CN218588380U

CN218588380U - Tectorial membrane gas tightness zip fastener

Info

Publication number: CN218588380U
Application number: CN202221159129.3U
Authority: CN
Inventors: 王志刚; 林兴福
Original assignee: Dongguan Yixiang Zipper Industry Co ltd
Current assignee: Dongguan Yixiang Zipper Industry Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2023-03-10
Anticipated expiration: 2032-05-13

Abstract

The utility model discloses a tectorial membrane gas tightness zip fastener, its technical scheme main points are including the strap, the chain tooth, the pull head, upper end and lower extreme end, the strap is including first sealed cloth and the sealed cloth of second, first sealed cloth and the sealed cloth of second are located the both sides of chain tooth respectively, and be formed with the sliding seam clearance between first sealed cloth and the sealed cloth of second, one side that lies in first sealed cloth in the sliding seam clearance is provided with first airtight layer, one side that lies in the sealed cloth of second in the sliding seam clearance is provided with the airtight layer of second, this gas tightness zip fastener can begin convenient realization high seal, the effect of convenient pulling.

Description

Tectorial membrane gas tightness zip fastener

Technical Field

The utility model relates to a zip fastener, more specifically say, it relates to a tectorial membrane gas tightness zip fastener.

Background

The zipper is a common article in daily life of people, can be applied to backpacks, traveling cases, special clothes and the like, and the traditional zipper is made of metal or plastic materials, has no waterproof performance, and causes inconvenience in use in products requiring waterproof performance. For example, in an outdoor waterproof case, if the waterproof performance of the zipper is not good enough, rainwater easily enters the case through the joint of the zipper, causing inconvenience in use. To overcome this problem, waterproof zippers have appeared on the market.

However, the existing waterproof zipper is provided with a waterproof rubber layer on one side of the cloth belt, the waterproof rubber layer is cut to form a zipper port, the rubber layer is attached to the zipper port through a hot sealing technology, a comprehensive waterproof layer is finally formed, and the phenomenon that the zipper is difficult to open in the pulling process is caused by overlarge friction force between the two rubber layers, so that the zipper is difficult to open in the using process, and even the condition that the zipper cannot be opened is caused.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a tectorial membrane gas tightness zip fastener, this gas tightness zip fastener can begin the effect of convenient realization high seal, convenient pulling.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a tectorial membrane gas tightness zip fastener, is including strap, chain tooth, pull head, upper end and lower extreme end, the strap is including first sealed cloth and second sealed cloth, first sealed cloth and second sealed cloth are located the both sides of chain tooth respectively to be formed with the sliding seam clearance between first sealed cloth and the second sealed cloth, be provided with the filling layer in the sliding seam clearance, one side that lies in first sealed cloth in the sliding seam clearance is provided with first airtight layer, one side that lies in the second sealed cloth in the sliding seam clearance is provided with the second airtight layer, first airtight layer and second airtight are used for wrapping up the filling layer respectively.

To sum up, the utility model discloses following beneficial effect has: the existing rubber is changed into the airtight layer with the design, a gap exists between the original first sealing cloth and the original second sealing cloth (the gap is not equal to the sliding seam gap, but the space position of the first sealing cloth is still located in the sliding seam gap, the sliding seam gap is formed later according to the process flow, so that the gap is only referred to as the space position), the filling layer (TPU hot melt adhesive) is injected into the gap and then cut to form the sliding seam gap, the first airtight layer and the second airtight layer can wrap the filling layer in the sliding seam gap by attaching the third airtight layer and the fourth airtight layer to the first sealing cloth and the second sealing cloth and attaching the first airtight layer and the second airtight layer to the sliding seam gap, and the first airtight layer and the second airtight layer can fill the gap formed by cutting, so that the smoothness of the pulling process and the waterproofness of the first airtight layer and the second airtight layer can be guaranteed.

Drawings

FIG. 1 is a schematic view showing the structure of a film-covered airtight zipper;

FIG. 2 is a schematic view showing the construction of a first embodiment of the film-covered airtight slide fastener;

FIG. 3 is a schematic view showing the structure of a second embodiment of the film-covered airtight slide fastener.

Reference numerals: 1. a cloth belt; 11. a first seal cloth; 12. a second sealing cloth; 13. a third air barrier; 14. a fourth hermetic layer; 15. a third seal lip; 16. a fourth sealing lip; 2. a fastener element; 3. a sliding seam gap; 31. a first hermetic layer; 32. a second air barrier; 33. a first seal lip; 34. a second sealing lip; 4. and (5) filling the layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 3, in order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a tectorial membrane gas tightness zip fastener, including strap 1, chain tooth 2, the pull head, upper end and lower extreme end, strap 1 is including first sealed cloth 11 and second sealed cloth 12, first sealed cloth 11 and second sealed cloth 12 are located the both sides of chain tooth 2 respectively, and be formed with smooth seam clearance 3 between first sealed cloth 11 and the second sealed cloth 12, be provided with the filling layer in the smooth seam clearance, the one side that lies in first sealed cloth 11 in smooth seam clearance 3 is provided with first airtight layer 31, the one side that lies in second sealed cloth 12 in the smooth seam clearance 3 is provided with second airtight layer 32, first airtight layer and second are airtight to be used for wrapping up the filling layer respectively.

