A triangular foldable grid armor structure

Abstract

The present invention provides a triangular foldable grille armor structure, which includes a foldable grille bracket installed on a mounting support and a triangular grille unit installed on the foldable grille bracket, the triangular grille unit includes grille frames arranged side by side; the grille frame is provided with a telescopic shaft mounting hole; the telescopic shaft is passed through the telescopic shaft mounting hole; the triangular grille unit is passed through the telescopic shaft; the triangular grille unit includes a passing shaft and a blocking piece arranged on the outside of the passing shaft, the passing shaft is provided with a through hole along the axial direction, and the passing shaft is sleeved on the telescopic shaft. The present invention has the characteristics of being able to cope with large-angle incoming armor-piercing projectiles and improving vehicle flexibility and passability, while improving the protection efficiency of the grille armor, the battlefield support capability of weapons and equipment, and the ability to effectively cope with multiple threats.

Description

Technical Field

[0001] The invention relates to a triangular foldable grid armor structure, belonging to the technical field of equipment protection. Background Art

[0002] With the development of high-tech equipment, hollow-charge anti-tank ammunition, drones, and loitering munitions are now widely used by powerful adversaries on the modern battlefield. "Top-attack" strikes, characterized by small-group, multi-path, and multi-point attacks, have become an increasingly important offensive method on the modern local battlefield. The survival environment for various types of weapons, equipment, and military facilities on the battlefield is becoming increasingly harsh. In particular, a single grenade carried by a civilian drone can pose a significant threat to military installations, and a single rocket can disable an armored vehicle. Improving the protective capabilities of weapons, equipment, and military facilities on the battlefield has become a pressing issue.

[0003] The design concept of the grid armor is to protect against threats from the enemy by using statistical probability. It is specially developed to resist attacks from armor-piercing projectiles. It has a light weight, simple structure, good manufacturing process, and high protection performance against armor-piercing projectiles. The defensive mechanism of grid armor can be divided into the following points: (1) Grid armor can destroy the standard firing height of armor-piercing projectiles. When armor-piercing projectiles hit the grid armor, they will detonate in advance. The grid armor maintains a certain distance from the main armor, causing the metal jet of the armor-piercing projectile to break, stretching and interfering with the metal jet, thereby weakening the armor-piercing power and losing the best armor-piercing ability; (2) Grid armor can damage the body and fuse of the incoming armor-piercing projectile, preventing it from exploding normally. The tiny grid can jam the armor-piercing projectile with a caliber larger than the grid spacing, tearing off the wind cap of the armor-piercing projectile, cutting off the wire connecting the electric detonator at the bottom of the projectile, and making the piezoelectric fuse at the tip of the warhead unable to touch the main armor and detonate; (3) Even if the armor-piercing projectile detonates successfully, the grid will block the armor-piercing ammunition hood, causing the hood to distort and deform, affecting the formation of a complete armor-piercing jet and weakening the armor-piercing ability of the armor-piercing projectile.

[0004] Grille armor is simple, practical, and easy to install. It can be designed and manufactured using existing technologies and processes, eliminating the need for significant R&D and procurement costs. It offers a high cost-effectiveness ratio. Once finalized, it can be quickly deployed to various types of in-service equipment, protecting armored equipment worth millions or even tens of millions of yuan from effective anti-tank weapon attacks. In anticipation of future high-tech localized wars, adding grille armor to equipment enhances battlefield survivability and holds significant military value. However, grille armor also has significant drawbacks: ① Because it acts like a "birdcage" on the exterior of an armored vehicle, it reduces its flexibility and maneuverability. ② Grille armor has a certain probability of failing to effectively protect, especially against high-angle HEAT rounds, where its protection is virtually zero. This is the primary reason grille armor is also known as "probabilistic armor." Overall, existing grille armor offers approximately 50% protection against HEAT rounds. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a triangular foldable grille armor structure that can cope with armor-piercing projectiles coming from large angles and improve vehicle flexibility and passability, while improving the protective efficiency of the grille armor, the battlefield support capability of weapons and equipment, and the ability to effectively respond to multiple threats.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A triangular foldable grille armor structure comprises a foldable grille bracket mounted on a mounting support and a triangular grille unit mounted on the foldable grille bracket.

[0008] The triangular grille unit includes grille frames arranged side by side;

[0009] The grid frame is provided with a retractable shaft mounting hole;

[0010] The retractable shaft is installed in the retractable shaft installation hole;

[0011] The retractable shaft is provided with a grille unit.

[0012] Furthermore, the grille unit includes a mounting shaft and a blocking piece arranged on the outside of the mounting shaft, the mounting shaft is provided with a through hole along the axial direction, and the mounting shaft is sleeved on the telescopic shaft.

[0013] Furthermore, there are three blocking pieces, and the blocking pieces are evenly distributed on the outside of the wearing shaft.

[0014] Furthermore, the inner core of the baffle is made of silicon carbide ceramic material, and the outer side is covered with RHA armor steel.

