Telescopic enclosing zipper and double-layer telescopic enclosing zipper

Abstract

The utility model provides a telescopic enclosing zipper and a double-layer telescopic enclosing zipper, and relates to the technical field of zippers, the telescopic enclosing zipper comprises a first zipper cloth, a second zipper cloth, a telescopic cloth and a supporting structure, the first zipper cloth is provided with first zipper teeth, the second zipper cloth is provided with second zipper teeth, and the telescopic cloth is arranged on the supporting structure. Two ends of the telescopic cloth are respectively connected with the first zipper cloth and the second zipper cloth; the supporting structure is arranged close to the first zipper teeth and arranged on the inner side of the telescopic cloth, the supporting structure comprises supporting cloth and a supporting piece, the supporting cloth and the telescopic cloth define a containing space, the supporting piece is arranged in the containing space, and the width of the supporting piece is not smaller than the width of the two zipper teeth when the two zipper teeth are closed; therefore, the zipper teeth and the telescopic cloth are supported, and the problems that an existing telescopic surrounding zipper is complex in process and prone to wrinkling are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, and in particular to a telescopic zipper and a double-layer telescopic zipper. Background Art

[0002] In the field of luggage, it is a common structure to expand the capacity of luggage by setting a telescopic waist and a telescopic waist zipper. For example, a double-layer telescopic waist zipper disclosed in Chinese patent CN217284960U is provided with a double row of zippers, and a cloth belt that can be used to expand the luggage space is provided between the zippers to form a telescopic waist structure, thereby achieving the expansion and contraction effect of the luggage space. Figure 1 and Figure 2 As shown in FIG. 1 , a wire bracket A1 is arranged outside the telescopic zipper, and the outer cover A2 of the wire bracket A1 is fixed together with the zipper cloth A3, the telescopic zipper A4, and the edge strip A5. This structure is widely used in luggage, but the process is relatively complicated, and the wire bracket A1 adds a lot of weight. For this reason, the following are available on the market: Figure 3 and Figure 4 The telescopic zipper shown in the figure directly sews the zipper cloth A3 and the telescopic zipper A4 together, which is simple in process and light in weight. However, since the telescopic zipper has no support, wrinkles are easily formed, resulting in an uneven appearance, and thus the beauty of the bag is greatly reduced. Utility Model Content

[0003] The utility model discloses a telescopic zipper with a simple structure, aiming to improve the problems of the existing telescopic zipper having complex process and easy wrinkling.

[0004] The utility model adopts the following scheme:

[0005] A telescopic zipper comprises a first zipper cloth, a second zipper cloth, a telescopic cloth and a supporting structure, wherein the first zipper cloth is provided with a first zipper tooth, the second zipper cloth is provided with a second zipper tooth, and both ends of the telescopic cloth are respectively connected to the first zipper cloth and the second zipper cloth; the supporting structure is arranged close to the first zipper tooth and is disposed on the inner side of the telescopic cloth, the supporting structure comprises a supporting cloth and a supporting member, the supporting cloth and the telescopic cloth are combined to form a accommodating space, the supporting member is arranged in the accommodating space, and its width is not less than the width of the two zipper teeth when they are closed, thereby supporting the zipper teeth and the telescopic cloth.

[0006] Preferably, the supporting cloth comprises a first fixing cloth and a second fixing cloth, and the two fixing cloths are connected by an inner zipper.

[0007] Preferably, one end of the first fixing cloth away from the inner zipper is aligned with the stretch cloth and is fixed to the stretch cloth and the first zipper cloth by sewing, and one end of the second fixing cloth away from the inner zipper is fixed to the stretch cloth by sewing.

[0008] Preferably, one end of the telescopic cloth is folded to form the first fixing cloth, and the folded portion is fixed to the first zipper cloth by sewing.

[0009] Preferably, the accommodating space is annular, the supporting member is provided with a supporting surface facing the telescopic cloth, and the supporting surface is arranged in a horizontal direction.

[0010] Preferably, the support member is hollow.

[0011] Preferably, the first zipper teeth and the second zipper teeth are inverted on the inner sides of the first zipper cloth and the second zipper cloth respectively.

[0012] Preferably, the support member is made of plastic, metal, wood, leather, carbon fiber or foam material.

