A sealed zipper

Abstract

The utility model discloses a sealed zipper, including first belt body, second belt body and puller, be provided with first sealing strip on the first belt body, be provided with second sealing strip on the second belt body, the front surface of first sealing strip is seted up with first recess, the side of first sealing strip's front surface away from first belt body is provided with first convex strip, the back of second sealing strip is seted up with second recess, the side of second sealing strip's back away from second belt body is provided with second convex strip, when first sealing strip and second sealing strip mutual sealing occlusion, the first convex strip of first sealing strip is closely embedded in the second recess of adjacent second sealing strip, and the second convex strip of second sealing strip is closely embedded in the first recess of adjacent first sealing strip, the utility model discloses through first sealing strip and second sealing strip mutual occlusion realizes waterproof seal, and compared with traditional waterproof zipper, the better life is longer.

Description

Technical Field

[0001] This utility model relates to zipper technology, and in particular to a sealing zipper. Background Technology

[0002] Most waterproof zippers on the market use plastic teeth in conjunction with waterproof strips. The main closing element is the plastic teeth, which not only act as meshing elements but also provide a certain degree of waterproofing. When the zipper is closed, there are still some gaps between the plastic teeth. At this point, the waterproof strips on the zipper need to press against each other to further improve the waterproofing effect. With long-term use, if the waterproof strips age, fall off, or become damaged, the waterproofing effect will be greatly reduced. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to provide a sealing zipper with good waterproof effect after long-term use.

[0004] To achieve the above objectives, the solution of this utility model is: A sealing zipper includes a first belt body, a second belt body, and a zipper pull. The first belt body has two sets of first sealing strips arranged parallel vertically. The second belt body has two sets of second sealing strips arranged parallel vertically. A first groove is formed on the front side of each first sealing strip, and a first protrusion is formed on the side of the front side of the first sealing strip away from the first belt body. A second groove is formed on the back side of each second sealing strip, and a second protrusion is formed on the side of the back side of the second sealing strip away from the second belt body. The zipper pull slides on the first and second belt bodies, causing the first and second sealing strips to seal and engage with each other. When the first and second sealing strips are sealed and engaged, the first protrusion of the first sealing strip is tightly embedded in the second groove of the adjacent second sealing strip, and the second protrusion of the second sealing strip is tightly embedded in the first groove of the adjacent first sealing strip.

[0005] Furthermore, the first sealing strip has a first sidewall on the side near the first belt body, and the second sealing strip has a second sidewall on the back side near the second belt body.

[0006] Furthermore, when the first sealing strip and the second sealing strip are mutually sealed and engaged, the first sidewall of the first sealing strip is closely adjacent to the sidewall of the adjacent second sealing strip, and the second sidewall of the second sealing strip is closely adjacent to the sidewall of the adjacent first sealing strip.

[0007] Furthermore, the first protrusion is interference-fitted with the second groove, and the second protrusion is interference-fitted with the first groove.

[0008] Furthermore, both the first groove and the second groove are square grooves.

[0009] Furthermore, both the first and second protrusions are elongated square protrusions.

[0010] Furthermore, both the first and second protrusions are elongated semi-cylindrical protrusions.

[0011] Furthermore, the zipper pull has a support core, the end of which is positioned further inward than the edge of the zipper pull.

[0012] Furthermore, it also includes a U-shaped sealing stop, which is embedded in the pull head and abuts against the support core when the pull head pulls the first chain and the second chain together.

[0013] With the above structure, the zipper proposed by this utility model has the following technical effects: This utility model achieves waterproof sealing by interlocking the first sealing strip and the second sealing strip, which has better sealing performance and longer service life compared with the traditional waterproof zipper that uses chain teeth in conjunction with waterproof strips. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a sealing zipper according to the present invention; Figure 2 This is a partial cross-sectional structural diagram of the first and second belts of a sealing zipper according to the present invention when they are separated from each other; Figure 3 This is a partial cross-sectional structural diagram of the first and second belts of a sealing zipper of the present invention when they are connected to each other; Figure 4 This is a side view of the zipper pull of a sealing zipper according to the present invention.

[0015] In the figure: 1. First belt body, 2. Second belt body, 3. Pull head, 4. U-shaped top stop, 5. First sealing strip, 6. Second sealing strip, 7. Pull nose, 8. First groove, 9. First convex strip, 10. Second groove, 11. Second convex strip, 12. First side wall, 13. Support core, 14. Second side wall. Detailed Implementation

[0016] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0017] like Figure 1 , Figure 2 and Figure 3The sealing zipper shown includes a first belt body 1, a second belt body 2, a zipper pull 3, a U-shaped upper stop 4, and a lower stop. The first belt body 1 has two sets of first sealing strips 5, which are arranged parallel vertically. Both the first belt body 1 and the first sealing strips 5 are made of rubber. Specifically, the first belt body 1 and the first sealing strips 5 can be fixed together by heat bonding, or they can be directly integrally molded. The second belt body 2 has two sets of second sealing strips 6, which are arranged parallel vertically. The second belt body 2 and the second sealing strips 6... The seals 6 are also made of rubber. The second belt body 2 and the second sealing strip 6 can be fixed together by heat bonding. Alternatively, the second belt body 2 and the second sealing strip 6 can be directly integrally formed. The U-shaped upper stop 4 and lower stop are respectively set at both ends of the length direction of the first belt body 1 and the second belt body 2. The pull head 3 is slidably set on the first belt body 1 and the second belt body 2 so that the first sealing strip 5 and the second sealing strip 6 can engage or separate, thereby closing or opening the sealing zipper. The pull head 3 has a pull nose 7. When in use, the side with the pull nose 7 is the front, and the side without the pull nose is the back.

