Luggage sealing zipper with good waterproofness

Abstract

The utility model relates to the technical field of luggage zippers, and discloses a luggage sealing zipper with good waterproofness, which comprises a carrier provided with an opening and closing edge, chains arranged on the opposite sides of the opening and closing edge respectively, teeth of the two chains are connected in a sealing manner, and pullers are matched with the chains in a sliding manner; the pair of blocking pieces are oppositely and fixedly connected to the two sides of the opening and closing edge, and the sides, close to each other, of the pair of blocking pieces abut against each other; the first sealing strip and the second sealing strip are fixedly connected to the sides, close to each other, of the pair of blocking pieces respectively, the first sealing strip and the second sealing strip are engaged, and the first sealing strip and the second sealing strip can absorb water to expand; the sealing cover is fixedly connected to the terminating end of the chain, a clamping groove is formed in the sealing cover, and the pull head is connected with the clamping groove in a clamped mode. The waterproof performance of the whole sealing zipper structure can be improved.

Description

Technical Field

[0001] This utility model relates to the field of bag zipper technology, and in particular to a waterproof bag sealing zipper. Background Technology

[0002] Waterproof zippers are commonly used in the toothed structure of bags to meet the needs of waterproof sealing and opening / closing. However, existing waterproof zippers still have certain shortcomings. For example, in a bag zipper with a waterproof structure in patent number CN222171468U, a waterproof seal between the zipper heads is achieved by setting corresponding interlocking openings on the first and second zipper heads, but a waterproof structure for the chain structure is lacking, resulting in an imperfect overall waterproof effect for the bag. Therefore, there is an urgent need for a bag sealing zipper with good waterproof performance to solve the above-mentioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a waterproof sealing zipper for bags and luggage, in order to solve the problems existing in the prior art and improve the overall waterproofness of the sealing zipper structure.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides a waterproof sealing zipper for bags, characterized in that it includes:

[0005] The carrier has an opening and closing edge, and chains are respectively provided on opposite sides of the opening and closing edge. The teeth of the two chains are sealed together, and a pull head is slidably engaged on the chain.

[0006] A pair of baffles are fixedly connected to each other on both sides of the opening and closing edge, and the adjacent sides of the pair of baffles abut against each other;

[0007] The first sealing strip and the second sealing strip are respectively fixed to the adjacent sides of the pair of baffles, and the first sealing strip and the second sealing strip are engaged. Both the first sealing strip and the second sealing strip are capable of absorbing water and expanding.

[0008] A sealing cap is fixed to the end of the chain, and a slot is provided on the sealing cap, which is engaged with the pull head.

[0009] Preferably, a plurality of locking protrusions are fixedly connected to the side of the first sealing strip near the second sealing strip. The locking protrusions are arranged along the axis of the first sealing strip, and the plurality of locking protrusions are arranged at intervals in the vertical direction.

[0010] Preferably, the second sealing strip has a notch on the side near the first sealing strip, the number of the notches is the same as the number of the latching protrusions and they correspond one-to-one, and the latching protrusions engage with the adjacent notches.

[0011] Preferably, the protrusion is integrally formed with the first sealing strip.

[0012] Preferably, both the first sealing strip and the second sealing strip are polymer resin layers.

[0013] Preferably, a sealing block is fixed between two adjacent teeth on any one of the chains, and a groove is provided on the side of the sealing block away from the chain, and a tooth on the other chain is embedded in the adjacent groove.

[0014] Preferably, the sealing cover defines a sealing cavity, and the sealing cavity has a through groove on the side near the pull head. The slot is formed at the top of the through groove to form a protruding ridge at the top of the through groove. The outer wall of the pull head has a groove, and the protruding ridge and the groove are correspondingly matched and slidably engaged.

[0015] Preferably, the end of the chain is located inside the sealed cavity, and the pull head is engaged with the end of the chain.

