Bulletproof guard plate and body armor

Abstract

The bulletproof protection plate comprises a composite ceramic plate layer and a back plate bonded to the lower portion of the composite ceramic plate layer, the composite ceramic plate layer comprises an upper layer ceramic plate, a middle layer ceramic plate and a lower layer ceramic plate which are bonded with one another, and the middle layer ceramic plate comprises multiple layers of ceramic column modules bonded through resin; the ceramic column module comprises a plurality of ceramic column assemblies which are bonded with one another, and each ceramic column assembly comprises two ceramic column single bodies arranged at intervals and a fiber connecting piece wrapping the side faces of the two ceramic column single bodies and connecting the two ceramic column single bodies together. The ceramic column single bodies are tightly arranged, and the fiber connecting pieces wrap part of the side face of one ceramic column single body of at least one adjacent ceramic column assembly so that one fiber connecting piece can tightly press part of the side face of one ceramic column single body of at least one ceramic column assembly. The middle-layer ceramic plate improves the shear strength of the broken ceramic and the inertial effect of the ceramic panel, and improves the anti-penetration performance of the ceramic.

Description

Technical Field

[0001] The invention belongs to the field of bulletproof vests, and in particular relates to a bulletproof guard plate and a bulletproof vest. Background Art

[0002] The bulletproof vest includes a cover and a bulletproof plate. The bulletproof plate is placed in the cover to protect the human body from bullets or shrapnel. Existing bulletproof plates often use rigid metal plates, but such bulletproof plates have little restraining effect on bullets or shrapnel, and the bulletproof vest plate has poor penetration resistance. Therefore, it is urgent to study a bulletproof plate with good penetration resistance to improve the performance of the bulletproof vest. Summary of the invention

[0003] The present application provides a bulletproof guard plate and a bulletproof vest.

[0004] In a first aspect, an embodiment of the present application provides a bulletproof shield, which includes a composite ceramic plate layer and a back plate bonded under the composite ceramic plate layer, wherein the material of the back plate is a fiber composite material; the composite ceramic plate layer includes an upper ceramic plate, a middle ceramic plate, and a lower ceramic plate bonded to each other, the middle ceramic plate includes a plurality of ceramic column modules connected together by resin, the ceramic column module includes a plurality of ceramic column assemblies bonded to each other, each of the ceramic column assemblies includes two ceramic column monomers arranged at intervals and a fiber connector that wraps the sides of the two ceramic column monomers and connects the two ceramic column monomers together, the ceramic column monomers are closely arranged and the fiber connector wraps a portion of the side of a ceramic column monomer of at least one adjacent ceramic column assembly, so that a fiber connector presses a portion of the side of a ceramic column monomer of at least one ceramic column assembly;

[0005] The two ceramic column monomers are placed into the two ends of the fiber composite material sleeve, and then the fiber composite material sleeve is preformed to form the ceramic column assembly, so that the middle parts of the fiber composite material sleeve are bonded together to form the fiber connecting part for connecting the two ceramic column monomers, and the two ends of the fiber composite material sleeve are respectively closed and wrapped around the side of one ceramic column monomer.

[0006] Optionally, the upper ceramic plate is formed by first ceramic block sheets spliced ​​together by resin, and the lower ceramic plate is formed by second ceramic block sheets spliced ​​together by resin, and the sizes of the first ceramic sheet, the second ceramic sheet, and the ceramic column module in their respective ceramic plates are different.

[0007] Optionally, the ceramic column monomer includes a ceramic column and fibers wound around the ceramic column, and the fibers are fixed on the side of the ceramic column by resin.

[0008] Optionally, the ceramic column modules in the middle ceramic plate are bonded by a dipping process.

[0009] Optionally, the ceramic column monomers in each of the ceramic column modules have multiple rows, the ceramic column monomers in each row extend along the first direction, and each of the ceramic column monomers is connected to its adjacent ceramic column monomers.

[0010] Optionally, the ceramic column monomer is a cylinder, and each of the ceramic column monomers can be tangent to six of the ceramic column monomers; or, the ceramic column monomer is a hexagonal prism, and each of the ceramic column monomers is connected to its adjacent ceramic column monomers.

