Bottom protection device of vehicle and vehicle

By installing movable protective barriers and pneumatic actuators at the bottom of the vehicle, the distance between the protective barriers and the ground can be adjusted, solving the problem of small motorcycles and electric vehicles getting under the vehicle and improving the vehicle's safety performance and passability.

CN223533456UActive Publication Date: 2025-11-11BEIQI FOTON MOTOR CO LTD
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Patent Information

Application Number
CN202423134338.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-11-11
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

The existing vehicle bottom design makes it easy for small motorcycles and electric vehicles to get stuck underneath the vehicle, affecting safety performance.

Method used

It employs movable protective barriers and pneumatic actuators, which reduce the probability of small motorcycles and electric vehicles getting stuck underneath the vehicle by adjusting the ground clearance of the protective barriers, and increase passability when needed.

Benefits of technology

It improves vehicle safety and maneuverability, reduces the risk of small motorcycles and electric vehicles getting stuck underneath the vehicle, and maintains vehicle reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vehicle bottom protection device and a vehicle, and relates to the field of vehicles, the vehicle bottom protection device comprises a protection body, the protection body is suitable for being fixedly arranged on a chassis or a container of the vehicle, and the protection body comprises a protection beam; the protective baffle is movably arranged on the protective beam; and the pneumatic driver is arranged on the protection body, and the pneumatic driver is connected with the protection baffle and used for driving the protection baffle to act so as to change the ground clearance of the protection baffle. Therefore, the protective baffle is movably arranged on the protective beam, the protective baffle is driven to act through the pneumatic driver, the ground clearance of the protective baffle can be reduced according to needs, the probability that a small motorcycle or an electric vehicle enters the bottom of the vehicle from the lower portion of the vehicle can be reduced, and the safety performance of the vehicle can be improved; the distance between the protective baffle and the ground can be increased according to needs, so that the vehicle has excellent trafficability, and the use reliability of the vehicle is improved.
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Description

Technical Field

[0001] This utility model relates to the field of vehicles, and in particular to a vehicle underrun protection device and a vehicle. Background Technology

[0002] In related technologies, the lower part of the vehicle is relatively high off the ground to meet the requirements of vehicle passability and enable the vehicle to adapt to road conditions outside the city. However, in the city, small motorcycles and electric vehicles are very likely to run under the vehicle and cause safety accidents, thus affecting the vehicle's safety performance. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a vehicle underbody protection device that can reduce the probability of small motorcycles and electric vehicles crawling under the vehicle, thereby improving vehicle safety performance.

[0004] This utility model further proposes a vehicle.

[0005] The vehicle bottom protection device according to this utility model includes: a protective body, the protective body being fixed to the chassis or cargo box of the vehicle, the protective body including: a protective beam; a protective baffle, the protective baffle being movably disposed on the protective beam; and a pneumatic actuator, the pneumatic actuator being disposed on the protective body, the pneumatic actuator being connected to the protective baffle and used to drive the protective baffle to move, thereby changing the ground clearance of the protective baffle.

[0006] According to the vehicle bottom protection device of this utility model, by making the protective baffle movable on the protective beam and driving the protective baffle to move by a pneumatic actuator, the ground clearance of the protective baffle can be adjusted as needed, which can reduce the probability of small motorcycles and electric vehicles crawling under the vehicle, thus improving the vehicle's safety performance. Furthermore, the ground clearance of the protective baffle can be increased as needed to give the vehicle excellent passability, thus improving the vehicle's reliability.

[0007] In some examples of this utility model, the vehicle bottom protection device further includes: a transmission rod, the protective baffle is rotatably disposed on the protective beam, and the pneumatic actuator includes: a drive body and a drive rod, the drive body is used to drive the drive rod to move, one end of the transmission rod is connected to the protective baffle, and the other end of the transmission rod is rotatably connected to the drive rod.