[0016] The present invention discloses the following technical effects:

[0017] In this invention, the zipper pull is slidably engaged with two chains, which are fixedly connected to opposite sides of the opening and closing edges. A baffle covers the opening and closing edges, and the close-to-each sides of the baffles abut against each other, achieving a waterproof seal and improving the overall waterproofness of the zipper structure. Furthermore, a first sealing strip and a second sealing strip are fixedly connected to the close-to-each sides of the baffles, and the baffles abut against each other to bring the first and second sealing strips together. The first and second sealing strips are made of water-absorbing and expanding material, which effectively seals gaps through expansion when external water intrusion occurs, enhancing the waterproof effect of the chains. Moreover, the sealing cap engages with the zipper pull at the end of the chain, sealing any gaps that may appear at the end of the zipper pull, effectively improving the waterproof effect of the zipper structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a diagram showing the connection relationship between the baffle and the carrier in this utility model;

[0020] Figure 2 This is a diagram showing the positional relationship between the baffle and the chain in this utility model;

[0021] Figure 3 This is a schematic diagram of the sealing cap structure in this utility model;

[0022] Figure 4 This is a diagram showing the connection relationship between a pair of baffles in this utility model;

[0023] Figure 5 In this utility model Figure 4 A magnified view of a section at point A in the middle;

[0024] Among them, 1. carrier; 2. chain; 21. teeth; 3. pull head; 4. baffle; 5. first sealing strip; 6. second sealing strip; 7. sealing cover; 8. convex; 9. notch; 10. sealing block; 11. protruding ridge. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figures 1-5 This utility model provides a waterproof sealing zipper for bags, characterized in that it includes:

[0028] The carrier 1 has an opening and closing edge, and chains 2 are respectively provided on opposite sides of the opening and closing edge. The teeth 21 of the two chains 2 are sealed together, and a pull head 3 is slidably fitted on the chain 2.

[0029] A pair of baffles 4 are fixedly connected to each other on both sides of the opening and closing edge, and the sides of the pair of baffles 4 that are close to each other abut against each other;

[0030] The first sealing strip 5 and the second sealing strip 6 are respectively fixed to the close sides of a pair of baffles 4, and the first sealing strip 5 and the second sealing strip 6 are engaged. Both the first sealing strip 5 and the second sealing strip 6 can absorb water and expand.

[0031] The sealing cover 7 is fixed to the end of the chain 2. The sealing cover 7 has a slot, and the pull head 3 engages with the slot.

[0032] In this invention, the zipper pull 3 is slidably engaged with two chains 2, and the two chains 2 are fixedly connected to opposite sides of the opening and closing edge. The opening and closing edge is covered by a baffle 4. The mutual proximity of the baffle 4 abuts against each other to achieve a waterproof seal on the opening and closing edge, thereby improving the overall waterproof performance of the zipper structure. In addition, a first sealing strip 5 and a second sealing strip 6 are fixedly connected to the mutual proximity of the baffle 4. The first sealing strip 5 and the second sealing strip 6 are abutted against each other by the baffle 4. The first sealing strip 5 and the second sealing strip 6 are made of water-absorbing and expanding material. When dealing with external water intrusion, they can effectively seal the gaps through the expansion of their own structure, thereby enhancing the waterproof effect of the chain 2. Moreover, the sealing cap 7 is engaged with the zipper pull 3 at the end of the chain 2 to seal any gaps that may appear at the end of the zipper pull 3, effectively improving the waterproof effect of the zipper structure.

[0033] Furthermore, a number of locking protrusions 8 are fixedly connected to the side of the first sealing strip 5 near the second sealing strip 6. The locking protrusions 8 are arranged along the axis of the first sealing strip 5, and the number of locking protrusions 8 are arranged at intervals in the vertical direction.

[0034] Furthermore, the second sealing strip 6 has a notch 9 on the side close to the first sealing strip 5. The number of notches 9 and the number of protrusions 8 are the same and correspond one-to-one. The protrusions 8 engage with the adjacent notches 9.

[0035] The protrusion 8 on the first sealing strip 5 forms a raised structure, which improves the blocking effect against water intrusion. Correspondingly, a notch 9 is opened on the second sealing strip 6. The interlocking action of the protrusion 8 and the notch 9 makes the connection between the first sealing strip 5 and the second sealing strip 6 tighter, thus enhancing the waterproof effect.

[0036] Furthermore, the protrusion 8 is integrally formed with the first sealing strip 5.

[0037] Furthermore, both the first sealing strip 5 and the second sealing strip 6 are polymer resin layers.

[0038] Specifically, a polymer resin layer is used as the material for the first sealing strip 5 and the second sealing strip 6. During the processing, the protrusion 8 and the notch 9 are integrally formed to correspond to the first sealing strip 5 and the second sealing strip 6 respectively. The baffle 4 is made of common nylon material, which makes the hardness of the baffle 4 higher than that of the first sealing strip 5 and the second sealing strip 6, ensuring that the first sealing strip 5 and the second sealing strip 6 fit tightly together.

