Multiband camouflage net

Abstract

The multi-band camouflage net comprises multi-band cut-flower decorative cloth (1) arranged on the surface layer, a radar absorbing base net (2) arranged on the middle layer and radar absorbing foam (3) arranged on the bottom layer. The multi-band cut-flower decorative cloth (1), the radar absorbing base net (2) and the radar absorbing foam (3) are the same in size and are connected through fixing units arranged on the edges to form a whole of a multi-layer structure. Wherein the multiband cut-flower decorative cloth (1) is obtained by cutting and binding visible light-radar composite stealth coated fabric, and cut flowers comprise at least two combinations of crescent cut flowers, U-shaped cut flowers, V-shaped cut flowers and W-shaped cut flowers; the visible light-radar composite stealth coated fabric is metal wire blend fiber cloth with a coating on the surface, and the surface coating comprises a radar absorbent; camouflage patterns formed on the surface of the multiband cut-flower decorative cloth (1) are consistent with typical ground feature background types.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of camouflage stealth technology, in particular to a multi-band camouflage net. BACKGROUND

[0002] The camouflage net is used for camouflage protection of various weapons and equipment, fixed targets, military facilities and other military targets.

[0003] The traditional camouflage net has certain disadvantages in use: the existing radar wave detection frequency is wide, often including L, S, C, Ka, Ku and millimeter wave and other multiple bands, the traditional multi-band camouflage net often uses single-layer structure of fiber cloth added with metal wires to carry out cutting and processing on the surface decoration cloth, and the radar wave is scattered instead of absorbed, and after netting, the Ku, Ka, C, X and other high frequency bands with shorter wavelength have certain radar wave scattering effect, which plays a role of attenuation, but the effect is poor for L and S bands with longer wavelength. The multi-band camouflage net with good attenuation effect for Ku, Ka, X, S and L bands has large weight and complex structure, and the production cost is high, which brings greater challenge to the survival protection of military equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a multi-band camouflage net, which has good radar wave absorption effect, wide protection band and can realize optical-infrared-radar full-band camouflage stealth.

[0005] The technical scheme of the utility model is a multi-band camouflage net, which comprises multi-band cutting decoration cloth arranged on a surface layer, a radar absorption base net arranged on an intermediate layer and a radar wave absorption foam arranged on a bottom layer; the multi-band cutting decoration cloth, the radar absorption base net and the radar wave absorption foam have the same size, and the three are connected to form an integrated multi-layer structure through fixing units arranged on edges.

[0006] Further, the multi-band cutting decoration cloth is obtained by cutting and binding the visible light-radar composite stealth coating fabric, and the cutting includes at least two combinations of crescent cutting, U-shaped cutting, V-shaped cutting and W-shaped cutting.

[0007] Further, the visible light-radar composite stealth coating fabric is a metal wire blended fiber cloth with a coating layer on the surface, and the coating layer comprises a radar absorber; the camouflage pattern formed on the surface of the multi-band cutting decoration cloth is consistent with the typical ground object background type.

[0008] Further, the radar absorption base net is a 75D-400D fiber woven anti-hooking mesh fabric with a radar wave absorption coating layer arranged on the surface.

[0009] Further, the mesh shape of the anti-hooking mesh fabric is a square, and the mesh side length is 1mm-5mm.

[0010] Further, the radar-absorbing foam comprises a functional foam plate and wedge-shaped protrusions uniformly distributed on the surface of the functional foam plate, and the radar-absorbing foam is composed of a radar absorber.

[0011] Further, the functional foam plate has a thickness of 5-30 mm, the wedge-shaped protrusions have a height of 5-15 mm and a row-column spacing of 5-20 mm, the radar absorber accounts for 30-60% of the total mass of the radar-absorbing foam, and the radar-absorbing foam has an area density of 500-1500 g / m 2 ; and the radar-absorbing foam is further composed of one of polyvinyl chloride foam, polyurethane foam and polymethacrylimide foam.

[0012] Further, the fixing unit comprises one or a combination of a cable tie, a binding rope, a sewing thread or a fixing needle.

[0013] Further, the camouflage device has a square, rectangular or irregular shape.

