Linear flexible packaging bag easy to tear
By designing sealing grooves, pull strips, and concave and convex bone structures on the packaging bags, the problems of large tearing force and difficulty in reuse of packaging bags are solved, achieving the effect of easy tearing and secondary sealing, preventing items from falling out and deteriorating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LIHONG PACKING CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-05-19
AI Technical Summary
Existing packaging bags require considerable force to tear open, are prone to breakage, and are difficult to tear open a second time, making them inconvenient to operate.
A straight-line easy-tear flexible packaging bag was designed. By providing a sealing groove on the second seal and slidingly connecting the sealing strip, and installing a pull strip and a force-bearing block on the outside of the sealing strip, combined with the interlocking structure of concave and convex bones, the first seal and the second seal can be separated. The easy-tear connecting strip maintains the connection and prevents the items from falling out.
It achieves the effect of being easy to tear open and not easy to break, while also having a secondary sealing function to prevent waste and spoilage of items, and to protect the contents inside.
Smart Images

Figure CN224257324U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag technology, and more specifically, to a straight-line easy-tear flexible packaging bag. Background Technology
[0002] Packaging bags are bags used to package various products, making it convenient to transport and store goods during the production and distribution process. However, when opening existing packaging bags, a large amount of force is often required to tear them, and they are prone to breakage. Furthermore, they are difficult to tear a second time, making the operation quite inconvenient. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a straight-line easy-tear soft packaging bag, which has the advantage of being easy to tear.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a straight-line easy-tear soft packaging bag, comprising a packaging bag, with a sealing opening one and a sealing opening two fixedly installed on the top of the packaging bag, the sealing opening two having a sealing groove, a sealing strip slidably connected inside the sealing groove, a connecting part fixedly installed on the outer side of the sealing strip, a pull strip fixedly installed on the outer side of the connecting part, a force-bearing block fixedly installed in the middle of the pull strip, the force-bearing block being located on the right side of the sealing strip.
[0005] As a preferred technical solution of this utility model, the interior of the first sealing opening is provided with a concave bone, and a convex bone is engaged inside the concave bone, and the convex bone is fixedly connected to the second sealing opening.
[0006] As a preferred embodiment of this utility model, a handle is fixedly installed on the left side of the seal, the handle is hollow inside, and the handle is located above the packaging bag.
[0007] As a preferred embodiment of this utility model, a first baffle is fixedly installed inside the packaging bag, an easy-tear connecting strip is fixedly installed in the middle of the first baffle, and a second baffle is fixedly installed on the right side of the easy-tear connecting strip. The first baffle and the second baffle are in an inverted V shape.
[0008] As a preferred embodiment of this utility model, the left side of the sealing strip is attached to the right side of the first seal, the sealing strip is located inside the second seal and is fixedly connected to the second seal, and the sealing strip is long and narrow.
[0009] As a preferred embodiment of this utility model, the pull strip is long and has strong toughness, and the pull strip is located on the right side of the second seal.
[0010] As a preferred embodiment of this utility model, the force-bearing block is a cuboid, located in the middle of the pull strip, and on the right side of the sealing strip.
[0011] As a preferred embodiment of this utility model, there are multiple easy-tear connecting strips, all of which are located in the middle of the first and second stop strips, and all of which are located below the first and second seals.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model features a first seal and a second seal fixedly installed on the top of a packaging bag. The second seal has a sealing groove, and a sealing strip is slidably connected inside the sealing groove. A connecting part is fixedly installed on the outside of the sealing strip, and a pull strip is fixedly installed on the outside of the connecting part. A concave bone is fixedly installed in the middle of the pull strip, located on the right side of the sealing strip. The sealing strip is then attached to the first seal. When the inside of the packaging bag needs to be torn open, the front and back sides of the sealing strip are first slightly torn open through the connecting part, allowing the sealing strip to tear between the sealing groove and the first seal. Then, the pull strip is pulled to the right through the concave bone, causing the connecting part to move towards the middle of the second seal. Simultaneously, the sealing strip gradually separates from the right side of the first seal, thus separating the first and second seals. This achieves the effect of easy tearing without breaking.
