A food packaging bag
By adding a magnetic clamp to the self-sealing strip of food packaging bags, the problem of incomplete sealing after repeated opening and closing of the self-sealing strip is solved, achieving better sealing performance and adjustable opening size, thus improving the food preservation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GANGSONG MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-28
AI Technical Summary
The sealing performance of existing food packaging bags weakens after repeated opening and closing, and the traditional snap-fit method is prone to loosening, affecting the preservation effect. In addition, the fixed opening size is not easy to adjust.
A magnetic sealing clamp is added to the self-sealing strip, including a first clamp and a second clamp, which are connected by a magnetic clamp. Combined with a flexible connection part and a slot design, it achieves double sealing and adjustable opening size.
It improves the sealing performance of packaging bags, extends the shelf life of food, facilitates food storage and retrieval, and enhances moisture-proof and air-proof capabilities.
Smart Images
Figure CN224563158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag technology, and in particular to a food packaging bag. Background Technology
[0002] Food packaging bags are widely used for packaging and preserving various products such as snacks, dried goods, tea, and frozen foods. To facilitate repeated use of the contents and ensure their freshness, common food packaging bags on the market usually have a self-sealing strip at the opening. This self-sealing strip, through the interlocking of its sub-strip and main strip, can achieve a preliminary seal at the bag opening, effectively preventing moisture intrusion and spillage of contents.
[0003] However, existing self-sealing strips have certain limitations. Relying on physical snaps for sealing, their sealing performance is limited. After repeated opening and closing, the interlocking force of the strips may weaken, leading to a loose seal. To achieve better preservation, external clips or other tools are often needed to reseal the bag opening. However, this not only increases the user's steps but also presents the problem of lost or incompatible clips.
[0004] Chinese utility model patent CN214525485U discloses an environmentally friendly food packaging bag. It uses a first food packaging bag sealing and snapping mechanism and a second food packaging bag sealing and snapping mechanism to completely close and seal the bag opening. However, after repeated opening and closing, the snapping force may weaken, resulting in an incomplete seal. In addition, the two sealing and fixing plates at the opening limit the size of the opening, making it inconvenient to store and retrieve food.
[0005] Therefore, the market urgently needs a food packaging bag with better sealing performance and easier use to better meet consumers' needs for food preservation. Utility Model Content
[0006] The purpose of this invention is to provide a food packaging bag to solve the problems mentioned in the background art.
[0007] The above-mentioned objective of this utility model is achieved through the following technical solution: a food packaging bag, comprising a bag body and an opening disposed at the upper end of the bag body, and further comprising: A self-sealing strip, disposed between the inner walls on both sides of the opening, includes a sub-strip and a mother strip; A sealing clamp is disposed above the self-sealing strip and is fixedly connected to one side of the bag opening; The sealing clamping component includes a first clamping plate, a second clamping plate, and a magnetic suction component disposed between the two. The first clamping plate and the second clamping plate are connected to the upper end of the bag body and clamp the opening of the bag body.
[0008] Preferably, the upper end of the bag is provided with a tear strip, which is used to open the opening.
[0009] Preferably, the lengths of the first clamp and the second clamp are the same as the width of the bag body.
[0010] Preferably, the first clamp is fixedly connected to one side of the opening of the bag body, and the upper end of the second clamp is movably connected to the upper end of the first clamp, so that the second clamp can be flipped relative to the first clamp.
[0011] Preferably, the upper end of the second clamping plate is connected to the upper end of the first clamping plate by a flexible connecting part.
[0012] Preferably, the lower end of the second clamp is provided with a notch on the side near the outer wall of the bag.
[0013] Preferably, the clamping surfaces of the first clamping plate and the second clamping plate are respectively provided with protrusions and slots that cooperate with the protrusions.
[0014] Preferably, the clamping surfaces of the first clamping plate and the second clamping plate are provided with mounting grooves, the magnetic suction element is embedded in the mounting grooves, and the end face of the magnetic suction element is flush with the clamping surfaces of the first clamping plate and the second clamping plate.
[0015] The beneficial effects of this utility model are: This utility model adds a magnetic sealing clamp above the traditional self-sealing strip, forming a double insurance mechanism of self-sealing strip + magnetic sealing, which greatly improves the moisture-proof, air-proof and anti-oxidation capabilities of the packaging bag and significantly extends the shelf life of food. The sealing clamp is fixedly connected to one side of the bag opening, allowing the other side of the bag opening to deform freely, making it easy to adjust the size of the opening for food storage and retrieval. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the bag body when the opening is in the open state in an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the bag when the opening is sealed in an embodiment of this utility model; In the diagram: 1-bag body, 101-opening, 102-tear strip, 2-self-sealing strip, 3-sealing clamp, 301-first clamp, 302-second clamp, 303-magnetic suction, 304-flexible connection, 305-protrusion, 306-slot, 307-notch. Detailed Implementation
[0017] The present invention will be further described in detail below with reference to the accompanying drawings.
[0018] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.