[0011] Optionally, the ceramic column monomer also extends along a second direction and the ceramic column assembly is arranged along the second direction, the angle between the first direction and the second direction is 60°, and at least one side of the fiber connector of a ceramic column assembly abuts against a partial side of a ceramic column monomer.

[0012] Optionally, the ceramic column assemblies are further arranged along a third direction, the first direction is perpendicular to the third direction, and only one side of the fiber connector of one ceramic column assembly abuts against a partial side of a ceramic column monomer.

[0013] Optionally, two side surfaces of the fiber connector of one of the ceramic column assemblies are respectively in contact with a partial side surface of a ceramic column unit.

[0014] In a second aspect, an embodiment of the present application provides a bulletproof vest, which includes a garment cover and a plurality of bulletproof shields according to any one of the embodiments of the present application, wherein the garment cover has a plurality of accommodating pockets, and the plurality of bulletproof shields are loaded into the accommodating pockets.

[0015] Beneficial effects of this application:

[0016] The bulletproof vest insert plate of the present application is composited by three layers of ceramic plates and a fiber composite material back plate, wherein the middle layer of ceramic plates improves the shear strength of the broken ceramics and the inertia effect of the ceramic panel, thereby increasing the anti-penetration performance of the ceramics.

[0017] The upper ceramic plate is used to prevent the projectile from invading the gap of the middle ceramic plate and reducing the protective performance of the bulletproof vest insert plate; the middle ceramic plate improves the shear strength of the broken ceramics through fiber constraint, and improves the inertia effect of the ceramics through the interconnection of ceramic blocks, thereby improving the anti-penetration performance of the broken ceramics; the lower ceramic plate is used to increase the contact area between the middle ceramic column and the fiber composite material back plate, reducing the local invasion effect; the fiber composite material back plate is mainly used to support the front ceramic plate, and at the same time plays a certain protective role against low-speed ceramic fragments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a ceramic column unit according to an embodiment of the present application;

[0019] Figure 2 This is a schematic structural diagram of a fiber composite material sleeve according to an embodiment of the present application;

[0020] Figure 3 This is a schematic structural diagram of a ceramic column unit according to an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the structure of a middle-layer ceramic plate according to an embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of the structure of another middle-layer ceramic plate according to an embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of the structure of another middle-layer ceramic plate according to an embodiment of the present application;

[0024] Figure 7 This is a schematic diagram of the structure of another middle-layer ceramic plate according to an embodiment of the present application;

[0025] Figure 8 This is a schematic structural diagram of a bulletproof shield according to an embodiment of the present application.

[0026] Among them, the figures are marked as: 1. ceramic column; 2. fiber; 3. fiber composite material sleeve; 4. fiber connector; 5. ceramic column monomer; 6. upper ceramic plate; 7. middle ceramic plate; 8. lower ceramic plate; 9. back plate. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] It should be understood that the specific embodiments and drawings described herein are only used to explain the present invention rather than to limit the present invention.

[0029] It can be understood that, in the absence of conflict, the various embodiments of the present invention and the various features therein can be combined with each other.

[0030] It can be understood that, for the convenience of description, the drawings of the present invention only show the parts related to the embodiments of the present invention, while the parts unrelated to the embodiments of the present invention are not shown in the drawings.

[0031] First, refer to Figures 1 to 8, an embodiment of the present application provides a bulletproof shield, which includes a composite ceramic plate layer and a back plate bonded under the composite ceramic plate layer, the material of the back plate is a fiber composite material; the composite ceramic plate layer includes an upper ceramic plate 6, a middle ceramic plate 7, and a lower ceramic plate 8 bonded to each other, the middle ceramic plate 7 includes a plurality of ceramic column modules connected together by resin, the ceramic column module includes a plurality of ceramic column assemblies 5 bonded to each other, each ceramic column assembly includes two ceramic column monomers 5 arranged at intervals and a fiber connector 4 wrapping the sides of the two ceramic column monomers 5 and connecting the two ceramic column monomers 5 together, the ceramic column monomers 5 are closely arranged and the fiber connector 4 wraps a partial side surface of a ceramic column monomer 5 of at least one adjacent ceramic column assembly, so that a fiber connector 4 presses a partial side surface of a ceramic column monomer 5 of at least one ceramic column assembly;

[0032] Two ceramic column monomers 5 are placed into the two ends of the fiber composite material sleeve 3, and then the fiber composite material sleeve 3 is preformed to form a ceramic column assembly, so that the middle parts of the fiber composite material sleeve 3 are bonded together to form a fiber connector 4 for connecting the two ceramic column monomers 5, and the two ends of the fiber composite material sleeve 3 are respectively closed and wrapped around the side of a ceramic column monomer 5.