The first seal cloth 11 is provided with a third airtight layer 13, and the second seal cloth 12 is provided with a fourth airtight layer 14.

The first airtight layer 31, the second airtight layer 32, the third airtight layer 13 and the fourth airtight layer 14 are all plastic layers.

The plastic layer is made of a polymeric material, preferably a memory plastic, or a thermoplastic elastomer such as polychloroprene, polyurethane elastomers and polyester elastomers.

The utility model discloses a design, the air-tight layer of this design is changed into current rubber, there is the clearance (this clearance is not equal to the sliding joint clearance) between first sealed cloth 11 and second sealed cloth 12 originally, but spatial position says that the filling layer still is located the sliding joint clearance, form after the sliding joint clearance is with process flow, thereby only refer to spatial position here) pour into filling layer (TPU hot melt adhesive) and then cut open and form sliding joint clearance 3, through pasting third air-tight layer 13 and fourth air-tight layer 14 on first sealed cloth 11 and second sealed cloth 12, and paste first air-tight layer 31 and second air-tight layer 32 in sliding joint clearance 3, this first air-tight layer 31 and second air-tight layer 32 can wrap up filling layer 4 in sliding joint clearance 3, because plastics material self has very high waterproof nature, and can fill the gap that the cutting formed, not only can guarantee the smoothness nature of dragging the process originally, and can guarantee the waterproof nature of self.

A third seal lip 15 is provided on the third airtight layer 13, and a fourth seal lip 16 is provided on the fourth airtight layer 14.

The third seal lip 15 is disposed to be curved upward, and the fourth seal lip 16 is disposed to be curved downward.

In the first embodiment, as shown in fig. 2, the third seal lip 15 and the fourth seal lip 16 are designed such that when the fastener element 2 is closed, the third seal lip 15 and the fourth seal lip 16 are in contact with each other, and because the orientations of the third seal lip and the fourth seal lip are different, the contact area is increased during the contact, and a larger and more sealing surface can be provided.

The first airtight layer 31 is provided with a first seal lip 33, and the second airtight layer 32 is provided with a second seal lip 34.

The first seal lip 33 is disposed to be curved upward, and the second seal lip 34 is disposed to be curved downward.

The second embodiment, as shown in fig. 3, can be applied to a larger-format slide fastener (the slide gap 3 of the larger-format slide fastener is larger than the slide gap 3 of the smaller-format slide fastener, so as to more conveniently cast the sealing lip) than the first embodiment, when the fastener elements 2 are closed, the first sealing lip 33 and the second sealing lip 34 are in contact with each other, and because the orientations of the two are different, the contact area is increased in the contact process, and a larger and more sealing surface can be provided.

Further, the first sealing lip 33, the second sealing lip 34, the third sealing lip 15 and the fourth sealing lip 16 can be designed simultaneously in the same zipper product.

Above only the utility model discloses a preferred embodiment, the utility model discloses a scope not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a tectorial membrane gas tightness zip fastener, is including strap (1), chain tooth (2), pull head, upper end and lower extreme end, characterized by: the cotton tape (1) comprises a first sealing cloth (11) and a second sealing cloth (12), the first sealing cloth (11) and the second sealing cloth (12) are located on two sides of the zipper teeth (2) respectively, a sliding seam gap (3) is formed between the first sealing cloth (11) and the second sealing cloth (12), a filling layer (4) is arranged in the sliding seam gap (3), a first airtight layer (31) is arranged on one side, located on the first sealing cloth (11), in the sliding seam gap (3), a second airtight layer (32) is arranged on one side, located on the second sealing cloth (12), in the sliding seam gap (3), the first airtight layer (31) and the second airtight layer (32) are used for wrapping the filling layer (4) respectively.

2. The film-covered airtight zipper according to claim 1, wherein: the first sealing cloth (11) is provided with a third airtight layer (13), and the second sealing cloth (12) is provided with a fourth airtight layer (14).

3. The film-covered airtight zipper according to claim 2, wherein: the first airtight layer (31), the second airtight layer (32), the third airtight layer (13) and the fourth airtight layer (14) are all plastic layers.

4. The film-covered airtight slide fastener according to claim 1, wherein: a first sealing lip (33) is arranged on the first airtight layer (31), and a second sealing lip (34) is arranged on the second airtight layer (32).

5. The film-covered airtight slide fastener according to claim 4, wherein: the first sealing lip (33) is arranged in a bent upward manner, and the second sealing lip (34) is arranged in a bent downward manner.

6. The film-covered airtight slide fastener according to claim 2, wherein: and a third sealing lip (15) is arranged on the third airtight layer (13), and a fourth sealing lip (16) is arranged on the fourth airtight layer (14).

7. The film-covered airtight zipper according to claim 6, wherein: the third sealing lip (15) is arranged upwards in a bending mode, and the fourth sealing lip (16) is arranged downwards in a bending mode.

8. The film-covered airtight zipper according to claim 1, wherein: the filling layer (4) is TPU hot melt adhesive.