A waterproof sealing structure of a sealing bag without a puller

Abstract

The utility model provides a kind of waterproof sealing structure of sealing bag without pull head, including first seal strip part and second seal strip part, the first seal strip part includes first connecting part and first clamping part, the second seal strip part includes second connecting part and second clamping part, the first connecting part and second connecting part are fixed in sealing bag opening both sides position respectively, first connecting part other end is connected with first clamping part, second connecting part other end is connected with second clamping part, first clamping part and second clamping part are mutually sealed and buckled arrangement.The utility model adopts sealing structure to be more simple, and without pull head, seal strip part can be integrally injection molded and made, production efficiency is higher, reduces manufacturing cost, and it is easy and convenient to operate, by barb strip and side fence and card slot are mutually sealed, sealing area is larger, waterproof sealing effect is better.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure technology, and in particular to a waterproof sealing structure for a pull-out sealing bag. Background Technology

[0002] Traditional waterproof resealable bags generally rely on zippers (zipper pulls) for opening and closing. These structures create a physical barrier through the interlocking teeth and sliding of the zipper pull, but their waterproof performance has significant shortcomings:

[0003] Insufficient sealing leaves microscopic gaps between the zipper teeth, allowing water molecules to seep in under external pressure (such as immersion or water pressure). The risk of leakage increases dramatically, especially when the zipper pull is not fully closed or after prolonged wear.

[0004] The structure is not very impact-resistant, and the connection between the zipper and the rail is easily deformed by external forces (squeezing, bumping), which can damage the continuity of the sealing line. For example, when the backpack is dropped, the zipper is displaced by the impact and instantly loses its waterproofness.

[0005] Furthermore, the existing sealing structure of the sealed bag requires a high cost to produce the pull tab.

[0006] There is a need for a new type of waterproof sealing structure for pull-out resealable bags that can solve the problems mentioned above. Utility Model Content

[0007] This utility model provides a waterproof sealing structure for a pull-free sealing bag. By technically modifying the existing sealing structure, it solves the problems of the existing sealing structure requiring a pull, resulting in high cost and poor sealing effect.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A waterproof sealing structure for a pull-out resealable bag includes a first sealing strip portion and a second sealing strip portion. The first sealing strip portion includes a first connecting portion and a first engaging portion. The second sealing strip portion includes a second connecting portion and a second engaging portion. The first connecting portion and the second connecting portion are respectively fixed to both sides of the opening of the resealable bag. The other end of the first connecting portion is connected to the first engaging portion, and the other end of the second connecting portion is connected to the second engaging portion. The first engaging portion and the second engaging portion are mutually sealed and fastened together.

[0010] Preferably, the first connecting portion and the first engaging portion are integrally formed, and the second connecting portion and the second engaging portion are integrally formed.

[0011] Preferably, the first engaging portion includes a first barb and a first side stop, with the bottom ends of the barb connected to the first connecting portion and the side stop respectively, and a first groove formed between the first barb and the first side stop. The second engaging portion includes a second barb and a second side stop, with the bottom ends of the second barb connected to the second connecting portion and the side stop respectively, and a second groove formed between the second barb and the second side stop, and a third groove formed between the second barb and the second connecting portion. The upper ends of the first and second barb extend to the left and right sides with barbs, and the ends of the first and second side stops are both turned inward to form a hook structure. The first barb and the second groove are interlocked, the second barb and the first groove are interlocked, and the first side stop and the third groove are interlocked.

[0012] Preferably, the first slot has inwardly recessed side walls forming a first groove, which is configured to cooperate with the barb of the second barb strip; the second slot has inwardly recessed side walls forming a second groove, which is configured to cooperate with the barb of the first barb strip; and the third slot is configured to cooperate with the bent hook structure of the first side stop bar.

[0013] Preferably, the inner surface of the barb is a bevel.