[0033] Among them, high-performance fiber refers to high-strength, high-modulus fiber, such as carbon fiber, PBO fiber, ultra-high molecular weight polyethylene fiber (UHMWPE), etc. The above scheme mainly adopts low-density, good impact resistance bonding resin, such as ultra-high molecular weight polyethylene resin, polyurea resin, polyamide resin, etc. The fiber composite sleeve 3 is made of high-performance fiber, and its tensile strength and failure strain are much greater than ceramic materials. The upper ceramic plate 6 is used to prevent the projectile from invading the gap of the middle ceramic plate and reducing the protective performance of the bulletproof vest plug plate; the middle ceramic plate 7 improves the shear strength of the broken ceramic through fiber constraint, and improves the inertia effect of the ceramic through the interconnection of ceramic blocks, thereby improving the anti-penetration performance of the broken ceramic; the lower ceramic plate 8 is used to increase the contact area between the middle ceramic column and the fiber composite back plate, reducing the local invasion effect; the fiber composite back plate is mainly used to support the front ceramic plate, and at the same time plays a certain protective role against low-speed ceramic fragments.

[0034] Optionally, the upper ceramic plate 6 is formed by splicing block-shaped first ceramic sheets through resin, and the lower ceramic plate 8 is formed by splicing block-shaped second ceramic sheets through resin, and the sizes of the first ceramic sheet, the second ceramic sheet, and the ceramic column module in their respective ceramic plates are different. There is no obvious gap between the ceramic sheets or ceramic column modules of the same layer, and the sizes of the first ceramic sheet, the second ceramic sheet, and the ceramic column module in their respective ceramic plates are different to prevent the overlap of gaps and reduce the anti-penetration ability of the target plate. The resin used can be polyurea, polyamide, etc.

[0035] Optionally, the ceramic column monomer 5 includes a ceramic column 1 and a fiber 2 wound on the ceramic column 1, and the fiber 2 is fixed to the side of the ceramic column 1 by resin. The high-performance fiber 2 is wound on the surface of the ceramic column 1, and the fiber is fixed by resin to form a radially constrained ceramic column monomer 5 to prevent the fiber from being loosely wound.

[0036] Optionally, the ceramic column modules in the middle ceramic plate 7 are bonded by a dipping process. The dipping process can firmly bond the ceramic column components together.

[0037] Optionally, the ceramic column monomers 5 in each ceramic column module have multiple rows, each row of ceramic column monomers 5 extends along the first direction, and each ceramic column monomer 5 is connected to its adjacent ceramic column monomer 5. The ceramic column monomers are arranged in the above manner and connected by resin glue to improve the anti-penetration performance of the middle ceramic plate.

[0038] Optionally, the ceramic column monomer 5 is a cylinder, and each ceramic column monomer 5 can be tangent to six ceramic column monomers 5; or, the ceramic column monomer 5 is a hexagonal prism, and each ceramic column monomer 5 is connected to its adjacent ceramic column monomer 5. The ceramic column monomer adopts a hexagonal prism or cylindrical structure, which can reduce the gap between the ceramic column monomers and improve the anti-penetration performance of the middle ceramic plate.

[0039] Optionally, the ceramic column monomer 5 also extends along the second direction and the ceramic column assembly is arranged along the second direction, the angle between the first direction and the second direction is 60°, and at least one side of the fiber connector 4 of a ceramic column assembly abuts against a partial side of a ceramic column monomer 5.

[0040] Optionally, the ceramic column components are also arranged along a third direction, the first direction is perpendicular to the second direction, and only one side of the fiber connector 4 of a ceramic column component abuts against a partial side of a ceramic column monomer 5 .

[0041] Optionally, two side surfaces of the fiber connector 4 of a ceramic column assembly are respectively in contact with a partial side surface of a ceramic column monomer 5 .

