A highly airtight packaging bag

Abstract

The utility model discloses a highly airtight packaging bag, relating to the technical field of packaging bag sealing structures, comprising a bag body, wherein the bag body is formed by gluing two front and rear abutment plates and a side plate which is an integral part of the side end bottom, a combined seal is arranged on the upper part of the bag body, a first seal is arranged on the top of the wall plate of the combined seal, a second seal is arranged on the lower part of the first seal, and a third seal is arranged on the lower part of the second seal. The utility model can better fix the combined seal by arranging the first seal and the third seal with higher connectivity, and avoid the combined seal from opening due to improper use, which reduces the airtightness of the packaging bag; by arranging the second seal with higher airtightness, the airtightness of the packaging bag can be better enhanced; by arranging the flexible rubber column and the blocking convex strip, the flexible rubber column in the rectangular notch can be pressed layer by layer to form each closed chamber that is blocked, thereby improving the airtightness of the second seal.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag sealing structures, in particular to a highly sealable packaging bag. Background Art

[0002] Sealed packaging bags are an indispensable packaging material in people's lives; especially in product sales, plastic packaging bags and sealed bags are everywhere, which brings convenience to sellers in packaging and distribution;

[0003] When the existing packaging bags are used, the sealing part of the packaging bags is only connected by a single sealing strip. Therefore, during the transportation of the packaging bags, as the external force is applied to the packaging bags, the sealing strip of the packaging bags is easily torn apart, resulting in poor firmness and sealing effect, which is inconvenient for people to use. Therefore, the present application designs a highly sealed packaging bag to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a highly sealed packaging bag.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a highly sealed packaging bag, including a bag body, which is composed of two front and rear abutting plates and a side panel that is glued together as an integral part of the side end bottom. A combined seal is provided on the upper part of the bag body, and a first seal is provided on the top of the wall panel of the combined seal, a second seal is provided on the lower part of the first seal, and a third seal is provided on the lower part of the second seal.

[0006] Preferably, the first seal strip consists of a first concave strip and a first convex strip, a B-shaped slot is transversely provided on the first concave strip, and two rectangular top blocks for engaging with the B-shaped slot are convexly provided on the side ends of the first convex strip.

[0007] Preferably, the second seal strip consists of a second concave strip and a second convex strip, a rectangular notch is transversely provided on the second concave strip, an arrow-shaped slot is provided at the end of the rectangular notch, a flexible rubber column is provided on the side end of the second convex strip, an arrow-shaped top block is provided on the side end of the flexible rubber column for engaging with the arrow-shaped slot, and a plurality of blocking convex strips are equidistantly provided on the upper and lower walls of the rectangular notch.

[0008] Preferably, the third seal is composed of a third concave strip and a third convex strip, and a plurality of inclined baffles are symmetrically provided on the third concave strip, and a clamping top block for cooperating with the inclined baffle is convexly provided on the side end of the third convex strip, and the inclination direction of the inclined baffle is consistent with the direction of the convex clamping top block.

[0009] Preferably, an expansion groove is provided on the side wall of the combined seal.

[0010] Preferably, a blocking strip for blocking the expansion groove is fixedly connected to the outer end of the side wall of the combined seal.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, by providing the first seal and the third seal with higher connectivity, the combined seal can be better fixed, and the combined seal can be prevented from opening due to improper use, which reduces the sealing of the packaging bag; by providing the second seal with higher airtightness, the airtightness of the packaging bag can be better enhanced; by providing the B-shaped card slot and the rectangular top block, when the rectangular top block inserted into the B-shaped card slot is pulled out, the convex strip in the middle of the B-shaped card slot is pressed, thereby making the first seal more difficult to separate, thereby enhancing the connectivity of the first seal; and by providing the flexible rubber column and the blocking convex strip, the airtightness of the packaging bag can be better enhanced; and The setting can make the flexible rubber columns in the rectangular notch be compressed layer by layer to form blocked closed chambers, thereby improving the airtightness of the second seal; through the setting of the inclined baffle and the clamping top block, the inclined baffle can be tilted to squeeze the clamping top block when the clamping top block is pulled out, thereby enhancing the connectivity of the third seal; through the setting of the expansion groove, the fulcrum can be increased, which facilitates the pulling of the combination seal to both sides, thereby undoing the seal of the combination seal and making the combination seal better able to be pulled open; through the setting of the blocking baffle, the packaging bag will not accidentally touch the expansion grooves on both sides of the combination seal during transportation, causing the packaging bag to be accidentally opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall sectional three-dimensional structure proposed by the utility model;

[0014] Figure 2 This is a partially cutaway enlarged three-dimensional structural diagram of the first seal proposed in the present invention;

[0015] Figure 3 This is a partially cutaway enlarged three-dimensional structural diagram of the second seal proposed in the present invention;

[0016] Figure 4 This is a partially cutaway enlarged three-dimensional structural diagram of the third seal proposed in the present invention;

[0017] Figure 5 This is a schematic diagram of a partially cutaway enlarged three-dimensional structure of the expansion slot proposed in the present invention.