[0014] Preferably, a U-shaped structure is formed at the connection between the first barb and the first connecting part, and an L-shaped structure is formed at the connection between the second barb and the second connecting part.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model features a first sealing strip and a second sealing strip on both sides of the opening of a sealed bag. The first engaging portion of the first sealing strip and the second engaging portion of the second sealing strip are each equipped with a barb and a side bar. The barb has a barb structure, and the side bar has a hook structure. The barb and side bar form a groove. In use, pressing the first and second sealing strips together creates a sealing structure. The sealing structure used in this application is simpler and eliminates the need for a pull tab. The sealing strip can be integrally injection molded, resulting in higher production efficiency, reduced manufacturing costs, and simple and convenient operation. The barb and side bar seal against the groove, providing a larger sealing area and better waterproof sealing effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model when it is installed at the opening of a sealed bag;

[0018] Figure 2 This is a schematic diagram of the specific structure of the first sealing strip and the second sealing strip of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the present invention when the first and second engaging parts are pressed to seal;

[0020] Figure 4 This is a schematic diagram of the sealing structure when the bag opening of this utility model is pulled open to both sides;

[0021] Explanation of reference numerals in the attached diagram: 1. Sealed bag; 2. First sealing strip portion; 2. First connecting portion; 21. First engaging portion; 22. First barb strip; 221. First side guard strip; 222. First slot; 223. First groove; 2231. Second sealing strip portion; 3. Second connecting portion; 31. Second engaging portion; 32. Second barb strip; 321. Second side guard strip; 322. Second slot; 323. Second groove; 3231. Third slot; 324. Detailed Implementation

[0022] The specific content of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-4 As shown, this utility model provides a waterproof sealing structure for a pull-out sealed bag, including a first sealing strip part 2 and a second sealing strip part 3. The first sealing strip part 2 includes a first connecting part 21 and a first engaging part 22. The second sealing strip part 3 includes a second connecting part 31 and a second engaging part 32. The first connecting part 21 and the second connecting part 31 are respectively fixed on both sides of the opening of the sealed bag 1. The other end of the first connecting part 21 is connected to the first engaging part 22, and the other end of the second connecting part 31 is connected to the second engaging part 32. The first engaging part 22 and the second engaging part 32 are mutually sealed and fastened together.

[0024] Furthermore, in order to increase production efficiency and reduce processing costs, the first connecting part 21 and the first engaging part 22 are integrally formed, and the second connecting part 31 and the second engaging part 32 are integrally formed.

[0025] Furthermore, to achieve a sealing effect between the first engaging portion 22 and the second engaging portion 32, the first engaging portion 22 includes a first barb 221 and a first side stop 222. The bottom ends of the barb 221 are connected to the first connecting portion 21 and the side stop 222, respectively. A first groove 223 is formed between the first barb 221 and the first side stop 222. The second engaging portion 32 includes a second barb 321 and a second side stop 322. The bottom ends of the second barb 321 are connected to the second connecting portion 31 and the side stop 222, respectively. A second slot 323 is formed between the strips 322, and a third slot 324 is formed between the second barb strip 321 and the second connecting part 31. The upper ends of the first barb strip 221 and the second barb strip 321 are provided with barbs extending to the left and right sides. The ends of the first side bar 222 and the second side bar 322 are both turned inward to form a hook structure. The first barb strip 221 and the second slot 323 are interlocked with each other, the second barb strip 321 and the first slot 223 are interlocked with each other, and the first side bar 222 and the third slot 324 are interlocked with each other.

[0026] Furthermore, the first slot 223 has inwardly recessed side walls to form a first groove 2231, the first groove 2231 and the barb of the second barb strip 321 are mutually engaged; the second slot 323 has inwardly recessed side walls to form a second groove 3231, the second groove 3231 and the barb of the first barb strip 221 are mutually engaged; and the third slot 324 and the hook structure of the first side stop strip 222 are mutually engaged.

