Concealed zipper capable of being expanded

Abstract

The utility model discloses an expandable hidden zipper which comprises expandable base cloth (1), an invisible zipper body (2) used for controlling expansion of a box body is arranged on the inner side of the expandable base cloth (1), and an opening and closing zipper (3) is arranged at the side end of the expandable base cloth (1). The expansion base cloth (1) and the opening and closing zipper (3) are fixed to the two ends of the opening and closing position of the box body. The utility model has the characteristics that the misoperation can be effectively prevented, and the aesthetic property is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a luggage zipper, in particular to a hidden zipper with expandable capacity. BACKGROUND

[0002] On a hard luggage, in order to expand the hard luggage's load capacity, a zipper with expandable capacity is often set, and a pair of opening and closing zipper is equipped; however, the zipper with expandable capacity and the opening and closing zipper on the current hard luggage are arranged outward, that is, the zipper head with expandable capacity is exposed outside, which on one hand leads to misoperation when the luggage is opened, and on the other hand affects the appearance. SUMMARY

[0003] The utility model discloses a hidden zipper with expandable capacity.

[0004] The utility model discloses a hidden zipper with expandable capacity, which comprises an expandable base cloth, a hidden zipper for controlling the expansion of the box body is arranged on the inner side of the expandable base cloth, and an opening and closing zipper is arranged on the side end of the expandable base cloth.

[0005] In the aforementioned hidden zipper with expandable capacity, the expandable base cloth comprises a base cloth body, a polytetrafluoroethylene microporous membrane and a wear-resistant coating are arranged on the outer side of the base cloth body, and a bacteriostatic coating is arranged on the inner side of the base cloth body.

[0006] In the aforementioned hidden zipper with expandable capacity, the base cloth body comprises a puncture-resistant base cloth, and elastic cloth layers are arranged on the inner and outer sides of the puncture-resistant base cloth; the elastic cloth layers are woven with warp and weft, the weft is aramid fiber, and the warp is spandex fiber.

[0007] In the aforementioned hidden zipper with expandable capacity, the puncture-resistant base cloth is woven with ultra-high molecular weight polyethylene fiber.

[0008] Compared with the prior art, the utility model comprises an expandable base cloth, a hidden zipper arranged on the inner side of the expandable base cloth (for controlling the expansion) and an opening and closing zipper arranged on the side end of the expandable base cloth, which forms the opening and closing control and the expandable control of the hard luggage, and the hidden zipper is arranged on the inner side of the expandable base cloth, so that the expansion operation of the luggage can be performed only after the luggage is opened, which can prevent misoperation and effectively improve the overall appearance of the luggage.

[0009] In addition, the expansion base cloth of the application is composed of a base cloth body, a polytetrafluoroethylene microporous membrane arranged on the outer side of the base cloth body, a wear-resistant coating, and a bacteriostatic coating arranged on the inner side of the base cloth body, and has good waterproof, wear-resistant and bacteriostatic effects; at the same time, the base cloth body is composed of a puncture-resistant base cloth and an elastic cloth layer, so that the expansion base cloth has good elasticity and puncture-resistant effect, and the safety during use of the luggage is improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a structural schematic view of the utility model;

[0011] Figure 2 is a structural view of the expansion base cloth.

[0012] The marks in the drawings are: 1-expansion base cloth, 2-hidden zipper, 3-zipper, 101-base cloth body, 102-polytetrafluoroethylene microporous membrane, 103-wear-resistant coating, 104-bacteriostatic coating, 111-puncture-resistant base cloth, 102-elastic cloth layer. DETAILED DESCRIPTION

[0013] The utility model will be further described below in combination with the drawings and examples, but not as the basis for limiting the utility model.

[0014] Example. An expandable hidden zipper, which is composed of Figures 1-2 as shown in Figure 1 the hidden zipper is in an open state, and the zipper is in a closed state), including an expansion base cloth 1, the inner side of the expansion base cloth 1 is provided with a hidden zipper 2 for controlling the expansion of the box body, and the side end of the expansion base cloth 1 is provided with a zipper 3; the expansion base cloth 1 and the zipper 3 are fixed to the two ends of the opening and closing part of the box body.

[0015] The expansion base cloth 1 includes a base cloth body 101, the outer side of the base cloth body 101 is provided with a polytetrafluoroethylene microporous membrane 102 and a wear-resistant coating 103, and the inner side of the base cloth body 101 is provided with a bacteriostatic coating 104.

[0016] The base cloth body 101 includes a puncture-resistant base cloth 111, and the inner and outer sides of the puncture-resistant base cloth 111 are provided with elastic cloth layers 112; the elastic cloth layers 112 are woven with warp and weft, the weft is aramid fiber, and the warp is spandex fiber.

[0017] The puncture-resistant base cloth 111 is woven with warp and weft of ultra-high molecular weight polyethylene fiber.

[0018] The production process of the utility model is that the hidden zipper is installed on the inner side of the expansion base cloth for controlling the expansion state, and the zipper is installed on one side end of the expansion base cloth.

[0019] When installed on the bag, the other side end of the expansion base cloth is installed at one side of the opening of the bag, the other side end of the opening zipper is installed at the other side of the opening of the bag, and the invisible zipper is ensured to be located inside the bag.

[0020] In use, the opening zipper is first pulled open, and then it is determined whether the invisible zipper needs to be pulled open according to the expansion needs, when expansion is needed, the invisible zipper is pulled open, and when expansion is not needed, the invisible zipper is pulled up.

[0021] In the production of the expansion base cloth, the elastic base cloth layer is first hot-pressed on the outside of the anti-puncture base cloth by using glue to obtain the base cloth body, then the polytetrafluoroethylene microporous membrane is adhered to the outside of the base cloth body, the wear-resistant coating is coated on the outside of the polytetrafluoroethylene microporous membrane, and the bacteriostatic coating is applied to the inside of the base cloth body.

Claims

1. An expandable concealed zipper, characterized by: The utility model relates to a box with expandable bottom cloth, which comprises an expandable bottom cloth (1), a hidden zipper (2) for controlling the expansion of the box body is arranged on the inner side of the expandable bottom cloth (1), and an open-close zipper (3) is arranged on the side end of the expandable bottom cloth (1); the expandable bottom cloth (1) and the open-close zipper (3) are fixed to the two ends of the opening and closing part of the box body.

2. The expandable concealed zipper of claim 1, wherein: The expandable bottom cloth (1) comprises a bottom cloth body (101), a polytetrafluoroethylene microporous membrane (102) and a wear-resistant coating (103) are arranged on the outer side of the bottom cloth body (101), and a bacteriostatic coating (104) is arranged on the inner side of the bottom cloth body (101).

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