Food packaging box with good sealing performance

Abstract

The utility model discloses a food packaging box with good sealing performance, and belongs to the technical field of food packaging boxes. The food packaging box with the good sealing performance comprises a sealing box, a sealing ring is fixedly connected to the upper end face of the sealing box, an overturning cover is hinged to the upper end face of the sealing ring, a separating mechanism for separating the inner space of the sealing box is arranged in the sealing box, and a vacuum groove is formed in the lower end face of the overturning cover. An air leakage preventing mechanism is arranged on the outer wall of the sealing box and the outer wall of the overturning cover, the upper end face of the overturning cover is fixedly connected with an air extracting pump used for vacuumizing the vacuum groove and the separating mechanism, an air extracting pipe is inserted into a connecting pipe of the sealing box, and after the air extracting pump is started, air in the adsorption sleeve is rapidly extracted. And when the exhaust pipe is pulled out after exhaust is completed, the fixed spring rebounds to drive the spherical block to block the blocking ring, and air leakage is effectively prevented. Similarly, after the vacuum groove in the overturning cover is subjected to air exhaust, the overturning cover and the sealing ring on the sealing box are tightly adsorbed, and the overall sealing performance is further enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of food packaging boxes, in particular to a food packaging box with good sealing performance. BACKGROUND

[0002] The food packaging box with good sealing performance is a container for packaging food, which is usually made of special materials and designed by special processes, can effectively block the invasion of external factors such as air, moisture, dust and odor, prevent the food from being damp, oxidized and deteriorated, prolong the shelf life of the food, maintain the flavor and quality of the food, and also avoid the pollution and damage of the food during transportation and storage.

[0003] The traditional food packaging box has great defects in the aspect of sealing performance, air is easy to enter the inside of the packaging box, which leads to oxidation and deterioration of the food, greatly shortens the preservation period of the food, and it is difficult to guarantee the taste and quality of the food. Meanwhile, the existing packaging box is not convenient enough in opening and closing operation, and the user often needs to exert great force to open it, which has great operation difficulty and seriously affects the use experience.

[0004] In view of this, the application provides a food packaging box with good sealing performance. CONTENT OF THE INVENTION

[0005] The application aims to provide a food packaging box with good sealing performance, which solves the technical problems in the background art.

[0006] The technical scheme of the application provides a food packaging box with good sealing performance, which comprises a sealing box, the upper end surface of the sealing box is fixedly connected with a sealing ring, the upper end surface of the sealing ring is hingedly connected with a turnover cover, the inside of the sealing box is provided with a separation mechanism for separating the inside space of the sealing box, the lower end surface of the turnover cover is provided with a vacuum groove, the outer walls of the sealing box and the turnover cover are provided with an air leakage prevention mechanism, the upper end surface of the turnover cover is fixedly connected with an air pump for vacuumizing the vacuum groove and the separation mechanism; the separation mechanism comprises an adsorption sleeve in the inside of the sealing box, the upper end surface of the adsorption sleeve is provided with a support plate, and the contact surface of the support plate and the adsorption sleeve is a smooth and flat surface; the air leakage prevention mechanism comprises a connecting pipe fixedly connected to the outer walls of the sealing box and the turnover cover, one side in the inside of the connecting pipe is fixedly connected with a blocking ring, and the inside of the connecting pipe is provided with a spherical block capable of blocking the blocking ring.

[0007] Optionally, one side of the outer walls of the sealing box and the turnover cover is provided with an extension hole, and the extension holes respectively extend into the inside of the vacuum groove and the adsorption sleeve, and the extension holes are in communication with the connecting pipe.

[0008] Optionally, the inside of the sealing box is fixedly connected with a support frame, the adsorption sleeve is fixedly connected to the upper end surface of the support frame, and the upper end surface of the support plate is fixedly connected with a placing frame.

[0009] Optionally, a grid plate is fixedly connected to the inside of the connecting pipe close to the sealing box, a fixed spring is fixedly connected to the end face of the grid plate close to the spherical block, and one end of the fixed spring is fixedly connected to the outer wall of the spherical block.

