A folding bracket for protective grilles

Abstract

This utility model relates to the technical field of vehicle protection devices, specifically disclosing a folding bracket for a protective grille. It includes fixed hinges, a locking mechanism, a folding post, and a folding crossbeam. Several fixed hinges are fixedly installed on the vehicle body surface, with a locking mechanism hinged to each hinge. A folding post is installed on the locking mechanism, and a folding crossbeam is provided above the folding post, hinged to the folding post. By providing the locking mechanism and fixed hinges, the protective grille can be folded down when needed by the folding action of the folding post, thereby lowering the position of the folding crossbeam and the protective grille on it. The folding post and locking mechanism are connected by a socket joint, allowing for quick replacement if the folding post, folding crossbeam, or protective grille is damaged.

Description

Technical Field

[0001] This utility model relates to the field of vehicle protection device technology, and in particular to a folding bracket for protective grilles. Background Technology

[0002] With the technological development of modern battlefields, drones and loitering munitions are widely used, and offensive weapons targeting armored vehicles and special vehicles are developing rapidly. In particular, small drones, with their flexible maneuverability, can precisely control the collision angle of munitions, thereby controlling armor-piercing metal jets to directly attack armor at a large angle. Even a small amount of explosive can cause significant damage to armor, posing a strong threat to traditional special vehicles.

[0003] Armor-piercing projectiles work by detonating close to the armor, generating a metal jet that penetrates and damages the armor. The projectile's internal structure and metallic materials create overpressure upon impact, generating a powerful kinetic jet. Close-range detonation and high-angle impact are crucial for enhancing armor-piercing effectiveness. To counteract the damage to vehicle armor from such weapons, existing technologies, such as the composite additional slat armor system platform described in Chinese Patent Publication No. CN119826634A, install protective slats around the vehicle where the armor is weak. The slats detonate the attacking ammunition prematurely, significantly improving protection by interfering with and deflecting the angle of attack of armor-piercing and anti-tank weapons. However, directly adding fixed slats to existing vehicles increases the overall size of the vehicle, reducing its ability to maneuver in narrow passages and complex road conditions. Furthermore, adding slats to maximize the distance between the slats and the vehicle further increases the overall size of the vehicle. Utility Model Content

[0004] The purpose of this invention is to provide a folding bracket for protective grilles to solve the problems existing in the prior art.

[0005] This utility model is implemented by the following technical solution: a folding bracket for protective grilles, including a fixed hinge, a locking mechanism, a folding column and a folding beam; a number of fixed hinges are fixedly installed on the surface of the vehicle body, a locking mechanism is hinged on each fixed hinge, a folding column is installed on the locking mechanism, a folding beam is provided above the folding column, and the folding beam is hinged to the folding column.

[0006] Furthermore, the locking mechanism includes a folding sleeve, a fixed bracket, a locking link, and an eccentric wheel handle; the folding sleeve is hinged to a fixed hinge, a fixed bracket is fixedly installed on the rear side of each fixed hinge, a slot is provided on the fixed bracket, a locking link is hinged to the folding sleeve, the locking link is movably placed in the slot, one end of the locking link is hinged to the folding sleeve, and the other end of the locking link is hinged to an eccentric wheel handle, the eccentric wheel part of the eccentric wheel handle abuts against the rear side of the fixed bracket, and the folding sleeve is inserted into the folding column.

[0007] Furthermore, a through hole is provided on the folding sleeve, and a pin hole corresponding to the position of the through hole is provided on the folding column. A fixing pin plate is sandwiched between the fixing bracket and the folding sleeve. The fixing pin plate includes a base plate and a fixing pin, and the fixing pin passes through the through hole and the pin hole in sequence.

[0008] Furthermore, the fixed bracket includes a vertical plate fixed to the surface of the vehicle body and two slots symmetrically opened on the vertical plate. The two slots are respectively opened on both sides of the folding sleeve, and the two locking links are respectively movably locked in the two corresponding slots.

[0009] The advantages of this utility model are: by setting a locking mechanism and a fixed hinge, the folding column can be folded down when the protective grille needs to be lowered, which can lower the position of the folding beam and the protective grille installed on it. Furthermore, the folding column is connected to the locking structure by a socket, which facilitates quick replacement after the folding column, the folding beam above it, and the protective grille are damaged. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a partial structural diagram of the locking mechanism.

[0012] Figure 3 A partial structural diagram of the mounting and fixing pin plate.

[0013] In the diagram: 1. Fixed hinge; 2. Locking mechanism; 3. Folding column; 4. Folding crossbeam; 5. Fixed pin plate; 201. Folding sleeve; 2011. Through hole; 202. Fixed bracket; 2021. Slot; 203. Locking link; 204. Eccentric wheel handle; 2041. Eccentric wheel part; 301. Pin hole; 501. Base plate; 502. Fixed pin. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1 As shown: A folding bracket for a protective grille includes a fixed hinge 1, a locking mechanism 2, folding posts 3, and a folding crossbeam 4. This bracket connects the protective grille to the vehicle body being protected. Several fixed hinges 1 are fixedly installed on the surface of the vehicle body. A locking mechanism 2 is hinged to each fixed hinge 1. A folding post 3 is installed on the locking mechanism 2. A folding crossbeam 4 is provided above the folding post 3 and is hinged to the folding post 3. When the locking mechanism 2 is locked, it can keep the folding post 3 upright. In this embodiment, four folding crossbeams are fixedly installed on the surface of the vehicle body. Fixed hinge 1, each fixed hinge 1, together with locking mechanism 2, folding column 3 and folding crossbeam 4, form a set of foldable columns. Two sets of foldable columns and one folding crossbeam 4 can form a parallelogram linkage. When locking mechanism 2 is locked, folding column 3 is vertically fixed and folding crossbeam 4 is raised. Protective grilles are fixedly installed on the two folding crossbeams 4, so that the protective grilles are at a certain distance from the vehicle body surface. When it is necessary to lower the protective grilles, simply release each locking mechanism 2 to lower the protective grilles, thereby improving the vehicle's passability.

