Flexible fabric, preparation method and safety protection device

Abstract

According to the flexible fabric, the preparation method and the safety protection device, the gunpowder which is extremely high in detonation velocity and free of noise is adopted, so that the flexible fabric can complete combustion instantly and generate enough gas, the gas can be inflated into an external safety airbag and enables the external safety airbag to expand, the gas production time of the airbag is remarkably shortened, and therefore the protection effect of the airbag is improved. Compared with a traditional compressed air cylinder system, the weight of the air bag body system is greatly reduced, meanwhile, noise generated when the air bag is unfolded is eliminated, and more comfortable and safer protection experience is provided for a user. In addition, due to the flexible design of the fabric, the fabric can easily adapt to the internal structure of the safety protection device, and the overall adaptability and reliability of the system are improved.

Description

Technical Field

[0001] The present application relates to the field of personal protection technology, and in particular to a flexible fabric, a preparation method and a safety protection device. Background Art

[0002] At present, the airbag system in the safety protection device usually relies on compressed gas cylinders. Since these gas cylinders are made of metal and have a large weight, 8g of CO2 gas, the tank and gas weigh about 40g, which not only increases the weight of the protection device, but also requires additional space and complex triggering devices. This system may not be able to respond in time in an emergency, or it may generate a lot of noise, or the device itself is large and inconvenient to wear, and the noise when the airbag is deployed causes unnecessary fright and hearing damage to the user, which makes it difficult to meet the requirements of modern personal protective equipment for lightweight and high efficiency. Summary of the invention

[0003] In view of this, it is necessary to provide a flexible fabric, preparation method and safety protection device that can reduce the weight of the system and eliminate noise during deployment to address the technical defects of the current airbag system, such as excessive noise and heavy weight.

[0004] To solve the above problems, this application adopts the following technical solutions:

[0005] One of the purposes of the present application is to provide a flexible fabric that can burn instantly and generate sufficient gas, which can be filled into an external airbag and expand it, wherein:

[0006] The flexible fabric is woven from fibers, and gunpowder is attached to the surface of the fibers; or

[0007] The flexible fabric uses fabric material as a base, and a gunpowder layer is sprayed on the surface of the base.

[0008] In some of the embodiments, metal wires are further added into the fibers, and the heat-conducting metal wires include copper wires or aluminum wires.

[0009] In some of the embodiments, a heat-conducting metal film layer is attached to the surface of the gunpowder layer, and the metal film layer includes a copper film or an aluminum film.

[0010] In some embodiments, the flexible fabric is a single-layer or multi-layer structure.

[0011] The second object of the present application is to provide a method for preparing a flexible fabric, comprising the following steps:

[0012] Weaving the powder-attached fibers into a flexible fabric; or

[0013] Spraying gunpowder on a surface of a textile material as a substrate to form a gunpowder layer on the substrate surface;

[0014] The flexible fabric can burn instantly and generate enough gas to fill the external airbag and inflate it.

[0015] In some of the embodiments, the step of weaving the fibers attached with gunpowder into a flexible fabric further includes the following steps:

[0016] A heat-conducting metal wire is added to the fiber, and the fiber to which the gunpowder is attached and the heat-conducting metal wire are woven into a flexible fabric, wherein the heat-conducting metal wire comprises a copper wire or an aluminum wire.

[0017] In some embodiments, the step of spraying gunpowder on the surface of the fabric material as the substrate to form a gunpowder layer on the substrate surface further includes the following steps:

[0018] A heat-conducting metal film layer is attached to the surface of the gunpowder layer, and the metal film layer includes a copper film or an aluminum film.

[0019] In some embodiments, the flexible fabric is a single-layer or multi-layer structure.

[0020] In some of the embodiments, the size of the flexible fabric is 50*50 cm, and the flexible fabric can complete combustion within 50 ms and generate sufficient gas.

[0021] The third purpose of the present application is to provide a safety protection device, including the flexible fabric and the airbag. The flexible fabric can burn instantly and generate enough gas, and the gas can be filled into the airbag to make it expand.

[0022] This application adopts the above technical solution, and its beneficial effects are as follows:

[0023] The flexible fabric, preparation method and safety protection device provided by the present application use gunpowder with extremely high detonation velocity and no noise, so that the flexible fabric can burn instantly and produce enough gas, which can be filled into the external safety airbag and expand it, significantly shortening the airbag gas production time, thereby improving the protective effect of the airbag. Compared with the traditional compressed gas cylinder system, the present invention greatly reduces the weight of the bag system, while eliminating the noise when the airbag is deployed, providing users with a more comfortable and safe protection experience. In addition, the flexible design of the fabric enables it to easily adapt to the internal structure of the safety protection device, improving the overall adaptability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic structural diagram of the flexible fabric provided in Example 1 of the present invention.

