Bulletproof flashboard structure with anti-falling resilience performance

Abstract

The utility model relates to a bulletproof flashboard structure with anti-falling and rebound resilience, which comprises a front tear-resistant fabric, a front shock absorption layer, a front crack arrest layer, an inner polyurethane elastomer, a rear crack arrest layer, an outer polyurethane elastomer, a rear shock absorption layer, a PE (polyethylene) back plate and a rear tear-resistant fabric which are sequentially laminated from top to bottom, the ceramic ball is arranged between the front crack arrest layer and the rear crack arrest layer, the ceramic ball is embedded in the inner polyurethane elastomer, the ceramic plate is arranged between the rear crack arrest layer and the inner polyurethane elastomer, the outer polyurethane elastomer comprises a side part and a main body part, the side part is arranged at the end part of the main body part, and the main body part is arranged at the end part of the main body part. The ceramic balls and the ceramic plate are arranged, packaging is conducted through the PU material filling and packaging technology, manual cutting operation is reduced, manufacturing safety is improved, meanwhile, materials are saved, and the stability and the multi-shooting prevention capacity of the bulletproof plate are enhanced.

Description

Technical Field

[0001] The utility model specifically relates to a bulletproof insert plate structure with anti-fall rebound performance. Background Art

[0002] At present, the main structure of bulletproof inserts from the bullet-facing surface to the body-contacting surface is cloth wrapping-crack-stop layer-ceramic layer-PE back plate-cloth wrapping, which can effectively protect against a variety of bullets and environments. However, after the existing bulletproof inserts are subjected to impact, fall or heavy object collision, the ceramic layer may become loose, which may lead to unstable bulletproof performance and affect combat effectiveness.

[0003] In order to overcome the above problems, a bulletproof plate structure with anti-fall and rebound performance is needed. Through integrated mold molding and polyurethane PU material filling and packaging technology, it aims to improve the anti-fall, anti-smash and impact resistance of the bulletproof plate, while protecting the ceramic layer to prevent it from falling off, and improving the stability and anti-multiple shooting capabilities of the bulletproof plate. By reducing manual cutting operations, it can not only improve manufacturing safety, but also save materials, ensuring the appearance quality and dimensional accuracy of the bulletproof plate. And the protection capability can be enhanced by the combination of ceramic balls and ceramic plates, and combined with polyurethane PU material filling and packaging technology, it can better fix the ceramic balls and ceramic plates, and enhance the stability and anti-multiple shooting capabilities of the bulletproof plate. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a bulletproof plate structure with anti-fall rebound performance, which is packaged by setting ceramic balls and ceramic plates and using polyurethane PU material filling and packaging technology to reduce manual cutting operations, improve manufacturing safety, save materials, and enhance the stability of the bulletproof plate and the ability to resist multiple gunshots. The following is a specific solution:

[0005] A bulletproof insert plate structure with anti-fall rebound performance, including a front tear-resistant fabric, a front shock-absorbing layer, a front crack-stop layer, an inner polyurethane elastomer, a rear crack-stop layer, an outer polyurethane elastomer, a rear shock-absorbing layer, a PE back plate, and a rear tear-resistant fabric stacked in sequence from top to bottom, and also including a ceramic ball arranged between the front crack-stop layer and the rear crack-stop layer, the ceramic ball is embedded in the inner polyurethane elastomer, and also includes a ceramic plate arranged between the rear crack-stop layer and the inner polyurethane elastomer, the outer polyurethane elastomer includes a side portion and a main body, the side portion is arranged at the end of the main body, two side portions are provided, the angle between the side portion and the main body is 90 degrees, and the rear crack-stop layer wraps the ceramic plate and the inner polyurethane elastomer.

[0006] In order to improve the tear strength and tensile strength of the bulletproof insert, the front tear-resistant fabric and the rear tear-resistant fabric are made of Kevlar fiber and are layered at a stacking angle of ±45° to form a multi-axial layout. The surfaces of the front tear-resistant fabric and the rear tear-resistant fabric are coated with a waterproof coating.

[0007] In order to absorb and disperse the impact force, reduce the rebound effect, and thus reduce secondary damage to the wearer's body, the material of the front shock-absorbing layer and the material of the rear shock-absorbing layer are closed-cell foam.

[0008] In order to better fill and fix the ceramic balls and ceramic plates, the average particle size of the outer polyurethane elastomer and the inner polyurethane elastomer is 10-50 microns, and the porosity is 20%-50%.

[0009] The connection method of the PE backboard with other components is a combination of bonding, mechanical nailing or hot melting, which enhances the stability of the connection and is conducive to adapting to different usage environments. The connection method of the PE backboard is a combination of one or more of bonding, mechanical nailing and hot melting.

