CN215064066U

CN215064066U - Lightweight body armor chip

Info

Publication number: CN215064066U
Application number: CN202120996348.6U
Authority: CN
Inventors: 邵强; 田歌
Original assignee: Zhonghang Armoured Technology Co ltd
Current assignee: Zhonghang Armoured Technology Co ltd
Priority date: 2021-02-25
Filing date: 2021-05-11
Publication date: 2021-12-07
Anticipated expiration: 2031-05-11

Abstract

The utility model provides a lightweight body armor chip, including shellproof layer and buffer layer, shellproof layer and buffer layer all cladding are in the protective sheath, shellproof layer piles up for multilayer UHMWPE weftless fabric and forms, shellproof layer's areal density is 4.08kg/m²‑5.28kg/m². Adopt UHMWPE weftless fabric and high performance buffer material integrated design, make the function of used material full play self, effectively realized the armour chip material and subtract heavy requirement.

Description

Lightweight body armor chip

Technical Field

The utility model belongs to the technical field of military police equips, especially, relate to a lightweight armored clothing chip.

Background

With the development of social economy, social security becomes more and more prominent, and countries and individuals are more and more aware of the importance of security protection. Since the advent of body armor concepts, the materials are the material basis for human body protection systems, and humans have continually sought high performance materials suitable for use in the manufacture of body armor. At present, the bulletproof material protection technology is developing towards the direction of high performance and light weight.

At present, most of bulletproof layers in domestic bulletproof garment chips are aramid non-woven cloth or UHMWPE non-woven cloth. But the difference of the surface density of the bulletproof vest core pieces is caused by the difference of the performance of the non-woven cloth.

A soft and light body armor chip and a manufacturing method thereof are introduced in a patent with the application number of CN202010325949.4, the body armor chip consists of a bulletproof layer and a buffer layer; the surface density is less than 5.5kg/m²When the bullet is impacted by a 44Magnum semi-armored hollow tip (SJHP) bullet with the calibrated mass of 15.6g and the bullet speed of 408 +/-9.1) m/s, the requirement of no penetration is met, and the depth of the dent is less than 40 mm. This level of protection is slightly lower than the domestic GA2 level.

In a bullet-proof panel patent with application number CN201520817716.0, it is described that a plurality of bullet-proof panels are stacked together, each panel being made of a single layer of bullet-proof clothThe chips are all equal in size and shape; 28 layers of bulletproof chip PF220(220 g/m)²) The bulletproof chips are stacked together, are not fixed by sewing, and are directly tested according to IIIA-level 9mm bullets in the NIJ0101.04 standard; the areal density was found to be 6.16kg/m²This protection level is slightly lower than the domestic GA2 level.

At present, the density of the bulletproof layer surface of the GA 2-level protection level bulletproof vest chip in the domestic market is 5kg/m²Left and right. In the patent application with the application number of CN202010325949.4, aramid fibers are stacked in multiple layers, and the density of the bulletproof vest chip with the same protection level using aramid fiber non-woven fabric as the bulletproof layer is higher than that using UHMWPE non-woven fabric as the bulletproof layer. In the above patent application with the application number of CN201520817716.0, the bulletproof layer does not mention whether the material is UHMWPE non-woven cloth or aramid non-woven cloth, and the calculated surface density is 6.16kg/m²And is relatively large.

The bullet-proof vest in the market has the technical problems of larger weight and larger depth of recess after being impacted by bullets. Firstly, the surface density of the bulletproof vest chip is too high, which causes heavy load of the wearer during the task execution and is not beneficial to the exertion of tactical actions. The face density of the bulletproof clothes is in a trend of descending year by year, and the face density is also in a trend of descending year by year in a bidding document of related demand units; secondly, the greater the back lining recess is after the bullet impact, the greater the severity of non-penetrating injury to the wearer, and even in severe cases, the greater the loss of combat power to the person.

Disclosure of Invention

In view of this, the utility model discloses aim at overcoming the defect among the prior art, provide a lightweight body armor chip.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the light-weight bulletproof vest chip comprises a bulletproof layer and a buffer layer, wherein the bulletproof layer and the buffer layer are both covered in a protective sleeve, the bulletproof layer is formed by stacking a plurality of layers of UHMWPE (ultrahigh molecular weight polyethylene) laid fabrics, and the areal density of the bulletproof layer is 4.08kg/m²-5.28kg/m²。

Furthermore, the buffer layer is high-elastic EVA layer, and thickness is 5 mm.

Further, the bulletproof layer is formed by orthogonally stacking 16-23 UHMWPE non-woven fabrics according to the angle of 0/90/0/90.

Further, the bulletproof layer is formed by stacking 17 UHMWPE non-woven fabrics orthogonally according to the angle of 0 degree/90 degrees/0 degree/90 degrees, and the surface density of the bulletproof layer is 4.08kg/m²。

Further, the bulletproof layer is formed by stacking 22 UHMWPE non-woven fabrics orthogonally according to the angle of 0 degree/90 degrees/0 degree/90 degrees, and the surface density of the bulletproof layer is 5.28kg/m²。

Furthermore, the protective sleeve is polyester waterproof cloth with a single-side glued.

