Waterproof and oil-proof food packaging box protective layer condensation structure with good heat sealability

Abstract

The utility model discloses a food packing box protective layer condensation structure with good waterproof and oil-proof heat sealability, which comprises a packing box body, handles and heat-seal bonding strips, the packing box body is in a frustum type design, the handles are bonded on two sides of the packing box body, the heat-seal bonding strips are bonded on two sides of the upper part in the packing box body, and the heat-seal bonding strips are bonded on two sides of the upper part in the packing box body. The packaging box body comprises a protection layer, a packaging box shell, an inner protection layer and a food protection film, the packaging box shell is arranged behind the protection layer, the inner protection layer adheres to the inner side of the packaging box shell, the food protection film adheres to the inner side of the inner protection layer, an integrally-formed supporting strip is arranged at the bottom of the protection layer, and the packaging box shell and the food protection film are integrally formed. A plurality of first protruding blocks which are integrally formed are arranged on the packaging box shell. The device is reasonable in design; the first protruding blocks between the protection layer and the packaging box shell improve air circulation, and therefore the heat dissipation capacity is improved.

Description

Technical Field

[0001] The utility model relates to a protective layer condensation structure of a food packaging box with good waterproof, oil-proof and heat-sealing properties. Background Art

[0002] In order to facilitate the transportation and storage of food, food is often placed in a packaging box, and the packaging box is heat-sealed to improve the sealing performance. The existing food packaging box protective layer is directly bonded to the packaging box, which has a poor heat dissipation effect and is prone to damage to the protective layer and packaging box by collision in the later stage. Utility Model Content

[0003] The utility model aims to provide a food packaging box protective layer condensation structure with good waterproof, oil-proof and heat-sealing properties, so as to solve the above technical problems.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A condensation structure of a protective layer of a food packaging box with good waterproof, oil-proof and heat-sealing properties, comprising a packaging box body, a handle and a heat-sealing adhesive strip. The packaging box body is of a conical design, with handles bonded on both sides of the packaging box body, and heat-sealing adhesive strips bonded on both sides of the upper interior of the packaging box body. The heat-sealing adhesive strips can be sealed by a heat sealing machine. The packaging box body comprises a protective layer, a packaging box shell, an inner protective layer and a food protective film. A packaging box shell is provided behind the protective layer, the inner protective layer is bonded to the inner side of the packaging box shell, and the food protective film is bonded to the inner side of the inner protective layer. An integrally formed support strip is provided at the bottom of the protective layer, and a plurality of integrally formed first protrusions are provided on the packaging box shell.

[0006] Preferably, the packaging box shell is of a conical design, with a gap provided between the packaging box shell and the protective layer, a first protrusion installed in the gap, a second protrusion slidably connected to the first protrusion, a slide groove for installing the second protrusion is provided on the first protrusion, the second protrusion is in contact with the protective layer, the protective layer is not provided at the bottom of the packaging box shell, and the first protrusion and the second protrusion are designed to be staggered up and down.

[0007] Preferably, the protective layer is made of waterproof and oil-proof PVC material.

[0008] Preferably, the first protrusion is designed in an inverted L shape, a first elastic sheet and a second elastic sheet are installed in the first protrusion, and the second protrusion can contact the first elastic sheet and the second elastic sheet when moving inward.

[0009] Preferably, the food protection film is made of polypropylene material.

[0010] Compared with the prior art, the utility model has the following advantages: the utility model has a reasonable design; the design of the heat-sealing adhesive strip is easy to seal and can be quickly replaced later; a first protrusion and a second protrusion are provided between the protective layer and the packaging box shell to increase the gap between the protective layer and the packaging box shell to facilitate air circulation, thereby improving heat dissipation and accelerating condensation effect; when impacted, the second protrusion can move along the first protrusion together with the protective layer to buffer the impact force and protect the packaging box body; the first elastic sheet and the second elastic sheet can block the second protrusion, and at the same time, after the first elastic sheet and the second elastic sheet are restored later, the second protrusion can move to a normal position; the inner protective layer and the food protection film can better protect the food. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the condensation structure of the protective layer of the food packaging box with good waterproof, oil-proof and heat-sealing properties according to the utility model.

[0012] Figure 2 It is a partial exploded schematic diagram of the condensation structure of the protective layer of the food packaging box with good waterproof, oil-proof and heat-sealing properties according to the utility model.

