Police puncture-proof layer structure
By using a composite design of a stab-resistant layer consisting of a fabric layer, an alloy protective layer, and a foam cushioning layer, the problem of high cost and difficulty in recycling stab-resistant clothing is solved, achieving a low-cost and recyclable stab-resistant effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN AVIATION IND CHUANXI MACHINE CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-01
AI Technical Summary
Existing stab-proof vests are made of high-molecular special fibers, which are costly and difficult to recycle after being damaged, resulting in material waste.
It adopts a stab-resistant layer structure, which includes a composite design of a fabric layer, an alloy protective layer, a foam cushioning layer and an anti-slip layer. The alloy protective layer deforms and wraps around the sharp object when it is stabbed, preventing puncture, and is recyclable.
It achieves low-cost stab-proof effect, while the material is recyclable, reducing usage costs.
Smart Images

Figure CN224179231U_ABST
Abstract
Description
A police stab-resistant layer structure Technical Field
[0001] This utility model belongs to the technical field of stab-proof vests, and relates to a police stab-proof layer structure. Background Technology
[0002] Stab-resistant vests are commonly used security equipment. Wearing them can effectively prevent injuries from sharp objects such as knives and awls, protecting the wearer's safety. Existing stab-resistant vests are made by layering high-polymer special fibers, which involves complex manufacturing processes and are relatively expensive. Furthermore, once the polymer special fiber layer is punctured, its strength is compromised and it cannot be recycled, resulting in material waste.
[0003] Therefore, this utility model addresses the shortcomings of existing stab-proof vests made of special polymer fibers, such as high price and difficulty in recycling after damage, by disclosing a police stab-proof layer structure. Summary of the Invention
[0004] The purpose of this invention is to provide a police stab-resistant layer structure that can form a protective layer with excellent puncture resistance through a simple stacking structure, effectively protecting the safety of the wearer, while also allowing for the recycling of internal materials, thus effectively reducing usage costs.
[0005] This utility model is achieved through the following technical solution:
[0006] A police-grade stab-resistant layer structure includes a stab-resistant protective sleeve. One end of the protective sleeve has an opening that can be opened and closed. The stab-resistant layer is disposed inside the protective sleeve. The stab-resistant layer includes a fabric layer and an alloy protective layer stacked sequentially. A foam cushioning layer is stacked on the side of the fabric layer away from the alloy protective layer. An anti-slip layer is stacked on the side of the alloy protective layer away from the fabric layer. Several discontinuous folds are provided at the edge of the fabric layer. When folded, the folds can completely cover the edge of the alloy protective layer.
[0007] The anti-slip layer increases friction between the alloy protective layer and the stab-resistant sheath, ensuring the alloy protective layer remains securely within the sheath and preventing slippage. The cushioning foam layer on the other side absorbs the force of a sharp object's impact, enhancing overall comfort when worn. The alloy protective layer, the primary protective structure, deforms under impact to encase the object, effectively dispersing its force and preventing penetration, thus protecting the wearer.
[0008] Meanwhile, after the stab-resistant layer structure is punctured and the alloy protective layer deforms, the stab-resistant layer protective sleeve in the alloy protective layer can be removed for recycling, thereby reducing the usage cost of the stab-resistant layer structure.
[0009] To better realize this utility model, a folded contour area is further provided at the edge of the fabric layer, and a notch is provided at intervals on the folded contour area, with a folded part formed between two adjacent notches.
[0010] To better realize this utility model, further, the width of the notch is less than or equal to half the width of the folded contour area.
[0011] To better realize this utility model, the fabric layer is further provided with a positioning outline line corresponding to the outline of the alloy protective layer.
[0012] To better realize this utility model, the alloy protective layer further comprises at least five layers of alloy sheets that are aligned and stacked in sequence, and the edges of adjacent alloy sheets are bonded together by adhesive.
[0013] To better realize this utility model, the foam buffer layer further includes at least one layer of EVA foam board, the thickness of which is greater than or equal to 4mm.
[0014] To better realize this utility model, the anti-slip layer further includes at least one layer of high molecular weight polyethylene felt, the thickness of which is greater than or equal to 3mm.
[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0016] This invention incorporates an alloy protective layer inside the stab-resistant protective sleeve. The toughness and strength of the alloy protective layer effectively cushion the impact of sharp objects, protecting the wearer's safety. Furthermore, if the alloy protective layer deforms or breaks, it can be removed from the stab-resistant protective sleeve, melted, and remade into a new alloy protective layer, achieving effective material recycling and reducing the cost of using the stab-resistant layer. Attached Figure Description
[0017] Figure 1 is a schematic diagram of the disassembled structure of the police stab-resistant layer;
[0018] Figure 2 is a schematic diagram of the fabric layer structure;
[0019] Figure 3 is a magnified view of part A in Figure 2;
[0020] Figure 4 is a cross-sectional view of the police stab-resistant layer structure.
