Vehicle warning board

Abstract

The utility model provides a vehicle warning board which comprises a moving device, an inflation warning board body arranged on the moving device and a quick inflation mechanism arranged on the moving device and used for quickly inflating the inflation warning board body, the quick inflation mechanism comprises a first box body arranged on the moving device and an inflation bottle, and at least an inflation opening of the inflation bottle extends into the first box body. The puncturing assembly is arranged on the first box body, and the driving assembly is used for driving the puncturing assembly to puncture the sealing layer at the inflation inlet. According to the vehicle warning board, rapid inflation can be achieved by optimizing the inflation structure, and therefore the deployment speed of the warning board is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile warning signs, in particular to a vehicle warning sign. Background Art

[0002] With the rapid development of modern society, vehicles have undoubtedly become the primary means of daily transportation. However, with the increasing number of vehicles, traffic safety issues have become increasingly prominent. Vehicle warning signs have become a crucial tool for ensuring road safety, especially in the event of a traffic accident or vehicle breakdown. While traditional vehicle warning signs play an important role in alerting oncoming vehicles and preventing secondary accidents, they often suffer from slow inflation and deployment. Utility Model Content

[0003] In view of this, the present invention aims to provide a vehicle warning sign, which can achieve rapid inflation by optimizing the inflation structure, thereby improving the deployment speed of the warning sign.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A vehicle warning sign comprises a mobile device, an inflatable warning sign arranged on the mobile device, and a fast-charging mechanism arranged on the mobile device for quickly inflating the inflatable warning sign;

[0006] The fast charging mechanism includes a first box body arranged on the mobile device, an inflation bottle with at least an inflation port extending into the first box body, a puncture assembly arranged on the first box body, and a driving assembly for driving the puncture assembly to puncture the sealing layer at the inflation port.

[0007] Furthermore, the puncture assembly includes a puncture needle slidably arranged on the first box body, an elastic member arranged between the puncture needle and the first box body, and a pressure rod rotatably arranged on the first box body; when the driving assembly drives the pressure rod to rotate, the pressure rod can push the tail of the puncture needle to make the puncture needle slide toward the inflatable bottle and puncture the sealing layer.

[0008] Furthermore, the mobile device includes a shell and a walking mechanism arranged at the bottom of the shell, the inflation warning sign is arranged on the shell, and the fast charging mechanism is arranged in the shell.

[0009] Furthermore, the cross-section of the shell is circular and includes a top plate and a bottom plate arranged up and down, and a side plate arranged between the top plate and the bottom plate, and the top plate is provided with an avoidance hole for the inflatable warning sign to inflate and stretch.

[0010] Furthermore, it also includes a slow charging mechanism for inflating the inflatable warning sign; the slow charging mechanism includes a second box body arranged in the shell, and a fan arranged in the second box body, the second box body is provided with a connecting hole connected to the inflatable warning sign, and the shell is provided with ventilation matching holes corresponding to the ventilation holes of the second box body.

[0011] Furthermore, it also includes a control unit arranged on the shell, and an obstacle avoidance sensor connected to the control unit, and the control unit is connected to the walking mechanism, the fast charging mechanism and the slow charging mechanism.

[0012] Furthermore, the walking mechanism includes a plurality of walking wheel assemblies arranged on the base plate, and the connecting line of the plurality of walking wheel assemblies is a triangle.

[0013] Furthermore, at least part of the traveling components include traveling wheels and driving parts for driving the traveling wheels to rotate, and each of the driving parts is connected to the control unit.

[0014] Furthermore, the obstacle avoidance sensor is an infrared sensor; and / or, a plurality of LED lights connected to the control unit are provided on the side panel.

[0015] Furthermore, a cover plate for covering the avoidance hole is provided on the top plate; and / or a triangular reflective strip is provided on the inflatable warning sign.

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

[0017] The vehicle warning sign described in the present invention can achieve rapid inflation by optimizing the inflation structure and providing a fast-charging structure, thereby improving the overall deployment speed.

