A bulletproof, explosion-proof and heat-insulating box body cover and box body

Abstract

The application belongs to the technical field of box body cover manufacturing, and particularly relates to a bulletproof and explosion-proof heat-insulating box body cover and a box body, which comprises an aluminum skin, a bulletproof ceramic layer is fixedly bonded on a polyethylene fiber layer through epoxy glue, the polyethylene fiber layer is fixedly bonded with a polyurethane foam layer through epoxy glue, at least one side of the bulletproof ceramic layer away from the polyethylene fiber layer is wrapped with the aluminum skin, a plurality of honeycomb nets are arranged between the bulletproof ceramic layer and the aluminum skin, each mesh of the honeycomb net is filled with chopped bulletproof ceramic; a back convex is arranged on one side of the polyurethane foam layer away from the polyethylene fiber layer, so that the polyurethane foam layer (PU layer) is away from the outer surface of the box body by a certain gap, the gaps and the polyurethane foam layer together provide a certain space for the polyethylene fiber layer, so that the polyethylene fiber layer can play a role in energy absorption, and the problem that the ordinary bulletproof and explosion-proof structure cannot guarantee high-strength heat transfer at a large number of heat-insulating weak points of the box body when the ordinary bulletproof and explosion-proof structure is used as the cover of the box body is solved.

Description

Technical Field

[0001] This application belongs to the field of box-type covering manufacturing technology, specifically a bulletproof, explosion-proof, and heat-insulating box-type covering and box. Background Technology

[0002] The mechanical properties of the enclosure structure need to be carefully considered during the design phase, as well as the installation requirements of a large number of internal and external equipment. Therefore, its structure includes a large number of skeleton structures to enhance mechanical properties and embedded plate structures to ensure the stability of equipment installation. As a result, the thermal insulation performance of the enclosure is inevitably affected by the penetrating steel and aluminum materials. Even if a large amount of high-performance polyurethane foam (PU) is filled in the large panels of the enclosure, it is difficult to guarantee high-intensity heat transfer at the many weak points of insulation in the enclosure. Therefore, ordinary bulletproof and explosion-proof structures are not suitable as enclosure coverings, because ordinary bulletproof and explosion-proof structures cannot guarantee high-intensity heat transfer at the many weak points of insulation in the enclosure. Utility Model Content

[0003] The purpose of this application is mainly to address the shortcomings of existing technologies by setting a polyurethane foam layer (PU layer) on the side of the polyethylene fiber layer (PE layer) facing away from the bulletproof ceramic layer. The polyurethane foam layer has a back protrusion on the side facing away from the polyethylene fiber layer, so that there is still a certain gap between the polyurethane foam layer (PU layer) and the outer surface of the box. These gaps, together with the polyurethane foam layer, provide a certain space for the polyethylene fiber layer, enabling it to perform energy absorption. This solves the problem that ordinary bulletproof and explosion-proof structures cannot guarantee high-strength heat transfer at many weak points in the insulation of the box when used as a cover.

[0004] To achieve the above objectives, the technical solution adopted in this application is:

[0005] A bulletproof, explosion-proof, and heat-insulating enclosure includes an aluminum skin, a bulletproof ceramic layer, a polyethylene fiber layer, and a polyurethane foam layer. The bulletproof ceramic layer is fixedly bonded to the polyethylene fiber layer with epoxy adhesive. The polyurethane foam layer is fixedly bonded to the polyethylene fiber layer with epoxy adhesive. At least one side of the bulletproof ceramic layer facing away from the polyethylene fiber layer is wrapped with the aluminum skin. A plurality of honeycomb meshes are provided between the bulletproof ceramic layer and the aluminum skin. Each mesh of the honeycomb mesh is filled with shredded bulletproof ceramic. A back protrusion is provided on the side of the polyurethane foam layer facing away from the polyethylene fiber layer.

[0006] Preferably, the bulletproof ceramic layer is composed of several bulletproof ceramic layer block units spliced ​​together.

[0007] Preferably, the thickness of the cellular mesh is less than or equal to 1 mm.

[0008] Preferably, the mesh of the honeycomb network is a regular hexagonal structure.

[0009] Preferably, the aluminum skin covers the bulletproof ceramic layer, the polyethylene fiber layer, and the sidewalls of the polyurethane foam layer perpendicular to the polyethylene fiber layer.