[0015] Furthermore, the foldable grid support includes a connecting rod connecting the mounting support and the upper or lower end of the grid frame, and a folding support rod with one end connected to the upper end of the mounting support, and the other end of the folding support rod is connected to the lower end of the grid frame.

[0016] Furthermore, one end of the folding support rod is hinged to the lower end of the grid frame, and the other end of the folding support rod is clamped to the upper end of the mounting support.

[0017] The beneficial effects of adopting the above technical solution are:

[0018] The grille armor unit of the present invention abandons the traditional sheet-like structure and adopts a novel triangular pyramid structure. Because it can rotate around a telescopic axis, when facing the threat of a shaped charge munition firing at a large angle, the grille unit can reduce the impact force with the shaped charge fuze, preventing the fuze from triggering, thereby effectively improving the grille armor's ability to withstand the threat of shaped charge munitions firing at large angles.

[0019] The novel grid unit material of the present invention adopts RHA-silicon carbide ceramic layered composite material, wherein the first and third layers are made of RHA armor steel and the middle second layer is made of ceramic material. The traditional grid armor material is upgraded from RHA armor steel to RHA-silicon carbide ceramic sandwich composite material, which not only retains the good plasticity of RHA armor steel but also reflects the stiffness and hardness of armor ceramic, and can effectively deal with the threat of high-speed ammunition.

[0020] The new grille unit of the present invention utilizes a "grill armor unit - retractable shaft assembly - foldable grille support" installation and connection method. Its features include: 1. The grille armor structure unit is modular; 2. The grille armor structure unit can be quickly disassembled and installed, facilitating equipment maintenance; and 3. The grille unit can rotate around the retractable shaft assembly, achieving high-performance protection. The present invention transforms the connection between the grille unit and the grille frame from a welded connection to a modular installation method. By pressing the ends of the retractable shaft, the retractable shaft can be extended and retracted, allowing for convenient installation and removal of the new grille armor unit in conjunction with the grille frame. This installation method improves the ease of maintenance and equipment maintenance of the grille armor.

[0021] The grid support structure of this invention features a foldable design. The grid frame integrates the new grid armor structure into the armored vehicle through a foldable structure. The grid armor can be quickly retracted in the event of an obstacle. After installation, the original combat performance of the armored vehicle is not affected, maximizing the vehicle's maneuverability and passability. The grid armor is used to protect the front, flanks, rear, engine, and turret roof of the armored vehicle, enhancing protection and achieving all-round protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the grid armor structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the grid unit structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the grid frame structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the telescopic shaft structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the folding support rod structure of the present invention;

[0028] Among them, 1. grille frame, 101. telescopic shaft mounting hole, 2. telescopic shaft, 3. grille unit, 301. wearing shaft, 302. baffle, 4. connecting rod, 5. folding support rod. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] As attached Figure 1-6 As shown, this embodiment provides a triangular foldable grille armor structure, which includes a foldable grille bracket installed on a mounting support and a triangular grille unit installed on the foldable grille bracket, the triangular grille unit includes grille frames 1 arranged side by side; a telescopic shaft mounting hole 101 is provided on the grille frame 1; a telescopic shaft 2 is passed through the telescopic shaft mounting hole 101; a grille unit 3 is passed through the telescopic shaft 2, the grille unit 3 includes a passing shaft 301 and a blocking piece 302 arranged on the outside of the passing shaft 301, the passing shaft 301 is provided with a through hole along the axial direction, the passing shaft 301 is sleeved on the telescopic shaft 2, there are three blocking pieces 302, and the blocking pieces 302 are evenly distributed on the outside of the passing shaft 301. The unit structure adopted by the grille unit of the present invention abandons the traditional sheet structure. Since it can rotate around the telescopic axis, when facing the threat of large-angle shooting of shaped charge munitions, the grille unit can reduce the impact force between it and the shaped charge munition fuse and avoid triggering the fuze, thereby effectively improving the grille armor's ability to face the threat of large-angle shooting of shaped charge munitions.

[0031] The inner core of the baffle 302 is made of silicon carbide ceramic material and its outer side is covered with RHA armor steel. It upgrades the traditional grid armor material from RHA armor steel to RHA-silicon carbide ceramic sandwich composite material. This solution not only retains the good plasticity of RHA armor steel, but also reflects the stiffness and hardness of armor ceramics, and can effectively deal with the threat of high-speed ammunition.

[0032] The foldable grille support includes a connecting rod 4 that connects a mounting support to either the upper or lower end of a grille frame 1, and a folding strut 5 having one end connected to the upper end of the mounting support. The other end of the folding strut 5 is connected to the lower end of the grille frame 1. One end of the folding strut 5 is hinged to the lower end of the grille frame 1, and the other end of the folding strut 5 is clipped to the upper end of the mounting support. Specifically, the upper side of the foldable grille support is connected to the mounting support via one end of the connecting rod and to the grille frame via the other end. The lower side of the foldable grille support is also connected to the mounting support via another connecting rod at one end and to the grille frame at the other end. The grille frame is provided with a folding strut 5 that allows the foldable support to be adjusted in terms of expansion and folding (folding is achieved by releasing the clipped end and expanding it by engaging the clipped end). When engaged, a triangular stable support structure is formed. One end of the folding strut is connected to the grille frame (lower end) and one end is connected to the mounting support (upper end). The mounting support is fixed to the armored vehicle.