[0008] In some examples of this utility model, the protective baffle has a connecting seat, and one end of the transmission rod is rotatably connected to the connecting seat.

[0009] In some examples of this utility model, the vehicle bottom protection device further includes a connector, the connector including a first sub-body and a second sub-body, the first sub-body and the second sub-body being rotatably connected, the first sub-body being disposed on the protective beam, and the protective baffle being connected to the second sub-body.

[0010] In some examples of this utility model, the protective baffle is slidably disposed on the protective beam, and the pneumatic actuator includes: a drive body and a drive rod, the drive body being used to drive the drive rod to move, and the drive rod being connected to the protective baffle.

[0011] In some examples of this utility model, there are multiple pneumatic actuators, which are arranged at intervals along the extension direction of the protective baffle.

[0012] In some examples of this invention, the pneumatic actuator is adapted to connect to the vehicle's air reservoir to draw air from the air reservoir.

[0013] In some examples of this utility model, the protective body further includes: a connecting plate, the connecting plate being adapted to be fixed to the chassis or the cargo box, the protective beam being connected to the connecting plate, and the pneumatic actuator being disposed on the connecting plate.

[0014] In some examples of this utility model, there are multiple connecting plates and multiple pneumatic actuators, with each of the multiple pneumatic actuators corresponding to one of the multiple connecting plates.

[0015] The vehicle according to this utility model includes the aforementioned underbody protection device.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the bottom protection device according to an embodiment of the present utility model being assembled on a vehicle;

[0019] Figure 2 This is a schematic diagram of the bottom protection device according to an embodiment of the present invention mounted on a vehicle at another angle;

[0020] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram showing the protective baffle retracted (with a large distance between the ground) according to an embodiment of the present utility model;

[0022] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0023] Figure 6 A schematic diagram of the protective baffle being lowered (with a small ground distance) according to an embodiment of this utility model;

[0024] Figure 7 yes Figure 6 Enlarged diagram of point C in the middle.

[0025] Figure label:

[0026] Chassis 99; Cargo box 98;

[0027] 10 protective body; 11 protective beam; 12 connecting plate;

[0028] Protective baffle 20; connecting seat 21;

[0029] Pneumatic actuator 30; drive body 31; drive rod 32;

[0030] Transmission rod 40;

[0031] Connector 50; First sub-body 51; Second sub-body 52. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] The following is for reference. Figures 1-7 This invention describes a vehicle underrun protection device according to an embodiment of the present invention.

[0034] like Figures 1-7 As shown, the bottom protection device according to an embodiment of the present invention includes: a protective body 10, a protective baffle 20, and a pneumatic actuator 30.

[0035] The protective body 10 is suitable for being fixed to the chassis 99 or cargo box 98 of a vehicle. The protective body 10 includes: a protective beam 11; a protective baffle 20 movably disposed on the protective beam 11; and a pneumatic actuator 30 disposed on the protective body 10. The pneumatic actuator 30 is connected to the protective baffle 20 and is used to drive the protective baffle 20 to move, thereby changing the ground clearance of the protective baffle 20.

[0036] As some embodiments of this application, the protective body 10 is fixed to the chassis 99 of the vehicle, and as some embodiments of this application, the protective body 10 is fixed to the cargo box 98 of the vehicle.

[0037] The protective baffle 20 is movably mounted on the protective beam 11, meaning that the protective baffle 20 can move relative to the protective beam 11. The pneumatic actuator 30 is mounted on the protective body 10 and is connected to the protective baffle 20. The connection method between the pneumatic actuator 30 and the protective baffle 20 can be, but is not limited to, welding, bolt connection, etc. As some embodiments of this application, the pneumatic actuator 30 is connected to the protective baffle 20 by bolt connection. Furthermore, the pneumatic actuator 30 can be used to drive the protective baffle 20 to move, thereby changing the ground clearance of the protective baffle 20. The pneumatic actuator 30 can be, but is not limited to, a cylinder, a pneumatic motor, etc. As some embodiments of this application, the pneumatic actuator 30 is a cylinder.

