High-barrier aluminum foil bag

Abstract

The utility model discloses a high-barrier aluminum foil bag which comprises an aluminum foil bag body, an exhaust hole is formed in one side of the aluminum foil bag body, an exhaust assembly is fixed to the outer side of the exhaust hole, the exhaust assembly comprises a sealing cover, a fixing frame and a plugging structure, the fixing frame is of a hollow structure without a cover at the front end, and an air hole is formed in the middle of the fixing frame. Inner grooves are forwards formed in the back faces of each set of air holes, blocking structures are arranged in the air holes, the movable rods drive the fixing plates to move outwards, then the springs are compressed, gas in the bag body can flow out of the air holes, after the gas is exhausted, the springs rebound, then the fixing plates, the movable rods and the cover plates are driven to return, the cover plates block the air holes, and therefore the sealing effect is achieved. And in cooperation with low air pressure on the inner side, the cover plate can be assisted to cover the outer side of the fixing frame, the blocking effect is achieved, and the effect of rapidly exhausting air can be achieved through the arranged multiple sets of blocking structures.

Description

Technical Field

[0001] The utility model relates to the field of aluminum foil bag devices, in particular to a high-barrier aluminum foil bag. Background Art

[0002] An aluminum foil bag is a bag made by combining multiple plastic films and then forming it through a bag-making machine. It is used to package food, medicine, industrial products, daily necessities, etc. An aluminum foil bag is also called a pure aluminum bag. Aluminum foil bag packaging usually refers to an aluminum-plastic composite vacuum packaging bag. Such products are suitable for moisture-proof, light-proof, and vacuum packaging of large precision mechanical equipment, chemical raw materials, and pharmaceutical intermediates. They mostly adopt a four-layer structure and have good water-proof and oxygen-proof functions. They are not restricted and can be customized in different specifications and styles of packaging bags. They can be made into various styles such as flat bags, three-dimensional bags, and accordion bags.

[0003] According to the Chinese patent with the application number 202022537764.8, a high-barrier aluminum foil bag is disclosed, which includes a bag body. The bag body is heat-sealed to form a three-sided sealed structure through a high-barrier film. The high-barrier film is composed of a PET layer, an aluminum foil, and a polyethylene film from the outside to the inside.

[0004] However, in the actual use process of the above solution, the air existing inside cannot be discharged in large quantities, resulting in the aluminum foil bag occupying space. If the internal storage is food, it will also cause the contact surface between the internal food and the air to be too large, increasing the probability of food spoilage, and there are certain deficiencies. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a high-barrier aluminum foil bag. Through the provided plugging structure, during the process of deflating the aluminum foil bag body, since it belongs to the process of air extraction, the air pressure in the bag is lower than the external air pressure. Therefore, the internal gas drives the cover plate to move outward, drives the fixed plate to move outward through the movable rod, and then compresses the spring. The gas in the bag body will flow out from the air holes. After the gas is discharged, the spring rebounds, and then drives the fixed plate - movable rod - cover plate to return to their positions. The cover plate plugs the air holes, and with the low air pressure inside, it can assist the cover plate to cover the outside of the fixed frame, achieving a plugging effect. The multiple groups of plugging structures provided can achieve the effect of quickly discharging gas.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: A high-barrier aluminum foil bag, including an aluminum foil bag body, an exhaust hole is provided on one side of the aluminum foil bag body, and an exhaust assembly is fixed outside the exhaust hole. The exhaust assembly includes a cover, a fixed frame, and a plugging structure. The fixed frame is a hollow structure without a cover at the front end, and a wind hole is provided in the middle of the fixed frame. An inner groove is provided at the back of each group of wind holes facing forward. A plugging structure is provided in the wind hole. The plugging structure includes a cover plate, a movable rod fixed to the inner side of the cover plate, a spring sleeved outside the movable rod, and a fixing plate fixed to one end of the spring. The other end of the spring is fixed in the inner groove.

[0007] As a preferred technical solution of the present utility model, a threaded structure is provided on the inner side wall of the fixed frame, and a threaded tooth structure meshing with the threaded structure is provided on the outer side of the bottom end of the cover.

[0008] As a preferred technical solution of the present utility model, the diameter of the cover plate is larger than the diameter of the wind hole, and the diameter of the fixing plate is the same as the diameter of the wind hole.

[0009] As a preferred technical solution of the present utility model, the length of the movable rod is greater than the thickness of the bottom side wall of the fixed frame.

[0010] As a preferred technical solution of the present utility model, the wind holes are evenly distributed in an array on the fixed frame.

[0011] As a preferred technical solution of the present utility model, the cover is a hollow cavity structure without a bottom surface at the bottom end.

[0012] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0013] In this device, through the provided plugging structure, during the process of deflating the inside of the aluminum foil bag body, since it is a process of air extraction, the air pressure in the bag is lower than the external air pressure. Therefore, the internal gas drives the cover plate to move outward, drives the fixing plate to move outward through the movable rod, and then compresses the spring. The gas in the bag body will flow out from the wind hole. After the gas is discharged, the spring rebounds, and then drives the fixing plate - movable rod - cover plate to return to their positions. The cover plate plugs the wind hole, and with the cooperation of the low air pressure inside, it can assist the cover plate to cover the outside of the fixed frame, achieving a plugging effect. The multiple sets of plugging structures provided can achieve the effect of quickly discharging gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a split structural diagram of the present utility model;

[0016] Figure 3 Structural exploded view of the exhaust component of the present utility model;

[0017] Figure 4 One of the structural schematic diagrams of the fixing frame and the plugging structure of the present utility model;

[0018] Figure 5 Another structural schematic diagram of the fixing frame and the plugging structure of the present utility model;

[0019] Figure 6 Structural exploded view of the plugging structure of the present utility model.