[0014] 2. This utility model features a concave bone inside the first sealing section, with a convex bone engaged within it. The convex bone is fixedly connected to the second sealing section. Through the engagement of the convex bone with the concave bone, when the second sealing section separates from the first, the concave and convex bones also separate simultaneously, opening the packaging bag. Furthermore, when there are remaining items inside the bag that need to be stored, the convex bone is pressed into the concave bone, achieving a secondary seal. This allows for convenient storage and reduces the rate of spoilage of the items inside the bag in a short time. Additionally, due to the interlocking of the first and second baffles... The packaging is fixedly connected by easy-tear strips. These strips maintain the connection between the first and second baffles and facilitate tearing. When the first and second seals are torn apart, the multiple easy-tear strips break in the middle, separating the first and second baffles. However, the separation may cause significant shaking, potentially spilling the contents of the packaging bag. In this case, the first and second baffles block the contents of the packaging bag at the moment the easy-tear strips are torn, effectively preventing the contents from falling out and providing protection for the contents. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;
[0017] Figure 3 This is a schematic diagram of the packaging bag structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the baffle structure of this utility model;
[0019] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.
[0020] In the diagram: 1. Packaging bag; 2. Seal one; 3. Seal two; 4. Sealing groove; 5. Sealing strip; 6. Connecting part; 7. Pull strip; 8. Concave bone; 9. Protruding bone; 10. Handle; 11. Stop strip one; 12. Easy-tear connecting strip; 13. Stop strip two; 14. Stress block. Detailed Implementation
[0021] 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.
[0022] like Figures 1 to 5 As shown, this utility model provides a straight-line easy-tear soft packaging bag, including a packaging bag 1. A first seal 2 and a second seal 3 are fixedly installed on the top of the packaging bag 1. The second seal 3 has a sealing groove 4. A sealing strip 5 is slidably connected inside the sealing groove 4. A connecting part 6 is fixedly installed on the outside of the sealing strip 5. A pull strip 7 is fixedly installed on the outside of the connecting part 6. A force-bearing block 14 is fixedly installed in the middle of the pull strip 7. The force-bearing block 14 is located on the right side of the sealing strip 5.
[0023] When it is necessary to tear open the inside of the packaging bag 1, firstly, slightly tear open the front and back sides of the sealing strip 5 through the connecting part 6, so that the sealing strip 5 is torn open between the sealing groove 4 and the first seal 2. At this time, pull the pull strip 7 out to the right through the concave bone 8, so that the connecting part 6 moves towards the middle of the second seal 3, and at the same time, the sealing strip 5 gradually separates from the right side of the first seal 2, so that the first seal 2 and the second seal 3 are separated, thereby achieving the effect of easy tearing and not easy to break.
[0024] Among them, the interior of the first seal 2 is provided with a concave bone 8, and the interior of the concave bone 8 is fitted with a convex bone 9, which is fixedly connected to the second seal 3.
[0025] The protruding bone 9, through its interlocking action with the concave bone 8, allows the concave bone 8 and the protruding bone 9 to separate simultaneously when the second seal 3 is separated from the first seal 2, thus opening the interior of the packaging bag 1. Furthermore, when there are remaining items inside the packaging bag 1 that need to be stored, the protruding bone 9 can be pressed into the concave bone 8, thereby achieving a secondary seal on the interior of the packaging bag 1. This allows for immediate storage and sealing, reducing the rate of spoilage of the items inside the packaging bag 1 in a short period.
[0026] Among them, a handle 10 is fixedly installed on the left side of the seal 12. The handle 10 is hollow inside and is located above the packaging bag 1.
[0027] The main function of the handle 10 is to quickly separate the seal 2 and the seal 3 when it is necessary to tear the seal 2 and the seal 3. Since the handle 10 is fixedly connected to the seal 2, the handle 10 is pulled to the left and the pull strip 7 is pulled to the right.