[0010] Optionally, an exhaust pipe is fixedly inserted into one end of the air suction pump, and an air suction pipe is fixedly inserted into the other end of the air suction pump.

[0011] Optionally, a fixed frame is fixedly connected to one side of the upper end face of the sealing ring, and the air suction pipe is located inside the fixed frame.

[0012] Optionally, a silicon rubber sealing ring in the shape of a U is fixedly connected to the lower end face of the turnover cover and the upper end face of the adsorption sleeve.

[0013] One or more technical solutions provided in the technical scheme of the present application have at least the following technical effects or advantages:

[0014] 1. In the present application, the air suction pipe is connected to the connecting pipe of the sealing box, and after the air suction pump is started, the suction force drives the spherical block to move, the spherical block is separated from the blocking ring, and the air in the adsorption sleeve is quickly sucked out. When the air suction pipe is pulled out after the air suction is completed, the fixed spring rebounds to drive the spherical block to block the blocking ring, effectively preventing air leakage. Similarly, after the vacuum groove on the turnover cover is subjected to air suction, the turnover cover is tightly adsorbed with the sealing ring on the sealing box, further enhancing the overall sealing performance. Air entering the packaging box is greatly reduced, effectively prolonging the preservation period of the food and ensuring the quality and taste of the food. When it is necessary to open the turnover cover or remove the support plate, the user directly pulls the protruding end of the spherical block to make the spherical block separate from the blocking ring, air enters to balance the internal air pressure, and the operation can be easily completed, reducing the operation difficulty of the user and improving the use experience.

[0015] 2. In the present application, the support plate is arranged in the sealing box, and the user can place different foods on the support plate to realize the separate storage of different foods. This facilitates the user to classify and manage the foods, avoids the cross-contamination and cross-odor between the foods, and also fully utilizes the space of the packaging box, improving the practicability of the packaging box. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The overall structure schematic view of the food packaging box with good sealing performance disclosed in the embodiments of the present application;

[0017] Fig. 2 The sectional view of the food packaging box with good sealing performance disclosed in the embodiments of the present application;

[0018] Fig. 3 The internal structure schematic view of the connecting pipe of the food packaging box with good sealing performance disclosed in the embodiments of the present application;

[0019] Explanation of reference numerals in the drawings: 1, sealed box; 2, sealing ring; 3, flip cover; 4, air pump; 5, exhaust pipe; 6, air suction pipe; 7, fixing frame; 8, connecting pipe; 9, vacuum groove; 10, support frame; 11, adsorption sleeve; 12, support plate; 13, placement frame; 14, grid plate; 15, fixing spring; 16, plug ring; 17, spherical block; 18, extension hole. DETAILED DESCRIPTION

[0020] The application will be further described in detail below with reference to the accompanying drawings.

[0021] Reference Figs. 1-3 The embodiment of the application provides a food packaging box with good sealing, which comprises a sealed box 1, the upper end surface of the sealed box 1 is fixedly connected with a sealing ring 2, the upper end surface of the sealing ring 2 is a smooth and flat surface, the upper end surface of the sealing ring 2 is hingedly connected with a flip cover 3, the inside of the sealed box 1 is provided with a separation mechanism for separating the inside space of the sealed box 1, the lower end surface of the flip cover 3 is provided with a vacuum groove 9, the outer walls of the sealed box 1 and the flip cover 3 are provided with an air leakage prevention mechanism, the upper end surface of the flip cover 3 is fixedly connected with an air pump 4 for vacuumizing the vacuum groove 9 and the separation mechanism, one end of the air pump 4 is fixedly connected with an exhaust pipe 5, the other end of the air pump 4 is fixedly connected with an air suction pipe 6; the separation mechanism comprises an adsorption sleeve 11 located in the sealed box 1, the upper end surface of the adsorption sleeve 11 is provided with a support plate 12, the contact surface between the support plate 12 and the adsorption sleeve 11 is a smooth and flat surface, the inside of the sealed box 1 is fixedly connected with a support frame 10, the adsorption sleeve 11 is fixedly connected to the upper end surface of the support frame 10, the upper end surface of the support plate 12 is fixedly connected with a placement frame 13, users can place different foods on the support plate 12, so that different foods can be stored separately. The food classification management of users is facilitated, the food odor mixing and cross contamination between foods are avoided, the space of the packaging box can be fully utilized, and the practicability of the packaging box is improved.

