An engine bay undertray

Abstract

The utility model discloses an engine cabin bottom guard plate. Engine cabin bottom guard plate, include: mainboard and install the vice board in the inside of mainboard, the mainboard middle part is equipped with the reserved orifice for installing vice board, the mainboard edge is equipped with the insertion strip, is equipped with the mounting hole of mounting bolt on the insertion strip, vice board is located the inside of reserved orifice, vice board and mainboard flexible connection. The engine cabin bottom guard plate provided by the utility model can reduce the hindrance to the sinking of the engine through the flexible connection of the mainboard and the vice board, when the engine sinks, the huge downward pressure generated by the engine is transmitted to the vice board, and the vice board is pressed to move downward, the spring is elongated, and the pulling force of the spring is smaller than the downward pressure of the transmitter, so the influence on the sinking of the transmitter is smaller.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to an engine compartment bottom guard plate. Background Technology

[0002] The engine compartment underbody protection plate, commonly known as an "engine skid plate" or "chassis skid plate," is a protective plate installed directly below the engine and transmission of a car, between the longitudinal beams of the chassis. Its core function is to act as a "protective shield" for critical components of the vehicle's chassis. During driving, stones, protruding obstacles, and potholes from the road can directly impact exposed vulnerable parts such as the engine oil pan, transmission housing, steering gear, or pipelines, causing scratches, dents, or even ruptures and oil leaks, leading to costly repairs and safety hazards. The primary function of the skid plate is to protect against these physical impacts and scrapes from the road surface, significantly reducing the risk of damage to chassis components. Secondly, the skid plate effectively prevents mud, snow, de-icing agents, and road debris from directly splashing into the engine compartment and onto chassis components. This not only helps keep the engine compartment relatively clean and reduces mud and sand accumulation but also slows down the corrosion and rust of chassis metal components (such as exhaust pipes and suspension linkages), extending their service life.

[0003] Existing technology provides a ventilated engine compartment bottom guard plate, including a guard plate body disposed at the bottom of the engine compartment. The guard plate body protrudes downward to form a boss, and the windward side of the boss has an inclined surface that slopes from front to back. Multiple air inlets are provided on the inclined surface, and these air inlets communicate with cavities inside the engine compartment. This utility model also provides a vehicle, including an engine compartment, with a ventilated engine compartment bottom guard plate at the bottom of the engine compartment. Because the aforementioned engine compartment bottom guard plate includes the boss, the air intake of the engine compartment is increased from one path—the air intake grille of the front bumper—to two paths: the air intake grille of the bumper and the air inlets on the boss of the engine compartment bottom guard plate. This enhances the air intake of the engine compartment, removes more heat from the engine compartment, effectively reduces the temperature inside the engine compartment, and solves the problem of excessively high engine compartment temperature caused by insufficient air intake.

[0004] The aforementioned device is fixed to the bottom of the engine with bolts, which to some extent affects the safety mechanism of the engine sinking.

[0005] Therefore, it is necessary to provide an engine compartment bottom guard plate to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides an engine compartment bottom guard plate that can reduce the impact of the guard plate on the engine when it sinks.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] The engine compartment underbody protection plate includes: a main plate and a sub-plate installed inside the main plate;

[0009] The motherboard has a reserved hole in the middle for mounting a sub-board, and the motherboard has a strip on its edge with mounting holes for mounting bolts.

[0010] The sub-board is located inside the reserved hole, and the sub-board is flexibly connected to the main board.

[0011] Preferably, a plurality of springs are provided between the sub-board and the main board, with one end of each spring mounted on the main board and the other end mounted on the sub-board.

[0012] Preferably, the center of the sub-plate is recessed downwards, and the recessed portion is a groove.

[0013] Preferably, the bottom of the groove is provided with a drainage hole.

[0014] Preferably, an inspection cover is also installed on the groove.

