Automobile chassis protection device
By introducing buffer components and damper structures into the vehicle chassis protection device, the problem of traditional devices being unable to effectively buffer impacts has been solved, achieving better protection and reducing the risk of chassis damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-22
- Publication Date
- 2026-03-20
AI Technical Summary
Traditional automotive chassis protection devices cannot effectively buffer and absorb impact forces when encountering strong impacts or vibrations, resulting in damage to the chassis and body structure.
The system employs a buffer structure, including a connecting arm, a slide bar, a spring, and a damper. Through the sliding cooperation of the slider and the connecting arm, and the energy dissipation of the damper, the impact force is dispersed and converted. Combined with the design of the protective plate, it provides balanced support and protection.
It significantly reduces the risk of chassis component damage caused by road impacts, improves the cushioning effect, reduces vibration transmission, and protects the chassis structure.
Smart Images

Figure CN224013534U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to chassis protection device technical field, specifically point to a kind of automobile chassis protection device. BACKGROUND
[0002] Automobile chassis protection device is an indispensable part of automobile design, mainly used to protect chassis from road gravel, mud, water stain and other external factors.
[0003] Traditional chassis protection device is usually composed of simple metal plate, although it can provide certain protection, but when encountering strong impact or vibration, it often cannot effectively buffer and absorb impact force, resulting in chassis and vehicle body structure damage. INVENTION CONTENTS
[0004] The utility model solves the technical problem that the valve core and spring of traditional check valve are inconvenient to assemble and disassemble, and increase maintenance cost.
[0005] In order to realize the above function, the technical scheme adopted by the utility model is as follows: a kind of automobile chassis protection device, including mounting plate and protection plate, buffer piece is equipped between the mounting plate and protection plate, the buffer piece includes connecting arm, slide bar and spring, the bottom wall of mounting plate is equipped with oppositely arranged support plate, the both ends of slide bar are arranged on support plate, slide block is slidably sleeved on slide bar, spring is sleeved on slide bar, spring is arranged between slide block and support plate, the top end of connecting arm is hinged on slide block, the bottom end of connecting arm is hinged on the top wall of protection plate, damping piece is arranged between connecting arm and slide block.
[0006] Preferably, the buffer piece is provided with four groups, connecting rod is arranged between the two groups of support arms on the same side, connecting plate is arranged between the two groups of slide blocks on the same side, and the elastic member is arranged between the connecting plate and the connecting rod.
[0007] Preferably, the damping piece includes damper, one end of the damper is hinged on the connecting rod, and the other end of the damper is hinged on the side wall of the connecting plate.
[0008] Preferably, mounting bolts are arranged at the four corners of the mounting plate.
[0009] Preferably, a plurality of through holes are arranged on the protection plate.
[0010] Preferably, the both ends of the protection plate are provided with upwardly inclined extension plates.
[0011] The utility model adopts the above structure to obtain the beneficial effects as follows:
[0012] 1、The spring in the buffer piece of the protection device can be compressed and deformed when impacted, absorbing part of the impact force, while the sliding fit of the connecting arm and the slider on the slide rod, and the hinged structure of the connecting arm and the protection plate, can disperse and transform the impact force, improve the buffering effect, and the damper between the connecting arm and the slider can effectively consume impact energy, reduce the transmission of vibration, protect the chassis, and significantly reduce the risk of chassis component damage caused by road impact.
[0013] 2、The four groups of buffer pieces are evenly distributed, providing balanced support and protection force. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The overall structure of the embodiment of the utility model Figure 1 ;
[0015] Figure 2 The overall structure of the embodiment of the utility model Figure 2 ;
[0016] Figure 3 The overall structure of the embodiment of the utility model Figure 3 ;
[0017] Figure 4 The cross-sectional view of the embodiment of the utility model.