[0013] A double-layer telescopic zipper is also provided, comprising two telescopic zippers as described in any one of the above items, wherein the ends of the two first zipper cloths away from the first zipper teeth are provided with main zipper teeth, and the two first zipper cloths are configured to be connected via the main zipper teeth.

[0014] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0015] 1. Compared with the existing telescopic zippers, the telescopic zipper of the present application has a simple structure, can simplify the process, improve production efficiency, and save processing costs. At the same time, the support structure is arranged on the inner side of the telescopic cloth, which can form an effective support on the inner side of the telescopic cloth, so that the appearance of the telescopic zipper is flat and wrinkle-free, which improves the overall aesthetics of the product and improves the problem that the box opening of the traditional zipper box is easy to sag. In addition, the width of the support member is not less than the width of the two zipper teeth when they are closed, which can ensure the reliability of the support structure and make the zipper cloth flatter.

[0016] 2. The support is hollow, which can reduce the volume and weight of the support and make it easier for users to carry. The material of the support is preferably plastic, metal, wood, leather, carbon fiber or foam material, which ensures the support strength while being lightweight.

[0017] 3. Double-layer telescopic zipper can make the luggage have a larger expansion space, which is convenient for storing more luggage and convenient for travel. Among them, double support reinforcement makes the appearance smoother and more beautiful, and the zipper strength is better, more solid and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 and Figure 3 It is a schematic diagram of the structure of an existing telescopic zipper in the background art when it is unfolded;

[0020] Figure 2 and Figure 4 It is a schematic diagram of the structure of the existing telescopic zipper in the background technology when it is closed;

[0021] Figure 5 This is a schematic diagram of the structure of one embodiment of the utility model when the telescopic cloth is unfolded;

[0022] Figure 6 and Figure 7 This is a schematic diagram of the structure of the telescopic cloth of one embodiment of the utility model when it is contracted at different viewing angles;

[0023] Figure 8 This is a structural schematic diagram of another embodiment of the utility model when the telescopic cloth is unfolded;

[0024] Fig. 9 and Fig.10 It is a schematic diagram of the structure of the telescopic cloth of another embodiment of the utility model when it is contracted at different viewing angles;

[0025] Fig.11 It is a structural schematic diagram of the expansion of the telescopic cloth when the first zipper teeth and the second zipper teeth of one embodiment of the utility model are inverted;

[0026] Fig.12 yes Fig.11 A schematic diagram of the structure of the telescopic cloth when it is contracted;

[0027] Fig.13 It is a structural schematic diagram of another embodiment of the utility model in which the telescopic cloth is unfolded when the first zipper teeth and the second zipper teeth are inverted;

[0028] Fig.14 yes Fig.13 A schematic diagram of the structure of the telescopic cloth when it is contracted;

[0029] Fig.15 The utility model is a schematic structural diagram of a double-layer telescopic zipper according to one embodiment of the utility model, wherein one telescopic cloth is expanded and the other telescopic cloth is contracted.

[0030] icon:

[0031] A1-wire bracket; A2-jacket; A3-zipper cloth; A4 telescopic skirt; A5-edge strip;

[0032] 1-first zipper fabric; 11-first zipper tooth;

[0033] 2-second zipper fabric; 12-second zipper tooth;

[0034] 3- stretch fabric;

[0035] 4-support structure; 41-support cloth; 411-first fixing cloth; 412-second fixing cloth; 413-inner zipper; 42-support member; 421-support surface;

[0036] 5-main zipper; 51-main zipper teeth. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0038] Example

[0039] Combination Figures 5 to 10 The present embodiment provides a telescopic zipper, comprising a first zipper fabric 1, a second zipper fabric 2, a telescopic fabric 3 and a supporting structure 4. The first zipper fabric 1 is provided with a first zipper tooth 11, the second zipper fabric 2 is provided with a second zipper tooth 12, and both ends of the telescopic fabric 3 are respectively connected to the first zipper fabric 1 and the second zipper fabric 2; the supporting structure 4 is arranged close to the first zipper tooth 11 and is disposed on the inner side of the telescopic fabric 3, the supporting structure 4 comprises a supporting fabric 41 and a supporting member 42, the supporting fabric 41 and the telescopic fabric 3 are enclosed to form an accommodating space, the supporting member 42 is arranged in the accommodating space, and its width is not less than the width of the two zipper teeth when they are closed, thereby supporting the zipper teeth and the telescopic fabric 3.

