Anti-misopening self-sealing bag
Patent Information
- Application Number
- CN202522396502.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-12
AI Technical Summary
[0003]然而,该自封袋设置了第一拉条和第二拉条以快速拉开密封条,但这些拉条直接暴露在密封袋本体外部,极易在使用过程中因误触而意外拉开第一密封条或第二密封条,从而导致储放腔内的物品洒落,影响了多用途自封袋的实际使用可靠性
[0006]实现上述技术方案,通过在袋体开口处向上延伸设置防护部,并将密封条及相连的拉条均容纳于防护部的内部空间,同时利用支撑条对密封条与袋体开口处进行连接支撑。在进行开启操作时,操作者必须将手指伸入两个防护部之间,才能接触并滑动拉条以打开密封条。利用防护部对拉条形成了物理遮蔽,有效避免了在正常使用或携带过程中,拉条因外部剐蹭或无意识触碰而被意外拉动,从而显著降低了密封条误开的风险,确保了袋内物品的储存安全性,提升了自封袋的实际使用可靠性。
Smart Images

Figure CN224830285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to self-sealing bags, and more particularly, to a self-sealing bag designed to prevent accidental opening. Background Technology
[0002] Currently, a Chinese utility model patent with authorization announcement number CN221987037U discloses a multi-purpose self-sealing bag, the main body of which has an open structure at both ends. This design aims to divide the internal space into two storage chambers through a third sealing strip in the middle of the inner cavity, enabling the separate storage of two types of items. To improve the sealing effect, both the first and second sealing strips at the top and bottom employ a double-strip structure.
[0003] However, the self-sealing bag is equipped with a first and a second pull strip to quickly open the seal. But these pull strips are directly exposed on the outside of the bag body, and are very easy to accidentally open the first or second seal strip during use, which may cause the contents of the storage cavity to spill out, affecting the actual reliability of the multi-purpose self-sealing bag. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a self-sealing bag that prevents accidental opening, so as to avoid accidentally pulling open the sealing strip.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a self-sealing bag to prevent accidental opening, including a bag body and a sealing strip, a pull strip slidably connected to the sealing strip, a support strip provided inside the bag body, the lower edge of the support strip being connected to the opening of the bag body, the upper edge of the support strip being connected to the sealing strip, the opening of the bag body extending away from the bottom of the bag to form a protective part, the sealing strip and the pull strip being located inside the protective part, and the two side edges of the two protective parts being fixedly connected.
[0006] To achieve the above technical solution, a protective section is installed extending upwards from the bag opening, housing the sealing strip and the connected pull tab within the internal space of the protective section. A support strip connects and supports the sealing strip to the bag opening. During opening, the operator must insert their finger between the two protective sections to access and slide the pull tab to open the sealing strip. The protective section physically shields the pull tab, effectively preventing accidental opening due to external scraping or unintentional contact during normal use or carrying. This significantly reduces the risk of accidental opening of the sealing strip, ensuring the safety of the contents and improving the reliability of the self-sealing bag in actual use.
[0007] As a preferred embodiment of this utility model, the lower edge of the support strip is fixed with an extension section, the two ends of the extension section are fixedly connected to the inner wall of the bag body, and a barrier portion is formed between the extension section and the inner wall of the bag body.
[0008] To achieve the above technical solution, an extension section is added to the lower edge of the support strip, and this extension section is fixedly connected to the inner wall of the bag, thus forming a barrier between the support strip and the inner wall of the bag. When the self-sealing bag is filled with items, this barrier section has a certain probability of preventing items from entering the area where the sealing strip and pull strip are located. This structure ensures that the engagement and sliding track of the sealing strip and pull strip remain clean and free from foreign object interference, thereby ensuring the tightness of the sealing strip closure and the smoothness of the pull strip sliding, further improving sealing performance and ease of operation.
[0009] As a preferred embodiment of the present invention, the bottom of the bag body extends away from the opening to form a support section, the bottom wall of the bag body is located between the two support sections and is fixedly connected to the two support sections respectively, and the two side edges between the two support sections are fixedly connected by a fixing part.
[0010] To achieve the above technical solution, two corresponding support sections extending away from the opening are provided at the bottom of the bag, and the bottom wall of the bag is connected between the two support sections, with the sides further connected by fixing parts. When the self-sealing bag is placed on a horizontal surface, the two support sections and the bottom wall of the bag together form a stable bottom support structure. This structure gives the self-sealing bag the ability to stand upright, allowing it to stand stably without external support, greatly facilitating the filling, retrieval, and display of items on shelves, and improving ease of use.
[0011] As a preferred embodiment of the present invention, a through hole is formed between the two support sections, and the through hole is located on the side of the fixing part facing the opening of the bag body.
[0012] To achieve the above technical solution, a through hole is made between the two support sections, near the fixing part. When the self-sealing bag stands on a flat surface with the bottom support section, this through hole allows air that may accumulate between the support structure and the placement surface to escape. This helps eliminate instability or bottom bulging caused by trapped air at the bottom, ensuring that the bottom of the bag fits more tightly against the placement surface, thereby enhancing the stability of the self-sealing bag when standing.
[0013] As a preferred embodiment of this utility model, the protective part is provided with a hanging hole.