[0018] In addition, the sliding arrangement of the needle and the arrangement of the elastic member provide a buffering effect, reducing the risk of accidental needle punctures and improving operational safety. At the same time, the elastic member allows the needle to quickly reset after puncturing the sealing layer, ensuring the reusability of the mechanism. The arrangement of the drive assembly and the pressure rod enables the puncture assembly to respond quickly, accelerating the deployment of the inflatable warning sign. By providing a housing and a running mechanism at the bottom of the housing, and arranging the inflatable warning sign on the housing, the vehicle warning sign can be made more compact as a whole, convenient for transportation and storage.

[0019] Furthermore, by arranging the cross section of the shell into a circle and providing a side panel between the upper and lower top and bottom panels, this sandwich structure can effectively protect the internal running mechanism and inflation mechanism, maximize the use of the internal space of the shell, and quickly deploy and retract the inflatable warning sign through the avoidance hole provided on the top panel. By providing a slow charging mechanism, the inflated state of the inflatable warning sign can be maintained after the inflatable warning sign is inflated by the fast charging mechanism, or the slow charging mechanism can be used directly to inflate the inflatable warning sign when it is not necessary. The second box body provided with a fan is integrated into the interior of the shell, which can achieve a compact layout, reduce the space occupied by the slow charging mechanism, and avoid damage to the fan due to external impact or wear. The connecting holes and ventilation holes provided on the second box body can also ensure smooth airflow, ensuring that the inflatable warning sign expands evenly and quickly.

[0020] Furthermore, connecting the obstacle avoidance sensor, the traveling mechanism, and the fast charging mechanism and slow charging mechanism can facilitate unified management and coordination of the work of the obstacle avoidance sensor, the traveling mechanism, and the inflation mechanism, thereby realizing intelligent control. Arranging the traveling wheel assembly in a triangular layout on the base plate can ensure the balance of forces in different directions, making the traveling mechanism more stable when moving, reducing the offset or tilt caused by uneven force on the wheels, and also providing better steering flexibility, making the traveling mechanism more agile when turning. By connecting each drive assembly to the unit, it is easy to realize differential control of each moving wheel, further enhancing the agility of the traveling device.

[0021] In addition, using an infrared sensor as an obstacle avoidance sensor can make it unaffected by visible light, enhancing its all-weather capabilities. By installing an LED light connected to the control unit on the side panel, the visibility of the vehicle warning sign during low-light movement can be enhanced. The installation of a cover can protect the structure inside the avoidance hole, preventing the ingress of dust, moisture, and other impurities, extending the service life of the inflatable warning sign. By installing a triangular reflective strip on the inflatable warning sign, the warning sign can be more visible at night or in low-light environments, ensuring the effectiveness of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the vehicle warning sign according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of a vehicle warning sign according to an embodiment of the present utility model;

[0025] Figure 3This is a schematic structural diagram of the inflation mechanism of an embodiment of the utility model;

[0026] Figure 4 for Figure 3 Partial view at point D in the middle;

[0027] Figure 5 This is a schematic structural diagram of the slow charging mechanism according to an embodiment of the present utility model;

[0028] Figure 6 This is a structural diagram of the inflatable warning sign according to an embodiment of the present utility model;

[0029] Description of reference numerals:

[0030] 11. Housing; 111. Top plate; 1111. Avoidance hole; 1112. Power switch; 1113. Control unit; 112. Side plate; 1121. LED light; 1122. Ventilation fitting hole; 113. Bottom plate; 1131. Obstacle avoidance sensor;

[0031] 2. First box body; 21. Fast charging mechanism; 211. Guide block; 212. Limit block; 213. Connecting block; 214. Press rod; 215. Needle; 216. Elastic member; 217. Drive assembly; 218. End cap; 219. Gas bottle; 220. Fast charging port; 22. Cover plate;

[0032] 3. Slow charging mechanism; 31. Second box body; 32. Fan; 311. Ventilation hole; 312. Communication hole;

[0033] 4. Traveling mechanism;

[0034] 5. Inflatable warning sign; 51. Warning sign body; 52. Support part; 53. First inflation port; 54. Second inflation port. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0036] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0037] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0038] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] This embodiment relates to a vehicle warning sign, which can achieve rapid inflation by optimizing the inflation structure, thereby improving the deployment speed of the warning sign.