[0018] Serial numbers in the figure: 1. Bag body; 2. Combined seal; 3. First seal; 4. Second seal; 5. Third seal; 6. B-shaped slot; 7. Rectangular top block; 8. Flexible rubber column; 9. Arrow slot; 10. Inclined baffle; 11. Snap-on top block; 12. Expanding slot; 13. Blocking baffle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Example: See Figure 1-5 The utility model relates to a highly airtight packaging bag, comprising a bag body 1, which is composed of two front and rear abutting plates and a side plate glued together as an integral part of the side end bottom. A combined seal 2 is provided on the upper part of the bag body 1, and a first seal 3 is provided on the top of the wall plate of the combined seal 2, a second seal 4 is provided on the lower part of the first seal 3, and a third seal 5 is provided on the lower part of the second seal 4. By providing the first seal 3 and the third seal 5 with high connectivity, the combined seal 2 can be better fixed to prevent the combined seal 2 from opening due to improper use, thereby reducing the sealing of the packaging bag. By providing the second seal 4 with high airtightness, the airtightness of the packaging bag can be better enhanced. The first seal 3 consists of a first concave strip and a first convex strip. A B-shaped card groove 6 is horizontally opened on the first concave strip, and two convex strips are provided on the side end of the first convex strip for cooperating with the B-shaped card groove 6. The clipped rectangular top block 7, through the setting of the B-shaped slot 6 and the rectangular top block 7, can make the rectangular top block 7 inserted into the B-shaped slot 6 be pulled out, pressing the convex strip in the middle of the B-shaped slot 6, thereby making the first seal 3 more difficult to separate, thereby enhancing the connectivity of the first seal 3; the second seal 4 is composed of a second concave strip and a second convex strip, and a rectangular notch is horizontally opened on the second concave strip, and an arrow slot 9 is opened at the end of the rectangular slot, and a flexible rubber column 8 is protruded from the side end of the second convex strip, and an arrow top block for cooperating with the arrow slot 9 is protruded from the side end of the flexible rubber column 8, and a number of blocking convex strips are equidistantly protruded on the upper and lower walls of the rectangular slot. Through the setting of the flexible rubber column 8 and the blocking convex strips, the flexible rubber column 8 in the rectangular slot can be pressed layer by layer to form isolated closed chambers, thereby improving the airtightness of the second seal 4.

[0021] In the present invention, the third seal 5 is composed of a third concave strip and a third convex strip. A plurality of inclined stoppers 10 are symmetrically protruded on the third concave strip. A clamping top block 11 is protruded on the side end of the third convex strip for cooperating with the inclined stopper 10. The inclination direction of the inclined stopper 10 is consistent with the direction of the protruding clamping top block 11. By setting the inclined stopper 10 and the clamping top block 11, the inclined stopper 10 can be tilted to squeeze the clamping top block 11 when the clamping top block 11 is pulled out, thereby strengthening the connection of the third seal 5. The side walls of the combined seal 2 are provided with expansion grooves 12. The provision of the expansion grooves 12 can improve the fulcrum point, making it easier to pull the combined seal 2 to both sides, thereby releasing the seal of the combined seal 2 and allowing the combined seal 2 to be opened better. The outer ends of the side walls of the combined seal 2 are fixedly connected with blocking strips 13 for blocking the expansion grooves 12. The provision of the blocking strips 13 can prevent the packaging bag from accidentally touching or pulling the expansion grooves 12 on both sides of the combined seal 2 during transportation, thereby preventing the packaging bag from being accidentally opened.

[0022] After the bag is opened, the first seal 3, the second seal 4 and the third seal 5 on the side of the combination seal 2 are pulled apart in sequence.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly airtight packaging bag, comprising a bag body (1), characterized in that: The bag body (1) is formed by gluing two front and rear abutment plates to an integral side plate at the bottom of the side end; a combined seal (2) is provided on the upper part of the bag body (1); a first seal (3) is provided on the top of the wall plate of the combined seal (2); a second seal (4) is provided on the lower part of the first seal (3); and a third seal (5) is provided on the lower part of the second seal (4).

2. A highly airtight packaging bag according to claim 1, characterized in that: The first sealing strip (3) is composed of a first concave strip and a first convex strip, the first concave strip is provided with a B-shaped card slot (6) in a transverse direction, and the side ends of the first convex strip are provided with two rectangular top blocks (7) for engaging with the B-shaped card slot (6).

3. A highly airtight packaging bag according to claim 2, characterized in that: The second sealing strip (4) is composed of a second concave strip and a second convex strip, the second concave strip is provided with a rectangular notch transversely, the end of the rectangular notch is provided with an arrow-shaped slot (9), a flexible rubber column (8) is provided on the side end of the second convex strip, an arrow-shaped top block for cooperating and engaging with the arrow-shaped slot (9) is provided on the side end of the flexible rubber column (8), and a plurality of blocking convex strips are provided on the upper and lower walls of the rectangular notch at equal intervals.

4. A highly airtight packaging bag according to claim 3, characterized in that: The third sealing strip (5) is composed of a third concave strip and a third convex strip, a plurality of inclined stop strips (10) are symmetrically protruded on the third concave strip, a clamping top block (11) for cooperating and clamping with the inclined stop strip (10) is protruded on the side end of the third convex strip, and the inclination direction of the inclined stop strip (10) is consistent with the direction of the protruding clamping top block (11).

5. A highly airtight packaging bag according to claim 4, characterized in that: An expansion groove (12) is provided on the side wall of the combined seal strip (2).

6. A highly airtight packaging bag according to claim 5, characterized in that: A blocking strip (13) for blocking the expansion groove (12) is fixedly connected to the outer end of the side wall of the combined sealing strip (2).

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