[0038] It should be noted that the pneumatic actuator 30 can drive the protective baffle 20 to change its ground clearance. When the vehicle is in an urban area (where the roads are relatively flat and have high passability), the pneumatic actuator 30 can drive the protective baffle 20 to reduce its ground clearance, thereby protecting the underside of the vehicle and reducing the probability of small motorcycles or electric vehicles crawling under the vehicle. This reduces the risk of small motorcycles or electric vehicles crawling under the vehicle and causing a crushing accident.

[0039] When the vehicle is located outside the city (where the road is uneven and the passability is low), the pneumatic actuator 30 can drive the protective baffle 20 to move, thereby increasing the ground clearance of the protective baffle 20 and enabling the vehicle to have excellent passability.

[0040] Furthermore, it should be explained that the protective beam 11 also has a certain protective function. By movably setting the protective baffle 20 on the protective beam 11, when the ground clearance of the protective baffle 20 is adjusted to be greater than or equal to the ground clearance of the protective beam 11, the protective beam 11 can also reduce the probability of small motorcycles and electric vehicles going under the vehicle. Moreover, the protective beam 11 can also reduce the probability of the vehicle chassis being scratched.

[0041] In addition, it is understandable that the protective beam 11 provides an installation position for the protective body 10, and the protective body 10 provides an installation position for the pneumatic actuator 30, which helps to reduce the installation difficulty of the protective body 10 and the pneumatic actuator 30.

[0042] As some embodiments of this application, the bottom protection device can be provided on the side bottom of the vehicle, or the bottom protection device can be provided on the rear bottom of the vehicle, or both the side bottom and the rear bottom of the vehicle can be provided with the bottom protection device proposed in this application.

[0043] Therefore, by making the protective baffle 20 movable on the protective beam 11 and driving the protective baffle 20 to move by the pneumatic actuator 30, the ground clearance of the protective baffle 20 can be lowered as needed, which can reduce the probability of small motorcycles and electric vehicles going under the vehicle, thus improving the vehicle's safety performance. Furthermore, the ground clearance of the protective baffle 20 can be increased as needed to give the vehicle excellent passability, thus improving the vehicle's reliability.

[0044] In some embodiments of this utility model, such as Figures 2-5 , Figure 7 As shown, the vehicle's bottom protection device also includes: a transmission rod 40, a protective baffle 20 rotatably mounted on the protective beam 11, and a pneumatic actuator 30 including: a drive body 31 and a drive rod 32. The drive body 31 is used to drive the drive rod 32 to move. One end of the transmission rod 40 is connected to the protective baffle 20, and the other end of the transmission rod 40 is rotatably connected to the drive rod 32.

[0045] The protective baffle 20 is rotatably mounted on the protective beam 11, meaning that the protective baffle 20 can rotate relative to the protective body 10 to change the ground clearance of the protective baffle 20.

[0046] The drive body 31 and the drive rod 32 are connected by a transmission. As in some embodiments of this application, the drive body 31 can drive the drive rod 32 to move, so that the drive rod 32 moves along the height direction of the vehicle (i.e., Figure 1 Move in the Z direction (as shown).

[0047] The transmission rod 40 has two opposite ends. One end of the transmission rod 40 is connected to the protective baffle 20, and the other end of the transmission rod 40 is rotatably connected to the drive rod 32. As some embodiments of this application, the transmission rod 40 has a first pivot shaft, and the drive rod 32 has a first pivot hole. The first pivot shaft of the transmission rod 40 and the first pivot hole of the drive rod 32 cooperate with each other to enable the transmission rod 40 and the drive rod 32 to be connected in a transmission manner.