Compared with the prior art, the utility model discloses following advantage has:

(1) when a wearer carries out tactical actions or executes tasks, the body armor chip provided by the invention can effectively realize the weight reduction of the body armor and achieve the protection purpose of light weight; the density of the bulletproof layer face of the GA 2-grade bulletproof garment chip in the market is 4.5-5.5kg/m²The density of the bulletproof layer surface of the GA 3-grade bulletproof vest chip is 6-7kg/m²The density of the bulletproof layer surface in the GA 2-grade bulletproof vest chip of the invention can be reduced to 4.08kg/m²The density of the bulletproof layer in the GA 3-grade bulletproof vest chip can be reduced to 5.28kg/m²Far below the commercial areal density.

(2) The buffering layer in the bulletproof vest chip adopts the high-elasticity EVA layer, so that the non-penetrating damage to personnel caused by the sinking of the back lining can be effectively reduced when the chip is impacted by a bullet. The sinking value of the bulletproof clothes chips in the market is more between 20 and 25mm, and the average value of the sinking of the GA 2-grade bulletproof clothes chips is 15.5 mm; the average value of the chip recess of the GA 3-grade bulletproof clothes is 15.7mm, which is far lower than the chip recess value of the bulletproof clothes on the market.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a cross-sectional view of a lightweight body armor core in accordance with an embodiment of the present invention.

Description of reference numerals:

1. a protective sleeve; 2. a ballistic layer; 3. a buffer layer.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The raw materials in the examples have the following specifications:

UHMWPE laid fabric: the surface density is 240 +/-10 g/m²；

High-elastic EVA: the thickness is 5mm, wherein the 5mm thick high elastic EVA surface density is 225 +/-10 g/m²Specification model Rc 009.

Polyester waterproof cloth: areal density of 230-²And specification model 210D.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1 GA2 grade body armor panel

As shown in figure 1, 17 layers of UHMWPE laid fabrics are orthogonally stacked at 0 degree/90 degree to form a bulletproof layer, the bulletproof layer and a buffer layer made of 5mm high-elasticity EVA are stacked and then thermally bonded by a high-frequency heat sealing machine through a protective sleeve, the outermost protective sleeve is single-layer single-side glued polyester waterproof cloth, the buffer layer is placed on the bulletproof layer, the bulletproof layer and the buffer layer are coated by the outermost protective sleeve, and the GA 2-level lightweight bulletproof garment chip is obtained after the protective sleeve is thermally bonded, edge sealed and cut on the periphery. Wherein the density of the bulletproof layer is 4.08kg/m²And meets the GA 2-grade bulletproof requirement. The density of the mainstream GA2 bulletproof layer in the market is 4.5-5.5kg/m². A 51 style 7.62mm lead bullet fired by a 54 style 7.62mm pistol can be stopped at a distance of 5 m. 6 times at normal temperature, and 3 times at high and low temperature. The target data of the body armor panel of this example are shown in table 1.

TABLE 1 GA 2-class bullet-proof vest chip test results

Example 2 GA 3-grade body armor panel

As shown in figure 1, 22 layers of UHMWPE laid fabrics are orthogonally stacked at 0 degree/90 degree to form a bulletproof layer, the bulletproof layer is stacked with a buffer layer made of 5mm high-elasticity EVA material and then is thermally bonded by a high-frequency heat sealing machine through a protective sleeve, the outermost protective sleeve is single-layer single-side glued polyester waterproof cloth, the buffer layer is placed on the bulletproof layer, the bulletproof layer and the buffer layer are coated by the outermost protective sleeve, and the light GA 2-level lightweight bulletproof layer is obtained by thermally bonding, edge sealing and cutting the periphery of the bulletproof layerAnd (4) popping the clothes core piece. Wherein the density of the bulletproof layer is 5.28kg/m²Meets the GA3 grade bulletproof level. The density of the mainstream GA3 bulletproof layer in the market is 6-7kg/m². A 51-style 7.62mm lead bullet fired by a 79-style 7.62mm light submachine gun can be prevented at a distance of 5 m. 6 times at normal temperature, and 3 times at high and low temperature. The target data of the body armor panel of this example are shown in table 2.

TABLE 2 GA 3-class bullet-proof vest chip test results

The utility model discloses a UHMWPE weftless fabric and high performance buffer material integrated design make used material full play self function, have effectively realized the armour chip material and have subtract heavy requirement.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight body armor core piece characterized in that: the bulletproof and bulletproof composite material comprises a bulletproof layer and a buffer layer, wherein the bulletproof layer and the buffer layer are both covered in a protective sleeve, the bulletproof layer is formed by stacking a plurality of layers of UHMWPE (ultrahigh molecular weight polyethylene) laid fabrics, and the surface density of the bulletproof layer is 4.08kg/m²-5.28kg/m²。

2. The lightweight body armor panel of claim 1, wherein: the buffer layer is high-elastic EVA layer, and thickness is 5 mm.

3. The lightweight body armor panel of claim 1, wherein: the bulletproof layer is formed by orthogonally stacking 16-23 UHMWPE non-woven fabrics according to the angle of 0 degree/90 degrees/0 degree/90 degrees.

4. The lightweight body armor panel of claim 1, wherein: the bulletproof layer is formed by orthogonally stacking 17 layers of UHMWPE (ultrahigh molecular weight polyethylene) laid fabrics according to the angle of 0 degree/90 degrees/0 degree/90 degrees, and the surface density of the bulletproof layer is 4.08kg/m²。

5. The lightweight body armor panel of claim 1, wherein: the bulletproof layer is formed by orthogonally stacking 22 UHMWPE (ultrahigh molecular weight polyethylene) laid fabrics at an angle of 0 degree/90 degrees/0 degree/90 degrees, and the surface density of the bulletproof layer is 5.28kg/m²。