 are zipped with the front zipper teeth 1 and the back zipper teeth 7 with the sealing rib 10. After re-zipping, the additional sealing rib 10 is fully squeezed by the restraint of the double teeth and protected in the middle. After the slider 6 moves to the head sealing seat 3, it will penetrate into the head sealing seat 3 and fit with the sealing layer 4 and the limiting strip 5, so as to achieve a more reliable waterproof and gas-proof effect, and a leak-proof effect can be achieved during use.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Nylon braided double-layer tooth airtight zipper, characterized in that: include: Front zipper teeth (1); The bottom end of the front zipper tooth (1) is provided with a first elastic body (8) and a second elastic body (9), and the bottom ends of the first elastic body (8) and the second elastic body (9) are jointly provided with a back zipper tooth (7); The outer surfaces of one end of the front zipper teeth (1) and the back zipper teeth (7) are jointly provided with a tail sealing seat (2), and the outer surfaces of the other end of the front zipper teeth (1) and the back zipper teeth (7) are jointly provided with a head sealing seat (3); A sealing layer (4) is provided on the inner side of the head sealing seat (3), and the bottom end and the top end of the head sealing seat (3) are both fixedly connected to a limiting strip (5).

2. The nylon braided double-layer tooth airtight zipper according to claim 1, characterized in that: A slider (6) is installed between the front zipper teeth (1) and the back zipper teeth (7).

3. The nylon braided double-layer tooth airtight zipper according to claim 1, characterized in that: A sealing convex strip (10) is provided at one end of the first elastic body (8).

4. The nylon braided double-layer tooth airtight zipper according to claim 1, characterized in that: The front zipper teeth (1) and the back zipper teeth (7) are both made of a combination of a woven material and a spiral zipper, and the width of the woven material portion of the front zipper teeth (1) is wider than the width of the woven material portion of the back zipper teeth (7).

5. The nylon braided double-layer tooth airtight zipper according to claim 3, characterized in that: The sealing convex strip (10) is fitted together with one end of the second elastic body (9).

6. The nylon braided double-layer tooth airtight zipper according to claim 1, characterized in that: The two limiting strips (5) are both configured as arc-shaped structures.

7. The nylon braided double-layer tooth airtight zipper according to claim 1, characterized in that: The first elastic body (8), the second elastic body (9) and the sealing convex strip (10) are all made of one of TPU, silicone and rubber materials.

8. The nylon braided double-layer tooth airtight zipper according to claim 2, characterized in that: The curvature of one end of the pull head (6) is consistent with the curvature of the inner side of the limiting strip (5).

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