[0027] Furthermore, to achieve a tighter sealing connection, the inner surface of the barb is beveled. For example... Figure 2 As shown, both the first barb 221 and the second barb 321 are provided with inclined barbs, and the first groove 2231 and the second groove 3231 are provided with inclined surfaces that cooperate with the barbs, making it more difficult for the barbs to disengage from the slots when pulled, and the first engaging part 22 and the second engaging part 32 are more tightly connected.

[0028] Furthermore, such as Figure 4 As shown, a U-shaped structure is formed at the connection between the first barb 221 and the first connecting part 21, and an L-shaped structure is formed at the connection between the second barb 321 and the second connecting part 31.

[0029] The U-shaped structure at the first barb 221 and the L-shaped structure at the second barb 321 allow the first connecting part 21 and the second connecting part 31 to unfold relative to the sealing part when the opening of the sealed bag 1 is pulled open, reducing the pulling force received by the sealing part and thus ensuring a better waterproof sealing effect.

[0030] This utility model provides a first sealing strip portion 2 and a second sealing strip portion 3 on both sides of the opening of the sealed bag 1. The first engaging part 22 of the first sealing strip portion 2 and the second engaging part 32 of the second sealing strip portion 3 are provided with barbs and side bars. The barbs are provided with barb structures, and the side bars are provided with hook structures. The barbs and side bars form a groove. In use, the first sealing strip portion 2 and the second sealing strip portion 3 are pressed together to form a sealing structure. The sealing structure adopted in this application is simpler and does not require a pull head. The sealing strip portion can be integrally injection molded, which has higher production efficiency, reduces manufacturing costs, and is simple and convenient to operate. The barbs and side bars seal with the groove, resulting in a larger sealing area and better waterproof sealing effect.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A waterproof sealing structure for a pull-out resealable bag, characterized in that, It includes a first sealing strip portion and a second sealing strip portion. The first sealing strip portion includes a first connecting portion and a first engaging portion. The second sealing strip portion includes a second connecting portion and a second engaging portion. The first connecting portion and the second connecting portion are respectively fixed on both sides of the opening of the sealed bag. The other end of the first connecting portion is connected to the first engaging portion, and the other end of the second connecting portion is connected to the second engaging portion. The first engaging portion and the second engaging portion are mutually sealed and fastened together.

2. The waterproof sealing structure of a pull-out sealed bag according to claim 1, characterized in that, The first connecting part and the first engaging part are integrally formed, and the second connecting part and the second engaging part are integrally formed.

3. The waterproof sealing structure of a pull-out sealed bag according to claim 1, characterized in that, The first engaging portion includes a first barb and a first side stop. The bottom ends of the barb are connected to the first connecting portion and the side stop, respectively. A first groove is formed between the first barb and the first side stop. The second engaging portion includes a second barb and a second side stop. The bottom ends of the second barb are connected to the second connecting portion and the side stop, respectively. A second groove is formed between the second barb and the second side stop. A third groove is formed between the second barb and the second connecting portion. The upper ends of the first and second barb extend to the left and right sides with barbs. The ends of the first and second side stops are both turned inward to form a hook structure. The first barb and the second groove are interlocked. The second barb and the first groove are interlocked. The first side stop and the third groove are interlocked.

4. The waterproof sealing structure of a pull-out sealed bag according to claim 3, characterized in that... The first slot has inwardly recessed side walls forming a first groove, which is configured to cooperate with the barb of the second barb strip. The second slot has inwardly recessed side walls forming a second groove, which is configured to cooperate with the barb of the first barb strip. The third slot is configured to cooperate with the bent hook structure of the first side stop strip.

5. The waterproof sealing structure of a pull-out sealed bag according to claim 3, characterized in that... The inner side of the barb is a slope.

6. The waterproof sealing structure of a pull-out resealable bag according to claim 3, characterized in that... A U-shaped structure is formed at the connection between the first barb and the first connecting part, and an L-shaped structure is formed at the connection between the second barb and the second connecting part.

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