A new type of anti-collision automobile bumper lower guard plate

Abstract

This utility model discloses a novel anti-collision car bumper lower guard plate, comprising: a lower guard plate body with outwardly extending V-shaped protective plates on both sides of the bottom of the lower guard plate body; outwardly extending arc-shaped anti-collision plates on both sides of the V-shaped protective plates; inwardly extending arc-shaped limiting plates at the bottom of the lower guard plate body, V-shaped protective plates, and arc-shaped anti-collision plates; an arc-shaped first mounting plate on the inner side of the arc-shaped limiting plate; and an outwardly extending second mounting plate on the top of the lower guard plate body. The second mounting plate has a figure-eight shaped limiting groove and evenly spaced irregularly shaped mounting plate assemblies. This utility model, through its multi-level, multi-angle protection design of the V-shaped protective plates, arc-shaped limiting plates, first mounting plates, and second mounting plates, effectively disperses and absorbs collision energy, preventing the guard plate from tearing over a large area or penetrating the chassis and damaging core components upon impact, significantly improving the vehicle's driving safety and passability.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts, specifically, it relates to a novel anti-collision lower guard plate for automotive bumpers. Background Technology

[0002] The underbody protection plate for a car bumper is an important protective component installed under the front bumper and at the bottom of the engine compartment. Its main function is to prevent damage to critical components such as the engine oil pan and transmission caused by stones and hard objects splashed from the road during driving. At the same time, it also plays a role in preventing bottoming out, turbulence, and optimizing aerodynamics in complex road conditions.

[0003] Existing automotive bumper underbody protection plates mostly use flat panels or simple bends, directly bolted to the vehicle body. This traditional structure has significant drawbacks: First, its impact resistance is limited. In low-speed collisions or scrapes against road obstacles, the impact force is directly transmitted to the mounting point, easily causing the plate to deform, tear, or even detach, rendering it ineffective. Second, traditional flat panel structures lack effective energy guidance and dispersion mechanisms when subjected to frontal or lateral impacts. The impact force is concentrated at a single point, easily causing the plate to dent inwards, potentially damaging delicate components such as the engine that it is meant to protect. Furthermore, the connection method between existing underbody protection plates and the vehicle body is relatively simple, making them prone to loosening under complex stress conditions, producing abnormal noises and affecting the driving experience.

[0004] Therefore, there is an urgent need in this field for a vehicle bumper underbody protection plate with a more optimized structure, superior collision protection performance, and more secure installation to cope with increasingly complex urban and light off-road driving environments. Utility Model Content

[0005] In view of this, the technical problem to be solved by this utility model is to provide a new type of anti-collision car bumper lower guard plate to solve the problems of traditional car bumper lower guard plates being easily deformed and torn in collisions, having insufficient protection and unstable installation. Through a multi-level guiding and reinforcing structure, the impact resistance and installation stability are significantly improved.

[0006] To solve the above-mentioned technical problems, this utility model discloses a novel anti-collision car bumper lower guard plate, comprising: a lower guard plate body, V-shaped protective plates extending outward from the bottom of both sides of the lower guard plate body, arc-shaped anti-collision plates extending outward from both sides of the V-shaped protective plates, arc-shaped limiting plates extending inward from the bottom of the lower guard plate body, the V-shaped protective plates and the arc-shaped anti-collision plates, arc-shaped first mounting plates on the inner side of the arc-shaped limiting plates, and a second mounting plate extending outward from the top of the lower guard plate body. The second mounting plate has a figure-eight shaped limiting groove and a group of evenly spaced irregularly shaped mounting plates.

[0007] According to one embodiment of the present invention, mounting holes are provided on the lower guard plate body and the first mounting plate.

[0008] According to one embodiment of the present invention, the number of the above-mentioned limiting grooves is seven sets.

[0009] According to one embodiment of the present invention, the above-mentioned irregular mounting plate assembly includes an irregular mounting plate, which corresponds to the automotive connecting component.

[0010] According to one embodiment of the present invention, the included angle of the above-mentioned V-shaped protective plate is 120°-150°, and the thickness of the V-shaped protective plate is 1.2-1.5 times the thickness of the lower protective plate body.

[0011] According to one embodiment of the present invention, the radius of the arc surface of the arc-shaped anti-collision plate is 80-120mm, and the end of the arc-shaped anti-collision plate away from the V-shaped protective plate is provided with a rounded corner transition structure with a rounded corner radius of 5-10mm.