[0018] Among them, 1, mounting plate, 2, protection plate, 3, buffer piece, 4, connecting arm, 5, slide rod, 6, spring, 7, support plate, 8, slider, 9, shock absorber, 10, connecting rod, 11, connecting plate, 12, damper, 13, mounting bolt, 14, through hole, 15, extension plate. DETAILED DESCRIPTION
[0019] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0020] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The utility model will be further described in detail below in combination with the drawings.
[0021] As shown in Figure 1-4 The utility model provides an automobile chassis protection device, including mounting panel 1 and protection plate 2, mounting panel 1's four corners all are equipped with installation bolt 13, the mounting panel 1 and protection plate 2 between be equipped with buffer piece 3, buffer piece 3 includes connecting arm 4, slide rod 5 and spring 6, the bottom wall of mounting panel 1 is equipped with oppositely arranged support plate 7, the both ends of slide rod 5 are located on support plate 7, slide rod 5 is slidably sleeved with sliding block 8, spring 6 is sleeved on slide rod 5, spring 6 is located between sliding block 8 and support plate 7, the top end of connecting arm 4 is hinged on sliding block 8, the bottom end of connecting arm 4 is hinged on the top wall of protection plate 2, damping piece 9 is equipped between connecting arm 4 and sliding block 8, when chassis meets the situation such as road surface protrusion, depression or splashing sandstone during vehicle driving, protection plate 2 first contacts external impact, and impact force is transmitted to connecting arm 4 through protection plate 2, connecting arm 4 drives sliding block 8 to slide on slide rod 5, and simultaneously spring 6 is compressed, in this process, spring 6 absorbs part of impact force, and the movement of connecting arm 4 and sliding block 8 disperses impact force, and simultaneously damping piece 9 starts to work, consumes impact energy, and protects chassis components from being damaged.
[0022] As shown in Figure 4 The utility model discloses a kind of automobile chassis protection devices, including mounting panel 1 and protection plate 2, mounting panel 1's four corners all are equipped with installation bolt 13, the mounting panel 1 and protection plate 2 between be equipped with buffer piece 3, buffer piece 3 includes connecting arm 4, slide rod 5 and spring 6, the bottom wall of mounting panel 1 is equipped with oppositely arranged support plate 7, the both ends of slide rod 5 are located on support plate 7, slide rod 5 is slidably sleeved with sliding block 8, spring 6 is sleeved on slide rod 5, spring 6 is located between sliding block 8 and support plate 7, the top end of connecting arm 4 is hinged on sliding block 8, the bottom end of connecting arm 4 is hinged on the top wall of protection plate 2, damping piece 9 is equipped between connecting arm 4 and sliding block 8, when chassis meets the situation such as road surface protrusion, depression or splashing sandstone during vehicle driving, protection plate 2 first contacts external impact, and impact force is transmitted to connecting arm 4 through protection plate 2, connecting arm 4 drives sliding block 8 to slide on slide rod 5, and simultaneously spring 6 is compressed, in this process, spring 6 absorbs part of impact force, and the movement of connecting arm 4 and sliding block 8 disperses impact force, and simultaneously damping piece 9 starts to work, consumes impact energy, and protects chassis components from being damaged.
[0023] As shown in Figure 4 The utility model discloses a kind of automobile chassis protection devices, including mounting panel 1 and protection plate 2, mounting panel 1's four corners all are equipped with installation bolt 13, the mounting panel 1 and protection plate 2 between be equipped with buffer piece 3, buffer piece 3 includes connecting arm 4, slide rod 5 and spring 6, the bottom wall of mounting panel 1 is equipped with oppositely arranged support plate 7, the both ends of slide rod 5 are located on support plate 7, slide rod 5 is slidably sleeved with sliding block 8, spring 6 is sleeved on slide rod 5, spring 6 is located between sliding block 8 and support plate 7, the top end of connecting arm 4 is hinged on sliding block 8, the bottom end of connecting arm 4 is hinged on the top wall of protection plate 2, damping piece 9 is equipped between connecting arm 4 and sliding block 8, when chassis meets the situation such as road surface protrusion, depression or splashing sandstone during vehicle driving, protection plate 2 first contacts external impact, and impact force is transmitted to connecting arm 4 through protection plate 2, connecting arm 4 drives sliding block 8 to slide on slide rod 5, and simultaneously spring 6 is compressed, in this process, spring 6 absorbs part of impact force, and the movement of connecting arm 4 and sliding block 8 disperses impact force, and simultaneously damping piece 9 starts to work, consumes impact energy, and protects chassis components from being damaged.