[0014] Compared with the prior art, the technical advancement of the utility model is:

[0015] 1. The utility model is made of a metal wire blended fiber cloth with a functional coating on the surface (the coating comprises a radar absorber), a multi-band cut flower decorative cloth, a hooking-preventing mesh cloth woven by fibers containing a radar absorber in the surface coating and a wave-absorbing foam structure, etc. are combined, a technical approach of converting radar waves into heat energy is used to reduce the radar characteristics of the surface of an object, the full-band radar waves can be well attenuated, which is different from the traditional camouflage net which only reduces the radar characteristics of part of the waves by scattering characteristics, and the radar scattering effect of the traditional multi-band camouflage net is greatly affected by factors such as a satellite detection angle and a camouflage net erection mode.

[0016] 2. The utility model adopts a foam plate as the bottom layer, which can be well attached to the equipment or facilities to be camouflaged. The camouflage net decorative cloth adopts a light and high-strength metal wire blended polyester cloth as a base material, and a high-strength fiber yarn is woven into a hooking-preventing base net, and a low-density and large specific surface area material such as silicon carbide fiber, graphite and superconducting carbon black is added to the foam as an absorber of the bottom wave-absorbing foam, so that the camouflage net has full-band camouflage and stealth while having a light mass per unit area, is more convenient to use, and more importantly, can have optical-infrared-radar and millimeter wave full-band camouflage and stealth functions,

[0017] 3. The multi-band cut flower decorative cloth of the surface layer of the utility model adopts different cut flower shapes combination, on the one hand, change the regular optical appearance, infrared target characteristic which traditional camouflage net covers target because cut flower style is uniform, on the other hand, when radar wave hits the multi-band cut flower decorative cloth of the surface layer, first, the surface functional coating in the multi-band cut flower decorative cloth of the surface layer will scatter and absorb part of radar wave energy, the middle layer is provided with radar wave absorbing coating layer square hooking prevention mesh eye cloth, can further absorb radar wave, make RCS reduce, the radar wave that penetrates to the bottom layer is absorbed by the bottom wave absorbing foam, make it be consumed again, reach the effect of multiple attenuation, realize the effect of optical-infrared-radar and millimeter wave full-band camouflage stealth. BRIEF DESCRIPTION OF DRAWINGS

[0018] These and / or other aspects and advantages of the utility model will become more apparent and more readily appreciated from the following detailed description of the utility model, taken in conjunction with the accompanying drawings in which:

[0019] Figure 1 It is the whole cross section structure schematic diagram of a multi-band camouflage net in the utility model embodiment;

[0020] Figure 2 It is the shape structure schematic diagram of a multi-band camouflage net radar absorbing base web in the utility model;

[0021] Figure 3 It is the shape schematic diagram of a multi-band camouflage net radar wave absorbing foam in the utility model embodiment. DETAILED DESCRIPTION

[0022] In order to make the person skilled in the art better understand the utility model, the utility model is further explained in detail below in conjunction with the drawings and specific embodiments.

[0023] Embodiment 1

[0024] A multi-band camouflage net, its structure as shown in Figure 1 It includes the multi-band cut flower decorative cloth 1 of surface layer (the side far away from the surface of the equipment that is camouflaged), the radar absorbing base web 2 of middle layer and the radar wave absorbing foam 3 of bottom layer, the shape structure schematic diagram of radar absorbing base web 2 as shown in Figure 2 Radar wave absorbing foam 3 as shown in Figure 3

[0025] ​In the embodiment, the multi-band cut flower decorative cloth 1 of the surface layer is a multi-band cut flower decorative cloth designed according to the size of the vehicle, and the cut flower mode adopts a mixed combination of U-shaped cut flowers and W-shaped cut flowers. In actual application, a multi-band camouflage net of any shape can be made according to requirements. The multi-band cut flower decorative cloth 1 is made of a metal wire blended fiber cloth (the fiber cloth has a coating layer, and the coating layer contains optical stealth coating and radar absorber), and the cut flower pattern is pulled open through a cutting process (at least two of the cutting modes of the crescent-shaped cut flower, the U-shaped cut flower, the V-shaped cut flower and the W-shaped cut flower are combined to reduce the regular target characteristics of the surface) and a binding process to achieve a flower turning effect, thereby achieving the functions of radar scattering and absorption; the optical-infrared stealth material is also contained in the surface coating layer of the metal wire blended fiber cloth, and the typical ground object background color is consistent with the camouflage pattern formed after the fiber cloth is cut, spliced and cut, such as the deep green, light green and sandy color camouflage pattern of the typical forest ground background; or the camouflage pattern formed by the typical colors in the desert background 3-4.

