Water vapor sealing zipper

By using TPU sealing sheets and zipper pull design, the problem of decreased sealing performance of zippers after repeated use is solved, achieving a better moisture sealing effect.

CN223640271UActive Publication Date: 2025-12-09JIAXING OUZHONGPU ZIPPER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520334609.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-12-09
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

After repeated use, existing zippers suffer from wear and tear on the chain teeth, resulting in decreased sealing performance and an inability to effectively prevent moisture from entering.

Method used

The sealing sheet and zipper head are made of TPU material. The sealing sheet is designed to gradually decrease in thickness and cooperate with the zipper teeth, while the zipper head is inserted into the slot to enhance the sealing effect.

Benefits of technology

It improves the sealing performance of the zipper, prevents moisture from entering the clothing, and ensures that the sealing strip has sufficient rigidity and pressure when closed, and is firmly locked into the groove to prevent slippage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a water vapor sealing zipper which comprises zipper base cloth. The number of the zipper base cloth is two, zipper teeth are arranged on the inner sides of the two zipper base cloth, and zipper pullers are connected to the zipper teeth. One ends of the two pieces of zipper base cloth are provided with upper stoppers, and the other ends of the two pieces of zipper base cloth are provided with lower stoppers; a sealing piece is further arranged on the inner side of the zipper base cloth. The inner sides of the sealing pieces are located above the zipper teeth, and after the zipper teeth are closed, the sealing pieces on the two sides of the open groove are closed. The thickness of the sealing piece is gradually reduced in the direction towards the outer side, and the thickness of the sealing piece is the largest when the sealing piece is located on the innermost side. According to the zipper, the sealing pieces made of the TPU materials are adopted, the sealing pieces can extrude each other when closed, the sealing effect is enhanced, and water vapor is prevented from entering clothes from zipper gaps; the thickness of the sealing piece is designed to be gradually reduced from the inner side to the outer side, enough rigidity and pressure are guaranteed during closing, and the sealing performance is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of zippers, specifically a moisture-sealing zipper. Background Technology

[0002] Zippers are connectors that use continuously arranged teeth to join or separate items. They are now widely used in clothing, bags, tents, and other products.

[0003] For example, patent CN221129031U discloses a seamless waterproof zipper, which aims to solve the technical problem that gaps still exist at the meshing of the teeth of current zippers, resulting in insufficient waterproofing ability of waterproof zippers. It includes a first connecting strip and a second connecting strip. Multiple interlocking chain teeth are equidistantly and symmetrically installed on adjacent sides of the first connecting strip and the second connecting strip. Each chain tooth includes a tooth block. A connecting groove is opened on one side of the tooth block, and a protrusion is installed on the other side of the tooth block. The protrusions on the sides of two adjacent tooth blocks are embedded in the connecting groove.

[0004] When the zipper head connects the first connecting strip and the second connecting strip, the protrusions on the side of the tooth block and the convex strips on the outer edge of the protrusions are respectively embedded into the connecting groove and the groove jointly opened by the tooth block and the connecting groove to form a sealing structure, which isolates the connection seam between multiple chain teeth and solves the problem that there are still gaps at the meshing of the zipper teeth; however, the disadvantage of the above patent is that the hard structure of the chain teeth will inevitably wear down after repeated use (when the chain teeth rub against each other when closing and opening), which will lead to a decrease in the sealing performance of the zipper.

[0005] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide a moisture-sealing zipper to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A moisture-sealing zipper includes a zipper base fabric; two zipper base fabrics are provided, and the inner sides of both zipper base fabrics are provided with zipper teeth, and zipper heads are connected to the zipper teeth; one end of the two zipper base fabrics is provided with a top stop, and the other end of the two zipper base fabrics is provided with a bottom stop; a sealing sheet is also provided on the inner side of the zipper base fabric; the inner side of the sealing sheet is located above the zipper teeth, and when the zipper teeth are closed, the sealing sheet on both sides of the slot is closed; the thickness of the sealing sheet gradually decreases along the outward direction, and the thickness of the sealing sheet is the greatest at the innermost side; the zipper head includes a main head, which includes an upper base, a lower base, and a connecting post connecting the upper base and the lower base; the top stop includes a first connecting part and a zipper head receiving part, the first connecting part connecting between the tops of the two zipper base fabrics, thereby sealing the tops of the two zipper base fabrics.