[0024] As shown in Figure 1As shown, the guard plate 2 is provided with a plurality of through holes 14 for draining water, and the two ends of the guard plate 2 are provided with upwardly inclined extension plates 15 to protect the edge of the chassis and block the sand and other foreign matters splashed from the side, thereby expanding the protection range.
[0025] In use, the mounting plate 1 is fixed on the chassis of the vehicle through the mounting bolts 13 at the four corners to ensure firm installation, and when the chassis encounters road bumps, depressions or splashed sand and other matters during the driving of the vehicle, the guard plate 2 first contacts the external impact, and the impact force is transmitted to the connecting arm 4 through the guard plate 2, the connecting arm 4 drives the sliding block 8 to slide on the slide rod 5, and the spring 6 is compressed at the same time, and in this process, the spring 6 absorbs part of the impact force, and the movement of the connecting arm 4 and the sliding block 8 disperses the impact force.
[0026] When the damper 12 starts to work, the impact energy is consumed, the transmission of the vibration is reduced, the impact force transmitted to the chassis is greatly reduced, and thus the chassis parts are protected from damage.
[0027] If the vehicle drives on a waterlogged road, the water is drained through the through holes 14 on the guard plate 2 to prevent the accumulation of water. When there is sand splashed from the side, the upwardly inclined extension plates 15 at the two ends of the guard plate 2 can block the sand to avoid damage to the edge of the chassis and the key components.
[0028] The above describes the utility model and its implementation mode, which is not limited, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed without departing from the creative purpose of the utility model, which should belong to the protection scope of the utility model.
Claims
1. A vehicle chassis protection device, comprising a mounting plate (1) and a protective plate (2), characterized in that: A buffer (3) is provided between the mounting plate (1) and the protective plate (2). The buffer (3) includes a connecting arm (4), a sliding rod (5) and a spring (6). The bottom wall of the mounting plate (1) is provided with a support plate (7) arranged opposite to each other. The two ends of the sliding rod (5) are provided on the support plate (7). A slider (8) is slidably sleeved on the sliding rod (5). The spring (6) is sleeved on the sliding rod (5) and is located between the slider (8) and the support plate (7). The top end of the connecting arm (4) is hinged to the slider (8). The bottom end of the connecting arm (4) is hinged to the top wall of the protective plate (2). A shock absorber (9) is provided between the connecting arm (4) and the slider (8).
2. The vehicle chassis protection device according to claim 1, characterized in that: The buffer (3) is provided in four sets. A connecting rod (10) is provided between two sets of connecting arms (4) on the same side, and a connecting plate (11) is provided between two sets of sliders (8) on the same side. The buffer (3) is located between the connecting plate (11) and the connecting rod (10).
3. A vehicle chassis protection device according to claim 1 or 2, characterized in that: The shock absorber (9) includes a damper (12), one end of which is hinged to a connecting rod, and the other end of which is hinged to the side wall of the connecting plate (11).
4. The automobile chassis protection device according to claim 3, characterized in that: Mounting bolts (13) are provided at each of the four corners of the mounting plate (1).
5. A vehicle chassis protection device according to any one of claims 1-2, characterized in that: The protective plate (2) is provided with several through holes (14).
6. A vehicle chassis protection device according to claim 5, characterized in that: The protective plate (2) has upwardly inclined extension plates (15) at both ends.