[0012] Compared with the prior art, the present invention can achieve the following technical effects: Through the multi-level, multi-angle protection design of V-shaped protective plate, arc-shaped limiting plate, first mounting plate and second mounting plate, the collision energy is effectively dispersed and absorbed, preventing the protective plate from tearing over a large area or penetrating the chassis and damaging core components when it is hit, thus significantly improving the vehicle's driving safety and passability.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the above technical effects at the same time. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the lower guard plate of the novel anti-collision car bumper according to an embodiment of the present utility model.

[0015] Attached Figure Labels

[0016] The lower guard plate body 10, V-shaped protective plate 20, arc-shaped anti-collision plate 30, arc-shaped limiting plate 40, first mounting plate 50, second mounting plate 60, limiting groove 70, and irregularly shaped mounting plate group 80. Detailed Implementation

[0017] Please refer to Figure 1 , Figure 1This is a schematic diagram of a novel anti-collision car bumper lower guard plate according to an embodiment of the present invention. As shown in the figure, a novel anti-collision car bumper lower guard plate includes: a lower guard plate body 10 with outwardly extending V-shaped protective plates 20 on both sides of the bottom of the lower guard plate body 10, the included angle of the V-shaped protective plates being 120°-150°, and the thickness of the V-shaped protective plates being 1.2-1.5 times the thickness of the lower guard plate body 10; outwardly extending arc-shaped anti-collision plates 30 on both sides of the V-shaped protective plates 20; and inwardly extending arc-shaped limiting plates 40 at the bottom of the lower guard plate body 10, the V-shaped protective plates 20, and the arc-shaped anti-collision plates 30.

[0018] In one embodiment of this utility model, V-shaped protective plates 20 extend outward from the bottom of both sides of the lower guard plate body 10. The included angle of the V-shaped protective plates 20 is optimized to 120°-150°. This angle range can form an efficient force dispersion structure in the event of a frontal collision, guiding and dispersing the concentrated impact force to both sides. At the same time, its thickness is set to 1.2-1.5 times the thickness of the lower guard plate body 10, achieving local reinforcement and ensuring sufficient rigidity at the primary impact point to prevent structural breakage. Subsequently, arc-shaped anti-collision plates 30 extending outward are further provided on both sides of the V-shaped protective plates 20. This structure constitutes a second line of defense when the vehicle hits obstacles such as curbs. In the event of a side scrape or collision, its curved surface can smoothly change the direction of the collision, converting the destructive impact into lateral movement of the vehicle, effectively preventing the guard plate from being hooked or torn. In addition, at the bottom edges of the lower guard plate body 10, the V-shaped protective plate 20, and the curved anti-collision plate 30, there are inwardly extending curved limiting plates 40. This design not only connects with the body components in the longitudinal direction to form a closed box-shaped support frame, greatly improving the overall resistance to bending deformation, but also effectively limits the upward collapse displacement of the guard plate in the event of a bottoming collision, building a solid barrier to prevent the damaged guard plate from intruding into and damaging key chassis components such as the engine oil pan and transmission above.

[0019] Furthermore, the inner side of the arc-shaped limiting plate 40 is provided with an arc-shaped first mounting plate 50, and the lower guard plate body 10 and the first mounting plate 50 are provided with mounting holes. The top of the lower guard plate body 10 is provided with an outwardly extending second mounting plate 60. The second mounting plate 60 is provided with a figure-eight shaped limiting groove 70, and the number of limiting grooves 70 is seven sets. The second mounting plate 60 is provided with evenly spaced irregularly shaped mounting plate groups 80, which include irregularly shaped mounting plates, and the irregularly shaped mounting plates correspond to the automotive connecting parts.

