Bulletproof guard plate and body armor

Abstract

The invention relates to a bulletproof protection plate and a bulletproof vest, the bulletproof protection plate comprises a ceramic composite plate and a back plate bonded on the ceramic composite plate, the back plate is made of a fiber composite material, the ceramic composite plate comprises at least one layer of ceramic plate, and the ceramic plate is formed by bonding a plurality of ceramic blocks; each ceramic block comprises a plurality of ceramic pieces stacked in the first direction, the ceramic pieces are bonded through resin glue, each ceramic piece is provided with at least one through hole, at least one end of each through hole is provided with a flaring, the flaring of every two adjacent ceramic pieces forms a containing space, and the containing space is used for containing the ceramic pieces. A plurality of ceramic pieces are arranged in the containing space, ceramic balls are placed in the containing space, a rope sequentially penetrates through the through holes in the ceramic pieces, the part, located in the containing space, of the rope wraps the ceramic balls, and the rope is made of high-strength fibers. By the adoption of the technical scheme, the shearing strength of the broken ceramic is improved, and then the penetration resistance of the body armor is improved.

Description

Technical Field

[0001] This application belongs to the field of bulletproof vests, and particularly relates to a bulletproof plate and a bulletproof vest. Background Art

[0002] A bulletproof vest includes a jacket and a bulletproof plate. The bulletproof plate is placed in the jacket to protect the human body from the harm of bullets or shrapnel. The existing bulletproof plates are mainly composed of a ceramic panel and a fiber composite material backplate. The anti-penetration performance of the bulletproof plate is improved mainly by increasing the thickness of the ceramic, enhancing the strength of the ceramic, and strengthening the ceramic constraint. However, since the tensile strength and shear strength of the ceramic are much smaller than its compressive strength, to a certain extent, it limits the anti-penetration performance of the bulletproof plate. Therefore, it is urgent to study a bulletproof plate with good anti-penetration performance to improve the performance of the bulletproof vest. Summary of the Invention

[0003] This application provides a bulletproof plate and a bulletproof vest.

[0004] In a first aspect, an embodiment of this application provides a bulletproof plate, which includes a ceramic composite plate and a backplate bonded to the ceramic composite plate. The material of the backplate is a fiber composite material. The ceramic composite plate includes at least one layer of ceramic plate, and the ceramic plate is formed by bonding a plurality of ceramic blocks;

[0005] Each ceramic block includes a plurality of ceramic sheets stacked along a first direction. The plurality of ceramic sheets are bonded by a resin adhesive. At least one through hole is formed in the ceramic sheet. At least one end of the through hole has a flared opening. The flared openings of two adjacent ceramic sheets form a receiving space. A ceramic ball is placed in the receiving space. A rope sequentially passes through the through holes in the plurality of ceramic sheets, and the rope located in the receiving space is wrapped around the outside of the ceramic ball. The material of the rope is a high-strength fiber, and each rope is parallel to the backplate.

[0006] Optionally, a plurality of the ceramic blocks are stacked in a second direction to form a ceramic plate, and the second direction is perpendicular to the first direction.

[0007] Optionally, the ends of two ceramic blocks are perpendicular to each other to form an L-shaped stacking block, and a plurality of the L-shaped stacking blocks are stacked to form a ceramic plate.

[0008] Optionally, the ceramic composite plate includes multiple layers of ceramic plates.

[0009] Optionally, both ends of the through hole have flared openings.

[0010] Optionally, the inner surface of the flared opening is a conical surface.

[0011] Optionally, after each ceramic block is stacked, the bonding of the ceramic sheets is achieved through an impregnation process.

[0012] In a second aspect, an embodiment of the present application provides a bulletproof vest, which includes a garment cover and a plurality of bulletproof plates according to any one of the embodiments of the present application. The garment cover has a plurality of accommodation bags, and the plurality of bulletproof plates are inserted into the accommodation bags.