[0028] The packaging bag 1 has a baffle strip 11 fixedly installed inside, an easy-tear connecting strip 12 fixedly installed in the middle of the baffle strip 11, and a baffle strip 2 13 fixedly installed on the right side of the easy-tear connecting strip 12. The baffle strip 11 and the baffle strip 2 13 are in an inverted V shape.
[0029] The first baffle 11 and the second baffle 2 13 are connected by the easy-tear connecting strip 12. Their main function is to prevent the contents of the packaging bag 1 from falling out and causing waste when the first seal 2 and the second seal 3 are separated. At this moment, the first baffle 11 and the second baffle 2 13 block the contents of the packaging bag 1 at the moment the easy-tear connecting strip 12 is torn, which can effectively prevent the contents of the contents from falling out and achieve the effect of protecting the contents.
[0030] The left side of the sealing strip 5 is attached to the right side of the first seal 2. The sealing strip 5 is located inside the second seal 3 and is fixedly connected to the second seal 3. The sealing strip 5 is long and narrow.
[0031] The main function of the sealing strip 5 is to make the first seal 2 and the second seal 3 adhere together. At the same time, when the sealing strip 5 is torn apart from the first seal 2, the second seal 3 will be pulled apart from the first seal 2, so that the packaging bag 1 can be easily separated.
[0032] Among them, the pull strip 7 is long and has strong toughness. The pull strip 7 is located on the right side of the sealing strip 3.
[0033] The main function of the pull strip 7 is to prevent the sealing strip 5 from breaking during the pulling and tearing process, while ensuring that the front and rear ends of the sealing strip 5 separate towards the middle at the same time, thus improving the tearing efficiency.
[0034] Among them, the force-bearing block 14 is a cuboid, located in the middle of the pull strip 7, and on the right side of the sealing strip 5.
[0035] The main function of the force-bearing block 14 is to provide a reasonable force-bearing point for the pull bar 7 when it needs to be pulled, so as to prevent the hand from being squeezed during the pulling process.
[0036] There are multiple easy-tear connecting strips 12, all of which are located in the middle of the first stop strip 11 and the second stop strip 13, and all of which are located below the first seal 2 and the second seal 3.
[0037] The main function of the multiple easy-tear connecting strips 12 is to maintain the connection between the first baffle 11 and the second baffle 13, and to facilitate tearing. When the first seal 2 and the second seal 3 are separated and torn apart, the multiple easy-tear connecting strips 12 will also break in the middle, thereby achieving the effect of separating the first baffle 11 and the second baffle 13.
[0038] Working principle and usage process of this utility model:
[0039] First, a sealing slit 2 and a sealing slit 3 are fixedly installed on the top of the packaging bag 1. A sealing groove 4 is provided in the sealing slit 3. A sealing strip 5 is slidably connected inside the sealing groove 4. A connecting part 6 is fixedly installed on the outside of the sealing strip 5. A pull strip 7 is fixedly installed on the outside of the connecting part 6. A concave bone 8 is fixedly installed in the middle of the pull strip 7, and the concave bone 8 is located on the right side of the sealing strip 5. At the same time, the sealing strip 5 is attached to the sealing slit 2. When it is necessary to tear the inside of the packaging bag 1, the front and back sides of the sealing strip 5 are first slightly torn through the connecting part 6, so that the sealing strip 5 is torn between the sealing groove 4 and the sealing slit 2. Then, the pull strip 7 is pulled out to the right through the concave bone 8, so that the connecting part 6 moves towards the middle of the sealing slit 3. At the same time, the sealing strip 5 gradually separates from the right side of the sealing slit 2, so that the sealing slit 2 and the sealing slit 3 are separated, thereby achieving the effect of easy tearing and not easy to break.