[0010] In order to increase the anti-ballistic performance, the diameter of the ceramic balls is 5 to 20 mm, the number of the ceramic balls is 50 to 100, and the ceramic balls are arranged in a uniformly distributed grid arrangement.

[0011] In order to provide additional strength support and prevent the ceramic ball from breaking when impacted, high-strength fibers or high-strength metal wires are embedded in the ceramic ball.

[0012] In order to achieve a better bulletproof effect, the thickness of the ceramic plate is 1-3 cm, the number of the ceramic plates is between 80-100 pieces, and the ceramic plates are arranged in a regular grid matrix.

[0013] Beneficial effects: Through integrated mold molding and polyurethane PU material filling and packaging technology, it aims to improve the drop resistance, smash resistance and impact resistance of the bulletproof plate, while protecting the ceramic layer to prevent falling, and improve the stability of the bulletproof plate and its ability to resist multiple gunshots; this structure adopts polyurethane PU material filling and packaging technology, which is convenient for mechanical installation and reduces labor costs, which not only improves manufacturing safety, but also greatly saves materials and ensures the appearance quality and dimensional accuracy of the bulletproof plate; the protection capability is enhanced by the cooperation of ceramic balls and ceramic plates, and combined with polyurethane PU material filling and packaging technology, it can better fix the ceramic balls and ceramic plates, and enhance the stability of the bulletproof plate and its ability to resist multiple gunshots. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of a bulletproof insert plate structure with anti-fall resilience performance;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of a bulletproof insert plate structure with anti-fall resilience performance;

[0016] Figure 3 A schematic diagram of a bulletproof plate structure having anti-fall resilience performance from a top view;

[0017] In the figure: 1. front tear-resistant fabric, 2. front shock-absorbing layer, 3. front crack-stopping layer, 4. outer polyurethane elastomer, 4-1. side, 4-2. main body, 5. inner polyurethane elastomer, 6. rear crack-stopping layer, 7. rear shock-absorbing layer, 8. PE backboard, 9. rear tear-resistant fabric, 10. ceramic ball, 11. ceramic plate, 101. polyurethane injection mold. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0019] In this embodiment:

[0020] Please see Figure 1-Figure 3 A bulletproof insert plate structure with anti-fall rebound performance includes a front tear-resistant fabric 1, a front shock-absorbing layer 2, a front crack-stop layer 3, an inner polyurethane elastomer 5, a rear crack-stop layer 6, an outer polyurethane elastomer 4, a rear shock-absorbing layer 7, a PE backboard 8, and a rear tear-resistant fabric 9 stacked in sequence from top to bottom, and also includes a ceramic ball 10 arranged between the front crack-stop layer 3 and the rear crack-stop layer 6, the ceramic ball 10 is embedded in the inner polyurethane elastomer 5, and also includes a ceramic plate arranged between the rear crack-stop layer 6 and the inner polyurethane elastomer 5, the outer polyurethane elastomer 4 includes a side portion 4-1 and a main body 4-2, the side portion 4-1 is arranged at the end of the main body 4-2, the side portion 4-1 is provided with two, the angle between the side portion 4-1 and the main body 4-2 is 90 degrees, and the rear crack-stop layer 6 wraps the ceramic plate and the inner polyurethane elastomer 5.

[0021] In order to improve the tear strength and tensile strength of the bulletproof insert, the front tear-resistant fabric 1 and the rear tear-resistant fabric 9 are made of Kevlar fiber and are layered at a stacking angle of ±45° to form a multi-axial layout. The surfaces of the front tear-resistant fabric 1 and the rear tear-resistant fabric 9 are coated with a waterproof coating.

[0022] In order to absorb and disperse the impact force, reduce the rebound effect, and thus reduce secondary damage to the wearer's body, the material of the front shock-absorbing layer 2 and the material of the rear shock-absorbing layer 7 are closed-cell foam.

[0023] In order to better fill and fix the ceramic balls 10 and the ceramic plates, the average particle size of the outer polyurethane elastomer 4 and the inner polyurethane elastomer 5 is 10-50 microns, and the porosity is 20%-50%.

[0024] The connection method between the PE back panel 8 and other components is a combination of bonding, mechanical pinning or hot melting, which enhances the stability of the connection and is conducive to adapting to different usage environments. The connection method of the PE back panel 8 is a combination of one or more of bonding, mechanical pinning and hot melting.

[0025] In order to increase the bulletproof performance, the diameter of the ceramic ball 10 is 5 to 20 mm, the number of the ceramic balls 10 is 50 to 100, and the ceramic balls 10 are arranged in a uniformly distributed grid arrangement; in order to provide additional strength support and prevent the ceramic balls 10 from breaking when impacted, high-strength fibers or high-strength metal wires are embedded in the ceramic balls 10; for better bulletproof effect, the thickness of the ceramic plates is 1 to 3 cm, the number of the ceramic plates is between 80 and 100 pieces, and the ceramic plates are arranged in a regular grid matrix.

[0026] Through Figure 2 The polyurethane injection mold 101 shown is used to inject polyurethane elastomer.

[0027] The following is the specific operating principle:

[0028] When a bullet hits the bulletproof insert, the front tear-resistant fabric 1 takes effect first, and begins to disperse and absorb the kinetic energy of the bullet through its high strength and toughness. After the front tear-resistant fabric 1 takes effect, the shock-absorbing layer further buffers the kinetic energy of the bullet to prevent it from penetrating into the inner layer. When the kinetic energy of the bullet is further transferred to the crack-stop layer, the properties of the material help to prevent the further development of the crack. When the kinetic energy penetrates this layer, the inner polyurethane elastomer 5 converts the kinetic energy of the bullet into heat energy and elastic deformation, further weakening the ability of the bullet to penetrate. The ceramic ball 1 fixed by the inner polyurethane elastomer 5 0 uses its high hardness to further disperse the impact force of the bullet, prevent and alleviate its penetration. When the residual kinetic energy of the bullet contacts the rear crack arrest layer 6, it can also effectively control the spread of cracks. The 90-degree angle formed by the specially designed side portion 4-1 and the main body 4-2 can effectively protect the ceramic layer, limit the ceramic from falling off to both sides when being hit by gunfire, and improve the ability of the bulletproof plate to resist multiple gunfire. The back plate can absorb the last kinetic energy of penetration to ensure that the bullet cannot penetrate the plug plate. The last layer of tear-resistant fabric effectively fixes the overall plug plate structure to prevent it from falling apart under severe impact.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bulletproof plate structure with anti-fall resilience performance, characterized in that: It includes a front tear-resistant fabric, a front shock-absorbing layer, a front crack-stop layer, an inner polyurethane elastomer, a rear crack-stop layer, an outer polyurethane elastomer, a rear shock-absorbing layer, a PE backboard, and a rear tear-resistant fabric stacked in sequence from top to bottom, and also includes a ceramic ball arranged between the front crack-stop layer and the rear crack-stop layer, the ceramic ball is embedded in the inner polyurethane elastomer, and also includes a ceramic plate arranged between the rear crack-stop layer and the inner polyurethane elastomer, the outer polyurethane elastomer includes a side portion and a main body portion, the side portion is arranged at the end of the main body portion, the side portion is provided with two, the angle between the side portion and the main body portion is 90 degrees, and the rear crack-stop layer wraps the ceramic plate and the inner polyurethane elastomer.

2. The bulletproof plate structure with anti-fall resilience performance according to claim 1, characterized in that: The front tear-resistant fabric and the rear tear-resistant fabric are made of Kevlar fiber and are layered at a stacking angle of ±45° to form a multi-axial layout. The surfaces of the front tear-resistant fabric and the rear tear-resistant fabric are coated with a waterproof coating.

3. The bulletproof plate structure with anti-fall resilience performance according to claim 1, characterized in that: The material of the front shock-absorbing layer and the material of the rear shock-absorbing layer are closed-cell foam.

4. The bulletproof plate structure with anti-fall resilience performance according to claim 1, characterized in that: The average particle size of the outer polyurethane elastomer and the inner polyurethane elastomer is 10-50 microns, and the porosity is 20%-50%.

5. The bulletproof plate structure with anti-fall resilience performance according to claim 1, characterized in that: The connection method of the PE back sheet is a combination of one or more of adhesive connection, mechanical nailing and hot melt connection.

6. The bulletproof plate structure with anti-fall resilience performance according to claim 1, characterized in that: The diameter of the ceramic balls is 5 to 20 mm, the number of the ceramic balls is 50 to 100, and the ceramic balls are arranged in a uniformly distributed grid arrangement.

7. The bulletproof plate structure with anti-fall resilience performance according to claim 6, characterized in that: High-strength fibers or high-strength metal wires are embedded in the ceramic balls.

8. The bulletproof plate structure with anti-fall resilience performance according to claim 1, characterized in that: The thickness of the ceramic plates is 1-3 cm, the number of the ceramic plates is between 80-100, and the ceramic plates are arranged in a regular grid matrix.

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