[0009] Furthermore, the chain tooth comprises a number of short chain teeth and long chain teeth spaced apart from each other, that is, there is a short chain tooth between two adjacent long chain teeth.

[0010] Furthermore, the sealing sheet is made of TPU material.

[0011] Furthermore, both the upper stop and the lower stop are made of TPU material.

[0012] Furthermore, the zipper head receiving portion is located at the bottom of the first connecting portion, and an inverted V-shaped slot is provided in the zipper head receiving portion, wherein the lower end of the slot gradually approaches but does not close.

[0013] Furthermore, the lower stop includes a second connecting portion and a fusion portion. The second connecting portion is connected between the bottoms of the two zipper base fabrics, thereby sealing the tops of the two zipper base fabrics. The fusion portion is located on top of the second connecting portion and is connected to the bottom of the sealing sheet and the lower end of the zipper teeth.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The sealing sheet is made of TPU material. When closed, the sealing sheets can squeeze against each other to enhance the sealing effect and prevent moisture from entering the clothing through the zipper gap.

[0016] The thickness of the sealing strip is designed to gradually decrease from the inside to the outside to ensure sufficient rigidity and pressure when closed, further improving sealing performance;

[0017] The zipper pull, combined with the TPU material top stop, ensures that the zipper pull can be securely locked into the slot when closed, preventing the zipper pull from sliding freely. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a water vapor sealing zipper.

[0019] Figure 2 This is a front view of a moisture-sealing zipper.

[0020] Figure 3 This is a side view of a moisture-sealing zipper.

[0021] Figure 4 This is a rear view of a moisture-sealing zipper.

[0022] Figure 5 for Figure 2 Sectional view along the AA direction.

[0023] Figure 6 This is a schematic diagram of the structure of a moisture-sealing zipper after the zipper head has been removed.

[0024] Figure 7 for Figure 6 A magnified view of a portion of point a.

[0025] Figure 8 for Figure 6 A magnified view of a section at point b.

[0026] Figure 9 This is a schematic diagram of the zipper head in a water vapor-sealing zipper.

[0027] Figure 10 for Figure 6 Full sectional view.

[0028] Figure 11 This is a schematic diagram of the chain teeth in a water vapor-sealing zipper.

[0029] Figure 12 for Figure 11 A magnified view of a section at point c. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] Please see Figure 1-12A moisture-sealing zipper includes a zipper base fabric 1; the zipper base fabric 1 has two zipper base fabrics, and each of the two zipper base fabrics 1 has zipper teeth 3 on its inner side, with zipper heads 5 connected to the zipper teeth 3; one end of each of the two zipper base fabrics 1 has a top stop 2, and the other end of each of the two zipper base fabrics 1 has a bottom stop 4.

[0032] In this scheme, the chain tooth 3 is composed of a number of short chain teeth 301 and long chain teeth 302 arranged at intervals, that is, there is a short chain tooth 301 between two adjacent long chain teeth 301.

[0033] When the two chain teeth 3 are closed, the long chain tooth 302 of one chain tooth 3 is inserted between the two long chain teeth 302 of the chain tooth 3 of the other chain tooth 3, and the end of the long chain tooth 302 of one chain tooth 3 abuts against the short chain tooth 301 of the other chain tooth 3; this arrangement makes the gap between the two chain teeth 3 as small as possible when the two chain teeth 3 are closed.

[0034] In this design, a sealing sheet 6 is also provided on the inner side of the zipper base fabric 1; the inner side of the sealing sheet 6 is located above the zipper teeth 3, and after the zipper teeth 3 are closed, the sealing sheets 6 on both sides of the slot 2 are closed.

[0035] In this solution, the sealing sheet 6 is made of TPU material, and the TPU material of the sealing sheet 6 can keep the sealing sheet 6 in a state of mutual compression when closed, thereby preventing moisture from entering the clothing through the gaps between the sealing sheets 6.