[0022] The air leakage mechanism comprises an outer wall connecting pipe 8 fixedly connected to the sealing box 1 and the turnover cover 3, an extension hole 18 is formed on one side of the outer wall of the sealing box 1 and the turnover cover 3, and the extension hole 18 extends into the vacuum groove 9 and the adsorption sleeve 11 respectively, the extension hole 18 is in communication with the connecting pipe 8, a blocking ring 16 is fixedly connected to one side of the inside of the connecting pipe 8, a spherical block 17 capable of blocking the blocking ring 16 is arranged in the inside of the connecting pipe 8, a grid plate 14 is fixedly connected to one side of the inside of the connecting pipe 8 close to the sealing box 1, a fixed spring 15 is fixedly connected to the end face of the grid plate 14 close to the spherical block 17, and one end of the fixed spring 15 is fixedly connected to the outer wall of the spherical block 17, after the air suction pump 4 is started, the air in the adsorption sleeve 11 is quickly sucked away. When the air suction pipe 6 is pulled out after the air suction is completed, the fixed spring 15 rebounds to drive the spherical block 17 to block the blocking ring 16, effectively preventing air leakage. Similarly, after the vacuum groove 9 on the turnover cover 3 is subjected to air suction, the turnover cover 3 is closely adsorbed with the sealing ring 2 on the sealing box 1, further enhancing the overall sealing performance. Air entering the packaging box is greatly reduced, effectively prolonging the preservation period of the food and ensuring the quality and taste of the food.

[0023] When it is necessary to open the turnover cover 3 or remove the supporting plate 12, the worker directly pulls the protruding end of the spherical block 17 to make the spherical block 17 separate from the blocking ring 16, air enters to balance the internal air pressure, and the operation can be easily completed, reducing the operation difficulty of the user and improving the use experience.

[0024] One side of the upper end face of the sealing ring 2 is fixedly connected with a fixed frame 7, and the air suction pipe 6 is located in the inside of the fixed frame 7, playing a role of fixing and limiting the air suction pipe 6. The lower end face of the turnover cover 3 and the upper end face of the adsorption sleeve 11 are fixedly connected with a silicon sealing ring in a meander shape, playing a good sealing role and preventing air leakage at the bonding position.

[0025] Working principle: the user can put food into the inside of the sealing box 1, and then place the supporting plate 12 on the adsorption sleeve 11 in the inside of the sealing box 1, the smooth surface below the supporting plate 12 covers the silicon sealing ring on the adsorption sleeve 11, the user places different food on the supporting plate 12, thereby separating different food, covers the turnover cover 3, and the vacuum groove 9 on the turnover cover 3 and the silicon sealing ring below the turnover cover 3 are bonded with the sealing ring 2 on the sealing box 1.

[0026] The user takes the suction pipe 6 off the fixing frame 7, one end of the suction pipe 6 is sleeved on the connecting pipe 8 on the sealing box 1, the suction pump 4 is started, the suction pump 4 works, under the suction force of the suction pipe 6, the spherical block 17 inside the connecting pipe 8 is pulled by the suction force, the fixing spring 15 is expanded, the spherical block 17 is separated from the blocking ring 16, a gap is generated between the spherical block 17 and the blocking ring 16, the air inside the adsorption sleeve 11 is sucked away by the suction pipe 6, the air inside the adsorption sleeve 11 passes through the grid plate 14 and the blocking ring 16 inside the connecting pipe 8 and enters the suction pipe 6, and finally the exhaust pipe 5 exhausts. When the air inside the adsorption sleeve 11 is sucked away, the adsorption sleeve 11 is tightly adsorbed with the support plate 12, so that a good sealing effect is achieved. The suction pipe 6 is pulled out, the fixing spring 15 rebounds to drive the spherical block 17 to move, so that the spherical block 17 blocks the blocking ring 16 to prevent air leakage.