[0048] By using the drive body 31 to drive the drive rod 32 to move, and connecting one end of the transmission rod 40 to the protective baffle 20 and the other end to the drive rod 32 rotatably, the linear motion of the drive rod 32 can drive the protective baffle 20 to rotate, thereby changing the ground clearance of the protective baffle 20. This can reduce the probability of small motorcycles and electric vehicles going under the vehicle, thus improving the vehicle's safety performance.

[0049] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the protective baffle 20 has a connecting seat 21, and one end of the transmission rod 40 is rotatably connected to the connecting seat 21.

[0050] In some embodiments of this application, the connecting seat 21 has one of a second pivot shaft and a second pivot hole, and the transmission rod 40 has the other of a second pivot shaft and a second pivot hole. The second pivot shaft and the second pivot hole cooperate with each other to make the transmission rod 40 rotatably connected to the connecting seat 21.

[0051] This arrangement allows for a reasonable connection between the transmission rod 40 and the protective baffle 20, ensuring smooth and stable rotation of the protective baffle 20. It also reduces the risk of any two components, such as the drive rod 32, transmission rod 40, and protective baffle 20, getting stuck during the driving process, thus improving the reliability of the bottom protection device.

[0052] In some embodiments of this utility model, such as Figures 4-7 As shown, the vehicle's bottom protection device also includes a connector 50, which includes a first sub-body 51 and a second sub-body 52. ​​The first sub-body 51 and the second sub-body 52 are rotatably connected. The first sub-body 51 is located on the protective beam 11, and the protective baffle 20 is connected to the second sub-body 52.

[0053] The first sub-body 51 and the second sub-body 52 are rotatably connected. As some embodiments of this application, the first sub-body 51 has one of a third pivot shaft and a third pivot hole, and the second sub-body 52 has the other of a third pivot shaft and a third pivot hole. The third pivot shaft and the third pivot hole cooperate with each other to make the first sub-body 51 and the second sub-body 52 rotatably connected, so that the protective baffle 20 can rotate relative to the protective body 10.

[0054] This configuration allows for a reliable rotatable connection between the protective beam 11 and the protective baffle 20, ensuring smooth and stable rotation of the protective baffle 20 relative to the protective beam 11. This reduces the risk of the protective baffle 20 getting stuck or interfering with the protective beam 11 during rotation. Furthermore, by rotatably connecting the transmission rod 40 to the drive rod 32, the transmission rod 40 to the connecting seat 21, and the first sub-body 51 and the second sub-body 52, the linear motion of the transmission rod 40 reliably drives the protective baffle 20 to rotate, resulting in a simple and reliable bottom protection device structure.

[0055] In some embodiments of this utility model, the protective baffle 20 is slidably disposed on the protective beam 11, and the pneumatic actuator 30 includes: a drive body 31 and a drive rod 32. The drive body 31 is used to drive the drive rod 32 to move, and the drive rod 32 is connected to the protective baffle 20.

[0056] In some embodiments of this application, the protective baffle 20 has a protrusion, and the protective beam 11 has a slide rail. The protrusion of the protective baffle 20 and the slide rail of the protective beam 11 cooperate with each other so that the protective baffle 20 is slidably disposed on the protective beam 11. The drive rod 32 is connected to the protective baffle 20. In some embodiments of this application, the drive rod 32 is connected to the protective baffle 20 by bolts. The drive body 31 can drive the drive rod 32 along the height direction of the vehicle (i.e., Figure 1 The protective baffle 20 moves along the height direction of the vehicle (i.e., the Z direction shown) to move in the Z direction. Figure 1 The protective baffle 20 slides relative to the protective beam 11 in the Z direction (as shown) to change the ground clearance of the protective baffle 20.

[0057] This design allows for a reasonable structure of the bottom protection device, reduces the difficulty of its installation, and enables reliable and rapid adjustment of the ground clearance of the protective baffle 20, thereby improving the reliability of the bottom protection device.

[0058] In some embodiments of this utility model, such as Figures 1-3 As shown, there are multiple pneumatic actuators 30, which are arranged at intervals along the extension direction of the protective baffle 20.