[0015] Preferably, the gap between the sub-board and the main board is a heat dissipation gap.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention can reduce the obstruction to the engine sinking by the flexible connection between the main board and the sub-board. When the engine sinks, the huge downward pressure generated by the engine is transmitted to the sub-board. At the same time, the sub-board is subjected to pressure and moves downward, and the spring is stretched. The tension of the spring is relatively small compared with the downward pressure of the engine, so it has little impact on the sinking of the engine.

[0018] (2) By setting a groove on the sub-plate, the groove part can first contact the ground, etc. The vibration or sound generated by friction can remind the driver that the chassis is close to the ground, thus achieving a warning effect;

[0019] (3) By opening drainage holes in the groove, the present invention can discharge the accumulated water from the drainage holes under the external forces such as vibration generated by vehicle driving, thus preventing the accumulated water from eroding the groove. Attached Figure Description

[0020] Figure 1 A first-view structural schematic diagram of the engine compartment bottom guard plate provided by this utility model;

[0021] Figure 2 A top view of the engine compartment bottom guard plate provided by this utility model;

[0022] Figure 3This is a structural schematic diagram of the engine compartment bottom guard plate provided by this utility model from a second perspective.

[0023] The corresponding names of the reference numerals in the attached drawings are as follows: 11, main board; 111, reserved hole; 12, insert; 121, mounting hole; 13, spring; 21, sub-board; 211, groove; 22, drain hole; 23, heat dissipation seam; 24, inspection cover. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0025] An engine skid plate is an automotive accessory installed on the chassis of a car to protect the engine, transmission, and adjacent components. It reduces damage to the engine and transmission from impacts, and provides excellent protection, especially when the vehicle is driving on uneven surfaces such as gravel roads and mountain roads. The inventor discovered that most vehicles are currently equipped with engine drop technology, which means that when the front of the vehicle is subjected to a large impact, the engine will not be squeezed towards the passenger compartment with the impact force, but will move towards the ground. This increases the driver's survival space and effectively protects the driver's life. However, using bolts to install a skid plate under the engine will hinder this process and pose a certain safety risk.

[0026] First embodiment:

[0027] like Figure 1 The image shown is a view of the bottom of the engine compartment underbody protection plate provided by this utility model, which includes a main plate 11 and a sub-plate 21 installed inside the main plate 11.

[0028] Specifically, the shape of motherboard 11 is as follows: Figure 1 As shown, the whole is rectangular plate, with a reserved hole 111 in the middle for mounting the sub-plate 21. The reserved hole 111 is a large hole in the middle of the main plate 11. Therefore, the main plate 11 has a U-shaped structure. The edge of the main plate 11 is welded with a fixing strip 12. The strip 12 can be inserted into the chassis. The strip 12 has a mounting hole 121 for mounting bolts. The bolts pass through the mounting hole 121 and are fixed to the bolt holes reserved in the chassis.

[0029] The shape of the sub-plate 21 is as follows Figure 1 As shown, the overall structure is also a rectangular plate, located inside the reserved hole 111. Multiple through holes are opened along the edge of the sub-plate 21. One end of the spring 13 is hung on the through hole of the sub-plate 21, and the other end of the spring 13 is hung in a through hole near the inner side of the main plate 11. The distribution of the springs 13 is as follows: Figure 2 As shown, it is important to ensure that all springs 13 are in a stretched state, so that the subplate 21 is hung on the main plate 11 by the springs 13.

[0030] The flexible connection between the main board 11 and the sub-board 21 can reduce its obstruction to the engine's downward movement. When the engine is downward, the huge downward pressure generated by the engine is transmitted to the sub-board 21. At the same time, the sub-board 21 is subjected to pressure and moves downward, and the spring 13 is stretched. The tension of the spring 13 is relatively small compared to the downward pressure of the engine, so it has little impact on the downward movement of the engine.

