Sealed preservation bag

Abstract

The utility model relates to the technical field of freshness protection bags, in particular to a sealed freshness protection bag which comprises a bag body, a bag opening is formed in one side of the bag body, a double-faced adhesive tape structure is fixed to the inner side of the bag opening, a one-way air opening structure is arranged on one side of the bag body and comprises an air outlet, and an air outlet channel is fixed to the position, located at the air outlet, of the outer side of the bag body. And a plurality of membrane flap structures are fixed on the inner side of the air outlet channel. The utility model solves the problems that when excessive articles are contained in an existing fresh-keeping bag, the distance from a bag opening to a tying buckle is usually short, sealing is inconvenient, gas in the sealing bag is inconvenient to extrude after the bag opening is sealed, and the fresh keeping of the articles in the bag body is influenced.

Description

Technical Field

[0001] This utility model relates to the field of food preservation bag technology, specifically to a sealed food preservation bag. Background Technology

[0002] Food storage bags are plastic film products used to store food, keep it fresh, and prevent contamination. They are usually made of materials such as polyethylene (PE) and polypropylene (PP).

[0003] Disposable food storage bags have a wide range of applications. They are usually made up of several bags connected end to end by heat sealing. An easy-tear line is provided at the heat seal for easy individual use. However, when sealing existing food storage bags, the bag opening is usually twisted and tightened, and then a buckle is tied for sealing. However, when the food storage bag is filled with too many items, the distance left for the buckle at the bag opening is often too short, making it difficult to seal properly. Moreover, after sealing the bag opening, it is not easy to squeeze out the gas in the sealed bag, which affects the preservation of the items inside the bag. Utility Model Content

[0004] The technical problem this invention aims to solve is that when existing food storage bags contain too many items, the distance left for tying the buckle at the bag opening is often too short, making it difficult to seal. Furthermore, after sealing the bag opening, it is not easy to squeeze out the gas from the sealed bag, which affects the preservation of the items inside the bag.

[0005] To solve the above problems, the technical solution adopted by this utility model is a sealed food preservation bag, including a bag body, a bag opening on one side of the bag body, a double-sided adhesive structure fixed inside the bag opening, a one-way air vent structure on one side of the bag body, the one-way air vent structure including an air outlet, an air outlet channel fixed outside the bag body at the air outlet, and a number of membrane flap structures fixed inside the air outlet channel.

[0006] As a further embodiment of this utility model: the membrane flap structure is an arc-shaped thin film fixed inside the air outlet. The membrane flap structure is unidirectional and staggered inside the air outlet, which can prevent gas from entering the bag body from the air outlet of the air outlet.

[0007] As a further embodiment of this utility model: the openings and bottoms of two adjacent bags are connected by heat sealing, and an easy-tear line is provided to facilitate the separation of the two adjacent bags.

[0008] Compared with the prior art, the advantages of this utility model are as follows: This application adds a double-sided adhesive structure, which facilitates sealing the bag opening, and adds a one-way air vent structure. After the food preservation bag is sealed, if there is still air inside the bag, it can be squeezed to allow the gas to be output from the one-way air vent structure, so as to keep the items inside the bag fresh. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0010] Figure 1 This is a three-dimensional view of the overall structure of a sealed food preservation bag according to the present invention.

[0011] Figure 2 This is a schematic diagram showing the connection of multiple bag bodies in a sealed food preservation bag according to the present invention.

[0012] Figure 3 This is a cross-sectional view of the one-way air vent structure in a sealed food storage bag according to the present invention.

[0013] In the attached image:

[0014] 1. Bag body; 2. Double-sided adhesive structure; 3. Air outlet; 4. Membrane flap structure; 5. Easy-tear line; 1.1. Bag opening; 1.2. Air outlet. Detailed Implementation

[0015] 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.

[0016] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0017] Combined with appendix Figure 1-3 It can be seen that the bag includes a bag body 1, a bag opening 1.1 on one side of the bag body 1, and a double-sided adhesive structure 2 fixed inside the bag opening 1.1 to facilitate sealing the bag opening 1.1. A one-way air vent structure is provided on one side of the bag body 1 for one-way air outlet. The one-way air vent structure includes an air outlet 1.2. An air outlet channel 3 is fixed on the outside of the bag body 1 at the air outlet 1.2. Several membrane flap structures 4 are fixed inside the air outlet channel 3 to prevent gas from flowing back into the bag body 1. The membrane flap structure 4 is an arc-shaped thin film fixed inside the air outlet channel 3. The membrane flap structure 4 is unidirectional and staggered inside the air outlet channel 3 to prevent gas from entering the bag body 1 from the air outlet of the air outlet channel 3. The bag openings 1.1 of two adjacent bag bodies 1 are connected to the bottom of the bag body 1 by heat sealing and are provided with easy-tear lines 5 to facilitate separating two adjacent bag bodies 1.

[0018] The working principle of this application is as follows: When the bag body 1 is needed, the item is placed into the bag body 1 through the bag opening 1.1, and then the bag opening 1.1 is sealed by the double-sided adhesive structure 2 fixed inside the bag opening 1.1 to prevent the item from leaking out; when there is gas in the bag body 1 that needs to be released, the gas is released from the one-way vent structure provided on one side of the bag body 1, specifically, the gas enters the vent 3 from the vent 1.2. Since several membrane flap structures 4 are fixed inside the vent 3, these membrane flap structures 4 are arc-shaped thin membrane flaps fixed inside the vent 3. The membrane is unidirectionally arranged and staggered, so gas can only be discharged from the outlet 3 in one direction and cannot flow back into the bag body 1 from the outlet 1.2 of the outlet 3, thus achieving the effect of unidirectional gas discharge. Here, the outlet 3 and the membrane flap structure 4 can be regarded as a simple valve structure, which plays the role of controlling the unidirectional flow of gas. In addition, the bag openings 1.1 of two adjacent bag bodies 1 are connected to the bottom of the bag body 1 by heat sealing and are provided with easy-tear lines 5. When it is necessary to separate two adjacent bag bodies 1, they can be torn along the easy-tear lines 5.

[0019] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sealed food storage bag, comprising a bag body (1), characterized in that: The bag body (1) has a bag opening (1.1) on one side, and a double-sided adhesive structure (2) is fixed inside the bag opening (1.1). The bag body (1) has a one-way air vent structure on one side, which includes an air outlet (1.2). An air outlet channel (3) is fixed outside the bag body (1) at the air outlet (1.2), and several membrane flap structures (4) are fixed inside the air outlet channel (3).

2. The sealed food storage bag according to claim 1, characterized in that: The membrane flap structure (4) is an arc-shaped thin film fixed inside the air outlet (3). The membrane flap structure (4) is unidirectional and staggered inside the air outlet (3).

3. The sealed food storage bag according to claim 1, characterized in that: The openings (1.1) of two adjacent bags (1) are connected to the bottom of the bag body (1) by heat sealing, and an easy-tear line (5) is provided.

Images