[0040] Secondly, a concave bone 8 is provided inside the sealing opening 2, and a convex bone 9 is engaged inside the concave bone 8. The convex bone 9 is fixedly connected to the sealing opening 3. Through the engagement of the convex bone 9 with the concave bone 8, when the sealing opening 3 is separated from the sealing opening 2, the concave bone 8 and the convex bone 9 will also separate at the same time, thus achieving the effect of opening the inside of the packaging bag 1.
[0041] At the same time, when there are leftover items inside the packaging bag 1 that need to be stored, the protruding bone 9 is pressed into the concave bone 8, thereby achieving a secondary seal on the inside of the packaging bag 1, achieving the effect of sealing for storage at any time, and also reducing the speed of deterioration of the items inside the packaging bag 1 in a short period of time.
[0042] Secondly, since there is an easy-tear connecting strip 12 fixedly connected between the first baffle 11 and the second baffle 13, the easy-tear connecting strip 12 can maintain the connection between the first baffle 11 and the second baffle 13 and has the effect of easy tearing. When the first seal 2 and the second seal 3 are separated and torn apart, multiple easy-tear connecting strips 12 will also be broken in the middle under force, thereby achieving the effect of separating the first baffle 11 and the second baffle 13.
[0043] Finally, since the separation is likely to cause a large shaking, the contents of the packaging bag 1 may be poured out, resulting in waste. At this time, the first baffle 11 and the second baffle 13 block the contents of the packaging bag 1 at the moment the easy-tear connecting strip 12 is torn, which can effectively prevent the contents from falling out and achieve the effect of protecting the contents.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A straight-line easy-tear flexible packaging bag, comprising a packaging bag (1), characterized in that: The packaging bag (1) is fixedly installed with a first seal (2) and a second seal (3). The second seal (3) has a sealing groove (4). A sealing strip (5) is slidably connected inside the sealing groove (4). A connecting part (6) is fixedly installed on the outside of the sealing strip (5). A pull strip (7) is fixedly installed on the outside of the connecting part (6). A force-bearing block (14) is fixedly installed in the middle of the pull strip (7). The force-bearing block (14) is located on the right side of the sealing strip (5). The interior of the first seal (2) is provided with a concave bone (8), and a convex bone (9) is engaged inside the concave bone (8). The convex bone (9) is fixedly connected to the second seal (3). The concave bone (8) is fixedly installed in the middle of the pull strip (7). The concave bone (8) is located on the right side of the sealing strip (5).
2. The straight-line easy-tear flexible packaging bag according to claim 1, characterized in that: A handle (10) is fixedly installed on the left side of the seal (2). The handle (10) is hollow inside and is located above the packaging bag (1).
3. The straight-line easy-tear flexible packaging bag according to claim 1, characterized in that: The packaging bag (1) has a baffle strip (11) fixedly installed inside. An easy-tear joint strip (12) is fixedly installed in the middle of the baffle strip (11). A baffle strip (13) is fixedly installed on the right side of the easy-tear joint strip (12). The baffle strip (11) and the baffle strip (13) are in an inverted V shape.
4. The straight-line easy-tear flexible packaging bag according to claim 1, characterized in that: The left side of the sealing strip (5) is attached to the right side of the first seal (2). The sealing strip (5) is located inside the second seal (3) and is fixedly connected to the second seal (3). The sealing strip (5) is long.
5. A straight-line easy-tear flexible packaging bag according to claim 1, characterized in that: The pull strip (7) is long and has strong toughness. The pull strip (7) is located on the right side of the second seal (3).
6. The straight-line easy-tear flexible packaging bag according to claim 1, characterized in that: The force-bearing block (14) is a cuboid, located in the middle of the pull strip (7), and on the right side of the sealing strip (5).
7. A straight-line easy-tear flexible packaging bag according to claim 3, characterized in that: There are multiple easy-tearable connecting strips (12), and all of the multiple easy-tearable connecting strips (12) are located in the middle of the first (11) and the second (13) of the baffle strip, and all of the multiple easy-tearable connecting strips (12) are located below the first (2) and the second (3) of the seal.