[0010] A box body includes a box body, on the surface of which the aforementioned bulletproof, explosion-proof, and heat-insulating box body covering is provided, wherein a convex side of the bulletproof, explosion-proof, and heat-insulating box body covering faces the outer surface of the box body.

[0011] Compared with the prior art, this application has the following beneficial effects:

[0012] This application employs a polyurethane foam layer (PU layer) set on the side of the polyethylene fiber layer (PE layer) facing away from the bulletproof ceramic layer. The back protrusion on the side of the polyurethane foam layer facing away from the polyethylene fiber layer ensures that there is still a certain gap between the polyurethane foam layer (PU layer) and the outer surface of the enclosure. These gaps, together with the polyurethane foam layer, provide a certain space for the polyethylene fiber layer, enabling it to absorb energy. This solves the problem that ordinary bulletproof and explosion-proof structures cannot guarantee high-intensity heat transfer at many weak points in the insulation of the enclosure when used as a cover. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the box-shaped hanging structure in this application;

[0014] Figure 2 This is a schematic diagram of the polyurethane foam layer and the honeycomb network in this application;

[0015] Figure 3 This is a schematic diagram of the structure of the bulletproof ceramic layer formed by splicing bulletproof ceramic block units in this application;

[0016] Figure 4 This is a partial schematic diagram of the enclosure being mounted on the enclosure body in this application.

[0017] The components include: 1. Aluminum skin; 2. Bulletproof ceramic layer; 3. Polyethylene fiber layer; 4. Polyurethane foam layer; 5. Honeycomb mesh; 6. Back protrusion; 7. Box body. Detailed Implementation

[0018] like Figure 1-4As shown, a bulletproof, explosion-proof, and heat-insulating enclosure includes an aluminum skin 1, a bulletproof ceramic layer 2, a polyethylene fiber layer 3, and a polyurethane foam layer 4. The bulletproof ceramic layer 2 is fixedly bonded to the polyethylene fiber layer 3 with epoxy adhesive. The polyurethane foam layer 4 is fixedly bonded to the polyethylene fiber layer 3 with epoxy adhesive. At least one side of the bulletproof ceramic layer 2 facing away from the polyethylene fiber layer 3 is wrapped with the aluminum skin 1. A plurality of honeycomb meshes 5 are provided between the bulletproof ceramic layer 2 and the aluminum skin 1. Each mesh of the honeycomb mesh 5 is filled with chopped bulletproof ceramic. A back protrusion 6 is provided on the side of the polyurethane foam layer 4 facing away from the polyethylene fiber layer 3.

[0019] In this embodiment, the bulletproof ceramic layer 2 is primarily bulletproof. The polyethylene fiber layer 3 (PE layer) further enhances the bulletproof performance of the bulletproof ceramic layer 2, while also improving thermal insulation. A polyurethane foam layer 4 (PU layer) is added after the polyethylene fiber layer 3 (PE layer). A back protrusion 6 is provided on the side of the polyurethane foam layer facing away from the polyethylene fiber layer, ensuring a certain gap between the polyurethane foam layer (PU layer) and the outer surface of the enclosure. These gaps, together with the polyurethane foam layer, provide space for the polyethylene fiber layer, enabling it to absorb energy. This solves the problem that ordinary bulletproof and explosion-proof structures, when used as enclosure coverings, cannot guarantee high-intensity heat transfer at numerous weak points in the enclosure's insulation. Each mesh of the honeycomb mesh 5 is filled with shredded bulletproof ceramic, effectively resisting bullet penetration. The aluminum skin 1 is designed to prevent the bulletproof ceramic layer 2 from detaching. When a bullet reaches the bulletproof ceramic layer 2, the bullet head becomes blunt, fragmented, and flattened, causing the bulletproof ceramic layer 2 to partially pulverize. Subsequently, the bullet penetrates the bulletproof ceramic layer 2, further absorbing the bullet's kinetic energy. When a bullet reaches the polyurethane foam layer 4, high-strength fibers resist its penetration. When faced with an explosive shockwave, the aluminum skin 1 and the bulletproof ceramic layer 2 first absorb the shockwave. Then, the hard and brittle bulletproof ceramic layer 2 transfers the energy to the hexagonal honeycomb mesh 5, where the large deformation of the honeycomb mesh 5 absorbs the energy.

[0020] As a preferred embodiment, the bulletproof ceramic layer 2 is composed of several bulletproof ceramic layer blocks assembled together. This facilitates installation and assembly.

