Double-end airtight zipper and luggage

Abstract

The utility model relates to the technical field of zippers, and discloses a double-head airtight zipper and a luggage, the double-head airtight zipper comprises a soft base body, a zipper rack group is arranged on the base body, the zipper rack group comprises two opposite zipper racks, a first zipper head and a second zipper head are connected between the two zipper racks, and the first zipper head and the second zipper head are arranged on the base body. The sliding opening direction of the first zipper head is opposite to the sliding opening direction of the second zipper head, and a gap between the first zipper head and the second zipper head is in a closed state. According to the utility model, the first zipper puller and the second zipper puller are arranged, a luggage product can be opened from any end of the zipper rack group according to requirements, the first zipper puller and the second zipper puller are respectively positioned on two sides of the luggage after zipper openings of products such as the luggage are closed, and can be opened from any side of the luggage according to requirements, so that articles are convenient to take, and the use is more convenient; the first zipper head is clamped with the first clamping groove when being completely zipped up, the second zipper head is clamped with the second clamping groove when being completely zipped up, air leakage is not prone to occurring, and the use experience is good.

Description

Technical Field

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

[0002] A zipper is an accessory used for opening and closing on products such as bags, and an airtight zipper is a type of zipper that is made by pouring elastic sealing material into the gap of the zipper and increasing the height of the seam through the elastomeric material, so as to achieve a sealing effect when the zipper is combined, thereby achieving the windproof and waterproof effect of the zipper. It is widely used in products such as waterproof bags, underwater photography bags, swimming follower bags, and water walking balls. Among them, nylon airtight zippers are one of them. However, the existing nylon airtight zippers still have some shortcomings in actual use. The existing nylon zippers are Single-head zippers, which are used on products such as luggage, can only be opened on one side (the zipper head faces a fixed direction), which is inconvenient to take items. For example, for products such as luggage with single-head zippers, the zipper head is located on the right side of the product after the zipper is closed. When the user needs to take items on the left side inside, the zipper head needs to be pulled completely to the left to take out the required items, which is cumbersome to operate and inconvenient to take out. In addition, when the zipper head is pulled completely to the left, the bag is fully open. If there are many items filled inside at this time, they are easy to fall out of the bag, resulting in a poor user experience. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model provides a double-head airtight zipper, comprising: a soft base body, the base body being in the form of a sheet, a zipper rack group being arranged on the base body, the zipper rack group comprising two opposing zipper racks, a gap being formed between the two zipper racks, a first zipper head and a second zipper head being connected between the two zipper racks, the first zipper head and the second zipper head both being able to slide along the extending direction of the zipper racks to close / open the gap, the direction in which the first zipper head slides open being opposite to the direction in which the second zipper head slides open, and the gap between the first zipper head and the second zipper head is in a closed state; the first zipper head comprises two zipper racks respectively positioned at the ends thereof. The first flat bottom portion of the first curved head portion at both ends of the zipper head, the second zipper head includes a second flat bottom portion of the second curved head portion at both ends of the zipper head, the first flat bottom portion and the second flat bottom portion are arranged opposite to each other, and the two ends of the zipper rack group are respectively provided with a first card slot and a second card slot, the first card slot is used to engage with the first curved head portion, and the second card slot is used to engage with the second curved head portion; the utility model is provided with a first zipper head and a second zipper head, and the luggage product can be opened from either end of the zipper rack group as needed to facilitate taking items; when the first zipper head is fully pulled up, it engages with the first card slot, and when the second zipper head is fully pulled up, it engages with the second card slot. After engagement, it is not easy to leak, the sealing is improved, and the user experience is good.

[0004] Optionally, a sealing ridge group is provided on the base, and the sealing ridge group is located on one side of the zipper rack group, and the sealing ridge group includes a first sealing ridge and a second sealing ridge relative to each other; when the gap is closed, the first sealing ridge and the second sealing ridge at the position of the gap are driven to resist each other to seal the gap.

[0005] Optionally, the zipper rack is provided with a tooth groove, and the protrusion heights of the first sealing ridge and the second sealing ridge are both higher than the bottom of the tooth groove.

[0006] Optionally, the first card slot is a first horseshoe-shaped card slot, and the second card slot is a second horseshoe-shaped card slot.

[0007] Optionally, the first zipper pull and the second zipper pull have the same structure.

[0008] Optionally, a first zipper piece is connected to the first zipper slider, and a second zipper piece is connected to the second zipper slider.

[0009] Optionally, the base includes a fabric layer and a sealing layer, and waterproof glue is provided between the fabric layer and the sealing layer.