[0018] The first sealing strip 5 has a first groove 8 along its length on its front side and a first protrusion 9 on the side of its front side away from the first belt body 1. The second sealing strip 6 has a second groove 10 on its back side and a second protrusion 11 on the side of its back side away from the second belt body 2. The pull head 3 is slidably disposed on the first belt body 1 and the second belt body 2 so that the first sealing strip 5 and the second sealing strip 6 seal and engage with each other. When the first sealing strip 5 and the second sealing strip 6 seal and engage with each other, the first protrusion 9 of the first sealing strip 5 is tightly embedded in the second groove 10 of the adjacent second sealing strip 6, and the second protrusion 11 of the second sealing strip 6 is tightly embedded in the first groove 8 of the adjacent first sealing strip 5.

[0019] Preferably, the first sealing strip 5 has a first sidewall 12 on the side near the first strip body 1, and the second sealing strip 6 has a second sidewall 14 on the back side near the second strip body 2. When the first sealing strip 5 and the second sealing strip 6 are sealed together, the first sidewall 12 of the first sealing strip 5 is close to the opposite side of the adjacent second sealing strip 6, and the second sidewall 14 of the second sealing strip 6 is close to the opposite side of the adjacent first sealing strip 5. This design aims to reduce the gap that exists when the first sealing strip 5 and the second sealing strip 6 are sealed together, thereby improving the waterproof effect.

[0020] Furthermore, the first protrusion 9 is interference-fitted with the second groove 10, and the second protrusion 11 is interference-fitted with the first groove 8.

[0021] As several preferred options, the first groove 8 and the second groove 10 can both be square grooves, and the first convex strip 9 and the second convex strip 11 can both be long strip-shaped square convex strips. Alternatively, the first convex strip 9 and the second convex strip 11 can both be long strip-shaped semi-cylindrical convex strips. The former option is used in this embodiment.

[0022] Furthermore, such as Figure 4 As shown, the zipper 3 has a support core 13. The end of the support core 13 is set further inward than the edge of the zipper 3. When the zipper 3 pulls the first belt body 1 and the second belt body 2 together, the U-shaped sealing stop is embedded in the zipper 3 and abuts against the support core 15, further enhancing the waterproof effect of this utility model.

[0023] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing these embodiments and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0024] The above embodiments and accompanying drawings are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A sealing zipper, characterized in that: The device includes a first belt body, a second belt body, and a pull head. The first belt body has two sets of first sealing strips arranged parallel to each other vertically. The second belt body has two sets of second sealing strips arranged parallel to each other vertically. The first sealing strip has a first groove on its front side and a first protrusion on its front side away from the first belt body. The second sealing strip has a second groove on its back side and a second protrusion on its back side away from the second belt body. The pull head slides on the first and second belt bodies to seal and engage the first and second sealing strips. When the first and second sealing strips are sealed and engaged, the first protrusion of the first sealing strip is tightly embedded in the second groove of the adjacent second sealing strip, and the second protrusion of the second sealing strip is tightly embedded in the first groove of the adjacent first sealing strip.

2. A sealing zipper as described in claim 1, characterized in that: The first sealing strip has a first sidewall on the side near the first belt body, and the second sealing strip has a second sidewall on the side near the second belt body.

3. A sealing zipper as described in claim 2, characterized in that: When the first sealing strip and the second sealing strip are sealed and engaged with each other, the first sidewall of the first sealing strip is closely adjacent to the sidewall of the adjacent second sealing strip, and the second sidewall of the second sealing strip is closely adjacent to the sidewall of the adjacent first sealing strip.

4. A sealing zipper as described in claim 1, characterized in that: The first protrusion is interference-fitted with the second groove, and the second protrusion is interference-fitted with the first groove.

5. A sealing zipper as described in claim 4, characterized in that: Both the first groove and the second groove are square grooves.

6. A sealing zipper as described in claim 5, characterized in that: Both the first and second protrusions are elongated square protrusions.

7. A sealing zipper as described in claim 5, characterized in that: Both the first and second protrusions are elongated semi-cylindrical protrusions.

8. A sealing zipper as described in claim 1, characterized in that: The zipper pull has a support core, and the end of the support core is located further inward than the edge of the zipper pull.

9. A sealing zipper as described in claim 8, characterized in that: It also includes a U-shaped sealing stop, which is embedded in the pull head and abuts against the support core when the pull head pulls the first and second chain belts.

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