[0016] like Figure 2As shown, the locking mechanism 2 includes a folding sleeve 201, a fixed bracket 202, a locking link 203, and an eccentric wheel handle 204. The folding sleeve 201 is hinged to the fixed hinge 1. A fixed bracket 202 is fixedly installed on the rear side of each fixed hinge 1. A slot 2021 is provided on the fixed bracket 202. The locking link 203 is hinged to the folding sleeve 201. The locking link 203 is movably placed in the slot 2021. One end of the locking link 203 is hinged to the folding sleeve 201, and the other end of the locking link 203 is hinged to the eccentric wheel handle 204. The eccentric wheel part 2041 of the eccentric wheel handle 204 abuts against the rear side of the fixed bracket 202. The folding sleeve 201 is inserted and connected to the folding column 3. After the folding sleeve 201 is erected parallel to the fixed bracket 202, the locking link 203 is rotated backward to engage the locking link 203 with the slot 2021. At this time, the eccentric wheel part 2041 of the eccentric wheel handle 204 is placed behind the fixed bracket 202. As the eccentric wheel handle 204 rotates, the side with the larger diameter of the eccentric wheel part 2041 gradually turns towards the fixed bracket 202. While the eccentric wheel part 2041 is rotating, it drives the hinge point between the locking link 203 and the eccentric wheel part 2041 away from the fixed bracket 202, that is, it pulls the locking link 203 backward. Through the above working principle, the folding sleeve 201 is pressed against the fixed bracket 202, thereby achieving the effect of mechanical locking.

[0017] like Figure 3 As shown, a through hole 2011 is provided on the folding sleeve 201, and a pin hole 301 corresponding to the position of the through hole 2011 is provided on the folding column 3. A fixing pin plate 5 is sandwiched between the fixing bracket 202 and the folding sleeve 201. The fixing pin plate 5 includes a base plate 501 and a fixing pin 502. The fixing pin 502 passes through the through hole 2011 and the pin hole 301 in sequence. To ensure that the folding sleeve 201 locks the fixing bracket 202, the base plate 501 can be made of polytetrafluoroethylene or other plastic materials with a certain degree of toughness. When the eccentric wheel 2041 rotates, it gradually compresses the base plate 501 sandwiched between the folding sleeve 201 and the fixing bracket 202. After passing the maximum distance point, it rebounds slightly, creating a self-locking effect. When no one moves the eccentric wheel handle 204, the folding sleeve 201 cannot pull the locking link 203 higher than the maximum distance point, thus creating a self-locking effect. At the same time, the fixing pin 502 set on the base plate 501 passes through the through hole 2011 and the pin hole 301, fixing the interlocking folding column 3 to the folding sleeve 201. The folding column 3, the folding crossbeam 4 above, and the protective grille installed on the folding crossbeam 4 are all consumables that will be damaged after intercepting the bomb. Therefore, the folding column 3 and the folding sleeve 201 are designed as detachable structures for easy and quick replacement after damage.

[0018] To improve the stability of the locking and ensure that the force on each component is even, the above structures are all symmetrically arranged. The fixed card seat 202 includes a vertical plate 2022 that is vertically fixed to the surface of the vehicle body and two card slots 2021 that are symmetrically opened on the vertical plate 2022. The two card slots 2021 are respectively opened on both sides of the folding sleeve 201, and the two locking links 203 are respectively movably locked in the two corresponding card slots 2021.

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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.

Claims

1. A folding bracket for a protective grille, characterized in that, It includes a fixed hinge (1), a locking mechanism (2), a folding column (3) and a folding beam (4); several fixed hinges (1) are fixedly installed on the surface of the vehicle body, a locking mechanism (2) is hinged on each fixed hinge (1), a folding column (3) is installed on the locking mechanism (2), and a folding beam (4) is provided above the folding column (3), and the folding beam (4) is hinged to the folding column (3).

2. A folding support for a protective screen according to claim 1, wherein, The locking mechanism (2) includes a folding sleeve (201), a fixed bracket (202), a locking link (203), and an eccentric wheel handle (204). The folding sleeve (201) is hinged to the fixed hinge (1). A fixed bracket (202) is fixedly installed on the rear side of each fixed hinge (1). A slot (2021) is provided on the fixed bracket (202). A locking link (203) is hinged to the folding sleeve (201). The locking link (203) is movably placed in the slot (2021). One end of the locking link (203) is hinged to the folding sleeve (201). The other end of the locking link (203) is hinged to the eccentric wheel handle (204). The eccentric wheel part (2041) of the eccentric wheel handle (204) abuts against the rear side of the fixed bracket (202). The folding sleeve (201) is inserted into the folding column (3).

3. A folding support for a protective screen according to claim 2, wherein, A through hole (2011) is provided on the folding sleeve (201), and a pin hole (301) corresponding to the position of the through hole (2011) is provided on the folding column (3). A fixing pin plate (5) is sandwiched between the fixing bracket (202) and the folding sleeve (201). The fixing pin plate (5) includes a base plate (501) and a fixing pin (502). The fixing pin (502) passes through the through hole (2011) and the pin hole (301) in sequence.

4. A folding support for a protective screen according to claim 2, wherein, The fixed bracket (202) includes a vertical plate (2022) fixed vertically on the surface of the vehicle body and two slots (2021) symmetrically opened on the vertical plate (2022). The two slots (2021) are respectively opened on both sides of the folding sleeve (201), and two locking links (203) are respectively movably locked in the two corresponding slots (2021).

Images