[0026] The radar absorbing base net 2 of the middle layer is a high-strength nylon fiber knitted anti-hooking radar mesh cloth with a wave-absorbing coating layer on the surface, and the size is 3mm*3mm;

[0027] The wave-absorbing foam 3 of the bottom layer is made of polyurethane foam with added absorber, and the wave-absorbing foam 3 includes a functional foam plate and a sharp wedge-shaped protrusion on the surface of the functional foam plate. The thickness of the functional foam plate is 10mm; the size of the sharp wedge-shaped protrusion is 5mm, and the row and column spacing is 10mm; the amount of absorber added is 45% of the total mass of the wave-absorbing foam 3, and the areal density of the wave-absorbing foam 3 is 750g / m 2 .

[0028] The four edges of the multi-band cut flower decorative cloth 1, the radar absorbing base net 2 and the wave-absorbing foam 3 of the embodiment are connected together by a fixing unit to form a multi-layer stacked overall structure.

[0029] The fixing unit is a sewing thread for sewing the multi-band cut flower decorative cloth 1, the radar absorbing base net 2 and the radar wave-absorbing foam 3, and a nylon thread with a diameter of 0.8mm is selected. In actual application, the fixing unit can also be selected from a binding tape, a binding belt, a binding rope, a fixing needle and the like.

[0030] The above has described the embodiments of the utility model, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A multi-band camouflage net, characterized in that, It includes a multi-band cut-flower decorative fabric (1) on the surface, a radar-absorbing base mesh (2) in the middle layer, and a radar-absorbing foam (3) at the bottom layer; The multi-band cut decorative fabric (1), radar absorbing base mesh (2) and radar absorbing foam (3) are the same size, and the three are connected by fixed units set at the edge to form a multi-layer structure.

2. The multi-band camouflage net as described in claim 1, characterized in that, The multi-band cut-flower decorative fabric (1) is obtained by cutting and binding visible light-radar composite stealth coating fabric, wherein the cut flowers include at least two combinations of crescent-shaped cut flowers, U-shaped cut flowers, V-shaped cut flowers, and W-shaped cut flowers.

3. The multi-band camouflage net as described in claim 2, characterized in that, The visible light-radar composite stealth coating fabric is a metal wire blended fiber cloth with a coating on the surface, and the surface coating is a coating containing radar absorber; the camouflage pattern formed on the surface of the multi-band cut floral decorative cloth (3) is consistent with the typical ground feature background type.

4. The multi-band camouflage net as described in claim 1, characterized in that, The radar absorbing base mesh (2) is a 75D-400D fiber woven anti-snagging mesh cloth with a radar absorbing coating layer on its surface.

5. The multi-band camouflage net as described in claim 4, characterized in that, The anti-snagging mesh fabric has a square mesh shape with a side length of 1mm-5mm.

6. The multi-band camouflage net as described in claim 1, characterized in that, The radar absorbing foam (3) includes a functional foam board and wedge-shaped protrusions evenly distributed on the surface of the functional foam board. The radar absorbing foam (3) is a foam containing a radar absorber.

7. The multi-band camouflage net as described in claim 6, characterized in that, The thickness of the functional foam board is 5mm-30mm; the height of the wedge-shaped protrusions is 5mm-15mm, and the row and column spacing is 5mm-20mm; the amount of radar absorber added is 30-60% of the total mass of the radar absorbing foam (3); the areal density of the radar absorbing foam (3) is 500-1500g / m³. 2 The radar absorbing foam (3) is one of polyvinyl chloride foam, polyurethane foam and polymethacrylamide foam.

8. The multi-band camouflage net as described in claim 1, characterized in that, The fixing unit includes one or a combination of cable ties, binding ropes, sewing thread, or fixing needles.

9. The multi-band camouflage net as described in claim 1, characterized in that, The camouflage device unfolds into a square, rectangle, or one of various irregular shapes.

Images