[0026] Figure 2 This is a schematic diagram of the structure of the fiber formed by adding heat-conducting metal wires to the fiber for weaving provided in Example 1 of the present invention.

[0027] Figure 3 This is a structural diagram of a flexible fabric made of fibers attached with gunpowder and heat-conducting metal wires in a specific weaving manner as provided in Example 1 of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the flexible fabric provided in Example 2 of the present invention. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] Example 1

[0034] See also Figure 1 , is a schematic diagram of the structure of a flexible fabric provided in an embodiment of the present application, the flexible fabric can burn instantly and generate sufficient gas, the gas can be filled into the external airbag and expand it. The flexible fabric is woven from fibers, and gunpowder is attached to the surface of the fibers. The technical solution implemented is described in detail below.

[0035] In this embodiment, a gunpowder with a very high detonation velocity (about 3000 m / s) and capable of decomposing and generating gas during combustion, such as smokeless gunpowder or other suitable composite explosives, is selected to ensure that no noise is generated during combustion. It can be understood that in practice, the type of gunpowder is not limited, as long as the detonation velocity is high enough, the combustion of the gas-generating fabric can achieve the corresponding effect.

[0036] In this embodiment, the gunpowder is uniformly adhered to the fiber by chemical or physical methods; since the fiber has the characteristics of high strength and light weight, it will become the basic material of the fabric.

[0037] It should be noted that the fiber here can be the fiber provided by the prior art, and can include the fuse used in fireworks. As long as it is a fast fuse, such as a burning speed of 100m / s, it itself can also be regarded as a single fiber.

[0038] Furthermore, metal wires are added into the fibers, and the heat-conducting metal wires include copper wires or aluminum wires.

[0039] It is understood that during the weaving process, heat-conducting metal wires, such as copper wires or aluminum wires, are added to the fibers to improve the heat conduction efficiency during combustion and ensure rapid ignition of the gunpowder while maintaining the flexibility and lightness of the fabric.

[0040] See also Figure 2 , which is a schematic diagram of the structure of the fiber formed by adding heat-conducting metal wires to the fiber provided in this embodiment.

[0041] It can be understood that in practice, due to the twisting of the fiber and the heat-conducting metal wire, different structures (such as short fiber yarn, tow, double-strand wire, multi-strand wire, complex twisted wire, etc.) can be obtained, which further improves the heat conduction efficiency on the one hand, and uses less metal on the other hand, reducing the quality of the fiber.

[0042] See also Figure 3 , which is a structural diagram of a flexible fabric provided in this embodiment in which fibers attached with gunpowder and heat-conducting metal wires are woven in a specific manner, such as "knitted", "woven" or other irregular structures (non-woven).

[0043] It should be noted that the fibers attached to the gunpowder and the heat-conducting metal wires are woven in a specific manner, regardless of the weaving process used, with the goal of weaving them into cloth, which can be single-layer or multi-layer, as long as it meets its actual functional requirements.

[0044] In this embodiment, the size of the flexible fabric is 50*50 cm. The flexible fabric can be burned within 50 ms and generate enough gas. The generated gas is quickly filled into the airbag to expand it.

[0045] It can be understood that this embodiment innovatively combines high-explosion-velocity gunpowder with flexible fibers to provide a gas-generating material that can respond quickly, is lightweight, and is noiseless. By selecting a specific gunpowder material and combustion mechanism, while ensuring rapid expansion, the noise pollution during the deployment of traditional airbags is eliminated. Compared with traditional systems that rely on compressed gas cylinders, the present invention significantly reduces the overall weight of the protective device and simplifies the airbag triggering mechanism.

[0046] The flexible fabric and preparation method provided in the above-mentioned embodiments of the present application use gunpowder with extremely high detonation velocity and no noise, so that the flexible fabric can burn instantly and produce enough gas, which can be filled into the external airbag and expand it, significantly shortening the airbag gas production time, thereby improving the protective effect of the airbag. Compared with the traditional compressed gas cylinder system, the present invention greatly reduces the weight of the bag system, while eliminating the noise when the airbag is deployed, providing users with a more comfortable and safe protection experience. In addition, the flexible design of the fabric enables it to easily adapt to the internal structure of the safety protection device, improving the overall adaptability and reliability of the system.

[0047] Example 2

[0048] See also Figure 4 , is a schematic diagram of the structure of a flexible fabric provided in an embodiment of the present application, the flexible fabric can burn instantly and generate sufficient gas, the gas can be filled into the external airbag and expand it, the flexible fabric has a fabric material as a base 3, and a gunpowder layer 2 is sprayed on the surface of the base 3. The technical solution implemented is described in detail below.

