Container for a deployable anti-drone net

Abstract

The utility model relates to devices for protection against aircraft, specifically to a container for a deployable anti-drone net. The container contains an anti-drone net with weights and a spacer separating the net from the weights. The container is shaped like a cylindrical cup, the surface of which, from the open edge to the bottom, has cuts at regular intervals along the cylinder's axis. These cuts divide the cylindrical surface of the container into petals, each of which is attached to the bottom. These cuts are designed such that, upon firing, after exiting the barrel, the container petals open under the influence of centrifugal force and air resistance, ensuring that the net maintains its deployed (open) shape as it moves toward the firing direction until it impacts the target. 5 ill.

Description

[0001] The utility model relates to devices for protection against aircraft (drones).

[0002] An anti-drone rod munition is known, characterized in that it contains a streamlined housing, the internal cavity of which is filled with a damping layer in the form of foam made of polymaterials, in the center of the cavity a charge with a built-in detonator of an explosive substance is installed, on the surface of which, through a layer of damping layer, a structure is placed from a set of rods laid in layers so that each layer forms a separate ring or radial connection, the rings are connected by radial rods, and between each layer of rods that form rings, there are intermediate layers of rods that form radial connections between the rings, the layer of rods that forms a ring, located directly closest to the explosive charge, forms a ring of the smallest diameter, the outer layer, located closest to the housing, forms a ring of the maximum diameter [RU 233926 U1, IPC F42B 12 / 56, publ. [25.02.2025].

[0003] A known ammunition for a grenade launcher against unmanned aerial vehicles, according to a patent, contains a tail section rigidly interconnected by an axisymmetric element, including a propellant charge with a primer cap, and a head section provided with a guide belt for twisting in the barrel of a grenade launcher and including a trapping net in a laying with peripheral metal elements uniformly distributed and secured to it, as well as an expelling device, with the possibility of a dome-shaped opening of the trapping net, due to the said expelling device and metal elements, with the midsection of the opened trapping net, exceeding the midsection of the ammunition, wherein the expelling device can be made in the form of through windows in the streamlined frontal part of the head section of the ammunition, with the possibility of an oncoming air flow under dynamic pressure entering through them and exiting together with the trapping net with metal elements from the head section into the said annular gap [RU 2823620 C1,IPC F42B 12 / 56, published 02 / 25 / 2025].

[0004] The creation of the utility model solves the technical problem of expanding the arsenal of technical means by developing a device for protection against aircraft (drones).

[0005] The technical result consists of ensuring the successful exit of the net from the container and its deployment after firing. This is achieved by the container for the deployable anti-drone net. The container contains an anti-drone net with weights and a gasket that separates the net from the weights. The container is shaped like a cylindrical cup. The surface of the container, from the open edge to the bottom, is cut at regular intervals along the axis of the cylinder. These cuts divide the cylindrical surface of the container into petals, each of which is attached to the bottom. Upon firing, after exiting the barrel, the petals of the container wall open under the influence of centrifugal force and air resistance.

[0006] Fig. 1 schematically shows the design of the container, Fig. 2 shows the opened container, Fig. 3 - a loaded cartridge with a net, Fig. 4 shows the direction of forces inside the container after leaving the barrel, Fig. 5 schematically shows the direction of the net after full opening (deployment). The numbers in Figs. 1-5 indicate: 1 - bottom of the cylindrical container, 2 - cuts (notches), 3 - petals, 4 - net, 5 weights (shrapnel), 6 - gasket, 7 - container with net, 8 - cartridge case, 9 - wad, 10 - gunpowder, 11 - primer, 12 - buckshot, 12 - drone, 14 - axis of rotation of the net.

[0007] The container for the deployable anti-drone net is designed as a cylindrical cup. Its surface, from the open end to the bottom 1, is slit (notches) 2 at regular intervals along the cylinder's axis. These notches divide the container into petals 3, which, upon firing, open under the influence of centrifugal force and air resistance after exiting the barrel. The container can be made of plastic or a similar material that ensures easy destruction.

[0008] Container equipment for a fired anti-drone net.

[0009] Before use, the anti-drone net 4 is placed in a container, which is loaded into a cartridge with a powder charge or into the barrel of an air gun for firing towards an aircraft (drone).

[0010] Net 4 is made from durable threads (metal, Kevlar, carbon fiber, etc.) knotted or fused together to withstand the impact loads of firing, deployment, and impact with a target (drone). Metal weights (shrapnel) 5 are attached to the net at regular intervals around the perimeter.

[0011] Net 4 is placed in the container as follows. Net 4, without any cargo, is placed on the bottom of container 1. A spacer 6 is placed on top of it to prevent it from unrolling in the container and to separate it from cargo 5 (shrapnel). Cargo 5 is placed in the same order as it appears relative to one another in the unrolled net 4. This ensures that cargo 5 does not become entangled in net 4 when exiting the container, but rather that it unfolds completely.

[0012] To organize the position of the load 5 in the charge, the gasket 6 can have the form of cylinders attached to each other, the difference in radius in which will be equal to the diameter of the buckshot.

[0013] After the charge leaves the barrel and the container, the gasket 6 will come off the buckshot and, passing through the mesh of the net 4, will come off it.

[0014] When using powder charges, the container is loaded into the cartridge like a regular shot charge.

[0015] To successfully exit the net 4 from the container and deploy it after firing, the container must be rotated by the charge around its axis (its center of gravity). This rotation can be achieved either within the barrel, using rifling or using the energy of propellant gases to impart rotation, or after exiting the barrel, using air resistance.

[0016] As the projectile spins around its axis, the buckshot experiences a centrifugal force directed away from the center of rotation, which is directly related to the buckshot's mass and rotational speed. As it moves inside the barrel, this force is directed toward the walls of the container and transmitted to the inner wall of the barrel.

[0017] After the container exits the barrel, petals 3 of the container will open under the centrifugal force of the shot, increasing the container's area relative to the direction of travel. Due to its low mass and large area, the container will lose speed and lag behind the projectile, and the net will exit the container in the direction of the shot. The shrapnel, under the influence of centrifugal force, will deploy the net, which, rotating around its center of gravity, will continue to move in the direction of the shot. The rotational speed of the net will decrease as it deploys (opens).

[0018] After meeting with an aircraft (drone), the threads of the net will hit its parts, the net will wrap around the aircraft, and, hitting its parts, destroy them.

[0019] The container for the anti-drone net is unique in that the net maintains its deployed (open) shape while moving toward the target due to rotation around its center of gravity. Rotation of the charge around its axis allows the net to successfully separate from the container where it was placed before firing, while the weights attached to the outer edge of the net remain in their relative positions, which is essential for the net to fully deploy after the charge leaves the weapon's barrel.

Images