[0010] Optionally, the zipper rack is formed on the fabric layer, the first card slot and the second card slot are both formed on the sealing layer, and the sealing layer is made of TPU material.

[0011] Optionally, a gap is formed between the first zipper head and the zipper rack, and a raised thickened portion corresponding to the gap is formed at the edge of the slot of the first card slot; when the first zipper head is inserted into the first card slot, the raised thickened portion is inserted into the gap for sealing.

[0012] Compared with the prior art, the double-head airtight zipper of the utility model is provided with a first zipper head and a second zipper head, which can be used to open luggage products from either end of the zipper rack group as needed. After the zipper opening of the luggage and other products is closed, the first zipper head and the second zipper head are respectively located on both sides of the luggage, which can be opened from either side of the luggage as needed, making it easy to take out items and more convenient to use; when the first zipper head is fully zipped up, it engages with the first card slot, and when the second zipper head is fully zipped up, it engages with the second card slot. After engagement, it is not easy to leak air and improves the sealing, providing a good user experience; when the gap is closed, the first sealing ridge and the second sealing ridge at the position of the gap are driven to counteract each other to seal the gap and improve the sealing; the heights of the first sealing ridge and the second sealing ridge are both higher than the bottom of the tooth groove When the zipper racks on both sides are engaged, the bite force between the zipper racks causes the first sealing ridge to be sealed against the second sealing ridge to improve air tightness, so that the luggage products are not easily infiltrated with water and dust when used outdoors, and can better protect various items such as internal tight instruments and electronic equipment. The internal air is not easy to leak out, and it can also serve as a life-saving air bag for falling into the water, with a wide range of usage scenarios; the first card slot is a first horseshoe-shaped card slot, and the second card slot is a second horseshoe-shaped card slot. After engagement, the zipper head is not easy to be accidentally dislodged, thereby improving air tightness and reliability; the sealing layer is made of TPU material, which further improves air tightness and is more durable, suitable for indoor and outdoor environments; when the first zipper head is inserted into the first card slot, the raised thickened part is inserted into the gap for sealing, further improving air tightness.

[0013] The present invention also provides a bag, comprising the above-mentioned double-ended airtight zipper; the bag also has the beneficial effects of the above-mentioned double-ended airtight zipper, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the front view of the double-ended airtight zipper of the utility model;

[0015] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0016] Figure 3 for Figure 1 Enlarged view of middle part B;

[0017] Figure 4 for Figure 1 Enlarged view of the middle C section;

[0018] Figure 5 This is a partial rear view of the double-ended airtight zipper of the utility model;

[0019] Figure 6 for Figure 5 Enlarged view of the middle D part;

[0020] Figure 7This is a schematic diagram of the structure of the double-ended airtight zipper of the utility model close to the inner side of the bag;

[0021] The names of the components corresponding to the various reference numerals in the figure are: 1 is the base, 11 is the fabric layer, 12 is the sealing layer, 2 is the zipper rack, 201 is the gap, 21 is the tooth groove, 211 is the groove bottom, 3 is the first zipper head, 301 is the first curved head, 302 is the first flat bottom, 303 is the first zipper piece, 4 is the second zipper head, 401 is the second curved head, 402 is the second flat bottom, 403 is the second zipper piece, 51 is the first card slot, 52 is the second card slot, 61 is the first sealing ridge, 62 is the second sealing ridge, 7 is the gap, and 8 is the raised thickened portion. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships based on the position or location relationship of the product during normal use.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0025] See Figure 1-Figure 7, the utility model embodiment provides a double-head airtight zipper, comprising: a soft base 1, the base 1 is in a sheet shape, a zipper rack group is arranged on the base 1, the zipper rack group includes two opposite zipper racks 2, a gap 201 is formed between the two zipper racks 2, a first zipper head 3 and a second zipper head 4 are connected between the two zipper racks 2, the first zipper head 3 and the second zipper head 4 can both slide along the extension direction of the zipper rack 2 to close / open the gap 201, the sliding opening direction of the first zipper head 3 is opposite to the sliding opening direction of the second zipper head 4, and the gap 201 between the first zipper head 3 and the second zipper head 4 is in a closed state; the first zipper head 3 includes a first flat bottom 302 with a first curved head 301 located at both ends of the first zipper head 3, the second zipper head 4 includes a second flat bottom 402 with a second curved head 401 located at both ends of the second zipper head 4, the first flat bottom 302 and the second flat bottom 40 2 are arranged opposite to each other, and when the gap 201 is opened to the maximum, the first zipper slider 3 and the second zipper slider 4 slide together; in the past, with ordinary double-head zippers, when the two zipper sliders slide together, the gap 201 is closed. At this time, the arc-shaped heads of the two zipper sliders are close to each other, and there will be a large gap between the two arc-shaped heads (compared to the structure with flat bottoms close together), resulting in poor sealing effect; the two ends of the zipper rack group are respectively provided with a first card slot 51 and a second card slot 52, the first card slot 51 is used to engage with the first arc-shaped head 301, and the second card slot 52 is used to engage with the second arc-shaped head 401; the utility model is provided with a first zipper slider and a second zipper slider, and the luggage product can be opened from either end of the zipper rack group as needed, so as to facilitate taking out items; when the first zipper slider is fully pulled up, it engages with the first card slot, and when the second zipper slider is fully pulled up, it engages with the second card slot. After engagement, it is not easy to leak, which improves the sealing and provides a good user experience.