[0039] Furthermore, a sealing block 10 is fixed between two adjacent teeth 21 on any chain 2. The sealing block 10 has a groove on the side away from the chain 2, and the teeth on the other chain are embedded in the adjacent groove.

[0040] By using the sealing block 10 to fit the teeth 21, the teeth 21 are embedded in the groove, thereby improving the waterproof sealing of the chain 2.

[0041] Furthermore, the sealing cover 7 has a sealing cavity defined inside, and a through groove is provided on the side of the sealing cavity near the pull head 3. A slot is provided at the top of the through groove to form a protruding ridge 11 at the top of the through groove. A groove is provided on the outer wall of the pull head 3, and the protruding ridge 11 and the groove are slidably matched.

[0042] The protruding ridge 11 is formed by cutting the structure of the sealing cap 7, and a groove is opened on the pull head 3 so that the protruding ridge 11 can slide and connect with the groove to form a seal on the pull head 3.

[0043] Furthermore, the end of chain 2 is located inside the sealed cavity, and the pull head 3 is engaged with the end of chain 2.

[0044] By utilizing the interlocking mechanism between the end of chain 2 and the pull head 3, and by placing the end of chain 2 inside the sealed cavity, the pull head 3 can be fixed when it is inserted into the sealed cavity.

[0045] This utility model provides a working principle for a waterproof sealing zipper for bags:

[0046] Pull the zipper pull 3 to the end of the chain 2, so that the zipper pull 3 extends into the sealing cavity and is locked in place with the end of the chain 2. The cam slides into the groove, so that the sealing cover 7 seals the zipper pull 3. At the same time, the baffle 4 moves towards each other, causing the first sealing strip 5 and the second sealing strip 6 to abut against each other. The corresponding engagement of the protrusion 8 and the notch 9 is achieved. Furthermore, the first sealing strip 5 and the second sealing strip 6 expand when absorbing water, thereby effectively improving the overall waterproofness of the zipper structure.

[0047] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A waterproof sealing zipper for bags, characterized in that, include: The carrier (1) has an opening and closing edge, and chains (2) are respectively provided on opposite sides of the opening and closing edge. The teeth (21) of the two chains (2) are sealed together, and a pull head (3) is slidably fitted on the chain (2). A pair of baffles (4) are fixedly connected to each other on both sides of the opening and closing edge, and the adjacent sides of the pair of baffles (4) abut against each other; The first sealing strip (5) and the second sealing strip (6) are respectively fixed to the adjacent sides of the pair of baffles (4), and the first sealing strip (5) and the second sealing strip (6) are engaged. Both the first sealing strip (5) and the second sealing strip (6) can absorb water and expand. A sealing cap (7) is fixed to the end of the chain (2). A slot is provided on the sealing cap (7), and the pull head (3) engages with the slot.

2. The waterproof sealing zipper for bags according to claim 1, characterized in that: The first sealing strip (5) has a plurality of locking protrusions (8) fixed to one side near the second sealing strip (6). The locking protrusions (8) are arranged along the axis of the first sealing strip (5), and the plurality of locking protrusions (8) are arranged at intervals in the vertical direction.

3. The waterproof sealing zipper for bags according to claim 2, characterized in that: The second sealing strip (6) has a notch (9) on the side near the first sealing strip (5). The number of notches (9) is the same as the number of the latching protrusions (8) and they correspond one-to-one. The latching protrusions (8) engage with the adjacent notches (9).

4. The waterproof sealing zipper for bags according to claim 2, characterized in that: The protrusion (8) is integrally formed with the first sealing strip (5).

5. The waterproof sealing zipper for bags according to claim 1, characterized in that: Both the first sealing strip (5) and the second sealing strip (6) are polymer resin layers.

6. The waterproof sealing zipper for bags according to claim 1, characterized in that: A sealing block (10) is fixed between two adjacent teeth (21) on any one of the chains (2). The sealing block (10) has a groove on the side away from the chain (2), and the teeth (21) on the other chain (2) are embedded in the adjacent groove.

7. The waterproof sealing zipper for bags according to claim 1, characterized in that: The sealing cover (7) defines a sealing cavity. A through groove is provided on the side of the sealing cavity near the pull head (3). The slot is provided at the top of the through groove to form a protrusion (11) at the top of the through groove. A groove is provided on the outer side wall of the pull head (3). The protrusion (11) and the groove are correspondingly matched and slidably connected.

8. The waterproof sealing zipper for bags according to claim 7, characterized in that: The end of the chain (2) is located inside the sealed cavity, and the pull head (3) is engaged with the end of the chain (2).

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