[0059] The number of pneumatic actuators 30 can be, but is not limited to, two, three, four, etc. As some embodiments of this application, the number of pneumatic actuators 30 is two, and the two pneumatic actuators 30 are arranged at intervals along the extending direction of the protective baffle 20. For example, the two pneumatic actuators 30 are arranged along the width direction of the vehicle (i.e.,...). Figure 1 The Y-direction (as shown) is arranged at intervals.

[0060] By arranging multiple pneumatic actuators 30 at intervals along the extension direction of the protective baffle 20, the protective baffle 20 can be driven simultaneously by multiple pneumatic actuators 30. This makes the force on the protective baffle 20 more uniform, reduces the risk of the protective baffle 20 tilting due to the force on one side being significantly greater than that on the other side, and helps to improve the smoothness of the operation of the protective baffle 20.

[0061] In some embodiments of this utility model, the pneumatic actuator 30 is adapted to be connected to the vehicle's air tank to draw air from the air tank. As some embodiments of this application, the vehicle proposed in this application can be a large vehicle such as a truck or van. The vehicle has an air tank, which can be used for, but is not limited to, braking functions. The pneumatic actuator 30 is connected to the vehicle's air tank through a pipeline to draw air from the air tank. This arrangement eliminates the need for a separate air storage device, which helps to save the number of parts and reduce the installation difficulty of the bottom protection device.

[0062] As some embodiments of this application, the pneumatic actuator 30 is connected to the vehicle's air reservoir via a pipeline. A control valve is provided on the pipeline, and the cab has a button for operating the control valve. The control valve can be directly operated by pressing the button to control the action of the protective baffle 20.

[0063] In some embodiments of this utility model, such as Figures 1-7 As shown, the protective body 10 also includes: a connecting plate 12, which is adapted to be fixed to the chassis 99 or the cargo box 98; a protective beam 11 connected to the connecting plate 12; and a pneumatic actuator 30 disposed on the connecting plate 12.

[0064] As some embodiments of this application, the connecting plate 12 is fixed to the chassis 99 of the vehicle, and as some embodiments of this application, the connecting plate 12 is fixed to the cargo box 98 of the vehicle.

[0065] The protective beam 11 is connected to the connecting plate 12. The connection method between the protective beam 11 and the connecting plate 12 can be, but is not limited to, welding, bolt connection, etc. As some embodiments of this application, the protective beam 11 and the connecting plate 12 are connected by welding. The pneumatic actuator 30 is located on the connecting plate 12.

[0066] As some embodiments of this application, the drive body 31 of the pneumatic actuator 30 is connected to the connecting plate 12 by bolts. As some embodiments of this application, the protective baffle 20 is movably disposed on the protective beam 11 by the connecting member 50.

[0067] This arrangement allows the protective beam 11 to be separated from the chassis 99 or cargo box 98 by the connecting plate 12, thereby reducing the probability of interference between the cargo box 98 or chassis 99 and the protective baffle 20. Furthermore, by setting the connecting plate 12, the installation firmness of the protective beam 11 can be improved, thereby providing a stronger support effect for the protective baffle 20. This further reduces the probability of small motorcycles and electric vehicles crawling under the vehicle, which is beneficial to improving the reliability of the bottom protection device.

[0068] In some embodiments of this utility model, such as Figures 1-3 As shown, there are multiple connecting plates 12 and multiple pneumatic actuators 30, with each pneumatic actuator 30 corresponding to one of the multiple connecting plates 12.

[0069] The number of connecting plates 12 can be, but is not limited to, two, three, four, etc., and the number of pneumatic actuators 30 can be, but is not limited to, two, three, four, etc. As some embodiments of this application, the number of connecting plates 12 is two, the number of pneumatic actuators 30 is two, and the two pneumatic actuators 30 are arranged in a one-to-one correspondence with the two connecting plates 12. The drive body 31 of each pneumatic actuator 30 is fixed to the corresponding connecting plate 12.