[0020] Wherein: 1. Aluminum foil bag body; 11. Exhaust hole; 2. Exhaust component; 21. Sealing cover; 22. Fixing frame; 23. Plugging structure; 231. Cover plate; 232. Movable rod; 233. Spring; 234. Fixed plate; 24. Air hole; 241. Inner groove. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following specific embodiments are used to further elaborate the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0022] Embodiment:

[0023] As Figure 1-6 shown, the present utility model provides a high-barrier aluminum foil bag, including an aluminum foil bag body 1, an exhaust hole 11 is opened on one side of the aluminum foil bag body 1, an exhaust component 2 is fixed outside the exhaust hole 11, the exhaust component 2 includes a sealing cover 21, a fixing frame 22 and a plugging structure 23, the fixing frame 22 is a hollow structure without a cover at the front end, and an air hole 24 is opened in the middle of the fixing frame 22, and an inner groove 241 is opened forward on the back of each group of air holes 24, a plugging structure 23 is arranged in the air hole 24, the plugging structure 23 includes a cover plate 231, a movable rod 232 fixed inside the cover plate 231, a spring 233 sleeved outside the movable rod 232 and a fixed plate 234 fixed at one end of the spring 233, and the other end of the spring 233 is fixed in the inner groove 241. (The movable rod 232 is arranged inside the cover plate 231, the spring 233 is fixed outside the fixed plate 234 and in the inner groove, and the middle of the spring 233 is sleeved outside the movable rod 232, and the sleeve does not mean that the outer walls of the spring 233 and the movable rod 232 are in contact, but only a guide sleeve is outside it)

[0024] In other embodiments, a threaded structure is provided on the inner side wall of the fixed frame 22, and a threaded tooth structure engaged with the threaded structure is provided on the outer side of the bottom end of the cover 21; the diameter of the cover plate 231 is larger than the diameter of the air hole 24, and the diameter of the fixing plate 234 is the same as the diameter of the air hole 24; the length of the movable rod 232 is greater than the thickness of the bottom side wall of the fixed frame 22; the air holes 24 are evenly distributed in an array on the fixed frame 22; the cover 21 is a hollow cavity structure without a bottom surface; by providing the plugging structure 23, during the process of deflating the aluminum foil bag body 1, since it belongs to the process of air extraction, the air pressure in the bag is lower than the external air pressure, so the internal gas drives the cover plate 231 to move outward, drives the fixing plate 234 to move outward through the movable rod 232, and then compresses the spring 233. The gas in the bag body will flow out from the air holes 24. After the gas is discharged, the spring 233 rebounds, and then drives the fixing plate 234 - movable rod 232 - cover plate 231 to return to their positions. The cover plate 231 plugs the air holes 24, and with the low air pressure inside, it can assist the cover plate 231 to cover the outside of the fixed frame 22 to achieve a plugging effect. And the multiple groups of plugging structures 23 provided can achieve the effect of quickly discharging gas.

[0025] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high barrier aluminum foil bag, comprising an aluminum foil bag body (1), characterized in that: An exhaust hole (11) is provided on one side of the aluminum foil bag body (1), an exhaust assembly (2) is fixed on the outside of the exhaust hole (11), the exhaust assembly (2) comprises a sealing cover (21), a fixing frame (22) and a blocking structure (23), the fixing frame (22) is a hollow structure without a cover at the front end, and an air hole (24) is provided in the middle of the fixing frame (22), and an inner groove (241) is provided on the back of each group of air holes (24) facing forward, the air holes (24) are provided in a manner similar to those of the air holes (24). A blocking structure (23) is arranged in the hole (24), wherein the blocking structure (23) comprises a cover plate (231), a movable rod (232) fixed to the inner side of the cover plate (231), a spring (233) sleeved on the outer side of the movable rod (232), and a fixed plate (234) fixed to one end of the spring (233); the other end of the spring (233) is fixed in the inner groove (241), and the other end of the movable rod (232) is fixedly connected to the fixed plate (234).

2. A high barrier aluminum foil bag according to claim 1, characterized in that: The inner side wall of the fixing frame (22) is provided with a thread structure, and the outer side of the bottom end of the sealing cover (21) is provided with a thread tooth structure meshing with the thread structure.

3. The high barrier aluminum foil bag according to claim 1, characterized in that: The diameter of the cover plate (231) is greater than the diameter of the air hole (24), and the diameter of the fixing plate (234) is the same as the diameter of the air hole (24).

4. The high barrier aluminum foil bag according to claim 1, characterized in that: The length of the movable rod (232) is greater than the thickness of the bottom side wall of the fixed frame (22).

5. The high barrier aluminum foil bag according to claim 1, characterized in that: The air holes (24) are distributed in an equidistant array on the fixed frame (22).

6. The high barrier aluminum foil bag according to claim 1, characterized in that: The sealing cover (21) is a hollow cavity structure with no surface at the bottom end.

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