CN219178389U

CN219178389U - Bulletproof plugboard with novel composite structure

Info

Publication number: CN219178389U
Application number: CN202320380647.6U
Authority: CN
Inventors: 王高山; 林勇; 苍宇
Original assignee: Zhongcheng Heavy Equipment Defence Technology Shandong Group Co ltd
Current assignee: Zhongcheng Heavy Equipment Defence Technology Shandong Group Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-06-13
Anticipated expiration: 2033-03-03

Abstract

The utility model provides a bulletproof plugboard with a novel composite structure, and belongs to the technical field of armor materials. The bulletproof flashboard abandons the structure of a single bulletproof steel plate or PE (polyethylene) sandwiched alumina ceramic, and the double-layer bulletproof steel plate and the alumina ceramic are compositely formed. The structure reduces the thickness of the bulletproof steel plate, so that the bulletproof steel plate is easier to deform at the moment of impact, and meanwhile, the arc-shaped yielding groove is additionally arranged on the inner side of the bulletproof steel plate, so that the deformability of the bulletproof steel plate is better, and the occurrence rate of a bullet phenomenon is reduced. In addition, the utility model has the advantages that a plurality of layers of steel wire meshes are arranged in the alumina ceramic, and the cross-linked structure is formed by using the springs, so that the impact resistance is improved compared with a single alumina ceramic layer. In addition, the explosion venting channel which is inclined forwards is arranged at the edge of the bulletproof plugboard, so that the explosion venting channel can play a role in guiding at the instant of crushing the alumina ceramics, and the potential harm of the crushing body to the arms of a human body is relieved.

Description

Bulletproof plugboard with novel composite structure

Technical Field

The utility model relates to the technical field of armor materials, in particular to a bulletproof plugboard with a novel composite structure.

Background

The general trend in armor materials is stiffening, light weight, multi-functional and high efficiency. Bulletproof plugboards are modularized clamping materials, are often used as chest armor in bulletproof clothes, and are very popular in application.

The bulletproof flashboard is generally made of hard materials, and two materials of bulletproof steel plates and ceramic composite plates are commonly used. The bulletproof steel plate adopts high-hardness armor steel and is characterized by low price, large weight, and the phenomenon of springing is easy to cause secondary damage of the warhead. The ceramic composite chest insert plate is formed by compounding bulletproof ceramic and a high-strength fiber backboard, and has the advantages of light weight and no jumping phenomenon; however, ceramic materials are inferior in their ballistic performance to steel plates, and their ballistic principle is based on the absorption of the kinetic energy of the projectile by the rupture, so that their crushed bodies are liable to cause injury to personnel.

Disclosure of Invention

Aiming at the technical defects of the prior art, the utility model provides a bulletproof plugboard with a novel composite structure, so as to solve the technical problem that the bulletproof performance of bulletproof ceramic materials is to be improved.

Another technical problem to be solved by the utility model is how to reduce the injury rate of the broken body of the bulletproof ceramic material to human bodies.

Another technical problem to be solved by the present utility model is how to alleviate the phenomenon of jumping of a ballistic resistant steel sheet.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the bulletproof flashboard of the novel composite structure comprises bulletproof steel plates, gaps, explosion venting channels, pressure-relief grooves, ribs, aluminum oxide ceramics, steel wire nets and springs, wherein the bulletproof steel plates are provided with two layers, the gaps are arranged between the two layers of bulletproof steel plates, the edges of the gaps are provided with the explosion venting channels which incline forwards, the inner sides of the bulletproof steel plates are provided with a plurality of pressure-relief grooves and a plurality of ribs, the gaps are provided with the aluminum oxide ceramics, the ribs are embedded into the aluminum oxide ceramics, the aluminum oxide ceramics are provided with a plurality of layers of steel wire nets, and the springs are connected between the adjacent steel wire nets.

Preferably, the rib comprises a connector, a protruding body, a flank, an inclined end face and a horizontal end face, wherein the connector is positioned on the inner end face of the bulletproof steel plate, the protruding body is arranged at the tail end of the connector, the flank is arranged at two sides of the protruding body, the top face and the bottom face of the flank are provided with the inclined end faces, and the end face of the tail end of the protruding body is the horizontal end face.

Preferably, the yielding groove is arc-shaped, and the height of the yielding groove is not more than 1/2 of the thickness of the bulletproof steel plate.

Preferably, the pressing grooves and the ribs are arranged at intervals on the inner end surface of the bulletproof steel plate, and the pressing grooves and the ribs are parallel to each other.

Preferably, the outside of the bulletproof insert plate is coated with polyimide fibers.

