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body armor

A bulletproof vest and bulletproof layer technology, applied in protective equipment, clothing, clothing, etc., can solve the problem of insufficient bulletproof effect, and achieve the effect of good bulletproof effect, enhanced bulletproof ability, and enhanced absorption and buffering.

Active Publication Date: 2017-10-13
NANJING JIHUA 3521 SPECIAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the "both hard and soft" solution has greatly improved the bulletproof effect of body armor, the bulletproof effect of a simple layer of hard bulletproof layer plus a layer of soft bulletproof layer is still not enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The alloy aluminum plate and high-strength nylon silk of the BPV-Ⅰ bulletproof vest are made as Figure 1 to Figure 6 , body armor, including two layers of composite bulletproof layers, respectively the first composite bulletproof layer and the second composite bulletproof layer, the first composite bulletproof layer is composed of the first hard bulletproof layer 1 and the first soft bulletproof layer 2, the second The composite bulletproof layer is composed of a second hard bulletproof layer 3 and a second soft bulletproof layer 4. The first hard bulletproof layer 1 is composed of several hard sheets 5 protruding in the direction against the ballistic direction. The second hard bulletproof layer The bullet-proof layer 3 is made of a hard sheet 5 without curvature or a plurality of hard sheets 5 protruding against the ballistic direction. The hard sheet 5 is an alloy aluminum plate. The upper and lower adjacent hard sheets 5 are hingedly connected. One side of each h...

Embodiment 2

[0016] Different from Example 1, the outer tactical vest and the KM-2 Kevlar lining (or needle-punched nonwoven felt) using the "Interceptor" body armor weigh a total of 3.8kg, and two pieces of 1.8kg each are added. The boron carbide ceramic plug-in plate has a total weight of 7.4Kg and a protection level of Ⅳ (refer to the American NIJ standard). Make the structure identical with embodiment 1, as Figure 1 to Figure 6, but the hard sheet 5 is a boron carbide ceramic plate. The first hard bulletproof layer 1 and the second hard bulletproof layer 3 have the same thickness, which is 15mm. The first soft bulletproof layer 2 and the second soft bulletproof layer 4 are made of KM-2 Kevlar or needle-punched nonwoven felt with a thickness of 17mm. With reference to NIJ, the body armor made according to the present invention can defend against 30 caliber armor-piercing bullets (U.S. military M2 AP), with a bullet weight of 10.8g, a minimum bullet speed of 900m / s, and a maximum rear...

Embodiment 3

[0018] Adopting a bulletproof vest that reached level 4 with reference to the GA141-2010 police bulletproof vest standard is raised to level 5 after re-preparing according to the structure of the present invention, which can be lower than the threat of the 56-type 7.62mm semi-automatic rifle. Specifically, two silicon carbide plates of 1.63kg, two layers of needle-punched non-woven felt, each 17mm, and the total weight of the body armor is 5.15kg. According to GA141-2010 test, it can also block the warhead, and the depth of the depression is 5mm smaller than the original 23mm.

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Abstract

The invention discloses a bulletproof vest which comprises at least two layers of composite bulletproof layers. Each composite bulletproof layer is composed of a hard bulletproof layer body and a soft bulletproof layer body from outside to inside in the trajectory direction. Each hard bulletproof layer body is formed by hinging a plurality of protruding hard pieces in the direction opposite to the trajectory direction. A metal wire screen woven transversely and longitudinally is further clamped between the hard pieces. According to the bulletproof vest, the original arrangement that a composite bulletproof layer is composed of one hard bulletproof layer body and one soft bulletproof layer body is changed; under the condition that the overall thickness is unchanged, the composite bulletproof layer is composed of the multiple layers of hard bulletproof layer bodies and soft bulletproof layer bodies, absorption and buffer of bullet energy are reinforced, and the bulletproof effect is better.

Description

technical field [0001] The invention relates to the field of body armor, in particular to a body armor. Background technique [0002] Bulletproof Vest is used to protect the human body from damage caused by bullets or shrapnel. So far, composite bulletproof vests have been widely used, that is, lightweight ceramic sheets are used as the outer layer, and high-performance fiber fabrics such as Kevlar are used as the inner layer. The soft bulletproof inner layer, such as a single layer of non-weft cloth, can be used as the backbone structure of the soft bulletproof vest, and multi-layer pressing can be used as hard bulletproof materials such as bulletproof reinforcement plates. Most of the energy of the bullet body is in the impact. The fiber near the point or impact point is absorbed by excessive stretching or piercing to break the fiber; and in the needle-punched nonwoven felt, almost no fiber breakage occurs, and the needle-punched nonwoven felt is composed of a large number...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F41H1/02B32B33/00
CPCB32B33/00B32B2307/56B32B2437/00F41H1/02
Inventor 赵军伟林红
Owner NANJING JIHUA 3521 SPECIAL EQUIP
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