[0040] For example, the telescopic zipper is applied to luggage. The first zipper fabric 1 is provided with a first zipper tooth 11 at one end and a main zipper 5 at the other end. The user opens and closes the main zipper 5 to open and close the luggage. The first zipper tooth 11 and the second zipper tooth 12 are used to shrink and expand the telescopic fabric 3. When the first zipper tooth 11 and the second zipper tooth 12 are closed, the telescopic fabric 3 shrinks. The positions of the two zipper teeth are supported by the support member 42, which can avoid the zipper teeth from being sunken, ensure the flatness of the appearance of the telescopic zipper, and thus improve the aesthetics of the luggage product. When the first zipper tooth 11 and the second zipper tooth 12 are separated, the telescopic fabric 3 is expanded to expand the capacity of the luggage. The inner side of the unfolded telescopic fabric 3 is supported by the support member 42, thereby avoiding the collapse of the telescopic fabric 3 after being unfolded, and ensuring the aesthetics of the unfolded telescopic zipper.

[0041] It should be noted that, compared with the existing telescopic zipper, the present embodiment has a simple structure, can simplify the process, improve production efficiency, and save processing costs. At the same time, the support structure 4 is arranged on the inner side of the telescopic cloth 3, which can form an effective support on the inner side of the telescopic cloth 3, so that the telescopic zipper has a flat appearance and no wrinkles, improves the overall aesthetics of the product, and improves the problem that the box opening of the traditional zipper box is easy to sag. Among them, the width of the support member 42 is not less than the width of the two zipper teeth when they are closed, which can ensure the reliability of the support structure 4 and make the zipper cloth smoother.

[0042] In a preferred embodiment, the support cloth 41 includes a first fixing cloth 411 and a second fixing cloth 412, and the two fixing cloths are connected by an inner zipper 413, which facilitates the assembly and replacement of the support member 42. In other embodiments, the first fixing cloth 411 and the second fixing cloth 412 can also be fixed by stitching, or the support cloth 41 is set as an integral body, which is not limited to this and is not specifically limited.

[0043] Based on the above embodiment, the first zipper fabric 1 and the second zipper fabric 2 include the following two implementations:

[0044] Implementation method 1: Reference Figures 5 to 7 The end of the first fixing cloth 411 away from the inner zipper 413 is aligned with the stretch cloth 3 and fixed to the stretch cloth 3 and the first zipper cloth 1 by sewing, and the end of the second fixing cloth 412 away from the inner zipper 413 is fixed to the stretch cloth 3 by sewing. The first fixing cloth 411, the second fixing cloth 412 and the stretch cloth 3 enclose a receiving space, and the support member 42 is inserted by opening the inner zipper 413 to fill the receiving space, thereby forming a supporting effect.

[0045] Implementation Method 2: Reference Figures 8 to 10, one end of the telescopic cloth 3 is folded to form a first fixed cloth 411, and the folded portion is sewn and fixed to the first zipper cloth 1. In this embodiment, the implementation of the second fixed cloth 412 is the same as that of the first embodiment, and will not be repeated here. The first fixed cloth 411 is formed by folding one end of the telescopic cloth 3. It is easy to understand that the folded portion of the telescopic cloth 3 forms an extension section, and the extension section is provided with inner zipper teeth to be openably connected to the second fixed cloth 412. Compared with the first embodiment, in this embodiment, the process can be further simplified and the production efficiency can be improved.

[0046] On the basis of the above embodiments, in an optional embodiment of the utility model, the accommodating space is annular, and the support member 42 is provided with a support surface 421 facing the retractable cloth 3, and the support surface 421 is arranged in a horizontal direction to make the supported zipper teeth and the retractable cloth 3 flatter.

[0047] Preferably, the support member 42 is hollow, such as a hollow shell, or is arranged in a "concave" shape, so as to reduce the volume of the support member 42, reduce the weight, and facilitate the user to carry. Preferably, the material of the support member 42 is plastic, metal, wood, leather, carbon fiber or foam material, so as to achieve lightweight while ensuring the support strength. It should be mentioned that the two ends of the support member 42 are in contact with the inner side of the support cloth 41 and are kept in a tensioned state to prevent the support member 42 from sliding and ensure the support effect.