Preferably, the alumina ceramic is replaced with a silicon carbide ceramic or a boron carbide ceramic.

In the technical scheme, the bulletproof steel plate can be made of GY5 material or NP550 material, and can absorb projectile kinetic energy through plastic deformation; clamping alumina ceramics at the gap position; the explosion venting channels at the two sides of the gap incline forwards and are used for guiding the crushing body forwards, so that the possibility of injuring the arms of the human body is reduced; the pressing groove is used for enabling the bulletproof steel plate to be easier to deform in shooting, and is beneficial to relieving the phenomenon of bullet jumping; the convex edges are used for enabling the composite structure of the alumina ceramic and the bulletproof steel plate to be more stable; the aluminum oxide ceramic can be molded by adopting various methods such as grouting, hot pressing, dry pressing and the like, and a steel wire mesh with a spring is arranged in the aluminum oxide ceramic before molding and is molded together with the aluminum oxide ceramic; the steel wire mesh is used as a built-in skeleton of the alumina ceramic, so that the shock resistance of the alumina ceramic is enhanced; the springs form a cross-linked structure of the multi-layer steel wire mesh, and further improve the shock resistance.

The utility model provides a bulletproof plugboard with a novel composite structure, and belongs to the technical field of armor materials. The bulletproof flashboard abandons the structure of a single bulletproof steel plate or PE (polyethylene) sandwiched alumina ceramic, and the double-layer bulletproof steel plate and the alumina ceramic are compositely formed. The structure reduces the thickness of the bulletproof steel plate, so that the bulletproof steel plate is easier to deform at the moment of impact, and meanwhile, the arc-shaped yielding groove is additionally arranged on the inner side of the bulletproof steel plate, so that the deformability of the bulletproof steel plate is better, and the occurrence rate of a bullet phenomenon is increased. In addition, the utility model has the advantages that a plurality of layers of steel wire meshes are arranged in the alumina ceramic, and the cross-linked structure is formed by using the springs, so that the impact resistance is improved compared with a single alumina ceramic layer. In addition, the explosion venting channel which is inclined forwards is arranged at the edge of the bulletproof plugboard, so that the explosion venting channel can play a role in guiding at the instant of crushing the alumina ceramics, and the potential harm of the crushing body to the arms of a human body is relieved.

Drawings

FIG. 1 is a cross-sectional view of the present utility model except for alumina ceramic;

FIG. 2 is a cross-sectional view of the entirety of the present utility model;

FIG. 3 is a partial enlarged view at A in FIG. 2

FIG. 4 is a schematic view of the force applied to the hold-down groove when the bullet hits the present utility model;

in the figure:

1. bulletproof steel plate 2, gap 3, explosion venting channel 4 and pressure relief groove

5. Rib 6, alumina ceramic 7, steel wire mesh 8, spring

9. Connector 10, protrusion 11, flank 12, inclined end face

13. A horizontal end surface.

Detailed Description

Hereinafter, embodiments of the present utility model will be described in detail. In order to avoid unnecessary detail, well-known structures or functions will not be described in detail in the following embodiments. Approximating language, as used in the following examples, may be applied to create a quantitative representation that could permissibly vary without resulting in a change in the basic function. Unless defined otherwise, technical and scientific terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

Example 1

The bulletproof flashboard with the novel composite structure comprises bulletproof steel plates 1, gaps 2, explosion venting channels 3, pressure-relief grooves 4, ribs 5, alumina ceramics 6, steel wire nets 7 and springs 8, wherein the bulletproof steel plates 1 are two layers, the gaps 2 are arranged between the two layers of bulletproof steel plates 1, the explosion venting channels 3 which incline forwards are arranged at the edges of the gaps 2, a plurality of the pressure-relief grooves 4 and a plurality of the ribs 5 are arranged on the inner side of the bulletproof steel plates 1, the alumina ceramics 6 are arranged in the gaps 2, the ribs 5 are embedded into the alumina ceramics 6, a plurality of steel wire nets 7 are arranged in the alumina ceramics 6, and the springs 8 are connected between the adjacent steel wire nets 7.