[0020] In detail, an arc-shaped first mounting plate 50 is provided on the inner side of the arc-shaped limiting plate 40, which extends from the bottom of the lower guard plate body 10, the V-shaped protective plate 20, and the arc-shaped anti-collision plate 30. Mounting holes are also provided on the lower guard plate body 10. This design allows the guard plate to be bolted to robust components such as the vehicle body longitudinal beams or subframe from multiple directions, both from the bottom and front, forming a three-dimensional, highly torsional box-shaped frame structure that greatly enhances overall rigidity. Meanwhile, seven sets of figure-eight shaped limiting grooves 70 are innovatively provided on the second mounting plate 60 extending outward from the top of the lower guard plate body 10. These figure-eight shaped grooves not only provide precise positioning for the connection between the guard plate and the bumper body, but more importantly, as a dynamic compensation structure, they effectively absorb minor displacements between components caused by vibration or thermal expansion and contraction during vehicle operation, preventing stress concentration and tearing at the connection points. In addition, the second mounting plate 60 is also provided with a group of irregularly shaped mounting plates 80 with uniform spacing. The irregularly shaped mounting plates contained therein correspond to the shape and position of specific connecting parts at the front of the car. This customized interface design ensures that the guard plate fits tightly with the front structure of the car body, and achieves precise load distribution from surface to point. It completely eliminates the loosening and abnormal noise problems caused by mismatch of mounting points, thus completing a comprehensive improvement from local reinforcement to overall installation reliability.

[0021] Furthermore, the arc radius of the curved anti-collision plate 30 is 80-120mm, and the end of the curved anti-collision plate 30 away from the V-shaped protective plate is provided with a rounded corner transition structure with a rounded corner radius of 5-10mm.

[0022] In detail, the radius of curvature of the arc-shaped bumper 30 is limited to 80-120mm. This specific curvature range can form a contact surface with ideal guiding effect when the vehicle makes lateral contact with obstacles such as curbs and guardrails. Its mechanism is to effectively transform the originally harsh, impact-type collision into a relatively smooth rolling or sliding contact that guides the vehicle to deviate, thereby greatly weakening the peak force of the lateral impact and avoiding severe tearing caused by the edge of the bumper being hooked or jammed. Furthermore, at the outer end of the arc-shaped bumper 30 away from the V-shaped protective plate 20, a rounded corner transition structure with a radius of 5-10mm is specially set. This subtle but crucial design firstly eliminates potential stress concentration points in the structure, preventing cracks from being caused from the sharp edges when subjected to scraping impacts; at the same time, the rounded corner acts as a smooth guide slope, allowing the bumper to smoothly achieve force and motion steering at the initial moment of contact with the obstacle, minimizing intrusion resistance and impact noise. In summary, the coordinated design of the arc radius and the end fillets ensures that the arc-shaped anti-collision plate 30 performs optimally in terms of effective energy guidance and prevention of structural damage.

[0023] In summary, this utility model, through its multi-level and multi-angle protection design of V-shaped protective plate 20, arc-shaped limiting plate 40, first mounting plate 50 and second mounting plate 60, effectively disperses and absorbs collision energy, preventing the protective plate from tearing over a large area or penetrating into the chassis and damaging core components when impacted, thus significantly improving the vehicle's driving safety and passability.

[0024] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A novel anti-collision car bumper lower guard plate, characterized in that, include: The lower guard plate body has outwardly extending V-shaped protective plates on both sides of its bottom. The V-shaped protective plates have outwardly extending arc-shaped anti-collision plates on both sides. The lower guard plate body, the V-shaped protective plates, and the arc-shaped anti-collision plates have inwardly extending arc-shaped limiting plates at their bottoms. The arc-shaped limiting plates have an arc-shaped first mounting plate on their inner side. The lower guard plate body has an outwardly extending second mounting plate on its top. The second mounting plate has a figure-eight-shaped limiting groove and a group of evenly spaced irregularly shaped mounting plates.

2. The novel anti-collision car bumper lower guard plate according to claim 1, characterized in that, The lower guard plate body and the first mounting plate are provided with mounting holes.

3. The novel anti-collision car bumper lower guard plate according to claim 1, characterized in that, The number of limiting grooves is seven.

4. The novel anti-collision car bumper lower guard plate according to claim 1, characterized in that, The irregularly shaped mounting plate assembly includes irregularly shaped mounting plates, which correspond to automotive connecting components.

5. The novel anti-collision car bumper lower guard plate according to claim 1, characterized in that, The included angle of the V-shaped protective plate is 120°-150°, and the thickness of the V-shaped protective plate is 1.2-1.5 times the thickness of the lower protective plate body.

6. The novel anti-collision car bumper lower guard plate according to claim 1, characterized in that, The arc-shaped anti-collision plate has an arc radius of 80-120mm, and the end of the arc-shaped anti-collision plate away from the V-shaped protective plate is provided with a rounded corner transition structure with a rounded corner radius of 5-10mm.

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