[0026] See Figure 1 、 Figure 2 and Figure 6, a sealing ridge group is provided on the base 1, and the sealing ridge group is located on one side of the zipper rack group. Specifically, the sealing ridge group is located on the side of the zipper rack group close to the outside world, and the sealing ridge group includes a first sealing ridge 61 and a second sealing ridge 62 relative to each other; when the gap 201 is closed, the first sealing ridge 61 and the second sealing ridge 62 at the position of the gap 201 are driven to counteract each other to seal the gap 201 to improve the sealing performance; the zipper rack 2 is provided with a tooth groove 21, and the heights of the first sealing ridge 61 and the second sealing ridge 62 are both higher than the groove bottom 211 of the tooth groove 21. When After the zipper racks 2 on both sides are engaged with each other, the engaging force between the zipper racks 2 causes the first sealing ridge 61 and the second sealing ridge 62 to be sealed against each other to improve the air tightness, thereby making it difficult for the luggage products to enter water and dust when used outdoors, and can better protect various items inside (precision instruments, electronic equipment, etc.), and the internal air is not easy to leak out. When the luggage using this double-head airtight zipper is hit, the internal gas can act as a buffer to avoid directly transmitting the impact force to the internal items and causing damage. Such luggage can also serve as an air bag for rescuing people when they fall into the water, and has a wide range of usage scenarios.

[0027] See Figures 1-4 The first card slot 51 is a first horseshoe-shaped card slot, and the second card slot 52 is a second horseshoe-shaped card slot. The engagement is firm and tight, and the zipper head is not easy to fall out by mistake after engagement, thereby improving air tightness and reliability; the first zipper head 3 and the second zipper head 4 have the same structure, and there is no need to distinguish between the two zipper heads during production and assembly, so the production and assembly costs are low; the first zipper head 3 is connected to the first zipper piece 303, and the second zipper piece 403 is connected to the second zipper head 4. The first zipper piece 303 and the second zipper piece 403 are both placed on the side close to the outside, which is convenient for opening / closing operations and easy to use.

[0028] See Figure 1 、 Figure 5 、 Figure 6 and Figure 7The base 1 includes a fabric layer 11 and a sealing layer 12. A waterproof glue is provided between the fabric layer 11 and the sealing layer 12 to improve the waterproof effect. The fabric layer 11 can be made of nylon or other materials. The zipper rack 2 is formed on the fabric layer 11. The zipper rack 2 is made of nylon. The first card slot 51 and the second card slot 52 are both formed in the sealing layer 12. The sealing layer 12 is made of TPU. TPU is thermoplastic polyurethane. Urethane), which has the advantages of being waterproof, sealed, high-tension, high-tensile, strong, wear-resistant, chemical-resistant and aging-resistant, further improving airtightness, and being more durable, suitable for both indoor and outdoor environments; a gap 7 is formed between the first zipper slider 3 and the zipper rack 2, and a raised thickened portion 8 corresponding to the gap 7 is formed at the edge of the notch of the first card slot 51; when the first zipper slider 3 is inserted into the first card slot 51, the raised thickened portion 8 is inserted into the gap 7 for sealing, further improving airtightness, and the raised thickened portion 8 is formed on the side away from the outside, that is, the side close to the inside of the bag; the same raised thickened portion is also formed at the edge of the notch of the second card slot to improve sealing, so as to improve the waterproof level of this double-head zipper and bag product to IPX7 or above.