[0013] Advantages of the present application: The ropes connect the ceramic plates in series through the through holes in the ceramic plates. The ropes are made of high-strength fibers, and their tensile strength and failure strain are much greater than those of ceramic materials. After the ceramic is impacted and broken, the ropes can still hinder the movement of the bullet for a long time relying on the inertial effect of the serially connected ceramic plates. In addition, ceramic balls are provided at the joints between the ropes and the ceramic plates, which can produce a self-locking effect when the ropes are stretched and hinder the sliding of the ropes. Therefore, by virtue of the high tensile strength of the high-strength fibers, the present application improves the inertial effect of the ceramic plate under the penetration state and improves the anti-penetration performance of the bulletproof plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Structural schematic diagram of a ceramic plate according to an embodiment of the present application Figure 1 ;

[0015] Figure 2 Structural schematic diagram of a ceramic plate according to an embodiment of the present application Figure 2 ;

[0016] Figure 3 Structural schematic diagram of a ceramic block according to an embodiment of the present application;

[0017] Figure 4 Structural schematic diagram of a ceramic plate containing ceramic balls and ropes according to an embodiment of the present application;

[0018] Figure 5 Structural schematic diagram of a ceramic plate according to an embodiment of the present application;

[0019] Figure 6 Structural schematic diagram of another ceramic plate according to an embodiment of the present application;

[0020] Figure 7 Structural schematic diagram of a bulletproof plate according to an embodiment of the present application.

[0021] Among them, the reference numerals are: 1, ceramic plate; 2, rope; 3, ceramic ball; 4, ceramic block; 5, ceramic composite plate; 6, back plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0023] It is understood that the specific embodiments and accompanying drawings described herein are only for explaining the present invention, rather than limiting the present invention.

[0024] It is understood that, without conflict, the various embodiments of the present invention and the various features in the embodiments may be combined with each other.

[0025] It is understood that for the convenience of description, only the parts related to the embodiments of the present invention are shown in the accompanying drawings of the present invention, and the parts unrelated to the embodiments of the present invention are not shown in the accompanying drawings.

[0026] In a first aspect, referring to Figures 1 to 7 , an embodiment of the present application provides a bulletproof panel, which includes a ceramic composite plate 5 and a back plate 6 bonded to the ceramic composite plate. The material of the back plate 6 is a fiber composite material. The ceramic composite plate 5 includes at least one layer of ceramic plates, and the ceramic plates are bonded by a plurality of ceramic blocks 4;

[0027] Each ceramic block 4 includes a plurality of ceramic sheets 1 stacked along a first direction. The plurality of ceramic sheets 1 are bonded by a resin adhesive. At least one through hole is formed in the ceramic sheet 1, and at least one end of the through hole has a flared opening. The flared openings of two adjacent ceramic sheets form a receiving space. A ceramic ball 3 is placed in the receiving space. A rope 2 sequentially passes through the through holes in the plurality of ceramic sheets 1, and the rope 2 located in the receiving space is wrapped around the outside of the ceramic ball 3. The material of the rope 2 is a high-strength fiber, and each rope is parallel to the back plate.

[0028] The shape and size of each ceramic sheet are the same. The edges and through holes of adjacent ceramic sheets are aligned. The end of the through hole has a flared opening. The ends of adjacent ceramic sheets with flared openings are arranged opposite to each other to form a receiving space. A ceramic ball is placed in the receiving space. The ceramic ball 3 is buried inside the rope 2. The plurality of ceramic sheets 1 are connected together along the rope 2 to form a ceramic block. After the ceramic block is soaked in resin, the two ends of the rope are further fixed and strengthened.

[0029] The rope 2 is made of a high-performance fiber, and its tensile strength and failure strain are much greater than those of the ceramic material. After the ceramic is impacted and broken, the rope still can hinder the movement of the bullet for a long time relying on the inertial effect of the connected ceramic sheets. Ceramic balls are arranged at the joints of the rope and the ceramic sheets, and a self-locking effect can be generated when the rope is stretched, hindering the sliding of the rope, thereby improving the anti-penetration performance of the bulletproof panel.

[0030] High-performance fibers refer to fibers with high strength and high modulus, such as carbon fiber, PBO fiber, ultra-high molecular weight polyethylene fiber (UHMWPE), etc. In the above solutions, bonding resins with low density and good impact resistance are mainly used, such as ultra-high molecular weight polyethylene resin, polyurea resin, polyamide resin, etc.