[0049] In this embodiment, an existing high-strength fabric material is selected as the substrate 3, and the substrate 3 has certain flexibility and heat resistance.

[0050] In this embodiment, a spraying technology similar to the production of non-woven fabrics is used to evenly spray finely ground gunpowder on the surface of the substrate 3 to form a gunpowder layer 2.

[0051] It can be understood that by controlling the spraying thickness, the amount of gunpowder can be adjusted to achieve the desired gas production effect.

[0052] Furthermore, a thermally conductive metal film layer 2 is further attached to the surface of the gunpowder layer 2, and the thermally conductive metal film layer 2 can be a copper film or an aluminum film.

[0053] It can be understood that, under the action of the heat-conductive metal film layer 2, on the one hand, it is used to accelerate heat conduction to ensure the rapid combustion of gunpowder; at the same time, the metal film can also provide additional mechanical protection to improve the durability and safety of the fabric.

[0054] It can be understood that this embodiment innovatively combines high-explosion-velocity gunpowder with existing fabric materials as a substrate, and proposes a gas-generating material that can respond quickly, is lightweight, and is noiseless. By selecting a specific gunpowder material and combustion mechanism, while ensuring rapid expansion, the noise pollution during the deployment of traditional airbags is eliminated. Compared with traditional systems that rely on compressed gas cylinders, the present invention significantly reduces the overall weight of the protective device and simplifies the airbag triggering mechanism.

[0055] The flexible fabric and preparation method provided in the above-mentioned embodiments of the present application use gunpowder with extremely high detonation velocity and no noise, so that the flexible fabric can complete combustion and produce sufficient gas in an instant. The gas can be filled into the external safety airbag and expand it, which significantly shortens the airbag gas production time, thereby improving the protective effect of the airbag. Compared with the traditional compressed gas cylinder system, the present invention greatly reduces the weight of the bag system, while eliminating the noise when the airbag is deployed, providing users with a more comfortable and safe protection experience. In addition, the flexible design of the fabric enables it to easily adapt to the internal structure of the protective device, improving the overall adaptability and reliability of the system.

[0056] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A flexible fabric, characterized in that: The flexible fabric can burn instantly and generate enough gas, which can fill the external airbag and expand it, wherein: The flexible fabric is woven from fibers, and gunpowder is attached to the surface of the fibers; or The flexible fabric uses fabric material as a base, and a gunpowder layer is sprayed on the surface of the base.

2. The flexible fabric according to claim 1, characterized in that Metal wires are also added into the fibers, and the heat-conducting metal wires include copper wires or aluminum wires.

3. The flexible fabric according to claim 1, characterized in that A heat-conducting metal film layer is attached to the surface of the gunpowder layer, and the metal film layer includes a copper film or an aluminum film.

4. The flexible fabric according to claim 1, characterized in that The flexible fabric is a single-layer or multi-layer structure.

5. A method for preparing a flexible fabric, characterized in that: The steps include: Weaving the fibers to which the gunpowder is attached into a flexible fabric; or Spraying gunpowder onto a surface of a textile material as a substrate to form a gunpowder layer on the substrate surface; The flexible fabric can burn instantly and generate enough gas to fill the external airbag and inflate it.

6. The method for preparing the flexible fabric according to claim 5, characterized in that: The step of weaving the fibers attached with gunpowder into a flexible fabric also includes the following steps: A heat-conducting metal wire is added to the fiber, and the fiber to which the gunpowder is attached and the heat-conducting metal wire are woven into a flexible fabric, wherein the heat-conducting metal wire comprises a copper wire or an aluminum wire.

7. The method for preparing the flexible fabric according to claim 5, characterized in that: In the step of spraying gunpowder on the surface of the fabric material as the substrate to form a gunpowder layer on the substrate surface, the following steps are also included: A heat-conducting metal film layer is attached to the surface of the gunpowder layer, and the metal film layer includes a copper film or an aluminum film.

8. The method for preparing a flexible fabric according to claim 5, characterized in that: The flexible fabric is a single-layer or multi-layer structure.

9. The method for preparing a flexible fabric according to claim 5, characterized in that: The size of the flexible fabric is 50*50 cm, and the flexible fabric can complete combustion within 50 ms and generate sufficient gas.

10. A safety protection device, characterized in that: The invention comprises the flexible fabric and the safety airbag as claimed in claim 1, wherein the flexible fabric can burn instantly and generate sufficient gas, and the gas can be filled into the safety airbag to make it expand.

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