[0041] In terms of overall structure, Figures 1 to 4 As shown, this embodiment relates to a vehicle warning sign, including a mobile device, an inflatable warning sign 5 provided on the mobile device, and a fast charging mechanism 21 provided on the mobile device for quickly inflating the inflatable warning sign 5.

[0042] The fast charging mechanism 21 includes a first box body 2 arranged on the mobile device, an inflation bottle 219 with at least an inflation port extending into the first box body 2, a puncture assembly arranged on the first box body 2, and a driving assembly 217 for driving the puncture assembly to puncture the sealing layer at the inflation port.

[0043] Based on the above overall introduction, the vehicle warning sign of this embodiment can achieve rapid inflation by optimizing the inflation structure and providing a fast-charging structure, thereby improving the overall deployment speed. In addition, in this embodiment, during specific implementation, the inflation cylinder 219 can adopt a carbon dioxide inflation cylinder 219 well known to those skilled in the art, and this will not be described in detail.

[0044] In this embodiment, as a preferred implementation form, Figure 3 and Figure 4As shown, the puncture assembly includes a puncture needle 215 slidably mounted on the first box body 2, an elastic member 216 disposed between the puncture needle 215 and the first box body 2, and a pressure rod 214 rotatably mounted on the first box body 2. When the driving assembly 217 drives the pressure rod 214 to rotate, the pressure rod 214 can push the tail of the puncture needle 215, so that the puncture needle 215 slides toward the gas-filled bottle 219 and punctures the sealing layer.

[0045] The advantage of such a setting is that the sliding setting of the puncture needle 215 and the setting of the elastic member 216 can provide a buffering effect, reduce the risk of accidental puncture by the puncture needle 215, and improve the safety of operation. At the same time, the elastic member 216 can enable the puncture needle 215 to be quickly reset after puncturing the sealing layer, ensuring the reusability of the mechanism. By setting the drive component 217 and the pressure rod 214, the puncture component can respond quickly, thereby accelerating the deployment speed of the inflatable warning sign 5.

[0046] In this embodiment, the first housing 2 further includes a guide block 211 for supporting and guiding the puncture needle 215, a stopper block 212 for limiting the position of the puncture needle 215, a connecting block 213 for connecting to the gas bottle 219, and an end cap 218 provided on the outer wall of the first housing 2 for protecting the gas bottle 219. The guide block 211, stopper block 212, connecting block 213, and end cap 218 are all screwed to the first housing 2. This arrangement facilitates assembly of the puncture assembly. Furthermore, the connecting block 213 can be replaced to accommodate gas bottles 219 with different inflation port specifications. Furthermore, preferably, the elastic member 216 provided between the puncture needle 215 and the first housing 2 in this embodiment is a spring.

[0047] In this embodiment, as a preferred implementation form, Figure 1 As shown, the mobile device includes a shell 11 and a walking mechanism 4 arranged at the bottom of the shell 11, an inflation warning sign 5 is arranged on the shell 11, and a fast charging mechanism 21 is arranged in the shell 11.

[0048] By providing the shell 11 and the running mechanism 4 at the bottom of the shell 11 , and arranging the inflatable warning sign 5 on the shell 11 , the vehicle warning sign as a whole can be made more compact, and convenient for transportation and storage.

