CN210203597U - Air-tight waterproof zipper - Google Patents
Air-tight waterproof zipper Download PDFInfo
- Publication number
- CN210203597U CN210203597U CN201921133921.XU CN201921133921U CN210203597U CN 210203597 U CN210203597 U CN 210203597U CN 201921133921 U CN201921133921 U CN 201921133921U CN 210203597 U CN210203597 U CN 210203597U
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- Prior art keywords
- chain
- lip
- amalgamation
- length direction
- belt
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Abstract
The utility model discloses a waterproof zip fastener of gas tightness, including a pair of chain belt of amalgamation side by side, the chain belt is provided with the chain lip of arranging along its length direction continuity at the upper surface of amalgamation end, the chain belt is provided with the chain tooth of arranging along its length direction clearance at the lower back of amalgamation end, the separation has the free gap about chain tooth and the chain lip, the circular arc surface that the chain lip is pasting the chain tooth extends and is formed with downward bending portion behind its central line, works as two inwards encircleing when the chain tooth meshing and amalgamation of chain lip of chain belt forms airtight connection. The utility model discloses the gas tightness is through the identical formation of two chain lips after the meshing of two chain teeth, owing to the chain lip arranges and has formed the portion of buckling downwards along chain tooth surface circular arc when the design, and the direction that both encircleed mutually is inboard to the amalgamation seam, so two chain lip osculation face scope is wider, no matter how the waterproof zipper twists, circular-arc chain lip has arc surface or last arc surface to carry out airtight connection down all the time, so forms firm gas tightness.
Description
Technical Field
The utility model relates to a zip fastener technical field, the more specifically waterproof zip fastener of gas tightness that says so.
Background
The applicant applies for an airtight waterproof zipper two years ago, and the patent number is CN201720106804.9, and the airtight waterproof zipper comprises a pull head and a chain belt, wherein the chain belt is provided with a double-layer belt body formed by compounding a nylon base belt and a waterproof adhesive tape, the nylon base belt is respectively provided with intermittent zipper teeth arranged along the respective extending direction on two splicing edges of a splicing line, the waterproof adhesive tape is respectively provided with continuous joint heads arranged along the respective extending direction on the two splicing edges of the splicing line, and free gaps are separated between the whole row of zipper teeth and the whole joint head on the same side of the splicing line; the puller is provided with an upper wing and a lower wing which are connected through a guide pillar, the middle part of the guide pillar is sleeved with a wire dividing fin which is horizontally arranged and embedded into the free seam, the wire dividing fin travels along the free seam to the sequential extending seam, the meshing process of two rows of chain teeth is not influenced by two connecting heads, after the two rows of chain teeth are meshed, the two connecting heads are connected by pressure, the middle part of the two connecting heads is outwards arched to form compact connection, and a good waterproof effect is achieved.
In the practical process of recent two years, we gradually find that the airtight waterproof zipper has the defects in use, namely when the waterproof zipper tends to twist in the length direction, particularly bends from inside to outside, and because the two joints are arched outwards and are connected in an airtight manner, when the bending is continuously increased, the two joints turn towards the two sides, so that a seam gradually appears between the two joints, and the airtightness of the waterproof zipper is damaged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above defect of prior art, provide a waterproof zip fastener of gas tightness that can distort at will still can keep its gas tightness and water proofness.
In order to achieve the above purpose, the utility model discloses a realize through following technical scheme: the utility model provides a waterproof zip fastener of gas tightness, includes a pair of chain belt of following their length direction amalgamation side by side, the chain belt is provided with the chain lip of following its length direction continuity and arranging at the upper surface of amalgamation end, the chain belt is provided with the chain tooth of following its length direction clearance arrangement at the lower back of amalgamation end, its characterized in that, the chain lip is formed with downward bending portion after the circular arc surface that pastes the chain tooth extends and crosses its central line, when two inwards hunch into when the chain lip of chain belt meshing and amalgamation and form airtight connection.
Preferably, the arc top of the chain lip is provided with a reinforcing rib continuously arranged along the length direction of the chain lip.
Preferably, the fastener element and the fastener lip are vertically separated by a free slit.