[0031] Optionally, multiple ceramic blocks 4 are stacked in the second direction to form a ceramic plate, and the second direction is perpendicular to the first direction. The multiple ceramic blocks 4 are bonded by resin to form a ceramic plate. Using the above stacking method can make the ceramic blocks closely combined, facilitating the stacking and processing of the ceramic plate.

[0032] Optionally, the ends of two ceramic blocks 4 are perpendicular to each other to form an L-shaped stacking block, and multiple L-shaped stacking blocks are stacked to form a ceramic plate. Using the L-shaped stacking method, when a bullet hits the ceramic, multiple ceramic blocks will be impacted simultaneously. Since the extension directions of the ropes (i.e., the stacking directions of the ceramic blocks) are staggered, the obstruction to the bullet is greater than that in the scheme where the rope extension directions are the same, which can significantly improve the anti-penetration performance of the bulletproof plate. In addition, the ends of two ceramic blocks 4 are perpendicular to each other to form an L-shaped stacking block, which is beneficial for the ceramic blocks to be spliced into a plane.

[0033] Optionally, the ceramic composite plate 5 includes multiple ceramic plates. The protective effect of using multiple ceramic plates is better than that of a single ceramic plate.

[0034] Optionally, both ends of the through hole have flared openings. In this way, there are ceramic balls between any two adjacent ceramic plates, which can enhance the obstruction of the rope to the bullet.

[0035] Optionally, the inner surface of the flared opening is a conical surface. The conical surface can limit the ceramic balls, thereby improving the obstruction of the ceramic balls to the rope.

[0036] Optionally, after each ceramic block 5 is stacked, the bonding of the ceramic sheets is achieved through an impregnation process. Using the impregnation process can significantly improve the bonding strength between the ceramic sheets.

[0037] In a second aspect, an embodiment of the present application provides a bulletproof vest, which includes a jacket and multiple bulletproof plates according to any one of the embodiments of the present application. The jacket has multiple accommodation pockets, and multiple bulletproof plates are inserted into the accommodation pockets.

[0038] Among them, the ceramic composite plate is composed of a single single-layer ceramic plate or multiple single-layer ceramic plates bonded together by resin. The ceramic composite plate and the fiber composite material back plate are bonded and fixed by resin to form the required bulletproof plate.

[0039] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, 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 regarded as the protection scope of the present invention.

Claims

1. A bulletproof plate, characterized in that, it includes a ceramic composite plate and a back plate bonded to the ceramic composite plate, the material of the back plate is a fiber composite material, the ceramic composite plate includes at least one layer of ceramic plates, and the ceramic plates are bonded by a plurality of ceramic blocks; each of the ceramic blocks includes a plurality of ceramic sheets stacked in a first direction, the plurality of ceramic sheets are bonded by resin glue, at least one through hole is formed in the ceramic sheet, at least one end of the through hole has a flared opening, and the flared openings of two adjacent ceramic sheets form a receiving space, a ceramic ball is placed in the receiving space, a rope sequentially passes through the through holes in the plurality of ceramic sheets, and the rope located in the receiving space is wrapped around the outside of the ceramic ball, the material of the rope is a high-strength fiber, and each rope is parallel to the back plate.

2. The bulletproof plate according to claim 1, characterized in that, a plurality of the ceramic blocks are stacked in a second direction to form a ceramic plate, and the second direction is perpendicular to the first direction.

3. The bulletproof plate according to claim 2, characterized in that, the ends of two of the ceramic blocks are perpendicular to each other to form an L-shaped stacked block, and a plurality of the L-shaped stacked blocks are stacked to form a ceramic plate.

4. The bulletproof plate according to claim 3, characterized in that, the ceramic composite plate comprises multiple layers of ceramic plates.

5. The bulletproof plate according to claim 1, characterized in that, both ends of the through hole have flared openings.

6. The bulletproof plate according to claim 5, characterized in that, the inner surface of the flared opening is a conical surface.

7. The bulletproof plate according to claim 5, characterized in that, after each of the ceramic blocks is stacked, the bonding of the ceramic sheets is realized through an impregnation process.

8. A bulletproof vest, characterized in that, the bulletproof vest includes a jacket and a plurality of bulletproof plates according to any one of claims 1-7, the jacket has a plurality of receiving pockets, and the plurality of bulletproof plates are inserted into the receiving pockets.

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