[0049] At this time, as set up above, in this embodiment, as a preferred implementation form, the cross-section of the shell 11 is circular and includes a top plate 111 and a bottom plate 113 arranged vertically, and a side plate 112 arranged between the top plate 111 and the bottom plate 113. The top plate 111 is provided with a avoidance hole 1111 for the inflation and expansion of the inflatable warning sign 5. This sandwich structure can effectively protect the internal running mechanism 4 and fast charging mechanism 21, maximize the utilization of the internal space of the shell 11, and also allow the inflatable warning sign 5 to be quickly deployed and recovered through the avoidance hole 1111 provided on the top plate 111.

[0050] In addition, in a specific implementation, a control panel and a power switch 1112 are also provided on the top plate 111 arranged above. The power switch 1112 and the controller are connected to the upper panel by screwing, ensuring that they are firmly fixed and easy to replace and maintain.

[0051] And, in this embodiment, as a preferred implementation form, as Figure 5 As shown, it also includes a slow charging mechanism 3 for inflating the inflatable warning sign 5. The slow charging mechanism 3 includes a second box body 31 arranged in the shell 11, and a fan 32 arranged in the second box body 31. The second box body 31 is provided with a connecting hole 312 connected to the inflatable warning sign 5, and the shell 11 is provided with a ventilation matching hole 1122 corresponding to the ventilation hole 311 of the second box body 31.

[0052] By setting up a slow charging mechanism 3, the inflated state of the inflatable warning sign 5 can be maintained after the fast charging mechanism 21 inflates the inflatable warning sign 5. The slow charging mechanism 3 can also be used directly to inflate the inflatable warning sign 5 when it is not necessary. The second box body 31 provided with a fan 32 is integrated inside the shell 11, which can achieve a compact layout, reduce the space occupied by the slow charging mechanism 3, and avoid damage to the fan 32 due to external impact or wear. The connecting holes 312 and ventilation holes 311 provided on the second box body 31 can also ensure smooth airflow, ensuring that the inflatable warning sign 5 expands evenly and quickly.

[0053] In addition, in the specific implementation, in detail, such as Figure 6 As shown, the inflatable warning sign 5 of this embodiment also includes a support portion 52 and a warning sign body 51. The support portion 52 is provided with a first inflating port 53 connected to the fast-charging structure and a second inflating port 54 connected to the slow-charging mechanism 3. The support portion 52 of the inflatable warning sign 5 is bonded to the bottom of the first box body 2, the first inflating port 53 abuts the fast-charging port 220, and the second inflating port 54 abuts the slow-charging mechanism 3.

[0054] In this embodiment, as a preferred implementation form, Figure 1 and Figure 2 As shown, the device further includes a control unit 1113 provided on the housing 11, and an obstacle avoidance sensor 1131 connected to the control unit 1113. The control unit 1113 is also connected to the traveling mechanism 4, the fast charging mechanism 21, and the slow charging mechanism 3. This arrangement facilitates unified management and coordination of the operations of the obstacle avoidance sensor 1131, the traveling mechanism 4, the fast charging mechanism 21, and the slow charging mechanism 3, thereby achieving intelligent control. In addition, the user can easily set parameters and monitor device status through the control unit 1113, thereby improving the ease of operation.

[0055] It should be noted that, in a specific implementation, the control unit 1113 also includes a Bluetooth module. When in use, the control unit 1113 can be remotely operated via a mobile phone via the Bluetooth module, thereby further ensuring the safety of the operator. Of course, related structures not mentioned in the control unit 1113 in this embodiment, such as the display screen and Bluetooth module, can adopt various structures of related products well known to those skilled in the art.

[0056] It is understood that, in this embodiment, as a preferred implementation form, the running mechanism 4 includes a plurality of running wheel assemblies provided on the base plate 113, and the connecting line of the plurality of running wheel assemblies is triangular. Thus, by arranging the running wheel assemblies in a triangular layout on the base plate 113, it is possible to ensure force balance in different directions, making the running mechanism 4 more stable when moving, reducing deviation or tilt caused by uneven force on the wheels, and also providing better steering flexibility, making the running mechanism 4 more agile when turning. In addition, compared to other polygonal layouts, the triangular layout is structurally simpler, helping to reduce manufacturing costs and design complexity, and can also reduce maintenance costs and enhance market competitiveness.