Has the advantages that: the utility model discloses the gas tightness is through the identical formation of two chain lips after the meshing of two chain teeth, because the chain lip is arranged along chain tooth surface circular arc when the design, more importantly has formed the portion of bending down, the orientation that both encircleed mutually is inboard to the amalgamation seam, so two chain lip inosculation face scope is wider, no matter how the waterproof zipper twists, circular-arc chain lip has arc surface or last arc surface to carry out airtight connection down all the time, so form firm gas tightness. The reinforcing ribs are arranged on the arc tops of the chain lips, the fitting firmness of the outward bending parts is supplemented, after the reinforcing ribs are bent, the strength of the reinforcing ribs is greater than that of the inward extending bending parts, the reinforcing ribs have the force of pushing the bending parts inwards, and the strength of the chain lips is given and the air tightness is effectively kept.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-chain belt, 2-chain teeth, 3-chain lip, 4-free seam, 5-reinforcing rib and c-central line.
Detailed Description
In order to make the technical means, the creation features and the achievement objects of the present invention easy to understand, the present invention will be further explained with reference to the specific embodiments.
Example (b): as shown in fig. 1, an airtight waterproof slide fastener includes a pair of fastener tapes 1 spliced side by side along their length direction and made of thermoplastic polyurethane elastomer rubber, the fastener tape 1 is provided with a chain lip 3 continuously arranged along its length direction on the upper surface of the spliced end, the fastener tape 1 is provided with a fastener element 2 intermittently arranged along its length direction on the lower back surface of the spliced end, the fastener element 2 and the fastener lip 3 are separated from each other vertically by a free gap 4, the fastener lip 3 extends along the arc surface of the fastener element 2 and passes through the central line c thereof to form a downward curved portion, and when the fastener lips 3 of the two fastener tapes 1 are engaged and spliced together, the fastener lips are inwardly arched to form an airtight connection.
The arc top of the chain lip 3 is provided with a reinforcing rib 5 continuously arranged along the length direction thereof.
Use of: the utility model discloses the gas tightness is through the identical formation of two chain lips after the meshing of two chain teeth, because the chain lip is arranged along chain tooth surface circular arc when the design, more importantly has formed the portion of bending down, the orientation that both encircleed mutually is inboard to the amalgamation seam, so two chain lip inosculation face scope is wider, no matter how the waterproof zipper twists, circular-arc chain lip has arc surface or last arc surface to carry out airtight connection down all the time, so form firm gas tightness. The reinforcing ribs are arranged on the arc tops of the chain lips, the fitting firmness of the outward bending parts is supplemented, after the reinforcing ribs are bent, the strength of the reinforcing ribs is greater than that of the inward extending bending parts, the reinforcing ribs have the force of pushing the bending parts inwards, and the strength of the chain lips is given and the air tightness is effectively kept.
Claims (3)
1. The utility model provides a waterproof zip fastener of gas tightness, includes a pair of chain belt of following their length direction amalgamation side by side, the chain belt is provided with the chain lip of following its length direction continuity and arranging at the upper surface of amalgamation end, the chain belt is provided with the chain tooth of following its length direction clearance arrangement at the lower back of amalgamation end, its characterized in that, the chain lip is formed with downward bending portion after the circular arc surface that pastes the chain tooth extends and crosses its central line, when two inwards hunch into when the chain lip of chain belt meshing and amalgamation and form airtight connection.
2. The airtight and waterproof slide fastener according to claim 1, wherein the arc top of said chain lip is provided with a reinforcing rib continuously arranged along the length direction thereof.
3. The airtight and waterproof slide fastener according to claim 1 or 2, wherein the fastener elements are separated from the fastener lips up and down by free slits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921133921.XU CN210203597U (en) | 2019-07-19 | 2019-07-19 | Air-tight waterproof zipper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921133921.XU CN210203597U (en) | 2019-07-19 | 2019-07-19 | Air-tight waterproof zipper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210203597U true CN210203597U (en) | 2020-03-31 |
Family
ID=69916654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921133921.XU Active CN210203597U (en) | 2019-07-19 | 2019-07-19 | Air-tight waterproof zipper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210203597U (en) |
-
2019
- 2019-07-19 CN CN201921133921.XU patent/CN210203597U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |