Bulletproof structure and body armor

Abstract

The bulletproof structure comprises a bullet facing layer, a stress layer and a supporting protection layer, the stress layer and the bullet facing layer are arranged in a spaced mode, the supporting protection layer comprises at least one protection unit, the protection unit is arranged between the bullet facing layer and the stress layer, and the protection unit is provided with a stress end and a component force end. The stress end of the protection unit is connected to the bullet meeting layer, and the component force end of the protection unit is connected to the stress layer and used for dispersing point impact force borne by the bullet meeting layer to act on the plane where the stress layer is located. According to the utility model, the problem that the light weight requirement of a user cannot be met because the anti-impact performance of the anti-impact layer is realized by compounding layers of materials and the weight of the anti-impact layer is larger can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective equipment, and particularly relates to a bulletproof structure and a bulletproof vest. Background Art

[0002] In order to prevent bullets from penetrating and reduce the impact force brought by bullets, bulletproof structures have emerged as the times require.

[0003] For example, the Chinese utility model patent with the application number: CN97247140.5, named: A Shock Wave and Bullet (Fragment) Proof Vest, which includes a vest and a protective layer. Its characteristics are: the protective layer includes a shock wave protective layer and a shrapnel protective layer. Among them, the shock wave protective layer includes a nickel foam layer, and the shrapnel protective layer is composed of a composite of an aluminum alloy layer and a high-strength fabric layer. This device has the characteristics of being able to prevent strong shock waves and the penetration of medium- and low-speed fragments. However, this shockproof layer realizes the shockproof performance through the compounding of layers of materials, with a relatively large weight and unable to meet the needs of users for lightweight design.

[0004] Therefore, there is an urgent need for a bulletproof structure and a bulletproof vest to solve the problem in the prior art that the shockproof layer realizes the shockproof performance through the compounding of layers of materials, resulting in a relatively large weight and thus unable to meet the lightweight requirements of users. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and propose a bulletproof structure and a bulletproof vest to solve the technical problem in the prior art that the shockproof layer realizes the shockproof performance through the compounding of layers of materials, resulting in a relatively large weight and thus unable to meet the lightweight requirements of users.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a bulletproof structure, including:

[0008] A bullet-facing layer;

[0009] A force-bearing layer, which is arranged at an interval with the bullet-facing layer and is arranged away from the bullet head relative to the bullet-facing layer; and

[0010] A support and protection layer, including at least one protection unit, the protection unit is arranged between the bullet-facing layer and the force-bearing layer, and the protection unit has a force-bearing end and a force-dividing end. The force-bearing end of the protection unit is connected to the bullet-facing layer, and the force-dividing end is connected to the force-bearing layer, and is used to disperse the point impact force received by the bullet-facing layer and act on the plane where the force-bearing layer is located.

[0011] In some embodiments, the interior of the protection unit is hollow.

[0012] In some embodiments, the cross-section of the protection unit decreases in the direction close to the bullet-facing layer, and the force-receiving end is planar and connected to the bullet-facing layer, and the force-dividing end is annular and connected to the force-bearing layer.

[0013] In some embodiments, the protection unit is any one of a frustum shape, a square frustum shape, or a semi-circular shape.

[0014] In some embodiments, the number of the protection units in the support and protection layer is multiple. The multiple protection units are spaced apart and closely arranged, and are respectively connected to the bullet-facing layer and the force-bearing layer.

[0015] In some embodiments, the distance between two adjacent protection units is less than the diameter of the bullet warhead.

[0016] In some embodiments, the material of the protection unit is any one of steel, carbon fiber, and ceramic.

[0017] In some embodiments, the material of the bullet-facing layer is steel.

[0018] In some embodiments, the material of the force-bearing layer is steel.

[0019] In a second aspect, the present invention further provides a bulletproof vest, including the bulletproof structure as described above.

[0020] Compared with the prior art, the beneficial effects of the bulletproof structure and the bulletproof vest provided by the present invention include: The bulletproof structure is composed of a bullet-facing layer, a force-bearing layer, and a support and protection layer. The force-bearing layer is spaced apart from the bullet-facing layer. At least one protection unit is disposed between the bullet-facing layer and the force-bearing layer. The force-receiving end of the protection unit is connected to the bullet-facing layer, and the force-dividing end is connected to the force-bearing layer, and is used to disperse the point impact force received by the bullet-facing layer to the plane where the force-bearing layer is located. Compared with the prior art, by disposing at least one protection unit between the bullet-facing layer and the force-bearing layer, and using the protection unit to disperse the point impact force received by the bullet-facing layer to the plane where the force-bearing layer is located, the impact force generated when the bullet impacts is dispersed to both sides, so that the point impact of the bullet is converted into a surface impact. It not only has a simple structure, but also effectively disperses the impact force to form protection and bulletproof performance, and can solve the problem that in the prior art, because the impact protection layer realizes the impact protection performance through layer-by-layer material compounding, its weight is relatively large, resulting in the inability to meet the lightweight requirements of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic cross-sectional structure diagram of a bulletproof structure provided by an embodiment of the present invention;

[0022] Figure 2 is a three-dimensional structure diagram of a support and protection layer provided by an embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of the force analysis of a bulletproof structure provided by an embodiment of the present utility model;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of another state of a bulletproof structure provided by an embodiment of the present utility model.

[0025] Description of the reference numerals:

[0026] Bullet-facing layer 1;

[0027] Force-bearing layer 2;

[0028] Support and protection layer 3;

[0029] Protection unit 31;

[0030] Force-bearing end 32;

[0031] Component force end 33. Specific embodiments

[0032] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] In order to solve the technical problem that the impact-resistant layer realizes the impact-resistant performance through layer-by-layer material lamination, resulting in a relatively large weight and thus unable to meet the lightweight requirements of users, the present utility model provides a bulletproof structure and a bulletproof vest, which can disperse the impact force generated when a bullet impacts to both sides, convert the point impact of the bullet into a surface impact, not only has a simple structure, but also effectively disperses the impact force to form protection and bulletproof performance.

[0034] It should be noted that the bulletproof structure and bulletproof vest of the present utility model are used in but not limited to the technical field of protective equipment, etc. For the convenience of description, in the present utility model, only the case where the bulletproof structure and bulletproof vest are applied to the technical field of protective equipment is taken as an example for description, and the principle of the bulletproof structure and bulletproof vest applied to other types of equipment is essentially the same as that applied to the technical field of protective equipment, which will not be elaborated here one by one.

[0035] Please refer to Figures 1 to 4 , Figure 1 , Figure 2The structural schematic diagram of the protection structure in an embodiment of the present utility model. A bulletproof structure includes: a bullet-facing layer 1, a force-bearing layer 2, and a support and protection layer 3. The force-bearing layer 2 is arranged at an interval from the bullet-facing layer 1 and is set away from the bullet tip relative to the bullet-facing layer 1. The support and protection layer 3 includes at least one protection unit 31. The protection unit 31 is arranged between the bullet-facing layer 1 and the force-bearing layer 2, and the protection unit 31 has a force-bearing end 32 and a force-dividing end 33. The force-bearing end 32 of the protection unit 31 is connected to the bullet-facing layer 1, and the force-dividing end 33 is connected to the force-bearing layer 2, for dispersing the point impact force received by the bullet-facing layer 1 and acting on the plane where the force-bearing layer 2 is located.

[0036] In this device, the bulletproof structure is composed of a bullet-facing layer 1, a force-bearing layer 2, and a support and protection layer 3. The force-bearing layer 2 is arranged at an interval from the bullet-facing layer 1. At least one protection unit 31 is arranged between the bullet-facing layer 1 and the force-bearing layer 2. The force-bearing end 32 of the protection unit 31 is connected to the bullet-facing layer 1, and the force-dividing end 33 is connected to the force-bearing layer 2, for dispersing the point impact force received by the bullet-facing layer 1 and acting on the plane where the force-bearing layer 2 is located.

[0037] Compared with the prior art, by arranging at least one protection unit 31 between the bullet-facing layer 1 and the force-bearing layer 2, and using the protection unit 31 to disperse the point impact force received by the bullet-facing layer 1 to the plane where the force-bearing layer 2 is located, the impact force generated when the bullet impacts is dispersed to both sides, converting the point impact of the bullet into a surface impact. It not only has a simple structure, but also effectively disperses the impact force to form protection and bulletproof performance, and can solve the problem in the prior art that the anti-impact layer is realized by laminating layers of materials to achieve anti-impact performance, resulting in a relatively large weight, thus unable to meet the lightweight requirements of users.

[0038] Furthermore, since the impact force of the bullet belongs to point impact force, usually common protection is achieved by using bulletproof steel plates to prevent damage. Facing the impact of the bullet, the bulletproof steel plate prevents the bullet from penetrating and causing damage through its own high material performance. After achieving bulletproof performance, the impact force brought by the bullet is usually borne by the support structure of the bulletproof plate. For example, a vehicle bears the impact force of the bullet by the entire vehicle body, a bulletproof wall bears the impact by the wall and the foundation, but a bulletproof vest bears the impact brought by the bullet by the human body. Therefore, this device disperses and transmits the point impact of the bullet to the force-bearing layer 2 by arranging the support and protection layer 3, thereby reducing the impact borne by the human body.

[0039] In this embodiment, the interior of the protection unit 31 is hollow.

[0040] By arranging the protection unit 31 with a hollow interior, when the force-bearing end 32 of the protection unit 31 is stressed, it has a certain amount of deformation. It can not only offset part of the impact force, but also transmit the impact force to the force-dividing end 33 and finally transmit it to the force-bearing surface, forming a dispersed force-bearing surface.

[0041] In one embodiment, please refer to Figure 1 , Figure 2 , the cross-section of the protection unit 31 decreases in the direction close to the bullet-facing layer 1, and the force-receiving end 32 is planar and connected to the bullet-facing layer 1, and the force-dividing end 33 is annular and connected to the force-bearing layer 2.

[0042] By using the planar force-receiving end 32 to increase the contact area between the protection unit 31 and the bullet-facing layer 1, and at the same time using the annular force-dividing end 33 to disperse the impact force in the circumferential direction, the impact force can be effectively dispersed.

[0043] In one embodiment, please refer to Figure 2 , the protection unit 31 is any one of frustum-shaped, square frustum-shaped or semi-circular.

[0044] The frustum-shaped, square frustum-shaped or semi-circular protection unit 31 can all play a role in buffering and dispersing the impact force.

[0045] Specifically, the frustum-shaped protection unit 31 is the optimal.

[0046] In this embodiment, the number of the protection units 31 in the support protection layer 3 is multiple, and the multiple protection units 31 are spaced apart and closely arranged, and are respectively connected to the bullet-facing layer 1 and the force-bearing layer 2.

[0047] By uniformly arranging a plurality of spaced-apart and closely adjacent protection units 31 on the surface of the force-bearing layer 2, the effect of buffering and dispersing the impact force can be improved.

[0048] In one embodiment, the distance between two adjacent protection units 31 is less than the diameter of the bullet warhead.

[0049] Specifically, as Figure 3 shown, when the bullet-facing layer 1 is impacted by a bullet, the impact force is F, and the force F is transmitted to the force-receiving end 32 of the protection unit 31 and is dispersed along the draft direction of the protection unit 31 into a force F1.

[0050] .

[0051] Furthermore, when the draft angle α is larger, the value of the dispersed force F1 is smaller, but the larger the draft angle α is, the smaller the arrangement density of the protection unit 31 is, and the greater the probability that the bullet falls between two protection units 31 is. Therefore, the distance between two protection units 31 should be less than the diameter of the bullet warhead to have a better bulletproof performance.

[0052] Furthermore, after the force value F1 is transmitted to the protection unit 31, it is decomposed into a force F2 and a force parallel to the force-bearing layer 2.

[0053] ,

[0054] F2 is the impact force that the force-bearing layer 2 needs to bear. Compared with the initial impact force F, it is the force value that the final force-bearing layer 2 needs to bear.

[0055] ,

[0056] The value of the F2 force is greatly reduced, and the stiffness requirement for the force-bearing layer 2 is greatly reduced.

[0057] In one of the embodiments, the material of the protection unit 31 is any one of steel, carbon fiber, and ceramic.

[0058] In one of the embodiments, the material of the bullet-facing layer 1 is steel.

[0059] In one of the embodiments, the material of the force-bearing layer 2 is steel.

[0060] The present utility model also provides a bulletproof vest, including the above bulletproof structure.

[0061] The user can make the protection structure into a specific shape according to needs, such as a bulletproof vest.

[0062] For a better understanding of the present utility model, the following is a detailed description of the technical solution of the present utility model in conjunction with Figures 1 to 4 The bulletproof structure is composed of a bullet-facing layer 1, a force-bearing layer 2, and a support and protection layer 3. The force-bearing layer 2 is arranged at an interval from the bullet-facing layer 1 and is arranged away from the bullet head relative to the bullet-facing layer 1. At least one protection unit 31 is arranged between the bullet-facing layer 1 and the force-bearing layer 2. The force-receiving end 32 of the protection unit 31 is connected to the bullet-facing layer 1, and the force-dividing end 33 is connected to the force-bearing layer 2, and is used to disperse the point impact force received by the bullet-facing layer 1 to the plane where the force-bearing layer 2 is located. Compared with the prior art, by arranging at least one protection unit 31 between the bullet-facing layer 1 and the force-bearing layer 2, the protection unit 31 is used to disperse the point impact force received by the bullet-facing layer 1 to the plane where the force-bearing layer 2 is located, so that the impact force generated when the bullet impacts is dispersed to both sides, converting the point impact of the bullet into a surface impact. It not only has a simple structure, but also effectively disperses the impact force to form protection and bulletproofing.

[0063] The specific working process of the present utility model is as follows. When the bullet-facing layer 1 is impacted by a bullet, the impact force is F, and the force F is transmitted to the force-receiving end 32 of the protection unit 31 and is dispersed along the draft direction of the protection unit 31.

[0064] It is dispersed into the force F1.

[0065] .

[0066] Further, when the draft angle α is larger, the dispersed force value F1 is smaller. However, the larger the draft angle α is, the smaller the arrangement density of the protection units 31 is, and the greater the probability that the bullet falls between two protection units 31 is. Therefore, the distance between two protection units 31 should be less than the bullet diameter to achieve better bulletproof performance.

[0067] Further, after the force value F1 is transmitted to the protection unit 31, it is decomposed into a force F2 and a force parallel to the stress layer 2.

[0068] ,

[0069] F2 is the impact force that the stress layer 2 needs to bear. Compared with the initial impact force F, the force value that the stress layer 2 finally needs to bear

[0070] ,

[0071] The force value of F2 is greatly reduced, and the stiffness requirement for the stress layer 2 is greatly reduced.

[0072] Further, by providing protection units 31 with a hollow interior and a three-layer structure, not only can the buffering and dispersion of the bullet impact force be achieved, but also the overall mass of the structure can be reduced and the production cost can be decreased.

[0073] Through the above structure, the present device can solve the problem in the prior art that the impact protection layer is made by laminating layers of materials to achieve impact protection performance, resulting in a large weight and thus unable to meet the lightweight requirements of users.

[0074] The specific embodiments of the present utility model described above do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A bulletproof structure, characterized in that: include: Anti-bullet layer; A stress-bearing layer is spaced apart from the bullet-proof layer; as well as The supporting protective layer comprises at least one protective unit, wherein the protective unit is arranged between the bullet-proof layer and the stress-bearing layer, and the protective unit has a stress-bearing end and a force-dividing end, wherein the stress-bearing end of the protective unit is connected to the bullet-proof layer, and the force-dividing end is connected to the stress-bearing layer, and is used for dispersing the point impact force received by the bullet-proof layer to the plane where the stress-bearing layer is located.

2. The bulletproof structure according to claim 1, characterized in that: The interior of the protection unit is hollow.

3. The bulletproof structure according to claim 2, characterized in that: The cross section of the protection unit decreases gradually in the direction approaching the bullet-proof layer, and the force-bearing end is planar and connected to the bullet-proof layer, and the force-dividing end is annular and connected to the force-bearing layer.

4. The bulletproof structure according to claim 3, characterized in that: The protection unit is in any one of a truncated cone shape, a square cone shape or a semicircular shape.

5. The bulletproof structure according to claim 4, characterized in that: There are multiple protection units in the supporting protection layer. The multiple protection units are spaced apart from each other and closely arranged, and are respectively connected to the bullet-proof layer and the stress-bearing layer.

6. The bulletproof structure according to claim 5, characterized in that: The distance between two adjacent protection units is smaller than the diameter of the bullet head.

7. The bulletproof structure according to claim 6, characterized in that: The material of the protection unit is any one of steel, carbon fiber and ceramic.

8. The bulletproof structure according to claim 7, characterized in that: The material of the bullet-proof layer is steel.

9. The bulletproof structure according to claim 8, characterized in that: The material of the stress-bearing layer is steel.

10. A bulletproof vest, characterized in that: The invention comprises a bullet-proof structure as claimed in any one of claims 1 to 9.

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