[0021] Among them: 1-foam buffer layer; 2-puncture-proof protective sleeve; 3-puncture-proof layer; 4-anti-slip layer; 5-alloy protective layer; 6-fabric layer; 7-notch. Detailed Implementation
[0022] The following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is intended to include the plural form as well. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0024] For ease of description, the words "up," "down," "left," and "right" appearing in this utility model only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves, and do not limit the structure. They are merely for the purpose of facilitating the description of this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Terminology Explanation: The terms "installation," "connection," "linking," and "fixing" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0026] Example 1:
[0027] This embodiment of a police stab-resistant layer structure, as shown in Figures 1-4, includes a stab-resistant protective sleeve 2. One end of the protective sleeve 2 has an opening that can be opened and closed. Inside the protective sleeve 2 is a stab-resistant layer 3, which includes a fabric layer 6 and an alloy protective layer 5 stacked sequentially. A foam cushioning layer 1 is stacked on the side of the fabric layer 6 away from the alloy protective layer 5, and an anti-slip layer 4 is stacked on the side of the alloy protective layer 5 away from the fabric layer 6. Several discontinuous folds are provided at the edge of the fabric layer 6, which, when folded, completely cover the edge of the alloy protective layer 5. A folded contour area is provided at the edge of the fabric layer 6, and notches 7 are provided at intervals on the folded contour area, with adjacent notches 7 forming folds.
[0028] The alloy protective layer 5 is placed on the fabric layer 6, and the folded portion at the edge of the fabric layer 6 is folded towards the edge of the alloy protective layer 5, so that the folded portion can completely cover the edge of the alloy protective layer 5, thereby ensuring the integrity and stability of the alloy protective layer 5. Then, an anti-slip layer 4 is laid on the side of the fabric layer 6 away from the alloy protective layer 5. The anti-slip layer 4 contacts the inner side of the puncture-resistant protective sleeve 2. By setting the anti-slip layer 4, the friction between it and the puncture-resistant protective sleeve 2 is increased, preventing the alloy protective layer 5 from slipping.
[0029] Furthermore, the width of the notch 7 is less than or equal to half the width of the folded contour area.
[0030] Furthermore, the fabric layer 6 is provided with a positioning outline corresponding to the outline of the alloy protective layer 5. By aligning the positioning outline with the edge of the alloy protective layer 5, the alloy protective layer 5 can be quickly positioned on the fabric layer 6, which helps to quickly wrap the folded part to the edge of the alloy protective layer 5 in the future.
[0031] Example 2:
[0032] A police-grade stab-resistant layer structure, an improvement upon Embodiment 1, wherein the alloy protective layer 5 comprises at least five sequentially aligned and stacked alloy sheets, with the edges of adjacent alloy sheets bonded together by adhesive. The alloy sheets are prepared by cutting cold-rolled steel strips, which possess excellent flexibility, effectively dispersing and buffering the stabbing force upon receiving a sharp object's thrust, while preventing puncture.
[0033] The other parts of this embodiment are the same as those in Embodiment 1, so they will not be described again.
[0034] Example 3:
[0035] A police-grade stab-resistant layer structure, an improvement on embodiment 1 or 2, as shown in Figure 4, wherein the foam buffer layer 1 includes at least one layer of EVA foam board, the thickness of which is greater than or equal to 4 mm. By setting the EVA foam board, the wearing comfort of the entire stab-resistant layer structure can be improved.
[0036] The other parts of this embodiment are the same as those in Embodiment 1 or 2, so they will not be described again.
[0037] Example 4:
[0038] A police-grade stab-resistant layer structure, improved based on any one of embodiments 1-3, as shown in Figure 4, wherein the anti-slip layer 4 comprises at least one layer of high-molecular-weight polyethylene felt, the thickness of which is greater than or equal to 3 mm. The relatively rough texture of the high-molecular-weight polyethylene felt increases the friction between the alloy protective layer 5 and the inner surface of the stab-resistant layer protective sleeve 2, thereby preventing the alloy protective layer 5 from slipping.
[0039] The other parts of this embodiment are the same as any one of embodiments 1-3, so they will not be described again.
[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A police-grade stab-resistant layer structure, comprising a stab-resistant layer protective sleeve (2), characterized in that, One end of the anti-stab layer protective sleeve (2) is provided with an opening that can be opened and closed. The inside of the anti-stab layer protective sleeve (2) is provided with an anti-stab layer (3). The anti-stab layer (3) includes a fabric layer (6) and an alloy protective layer (5) laid out in sequence. A foam cushioning layer (1) is laid out on the side of the fabric layer (6) away from the alloy protective layer (5). An anti-slip layer (4) is laid out on the side of the alloy protective layer (5) away from the fabric layer (6). Several broken folds are provided at the edge of the fabric layer (6). After the folds are folded, they can completely cover the edge of the alloy protective layer (5).
2. The police stab-resistant layer structure according to claim 1, characterized in that, A folded contour area is provided at the edge of the fabric layer (6), and a notch (7) is provided at intervals on the folded contour area, and a fold is formed between two adjacent notches (7).
3. The police stab-resistant layer structure according to claim 2, characterized in that, The width of the notch (7) is less than or equal to half the width of the folded contour area.
4. The anti-stab layer structure for police according to claim 3, characterized in that, The fabric layer (6) has a positioning outline corresponding to the outline of the alloy protective layer (5).
5. A stab protective layer structure for police use according to any of claims 1 - 4, characterized in that The alloy protective layer (5) comprises at least five layers of alloy sheets that are aligned and stacked in sequence, with the edges of adjacent alloy sheets bonded together by adhesive.
6. A police stab-resistant layer structure according to any one of claims 1-4, characterized in that, The foam buffer layer (1) includes at least one layer of EVA foam board, the thickness of which is greater than or equal to 4 mm.
7. A police stab-resistant layer structure according to any one of claims 1-4, characterized in that, The anti-slip layer (4) includes at least one layer of high molecular weight polyethylene felt, the thickness of which is greater than or equal to 3 mm.