Waterproof zipper
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DUOLING THREAD BELT TECH CO LTD
- Filing Date
- 2025-10-20
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]但,上述的专利中,防水块下端为自由端,在频繁使用或洗涤过程中容易翻折、卷曲或磨损,影响防水效果和美观
本实用新型结构简单,使用方便,通过设置柔性连接带,将独立的防水块连接成一个整体,有效限制了防水块的过度位移和翻折,保持了整齐的叠压状态,提升了稳定性和耐用性,同时不影响拉链的整体柔软度。
Smart Images

Figure CN224597668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zipper technology, specifically to a waterproof zipper. Background Technology
[0002] Waterproof zippers are a type of nylon zipper, specifically nylon zippers that have undergone certain special treatments.
[0003] In the prior art, a novel waterproof zipper with publication number "CN 212994908 U" includes a left zipper fabric, a right zipper fabric, and a zipper. The left and right zipper fabrics each have teeth on opposite sides, which interlock. The zipper is fitted onto one of the teeth. The surfaces of the left and right zipper fabrics are provided with a plurality of waterproof blocks arranged in staggered layers from top to bottom. The upper end of each waterproof block is fixed to either the left or right zipper fabric, while the lower end is a free end. This design improves the flexibility of the waterproof zipper, allowing clothing to conform well to the body after installation.
[0004] However, in the aforementioned patents, the lower end of the waterproof block is a free end, which is prone to folding, curling, or wear during frequent use or washing, affecting the waterproof effect and aesthetics. Utility Model Content
[0005] To address the shortcomings of the existing technology, this utility model proposes a waterproof zipper.
[0006] To achieve the above-mentioned technical effects, the present invention adopts the following solution: A waterproof zipper includes a left zipper fabric, a right zipper fabric, a zipper lock, and teeth. The left and right zipper fabrics are respectively provided with teeth on opposite sides, and the teeth are staggered and interlocked. The zipper lock is sleeved on the teeth. The surfaces of the left and right zipper fabrics are provided with a plurality of waterproof blocks in staggered layers from top to bottom. The upper end of each waterproof block is fixedly connected to the left or right zipper fabric, and the lower end is a free end. The waterproof blocks are connected to each other by a flexible connecting strip.
[0007] In a preferred embodiment, the flexible connecting strip is made of elastic rubber or silicone material, its width is smaller than the width of the waterproof block, and it is longitudinally arranged along the side of the waterproof block.
[0008] In a preferred embodiment, the upper end of the waterproof block is embedded in the inner interlayer of the left or right tufted fabric and fixed by a stitching line that penetrates the interlayer.
[0009] In a preferred embodiment, the lower end of the waterproof block is provided with a flexible weighting strip, which is a metal wire or a high-density polymer wrapped inside the waterproof block.
[0010] In a preferred embodiment, the waterproof block is composed of three layers of composite material, including a base fabric layer, an intermediate waterproof membrane layer, and an outer wear-resistant layer, wherein the wear-resistant layer is a polyurethane coating.
[0011] Compared with existing technologies, the beneficial effects are: This utility model has a simple structure and is easy to use. By setting a flexible connecting strip, the independent waterproof blocks are connected into a whole, which effectively limits the excessive displacement and folding of the waterproof blocks, maintains a neat stacked state, improves stability and durability, and does not affect the overall softness of the zipper. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Attached diagram labels: 1. Left zipper; 2. Right zipper; 3. Teeth; 4. Zipper; 5. Waterproof block. Detailed Implementation
[0014] 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.
[0015] A waterproof zipper includes a left zipper 1, a right zipper 2, a zipper 4, and teeth 3. Teeth 3 are provided on opposite sides of the left zipper 1 and the right zipper 2, and the teeth 3 are staggered and interlocked. The zipper 4 is sleeved on the teeth 3. A plurality of waterproof blocks 5 are provided on the surface of the left zipper 1 and the right zipper 2 in staggered layers from top to bottom. The upper end of the waterproof block 5 is fixedly connected to the left zipper 1 or the right zipper 2, and the lower end is a free end. The waterproof blocks 5 are connected to each other by a flexible connecting strip.
[0016] By setting flexible connecting strips, the independent waterproof blocks 5 are connected into a whole, which effectively limits the excessive displacement and folding of the waterproof blocks 5, maintains a neat stacked state, improves stability and durability, and does not affect the overall softness of the zipper.
[0017] In a preferred embodiment, the flexible connecting strip is made of elastic rubber or silicone material, its width is smaller than the width of the waterproof block 5, and it is longitudinally arranged along the side of the waterproof block 5.
[0018] In a preferred embodiment, the upper end of the waterproof block 5 is embedded in the inner layer of the left or right fabric 1 and fixed by a stitch that penetrates the layer. This embedded fixing method enhances the connection strength between the waterproof block 5 and the fabric, making it more secure and reliable than simple surface sewing or Velcro.
[0019] In a preferred embodiment, the lower end of the waterproof block 5 is provided with a flexible weight strip, which is a metal wire or high-density polymer wrapped inside the waterproof block 5. The design of the flexible weight strip utilizes gravity to allow the free end of the waterproof block 5 to hang down naturally and fit snugly against the fabric or the waterproof block 5 below, further preventing folding and warping.
[0020] In a preferred embodiment, the waterproof block 5 is composed of three layers of composite material, including a base fabric layer, an intermediate waterproof membrane layer, and an outer wear-resistant layer, wherein the wear-resistant layer is a polyurethane coating.
[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", 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 utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to 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.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
Claims
1. A waterproof zipper, characterized in that, It includes a left pull fabric (1), a right pull fabric (2), a zipper (4), and teeth (3). The left pull fabric (1) and the right pull fabric (2) are respectively provided with teeth (3) on opposite sides. The teeth (3) are staggered and meshed. The zipper (4) is sleeved on the teeth (3). The surfaces of the left pull fabric (1) and the right pull fabric (2) are provided with several waterproof blocks (5) in staggered layers from top to bottom. The upper end of the waterproof block (5) is fixedly connected to the left pull fabric (1) or the right pull fabric (2), and the lower end is a free end. The waterproof blocks (5) are connected to each other by a flexible connecting strip.
2. The waterproof zipper as described in claim 1, characterized in that, The flexible connecting strip is made of elastic rubber or silicone material, and its width is smaller than that of the waterproof block (5), and it is set longitudinally along the side of the waterproof block (5).
3. The waterproof zipper as described in claim 1, characterized in that, The upper end of the waterproof block (5) is embedded in the inner interlayer of the left rag (1) or the right rag (2) and fixed by a stitch that runs through the interlayer.
4. The waterproof zipper as described in claim 1, characterized in that, The lower end of the waterproof block (5) is provided with a flexible weight strip, which is a metal wire or high-density polymer wrapped inside the waterproof block (5).
5. The waterproof zipper as described in claim 1, characterized in that, The waterproof block (5) is composed of three layers of composite material, including a base fabric layer, an intermediate waterproof membrane layer and an outer wear-resistant layer, wherein the wear-resistant layer is a polyurethane coating.
Citation Information
Patent Citations
Novel waterproof zipper
CN212994908U