[0027] After the suction of the adsorption sleeve 11 is completed, the above operation is repeated, the suction pipe 6 is sleeved on the connecting pipe 8 on the turnover cover 3, the air inside the vacuum groove 9 is sucked away, so that the turnover cover 3 is precisely adsorbed with the sealing ring 2. When the turnover cover 3 needs to be opened or the support plate 12 needs to be removed later, the worker directly pulls the protruding end of the spherical block 17, so that the spherical block 17 is separated from the blocking ring 16, a gap is generated between the spherical block 17 and the blocking ring 16, the air passes through the blocking ring 16 and the grid plate 14 and enters the vacuum groove 9 and the adsorption sleeve 11, so that the air pressure inside the vacuum groove 9 and the adsorption sleeve 11 reaches balance, and the worker can easily open the turnover cover 3 and remove the support plate 12.

[0028] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A food packaging box with good sealing performance, comprising a sealed box (1), characterized in that: A sealing ring (2) is fixedly connected to the upper end face of the sealing box (1), and a flip cover (3) is hinged to the upper end face of the sealing ring (2). The interior of the sealing box (1) is provided with a separation mechanism that divides the interior space of the sealing box (1). A vacuum groove (9) is opened on the lower end face of the flip cover (3). The outer walls of the sealing box (1) and the flip cover (3) are provided with a leak-proof mechanism. A vacuum pump (4) for evacuating the vacuum groove (9) and the separation mechanism is fixedly connected to the upper end face of the flip cover (3). The separation mechanism includes an adsorption sleeve (11) located inside the sealed box (1). The upper end face of the adsorption sleeve (11) is provided with a support plate (12), and the contact surface between the support plate (12) and the adsorption sleeve (11) is a smooth and flat surface. The air leakage mechanism includes an outer wall connecting pipe (8) fixedly connected to the sealing box (1) and the flip cover (3). A plugging ring (16) is fixedly connected to one side inside the connecting pipe (8). A spherical block (17) that can block the plugging ring (16) is provided inside the connecting pipe (8).

2. The food packaging box with good sealing performance according to claim 1, characterized in that: The sealing box (1) and the flip cover (3) are provided with an extension hole (18) on one side of their outer walls. The extension hole (18) extends into the vacuum tank (9) and the adsorption sleeve (11) respectively. The extension hole (18) is connected to the connecting pipe (8).

3. The food packaging box with good sealing performance according to claim 1, characterized in that: The sealing box (1) is fixedly connected to a support frame (10), and the adsorption sleeve (11) is fixedly connected to the upper end face of the support frame (10). The upper end face of the support plate (12) is fixedly connected to a placement frame (13).

4. The food packaging box with good sealing performance according to claim 1, characterized in that: A grid plate (14) is fixedly connected to the inside of the connecting pipe (8) near the sealing box (1). A fixing spring (15) is fixedly connected to the end face of the grid plate (14) near the spherical block (17), and one end of the fixing spring (15) is fixedly connected to the outer wall of the spherical block (17).

5. The food packaging box with good sealing performance according to claim 1, characterized in that: One end of the air pump (4) is fixedly connected to an exhaust pipe (5), and the other end of the air pump (4) is fixedly connected to an air extraction pipe (6).

6. The food packaging box with good sealing performance according to claim 5, characterized in that: A fixing frame (7) is fixedly connected to one side of the upper end face of the sealing ring (2), and the air extraction pipe (6) is located inside the fixing frame (7).

7. The food packaging box with good sealing performance according to claim 1, characterized in that: The lower end face of the flip cover (3) and the upper end face of the adsorption sleeve (11) are both fixedly connected with a silicone sealing ring in the shape of a U-shape.

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