[0033] The folding structure of the present invention is not limited to the above-mentioned structural form. For example, if a form similar to a hydraulic rod in a car trunk is adopted, as long as the folding and propping up of the grille support can be achieved, it should be understood to be within the scope of protection of the present invention.

[0034] The specific usage principles are as follows:

[0035] Traditional grille armor uses welding to connect its sheet-like grid units to the grille frame. This design changes the connection between the grille units and the grille frame from welding to a modular installation method. By pressing the ends of the retractable shaft, the retractable shaft can be extended and retracted, thereby conveniently cooperating with the grille frame to complete the installation and removal of the new grille armor unit. This installation method improves the maintenance convenience and equipment security of the grille armor. The present invention no longer uses welded steel wide strips, and the appropriate spacing is calculated based on the size of the projectile to be protected. This solution can enhance the defense capability against oblique rockets with large angles of incidence, and will significantly increase the success rate of interception. The grille frame integrates the new grille armor structure into the armored vehicle through a folding structure. If an obstacle is encountered, the new grille armor can be quickly folded up. After installation, the original combat performance of the armored vehicle will not be affected, and the original vehicle's maneuverability and passability are maximized. The grille armor is used to protect the front, flanks, rear, engine and turret top of the armored vehicle, which can improve the protection performance and achieve all-directional protection. The present invention improves the performance of resisting large-angle penetration of shaped-charge ammunition; while retaining its strength, it increases the rigidity of the armor grille, which can effectively deal with the threat of high-speed projectiles; and the convenient installation method improves the convenience of battlefield maintenance of armored vehicles and equipment support.

[0036] The grille armor of this invention features a modular design with grille units that adhere to the principle of modular interchangeability and meet interchangeability requirements. It is compatible with the same aircraft model or equipment type, and new grille armor can be selected based on the mission nature and threat level. If damaged, the grille armor of this invention can be quickly installed and removed by the crew using onboard tools during maneuvering, transportation, or within a combat zone, without the need to return to an armory or repair base. Equipped with a quick-release device, if a module of the new grille armor structure is damaged, it can be quickly replaced without the need for additional equipment. This offers advantages such as high combat effectiveness and ease of battlefield operation.

[0037] The lattice armor structure design of this invention creates a lattice "golden bell" that "defends the body" and "protects the crown." Taking a certain type of main battle tank currently in service as an example, the turret is relatively small, and components such as the sighting and observation system, electro-optical countermeasures system, crew hatch, anti-aircraft machine gun, ejection port, and communications antenna occupy a considerable portion of the turret's top area. Even with the installation of top-protection reactive armor, the area that can be protected is still limited. The lattice armor can prevent direct attack from anti-tank weapons on the turret top, protect the ammunition inside the turret, and reduce the possibility of secondary detonation. This has important military significance for improving the battlefield survivability and combat effectiveness of weapons and equipment facing threats such as enemy shaped-charge munitions, drones, and cruise missiles.

[0038] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A triangular foldable grid armor structure, characterized in that: It includes a foldable grille bracket installed on a mounting support and a triangular grille unit installed on the foldable grille bracket. The triangular grid unit comprises grid frames (1) arranged side by side; The grid frame (1) is provided with a telescopic shaft mounting hole (101); The telescopic shaft mounting hole (101) is provided with a telescopic shaft (2); The retractable shaft (2) is provided with a grid unit (3); The grille unit (3) comprises a mounting shaft (301) and a blocking piece (302) arranged outside the mounting shaft (301); the mounting shaft (301) is provided with a through hole along the axial direction; the mounting shaft (301) is sleeved on the telescopic shaft (2); There are three blocking pieces (302), and the blocking pieces (302) are evenly distributed outside the wearing shaft (301).

2. The triangular foldable grid armor structure according to claim 1, characterized in that: The inner core of the baffle (302) is made of silicon carbide ceramic material, and the outer side is covered with RHA armor steel.

3. The triangular foldable grid armor structure according to claim 1, characterized in that: The foldable grid support comprises a connecting rod (4) connecting the mounting support and the upper end or lower end of the grid frame (1) at the same time, and a folding support rod (5) having one end connected to the upper end of the mounting support, and the other end of the folding support rod (5) connected to the lower end of the grid frame (1).

4. The triangular foldable grid armor structure according to claim 3, characterized in that: One end of the folding support rod (5) is hinged to the lower end of the grid frame (1), and the other end of the folding support rod (5) is clamped to the upper end of the mounting support.

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