[0048] In any of the above embodiments, the first zipper teeth 11 and the second zipper teeth 12 can be arranged to be inverted on the inner sides of the first zipper cloth 1 and the second zipper cloth 2, respectively. For example, the reverse (inverted) method is adopted to make the zipper appearance smoother and achieve the best smooth state. Furthermore, a groove is provided on the support member 42 so that the zipper teeth can be accommodated in the groove, so as to support the zipper teeth while hiding the height of the zipper teeth, thereby ensuring that the zipper teeth remain flat on the outer side of the zipper cloth. In one embodiment, combined with Fig.11 and Fig.12 , one end of the stretch fabric 3 is folded to form a first fixing fabric 411, and the folded portion is sewn and fixed to the first zipper fabric 1. In another embodiment, Fig.13 and Fig.14 The first fixing cloth 411 is aligned with one end of the stretch cloth and fixed to the first zipper cloth 1 by sewing. In the above two embodiments, the second fixing cloth 412 can be configured to be sewn and fixed to the stretch cloth 3, but is not limited thereto and is not specifically limited thereto.

[0049] Combination Fig.15The utility model further provides a double-layer telescopic zipper, comprising two telescopic zippers as described in any of the above embodiments, wherein the end of the first zipper cloth 1 away from the first zipper tooth 11 is provided with a main zipper tooth 51, and the two first zipper cloths 1 are configured to be connected via the main zipper tooth 51. When in use, the user can choose to open one or two telescopic zippers for expansion according to needs, and the choice is flexible. At the same time, the double-layer telescopic zipper enables the bag to have a larger expansion space, which is convenient for storing more luggage and convenient for travel. Among them, the double support reinforcement makes the appearance smoother and more beautiful, and the zipper strength is better, and it is more durable.

[0050] The above are only preferred implementations of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

Claims

1. A telescopic zipper, characterized in that: The invention comprises a first zipper cloth, a second zipper cloth, a telescopic cloth and a supporting structure, wherein the first zipper cloth is provided with a first zipper tooth, the second zipper cloth is provided with a second zipper tooth, and two ends of the telescopic cloth are respectively connected to the first zipper cloth and the second zipper cloth; the supporting structure is arranged close to the first zipper tooth and is disposed on the inner side of the telescopic cloth, the supporting structure comprises a supporting cloth and a supporting member, the supporting cloth and the telescopic cloth are enclosed to form a accommodating space, the supporting member is arranged in the accommodating space, and its width is not less than the width when the two zipper teeth are closed, thereby supporting the zipper teeth and the telescopic cloth.

2. The telescopic zipper according to claim 1, characterized in that: The supporting cloth comprises a first fixing cloth and a second fixing cloth, and the two fixing cloths are connected by an inner zipper.

3. The telescopic zipper according to claim 2, characterized in that: One end of the first fixing cloth away from the inner zipper is aligned with the stretch cloth and is fixed to the stretch cloth and the first zipper cloth by sewing. One end of the second fixing cloth away from the inner zipper is fixed to the stretch cloth by sewing.

4. The telescopic zipper according to claim 2, characterized in that: One end of the telescopic cloth is folded to form the first fixing cloth, and the folded portion is fixed to the first zipper cloth by sewing.

5. The telescopic zipper according to claim 1, characterized in that: The accommodating space is annular, the supporting member is provided with a supporting surface facing the telescopic cloth, and the supporting surface is arranged in a horizontal direction.

6. The telescopic zipper according to claim 1, characterized in that: The supporting member is hollow.

7. The telescopic zipper according to any one of claims 1 to 6, characterized in that: The first zipper teeth and the second zipper teeth are inverted on the inner sides of the first zipper cloth and the second zipper cloth respectively.

8. The telescopic zipper according to any one of claims 1 to 6, characterized in that: The support member is made of plastic, metal, wood, leather, carbon fiber or foam material.

9. A double-layer telescopic zipper, characterized in that: The invention comprises two telescopic zippers according to any one of claims 1 to 8, wherein one end of the two first zipper cloths away from the first zipper teeth is provided with main zipper teeth, and the two first zipper cloths are configured to be connected via the main zipper teeth.

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