[0021] As a preferred embodiment, the thickness of the honeycomb mesh 5 is less than or equal to 1 mm. This is because previous experiments have shown that when the thickness of the honeycomb mesh 5 exceeds 1 mm, it is more likely that a bullet will hit the seam A between the constituent units of the bulletproof ceramic layer 2.

[0022] As a preferred embodiment, the cellular network 5 has a regular hexagonal mesh structure.

[0023] As a preferred embodiment, the aluminum skin 1 wraps around the sidewalls of the bulletproof ceramic layer 2, the polyethylene fiber layer 3, and the polyurethane foam layer 4 perpendicular to the polyethylene fiber layer 3. This arrangement allows the aluminum skin 1 to cover the bulletproof ceramic layer 2, the polyethylene fiber layer 3, and the polyurethane foam layer 4, while exposing the side of the polyurethane foam layer 4 facing away from the polyethylene fiber layer 3, thus facilitating installation on the housing body 1.

[0024] like Figure 4 As shown, a box enclosure includes a box body 7. A bulletproof, explosion-proof, and heat-insulating box cover is provided on the surface of the box body 7. The side of the bulletproof, explosion-proof, and heat-insulating box cover with a back protrusion 6 faces the outer surface of the box body 7. With this configuration, installing the box cover onto the outer wall of the box body 7 creates a complete insulation layer to enhance the box's resistance to extreme temperature environments. Simultaneously, the porous structure of the polyurethane foam layer 4 (PU layer) enhances the shock absorption and explosion-proof capabilities of the box cover, and slightly strengthens its energy absorption capacity.

[0025] Personnel exposed to extreme cold or heat inside the container body 7 (preferably a modular shelter) will be affected, and in severe cases, may face life-threatening situations. The equipment inside the container body 7 also typically requires suitable temperature and humidity to ensure optimal operation. Therefore, the container body 7 needs to maintain stable temperature and humidity within a comfortable range for humans under extreme cold and heat. Temperature stability refers not only to the average temperature within the container body 7 being within a comfortable range but also to minimal temperature differences between different areas within the container body 7. Installing a container cover on the outer wall of the container body 7 enhances its insulation performance, reduces the energy consumption required to maintain temperature stability, and reduces the power supply pressure on the generator, freeing up power for other high-energy-consuming equipment inside the container body 7.

Claims

1. A bulletproof, explosion-proof, and heat-insulating box-like covering, characterized in that, The device includes an aluminum skin (1), a bulletproof ceramic layer (2), a polyethylene fiber layer (3), and a polyurethane foam layer (4). The bulletproof ceramic layer (2) is fixedly bonded to the polyethylene fiber layer (3) with epoxy adhesive. The polyurethane foam layer (4) is fixedly bonded to the polyethylene fiber layer (3) with epoxy adhesive. At least one side of the bulletproof ceramic layer (2) facing away from the polyethylene fiber layer (3) is wrapped with the aluminum skin (1). Several honeycomb meshes (5) are provided between the bulletproof ceramic layer (2) and the aluminum skin (1). Each mesh of the honeycomb mesh (5) is filled with shredded bulletproof ceramic. The polyurethane foam layer (4) has a back protrusion (6) on the side facing away from the polyethylene fiber layer (3).

2. The bulletproof, explosion-proof, and heat-insulating box cover according to claim 1, characterized in that, The bulletproof ceramic layer (2) is composed of several bulletproof ceramic layer block units spliced ​​together.

3. The bulletproof, explosion-proof, and heat-insulating box cover according to claim 2, characterized in that, The thickness of the cellular mesh (5) is less than or equal to 1 mm.

4. The bulletproof, explosion-proof, and heat-insulating box cover according to claim 2, characterized in that, The cellular network (5) has a regular hexagonal mesh structure.

5. The bulletproof, explosion-proof, and heat-insulating box cover according to claim 1, characterized in that, The aluminum skin (1) wraps around the bulletproof ceramic layer (2), the polyethylene fiber layer (3), and the polyurethane foam layer (4) on the sidewalls perpendicular to the polyethylene fiber layer (3).

6. A box, characterized in that, Includes a box body (7), on the surface of the box body (7) is provided a bulletproof, explosion-proof and heat-insulating box cover as described in claim 5, and the side of the bulletproof, explosion-proof and heat-insulating box cover with a back protrusion (6) faces the outer surface of the box body (7).

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