[0019] Example: like Figure 1-3 As shown, a food packaging bag includes a bag body 1, which has an opening 101 at its upper end. A tear strip 102 is provided at the upper end of the bag body 1, and the opening 101 of the bag body 1 can be opened by tearing the tear strip 102.
[0020] A self-sealing strip 2 is provided below the opening 101, between the inner walls on both sides of the opening 101. The self-sealing strip 2 includes a sub-strip and a mother strip, which are respectively fixed to the inner wall of the bag body 1.
[0021] A sealing clamp 3 is provided at the opening 101 of the bag body 1. The sealing clamp 3 is located above the self-sealing strip 2 and is fixedly connected to one side of the opening 101 of the bag body 1.
[0022] The sealing clamping member 3 includes a first clamping plate 301, a second clamping plate 302, and a magnetic suction member 303 disposed between the two. The first clamping plate 301 and the second clamping plate 302 are connected to the upper end of the bag body 1 and clamp the opening 101 of the bag body 1.
[0023] In this embodiment, the first clamping plate 301 is bonded to one side of the opening 101 of the bag body 1 by adhesive bonding, and the upper end of the second clamping plate 302 is movably connected to the upper end of the first clamping plate 301, so that the second clamping plate 302 can be flipped relative to the first clamping plate 301, and the opening of the bag body 1 can be adjusted by deformation to adjust the opening size.
[0024] Specifically, the upper end of the second clamping plate 302 is connected to the upper end of the first clamping plate 301 via a flexible connecting part 304. The flexible connecting part 304 is made of flexible plastic and is integrally connected to the first clamping plate 301 and the second clamping plate 302.
[0025] The lengths of the first clamping plate 301 and the second clamping plate 302 are the same as the width of the bag body 1, or the lengths of the first clamping plate 301 and the second clamping plate 302 may be slightly greater than the width of the bag body 1.
[0026] Mounting grooves are provided on the clamping surfaces of the first clamping plate 301 and the second clamping plate 302. A magnetic attractor 303 is embedded in the mounting groove, and the end face of the magnetic attractor 303 is flush with the clamping surfaces of the first clamping plate 301 and the second clamping plate 302. In this embodiment, the magnetic attractor 303 is a magnet, and the two magnets on the first clamping plate 301 and the second clamping plate 302 can attract each other.
[0027] The lower end of the second clamp 302 is provided with a notch 307 on the side near the outer wall of the bag body 1, so that a finger or nail can be inserted into the notch 307 to open the second clamp 302.
[0028] The clamping surfaces of the first clamping plate 301 and the second clamping plate 302 are respectively provided with protrusions 305 and slots 306 that cooperate with the protrusions 305. Because the surface of the bag is relatively smooth, the bag body 1 that is in contact with the second clamping plate 302 is prone to slipping when the first clamping plate 301 and the second clamping plate 302 are clamped. Therefore, by providing protrusions 305 and slots 306, the bag body 1 is partially inserted between the protrusions 305 and the slots 306, thereby improving the stability of clamping.
Claims
1. A food packaging bag, comprising a bag body (1) and an opening (101) disposed at the upper end of the bag body (1), characterized in that, Also includes: The self-sealing strip (2) is disposed between the inner walls on both sides of the opening (101), and includes a sub-strip and a mother strip; A sealing clamp (3) is disposed above the self-sealing strip (2) and is fixedly connected to one side of the opening (101) of the bag body (1); The sealing clamp (3) includes a first clamp (301), a second clamp (302), and a magnetic suction member (303) disposed between the two. The first clamp (301) and the second clamp (302) are connected to the upper end of the bag body (1) and clamp the opening (101) of the bag body (1).
2. The food packaging bag according to claim 1, characterized in that: The upper end of the bag body (1) is provided with a tear strip (102) to open the opening (101).
3. A food packaging bag according to claim 1, characterized in that: The lengths of the first clamp (301) and the second clamp (302) are the same as the width of the bag body (1).
4. A food packaging bag according to claim 1, characterized in that: The first clamp (301) is fixedly connected to one side of the opening (101) of the bag body (1), and the upper end of the second clamp (302) is movably connected to the upper end of the first clamp (301), so that the second clamp (302) can be flipped relative to the first clamp (301).
5. A food packaging bag according to claim 4, characterized in that: The upper end of the second clamping plate (302) is connected to the upper end of the first clamping plate (301) by a flexible connecting part (304).
6. A food packaging bag according to claim 5, characterized in that: The lower end of the second clamp (302) is provided with a notch (307) on the side near the outer wall of the bag body (1).
7. A food packaging bag according to claim 1, characterized in that: The clamping surfaces of the first clamping plate (301) and the second clamping plate (302) are respectively provided with a protrusion (305) and a slot (306) that cooperates with the protrusion (305).
8. A food packaging bag according to claim 1, characterized in that: The clamping surfaces of the first clamping plate (301) and the second clamping plate (302) are provided with mounting grooves, and the magnetic suction member (303) is embedded in the mounting grooves, and the end face of the magnetic suction member (303) is flush with the clamping surfaces of the first clamping plate (301) and the second clamping plate (302).