[0013] Figure 3 It is a schematic diagram of the first protrusion and the second protrusion of the condensation structure of the protective layer of the food packaging box with good waterproof, oil-proof and heat-sealing properties of the utility model. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-3As shown, a protective layer condensation structure of a food packaging box with good waterproof, oil-proof and heat-sealing properties comprises a packaging box body 1, a handle 2 and a heat-sealing adhesive strip 3. The packaging box body 1 is of a frustum-shaped design. The handles 2 are bonded to both sides of the packaging box body 1. The heat-sealing adhesive strips 3 are bonded to both sides of the upper inside of the packaging box body 1. The heat-sealing adhesive strips 3 can be sealed by a heat sealing machine. The packaging box body 1 comprises a protective layer 4, a packaging box shell 5, an inner protective layer 6 and a food protective film 7. A packaging box shell 5 is provided behind the protective layer 4. The inner protective layer 6 is bonded to the inner side of the packaging box shell 5. The food protective film 7 is bonded to the inner side of the inner protective layer 6. An integrally formed support strip 10 is provided at the bottom of the protective layer 4. The packaging box shell 5 is provided with a plurality of integrally formed second A protrusion 8, the packaging box shell 5 is designed in a frustum shape, a gap is provided between the packaging box shell 5 and the protective layer 4, a first protrusion 8 is installed in the gap, a second protrusion 9 is provided on the first protrusion 8 for sliding connection, a slide groove for installing the second protrusion 9 is opened on the first protrusion 8, the second protrusion 9 is in contact with the protective layer 4, the protective layer 4 is not arranged at the bottom of the packaging box shell 5, the first protrusion 8 and the second protrusion 9 are designed to be staggered up and down, the protective layer 4 is made of waterproof and oil-proof PVC material, the first protrusion 8 is designed in an inverted L shape, a first elastic sheet 11 and a second elastic sheet 12 are installed in the first protrusion 8, and the second protrusion 9 can contact with the first elastic sheet 11 and the second elastic sheet 12 when moving inward, and the food protection film 7 is made of polypropylene material.

[0016] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A food packaging box protective layer condensation structure with good waterproof, oil-proof and heat-sealing properties, comprising a packaging box body (1), a handle (2), and a heat-sealing adhesive strip (3), characterized in that: The packaging box body (1) is of a cone-shaped design. Handles (2) are bonded to both sides of the packaging box body (1). Heat-sealing adhesive strips (3) are bonded to both sides of the upper part of the packaging box body (1). The heat-sealing adhesive strips (3) can be sealed by a heat sealing machine. The packaging box body (1) comprises a protective layer (4), a packaging box shell (5), an inner protective layer (6), and a food protective film (7). A packaging box shell (5) is provided behind the protective layer (4). The inner side of the packaging box shell (5) is bonded to the inner side of the packaging box shell (5). The inner side of the inner protective layer (6) is bonded to the inner side of the food protective film (7). An integrally formed support strip (10) is provided at the bottom of the protective layer (4). A plurality of integrally formed first protrusions (8) are provided on the packaging box shell (5).

2. The protective layer condensation structure of a food packaging box with good waterproof, oil-proof and heat-sealability according to claim 1, characterized in that: The packaging box shell (5) is of a cone-shaped design, a gap is provided between the packaging box shell (5) and the protective layer (4), a first protrusion (8) is installed in the gap, a second protrusion (9) is provided on the first protrusion (8) for sliding connection, a sliding groove for installing the second protrusion (9) is provided on the first protrusion (8), the second protrusion (9) is in contact with the protective layer (4), the protective layer (4) is not provided at the bottom of the packaging box shell (5), and the first protrusion (8) and the second protrusion (9) are designed to be staggered in upper and lower positions.

3. The protective layer condensation structure of a food packaging box with good waterproof, oil-proof and heat-sealability according to claim 1, characterized in that: The protective layer (4) is made of waterproof and oil-proof PVC material.

4. The protective layer condensation structure of a food packaging box with good waterproof, oil-proof and heat-sealability according to claim 2, characterized in that: The first protrusion (8) is designed to be in an inverted L-shape, a first elastic sheet (11) and a second elastic sheet (12) are installed in the first protrusion (8), and the second protrusion (9) can contact the first elastic sheet (11) and the second elastic sheet (12) when moving inwards.

5. The protective layer condensation structure of a food packaging box with good waterproof, oil-proof and heat-sealability according to claim 1, characterized in that: The food protection film (7) is made of polypropylene material.

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