[0036] The thickness of the sealing sheet 6 gradually decreases along the outward direction, and the thickness of the sealing sheet 6 is the greatest when it is at the innermost side. This arrangement ensures that the sealing sheet maintains a certain rigidity when compressed, thereby ensuring that the pressure between the two sealing sheets 6 is large enough when they are closed, thus preventing moisture from entering the clothing through the gap between the sealing sheets.

[0037] The zipper head 5 includes a main head 501, which includes an upper base 502, a lower base 503, and a connecting post 504 connecting the upper base 502 and the lower base 503.

[0038] Both the upper stop 2 and the lower stop 4 are made of TPU material;

[0039] Meanwhile, in this solution, the upper stop 2 includes a first connecting part 201 and a zipper head receiving part 202. The first connecting part 201 is connected between the tops of the two zipper base fabrics 1, thereby sealing the tops of the two zipper base fabrics 1.

[0040] The zipper head receiving part 202 is located at the bottom of the first connecting part 201. The zipper head receiving part 202 has an inverted V-shaped groove 203. The lower end of the groove 203 gradually approaches but does not close. When the connecting post 504 of the zipper head passes the lower end of the groove 203, the connecting post 504 will press the zipper head receiving part 202 outward. At this time, due to the elasticity of the TPU material of the zipper head receiving part 202, the lower end of the zipper head receiving part 202 will open. After the connecting post 504 enters the groove 203, the lower end of the groove 203 closes, thereby preventing the zipper head 5 from descending in the free state.

[0041] Meanwhile, in this solution, the lower stop 4 includes a second connecting part 401 and a fusion part 402. The second connecting part 401 is connected between the bottoms of the two zipper base fabrics 1, thereby sealing the tops of the two zipper base fabrics 1.

[0042] The fusion part 402 is located on top of the second connecting part 401, and the fusion part 402 is connected to the bottom of the sealing sheet 6 and the lower end of the chain tooth 3.

[0043] When using this invention, the entire zipper is sewn into the pocket of the garment. When in use, the zipper head 5 is pulled up, at which point the zipper head 5 closes the zipper teeth 3. At this time, the sealing pieces 6 on both sides of the slot 2 close, thereby sealing the pocket.

[0044] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A moisture-sealing zipper, comprising a zipper base fabric; wherein the zipper base fabric has two layers, and each layer has teeth on its inner side, with a zipper head connected to the teeth; characterized in that, One end of each of the two zipper base fabrics has a top stop, and the other end of each zipper base fabric has a bottom stop. A sealing sheet is also provided on the inner side of each zipper base fabric. The inner side of the sealing sheet is located above the zipper teeth; after the zipper teeth are closed, the sealing sheets on both sides of the slot are closed. The thickness of the sealing sheet gradually decreases along the outward direction, reaching its maximum thickness at the innermost side. The zipper head includes a main head, which includes an upper base, a lower base, and a connecting post connecting the upper and lower bases. The top stop includes a first connecting portion and a zipper head receiving portion. The first connecting portion connects between the tops of the two zipper base fabrics, thereby sealing the tops of the two zipper base fabrics.

2. The moisture-sealing zipper according to claim 1, characterized in that, The chain teeth consist of several short chain teeth and long chain teeth arranged at intervals, that is, there is a short chain tooth between two adjacent long chain teeth.

3. A moisture-sealing zipper according to claim 1, characterized in that, The sealing sheet is made of TPU material.

4. A moisture-sealing zipper according to claim 1, characterized in that, Both the upper stop and the lower stop are made of TPU material.

5. A moisture-sealing zipper according to claim 4, characterized in that, The zipper head receiving part is located at the bottom of the first connecting part, and an inverted V-shaped slot is provided in the zipper head receiving part, wherein the lower end of the slot gradually approaches but does not close.

6. A moisture-sealing zipper according to claim 4 or 5, characterized in that, The lower stop includes a second connecting part and a fusion part. The second connecting part is connected between the bottoms of the two zipper base fabrics, thereby sealing the tops of the two zipper base fabrics. The fusion part is located on top of the second connecting part and is connected to the bottom of the sealing sheet and the lower end of the zipper teeth.

Citation Information

Patent Citations

  • Seamless waterproof zipper

    CN221129031U