[0057] In this embodiment, as a preferred implementation form, at least part of the traveling assembly includes traveling wheels and a driving unit for driving the traveling wheels to rotate, and each driving unit is connected to the control unit 1113. The advantage of such a configuration is that it can facilitate differential control of each traveling wheel, further enhancing the agility of the traveling device.

[0058] In this embodiment, as a preferred implementation, obstacle avoidance sensor 1131 is an infrared sensor. This configuration makes obstacle avoidance sensor 1131 unaffected by visible light, enhancing its all-weather obstacle avoidance capabilities. Furthermore, multiple LED lights 1121 connected to control unit 1113 are provided on side panel 112 to enhance the visibility of the vehicle warning sign during low-light travel. Furthermore, the low energy consumption of LED lights 1121 increases the vehicle warning sign's operating life.

[0059] It should be noted that in this embodiment, during specific implementation, related structures not mentioned in the control unit 1113 of this embodiment, such as the LED light 1121, the obstacle avoidance sensor 1131, etc., can adopt various structures in related products well known to those skilled in the art.

[0060] In this embodiment, as a preferred implementation, a cover plate 22 is provided on the first box body 2 to cover the avoidance hole 1111. At the same time, a triangular reflective strip is provided on the inflatable warning sign 5. The provision of the cover plate 22 protects the structure within the avoidance hole 1111, preventing the ingress of dust, moisture, and other impurities, thereby extending the service life of the inflatable warning sign 5. Furthermore, the provision of the reflective strip improves the visibility of the warning sign at night or in low-light environments, ensuring the effectiveness of the device. Furthermore, the inflatable warning sign 5 can also preferably be provided with a cold light line, which further enhances its visibility at night.

[0061] When installing the fast charging assembly in this embodiment, first screw the guide block 211 into the first box body 2, then put the elastic member 216 on the needle 215, then insert the needle 215 into the first box body 2, screw the limit block 212 into the first box body 2, then hinge the pressure plate to the first box body 2, and then screw the connecting block 213 on the other side, and then screw the inflation port of the inflation bottle 219 into the connecting block 213, and finally screw in the end cover 218 to fix the gas bottle.

[0062] During implementation, the vehicle warning sign of this embodiment is powered on by pressing power switch 1112. A mobile phone can then connect to control unit 1113 via Bluetooth, allowing remote control of the vehicle warning sign's deployment. Furthermore, pressing power switch 1112 for one second automatically switches the vehicle warning sign into automatic mode. In this mode, LED lights 1121 on side panels 112 automatically illuminate upon receiving a signal from control unit 1113. The walking mechanism 4, guided by control unit 1113 to its designated deployment location, receives signals from obstacle avoidance sensor 1131.

[0063] When recovery is required, the vehicle warning sign can be automatically returned under the guidance of the obstacle avoidance sensor 1131 through the mobile phone Bluetooth remote control. During the return process, the LED light 1121 on the side panel 112 will continue to light up to improve the visibility of the vehicle warning sign under various conditions.

[0064] In addition, when the fast charging component in this embodiment is implemented, the driving component 217 pushes the pressure rod 214 to rotate, pressing the tail of the needle 215, so that the needle 215 slides toward the inflation bottle 219 and pierces the sealing layer. The gas enters the first inflation port 53 provided on the inflation warning sign 5 through the quick inflation port 220 provided on the first box body 2, causing the inflation warning sign 5 to expand. Subsequently, the slow charging mechanism 3 intervenes to work, and the fan 32 provided in the second shell 31 blows air into the second inflation port 54 provided on the inflation warning sign 5 to maintain the inflation state of the inflation warning sign 5 and prevent the inflation warning sign 5 from collapsing.