[0042] The ceramic components are arranged in the above three ways, and the ceramic column components are arranged in sequence along the direction of the arrows in the figure as needed to increase the length of the ceramic column module. The fiber connector 4 can improve the shear strength of the broken ceramics and improve the inertia effect of the ceramics by interconnecting the ceramic blocks, thereby improving the anti-penetration performance of the broken ceramics. In the second aspect, an embodiment of the present application provides a bulletproof vest, which includes a cover and a plurality of bulletproof shields of any one of the embodiments of the present application, the cover having a plurality of accommodating bags, and the plurality of bulletproof shields are loaded into the accommodating bags.

[0043] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A bulletproof shield, characterized in that: It comprises a composite ceramic plate layer and a back plate bonded under the composite ceramic plate layer, wherein the back plate is made of a fiber composite material; the composite ceramic plate layer comprises an upper ceramic plate, a middle ceramic plate, and a lower ceramic plate bonded to each other, wherein the middle ceramic plate comprises a plurality of ceramic column modules bonded together by resin, wherein the ceramic column modules comprise a plurality of ceramic column assemblies bonded to each other, wherein each of the ceramic column assemblies comprises two ceramic column monomers arranged at intervals and a fiber connector wrapping the sides of the two ceramic column monomers and connecting the two ceramic column monomers together, wherein the ceramic column monomers are closely arranged and the fiber connector wraps a portion of the side of a ceramic column monomer of at least one adjacent ceramic column assembly, so that a fiber connector presses a portion of the side of a ceramic column monomer of at least one ceramic column assembly; The two ceramic column monomers are placed into the two ends of the fiber composite material sleeve, and then the fiber composite material sleeve is preformed to form the ceramic column assembly, so that the middle parts of the fiber composite material sleeve are bonded together to form the fiber connecting part for connecting the two ceramic column monomers, and the two ends of the fiber composite material sleeve are respectively closed and wrapped around the side of one ceramic column monomer.

2. The bulletproof shield according to claim 1, characterized in that: The upper ceramic plate is formed by first ceramic blocks being spliced ​​together by resin, and the lower ceramic plate is formed by second ceramic blocks being spliced ​​together by resin. The first ceramic plate, the second ceramic plate, and the ceramic column module have different sizes in their respective ceramic plates.

3. The bulletproof shield according to claim 1, characterized in that: The ceramic column monomer includes a ceramic column and fibers wound around the ceramic column, and the fibers are fixed on the side of the ceramic column by resin.

4. The bulletproof shield according to claim 1, characterized in that: The ceramic column modules in the middle ceramic plate are bonded by a dipping process.

5. The bulletproof shield according to claim 1, characterized in that: The ceramic column monomers in each of the ceramic column modules have multiple rows, the ceramic column monomers in each row extend along a first direction, and each of the ceramic column monomers is connected to its adjacent ceramic column monomers.

6. The bulletproof shield according to claim 5, characterized in that: The ceramic column monomer is a cylinder, and each of the ceramic column monomers can be tangent to six of the ceramic column monomers; Alternatively, the ceramic column monomers are hexagonal columns, and each of the ceramic column monomers is connected to its adjacent ceramic column monomers.

7. The bulletproof shield according to claim 5, characterized in that: The ceramic column monomer also extends along the second direction and the ceramic column assembly is arranged along the second direction, the angle between the first direction and the second direction is 60°, and at least one side of the fiber connector of a ceramic column assembly abuts against a partial side of a ceramic column monomer.

8. The bulletproof shield according to claim 5, characterized in that: The ceramic column components are also arranged along a third direction, the first direction is perpendicular to the third direction, and the fiber connector of one ceramic column component abuts against a partial side surface of a ceramic column monomer on only one side surface.

9. The bulletproof shield according to claim 5, characterized in that: The two side surfaces of the fiber connector of one of the ceramic column components are respectively in contact with a partial side surface of a ceramic column unit.

10. A bulletproof vest, characterized in that: The bulletproof vest comprises a cover and a plurality of bulletproof shields according to any one of claims 1 to 9, wherein the cover has a plurality of accommodating pockets, and the plurality of bulletproof shields are loaded into the accommodating pockets.

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