[0014] To achieve the above technical solution, hanging holes are provided at appropriate locations on the protective part, enabling the self-sealing bags to be hung. In actual use or commercial distribution, users or sales personnel can conveniently hang the self-sealing bags on hooks, brackets, or shelves using these hanging holes. This not only facilitates the daily storage and retrieval of the self-sealing bags but also helps save product space and enhance commercial display, improving the product's convenience and applicability.
[0015] As a preferred embodiment of this utility model, a notch is provided on the side wall of the protective part, and the notch is located on the side of the sealing strip away from the bottom of the bag.
[0016] To achieve the above technical solution, a notch is provided on the side wall of the protective section, on the side of the sealing strip furthest from the bottom of the bag. This notch provides a clear tearing starting point when the user needs to open the packaging. The user can apply force along this notch to guide the tearing action, thus easily and neatly tearing open the protective section and even the upper edge of the bag. This reduces the difficulty of opening the packaging by hand and optimizes the user's bag-opening experience. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of the present invention.
[0018] Reference numerals: 1. Bag body; 2. Sealing strip; 3. Pull strip; 4. Support strip; 5. Protective part; 6. Notch; 7. Extension section; 8. Barrier part; 9. Support section; 10. Fixing part; 11. Through hole; 12. Cut; 13. Hanging hole. Detailed Implementation
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.
[0020] A self-sealing bag designed to prevent accidental opening includes a bag body 1 and a sealing strip 2. A pull strip 3 is slidably connected to the sealing strip 2. Sliding the pull strip 3 along the sealing strip 2 towards one end of the sealing strip 2 can open the sealing strip 2, and sliding the pull strip 3 towards the other end of the sealing strip 2 can close the sealing strip 2.
[0021] The bag body 1 has a support strip 4 inside. The lower edge of the support strip 4 is fixedly connected to the opening of the bag body 1, and the upper edge of the support strip 4 is fixedly connected to the sealing strip 2. The support strip 4 and the sealing strip 2 are arranged parallel to each other in the length direction and are both arranged along the width direction of the bag body 1.
[0022] Two protective sections 5 extend upward from the opening of the bag body 1, and the protective sections 5 are integrally connected to the bag body 1. The sealing strip 2 and the pull strip 3 are both located inside the space formed between the two protective sections 5. The two side edges between the two protective sections 5 are fixedly connected.
[0023] A notch 6 is provided on the side wall of the protective part 5, and the notch 6 is located above the sealing strip 2. A hanging hole 13 is provided on the protective part 5, and the hanging hole 13 is located above the notch 6.
[0024] An extension section 7 is integrally connected to the lower edge of the support strip 4. The length direction of the extension section 7 is parallel to the length direction of the support strip 4. Both ends of the extension section 7 are fixedly connected to the inner wall of the bag body 1, forming a barrier section 8 between the extension section 7 and the inner wall of the bag body 1.
[0025] The bottom of the bag body 1 extends downward to form two support sections 9. The bottom wall of the bag body 1 is located between the two support sections 9 and is fixedly connected to each of the two support sections 9. The two side edges between the two support sections 9 are fixedly connected by a fixing part 10. The fixing part 10 is a structure formed by heat-sealing the two support sections 9.
[0026] The fixing part 10 is semi-circular.
[0027] A through hole 11 is formed between the two support sections 9, and the through hole 11 is located on the side of the fixing part 10 facing the opening of the bag body 1.
[0028] A cutout 12 is provided between the two support sections 9. The cutout 12 is connected to the lower edge of the support section 9 and is located below the through hole 11.
[0029] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. A self-sealing bag designed to prevent accidental opening, comprising a bag body and a sealing strip, wherein a pull strip is slidably connected to the sealing strip, characterized in that: The bag body has a support strip inside. The lower edge of the support strip is connected to the opening of the bag body, and the upper edge of the support strip is connected to the sealing strip. The opening of the bag body extends away from the bottom of the bag to form a protective part. The sealing strip and the pull strip are both located inside the protective part, and the two sides of the two protective parts are fixedly connected.
2. The self-sealing bag for preventing accidental opening according to claim 1, characterized in that: The lower edge of the support strip is fixed with an extension section, and both ends of the extension section are fixedly connected to the inner wall of the bag body, forming a barrier between the extension section and the inner wall of the bag body.
3. The self-sealing bag for preventing accidental opening according to claim 1, characterized in that: The bottom of the bag extends away from the opening to form a support section. The bottom wall of the bag is located between the two support sections and is fixedly connected to the two support sections respectively. The two side edges between the two support sections are fixedly connected by a fixing part.
4. The self-sealing bag for preventing accidental opening according to claim 3, characterized in that: A through hole is formed between the two support sections, and the through hole is located on the side of the fixing part facing the opening of the bag body.
5. A self-sealing bag resistant to accidental opening according to claim 1, characterized in that: The protective part has hanging holes.
6. The self-sealing bag for preventing accidental opening according to claim 1, characterized in that: A notch is provided on the side wall of the protective part, and the notch is located on the side of the sealing strip away from the bottom of the bag.
Citation Information
Patent Citations
Multipurpose self-sealing bag
CN221987037U