[0065] When the inflatable warning sign needs to be recovered, the fan 32 provided in the second box body 31 receives the instruction from the control unit 1113 to reverse, changing from blowing to exhausting, and the fan 32 provided in the second shell 31 blows out the air from the second inflation port 54 provided on the inflatable warning sign 5, and retracts the inflatable warning sign 5 into the first shell 11.

[0066] The vehicle warning sign of this embodiment can achieve rapid inflation by optimizing the inflation structure and setting a fast-charging structure, and can achieve automatic deployment by setting a mobile device, thereby improving the overall deployment speed. The vehicle warning sign of this embodiment can achieve rapid inflation by optimizing the inflation structure and setting a fast-charging structure, and can achieve automatic deployment by setting a mobile device, thereby improving the overall deployment speed. The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A vehicle warning sign, characterized by: It comprises a mobile device, an inflatable warning sign (5) arranged on the mobile device, and a fast-charging mechanism (21) arranged on the mobile device for quickly inflating the inflatable warning sign (5); The fast charging mechanism (21) comprises a first box body (2) arranged on the mobile device, a gas filling bottle with at least a gas filling port extending into the first box body (2), a puncture assembly arranged on the first box body (2), and a driving assembly (217) for driving the puncture assembly to puncture the sealing layer at the gas filling port.

2. The vehicle warning sign according to claim 1, characterized in that: The puncture assembly comprises a puncture needle (215) slidably arranged on the first box body (2), an elastic member (216) arranged between the puncture needle (215) and the first box body (2), and a pressure rod (214) rotatably arranged on the first box body (2); When the driving assembly (217) drives the pressure rod (214) to rotate, the pressure rod (214) can push the tail of the puncture needle (215) so that the puncture needle (215) slides toward the gas-filled bottle and punctures the sealing layer.

3. The vehicle warning sign according to claim 1, characterized in that: The mobile device comprises a housing (11) and a walking mechanism (4) arranged at the bottom of the housing (11); the inflation warning sign (5) is arranged on the housing (11); and the fast charging mechanism (21) is arranged in the housing (11).

4. The vehicle warning sign according to claim 3, characterized in that: The housing (11) has a circular cross-section and comprises a top plate (111) and a bottom plate (113) arranged up and down, and a side plate (112) disposed between the top plate (111) and the bottom plate (113). The top plate (111) is provided with an escape hole (1111) for the inflatable warning sign (5) to be inflated and extended.

5. The vehicle warning sign according to claim 4, characterized in that: It also includes a slow-charging mechanism (3) for inflating the inflatable warning sign (5); The slow charging mechanism (3) comprises a second box body (31) arranged in the housing (11), and a fan (32) arranged in the second box body (31); the second box body (31) is provided with a connecting hole (312) connected to the inflation warning sign (5); and the housing (11) is provided with a ventilation matching hole (1122) corresponding to the ventilation hole (311) of the second box body (31).

6. The vehicle warning sign according to claim 5, characterized in that: It also includes a control unit (1113) provided on the housing (11), and an obstacle avoidance sensor (1131) connected to the control unit (1113), and the control unit (1113) is connected to the walking mechanism (4), the fast charging mechanism (21), and the slow charging mechanism (3).

7. The vehicle warning sign according to claim 6, characterized in that: The walking mechanism (4) comprises a plurality of walking wheel assemblies arranged on the bottom plate (113), and the connecting line of the plurality of walking wheel assemblies is in the form of a triangle.

8. The vehicle warning sign according to claim 7, characterized in that: At least part of the running wheel assembly includes a running wheel and a driving unit for driving the running wheel to rotate, and each of the driving units is connected to the control unit (1113).

9. The vehicle warning sign according to claim 6, characterized in that: The obstacle avoidance sensor (1131) is an infrared sensor; and / or, The side panel (112) is provided with a plurality of LED lights (1121) connected to the control unit (1113).

10. The vehicle warning sign according to any one of claims 4 to 9, characterized in that: The first box body (2) is provided with a cover plate (22) for covering the avoidance hole (1111); and / or, The inflatable warning sign (5) is provided with a triangular reflective strip.

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