[0029] The double-head airtight zipper of the utility model is provided with a first zipper head and a second zipper head, and luggage products can be opened from either end of the zipper rack group according to needs, so as to facilitate taking out items; when the first zipper head is fully pulled up, it is engaged with the first card slot, and when the second zipper head is fully pulled up, it is engaged with the second card slot. After being engaged, it is not easy to leak air and improves the sealing performance, so as to provide a good user experience; when the gap is closed, the first sealing ridge and the second sealing ridge at the position of the gap are driven to abut against each other to seal the gap and improve the sealing performance; the heights of the first sealing ridge and the second sealing ridge are both higher than the bottom of the tooth groove, and when the zipper racks on both sides are engaged with each other, the bite force between the zipper racks makes the first sealing ridge engaged. The convex strip and the second sealing convex strip are sealed against each other to improve the air tightness, so that the luggage products are not easy to get into water and dust when used outdoors, and can better protect various items such as internal tight instruments, electronic equipment, etc. The internal air is not easy to leak out, and it can also serve as a life-saving air bag for falling into the water, with a wide range of usage scenarios; the first card slot is a first horseshoe-shaped card slot, and the second card slot is a second horseshoe-shaped card slot. After being engaged, the zipper head is not easy to fall out by mistake, which improves air tightness and reliability; the sealing layer is made of TPU material, which further improves air tightness and is more durable, suitable for indoor and outdoor environments; when the first zipper head is inserted into the first card slot, the raised thickened part is inserted into the gap for sealing, further improving air tightness.

[0030] The present invention also provides a bag, comprising the above-mentioned double-ended airtight zipper; the bag also has the beneficial effects of the above-mentioned double-ended airtight zipper, which will not be described in detail here.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A double-ended airtight zipper comprising: A soft base (1) is provided, wherein the base (1) is in the form of a sheet, and a zipper rack group is provided on the base (1), wherein the zipper rack group includes two opposite zipper racks (2), and a gap (201) is formed between the two zipper racks (2). The invention is characterized in that a first zipper head (3) and a second zipper head (4) are connected between the two zipper racks (2), and the first zipper head (3) and the second zipper head (4) can both slide along the extension direction of the zipper rack (2) to close / open the gap (201), and the direction in which the first zipper head (3) slides open is opposite to the direction in which the second zipper head (4) slides open, and the first zipper head (3) and the second zipper head (4) slide open. The gap (201) between the two zipper heads (4) is in a closed state; the first zipper head (3) comprises a first flat bottom (302) of a first arc-shaped head (301) located at both ends of the first zipper head (3); the second zipper head (4) comprises a second flat bottom (402) of a second arc-shaped head (401) located at both ends of the second zipper head (4); the first flat bottom (302) and the second flat bottom (402) are arranged facing each other; the two ends of the zipper rack group are respectively provided with a first card slot (51) and a second card slot (52); the first card slot (51) is used to engage with the first arc-shaped head (301); and the second card slot (52) is used to engage with the second arc-shaped head (401).

2. The double-ended airtight zipper according to claim 1, wherein: A sealing ridge group is provided on the base (1), the sealing ridge group is located on one side of the zipper rack group, and the sealing ridge group includes a first sealing ridge (61) and a second sealing ridge (62) that are opposite to each other; when the gap (201) is closed, the first sealing ridge (61) and the second sealing ridge (62) at the position where the gap (201) is located are driven to abut against each other, thereby sealing the gap (201).

3. The double-ended airtight zipper according to claim 2, wherein: The zipper rack (2) is provided with a tooth groove (21), and the protrusion heights of the first sealing ridge (61) and the second sealing ridge (62) are both higher than the groove bottom (211) of the tooth groove (21).

4. The double-ended airtight zipper according to claim 1, wherein: The first card slot (51) is a first horseshoe-shaped card slot, and the second card slot (52) is a second horseshoe-shaped card slot.

5. The double-ended airtight zipper according to claim 1, wherein: The first zipper pull (3) and the second zipper pull (4) have the same structure.

6. The double-ended airtight zipper according to claim 1, wherein: The first zipper pull (3) is connected to a first zipper piece (303), and the second zipper pull (4) is connected to a second zipper piece (403).

7. The double-ended airtight zipper according to claim 1, wherein: The base (1) comprises a fabric layer (11) and a sealing layer (12), and waterproof glue is provided between the fabric layer (11) and the sealing layer (12).

8. The double-ended airtight zipper according to claim 7, wherein: The zipper rack (2) is formed on the fabric layer (11), the first card slot (51) and the second card slot (52) are both formed on the sealing layer (12), and the sealing layer (12) is made of TPU material.

9. The double-ended airtight zipper according to any one of claims 1 to 8, characterized in that: A gap (7) is formed between the first zipper head (3) and the zipper rack (2), and a raised thickened portion (8) corresponding to the gap (7) is formed at the edge of the notch of the first card slot (51); when the first zipper head (3) is inserted into the first card slot (51), the raised thickened portion (8) is inserted into the gap (7) for sealing.

10. A bag, characterized in that: The invention comprises a double-head airtight zipper as described in any one of claims 1 to 9.

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