[0031] Second embodiment:

[0032] like Figure 3 As shown, this is a top-down view of the device. The side visible from this view is mounted on the chassis. The center of the sub-plate 21 is recessed downwards, and the recessed part is a groove 211. The bottom of the groove 211 is at a lower level than the main plate 11.

[0033] By setting a groove 211 on the sub-plate 21, the groove 211 part can first contact the ground, etc. The vibration or sound generated by friction can indicate to the driver that the chassis is close to the ground, which serves as a warning. When the groove 211 part contacts the ground, the groove 211 is pushed upward by the ground and moves upward. Relying on the flexible connection between the sub-plate 21 and the main plate 11, the sub-plate 21 has a certain degree of freedom of movement, so it will not be immediately squeezed and deformed by the ground.

[0034] Third embodiment:

[0035] like Figure 3 As shown, the bottom of the groove 211 is provided with a drainage hole 22. Water is prone to accumulate in the groove 211. When driving in the rain or when there is a lot of water on the ground, the water will enter the groove 211 and cause certain corrosion damage to the groove 211.

[0036] By opening a drainage hole 22 in the groove 211, water can be discharged from the drainage hole 22 under external forces such as vibration generated by vehicle movement, thus preventing water from eroding the groove 211.

[0037] Fourth embodiment:

[0038] like Figure 3 As shown, a through hole for installing the inspection cover 24 is opened at the bottom of the groove 211. The inspection cover 24 is made of rubber and has an I-shaped longitudinal section. The middle part is a short rubber post of the same size as the through hole. The upper and lower ends of the short post are caps with a large surface area. The upper and lower caps are stuck on the upper and lower surfaces of the groove 211 to achieve connection and fixation with the groove 211.

[0039] Opening the inspection cover 24 allows direct observation of the condition of automotive components such as the gearbox on the upper part of the protective plate, facilitating inspection and maintenance.

[0040] Fifth embodiment:

[0041] like Figure 3As shown, the gap between the sub-plate 21 and the main plate 11 is the heat dissipation seam 23. The heat dissipation seam 23 is a square-shaped structure located in the horizontal plane. During vehicle operation, airflow enters from one side of the heat dissipation seam 23 and exits from the other side, thereby carrying away the heat generated during engine operation and preventing heat from accumulating on the upper part of the guard plate.

[0042] Working principle: The flexible connection between the main board 11 and the sub-board 21 can reduce the obstruction to the engine's downward movement. When the engine is downward, the huge downward pressure generated by the engine is transmitted to the sub-board 21. At the same time, the sub-board 21 is subjected to pressure and moves downward, and the spring 13 is stretched. The tension of the spring 13 is relatively small compared to the downward pressure of the engine, so it has little impact on the downward movement of the engine.

[0043] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. An underhood shield characterized by, include: The motherboard (11) and the sub-board (21) installed inside the motherboard (11). The main board (11) has a reserved hole (111) in the middle for mounting the sub-board (21), and the main board (11) has a strip (12) on its edge, and the strip (12) has mounting holes (121) for mounting bolts. The sub-plate (21) is located inside the reserved hole (111), and the sub-plate (21) is flexibly connected to the main plate (11).

2. The underhood apron of claim 1 wherein, A plurality of springs (13) are provided between the sub-plate (21) and the main plate (11), with one end of the spring (13) mounted on the main plate (11) and the other end mounted on the sub-plate (21).

3. An underhood shield according to claim 1 or 2, characterized in that The sub-plate (21) is recessed downwards at its center, and the recessed part is a groove (211).

4. The underhood fascia of claim 3 wherein, The bottom of the groove (211) is provided with a drainage hole (22).

5. The engine compartment bottom guard plate according to claim 4, characterized in that, An inspection cover (24) is also installed on the groove (211).

6. The engine compartment bottom guard plate according to claim 5, characterized in that, The gap between the sub-board (21) and the main board (11) is a heat dissipation gap (23).

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