[0070] By setting multiple connecting plates 12, the installation firmness of the protective beam 11 can be improved, and the protective baffle 20 can be provided with a strong support effect. In addition, multiple connecting plates 12 can provide installation positions for multiple pneumatic actuators 30, so that multiple pneumatic actuators 30 can be set apart, which helps to reduce the installation difficulty of multiple pneumatic actuators 30.

[0071] According to the present invention, the vehicle includes the underbody protection device of the vehicle described in the above embodiment. By enabling the protective baffle 20 to be movably disposed on the protective beam 11 and driving the protective baffle 20 to move by the pneumatic actuator 30, the ground clearance of the protective baffle 20 can be adjusted as needed, thereby reducing the probability of small motorcycles and electric vehicles crawling under the vehicle and improving the vehicle's safety performance. Furthermore, the ground clearance of the protective baffle 20 can be increased as needed to give the vehicle excellent passability and improve the vehicle's reliability.

[0072] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0073] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0074] In the description of this utility model, "multiple" means two or more.

[0075] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0076] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle underbody protection device, characterized in that, include: A protective body (10) is adapted to be fixed to the chassis (99) or cargo box (98) of the vehicle, and the protective body (10) includes: a protective beam (11); A protective baffle (20) is movably disposed on the protective beam (11); A pneumatic actuator (30) is disposed on the protective body (10). The pneumatic actuator (30) is connected to the protective baffle (20) and is used to drive the protective baffle (20) to change the ground clearance of the protective baffle (20).

2. The vehicle underbody protection device according to claim 1, characterized in that, Also includes: The transmission rod (40) and the protective baffle (20) are rotatably disposed on the protective beam (11). The pneumatic actuator (30) includes a drive body (31) and a drive rod (32). The drive body (31) is used to drive the drive rod (32) to move. One end of the transmission rod (40) is connected to the protective baffle (20), and the other end of the transmission rod (40) is rotatably connected to the drive rod (32).

3. The vehicle underbody protection device according to claim 2, characterized in that, The protective baffle (20) has a connecting seat (21), and one end of the transmission rod (40) is rotatably connected to the connecting seat (21).

4. The vehicle underbody protection device according to claim 2, characterized in that, Also includes: The connector (50) includes a first sub-body (51) and a second sub-body (52), which are rotatably connected. The first sub-body (51) is located on the protective beam (11), and the protective baffle (20) is connected to the second sub-body (52).

5. The underbody protection device for a vehicle according to claim 1, characterized in that, The protective baffle (20) is slidably disposed on the protective beam (11). The pneumatic actuator (30) includes a drive body (31) and a drive rod (32). The drive body (31) is used to drive the drive rod (32) to move. The drive rod (32) is connected to the protective baffle (20).

6. The underbody protection device for a vehicle according to claim 1, characterized in that, There are multiple pneumatic actuators (30), and the multiple pneumatic actuators (30) are arranged at intervals along the extension direction of the protective baffle (20).

7. The underbody protection device for a vehicle according to claim 1, characterized in that, The pneumatic actuator (30) is adapted to connect to the air reservoir of the vehicle to draw air from the air reservoir.

8. The underbody protection device for a vehicle according to any one of claims 1-7, characterized in that, The protective body (10) further includes: a connecting plate (12), which is adapted to be fixed to the chassis (99) or the cargo box (98), the protective beam (11) is connected to the connecting plate (12), and the pneumatic actuator (30) is disposed on the connecting plate (12).

9. The underbody protection device for a vehicle according to claim 8, characterized in that, There are multiple connecting plates (12) and multiple pneumatic actuators (30), and each of the multiple pneumatic actuators (30) corresponds to one of the multiple connecting plates (12).

10. A vehicle, characterized in that, Includes the underbody protection device for the vehicle according to any one of claims 1-9.