The structural features of this embodiment are as follows: the bulletproof steel plate 1 can be made of GY5 material or NP550 material, and can absorb projectile kinetic energy through plastic deformation; the aluminum oxide ceramic 6 is clamped at the position of the gap 2; the explosion venting channels 3 at the two sides of the gap 2 incline forwards and are used for guiding the crushing body forwards, so that the possibility of injuring the arms of the human body is reduced; the pressing groove 4 is used for enabling the bulletproof steel plate 1 to be easier to deform in the shooting moment, and is helpful for relieving the phenomenon of bullet-playing; the convex edges 5 are used for stabilizing the composite structure of the alumina ceramic 6 and the bulletproof steel plate 1; the alumina ceramic 6 can be molded by adopting various methods such as grouting, hot pressing, dry pressing and the like, and a steel wire mesh 7 with a spring 8 is arranged in the alumina ceramic 6 before molding and is molded together with the alumina ceramic 6; the steel wire mesh 7 is used as a built-in framework of the alumina ceramic 6, so that the shock resistance of the alumina ceramic is enhanced; the springs 8 form a cross-linked structure of the multi-layer steel wire mesh 7, and further improve the shock resistance.

Example 2

The bulletproof flashboard with the novel composite structure comprises bulletproof steel plates 1, gaps 2, explosion venting channels 3, pressure-relief grooves 4, ribs 5, alumina ceramics 6, steel wire nets 7 and springs 8, wherein the bulletproof steel plates 1 are two layers, the gaps 2 are arranged between the two layers of bulletproof steel plates 1, the explosion venting channels 3 which incline forwards are arranged at the edges of the gaps 2, a plurality of the pressure-relief grooves 4 and a plurality of the ribs 5 are arranged on the inner side of the bulletproof steel plates 1, the alumina ceramics 6 are arranged in the gaps 2, the ribs 5 are embedded into the alumina ceramics 6, a plurality of steel wire nets 7 are arranged in the alumina ceramics 6, and the springs 8 are connected between the adjacent steel wire nets 7. Wherein, bead 5 includes connector 9, protrusion 10, flank 11, slope terminal surface 12, horizontal terminal surface 13, and wherein, connector 9 is located the interior terminal surface of bulletproof steel sheet 1, has protrusion 10 at the connector 9 end, has flank 11 in the protrusion 10 both sides, and the top surface and the bottom surface of flank 11 have slope terminal surface 12, and the terminal surface at protrusion 10 end is horizontal terminal surface 13. The yielding groove 4 is arc-shaped, and the height of the yielding groove 4 is not more than 1/2 of the thickness of the bulletproof steel plate 1. The pressing grooves 4 and the ribs 5 are arranged at intervals on the inner end surface of the bulletproof steel plate 1, and the pressing grooves 4 and the ribs 5 are parallel to each other. Polyimide fibers are coated on the outside of the bulletproof plugboard. The alumina ceramic 6 is replaced by a silicon carbide ceramic or a boron carbide ceramic.

The foregoing describes the embodiments of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the scope of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The bulletproof flashboard of the novel composite structure is characterized by comprising bulletproof steel plates (1), gaps (2), explosion venting channels (3), pressure relief grooves (4), ribs (5), alumina ceramics (6), steel wire nets (7) and springs (8), wherein the bulletproof steel plates (1) are two-layer, the gaps (2) are arranged between the two layers of the bulletproof steel plates (1), the edges of the gaps (2) are provided with the explosion venting channels (3) which are inclined forwards, the inner sides of the bulletproof steel plates (1) are provided with a plurality of pressure relief grooves (4) and a plurality of ribs (5), the gaps (2) are internally provided with alumina ceramics (6), the ribs (5) are embedded into the alumina ceramics (6), a plurality of steel wire nets (7) are arranged in the alumina ceramics (6), and springs (8) are connected between the adjacent steel wire nets (7).

2. The bulletproof plugboard of the novel composite structure according to claim 1, wherein the convex rib (5) comprises a connecting body (9), a protruding body (10), a flank (11), an inclined end face (12) and a horizontal end face (13), wherein the connecting body (9) is positioned on the inner end face of the bulletproof steel plate (1), the protruding body (10) is arranged at the tail end of the connecting body (9), the flanks (11) are arranged at two sides of the protruding body (10), the top face and the bottom face of the flanks (11) are provided with the inclined end face (12), and the end face of the tail end of the protruding body (10) is the horizontal end face (13).

3. The bulletproof plugboard of the novel composite structure according to claim 1, wherein the yielding groove (4) is arc-shaped, and the height of the yielding groove (4) is not more than 1/2 of the thickness of the bulletproof steel plate (1).

4. The bulletproof plugboard with the novel composite structure according to claim 1, wherein the pressing grooves (4) and the ribs (5) are arranged at intervals on the inner end surface of the bulletproof steel plate (1), and the pressing grooves (4) and the ribs (5) are parallel to each other.

5. The new composite structure ballistic panel according to claim 1, wherein the exterior of the panel is covered with polyimide fibers.

6. The new composite structure ballistic insert plate according to claim 1, characterized in that the aluminium oxide ceramic (6) is replaced by a silicon carbide ceramic or a boron carbide ceramic.